Finite Element Analysis Of Bending Resistance Of Reinforced Concrete Beams Strengthened By High Strength Wire Cable Mesh And Polymeric Mortar

There is a very serious security problems in buildings due to the influence of survey, design, construction, use, material aging, natural disasters and other various reasons, which causes a great threat to people’s life and property safety. Therefore, reinforcement measures are taken to existing buildings in order to lengthen its service life, which is of important social significance. With the development of economy, the focus of the project construction towards to the repair of the existing buildings because of its prominent economic and social benefits and the advantages of low investment, saving space and short construction period. There is a lot of methods of strengthening reinforced concrete structures at present. The Strengthening Technique of high strength wire cable mesh and polymeric mortar which has wide prospect of application and the advantages of resistances to fire、high temperature、 corrosion and aging is introduced in this article.Seven reinforced concrete beam models including one unreinforced beams and six reinforced beams are build based on the flexural strengthening of high strength wire cable mesh and polymeric mortar experiment research of Jianguo Nie, Hanbing Wang, Tianshen Zhang of Tsinghua University by the finite element analysis software ANSYS. And make a comparison between the simulation results and the experimental results. Besides, the calculation formula of flexural capacity of reinforced concrete beams strengthened by high strength wire cable mesh and polymeric mortar is put forward based on the plane cross-section assumption in the article. The calculation results are in good agreement with the simulation results and the experimental results.