带耗能腋撑型钢混凝土梁转换结构设计方法研究
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摘要
带耗能腋撑型钢混凝土梁转换结构是一种新型的转换结构,受力状态和抗震性能有别于普通的耗能减震结构,设计过程缺乏理论指导。因此,该文在建立该种新型结构简化计算模型的基础上,通过理论分析方法推导了结构各控制截面的内力计算公式,建立了一套该种结构基于"强柱弱梁"、"强剪弱弯"和"强节点弱构件"等延性设计思想的设计方法。设计实例分析证明,根据该文方法设计的带耗能腋撑转换结构,相比普通结构转换层处的刚度突变得到了缓解而且结构的延性得到了提高。该文提出的方法可为该种新型转换结构的设计提供理论依据。
A steel reinforced concrete(SRC) beam transfer structure with a supplemental energy dissipation haunch brace(EDHB) is a new kind of transfer structure whose state of internal forces and seismic performance is different from those normal energy dissipation structures,and lack of theory to guide its design process.Therefore,based on the established simplified calculation model of this kind of structure,formulas of the internal forces at the controlled cross sections are derived by the theoretical analysis method.A design method based on the ductility concept of "strong column-weak beam","strong shear-weak bending" and "strong joint-weak members" is established using the formulas.The analysis of design examples showed that,compared with a normal structure,the stiffness mutation at transfer storey can be efficiently reduced and the ductility of a structure can be improved when a SRC beam transfer structure with EDHB was designed by the presented design method.The design method presented by the paper can be the theoretical references for the design of the new type of transfer structure.
A steel reinforced concrete(SRC) beam transfer structure with a supplemental energy dissipation haunch brace(EDHB) is a new kind of transfer structure whose state of internal forces and seismic performance is different from those normal energy dissipation structures,and lack of theory to guide its design process.Therefore,based on the established simplified calculation model of this kind of structure,formulas of the internal forces at the controlled cross sections are derived by the theoretical analysis method.A design method based on the ductility concept of "strong column-weak beam","strong shear-weak bending" and "strong joint-weak members" is established using the formulas.The analysis of design examples showed that,compared with a normal structure,the stiffness mutation at transfer storey can be efficiently reduced and the ductility of a structure can be improved when a SRC beam transfer structure with EDHB was designed by the presented design method.The design method presented by the paper can be the theoretical references for the design of the new type of transfer structure.
引文
[1]吴轶,何铭基,周云.带耗能腋撑竖向不规则短肢剪力墙结构减震性能分析[J].地震工程与工程振动,2010,30(2):105―112.Wu Yi,He Mingji,Zhou Yun,Analysis of aseismicperformance of vertically irregular short-leg pier shearwall structures with energy dissipation haunch brace[J].Earthquake Engineering and Engineering Vibration,2010,30(2):105―112.(in Chinese)
[2]吴轶,何铭基,周云,等.带耗能腋撑型钢混凝土转换结构减震性能分析[J].工程抗震与加固改造,2010,32(2):68―80.Wu Yi,He Mingji,Zhou Yun,et al.Analysis of seismicperformances of SRC transfer structure withsupplemental energy dissipation haunch brace[J].Earthquake Resistant Engineering and Retrofitting,2010,32(2):68―80.(in Chinese)
[3]吴轶,何铭基,杨春,等.基于增量动力分析的带耗能腋撑钢筋混凝土转换结构抗震性能评估[J].地震工程与工程振动,2010,30(5):11―18.Wu Yi,He Mingji,Yang Chun,et al.Seismicperformance of reinforced concrete transfer structurewith energy dissipation haunch brace based onincremental dynamic analysis[J].EarthquakeEngineering and Engineering Vibration,2010,30(5):11―18.(in Chinese)
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[5]张东海.耗能腋撑框架结构新体系研究[D].广州:广州大学,2009.Zhang Donghai.Study on new frame structure withenergy dissipation haunch brace[D].Guangzhou:Guangzhou University,2009.(in Chinese)
[6]黄俊聪.带腋撑钢筋混凝土框架结构抗震性能的基础研究[D].广州:华南理工大学,2010.Hang Juncong.Preliminary study on seismicperformance of reinforced concrete frame structures withhaunch braces[D].Guangzhou:South China Universityof Technology,2010.(in Chinese)
[7]Jinkoo Kim,Youngill Seo.Seismic design of steelstructures with buckling-restrained knee braces[J].Journal of Constructional Steel Research,2003,59:1477―1497.
