Large-span steel structure arch bridge and construction method

A construction method and steel structure technology, which is applied to arch bridges, bridges, bridge parts, etc., can solve the problems of lack of aesthetic feeling, large ups and downs of the abutment line, and easy quality defects caused by the stress on the abutment, so as to increase the overall stability , increase smoothness and beauty, optimize the effect of overall stability

Pending Publication Date: 2021-06-01
ROAD & BRIDGE INT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] (1) With the increase of the span of the arch bridge, the load on the abutment is getting bigger and bigger, and the transverse horizontal component force generated by the arch rib can only be offset by the abutment, and the force on th

Method used

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  • Large-span steel structure arch bridge and construction method
  • Large-span steel structure arch bridge and construction method
  • Large-span steel structure arch bridge and construction method

Examples

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[0035]Example 1

[0036]SeeFigure 1-3The present application provides a large span steel structural arch bridge, including a bridge surface 12, a side arch rib 1, an intermediate rib 2, and a pug 8 is provided on both sides of the bridge surface 12, the intermediate arch rib 2 The edge arch rib 1 is located on both sides of the bridge surface 12, and both ends of the intermediate rib 2 are connected to the side arch rib 1, and the other end of the side arch rib 1 is connected to the pier 8. The intermediate arch rib 2 is provided with an intermediate triangular region, and the side rib 1 is provided with a side triangular region with a pir-bearing 8 connection.

[0037]In the present embodiment, the intermediate triangle region includes an intermediate upper limpet arch of the arch 6 of the edge arch rib 1, the arch of the intermediate arch rib 2, the intermediate upper limb arch 3, and the arch 6 An intermediate column 11 is also attached to the intermediate column 11 between the interme...

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Abstract

The invention discloses a large-span steel structure arch bridge and a construction method. The large-span steel structure arch bridge comprises a bridge floor, side arch ribs and a middle arch rib, abutments are arranged on the two sides of the lower portion of the bridge floor, the middle arch rib and the side arch ribs are located on the two sides of the bridge floor, the two ends of the middle arch rib are connected with the side arch ribs, the other ends of the side arch ribs are connected with the abutments, middle triangular area structures are arranged at the joints of the middle arch rib and the side arch ribs, and side triangular area structures are arranged at the joints of the side arch ribs and the abutments. The triangular area structures are arranged between the arch ribs and the skewback, the adjacent arch ribs can be connected, the overall stability is improved, part of horizontal component force can be offset through the arch ribs, component force in the vertical direction is added to the skewback, and the overall stability of the skewback is further optimized. And the two adjacent arch ribs with large fluctuation are connected through side upper limb arches and a middle upper limb arch, so that the smoothness and aesthetic feeling of the curve are improved.

Description

technical field [0001] The application relates to the field of highway engineering bridges, in particular to a long-span steel structure arch bridge. Background technique [0002] With the continuous development of arch bridge technology in China, in order to provide the spanning capacity of steel structure arch bridges, the span and number of arch bridges are gradually increasing. In the traditional mid-supporting steel structure arch bridge structure, the force of the arch rib is offset and transmitted through the abutment structure, and the disadvantages are: [0003] (1) With the increase of the span of the arch bridge, the load on the abutment is getting bigger and bigger, and the transverse horizontal component force generated by the arch rib can only be offset by the abutment, and the force on the abutment is too large to cause quality damage. [0004] (2) Each arch rib project is independent, and the overall stability is poor. [0005] (3) The linear shape of the a...

Claims

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Application Information

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IPC IPC(8): E01D4/00E01D19/00E01D21/00
CPCE01D4/00E01D19/00E01D21/00
Inventor 田连民渠凯朱庆庆侯兆隆朱丹丹
Owner ROAD & BRIDGE INT
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