Open Access. Powered by Scholars. Published by Universities.®

Construction Engineering and Management Commons™

Open Access. Powered by Scholars. Published by Universities.®

Geotechnical Engineering

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 61 - 90 of 165

Full-Text Articles in Construction Engineering and Management

Characterization And Performance Of Cement-Based Thermoelectric Materials, Ruchita Jani, Niall Holmes, Roger P. West, Kevin Gaughan, Xiaoli Liu, Esther Orisakwe, Conrad Johnston, Ming Qu, Jorge Kohanoff, Lorenzo Stella, Hongxi Yin Aug 2020

Characterization And Performance Of Cement-Based Thermoelectric Materials, Ruchita Jani, Niall Holmes, Roger P. West, Kevin Gaughan, Xiaoli Liu, Esther Orisakwe, Conrad Johnston, Ming Qu, Jorge Kohanoff, Lorenzo Stella, Hongxi Yin

Civil Engineering Research in Ireland 2020

Thermoelectric materials enable direct conversion of thermal energy to electricity. Ambient heat energy harvesting could be an effective route to convert buildings from being energy consumers to energy harvesters, thus making them more sustainable. There exists a relatively stable temperature gradient (storing energy) between the internal and external walls of buildings which can be utilized to generate meaningful energy (that is, electricity) using the thermoelectric principle. This could ultimately help reduce the surface temperatures and energy consumption of buildings, especially in urban areas.

Go to article

Conversion Of Legacy Inspection Data To Bridge Condition Index (Bci) To Establish Baseline Deterioration Condition History For Predictive Maintenance Models., Nicola Ann Stevens, Myra Lydon, Kristopher Campbell, Thomas Neeson, Adelle Marshall, S. E. Taylor Aug 2020

Conversion Of Legacy Inspection Data To Bridge Condition Index (Bci) To Establish Baseline Deterioration Condition History For Predictive Maintenance Models., Nicola Ann Stevens, Myra Lydon, Kristopher Campbell, Thomas Neeson, Adelle Marshall, S. E. Taylor

Civil Engineering Research in Ireland 2020

Bridge Management Systems (BMS) have been introduced across the world with the goal of aiding the decisions regarding maintenance, rehabilitation and replacement (MR&R) of bridges. Deterioration modelling is the most important part of the BMS because the ability to predict the future condition is vital as it will determine the quality of the decisions made. Markovian-based models are the most common predictive maintenance tool utilised in existing BMS, by obtaining probabilities of transition of bridge condition from one state to another based on historic bridge inspection data. Prior to the introduction of the Bridge Condition Index (BCI) the use of …

Go to article

A Review Of The Data Held On 3,437 Masonry Arch Bridges In Northern Ireland, Kristopher Campbell, Nicola Ann Stevens, Myra Lydon, Thomas Neeson, Su Taylor, Alan O'Connor Aug 2020

A Review Of The Data Held On 3,437 Masonry Arch Bridges In Northern Ireland, Kristopher Campbell, Nicola Ann Stevens, Myra Lydon, Thomas Neeson, Su Taylor, Alan O'Connor

Civil Engineering Research in Ireland 2020

Queens University of Belfast and the Department for Infrastructure (DfI), who are the local road authority in Northern Ireland, have undertaken a joint project to develop a new bridge management system to cover the inspection and maintenance of DfI bridges and associated structures. An initial review of the asset data held by DfI, including bridge properties and current and legacy inspection data has been undertaken for the entire network. This paper primarily focuses on 3,437 masonry arch bridges which make up nearly 53% of the total bridge stock in NI. It presents data which has been classified into groups in …

Go to article

Caha Tunnel Rock Repairs And Improvements Including Non-Destructive Testing, Roy Costello, Liam Duffy Aug 2020

Caha Tunnel Rock Repairs And Improvements Including Non-Destructive Testing, Roy Costello, Liam Duffy

