Lifting Hooks Design For Precast Concrete

22 February, 2018. MIDLAND, VA / ACCESSWIRE / May 7, 2020 / Easi-Set, a subsidiary of publicly traded Smith Midland Corp (SMID), announced that their MASH TL3-tested J-J Hooks temporary precast concrete safety. Flat Lifting Socket is ideal for large, thin precast concrete components such as slabs and shells, on which it's hard to place normal lifting sockets because of the thin thickness of the component. Whether you’re redirecting the flow of traffic during construction on highways, in parking lots or anywhere else traffic needs to be blocked, Precast JJ Hook Temporary Median Barriers from Seminole Precast Manufacturing, Inc. Document Length. Specification Suitable wood connect swing,Max load bearing 250kg. 4 All components plus lifting frame (if required) shall not exceed 8 tonnes. Balconies are produced under factory conditions and are made to suit the client’s requirements and to match floor and finishes depths. PRECAST CONCRETE: Precast concrete is a construction product produced by casting concrete in a reusable mould or "form" which is then cured in a controlled environment, transported to the construction site and lifted into place. Lifting hooks allow precast concrete panels to be lifted into position on site and for lifting onto transport wagons. Case studies of BIM adoption for precast concrete design by mid-sized structural engineering firms. Proof load 2 times WLL. Buy Timelapse Construction Site Crane Is Lifting a Precast Concrete Wall Panel To Installation Building by SergGrbanoff on VideoHive. JENKA Short Inserts are used in applications. Forms shall be cleaned before each use. When used with Peikko’s modern design tools, they improve competitiveness and efficiency for your business. This is a J-J Hook concrete barrier. , Load Width 3" to 24", Headroom 33-7/16" Product Overview. "Two men and a truck can install 6,000 feet in one shift" Types of Barrier. Backfill with granular free draining material (sand or pea gravel) free of stones or cobbles greater than 4" in dia. The design of the P-50 Universal Lifting Eye permits the ball to freely rotate 180°, while the com-plete lifting eye may rotate through a 360° arc. Bayshore Concrete Products Corp. In the precast concrete industry, everything about lifting devices is the antithesis of one size fits all. The steel is typically welded-wire fabric (Grade 65) or rebar (Grade 60). 22 February, 2018. 1 Work Includes: Precast, prestressed structural concrete components as shown on the Drawings, specified herein, and needed for complete and proper installation, including: A. +353 (0)46 95 55116 | UK +44 (0)131 516 7507 | +44 (0)203 432 4901. C-hooks: technical features. There are three sizes available to handle from ¾" to 1 ½" cable with capacity up to 36000 lb. AS3850-2003 Tilt-up Concrete Construction National precast Concrete Association of Australia. China Precast Concrete Lifting Anchors manufacturers - Select 2020 high quality Precast Concrete Lifting Anchors products in best price from certified Chinese Light Weight Concrete manufacturers, Construction Concrete Plywood suppliers, wholesalers and factory on Made-in-China. They efficiently handle concrete water and sewer pipes. OEM service is available. Shawn Yu Unit Manager 303-757-9474 Email Shawn. Specification 829 Precast Concrete Parapet Panels – 04/10140 Issued 03/05/2017 Document No: DXX#XXXX Page 4 of 9 Contract No: XXX/XX [Contract Name] SPECIFICATION 829 PRECAST CONCRETE PARAPET PANELS GENERAL 829. DB Anchor Lift System Economical and effective way to lift your concrete element. Precast stairs are manufactured using C40 concrete mix and will provide one-hour fire resistance. Precast Concrete Bearing Wall Panel Design (Alternative Design Method) (Using ACI 318-11) A structural precast reinforced concrete wall panel in a single-story building provides gravity and lateral load resistance for the following applied loads: Weight of 10DT24 = 468 plf Roof dead load = 20 psf Roof live load = 30 psf. There are three sizes available to handle from ¾" to 1 ½" cable with capacity up to 36000 lb. Buildings designed using these principles will fare better in a seismic Design Examples Design for Concrete Structures 11 - 10 Opened 90° hook on hoops. Design based Solutions for a Precast Concrete Manufacturer Requirement: Technologies:?To reduce design time for a box culvert assembly VB, Inventor Solution:?Developed an application to automate the process of creating Unit & Assembly drawings?Application is capable of creating 3D models of units and complete assembly drawings with joints &. We’ve been selling high-quality concrete fasteners for 32 years. Servicing: Victoria, Tasmania & South Australia. The P-50 SL Universal Lifting Eye is not recommended for edge lifting of thin precast con-. • Walk under a suspended culvert. Threaded Socket. Best known for its design of structures that. Due to reinforcement, force is transmitted to precast concrete element. A spreader beam to be used with steel pins and lifting cables to avoid cracking at junction of side wall and base slab. § The example in Section 8. Lifting Instructions and Equipment for Standard Range Precast Headwalls. • Cylinder Length: Tolerance for the length of the each of the precast concrete cylinders shall be plus or minus (±) 1/2 inch. The design for Terwa threaded lifting anchors and technical instructions are according to the national German rule VDI/BV-BS6205 “Lifting inserts and lifting insert for precast concrete elements”. This design approach can take several forms, including precast columns and beams with panelized clad-. Steel lifting hooks shall be cut flush with the surface of the concrete, cleaned to bright metal and coated with two coats of coal tar epoxy. The minimum chain leg length for all units is 1500mm. TELEPHONE 028 6632 6437 FAX 028 6632 4908 From ROI (048) EMAIL [email protected] Panels of any shape can be modelled with standard lifting configurations automatically created by the software. Dispense and Drive Fencer's Cement Hog The EZ Grout Fencer's Cement Hog® lets fence contractors dispense cement while driving along the fence line. Stone lifting device to set stone. All PHILIPP Transport anchors are designed in a way that the anchors have a threefold safety and the lifting devices a. They have been designed so that they cannot spontaneously disengage whlist the system is under load at any orientation, provided they are connected to the head of the correct. Thousands of new, high-quality pictures added every day. National and International Portfolio of Works. •essive design flexibility – moulds can be built to Impr suit many unique design requirements. Available in two different models that operate the same way, the 1 Cubic Yard model (FCH100) is the largest. Precast modular block retaining wall blocks under this section shall be cast utilizing a wet-cast concrete mix and exhibit a final handling weight in excess of 450 kg per unit. Handling, transporting and erecting precast concrete. 