Study On Mechanical Properties And Computer-aided Design Of Different Types Of Multi-ribbed Composite Walls

As a new type of prefabricatad building multi-ribbed composite board structure is the product of China’s wall reform,building energy conservation,environmental protection and housing In the process of system development,in order to adapt to the high-level strueture of multi-ribbed composite board against lateral stiffness and bearing capacity requirements,good applicability in the multilayer structure of orthogonal is put on the basis of multi-ribbed composite wall structure,puts forward the Orthogonal inclined ribbed composite wall structure,the structural system can not only optimize the wall power transmission path and improve material utilization,both vertical and horizontal bearing capacity.In this paper,the compound wall with diagonal and close ribs is further improved,and the oblique and close ribs composite wall is put forward.Traditional multi-ribbed composite wall and new type of multi-ribbed composite wall struture is relatively complex,design modeling steps trival,bring many difficulties to the engineering application of the structural system,based on the analysi s of all kinds of new construction wall stiffness,and the concept of compound material mechanics is employed to establiish equivalent model is suitable for computer aided design of wall body,strengthen the multi-ribbed composite board mechanics foudation of structure analysis,and significantly improve the computational efficiency and the of the results,The main research contents of this paper are as follows:(1)The effects of height-width ratio,cast-in-place edge component size,block elastic modulus and other factors on the lateral stiffness of three types of multi-ribbed composite walls,su ch as orthogonal forward placement,orthogonal obique placement and oblique alignment,were studied,and the differences in the mechanical performance of the three types of multi-ribbed composite walls were further compared and analyzed.(2)Based on composite material Mori-Tanaka method orthogonal sideways,oblique equivalent elastic plate model of multi-ribbed composite wall,test and verify the reliability of equivalent model,by changing the equivalent model of the me sh size,verify the feasibility of the equivalent model under different at the same time under the ch ange of influence factors of the analysis of the equipalent model calculation,and the simulation results are corrected eventually reasonably come to the equivalent lateral stiffness analysis method;(3)Based on the Python language,the secondary development of ABAQUS was carried out to obtain the modeling program of multi-ribbed composite wall,and the parametric modeling function of two-dimensional simplified model and three-dimensional solid model of orthogonal forward placement,orthogonal oblique placement and ordinary oblique multi-ribbed composite wall was realized,providing new ideas for computer-aided engineering design and finite element analysis.