某带穿层斜柱双筒体超限高层结构设计
Structural design of an out-of-code high-rise building with cross-story inclined column and double tubes
高义奇 1林超伟 1王兴法 1洪伯聪 1邱裕绵2
作者信息
- 1. 柏涛国际工程设计顾问 (深圳) 有限公司,深圳 518031;深圳市柏涛蓝森国际建筑设计有限公司,深圳 518053
- 2. 柏涛国际工程设计顾问 (深圳) 有限公司,深圳 518031
- 折叠
摘要
仁恒世纪大厦为框架-双筒体结构,建筑高度 198m,结构平面呈哑铃状,属于具有扭转不规则、楼板不连续、局部不规则(局部穿层柱、个别构件错层)、斜柱托换等一般不规则项的超限高层建筑.介绍了工程结构特点和整体抗震性能化设计过程.论述了嵌固端选择、多角度地震输入、跨层斜板及穿层斜柱受力分析等设计重难点.结果表明:本工程采用的框架-双筒体结构具有良好的抗震性能;设计时将绝对嵌固端和名义嵌固端均设置在基础顶是合适的;塔楼双筒体布置并未导致明显的强弱轴,多角度地震输入的结构响应接近;裙楼跨层斜板对结构整体受力影响较小;穿层斜柱不会发生屈曲稳定破坏,通过构造加强后斜柱拉梁的设计安全可靠.
Abstract
Renheng Century Mansion is a frame-double tubes structure with building height of 198m,the structural plane is dumbbell-shaped,it belongs to an out-of-code high-rise building with general irregular items such as torsion irregularity,floor discontinuity,local irregularity(partial cross-story column,individual component split-floor)and inclined column transfer,etc.The characteristics of the engineering structure and the overall seismic performance-based design process were introduced.The design difficulties such as the selection of the embedded end,the multi-angle seismic input,the cross-story inclined plate and the force analysis of the cross-story inclined column were discussed.The results show that the frame-double tubes structure adopted in this project has good seismic performance;it is appropriate to set the absolute fixed end and the nominal fixed end on the top of the foundation in the design;the double tubes arrangement of the tower does not lead to obvious strong and weak axes,and the structural response of multi-angle seismic input is close;the cross-story inclined plate of the podium has little influence on the overall force of the structure;the buckling stability failure of the inclined column will not occur,and the design of the inclined column tension beam after structural strengthening is safe and reliable.
关键词
仁恒世纪大厦/超高层建筑/双筒体/多角度地震输入/跨层斜板/穿层柱/斜柱Key words
Renheng Century Mansion/super-high-rise building/double tubes/multi-angle seismic input/inclined cross-story floor/cross-story column/inclined column引用本文复制引用
出版年
2024
NETL
NSTL
万方数据