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Appl. Sci. 2017, 7(1), 57; doi:10.3390/app7010057

Flexural Capacity of a New Composite Beam with Concrete-Infilled Tubular Lower Flange

1
Department of Architectural Engineering, Ajou University, Suwon 16499, Korea
2
Institute of R&D, Ji Seung Consultant Co., Ltd., Seoul 03058, Korea
3
Department of Architectural Engineering, Kyung Hee University, Yongin 17104, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Wen-Hsiang Hsieh
Received: 11 October 2016 / Revised: 16 November 2016 / Accepted: 18 November 2016 / Published: 6 January 2017
View Full-Text   |   Download PDF [7262 KB, uploaded 6 January 2017]   |  

Abstract

This paper proposes a new steel concrete composite beam that has a similar shape to the conventional steel wide flange beam, but whose lower flange has a tubular shape with infilled concrete. It has openings in the web for perfect integration between concrete and steel materials, and the tubular lower flange is reinforced with steel rebars to enhance its flexural strength. The bending capacity of the new composite beam was investigated by performing a two-point loading test on seven specimens, which can be categorized mainly into two types, non-composite and fully composite specimens. The load versus displacement curves were plotted for all the specimens and their failure modes were identified. Theoretical equations were proposed to estimate the flexural strength of the new composite beam members, and their accuracy was examined by comparing the predictions of the equations with the test results. View Full-Text
Keywords: composite beam; deep deck; tubular flange; honey comb beam composite beam; deep deck; tubular flange; honey comb beam
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Cho, B.-H.; Lee, J.-S.; Kim, Y.-H.; Kim, D.-J. Flexural Capacity of a New Composite Beam with Concrete-Infilled Tubular Lower Flange. Appl. Sci. 2017, 7, 57.

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