鲁-台经贸会展中心超限工程抗震设计

Seismic design on Shandong-Taiwan Exhibition Center object in Weifang city

鲁台经贸会展中心主体采用框架-剪力墙结构,包括展览区、商业区、共享大厅等多个功能区。各功能区通过蒙皮网壳连接形成整体。钢结构与混凝土结构相互交错,涉及的钢结构有桁架、单层网壳、双层网壳等多种形式。整体结构是一个复杂的超限工程。采用基于性能的设计方法,对重要构件提出专门的性能目标。对展厅大跨度楼层钢结构进行了活荷载不利布置分析。重视钢结构的稳定设计,通过多种构造措施和计算分析保证了钢结构的整体稳定。对整体结构进行了动力弹塑性分析,考察了结构的塑性发展程度和变形能力,并对薄弱构件进行了加强。设计结果表明,结构抗震性能良好,结构体系安全可行。

The frame-shear wall structure was adopted in Shandong-Taiwan Exhibition Center in Weifang city,which includes exhibition areas,commercial areas,public hall,and other functional areas.All functional areas are covered under latticed skin shell.The steel structures include the steel truss,single-layer shell and double-layer shell.The structure is complicated beyond the scope of Chinese Code for seismic design of buildings.Using performance-based design method,the performance objectives of the important components were proposed.The large-span steel truss was analyzed,considering unfavorable live load distribution.The stability design of steel structure was paid attention to,and a variety of structural measures and computational analysis were taken to ensure the stability of steel structure.The dynamic elastic-plastic analysis were executed.The structural plastic performance and deformation were evaluated,and the weak component was enhanced.The results show that the performance of the structure is good,and the structure system is safe and reliable.