Nonlinear Finite Element Analysis Of RC Members Strengthened With CFRP In Salt Erosion Environment

Reinforced concrete is with physical and mechanical performances, obtaining materials,project cost, and other advantages. It is widely used in industrial and civil building, trafficengineering, offshore engineering and other fields. However, the durability problems ofreinforced concrete structures often appear in salt erosion environment. This has brought aheavy financial burden to the country. Therefore, it is of great significance to analyze theperformance changes of reinforced concrete structure strengthened with CFRP scientificallyusing nonlinear finite element method in chloride ion erosion.This paper firstly compares and analyzes several common fiber materials andstrengthening methods of concrete structure with them. On the basis of this, I decide to usecarbon fiber reinforced polymer cloth to strengthen concrete members corroded by salt. Andthen using the indoor accelerated test of drying immersion cycles simulates sea watercorrosion. It is used to study and compare reinforced concrete members strengthened withoutor with CFRP in salt erosion environment. This paper uses a total amount of54members,including18beams of obverse section bent: LM1、LM3、LM4、LM5,18beams of obliquesection sheared: LV1、LV3、LV4、LV5, and18short columns under axial compression: Z1、Z3、Z4、Z5. Finally, it is by using the strong nonlinear analysis function of finite elementsoftware ANSYS that the reinforced concrete members strengthened without or with carbonfiber reinforced polymer in salt erosion environment are carried on numerical simulationanalysis scientifically. And it is by comparing finite element calculation results with testresults that the simulation effect of ANSYS is evaluated.