现浇混凝土双向密肋空腔楼盖动力性能研究
首发时间:2010-04-30
摘要:本文依据连续化分析方法,将现浇混凝土双向密肋空腔楼盖等效为夹层板模型,运用lagarange方程推导楼盖的运动微分方程,应用样条配点法求解方程,得出挠度及弯矩的级数解,通过算例编制matlab程序求出结构的自振频率和竖向地震作用下挠度及弯矩的动力响应值,并与有限元软件的计算结果相比较,二者吻合较好,从而证明了该理论分析方法的可行性。
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The study of dynamic performance of the cast-in-place concrete Fabricated Hollow-ribbed floor
Abstract:According to continuous analysis method, In this paper, The cast-in-place concrete Fabricated Hollow-ribbed floor is equivalent to the sandwich plate. The equations of the motion of the floor are obtained by Largrange equation, which were solved by spline collocation method. The natural vibration frequency and the dynamic response result of the deflection and moment, which were obtained under vertical earthquake, are solved by compiling matlab program. The result is proved to be in good agreement with the finite element computation result, thereby proves this is a feasible method.
Keywords: Fabricated Hollow-ribbed floor The equations of the motion dynamic response
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