模型试验尺寸误差对结构周期分析的影响与修正
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摘要
对同济大学土木工程防灾国家重点实验室的六个振动台试验模型进行测量,得到了大量试验模型尺寸误差数据.用偏度、峰度检验法验证了尺寸误差服从正态分布,提出建立有限元模型时考虑尺寸误差分布的方法.利用有限元软件计算了包括框架结构和框剪结构在内的6个具有尺寸误差的模型,并根据计算结果,总结规律,给出了考虑尺寸误差的结构基本周期的修正公式,以修正试验结果.
The dimension of six shaking table test models fabricated by the State Key Laboratory of Disaster Prevention in Civil Engineering in Tongji University was measured.The dimension error is computed and presented.By the skewness-kurtosis testing method,the dimension error is verified to obey normal distribution.A new method is proposed with the consideration of the dimension error in the finite element analysis of structures.An analysis is made of the effect of the dimension error on the natural periods of structure.And the error correction formulas are put forward for the natural periods of frame structure and frame-shear wall structure respectively.
The dimension of six shaking table test models fabricated by the State Key Laboratory of Disaster Prevention in Civil Engineering in Tongji University was measured.The dimension error is computed and presented.By the skewness-kurtosis testing method,the dimension error is verified to obey normal distribution.A new method is proposed with the consideration of the dimension error in the finite element analysis of structures.An analysis is made of the effect of the dimension error on the natural periods of structure.And the error correction formulas are put forward for the natural periods of frame structure and frame-shear wall structure respectively.
引文
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[3]同济大学土木工程防灾国家重点实验室.深圳商隆大厦塔楼模型振动台试验研究报告[R].上海:同济大学土木工程防灾国家重点实验室,1997.State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University.Shaking table model test report of ShenzhenShanglong building[R].Shanghai:State Key Laboratory for Dis-aster Reduction in Civil Engineering,Tongji University,1997.
[4]同济大学土木工程防灾国家重点实验室.深圳京广中心模型振动台试验研究报告[R].上海:同济大学土木工程防灾国家重点实验室,1997.State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University.Shaking table model test report of ShenzhenJingguang Center building[R].Shanghai:State Key Laboratoryfor Disaster Reduction in Civil Engineering,Tongji University,1997.
[5]同济大学土木工程防灾国家重点实验室.交银金融大厦模型振动台试验研究报告[R].上海:同济大学土木工程防灾国家重点实验室,1998.State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University.Shaking table model test report of Jiaoyin Fi-nance building[R].Shanghai:State Key Laboratory for DisasterReduction in Civil Engineering,Tongji University,1998.
[6]徐磊,施卫星,张钧.超高层结构整体模型振动台试验研究[J].建筑结构学报,2001,22(5):15.XU Lei,SHI Weixing,ZHANG Jun.Simulated earthquake experi-ment study of a high-rise building structure model[J].Journal ofBuilding Structures,2001,22(5):15.
[7]熊伟.大体量、大跨度高层公共建筑抗震性能研究[D].上海:同济大学土木工程与防灾研究所,1999.XIONG Wei.Seismic behavior analysis of large-span high-risepublic building structures[D].Shanghai:Research Institute ofStructure Engineering and Disaster Reduction,Tongji University,1999.
[8]潘越.八度区六层异形柱框架抗震性能模型振动台试验研究[D].上海:同济大学土木工程与防灾研究所,2003.PAN Yue.Shaking table model test of a frame structure withspecial-shaped columns[D].Shanghai:Research Institute ofStructure Engineering and Disaster Reduction,Tongji University,2003.
[9]盛骤,谢式千,潘承毅.概率论与数理统计[M].北京:高等教育出版社,2001.SHENG Zhou,XIE Shiqian,PAN Chengyi.Probability theory andmathematical statistics[M].Beijing:Higher Education Press,2001.
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