A complete set of methods for intelligent monitoring and rapid detection of bridge cluster structure operation safety

Abstract

The invention belongs to the field of bridge structure operation safety monitoring and detection, and particularly relates to a bridge cluster structure operation safety intelligent monitoring and rapid detection complete technology which mainly comprises the following four contents: 1, a bridge cluster monitoring system building technology based on high-measuring-point density sensing equipment;2, a bridge structure damage diagnosis method based on temperature-damage stripping; 3, a bridge structure safety rapid detection technology based on a deflection influence surface; and 4, a bridge cluster structure damage diagnosis method based on the deflection influence surface, wherein the first two contents belong to a bridge intelligent monitoring technology and are applied to operation safety diagnosis of a bridge structure with a monitoring system in a cluster; and the last two contents belong to a bridge rapid detection technology and are applied to safety diagnosis of a bridge structure without a monitoring system in a cluster. According to the bridge cluster structure operation safety intelligent monitoring and rapid detection complete technology, bridge structure operation safety monitoring and rapid detection technologies are combined, and the provided complete technology is suitable for operation safety diagnosis of all bridge structures in a bridge cluster.

Description

technical field [0001] The invention belongs to the field of bridge structure operation safety monitoring and detection, and in particular relates to a complete set of methods for intelligent monitoring and rapid detection of bridge cluster structure operation safety. Background technique [0002] Bridge cluster refers to a bridge group composed of multiple bridges in the regional road network or urban ring. Different from a single large bridge, cluster data covers both the monitoring information of bridges with monitoring system and the detection information of bridges without monitoring system, and there are many types of data; the non-similar bridge structures in the cluster need to be processed one by one, and the workload is heavy; The data between similar bridges in the cluster are related and can be easily mined. Therefore, how to effectively use the characteristics of cluster data to realize the damage diagnosis of all bridges is a challenging problem in the field o...

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Problems solved by technology

[0003] In addition, the use of monitoring and detection technology to ensure the operation safety of bridge cluster structures still faces the following problems: First, the existing bridge structure health monitoring mainly uses point sensor technology, and the measuring points of such sensors are discontinuous in space, which is difficult to organize There is a possibility of missed measurement of key parts of the structure; secondly, operating bridges are often subject to the coupling effects of various factors such as environmental temperature changes, material aging, and load effects. The impact of environmental factors on bridge structural response monitoring data cannot be ignored, and this The first effect often conceals the monitoring data changes caused by bridge structure damage; third, the existing bridge structure detection technology often needs to close the traffic for a long time, the test process is complicated and the cost of test detection is high

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