基于Bouc-Wen模型的桥墩滞回特性研究  

Study on hysteresis characteristics of piers based on Bouc-Wen model

作　　者：范以金 田石柱[1] FAN Yijin;TIAN Shizhu(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011

出　　处：《四川建材》2024年第11期154-157,共4页Sichuan Building Materials

摘　　要：选取工程中常见的桥墩作为研究对象,以OpenSees软件中常用的混凝土本构Concrete01及Concrete02,建立桥墩构件的有限元分析模型,采取低周往复加载方法对桥墩进行加载,得到桥墩的滞回曲线,然后,选用Bouc-Wen本构模型,建立同样的有限元模拟,获得滞回曲线,通过对比分析两者的滞回曲线与骨架曲线,发现Bouc-Wen本构模型能较好地表征混凝土的破坏性能。The common bridge piers in the project are selected as the research object,and the concrete constitutive Concrete01 and Concrete02 commonly used in OpenSees software are used to establish the finite element analysis model of the pier components,and the low cycle reciprocating loading method is adopted to load the piers to obtain the hysteresis curve of the piers,and then,the Bouc-Wen constitutive model is selected to establish the same finite element simulation to obtain its hysteresis curve,and the hysteresis curve and skeleton curve of the two are compared and analyzed.It is found that the Bouc-Wen constitutive model can better characterize the failure performance of concrete.

关 键 词：桥墩 低周往复加载 Bouc-Wen本构 滞回特性 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]