WHOLE PROCESS ANALYSIS OF PRE-STRESSED T-SHAPED REACTIVE POWDER CONCRETE BEAMS

摘要

Reactive powder concrete (RPC) is a new type of concrete with ultra-high mechanical properties. Constructional members made by RPC differ greatly from those by conventional concrete in its deformation and failure under loading. Using nonlinear finite element method, it is mainly analyzed in this paper that the shear failure process of pre-stressed T-shaped RPC beam under mid-span load from the time when the initial crack comes to appear to the time when the beam comes to fail, including the course of crack' s gradual extensioa The results obtained from the analysis accord well with those obtained from the experiment.