Abstract
The shear resistance of a perfobond strip is affected by the dimensions of the concrete block, rib plate thickness as well as perforation diameter and concrete compressive strength, when a penetrating rebar is not arranged inside the perforation. Authors previously proposed the design formula to evaluate the shear resistance of a perfobond strip based on the above factors using the specimen with the rib plate embedded in the concrete block. However, when the rib plate with perforations is welded to the base steel plate and the concrete block is arranged on one side of its base steel plate, it is considered that the restrained condition around the perforation in this case is weaker than the one in the perfobond strip used in the previous study.
In this study, a series of push-out tests were conducted by using the specimen in which the rib plates with perforations were arranged on both sides of the base steel plate and a concrete block was arranged separately on each side of the base plate. As a result, the previous formula proposed for evaluating the shear resistance of the perfobond strip was revised to consider the difference of rib plate and concrete block arrangement.
