This paper reports on the results of an experimental investigations and theoretical models of concrete filled fiber-reinforced polymer (FRP) tube (CFFT) columns reinforced with steel and carbon-FRP (CFRP) bars under concentric and eccentric compressive loads. The experimental test parameters were the type of the internal reinforcement (CFRP versus steel) and eccentricity to diameter ratios. It was found that the CFRP reinforced CFFT columns successfully maintained the axial load capacities under different eccentricities as compared with the steel reinforced CFFT columns. However, the strength and behavior of the steel and CFRP CFFT test specimens were mainly affected by the eccentric loading. The average compressive strength of CFFT columns was reduced by 42–75% with increasing the e/D ratio from 10 to 40%. Theoretical models using two approaches to predict the axial-moment interaction diagrams and moment curvature relationships were developed and validated through comparison with the experimental results. A nonlinear moment-curvature (M-φ) response was observed regardless the type of reinforcement and the applied eccentricity ratio. Furthermore, a comprehensive parametric study was performed to investigate the influence of different design variables on the moment capacity by creating numerous moment curvature relationships.
Composite Structures – Elsevier
Published: Apr 1, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera