龙华文体中心结构设计

Structural design of Longhua Cultural and Sports Center

龙华文体中心项目位于深圳市龙华区,建筑高度23.85m,为多层钢筋混凝土框架结构,有大跨度钢网架结构屋盖。介绍了基础设计和主体结构设计的情况,由于坡道和2层(屋面)大平台横跨各个楼层,使得水平力具有多个向下传递的路径,各楼层分界不明显,与常规项目不同。理论分析表明,层的概念不影响结构受力,仅数据指标的宏观表现形式不同,采用三维空间结构计算软件可合理计算结构反应并进行设计。常规项目按层模型去统计指标数据来衡量整体结构水平和竖向的规则性,不适用于本工程。采用基于性能的设计方法,对构件进行小震、中震、大震的性能目标复核,并对超长结构进行技术分析和构造加强,经多软件复核对比,构件满足各工况下的设计目标要求。

Longhua Cultural and Sports Center is located in Longhua district,Shenzhen,with a building height of 23.85 m.It is a multi-story reinforced concrete frame structure with a large-span steel grid structure roof.The foundation design and main structure design were introduced.Because of the ramp and 2-storey(roof) large platform span each floor,there are many paths for the downward transmission of the horizontal forces,and the boundary of each floor is not obvious,which is different from the conventional project.Theoretical analysis shows that the concept of floor don’t affect the internal force of the structure,but the macro manifestations of data indicators are different.The structural response could be reasonably calculated and designed by using three-dimensional spatial structure calculation software.Conventional projects measure the horizontal and vertical regularity of the overall structure according to the statistical index data of the floor model,which is not applicable to the project.The performance-based design method was adopted to recheck the performance objectives of components under small earthquake,medium earthquake and large earthquake,and carried out technical analysis and structural strengthening for super long structures.Through multi software recheck and comparison,the components met the design objectives under various working conditions.