空间框架梁柱节点伪静力试验研究的实现
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摘要
设计了一种空间框架梁柱节点伪静力加载试验系统,具有如下特点:采用梁端主动加载模式,柱端约束装置采用空间球型支座,梁端约束装置采用自主研发的套箍式球铰支座,在双向加载过程中不产生附加约束;易于采用各梁端作动器连通的同步加载规则,同时适用于伺服与非伺服加载模式。基于能量原理,将空间梁柱节点多梁端复杂滞回关系转化为等效柱端水平力-水平位移滞回关系,以更为合理地评价节点整体抗震性能。多组节点的验证性试验表明,该系统性能良好,适用于空间梁柱节点抗震性能试验研究。
An pseudo-static testing system was designed for beam-to-column joints in three-dimensional(3D) frames.The following characteristics are identified.First,beam end loading pattern is adopted.The newly developed spherical bearings are used as the column end restraining apparatus with outer confiners to prevent additional constraints induced on the beam under bidirectional loading.Second,loading synchronization is easy to be realized by linking all actuators at beam ends.The proposed system is suitable for both servo and non-servo loading modes.Finally,the vertical force-displacement relationships at multi beam ends are equivalently expressed as the story shear force versus story drift relationship of one column based on the energy conservation principle,which ensures the reasonable evaluation of the seismic behavior of connections.Validation tests on several joint specimens demonstrated the merits and applicability of this testing system for experimental research on seismic behavior of beam-to-column joints in three-dimensional(3D) frames.
An pseudo-static testing system was designed for beam-to-column joints in three-dimensional(3D) frames.The following characteristics are identified.First,beam end loading pattern is adopted.The newly developed spherical bearings are used as the column end restraining apparatus with outer confiners to prevent additional constraints induced on the beam under bidirectional loading.Second,loading synchronization is easy to be realized by linking all actuators at beam ends.The proposed system is suitable for both servo and non-servo loading modes.Finally,the vertical force-displacement relationships at multi beam ends are equivalently expressed as the story shear force versus story drift relationship of one column based on the energy conservation principle,which ensures the reasonable evaluation of the seismic behavior of connections.Validation tests on several joint specimens demonstrated the merits and applicability of this testing system for experimental research on seismic behavior of beam-to-column joints in three-dimensional(3D) frames.
引文
[1]JGJ 101—1996建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.(JGJ 101—1996Specification of testing methods for earthquake resistantbuildings[S].Beijing:China Architecture&BuildingPress,1997.(in Chinese))
[2]黄汉炎,梁宇行,李曦新,等.钢管混凝土柱、RC梁板节点拟静力三向加载试验研究[J].建筑结构学报,2001,22(6):3-13.(HUANG Hanyan,LIANGYuhang,LI Xixin,et al.Study on quasi-static 3Dloading test for concrete-filled steel tubular column andRC beam-slab joints[J].Journal of BuildingStructures,2001,22(6):3-13.(in Chinese))
[3]Catherine W F,Arturo E S,Jerome F H,et al.Multi-axial subassemblage testing(MAST)system:description and capabilities[C]//Proceedings of the13th World Conference on Earthquake Engineering.Tokyo,Japan:The International Association forEarthquake Engineering(IAEE),2004:2146-2152.
[4]Amaris A,Pampanin S,Palermo A.Uni and bi-directional quasi static tests on alternative hybridprecast beam column joint subassemblies[C]//Proceedings of the New Zealand Society for EarthquakeEngineering Conference(NZSEE06).Wellington,NewZealand:The New Zealand Society for EarthquakeEngineering(NZSEE),2006:1-8.
[5]Li L,Mander J B,Dhakal R P.Bidirectional cyclicloading experiment on a 3D beam-column joint designedfor damage avoidance[J].Journal of StructuralEngineering,ASCE,2008,134(11):1733-1742.
[6]李旭红,房贞政,陈浩德.预应力混凝土空间框架节点二维拟静力试验研究[J].地震工程与工程振动,2009,29(1):70-77.(Li Xuhong,Fang Zhenzheng,Chen Haode.Experimental study on two-dimensionalloading quasi-static of prestressed concrete spatial framejoint[J].Journal of Earthquake Engineering andEngineering Vibration,2009,29(1):70-77.(inChinese))
[7]Leon R T,Jirsa J O.Bidirectional loading of RC beam-column joints[J].Earthquake Spectra,1986,2(3):320-327.
