The Study Of FRP Reinforced The Concrete Shear Bearing Capacity

FRP (Fiber Reinforced Plastics) reinforcement is method that adhesivethe FRP outside the structure, which can improve the bearing capability ofthe structure. In recent years, scholar all over the word to do a lot ofexperiments and through the engineering example to verification that fiberreinforced plastics can reinforcing the structure, also improved that FRPcan replace steel to reinforce structure.FRP reinforced the concrete shear bearing capacity calculation has beena relatively rare problem, but it is a very important issue, this article based onthe existing experimental models and experimental data for system analysis,and in a large number of experimental data regression analysis, and throughcomparing with experimental data, puts forward this calculation formula ofshear bearing capacity, has good effect, and have advantages. At the sametime to obtain the following conclusion, through the existing experimentaldata to compared, can prove that FRP reinforced concrete beams shearbearing capacity calculation formula is reasonable and feasible. With FRP reinforcement material is similar to the role of stirrups, before the obliquecracks appear, FRP afford less part of shear, in the cracks developmentsituation, FRP assumes shear capacity is gradually increasing. This articlethrough the FRP reinforced concrete beams the experimental analysis, provedthat the truss arch model is feasibility, this formula calculated by the standarddeviation, mean, definitely coefficient has a very good effect. Through theanalysis, the FRP reinforcement ability and the dosage of FRP is notproportional, so this article recommended not using a multilayeradhesive.Through the experimental analysis, when there is a reliableanchorage measures, FRP shear bearing capacity is greatly improved, so weshould guarantee that the FRP has enough length of anchoring.