Experimental and numerical investigation of the behaviour of CFRP strengthened CHS beams subjected to bending
| Autor: | M.H. Kabir, J.B. Bai, Tommy H.T. Chan, Jcph Gamage, Sabrina Fawzia |
|---|---|
| Přispěvatelé: | Queensland University of Technology [Brisbane] (QUT), University of Moratuwa [Moratuwa], Laboratoire de mécanique des sols, structures et matériaux (MSSMat), CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Queensland University of Technology, QUT Queensland University of Technology, QUT |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Layer orientation
CHS Materials science Bending business.industry Service load 020101 civil engineering Young's modulus 02 engineering and technology Structural engineering Strengthened Layer thickness 0201 civil engineering symbols.namesake [SPI]Engineering Sciences [physics] 020303 mechanical engineering & transports 0203 mechanical engineering Deflection (engineering) symbols Adhesive Numerical investigation Composite material CFRP business Civil and Structural Engineering |
| Zdroj: | Engineering Structures Engineering Structures, Elsevier, 2016, 113, pp.160-173. ⟨10.1016/j.engstruct.2016.01.047⟩ |
| ISSN: | 0141-0296 |
| DOI: | 10.1016/j.engstruct.2016.01.047⟩ |
| Popis: | International audience; This paper presents the results of an experimental and numerical program to investigate the circular hollow section (CHS) beams, strengthened using Carbon Fibre Reinforced Polymer (CFRP) sheets. The circular hollow shaped steel beams bonded with different CFRP layer orientations were tested under four-point bending. The mid-span deflection, service load and failure load were recorded. The LHL (where L, first inner longitudinal layer, H, second hoop layer and L, third outer longitudinal layer) and LLH (where L, first inner longitudinal layer, L, second longitudinal layer and H, third outer hoop layer) layer oriented strengthened beams perform slightly better than HHL (where H, first inner hoop layer, H, second hoop layer and L, third outer longitudinal layer) layer oriented strengthened beams. The LHL and LLH layer oriented treated beams showed very similar structural behaviour. Numerical analyses were then conducted on the CFRP strengthened steel CHS beams. The validity of the models has been assessed by comparing the failure loads and mid-span deflections. The effects of various parameters such as bond length, section types, tensile modulus of CFRP, adhesive layer thickness and adhesive types have been studied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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