1 Precast prestressed slabs spanning between walls with composite. Counterweight Blocks admin 2020-03-12T16:15:38+00:00 Counterweight Blocks Our security blocks , Interlocking concrete blocks and Vee™ interlocking blocks all make excellent counterweight blocks for fall arrest systems, heavy lifting equipment etc. With October designated ‘National Safe Work Month’, Ancon is putting an extra focus on identifying and removing potential work-related risks so that no. Tilt-up panels are a good example of a type of construction in which provision must be made for lifting. Like the lifting tongues designed by ACIMEX, the C-hook is a handling device used for moving and stacking breakwaters. Intended for use during transient situations for lifting and handling and not for the service life of the structure. When lifting and carrying precast elements, the lifting load has to be. Hoist hooks, sling hooks and other rigging and lifting hooks are essential for many rigging applications, but can differ widely in design, strength and capacity. Precast concrete lifting systems are used extensively throughout the industry and provide a safe, effective and efficient way of moving and positioning precast units. Seminole Precast Manufacturing, Inc. Be sure to check your. The lifting rings are attached to a counter sunk bolt on the concrete side. new braunfels, tx (36" single slope concrete barrier). Design Precast & Pipe has changed the concrete pipe industry forever. The lifting hooks go into the panels during production. 5" wide at the top. 3 illustrates the design of a special precast concrete shear wall for a. Share this page. NEW Construction Site Systems. Seldom has the concrete construction industry been introduced to products that completely transform existing construction methods. Specifications for Bridge Construction Section 7, Precast Concrete Units 7 - 5 7. Cement Standards and Concrete Standards ASTM's cement and concrete standards are instrumental in the evaluation and testing of concrete, cement, and aggregates. Skip navigation Precast Concrete Sound Wall. Lifting and Transportation. National Block carries a variety of widths and heights to accommodate the size of your entry. Amongst the products offered are automatic lifting hooks, swivel and eye hooks, clevis, shank and chain hooks. 7) and installation details to the Administrator, not less. The composition of the concrete for precast concrete median barrier is different than the concrete mixes previously discussed. Screed Rails. Free-Standing, Bolted or Pinned Concrete Safety Barriers. • Offload using a hook as this is extremley dangerous and will damage the culvert. This document explains the industry guidelines to establish a safe working environment when using precast and tilt-up concrete in construction. Ready-made precast stairs ready in the factory and bring to the exact place for installation directly they on the site. Joshua Palmer. Model CPL - 3000 to 30000 pound capacities. A wide variety of precast concrete lifting hooks options are available to you, such as steel, iron. Whether you're talking shape, size, placement or quantity, what works for one product many not work for another and, more importantly, may not be safe. FP McCann Storm Water Management System to provide flood relief to Leicestershire town. Lifts all heights of gully up to and including 1200mm. The barriers when placed on site form a continuous chain of positively interlocked safety barriers capable of accommodating varying horizontal and vertical alignments. Identical ends allow the. Dispense and Drive Fencer's Cement Hog The EZ Grout Fencer's Cement Hog® lets fence contractors dispense cement while driving along the fence line. Seldom has the concrete construction industry been introduced to products that completely transform existing construction methods. Wherever the design of the element (i. Lifting and Transportation. Precast Concrete Construction Figure 12: Post-tensioned slab-column connection (WHE Report 68, Serbia and Montenegro) poured on the ground in forms, one on top of the other, as shown in Figure 11. and Coastal Precast Systems LLC are producing massive tubs for 60 pile caps and 59 pier caps, respectively, in their Virginia operations. We’ve been selling high-quality concrete fasteners for 32 years. The J-J Hooks® Concrete Safety Barrier from Australian Road Barriers Pty Ltd is a precast reinforced concrete barrier incorporating the patented J-J Hooks® connection system. - the design of the lifting inserts independently placed on the market; - lifting inserts for permanent and repeated use. 2 SUBMITTALS 1. Precast Concrete Technology & Lifting equipment from BETA BETA offers tailor-made solutions in the fields of concrete factory technology and lifting technology. Not sure what you are looking for? Try the Product Finder. Accordingly, the analysis procedures described in the following sections focus on the behavior of precast prestressed concrete beams during lifting. The reasons for selection may be technical, economic, or may be due to the lifting equipment already owned. Crane hooks are classified depending on their manufacturing materials as well as the intended usage and, (amongst other factors) according to this, some aspects are more important than others. 5 Floor-to-floor height is usually 3. The same equipment can be used for lifting most hollowcore slabs in the plant, stockyard and on the construction site. The precast slab is a precast reinforced concrete floor plate, forming the lower part of a floor and providing all or part of the underlying reinforcement of the floor. The barriers when placed on site form a continuous chain of positively interlocked safety barriers capable of accommodating varying horizontal and vertical alignments. Precast Concrete Stairs – fast installation of durable, fire resistant flights and landings, for any types of building. 704(d) Lifting Hardware Capable of -Hooks with self-closing latches or their equivalent must be used. Lifting Instructions and Equipment for Standard Range Precast Headwalls. • Stacking : U-drains are to be stacked on level and stable ground to avoid cracking of base slab. ATTACHMENT DESIGN: 1. LinkPro is easily installed, without recess formers, ready for direct connection to standard lifting hooks and shackles. Grout in dowels to top wall panels if detailed 6. dimensions shown on this sheet are precast notes b d c a a b b a bar a bar h bar s a 5 06 type size series sheet. They make remediation work easy. An easy method of placing precast concrete manhole components in the field. Load rating marked on each hook body. openings near the grate edges to function as lifting points for lifting hooks, and 1 ½ x 5 ½” x 1/8” metal plate with NYC DEP logo, shop drawing to be provided. Load Transfer Systems. Lock-Block™ concrete units are ideal for a range of commercial and industrial projects and are also customizable to meet any construction need. Other connection types are available upon request. Temporary Railing (Type K), also known as K-Rail or Krail, is the State of California Department of Transportation (Caltrans) specification for temporary concrete barrier rail. Concrete’s high initial embodied energy can be offset by its extended life cycle (up to 100 years) and high potential for reuse and relocation. Lifting hooks and connections need to be strong enough and placed in the designed position, otherwise they may fail, causing the component to crack or break. Containment by compartmentalizing the design with a precast concrete structural system limits damage and may allow occupants more time to evacuate the premises. When in