A method for a typical damage simulator of a cable-stayed bridge

A technology for damage simulation and cable-stayed bridges, applied to cable-stayed bridges, measuring devices, bridges, etc., can solve the problems of less consideration of typical damage, single damage condition and location, lack of systematic research, etc., and achieve diverse test contents , the test results are true and effective, and the data is true and effective

Active Publication Date: 2021-11-23
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

However, the existing models rarely consider the typical damage of bridge structures, the form and location of damage conditions are relatively single, and there is a lack of systematic research on multiple damage conditions at different degrees and locations in actual bridge structures

Method used

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  • A method for a typical damage simulator of a cable-stayed bridge
  • A method for a typical damage simulator of a cable-stayed bridge
  • A method for a typical damage simulator of a cable-stayed bridge

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Embodiment Construction

[0059] The present invention will be further described below in conjunction with the accompanying drawings.

[0060] Such as Figure 1 to Figure 7 As shown, the present invention is used for the typical damage simulation device of cable-stayed bridge, which includes five subsystems of girder system, cable system, pier tower system, load system and measurement system, wherein:

[0061] Main girder system: used to simulate typical damage conditions of the main girder of cable-stayed bridges;

[0062] Cable system: used to simulate typical broken cable damage conditions of cable stays;

[0063] Pier tower system: used to fix the main beam system and cable system;

[0064] Load system: used to provide different static load cases;

[0065] Measuring system: used to measure the cable force of the cable system, the internal force of the main beam 1 in the main beam system, and the stiffness of the main beam 1 in the main beam system.

[0066] The main beam system includes a multi...

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Abstract

The invention discloses a device and method for typical damage simulation of cable-stayed bridges, wherein the device for typical damage simulation of cable-stayed bridges includes five sub-systems: girder system, cable system, pier tower system, load system, and measurement system. System, main girder system: used to simulate the typical damage condition of the main girder of the cable-stayed bridge; cable system: used to simulate the typical broken cable damage condition of the cable-stayed cable; pier tower system: used to fix the main girder system and the cable system ; Load system: used to provide different static load conditions; Measuring system: used to measure the cable force of the cable system, the internal force of the main beam in the main beam system, and the stiffness of the main beam in the main beam system. The invention can effectively obtain the performance degradation rule of the cable-stayed bridge under typical damage, has simple structure, flexible operation, clear stress and wide application range.

Description

technical field [0001] The invention belongs to the technical field of bridge test devices, in particular to a method for a typical damage simulation device of a cable-stayed bridge. Background technique [0002] A cable-stayed bridge is a statically indeterminate structure composed of main girders, cable towers, and cable-stayed cables. Under the influence of factors such as unfavorable environments and external loads, some components will have varying degrees of damage and disease, such as cable corrosion, main girder Cracking, etc., the structural performance degradation mechanism and theoretical model are more complex than those of general bridge types. A large number of cable-stayed bridges have been built in our country. These cable-stayed bridges have accumulated a lot of damage during use, and their structural performance has changed greatly. Once these structures fail, huge losses will be caused. The existing studies on bridge performance degradation models mostly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00E01D11/04
CPCE01D11/04G01M99/007
Inventor 马亚飞彭安银张建仁王磊张义凤胡宏伟
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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