Nonlinear Analysis of Arch hollow box RC Beams with openings in different locations

Yasar Ameer Ali Mubarak, Alaa Hussien Ali


This study is devoted to investigate the behavior and performance of arch reinforced concrete (R.C.) beams with openings in different locations along the beam at degrees of 15o, 30o, 45o, 67.5o and 90o. For the analysis, the ANSYS V.16.0 software is used. The ordinary R.C. was modeled by 8-noded isoparametric brick elements, while the steel reinforcing bars were modeled as axial members (bar elements) connecting opposite nodes in the brick elements with full interaction assumption. The CFRP strips were modeled by shell elements. Results show that the ultimate capacity of the beams decreased when the location of the opening changed from 15o to 45o and return to increase when the location of the opening changed from 45o to 90o.

Keywords: reinforced concrete beam, arch beam, opening.

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ISSN (Paper)2224-5790 ISSN (Online)2225-0514

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