DOWEL EFFECT AND ITS CAPACITY EVALUATION AT SLIP DISPLACEMENT OF 2MM FOR BONDED ANCHOR SUBJECTED TO SHEAR FORCE

Abstract

The purposes of this study were to examine the shear resistance mechanism and the parameter's effect on the capacity at slip displacement of 2mm for bonded anchor subjected to shear force. In order to investigate this objective, a shear experiment of 300 specimens with 60 kinds, which consist of 4 types parameters such as embedment length, compressive strength of concrete, diameter and yield strength of steel bar, were carried out.
In the analysis, the mechanism was discussed as the resistances of dowel effect, and the relationship between bearing pressure and diameter of steel bar was considered here. Based on this analysis, formula for shear capacity by dowel effect was proposed for the case when the shear resistance within slip displacement σs=2mm was attained by the bearing pressure strength.