Experimental As Well As Digital Modeling Research On RC Columns Wrapped With Steel Wire Meshwork And Reinforced By High Strength Mortar Spray

Due to aging and utilizing condition changing, RC structures are often needed to be strengthened. RC structures wrapped with steel wire meshwork and reinforced by high strength mortar spray is proved to be a new effective reinforced method not only by the similarity of material behavior to objects strengthened, but also its endurance and easy installing. Observing the mechanics and effect of the new strengthening method with test and Finite Element Method is supposed to offer a guide for technology and become valuable in theory and practice. Both compression test, including four reinforced and three control specimens, and shear-compression test, including nineteen reinforced and four control specimens are being studied in this paper. The research on the curves of load-strain, load-deflection and hysteretic shows that the transverse translation of the reinforced columns is well controlled with an upgrading of both ductility and ultimate bearing capacity (UBC). A series of feasible formulas that calculate UBC is proposed as well. ANSYS, a widely used Finite Element Analysis software, is introduced in the research and the compare between calculating and test results suggests that the behavior of reinforced columns could be well predicted if choosing rational modeling strategy. Based on the FEM results, the mechanics of both tests are also discussed which would help in furthering the research and enlarging utilization of the new strengthening method.