Civil Engineering Research in Ireland 2020

This paper describes Caha Tunnel, a 180m long rock tunnel of siltstone and sandstone formation located along the N71 between Kenmare, Co. Kerry and Glengarriff Co. Cork. The tunnel was formed in the mid-19th century through blasting methods, thus giving it its inhomogeneous cross-sectional shape throughout and exposing the natural face of the rock. In recent years there has been numerous reports of rock falls within the tunnel which is causing uncertainty of the safety of the tunnel amongst road users. Calls for rehabilitation works are sought amongst the public to ensure the long-term safety of the tunnel is provided …

Go to article

Full-Scale Structural Testing Of Wind And Tidal Turbine Blades, William Finnegan, Patrick Meier, Yadong Jiang, Afrooz Kazemi Vanhari, Edward Fagan, Le Chi Hung, Jamie Goggins Aug 2020

Full-Scale Structural Testing Of Wind And Tidal Turbine Blades, William Finnegan, Patrick Meier, Yadong Jiang, Afrooz Kazemi Vanhari, Edward Fagan, Le Chi Hung, Jamie Goggins

Civil Engineering Research in Ireland 2020

In recent years wind energy has been established as a leading source of renewable energy and, now, tidal energy is nearing commercial viability. In both cases, the reliability and longevity of certain key components of energy converters is paramount. The blades of these turbines are such key components. The turbine blades convert the energy of the resource into mechanical energy, encountering high variations in loading. In order to ensure that tidal turbine blades have the required structural capacity, mechanical static and fatigue testing of the blades is performed. This study examines the performance of wind and turbine blades as they …

Go to article

Equivalent Load Profile Development For Fatigue Testing Of A 13-Metre Wind Turbine Blade, Afrooz Kazemi Vanhari, Edward Fagan, Yadong Jiang, Patrick Meier, William Finnegan, Jamie Goggins Aug 2020

Equivalent Load Profile Development For Fatigue Testing Of A 13-Metre Wind Turbine Blade, Afrooz Kazemi Vanhari, Edward Fagan, Yadong Jiang, Patrick Meier, William Finnegan, Jamie Goggins

Civil Engineering Research in Ireland 2020

As blades are a key component of wind turbines, blade manufacturers are required to carry out static and fatigue tests of full-scale blades as part of the certification process prior to their deployment for commercial use. A 13-meter turbine blade is existing in the Large Structure Research Laboratory located in the Alice Perry Engineering Building, NUI Galway. We are going to test the blade (static and fatigue) in both the edgewise and flatwise directions. The blade is constructed from a novel glass-fibre reinforced powder epoxy composite material and consists of a double internal shear web. The blade is supported at …

Go to article

Static And Fatigue Testing Of A Full Scale Helical River Turbine Foil, Patrick Meier, William Finnegan, Patrick Cronin, James Donegan, Matthew Barrington, Le Chi Hung, Jamie Goggins Aug 2020

Static And Fatigue Testing Of A Full Scale Helical River Turbine Foil, Patrick Meier, William Finnegan, Patrick Cronin, James Donegan, Matthew Barrington, Le Chi Hung, Jamie Goggins

Civil Engineering Research in Ireland 2020

Despite opposition from some sectors, the imminent impact of increased hydrocarbon emissions on climate is generally accepted. Alternative energies from as many different sources must be exploited, in order to reduce the dominating market share of fossil fuels on the global energy budget. One such potential source is the capture of hydro-mechanical energy harnessed from river or tidal flows. The former is a mature industry in the case of large permanent hydroelectric plants, but smaller mobile, moored systems are of special interest in remote locations where grid connection is less widespread. Since servicing of these remote installations becomes costly, the …

Go to article

Performance Based Design Approach For Reinforced Concrete Precast Structures, Suhaib Salawdeh, Naveed Ahmad Aug 2020

Performance Based Design Approach For Reinforced Concrete Precast Structures, Suhaib Salawdeh, Naveed Ahmad

