Evaluation of Stability Resistance Factor for Slender Concrete Columns Internally Reinforced with Fiber-Reinforced Polymer Bars
Publication: Journal of Composites for Construction
Volume 27, Issue 1
Abstract
The validity of the stability resistance factor in the moment magnification procedure for the analysis of slender columns reinforced with fiber-reinforced polymer (FRP) bars (FRP-RC columns) has not yet been considered in the literature. The development of such a factor, compatible with current building codes, is discussed in this paper. In the development process, first, the variability of the ultimate strength of slender FRP-RC columns was investigated, and the effect of variations in geometric and material properties on this variability was determined. The results of the variability study were later used in the first-order reliability analysis to estimate the appropriate stability resistance factor. The results of the analysis show that a stability resistance factor of 0.75 or 0.7, depending on the flexural stiffness expression, is representative of typical slender FRP-RC columns. Thus, we propose the use of this value, in combination with the recommended load factors.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 27 • Issue 1 • February 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: May 20, 2022
Accepted: Oct 10, 2022
Published online: Dec 6, 2022
Published in print: Feb 1, 2023
Discussion open until: May 6, 2023
ASCE Technical Topics:
- Bars (structure)
- Concrete
- Design (by type)
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Fiber reinforced concrete
- Fiber reinforced polymer
- Load and resistance factor design
- Load factors
- Material mechanics
- Material properties
- Materials engineering
- Materials processing
- Moment (mechanics)
- Polymer
- Reinforced concrete
- Statics (mechanics)
- Structural design
- Structural engineering
- Structural members
- Structural systems
- Synthetic materials
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