岩土力学2013，Vol.34Issue(6)：1807-1814,8.
基坑开挖对邻近不同刚度建筑物影响的三维有限元分析
Finite element analysis of response of building with different stiffnesses adjacent to excavation
李志伟 1郑刚2
作者信息
- 1. 福建省建筑科学研究院,福州350025
- 2. 福建省绿色建筑技术重点实验室,福州350025
- 折叠
摘要
Abstract
Affected by various factors,the stiffness difference of the building adjacent to the excavation is significant.In order to understand the effect of the stiffness difference of building,the response of the building with different stiffnesses adjacent to excavation is analyzed subtly considering the small strain stiffness behavior of soil.The analytical results show that when the building with different stiffnesses locates over the lowest point and the hogging zone of the settlement trough,the tensile strain of the wall is the most obvious.In this case,the locations for any stiffness buildings are in most adversities.With the increase of the stiffness of the building,the deflection and the tensile strain of the wall decrease as the logarithmic curve.For the building with low stiffness,the tensile strain of wall chiefly depends on the extent of the settlement trough and is less affected by its stiffness.When the stiffness of the building is large,the performance of the building affected by the excavation primarily appears as rigid body motion,but the internal deformation of the building is relatively small.关键词
基坑/建筑物/三维有限元分析/刚度/墙体拉应变Key words
excavation / building / 3D-FE analysis / stiffness / tensile strain of wall分类
建筑与水利引用本文复制引用
李志伟,郑刚..基坑开挖对邻近不同刚度建筑物影响的三维有限元分析[J].岩土力学,2013,34(6):1807-1814,8.
