A reinforcement structure and method for controlling deformation coordination of suspension bridges in mountainous areas
A technology of deformation coordination and reinforcement structure, applied in the direction of bridge reinforcement, bridge form, bridge, etc., to achieve the effect of low construction cost and simple structure
Active Publication Date: 2018-12-04
NINGBO COMM PLANNING INST CO LTD +1
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problems existing in the prior art, and provide a reinforcement structure that controls the coordination of deformation of suspension bridges in mountainous areas, so as to prevent damage or collapse caused by the coordination of bridge deformation
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[0028] The present invention will be further described below in conjunction with accompanying drawings, because it is convenient to understand better. The technical features in the present invention can be combined with each other under the premise of not conflicting with each other, which does not constitute a limitation.
[0029] Such as figure 1 As shown, it is a common form of the stiffened beam of the suspension bridge, the two ends of the upper main cable are anchored, and the rigidity reinforcement beam is connected by the sling. When it is in a normal loading situation (design consideration situation), the load of the vehicle is vertically downward, and the suspension cable can meet its load requirements. However, under unconventional load conditions (which are not considered in the design), some upward loads will cause deformation of the beam and slab. If the girder plate is a currently popular glass bridge, since the deformation is not considered in the design, the...
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The invention discloses a reinforced structure and method for controlling the deformation compatibility of a mountainous area suspension type bridge, and belongs to the field of bridge engineering. Arc-shaped oblique limiting cables are symmetrically tensioned on the two sides of the bridge respectively, and the limiting cables and a main bridge beam are connected through a short cable; a plane formed by the limiting cables and the short cable is located below a beam plate of the bridge and forms a certain included angle with the beam plate. By means of the limiting cables and the short cable, structural deformation generated by the bridge under the action of lateral or upward wind force or other action force is effectively controlled, and the original bearing capacity of the bridge can be kept. According to the structure and the construction method, the structure is simple, the construction cost is low, and the structure and the construction method can be effectively applied to controlling deformation compatibility control of built bridges or bridges to be built.
Description
technical field [0001] The invention belongs to the field of bridge engineering, and in particular relates to a reinforcement structure and a method for controlling deformation coordination of a suspension bridge in mountainous areas. Background technique [0002] Bridges are one of the common road forms, so the importance of their structural safety is self-evident. But in recent years, many small and medium-span highway bridges that have been built have suffered structural damage or even collapse prematurely. According to statistics, there have been dozens of bridge collapse accidents in China. Once a bridge collapse accident occurs, it will not only cause huge economic losses, but is usually accompanied by serious casualties, and the social impact is extremely bad. However, the reason is that, in addition to the collapse caused by overloading, insufficient maintenance or natural disasters in the later use process, there are also a large number of cases of bridge structur...
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IPC IPC(8): E01D22/00E01D11/02
CPCE01D11/02E01D22/00
Inventor 朱汉华陈孟冲李志勇
Owner NINGBO COMM PLANNING INST CO LTD