SRC-RC竖向混合框架静力非线性分析
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摘要
为了解决SRC-RC竖向混合框架承载力和刚度的突变问题,避免形成薄弱层,共进行了7个工况的静力非线性计算,对SRC-RC竖向混合框架的抗震性能进行了分析.通过计算给出了SRC-RC竖向混合框架的基底剪力与顶点侧移曲线、极限层间侧移角及塑性铰分布.结果表明:SRC结构层数与结构总层数的比值不应小于1/3,以保证梁铰侧移机制得以实现;RC结构部分底层容易因刚度与强度突变而成为结构的薄弱层,因此适当增加RC结构部分底层或底部数层的纵筋数量,或减小与RC柱邻接的SRC柱的配钢率,可保证楼层承载力和刚度逐级递减,改善SRC-RC竖向混合框架的抗震性能.
In order to solve the mutation of loading capacity and rigidity of SRC-RC vertical hybrid frames and to avoid the formation of weak layers,the seismic performance of SRC-RC vertical hybrid frames were studied through static nonlinear analysis of seven conditions.The relationship between the bottom shear force and the lateral displacement at the top of the frame was obtained.The ultimate story displacement angle and plastic hinge distributions were also obtained.The results show that the ratio of the SRC layers to the total layers should not less than 1/3 to ensure the realization of lateral displacement of beam hinge.The weak layer may occur at the bottom layer of RC structure adjacent to SRC layer due to the mutation of rigidity and strength,and hence an appropriate increase in the number of longitudinal reinforcement at the RC columns adjacent to SRC layer or the decrease of shape steel arrangement in SRC columns adjacent to RC layer can gradually decrease the loading capacity and rigidity of the story,and improve the seismic performance of SRC-RC vertical hybrid frames.
In order to solve the mutation of loading capacity and rigidity of SRC-RC vertical hybrid frames and to avoid the formation of weak layers,the seismic performance of SRC-RC vertical hybrid frames were studied through static nonlinear analysis of seven conditions.The relationship between the bottom shear force and the lateral displacement at the top of the frame was obtained.The ultimate story displacement angle and plastic hinge distributions were also obtained.The results show that the ratio of the SRC layers to the total layers should not less than 1/3 to ensure the realization of lateral displacement of beam hinge.The weak layer may occur at the bottom layer of RC structure adjacent to SRC layer due to the mutation of rigidity and strength,and hence an appropriate increase in the number of longitudinal reinforcement at the RC columns adjacent to SRC layer or the decrease of shape steel arrangement in SRC columns adjacent to RC layer can gradually decrease the loading capacity and rigidity of the story,and improve the seismic performance of SRC-RC vertical hybrid frames.
引文
[1]薛建阳.钢与混凝土组合结构设计原理[M].北京:科学出版社,2010.
[2]赵鸿铁.组合结构设计原理[M].北京:高等教育出版社,2005.
[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 reinforced high-strength concretecolumns under low cyclic reversed loading[J].China Civil Engineering Journal,2007,40(7):11-18.(in Chinese))
[4]伍凯,薛建阳,赵鸿铁,等.SRC-RC转换柱抗震性能及型钢最小延伸长度分析[J].西安建筑科技大学学报:自然科学版,2008,40(2):170-175.(WU Kai,XUE Jian-yang,ZHAOHong-tie,et al.Analysis on seismic performance ofSRC-RC transfer column andthe anchoring length of shape steel[J].Journal of Xi’an University of Architecture and Technology:Natural Science Edition,2008,40(2):170-175.(in Chinese))
[5]LI Jun-hua,XUE Jian-yang,ZHAO Hong-tie.Experimental study on slip behavior between shaped steel and concrete in SRC columnsunder cyclic reversed loading[J].Journal of Xi’an University ofArchitecture and Technology:Natural Science Edition,2008,40(3):348-353.
[6]XUE Jian-yang,ZHAO Hong-tie,YANG Yong,et al.Analysis on the behaviors of bond-slip between the shape steel and the concrete bypush-out test[J].Journal of Xi’an University of Architecture and Technology:Natural Science Edition,2007,39(4):320-326.
[7]刘大海,杨翠如.型钢、钢管混凝土高楼计算和构造[M].北京:中国建筑工业出版社,2003.
