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    SECTION 9 - PRESTRESSED CONCRETE Part A General Requirements and Materials 9.1 APPLICATION . 9.1.1 General . The specifications of this section are intended for design of prestressed concrete bridge members. Mem­ ... force is transferred from jack to anchorage device. Anchorage …

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    This page is a glossary of Prestressed concrete terms. A actual extension See measured extension. ... to allow manipulation of the anchor block and seating wedges. Often used during lift-off testing. ... Two or more wedges are placed around a strand and compress onto it as they are drawn into conical recesses in the anchorage during jack ...

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    Home Concrete Prestressed Concrete. PRESTRESSING SYSTEMS AND ANCHORAGES. ... For tensioning, a hydraulic jack is used. Wires are gripped at the bulkheads, using split-cone wedges. These wedges are made from tapered conical pins. Flat surface of the pin carries serrations to grip the wire (fig. 1 …

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    Lifting Jack. Mono-Strand Bottle Hydraulic Jack for Group Stretching. FOB Price: US $ 500 / Piece: ... Prestressing Anchorage, Hydraulic Jack, Electronic Pump, Metal Ducts, Pipe-Making Machine, Wedges, Rock Anchor, High-Tension Wire Anchor, Anchor, Prestressing Equipments

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    liuzhou xuanqiao prestressing forcethe basic information about liuzhou xuanqiao prestressing force machinery push, lifting jack, zb4/500 electric pump, prestressed concrete structure, bridge anchorage suppliers and bridgebridge anchorage product listings on electric hydraulic pump with ultrahigh pressure(zb type) model / specifications zb4 500 ...

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    Anchor: means a system, used to transfer tensile loads to soil or rock, which includes the prestressing steel, anchorage, corrosion protection, sheathings, spacers, centralizers and grout. ... jack, by lifting the anchor head off the bearing plate. July 2004 Pg. 2 of 22 SSP999S26 . ... TEST ANCHORS – Item No ...

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    China Prestressed Post Tensioning Flat Slab Anchorage, Find details about China Flat Slab Anchorage, Prestressing Slab Anchorage from Prestressed Post Tensioning Flat Slab Anchorage - Tianjin Sunwin Prestressed Technique Co., Ltd.

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    CE-marked post-tensioning systems installed by … the strands are anchored in a common anchorage device … prestressed concrete has become the most widely … China Prestressed Post Tensioning Flat Slab Anchorage …

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    Stressing and grouting; ... tension load is hydraulically transferred. The domed anchor nut is tightened by an internal wrench. Special stressing jacks are used for 47 WR bars. ... stressing is recommended from both sides. The prestressing load can be increased or lowered by reinstalling the jack at any given time until the tendon is fully ...

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    Details about YDC Prestressed concrete hydraulic jack 1. Usage: It is mached with prestressed anchorage widely used in the construction of bridge and buildings, railway and subway, water conservancy and hydropower engineering.

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    Post-Tensioning Terminology. Mohammed Zaid. ... a device that houses the wedges and transfers the prestressing force to the concrete. Anchorage assembly - A mechanical device consisting of all components required to transfer the posttensioning force from the prestressing ... consisting of a hydraulic jack and gauge(s) calibrated as a unit, and ...

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    For testing of prestressing steel, anchorage assemblies, couplings and grout, refer to the relevant section of the Standard Specification. 9.3.1 Proprietary Prestressing System The contractor’s system should meet the following requirements: ... hydraulic jack is generally a form of load cell, once its internal losses such as friction are

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    A steel corrugated flat duct is pressed into shape from a steel corrugated round duct and it is generally used for slab anchorage ... Tagged With: PC Strand, Post Tensioning, Prestressed Concrete, Prestressing, Slab Anchorage, Stressing Equipment, ... Lifting Jack…

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    Post-tensioned concrete Duct cast into ... Steel spirals placed duct to resist local forces Other steel required for splitting if multiple tendons are used Heavy jacks in confined spaces Tendons curved - in elevation - and in plan. 2 Tendon spacing adjusted in slabs ... Prestressing anchorage in web. 4

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    It eliminates the requirement for heavy lifting crane and machinery. It also reduces the total manpower and on-deck carbon footprint. ... that explains what we want to achieve in prestressed concrete structures, ... Post Tensioning, Prestressed Concrete, Prestressing, Slab Anchorage, Stressing Jack. Anchor Head, Bearing Plate & Wedge Shipment ...

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    Prestressed concrete is used in a wide range of building and civil structures where its improved performance can allow longer spans, reduced structural thicknesses, and material savings compared to simple reinforced concrete. ... Anchorage protection In all post-tensioned installations, protection of the end-anchorages against corrosion is ...

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    View reliable Lifting Jack manufacturers on Made-in-China.com. This category presents Hydraulic Jack, Jack, from China Lifting Jack suppliers to global buyers., page 4 ... Details about YDC Prestressed concrete hydraulic jack 1. Usage: It is mached with prestressed anchorage widely used in the construction of bridge and buildings, railway And ...

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    ExtERNAL PREstREssING PAGE 38 CAbLE stAY sYstEMs PAGE 40 INCREMENtAL LAuNCHING sYstEMs PAGE 44 HEAVY LIFtING sYstEMs PAGE 45 LoAd HANdLING sYstEMs PAGE 46. Data contained herein is subject to change without notice. Use of information and details presented in this document should ... • Less reinforcement in the anchorage zone resulting in time ...

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    China Prestressing Concrete Post-Tensioning PC Strand Pulling Machine, Find details about China Multi-Strand Jack, Post Tension Jack from Prestressing Concrete Post-Tensioning PC Strand Pulling Machine - Kaifeng Zhongqiao Prestressed Equipment Co., Ltd.

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    DYWIDAG Prestressing Systems using Bars DSI's small and lightweight jacks are easy to operate and facilitate the stressing operation. Heavy lifting ai... Stressing and grouting - DSI Civil

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    prestress jack. QYC front-end fixed jacks have internal re-usable anchor which can automatically clamp and loosen the wedge, they are mainly used for BFM15 and BFM13- type various single tensioning with bonded and unbounded.

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    VSL CONSTRUCTION SYSTEMS Post-tensioning Stay Cables Heavy Lifting Bridge Erection Forming systems Repair and ... Heavy lifting 24 Bridge erection 26 Forming systems 28 Repair, ... This compact and easy to handle anchorage system allows prestressing force to be transferred through two flanges.

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    VSL Dead-End Anchorage: VSL Type P Compression fittings Grout tube Duct This type of anchorage is used where the prestressing force has to be transferred to …

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    – Socket swaged to anchorage; ready to use; safe and quick – Available in12 – 52mm diameters, giving load capacity of 500 – 12,500 kg – Use with Threaded lifting loop or Swivel lifting eye ... precision lifting, such as those used in manufacturing plants. On 6 …

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    Design of Mechanical Hydraulic Jack K.Sainath, MohdSalahuddinbMohdJibranBaig,MdAzam Ali Farooky, Mohammed Siddique Ahmed,MohdRiyazUddin, Faraz Ur Rehman Azhar, Md ... (1.5 to 5 ton jacksare frequently used to lift cars), bottle jacks have other uses as well. In the medical industry they can be used in hydraulic stretchers and patient lifts. In ...

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    The prestressing bar for civil works Design, Build, Maintain. C III 3 - 02/13 ... • Heavy lifting ... Jacks should be used in conjunction with Freyssinet hydraulic pumps, with high pressure and a low flow rate to allow a progressive tensioning of the bar. Space must be allocated around the anchorage …

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