摘要
磁悬浮基础为保证列车的正常运行,对变形要求极高,对于其抗震问题尚没有成熟的方法可供利用。本文采用有限单元法对磁悬浮基础进行了三维动力计算,分析了不同地震波输入对磁悬浮基础地震反应加速度、位移的影响,并计算分析了磁悬浮基础及周围土体的震陷。所得结论可为磁悬浮基础抗震设计提供参考依据。
It is very strict of the displacement of the foundation of the maglev guideway for the maglev train to work in gear. Seismic response analysis of the foundation is especially important. Therefore, this paper makes some analysis of it in 3D by FEM. Several seismic waves each are put into the analytic model in horizontal direction, and the transient response in time history is analyzed. The horizontal displacement response is specially calculated. According to the theory of dynamic analysis of effective stress, combined with the static analysis, the seismic subsidence of the foundation and soil around is investigated. Finally, some useful conclusions are reached.
出处
《工程抗震与加固改造》
2005年第2期8-12,共5页
Earthquake Resistant Engineering and Retrofitting