Civil Engineering Research in Ireland 2020

Precast concrete structures are becoming one of the most popular constructions in the world. They are expected to lead the global construction because they are fast, cheap and simple to construct with precast concrete elements produced in tightly controlled conditions. Moreover, they are sustainable products with high durability. Minimal waste is produced during manufacture and precast elements can be fully recycled at the end of their life. In this paper, a Performance Based Design (PBD) approach is proposed for multi-storey precast concrete frame structures. A full review of Direct Displacement Based Design (DDBD) methodology to design precast concrete structures is …

Go to article

Design Of Reinforced Concrete Beams With Web Openings, Gerry Sweeney, Suhaib Salawdeh Aug 2020

Design Of Reinforced Concrete Beams With Web Openings, Gerry Sweeney, Suhaib Salawdeh

Civil Engineering Research in Ireland 2020

Web openings in Reinforced Concrete (RC) beam construction are common place. An extensive review of the current research on RC beams with web openings is conducted. It is identified that a numerical model could be developed for RC beams with openings and validated against existing experimental research data. The Finite Element (FE) application, Ansys, is used to develop five different FE models. The numerical results compared well with experimental and analytical data. Overall model results are provided and discussed, with key findings and recommendations for future work presented.

Go to article

Demountable Reinforced Concrete Structures: A Review And Future Directions, Tahreer Fayyad, Ahmed Abdalqader Aug 2020

Demountable Reinforced Concrete Structures: A Review And Future Directions, Tahreer Fayyad, Ahmed Abdalqader

Civil Engineering Research in Ireland 2020

Consuming about 60% of natural resources, construction industry recently has been under a continuous pressure to ensure an efficient consumption of natural resources. Recent decades have witnessed some valuable steps toward making the construction industry more sustainable. This includes the trials to change the linear life cycle model to cyclic one by the consideration of the 3Rs; recycling, reusing and reducing to help in closing the material loop. However, recent studies have showed that the reason for demolition is not really the end-of-life span of structures but actually the lack of adaptability, also, demolition and recycling demand huge energy. So …

Go to article

Community-Engaged Learning: A Building Engineering Case Study, Jamie Goggins, Magdalena Hajdukiewicz Aug 2020

Community-Engaged Learning: A Building Engineering Case Study, Jamie Goggins, Magdalena Hajdukiewicz

Civil Engineering Research in Ireland 2020

Community engaged learning is a form of experiential education with a civic underpinning. Community engaged learning is embedded with the civil engineering curriculum at NUI Galway and is framed by a research orientation, commitments to civic engagement and building university-community partnerships, city-university partnerships and partnerships with other official agencies, so that community users can provide real learning problems and contexts for students and researchers and benefit from the results. This paper presents the positive experience of the authors in facilitating over 300 community engaged learning projects undertaken by undergraduate students in civil engineering at NUI Galway. The paper highlights how …

Go to article

The Powerful Impact Of Role Models And Workshops On The Future Direction Of Females In Stem – Cit Campus Week Model, Mary Moloney, Norma Welch Aug 2020

The Powerful Impact Of Role Models And Workshops On The Future Direction Of Females In Stem – Cit Campus Week Model, Mary Moloney, Norma Welch

Civil Engineering Research in Ireland 2020

The Faculty of Engineering and Science (FES) at Cork Institute of Technology (CIT) recognises the overwhelming evidence of a severe shortage in the uptake of female students of STEM courses and ultimately STEM careers. In its attempt to turn this tide, the faculty has pioneered a ‘female only’ campus week showcasing science, technology, engineering and maths (STEM) to TY students. This campus week commenced with a one-day event at CIT, in 2015 supporting the launch of the ‘I Wish’ initiative at Cork City Hall. The ‘I Wish’ (Initiative for women in STEM) is a not-for-profit group founded by three visionary …