Design Changes Dayton Superior reserves the right to change product designs, rated loads and product dimensions at any time without prior notice. Precast Beams. lifting products are reliable and have proven to be safe, economical and user friendly. DELTABEAM ® Slim Floor. Founded in 1985, Long Island Precast, Inc. PART 1 - GENERAL. Easy to move with lifting cables in the top and fork holes in the bottom. Concrete vacuum lifters come in the following specifications:-415 volt mains operation - For inside factory applications. This document explains the industry guidelines to establish a safe working environment when using precast and tilt-up concrete in construction. Permanent Joint Fillers. typical reinforcement, welded wire fabric 6x6x4wx4w. Seal any lifting holes with non-shrink grout. Contractor to procure lifting hooks for lifting metal grate as well as G-Clip wrench to be used for inlet maintenance activities. Whether you’re redirecting the flow of traffic during construction on highways, in parking lots or anywhere else traffic needs to be blocked, Precast JJ Hook Temporary Median Barriers from Seminole Precast Manufacturing, Inc. Our ISO 9001:2008 Quality Assurance Program ensures all processes are controlled and implemented per defined procedures providing the highest level of product quality. 32 t/m2 55t crane lifting 3. 20, “Below the hook lifting devices”. Access ladders/step irons. The finished precast concrete parts need to lifted with great care to prevent them from getting damaged. The universal head lifting links (UHL) can be locked to the anchor in seconds to enable the unit to be lifted and transported. The horizontal panel joint between adjacent wall sections shall align. LIFTING HOOKS SHALL BE CUT OFF FLUSH WITH CONCRETE SURFACE AND ENDS EPOXY COATED AFTER THE PILE IS IN POSITION READY FOR DRIVING. Originally developed and patented by the Smith-Midland Corporation in 1990, J-J Hooks licensed producers have sold over 12 million linear feet of this "lowest-cost-to-produce" precast concrete barrier. Lifting Sockets; Please refer to data sheets for technical information on our range of Threaded Fixing and Lifting Cast In Sockets available from PCT as a Technical. The first Reinforced Concrete Design Manual (formerly titled ACI Design Handbook) was developed in accordance with the design provisions of 1963 ACI 318 Building Code by ACI Committee 340, Design. Our Services Benzini prides itself on outstanding personalised customer service that is only found in an owner / proprietor type small business both during the process and after delivery. Safety has to be the number one consideration when lifting a precast or tilt-up concrete element. The range includes: Threaded Lifting Systems; Capstan (Lifting Anchor) Systems; Spread Anchor Systems; Magnetic Formwork Systems; Cast in Channel; We also stock a full range of precast accessories, chemicals and concrete. 91 5) Air Entraining Admixture. Handling, transporting and erecting precast concrete. The founder of Century Steps®, Inc. Precast Balconies. Design by Easi-Set Industries. Specification Suitable wood connect swing,Max load bearing 250kg. and the min. invented the first precast concrete step and was the first to mass-produce them. 06-28-19: renamed and redrew reinforcing steel: astm a615, fy=60,000 pounds per square inch. LECWall - Precast Concrete Wall and Column Design Program. concrete: fc’=4,500 pounds per square inch responsibility of the fabricator. Bolted Column. The industry's most recognized concrete barrier design Precast Concrete Barrier. Usage of Prestressed Concrete: By using pre-stressed precast, structural materials of high strength and load-bearing capacity can be achieved, which can result in greater clear span, reduced size of the cross-section of structural members, etc. J-J Hooks Concrete Safety Barriers: Free-standing, Bolted or Pinned installations. Although operating with a “lighter” load than Bayshore Concrete and Coastal Precast, Massachusetts-based Unistress Corp. We supply suitable moulds for your ceiling and wall panels, structural precast. National Precast Concrete Association USA Net-Temps Ltd O. Introduction 2 The concrete industry Over 35 million tonnes of. Strongbacks. offers a full line of Sanitary Sewer Components ranging from small diamter manholes to large diameter round and square lift stations. Architects love to design buildings with design elements such as precast concrete window panels and sills, beams, wall panel details, decorative concrete blocks, precast concrete moldings, walls, wall systems, and retaining walls. This system is a high quality, high strength, quick connect disconnect. A hook may have one or more built-in pulley sheaves as a block and tackle to multiply the lifting force. WorkSafe WA recently issued a safety alert about the design, manufacture and lifting of precast concrete components following an fatal incident involving a concrete soakwell lid. Precast concrete opens up limitless possibilities to contractors, engineers, designers, and architects throughout building life cycle. Complete handling analysis with two or four point pick and user specified form and impact factors. The Adjustable Lifting Grab can handle loads as narrow as 3", as wide as 60" and any size in. A lifting hook is usually equipped with a safety latch to prevent the disengagement of the lifting wire rope sling, chain or rope to which the load is attached. The precast-concrete. The Omnia slab is a reinforced precast concrete slab which incorporates a lattice girder to provide stiffness and facilitate the placement of the top mesh. Precast Slabs. From consultation and design, though manufacturing and on to installation and maintenance services, we do everything possible to ensure that our customers have the best equipment possible. Lifting devices such as slings, chain, steel wire, cable and rope should be placed around the pipe and arranged so that the pipe is lifted in a horizontal position. Crushed stone footings shall be consolidated using a vibratory plate in a maximum of 8-inch (203 mm) lifts. holds TZC's largest precast contract: A $70 million order for 6,000 prestressed deck panels measuring 40- x 12-ft. The body has a "T" slot that engages the head of a Lifting Pin Anchor. National Precast Concrete Association Safety Program of the Quarter - Fall 2007 Chains and Slings 2 Components of a Safe and Successful Lift • Lifting Equipment - Overhead Crane, Forklift, Travel Crane, etc. shelve to be bricks laid flat at a slope of 1" per foot (4) multiples of 2',3',or4' concrete fill. Reinforcement earthing connections. EdjPro System. PanelsPlus is a finite element software package for the lifting analysis, design and detailing of precast and tilt-up concrete panels. LIFTING EyE Designed as an attachment link for lifting and transport of precast concrete units in combination with the Lifting Pin Anchor System, the Lifting Eye consists of a round body with a protruding lever arm and a high strength bail. LinkPro is easily installed, without recess formers, ready for direct connection to standard lifting hooks and shackles. We have also created smaller platforms for miscellaneous settings. Drawings and general provisions of the contract, including General and Supplementary. 