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(深圳大學(xué)建筑設(shè)計研究院， 深圳 518060)
［摘要］以沈陽寶能金融中心T1塔樓項目為背景，討論了超大截面矩形鋼管混凝土柱的設(shè)計方法與關(guān)鍵技術(shù)。通過對比分析超大截面矩形鋼管混凝土柱和型鋼混凝土柱的力學(xué)性能，并綜合考慮防火性、施工可行性以及經(jīng)濟(jì)性等因素，論述了本項目巨型柱截面選型的依據(jù)。創(chuàng)新采用鋼管內(nèi)置傳力構(gòu)件的設(shè)計方法解決了鋼管與混凝土的共同工作問題；創(chuàng)新采用T形加勁肋的設(shè)計方法解決了大寬厚比鋼管壁的局部屈曲問題，保證了結(jié)構(gòu)安全度且經(jīng)濟(jì)效益顯著。相關(guān)技術(shù)措施完善了超大截面矩形鋼管混凝土柱的設(shè)計方法，所得結(jié)論對其他超高層建筑巨型鋼管混凝土柱設(shè)計具有較好的借鑒作用。
［關(guān)鍵詞］沈陽寶能金融中心； 鋼管混凝土柱； 共同工作； 局部屈曲； 傳力構(gòu)件； T形加勁肋
中圖分類號：TU973文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2017)05-0015-06
Structural design on super-large concrete-filled rectangular steel tube columns of Shenyang Baoneng Financial Hub
Wu Bing, Fu Xueyi, Meng Meili, Di Bo, Feng Yewen, Huang Chuanning, Liu Ping, Xu Hongshan
(The Institute of Architecture Design and Research, Shenzhen University, Shenzhen 518060, China)
Abstract:Based on the case study of T1 tower of Shenyang Baoneng Financial Hub, the design methods and key techniques of super-large concrete-filled rectangular steel tube columns were put forward. The selection procedure of column-sections for this project was discussed, which takes the mechanical property, fire resistance performance, construction feasibility and economic efficiency into consideration. The cooperative performance of steel tube and concrete was ensured by adopting built\|in transmitting force components. The capacity of anti-buckling of the steel tube with large width\|to\|thickness ratio was improved remarkably due to the existence of the T-shaped stiffener. Through the measures proposed above, the safety of the structure was ensured with obvious economy benefit. The specific problems discussed would contribute to the structural design of super-large concrete-filled rectangular steel tube columns, and could provide good references for the design and construction of similar projects as well.
Keywords:Shenyang Baoneng Financial Hub; concrete\|filled steel tube column； cooperative performance； local buckling； connecting component； T-shaped stiffener
作者簡介：吳兵，教授級高級工程師，副總工程師，Email：wu.bing@aliyun.com
