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.
出处
《兰州交通大学学报》
CAS
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)
关键词
超高车辆
混凝土T梁桥
撞击
模型试验
有限元分析
over-high truck
concrete T-girder bridge
collision
scaled model test
finite element analysis
