SRC-RC竖向混合结构转换柱构造措施与受力性能
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摘要
通过7个转换柱试件和1个钢筋混凝土柱对比试件的低周反复荷载试验,研究了采用不同构造加强措施转换柱的受力性能.结果表明:7个转换柱试件均产生了剪切破坏,破坏发生在转换柱上部的钢筋混凝土部分;转换柱试件表现出较RC柱试件更好的承载能力;具有不同构造特征转换柱的延性性能与变形能力表现出较大的差异,位移延性系数为1.97～5.99,极限侧移角为1/54～1/21,说明不同构造的加强效果差异较大.当转换柱的侧移角达到1/50时,设置构造加强措施5个转换柱试件的强度退化率均高于0.9,说明转换柱具有较强的抵抗反复荷载的能力,承载力具有良好的稳定性.转换柱试件骨架曲线上各特征点对应的割线刚度高于钢筋混凝土柱,介于钢筋混凝土柱与型钢混凝土柱之间.
The low cyclic reversed loading experiment of seven transfer columns of SRC-RC hybrid structure and one reinforced concrete column was carried out to investigate the mechanical behavior of transfer columns with different details.The seven transfer column specimens were all failed with shear pattern at the reinforced concrete part of upper transfer column,which means that bearing capacity of transfer co-lumn is better than that of reinforced concrete column.Displacement ductility and deformation ability of transfer column are quite different,which vary from 1.97 to 5.99 and from 1/54 to 1/21,respectively.When rotated angle of the transfer column reaches 1/50,the degenerated strength ratios of five specimens with different details are all over 0.9,which illuminates that the capacity of cyclic loading resistance is quite good.Secant stiffness of transfer column is higher than that of reinforced concrete column,which is at the interval of reinforced concrete column and steel reinforced concrete column.
The low cyclic reversed loading experiment of seven transfer columns of SRC-RC hybrid structure and one reinforced concrete column was carried out to investigate the mechanical behavior of transfer columns with different details.The seven transfer column specimens were all failed with shear pattern at the reinforced concrete part of upper transfer column,which means that bearing capacity of transfer co-lumn is better than that of reinforced concrete column.Displacement ductility and deformation ability of transfer column are quite different,which vary from 1.97 to 5.99 and from 1/54 to 1/21,respectively.When rotated angle of the transfer column reaches 1/50,the degenerated strength ratios of five specimens with different details are all over 0.9,which illuminates that the capacity of cyclic loading resistance is quite good.Secant stiffness of transfer column is higher than that of reinforced concrete column,which is at the interval of reinforced concrete column and steel reinforced concrete column.
引文
[1]薛建阳,赵鸿铁.型钢混凝土粘结滑移理论及其工程应用[M].北京:科学出版社,2007.
[2]Xue Jianyang,Zhao Hongtie,Yang Yong,et al.Analysison the behaviors of bond-slip between the shape steeland the concrete by push-out test[J].Journal of Xi'anUniversity of Architecture and Technology:Nature ScienceEdition,2007,39(3):320-326.
[3]Li Junhua,Xue Jianyang,Zhao Hongtie.Experimentalstudy on slip behavior between shaped steel and concretein SRC columns under cyclic reversed loading[J].Jour-nal of Xi'an University of Architecture and Technology:Nature Science Edition,2008,40(3):348-353.
[4]杨勇,郭子雄,聂建国,等.SRC-RC竖向混合结构过渡层抗震设计方法探讨[J].世界地震工程,2005,21(4):60-65.Yang Yong,Guo Zixiong,Nie Jianguo,et al.Study onseismic design of transmission story of SRC-RC verticalhybrid structures[J].World Earthquake Engineering,2005,21(4):60-65.(in Chinese)
[5]杨勇,郭子雄,聂建国.型钢混凝土竖向混合结构过渡层抗震性能研究综述[J].工程抗震与加固改造,2006,28(5):78-86.Yang Yong,Guo Zixiong,Nie Jianguo.Review of studieson seismic design of transition story of steel reinforcedconcrete(SRC)vertical hybrid structures[J].Earth-quake Resistant Engineering and Retrofitting,2006,28(5):78-86.(in Chinese)
[6]杨勇,张志伟,聂建国,等.型钢混凝土竖向混合结构过渡层设计方法[J].福州大学学报:自然科学版,2006,34(3):399-404.Yang Yong,Zhang Zhiwei,Nie Jianguo.Design of transi-tion story of steel reinforced concrete(SRC)vertical hy-brid structures[J].Journal of Fuzhou University:Natu-ral Science,2006,34(3):399-404.(in Chinese)
[7]西村泰志,岡本昌泰,馬場望.RC部材とSRC部材が直列的に結合される接合部の応カ伝達(その2)[C]∥日本建築学会大会学術講演梗概集.中国:日本建築学会,1999:1063-1064.
