配置強格構(gòu)式型鋼混凝土柱的抗震性能試驗研究
趙仕興1,曾廣吉2,朱洪正2,傅劍平2
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趙仕興1,曾廣吉2,朱洪正2,傅劍平2(1 四川省建筑設(shè)計院, 成都 610017;2 重慶大學山地城鎮(zhèn)建設(shè)與新技術(shù)教育部重點實驗室, 重慶 400045)[摘要]通過縮尺比為1/5的5個大跨高比配置強格構(gòu)式型鋼混凝土柱和1個實腹式型鋼混凝土柱在水平低周反復(fù)荷載作用下的試驗,獲得了各試件發(fā)生正截面破壞的荷載位移滯回曲線;分析了各試件的延性、極限位移角及耗能性能。結(jié)果表明,帶綴板的強格構(gòu)式型鋼對核心區(qū)混凝土有更強的約束作用,所有試件破壞都表現(xiàn)為型鋼屈服、混凝土壓潰,表現(xiàn)出良好的延性。得出了軸壓比、強格構(gòu)式型鋼布置形式對試件抗震性能的影響。[關(guān)鍵詞]強格構(gòu)式型鋼混凝土; 低周反復(fù)荷載; 抗震性能; 軸壓比中圖分類號:TU398+.9文獻標識碼:A文章編號:1002848X(2013)12006205Experimental study on seismic performance of strong latticed steel reinforced concrete columnZhao Shixing1, Zeng Guangji2, Zhu Hongzheng2, Fu Jianping2(1 Sichuan Provincial Architectural Design Institute, Chengdu 610017, China; 2 Key Laboratory of New Technology forConstruction of Cities in Mountain Area of Chongqing University, Chongqing 400045, China)Abstract:At the scale ratio of 1/5, five strong latticed steel reinforced concrete columns with big spandepth ratio and one fullweb steel reinforced concrete column were tested subjected to horizontal low cyclic loading. In the case of cross section damage, the loaddisplacement hysteresis curves of each specimen were obtained. The ductility, limiting displacement drift and energy dissipation ability of specimens were analyzed. Results show that the strong latticed steel with batten plates has strong restriction effect on the core concrete and that the destruction features of the specimens are yielding of steel and crushing of the concrete, which exhibits good ductility. The effects of axial compression ratio and strong latticed steel arrangements on seismic performance of the specimens were obtained.Keywords:strong latticed steel reinforced concrete; low cyclic loading; seismic performance; axial compression ratio作者簡介:趙仕興,工程碩士,副總工程師,英國注冊工程師,Email:zhaosx1@163.com。參考文獻[1]日本建筑學會. 鐵骨鐵筋コンクリート構(gòu)造計算標準[S]. 2版. 日本建筑學會, 1963.[2]日本建筑學會. 鐵骨鐵筋コンクリート構(gòu)造計算標準·同解說[S]. 日本建筑學會, 1975.[3]臧安明,楊宏強,陳風揚,等. 偏心受壓勁性鋼筋砼(外包砼格構(gòu)柱)的研究與設(shè)計[C]//第二屆學術(shù)討論會論文集,1990:593599.[4]石啟印.空腹式型鋼砼柱的抗震性能研究[J]. 陜西工學院學報,1996,12(1):8490.[5]徐堅如.勁性鋼筋混凝土(SRC)結(jié)構(gòu)研究[J]. 鐵道標準設(shè)計,1996(1):3638.[6]四川省建筑設(shè)計院. 成都珠江國際城A4棟格構(gòu)式型鋼混凝土柱抗震性能試驗及模擬分析研究報告[R]. 成都:四川省建筑設(shè)計院, 2012.[7]YB 9082—2006鋼骨混凝土結(jié)構(gòu)設(shè)計規(guī)程[S].北京:冶金工業(yè)出版社, 2006.[8]JGJ 138—2001型鋼混凝土組合結(jié)構(gòu)技術(shù)規(guī)程[S].北京:中國建筑工業(yè)出版社,2001.