摘要
海航国际广场A座主楼高度249.6m,属于竖向不规则的超限高层结构。采用矩形钢管混凝土框架-混凝土核心筒结构体系,在层17,32和51设置了伸臂桁架和环向桁架以提高结构的侧向刚度。屋顶钢架高35.8m,与内核心筒无连接,采用交叉网格网壳结构形式。为提高结构抗震性能,结构上部设置了防屈曲耗能支撑。根据工程特点,采取了相应的超限技术措施。弹性分析表明工程各项计算指标比较理想,整体设计满足规范要求。弹塑性时程分析表明结构具有良好的抗震性能,防屈曲耗能支撑有效地发挥了作用。
The main building of Haihang International Plaza is a 54-storey （249. 6m） super high-rise building with a frame- corewall hybrid structural system. Outriggers are applied to increase the lateral stiffness of the structure in storey 17, 32 and 51. The roof frame with cross grid shell structural system is 35.8m high, and has no connection with the core-wall. The buckling-restrained braces（BRB） are also applied to increase seismic performance. According to the over-limit issues, the performance objectives and solutions are proposed. Elastic analysis showed that the results are satisfactory and the overall design meets the code requirements. Elasto-plastic analysis showed that the building has good seismic performance and the buckling-restrained braces work well.
出处
《建筑结构》
CSCD
北大核心
2013年第17期81-84,共4页
Building Structure
关键词
超高层结构
结构设计
防屈曲耗能支撑
伸臂桁架
钢管混凝土柱
super high-rise building
design
buckling-restrained braces
outrigger
CFST column
hybrid structure
