Artículos de revistas
Shear strength of reinforced concrete circular cross-section beams
Resistência à força cortante de vigas de concreto armado com seção transversal circular
Fecha
2012Registro en:
Rev. IBRACON Estrut. Mater.,v.5,n.6,p.781-797,2012
1983-4195
10.1590/S1983-41952012000600004
Autor
Teixeira, P. W. G. N.
Maffei, C. E. M.
Guazzelli, M. C.
Institución
Resumen
A proposed adequation of NBR 6118, Item 7.4, related to shear strength of reinforced concrete beams is presented with aims to application on circular cross-section. The actual expressions are most suitable to rectangular cross-section and some misleading occurs when applied to circular sections at determination of VRd2, Vc and Vsw, as consequence of bw (beam width) and d (effective depth) definitions as well as the real effectiveness of circular stirrups. The proposed adequation is based on extensive bibliographic review and practical experience with a great number of infrastructure elements, such as anchored retaining pile walls, where the use of circular reinforced concrete members is frequent.