Experimental Study On Seismic Behaviors Of Inclined Column-shaped & Beam-shaped Transfer Floor In Framed Short-leg Shear Wall Structures

This thesis carries out the pseudo static test, which are subjected to vertical loads and horizontal cyclic loads, respectively on two specimens, including the framed short-leg shear wall inclined column-shaped transfer plane framework and the same dimension beam-shaped transfer structure frame. Then, observe and record the cracking load, yield load and the development of cracks, measure the structure distortion and strain of steel bars, describe amply the two specimens' whole devastation process and the strain of steel bars development regulation and finally sum up the two kinds of transfer structures' basic behavior characters. At the same time, contrast and analyze the ductility, energy dissipation capability, and intensity & stiffness attenuation of the two specimens, according to the experiment data. Appraise the two models' seismic behavior and bring forward the aseismatic design ideas of the inclined column-shaped transfer structure.The study results indicate that the mechanical behaviors characters of the inclined column-shaped transfer structure are similar to that of a simple truss, including: ①The load transfer is direct, specific, the transfer route is clear and the structure is simple. ② It can reduce the beam dimension effectively, make full use of the story height, and is easy to satisfy the architecture function demands. ③Lateral rigidity of transfer-stories is large, making it difficult to engender structure weakness stories. ④Compared with the beam-shaped transfer structure, it is easier to implement the aseismatic design principles, including "strong column and weak beam, strong shearing and weak bend, stronger nodes". ⑤If the design is reasonable, the inclined column-shaped transfer structure can get better seismic behavior. So, it is a new type transfer structure worthy of popularizing.