Impulsive Direct Shear Failure in RC Slabs

Abstract

Direct shear failure in reinforced concrete slabs under impulsive loads is relatively undocumented because of the paucity of data showing failure characteristics. The combined effects of beam action and wave action are likely to be important in developing models to understand the dynamic direct shear phenomenon. The research summarized in this paper makes an initial attempt to understand this phenomenon by considering elastic beam action to describe incipient direct shear failure conditions. The effects of load rate and beam‐end restraint are investigated. Failure curves developed from elastic Timoshenko beam models are compared with experimental data on one‐way slabs which failed in direct shear.