轴压比对SRC-RC转换柱抗震性能影响的试验研究
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摘要
轴压力是影响构件抗震性能的主要因素之一,通过14根型钢混凝土-钢筋混凝土(steel reinforced concrete-reinforced concrete,SRC-RC)转换柱试件的低周反复荷载试验分析了轴压比对试件基本力学行为的影响.虽然较大的轴压力能提高试件在反复荷载下的承载能力和初始侧移刚度,但同时降低了试件的极限变形能力.轴压比较大试件的滞回环面积较小,耗能能力较差.对于型钢延伸高度较大的试件,较大的轴压力使强度衰减现象在加载后期越来越显著,承载力的稳定性在较短的时间内丧失.较大的轴压力导致试件的位移延性系数减小、屈服后变形能力降低.轴压比对位移延性的影响与试件的构造特征存在耦合关系.
Axial compressive ratio has significant effects on seismic performance of steel reinforced concrete-reinforced concrete(SRC-RC) transfer columns.Experiments of 14 transfer columns under low cyclic shear were carried out to analyze the mechanical behavior of SRC-RC transfer columns with different axial compression.Axial compressive force can not only promote the strength under cyclic shear and stiffness at initial stage but also diminish the rotated ability of cross section and ultimate deformation ability of specimens.High axial compressive ratio makes the area of hysteretic loops decrease and energy dissipation ability weakness.For the specimens with long extension length of shape steel,strength degenerate rapidly specially at last period of loading,and the stability of strength loses soon.Increment of axial compressive ratio also leads to the drop down of displacement ductility and postpeak behavior.The variation of displacement ductility with axial compressive ratio has relationship with the configuration and steel arrangement of specimens.
Axial compressive ratio has significant effects on seismic performance of steel reinforced concrete-reinforced concrete(SRC-RC) transfer columns.Experiments of 14 transfer columns under low cyclic shear were carried out to analyze the mechanical behavior of SRC-RC transfer columns with different axial compression.Axial compressive force can not only promote the strength under cyclic shear and stiffness at initial stage but also diminish the rotated ability of cross section and ultimate deformation ability of specimens.High axial compressive ratio makes the area of hysteretic loops decrease and energy dissipation ability weakness.For the specimens with long extension length of shape steel,strength degenerate rapidly specially at last period of loading,and the stability of strength loses soon.Increment of axial compressive ratio also leads to the drop down of displacement ductility and postpeak behavior.The variation of displacement ductility with axial compressive ratio has relationship with the configuration and steel arrangement of specimens.
引文
[1]赵鸿铁.钢与混凝土组合结构[M].北京:科学出版社,2001.
[2]薛建阳.钢与混凝土组合结构[M].武汉:华中科技大学出版社,2007.
[3]李俊华,王新堂,薛建阳,等.低周反复荷载下型钢高强混凝土柱受力性能试验研究[J].土木工程学报,2007,40(7):11-18.LI Jun-hua,WANG Xin-tang,XUE Jian-yang,et al.Experimental study on the performance of steel reinforcedhigh-strength concrete columns under low cyclic reversedloading[J].China Civil Engineering Journal,2007,40(7):11-18.(in Chinese)
[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 Zi-xiong,NIE Jian-guo,et al.Studyon seismic design of transmission story of SRC-RC verticalhybrid structures[J].World Earthquake Engineering,2005,21(4):60-65.(in Chinese)
[5]杨勇,张志伟,聂建国.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 Zhi-wei,NIE Jian-guo.Design oftransition story of steel reinforced concrete(SRC)verticalhybrid structures[J].Journal of Fuzhou University:Natural Science,2006,34(3):399-404.(in Chinese)
[6]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]∥日本建筑学大会学術講演梗概集,九州,9,1998:1029-1030.
[7]鈴木英之,西原寛,松崎育弘.柱高さの途中まで存在する鉄骨がRC柱のせん断性状に及ぼす影響[J].コンクリ一ト工学年次論文報告集,1999,21(3):577-582.SUZUKI H,NISHIHARA H,MATSUZAKI Y.Shearperformance of RC columns effected by the shape steeltruncated in the midway of the columns[J].Proceedings ofthe Japan Concrete Institute,1999,21(3):577-582.(inJapanese)
[8]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,1999:1069-1070.
