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Articles 181 - 210 of 678
Full-Text Articles in Construction Engineering and Management
Adopting Of Pas 1192-2 By Irish Aec Companies – A Formula For Winning International Work, Robert Moore, Alan Hore, Barry Mcauley
Adopting Of Pas 1192-2 By Irish Aec Companies – A Formula For Winning International Work, Robert Moore, Alan Hore, Barry Mcauley
Conference papers
Forfás Ireland policy advisory board for enterprise, trade, science, technology and innovation have recently recommended that the Irish Architecture Engineering Construction (AEC) industry should engage in more international work and in doing so have advised the industry to work within a Building Information Management (BIM) environment, so as to avoid the possibility of a competitive disadvantage in overseas markets. According to Forfás BIM can help develop the appropriate technical skills amongst Irish construction firms so that they can successfully compete in markets where BIM is widely adopted or a requirement. More importantly they have encouraged the industry to strive to …
Design Science: Choosing An Appropriate Methodology For Research In Bim, Dermot Kehily, Jason Underwood
Design Science: Choosing An Appropriate Methodology For Research In Bim, Dermot Kehily, Jason Underwood
Conference papers
This paper discusses Building Information Modelling (BIM) in relation to proposing design science as a methodology for BIM research. The paper firstly outlines how BIM is changing construction work practices to a more collaborative and integrated set of procedures, facilitated through the application of modelling technologies. The use of traditional research methods for BIM research in the context of developing and subsequently evaluating a BIM process or technology is then questioned. The premise of this rationale is that BIM revolves around new practices and emerging technologies that propose to provide efficiency in delivering constructed assets in the built environment. Traditional …
The Development Of Key Performance Indicators To Monitor Early Facilities Management Performance Through The Use Of Bim Technologies In Public Sector Projects, Barry Mcauley, Alan Hore, Roger West
The Development Of Key Performance Indicators To Monitor Early Facilities Management Performance Through The Use Of Bim Technologies In Public Sector Projects, Barry Mcauley, Alan Hore, Roger West
Conference papers
One of the biggest threats faced by governments in delivering greater efficiency on public works is the need for the public sector to have an enhanced physical environment to operate from. The physical environment can either enhance or impede worker productivity, therefore contributing to its bottom line profits and success of the organisation. This has now resulted in the AEC sector witnessing the development and adoption of Building Information Modelling (BIM), so as to ensure a new level of functionality for the management of buildings. Despite enhanced Facilities Management (FM) being the goal of BIM, there is still reluctance and …
Risk Management In Motorway Ppp Projects: Empirical-Based Guidelines, Nunzia Carbonara, Nicola Costantino, Louis Gunnigan, Roberta Pellegrino
Risk Management In Motorway Ppp Projects: Empirical-Based Guidelines, Nunzia Carbonara, Nicola Costantino, Louis Gunnigan, Roberta Pellegrino
Articles
This paper deals with the topic of risk management in Public–Private Partnership (PPP). The analysis of the related literature reveals that risks must be analyzed and managed on a context-specific approach, and that there is a lack of a comprehensive study on the appropriate risk mitigation strategies for each risk embedded in PPP projects. Focusing on the transport sector, based on the results of a Delphi survey, the paper provides guidelines for both public and private parties in defining a list of significant risks in PPP motorway projects, and identifying for them both the effective allocation and the suitable mitigation …
Structural Properties Of Concrete Materials Containing Roadcem, Niall Holmes
Structural Properties Of Concrete Materials Containing Roadcem, Niall Holmes
Articles
This paper presents findings from a preliminary study to assess the structural and material properties of a nonstandard, concrete type mix containing RoadCem, a traditional soil stabilising additive. Two different mixes determined the effect of adding RoadCem in terms of compressive and flexural strengths, breaking strain, thermal expansion and contraction behaviour, permeability using a falling head, and Young’s modulus. RoadCem is a fine powder containing alkali metals and synthetic zeolites which are complemented with a complex activator. RoadCem modifies the dynamics and chemistry of cement hydration by enhancing the crystallisation process and forming longer needle crystalline structures. It reduces the …
First Steps In Developing Cement-Based Batteries To Power Cathodic Protection Of Embedded Steel In Concrete, Niall Holmes, Aimee Byrne, Brian Norton
First Steps In Developing Cement-Based Batteries To Power Cathodic Protection Of Embedded Steel In Concrete, Niall Holmes, Aimee Byrne, Brian Norton
Articles
