Load-Bearing Mechanism And Influencing Factors Of The Infilled Frames In Multi-ribbed Slab Wall

Multi-ribbed slab wall is the main load-bearing members of the Multi-ribbed slab wall system. Significant staged results have been achieved in the previous study.The study of the mechanical performance and the infill-frame interaction mechanism of the infilled frame is the basic work in the theoretical and applied research on the multi-ribbed slab wall.Based on the test and the synergism between the infill and the frame, considering material non-linearity and geometric non-linearity, a calculation model about the infilled frames is formulated by setting contact elements,assuming that contact stress exists between the frame and the infill, contact stress relates the components of contact pressure and friction shear stress ,contact displacement includes the relative tangent and contact open distance, contact element (surface-contact element) involves deformable surface (flexible surface) and rigid surface(target surface), then the simulation about the contact and sliding between three-dimensional target surface and deformable surface(flexible surface) is carried out.The mechanical performance ,the synergic mechanism , the law of material crack and the distribution of contact surface stress of various infilled frames is studied through numerical analysis, then the results are compared with the test results. It partly reveals the internal mechanism of the test.The infill affecting the anti-cracking and deformability of the structure, the interface sticking property between the infill and the frame affecting the structure, the frame section characteristics affecting the structure are investigated by using non-linear finite element method, which provide a certain reference in wall panels' practical calculation and disign...