Go to article

Embedment Of Un Sustainable Development Goals (Sdg) Within Engineering Degree Programmes, Thomas Adams, Sriram Kishore Kumar, Jamie Goggins, Richard Manton Aug 2020

Embedment Of Un Sustainable Development Goals (Sdg) Within Engineering Degree Programmes, Thomas Adams, Sriram Kishore Kumar, Jamie Goggins, Richard Manton

Civil Engineering Research in Ireland 2020

The UN Sustainable Development Goals (SDGs), established by the United Nations in 2015, are having a significant influence on policy development worldwide. However, there is a key question about whether current and future engineering graduates will be equipped to contribute significantly to the achievement of these goals and provide sustainable solutions. One way to consider this is to better understand the level of focus within existing curricula of engineering degrees towards the SDGs.

Go to article

Teaching Engineering Materials Through Experiential Learning, Roger P. West, David Taylor, Martin Burke, Michael Grimes, Shane Hunt Aug 2020

Teaching Engineering Materials Through Experiential Learning, Roger P. West, David Taylor, Martin Burke, Michael Grimes, Shane Hunt

Civil Engineering Research in Ireland 2020

An opportunity was afforded to the authors to design and implement a semester-long laboratory-based project to complement a traditional first year materials engineering lecture module. The examinable lecture component involved the customary description of physical, mechanical, and electrical properties of materials, exemplified by studying real examples of different materials used in solving design problems, such as the challenges of concrete’s weakness in tension, brittleness, creep, shrinkage and vulnerability to corrosion, bamboo’s unique sustainability and tensile strength, or in the electronic properties of semiconductor components. Comprising equal civil, mechanical and electrical elements, the project involved the development of an understanding of …

Go to article

Examining Large Student Cohorts - A Question Of Questions, Roger P. West, Michael A. Wride Aug 2020

Examining Large Student Cohorts - A Question Of Questions, Roger P. West, Michael A. Wride

Civil Engineering Research in Ireland 2020

With pressure to increase student numbers on academic courses worldwide, the trends in exam marks distribution for subject modules become more acute, with more distinct pattern characteristics reflecting student choices, topic and exam question difficulty, and lecturer marking severity, refinement and consistency. The practice of representing the overall exam results in a module through histograms enables normality, skewness and randomness to be identified, interrogated and understood. However, when dealing with large numbers of exam candidates (of the order of 1000 or more), an investigation of the averages and histograms for individual exam questions can further reveal refined explanations for poor …

Go to article

Effect Of Casting Method And Test Setup On Flexural Characterization Of Uhpfrc, Yuanye He, Esmaeel Esmaeeli, Marios Soutsos Aug 2020

Effect Of Casting Method And Test Setup On Flexural Characterization Of Uhpfrc, Yuanye He, Esmaeel Esmaeeli, Marios Soutsos

Civil Engineering Research in Ireland 2020

Ultra-High-Performance Fibre Reinforced Concrete (UHPFRC) has received extensive attention due to its excellent mechanical properties. UHPFRC not only offers a very high compressive strength, but also a unique tensile strain-hardening behaviour. Casting method is critical as it determines the fibre alignment, which in turn affects the performance of UHPFRC. In practice, casting in one single pour requires large equipment, large volume of concrete and it is time consuming and in general difficult to achieve. To evaluate the flexural behaviour, 3PB (three-point bending) and 4PB (four-point bending) tests are generally carried out following the methodologies recommended by the material testing standards, …

Go to article

Finite Element Appraisal Of The Strut And Tie Method For The Design Of Reinforced Concrete Structures, Seán Quinn, Kieran Ruane Aug 2020

Finite Element Appraisal Of The Strut And Tie Method For The Design Of Reinforced Concrete Structures, Seán Quinn, Kieran Ruane

Civil Engineering Research in Ireland 2020

The Strut-and-Tie Method (STM) can be used for the design of reinforced concrete elements such as deep beams and pile caps. STM allows the reduction of complex states of stress, which are known as D- or Discontinuity regions, within a structure to an assembly of simple stress states. Normal beam theory where B- or Bernoulli regions occur, does not apply. Up until recent times, design for deep beams was generally on simple rules and empirical formulas, however STM is now included in most modem design code provisions. Yet, there still remains a lack of clear understanding of the STM.

