Reliability analysis of FRP-confined concrete test databases

A. Gholampour, B. Keshtegar, T. Ozbakkaloglu

Research output: Contribution to conferencePaper

Abstract

This study presents a reliability analysis of the compressive strength test results of fiber reinforced polymer (FRP)-confined concrete in existing test databases. Four confidence levels are determined based on the conjugate search direction to assess the reliability of the test database. The reliability analysis results indicate that the part of the database with: i) normal strength concrete (NSC) moderately and heavily confined by higher modulus glass fibers (i.e. fiber elastic modulus (E f) > 60 GPa), ii) high strength concrete (HSC) moderately and heavily confined (i.e. actual confinement ratio (f lu,a/f' co) > 0.3) by glass fibers, iii) HSC lightly confined (i.e. f lu,a/f' co ≤ 0.3) by carbon fibers, and iv) HSC lightly confined by aramid fibers develops a low and moderate reliability. It is suggested additional experimental studies are required on these parts of the database before they can be used confidently for design and modeling purposes.

Original languageEnglish
Number of pages4
Publication statusPublished - 2017
Externally publishedYes
Event6th Asia-Pacific Conference on FRP in Structures - , Singapore
Duration: 19 Jul 201721 Jul 2017
Conference number: 6

Conference

Conference6th Asia-Pacific Conference on FRP in Structures
Abbreviated titleAPFIS 2017
CountrySingapore
Period19/07/1721/07/17

Keywords

  • Confidence level
  • FRP-confined concrete
  • Fiber reinforced polymer (FRP)
  • Reliability analysis
  • Test database

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