The Study On Casting Slab Reinforcement To The Frame Beam Straight Sections Of Seismic Bearing Capacity

Reinforced concrete frame structure in a number of the earthquake have shown "strong beam and weak column" of the failure modes, resulting in structural damage, a large number of engineering case shows:the floor of the reinforcement, orthogonal beam frame stiffness and so destruction of a impact, so the floor to carry out reinforcement, stiffness of the slab orthogonal beam column joint research with the more important theoretical and engineering significance. This will be reinforced concrete frame structures in seismic design of "strong column and weak beam" theory of the factors affecting the analysis and experimental study.On two reinforced concrete beams and slabs, columns side nodes cyclic loading of the pseudo-static test and finite element analysis the following conclusions(1) The casting slab reinforcement, orthogonal beam stiffness on the actual beam of reinforced concrete frame upright section beam seismic bearing capacity of slab in the framework of the mechanism of joint work; orthogonal beam stiffness will affect the frame beam deflection size.(2) simulated by finite element analysis under cyclic loading of reinforced concrete beams, columns Beam column joint node and the stress, crack distribution and failure;slab reinforcement were considered, the effective flange width, orthogonal beam stiffness Seismic bearing capacity and deformation properties and the experimental results were compared.