开孔与开槽式三重钢管防屈曲耗能支撑设计方法研究
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摘要
开孔与开槽式三重钢管防屈曲耗能支撑是依据"核心单元局部削弱相当于其他部位加强"的新型防屈曲耗能支撑设计原理设计而成的。通过对核心单元局部开孔或开槽使支撑薄弱部位由端部转移到开孔或开槽部位,具有定点屈服的功能,提高了支撑的延性,是性能良好的耗能减震构件。结合国内外相关规范,通过理论分析和有限元模拟,提出开孔和开槽式三重钢管防屈曲耗能支撑的设计方法,包括开孔和开槽式三重钢管防屈曲耗能支撑承载力的计算方法,核心钢管和内外钢管的设计方法及支撑节点的设计方法。最后通过试验验证该方法的正确性。
This paper presents two new designs of perforated triple-steel-tube buckling-restrained brace(PBRB) and notched triple-steel-tube buckling-restrained brace(NBRB).The design is based on the philosophy of "partially weakened core element of the buckling-restrained brace to protect the other part of the brace member".This new design allows a control of the yield locations,and the locations of plastic deformation initiation and propagation in the brace member to dissipate seismic energy.Due to perforation or notching at the core of the BRB,the yield point of the BRB is reduced,the ductility is increased and the weakest location of the BRB transfers from the end to the middle of the core with perforation.Base on codes both at home and abroad,the design method of the propound BRB is proposed for theoretical and FEM analysis.The method include: the numerical method of bearing capacity for the BRB,the design methods for core tube,inner tube,outer tube and joint of the BRB.Finally,the validity of the design method is proved through test.
This paper presents two new designs of perforated triple-steel-tube buckling-restrained brace(PBRB) and notched triple-steel-tube buckling-restrained brace(NBRB).The design is based on the philosophy of "partially weakened core element of the buckling-restrained brace to protect the other part of the brace member".This new design allows a control of the yield locations,and the locations of plastic deformation initiation and propagation in the brace member to dissipate seismic energy.Due to perforation or notching at the core of the BRB,the yield point of the BRB is reduced,the ductility is increased and the weakest location of the BRB transfers from the end to the middle of the core with perforation.Base on codes both at home and abroad,the design method of the propound BRB is proposed for theoretical and FEM analysis.The method include: the numerical method of bearing capacity for the BRB,the design methods for core tube,inner tube,outer tube and joint of the BRB.Finally,the validity of the design method is proved through test.
引文
[1]萩野谷学,長尾直治,田口孝,等.三重鋼管座屈拘束制震ブレースの耐震性能に関する研究(その1:三重鋼管ブレースの概要と靜的繰返実験)[C]//日本建築学会大会学術講演梗概集.近畿,2005:1011-1012
[2]竹板和成,長尾直治,田口孝,等.三重鋼管座屈拘束ブレースの耐震性能に関する研究(その2:実験結果の考察と有限要素法解析)[C]//日本建築学会大会学術講演梗概集.近畿,2005:1013-1014
[3]松嶌直樹,長尾直治,田口孝,等.三重鋼管座屈拘束制震ブレースの耐震性能に関する研究(その3:実大要素実験の実験概要と実験結果)[C]//日本建築学会大会学術講演梗概集.関東,2006:869-870
[4]萩野谷学,長尾直治,神谷隆,等.三重鋼管座屈拘束制震ブレースの耐震性能に関する研究(その4:実大要素実験の考察)[C]//日本建築学会大会学術講演梗概集.関東,2006:871-872
[5]Koetaka Y,Kinoshita T,Inoue K,et al.Criteria of buckling-restrained braces to prevent out-of-plane buckling[C]//Proceedings of the 14th World Conference on EarthquakeEngineering,Beijing,2008
[6]邓雪松,褚洪民,钱洪涛,等.三重钢管防屈曲耗能支撑性能的有限元模拟分析[J].华中科技大学学报:城市科学版,2008,25(3):99-103(Deng Xuesong,ChuHongmin,Qian Hongtao,et al.The finite elementmodeling analysis of triple-steel tube buckling-restrainedbrace performance[J].Journal of Huazhong University ofScience and Technology:Urban Science Edition,2008,25(3):99-103(in Chinese))
