The Structural Engineer > Archive > Volume 88 (2010) > Issues > Issue 23/24 > Shear design of circular concrete sections using
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Shear design of circular concrete sections using

The introduction of the Eurocodes for concrete design will alter the way that shear is approached for concrete structures. BS EN 1992-1-11 has adopted the variable angle truss model for shear, a more theoretically consistent approach than that used in BS 8110- 12. The model is confidently applied to rectangular sections, but its applicability to irregular sections is less clear. In particular, the behaviour of circular concrete sections is not well defined. This paper is intended to satisfy a requirement for design guidance on this topic that has been recognised by key BSI Committees. Using both experimental and theoretical data, the Eurocode variable angle truss model for shear design is assessed and extended to circular columns. J. J. Orr, MEng (Hons) Department of Architecture and Civil Engineering, University of Bath A. P. Darby, BSc, PhD, CEng, MIStructE Senior Lecturer, Structural Engineering, Department of Architecture and Civil Engineering, University of Bath T. J. Ibell, CEng, BSc(Eng), PhD, FIStructE, MICE, FHEA Professor of Civil Engineering, Department of Architecture and Civil Engineering, University of Bath S. R. Denton, MA, PhD, CEng, MICE Engineering Director, Civil Structures and Geotechnics, Parsons Brinckerhoff, Bristol J. D. Shave, MEng, PhD, CEng, MICE Principal Engineer, Civil Structures and Geotechnics, Parsons Brinckerhoff, Bristol