Box girder dismantling method
A box girder removal technology, which is applied in bridges, bridge maintenance, bridge reinforcement, etc., can solve the problems of large impact load of the lower bracket, potential safety hazards, and heavy weight of cutting blocks, so as to reduce weight, reduce impact load, The effect of improving safety
Inactive Publication Date: 2019-11-05
THE GUANGDONG NO 3 WATER CONSERVANCY & HYDRO ELECTRIC ENG BOARD CO LTD
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[0007] The purpose of the present invention is to provide a method for dismantling a box girder, to solve the problem that the existing method for dismantling a bridge is only applicable to the dismantling of a bridge with a smaller beam size and better integrity of the box girder. After cutting, the weight of the cutting block is large, and the impact load on the lower bracket is relatively large, which affects the stability of the bracket and has technical problems of great potential safety hazards
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[0057] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. 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.
[0058] Such as Figure 1-Figure 14 Shown, the dismantling method of the box girder provided by the present invention, comprises the steps:
[0059] Cutting along the horizontal direction of the box girder, cutting the box girder into a tank body 200 and a top plate 100 ; removing the top plate 100 ;
[0060] During actual operation, first cut along the horizontal direction of the box girder, cut the box girder into the top plate 100 and the tank body 200, then remove the top plate 100, and then cut vertically to form th...
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The invention provides a box girder dismantling method, and relates to the technical field of bridge construction transformation. The box girder dismantling method provided by the invention comprisesthe following steps of: carrying out segmentation along the horizontal direction of a box girder to segment the box girder into a groove body and a top plate; removing the top plate; and carrying outsegment along a vertical direction to segment the groove body into a plurality of sub groove bodies. During a practical operation, the segmentation is carried out along the horizontal direction of thebox girder to segment the box girder into the groove body and the top plate, then, the top plate is removed, and the tank body is segmented into the plurality of sub groove bodies. Since the top plate is firstly segmented and removed, the weight of the whole box girder is reduced. When the groove body is segmented, the impact load of the sub groove bodies for the bottom supporting component of the box girder is reduced, box girder dismantling safety is improved, and the box girder with a large cross beam size can be dismantled.
Description
technical field [0001] The invention relates to the technical field of bridge construction and transformation, in particular to a method for removing a box girder. Background technique [0002] During the rapid development of urbanization, more and more urban bridges will face demolition and reconstruction due to road renovation and upgrading, aging bridge structure, and traffic failure to meet the needs of supporting traffic development. [0003] For cast-in-place box girder bridges, the following methods are generally used for demolition: [0004] Usually, it is necessary to consolidate the box girder and the pier column first, that is, pour a concrete structure on the top of the pier column, use the bottom pier, pier column and concrete structure to consolidate the box girder, and then cut the whole block in sections along the horizontal extension direction of the bridge deck. Then lift and remove. [0005] There is following problem in the method for above-mentioned di...
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IPC IPC(8): E01D24/00
CPCE01D22/00
Inventor 兰泽全马鹏超谢辉勇莫华袁凯朱加军陈鑫马俊华杨文耀黄煜彬
Owner THE GUANGDONG NO 3 WATER CONSERVANCY & HYDRO ELECTRIC ENG BOARD CO LTD