（1 中国航空规划设计研究总院有限公司， 北京 100120; 2 内蒙古自治区本级政府投资非经营性项目代建管理局， 呼和浩特 010010)

［摘要］内蒙古自治区美术馆总建筑面积约为36 000m2，为呼和浩特市地标性建筑。该项目为体型特别复杂的结构，平面呈L形，包含空间倾斜面、扭曲面、吊挂和大悬挑结构。首先介绍了结构体系的确定，重点从满足外幕墙体系、建筑内部空间、建筑水平和竖向交通及楼盖舒适度要求四个方面介绍了结构如何成就建筑之美。然后从整体设计难点与关键部位设计两个方面考虑，对悬挑钢结构进行了整体静力、抗震性能化、复杂节点、整体稳定及防连续倒塌等分析，并采取相应措施。结果表明整体结构安全可靠。

［关键词］美术馆； 吊挂和大悬挑； 抗震性能化分析； 连续倒塌

中图分类号：TU318文献标识码：A文章编号：1002-848X(2018)23-0085-07

Complex steel structural design of Inner Mongolia Autonomous Region Art Museum

Fan Qinxin1, Li Dong2, Xu Rui1, Jin Laijian1, Yang Chaojie1, Xu Zhijian1, Xie Jun1, Fu Jinlong1

(1 China Aviation Planning and Design Institute Co.，  Ltd.，  Beijing 100120, China；2 The Inner Mongolia Autonomous Region Investment Non-operating Project Construction Administration of the Government at the Corresponding Level, Hohhot 010010, China)

Abstract: Inner Mongolia Autonomous Region Art Museum has a construction area of approximately 36 000m2, and is  a landmark building in Hohhot. The project is a particularly complex structure with L-shaped plane, including spatial inclined plane, twisted surface, suspended and large cantilever structures. Firstly, the determination of the structural system was introduced, and it focused on the four aspects to explain how the structure achieved the beauty of architecture, including the external curtain wall system, building interior space, horizontal and vertical traffic of building and floor comfortableness. Secondly, the design difficulties in the overall structure and key parts were considered. Several analyses were conducted on the cantilever steel structure including the overall static analysis, performance-based seismic analysis, complex joint analysis, overall stability analysis and progressive collapse analysis, and corresponding measures were taken. The results show that the overall structure is safe and reliable.

Keywords:art museum; suspended and large cantilever; performance-based seismic analysis; progressive collapse

作者简介：樊钦鑫，硕士，高级工程师，一级注册结构工程师，Email：191128798@qq.com。