摘要
运用振型分解反应谱法对某堰闸坝整体结构进行地震作用计算,在对整体结构性能分析的基础上,对关键部位的应力状态进行了重点分析。结果表明:整体结构的变形和受力情况与激励地震的方向有关,几何突变和材料突变处产生了较大的主拉应力和主拉应力区,在抗震验算和配筋计算时应制定合理的处理措施;坝体的位移、应力、抗滑稳定性均满足规范的要求。
The mode-superposition response spectrum method was applied to calculate structure seismic action of a gate dam. Based on the analysis of the structure performance,we paid special attention to the stress state of the key parts. The results showed that the displacement and stress of the whole structure were related to the direction of earthquake excitation. As large principal tensile stress and principal tensile stress area appeared in steep change points of geometry shape and material, special attention should be paid when calculating anti seismic checking and reinforcement arrangement. The displacement, stress and the stability against sliding should meet the standard requirements.
出处
《南水北调与水利科技》
CAS
CSCD
2011年第1期44-46,63,共4页
South-to-North Water Transfers and Water Science & Technology
关键词
振型分解反应谱法
抗震性能
有限元法
mode-superposition response spectrum method
seismic performance
finite element method