[7]周云,钱洪涛,褚洪民,等.新型防屈曲耗能支撑设计原理与性能研究[J].土木工程学报,2009,42(4):64-71(Zhou Yun,Qian Hongtao,Chu Hongmin,et al.A studyon the design principle and performance of a new type ofbuckling-resistant brace[J].China Civil EngineeringJournal,2009,42(4):64-71(in Chinese))
[8]褚洪民.新型三重钢管防屈曲耗能支撑性能研究及其在结构抗震加固中的应用研究[D]:广州:广州大学,2008(Chu Hongmin.Research on the new triple-steel tubebuckling-restrained brace and its application in the structurerehabilitation[D].Guangzhou:Guangzhou University,2008(in Chinese))
[9]钱洪涛.新型防屈曲耗能支撑性能研究及其在钢结构中的应用研究[D].广州:广州大学,2008(QianHongtao.Research on the performance of a new typebuckling-restrained brace and its application in the steelstructure[D].Guangzhou:Guangzhou University,2008(in Chinese))
[10]周云,邓雪松,杨叶斌,等.防屈曲耗能减震支撑研究应用与标准化[J].钢结构,2009(增):612-618(ZhouYun,Deng Xuesong,Yang Yebin,et al.State-of-the-art ofbuckling-restrained braces and suggestion on itsstandardization[J].Steel Construction,2009(S):612-618(in Chinese))
[11]陈真,褚洪民,邓雪松,等.开孔三重钢管防屈曲耗能支撑有限元分析[J].中山大学学报:自然科学版,2010,49(3):140-145(Chen Zhen,Chu Hongmin,DengXuesong,et al.Finite element analysis of perforatingtriple-steel tube buckling-restrained brace[J].ActaScientiarum Naturalium Universitatis Sunyatseni,2010,49(3):140-145(in Chinese))
[12]邓雪松,陈真,周云.间隙与支座类型对开孔三重钢管防屈曲耗能支撑性能的影响[J].地震工程与工程振动,2010,30(3):64-69(Deng Xuesong,Chen Zhen,Zhou Yun.Effects of gaps and bearing types onperformance of perforated triple-steel tube buckling-restrained brace[J].Earthquake Engineering andEngineering Vibration,2010,30(3):64-69(in Chinese))
[13]陈真.开孔三重钢管防屈曲耗能支撑设计参数与性能试验研究[D].广州:广州大学,2010(Chen Zhen.Research on design parameters of perforating triple-steeltube buckling-restrained brace and its performance test[D].Guangzhou:Guangzhou University,2010(inChinese))
[14]邹征敏.新型开槽式防屈曲耗能支撑性能研究[D].广州:广州大学,2010(Zou Zhengmin.Performance study ofnotch-type buckling-resistant braces[D].Guangzhou:Guangzhou University,2010(in Chinese))
[15]Zou Zhengmin,Zhou Yun,Deng Xuesong.Design andanalysis of buckling-restrained notch-type triple-steel tubebrace[C]//第三届结构工程新进展国际论坛论文集.北京:中国建筑工业出版社,2009:46-60(ZouZhengmin,Zhou Yun,Deng Xuesong.Design and analysisof buckling-restrained notch-type triple-steel tube brace[C]//Proceedings of the Third International Forum onAdvances in Structural Engineering,Beijing:ChinaArchitecture&Building Press,2009:46-60(in Chinese))
[16]FEMA 450 NEHR Precommended provisions for seismicregulations for new buildings and other structures[S].2003 Edition.Washington,DC:Building Seismic SafetyCouncil,National Institute of Building Sciences,2004
[17]GB50017—2003钢结构设计规范[S].北京:中国计划出版社,2003(GB50017—2003Code for design of steelstructures[S].Beijing:China Planning Press,2003(inChinese))
[2]竹板和成,長尾直治,田口孝,等.三重鋼管座屈拘束ブレースの耐震性能に関する研究(その2:実験結果の考察と有限要素法解析)[C]//日本建築学会大会学術講演梗概集.近畿,2005:1013-1014
[3]松嶌直樹,長尾直治,田口孝,等.三重鋼管座屈拘束制震ブレースの耐震性能に関する研究(その3:実大要素実験の実験概要と実験結果)[C]//日本建築学会大会学術講演梗概集.関東,2006:869-870
[4]萩野谷学,長尾直治,神谷隆,等.三重鋼管座屈拘束制震ブレースの耐震性能に関する研究(その4:実大要素実験の考察)[C]//日本建築学会大会学術講演梗概集.関東,2006:871-872
