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本文提出一个弹性力学与结构力学的混合计算法,利用弹性薄板弯曲理论及剪力分配法概念,解决装配式钢筋混凝土板组如何分配承担集中荷载问题。文中采用板缝间为铰接的假设,即认为各板之间的板缝不承受弯矩,只能传递剪力。同时,根据工程实际常用的楼板宽长比,在理论推导过程中进行了一些简化,并制成表格,便于设计时应用。文中通过实例,将理论计算与试验结果作了比较,可以看到两者的结果是相当符合的,从而表明了该法的精确性。
This paper proposes a hybrid calculation method for elastic mechanics and structural mechanics. It uses elastic thin plate bending theory and shear distribution method concepts to solve the problem of how prefabricated reinforced concrete slab groups are allocated to bear the concentrated load. In this paper, the assumption that the plate joints are articulated is used. That is to say, the plate joints between the plates do not bear bending moments and can only transmit shear forces. At the same time, according to the ratio of floor width to length commonly used in engineering, some simplifications are made in the process of theoretical derivation, and tables are made to facilitate the application at design time. In the article, by comparing the theoretical calculations with the experimental results by examples, we can see that the two results are quite consistent, thus demonstrating the accuracy of the method.