[8]张连德.钢筋砼空间框架节点抗震性能试验研究[J].建筑结构学报,1987,8(2):1-9.(ZHANGLiande.Experimental research on seismic behavior ofspatial joints in RC frames[J].Journal of BuildingStructures,1987,8(2):1-9.(in Chinese))
[9]陈永春,高红旗,马颖军,等.双向反复荷载下钢筋砼空间框架梁柱节点受剪承载力及梁筋粘结锚固性能的试验研究[J].建筑科学,1995,32(2):13-20.(Chen Yongchun,Gao Hongqi,Ma Yingjun,et al.Experimental study on shear resistance and bondbehavior of RC spatial frames under bi-directional cyclicloading[J].Building Science,1995,32(2):13-20.(in Chinese))
[10]Nishiyama I,Itadani H,Sugihiro K.Bidirectionalseismic response of reinforced concrete column andstructural steel beam subassemblies[C]//Proceedingsof Structural Engineers World Congress.Reston,VA,USA:ASCE,1998:177-182.
[11]Green T P,Leon R T,Rassati G A,Bidirectional testson partially restrained,composite beam-to-columnconnections[J].Journal of Structural Engineering,ASCE,2004,130(2):320-327.
[12]Engindeniz M,Kahn L F,Zureick A H.Performanceof an RC corner beam-column joint severely damagedunder bidirectional loading and rehabilitated with FRPcomposites[C]//ACI Spring 2007 Convention.Farmington Hills,MI,USA:ACI,2007,22-26.
[13]樊健生,周慧,聂建国,梁旭.空间组合节点抗震试验方法的研究[J].结构工程师,2011,27(增刊l):288-293.(Fan Jiansheng,Zhou hui,Nie Jianguo,Liang Xu.Research on the seismic test method ofspatial composite joints[J].Structural Engineers,2011,27(Suppl.1):288-293.(in Chinese))
[14]薛伟辰,姜东升,陈以一,等.预应力混凝土空间节点抗震性能试验研究[J].建筑结构学报,2007,28(1):43-51.(XUE Weichen,JIANG Dongsheng,CHEN Yiyi,et al.Experimental study on seismicperformance of prestressed concrete spatial joints[J].Journal of Building Structures,2007,28(1):43-51.(in Chinese))
[15]GB/T 17955—2000球型支座技术条件[S].北京:中国建筑工业出版社,2000.(GB/T 17955—2000Technical requirements for spherical bearings[S].Beijing:China Architecture&Building Press,2000.(in Chinese))
[16]李万祺.圆钢管混凝土柱环梁式节点抗震性能试验及传力机理分析[D].上海:同济大学,2009.(LIWanqi.Test on seismic behavior and force transfermechanism of ring-beam joint connecting CFT columnand RC beam[D].Shanghai:Tongji University,2009.(in Chinese))
[17]Wang W,Chen Y Y,Li W Q,Leon R T.Bidirectionalseismic performance of steel beam to circular tubularcolumn connections with outer diaphragm[J].Earthquake Engineering&Structural Dynamics,2011,40(10):1063-1081.
[2]黄汉炎,梁宇行,李曦新,等.钢管混凝土柱、RC梁板节点拟静力三向加载试验研究[J].建筑结构学报,2001,22(6):3-13.(HUANG Hanyan,LIANGYuhang,LI Xixin,et al.Study on quasi-static 3Dloading test for concrete-filled steel tubular column andRC beam-slab joints[J].Journal of BuildingStructures,2001,22(6):3-13.(in Chinese))
[3]Catherine W F,Arturo E S,Jerome F H,et al.Multi-axial subassemblage testing(MAST)system:description and capabilities[C]//Proceedings of the13th World Conference on Earthquake Engineering.Tokyo,Japan:The International Association forEarthquake Engineering(IAEE),2004:2146-2152.
