Steel and Composite Structures

  • 제25권5호
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  • Pages.593-601
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  • 2017
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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Numerical investigation of SHS steel beam-columns strengthened using CFRP composite

  • Keykha, Amir Hamzeh (Department of Civil Engineering, Zahedan Branch, Islamic Azad University)
  • 투고 : 2016.08.25
  • 심사 : 2017.09.02
  • 발행 : 2017.12.10
⟨ 이전 논문 다음 논문 ⟩

초록

Carbon Fiber Reinforced Polymer (CFRP) is one of the materials used to strengthen steel structures. Most studies on strengthening steel structures have been done on steel beams and steel columns. No independent study, to the researcher's knowledge, has studied the effect of CFRP strengthening on steel beam-columns, and it seems that there is a lack of understanding on behavior of CFRP strengthening on steel beam-columns. However, this study explored the use of adhesively bonded CFRP flexible sheets on retrofitting square hollow section (SHS) steel beam-columns, using numerical investigations. Finite Element Method (FEM) was employed for modeling. To determine the ultimate load of SHS steel beam-columns, ten specimens, eight of which were strengthened with the different coverage length and with one and two CFRP layers, with two types of section (Type A and B) were analyzed. ANSYS was used to analyze the SHS steel beam-columns. The results showed that the CFRP composite had no similar effect on the slender and stocky SHS steel beam-columns. The results also showed that the coverage length, the number of layers, and the location of CFRP composites were effective in increasing the ultimate load of the SHS steel beam-columns.

키워드

참고문헌

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피인용 문헌

  1. Experimental investigation on the compressive strength of PFGP-covered concretes exposed to high temperature vol.10, pp.4, 2017, https://doi.org/10.1108/jsfe-11-2018-0033