Design proposals for reinforced concrete corbels

Simple design proposals for normal weight and lightweight reinforced concrete corbels are presented, based on previously reported experimental studies. A Model Code Clause embodying the design proposals is detailed, together with a step-by-step procedure for practical application. Design examples are included for both normal weight and lightweight concrete corbels using both the ACI 318-71 shear-friction provisions and the modified shear-friction theory. An Appendix section contains charts to facilitate proportioning of the corbel reinforcement. Also included is a programable calculator program for designing reinforced concrete corbels. Use of the design proposals can lead to savings in reinforcement, particularly if the modified shear-friction theory is used for shear design. /Author/