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(1 中國建筑科學(xué)研究院，北京 100013； 2 華森建筑與工程設(shè)計顧問有限公司，深圳 518054)
［摘要］京基金融中心采用的巨型鋼管混凝土柱，截面尺寸巨大、形式復(fù)雜，其受力性能、截面剛度和承載力計算方法與普通鋼管混凝土柱不同。對結(jié)構(gòu)底部角柱進行了縮尺模型的低周往復(fù)荷載試驗與有限元分析，研究了其承載力、剛度、延性和滯回耗能能力以及破壞特征。試驗結(jié)果表明：在豎向荷載作用下，鋼管與混凝土、鋼筋能夠協(xié)同工作；在壓彎往復(fù)荷載作用下，柱的耗能能力較強，延性較好。根據(jù)研究結(jié)果，對巨型鋼管混凝土柱剛度和承載力的設(shè)計計算方法提出了建議。
［關(guān)鍵詞］巨型鋼管混凝土柱；承載力；剛度；抗震性能；設(shè)計方法
Experiment study on giant concrete filled steel tube columns of Kingkey Center
Yang Xiaomeng1, Tian Chunyu1, Wang Cuikun1, Cao Weiliang2
(1 China Academy of Building Research, Beijing 100013, China;
2 Huasen Architectural & Engineering Designing Consultant Ltd., Shenzhen 518054, China)
Abstract:Giant concrete filled steel tube (CFST) columns with huge sections and complex shapes were adopted in Kingkey Center. Mechanic properties, calculation methods of section stiffness and bearing capacity might be different from ordinary CFST columns. Experiment study and finite element analysis were carried out on reduced scale model of huge CFST columns. The bearing capacity, stiffness, ductility, hysteretic energy dissipating capacity and failure pattern of columns were studied. The results show that steel tube, concrete and steel bars are working together under vertical load. Under axial and cyclic load, the columns perform strong energy dissipating capacity and ductility. Based on the research, suggestions on the design method of stiffness and bearing capacity of giant CFST columns were proposed.
Keywords:giant CFST columns; bearing capacity; stiffness; seismic performance; design method
作者簡介：楊曉蒙，碩士，Email:yxm04thu@163.com。的。
參考文獻
［1］ 呂西林，陸偉東. 反復(fù)荷載作用下方鋼管混凝土柱的抗震性能試驗研究［J
