【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.更多还原

【Abstract】 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.更多还原