Failure Mechanism of Confined Masonry Wall under Pushover Load

Abstract

The confined masonry wall has various performances and failure mechanisms under earthquake excitation. This excitation, which is applied to the specimen in laboratory tests, can be simplified by conducting pushover loading. This research aims to exhibit the capacity and failure mechanism of confined masonry walls due to pushover loading that was applied on the top of the specimen. The pushover load was applied to the full-scale specimen with the size of 3 m x 3 m. The specimen failed due to bed-joint sliding failure with the maximum pushover load of 34.716 kN. The crack was observed on the contact between the bottom reinforced concrete tie-beam and the brick masonry wall. Thus, the vertical bars that connect the beam and the wall are essential to apply to the tie-beam to hold the shear force on the area.