- 摘 要
-
(香港華藝設計顧問(深圳)有限公司, 深圳 518031)
[摘要]中海油(深圳)大廈因市政規(guī)劃及建筑方案要求,布置豎向抗側力構件的區(qū)域集中于裙房四角,中部區(qū)域為兩層通高的大跨度空間。鑒于該特殊要求,提出采用型鋼混凝土框架-四角筒-雙向大跨鋼桁架混合結構受力體系。計算分析結果表明,該結構體系是適用于該類建筑功能要求的經濟合理方案。參照現(xiàn)有國內外最新研究成果,對該裙房大跨度鋼結構部分進行了樓板豎向振動舒適度分析,計算結果表明舒適度對其豎向剛度的要求為設計的控制因素。
[關鍵詞]型鋼混凝土框架; 角筒; 雙向大跨鋼桁架; 優(yōu)化設計; 舒適度
中圖分類號:TU318.2 文獻標識碼:A 文章編號:1002-848X(2014)01-0026-06
Exploration on design of a new hybrid structure with two-way long-span steel truss
Zeng Deguang, Zhang Wei, Liu Jun, Wang Xingfa, Yan Lijun
(Hong Kong Hua Yi Designing Consultants (S.Z.) Ltd., Shenzhen 518031, China)
Abstract: According to municipal planning and architectural scheme, vertical components of the CNOOC building are arranged in four corners of the podium to resist lateral force and there are two-storey large-span space in the middle region. A new hybrid structure system was put forward and applied, which consists of steel reinforced concrete frame, four corner-tubes and two-way long-span steel truss. Calculation and analysis results demonstrate that this new hybrid structure system is an economic and reasonable scheme that is suitable to this special building function. Referring to the latest research achievements from home and abroad, response comfort of longspan steel structure of the podium was analyzed and results show that the requirement of the comfort for vertical rigidity is the main factor in design.
Keywords: steel reinforced concrete frame; corner-tube; two-way long-span steel truss; optimal design; comfort
作者簡介:曾德光,碩士,高級工程師,Email:147120350@qq.com。
參考文獻
[1]JGJ 3—2010 高層建筑混凝土結構技術規(guī)程[S].北京:中國建筑工業(yè)出版社,2011.
[2]朱鳴,張志強,柯長華,等.大跨度鋼結構樓蓋豎向振動舒適度的研究[J].建筑結構,2008,38(1):72-76.
[3]ISO. Bases for design of structures serviceability of buildings and pedestrian walkways against vibration[S]. Geneva:International Standardization Organization, 2007.
[4]HUGO BACHMANN, WALTER J AMMANN, FLORIAN DEISCHL, et al. Vibration problems in structures: Practical guidelines[M]. Switzerland: Birkhauser Verlag AG, 1995.
[5]YOUNG P. Improved floor vibration prediction methodologies[R]. London:Arup Vibration Seminar, 2001.
[6]MURRAY T M, ALLEN D E, UNGAR E E. Steel design guide series 11: Floor vibrations due to human activity[S]. Chicago:AISC, 2003.