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Composites: Mechanics, Computations, Applications: An International Journal

年間 4 号発行

ISSN 印刷: 2152-2057

ISSN オンライン: 2152-2073

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3D FINITE ELEMENT ANALYSIS OF DEFICIENT HOLLOW STEEL BEAMS STRENGTHENED USING CFRP COMPOSITE UNDER TORSIONAL LOAD

巻 8, 発行 4, 2017, pp. 287-297
DOI: 10.1615/CompMechComputApplIntJ.v8.i4.20
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要約

In recent years, strengthening of steel square hollow sections (SHS) using carbon fiber reinforced polymer (CFRP) has attracted the attention of many researchers. Most of the previous research in this field has been done on the behavior of steel members without deficiency in bending, shear, and compression strengthened using CFRP composite. Few studies have been conducted on steel torsional beams strengthened using CFRP, and to the author's knowledge, no research on the behavior of CFRP strengthened deficient hollow steel beams under torsional load has been presented. The deficiency in steel beams may be created due to the errors caused by construction, fatigue cracking, drilling after building for passing building installation, corrosion, earthquake damage, and so on. However, this study explored the effect of the use of adhesively bonded CFRP flexible sheets on the structural behavior of SHS steel torsional beams having initial deficiencies, using finite element investigation. To study the effects of the CFRP strengthening method on recovering the strength lost in the deficient beams, twelve hollow steel beams with different deficiencies that were strengthened using CFRP sheets, four nonstrengthened hollow steel beams with different deficiencies, and one nonstrengthened hollow steel beams without deficiency as a control column were analyzed. To analyze the beams, three-dimensional (3D) modeling and nonlinear static analysis methods using ANSYS software were applied. The results indicated that application of CFRP sheets for strengthening of deficient torsional hollow steel beams could recover the strength lost due to deficiency, significantly.

によって引用された
  1. Keykha Amir Hamzeh, Investigation of the behavior of deficient steel members strengthened using carbon fiber reinforced polymer under combined compressive load and torsional moment, Mechanics of Advanced Materials and Structures, 27, 11, 2020. Crossref

  2. Keykha A. H., Behavior of Defective Curved Steel Beams Strengthened by a CFRP Composite, Mechanics of Composite Materials, 55, 4, 2019. Crossref

  3. Keykha Amir Hamzeh, Experimental investigation on the compressive strength of PFGP-covered concretes exposed to high temperature, Journal of Structural Fire Engineering, 10, 4, 2019. Crossref

  4. Keykha Amir Hamzeh, Carbon-fibre strengthening of deficient hollow steel sections under combined loading, Proceedings of the Institution of Civil Engineers - Structures and Buildings, 172, 8, 2019. Crossref

  5. Keykha Amir Hamzeh, Assessment of Structural Behavior of Vertical Curved Hollow Steel Beams Strengthened Using CFRP Composite, Practice Periodical on Structural Design and Construction, 24, 4, 2019. Crossref

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