地震作用下钢筋混凝土桥墩抗倒塌性能研究  

Research on Collapse Resistance of RC Bridge Abutments under Earthquake

作　　者：史梦珊 孔婷婷[1] 布占宇[1] 

机构地区：[1]宁波大学建筑工程与环境学院,浙江宁波315211

出　　处：《港工技术》2015年第3期29-35,共7页Port Engineering Technology

基　　金：国家自然科学基金(51208268);国家山区公路工程技术研究中心开放基金(GSGZJ-2012-04);近海冲击与安全工程开放基金(zj1224);宁波大学校级科研项目(XYL12002);宁波大学学科项目(2014)

摘　　要：为研究混凝土桥墩的结构抗震性能,进行了单墩多自由度体系非线性静力推倒分析、非线性动力分析、增量动力分析。分别采用纤维模型中分布塑性铰和集中塑性铰两种建模方法,建立单墩有限元模型,利用Open Sees软件中的Hysteretic滞回模型考虑各种累积损伤的影响。The seismic resistance of concrete abutments nonlinear dynamic analysis and incremental dynamic multiple-degree-of-freedom system. The finite element was studied through nonlinear static pushover analysis, analysis of single abutment under the condition of model of single abutment was built by using spread plastic hinge and lumped plastic hinge of fiber model respectively. The influence of various accumulative damages was taken into consideration by using OpenSees hysteretic model.

关 键 词：钢筋混凝土桥墩 增量动力分析 纤维模型 地震响应 抗倒塌性能 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]