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(廣州容柏生建筑結(jié)構(gòu)設(shè)計事務(wù)所上海分所, 上海 200060)
[摘要]根據(jù)建筑平面特點與外型要求,結(jié)構(gòu)內(nèi)筒剪力墻Y向有效寬度較小,內(nèi)筒高寬比為23。為避免設(shè)置結(jié)構(gòu)加強層,并綜合考慮各種結(jié)構(gòu)方案的抗側(cè)剛度效率及工程經(jīng)濟性問題,最終采用了帶內(nèi)柱的框架-剪力墻結(jié)構(gòu)。通過內(nèi)柱的設(shè)置及剪力墻的集中布置,有效增加了結(jié)構(gòu)側(cè)向剛度;同時由彈性分析可知結(jié)構(gòu)局部剛度過大,為此進行了大震彈塑性分析,分析結(jié)果表明:結(jié)構(gòu)受力合理,內(nèi)柱與剪力墻筒體間框架梁進行設(shè)計加強,可滿足相關(guān)規(guī)范要求。
[關(guān)鍵詞]超高層建筑; 框架-剪力墻; 彈塑性受力機理分析; 側(cè)向剛度
中圖分類號:TU318文獻標識碼:A文章編號:1002-848X(2020)04-0073-04
Structural system selection and design of a 250m high super high\|rise apartment tower
Tian Xin, Zhang Wenhua, Zhao Qing, Cui Shuai
(RBS Architecture Engineering Design Associates Shanghai Office, Shanghai 200060, China)
Abstract:According to the plane characteristics and exterior requirements of the building, the effective width of the internal tube shear wall in Y direction was smaller, and the height width ratio of the internal tube was 23. The frame shear wall structure with internal columns was adopted to avoid setting up the structural reinforcement layer and to consider the efficiency of lateral stiffness and engineering economy of various structural schemes. Through the arrangement of the inner column and the concentrated arrangement of the shear wall, the lateral rigidity of the structure was effectively increased; at the same time, the local rigidity of the structure was too large according to the elastic analysis, so the elastic-plastic analysis was carried out under the rare earthquake. The analysis results show that the structural stress is reasonable, and the frame beam between the inner column and the tube shear wall was designed and strengthened, which met the requirements of relevant specifications.
Keywords:super high-rise building; frame-shear wall structure; elastic-plastic mechanism analysis; lateral rigidity
作者簡介:田新,碩士,Email: tianxin@gzrbs.com。