分散式鋼棒混凝土柱抗震性能對比試驗研究
趙松林1，彭水力1，皮音培2，周定1，任珉2，鄧艷青1，王燕珺1
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趙松林1，彭水力1，皮音培2，周定1，任珉2，鄧艷青1，王燕珺1（1 廣州市設計院，廣州510620；2 廣州大學土木工程學院，廣州510000）［摘要］鋼骨混凝土柱具有良好的抗震性能，但其在高層建筑結構中施工復雜，為此，基于核心區(qū)鋼骨含鋼量相同的原則提出了新型分散式鋼棒混凝土柱。為研究分散式鋼棒混凝土柱的抗震性能，對2組各3個不同核心材料鋼骨混凝土柱在指定試驗軸壓比下進行了水平低周反復荷載試驗。通過試驗得到的荷載-位移曲線，對比分析了不同核心材料的鋼骨混凝土柱耗能和骨架曲線的差異。初步試驗結果表明分散式鋼棒核心鋼骨混凝土柱的抗震性能良好。［關鍵詞］分散式鋼棒混凝土柱；低周反復荷載；抗震性能；滯回曲線中圖分類號：TU398.9文獻標識碼：A文章編號：1002-848X(2012)06-0095-04Seismic performance study on steel reinforced concrete columns with distributed steel bars by contrast experimentZhao Songlin1, Peng Shuili1, Pi Yinpei2, Zhou Ding1, Ren Min2, Deng Yanqing1, Wang Yanjun1(1 Guangzhou Design Institute, Guangzhou 510620, China;2 School of Civil Engineering, Guangzhou University, Guangzhou 510000, China)Abstract: Steel reinforced concrete (SRC) columns have good seismic performance, which are difficult to construct on high-rise buildings. Based on the same steel contain rate of the core area, a new type SRC columns with distributed steel bars was proposed. In order to study the seismic performance of this new type of columns, experiments on two groups (each group has three specimens) SRC columns with different material in the core area on specific axial compression ratio under low cyclic loads were carried out. Based on experimental study, the loading-displacement hysteretic curves were measured, and the behavior of energy dissipation and skeleton curves of six specimens were analyzed. It was observed from the results that SRC columns with distributed steel bars have good seismic performance.Keywords: steel reinforced concrete column with distributed steel bar; low cyclic load; seismic performance; hysteretic curve作者簡介：趙松林，教授級高級工程師，一級注冊結構工程師，Email: zhaosonglin @gzdi.com.參考文獻［1］胡慶昌.1995年1月17日日本阪神大地震中神戶市房屋結構震害簡介［J］.建筑結構學報,1995,16（3）：10-12.［2］李宏男,趙衍剛. 日本新潟縣中越大地震震害調(diào)查及分析［J］.自然災害學報,2005,14(1):165-174.［3］卜楠楠. 國貿(mào)三期鋼骨混凝土組合結構施工技術［J］.施工技術,2010,39(10):89-92.［4］趙松林，彭水力，周定. 分散式鋼棒混凝土柱:中國，ZL201020277937.0 ［P］. 2011-3-30.［5］趙松林，彭水力，周定. 一種土木工程用分散式鋼棒連接結構:中國，ZL201020277939.X ［P］.2011-3-30.［6］JGJ 138—2001型鋼混凝土組合結構技術規(guī)程［S］. 北京：中國建筑工業(yè)出版社，2002.［7］GB 50010—2010 混凝土結構設計規(guī)范［S］. 北京：中國建筑工業(yè)出版社,2011.［8］ZHENG WENZHONG, JI JING. Dynamic performance of angle steel concrete columns under low cyclic loadingI: experimental study［J］. Earthquake Engineering and Engineering Vibration,2008,7(1):67-75.
