مدل شبیه سازی بهبود یافته از دیوار برشی سازه های ساختمان بلند

To simulate shear wall of tall building structures, some kinds of calculation methods towards Multi-Vertical-Line-Element Model are discussed in detail. A more reasonable element stiffness matrix and a improved Multi-Vertical-Line-Element Model are given. Combined with hysteretic axial model and hysteretic shear model, nonlinear analysis of a shear wall is put through. The calculation result indicates that the improved model has relatively well accuracy compared with test result.

The nonlinear analysis element model of reinforced concrete wall can be divided into two types: one is based on solid mechanics’ microscopic model, the other is macroscopic model with one component as a unit. With the development of computer science , the microscopic method shows its more and more powerful vitality , the analytic range of this method has been developed from structural component to simple structure , and even to earthquake response of three-dimensional structure under reciprocity relationship between bars of the concrete under complex stress state are still in research stage presently , and moreover to analyse the earthquake response of complex structural system is a gigantic numerical

(1) This thesis revises the element stiffness matrix of Multi-Vertical-Line-Element Model, disperses shearing-bending deformation into shearing deformation and none pure bending deformation, after the revision, the element stiffness matrix is more in accordance with the stress mechanism of shear wall. (2) This thesis put forward the Multi-Vertical-Line-Element Model belongs to macroscopic element model, the account case demonstrated that the improved Multi-Vertical-Line-Element Model has the advantage of less calculated work, the value of calculation is well goodness of fit to testing result, to demonstrate that the method concerning in this thesis is available.