(华南理工大学建筑设计研究院有限公司， 广州 510641)

［摘要］贵阳未来方舟F3组团T1塔楼结构总高度为287-6m，出屋面造型钢桅塔高度为61-5m，算至塔顶建筑高度为349-1m，采用钢筋混凝土框架-核心筒结构体系。通过工程实例分析探讨以下问题：对框架-核心筒结构框架柱不同柱距、不同柱截面形式，从经济性、实用性和施工工艺角度进行比选，以确定最优截面形式；楼层受剪承载力比计算中，框架柱抗剪承载力由框架柱两端的极限弯矩之和除以层高的规定，由于未考虑抗侧力结构间的变形协调及梁端的抗弯承载力，对不同工程有可能出现误判；超高层建筑出屋面高耸构筑物由于质量和刚度相对较小，对主体结构影响不大，但构筑物本身会有明显的“鞭梢效应”，高振型对其也有不同程度的激励；按抗震能力的等能量原理，适当放松核心筒剪力墙轴压比，优化剪力墙截面厚度，仍可保证结构的安全性；通过考虑混凝土徐变的施工模拟分析，按墙刚度折减系数0-6、分层刚度分层加载的施工模拟计算方法可满足工程设计精度的要求。

［关键词］框架-核心筒结构； 框架柱选型； 楼层受剪承载力比； 出屋面桅塔； 截面厚度优化； 弹塑性分析； 施工模拟

中图分类号：TU375文献标识码：A文章编号：1002-848X(2019)20-0027-07

Selection of frame columns and analysis of several problems in structural design for T1 Tower Building of F3 Block of Guiyang Future Ark

Ding Shaorun， Chen Tianming， Yang Ziyue， Sun Xiaoming

(Architectural Design & Research Institute of SCUT Co.， Ltd.， Guangzhou 510641， China)

Abstract:The total height of the T1 Tower Building of the F3 Block of Guiyang Future Ark is 287-6m, and the height of the steel roofing mast is 61-5m. The architectural height to the tower top is 349-1m. The reinforced concrete frame-corewall structural system was adopted. Through the analysis of engineering examples, the following issues were discussed. From the angles of economy, practicability and construction technology, the frame columns of frame-corewall structure with different column spacing and section forms were compared to determine the optimal section form. In the calculation of floor shear capacity ratio, the code stipulates that the shear capacity of frame columns is divided by the ultimate bending moment at both ends of frame columns by the height of story. Misjudgments may occur for different projects due to the neglect of deformation coordination between lateral resistant structures and the flexural capacity of beam ends. Due to the relatively small mass and stiffness, the super-tall buildings with high roof have little influence on the main structure, but the structure itself has obvious “whip effect”, and the high vibration mode also stimulates them to varying degrees. According to the principle of equal energy of seismic capacity, the safety of the structure can still be guaranteed by relaxing the axial compression ratio of the corewall shear wall and optimizing the thickness of the section of the shear wall. By considering the construction simulation analysis of concrete creep, the requirements of engineering design accuracy can be met by using the construction simulation calculation method based on the reduction coefficient of wall stiffness 0-6 and layered-stiffness layered-loading.

Keywords:frame-corewall structure; selection of frame column; floor shear capacity ratio; roofing mast; optimization of section thickness; elastoplastic analysis; construction simulation

作者简介：丁少润，学士，高级工程师，一级注册结构工程师，Email:DSR0906@qq.com。