多层简单框架结构振动台模型设计
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摘要
考虑振动台的性能参数和振动台试验的可操作性,运用一致相似率,进行一基础滑移隔震五层钢筋混凝土框架结构和屋面附加层的模型设计。采用双层底盘设计,制作模型配筋面积等效,添置尽量多的人工质量。分别采用人工质量模型、忽略重力模型、欠人工质量模型三种方式计算。研究结果表明:配重块的设置是合理的,欠人工质量模型的设计是适当可行的,能降低模型的重力失真效应,把加速度放大系数控制到合理的范围之内,减小噪声影响和试验误差。
Considering the performance parameters of the shaking table and the operability of the shaking table test,the general similitude law was applied to design the test model of a sliding base isolated five-story reinforced concrete frame structure and the roof of the additional layer.The model was designed as a double deck chassis.With equivalent reinforcement area and attached with as many as possible artificial lumped masses.Three kinds of simplifications were used in design calculation,namely,the model with artificial masses,the model neglecting gravity forces and the model with not enough artificial masses.The results show that: the weight set is reasonable and the model of not enough artificial masses is appropriate and feasible.It can reduce the gravitational distortion effect of the model and control the acceleration amplification factor within reasonable limit.It can also reduce the noise influence and experimental error.
Considering the performance parameters of the shaking table and the operability of the shaking table test,the general similitude law was applied to design the test model of a sliding base isolated five-story reinforced concrete frame structure and the roof of the additional layer.The model was designed as a double deck chassis.With equivalent reinforcement area and attached with as many as possible artificial lumped masses.Three kinds of simplifications were used in design calculation,namely,the model with artificial masses,the model neglecting gravity forces and the model with not enough artificial masses.The results show that: the weight set is reasonable and the model of not enough artificial masses is appropriate and feasible.It can reduce the gravitational distortion effect of the model and control the acceleration amplification factor within reasonable limit.It can also reduce the noise influence and experimental error.
引文
[1]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
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[4]朱玉华,吕西林,施卫星.基础隔震房屋模型振动台试验研究[J].地震工程与工程振动,2000,20(3):123-129.ZHU Yu-hua,LXi-lin,SHI Wei-xing.Research onshaking table test of base isolation building[J].EarthquakeEngineering and Engineering Vibration,2000,20(3):123-129.
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[8]杨林,常永平,周锡元.FPS隔震体系振动台试验与有限元模型对比分析[J].建筑结构学报,2008,29(4):66-72.YANG Lin,CHANG Yong-ping,ZHOU Xi-yuan.Contrastiveanalysis of shaking table test and finite element model onfriction pendulum isolated system[J].Journal of BuildingStructures,2008,29(4):66-72.
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[10]霍林生,李宏男,刘猛.调液阻尼器对偏心结构扭转耦联振动控制的试验研究[J].振动与冲击,2011,30(11):198-202.HUO Lin-sheng,LI Hong-nan,LIU Meng.Experimentalstudy on torsionally coupled structural vibration control ofeccentric buildings using tuned liquid dampers[J].Journal ofVibration and Shock,2011,30(11):198-202.
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[12]张敏政.地震模拟试验中相似律应用的若干问题[J].地震工程与工程振动,1997,17(2):52-58.ZHANG Min-zheng.Study on similitude laws for shakingtable tests[J].Earthquake Engineering and EngineeringVibration,1997,17(2):52-58.
[13]周颖,卢文胜,吕西林.模拟地震振动台模型实用设计方法[J].结构工程师,2003,(3):30-38.ZHOU Ying,LU Wen-sheng,lXi-lin.Practical modeldesign method of shaking table tests[J].StructuralEngineers,2003,(3):30-38.
[14]周颖,吕西林,卢文胜.不同结构的振动台试验模型等效设计方法[J].结构工程师,2006,22(4):37-40.ZHOU Ying,lXi-lin,LU Wen-sheng.Shaking table testmodel design in different structures[J].StructuralEngineers,2006,22(4):37-40.
[15]齐娟.满配置与欠配重模型振动台试验技术研究[D].北京:中国建筑科学研究院,2009.
[16]杨旭东.振动台模型试验若干问题的研究[D].北京:中国建筑科学研究院,2005.
[17]混凝土结构设计规范(GB50011—2002)[S].北京:中国建筑工业出版社,2002.
[18]吕西林,施卫星.高层建筑结构模型试验中的若干问题探讨[J].《第14届全国高层建筑结构学术交流会论文集》,1996.LV Xi-lin,SHI Wei-xing.Issues discussion of high-risebuildings in the structural model test[J].The 14th nationalHigh-rise Building Structure Proceedings of AcademicExchange,1996.
[19]李德寅,王邦楣,林亚超.结构模型试验[M].北京:科学出版社,1996.
[20]张敏政,孟庆利,刘晓明.建筑结构的地震模拟试验研究[J].工程抗震,2003,12(4):31-35.ZHANG Min-zheng,MENG Qing-li,LIU Xiao-ming.Buildingstructure’s earthquake simulation experimental research[J].Engineering Anti-seismic,2003,12(4):31-35.
