Numerical Analysis Research On The Behavior Of Adhesive Post-installed Reinforcement Anchorage

Post-installed reinforcement is a widely-used connection technology in the fields of strengthening and retrofitting engineering. Currently, results of investigation are mostly about tension behavior of single anchor, while in practice anchor works under more complicate condition.ANSYS is the structural analytic software which is based on the theory of finite element and can be used in structural analysis, hydrodynamics, both the study of electric field , sound field and magnetic field. The big universal analytic software is developed by the biggest software company, ANSYS, which is in U.S.A. It can share and exchange the data with other software as CAD. And most importantly, the software can make the fast calculation to be fact to convenient for the analysis for civil engineering"The numerical analysis" studies on lots of solution for mathematics questionand the numerical computational method. Especially it suits the method and the algorithm which realizes to the computer. It mainly includes the numerical Approaches of function, numerical differentiation and numerical integration, nonlinear equation value solution, value algebra, ordinary differential equation numerical solution and so on.With lots of literature, information and experience experimental data both home and abroad, this paper mainly discuss on some problem of post-installed reinforcement which is currently practical used in civil engineering project. According to the comparison between the chemical model which is based on the theory of the non-linear constitutional relation and the linear constitutional relation, we can find that the former is closer to reality than the latter. And the intensity value can be achieved along the part of bar which is in concrete as long as the part of chemical adhesive, where stress attain maximum value, has not destructed. This paper also study and discuss on the technique and behavior including the load carrying capacity of post-installed reinforcement, which is based on nonlinear constitution relation of chemical adhesive, through finite element analysis. And what will be considered in the simulative test are the strength of concrete,the length of embedded bar,the diameter of the bar,the least distance from bars to the edge of the solid and the distance between bars. These entire factors will affect the behavior of post-installed reinforcement. And something about caking anchor mechanism of post-installed reinforcement,the destruction shape, the supporting capacity will be studied by a quite thorough analysiso At last, a design formula is present.