摘要
利用ANSYS软件,对Ⅱ类场地上的挖井基础桥墩在两种边界条件下的冻土和融土的地震反应进行了计算,并对结果进行了分析和比较.结果表明Ⅱ类场地上的挖井基础桥墩,采用粘弹性边界时的桥墩地震反应比固定边界时的地震反应小;冻土时的地震反应比融土时的地震反应明显减小.
The seismic responses of the pier with shallow foundation on the Ⅱ sites are studied using ANSYS software,and the computing results with or without the frozen layer under two boundaries are analyzed and compared. The results indicate that the seismic responses of pier under the viscous-spring boundary are less than that under the fixed boundary, and the seismic responses of pier on the site with the frozen layer are much less than that without the frozen layer.
出处
《兰州交通大学学报》
CAS
2007年第3期10-13,共4页
Journal of Lanzhou Jiaotong University
关键词
固定边界
粘弹性边界
季节性冻土层
桥墩
地震反应
fixed boundary
viscous-spring boundary
seasonally frozen ground
pier
seismic response
