Combined supporting structure for transverse shock resistance of three-span bridge

A technology of support structure and support mechanism, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve problems such as poor lateral seismic performance, and achieve reasonable and reliable structural design, improved protection effect, and stable connection.

Active Publication Date: 2020-09-25
SHANXI TRAFFIC PLANNING PROSPECTING & DESIGN INST
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  • Abstract
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  • Claims
  • 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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  • Combined supporting structure for transverse shock resistance of three-span bridge
  • Combined supporting structure for transverse shock resistance of three-span bridge
  • Combined supporting structure for transverse shock resistance of three-span bridge

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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

The invention particularly relates to a combined supporting structure for transverse shock resistance of a three-span bridge and aims to solve the problem that an existing bridge supporting structureis poor in transverse shock resistance is solved. According to the combined supporting structure for the transverse shock resistance of the three-span bridge, two limiting blocking tables are integrally arranged on the edge of the upper surface of a bent cap; a bearing table is horizontally arranged between the two limiting stop tables; a plurality of sliding grooves are formed in the bent cap; aplurality of sliding seats are arranged on the lower surface of the bearing table; a plurality of hydraulic dampers are connected between the bearing table and the two limiting blocking tables; a plurality of limiting columns are connected between two connecting lugs; pier caps sleeve the limiting columns in a sliding mode; two upper connecting frames are fixedly connected to the two connecting lugs; and two shock absorbers are horizontally connected to the bottoms of the two upper connecting frames respectively. Through the multiple-transverse shock absorption supporting system, the transverse shock absorption effect of the bridge is effectively improved, and transverse buffer protection effects on structures such as a bridge body and bridge piers are improved.

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 Applications(China)
IPC IPC(8): E01D19/00E01D19/02E04B1/98E04H9/02
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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