[4]Amaris A,Pampanin S,Palermo A.Uni and bi-directional quasi static tests on alternative hybridprecast beam column joint subassemblies[C]//Proceedings of the New Zealand Society for EarthquakeEngineering Conference(NZSEE06).Wellington,NewZealand:The New Zealand Society for EarthquakeEngineering(NZSEE),2006:1-8.
[5]Li L,Mander J B,Dhakal R P.Bidirectional cyclicloading experiment on a 3D beam-column joint designedfor damage avoidance[J].Journal of StructuralEngineering,ASCE,2008,134(11):1733-1742.
[6]李旭红,房贞政,陈浩德.预应力混凝土空间框架节点二维拟静力试验研究[J].地震工程与工程振动,2009,29(1):70-77.(Li Xuhong,Fang Zhenzheng,Chen Haode.Experimental study on two-dimensionalloading quasi-static of prestressed concrete spatial framejoint[J].Journal of Earthquake Engineering andEngineering Vibration,2009,29(1):70-77.(inChinese))
[7]Leon R T,Jirsa J O.Bidirectional loading of RC beam-column joints[J].Earthquake Spectra,1986,2(3):320-327.
[8]张连德.钢筋砼空间框架节点抗震性能试验研究[J].建筑结构学报,1987,8(2):1-9.(ZHANGLiande.Experimental research on seismic behavior ofspatial joints in RC frames[J].Journal of BuildingStructures,1987,8(2):1-9.(in Chinese))
[9]陈永春,高红旗,马颖军,等.双向反复荷载下钢筋砼空间框架梁柱节点受剪承载力及梁筋粘结锚固性能的试验研究[J].建筑科学,1995,32(2):13-20.(Chen Yongchun,Gao Hongqi,Ma Yingjun,et al.Experimental study on shear resistance and bondbehavior of RC spatial frames under bi-directional cyclicloading[J].Building Science,1995,32(2):13-20.(in Chinese))
[10]Nishiyama I,Itadani H,Sugihiro K.Bidirectionalseismic response of reinforced concrete column andstructural steel beam subassemblies[C]//Proceedingsof Structural Engineers World Congress.Reston,VA,USA:ASCE,1998:177-182.
[11]Green T P,Leon R T,Rassati G A,Bidirectional testson partially restrained,composite beam-to-columnconnections[J].Journal of Structural Engineering,ASCE,2004,130(2):320-327.
[12]Engindeniz M,Kahn L F,Zureick A H.Performanceof an RC corner beam-column joint severely damagedunder bidirectional loading and rehabilitated with FRPcomposites[C]//ACI Spring 2007 Convention.Farmington Hills,MI,USA:ACI,2007,22-26.
[13]樊健生,周慧,聂建国,梁旭.空间组合节点抗震试验方法的研究[J].结构工程师,2011,27(增刊l):288-293.(Fan Jiansheng,Zhou hui,Nie Jianguo,Liang Xu.Research on the seismic test method ofspatial composite joints[J].Structural Engineers,2011,27(Suppl.1):288-293.(in Chinese))
[14]薛伟辰,姜东升,陈以一,等.预应力混凝土空间节点抗震性能试验研究[J].建筑结构学报,2007,28(1):43-51.(XUE Weichen,JIANG Dongsheng,CHEN Yiyi,et al.Experimental study on seismicperformance of prestressed concrete spatial joints[J].Journal of Building Structures,2007,28(1):43-51.(in Chinese))
[15]GB/T 17955—2000球型支座技术条件[S].北京:中国建筑工业出版社,2000.(GB/T 17955—2000Technical requirements for spherical bearings[S].Beijing:China Architecture&Building Press,2000.(in Chinese))
[16]李万祺.圆钢管混凝土柱环梁式节点抗震性能试验及传力机理分析[D].上海:同济大学,2009.(LIWanqi.Test on seismic behavior and force transfermechanism of ring-beam joint connecting CFT columnand RC beam[D].Shanghai:Tongji University,2009.(in Chinese))
[17]Wang W,Chen Y Y,Li W Q,Leon R T.Bidirectionalseismic performance of steel beam to circular tubularcolumn connections with outer diaphragm[J].Earthquake Engineering&Structural Dynamics,2011,40(10):1063-1081.
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