砌体模型隔震试验研究
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摘要
针对农村民居低矮房屋抗震能力普遍不足的现状,提出一种新型、经济、简单、可靠的隔震技术:钢筋-沥青复合隔震墩技术.根据相关理论设计了相应的隔震墩试件,进行了砌体模型房屋隔震试验研究.结果表明,在加速度峰值0.3g以下时,隔震墩钢筋处于弹性工作状态,震后能自动复位.隔震墩加速度折减系数在0.14～0.67之间,具有很好的减震效果,并且对高频波形的过滤作用尤为明显.设置隔震墩后上部结构的抗震构造要求可相应降低,将节省的资金用于隔震体系的建设,基本不增加房屋整体造价。
In view of the universal present situation where general rural buildings have low earthquake resistance ability,a new type of practical,economical,simple and reliable seismic technology called steel-asphalt composite isolation pier was put forward.Specimens were made according to the correlation theory,and experiments on a masonry model were also carried out.The tests have shown that the steel of the isolation pier works in the elastic range when the peak value of the acceleration is below 0.3 g.The acceleration reduction factor of the isolation pier is between 0.14-0.67 when different peak values of the loading condition are input,and good damping effect can be obtained because most of the energy has been absorbed by the isolation pier especially to high frequency loading wave.The details of the seismic design of rural masonry structure can be reduced,and the funds thus saved can be used for this new steel-asphalt composite isolation pier.In the end,the total cost of the houses does not increase.
In view of the universal present situation where general rural buildings have low earthquake resistance ability,a new type of practical,economical,simple and reliable seismic technology called steel-asphalt composite isolation pier was put forward.Specimens were made according to the correlation theory,and experiments on a masonry model were also carried out.The tests have shown that the steel of the isolation pier works in the elastic range when the peak value of the acceleration is below 0.3 g.The acceleration reduction factor of the isolation pier is between 0.14-0.67 when different peak values of the loading condition are input,and good damping effect can be obtained because most of the energy has been absorbed by the isolation pier especially to high frequency loading wave.The details of the seismic design of rural masonry structure can be reduced,and the funds thus saved can be used for this new steel-asphalt composite isolation pier.In the end,the total cost of the houses does not increase.
引文
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[3]尚守平,石宇峰.钢筋-沥青复合隔震层中沥青油膏隔震性能研究[D].长沙:湖南大学土木工程学院,2010.SHANG Shou-ping,SHI Yu-feng.Research on seismic isola-tion performance of asphalt ointment of steel-asphalt isolationlay[D].Changsha:Civil Engineering College Hunan Universi-ty,2010.(In Chinese)
[4]尚守平,姚菲,刘可.一种新型隔震层的构造及振动台试验研究[J].土木工程学报,2011,44(2):36-41.SHANG Shou-ping,YAO Fei,LIU Ke.Studyofthestructureo-fanewtypeofisolation layer and shaking table test[J].ChinaCivil Engineering Journal,2011,44(2):36-41.(In Chinese)
[5]尚守平,周志锦.一种钢筋-沥青复合隔震层研究[D].长沙:湖南大学土木工程学院,2009.SHANG Shou-ping,ZHOU Zhi-jin.Research on seismic isola-tion performance of steel-asphalt isolation lay[D].Changsha:Civil Engineering College Hunan University,2009.(In Chi-nese)
[6]窦远明.砂垫层隔震性能的试验研究[J].建筑结构学报,2005,26(1):125-128.DOU Yuan-ming.An experimental study of isolating propertiesof sand cushion[J].Ordnance Industry Autonmation,2005,26(1):125-128.(In Chinese)
[7]杨佑发,周福霖.隔震结构地震反应分析的实用计算方法[J].世界地震工程,2000,16(1):41-46.YANG You-fa,ZHOU Fu-lin.A practical method for analysisof seismic response of base-isolated structures[J].World In-formation on Earthquake Engineering,2000,16(1):41-46.(In Chinese)
[8]刘光文.隔震结构设计加速度反应谱的取值研究[J].振动与冲击,2010,29(4):180-188.LIU Guang-wen.Modified equation for long period part of de-sign response spectrum of an isolated structure[J].Journal ofVibration And Shock,2010,29(4):180-188.(In Chinese)
[2]尚守平,刘可.基础隔震的试验研究[D].长沙:湖南大学土木工程学院,2010.SHANG Shou-ping,LIU Ke.Experimental study on base iso-lation[D].Changsha:Civil Engineering College Hunan Univer-sity,2010.(In Chinese)
[3]尚守平,石宇峰.钢筋-沥青复合隔震层中沥青油膏隔震性能研究[D].长沙:湖南大学土木工程学院,2010.SHANG Shou-ping,SHI Yu-feng.Research on seismic isola-tion performance of asphalt ointment of steel-asphalt isolationlay[D].Changsha:Civil Engineering College Hunan Universi-ty,2010.(In Chinese)
[4]尚守平,姚菲,刘可.一种新型隔震层的构造及振动台试验研究[J].土木工程学报,2011,44(2):36-41.SHANG Shou-ping,YAO Fei,LIU Ke.Studyofthestructureo-fanewtypeofisolation layer and shaking table test[J].ChinaCivil Engineering Journal,2011,44(2):36-41.(In Chinese)
[5]尚守平,周志锦.一种钢筋-沥青复合隔震层研究[D].长沙:湖南大学土木工程学院,2009.SHANG Shou-ping,ZHOU Zhi-jin.Research on seismic isola-tion performance of steel-asphalt isolation lay[D].Changsha:Civil Engineering College Hunan University,2009.(In Chi-nese)
[6]窦远明.砂垫层隔震性能的试验研究[J].建筑结构学报,2005,26(1):125-128.DOU Yuan-ming.An experimental study of isolating propertiesof sand cushion[J].Ordnance Industry Autonmation,2005,26(1):125-128.(In Chinese)
[7]杨佑发,周福霖.隔震结构地震反应分析的实用计算方法[J].世界地震工程,2000,16(1):41-46.YANG You-fa,ZHOU Fu-lin.A practical method for analysisof seismic response of base-isolated structures[J].World In-formation on Earthquake Engineering,2000,16(1):41-46.(In Chinese)
[8]刘光文.隔震结构设计加速度反应谱的取值研究[J].振动与冲击,2010,29(4):180-188.LIU Guang-wen.Modified equation for long period part of de-sign response spectrum of an isolated structure[J].Journal ofVibration And Shock,2010,29(4):180-188.(In Chinese)
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