【作者】 丁子文； 凌佳燕； 朱浩川； 谢佳； 肖志斌；

【Author】 DING Ziwen;LING Jiayan;ZHU Haochuan;XIE Jia;XIAO Zhibin;The Architectural Design & Research Institute of Zhejiang University Co., Ltd.;Center for Balance Architecture, Zhejiang University;

【机构】 浙江大学建筑设计研究院有限公司； 浙江大学平衡建筑研究中心；

【摘要】 某海岛山地高层建筑,方案主要特点为裙房大厅外墙平面外倾斜,塔楼顶部通过连廊与山体相连接。该山地掉层结构采用框架-剪力墙体系,存在扭转不规则、尺寸突变、承载力突变、局部不规则(斜柱、穿层柱)等不规则项,属于规则性超限的高层建筑工程。整体结构采用抗震性能化设计方法,通过多遇地震反应谱分析和弹性时程分析、中震等效弹性分析及罕遇地震弹塑性时程分析进行研究,结果表明采取针对性加强措施后能实现整体抗震性能目标。对大厅13m高斜剪力墙进行专项分析,通过设置底层现浇梁板使大厅形成"卧置筒体",分析结果表明斜墙稳定性满足要求,最大变形折算的位移角小于1/1000,单肢墙顶部角区和联肢墙洞口上部角区出现应力集中,后续应予以局部加强。更多还原

【Abstract】 A high-rise building on a slope is located on an island. The main feature of this building is that the exterior wall of the podium is out-of-plane inclined, and the top of the tower is connected to the slope though a corridor. This step-terrace structure adopts a frame-shear wall system, which has irregularities such as torsional irregularity, size abrupt,sudden change in bearing capacity, and local irregularities like inclined column and penetrating column. It belongs to an out-of-code high-rise building. The structure adopted a performance-based seismic design method, and was studied through frequent earthquake response spectrum analysis, elastic time history analysis of frequent earthquake, equivalent elastic analysis for fortification earthquake, and elastoplastic time history analysis for rare earthquake. The results show that the overall seismic performance target can be achieved by taking targeted strengthening measures. At the same time,a special analysis was carried out on the inclined shear wall(measured as 13m high) of the hall. Due to the installation of cast-in-situ beams and slabs on the ground floor, a "horizontal rectangular tube" was formed, meeting the stability requirement of inclined shear wall. The special analysis results show that the maximum deformation converted displacement angle of the inclined shear wall is less than 1/1000, and there are stress concentrations in the top corner area of the single limb wall and the upper corner area of the coupled limb wall, which should be locally strengthened in the future.更多还原