内蒙古自治区美术馆复杂钢结构设计

Complex steel structural design of Inner Mongolia Autonomous Region Art Museum

内蒙古自治区美术馆总建筑面积约为36000m^2,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。

Inner Mongolia Autonomous Region Art Museum has a construction area of approximately 36000m^2,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.