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基于力学概念的超高层结构设计相关问题探讨*
周建龙1,2,安东亚1,2
摘 要

(1 华东建筑设计研究总院, 上海 200002; 2 上海超高层建筑设计工程技术研究中心, 上海 200002)

[摘要]超高层结构设计的相关规定和采取的措施必须遵守基本的力学概念,梳理了超高层结构设计中的关键力学问题,将其分为整体控制、内部协调以及构件设计三个层面,并基于前两个层面的八个角度开展研究和讨论,具体包括整体刚度控制、最小地震力控制、稳定控制、扭转控制四个宏观力学问题,以及外框二道防线、伸臂刚度突变、连梁刚度退化以及楼板开洞影响四个体系内部的协调性问题,剖析了规范相关规定和措施的适用性,介绍了相关研究成果和最新进展,并提出一些新的观点和设计建议。 

[关键词]超高层结构;宏观力学概念;协同受力;抗震性能 

中图分类号:TU398-7 文献标识码:A文章编号:1002-848X(2021)17-0067-11

 

Discussion on related problems of super high-rise structure design based on mechanical concept 

ZHOU  Jianlong1,2,  AN  Dongya1,2 

(1 East China Architectural Design & Research Institute, Shanghai 200002, China; 2 Shanghai EngineeringResearch Center of Super High-rise Building Design, Shanghai 200002, China) 

Abstract: The relevant regulations and measures of super high-rise structure design must comply with the basic mechanical concepts. The key mechanical problems in the design of super high-rise structure were summarized and divided into three levels: overall control, internal coordination and component design. Research and discussion were carried out based on the eight aspects of the first two levels, including four macro-mechanical problems: overall stiffness control, minimum seismic force control, stability control and torsion control, as well as the four questions about the internal coordination of the system, such as the second seismic fortification line of the outer frame, the sudden stiffness change due to the outrigger, the stiffness degradation of the coupling beam and the impact of the floor openings. The applicability of the relevant provisions and measures of the code were analyzed, the relevant research results and the latest progress were introduced, and some new views and design suggestions were put forward. 

Keywords:super high-rise structure; macro-mechanical concept; cooperative force mechanism; seismic performance

 

*上海市自然科学基项目(21ZR1415300),上海市优秀技术带头人计划项目(21XD1430500)。

 

 作者简介:周建龙,全国工程勘察设计大师,教授级高级工程师,Email:jianlong_zhou@ecadi.com。

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