[8]Te-Hsiu Chen.Retrofit strategy of non-seismicallydesigned frame systems based on a metallic haunchsystem[D].University of Canterbury Christchurch,NewZealand,2003.
[9]周云.耗能减震加固技术与设计方法[M].北京:科学出版社,2006:175―178.Zhou Yun.Energy dissipation retrofit technology anddesign method[M].Beijing:Science Press,2006:175―178.(in Chinese)
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[11]SeismoSoft.SeismoStruct—A computer programme forstatic and dynamic nonlinear analysis of framedstructures[CP].Available from URL:http://www.seismosoft.com,2011.
[12]郑俊光.带耗能腋撑型钢混凝土梁转换结构抗震性能试验研究及设计方法初探[D].广州:广州大学,2011.Zheng Junguang.Experimental study on seismicperformances and preliminary study on design method ofsteel reinforced concrete beam transfer structure withenergy dissipation haunch brace[D].Guangzhou:Guangzhou University,2011.(in Chinese)
[13]CECS160:2004,建筑工程抗震性态设计通则[S].北京:中国计算出版社,2004.CECS160:2004,General rule for performance-basedseismic design of buildings[S].Beijing:ChineseCalculation Press,2004.(in Chinese)
[2]吴轶,何铭基,周云,等.带耗能腋撑型钢混凝土转换结构减震性能分析[J].工程抗震与加固改造,2010,32(2):68―80.Wu Yi,He Mingji,Zhou Yun,et al.Analysis of seismicperformances of SRC transfer structure withsupplemental energy dissipation haunch brace[J].Earthquake Resistant Engineering and Retrofitting,2010,32(2):68―80.(in Chinese)
[3]吴轶,何铭基,杨春,等.基于增量动力分析的带耗能腋撑钢筋混凝土转换结构抗震性能评估[J].地震工程与工程振动,2010,30(5):11―18.Wu Yi,He Mingji,Yang Chun,et al.Seismicperformance of reinforced concrete transfer structurewith energy dissipation haunch brace based onincremental dynamic analysis[J].EarthquakeEngineering and Engineering Vibration,2010,30(5):11―18.(in Chinese)
[4]何铭基.带耗能腋撑型钢混凝土转换结构力学性能研究[D].广州:广州大学,2010.He Mingji.Study on seismic behavior of steel reinforcedconcrete transfer structure with energy dissipationhaunch brace[D].Guangzhou:Guangzhou University,2010.(in Chinese)
[5]张东海.耗能腋撑框架结构新体系研究[D].广州:广州大学,2009.Zhang Donghai.Study on new frame structure withenergy dissipation haunch brace[D].Guangzhou:Guangzhou University,2009.(in Chinese)
[6]黄俊聪.带腋撑钢筋混凝土框架结构抗震性能的基础研究[D].广州:华南理工大学,2010.Hang Juncong.Preliminary study on seismicperformance of reinforced concrete frame structures withhaunch braces[D].Guangzhou:South China Universityof Technology,2010.(in Chinese)
[7]Jinkoo Kim,Youngill Seo.Seismic design of steelstructures with buckling-restrained knee braces[J].Journal of Constructional Steel Research,2003,59:1477―1497.
[8]Te-Hsiu Chen.Retrofit strategy of non-seismicallydesigned frame systems based on a metallic haunchsystem[D].University of Canterbury Christchurch,NewZealand,2003.
[9]周云.耗能减震加固技术与设计方法[M].北京:科学出版社,2006:175―178.Zhou Yun.Energy dissipation retrofit technology anddesign method[M].Beijing:Science Press,2006:175―178.(in Chinese)
[10]李廉锟.结构力学(上册)[M].北京:高等教育出版社,2004:124―170.Li Liankun.Structural mechanics(First Volume)[M].Beijing:High Education Press,2004:124―170.(inChinese)
[11]SeismoSoft.SeismoStruct—A computer programme forstatic and dynamic nonlinear analysis of framedstructures[CP].Available from URL:http://www.seismosoft.com,2011.
[12]郑俊光.带耗能腋撑型钢混凝土梁转换结构抗震性能试验研究及设计方法初探[D].广州:广州大学,2011.Zheng Junguang.Experimental study on seismicperformances and preliminary study on design method ofsteel reinforced concrete beam transfer structure withenergy dissipation haunch brace[D].Guangzhou:Guangzhou University,2011.(in Chinese)
[13]CECS160:2004,建筑工程抗震性态设计通则[S].北京:中国计算出版社,2004.CECS160:2004,General rule for performance-basedseismic design of buildings[S].Beijing:ChineseCalculation Press,2004.(in Chinese)
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