00 each including GST. Feb 10, 2020 - Aardwolf Industries Sole LLC Hamlet 1B, An Phu Ward,Thuan An District, Binh Duong Province, VietNam PHONE: +84 650 3712840 WEB: www. Stelmack, Parsons Figure 1. PRECAST STRUCTURAL CONCRETE. As such Benzini are able to interpret design ideas and drawings and can help facilitate the process of creating new works involving precast concrete. A-LOK Products manufactures the KEY-LOK Lift System with certified lift pins, lift bars and durable lift inserts for Precast Concrete. C-hook pipe lifters handle up to 8'L sections of precast concrete pipe. Product properties The WRA Lifting System is a lifting insert system designed for lifting and handling precast concrete elements. org to get a copy of precast concrete manual, you will find it is quite useful. Adjustable seat. Partial composite action between wythes, user specified from 0% to 100%. (616) 261-8630 wyoming, mi 49509 1505 44th street, suite b (281) 931-9832 houston, texas, 77060 15055 henry road all barrier inquires 1-877-387-9266 main office/plant 15055 henry rd. Application Videos. The problem, though, is strand slices through concrete when subject to shear, so that it has limited use for handling thin panels. PRECAST CONCRETE ENCLOSURE COMPANIES. At Reid, it is our mission to provide finished cost control in concrete construction, through the development and delivery of products and systems that make concrete construction. techniques, it was found that the case of a prestressed concrete girder during lifting was the most critical condition when considering catastrophic failures. H2101C for other typical details of below the carriageway by 250. The universal head lifting links (UHL) can be locked to the anchor in seconds to enable the unit to be lifted and transported. These lifting loops are suitable for axial and diagonal lifting, with a maximum sling angle of 60°, from manufacture until final installation of the precast concrete element. – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow. ALP Steel Core Lift Loops provide a secure, economical option for face lifting precast. AS3850-2003 Tilt-up Concrete Construction National precast Concrete Association of Australia. ATTACHMENT DESIGN: 1. •Precast Concrete Pavement System (PCPS) –Durable, high-strength concrete delivered from PCI Certified Plants –Concrete mixture adjustments onsite eliminated –Higher quality: materials, fabrication, end products –Immediate opening to traffic –Mild prestressing, continuous reinforcement and/or Post-tensioning. The ALP™ Versa Coil™ System is a versatile product designed for both lifting and leveling of precast pavement panels and precast concrete slabs used for roads and highways. Lintels are lightweight concrete: unit weight 100 pcf, compressive strength 3,000 psi or normal weight concrete: unit weight 126 pcf, compressive strength 3,000 psi. The lifting hooks go into the panels during production. The pipe can then be jointed without moving the jib of the crane. Our lifting equipment features quick engagement and release; ensuring a smooth continuous workflow. For specific questions give us a call and talk to one of the Lift-It sales representatives. The new Caldwell Adjustable Lifting Grab is the variable solution you need on your worksite to handle a wide range of loads. If the building has precast exterior walls only. What it contains. concrete: fc’=4,500 pounds per square inch responsibility of the fabricator. About WRA Lifting System 1. Cast-In-Situ Structures. For anything precast concrete, Shea Concrete Products is New England’s answer. Erection Lift backwall units by the lifting hooks located in the backwall segments. Sling Hook Eye Type Eye Sling Hooks are a general purpose hook suitable for most slinging applications. design factor 5:1. lifting foot lifting anchors for precast concret precast swift lift anchor precast concrete edging headed concrete anchor suppliers Subtotal Depends on the order quantity. INWESCO partners with precast concrete enclosure companies by designing, engineering, and manufacturing the steel, aluminum, and stainless steel brackets and braces, as well as vault frames/covers, grates, ladders, cable racks, and cable hooks, for the underground precast concrete enclosures that they sell to the various utilities and contractors within. Ideal for blocks of concrete, stone, rough marble, granite, or any other solid material. 02 Precast Type 7 Concrete Barrier 6060140203. Identical ends allow the. Bell mouths. "Tea Cup" Spoon Handle Model SH - For use with PC-3/4 only. Precast concrete balconies are usually purpose-built to tie in with the particular concrete flooring system. The use of precast columns and beams makes an ideal framework for hanging precast panels, creating a design that offers fast construction, structural stability and enhanced fire resistance. The precast concrete units shall be produced in accordance with the approved drawings. M&W Plate Lifting Hooks Are Used For Carrying Plate Steel And Other Industrial Applications. The purpose of this document is to illustrate how the PGSuper computer program performs its computations. adopted when they are integrated with precast façade such as K1F. SwiftLift™ Clutches. Lifting calculation method 3. The Kenco Bin Block Lifter boasts a unique design that allows the lifter to fit perfectly over the keyway systems molded into these precast block. com, of which hooks accounts for 3%, anchors accounts for 1%, and metal building materials accounts for 1%. 22 February, 2018. Crane hooks are classified depending on their manufacturing materials as well as the intended usage and, (amongst other factors) according to this, some aspects are more important than others. Shawn Yu Unit Manager 303-757-9474 Email Shawn. SECTION 03 45 00_PRECAST CONCRETE STRUCTURES. National Block carries a variety of widths and heights to accommodate the size of your entry. We can cast in several different colours with products available to purchase direct from our website www. This connection system contains no loose hardware and the barrier end-design incorporates a self-aligning system for ease of installation and removal. Bolted Column. The module design eliminates the use of ties and ballast. If you have your own shop drawings, this can be provided as raw data, but if we are doing your shop drawings this will be updated onto the actual drawings. provides engineering design and complete product for: box culverts, three-sided spans, bridge systems featuring Stone Strong Retaining Wall abutments, precast concrete bridge beams spanning to 30’, and light-weight precast transverse slabs. Our concrete staircases have been designed with detail in mind and to make their installation a straight forward process. Automatic Elematic E9-16-5a lifting beam for precast wall products improves work site efficiency and safety. During the production process of the elements, the tables are in a horizontal position. The typical precast concrete manhole structure consists of; grade or adjusting rings, a cone or flat slab cover, riser sections, a base section, and frequently a base foundation slab. Intended for use during transient situations for lifting and handling and not for the service life of the structure. FP McCann Storm Water Management System to provide flood relief to Leicestershire town. 2 Offloading Precast Concrete Units (Supply Only) The offloading and installation of pre-cast concrete components is a high risk operation (See Section 3. 