横向撞击荷载下钢筋混凝土桥墩动力响应研究  

Research on Dynamic Response of Reinforced Concrete Bridge Piers under Transverse Impact Load

作　　者：杨洋[1] 张南[1] 张莉杰[1] 

机构地区：[1]南京工业大学土木工程学院,江苏南京210009

出　　处：《公路工程》2015年第3期37-41,共5页Highway Engineering

基　　金：国家自然科学基金资助(51278243)

摘　　要：运用拉格朗日动力方程和结构力学原理,研究了横向撞击作用下桥墩的动力响应,得到了横向撞击作用下桥墩动态弯矩、动态剪力以及动态应变的表达式,并分析了影响桥墩撞击作用下动内力的主要影响因素,计算结果与试验值符合较好。为研究桥墩横向撞击下桥墩的动力响应提供了一定的参考。The research on dynamic response of reinforced concrete piers under Transverse impact load are researched by the Lagrange equation and principle of structural mechanics. The equations of dynamic bending moment、dynamic shear and dynamic strain have been gotten. The main influence factors of the dynamic shear of bridge piers under transverse impact load are analyzed. The calculation results coincide well with the test value. The research results of this paper provides a certain reference for the research of dynamic response of a bridge pier under Transverse load.

关 键 词：钢筋混凝土桥墩 横向撞击荷载 弹性阶段 动力响应 

分 类 号：U448.34[建筑科学—桥梁与隧道工程]