上海国际航空服务中心结构设计

Structural design of Shanghai International Airlines Service Center

上海国际航空服务中心采用型钢框架-混凝土核心筒结构,框架柱与核心筒间采用两端铰接钢梁连接。由于平面不规则,采用风洞试验报告结果作为风荷载设计依据。采用性能化设计方法,将工程结构抗震性能目标定为中震C级、大震D级。根据动力弹塑性分析结果明确结构薄弱部位,提高构件配筋或含钢率增强结构整体性能。分析表明,层高较低的加强层在大震作用下斜杆拉力较大,框架柱及部分墙肢易出现中度以上的损伤。

Shanghai International Airlines Service Center adopts the structural system of steel frame-concrete core tube. The frame columns and core walls are connected with hinged steel beams at both ends. Due to the irregular plane, the wind tunnel report results were adopted as the wind load design basis. Using performance-based design method, the performance- based seismic goals of the project were set as C degree under medium earthquake and D degree under rare earthquake. The weak parts of the structure were determined according to the results of the dynamic elastic-plastic analysis results and the reinforcement or steel ratio were improved to improve the integral performance. Analysis shows that tension forces of diagonal strut of the lower strengthened story are large under rare earthquake. Frame columns and parts of walls are prone to suffer the moderate damage or above.