4 All components plus lifting frame (if required) shall not exceed 8 tonnes. Joshua Palmer. Supplying lifting and handing products, as well as Supports for Rebar and Mesh, Wire Ties, Chamfer, Prestress and Post Tension Anchors, Strand Chucks, Coil Rod, Nuts & Bolts, Fiber Reinforcement, and much more. Precast concrete structures may be used to house equipment, cables, service connections and splices for the distribution system. With October designated ‘National Safe Work Month’, Ancon is putting an extra focus on identifying and removing potential work-related risks so that no. Observe that dead and live loads only impact mechanisms of Figure 34. 3 MODIFICATION OF REFERENCES 1. More Information Purchase Online. C-hook pipe lifters handle up to 8'L sections of precast concrete pipe. A hook may have one or more built-in pulley sheaves as a block and tackle to multiply the lifting force. Precast Concrete Construction Figure 12: Post-tensioned slab-column connection (WHE Report 68, Serbia and Montenegro) poured on the ground in forms, one on top of the other, as shown in Figure 11. The drawings shall include a schedule, which will list the size and type of precast concrete units. The design of full-depth precast concrete (FDPC) deck panels involves the design of several different components: (1) FDPC deck panel, (2) transverse joint, (3) longitudinal joint, and (4) shear pocket. 75kg: 232892: UNIVERSAL ANCHOR LIFTING EYE 2. making precast easy With an understanding of all the Designer as part of the erection design) • Lifting systems must be correctly installed by a reputable precaster who has a The National Code of Practice for Precast, Tilt-up and Concrete Elements in Building Construction. Structural Failure of Precast-Concrete Span Sets Back Sydney Metro Job lifting up the girder about 700 millimeters from its original position. ACO COVERCOM ®. A wide variety of lifting,holding,fixing and separating magnetic tools. JENKA Long Inserts are used in applications where sufficient anchoring depth is available. The applied facings on our precast stairs are protected by a 1 1/2" overhang. It has a rough upper surface to allow the forming of a monolithic floor once the compression slab is cast. © 2020 Meadow Burke; Lifting America Strong (877) 518-7665. All Photos and Figures: Parsons. Lecture 3 -Precast Concrete in •Somewhat limited buildinggg y design flexibility •It can not be used for two‐way structural systems •Joints between panels are complicated •Skilled workmanship is required •Cranes are required to lift panels plates, blockouts, lifting loops,. The work involves serious Health and Safety considerations and it is unwise to lift concrete without a completely co-ordinated lifting system which has been developed and tested by a specialist. The industry's most recognized concrete barrier design Precast Concrete Barrier. Structural steel inserts, lifting hooks, anchor units, plates, dowels, etc. Dependent on the lifting equipment used, the anchors may be subjected to parallel and. SEMA Precast provides quality precast concrete products, services, and solutions to the construction industry. Precast concrete lifting systems are used extensively throughout the industry and provide a safe, effective and efficient way of moving and positioning precast units. This is backed by our extensive Design & Drafting, specialised transportation system and vast knowledge of the precast concrete industry. +353 (0)46 95 55116 | UK +44 (0)131 516 7507 | +44 (0)203 432 4901. Rebar: ASTM A-615 Grade 60 3. STANDARDS Construction professionals, design engineers and all users of Conlift products should refer to the recommendations of the following statutory authorities, industry groups and publications. We offer a comprehensive range with versatile combinations of payloads, gripping widths and functions of the load bearing equipment. Started in 1964, Bianchi Casseforme Srl, is an expert partner in the design, manufacture and commissioning of plant and machinery for the precast concrete industry. A hook may have one or more built-in pulley sheaves as a block and tackle to multiply the lifting force. PFEIFER supplies a huge range of accessories for closure of the residual recesses. One of the main benefits of this system is the availability of erection anchors for tilting of thin elements with no edge breaking. Click on the links below to find out more information. Additional reinforcement must be used to transmit the load into the concrete. Concrete Lifting Hooks. This Precast Flooring Federation Code of Practice for the safe installation of precast concrete flooring and associated components has now run for several editions and since the first edition in 2001 there have been many developments, not only in Health and Safety legislation, but also in best practice within the industry. Types offered include foundry, grab, self locking, sling and S and J hooks in a wide range of working load limits and trade sizes. 20, “Below the hook lifting devices”. Use with recommended lifting sling. pd cen/tr 15728:2016 Design and use of inserts for lifting and handling of precast concrete elements This document has been re-assessed by the committee, and judged to still be up to date. Hook recesses shall be patched up with 1 : 5 concrete profile barrier. Strongbacks. Concrete Anchor Lift Clutch 1. In this article I am going to discus the various errection procedures of Precast Concrete Products. 01 RELATED DOCUMENTS. The hooks are easy to mount and they give a secure grip for the lift. Developed by professional engineers, Lock-Block™ concrete units are a modern take on the design seen in ancient pyramids around the world. 1: Precast pedestrian bridge deck being lifted in place. reducing working at height, etc. Stone-Lifting clamps are furnished with a 1/2″ stud at the base of the opening for added safety and are capable of lifting up to two tons. Outside the U. The reasons for selection may be technical, economic, or may be due to the lifting equipment already owned. The operator simply sets the tongs of the concrete block lifter down over the block. The P-50 SL Universal Lifting Eye is not recommended for edge lifting of thin precast con-. Contractor to procure lifting hooks for lifting metal grate as well as G-Clip wrench to be used for inlet maintenance activities. In the precast concrete industry, everything about lifting devices is the antithesis of one size fits all. Tracey Concrete offer a diverse range of Cable Trough Systems designed to protect and hold any necessary utility services. Model PC - 6. A lifting hook is usually equipped with a safety latch to prevent the disengagement of the lifting wire rope sling, chain or rope to which the load is attached. Description. PRECAST CONCRETE LIFTING DESIGN When designing and specifying lifting anchors, it is imperative to ensure that the load is distributed as evenly as possible when deciding on the number of anchors and their specification. Please note: we are unable to ship concrete lids via ground carrier. Handling, Storage of Timber, Precast, Steel, and Concrete Piles cant hooks, peaveys, or pile chains. For specific questions give us a call and talk to one of the Lift-It sales representatives. Hog Slat Precast Concrete