空间结构初始几何缺陷分布规律的实测数据及统计参数-建筑结构 关键词］稳定；初始几何缺陷；实测数据；假设检验；正态分布 [gap=1060]Keywords:stability; initial geometrical imperfections; measured data; assumption; normal distribution
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因此对有初始几何缺陷的冷却塔风筒壁的分析研究是很有必要的。
Therefore, it is of great significance to study the cooling tower shell with initial geometrical imperfections.
结果表明，考虑初始几何缺陷会使得拱桥的主要自振频率降低，振型发生改变。
Results showed that the defects in the arch decreased the frequency of free vibration and changed the modes.
在有限元模拟中，分析了初始几何缺陷对壳体起皱的临界压力和起皱形态的影响。
The effect of the initial geometrical imperfection on the buckling critical pressure and buckling model has been taken into account in the finite element simulation.
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