（中国建筑标准设计研究院， 北京 100048）

［摘要］六盘水会议中心钢结构屋盖采用钢桁架结构体系。重点探讨了结构设计中的关键问题，如结构体系选型、构件优化布置、节点设计以及楼板舒适度验算等。通过不同布置方案的分析比较，实现了设计优化。利用ANSYS软件进行节点有限元模拟分析，得出节点设计的关键部位，并给出加强措施。利用MIDAS Gen软件分析大跨度屋盖在步行荷载作用下的加速度响应，采用峰值加速度对楼板舒适度进行评价。

［关键词］六盘水会议中心； 钢桁架； 结构选型； 构件布置； 节点分析； 舒适度； 步行激励

中图分类号：TU318， TU393-3文献标识码：A文章编号：1002-848X(2016)19-0046-05

Steel structural design on the roof of Liupanshui Meeting Center

Bai Shuyang,  Wei Zhenfei,  Liu Guoyou,  Wang Hanbing

(China Institute of Building Standard Design & Research,  Beijing 100048,  China)

Abstract:Steel truss structural system is applied in the roof of Liupanshui Meeting Center. Critical problems in structural design were comprehensively discussed,  such as structural system selection,  optimized arrangement of components,  joint design,  and comfort degree check of floor. The design was optimized according to the comparison and analysis among different arrangement plans. Furthermore,  ANSYS software was used to conduct finite element simulation analysis on the joints to find the key parts in joint design,  and the corresponding strengthening measurements were proposed. In addition,  MIDAS Gen software was employed to analyze the acceleration response of the large-span roof under pedestrian-induced loads. The comfort degree of floor was then evaluated based on the peak acceleration.

Keywords:Liupanshui Meeting Center; steel truss； structural system selection； component arrangement； joint analysis； comfort degree； pedestrian-induced excitation

作者简介：白树杨，硕士，工程师，Email：bsyjob@126.com。