(1 中国建筑东北设计研究院有限公司深圳设计院，  深圳 518040；2 深圳市地铁集团有限公司，  深圳 518030)

［摘要］汇隆商务中心2A#塔楼的建筑立面沿高度方向采用四段式设计，每一段均有一个中庭，分别位于建筑的不同立面上。为满足中庭通透要求，结构的外框架在中庭高度范围内不能封闭，结构设计时在中庭顶部的外框架设置了局部转换构件；中庭顶部楼层在中庭区域采用钢结构楼盖，其余部位仍采用混凝土楼盖，避免了高支模施工。通过斜撑形式和跨数的分析，结构选用了V撑进行转换，并对V撑节点构造进行了研究。此外还进行了外框架不封闭对结构的影响分析。分析表明，因转换形成的外框架局部不封闭给结构整体性能带来的影响在可控范围内，结构形式合理可靠。

［关键词］结构选型； 外框架不封闭； 局部转换

中图分类号：TU318文献标识码：A文章编号：1002-848X(2019)05-0071-06

Structural design and key technology of tower 2A# of Huilong Commercial Center

Sui Qinghai1， Yang Jianhua2

(1 Shenzhen Design Institute， China Northeast Architectural Design & Research Institute, Shenzhen 518040, China;2 Shenzhen Metro Group Co., Ltd., Shenzhen 518030， China)

Abstract:The building facade of tower 2A# of Huilong Commercial Center is designed as four sections along the direction of height, and each section has an atrium located on different facade of the building. To meet the permeability requirements of the atrium, the outside frame of the structure can not be closed within the height of the atrium, so local transfer components were set up in the outside frame at the top of the atrium. On the top floor of the atrium, the atrium area adopted steel structure floor, and the rest part still adopted concrete floor, which avoided the construction of high support formwork. Transfer structure with V-shaped brace was selected through the analysis of brace form and span number. And the construction of V-shaped brace joints was also studied. In addition, the influence of outside frame not closed on the structure was analyzed. The analysis results show that the influence of outside frame not closed caused by local transfer on the overall performance of the structure is within the controllable range, and the structural form is reasonable and reliable.

Keywords:structure selection; outside frame not closed; local transfer

作者简介：隋庆海，硕士，教授级高级工程师，Email: qhsui@163.com。