襄阳科技馆钢结构设计

Steel structural design of Xiangyang Science and Technology Museum

襄阳科技馆项目建筑外表面为空间不规则曲面,平面布置呈椭圆环形。主体为钢框架-混凝土剪力墙结构体系,上部为交叉网格钢结构屋盖。项目存在空间形体复杂、屋盖结构异形、北侧结构整体外挑、东侧入口处大跨度空间等结构设计难点。进行了设防地震下的弹性分析以及罕遇地震下的弹塑性分析,并进行了相应抗震性能目标下结构整体和局部的抗震性能验算,以确保结构安全可靠,使其具有良好的抗震性能。

Architectural faqade of Xiangyang Science and Technology Museum project has spatial irregular curve surface and its plane layout is an oval ring. The main body is the steel frame-concrete shear wall structural system, and the upper part is the cross grid steel structural roof. The project has the difficulties in the structural design, such as the complex spatial structure, the abnormal shape of roof structure, overall cantilever of the north structure, and the large-span space in the east entrance. For the project, elastic analysis under the fortification earthquake was supplemented as well as elasto-plastic analysis under the rare earthquake. And the seismic performance calculations for the overall structure and local parts were carried out based on corresponding seismic performance objectives, to ensure that the structure is safe and reliable and to make it have good seismic performance.