双层交通矮塔斜拉桥箱内车辆碰撞力比较研究  

COMPARISONS ON THE VEHICLE COLLISION FORCE INNER BOX OF THE DOUBLE DECK TRAFFIC LOW TOWER CABLE-STAYED BRIDGE

作　　者：沈正峰 郑净[1] 涂劲松[1] 夏松[1] 戈海玉[1] 

机构地区：[1]皖西学院建筑与土木工程学院,安徽六安237012

出　　处：《井冈山大学学报（自然科学版）》2016年第2期66-69,101,共5页Journal of Jinggangshan University (Natural Science)

基　　金：皖西学院校级顶上(WXZR201624);六安市产学研合作项目2013LWA001

摘　　要：采用LS-DYNA程序研究双层交通预应力斜拉桥箱内车辆碰撞力,提出有限元计算碰撞力的修正方法,对比已有研究,验证计算结果的正确性。得出碰撞力和速度、质量以及角度关系,使用matlab程序拟合出碰撞力计算公式,为该新型结构防撞设计提供参考。Using LS-DYNA program, a vehicle collision force in the box girder of double transportation prestressed cable-stayed bridge is studied. An amend calculation method of collision force by finite element is presented. Compared to existing studies and verifies the correctness of the calculation results, the relationship between collision force with speed, quality and angle is obtained. Furthermore, a fitting equation of the collision force, by means of MATLAB, can be provided as cross references for the new structure anti-collision design.

关 键 词：双层交通 矮塔斜拉桥 连续箱型梁 碰撞力 拟合函数 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]