影响交错桁架整体延性的结构因素  

Structural Factors Influenced Global Ductility of Staggered-Truss

作　　者：许红胜[1] 周绪红[2] 刘永健[3] 

机构地区：[1]长沙理工大学桥梁与结构工程学院,湖南长沙410076 [2]长安大学建筑工程学院,陕西西安710061 [3]长安大学公路学院,陕西西安710064

出　　处：《建筑科学与工程学报》2006年第2期52-56,共5页Journal of Architecture and Civil Engineering

基　　金：国家自然科学基金项目(50078021);湖南省自然科学基金项目(00JJY2067)

摘　　要：针对施工方便、造价低廉的交错桁架结构体系的设计方法、构造细节及防震减灾问题,对影响交错桁架结构体系的整体延性性能的若干结构因素,如桁架不落地、桁架构件、柱的连接形式及建筑高宽比等进行了研究。研究结果表明:在交错桁架设计中,应采用抗弯矩连接,避免采用底层桁架不落地的交错桁架结构形式。该研究结果及建议对交错桁架结构体系在中国的推广和应用有积极的意义。Improved fabricated efficiencies and low mill prices system winning choice for multistorey residential construction. make staggered-truss structure To generalize the use of the system, more works need to be done on design methodology, details of seismic design and seismic design methodology, Authors investigated influence of some factors on global ductility of staggered-truss framing system. Those factors included non-truss on the first floor, the model of connection of elements and ratio of building height and building width. Some suggestions about seismic design of the staggered-truss framing system were offered. It is good to the application and popularization of the staggered-truss framing system in China.

关 键 词：交错桁架 结构体系 整体延性 破坏模式 抗震设防烈度 

分 类 号：TU323.4[建筑科学—结构工程]