- 摘 要
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(南京長江都市建筑設計股份有限公司， 南京 210006)
［摘要］對某帶伸臂加強層的型鋼混凝土框架-核心筒超高層結構進行了動力彈塑性時程分析及相關振動臺試驗，研究該種結構體系的抗震性能及構件損傷情況。研究表明：加強層有效地加強了結構的抗側剛度，大震作用下結構的層間位移角均能滿足1/100的規(guī)范限值要求；加強層會引起結構局部剛度、承載力突變，有限元分析與試驗結果均表明結構損傷較多出現(xiàn)在加強層附近范圍以及結構的底部幾層，但損傷可以控制在可接受的范圍內；試驗研究表明加強層斜撐破壞主要集中在節(jié)點區(qū)域，斜撐對結構剛度影響很大，應重點加強斜撐節(jié)點部位的設計。
［關鍵詞］超高層結構； 型鋼混凝土框架核心筒； 加強層； 振動臺試驗； 抗震性能
中圖分類號：TU311-3文獻標識碼：A文章編號：1002-848X(2020)15-0113-05
Performance analysis and experimental research of a super high-rise steel reinforced concrete frame-corewall structure with outriggers in strengthened layers
JIANG Han, ZHAO Xuefei
(Nanjing Yangtze River Urban Architectural Design Co., Ltd., Nanjing 210006， China)
Abstract:The dynamic elastoplastic time-hilayer analysis and related shaking table tests were carried out for a super high-rise steel reinforced concrete frame-corewall structure with outriggers in strengthened layers, to study the seismic performance and damage of the structural system. The results show that the strengthened layer can effectively strengthen the lateral stiffness of the structure, and the displacement angle of the structure can meet the requirements of 1/100 of the code limit value under the rare earthquake action. The strengthened layer can cause the local stiffness and bearing capacity of the structure to change abruptly, and the finite element analysis and test results show that the structural damage mostly occurs in the vicinity of the strengthened layer and the bottom layers of the structure, but the damage can be controlled in the acceptable range. The experimental study shows that the main failure of diagonal bracing is in the joint area, and the diagonal bracing has a great influence on the structural stiffness, so the design of the joint should be strengthened.
Keywords:super high-rise structure; steel reinforced concrete frame-corewall structure; strengthened layer; shaking table test; seismic performance
作者簡介：江韓，博士，研究員級高級工程師，Email:892431362@qq.com;通訊作者：趙學斐，博士，工程師，Email:zhaoxuefeinjut@163.com。
