System and Method for Concrete Shrinkage Stress Test by Measuring Steel-Bar Deformation

摘要

The present invention is a system for evaluating the critical elements of concrete shrinkage stress at the time of assessment and prediction of concrete cracks relates to a method and, more specifically, on the basis of the test piece was covered with reinforced concrete as the reinforcement behavior integrally ( ), by measuring the amount of deformation according to the reinforced concrete shrinkage deformation estimating the shrinkage stress of the reinforcement and the reinforcement calculated relates to a contraction stress in the concrete shrinkage stress evaluation systems and methods for deriving and replaced with shrinkage stress of the concrete. The invention concrete specimen; The tubular ( ) deformed bar inserted in the longitudinal direction of the concrete specimen center; Strain gauge bonded to the inner periphery of the tubular deformed bar; And the strain gauge and strain recorder connected to the front; Provides a reinforced concrete shrinkage stress strain evaluation system based on measurements comprise. ;