摘要
桥梁结构承受车辆、人群、风力和地震等动力荷载作用下产生振动,桥梁在动力荷载作用下的受力分析是桥梁结构分析的一项重要任务。时程分析是对受动力荷载的结构通过动力方程式进行求解的过程,即根据结构本身的特性和所受的荷载来分析在任意时刻结构的反应,如位移、内力等。运用Midas/Civil有限元软件分别建立与运行不同行车速度下,结构最大位移变化,为桥梁结构安全性提供一个重要指标。
The bridge structrue bearing vehicle, crowds, wind and earthquake generate vibration. Force analysis under power load on the bridge is an important task of the bridge stucture. Time history analysis on the dynamic loading structure is through the dynamic equation for solving process. That is, According to the characteristics of structure itself and by load analysis the structure response in any moment, such as displacement, internal force, etc. Using the finite element software Midas/Civil establish and operate the different speed of the structural maximum displacement-change, to provide am important index of the structure safety for bridges.
出处
《建筑技术开发》
2013年第3期17-18,61,共3页
Building Technology Development
关键词
桥梁结构
时程分析
结构反应
安全性
stucture bridge
time history analysis
stuctrue response
safety
