轴压比对型钢高强混凝土中间层中节点抗震性能影响的试验研究
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摘要
型钢高强混凝土结构不仅具有承载力高、刚度大、抗震性能好、延性好、防火性能高的普通型钢混凝土结构的优点,而且可以有效地减小构件的截面,增大使用空间,减小结构自重,增加房屋高度和增大跨度,提高单位面积的承载力和经济效益。这一系列优点都将促使高强高性能混凝土在型钢混凝土结构中的大量应用。国内外大量的震害表明:框架节点是框架传力的枢纽,是保证结构承载力和刚度的重要部位,是建筑结构抗震中的一个关键部位,节点破坏往往是导致整个框架破坏的关键原因之一,因而对节点的研究在国内外引起了广泛重视。随着型钢混凝土结构体系的发展和应用,有关其节点性能的研究也越来越广泛。由于节点受力及构造复杂,加之高强混凝土本身的脆性等,使得型钢高强高性能混凝土框架节点的理论研究滞后于实际工程应用,目前国内外关于其抗震性能的研究还很少。
本文通过两个按照“强构件,弱节点”进行设计,混凝土强度为分别为76.0MPa与77.1MPa的型钢高强混凝土中节点试件的低周反复加载试验,分析了型钢高强混凝土框架节点的受力特点,得到型钢高强混凝土节点在不同轴压比下的破坏形态、滞回曲线、骨架曲线、延性系数、耗能指标、强度衰减规律和粘结应力的退化等,并在此基础上探讨了轴压比对节点抗震性能的影响;最后由试验结果,给出今后型钢高强混凝土节点抗震研究的建议。
研究成果为型钢高强高性能混凝土结构的弹塑性地震反应分析提供了前提条件,并为合理建立型钢高强高性能混凝土节点的计算理论和设计方法提供理论依据,将促进这种优越的抗震结构体系的推广和应用。
Steel reinforced high-strength concrete structure not only has the advantages of steel reinforced concrete structure such as high load-bearing capacity, high rigidity, good seismic behavior, good ductility and high fire-proof performance, but also can reduce the section of the members effectively, enlarge the available space, lighten the weight of the structure, increase the height and span of the building, and improve the unit load-bearing capacity and economic interest. These merits make the application of high-strength good-performance concrete more popular in steel reinforced concrete structure. It’s illustrated from many earthquake disasters that frame joint is the pivot of load transfer in frames, the important position to ensure the load-bearing capacity and rigidity in structures, and the key spot in seismic buildings. The failure of the joint usually is the main reason that causes the damage of the whole frame. Therefore, widespread attention has been caught on the research of joint both at home and abroad. With the development and application of steel reinforced concrete structure, research on the performance of the joint becomes more and more popular. Due to the complicated load-bearing and constructional detail of the joint and the brittleness of high-strength concrete, the theoretical research of steel reinforced high-strength concrete frame joint falls behind the practical application, and there are still few researches on its seismic behavior at home and abroad in the present.
Failure patterns, hysteretic curves, skeleton curves, ductile coefficients, energy dissipation, strength degeneration, and bonding stress degradation of steel reinforced high-strength concrete joint are obtained by conducting tests of 2 steel reinforced high-strength concrete beam-to-column interior joint designed by the principle of strong-members and weak-joint with concrete strength being 76.0MPa and 77.1MPa under low cyclic reversed loading. Also the load-bearing characteristic of steel reinforced high-strength concrete frame joint is analyzed. Based on these, this paper discusses the effect of axial compression ratio on the seismic performance of the joint. In the end, suggestion on the seismic research of the steel reinforced high-strength concrete joint is provided from the result of the tests.
The research findings provide premise conditions for the elastic-plastic earthquake response analysis of steel reinforced high-strength concrete structure, and give theoretical evidence to properly establish the computing theory and design method of steel reinforced high-strength concrete joint, which is about to promote the popularization and application of the super seismic structure system.
