International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Behavior Investigation of Arch Beams Using Different Types of Strengthening Methods

Abstract

Arched beams are exposed to different types of damage, including cracks in the arch structure due to the structure's age, increased applied loads, environmental conditions, and human activities such as an explosion. An opening caused by missile strikes represents damage to the arch beam. In this study, five models were fabricated and tested experimentally. A standard model had no damage, the second had an opening repaired by polymeric cement mortar, and the third had an opening repaired by polymeric cement mortar and reinforced by polymeric carbon fibers. The fourth model had a crack repaired by injecting with epoxy and strengthened with Carbon Fiber-Reinforced Polymers (CFRP) parallel to the crack. At the same time, the fifth specimen had a crack repaired by injecting it with epoxy and strengthening by (CFRP) perpendicular to the crack. All specimens were tested using a single point load at mid-span. 

It was found that the repairing specimen opening by injecting cement mortar and strengthening by polymeric carbon fibers give resistance more than the second specimen by about (3.3%). The failure load of the fifth model was greater by (2.78 %) than the fourth specimen.

Country : Iraq

1 Saadi M. Al-Dabbagh2 Dr. Suhaib Y.K. Al-Darzi

  1. M.Sc. Student, University of Mosul, College of Engineering, Civil Engineering Department, Mosul, Iraq
  2. Assistant Professor, University of Mosul, College of Engineering, Civil Engineering Department, Mosul, Iraq

IRJIET, Volume 6, Issue 7, July 2022 pp. 49-55

doi.org/10.47001/IRJIET/2022.607008

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