超高车辆撞击钢筋混凝土T梁桥主梁试验研究  

Experimental Study on the Collision between Over-height Truck and Main Girder of Concrete T-girder Bridge

作　　者：何水涛[1] 陆新征[1] 卢啸[1] 曹海韵[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《兰州交通大学学报》2011年第6期20-25,共6页Journal of Lanzhou Jiaotong University

基　　金：国家自然科学基金(50808106);交通部西部交通建设科技项目(2008-318-223-43);清华大学青年教师自主选题基础研究项目(2010THZ02-1)

摘　　要：针对当前严重的车桥碰撞问题,设计了超高罐车撞击钢筋混凝土T梁桥的缩尺模型试验,并对撞击试验进行了动力非线性有限元模拟.试验表明:超高车辆撞击下钢筋混凝土T梁桥以局部破坏为主.文中建立的有限元模型和试验结果吻合良好.In order to investigate the failure mechanism of the frequently happened collisions between over-high trucks and bridge superstructures,the scaled model experiment on the collision between over-high tank truck and concrete T-girder bridge is designed and tested.The collision experiment is also simulated with nonlinear dynamic finite element analysis.The failure mode of the concrete T-girder bridge subjected to truck collision is local failure mode.The simulated results with proposed finite element model are in good agreement with the experimental results.

关 键 词：超高车辆 混凝土T梁桥 撞击 模型试验 有限元分析 

分 类 号：TU997[建筑科学—市政工程]