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Prefabricated anti-fall beam structure, anti-fall beam device and bridge

An anti-drop beam and assembled technology, applied in the field of anti-drop beam, can solve the problems of brittle concrete block brittle shear failure, bridge falling beam damage, block collision, etc., to reduce construction costs, good load bearing capacity, The effect of structural stabilization

Active Publication Date: 2021-04-20
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this measure is that the beam body will collide with the block under the action of an earthquake. When an earthquake with high intensity strikes, the brittle concrete block is prone to failure due to brittle shear failure, resulting in bridge beam failure.

Method used

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  • Prefabricated anti-fall beam structure, anti-fall beam device and bridge
  • Prefabricated anti-fall beam structure, anti-fall beam device and bridge
  • Prefabricated anti-fall beam structure, anti-fall beam device and bridge

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Such as Figure 1-Figure 4 , the embodiment of the present invention provides an assembled anti-fall beam structure, including an anchor plate 1, a mounting plate 2 and a support plate 3, the mounting plate 2 is vertically connected to one of the surface of the anchor plate 1, the The mounting plate 2 has a first mounting plate surface and a second mounting plate surface oppositely arranged, and the stopper 7 for supporting the beam body 14 when the bridge beam body 14 is displaced is installed on the first mounting plate surface, so The support plate 3 is connected to the second mounting plate surface and extends to the side of the second mounting plate surface away from the first mounting plate surface to connect with the anchor plate 1, the anchor plate 1, The mounting plate 2 and the supporting plate 3 are assembled into a tripod 15 with an integral structure, and a plurality of first bolting holes 11 for bolting to the top of the bridge abutment 13 are opened on th...

Embodiment 2

[0032] Such as Figure 4 , the embodiment of the present invention relates to an anti-fall beam device, including the assembled anti-fall beam structure provided in the first embodiment above, and a plurality of anchor bolts 12 are buried at the top of the corresponding bridge abutment 13, and the anchor bolts The number of 12 is the same as the number of the first bolting holes 11 and they are bolted in one-to-one correspondence. The above-mentioned anchor bolts 12 are pre-embedded in the concrete structure at the top of the corresponding abutment 13 .

Embodiment 3

[0034] The embodiment of the present invention relates to a bridge, including a plurality of girders 14 sequentially arranged along the bridge direction, each end of each girder 14 is equipped with a group of anti-fall beam units, and each of the anti-fall beam units includes The two anti-fall beam devices arranged on both sides of the corresponding beam body 14 in the bridge direction, each of the anti-fall beam devices adopts the anti-fall beam device provided in the second embodiment above. The anti-fall beam device provided in this embodiment can be applied to the anti-fall beam design of beam bodies 14 such as T-beams and box girders, and has wide applicability.

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Abstract

The invention relates to an assembled anti-fall beam structure, an anti-fall beam device using the assembled anti-fall beam structure and a bridge using the anti-fall beam device. The anti-fall beam structure includes an anchor plate, a mounting plate and a support plate, The mounting plate is vertically connected to the anchoring plate. The mounting plate is equipped with a stopper for limiting the displacement of the bridge girder. The anchoring plate, the mounting plate and the support plate are assembled into a tripod with an integrated structure. The anchoring plate is bolted to the top of the bridge pier. The anchor plate, the installation plate and the support plate are assembled into a tripod with an integrated structure, which has a stable structure and good load bearing capacity, which can meet the mechanical performance requirements required by the anti-fall beam function of this anti-fall beam structure, and effectively guarantee The safety and reliability of the anti-fall beam structure; using the principle of prefabricated bolting, the prefabricated installation of the anti-fall beam structure can be realized directly by bolting the anchor plate and the pier at the construction site, which is convenient and fast to operate and effectively improves Improve construction efficiency, shorten construction period and reduce construction cost.

Description

technical field [0001] The invention belongs to the technical field of anti-fall beams, and in particular relates to an assembled anti-fall beam structure, an anti-fall beam device adopting the assembled anti-fall beam structure and a bridge adopting the anti-fall beam device. Background technique [0002] Under the action of earthquake force, bridges in earthquake areas often cause excessive relative displacement between the upper and lower structures of the bridge due to the weak connection and poor integrity of the upper and lower structures of the bridge, resulting in bridge damage. In order to ensure the safety of the bridge, it is often necessary to take certain measures to limit the movement of the beam part in the earthquake, and to ensure that the beam part does not produce excessive displacement or disasters such as falling beams. The existing anti-fall beam measures mainly set brittle concrete stoppers at a certain distance from the beam body through structural me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/00E01D101/30E01D101/10
CPCE01D19/00E01D2101/10E01D2101/30
Inventor 刘天培蔡建业余兴冯印曹忠强郑利彬王伟立张会李国忠唐乐
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP