Browsing Civil Engineering by Author "http://dx.doi.org/10.13039/501100001584"
Now showing items 1-20 of 21
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Characterisation of Irish-grown Scots pine timber for structural applications
Ó Fátharta, Cian; Gil Moreno, David; Harte, Annette M. (National University of Ireland Galway, 2020-08-27)There is very little knowledge on the timber quality of the native Scots pine grown in Ireland, and its potential to produce timber for structural applications. This paper studied the mechanical performance in tension and ... -
Characterisation of Irish-grown Scots pine timber for structural applications
Ó Fátharta, Cian; Gil-Moreno, David; Harte, Annette M. (Civil Engineering Research in Ireland, 2020)There is very little knowledge on the timber quality of the native Scots pine grown in Ireland, and its potential to produce timber for structural applications. This paper studied the mechanical performance in tension and ... -
Enhancing low grade sitka spruce glulam beams with bonded-in BFRP rods
O'Ceallaigh, Conan; Harte, Annette M.; Sikora, Karol; McPolin, Daniel (National University of Ireland Galway, 2014)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 ... -
An experimental and numerical study of moisture flow and moisture-induced strain in fast-grown Sitka spruce
O'Ceallaigh, Conan; Sikora, Karol; McPolin, Daniel; Harte, Annette M. (Departamento de Ingeniería en Maderas de la Universidad del Bio-Bio en Concepción, Chile, 2019)The use of fast-grown timber in the manufacture of engineered wood products is increasing; however, the fast growth rate results in a low-density timber that is susceptible to significant swelling and shrinkage deformations ... -
Glued-in basalt FRP rods as moment connections in box section frames
O’Neill, Caoimhe; McPolin, Daniel; Taylor, Su; Harte, Annette M. (TU Verlag Wien, 2016-08-22)This paper presents an experimental programme that investigates the application of glued-in rods as moment connections in a post and beam connection. Nine such frame corners were constructed of box sections using ... -
Inactivation efficiency of Bacillus endospores via modified flow-through PUV treatment with comparison to conventional LPUV treatment
Fitzhenry, Kelly; Rowan, Neil; Val del Río, Ángeles; Cremillieux, A.; Clifford, Eoghan (Elsevier, 2018-11-28)Water is a fragile resource, consequently there is a pressing need to develop sustainable environmental-friendly disinfection technologies. This constitutes the first study to compare efficacy of continuous low-pressure ... -
The influence of age on the timber properties and grading of Scots pine and larch in Ireland
Gil-Moreno, David; Manso, Rubén; O’Ceallaigh, Conan; Harte, Annette M. (Oxford University Press, 2023-06-13)Scots pine (Pinus sylvestris L.) and larch (Larix spp.) are two species that could contribute to diversifying Ireland’s timber supply. However, there is little knowledge about their properties as well as their variation ... -
The influence of panel lay-up on the characteristic bending and rolling shear strength of CLT
O'Ceallaigh, Conan; Sikora, Karol; Harte, Annette M. (MDPI, 2018-08-21)The objective of this study was to characterise the behaviour of cross laminated timber (CLT) panels and the influence of the panel lay-up on the failure strength. Three different panel configurations of thickness, 60 ... -
An investigation of the viscoelastic creep behaviour of basalt fibre reinforced timber elements
Conan O'Ceallaigh, Conan; Sikora, Karol; McPolin, Daniel; Harte, Annette M. (Elsevier, 2018-08-01)An investigation was carried out to examine the effect of flexural reinforcement on the long-term behaviour of timber beams. Creep tests, utilising statistically matched groups, were performed under Service Class 1 conditions ... -
Irish timber - characterisation, potential and innovation
Harte, Annette M.; McPolin, Daniel; Karol Sikora, Karol; Sikora, Karol; O’Neill, Caoimhe; O’Ceallaigh, Conan (Civil Engineering Research Association of Ireland (CERAI), 2014-09-28)In order to increase the utilisation of Irish timber in construction and novel engineered wood products, the mechanical and physical properties of the material must be established. For timber products used for structural ... -
Mechanical properties estimation by non-destructive testing of Irish hardwood round timber from thinnings for construction purposes