This paper presents the first steps in developing innovative cement-based batteries to power cathodic protection in reinforced concrete structures. Initial electrical outputs of 1.55V and 23mA have been found to be sufficient to polarise prescribed corrosion currents of 20mA per m2 of embedded steel. Cathodic protection is a well-developed and powerful technique to limit the effects of steel reinforcement corrosion. However, as it requires an electrical supply day and night, it is often powered by non-environmentally friendly diesel generators or connected to the electrical grid. This paper focuses on increasing the ionic conductivity of the solution in the cement pores, …
Effects Of Posttensioning Slippage On 2-Way Spanning Concrete Slabs, Niall Holmes, Eoin Byrne
Effects Of Posttensioning Slippage On 2-Way Spanning Concrete Slabs, Niall Holmes, Eoin Byrne
Articles
This paper investigates the effect of improper posttensioning of a 2-way spanning concrete slab subject to a central point load. Due to plate slippage alone, the support conditions only offered a 1-way spanning action which could have led to premature failure with dangerous consequences. Posttensioning can strengthen a flat slab against punching shear by controlling deflections and cracking under service loads compared with traditional punching shear reinforcing methods leading to more slender structures and economic solutions for longer spans. However, if the method is not properly applied, these thinner floor plates can fail in a brittle and sudden manner by …
The Design Of A Modelling, Monitoring And Validation Method For A Solid Wall Structure, Timothy O'Leary, Gillian Menzies, Aidan Duffy
The Design Of A Modelling, Monitoring And Validation Method For A Solid Wall Structure, Timothy O'Leary, Gillian Menzies, Aidan Duffy
Conference Papers
Hygrothermal assessment is the combined analysis of heat, air and moisture transfer through the building fabric. The two approaches are covered by conventions known as the IS EN 5250:2011 (Glaser method) and IS EN 15026:2007 which differs from Glaser by solving the equations numerically using computer software. Results for hygrothermal analysis provide valuable information for surface and interstitial condensation risk assessment and the impact of energy upgrades. For traditional solid walled structures, conditions such as wind driven rain (WDR) and rising ground water can have a significant impact on the environmental behaviour and in particular the moisture behaviour of the …
Aligning Bim And Lean Methodologies Within Capital Works Management Framework In Ireland, Barry Mcauley, Alan Hore, Muiris O'Loingsigh, John Deeney
Aligning Bim And Lean Methodologies Within Capital Works Management Framework In Ireland, Barry Mcauley, Alan Hore, Muiris O'Loingsigh, John Deeney
Conference papers
In 2007, following continued dissatisfaction with the lack of cost certainty on publicly funded projects, the Irish Government introduced the Capital Works Management Framework (CWMF). This framework had stated strategic objectives of achieving greater cost certainty at contract award stage; better value for money at all stages during project delivery and, more efficient end-user delivery. The framework, in particular, sought to rebalance risk, so that there was an optimal transfer of risk to the contracting authority and the contractor through the implementation of fixed price contracts. Coinciding with the introduction of the CWMF, there was significant debate around the introduction …
Employment Opportunities And Skills Requirements For Construction And Property Surveying 2014 - 2018, Roisin Murphy, Stephen Walsh
Employment Opportunities And Skills Requirements For Construction And Property Surveying 2014 - 2018, Roisin Murphy, Stephen Walsh
Reports
In Autumn 2012, a number of Society members expressed their increasing struggle to find qualified graduate surveyors to fill vacancies in their practices. At the same time, members working in academic institutions reported a severe reduction in the number of students enrolling on surveying courses at third level.
Active Confinement Of Weakened Concrete Columns, Niall Holmes, Dervilla Niall, C. O’Shea
Active Confinement Of Weakened Concrete Columns, Niall Holmes, Dervilla Niall, C. O’Shea
Articles
This paper investigates the advantages of using of external active confinement to improve the compression load capacity of concrete cylinders using mild steel band clamps. For this, passive and actively pre-stressed steel bands have been attached to concrete cylinders to mimic real structural columns which may otherwise have to be removed and replaced due to poor strength performance. The experimental programme included compression load testing a number of unreinforced concrete cylindrical specimens to establish the effect the confinement had on the compressive load-carrying capacity and the stress-strain behaviour. A number of parameters were investigated in the study including the effect …
Acoustic Properties Of Concrete Panels With Crumb Rubber As A Fine Aggregate Replacement, Niall Holmes, Alex Browne, Christopher Montague
Acoustic Properties Of Concrete Panels With Crumb Rubber As A Fine Aggregate Replacement, Niall Holmes, Alex Browne, Christopher Montague
Articles
This paper presents the acoustic performance of small scale crumb rubber concrete (CRC) panels in terms of the sound absorbance and insulation at low (63, 125, 250 & 500 Hz) and high (1000, 2000, 4000 and 5000 Hz) frequencies. Acoustic tests were conducted with differing levels of fine aggregate replacement with crumb rubber (7.5 and 15%) with four different grades following freezing and heating. Analysis of the workability, compressive strength and density are also presented. The results found that CRC performed well in terms of sound absorbance particularly with higher proportions (15% here) and grades of crumb rubber. As an …
