(青岛北洋建筑设计有限公司， 青岛 266071)

［摘要］烟台八角湾国际会展中心AC厅结构采用大跨度钢框架结构体系，屋面采用平面桁架结构体系，屋盖呈波浪形，展厅屋盖平面投影最大长度约360m，最大宽度约270m，存在多项不规则项，属于超限结构。主要介绍了AC厅的设计思路，采用YJK和MIDAS Gen两种软件对结构进行了多遇地震作用下的整体计算，并采用弹性时程分析法进行补充验算；采用性能化设计方法保证主要构件在设防地震和罕遇地震作用下的性能要求；采用3D3S及MIDAS Gen软件对屋盖桁架结构进行分析，控制结构变形及应力比；对关键节点补充有限元分析计算。分析结果表明，设计方案合理、结构安全可靠。 

［关键词］烟台八角湾国际会展中心； 大跨钢框架结构； 平面桁架结构； 超限结构； 抗震性能设计； 弹性时程分析 

中图分类号：TU393-3 文献标识码：A文章编号：1002-848X(2021)12-0001-07

Structural design of No.AC exhibition hall in Yantai Bajiaowan International Convention and Exhibition Center 

XIA  Shiqun,  SUN  Hui,  DU  Tao,  LAO  Xijun,  TANG  Shuang,  HUANG  Xin,  DING  Wenlu 

(Qingdao Beiyang Engineering Design Co., Ltd.，Qingdao 266071， China) 

Abstract: No.AC exhibition hall in Yantai Bajiaowan International Convention and Exhibition Center adopts long-span steel frame structure system, and its roof adopts plane truss structure system, and the roof is undulating. The maximum plane projection length of the roof is 360 meters and width is 270 meters respectively. There are many irregular terms, which belong to out-of-code structure. The design ideas of No.AC exhibition hall were mainly introduced. Programs of YJK and MIDAS Gen were used to calculate the overall structure under the frequently occurred earthquakes, and the elastic time-history analysis method was used for supplementary check. Performance-based design method was adopted to ensure the performance requirements of main components under fortification and rare earthquakes. Programs of 3D3S and MIDAS Gen were used to analyze the  truss structure of the roof, to control structural deformation and stress ratio. The finite element analysis was applied to analyze key nodes. The analysis results show that the design scheme is reasonable and the structure is safe and reliable. 

Keywords:Yantai Bajiaowan International Convention and Exhibition Center； long-span steel frame structure； plane truss structure； out-of-code structure； performance-based seismic design； elastic time-history analysis

作者简介：夏世群，硕士，研究员，一级注册结构工程师，Email：qdbeiyang@126.com。