Shear Strength of Reinforced Concrete Beams under Distributed Loading


This work confirms results indicated by previous research that uniformlydistributed loading leads to higher reinforced concrete (RC) beam shear capacitycomparedto 1 or 2 point loading. Different design methods are compared in thisinvestigation, including those by ACI (1) and other Codes.Twelve beams, without stirrups, are tested in this work to farther investigate theinfluence of distributed loading. Two design equations are proposed in this work, oneincludes the size effect and the other without it. The former has proved to be the moreaccurate.Of 200 test results obtained from the literature, the proposed design equationslead to a COV value of Vtest /VDES of 16.8% and 17.1%. These compare favourablywith other design methods.