大连国际会议中心复杂曲面外围护框架结构设计

Design of complex external peripheral frame structure in Dalian International Conference Center

大连国际会议中心是复杂空间组合结构,外围护结构不但要将整个复杂曲面建筑物外部围合,而且还要将悬挑屋盖、钢平台有机连接起来。根据建筑立面设计要求,外围护结构的形式为曲面框架。该曲面框架少部分落地、大部分悬挂。根据整体计算的结果,在地震、风和温度作用下,外围护框架承担了相当可观的竖向和水平荷载,有效地保证组合结构整体性。外围护框架外部悬挂大量为建筑造型而设置的羽翅构造,风荷载的作用非常明显。外围护框架上镶填大量玻璃幕墙,框架空间变位的控制影响到玻璃幕墙的安全使用。

Dalian International Conference Center is a complex spatial structure.The peripheral structure not only encloses the complex surface,but also connects the cantilevered roof and steel platform.According to the demand of the facade,the peripheral structure is designed as curved frame.Some of the surface frames are landing,and most are suspending.Based on the calculation results,the peripheral frame bears considerable vertical and horizontal load under the earthquake,wind and temperature function,ensuring the structural integrity effectively.A large number of architectural modeling fin structures are hung on the external parts of the peripheral frame,and wind load is very obvious.The peripheral frame is filled with glass curtain walls,the control of framework spatial displacement will have an influence on the safe use of glass curtain wall.