横梁含橡胶集料对某框架-剪力墙结构抗震性能的影响
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摘要
橡胶集料混凝土具有阻尼大、变形能力强和弹性模量低等特点.首次以结构自振周期、侧向刚度、水平地震载荷和结构层间弹性位移为参考指标,引进阻尼比ζ和弹性模量折减系数λ,分析横梁加入橡胶集料对框架-剪力墙结构抗震性能的影响,并且与相对应的普通混凝土框架-剪力墙结构作对比.分析结果显示,相对于普通混凝土框架-剪力墙结构侧向刚度较大等特点,在横梁中掺入橡胶集料后能适当地降低结构侧向刚度,延长结构基本周期,降低水平地震载荷,从而提高结构抗震性能.
Crumb Rubber Concrete(CRC) is characterized with large damp coefficient,large deformation,low elastic modulus and so on.An analysis of the seismic behavior of a steel reinforced concrete frame-shear wall structure was conducted with its beams being conventional concrete and CRC concrete,respectively.The damp ratio ζ and elastic modulus reduction factor λ is introduced to differentiate CRC from conventional concrete and,the primary frequency,lateral rigidity,horizontal earthquake load and layer elastic deformation are calculated based on the standardized design procedure.The results show that CRC beams do increase the primary natural vibration frequency and reduce the floor lateral force,which means an improvement in earthquake resistance.
Crumb Rubber Concrete(CRC) is characterized with large damp coefficient,large deformation,low elastic modulus and so on.An analysis of the seismic behavior of a steel reinforced concrete frame-shear wall structure was conducted with its beams being conventional concrete and CRC concrete,respectively.The damp ratio ζ and elastic modulus reduction factor λ is introduced to differentiate CRC from conventional concrete and,the primary frequency,lateral rigidity,horizontal earthquake load and layer elastic deformation are calculated based on the standardized design procedure.The results show that CRC beams do increase the primary natural vibration frequency and reduce the floor lateral force,which means an improvement in earthquake resistance.
引文
[1]郭兆伟.高层框架剪力墙结构抗震设计的技术要点分析[J].建材技术与应用,2011(1):24-25.(Guo Zhaowei.Technical Points of the High-levelFramework for Design of Shear Wall Structure[J].Research&Application of Building Materials,2011(1):24-25.)
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[4]陈蔓蔓.对高层框架剪力墙结构抗震设计方式的一些看法[J].价值工程,2010(30):71.(Chen Manman.Views on Aseismatic Design Ways ofHigh-rise Frame-shear Wall Structure[J].ValueEngineering,2010(30):71.)
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[7]李悦,吴玉生,杨玉红,等.钢筋橡胶集料混凝土结构性能研究[J].北京工业大学学报,2008,34(12):1280-1285.(Li Yue,Wu Yusheng,Yang Yuhong,et al.Study onthe Structure Properties of Steel Reinforced CrumbRubber Concrete[J].Journal of Beijing University ofTechnology,2008,34(12):1280-1285.)
[8]许静,朱涵,刘春生,等.橡胶集料混凝土阻尼比的初步试验研究[J].混凝土,2005(11):40-42.(Xu Jing,Zhu Han,Liu Chunsheng,et al.PreliminaryExperimental Studies on Damping Ratio of Crumb RubberConcrete[J].Concrete,2005(11):40-42.)
[9]朱涵.新型弹性混凝土的研究综述[J].天津建设科技,2004(2):35-37.(Zhu Han.Summary on Research of New Elastic Concrete[J].Tianjin Construction Science and Technology,2004(2):35-37.)
[10]章传兵.橡胶集料混凝土在连梁中的应用初探[D].天津:天津大学,2007.(Zhang Chuanbing.A Primary Study on CRC'sApplication in Linking Beam[D].Tianjin:TianjinUniversity,2007.)
[11]李成芳,朱涵,杨林虎.橡胶集料混凝土改善框架抗震性能的计算分析实例[J].工业建筑,2008(38):415-418.(Li Chengfang,Zhu Han,Yang Linhu.Case Studies ofSeismic Behavior of the Developed Frame by CRC[J].Industrial Construction,2008(38):415-418.)
