摘要
在移动荷载作用下桥梁运动方程的基础上,采用Newmark法对拱脚不同开裂状态下的动态响应进行了研究,结果表明:拱脚开裂对桥结构的动态特征是有一定影响的,随着拱脚开裂程度的加大,桥面各控制截面的挠度振动频率逐渐加大。
Based the bridge moved equation affected by moved load, using the Newmark method, we do the research on the dynamic responses in the differernt state of the damage of spring. The result shows the damage of spring has effect on the dynamic characteristic of bridge structure, with the damage becomes larger and larger, the deflection vibrate frequency of each cross section of bridge floor became bigger and bigger.
出处
《山西建筑》
2008年第33期5-7,共3页
Shanxi Architecture