本文通过两个按照“强构件,弱节点”进行设计,混凝土强度为分别为76.0MPa与77.1MPa的型钢高强混凝土中节点试件的低周反复加载试验,分析了型钢高强混凝土框架节点的受力特点,得到型钢高强混凝土节点在不同轴压比下的破坏形态、滞回曲线、骨架曲线、延性系数、耗能指标、强度衰减规律和粘结应力的退化等,并在此基础上探讨了轴压比对节点抗震性能的影响;最后由试验结果,给出今后型钢高强混凝土节点抗震研究的建议。
研究成果为型钢高强高性能混凝土结构的弹塑性地震反应分析提供了前提条件,并为合理建立型钢高强高性能混凝土节点的计算理论和设计方法提供理论依据,将促进这种优越的抗震结构体系的推广和应用。
Steel reinforced high-strength concrete structure not only has the advantages of steel reinforced concrete structure such as high load-bearing capacity, high rigidity, good seismic behavior, good ductility and high fire-proof performance, but also can reduce the section of the members effectively, enlarge the available space, lighten the weight of the structure, increase the height and span of the building, and improve the unit load-bearing capacity and economic interest. These merits make the application of high-strength good-performance concrete more popular in steel reinforced concrete structure. It’s illustrated from many earthquake disasters that frame joint is the pivot of load transfer in frames, the important position to ensure the load-bearing capacity and rigidity in structures, and the key spot in seismic buildings. The failure of the joint usually is the main reason that causes the damage of the whole frame. Therefore, widespread attention has been caught on the research of joint both at home and abroad. With the development and application of steel reinforced concrete structure, research on the performance of the joint becomes more and more popular. Due to the complicated load-bearing and constructional detail of the joint and the brittleness of high-strength concrete, the theoretical research of steel reinforced high-strength concrete frame joint falls behind the practical application, and there are still few researches on its seismic behavior at home and abroad in the present.
Failure patterns, hysteretic curves, skeleton curves, ductile coefficients, energy dissipation, strength degeneration, and bonding stress degradation of steel reinforced high-strength concrete joint are obtained by conducting tests of 2 steel reinforced high-strength concrete beam-to-column interior joint designed by the principle of strong-members and weak-joint with concrete strength being 76.0MPa and 77.1MPa under low cyclic reversed loading. Also the load-bearing characteristic of steel reinforced high-strength concrete frame joint is analyzed. Based on these, this paper discusses the effect of axial compression ratio on the seismic performance of the joint. In the end, suggestion on the seismic research of the steel reinforced high-strength concrete joint is provided from the result of the tests.
The research findings provide premise conditions for the elastic-plastic earthquake response analysis of steel reinforced high-strength concrete structure, and give theoretical evidence to properly establish the computing theory and design method of steel reinforced high-strength concrete joint, which is about to promote the popularization and application of the super seismic structure system.
引文
[1]物理力学专题组.高强混凝土的物理力学性能.钢筋混凝土研究报告论文集[C]1991.河南科学技术出版社. 1985. 5.
[2]日本建筑学会编..铁骨铁筋コンク?ー卜构造计算规准·同解说[S]日本建筑学会1987.
[3]若林实,高田周三.铁骨铁筋コンク?ー卜构造[M].彰国社. 1967.
[4]南宏一.铁骨铁筋コンク?ー卜构造の高层建筑の耐震性能[M].\コンク?ー卜工学, vol. 18. No 3. 1980.
[5]蛙田抢太郎,若林实.铁骨铁筋コンク?ー卜构造·工作物の构造[M].彰国社. 1963.
[6] Atorod Azizinamni etc. Seismic Behavior of Square High-strength Concrete Columns[J]. ACI Structural Journal. 1994. 1.
[7] Shamim A. Sheikh. Confinement of High-strength Concrete Columns[J]. ACI Structural Journal. . 1994. 1.
[8] John H. Thomsen. Lateral Load Behavior of Reinforced Concrete Columns Constructed Using High-strength Materials[J]. ACI Structural Journal. 1994. 5.
[9] Q. Russell, Bridge, Australian Standard for composite construction[J]. New York:Noy HamPhire, 1987.
[10]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].大连理工大学,2000.
[11]陈肇元等.高强混凝土及其应用[M].清华大学出版社. 1992.
[12]型钢混凝土组合结构技术规程. JGJ138-2001. [S]中国建筑工业出版社. 2001.
[13]中华人民共和国行业标准.《钢骨混凝土结构设计规程》YB9082-97[S].中国冶金工业出版社. 1997.
[14]中国工程建筑标准化协会标准.《高强混凝土结构技术规程》CECS104:99[S].中国建筑工业出版社. 1999.
[15]横尾义贯,若林实. H型钢な用钢骨いた铁骨コンク?ー卜に关する实验的研究[C].日本建筑学会论文报告集. No. 17. 1952.
