湖南省博物馆新馆改扩建工程结构抗震性能设计

湖南省博物馆新馆采用钢筋混凝土框架-剪力墙结构,屋盖采用空间H型钢桁架结构,屋盖支承在主体结构中的方钢管混凝土柱上。主体结构为具有多塔、连体、楼板不连续等多项平面不规则的超限结构。采用多种计算软件对整体模型和单塔模型进行静力及动力反应分析,找出了结构的抗震薄弱部位和薄弱构件,并采取相应的抗震加强措施。结果表明,本工程具有较好的抗震性能,能够满足抗震设防要求。

Performance-based seismic design of reconstruction and expansion project of new Hunan Provincial Museum

The new Hunan Provincial Museum adopts a reinforced concrete structure with a frame-shear wall structure and the H-shaped steel spatial truss structure on the roof,and the roof is supported by concrete-filled square steel tubular columns in the main structure.The main structure is an out-of-code structure with many plane irregularities such as multi-tower,continuous body and floor discontinuity.The static and dynamic responses of the whole model and the single-tower model were analyzed by using a variety of computational software,and the parts and members with weak seismic resistance capability were found out,and the corresponding seismic strengthening measures were taken.The results show that the project has good seismic performance and can meet the requirements of seismic fortification.