基于可靠性分析的桥梁结构变形检测方法研究

Research on bridge structure deformation detection method based on reliability analysis

针对普通桥梁结构变形检测方法执行效率低下、测量精度有限等问题,设计基于可靠性分析的新型桥梁结构变形检测方法。首先通过确定形变极值响应面的方式,计算可靠性遗传算子,完成桥梁形变量的可靠性分析。然后利用上述分析结果,在一定条件下,对遗传算子进行训练优化,定义桥梁结构的基本形变检测参数,再通过选择合适检测处理软件的方式,对所有执行数据进行规范整理,完成基于可靠性分析桥梁结构变形检测方法的搭建。最后模拟桥梁结构形变状态设计对比实验,结果表明与变形检测方法相比,应用基于可靠性分析的桥梁结构变形检测方法后,测量精度最大值提升至87%以上,有效缓解执行效率低下情况。

Aiming at the problems of inefficient execution and limited measurement accuracy of common bridge structure deformation detection methods,a new bridge structure deformation detection method based on reliability analysis is designed.Firstly, the reliability genetic operator is calculated by determining the response surface of deformation extremum,and the reliability analysis of bridge deformation is completed.Then using the above analysis results,under certain conditions,the genetic operator is trained and optimized to define the basic deformation detection parameters of the bridge structure,and then through the selection of appropriate detection processing software,all the execution data are standardized and sorted out to complete the bridge structure deformation detection method based on reliability analysis.Finally,the comparative experiment of the deformation state design of the bridge structure is simulated.The results show that compared with the deformation detection method,the maximum measurement accuracy of the bridge structure deformation detection method based on reliability analysis is increased to more than 87%,and the inefficiency of the implementation is effectively alleviated.