[16]梅村魁,丰福武彦,铁骨铁筋コンク?ー卜柱の破坏试验[C].日本建筑学会论文报告集. No. 17. 1952.
[17]日本建筑学会编.铁骨铁筋コンク?ー卜构造计算标准(第2版)[S].日本建筑学会. 1963.
[18]若林实.耐震构造[M].森倍初版株式会社. 1981.
[19]薛建阳,赵鸿铁,杨勇.型钢混凝土节点抗震性能及构造方法[J].世界地震工程, 2002.
[20]赵世春.钢骨钢筋混凝土结构基本受力行为的研究[D].西安交通大学. 1994.
[21]周正海.高强钢骨混凝土柱抗震性能的试验研究. [D].清华大学. 1997.
[22]李向民.劲性骨架高强混凝土结构性能研究. [D].同济大学. 2001.
[23]叶列平,方鄂华.钢骨混凝土构件的受力性能研究综述.土木工程学报, 2000, 33 .
[24]《用于水泥和混凝土中的粉煤灰》(GB 1596-1991).
[25]陈肇元等.高强混凝土及其应用.清华大学出版社. 1992.
[26]陈肇元.高强混凝土在建筑工程中的应用.建筑结构. 1994(9).
[27]谢承德.高强混凝土性能研究.混凝土及加劲混凝土. 1989(3).
[28]中华人民共和国国家标准.《金属拉伸试验方法》(GB228-87).中国建筑工业出版社. 2002.
[29]中华人民共和国国家标准.《混凝土结构设计规范》GB50010-2002.中国建筑工业出版社. 2002.
[30]付建平,钢筋混凝土框架节点抗震性能与设计方法研究,博士论文, 2002.
[31]唐九如.钢筋混凝土框架节点抗震[M].南京:东南大学出版社, 1995.
[32]过镇海著.钢筋混凝土原理[M」.北京:清华大学出版社, 1999.
[33]赵鸿铁著.钢与混凝土组合结构[M].北京:科学出版社, 2001.
[34]郑德胜.平齐式端板连接组合节点抗震性能的试验研究[D].南京工业大学硕士学位论文, 2005.
[35]建筑抗震试验方法规程(JGJ101-96)[S].南京大学出版社, 1999
[36]王想勤.基于位移和能量的结构抗震性能探讨[M].人民珠江出版社, 2003
[37]周云,徐彤,周福霖.抗震与减震结构的能量分析方法研究与应用[J].地震工程与工程振动, 1999, 19.
[38]中国建筑科学研究院.混凝土结构研究报告选集[C].中国建筑工业出版社,1994
[39]张誉,李向民.钢骨高强混凝土结构的粘结性能研究[J].建筑结构, 1999,7.
[40]邵永健,姚江峰.钢骨混凝土梁中钢骨与混凝土间的粘结性能的试验研究[J].哈尔滨建筑大学学报(自然科学版). 2002, 34.
[41]王连广等.国外型钢混凝土(SRC)结构设计规范基础介绍.建筑结构[J]. 2001. 2.
[42]杨勇,赵鸿铁,薛建阳,型钢混凝土粘结机理与粘结强度的研究[J].西安建筑科技大学学报, 2001, 33(2).
[43]李俊华,赵鸿铁,薛建阳等.型钢高强混凝土柱若干问题的探讨[J].西安建筑科技大学学报, 2004(1).
[44]李俊华.低周反复荷载下型钢高强混凝土柱受力性能研究.[D]西安建筑科技大学. 2005.
[2]日本建筑学会编..铁骨铁筋コンク?ー卜构造计算规准·同解说[S]日本建筑学会1987.
[3]若林实,高田周三.铁骨铁筋コンク?ー卜构造[M].彰国社. 1967.
[4]南宏一.铁骨铁筋コンク?ー卜构造の高层建筑の耐震性能[M].\コンク?ー卜工学, vol. 18. No 3. 1980.
[5]蛙田抢太郎,若林实.铁骨铁筋コンク?ー卜构造·工作物の构造[M].彰国社. 1963.
[6] Atorod Azizinamni etc. Seismic Behavior of Square High-strength Concrete Columns[J]. ACI Structural Journal. 1994. 1.
[7] Shamim A. Sheikh. Confinement of High-strength Concrete Columns[J]. ACI Structural Journal. . 1994. 1.
[8] John H. Thomsen. Lateral Load Behavior of Reinforced Concrete Columns Constructed Using High-strength Materials[J]. ACI Structural Journal. 1994. 5.
