鉄筋コンクリート構造物の発破解体に関する基礎的研究

抄録

Blasting demolition techniques of reinforced concrete (RC) buildings are quite popular in Europe and the United States. However, if the blasting demolition techniques are applied to RC buildings in Japan, there is serious concern that excessively arranged reinforcement, which is required in earthquake resistant design, may disturb the blasting demolitions. In this study, therefore, the experimental demolition of RC column specimens with C4 explosives was performed, in which the amount of explosive used, the longitudinal reinforcement ratio and shear reinforcement ratio were chosen as experimental parameters. Finally the damage of RC column specimens after blasting was investigated qualitatively and quantitatively.