地震作用下道路排水结构增量循环累积应变分析

Incremental Cyclic Cumulative Strain Analysis of Drainage Structures Under Seismic Action

分析地震作用下道路排水结构增量循环累积应变特征,提高道路排水结构的抗震能力,提出地震作用下道路排水结构增量循环累积应变分析模型。构建地震作用下道路排水结构的动荷载监测模型,重构应变传感器力学特征,积累大量的道路排水结构应变力学监测数据,提取排水结构增量循环累积应变的统计特征量,优化排水结构增量循环累积应变分析,采用经验模态分解法进行道路排水结构增量循环累积应变特征分解,根据特征分布的差异性进行地震作用下道路排水结构增量循环累积应变监测和动态模拟。仿真结果表明,采用该方法进行地震作用下道路排水结构增量循环累积应变分析的准确性较高,对应变特征的自适应性较好,提高了增量循环累积应变监测和动态评估能力。

This paper analyzes the characteristics of incremental cyclic cumulative strain of road drainage structure under earthquake,improves the seismic capacity of road drainage structure,and puts forward an analytical model of incremental cyclic cumulative strain of road drainage structure under earthquake action.The dynamic load monitoring model of road drainage structure under earthquake is constructed,the mechanical characteristics of strain sensor are reconstructed,a large amount of monitoring data of strain mechanics of road drainage structure is accumulated,and the statistical characteristic of incremental cyclic accumulated strain of drainage structure is extracted.The incremental cyclic cumulative strain analysis of drainage structure is optimized.The empirical mode decomposition method is used to decompose the incremental cyclic cumulative strain characteristic of road drainage structure.According to the difference of characteristic distribution,the ground is analyzed.Incremental cyclic cumulative strain monitoring and dynamic simulation of drainage structures under earthquake.The simulation results show that the method is more accurate and adaptive to the strain characteristics of road drainage structures under earthquake,and improves the capacity of incremental cyclic cumulative strain monitoring and dynamic evaluation.