杂多县体育综合馆钢结构设计  

Steel structure design on the multi-purpose gymnasium in Zaduo County

作　　者：张晓新 郭璇[2] 

机构地区：[1]中国中建设计集团有限公司(直营总部),北京100037 [2]北京交通大学土木建筑工程学院,北京100044

出　　处：《建筑结构》2014年第23期9-14,共6页Building Structure

基　　金：国家自然科学基金(51378051)

摘　　要：杂多县体育综合馆主体结构采用钢筋混凝土框架结构体系,屋盖由大跨度钢结构高次曲面网架组成。对工程结构体系的选型到荷载取值、边界条件、参数取值等进行了分析选定。采用合模计算及分模计算的包络设计方法确保计算内容涵盖结构最不利受力情况;采用抗震性能化设计方法对支座相关构件按设定的性能目标进行设计;网架下弦支座选用成品铰接支座与钢管混凝土柱顶连接,节点可最大限度地符合铰接支座计算假定。钢管混凝土柱脚节点为伸入框架柱的外包柱脚刚接节点,此节点构造复杂,角柱位置节点构造尤其复杂,采用断筋焊接及环绕后锚固方式处理,在满足设计要求的基础上最大程度地降低现场施工难度。The multi-purpose gymnasium of Zaduo County adopts structural system of reinforced concrete frame in main structure and large-span steel structure high-order cylindrical spatial grid in roof system. The structural system,load value,boundary conditions and parameters of design were analyzed and selected. Envelope design methods of overall model and separated model were applied to cover the most unfavorable bearing conditions of the structure. Performance-based seismic design method was applied to design supporting members according to the established performance goals. The truss chord supporting was connected by a row of hinge joint on the top of concrete-filled steel tubular column and the joint could correspond to the hinge joint calculation assumption at the most. The encased base rigid joint into the frame column,which was used as base joint of concrete-filled steel tubular column,has complex connection detail especially in corner column position. The treatments of broken rebar welding and surrounding post-anchorage were adopted to reduce the construction difficulty onsite in maximum extent on the basis of meeting the design requirements.

关 键 词：体育综合馆 抗震性能化设计 支座节点假定 复杂节点处理 

分 类 号：TU318[建筑科学—结构工程]