Method Of Calculations Of RC Slab Bridge Strengthened With CFRP

Along with the transportation development and thel load rank enhancement, the massive bridges need to carry on the carrying capacity promotion and the reinforcement. Because of the merit of the RC slab bridge, in highway small span bridges it is used massively. Had experimental and the project applied research may see, the solid slad bridge and T-beam bridge strengthening with CFRP have been studied much as well as the hollow slab bridges strengthening with CFRP had been studied little. Up to now there did not have the technical standard of this specialized work in road profession in our country, also not the temporary technical regulations. Therefore, waits for further consummates and the summary computation theory and the method.This article collect the design calculation methods strengthening with CFRP from both at home and abroad, collects the domestic and foreign related highway bridge and in the correlation profession reinforcement regulations, the standard computational method and the formula, mainly has "Technical specification for strengthening concrete structures with carbon fiber reinforced reinforced polymer laminate","Design code for strengthening concrete structure",our country Taiwan standard,the American ACI-440 regulations,English Design guidance for strengthening concrete structures,using fibre composite materials, the Japanese carbon textile fiber cloth glue labor law and so on. Considered the standard, the standard which our country each design, the scientific research and the construction which h'ad the achievement and profit from in the bridge reinforcement work, had determined " Technical specification for strengthening concrete structures with carbon fiber reinforced reinforced polymer laminate "," Design code for strengthening concrete structure "and the Taiwan standard carries on the contrast analysis.In the union literature had the experiment and the data, apply three kind of formulas to take the experimental board separately to carry on the reinforcement computation, and to experiments the value and the predicted value carries on the contrast and the error analysis, recommends " Design code for strengthening concrete structure" after the comparison the formula to take the plank bridge reinforcement computation the basis, and carries on the confirmation through the computation example.