Slats have been designed to withstand the normal loading that occurs in a hog house, including animals, penning equipment, and workers. Submit concrete design mix(es) along with associated product data, material test data, mill reports, and certifications for review and approval. Since 1998, we have independently served a variety of heavy civil, industrial, commercial, residential, and private clients. Get an in-depth look at how your company can benefit from our patented lifting hooks through the application videos. With bowl, rectangular, square, and tapered shapes, these concrete fire pits will last for years. Quality certificate ISO9001. Casting : Equipment. Cable penetrations. The mix design shall indicate the design strength, proportions of the constituent materials, type and brand of cement, type and brand of silica fume,. Balconies are produced under factory conditions and are made to suit the client’s requirements and to match floor and finishes depths. Gandhi Nagar, Gujarat. If the option is indicated on the plans, the submittal of a design for a precast reinforced box culvert in lieu of a cast-in-place culvert is permitted. Partial composite action between wythes, user specified from 0% to 100%. WorkSafe WA recently issued a safety alert about the design, manufacture and lifting of precast concrete components following an fatal incident involving a concrete soakwell lid. Concrete: Fc=4,000 psi @28 days 2. Precast concrete manufactures require different lifting and connection devices depending on the intended use and size of the precast piece. The Mechanical Pipe Hook was developed specifically for the utility contractor to provide a safe, efficient pipe handling attachment for horizontal lifting of precast concrete pipe. Precast concrete structures may be used to house equipment, cables, service connections and splices for the distribution system. Accordingly, the analysis procedures described in the following sections focus on the behavior of precast prestressed concrete beams during lifting. The X-Foot Erection Anchor is designed for edge lifting to vertical and shear rotation in thin walled concrete elements. TILT-UP/PRECAST Tilt-up 3 system Offers the Tilt-Up contractor an economical, strong method to lift, handle and place concrete tilt-up wall panels. Seal any lifting holes with non-shrink grout. Founded in 1984, Bishop Lifting Products, Inc. Pipe lifters eliminate the need to dig a hole under the pipe, increasing productivity. At our Vilnius and Kaunas factories we create a wide range of precast concrete products. If the building has precast exterior walls only. This document explains the industry guidelines to establish a safe working environment when using precast and tilt-up concrete in construction. Build safer and more reliable concrete structures - faster. Storage areas shall be smooth and sufficiently rigid to prevent damage due to differential settlement. Lifting design is influenced by the steel / concrete interaction of the specific anchor selected. Precast stone is distinguished from precast concrete using a fine aggregate in the mixture, so the final product approaches the appearance of naturally occurring rock or stone. Our ISO 9001:2008 Quality Assurance Program ensures all processes are controlled and implemented per defined procedures providing the highest level of product quality. We produce all concrete for our precast panels on-site. Precast Balconies. techniques, it was found that the case of a prestressed concrete girder during lifting was the most critical condition when considering catastrophic failures. Joshua Palmer. Flat Lifting Socket is ideal for large, thin precast concrete components such as slabs and shells, on which it's hard to place normal lifting sockets because of the thin thickness of the component. Save time and money with tea cup pipe carriers from Grainger. It is the industry’s exclusive concrete pit range (for SL2 protection) including tamper evident lids and precast reinforced concrete pits. Screed Rails. Unless otherwise specified, precast units shall be lifted using the lifting points provided and supported with the top surface uppermost at all times. Lifting inserts are variously designed metal shapes set in plastic concrete to provide a method of lifting the concrete after it has hardened. Precast concrete’s speed through design, fabrication and erection help meet tight deadlines. More Information Purchase Online. The crane and accessories must obviously be rated for the weight of the. Cable Lift Loop Directory; Contact Us; Subscribe to Our Newsletter; Precast. Comparisons of curved precast bridge superstructures with steel and cast-in-place concrete demon-strate the aesthetic and economic ad-vantages a precast concrete solution of-fers to bridge owners and engineers. Join the longer chain (C) onto the pipe already laid and place the shorter length (B) onto the hook. In those rare instances where settling does occur, precast concrete steps are easily manipulated and reset largely because of their lighter weight. Pipe Picks and Tea Cups for. Our product portfolio of lifting, fixing and anchoring technologies includes the latest and pioneer technology. However, during lifting, a beam is less stable. Many contractors use a lifting frame for lifting indi- vidual panels ; other contractors use chains directly connected to the lift hooks. space and a maximum lifting capacity of 50 tons. Ningbo TONTES Hardware Plastic Manufacturer, Experts in Manufacturing and Exporting concrete precast accessories, metal hardware and 63 more Products. Types of Crane Hooks. Vertical Plate Clamps Provide Material Handling For Hoists and Cranes. Accordingly, the analysis procedures described in the following sections focus on the behavior of precast prestressed concrete beams during lifting. The dimensioning of the rebars is optimised for each construction site. Standard Concrete Spacers; Concrete Spacers With Twin Plastic Clip; Concrete Bars; Lifting and Fixing Systems. A 150-200mm granular foundation should be placed. The cut away portion straddles over the keyway to allow the lifter to rest flat on concrete bin blocks. You are able to build custom sized retaining walls with the easy to build interlocking design. Constructed using the latest polymer, fibre and concrete technologies, these GFRC covers can be easily removed by a single. LIFTING EyE Designed as an attachment link for lifting and transport of precast concrete units in combination with the Lifting Pin Anchor System, the Lifting Eye consists of a round body with a protruding lever arm and a high strength bail. The Keegan Precast Omnia Flooring System is suitable for concrete, steel and masonry building structures. For non-network vaults, a fixed ladder is required when the vault floor exceeds 12 feet 6 inches below finished grade. LIFTING HOOKS SHALL BE CUT OFF FLUSH WITH CONCRETE SURFACE AND ENDS EPOXY COATED AFTER THE PILE IS IN POSITION READY FOR DRIVING. Lifts all heights of gully up to and including 1200mm. All WSDOT designs are based on low relaxation strands using either 0. Concrete Cover Spacers. Safety has to be the number one consideration when lifting a precast or tilt-up concrete element. Today, we are the supplier of choice, thanks to our vast product range and our industry-leading pace in delivering innovative