[5]Koetaka Y,Kinoshita T,Inoue K,et al.Criteria of buckling-restrained braces to prevent out-of-plane buckling[C]//Proceedings of the 14th World Conference on EarthquakeEngineering,Beijing,2008
[6]邓雪松,褚洪民,钱洪涛,等.三重钢管防屈曲耗能支撑性能的有限元模拟分析[J].华中科技大学学报:城市科学版,2008,25(3):99-103(Deng Xuesong,ChuHongmin,Qian Hongtao,et al.The finite elementmodeling analysis of triple-steel tube buckling-restrainedbrace performance[J].Journal of Huazhong University ofScience and Technology:Urban Science Edition,2008,25(3):99-103(in Chinese))
[7]周云,钱洪涛,褚洪民,等.新型防屈曲耗能支撑设计原理与性能研究[J].土木工程学报,2009,42(4):64-71(Zhou Yun,Qian Hongtao,Chu Hongmin,et al.A studyon the design principle and performance of a new type ofbuckling-resistant brace[J].China Civil EngineeringJournal,2009,42(4):64-71(in Chinese))
[8]褚洪民.新型三重钢管防屈曲耗能支撑性能研究及其在结构抗震加固中的应用研究[D]:广州:广州大学,2008(Chu Hongmin.Research on the new triple-steel tubebuckling-restrained brace and its application in the structurerehabilitation[D].Guangzhou:Guangzhou University,2008(in Chinese))
[9]钱洪涛.新型防屈曲耗能支撑性能研究及其在钢结构中的应用研究[D].广州:广州大学,2008(QianHongtao.Research on the performance of a new typebuckling-restrained brace and its application in the steelstructure[D].Guangzhou:Guangzhou University,2008(in Chinese))
[10]周云,邓雪松,杨叶斌,等.防屈曲耗能减震支撑研究应用与标准化[J].钢结构,2009(增):612-618(ZhouYun,Deng Xuesong,Yang Yebin,et al.State-of-the-art ofbuckling-restrained braces and suggestion on itsstandardization[J].Steel Construction,2009(S):612-618(in Chinese))
[11]陈真,褚洪民,邓雪松,等.开孔三重钢管防屈曲耗能支撑有限元分析[J].中山大学学报:自然科学版,2010,49(3):140-145(Chen Zhen,Chu Hongmin,DengXuesong,et al.Finite element analysis of perforatingtriple-steel tube buckling-restrained brace[J].ActaScientiarum Naturalium Universitatis Sunyatseni,2010,49(3):140-145(in Chinese))
[12]邓雪松,陈真,周云.间隙与支座类型对开孔三重钢管防屈曲耗能支撑性能的影响[J].地震工程与工程振动,2010,30(3):64-69(Deng Xuesong,Chen Zhen,Zhou Yun.Effects of gaps and bearing types onperformance of perforated triple-steel tube buckling-restrained brace[J].Earthquake Engineering andEngineering Vibration,2010,30(3):64-69(in Chinese))
[13]陈真.开孔三重钢管防屈曲耗能支撑设计参数与性能试验研究[D].广州:广州大学,2010(Chen Zhen.Research on design parameters of perforating triple-steeltube buckling-restrained brace and its performance test[D].Guangzhou:Guangzhou University,2010(inChinese))
[14]邹征敏.新型开槽式防屈曲耗能支撑性能研究[D].广州:广州大学,2010(Zou Zhengmin.Performance study ofnotch-type buckling-resistant braces[D].Guangzhou:Guangzhou University,2010(in Chinese))
[15]Zou Zhengmin,Zhou Yun,Deng Xuesong.Design andanalysis of buckling-restrained notch-type triple-steel tubebrace[C]//第三届结构工程新进展国际论坛论文集.北京:中国建筑工业出版社,2009:46-60(ZouZhengmin,Zhou Yun,Deng Xuesong.Design and analysisof buckling-restrained notch-type triple-steel tube brace[C]//Proceedings of the Third International Forum onAdvances in Structural Engineering,Beijing:ChinaArchitecture&Building Press,2009:46-60(in Chinese))
[16]FEMA 450 NEHR Precommended provisions for seismicregulations for new buildings and other structures[S].2003 Edition.Washington,DC:Building Seismic SafetyCouncil,National Institute of Building Sciences,2004
[17]GB50017—2003钢结构设计规范[S].北京:中国计划出版社,2003(GB50017—2003Code for design of steelstructures[S].Beijing:China Planning Press,2003(inChinese))
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