A Composite Support Structure Used for Lateral Seismic Resistance of Three-span Bridges

A technology of supporting structure and supporting mechanism, applied in bridges, bridge construction, bridge parts, etc., can solve the problem of poor lateral seismic performance, and achieve the effect of reasonable and reliable structural design, firm structure and stable connection

Active Publication Date: 2021-09-24
SHANXI TRAFFIC PLANNING PROSPECTING & DESIGN INST
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of poor lateral seismic performance of existing bridge support structures, the present invention provides a composite support structure for lateral seismic resistance of three-span bridges

Method used

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  • A Composite Support Structure Used for Lateral Seismic Resistance of Three-span Bridges
  • A Composite Support Structure Used for Lateral Seismic Resistance of Three-span Bridges
  • A Composite Support Structure Used for Lateral Seismic Resistance of Three-span Bridges

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Embodiment Construction

[0024] A combined support structure for lateral seismic resistance of a three-span bridge, comprising a bridge pier, a cover beam 1 and a pier cap 2 arranged between them; the bridge pier includes a foundation 3 and two vertically arranged on the foundation 3 and distributed left and right The pier columns 4, the tops of the two pier columns 4 are fixed as a whole; the upper surface edge of the cover beam 1 is integrally provided with two limit stoppers 5 placed longitudinally and parallel to the left and right; two limit stoppers 5 is horizontally provided with a bearing platform 6; a first support mechanism is provided between the cover beam 1 and the bearing platform 6; a second support mechanism is provided between the cover beam 1 and the pier cap 2;

[0025] The first supporting mechanism includes several sliding grooves 701 opened on the upper surface of the cover beam 1 and distributed parallel to the front and back; the lower surface of the carrying platform 6 is provi...

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Abstract

Specifically, the invention is a combined supporting structure used for lateral seismic resistance of a three-span bridge, which solves the problem of poor lateral seismic performance of existing bridge supporting structures. A combined support structure for three-span bridges for lateral seismic resistance. The upper surface of the cover beam is integrally provided with two limit stoppers; a bearing platform is horizontally arranged between the two limit stoppers; Several chutes; several sliding seats are provided on the lower surface of the bearing platform; several hydraulic dampers are connected between the bearing platform and the two limit stops; several limit columns are connected between the two connecting ears , the pier cap is slidably set on each limit column, two upper connecting frames are fixedly connected to the two connecting ears, and two shock absorbers are horizontally connected to the bottoms of the two upper connecting frames. The invention effectively improves the transverse damping effect of the bridge through the multiple transverse shock absorbing support system, and improves the transverse buffer protection effect on the bridge body, bridge piers and other structures.

Description

technical field [0001] The invention relates to a support structure for bridge engineering, in particular to a combined support structure for lateral seismic resistance of a three-span bridge. Background technique [0002] Bridges are buildings erected across mountains, rivers, lakes, seas, unfavorable geology, or to meet other traffic needs to make traffic more convenient; bridge construction needs to consider the seismic performance of bridges, especially bridges built in earthquake areas. [0003] However, practice has shown that the longitudinal seismic performance is more considered in bridge construction. The existing bridge support structure has a relatively simple structure to deal with bridge lateral vibration, resulting in poor lateral seismic performance. When lateral vibration occurs, it is easy to damage the bridge body and bridge support. Damage to the structure affects the normal use of the bridge. Contents of the invention [0004] In order to solve the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98E01D19/00E01D19/02E04H9/02
CPCE01D19/00E01D19/02E04B1/98E04H9/021
Inventor 夏志强王枫王林飞
Owner SHANXI TRAFFIC PLANNING PROSPECTING & DESIGN INST
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