A connection structure at a bridge widening point and its construction technology

By using the connecting structure of pressure-bearing connectors, support connecting rods, support frames and guide steel sheets at the bridge width, the natural bending of the guide steel sheets is used to form an arc surface, which solves the problems of large structural stress and poor continuity at the bridge width, and achieves better bridge deck continuity and quality maintenance.

CN115262367BActive Publication Date: 2025-03-28ZHEJIANG JINE ECOLOGICAL CONSTR CO LTD
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Patent Information

Application Number
CN202210922192.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-02
Publication Date
2025-03-28
Estimated Expiration
2042-08-02

AI Technical Summary

Technical Problem

Due to uneven soil settlement at the bridge width, the settlement speed of the new bridge is faster than that of the old bridge, resulting in greater structural stress and risk of cracking. At the same time, the articulated structure has poor continuity when the horizontal height of the bridge deck is different, which affects the quality of the bridge deck.

Method used

A connecting structure including a pressure-bearing connector, a support connecting rod, a support frame and a guide steel sheet is adopted to limit the deflection direction of the support frame through the natural bending of the guide steel sheet, forming an arc-shaped surface to improve the continuity of the connection.

Benefits of technology

It improves the continuity of the bridge width, reduces structural stress, reduces cracking risks, and maintains the quality of the bridge deck after soil settlement.

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Abstract

The present application relates to a connection structure and construction process for a bridge widening part, including a plurality of connection units and a covering unit, wherein the connection unit includes: a pressure-bearing connection member, connected to a new bridge and an old bridge respectively; a support connection rod, with both ends flexibly connected to the pressure-bearing connection member, and the support connection rod can rotate and slide relative to the pressure-bearing connection member along its connection; a support frame, sleeved on the support connection rod; the pressure-bearing connection members are connected with guide steel sheets extending to the pressure-bearing connection member on the other side, the guide steel sheets are connected to one side of a support frame after passing through at least one support frame, and the support frame is provided with a guide gap for the guide steel sheets to pass through; the covering unit includes: a plurality of fixing members, one end of each fixing member is connected to the upper end surface of a support frame; a water stop strip is connected between adjacent fixing members. The present application has the effect of improving the continuity of the bridge widening part.
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