Deflection Control for FRP-Reinforced Concrete Members: An Overview

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Title: Deflection Control for FRP-Reinforced Concrete Members: An Overview

Author(s): A. Scanlon

Publication: Special Publication

Volume: 264

Issue:

Appears on pages(s): 1-12

Keywords: beam; creep; deflection; design criteria; FRP reinforcement; shrinkage; slab; tension stiffening.

Date: 10/1/2009

Abstract:
Design for deflection control is a critical part of the design of FRP reinforced members due to the relatively low modulus of elasticity and elastic-brittle nature of FRP reinforcement. This paper provides an overview of design for deflection control including a brief review of the basic mechanics of beam flexure and a review of methods to account for cracking, tension stiffening, shrinkage and creep. The basis for selecting appropriate deflection control criteria is also discussed and a framework is presented to incorporate deflection control into the overall design process.