許容せん断耐力を指標としたせん断クラック幅の評価

Abstract

To consider the damage limit state for RC buildings, the limit value of design shear force should be established to limit the residual crack width under the boundary after an earthquake. In this paper, linear multiple regression analyses were done on the relation of crack width and shear force level for test data. Obtained estimate formulas using major parameters can estimate the residual crack width well.The relationship between the shear force level normalized by the AIJ standard capacity formulas and crack width was also examined. It is founded if the shear force of a member is limited less than the damage limit state shear force capacity, the residual crack width settles for less than 0.3mm.