Research on the vertical bearing capacity and stability of the composite wall in multi-ribbed slab structures

By researching the 1/2-scaled model walls under monotonic vertical loading,the authours of this paper aim to fulfill in this paper the following points: discussing the mechanical properties and simplified calculation model of multi-ribbed composite wall under vertical loading;analyzing the bearing capacity formula of multi-ribbed composite wall under vertical loading;providing calculated height according to characteristics of supporting conditions of multi-ribbed composite wall;presenting the influence coefficients of depth-width ration due to end frame columns;and modifying the limit value of depth-width ration.Finally,the formula for depth-width ration is deduced.It has been shown both from the theory and the experiment that the calculation model is more approximate to experimental results.As the rigidity of the beam and the height is taken into account.The formula for depth-width ration can meet the stability of multi-ribbed composite wall in the multi-ribbed slab structure.