摘要
利用OpenSees有限元软件对美国加州地区的Truckee-I80/Truckee River Bridge(TRB)桥梁结构进行了数值模拟。然后应用改进的直接刚度法对该模型进行了有无测量误差下的单处、多处损伤评估;同时对该桥进行了相应的推覆分析以及地震动输入下的非线性损伤评估。评估结果表明:改进的直接刚度法对以弯曲变形为主的桥梁结构的损伤评估是有效和可行的。
The numerical simulations for the Truckee-180/Truckee River Bridge Structure, California in USA, were conducted in different damage scenarios in platform of OpenSees. In this study, the damage status of the model was evaluated by using the improved direct stiffness method with consideration of single and multiple damaged locations under measurement errors or not, push-over analysis, and seismic damage evaluation. The results show that the improved direct stiffness method is valid and efficient for damage detection in bending-type bridge structures.
出处
《工程力学》
EI
CSCD
北大核心
2012年第1期114-120,140,共8页
Engineering Mechanics
基金
国家自然科学基金项目(51178486)
