交错桁架体系连接方式对结构性能的影响  

Influence of Framing System Connection of Staggered Truss on Structure and Performance

作　　者：朱道洪[1] 李启才[1] 

机构地区：[1]苏州科技学院土木工程学院,江苏苏州215011

出　　处：《苏州科技学院学报（工程技术版）》2009年第2期13-16,共4页Journal of Suzhou University of Science and Technology （Engineering and Technology）

摘　　要：利用ETABS程序建立柱脚固接和柱脚铰接的12层和20层的交错桁架结构体系模型,计算分析桁架弦杆与柱采用不同连接方式对柱子弯矩和结构侧移的影响,并考虑柱子弯矩和结构侧移的二阶效应。结果表明,桁架弦杆与柱采用不同连接方式对柱子弯矩有一定影响,对结构侧移没有影响,柱脚铰接只适用于楼层较少的交错桁架结构体系,为实际设计和后续研究提供参考。Using ETABS software, the paper establishes the framing system models of column foot fixed and hinged staggered truss in 12 and 20 floors, and analyzes the influence of the truss chord and column on the column moment and frame displacement with different connection modes, and also considers the second-order effect of the column moment and frame displacement. The result shows that the different connection modes of truss chord and column presents some influence on the column moment but no influence on the frame displacement, the column foot hinged connection is only suitable in the less floor＇s staggered truss framing system. The research will be of some reference to the practical design and further study.

关 键 词：交错桁架 柱子弯矩 结构侧移 二阶效应 

分 类 号：TU391[建筑科学—结构工程]