[2]姚谦峰,丰定国,王清敏.滚动隔震结构受力分析[J].西安建筑科技大学学报,1999,31(3):249-252.YAO Qian-feng,FENG Ding-guo,WANG Qing-min.Mechanical analysis of rolling ball isolation system[J].Journal of Xi'an University of Architecture&Technology,1999,31(3):249-252.
[3]江宜城,唐家祥.单层框架建筑模型基础隔震实验研究[J].世界地震工程,1999,15(3):74-78.JIANG Yi-cheng,TANG Jia-xiang.Experimental study on abase-isolated building model[J].World EarthquakeEngineering,1999,15(3):74-78.
[4]朱玉华,吕西林,施卫星.基础隔震房屋模型振动台试验研究[J].地震工程与工程振动,2000,20(3):123-129.ZHU Yu-hua,LXi-lin,SHI Wei-xing.Research onshaking table test of base isolation building[J].EarthquakeEngineering and Engineering Vibration,2000,20(3):123-129.
[5]吕西林,朱玉华,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.lXi-lin,ZHU Yu-hua,SHI Wei-xing.Shaking table test onbuilding models with combined isolation system[J].Chinacivil Engineering Journal,2001,34(2):43-49.
[6]张文芳,李爱群,税国斌.九层房屋基础滑移隔震的试验、分析及应用研究[J].建筑结构学报,2000,12(3):60-68.ZHANG Wen-fang,LI Ai-qun,SHUI Guo-bin.Experiments,theoretical analyses and applied research on base slidingisolation of multi-story buildings[J].Journal of BuildingStructures,2000,12(3):60-68.
[7]黄襄云,周福霖,金建敏.多层隔震与非隔震框剪结构振动台对比试验研究[J].建筑结构,2007,37(8):55-58.HUANG Xiang-yun,ZHOU Fu-lin,JIN Jian-min.Simulatedshaking table test research of Isolated and non-isolatedframe-shear wall structure mode[J].Building Structures,2007,37(8):55-58.
[8]杨林,常永平,周锡元.FPS隔震体系振动台试验与有限元模型对比分析[J].建筑结构学报,2008,29(4):66-72.YANG Lin,CHANG Yong-ping,ZHOU Xi-yuan.Contrastiveanalysis of shaking table test and finite element model onfriction pendulum isolated system[J].Journal of BuildingStructures,2008,29(4):66-72.
[9]杨林,周锡元,苏幼坡.FPS摩擦摆隔震体系振动台试验研究与理论分析[J].特种结构,2005,22(4):43-46.YANG Lin,ZHOU Xi-yuan,SU You-po.Shaking table testresearch and theoretical analysis on friction pendulum isolatedsystem[J].Special Structures,2005,22(4):43-46.
[10]霍林生,李宏男,刘猛.调液阻尼器对偏心结构扭转耦联振动控制的试验研究[J].振动与冲击,2011,30(11):198-202.HUO Lin-sheng,LI Hong-nan,LIU Meng.Experimentalstudy on torsionally coupled structural vibration control ofeccentric buildings using tuned liquid dampers[J].Journal ofVibration and Shock,2011,30(11):198-202.
[11]王鑫.钢筋混凝土模型框架振动台试验分析和抗震性能评估[D].西安:西安建筑科技大学,2006.
[12]张敏政.地震模拟试验中相似律应用的若干问题[J].地震工程与工程振动,1997,17(2):52-58.ZHANG Min-zheng.Study on similitude laws for shakingtable tests[J].Earthquake Engineering and EngineeringVibration,1997,17(2):52-58.
[13]周颖,卢文胜,吕西林.模拟地震振动台模型实用设计方法[J].结构工程师,2003,(3):30-38.ZHOU Ying,LU Wen-sheng,lXi-lin.Practical modeldesign method of shaking table tests[J].StructuralEngineers,2003,(3):30-38.
[14]周颖,吕西林,卢文胜.不同结构的振动台试验模型等效设计方法[J].结构工程师,2006,22(4):37-40.ZHOU Ying,lXi-lin,LU Wen-sheng.Shaking table testmodel design in different structures[J].StructuralEngineers,2006,22(4):37-40.
[15]齐娟.满配置与欠配重模型振动台试验技术研究[D].北京:中国建筑科学研究院,2009.
[16]杨旭东.振动台模型试验若干问题的研究[D].北京:中国建筑科学研究院,2005.
[17]混凝土结构设计规范(GB50011—2002)[S].北京:中国建筑工业出版社,2002.
[18]吕西林,施卫星.高层建筑结构模型试验中的若干问题探讨[J].《第14届全国高层建筑结构学术交流会论文集》,1996.LV Xi-lin,SHI Wei-xing.Issues discussion of high-risebuildings in the structural model test[J].The 14th nationalHigh-rise Building Structure Proceedings of AcademicExchange,1996.
[19]李德寅,王邦楣,林亚超.结构模型试验[M].北京:科学出版社,1996.
[20]张敏政,孟庆利,刘晓明.建筑结构的地震模拟试验研究[J].工程抗震,2003,12(4):31-35.ZHANG Min-zheng,MENG Qing-li,LIU Xiao-ming.Buildingstructure’s earthquake simulation experimental research[J].Engineering Anti-seismic,2003,12(4):31-35.
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