ABSTRACT

ABSTRACT: The transverse flexural and pure torsional strength of Prestressed Precast Hollow-Core Slabs (PPHCS) were investigated experimentally. Two series of tests were conducted and their results reported, relating to: a. the lateral (perpendicular to span) flexural strength, and b. the pure torsional strength. The development of a machine for the testing of slab cuts under pure torsion is presented and explained in detail. Evidence of existing reliable tensile/shear strength was produced. A size effect was detected indicating a higher strength with the reduction of the slab thickness, under both bending and torsion.