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针对预制带肋底板混凝土双向叠合板按单向板设计时传力模式不合理,以及采用正交构造异性板方法求解时计算量大、不便于工程设计采用的问题,通过引入等效跨度比,提出了一种实用弹性计算方法:将双向叠合板的形状按等效跨度比修正后视作各向同性板计算。采用该实用弹性计算方法,仅需知道等效跨度比便可查用各向同性板的弹性计算系数进行双向叠合板的设计。
For the prefabricated ribbed concrete slab, the force transfer mode is not reasonable when it is designed as a one-way slab, and it is not easy for the engineering design to solve the problem when using the method of orthogonal construction of heterosexual plates. By introducing equivalent span ratio, A practical elastic calculation method is proposed: the shape of the bidirectional composite plate is calculated as the isotropic plate after the equivalent span ratio is modified. By using this practical elastic calculation method, we only need to know the equivalent span ratio to check the elastic calculation coefficient of the isotropic plate for bidirectional composite plate design.