(1 柏涛国际工程设计顾问 (深圳) 有限公司, 深圳 518031;2 深圳市柏涛蓝森国际建筑设计有限公司, 深圳 518053)

摘要: 长沙国际会议中心为中国中部地区大型的国际会议中心场馆,采用方钢管混凝土柱+钢梁形式的钢框架结构,大跨无柱空间采用钢桁架,主要特点是局部有夹层和大跨楼盖,属于具有扭转不规则、楼板不连续(局部穿层柱)、层抗剪承载力突变、局部夹层等一般不规则项的高层建筑. 针对工程特点进行重难点分析并提出设计对策,结果表明:夹层的不同模拟方式对结构整体计算影响不大;大跨度楼盖设计应重点关注钢桁架节点构造的受力可靠性及施工便利性;主入口拱形结构可以很好地实现建筑方案效果,具有较高的承载力富余和良好的延性;穿层柱设计时取计算长度系数 μ = 1. 0 是安全可靠的,穿层柱具有较高的极限承载能力;通过加密圈梁和构造柱,并验证其形成子结构的整体稳定性,可以保证超高砌体隔墙的安全可靠.

关键词: 长沙国际会议中心; 钢框架; 钢桁架; 大跨楼盖; 夹层结构; 拱形结构; 穿层柱; 超高砌体隔墙

中图分类号:TU391,TU973 文献标志码:A 文章编号:1002-848X(2023)02-0067-08

DOI:10. 19701 / j. jzjg. 20220376

Structural design of Changsha International Conference Center

LIN Chaowei1,2, GAO Yiqi1,2, WANG Xingfa1,2, LIU Hongxing1,2, FANG Feihu1,2

(1 PTI Engineering Design Consultancy Shenzhen Co. , Ltd. Shenzhen 518031, China;2 Shenzhen PT Lansn International Architecture Design Co. , Ltd. , Shenzhen 518053, China)

Abstract: Changsha International Conference Center is a large international conference center in central region of China, itbelongs to steel frame structure system with square concrete-filled steel tubular columns and steel beams, and steel trussesare used in large-span column-free space. The structure is characterized by local mezzanine and large-span floor, it belongsto the high-rise building with general irregular items such as torsion irregularity, discontinuity of floor ( local cross-floorcolumn), excessive variation of floor shear capacity, local mezzanine, and so on. The key and difficult points of the projectwere analyzed and the corresponding design countermeasures were put forward. The results show that the differentsimulation methods of local mezzanine have little influence on the overall structure calculation. The mechanical reliabilityand construction convenience of steel truss joints should be emphasized in the design of large-span floor. The arch structurecan realize the effect of the architectural scheme, and has enough bearing capacity as well as good ductility. It is safe andreliable to take the length factor μ as 1. 0 for the design of cross-floor column, and the cross-floor column has high ultimatebearing capacity. The safety and reliability of ultra-high masonry partition walls can be ensured by encrypting ring beamsand constructional columns, and verifying the stability of the sub-structure.

Keywords:Changsha International Conference Center; steel frame; steel truss; large-span floor; mezzanine structure; archstructure; cross-floor column; ultra-high masonry wall

第一作者:林超伟,博士,正高级工程师,主要从事建筑结构设计与研究,Email: lincw@ ptidesign. cn.

[引用本文] 林超伟,高义奇,王兴法,等. 长沙国际会议中心结构设计[ J]. 建筑结构,2023,53(2):67-74. LINChaowei,GAO Yiqi,WANG Xingfa,et al. Structural design of Changsha International Conference Center [ J]. BuildingStructure,2023,53(2):67-74.