Shear Behaviour of RC Beams without Stirrups Made of Normal Strength and High Strength Concretes by M. Hamrat, B. Boulekbache, M. Chemrouk and S. Amziane Reprinted from Advances in Structural Engineering Volume 13 No. 1 2010 MULTI-SCIENCE PUBLISHING CO. LTD. 5 Wates Way, Brentwood, Essex CM15 9TB, United Kingdom