Multi-layer low-altitude anti-sideslip supporting cushion box and using method thereof

A technology of supporting box and cushion box, applied in the direction of erecting/assembling bridges, bridges, buildings, etc., can solve the problems affecting the prestressing and tensioning construction of the ends of continuous steel arch bridges

Inactive Publication Date: 2021-06-08
CHINA RAILWAY NO 5 ENG GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The 100th span box girder of a super-large bridge is located at the adjacent span of the cast-in-place continuous steel arch. Due to the six-month construction period conflict between the continuous steel arch bridge closing construction plan and the simply supported box girder ballastless track bed construction plan, the continuous steel arch bridge has not been completed. Before completion, the box girder near the span must be erected to meet the construction of ballastless bed on the simply supported box girder deck; but the normal erection of the box girder near the span will affect the prestressed tension construction at the end of the continuous steel arch bridge

Method used

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  • Multi-layer low-altitude anti-sideslip supporting cushion box and using method thereof
  • Multi-layer low-altitude anti-sideslip supporting cushion box and using method thereof

Examples

Experimental program
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Embodiment 1

[0019] Embodiment 1: as Figure 1~Figure 2 As shown, a multi-layer low-altitude anti-skid support mat box includes a support mat box 1, a plurality of support mat boxes 1 are stacked, and two adjacent support mat boxes 1 are detachably connected.

[0020] Preferably, the above-mentioned support cushion box 1 includes a panel 1-1, a partition 1-2 and a bottom plate 1-3, and the panel 1-1 and the bottom plate 1-3 pass through a plurality of vertical (3) partitions 1- 2 Fixed connection, the structure has high rigidity and strength, good support stability, and the hollow structure is light in weight, which is more conducive to bolt connection and reduces the weight of the cushion box itself, which is convenient for construction operations in limited site space. At the same time, it needs to cooperate with the top beam oil top Quantitative jacking (lowering) cross switching operations are performed to lower the adjacent span box girder to the design elevation.

[0021] Preferably...

Embodiment 2

[0026] Embodiment 2: A method of using a multi-layer low-altitude anti-sideslip support pad box, the method is: through the precision-rolled rebar reserved in the pad stone and the reserved hole in the lower part of the support pad box 1, anchor the support pad The box is consolidated with the pier pad stone; the support pad box 1 is superimposed through the occlusal and close fit of the anti-skid structure, and at the same time, the layers of the support pad box 1 are fastened by bolts 3 to realize the addition and subtraction of the support stroke of the low-altitude anti-side slip pad box; The reserved hole in the upper part of the cushion box 1 is connected with the embedded plate of the bottom support of the supporting box girder through bolts, so as to realize the consolidation of the supporting cushion box and the storage beam body, and solve the problem that the cast-in-place steel arch structure is not completed, which affects the ballastless of simply supported box gir...

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Abstract

The invention discloses a multi-layer low-altitude anti-sideslip supporting cushion box and a using method thereof, wherein the multi-layer low-altitude anti-sideslip supporting cushion box comprises a plurality of supporting cushion box bodies which are stacked, and every two adjacent supporting cushion boxes are detachably connected. According to the multi-layer stacked supporting cushion box, the supporting height of the cushion box can be increased according to needs, the problem that the closure period of a cast-in-place steel arch bridge conflicts with the construction period of a ballastless track bed of a simply-supported box girder bridge deck is solved through a temporary span box girder erected by the multi-layer low-altitude anti-sideslip supporting cushion box in advance, and the later-stage tensioning operation of the end of the cast-in-place steel arch bridge is not affected; a beam body can be jacked (descended) directionally in a limited working space by increasing (decreasing) the number of layers of the low-altitude anti-sideslip cushion box, working is facilitated, the self weight of the cushion box is reduced through the supporting cushion box of the cavity structure, and construction operation in the limited field space is facilitated; and meanwhile, a top beam oil jack needs to be matched for carrying out quantitative jacking (descending) cross switching operation, so that the temporary-span box girder descends to the designed elevation.

Description

technical field [0001] The invention belongs to the technical field of spanning box girder erection equipment, and relates to a multi-layer low-altitude anti-sideslip support pad box and a use method thereof. Background technique [0002] The 100th span box girder of a super-large bridge is located at the adjacent span of the cast-in-place continuous steel arch. Due to the six-month construction period conflict between the continuous steel arch bridge closing construction plan and the simply supported box girder ballastless track bed construction plan, the continuous steel arch bridge has not been completed. Before the completion, the box girder near the span must be erected to meet the construction of ballastless ballast bed on the simply supported box girder deck; but the normal erection of the box girder near the span will affect the prestressed tension construction at the end of the continuous steel arch bridge. Contents of the invention [0003] The technical problem ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D2/04
CPCE01D21/00E01D2/04
Inventor 吴琪龚楠富李勇冯黎新胡中波刘顺云李丁王成桩肖虹
Owner CHINA RAILWAY NO 5 ENG GRP
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