Go to article

Validation Of Finite Element Light Rail Bridge Model Using Dynamic Bridge Deflection Measurement, Paraic Quirke, António Barrias Aug 2020

Validation Of Finite Element Light Rail Bridge Model Using Dynamic Bridge Deflection Measurement, Paraic Quirke, António Barrias

Civil Engineering Research in Ireland 2020

Use of finite element modelling (FEM) to predict structural behaviour under static and dynamic loading conditions is a well-established aspect of the bridge design process. The Cherrywood Luas viaduct carries the Luas light rail system through proposed development lands at Cherrywood, South County Dublin. As part of development plans in the area it is proposed to create a new street adjacent and parallel to the existing viaduct with associated footpaths and landscaping. It is proposed to integrate the new structure supporting the street into the existing light rail bridge structure.

Go to article

Probabilistic System Analysis – Practical Examples For Railway Bridges, Lorcan Connolly, Marko Duranovic, Róisín Donnelly Aug 2020

Probabilistic System Analysis – Practical Examples For Railway Bridges, Lorcan Connolly, Marko Duranovic, Róisín Donnelly

Civil Engineering Research in Ireland 2020

The issue of maintenance of ageing bridges with insufficient budget allocations is well documented throughout Europe and beyond. To combat the issue of out of date assessment standards, insufficient structural information and deteriorating bridges, probabilistic assessment bridge techniques have evolved significantly over the past number of years. Previously, probabilistic analysis methods have been applied at the element level, where the highest element failure probability is assumed to govern for the structure. This fails to account for inherent redundancy which is often present in bridge structures. For example, the development of a plastic hinge due to elastic failure in a steel …

Go to article

Beam-To-Column Minor Axis Moment Connections, Ali Purcell, John J. Murphy, Kieran Ruane Aug 2020

Beam-To-Column Minor Axis Moment Connections, Ali Purcell, John J. Murphy, Kieran Ruane

Civil Engineering Research in Ireland 2020

Steel moment connections are used where continuity is required between beam and columns. Research on moments connections has primarily focussed on major-axis connections. An in-depth investigation of I.S. EN 1993-1-8 was completed to identify the design rules of connections. Simple connections such as cleats, fin plates and splices were investigated briefly in order to gain a greater understanding of how they behave and transfer load before researching two types of minor axis moment connections; one where the end plate is connected directly to the column web and one where the end plate is bolted to another plate which is welded …

Go to article

Effective Measures To Improve Road Safety At Toll Plazas In Ireland, David Collery, Grzegorz Gorecki Aug 2020

Effective Measures To Improve Road Safety At Toll Plazas In Ireland, David Collery, Grzegorz Gorecki

Civil Engineering Research in Ireland 2020

Road safety statistics from toll plazas, show that the occurrence of collisions in their vicinity is often disproportionally higher than on other sections of the same roads. Despite the presence of lower speed limits in these locations, various manoeuvres, especially on the approaches to toll plazas, pose higher risk of collisions. A lack of strictly unified design standard for Irish toll plazas is the reason for different road safety approach in various locations. The standards are mainly focused on toll plazas operation (Abuzwidah & Abdel-Aty, 2015). Also Abdel-Aty et al. (2016) mentions a clear lack of design codes or guidelines …

Go to article

Implementing Sustainable Transport Strategies In Ireland, Kevin Gallagher, Brian Mccann Aug 2020

Implementing Sustainable Transport Strategies In Ireland, Kevin Gallagher, Brian Mccann

