基于工程状态标定的诊断载荷试验识别方法及应用

Identification Method and Application of Diagnostic Load Test Based onEngineering State Calibration

针对在役公路梁式桥梁由于材料性能退化及外部环境等因素共同作用而导致承载力不足、耐久性降低等问题,开展旧桥力学性能的快速诊断试验研究。通过诊断性载荷试验的理论分析和有限元模型标定流程研究,快速、高效地完成在役公路桥梁的承载力性能测量和评估,从而为在役公路桥梁结构的养护管理提供可靠的技术支持。

With the continuous development of highway and bridges,in-service highway and bridges will have problems such as insufficient bearing capacity and reduced durability due to external environment and other factors.More and more attention has been paid to the diagnosis of the mechanical properties of old bridges and highways.As an effective dynamic load test,the diagnostic load test can effectively measure and evaluate the bearing capacity of highway bridges in service,and provide reliable technical support for the maintenance management of existing highway and bridges.