Researches On Compressive Property Of Concrete Column Restrained By High Strength Wire Cable Mesh And High-performance Mortar

High strength steel wire mesh and high-performance mortar reinforced concrete structurereinforcement project in the field of technology to be applied gradually, with the traditionalcarbon fiber and steel reinforcement technology compared to stick with fire resistance,durability, construction and convenient and wide application advantage, is a kind of broadprospects for development of reinforcement methods. High strength steel wire mesh andhigh-performance mortar mechanical properties of confined concrete columns is necessary,and now at home and abroad in research in this area is lacking.In this study, high-performance mortar were tested firstly for researching, the main testof its compression performance, reinforced concrete structure designed to meet thespecifications of the load-bearing structure of reinforced polymer mortar basic performanceindicators, and address the penetration of high-temperature polymer mortar is not, theproblem of poor fire performance.A total24concrete colums of4groups with high strength stainless steel wire mesh andhigh-performance mortar reinforcement were tested under uniaxial loading, the mainconsideration of the test strength of concrete, concrete type and strand away from the gatewayconstraints on the concrete columns and other factors affect the results. The results showedthat, compared with the contrast column ultimate load increase rate of30%to60%, and nomatter what kind of impact parameters in high strength stainless steel wire mesh andhigh-performance mortar reinforced concrete have been under pressure to improveperformance, component ultimate strength and ductility have been corresponding increases toeffectively bound the original concrete columns, has played a very good reinforcing effect.High strength steel wire mesh and high-performance mortar binding the effect of low-strengthconcrete is more obvious; plain concrete columns reinforced to improve the bearing capacityof reinforced concrete is better than the results, the relative increased by12%~17%; thesmaller spacing of steel wire, the greater binding of core concrete, the relative increased by12%~17%.Based on test results of the study and rectangular stirrup mechanism, analysis of strandbinding in the shaft under pressure mechanism of square concrete columns, and by linearregression analysis strand confined concrete peak stress and strain of the formula, in strandbased on the High strength of this network-high-performance concrete, mortar binding thestress-strain relationships, and derive High strength steel wire mesh and high-performancemortar column of the axial bearing capacity of reinforced mortar formula. By comparison, the test results are good agreement with the results. Finally, the High strength steel wire mesh andhigh-performance mortar concrete prism mortar binding the stress-strain applied to theexisting components in the general literature, the results with the experimental results closerto further validate the constraints of the concrete after structure relationships, can provide areference for practical engineering calculations.