组合隔震砌体“等代结构”模型试验方法初探
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摘要
某六层砌体结构采用橡胶支座与叠层橡胶滑板支座并联组合作为隔震层。考虑到振动台的性能及砌体结构模型试验的特点,从某砌体结构中提取部分结构作为等代结构,满足原整体结构作用及效应相似的要求;然后对等代结构进行缩尺模型设计、制作与试验。试验分为隔震和非隔震两阶段,通过对比其动力反应,由模型试验结果分析原型结构的抗震性能,并将试验结果与数值模型分析结果进行了比较,表明该隔震结构试验较好地揭示了隔震结构的反应特点,采用"等代结构"进行模型振动台试验是合理和有效的。
Isolator layer combined with rubber bearings and laminated rubber sliding bearings was applied to a six-story masonry structure.For the restriction of the shaking table's performance and the particularity of masonry structure model test,a substitute structure was developed to represent the original masonry structure,which should meet the similarity of actions and effects between them,then a scaled model which simulate the substitute structure was designed,manufactured and tested.The test was performed in two phases—with isolator and without isolator.By comparing both dynamic responses,analyzing the seismic performance of the original structure through model test results,and comparing the calculated data by software with the test data,it was proved that the responses of the isolated model are satisfied,and the approaches for the "Equivalent Structure" model test are reasonable and effective.
Isolator layer combined with rubber bearings and laminated rubber sliding bearings was applied to a six-story masonry structure.For the restriction of the shaking table's performance and the particularity of masonry structure model test,a substitute structure was developed to represent the original masonry structure,which should meet the similarity of actions and effects between them,then a scaled model which simulate the substitute structure was designed,manufactured and tested.The test was performed in two phases—with isolator and without isolator.By comparing both dynamic responses,analyzing the seismic performance of the original structure through model test results,and comparing the calculated data by software with the test data,it was proved that the responses of the isolated model are satisfied,and the approaches for the "Equivalent Structure" model test are reasonable and effective.
引文
[1]史金楠R I.工程隔震概论[M].北京:地震出版社,1996.Skinner R I.An Introduction to Seismic Isolation[M].Beijing:Seismologic press,1996.(in Chinese)
[2]胡锡勇.基于结构效应相似的模型试验方法研究应用[D].上海:同济大学,2011.Hu X Y.Study and Application of Model Test MethodBased on Similarity of Structural Effects[D].Shang-hai:Tongji University,2011.(in Chinese)
[3]朱玉华.建筑结构不同基础隔震系统的试验与分析[D].上海:同济大学,2001.Zhu Y H.Shaking Table Tests and Analysis on Build-ing Structures with Various Base Isolated Systems[D].Shanghai:Tongji University,2001.(in Chi-nese)
[4]中华人民共和国建设部.GB50003—2001砌体结构设计规范[S].北京:中国建筑工业出版社,2001.Ministry of Housing and Urban-Rural Developmet ofthe People’s Republic of China.GB 50003—2001Code for Design of masonry Structure[S].Beijing:China Architecture&Building Press,2001.(in Chi-nese)
[5]杨树标,马裕超,李旭光,等.复合隔震结构模型振动台试验研究[J].地震工程与工程振动,2010,30(1):142-146.Yang S B,Ma Y C,Li X G,et al.Study on ShakingTable Test Model for Composite Isolation Structures[J].Journal of Earthquake Engineering and Engineer-ing Vibration,2010,30(1):142-146.(in Chinese)
[6]朱玉华,吕西林,施卫星.组合基础隔震房屋模型振动台试验研究[J].土木工程学报,2001,34(2):43-49.Zhu Y H,Lv X L,Shi W X.Shaking Table Test onBuilding Models With Combined Isolation System[J].Civil Engineering Journal,2001,34(2):43-49.(inChinese)
[2]胡锡勇.基于结构效应相似的模型试验方法研究应用[D].上海:同济大学,2011.Hu X Y.Study and Application of Model Test MethodBased on Similarity of Structural Effects[D].Shang-hai:Tongji University,2011.(in Chinese)
[3]朱玉华.建筑结构不同基础隔震系统的试验与分析[D].上海:同济大学,2001.Zhu Y H.Shaking Table Tests and Analysis on Build-ing Structures with Various Base Isolated Systems[D].Shanghai:Tongji University,2001.(in Chi-nese)
[4]中华人民共和国建设部.GB50003—2001砌体结构设计规范[S].北京:中国建筑工业出版社,2001.Ministry of Housing and Urban-Rural Developmet ofthe People’s Republic of China.GB 50003—2001Code for Design of masonry Structure[S].Beijing:China Architecture&Building Press,2001.(in Chi-nese)
[5]杨树标,马裕超,李旭光,等.复合隔震结构模型振动台试验研究[J].地震工程与工程振动,2010,30(1):142-146.Yang S B,Ma Y C,Li X G,et al.Study on ShakingTable Test Model for Composite Isolation Structures[J].Journal of Earthquake Engineering and Engineer-ing Vibration,2010,30(1):142-146.(in Chinese)
[6]朱玉华,吕西林,施卫星.组合基础隔震房屋模型振动台试验研究[J].土木工程学报,2001,34(2):43-49.Zhu Y H,Lv X L,Shi W X.Shaking Table Test onBuilding Models With Combined Isolation System[J].Civil Engineering Journal,2001,34(2):43-49.(inChinese)
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