珠海横琴总部大厦龙珠自由曲面空间结构设计  

Design of free surface space structure of pearl-shaped building of Zhuhai Hengqin Headquarters Complex

作　　者：尹伟康 王雨洲 徐麟 吕坚锋 YIN Weikang;WANG Yuzhou;XU Lin;LÜJianfeng(RBS Architectural Engineering Design Associates,Guangzhou 510170,China)

机构地区：[1]广州容柏生建筑结构设计事务所(普通合伙),广州510170

出　　处：《建筑结构》2022年第17期127-132,共6页Building Structure

摘　　要：珠海横琴总部大厦龙珠项目为不规则自由曲面空间结构,结构轮廓线采用Grasshopper参数化平台找形确定,结构布置方案采用正交网格形式,由16根放射状分布的弓形主杆及环向的次杆组成。龙珠底部嵌固于横琴总部大厦裙楼屋面层,建筑功能为珠海横琴总部大厦阶梯会议厅。为保证龙珠结构的稳定性,减小其对下部裙楼的不利影响,在龙珠底部设置双环底盘,形成自平衡体系,采用弹簧支座的形式,并采用MIDAS软件对龙珠结构进行计算分析。分析结果表明,弹簧支座+自平衡体系可以减小地震力向下的传递,保证龙珠结构的稳定性,是类似造型结构的理想方案。The pearl-shaped building of Zhuhai Hengqin Headquarters Complex is an irregular free surface space structure. The structural outline was determined by the Grasshopper parametric platform form-finding. The structural layout scheme adopts the form of orthogonal grid, which consists of 16 radially distributed arcuate main rods and circumferential secondary rods. The bottom of the pearl-shaped building is embedded in the roof layer of the podium of the Hengqin Headquarters Complex. The building function is the staircase conference hall of the Zhuhai Hengqin Headquarters Complex. In order to ensure the stability of the pearl-shaped building structure and reduce its adverse impact on the lower podium, a double-ring chassis was set up in the form of a spring support to form a self-balancing system, and the MIDAS software was used to calculate and analyze the structure. The analysis results show that the spring support + self-balancing system can reduce the downward transmission of seismic force and ensure the stability of the pearl-shaped structure, which is an ideal solution for similar facade structures.

关 键 词：珠海横琴总部大厦 空间结构 钢结构 参数化 自平衡体系 弹簧支座 

分 类 号：TU318[建筑科学—结构工程]