型钢混凝土柱骨架曲线特征点计算方法研究
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摘要
收集国内近年来关于型钢混凝土(SRC)柱低周循环加载下的84组试验数据,回归分析峰值位移和屈服位移之比、强化刚度、软化刚度与SRC柱构件主要设计参数(轴压比、配箍特征值、剪跨比、体积配箍率和混凝土强度)之间的关系,提出型钢混凝土柱骨架曲线特征点的计算方法。结果表明:峰值位移和屈服位移之比与体积配箍率、混凝土强度成正比,与轴压比、配箍特征值及剪跨比均成反比;强化刚度系数与配箍特征值、剪跨比成正比,与轴压比、体积配箍率及混凝土强度成反比;软化刚度系数与配箍特征值、剪跨比及混凝土强度成正比,与轴压比、体积配箍率成反比。该结果可为型钢混凝土组合结构的地震反应分析提供参考。
The regressive analysis of the collection of 84-group domestic test data of SRC from cyclic loading experiments shows the relationship between the ratio of maximum displacement & yield displacement,strengthened stiffness,degenerated stiffness and the main design parameters of SRC column,such as axial compression ratio,stirrup characteristic value,shear span ratio,stirrup volumetric percentage and concrete strength,and proposes the calculation method for the characteristic points of SRC column skeleton curve.The study arrives at following conclusions:the ratio of maximum displacement & yield displacement is rising with the increase of stirrup volumetric percentage and concrete strength,and has an inverse relationship with axial compression ratio,stirrup characteristic value and shear span ratio;strengthened stiffness coefficient is in proportion to stirrup characteristic value and shear span ratio,while in inverse proportion to axial compression ratio,stirrup volumetric percentage and concrete strength;while degenerated stiffness coefficient has the positive relationship with stirrup characteristic value,shear span ratio and concrete strength,and has negative relationship with axial compression ratio and stirrup volumetric percentage,the results of which can provide reference for seismic response analysis of SRC composite structures.
The regressive analysis of the collection of 84-group domestic test data of SRC from cyclic loading experiments shows the relationship between the ratio of maximum displacement & yield displacement,strengthened stiffness,degenerated stiffness and the main design parameters of SRC column,such as axial compression ratio,stirrup characteristic value,shear span ratio,stirrup volumetric percentage and concrete strength,and proposes the calculation method for the characteristic points of SRC column skeleton curve.The study arrives at following conclusions:the ratio of maximum displacement & yield displacement is rising with the increase of stirrup volumetric percentage and concrete strength,and has an inverse relationship with axial compression ratio,stirrup characteristic value and shear span ratio;strengthened stiffness coefficient is in proportion to stirrup characteristic value and shear span ratio,while in inverse proportion to axial compression ratio,stirrup volumetric percentage and concrete strength;while degenerated stiffness coefficient has the positive relationship with stirrup characteristic value,shear span ratio and concrete strength,and has negative relationship with axial compression ratio and stirrup volumetric percentage,the results of which can provide reference for seismic response analysis of SRC composite structures.
引文
[1]郭子雄,杨勇.恢复力模型研究现状及存在问题[J].世界地震工程,2004,20(4):47-51.
[2]牛玉俊,李红武.悬臂梁碰撞系统的动力学分析[J]安徽大学学报:自然科学版,2009,33(4):56-58.
[3]盛叶.哑铃形钢管混凝土受弯构件极限承载力算法[J].安徽工业大学学报:自然科学版,2010,27(2):163-166.
[4]中华人民共和国住房和城乡建设部.GB50010—2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2011.
[5]中华人民共和国建设部.JGJ138—2001型钢混凝土组合结构设计规程[S].北京:中国建筑工业出版社,2002.
[6]李俊华,薛建阳.型钢高强混凝土柱抗震性能的试验研究[J].世界地震工程,2004,20(4):94-99.
[7]蒋传星.配箍率对剪跨比为5的型钢高强混凝土柱受力性能影响的试验研究[D].重庆:重庆大学,2007.
[8]孙苍柏.钢骨高强混凝土柱杭震性能的研究[D].西安:西安建筑科技大学,2004.
[9]陈才华.型钢混凝土压弯构件试验研究及数值计算[D].北京:中国建筑科学研究院,2007.
[10]刘伟.型钢高强混凝土柱轴压比限值的试验研究[D].重庆:重庆大学,2007.
[11]杨定锋.配箍率对λ=3型钢高强混凝土柱在反复荷载作用下受力性能影响的试验研究[D].重庆:重庆大学,2007.
[12]贾金青.钢骨高强混凝土短柱及高强混凝土短柱力学性能的研究[D].大连:大连理工大学,2000.
[13]陶清林.地震激励下SRC框架-RC核心筒混合结构损伤模型研究[D].西安:西安建筑科技大学,2011.
[14]张国军,吕西林,刘伯权.钢筋混凝土框架柱在轴压比超限时抗震性能的研究[J].土木工程学报,2006,39(3):47-54.
[15]郑山锁,张亮,李磊,等.型钢高强混凝土框架柱抗震性能试验研究[J].建筑结构学报,2012,33(5):124-132.
[2]牛玉俊,李红武.悬臂梁碰撞系统的动力学分析[J]安徽大学学报:自然科学版,2009,33(4):56-58.
[3]盛叶.哑铃形钢管混凝土受弯构件极限承载力算法[J].安徽工业大学学报:自然科学版,2010,27(2):163-166.
[4]中华人民共和国住房和城乡建设部.GB50010—2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2011.
[5]中华人民共和国建设部.JGJ138—2001型钢混凝土组合结构设计规程[S].北京:中国建筑工业出版社,2002.
[6]李俊华,薛建阳.型钢高强混凝土柱抗震性能的试验研究[J].世界地震工程,2004,20(4):94-99.
[7]蒋传星.配箍率对剪跨比为5的型钢高强混凝土柱受力性能影响的试验研究[D].重庆:重庆大学,2007.
[8]孙苍柏.钢骨高强混凝土柱杭震性能的研究[D].西安:西安建筑科技大学,2004.
[9]陈才华.型钢混凝土压弯构件试验研究及数值计算[D].北京:中国建筑科学研究院,2007.
[10]刘伟.型钢高强混凝土柱轴压比限值的试验研究[D].重庆:重庆大学,2007.
[11]杨定锋.配箍率对λ=3型钢高强混凝土柱在反复荷载作用下受力性能影响的试验研究[D].重庆:重庆大学,2007.
[12]贾金青.钢骨高强混凝土短柱及高强混凝土短柱力学性能的研究[D].大连:大连理工大学,2000.
[13]陶清林.地震激励下SRC框架-RC核心筒混合结构损伤模型研究[D].西安:西安建筑科技大学,2011.
[14]张国军,吕西林,刘伯权.钢筋混凝土框架柱在轴压比超限时抗震性能的研究[J].土木工程学报,2006,39(3):47-54.
[15]郑山锁,张亮,李磊,等.型钢高强混凝土框架柱抗震性能试验研究[J].建筑结构学报,2012,33(5):124-132.
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