Civil Engineering Research in Ireland 2020

Sustainable Urban Mobility Plans (SUMPs) provide a concept and process for the planning, development and implementation of urban transport strategies. EU SUMP guidelines have not been utilised in Ireland. The research question asks if there is any benefit in developing Irish urban transport strategies as SUMPs. The literature review examines the historical development of EU and Irish transport policy and reviews academic reports and journal articles on SUMPs. The EU SUMP process is reviewed in detail before reviewing recently published Irish urban transport strategies and a European SUMP case study. The research methodology involved collecting qualitative data from primary sources, …

Go to article

Analysis Of Inclement Weather On Traffic Flow – An Irish National Roads Case Study, Beatriz Martinez-Pastor, Páraic Carroll Aug 2020

Analysis Of Inclement Weather On Traffic Flow – An Irish National Roads Case Study, Beatriz Martinez-Pastor, Páraic Carroll

Civil Engineering Research in Ireland 2020

Transportation networks and infrastructure are increasingly exposed to and effected by inclement weather. The rise in the frequency and intensity of these events is increasingly affecting the normal operation, performance and functionality of roads and highways, leading to costly losses. Inclement weather creates risky and hazardous situations not only on the main roads, such as motorways, but also, on the smaller roads connecting rural parts of the country that experience lower traffic volumes. The effects of weather events, such as rainfalls or snowfalls, have been primarily addressed in main roads, leaving, smaller roads on hold. This has created a lack …

Go to article

Identifying Damage In A Bridge By Analysing Rotation Response To A Moving Load, Claire Mcgeown, Farhad Huseynov, David Hester, Patrick Mcgetrick, Eugene O'Brien, Vikram Pakrashi Aug 2020

Identifying Damage In A Bridge By Analysing Rotation Response To A Moving Load, Claire Mcgeown, Farhad Huseynov, David Hester, Patrick Mcgetrick, Eugene O'Brien, Vikram Pakrashi

Civil Engineering Research in Ireland 2020

A recent survey of Europe’s highway infrastructure has concluded that almost half of Europe’s bridges are nearing the end of their design live. Work in the wider Structural Health Monitoring sector is aiming to develop reliable and cost-effective methods for verifying condition, remaining service life and safety of ageing structures. Most bridge condition assessment methods are based on deflection, acceleration or strain measurements. This paper looks at the possibility of using rotation measurements as a main parameter to identify damage. This study looks at numerical analyses of a moving point load on a one-dimensional bridge model to provide the theoretical …

Go to article

Evaluation Of Sustainability Of Irish Road Transport Sector And Its Comparison With European Union Countries, Megha Jose Kandappasery, Boban Djordjevic, Bidisha Ghosh Aug 2020

Evaluation Of Sustainability Of Irish Road Transport Sector And Its Comparison With European Union Countries, Megha Jose Kandappasery, Boban Djordjevic, Bidisha Ghosh

Civil Engineering Research in Ireland 2020

Transport sustainability has been the topic of discussion since the past two decades and its importance has been recognised by most countries. Therefore, strategies and policies incorporating sustainable growth and development have been initiated as a measure to steer transport growth in the right path. This notion has led researchers to develop many ways of measuring transport sustainability, especially the frequently used road transport sector. Measurement of sustainability of the transport sector has been carried out using different methodologies in the past. Considering the complexity and multi-dimensional aspects of sustainability, multi-criteria analysis decision making tools have been considered in this …

Go to article

Effect Of Motorways On Road Safety In Ireland, Parth B. Shah, Ajinkya S. Mane, Bidisha Ghosh Aug 2020

Effect Of Motorways On Road Safety In Ireland, Parth B. Shah, Ajinkya S. Mane, Bidisha Ghosh

Civil Engineering Research in Ireland 2020

In Ireland, high-speed motorways were built around the year 2008 to 2010. In order to investigate the effect of motorways on road safety, the research paper aims at identifying the shift of contributing factors related to vehicular crashes, before-and-after the construction of motorways/expressways. Typically, several factors are involved for accidents on motorways, but a better understanding is needed to find the relationship between injury severity and its contributing factors. The current study seeks to find the contributing factors for before-and-after the construction of motorways. In this study, the before period is considered from 2003-2007, and 2012 to 2016 have been …