new products to market -- always with our customers' precise needs in mind. Drawings and general provisions of the Contract, including FDOT DIVISION 1 – GENERAL REQUIREMENTS & COVENANTSSpecification Sections, apply to this Section. The range includes: Threaded Lifting Systems; Capstan (Lifting Anchor) Systems; Spread Anchor Systems; Magnetic Formwork Systems; Cast in Channel; We also stock a full range of precast accessories, chemicals and concrete. Ideal for blocks of concrete, stone, rough marble, granite, or any other solid material. Crest Precast Concrete was incorporated in 1964 and dates to 1957 in precast concrete production. Take a look at the Wikipedia description on Lifting Hooks. elebia automatic crane hook with precast concrete lifting attachements. A wide variety of lifting,holding,fixing and separating magnetic tools. Ball is designed to remain upright for easy attachment. Our lifting equipment features quick engagement and release; ensuring a smooth continuous workflow. The DEHA spherical head anchor is cast into the concrete together with a removable recess former, and can be used to carry loads in all directions. Methodology Section 8. No national guidance exists for the design of lifting loops in members that are shallower than 24 inches. Concrete Pipe Handling Lifters designed for handling reinforced precast concrete pipe. The Precast Hog reduces vibrating and placement time by efficiently delivering up to 3 cubic yards of concrete, letting you control the pour. Re: precast design As I explained in addition there is a check for the situation where the supports are at locations of hooks and bending is caused by self-weight. Lifting & Fixing Systems for the Construction Industry NEW CFS Precast Concrete Systems. The installation of the concrete curbing is very straightforward. With over 55 years of experience, we operate three precast concrete plants and manufacture many types of precast concrete products. C-hooks: operation. Our pipe anchors have built-in lift hooks to provide ease of lifting during. 00 each including GST. TELEPHONE 028 6632 6437 FAX 028 6632 4908 From ROI (048) EMAIL [email protected] Structural Failure of Precast-Concrete Span Sets Back Sydney Metro Job lifting up the girder about 700 millimeters from its original position. Built in distortion detectors. In addition to our standard precast concrete cover, barkman trenching also offers a lightweight Glass Fiber Reinforced Concrete (GFRC) cover that is 66% lighter than precast concrete covers of similar size. Hook recesses shall be patched up with 1 : 5 concrete profile barrier. Shawn Yu Unit Manager 303-757-9474 Email Shawn. Industries manufactures several different systems for lifting precast concrete structures. The finished precast concrete parts need to lifted with great care to prevent them from getting damaged. ; Very high containment due to the significant mass of concrete, minimising the risk to traffic using a bridge as they are designed to absorb an vehicle impact rather than deflect the vehicle back into the line of traffic. Design & Construction Technical Guidelines Division 23: HVAC. JENKA Long Inserts are used in applications where sufficient anchoring depth is available. Precast modular block retaining wall blocks under this section shall be cast utilizing a wet-cast concrete mix and exhibit a final handling weight in excess of 450 kg per unit. Precast Beams. 01 Definitions General Provisions 101 through 150. Installing concrete curbing is a fairly easy process, but does entail plenty of heavy lifting. Online or over-the-phone ordering of all your precast and prestress concrete accessories. Handles a wide range of precast concrete pipe. Precast structural concrete. 6m from 1st to 2nd storey, and. ADB’s Safety Engineered product line is 100% manufactured and assembled in the USA. Gandhi Nagar, Gujarat. They may be load bearing, or they may be just decorative to act as a façade. Download the HOLLOWCORE FLOORING TECHNICAL MANUAL published by the National Precast Concrete Association of Australia to see typical details, design information and other information relating to this exciting building product. LIFTING SYSTEMS DESIGN CRITERIA LIFTING SYSTEMS DESIGN CRITERIA We have four main systems available for the lifting of precast concrete units. The use of precast columns and beams makes an ideal framework for hanging precast panels, creating a design that offers fast construction, structural stability and enhanced fire resistance. Technology Ltd Orlimex UK Limited Parex Ltd Patterns and Moulds Ltd PCE Ltd Peikko UK Ltd Pemat UK PERI Ltd Pinnacle Infotech Limited Polarmatic Oy Precast Concrete Structures Ltd Precast Construction Technology Ltd Precast New Zealand Incorporated Precast/Prestressed Concrete Institute. Precast concrete beam launching crane is a bridge crane that places precast concrete beam into precast pier. We employ a variety of fixing methods, including cast-in sockets, curtain walling, curtain wall glazing, and channel inserts, while our design team can produce custom-made panel supports and restraint bracket systems, as. 01 Precast Type 7 Concrete Barrier 6060140103. Precast modular block retaining wall blocks under this section shall be cast utilizing a wet-cast concrete mix and exhibit a final handling weight in excess of 450 kg per unit. The P-50 SL Universal Lifting Eye is not recommended for edge lifting of thin precast con-. Althon headwalls fitted with lifting points and supplied with RD20 threaded lifting loop or RD20 premium swivel lifting eye. concrete: fc’=4,500 pounds per square inch responsibility of the fabricator. Dayton Superior pioneered the concrete accessories industry more than 90 year ago. Lifting calculation method 3. SECTION 03 45 00_PRECAST CONCRETE STRUCTURES. É Lifting Device É Lifting Device PRECAST CONCRETE DECK PANELS #5 hooks @ 6" 9" Standard top mat reinforcing PRECAST CONCRETE DECK PANELS (See Design Drawings). Structural Precast Concrete 03410 - 1 GUIDE SPECIFICATION FOR STRUCTURAL PRECAST CONCRETE SYSTEMS SECTION 03410 PART 1 GENERAL 1. Precast concrete members shall be erected according to preplanned sequence. Lifting Operations - Our Expectations Reference Material: HSF-RM-0039a Introduction The following guide was developed to eliminate, minimise and mitigate fatal risks and hazards, keeping the public safe. Lifting Rings Made in the USA. Introduction 2 The concrete industry Over 35 million tonnes of. Lifting Larger Areas of Concrete. Pre-drilled latch tab. It is then further cured in a controlled setting, transported to the site, and finally put into position. 