北京2008年奧運會國家體育館主體結(jié)構(gòu)設(shè)計
馮陽,覃陽,甘明,柯長華,陳金科
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(1 北京市建筑設(shè)計研究院 100045;2 北京城建設(shè)計研究總院 100037)[提要]對大跨度超大空間體育場館抗震體系設(shè)計提出了新的布局和思路,將型鋼混凝土框架 鋼支撐和鋼筋混凝土框架剪力墻混合結(jié)構(gòu)體系運用到國家體育館工程中,并就這種新結(jié)構(gòu)布局的特點和產(chǎn)生的問題進(jìn)行分析。比較了不同鋼支撐布置方式對型鋼混凝土框架與鋼支撐體系周期、變形及內(nèi)力的影響,對型鋼混凝土梁、柱節(jié)點區(qū)因鋼支撐的斜交產(chǎn)生的三向交叉復(fù)雜節(jié)點進(jìn)行分析,提出解決方案并給出了結(jié)構(gòu)關(guān)鍵節(jié)點的構(gòu)造。[關(guān)鍵詞]國家體育館;型鋼混凝土框架;鋼支撐;混合結(jié)構(gòu);復(fù)雜型鋼混凝土節(jié)點設(shè)計Design of Main Structure in National Indoor Stadium of Beijing 2008 Olympic Games/Feng Yang1, Qin Yang1, Gan Ming1, Ke Changhua1, Chen Jinke2 (1 Beijing Institute of Architectural Design, Beijing 100045, China; 2 Beijing Urban Engineering Design & Research Institute, Beijing 100037, China)Abstract:The new layout and ideas of seismic system design of the large-span space gymnasium was brought forward. The composite structure system of formed steel reinforced concrete frame steel bracing and reinforced concrete frame shear wall was used in the seismic design of National Gymnasium, and some structural layout features and problems of this new structure were analyzed. The impact of different steel bracing layout on period, deformation and internal forces of formed steel reinforced concrete frame steel bracing system was compared. Three dimensional cross complex node produced by the oblique conjoining of steel bracing in formed steel reinforced concrete beam and column node area was analyzed, and the problem solving project and constitution of key nodes were put forward.Keywords: National Indoor Stadium; formed steel concrete frame-steel bracing; composite structure; node design of complex formed steel reinforced concrete