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Arch bridge dismantling method

A technology for arch bridges and arch ribs, which is applied in the field of demolition of arch bridges, and can solve problems such as lack of one-time demolition of bridges

Inactive Publication Date: 2021-07-06
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For large bridges, lack of machinery to dismantle the bridge in one go

Method used

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  • Arch bridge dismantling method

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Experimental program
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Embodiment

[0031] Such as Figure 1-Figure 7 Shown, a kind of arch bridge removal method of the present invention comprises the following steps:

[0032] Step 1. Build auxiliary towers 1 on both sides of the arch bridge. The auxiliary towers 1 are made of materials that can provide sufficient support for the demolition of the arch bridge, such as concrete structures and steel structures; The type arch bridge can be a concrete arch bridge or a steel arch bridge. ;

[0033] Step 2, install the anchor point on the arch rib 7, connect the arch rib 7 with the auxiliary tower 1 by using the auxiliary cable 10, and stretch the cable 10, and then remove the bridge deck system 2;

[0034] Step 3, completing the cutting and dismantling of the bridge deck 3;

[0035] Step 4, complete the cutting and removal of the beam 4;

[0036] Step 5, remove the longitudinal beam 5 section by section, and remove the suspender 6 on the corresponding longitudinal beam 5 at the same time;

[0037] Step 6, rem...

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PUM

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Abstract

The invention discloses an arch bridge dismantling method. The method comprises the steps that firstly, auxiliary towers are built on the two sides of an arch bridge respectively; secondly, the auxiliary towers are connected with the arch ribs through the auxiliary zippers, then the auxiliary zippers are tensioned, and then the bridge deck system is dismantled; thirdly, the bridge deck slab is dismantled; fourthly, the cross beams are dismantled; fifthly, the longitudinal beams and the suspenders are dismantled step by step; sixthly, the arch ribs, the wind braces and the auxiliary zippers are dismantled step by step; and seventhly, the auxiliary tower and the bridge foundation are finally dismantled, and dismantling of the arch bridge is completed. The arch bridge can be safely disassembled into small blocks, the disassembled small blocks can be carried away through vehicles, ships and other carrying tools, and the surrounding environment is not affected.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a method for dismantling an arch bridge. Background technique [0002] Bridges generally refer to structures erected on rivers, lakes and seas to allow vehicles and pedestrians to pass smoothly. During the service period of the bridge, maintenance and reinforcement are required to meet the long-term service function of the bridge. When the bridge is increasingly degraded, cracked and other diseases develop seriously, and the repair and reinforcement can no longer meet the long-term service function of the bridge under economical and reasonable conditions, the bridge needs to be demolished. [0003] Common bridge demolition methods in the prior art include controlled blasting, static blasting, and mechanical demolition. [0004] Considering that blasting demolition cannot be used in river courses or busy traffic areas, mechanical demolition is usually used for small bridges such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D24/00E01D4/00
CPCE01D22/00E01D4/00
Inventor 闫兴非周良张涛张凯龙杨通甘露
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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