组合深梁填充钢框架滞回性能试验
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摘要
通过1个纯钢框架和2个内填组合深梁的拟静力试验,研究组合深梁对纯钢框架结构的承载能力、延性、滞回特性和耗能能力的影响。试验显示:加载初期,滞回曲线为直线,刚度保持不变;卸载时没有残余变形;屈服后,试件的滞回曲线饱满;骨架曲线有明显的塑性流动阶段,呈现三折线形;填充深梁试件破坏时的层间位移角分别为1/25和1/22;试验表明组合深梁提高了钢框架的初始刚度、屈服荷载和极限承载能力;钢框架的延性和耗能能力都得到了提高。因此,内填深梁钢框架结构抗震性能良好,可将组合深梁作为结构抗震设防的第一道防线。
The Quasi-static tests of one steel frame and two the composite deep beams infilled steel frames were carried out.The effects of the deep beams on the load capacity,ductility,hysteretic property and energy dissipation of pure steel structure were analyzed.It is found that the hysteresis curve is a straight line with the constant of the stiffness at the beginning and without residual deformation.And the hysteresis curve of specimen was full after yielding,and the skeleton curves had a clear plastic flow phase with triple linear.The lateral drifts of the beam specimens at failure were 1/25 and 1/22.The composite deep beams enhance the initial stiffness,yield load and maximum load-bearing capacity of steel frame.Therefore,seismic performance of the composite deep beams is better.
The Quasi-static tests of one steel frame and two the composite deep beams infilled steel frames were carried out.The effects of the deep beams on the load capacity,ductility,hysteretic property and energy dissipation of pure steel structure were analyzed.It is found that the hysteresis curve is a straight line with the constant of the stiffness at the beginning and without residual deformation.And the hysteresis curve of specimen was full after yielding,and the skeleton curves had a clear plastic flow phase with triple linear.The lateral drifts of the beam specimens at failure were 1/25 and 1/22.The composite deep beams enhance the initial stiffness,yield load and maximum load-bearing capacity of steel frame.Therefore,seismic performance of the composite deep beams is better.
引文
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[13]郑宏,杨飞颖,张维刚.钢板深梁屈曲分析[J].建筑科学与工程学报,2007,24(3):31-34.
[14]ZHENG HONG,YANG FEI-YING,ZHANG WEI-GANG.Buckling analysis on steel plate deep beam[J].Journal of Architecture and Civil Engineering,2007,24(3):31-34.
[15]ZHENG HONG,ZHOU XU-HONG.Parameter studyof hysteretic behavior of steel beams in ANSYS[C]//Proceedings of the Second International Conference onModeling and Simulation.Manchester,England,UK:World Academic Press,2009:91-96.
[2]邵建华,顾强,申永康.多层多跨钢板剪力墙水平极限承载力分析[J].重庆建筑大学学报,2008,30(2):71-74.SHAO JIAN-HUA,GU QIANG,SHEN YONG-KANG.Horizontal ultimate bearing capacity analysis ofmulti-story multr-span steel plate shear walls system[J].Journal of Chongqing Jianzhu University,2008,30(2):71-74.
[3]傅剑平,汪锦林,白绍良.工字形T形钢筋混凝土剪力墙抗震抗剪试验[J].重庆建筑大学学报,2008,30(3):22-26.FU JIAN-PING,WANG JIN-LING,BAI SHAO-LIANG.The seismic shear capacity of I shaped and Tshaped reinforced concrete structural walls[J].Journalof Chongqing Jianzhu University,2008,30(3):22-26.
[4]KAHN L F,HANSON R D.Infilled walls forearthquake strengthening[J].J.Struct.Div.ASCE,1979:105(2):283-296.
[5]KESNER K E.Development of seismic retrofit andstrengthening strategies for critical facilities usingengineered cementitious composite materials[D].Cornell University,Ithaca,N.Y.2003.
[6]KEITH KESNER,SARAH L BILLINGTON.Investigation of infill panels made from engineeredcementitious composites for seismic strengthening andretrofit[J].Journal of Structural Engineering,2005,131(11):1712-1720.
[7]米旭峰.带竖缝钢筋混凝土剪力墙的设计与构造研究[J].江苏科技大学学报:自然科学版,2009,23(5):387-390.MI XU-FENG.Design rules and constructionalmeasures of RC slit walled system[J].Journal ofJiangsu University of Science and Technology:NaturalScience Edition,2009,23(5):387-390.
[8]金怀印,许淑芳,周德源.带缝空心R.C.剪力墙结构模型动力特性研究[J].重庆建筑大学学报,2008,30(1):77-82JIN HUAI-YIN,XU SHU-FANG,ZHOU DE-YUAN.Study on the dynamic characteristics for model of slithollow shear wall structure of reinforced concrete[J].Journal of Chongqing Jianzhu University,2008,30(1):77-82.
[9]王恒,余安东,郝际平.带缝钢板剪力墙性能研究[J].钢结构,2007,22(9):70-72.WANG HENG,YU AN-DONG,HAO JI-PING.Analsis on the behaviors of steel shear wall with slits[J].Steel Construction,2007,22(9):70-72.
[10]曹春华,郝际平,王迎春,等.开缝薄钢板剪力墙低周反复荷载试验研究[J].西安建筑科技大学学报:自然科学版,2008,40(1):46-52.CAO CHUN-HUA,HAO JI-PING,WANG YING-CHUN,et al.Cyclic test of thin steel plate shear wallwith slits[J].Journal of Xi'an University ofArchitecture and Technology:Natural Science Edition,2008,40(1):46-52.
[11]郝际平,曹春华,王迎春,等.开洞薄钢板剪力墙低周反复荷载试验研究[J].地震工程与工程振动,2009,9(2):79-85HAO JI-PING,CAO CHUN-HUA,WANG YING-CHUN,et al.Test on thin steel plate shear wall withopening under cyclic loading[J].Journal of EarthquakeEngineering and Enginering Vibration,2009,9(2):79-85.
[12]缪友武,董全利,郭彦林.两侧边开缝钢板剪力墙弹性屈曲分析[J].钢结构,2007,22(9):95-98.MIU YOU-WU,DONG QUAN-LI,GUO YAN-LIN.Elastic bucking behavior of steel plate shear wallsslotted at two edges[J].Steel Construction,2007,22(9):95-98.
[13]郑宏,杨飞颖,张维刚.钢板深梁屈曲分析[J].建筑科学与工程学报,2007,24(3):31-34.
[14]ZHENG HONG,YANG FEI-YING,ZHANG WEI-GANG.Buckling analysis on steel plate deep beam[J].Journal of Architecture and Civil Engineering,2007,24(3):31-34.
[15]ZHENG HONG,ZHOU XU-HONG.Parameter studyof hysteretic behavior of steel beams in ANSYS[C]//Proceedings of the Second International Conference onModeling and Simulation.Manchester,England,UK:World Academic Press,2009:91-96.
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