Special catwalk hung with multilayer horizontal inhaul cables
A horizontal, catwalk technology, applied in the direction of bridge construction, erection/assembly of bridges, bridge parts, etc., can solve the problem of wire bundle twisting, tensioning difficulties, and high cost of hard traction tension rods (generally, each one needs hundreds of thousands to tens of thousands to Hundreds of thousands of yuan and other problems, to achieve the effect of convenient dismantling, convenient construction, and reducing the difficulty of hanging
Inactive Publication Date: 2010-08-11
CHINA MAJOR BRIDGE ENG
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Problems solved by technology
This hanging method generally has the following problems: (1) the capping cable force of the horizontal cable is relatively large, and a long hard traction tension rod needs to be set, which is not only difficult to stretch, but also costs a lot for the hard traction tension rod (generally every (2) because each layer of cables is in the same plane in the vertical direction, when the cables are deployed before the latter layer of cables are hung, the tensioned cables of the previous layer will be affected. The impact of the steel wire bundle is prone to twisting
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[0023] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the advantages of the present invention will become clearer and easier to understand.
[0024] Referring to the accompanying drawings, it can be known that the hanging method of multilayer horizontal stay cables of the present invention comprises the following steps: 1. a cable-laying platform is set on the beam surface 1, the anchor end of the first layer of horizontal stay cables 203A is installed in place, and the Traction and hard traction Put the anchor cap on the tension end of the cable (one end of the cable is the anchor end, and the other end is the tension end), and stretch it in place; ②.Set it on the upper end of the first horizontal cable 203A The catwalk 100 for placing the second layer of horizontal stay cables 203B, the second...
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The invention relates to a special catwalk hung with multilayer horizontal inhaul cables, comprising haff jigs (101), a cross beam (103), railings (105) and cable releasing slideways (102), wherein the haff jigs (101) fix the horizontal inhaul cables and are fixed at the lower end of the cross beam (103); the railings (105) are vertically fixed on both ends of the cross beam (103); and the cable releasing slideways (102) are fixed in the middle of the cross beam (103). The special catwalk has simple structure and convenient installation, use and disassembly; a hanging method of the special catwalk overcomes the defects of larger capped cable force of the horizontal inhaul cables and high cost of the traditional method, easy steel wire bundle knotting, and the like; and in addition, the hanging method of the multilayer horizontal inhaul cables has the advantages of convenient construction, safety, reliability and low cost.
Description
technical field [0001] The invention relates to a special catwalk for hanging multi-layer horizontal stay cables in bridge engineering. Background technique [0002] In the construction of long-span continuous steel truss arches, multi-layer high-strength steel wire cables and horizontal cables are often used to assist the erection of double-cantilever steel beams in the middle pier to control the stress and deflection of the steel beams. The anchored end and the tensioned end of the horizontal stay cable pass through the anchor box respectively, and are pinned to the swallow plate protruding from the steel beam node, without the use of sling tower support (if the tower is used, the cost is high, generally Large-scale towers need more than 20 million yuan, and medium-sized towers also need more than 10 million yuan). [0003] For the hanging of multi-layer horizontal stay cables, the same method as that of stay cables is usually used, that is, the stay cables are deployed o...
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Login to View More IPC IPC(8): E01D21/00E01D19/16
Inventor 秦顺全李军堂涂满明毛伟琦张爱花周超舟王东辉张瑞霞覃勇刚
Owner CHINA MAJOR BRIDGE ENG