[8]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.(YANGYong,GUO Z-ixiong,NIE Jian-guo,et al.Study on seismic design of transmission story of SRC-RC vertical hybrid structures[J].WorldEarthquake Engineering,2005,21(4):60-65.(in Chinese))
[9]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 Z-ixiong,NIE Jian-guo.Review of studies on seismic design of transition story of steel reinforced concrete(SRC)vertical hybrid structures[J].Earthquake Resistant Engineering and Retrofitting,2006,28(5):78-86.(in Chinese))
[10]戴国亮,蒋永生,傅传国,等.高层型钢混凝土底部大空间转换层结构性能研究[J].土木工程学报,2003,36(4):24-32.(DAI Guo-liang,JIANG Yong-sheng,FU Chuan-guo,et al.Experimental study on aseismic behaviors oftransfer story with steel reinforcedconcrete in low stories of large space[J].China Civil Engineering Journal,2003,36(4):24-32.(in Chinese))
[11]今野修,今泉隆之,山本宪一郎,等.超高层建筑物における下层阶へのSRC构造适用に阌する宓骢的研究,その1SRC柱の性性能に阌する宓骢计画[C]//日本建筑学大会学术讲演梗概集.九州:日本建筑学会,1998:1029-1030.
[12]木村润一,新宫义信.缲返しせん断を受ける混合部材の构造性能[C]//日本建筑学会大会学术讲演梗概集.九州:日本建筑学会,1998:1067-1068.
[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.
[14]JGJ138—2001型钢混凝土组合结构技术规程[S].
[2]赵鸿铁.组合结构设计原理[M].北京:高等教育出版社,2005.
[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 reinforced high-strength concretecolumns under low cyclic reversed loading[J].China Civil Engineering Journal,2007,40(7):11-18.(in Chinese))
[4]伍凯,薛建阳,赵鸿铁,等.SRC-RC转换柱抗震性能及型钢最小延伸长度分析[J].西安建筑科技大学学报:自然科学版,2008,40(2):170-175.(WU Kai,XUE Jian-yang,ZHAOHong-tie,et al.Analysis on seismic performance ofSRC-RC transfer column andthe anchoring length of shape steel[J].Journal of Xi’an University of Architecture and Technology:Natural Science Edition,2008,40(2):170-175.(in Chinese))
[5]LI Jun-hua,XUE Jian-yang,ZHAO Hong-tie.Experimental study on slip behavior between shaped steel and concrete in SRC columnsunder cyclic reversed loading[J].Journal of Xi’an University ofArchitecture and Technology:Natural Science Edition,2008,40(3):348-353.
[6]XUE Jian-yang,ZHAO Hong-tie,YANG Yong,et al.Analysis on the behaviors of bond-slip between the shape steel and the concrete bypush-out test[J].Journal of Xi’an University of Architecture and Technology:Natural Science Edition,2007,39(4):320-326.
[7]刘大海,杨翠如.型钢、钢管混凝土高楼计算和构造[M].北京:中国建筑工业出版社,2003.
[8]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.(YANGYong,GUO Z-ixiong,NIE Jian-guo,et al.Study on seismic design of transmission story of SRC-RC vertical hybrid structures[J].WorldEarthquake Engineering,2005,21(4):60-65.(in Chinese))
[9]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 Z-ixiong,NIE Jian-guo.Review of studies on seismic design of transition story of steel reinforced concrete(SRC)vertical hybrid structures[J].Earthquake Resistant Engineering and Retrofitting,2006,28(5):78-86.(in Chinese))
[10]戴国亮,蒋永生,傅传国,等.高层型钢混凝土底部大空间转换层结构性能研究[J].土木工程学报,2003,36(4):24-32.(DAI Guo-liang,JIANG Yong-sheng,FU Chuan-guo,et al.Experimental study on aseismic behaviors oftransfer story with steel reinforcedconcrete in low stories of large space[J].China Civil Engineering Journal,2003,36(4):24-32.(in Chinese))
[11]今野修,今泉隆之,山本宪一郎,等.超高层建筑物における下层阶へのSRC构造适用に阌する宓骢的研究,その1SRC柱の性性能に阌する宓骢计画[C]//日本建筑学大会学术讲演梗概集.九州:日本建筑学会,1998:1029-1030.
[12]木村润一,新宫义信.缲返しせん断を受ける混合部材の构造性能[C]//日本建筑学会大会学术讲演梗概集.九州:日本建筑学会,1998:1067-1068.
[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.
[14]JGJ138—2001型钢混凝土组合结构技术规程[S].
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