[8]岡本昌泰,馬場望,西村泰志.RC部材とSRC部材が直列的に結合される接合部の応カ伝達(その3)[C]∥日本建築学会大会学術講演梗概集.中国:日本建築学会,1999:1065-1066.
[9]鈴木英之,西原寛,松崎育弘.SRC造からRC造へ構造形式が切り替わる柱のせん断性状[C]∥日本建築学会大会学術講演梗概集.中国:日本建築学会,1999:1069-1070.
[10]今野修,今泉隆之,山本憲一郎,等.超高層建筑物における下層階へのSRC構造適用に関する実験的研究,その1SRC柱の靭性性能に関する実験計画[C]∥日本建築学会大会学術講演梗概集.九州:日本建築学会,1998:1029-1030.
[2]Xue Jianyang,Zhao Hongtie,Yang Yong,et al.Analysison the behaviors of bond-slip between the shape steeland the concrete by push-out test[J].Journal of Xi'anUniversity of Architecture and Technology:Nature ScienceEdition,2007,39(3):320-326.
[3]Li Junhua,Xue Jianyang,Zhao Hongtie.Experimentalstudy on slip behavior between shaped steel and concretein SRC columns under cyclic reversed loading[J].Jour-nal of Xi'an University of Architecture and Technology:Nature Science Edition,2008,40(3):348-353.
[4]杨勇,郭子雄,聂建国,等.SRC-RC竖向混合结构过渡层抗震设计方法探讨[J].世界地震工程,2005,21(4):60-65.Yang Yong,Guo Zixiong,Nie Jianguo,et al.Study onseismic design of transmission story of SRC-RC verticalhybrid structures[J].World Earthquake Engineering,2005,21(4):60-65.(in Chinese)
[5]杨勇,郭子雄,聂建国.型钢混凝土竖向混合结构过渡层抗震性能研究综述[J].工程抗震与加固改造,2006,28(5):78-86.Yang Yong,Guo Zixiong,Nie Jianguo.Review of studieson seismic design of transition story of steel reinforcedconcrete(SRC)vertical hybrid structures[J].Earth-quake Resistant Engineering and Retrofitting,2006,28(5):78-86.(in Chinese)
[6]杨勇,张志伟,聂建国,等.型钢混凝土竖向混合结构过渡层设计方法[J].福州大学学报:自然科学版,2006,34(3):399-404.Yang Yong,Zhang Zhiwei,Nie Jianguo.Design of transi-tion story of steel reinforced concrete(SRC)vertical hy-brid structures[J].Journal of Fuzhou University:Natu-ral Science,2006,34(3):399-404.(in Chinese)
[7]西村泰志,岡本昌泰,馬場望.RC部材とSRC部材が直列的に結合される接合部の応カ伝達(その2)[C]∥日本建築学会大会学術講演梗概集.中国:日本建築学会,1999:1063-1064.
[8]岡本昌泰,馬場望,西村泰志.RC部材とSRC部材が直列的に結合される接合部の応カ伝達(その3)[C]∥日本建築学会大会学術講演梗概集.中国:日本建築学会,1999:1065-1066.
[9]鈴木英之,西原寛,松崎育弘.SRC造からRC造へ構造形式が切り替わる柱のせん断性状[C]∥日本建築学会大会学術講演梗概集.中国:日本建築学会,1999:1069-1070.
[10]今野修,今泉隆之,山本憲一郎,等.超高層建筑物における下層階へのSRC構造適用に関する実験的研究,その1SRC柱の靭性性能に関する実験計画[C]∥日本建築学会大会学術講演梗概集.九州:日本建築学会,1998:1029-1030.
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