| 车桥撞击动力学分析模型 |
| |
| 引用本文： | 樊文才,张南,阎卫国.车桥撞击动力学分析模型[J].长安大学学报(自然科学版),2011(6):54-59. |
| |
| 作者姓名： | 樊文才 张南 阎卫国 |
| |
| 作者单位： | 江苏省交通科学研究院;长大桥梁健康检测与诊断技术交通行业重点实验室;南京工业大学土木工程学院; |
| |
| 摘 要： | 针对频发的车桥撞击事故,采用落锤冲击试验装置,进行了钢筋混凝土圆形桥墩模型在静力及侧向撞击荷载下的力学性能试验,建立了车桥撞击动力学分析模型。试验结果表明:桥墩撞击荷载下破坏模式与撞击力及材料动态性能相关;基于达朗贝尔原理建立的车桥一维碰撞的单自由度、双自由度模型求解撞击力与试验值基本吻合,峰值及平均值误差分别为-15.4%和14.5%。
|
| 关 键 词： | 桥梁工程 车桥碰撞 钢筋混凝土桥墩 缓冲器 应变率 |
Calculation on impact force of vehicle collision on bridge |
| |
| FAN Wen-cai,ZHANG Nan,YAN Wei-guo.Calculation on impact force of vehicle collision on bridge[J].JOurnal of Chang’an University:Natural Science Edition,2011(6):54-59. |
| |
| Authors: | FAN Wen-cai ZHANG Nan YAN Wei-guo |
| |
| Institution: | FAN Wen-cai1,3,ZHANG Nan2,YAN Wei-guo1,3(1.Jiangsu Province Institute of Transportation Research,Nanjing 211112,Jiangsu,China,2.School of Civil Engineering,Nanjing University of Technology,Nanjing 210009,3.Key Laboratory for Large-span Bridge Health Inspection & Diagnosis Technology of Ministry of Transportation,China) |
| |
| Abstract: | In order to study the collision of vehicle on bridge,the static and dynamic tests of reinforced concrete pier model under lateral impact loading were conducted by falling-weight impact equipment,and the dynamic analysis models were set up.The tests show that the failure mode of pier is related to the impact force and the dynamic mechanical properties of materials.The results show that the impact force calculated by dynamic equations about single-degree-of-freedom and two-degree-of-freedom models under one-d... |
| |
| Keywords: | bridge engineering vehicle collision on bridge reinforced concrete pier buffer strain rate |
| 本文献已被 CNKI 等数据库收录！ |
|
