EXPERIMENTAL RESEARCH ON THE R. C. ECCENTRIC IN-PLANE BEAM-THIN WALL JOINT

Six in-plane beam-thin wall joints were tested under reversed cyclic loading,considering various design parameters such as longitudinal bar's anchorage condition,stirrup reinforcement ratio of beam within the wall and beam height.Using the nonlinear FEM,numerical simulations of the test specimens and parametric analysis were performed.There is a good agreement between the numerical simulations and the test results.Given a certain straight anchorage length,both the 90-degree hooked anchorage of longitudinal bars and larger stirrup ratio of the beam within the wall can improve the carrying capacity and ductility of the joint,but the 90-degree hooked anchorage is better as far as the overall performance is concerned.The longitudinal bar's straight anchorage length is the basic guarantee of the effective force transmission.The carrying capacity,deformation and ductility of joint can be ensured with the rational stirrup ratio and anchoring method of the joint.