低周反复荷载作用下钢骨混凝土L形柱受力性能试验
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摘要
通过3根钢骨混凝土L形柱和1根普通钢筋混凝土L形柱的低周反复加载试验,得到钢骨混凝土L形柱在压、弯、剪共同作用下的破坏形态。通过试验分析钢骨混凝土L形柱的延性、滞回特性、耗能能力、承载力退化、刚度退化,结果表明:钢骨混凝土L形柱的承载力随配钢量的增加而提高;延性随配钢量的增加而提高,随轴压比的增大而降低;钢骨混凝土L形柱与钢筋混凝土L形柱相比,承载力高、延性好、耗能能力强、变形能力大,抗震性能优。
Through the low reversed cyclic loading experiment of three L-shaped section steel reinforced concrete columns and one L-shaped section reinforced concrete column,the main destroyed patterns of L-shaped section steel reinforced concrete columns were obtained under compression,combining flexure and shear force.According to the experiment,the ductility,hysteresis,ability of energy consumption,bearing capacity degradation and stiffness degradation of L-shaped section steel reinforced concrete column were analyzed.The results show that the bearing capacity of L-shaped section steel reinforced concrete columns improves with the increase of the steel volume.The ductility raises with the increase of the steel volume and declines with the increase of the axial compression ratio.Compared to L-shaped section reinforced concrete columns,L-shaped section steel reinforced concrete columns have higher capacity,better ductility,larger energy dissipation capacity,more deformation capacity,and excellent seismic performance.
Through the low reversed cyclic loading experiment of three L-shaped section steel reinforced concrete columns and one L-shaped section reinforced concrete column,the main destroyed patterns of L-shaped section steel reinforced concrete columns were obtained under compression,combining flexure and shear force.According to the experiment,the ductility,hysteresis,ability of energy consumption,bearing capacity degradation and stiffness degradation of L-shaped section steel reinforced concrete column were analyzed.The results show that the bearing capacity of L-shaped section steel reinforced concrete columns improves with the increase of the steel volume.The ductility raises with the increase of the steel volume and declines with the increase of the axial compression ratio.Compared to L-shaped section reinforced concrete columns,L-shaped section steel reinforced concrete columns have higher capacity,better ductility,larger energy dissipation capacity,more deformation capacity,and excellent seismic performance.
引文
[1]JGJ149—2006混凝土异形柱结构技术规程[S].北京:中国建筑工业出版社,2006.
[2]李哲,张小锋,阙良刚,等.T形截面钢骨混凝土短柱承受水平周期性荷载的试验研究[J].水利与建筑工程学报,2006,4(2):24-25.
[3]陈宗平,薛建阳,赵鸿铁,等.型钢混凝土异形柱抗震性能试验研究[J].建筑结构学报,2007,28(3):53-61.
[4]许安邦,陈宗平,苏益声,等.两种不同混凝土异形柱正截面极限承载力的比较[J].广西大学学报:自然科学版,2006,31(2):168-171.
[5]陈宗平,薛建阳,赵鸿铁,等.低周反复荷载作用下型钢混凝土异形柱的抗剪承载力分析[J].土木工程学报,2007,40(7):30-36.
[6]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.
[2]李哲,张小锋,阙良刚,等.T形截面钢骨混凝土短柱承受水平周期性荷载的试验研究[J].水利与建筑工程学报,2006,4(2):24-25.
[3]陈宗平,薛建阳,赵鸿铁,等.型钢混凝土异形柱抗震性能试验研究[J].建筑结构学报,2007,28(3):53-61.
[4]许安邦,陈宗平,苏益声,等.两种不同混凝土异形柱正截面极限承载力的比较[J].广西大学学报:自然科学版,2006,31(2):168-171.
[5]陈宗平,薛建阳,赵鸿铁,等.低周反复荷载作用下型钢混凝土异形柱的抗剪承载力分析[J].土木工程学报,2007,40(7):30-36.
[6]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.
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