EXPERIMENTAL STUDY OF HRB500 REINFORCEMENT CONCRETE COLUMNS UNDER MONOTONOUS ECCENTRIC COMPRESSION

In order to generalize HRB500 reinforcement and provide warrant for the redaction of Code for Design of Concrete Structures,the experiment researches should be done on the main characteristic of HRB500 reinforcement concrete members.The results of experimental study of 4 HRB500 reinforcement concrete columns under monotonous eccentric compression are summarized.Based on 4 tests,the typical features of deflection,the failing forms and the compressive behavior of columns are analyzed.It is shown that the failure shape,the pattern of deflection and the strain distribution of section of experimental columns are similar to the ordinary high strength concrete columns.The actual capacity of bearing of higher strength concrete columns are smaller than the result with formula.