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A jacking system and a deviation correction method for the closing section of a continuous rigid frame bridge

A technology for rigid-frame bridges and closing sections, which is applied in bridges, bridge construction, erection/assembly of bridges, etc., and can solve problems such as lack of a set of deviation correction and adjustment methods

Inactive Publication Date: 2017-11-17
XIAN HIGHWAY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But for the above-mentioned second and third deviations, there is no corresponding correction and adjustment method

Method used

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  • A jacking system and a deviation correction method for the closing section of a continuous rigid frame bridge
  • A jacking system and a deviation correction method for the closing section of a continuous rigid frame bridge
  • A jacking system and a deviation correction method for the closing section of a continuous rigid frame bridge

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Experimental program
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Effect test

Embodiment 2

[0413] As shown in Figure 8, the difference between the pushing system used in this embodiment and Embodiment 1 is that the rigid support is a second support, and the second support is composed of two symmetrically arranged support angles. 5-2-2, the two supporting angle steels 5-2-2 are welded and fixed on the lower supporting steel plate 8-1.

[0414] In this embodiment, the structure and connection relationship of the remaining parts of the pushing system used are the same as those in Embodiment 1.

[0415] In this embodiment, the method of pushing and rectifying deviation adopted is the same as that in Embodiment 1.

Embodiment 3

[0417] Such as Figure 10 As shown, in this embodiment, the difference between the pushing system used in Embodiment 1 is that the rigid support is a third support, and the third support is composed of two symmetrically arranged vertical steel plates 5 - 2-3 and an upper supporting steel plate 5-2-4 supported on the two vertical steel plates 5-2-3. Moreover, the two vertical steel plates 5-2-3 are welded and fixed on the lower supporting steel plate 5-1. The upper supporting steel plate 5-2-4 is a rectangular steel plate and its size is the same as that of the lower supporting steel plate 5-1, and the upper supporting steel plate 5-2-4 and the two vertical steel plates 5-2-3 All are fixedly connected by welding.

[0418] In this embodiment, the structure and connection relationship of the rest of the pushing system used are the same as those in Embodiment 1.

[0419] In this embodiment, the method of pushing and rectifying deviation adopted is the same as that in Embodiment...

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Abstract

The invention discloses a jacking system for a closure section of a continuous rigid frame bridge and a jacking deviation rectifying method. The jacking system is composed of a top plate jacking system and a bottom plate jacking system. The top plate jacking system comprises two sets of top plate embedded bases arranged at the ends of two cantilever beam sections of the continuous rigid frame bridge correspondingly, top plate rigid supporting structures supported between the two sets of top plate embedded bases and a top plate jacking mechanism. The bottom plate jacking system comprises two sets of bottom plate embedded bases arranged at the ends of the two cantilever beam sections correspondingly, bottom plate rigid supporting structures supported between the two sets of bottom plate embedded bases and a bottom plate jacking mechanism. The jacking deviation rectifying method comprises the steps of (1) measurement of position deviation of the cantilever beam sections, (2) adjustment of elevation deviation of the cantilever beam sections, (3) deviation rectifying adjustment and (4) longitudinal jacking. The jacking system is simple in structure, reasonable in design, easy and convenient to construct and good in using effect, the jacking deviation rectifying process of the cantilever beam sections on the two sides of the closure section can be completed easily, conveniently and rapidly, and the rectifying requirements of lateral deviation and reverse deviation of the cantilever beam sections can be met.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a jacking system and a jacking correction method for the closing section of a continuous rigid frame bridge. Background technique [0002] The continuous rigid frame bridge is a continuous girder bridge with piers and girders consolidated. The multi-span rigid frame bridge and the multi-span continuous-rigid frame bridge whose main span is divided into continuous girders all adopt prestressed concrete structure. There are more than two main piers. The pier-beam consolidation system has the advantages of T-shaped rigid frame bridges and continuous girder bridges. Closing section is the key link in the construction of continuous rigid frame bridge. In order to reduce the adverse effects of concrete shrinkage and creep and temperature changes on the bridge structure during the operation period, during the construction of the closing section of continuous rigi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/06E01D21/10
CPCE01D21/06E01D21/10
Inventor 袁卓亚蒲广宁王卫山王旭杜进生龚晓晖石雄伟宋彬冯威李晓娟
Owner XIAN HIGHWAY INST
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