Longitudinal Shear Resistance Of Composite Slabs Containing Crumb Rubber In Concrete Toppings, Niall Holmes, Kevin Dunne, John O'Donnell
Longitudinal Shear Resistance Of Composite Slabs Containing Crumb Rubber In Concrete Toppings, Niall Holmes, Kevin Dunne, John O'Donnell
Articles
This paper investigates the behaviour and longitudinal shear capacity of metal deck composite slabs with the inclusion of crumb rubber in the concrete toppings. The ability of the slabs to act compositely is governed by the shear interaction between the concrete topping and the profiled steel deck. Results here show that crumb rubber concrete (CRC) improve the overall shear bond capacity between the steel deck and topping following an experimental study on full scale loading tests in accordance with Eurocode 4. The results confirm that composite slabs incorporating crumb rubber had no effect on the longitudinal shear resistance with similar …
Testing And Analysis Of An Alternative Connection Method In Closed Panel Timber Frame Domestic Construction, Brendan Towey
Testing And Analysis Of An Alternative Connection Method In Closed Panel Timber Frame Domestic Construction, Brendan Towey
Masters
Construction practices continue to evolve in tandem with the requirements for more energy efficient buildings, materials and construction methods. This steady and progressive move towards the development of the industry and its products comes, not in leaps and bounds, but in incremental advances across all areas of construction. The research detailed in this project is one such advancement. Timber frame construction has been in existence for centuries and its tried and tested methods have been utilised worldwide in both domestic and industrial building. In recent times, standard open panel timber frame construction has been enhanced by the development of closed …
Industrial Relations And The Construction Sector: The Implications Of Mcgowan And Ors V The Labour Court, Ruairi Hayden
Industrial Relations And The Construction Sector: The Implications Of Mcgowan And Ors V The Labour Court, Ruairi Hayden
Other Resources
On the 9th May 2013 the Supreme Court in McGowan and Ors v The Labour Court and Ors found Registered Employment Agreements to be incompatible with the Constitution. Registered Employment Agreements (REA) are provided for in Part III of the Industrial Relations Act 1946. Collective bargaining has traditionally been the method for employees and employers to negotiate terms of employment within the construction industry. These agreements would then be registered with the Labour Court and they would have legal effect. Registered Employment Agreements are particularly suited to the construction industry due to the labour intensive nature of the industry …
Establishing Key Performance Indicators To Measure The Benefit Of Introducing The Facilities Manager At An Early Stage In The Building Information Modelling Process, Barry Mcauley
Conference papers
The Facilities Manager occupies a unique position within the lifecycle of a building asset, as he/she is one of the only AEC / FM professionals who is in a position to view the product of the entire design and build process and, is responsible for the operational phase which incurs approximately five times the initial capital cost. Despite the potential benefits that the Facilities Manager offers, this profession still does not command the recognition it deserves within the AEC/FM sector. This is beginning to change through the introduction of Building Information Modelling (BIM). In order for the BIM process to …
Creating Interactive Facilities Management Capabilities Through Building Information Modelling As A Tool For Managing The Irish Public Sector Estates, Barry Mcauley, Alan V. Hore, Roger West, Deborah Rowland
Creating Interactive Facilities Management Capabilities Through Building Information Modelling As A Tool For Managing The Irish Public Sector Estates, Barry Mcauley, Alan V. Hore, Roger West, Deborah Rowland
Conference papers
The Irish Government manages estates that are faced with increased pressure on their greenhouse gas emissions, as well as, poorly managed assets that leave it increasingly difficult for an effective Facilities Management (FM) process to be operated. The FM processes represents the most costly stage in the life-cycle of a building and must now take priority in the design process, as the operating and maintenance costs can be up to five times the capital costs, with the business operating costs reaching up to two hundred times the capital costs over the life of the building. In order for Ireland to …
Public / Private Bim: An Irish Perspective, Barry Mcauley, Alan V. Hore, John Deeney
Public / Private Bim: An Irish Perspective, Barry Mcauley, Alan V. Hore, John Deeney
Conference papers
The current economic difficulties have affected most practitioners within the industry and, as a result, many firms and contractors are bidding for fewer projects, resulting in below-cost tenders. It is clear that, many firms and contractors are now operating on thin margins; which makes it increasingly difficult for them to commit to the introduction of new software applications and system upgrades. The transition to Building Information Modelling (BIM) from traditional 2D CAD by Irish firms and contractors has been a relatively slow process compared with our international colleagues. There are many reasons for this, including lack of resources, lack of …