（广州容柏生建筑结构设计事务所， 广州  510170）

［摘要］基于规范加速度反应谱，推导了多质点结构位移反应和位移角限值的关系。从理论上解释了高地震烈度区结构周期较短的原因，以及控制结构质量刚度比和选择变形能力较强结构体系的重要性。基于某抗震设防烈度8度半区高200m的塔楼，对混合结构体系和全钢结构体系进行分析比较，最终采用由钢框架、内筒钢支撑、Y向立面大斜撑和两个加强层构成的多重抗侧力全钢结构体系。对不同抗侧构件的影响、加强层敏感性、立面大斜撑敏感性、大底盘的影响、关键节点和塔楼桩基抗拉等关键设计问题进行分析，并列出抗震性能目标供类似项目参考。

［关键词］高地震烈度区； 全钢结构体系； 混合结构体系； 位移谱； 层间位移角； 支撑

中图分类号：TU318文献标识码：A文章编号：1002-848X(2020)04-0077-07

Study on design of 200m high steel structural tower building in high seismic fortification intensity region

Chen Yin， Chen Xiaohang， Zhou Ding， Huang Yuangen

（RBS Architectural Engineering Design Associates, Guangzhou 510170, China）

Abstract:Based on the standard acceleration response spectrum, the relationship between displacement response and displacement angle limit value of multi-point structure was derived. The reason of short natural period of the structure in high seismic fortification intensity region was explained theoretically, and the importance of controlling the mass stiffness ratio of structure and selecting the structural system with strong deformation ability was also explained. Based on a tower with a height of 200m in high-intensity seismic region, the hybrid structural system and steel structural system were analyzed and compared. A multi-lateral force resistant steel structural system was finally adopted consisting of steel frame, inner tube steel support, large diagonal brace of Y-direction facade and two strengthening layers. The key design problems were analyzed such as the influence of different lateral force resistant members, the sensitivity of strengthening layer, the sensitivity of large diagonal brace of facade, the influence of large chassis, the key nodes and the tension of tower pile foundation. The seismic performance objectives were listed for reference of similar projects.

Keywords:high seismic fortification intensity region; steel structural system; hybrid structural system; displacement spectrum; inter-story displacement angle; brace