[12]Zheng L,Huo X S,Yuan Y.Strength,Modulus ofElasticity,and Brittleness Index of Rubberize Concrete[J].Mater.Civil Eng.,2008,20(11):692-699.
[13]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.(China Academy of Building Research.GB 50011-2010Code for Seismic Design Buildings[S].Beijing:ChinaArchitecture&Building Press,2010.)
[14]中国建筑科学研究院.JGJ3—2002高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011.(China Academy of Building Research.JGJ 3-2002Technical Specification for Concrete Structures of TallBuilding[S].Beijing:China Architecture&BuildingPress,2011.)
[15]柯国军,郭长青,胡绍全,等.混凝土阻尼比研究[J].建筑材料学报,2004,7(1):35-40.(Ke Guojun,Guo Changqing,Hu Shaoquan,et al.Studyon the Damping Ratio of Concrete[J].Journal of BuildingMaterials,2004,7(1):35-40.)
[16]樊海涛,何益斌,肖宏彬.钢筋混凝土建筑非线性阻尼性能及阻尼比表达式研究[J].地震工程与工程振动,2005,25(5),85-90.(Fan Haitao,He Yibin,Xiao Hongbin.Study on Non-linear Damping Performance and Damping Ratio Formulaof Reinforced Concrete Buildings[J].EarthquakeEngineering and Engineering Vibration,2005,25(5):85-90.)
[17]梁超锋,欧进萍.结构阻尼与材料阻尼的关系[J].地震工程与工程振动,2006,26(1):49-55.(Liang Chaofeng,Ou Jinping.Relationship BetweenStructural Damping and Material Damping[J].Earthquake Engineering and Engineering Vibration,2006,26(1):49-55.)
[18]王元丰,李鹏.材料阻尼对钢筋混凝土框架结构动力响应影响分析[J].土木工程学报,2008,41(11):39-43.(Wang Yuanfeng,Li Peng.Analysis of Influence ofMaterial Damping on the Dynamic Response of ReinforcedConcrete Frame Structures[J].China Civil EngineeringJournal,2008,41(11):39-43.)
[19]张辉东,王元丰,江辉.不同参数取值对复阻尼模型结构抗震性能的影响[J].建筑结构学报,2009,30(6):94-100.(Zhang Huidong,Wang Yuanfeng,Jiang Hui.Effect ofDifferent Parameters on Seismic Performance of ComplexDamping Structures[J].Journal of Building Structures,2009,30(6):94-100.)
[2]罗永坤,徐亚军.异型柱框架剪力墙结构抗震分析[C]∥第六届全国结构工程学术会议论文集:第三卷,1997.(Luo Yongkun,Xu Yajun.Special-shaped Column FrameShear Wall Structure Analysis[C]∥Proceedings of SixthNational Structural Engineering Conference:VolumeⅢ,1997.)
[3]沈蒲生,孟焕陵.基于优化原理框-剪结构中剪力墙合理数量[J].湖南大学学报:自然科学版,2006,33(5):1-5.(Shen Pusheng,Meng Huanling.Optimal Quantity ofShear Wall in Frame-shear Wall Structures based onOptimal Principle[J].Journal of Hunan University:Natural Science,2006,33(5):1-5.)
[4]陈蔓蔓.对高层框架剪力墙结构抗震设计方式的一些看法[J].价值工程,2010(30):71.(Chen Manman.Views on Aseismatic Design Ways ofHigh-rise Frame-shear Wall Structure[J].ValueEngineering,2010(30):71.)
[5]刘春生,朱涵,李志国,等.橡胶细集料水泥砂浆基本性能研究[J].混凝土,2005(7):38-42.(Liu Chunsheng,Zhu Han,Li Zhiguo,et al.Research inthe Fundamental Characteristics of Crumb Rubber Mortar[J].Concrete,2005(7):38-42.)
[6]杨林虎,朱涵,李强.橡胶集料钢筋混凝土梁截面的延性[J].济南大学学报:自然科学版,2007,21(1):28-30.(Yang Linhu,Zhu Han,Li Qiang.Ductility of Section inReinforced Crumb Rubber Concrete Beam[J].Journal ofUniversity of Jinan:Science&Technology,2007,21(1):28-30.)
