奥克斯杭州未来科技城项目超限高层结构设计与分析  

Structural design and analysis on an out-of-code high-rise building of AUX project in Future Sci-Tech City of Hangzhou

作　　者：吴小平[1] 段贝 陈海啸[1] WU Xiaoping;DUAN Bei;CHEN Haixiao(Zhejiang Province Institute of Architectural Design and Research,Hangzhou 310006,China)

机构地区：[1]浙江省建筑设计研究院,杭州310006

出　　处：《建筑结构》2022年第5期107-113,共7页Building Structure

基　　金：浙江省重点研发资助项目(2018C03033-1)。

摘　　要：奥克斯杭州未来科技城项目为大型商业、办公、酒店建筑,由一幢59层的超高层塔楼以及6层商业裙房组成。塔楼采用矩形钢管混凝土柱+钢框架梁+钢筋混凝土核心筒结构体系,利用设备层和避难层设置三个环带腰桁架。由于建筑使用功能及客观条件的限制,结构存在高度超限、偏心布置、楼板大开洞、受剪承载力突变、斜柱、穿层柱等不规则项,属于体型不规则超限高层结构。针对结构的不规则性,采用基于性能的抗震设计,对结构进行多遇地震作用下的弹性分析、设防地震作用下的结构验算、罕遇地震作用下的弹塑性分析等,并对结构薄弱部位提出相应的抗震加强措施,使结构总体上达到了预期的C级抗震性能设计目标的要求,另外对结构进行了施工模拟和收缩徐变的影响分析,为后续设计和施工提供了参考及依据。The AUX project in Future Sci-Tech City of Hangzhou is a large-scale building integrating commerce, office and hotel, which consists of a super high-rise tower building with 59 floors and a commercial podium building with 6 floors. The structural system of the tower building is composed of concrete-filled rectangular steel tubular columns, steel frame beams, reinforced concrete corewall and three ring belt waist trusses arranged on mechanical floors and refuge floors. Due to the limitation of architecture functions and objective conditions, there are structural irregularities such as out-of-code height, eccentrically arrangement, large opening in the floor, abrupt change in shear bearing capacity, inclined columns, through-story columns, etc., and the structure belongs to the out-of-code high-rise structure with irregular shapes. Aiming at the irregularity of the structure, the performance-based seismic design was adopted to perform elastic analysis under the action of frequent earthquakes, structural check calculations under the action of fortification earthquakes, and elasto-plastic analysis under the action of rare earthquakes. And corresponding seismic strengthening measures were proposed for weak parts of the structure. So that the structure could meet the requirements of the expected C-level seismic performance design target in general. In addition, construction simulation and analysis of the impact of shrinkage and creep were carried out on the structure, providing reference and basis for subsequent design and construction.

关 键 词：超高层建筑 环带腰桁架 抗震加强措施 抗震性能设计 施工模拟 收缩徐变 

分 类 号：TU398.9[建筑科学—结构工程]