内嵌墙板对框架抗震性能影响的试验研究
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摘要
通过对空腹和内嵌墙板的钢筋混凝土框架进行低周往复试验,分析柔性连接的内嵌蜂巢夹芯墙板对框架结构抗震性能的影响规律.通过对有、无内嵌墙板的2组框架物理试验结果的对比分析,结果表明:加载初期内嵌墙板即与框架协同作用,提高了框架弹性工作阶段的抗侧移能力;内嵌墙板框架最终极限状态下的承载力高于空腹框架,2组框架的侧移无显著差异;内嵌墙板对框架刚度退化速率和退化程度影响不大,这是由于框架试件的刚度退化主要来源于框架构件混凝土的开裂和钢筋受力变形等.
Through the low-cycle reciprocating test of cancelled-reinforced concrete frame and infilled-wallboard reinforced concrete frame,the influence of flexible-connected infilled-honeycomb-sandwich wallboard on seismic performance of the frame was analyzed.Through comparatively analyzing the physics experiment result of the two type frames,it is concluded that the infilled-wallboard is co-operated with frame in early stage of loading.At the same time the infilled-wallboard enhances the capacity of anti-sidesway of frame in elasticity stage.In ultimate limiting state,the bearing capacity of infilled-wallboard frame is higher than the cancelled frame,and there is no significant difference on anti-sidesway between the two type frames.There is no significant influence on velocity and degree in stiffness-degrade of frame from infilled-wallboard,as the major factors of rigidity-degrade of frame are concrete-crazing and bar-deformation.
Through the low-cycle reciprocating test of cancelled-reinforced concrete frame and infilled-wallboard reinforced concrete frame,the influence of flexible-connected infilled-honeycomb-sandwich wallboard on seismic performance of the frame was analyzed.Through comparatively analyzing the physics experiment result of the two type frames,it is concluded that the infilled-wallboard is co-operated with frame in early stage of loading.At the same time the infilled-wallboard enhances the capacity of anti-sidesway of frame in elasticity stage.In ultimate limiting state,the bearing capacity of infilled-wallboard frame is higher than the cancelled frame,and there is no significant difference on anti-sidesway between the two type frames.There is no significant influence on velocity and degree in stiffness-degrade of frame from infilled-wallboard,as the major factors of rigidity-degrade of frame are concrete-crazing and bar-deformation.
引文
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[2]Cavaleri L,Papia M.A new dynamic identification technique:application to the evaluation of the equiva-lent strut for infilled frames[J].Engineering Struc-tures,2003,25:889-901.
[3]Smith B S,Carter C.A method of analysis for infilled frame[J].Institution of Civil Engineering Proceed-ings,1969,44(1):31-48.
[4]谢伟,夏军武.内嵌墙板-钢框架抗地表变形试验研究[J].华中科技大学学报:城市科学版,2008,25(3):169-171.
[5]谢伟,夏军武,骆泽新,等.填充墙对钢框架在地表变形下作用效应的影响[J].徐州建筑职业技术学院学报,2008,8(1):15-18.
[6]刘玉姝,李国强.带填充墙钢框架结构抗侧力性能试验及理论研究[J].建筑结构学报,2005,26(3):78-84.
[7]朱荣华,沈聚敏.砌填充墙钢筋混凝土框架拟动力地震反应试验及理论分析[J].建筑结构学报,1996,17(4):27-34.
[8]王书祥,杨德建.复合墙体受压承载力的试验研究[J].天津城市建设学院学报,2007(1):65-69.
[9]谢伟.内嵌墙板钢框架结构抗地表变形性能研究[D].徐州:中国矿业大学徐海学院建筑工程系,2008.
[10]张同亿,张兴虎,于庆荣,等.装配整体复合墙抗震性能试验研究[J].西安建筑科技大学学报,2000,32(4):65-69.
[11]刘肖凡,彭少民,李嵩峰.钢框架砌体围护体系试验研究及有限元分析[J].武汉理工大学学报,2004,26(12):52-55.
[12]李长青,易伟建,刘应龙.忽略填充墙刚度对框架结构的抗震安全性能的影响[J].湖南城市学院学报:自然科学版,2005,24(6):14-16.
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