[9]山口美有紀,木村潤一,鄭真安,等.SRC-RC混合柱部材の骨格曲線モデル[C]∥日本建筑学大会学術講演梗概集,北海道,8,2004:1177-1178.
[10]伍凯,薛建阳,赵鸿铁.短柱型破坏的型钢混凝土-混凝土转换柱剪切受力性能研究[J].工业建筑,2010,40(11):51-54.WU Kai,XUE Jian-yang,ZHAO Hong-tie.Study onshear performance of SRC-RC transfer column with shortcolumn failure pattern[J].Industrial Construction,2010,40(11):51-54.(in Chinese)
[11]薛建阳,伍凯,赵鸿铁,等.SRC-RC转换柱抗震性能试验研究[J].建筑结构学报,2010,31(11):102-110.XUE Jian-yang,WU Kai,ZHAO Hong-tie,et al.Experimental study on seismic behavior of SRC-RCtransfer column[J].Journal of Building Structures,2010,31(11):102-110.(in Chinese)
[12]中国建筑科学研究院.GB50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[13]戴国莹,王亚勇.房屋建筑抗震设计[M].北京:中国建筑工业出版社,2005.
[2]薛建阳.钢与混凝土组合结构[M].武汉:华中科技大学出版社,2007.
[3]李俊华,王新堂,薛建阳,等.低周反复荷载下型钢高强混凝土柱受力性能试验研究[J].土木工程学报,2007,40(7):11-18.LI Jun-hua,WANG Xin-tang,XUE Jian-yang,et al.Experimental study on the performance of steel reinforcedhigh-strength concrete columns under low cyclic reversedloading[J].China Civil Engineering Journal,2007,40(7):11-18.(in Chinese)
[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 Zi-xiong,NIE Jian-guo,et al.Studyon seismic design of transmission story of SRC-RC verticalhybrid structures[J].World Earthquake Engineering,2005,21(4):60-65.(in Chinese)
[5]杨勇,张志伟,聂建国.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 Zhi-wei,NIE Jian-guo.Design oftransition story of steel reinforced concrete(SRC)verticalhybrid structures[J].Journal of Fuzhou University:Natural Science,2006,34(3):399-404.(in Chinese)
[6]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]∥日本建筑学大会学術講演梗概集,九州,9,1998:1029-1030.
[7]鈴木英之,西原寛,松崎育弘.柱高さの途中まで存在する鉄骨がRC柱のせん断性状に及ぼす影響[J].コンクリ一ト工学年次論文報告集,1999,21(3):577-582.SUZUKI H,NISHIHARA H,MATSUZAKI Y.Shearperformance of RC columns effected by the shape steeltruncated in the midway of the columns[J].Proceedings ofthe Japan Concrete Institute,1999,21(3):577-582.(inJapanese)
[8]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,1999:1069-1070.
[9]山口美有紀,木村潤一,鄭真安,等.SRC-RC混合柱部材の骨格曲線モデル[C]∥日本建筑学大会学術講演梗概集,北海道,8,2004:1177-1178.
[10]伍凯,薛建阳,赵鸿铁.短柱型破坏的型钢混凝土-混凝土转换柱剪切受力性能研究[J].工业建筑,2010,40(11):51-54.WU Kai,XUE Jian-yang,ZHAO Hong-tie.Study onshear performance of SRC-RC transfer column with shortcolumn failure pattern[J].Industrial Construction,2010,40(11):51-54.(in Chinese)
[11]薛建阳,伍凯,赵鸿铁,等.SRC-RC转换柱抗震性能试验研究[J].建筑结构学报,2010,31(11):102-110.XUE Jian-yang,WU Kai,ZHAO Hong-tie,et al.Experimental study on seismic behavior of SRC-RCtransfer column[J].Journal of Building Structures,2010,31(11):102-110.(in Chinese)
[12]中国建筑科学研究院.GB50011—2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[13]戴国莹,王亚勇.房屋建筑抗震设计[M].北京:中国建筑工业出版社,2005.
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