Go to article

A Numerical Analysis Of Stone Masonry Arch Bridges And Structural Backing, Thomas Kerr, Tomás O'Flaherty Aug 2020

A Numerical Analysis Of Stone Masonry Arch Bridges And Structural Backing, Thomas Kerr, Tomás O'Flaherty

Civil Engineering Research in Ireland 2020

Masonry arch bridges are a significant part of the transport network system in Ireland. Therefore, it is essential that we maintain the existing masonry bridge stock as a valuable asset and protect these bridges from a heritage viewpoint. The increased structural demands placed upon these bridges coupled with more sophisticated analysis methods have required and enabled a greater understanding of the response of masonry arch bridges to ever increasing traffic loading. When loaded, the structure acts in compression and the arched configuration enables the transmission of loads through the individual masonry units to the supporting piers or abutments. The stability …

Go to article

Case Study: Calculating Bridge Displacement From Accelerations For Load Assessment Calculations, Andrew Bunce, David Hester, Su Taylor, James Brownjohn, Yan Xu Aug 2020

Case Study: Calculating Bridge Displacement From Accelerations For Load Assessment Calculations, Andrew Bunce, David Hester, Su Taylor, James Brownjohn, Yan Xu

Civil Engineering Research in Ireland 2020

Recovering displacement from accelerations has been demonstrated on bridges previously, with the main challenges being the presence of low frequency noise and the need for user-calibrated filters to overcome this. Therefor this paper presents a case study of a low-cost load test procedure, using bridge acceleration to calculate displacement. Typical approaches look use filtering or signal collecting methods to mitigate noise, however this study uses an aviation grade accelerometer to minimise noise in the acceleration signals and employs a quality control procedure to alert the user to the quality/reliability of the results. A live/open bridge is tested using a loaded …

Go to article

A Comparative Study Of Linear And Nonlinear Analysis Of High-Rise Buildings Against Wind Loads, Muhammad Ali, Suhaib Salawdeh Aug 2020

A Comparative Study Of Linear And Nonlinear Analysis Of High-Rise Buildings Against Wind Loads, Muhammad Ali, Suhaib Salawdeh

Civil Engineering Research in Ireland 2020

Tall and slender buildings present design challenges to structure designer to establish maximum sway against the wind loads. In Ireland and UK, most engineers use linear static analysis to determine forces and moments in the RC stability cores due to fact that linear analysis is less sophisticate and is easy to use. Engineers use E & I modification factors to take account of reduced stiffness of walls due to cracked concrete sections to complete the sway assessment. Non-linear analysis is another approach that can be used however it is not popular among many engineers as it requires more realistic material …

Go to article

Performance Validation Of A Self-Centring Steel Structure Using Robust Data Sets From Shake Table Testing, Patrick Mccready, Yadong Jiang, Suhaib Salawdeh, Hatim Alwahsh, Brian Broderick, Jamie Goggins Aug 2020

Performance Validation Of A Self-Centring Steel Structure Using Robust Data Sets From Shake Table Testing, Patrick Mccready, Yadong Jiang, Suhaib Salawdeh, Hatim Alwahsh, Brian Broderick, Jamie Goggins

Civil Engineering Research in Ireland 2020

In recent years there has been a shift in seismic design from moment resisting frames to concentrically braced frames (CBF’s). CBFs resist the actions created in seismic events through energy dissipation in the form of plastic deformations in braces. This paper analyses the performance of a novel self-centring CBF (SC-CBF) which aims to reduce interstorey drift and residual deformations in a frame through the uses of post tensioned (PT) strands running parallel to the beam members anchored to the exterior flange of columns. The system works upon the principle of closing gap openings which open at joints between beams and …

Go to article

First Prev Next Last