Flexural stiffness and second-order effects in fiber-reinforced polymer-reinforced concrete frames

Hany Jawaheri Zadeh, Antonio Nanni

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Present ACI guidelines for fiber-reinforced polymer (FRP)-reinforced concrete (RC) structures (ACI 440.1R-15) do not cover axially loaded members. This omission can be partly attributed to the unavailability of certain parameters that influence the analysis and design of FRP-RC frames. Parameters, chief among them the assumed flexural stiffness of columns whether for structural analysis or for slenderness effects, are well established by ACI 318, but only for steel-RC and are not readily available for FRP-RC. In this paper, provisions of ACI 318 on the stiffness of columns and second-order effects in non-sway frames subject to gravity loads are recalculated for FRP-RC columns. Hence, a set of requirements parallel to those of ACI 318 is proposed that ensures: a) smooth transition for designers from the conventional provisions of ACI 318 to those of an envisioned FRP-RC code; and b) performance for FRP-RC structures comparable to that of steel-RC.

Original languageEnglish (US)
Pages (from-to)533-544
Number of pages12
JournalACI Materials Journal
Issue number2
StatePublished - Mar 1 2017


  • FRP-RC column
  • Interaction diagram
  • Slenderness
  • Stiffness

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)


Dive into the research topics of 'Flexural stiffness and second-order effects in fiber-reinforced polymer-reinforced concrete frames'. Together they form a unique fingerprint.

Cite this