Basalt Fiber Reinforced Polymer (BFRP) On The Performance Of Reinforced Concretecontinuous Beam Mechanical Reinforcement

In today’s civil engineering sector, reinforced concrete has become themost widely used building material, reinforced concrete structures in thelong-term use, change the environment due to defects corrosion,oxidation of materials, functionality, design and construction of naturaldestruction disasters and other factors, a large number of reinforcedconcrete structures need repair and reinforcement. Fiber composites(Fiber Reinforced Polymer Plastic, referred to as FRP) as a newreinforcement material, because of its light weight, high strength,corrosion resistance and ease of construction and other features aregradually replace steel and other materials used in reinforced concretestructures. Basalt fiber as a new fiber material, following the carbon fiberand glass fiber has a relatively mature applicable to civil engineering fibermaterial, basalt fiber has good elongation, high temperature resistance,corrosion resistance and low prices, to mention point, is becoming thenew darling of the fiber reinforcement areas.This topic originates from the Jilin province science and technologydevelopmentproject, the project name:"Research on key technology ofbridge structureseismic damage with basalt fiber sheets",ResearchCurrent research on basalt fiber reinforced concrete members at homeand abroad is still in its infancy, and the study of reinforcement beams aremore concentrated in terms of Charpy reinforcement, and for the BasaltFiber Reinforced Concrete Continuous Beam aspects also rarely.Therefore, the study of basalt FRP reinforced concrete continuous beambending performance has important theoretical and practical significance.This design with five double-span continuous beam, after using theBasalt Fiber Reinforced Polymer, to study its mechanical performance,including the different layers and different locations to paste on the beamcracking load, ultimate load, stiffness, deflection, cracks, etc. affected.While the use of large-scale computing software ABAQUS basalt FRPreinforced concrete continuous beam analysis software simulation. The main contents are as follows:1by comparing the test results, obtained by reinforcing beam ultimateload has been enhanced to improve the level of between8.1%-28.8%,and the ultimate load with increasing number of layers of basalt fiber clothpaste increases; being reinforced beams cracking load has also beenimproved, reinforced beams had its maximum crack width decreased,significantly reducing the number of cracks; being reinforced beamstiffness has been significantly improved, the same deflection under loadare reduced.2Through theoretical analysis, summed up the discussion through thebasalt with FRP flexural capacity of reinforced concrete continuous beamformula and stiffness formula.3by using ABAQUS software simulation of the test beams, respectively,compared with the experimental simulation of cracking load, ultimate load,stiffness, deflection and other results. By contrast can be seen, ABAQUScalculation software can be a more realistic simulation of the mechanicalproperties of reinforced beams relevant.