[9] Q. Russell, Bridge, Australian Standard for composite construction[J]. New York:Noy HamPhire, 1987.
[10]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].大连理工大学,2000.
[11]陈肇元等.高强混凝土及其应用[M].清华大学出版社. 1992.
[12]型钢混凝土组合结构技术规程. JGJ138-2001. [S]中国建筑工业出版社. 2001.
[13]中华人民共和国行业标准.《钢骨混凝土结构设计规程》YB9082-97[S].中国冶金工业出版社. 1997.
[14]中国工程建筑标准化协会标准.《高强混凝土结构技术规程》CECS104:99[S].中国建筑工业出版社. 1999.
[15]横尾义贯,若林实. H型钢な用钢骨いた铁骨コンク?ー卜に关する实验的研究[C].日本建筑学会论文报告集. No. 17. 1952.
[16]梅村魁,丰福武彦,铁骨铁筋コンク?ー卜柱の破坏试验[C].日本建筑学会论文报告集. No. 17. 1952.
[17]日本建筑学会编.铁骨铁筋コンク?ー卜构造计算标准(第2版)[S].日本建筑学会. 1963.
[18]若林实.耐震构造[M].森倍初版株式会社. 1981.
[19]薛建阳,赵鸿铁,杨勇.型钢混凝土节点抗震性能及构造方法[J].世界地震工程, 2002.
[20]赵世春.钢骨钢筋混凝土结构基本受力行为的研究[D].西安交通大学. 1994.
[21]周正海.高强钢骨混凝土柱抗震性能的试验研究. [D].清华大学. 1997.
[22]李向民.劲性骨架高强混凝土结构性能研究. [D].同济大学. 2001.
[23]叶列平,方鄂华.钢骨混凝土构件的受力性能研究综述.土木工程学报, 2000, 33 .
[24]《用于水泥和混凝土中的粉煤灰》(GB 1596-1991).
[25]陈肇元等.高强混凝土及其应用.清华大学出版社. 1992.
[26]陈肇元.高强混凝土在建筑工程中的应用.建筑结构. 1994(9).
[27]谢承德.高强混凝土性能研究.混凝土及加劲混凝土. 1989(3).
[28]中华人民共和国国家标准.《金属拉伸试验方法》(GB228-87).中国建筑工业出版社. 2002.
[29]中华人民共和国国家标准.《混凝土结构设计规范》GB50010-2002.中国建筑工业出版社. 2002.
[30]付建平,钢筋混凝土框架节点抗震性能与设计方法研究,博士论文, 2002.
[31]唐九如.钢筋混凝土框架节点抗震[M].南京:东南大学出版社, 1995.
[32]过镇海著.钢筋混凝土原理[M」.北京:清华大学出版社, 1999.
[33]赵鸿铁著.钢与混凝土组合结构[M].北京:科学出版社, 2001.
[34]郑德胜.平齐式端板连接组合节点抗震性能的试验研究[D].南京工业大学硕士学位论文, 2005.
[35]建筑抗震试验方法规程(JGJ101-96)[S].南京大学出版社, 1999
[36]王想勤.基于位移和能量的结构抗震性能探讨[M].人民珠江出版社, 2003
[37]周云,徐彤,周福霖.抗震与减震结构的能量分析方法研究与应用[J].地震工程与工程振动, 1999, 19.
[38]中国建筑科学研究院.混凝土结构研究报告选集[C].中国建筑工业出版社,1994
[39]张誉,李向民.钢骨高强混凝土结构的粘结性能研究[J].建筑结构, 1999,7.
[40]邵永健,姚江峰.钢骨混凝土梁中钢骨与混凝土间的粘结性能的试验研究[J].哈尔滨建筑大学学报(自然科学版). 2002, 34.
[41]王连广等.国外型钢混凝土(SRC)结构设计规范基础介绍.建筑结构[J]. 2001. 2.
[42]杨勇,赵鸿铁,薛建阳,型钢混凝土粘结机理与粘结强度的研究[J].西安建筑科技大学学报, 2001, 33(2).
[43]李俊华,赵鸿铁,薛建阳等.型钢高强混凝土柱若干问题的探讨[J].西安建筑科技大学学报, 2004(1).
[44]李俊华.低周反复荷载下型钢高强混凝土柱受力性能研究.[D]西安建筑科技大学. 2005.
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