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Experimental Research On Reinforced Bar Steel Fiber Concrete Beam With Carbon Fiber Cloth

Posted on:2006-09-12Degree:MasterType:Thesis
Country:ChinaCandidate:Y DengFull Text:PDF
GTID:2132360155969635Subject:Structure engineering
Abstract/Summary:PDF Full Text Request
As steel fiber concrete is more and more extensively applyed among project, steel fiber concrete reinforcement of structure is more and more concerned. As ordinary concrete, steel fiber concrete structure can appear the crack unavoidably, reinforcing bar corrosion, wearing out phenomenon etc. in the course of using, make bear capacity of the structure drop. In order to enable original structure to continue to use, must strengthen the original structure To carbon fiber cloth strengthen as a component of structure, because it has simple crafts, easy operation, reliable quality , good performance , not big strengthen space of necessary, obvious strengthen result ,do not influence the structure appearance after strengthening, excel in high-efficient and don't get rusty in composite , don't have chemical reaction between carbon fiber cloth and concrete etc. ,will take place with concrete after strengthening, make the method of carbon fiber cloth strengthen more and more widely get application. The subject's emergence is exactly based on that steel fiber concrete structure is growing and carbon fiber cloth come as one new-type reinforcement material, his unique superiority widely is concerned The main research contents of the subject include:(1) Simple introduce the material performance of steel fiber concrete , carbon fiber cloth and pasting the resin. On the basis of test, analyse the reinforcement mechanism of structure of carbon fiber cloth reinforcing bar steel fiber concrete roof beam.(2) On the basis of relevant test, the curved bear capacity of carbon fiber cloth reinforce reinforcing bar steel fiber concrete beam is studied. Follow the result of the test, with carbon fiber cloth reinforce steel fiber concrete beam ,give full play performance to carbon fiber cloth and steel, the curved bear capacity obviously raise. On the basis of that experimental study and theory analyse put forward one simple curved bear capacity calculate formulae of carbon fiber cloth strengthen reinforcing bar steel fiber concrete beam, By analyse and compare, this method and result of the test are better match.(3) Through the experimental study that carbon fiber cloth reinforce reinforcing bar steel fiber concrete beam, analyse the shear capacity mechanism and influences factor of strengthening of carbon fiber cloth, and according to the result of the test , put forward a kind of simple shear capacity computing technology. By analyse and compare, this method and result of the test are better match.(4) Adopt neural network method, analyse the influence factor of carbon fiber cloth strengthen reinforcing bar concrete and reinforcing bar steel fiber concrete structure, and set up corresponding neural network structure model. By comparing the predicted value in model with test value, it is proved that predict model have higher precision.
Keywords/Search Tags:Steel fiber concrete roof beam, Carbon fiber cloth, Curved bear capacity t, Shear bear capacity, BP neural network, Prediction
PDF Full Text Request
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