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Double-layer multi-span bridge construction method

A technology of bridge construction and construction method, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of large number of tire frames, high construction cost, long construction period, etc.

Active Publication Date: 2021-06-08
CHINA CONSTR SCI & IND CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the number of tire frames required to support double-deck multi-span bridges is large, the construction cost is high, and the construction period is long

Method used

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  • Double-layer multi-span bridge construction method
  • Double-layer multi-span bridge construction method
  • Double-layer multi-span bridge construction method

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific ...

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Abstract

The invention discloses a double-layer multi-span bridge construction method. According to the double-layer bridge construction method, the method of disassembling a supporting jig frame in a grading and span-separated mode is adopted for construction, an upper chord jig frame and a lower chord jig frame can be used in a turnover mode, and the construction cost is reduced. In addition, the construction period of building the supporting jig frame is shortened, other construction operations can be synchronously carried out on a span where the jig frame is disassembled, for example, after the jig frame is disassembled, fire retardant coating construction can be carried out on a mounted bridge floor, and the construction period of a double-layer multi-span bridge is effectively shortened. In addition, according to the double-layer multi-span bridge construction method in the embodiment of the invention, the upper chord jig frame and the lower chord jig frame are disassembled in a graded mode, and it can be guaranteed that the bridge structure is stably and safely transited to the designed stress state.

Description

technical field [0001] The invention relates to the field of construction, in particular to a construction method for a double-layer multi-span bridge. Background technique [0002] At present, the national steel structure is vigorously developed, and the number of multi-span and double-layer steel structure bridges continues to increase. The construction method of multi-span and double-layer steel structure bridges currently adopts the bracket method. The support method is to lay the tire frame before the construction of the double-layer multi-span bridge to support the construction of the double-layer multi-span bridge. After the double-layer multi-span bridge is completed, the tire frame is dismantled. However, the number of tire frames required to support the double-layer multi-span bridge is large, the construction cost is high, and the construction period is long. Contents of the invention [0003] The present invention aims to solve at least one of the technical p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00E01D12/00
Inventor 任磊磊闫瑞华贺志强孙冰张槐东杨思杰姜伟李文博孙英武张宇航
Owner CHINA CONSTR SCI & IND CORP LTD
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