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Beam-arch combined rigid frame bridge and construction method of piers thereof

A beam-arch combination and construction method technology, applied in the direction of arch bridges, bridges, bridge parts, etc., can solve the problems affecting the normal operation of the bridge, web cracking, etc., to overcome mid-span deflection and web cracking, beautiful appearance, and structural Definite force effect

Inactive Publication Date: 2020-10-09
ZHONGJIAN SUIDAO CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For these long-span continuous rigid-frame bridges (especially long-span continuous rigid-frame bridges with a length of 250m to 350m), there are common diseases such as mid-span deflection and web cracking, which require regular maintenance and affect the normal operation of the bridge.

Method used

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  • Beam-arch combined rigid frame bridge and construction method of piers thereof
  • Beam-arch combined rigid frame bridge and construction method of piers thereof
  • Beam-arch combined rigid frame bridge and construction method of piers thereof

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] The embodiment of the invention discloses a beam-arch composite rigid frame bridge.

[0044] figure 1 It is a structural schematic diagram of a beam-arch composite rigid frame bridge according to an embodiment of the present invention, combining figure 1 , the rigid frame bridge includes a pile foundation 1, a cap 2, a bridge pier 3, a beam body 4 and a lower chord support beam 5.

[0045] combine figure 1 , the cap 2 of the embodiment of the present...

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Abstract

The invention belongs to the technical field of bridge construction, and particularly relates to a beam-arch combined rigid frame bridge. The rigid frame bridge comprises pile foundations; a bearing platform which is poured on the pile foundation; bridge piers which are arranged corresponding to the bearing platforms, the multiple bridge piers are arranged in the bridge direction at intervals, andthe bridge piers are arranged on the corresponding bearing platforms; a beam body which is supported by a plurality of bridge piers; lower chord supporting beams, one ends of which are connected to the bridge piers, the other ends are connected to the bottom of the beam body, the lower chord supporting beams are located between every two adjacent bridge piers, and the bottom edge lines of the lower chord supporting beams change according to a 2.2-time parabola rule. The combined structure system is clear in structural stress and attractive and novel in appearance.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a beam-arch composite rigid frame bridge and a construction method for its pier. Background technique [0002] In mountainous highways and mountainous cities, in order to cross valleys and rivers, prestressed concrete continuous rigid frame bridges are mostly used. This type of steel structure bridge integrates the pier body and the main girder into one body, and the pier body and the main girder form a rigid structure. The frame bears the load of the superstructure. On the one hand, the main girder bears a reasonable force, and on the other hand, the pier body fully exerts its potential structurally. [0003] The continuous rigid frame bridge is a structural system commonly used in the construction of long-span bridges, and its common span is between 100 and 300 meters. For these long-span continuous rigid-frame bridges (especially long-span continuous r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/02E01D4/00
CPCE01D21/00E01D19/02E01D4/00
Inventor 杨培诚王蓬石晓飞张斌张彪李涛
Owner ZHONGJIAN SUIDAO CONSTR CO LTD
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