The Oretical And Experimental Research On The Flexural Performance Of The Basalt Fiber Reinforced Beams

From ancient times to the present,in the history of architecture in our country,wood structure,as one of the important structural forms of architecture in our country,occupies an important position in the history of architecture in our country.Therefore the protection of these precious historical heritage is a major topic of the times,one of the important means for the protection of ancient buildings to repair the main wooden structure is to be strengthened,so the existing mainly wooden structure building protective reinforcement technology research is of practical significance.The wood with basalt fiber reinforced composite material paste,the original wood performance improvement made into composite building components,using multi-layer(multi section)common long straight,common wood longitudinal splicing diameter of basalt fiber reinforced beams into a whole,which makes the original ancient building materials has been two times to use,and can meet the the whole building force on the mechanics of timber.Based on the summary of the existing research results,through the use of different types of wood and basalt fiber splicing scheme of basalt fiber reinforced influence on flexural behavior of beams to the pursuit of the overall mechanical properties of the best stitching.The 11 root wood beams and beams of basalt fiber composite plate and the whole paste after the static bending test,the basalt fiber reinforced theoretical and Experimental Research on the flexural behavior of the whole wood plank.The test results show that basalt fiber can improve the pasting plate beams flexural performance,the ultimate flexural capacity improved greatly.The fiber is pasted with a layer of basalt fiber reinforced plate ultimate flexural bearing capacity of the whole beam than wood beam is low,the overall carrying capacity and timber wood beams with two layers of basalt fiber and not much difference between the fiber board increased,bending over wood beams bearing capacity of 18.56% two layers of basalt fiber plate paste and prestressed fiber reinforced whole beam limit the.By the basic theory of bending model in existing beams,considering the test conditions,the simplified interpretation of new wooden beams calculation model,deduced the whole beam formula for calculating the bending capacity of reinforced fiber.By using the finite element software ANSYS simulation analysis of bearing capacity and deformation of the beams of six groups.The load deflection curve of beams and bending stress direction through the simulation test large amounts of computation,and compared with the bending test and theoretical analysis to the results,the results prove that the ANSYS beams flexural model can be simulated wood beams and fiber reinforced beams deformation and stress.