期刊论文

Yuan, M.(yuanming_dt@163.com)

中文

中国公路学报

1001-7372

2008

21

1

72-76+120

10.19721/j.cnki.1001-7372.2008.01.013

湖南省交通厅科技项目（200220）

本校为第一且通讯机构

在分析车-桥系统耦合振动研究资料的基础上，推导了基于自身假设条件下的车-桥系统耦合振动的运动方程组。利用VC＋＋编制了可用于车-桥系统耦合振动分析的专业程序CQZD。以2座大桥为例，分析了桥梁基频对大跨PC连续刚构桥冲击系数的影响，并将算例中的冲击系数计算结果同按规范JTGD60-2004计算的结果进行了比较。结果表明：桥梁基频对冲击系数的影响比较显著，冲击系数随基频的降低而降低。

On the basis of analyzing data on vehicle-bridge system coupling vibration, the motional equation sets of vehicle-bridge system coupling vibration under the autologous assumption were deduced. What's more, making use of VC++, a professional procedure CQZD was programmed which could analyze the vehicle-bridge system coupling vibration. Taking two bridges as example, the influence of bridge basal frequency on impact coefficient of PC continuous rigid frame bridges with long-span was analyzed. Impact coefficients calculated by calculated example code JTG D60-2004 respectively were compared. Resul...