摘要
参考已有简化理论分析结果,提取出带加强层高层建筑结构顶点侧移的主要影响因素.采用sap2000对带加强层高层建筑进行有限元分析,研究了倒三角形侧向荷载作用下结构侧向刚度、构件内力与加强层伸臂相对刚度及外柱相对刚度的关系.分析了带加强层高层建筑结构在侧向荷载作用下的受力性能,提出在适当加强加强层附近楼层的前提下,通过结构侧移及构件内力与加强层伸臂刚度、外框架柱的刚度等的关系曲线对带加强层结构伸臂刚度取值进行优化,可供此类结构的设计参考.
Based on theoretical analysis resuhs of simplified planar structures with strengthened stories, main parameters that affect the structural performance are selected for analyses. Sap2000 is adopted for FEA analyses. According to FEA results of an outrigger braced high-rise structure, the outrigger stiffness should be within a rational range to save costs and the large lateral stiffness of the structure is provided. The proposed rational stiffness can be applied to the structural design if the stories adjacent to the strengthened ones are properly strengthened. The study can serve for the design of this kind of buildings.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2009年第10期193-196,共4页
Journal of Harbin Institute of Technology
关键词
带加强层的高层建筑
侧向刚度
伸臂
刚度比限值
outrigger braced high-rise structure
lateral stiffness
outrigger
stiffness ratio limit
