Research On Rigidity And Influencing Factor Of Multi-ribbed Composite Doubled Wall

Multi-ribbed slab structure is a new structural system, characterized by energy-saving and good aseismic performance, whose development prospect is very good. Though much fruitful progress has been achieved in previous study, there still remains a lot to be studied and perfected as a new structural system. The thesis is devoted to studying on the multi-ribbed composite wall, which is the main bearing member in multi-ribbed slab structure. On the basis of the previous researches, experiments, theoretical analysis and numerical simulation by finite are employed to study the lateral rigidity and impact factors of multi-ribbed composite-double wall. The main contents are presented as follows:1,Based on the shear failure mode, the destruction process of without filling the block lattice, the multi-ribbed composite wall and the multi-ribbed composite-double wall is analyzed under the horizontal load, the lateral rigidity influencing factor of multi-ribbed composite wall are discussed, for example: Filling blocks, shear span ratio, axial compression ratio, lattice division iso, thus the information will be provided about the optimize design of the wall and engineering construction.2,According to derivation thinking of the frame filler wall - frame parallel model, interlamination sidesway equal which is under the horizon external force is assumption, in the elastic stage, the model can be consider as a framework system that composed of concealed beams, connecting columns and end frame columns filled with equivalent elastic composite panel, A mechanical model, called frames-elastic composite panel model, is put forward to calculate the internal force and deformation of multi-ribbed slab structure during the elastic stage. At the same time, by using the frames-elastic composite panel model, the earthquake response analysis of a multi-ribbed slab structure is tested.3,Establishing the finite element model, the multi-ribbed composite walls are numerically analyzed, comparison is made between the result of practical calculation and that of theoretical arithmetic. Based on the characteristic of Multi-ribbed slab structure and test of Multi-ribbed composite wall, for improving the capability of the structure, some better suggestions are made about the whole constructional element of Multi-ribbed slab structure.