- 摘 要
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(1 華東建筑設(shè)計研究總院, 上海 200002; 2 上海超高層建筑設(shè)計工程技術(shù)研究中心, 上海 200002)
[摘要]超高層結(jié)構(gòu)設(shè)計的相關(guān)規(guī)定和采取的措施必須遵守基本的力學概念,梳理了超高層結(jié)構(gòu)設(shè)計中的關(guān)鍵力學問題,將其分為整體控制、內(nèi)部協(xié)調(diào)以及構(gòu)件設(shè)計三個層面,并基于前兩個層面的八個角度開展研究和討論,具體包括整體剛度控制、最小地震力控制、穩(wěn)定控制、扭轉(zhuǎn)控制四個宏觀力學問題,以及外框二道防線、伸臂剛度突變、連梁剛度退化以及樓板開洞影響四個體系內(nèi)部的協(xié)調(diào)性問題,剖析了規(guī)范相關(guān)規(guī)定和措施的適用性,介紹了相關(guān)研究成果和最新進展,并提出一些新的觀點和設(shè)計建議。
[關(guān)鍵詞]超高層結(jié)構(gòu);宏觀力學概念;協(xié)同受力;抗震性能
中圖分類號:TU398-7 文獻標識碼:A文章編號: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
*上海市自然科學基項目(21ZR1415300),上海市優(yōu)秀技術(shù)帶頭人計劃項目(21XD1430500)。
作者簡介:周建龍,全國工程勘察設(shè)計大師,教授級高級工程師,Email:jianlong_zhou@ecadi.com。