Improvement of shear provision in ES EN 1992-1-1:2015 for members requiring design shear reinforcement

  Teklewoine Haile Fitwi

Shear failure is undesirable since it is a brittle mode of failure which occurs with little or no warning, unlike the flexural failure of under-reinforced concrete beams which deflect significantly prior to failure giving warning of impending failure. Recent studies by Kenneth Kwesi Mensah on reliability assessment of structural concrete with reference to stirrup design concluded that the existing provisions of EN 1992-1-1 for shear in beams are highly conservative and becomes un-conservative(unsafe) at low and high percentage of shear reinforcements respectively. Since the new Ethiopian building codes of standard is adopted from the European code EN 1992-1-1 and uses the concept of variable strut inclination method to design for members requiring shear reinforcement, consequently this study was carried on assessing and adjusting the shear design provisions of ES EN 1992-1-1:2015 with reference to finite element analysis software Abaqus CAE and Published Experimental tests. Model beams were analyzed using finite element computer software Abaqus CAE in addition to available experimental data’s. Shear resistance of model beams is plotted against respective selected parameters. This study has provided ways of adjusting the current formulation to achieve sufficient consistency across the range of typical application by providing adjustment factor Ω to the shear provision specified in ES EN 1992-1-1:2015 for members requiring design shear reinforcement.

Keywords- ES EN 1992-1-1:2015, EN 1992-1-1, Abaqus CAE, Shear,RC Beams.

Unique Identification Number - IJEDR1803104
Page Number(s) - 603-617
Pubished in - Volume 6 | Issue 3 | September 2018
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Teklewoine Haile Fitwi,   "Improvement of shear provision in ES EN 1992-1-1:2015 for members requiring design shear reinforcement", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.6, Issue 3, pp.603-617, September 2018, Available at :http://www.ijedr.org/papers/IJEDR1803104.pdf