[7]李悦,吴玉生,杨玉红,等.钢筋橡胶集料混凝土结构性能研究[J].北京工业大学学报,2008,34(12):1280-1285.(Li Yue,Wu Yusheng,Yang Yuhong,et al.Study onthe Structure Properties of Steel Reinforced CrumbRubber Concrete[J].Journal of Beijing University ofTechnology,2008,34(12):1280-1285.)
[8]许静,朱涵,刘春生,等.橡胶集料混凝土阻尼比的初步试验研究[J].混凝土,2005(11):40-42.(Xu Jing,Zhu Han,Liu Chunsheng,et al.PreliminaryExperimental Studies on Damping Ratio of Crumb RubberConcrete[J].Concrete,2005(11):40-42.)
[9]朱涵.新型弹性混凝土的研究综述[J].天津建设科技,2004(2):35-37.(Zhu Han.Summary on Research of New Elastic Concrete[J].Tianjin Construction Science and Technology,2004(2):35-37.)
[10]章传兵.橡胶集料混凝土在连梁中的应用初探[D].天津:天津大学,2007.(Zhang Chuanbing.A Primary Study on CRC'sApplication in Linking Beam[D].Tianjin:TianjinUniversity,2007.)
[11]李成芳,朱涵,杨林虎.橡胶集料混凝土改善框架抗震性能的计算分析实例[J].工业建筑,2008(38):415-418.(Li Chengfang,Zhu Han,Yang Linhu.Case Studies ofSeismic Behavior of the Developed Frame by CRC[J].Industrial Construction,2008(38):415-418.)
[12]Zheng L,Huo X S,Yuan Y.Strength,Modulus ofElasticity,and Brittleness Index of Rubberize Concrete[J].Mater.Civil Eng.,2008,20(11):692-699.
[13]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.(China Academy of Building Research.GB 50011-2010Code for Seismic Design Buildings[S].Beijing:ChinaArchitecture&Building Press,2010.)
[14]中国建筑科学研究院.JGJ3—2002高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2011.(China Academy of Building Research.JGJ 3-2002Technical Specification for Concrete Structures of TallBuilding[S].Beijing:China Architecture&BuildingPress,2011.)
[15]柯国军,郭长青,胡绍全,等.混凝土阻尼比研究[J].建筑材料学报,2004,7(1):35-40.(Ke Guojun,Guo Changqing,Hu Shaoquan,et al.Studyon the Damping Ratio of Concrete[J].Journal of BuildingMaterials,2004,7(1):35-40.)
[16]樊海涛,何益斌,肖宏彬.钢筋混凝土建筑非线性阻尼性能及阻尼比表达式研究[J].地震工程与工程振动,2005,25(5),85-90.(Fan Haitao,He Yibin,Xiao Hongbin.Study on Non-linear Damping Performance and Damping Ratio Formulaof Reinforced Concrete Buildings[J].EarthquakeEngineering and Engineering Vibration,2005,25(5):85-90.)
[17]梁超锋,欧进萍.结构阻尼与材料阻尼的关系[J].地震工程与工程振动,2006,26(1):49-55.(Liang Chaofeng,Ou Jinping.Relationship BetweenStructural Damping and Material Damping[J].Earthquake Engineering and Engineering Vibration,2006,26(1):49-55.)
[18]王元丰,李鹏.材料阻尼对钢筋混凝土框架结构动力响应影响分析[J].土木工程学报,2008,41(11):39-43.(Wang Yuanfeng,Li Peng.Analysis of Influence ofMaterial Damping on the Dynamic Response of ReinforcedConcrete Frame Structures[J].China Civil EngineeringJournal,2008,41(11):39-43.)
[19]张辉东,王元丰,江辉.不同参数取值对复阻尼模型结构抗震性能的影响[J].建筑结构学报,2009,30(6):94-100.(Zhang Huidong,Wang Yuanfeng,Jiang Hui.Effect ofDifferent Parameters on Seismic Performance of ComplexDamping Structures[J].Journal of Building Structures,2009,30(6):94-100.)
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