Bridge structure damage assessment method and device
A bridge structure and bridge technology, which is applied in special data processing applications, complex mathematical operations, design optimization/simulation, etc., can solve problems such as difficulty in assessing the degree of damage, difficulty in locating the damage position of the lateral connection structure of bridges, etc., and achieve accurate and efficient evaluation results. Effect
Active Publication Date: 2022-01-07
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD +1
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[0004] The embodiment of the present invention provides a bridge structure damage assessment method and device to solve the technical problems that it is difficult to locate the damage position of the bridge transverse connection structure and evaluate the damage degree in the prior art
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[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.
[0050] The embodiment of the present invention provides a method for assessing bridge structure damage, which can solve the technical problems in the prior art that it is difficult to locate the damage position of the bridge transverse connection structure, and it is difficult to evaluate the damage degree.
[0051] see figure 1 As shown, th...
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The invention discloses a bridge structure damage assessment method and device, and relates to the technical field of bridge detection. The assessment method comprises the following steps: S10, calculating a transverse distribution influence line of each piece beam according to a vehicle transverse distribution matrix when a plurality of vehicles separately pass through a bridge monitoring section and a response peak vector of each piece beam; S20, according to the transverse distribution influence line of each piece beam, judging whether the transverse connection structure of each piece beam is damaged or not; and S30, if the transverse connection structure of a certain piece of beam is damaged, evaluating the damage degree according to the transverse distribution influence line of the piece of beam. The damage position of the bridge transverse connection structure can be positioned, the damage degree can be evaluated, and the evaluation result is accurate and efficient.
Description
technical field [0001] The invention relates to the technical field of bridge detection, in particular to a method and device for assessing bridge structure damage. Background technique [0002] At present, prefabricated slab bridges are mostly prefabricated structures, and the girders are connected by hinge joints to form a lateral force transmission mechanism and provide lateral connection stiffness. Early plate girder hinge joints were mostly designed as shallow hinge joints, and the vehicle load design level was low. With the emergence of heavy-duty traffic and the increase of service life, the hinge material or the joint surface will experience fatigue deterioration to varying degrees, resulting in cracks, which will lead to the corrosion of the hinge steel bar, which will further lead to the decrease of the transverse connection stiffness of the hinge joint and affect the overall force of the bridge. , when it is serious, the single plate will be stressed, which direc...
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Login to View More IPC IPC(8): G06F30/20G06F17/16
CPCG06F30/20G06F17/16
Inventor 李成王亚飞钟继卫姚文凡许钊源姜玉印梅晓腾杨宇
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD