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Flexural response of steel beams strengthened with partial-length CFRP plates
One possible failure mode of steel beams strengthened with partial-length, adhesive-bonded CFRP plates is plate debonding. High stresses cause plate debonding under cyclic loadings. This paper presents the flexural behavior of steel beams strengthened with partial-length, adhesive-bonded CFRP plates. The flexural behavior includes the effect of CFRP length on the failure loads and failure modes, the development of tensile stresse in the bonded plate, the strain distribution across the midspan section, and the load-deflection of the strengthened beams.The main conclusions are as follows: The hybrid beams had two types of failure modes: plate debonding and plate rupture at midspan. As the plate length increased, the failure load increased, until the failure mode changed. The use of a modified shear lag analysis for predicting the distance that the bonded plate requires to achieve flexural conformance seems to be reasonable. The failure load in the case of the plate rupture can be conservatively predicted by the section analysis.
Flexural response of steel beams strengthened with partial-length CFRP plates
One possible failure mode of steel beams strengthened with partial-length, adhesive-bonded CFRP plates is plate debonding. High stresses cause plate debonding under cyclic loadings. This paper presents the flexural behavior of steel beams strengthened with partial-length, adhesive-bonded CFRP plates. The flexural behavior includes the effect of CFRP length on the failure loads and failure modes, the development of tensile stresse in the bonded plate, the strain distribution across the midspan section, and the load-deflection of the strengthened beams.The main conclusions are as follows: The hybrid beams had two types of failure modes: plate debonding and plate rupture at midspan. As the plate length increased, the failure load increased, until the failure mode changed. The use of a modified shear lag analysis for predicting the distance that the bonded plate requires to achieve flexural conformance seems to be reasonable. The failure load in the case of the plate rupture can be conservatively predicted by the section analysis.
Flexural response of steel beams strengthened with partial-length CFRP plates
Verhalten von mit carbonfaserverstärkten Kunststoffplatten auf einen Teil der Länge verstärkten Stahlträgern bei Biegebeanspruchung
Lenwari, Akhrawat (author) / Thepchatri, Thaksin (author) / Albrecht, Pedro (author)
Journal of Composites for Construction ; 9 ; 296-303
2005
8 Seiten, 17 Bilder, 1 Tabelle, 16 Quellen
Article (Journal)
English
Flexural Response of Steel Beams Strengthened with Partial-Length CFRP Plates
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