Abstract
“Vertical slits” are structural slits, which structurally insulate non-load bearing walls from main members, positioned between columns and wing walls. Lateral pressure from concrete acts on vertical slits during deposition of concrete. There is no method other than empirical rules to evaluate rigidity and yield strength of vertical slits against lateral pressure in practice. There are cases when vertical slits fall off because of lateral pressure, forcing repair work to be carried out. We have conducted experiments to obtain the rigidity and yield strength of vertical slits against lateral pressure. Vertical slits were loaded with loads equivalent to lateral pressure from concrete. Concrete was deposited into full-scale RC columns with vertical slits. We report methods to evaluate resistance of structural slits against lateral pressure from concrete based on these experiments in this work.
