APPLICATION OF THE SIMPLIFIED MATHEMATICAL MODEL OF RIGID FRAME WITH DIAGONAL STRUT TO MULTI-RIBBED WALL SLAB

摘要

The simplified mathematical model of rigid frame with diagonal strut was employed to analyze the main factors which affect the mechanical properties and failure modes of the multi-ribbed wall slab.The influences of the diagonal cracks in the plate in the stiffness and the carry capacity of the prestressed reinforced concrete girders were investigated.Tow finite-element models, including entity unit model and beam element model, were used.The results show that the calculated results by the rigid frame-beam model are safer than those by the entity unit model.