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Title:

Finite Element Modelling of FRP-Reinforced Concrete Flexural Elements Installed with Protected Fiber Optic Sensors

Accession Number:

01473551

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Fiber Optic Sensors (FOS) for structural health monitoring applications in civil infrastructure such as bridges is gaining popularity because of their durability and accuracy. Fibre reinforced polymer (FRP) is also being increasingly used as reinforcements in concrete structures to benefit from its high strength and non-corrosive characteristics. For efficient installation and protection of FOS in FRP-reinforced structures, its is proposed that the bare fibre FOS is preinstalled in a supplemental FRP bar of appropriate length which can be attached to a main reinforcing bar at the site prior to pouring of concrete. The objective of this article is to develop a numerical model of a FRP reinforced concrete beam installed with an FOS strain sensor on a supplemental bar, and correlate it with the experimental tests conducted to assess the performance of the system. Beams of two different configurations were tested in three point bending. The results obtained from the present and available experimental data are compared to a detailed numerical model with different parameters for strain level, displacement, and bond stress. In the numerical analyses, two types of plasticity models; concrete smeared crack (CSC) and concrete damage plasticity (CDP) were applied. In addition, the fracture strain-stress of FRP is investigated. The results show that the outcomes from the damage plasticity model is more reasonable and in good agreement with experimental results. Also it was found that the suggested bond strength in the existing codes is quite conservative.

Supplemental Notes:

This paper was sponsored by TRB committee AFF10 General Structures.

Monograph Accession #:

01470560

Report/Paper Numbers:

13-2226

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Rahmatian, Arash
Bagchi, Ashotush
Nokken, Michelle

Pagination:

14p

Publication Date:

2013

Conference:

Transportation Research Board 92nd Annual Meeting

Location: Washington DC, United States
Date: 2013-1-13 to 2013-1-17
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References

Subject Areas:

Bridges and other structures; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete

Source Data:

Transportation Research Board Annual Meeting 2013 Paper #13-2226

Files:

TRIS, TRB, ATRI

Created Date:

Feb 5 2013 12:29PM