Llana, Daniel F.; Short, Ian; O'Ceallaigh, Conan; Harte, Annette M. (Department of Forestry Policy and Economics, University of Sopron, Hungary, 2018-10-25)Thinning involves the removal of competitors of high quality trees, and trees for extraction racks, all to favour the growth of the selected trees. Many felled trees are small-diameter and in Ireland hardwood thinnings are ... -
Mechano-sorptive creep in reinforced glulam
O'Ceallaigh, Conan; Sikora, Karol; McPolin, Daniel; Harte, Annette M. (National University of Ireland Galway, 2018-08-20)An investigation was carried out to examine the effect of reinforcement on the creep behaviour of FRP reinforced timber elements in a controlled variable climate. Creep is accelerated by moisture variations due to a ... -
Microbiological characterisation and impact of suspended solids on pathogen removal from wastewaters in dairy processing factories
Fitzhenry, Kelly; Rowan, Neil; Finnegan, William; Zhan, Xinmin; Clifford, Eoghan (Cambridge University Press, 2018-08-29)In this Research Communication we investigate the microbiological profile of 12 dairy wastewater streams from three contrasting Irish dairy processing factories to determine whether faecal indicators/pathogens were present ... -
Mitigation of ammonia and greenhouse gas emissions from stored cattle slurry using acidifiers and chemical amendments
Kavanagh, I.; Burchill, W.; Healy, Mark G.; Fenton, O.; Krol, D. J.; Lanigan, G. J. (Elsevier, 2019-07-28)Cattle and cow slurry storage is a significant source of agricultural greenhouse gas (GHG) and ammonia (NH3) emissions. While acidification has been demonstrated to significantly reduce these emissions, a knowledge gap ... -
Modelling the hygro-mechanical creep behaviour of FRP reinforced timber elements
O'Ceallaigh, Conan; Sikora, Karol; McPolin, Daniel; Harte, Annette M. (Elsevier, 2020-06-20)A fully coupled moisture-displacement finite element model has been developed to predict the viscoelastic, mechano-sorptive and swelling/shrinkage behaviour of FRP reinforced timber elements when stressed under long-term ... -
Perception and use of timber in construction: A case study of Ireland and the UK
O’Ceallaigh, Conan; Gil-Moreno, David; Ridley-Ellis, Daniel; Harte, Annette M. (National University of Ireland Galway, 2021-08-09)A survey was carried out to examine the perception of timber in construction among industry stakeholders within northwest Europe. The survey received responses from 17 countries in total. The total results of all ... -
Recovered wood as raw material for structural timber products. Characteristics, situation and study cases: Ireland and Spain
Llana, Daniel F.; Íñiguez-González, Guillermo; de Arana-Fernández, Marina; Uí Chúláin, Caitríona; Harte, Annette M. (International Society of Wood Science and Technology (SWST), 2020-07-12)The circular economy is an efficient system to reuse materials reducing the amount of waste generated. In order to implement it in the timber sector, the InFutUReWood (Innovative Design for the Future Use and Reuse of ... -
Test machine effect in the determination of modulus of elasticity for strength graded timber
Gil-Moreno, David; Ridley-Ellis, Dan; Harte, Annette M. (World Conference on Timber Engineering (WCTE2021), 2021-08-09)This paper investigates if the relationship between the global and local moduli of elasticity (MoE), measured in bending tests, is affected by the test machines employed, and how that may influence strength grading. The ... -
Use of non-destructive test methods on Irish hardwood standing trees and small-diameter round timber for prediction of mechanical properties
Llana, Daniel F.; Short, Ian; Harte, Annette M. (Springer Verlag, 2020-06-17)Key message Mechanical properties of small-diameter round timber from hardwood thinnings of common alder (Alnus glutinosa (L.) Gaertn.), European ash (Fraxinus excelsior L.), European birch (Betula pendula Roth. & Betula ... -
Viscoelastic creep in reinforced glulam
O'Ceallaigh, Conan; Sikora, Karol; McPolin, Daniel; Harte, Annette M. (TU Verlag Wien, 2016-08-22)The mechanical and physical properties of softwood timber can vary considerably as a result of the age and rate of growth of the tree and other environmental factors which affect the wood cell density and strength [1]. ...