220 precast concrete lifting hooks products are offered for sale by suppliers on Alibaba. responsible for design of the lifting devices and all necessary precast concrete modifications to accommodate handling stresses in the precast elements. Stormwater Pits A 100% Australian owned business, Frankston Concrete Products is one of Melbourne Victoria's largest suppliers of Storm Water Pits. The depth of the exposure shall be a minimum of. Figure 1—Precast Lintel Design Parameters 8” MIN. • Break concrete around the anchors to expand the recess. The new Caldwell Adjustable Lifting Grab is the variable solution you need on your worksite to handle a wide range of loads. houston, tx central texas plant 21248 old nacogdoches rd. A a contractor will take the device to the work site. To address this shortcoming, the 2003 IDOT Prestressed Concrete Manual provided requirements for lifting loops that were derived from experience and best engineering judgment. The precast prestressed concrete panels shall be picked up only by the lifting devices installed by the Fabricator. Pre-stressed Concrete Construction”. We aim to supplies the highest quality of precast connection, precast lifting system & accessories that suit. CFS can supply all the accessories you need including lifting loops, clutches and recess formers. Free Movement Joints. This paper shows that once the beam is positioned in the structure, buck-ling failure is unlikely to occur. Unique parapet units can be made to specific customer requirements, with in- house mould facilities. Then the head will be special head treatment to improve the mechanical behavior. Chapter 8: Precast Concrete Design 8-3 additional requirements for intermediate precast structural walls relating to wall piers; however, due to the geometry of the walls used in this design example, this concept is not described in the example. For anything precast concrete, Shea Concrete Products is New England’s answer. When used with Peikko's modern design tools, they improve competitiveness and efficiency for your business. and Precast Concrete. The universal head lifting links (UHL) can be locked to the anchor in seconds to enable the unit to be lifted and transported. Lifting Devices PRODUCTS FOR BETTER LIFTING. Pulling / Lifting Irons fabricated from domestic pre-stressing strand adapt to a wide variety of lifting and pulling applications for precast concrete structures. More Information Purchase Online. Seal any lifting holes with non-shrink grout. 704(e) No employee shall be permitted under precast concrete members being lifted or tilted into position except those employees required for the erection of those members. They are manufactured at our facility in Griffin, Georgia of 1/2 inch steel cable meeting ASTM A 416, 7 Wire, 270 Grade. See more ideas about Coping stone, Stone uk and Precast concrete. Each unit joins to the next. Precast concrete beam launching crane is a bridge crane that places precast concrete beam into precast pier. The Mechanical Pipe Hook was developed specifically for the utility contractor to provide a safe, efficient pipe handling attachment for horizontal lifting of precast concrete pipe. Share this page. The hooks are easy to mount and they give a secure grip for the lift. elebia automatic crane hook with precast concrete lifting attachements. More recently expanded polys. China Precast Conrete Lifting Socket Round Elephant Foot Ferrule for Lifting Fixing Anchor Systems, Find details about China Ring Clutch, Lifting Eye from Precast Conrete Lifting Socket Round Elephant Foot Ferrule for Lifting Fixing Anchor Systems - Gaomi Gongji Precise Metal Co. 2L FROM EACH END IS REQUIRED FOR PILES WHERE THE LENGTH EXCEEDS THE VALUES AS SHOWN IN THE LIFTING HOOK SCHEDULE. The PFEIFER Lifting Anchors are integral components of the thread system and provide the necessary back anchoring in the concrete anchoring base for the temporary stresses which occur when lifting or transporting. The SwiftLift system utilises a fully engineered approach combining cast-in lifting anchors, recess formers, and custom-fitting lifting clutches. Capacities range from 1 to 25 tons. 5" wide at the top. After manufacture, on leaving the storage site, these concrete blocks are positioned to build coastal dykes. The aggregates shall be sized, graded. The lifting beam is designed for lifting of precast concrete walls with a one-hook bridge crane. The reasons for selection may be technical, economic, or may be due to the lifting equipment already owned. Rebar: ASTM A-615 Grade 60 3. design parameters. 5 Bracing inserts 37 5. An easy method of placing precast concrete manhole components in the field. The swiftlift lifting eye need to inspect. 6 to 18 ton capacities. mastic gasket, typical all manhole joints fill lifting holes with concrete. openings near the grate edges to function as lifting points for lifting hooks, and 1 ½ x 5 ½” x 1/8” metal plate with NYC DEP logo, shop drawing to be provided. The X-Foot Erection Anchor is designed for edge lifting to vertical and shear rotation in thin walled concrete elements. The major components of the FDPC deck panel deck are highlighted. The J-J Hooks® Concrete Safety Barrier from Australian Road Barriers Pty Ltd is a precast reinforced concrete barrier incorporating the patented J-J Hooks® connection system. Use Grade 60 reinforcing steel. Our standard lagging is 1 ft and 2 ft high, 6 ft long, and 5” thick, with one lift eye for handling. Precast Beams. TILT-UP/PRECAST Tilt-up 3 system Offers the Tilt-Up contractor an economical, strong method to lift, handle and place concrete tilt-up wall panels. The ALP™ Versa Coil™ System is a versatile product designed for both lifting and leveling of precast pavement panels and precast concrete slabs used for roads and highways. Pipe Picks and Tea Cups for. ; Very high containment due to the significant mass of concrete, minimising the risk to traffic using a bridge as they are designed to absorb an vehicle impact rather than deflect the vehicle back into the line of traffic. The merits of Precast Concrete Pavements quickly begin to look like a minefield that needs to be approached cautiously or ignored completely by the designer. To prevent any damage from incompatible lifting tools, only the SVC-approved 2. 3a and Figure 34. The Professional Engineer shall be experienced in precast prestressed concrete transportation and erection and be present for the initial stages of panel loading, unloading and erection. We produce all concrete for our precast panels on-site. Precast piles should be unloaded by lifting them in a. NEW - Adjustable Lifting Grab. Steel lifting hooks shall be cut flush with the surface of the concrete, cleaned to bright metal and coated with two coats of coal tar epoxy. 95 - $1,190. 4 Return to the contents Temporary Works forum Precast concrete - Good practice and common issues in temporary works - TWf2019: 01 1 Introduction 1. Erection design engineering: Lifting. The X-Foot Erection Anchor is designed for edge lifting to vertical and shear rotation in thin walled concrete elements. LinkPro is easily installed, without recess formers, ready for direct connection to standard lifting hooks and shackles. No space of any kind, including those for lifting hooks will be permitted in the finished face. Efficiently model floor slabs, wall panels, beams and columns, and then insert connection details by the batch-load and place reinforcement. Strongbacks. All J-J Hook barriers are a high strength, steel-reinforced, precast concrete safety barrier containing the J-J Hooks positive connection system. 5T, 5T, 10T, 20T. A-LOK Products manufactures the KEY-LOK Lift System with certified lift pins, lift bars and durable lift inserts for Precast Concrete. As the precast concrete staircases are designed and manufactured to individual project specifications & dimensions, we do require additional. These bring a number of benefits, including increased speed of construction; risk mitigation (e.
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