Abstract
Present study deals with concrete filled square and rectangular steel tube structural elements subjected to bending. The square section (176.77 mm × 176.77 mm) and rectangular section (125 mm × 250 mm) are selected in such a way to have equal concrete and steel sectional area. Steel tubes having ultimate strength 400, 480 and 560 MPa are filled with concrete having cylinder compressive strength 30, 50, 70 and 100 MPa. Behaviour of specimens was studied by fiber element analysis computer code developed in Oracle database. The efficiency and accuracy of the developed computer code are demonstrated through comparisons between computer code results and experimental results. It was found that increment in concrete strength from 30 to 50 MPa, 70 and 100 MPa resulted to increase in the moment capacity of CFST beams by 4, 7 and 11 % for square section and 5, 10 and 15 % for rectangular section, respectively. The moment capacity of CFST beams increases by 17–18 % and 34–36 % when steel tube strength was increased by 20 and 40 %, respectively.
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Gupta, P.K., Katariya, S.K. (2015). Effect of Concrete Strength on Bending Capacity of Square and Rectangular CFST Elements. In: Matsagar, V. (eds) Advances in Structural Engineering. Springer, New Delhi. https://doi.org/10.1007/978-81-322-2187-6_162
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DOI: https://doi.org/10.1007/978-81-322-2187-6_162
Publisher Name: Springer, New Delhi
Print ISBN: 978-81-322-2186-9
Online ISBN: 978-81-322-2187-6
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