Enhancing Low Grade Sitka Spruce Glulam Beams with Bonded-in BFRP Rods

Conan O'Ceallaigh; Annette M. Harte; Karol Sikora; Daniel McPolin

doi:10.13025/18251

Enhancing Low Grade Sitka Spruce Glulam Beams with Bonded-in BFRP Rods

Conan O'Ceallaigh
, Annette M. Harte
, Karol Sikora
, Daniel McPolin

Civil Engineering

Research output: Chapter in Book or Conference Publication/Proceeding › Conference Publication › peer-review

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Abstract

The reinforcement of timber elements using fibre reinforced polymer (FRP) rods or plates is widely accepted as an effective method of increasing the stiffness of members, while at the same time reducing the variability in properties. There are many options to choose from in relation to the FRP material and one of the least documented is basalt fibre reinforced polymer (BFRP). BFRP is the reinforcement chosen in this project due to its superior properties over more commonly used FRPs. Twenty low-grade Irish glued laminated beams are reinforced with two near surface mounted BFRP rods. They are tested in four-point bending in both their unreinforced and reinforced state and the percentage increase in bending stiffness is calculated. The average increase in local bending stiffness is 16.30% with a standard deviation of 1.65%. In addition, the variability in the bending stiffness of the beams is reduced after reinforcement.

Original language	English (Ireland)
Title of host publication	Cost Action FP1004 Conference, Experimental Research with Timber
Publisher	National University of Ireland, Galway
DOIs	https://doi.org/10.13025/18251
Publication status	Published - 1 May 2014

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10.13025/18251Licence: CC BY-NC-ND

O Ceallaigh et alAccepted author manuscript, 605 KBLicence: CC BY-NC-ND

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title = "Enhancing Low Grade Sitka Spruce Glulam Beams with Bonded-in BFRP Rods",

abstract = "The reinforcement of timber elements using fibre reinforced polymer (FRP) rods or plates is widely accepted as an effective method of increasing the stiffness of members, while at the same time reducing the variability in properties. There are many options to choose from in relation to the FRP material and one of the least documented is basalt fibre reinforced polymer (BFRP). BFRP is the reinforcement chosen in this project due to its superior properties over more commonly used FRPs. Twenty low-grade Irish glued laminated beams are reinforced with two near surface mounted BFRP rods. They are tested in four-point bending in both their unreinforced and reinforced state and the percentage increase in bending stiffness is calculated. The average increase in local bending stiffness is 16.30\% with a standard deviation of 1.65\%. In addition, the variability in the bending stiffness of the beams is reduced after reinforcement.",

author = "Conan O'Ceallaigh and Harte, \{Annette M.\} and Karol Sikora and Daniel McPolin",

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language = "English (Ireland)",

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T1 - Enhancing Low Grade Sitka Spruce Glulam Beams with Bonded-in BFRP Rods

AU - O'Ceallaigh, Conan

AU - Harte, Annette M.

AU - Sikora, Karol

AU - McPolin, Daniel

PY - 2014/5/1

Y1 - 2014/5/1

N2 - The reinforcement of timber elements using fibre reinforced polymer (FRP) rods or plates is widely accepted as an effective method of increasing the stiffness of members, while at the same time reducing the variability in properties. There are many options to choose from in relation to the FRP material and one of the least documented is basalt fibre reinforced polymer (BFRP). BFRP is the reinforcement chosen in this project due to its superior properties over more commonly used FRPs. Twenty low-grade Irish glued laminated beams are reinforced with two near surface mounted BFRP rods. They are tested in four-point bending in both their unreinforced and reinforced state and the percentage increase in bending stiffness is calculated. The average increase in local bending stiffness is 16.30% with a standard deviation of 1.65%. In addition, the variability in the bending stiffness of the beams is reduced after reinforcement.

AB - The reinforcement of timber elements using fibre reinforced polymer (FRP) rods or plates is widely accepted as an effective method of increasing the stiffness of members, while at the same time reducing the variability in properties. There are many options to choose from in relation to the FRP material and one of the least documented is basalt fibre reinforced polymer (BFRP). BFRP is the reinforcement chosen in this project due to its superior properties over more commonly used FRPs. Twenty low-grade Irish glued laminated beams are reinforced with two near surface mounted BFRP rods. They are tested in four-point bending in both their unreinforced and reinforced state and the percentage increase in bending stiffness is calculated. The average increase in local bending stiffness is 16.30% with a standard deviation of 1.65%. In addition, the variability in the bending stiffness of the beams is reduced after reinforcement.

UR - http://hdl.handle.net/10379/16158

U2 - 10.13025/18251

DO - 10.13025/18251

M3 - Conference Publication

BT - Cost Action FP1004 Conference, Experimental Research with Timber

PB - National University of Ireland, Galway

ER -

Enhancing Low Grade Sitka Spruce Glulam Beams with Bonded-in BFRP Rods

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