Abstract
The shear strength and shear failure phenomena were investigated for the square hollow slabs with partial lateral restraint at all edges. The experiments were done by testing three series of the slabs which had been shear-reinforced by H shaped steel and ring shaped steel. The test results concerning to shear strength and failure phenomena were discussed with the analizing results for an equivalent cross beam structure model. The load-deflection relationship was also discussed with the flexural analizing results with consideration to compressive membrane actions.
