地基基础刚度变化对超高层束筒结构的影响  

Influence of the changing-rigid of the ground or foundationon super-tall-building bundled-tube structure

作　　者：谢向东[1] 徐礼华[1] 周俭清[2] 吴刚[2] 

机构地区：[1]武汉大学土木建筑工程学院,湖北武汉430072 [2]襄樊学院土木工程系,湖北襄樊441053

出　　处：《西安建筑科技大学学报（自然科学版）》2008年第2期184-188,共5页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

摘　　要：以超高层束筒结构为例,将超高层束筒结构与其基础等效连续化为一个半无限大弹性地基上的加劲薄壁筒中筒组合体,并以此三维模型,用半解析法分析计算了该结构地基基础刚度变化对其上部结构的影响.计算结果表明,地基基础刚度变化对超高层束筒结构的顶端侧移、层间侧移、上部结构的翘曲位移,地基和基础结构底部应力的影响是非常显著的.The influence of the changing-rigid of the subgrade or the foundation on super tall building bundled-tube structures is discussed with the numerical example of a super tall building bundled-tube structures by semi-analytical approach based on ODE（Ordinary Differential Equation） Solver. Results in the calculation show that the sideway of the building, the sideway between layers, the warp of the tube and the stresses between the bottom of the foundation and the subgrade are considerably influenced by the changing-rigid of the subgrade or the foundation.

关 键 词：超高层建筑 束筒结构 地基与基础 刚度变化 半解析法 常微分方程求解器 

分 类 号：TU973.2[建筑科学—结构工程]