Effects of Carbon Fiber Reinforced Polymer Strips on the Flexural Strength and Deflection of Steel I-Beam

Abstract:

This study investigates the use of carbon fiber reinforced polymer (CFRP) strips as an alternative way of retrofitting steel I-beams. The flexural strength and maximum deflection of unstrengthened and CFRP-strengthened steel I-beams were compared. Three groups of samples were studied: the first group has CFRP strip installed on the tension flange of the steel I-beam; the second group has CFRP strips installed on the compression and tension flanges of the steel I-beam; and the third group comprises unstrengthened steel I-beams which serve as control specimens. All specimens were tested as simply supported beams under third-point loading. A reaction frame machine was used to apply the load while a dial indicator was used to measure deflections.

• Periodical: Materials Science Forum (Volume 866)
• Pages: 114-118
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.866.114
• Online since: August 2016
• Authors: Mary Ann Ahalajal, Nathaniel C. Tarranza
• Keywords: Carbon Fiber Reinforced Polymer, Deflection, Flexural Strengthening, Steel I-Beam

References

[1] Information on http: /www. ce. ncsu. edu/centers/rb2c/Publications/UseOfHighModulusCarbonFiberReinforcedPolymers_Schnerch_Stanford_Cairo2003. pdf.

[2] N.A. Peiris, Steel Beams Strengthened With Ultra High Modulus CFRP Laminates, University of Kentucky Doctoral Dissertations, (2011).

[3] Information on http: /www. engineeringtoolbox. com/american-wide-flange-steel-beams-d_1318. html.

[4] D. Schnerch, M. Dawood, S. Rizkalla, Design Guidelines for the Use of HM Strips, Technical Report, June (2007).

[5] A.A. Ali, Mechanics of Bending, Structural Steel Design.

[6] Information on http: /web. mst. edu/~mecmovie/chap08/m08_16_steel_alum. swf.