Mr JAMES POWER

Mr JAMES POWER
AFHEA

Research PG

Overview
Mr JAMES POWER
Mr JAMES POWER

Contact Details

Email
Address
The University of Aberdeen Room 197
School of Engineering
Fraser Noble Building
Kings Campus
University of Aberdeen
Aberdeen | AB24 3UE
Web Links

Biography

University Employment

2015-Present

  • Non-Medical personal Assistant with Student Advice & Support (Further Information)
  • Student Demonstrator (see Teaching/Teaching Responsibilities)

University Committees Membership

2017-2018

  • Engineering PGR SSLC (Postgraduate Research Student-Staff Liaison Committee)
  • Athena Swan - PGR Data Team Assistant

2016-2017

  • Engineering PGR SSLC

University Activities

I have been involved in various outreach activities with The University of Aberdeen to promote careers in engineering to pupils of primary and secondary schools, most recently the Girls in Engineering conference at St. Margaret's School for Girls in Aberdeen with Dr Israel Osofero & Dr Euan Bain (more information here). In the past I have aided similar activities held at the university such as HeadStart 2016 coordinated by Dr Oleksandr Menshykov and the Aspire North schools outreach project in 2016. I have also helped out in various engineering open days with Dr Israel Osofero by carrying out Civil Engineering demonstrations and tours to prospective students.

I am also a STEM Ambassador and try to engage in activities outside the university when I can spare the time. I know from experience that these type of activities are beneficial as similar events held at my secondary school ended up becoming the first step to where I stand today.

Over the course of my Ph.D. I have had the chance to help out around the university in many ways, such as providing ice breaker sessions to new undergraduate students and helping to induct new postgraduate research students in various teaching scenarios. I am always available to help out so don't hesitate to get in touch.

Education

2015-Present

  •  Ph.D. Structural Engineering, The University of Aberdeen.

2013-2014

  •  M.Sc. Subsea Engineering, The University of Aberdeen.

2010-2013

  •  BEng (Hons) Civil & Structural Engineering, The University of Aberdeen.

2010-2013

  •  BEng Civil Engineering, Waterford Institute of Technology.

Engineering Employment History

2014-2015

  •  Structural Engineer, Various Projects - ORS Ireland, Dublin, Ireland.

2013

  •  Site Civil Engineer, Premier Inn Dyce - Subcontractor, Aberdeen, UK.

2011-2012

  •  Civil/Structural Engineer, Daunia Mine - Whittens Group, Moranbah, Australia.

2011

  •  Site Civil Engineer, Primo Small Goods - Shamrock Civil, Brisbane, Australia.
Research

Current Research

Ph.D. topic - Moment resisting fin-plate connections in tubular steel and composite columns.

Research has concluded that hollow sections provide excellent structural properties in comparison to open sections (Wardenier et al., 2010). Structural advantages of the Circular Hollow Section (CHS) and Rectangular/Square Hollow Section (RHS/SHS) include increased resistance in compression, tension, bending, and torsion. A significant advantage is the CHS’s resistance to wind loading, considering the structural make up of a tree, it is no coincidence that trees have maintained a circular form. A circular form will enable a lower drag coefficient in comparison to open sections. This flow pattern is the same for any fluid flowing over a CHS e.g. wave loading on CHS’s in subsea applications.

Hollow section columns are structurally efficient and architecturally preferred due to pleasing aesthetic features in comparison to open sections. They can also offer an increased fire-resistance rating and enhanced strength benefits if filled with concrete to form a composite column. The disadvantage in using the particular detail is that they are awkward to connect floor beams to. A standard connection for this situation, where the beam is transferring shear only, is the use of a fin-plate aligned longitudinally on the column. This research project aims to investigate the performance of tubular columns subjected to moments applied through longitudinal fin-plates.

Fin-plate connections in tubular members provide many practical advantages. This study aims to extend the application of shear resisting fin-plates of such a detail to include the transfer of significant bending moments from the connecting beam, such as would be associated with rigid or semi-rigid beam-column joints. A means of quantifying the effect of a moment in the tubular column around the area of the connection is currently absent and will be developed during this research.

The objectives will be to perform extensive parametric studies using the industry-standard nonlinear finite element analysis software, Abaqus, the results from the simulations will be compared to results obtained from an experimental investigation (and available test data). The aim of the research is to develop and validate a design method for a moment-resisting fin-plate connection to tubular columns, which will take into account column and fin-plate geometry, presence or absence of concrete infill, multi axis connections, and co-existing axial compression in the tubular column.

There is evidence to prove that fin-plate connections to CHS’s are currently in use, however the majority of these connections are used to resist shear only. Simple connections are more commonly used in industry, this focuses the structural design on cross section properties to resist bending moments in the beam. Simple connections are limited in use, for example a frame with long spanning beams will require a moment transferred to the joints to reduce the deflections of the long spans. For longer span construction there is a definite requirement for moment-resisting joints. Moment-resisting connections are categorised as either rigid or semi-rigid. Rigid connections require more engineering in comparison to simple connections. Due to the moments applied through the connections in rigid design the column cross sections are greater in comparison to semi-rigid or simple design. In these cases a structural engineer can reduce costs by specifying a tubular column section to replace an open section, however, a means of designing an efficient beam-column connection in this case is currently lacking in industry. Semi-rigid joints are the category between simple and rigid joints. Semi-rigid construction utilises the hogging moment at the joint to lower the maximum moment in the beam, resulting in lighter beam cross sections. The benefit to the beams is not as great as in rigid construction, where there is larger hogging moments at the joint, resulting in even lighter beam cross sections. For the long spanning beams, the use of semi-rigid construction will not provide any significant benefits to justify the design, rigid construction would normally be used in this case. Semi-rigid connections are mainly used in wind moment construction. Wind moment frames do not require bracing, thus enabling additional cost savings.

In summary, a particular area of industrial application for the moment-resisting fin-plate connection to tubular column will be in rigid construction for long spans, or semi-rigid construction such as wind moment design. On completion of the research, the results will likely lead to significant application in the building industry.

Teaching

Teaching Responsibilities

Role - Student Demonstrator

2017/2018

EG2004 Fluid Mechanics & Thermodynamics - Tutorial & Fluid Mechanics Laboratory Session

EM3015 Stress Analysis - Tutorial & Laboratory Session

2016/2017

EG1510 Fundamental Engineering Mechanics - Tutorial & Laboratory Session

EM3015 Stress Analysis - Tutorial & Laboratory Session

EM3018 Fluid Mechanics - Tutorial

EA3720 Civil Engineering Design And Surveying And Hydrology Field Trip - Civil Engineering Design Activity

EA3518 Mechanics of Structures - Tutorial

2015/2016

EG1510 Fundamental Engineering Mechanics - Tutorial & Laboratory Session

EM3015 Stress Analysis - Tutorial & Laboratory Session

EM3511 Dynamics 1 - Tutorial

EA3518 Mechanics of Structures - Tutorial

EM40JJ Fluid Dynamics - Tutorial

EA40JG Advanced Structural Design - Tutorial

Further Info

Continuing Professional Development

Principles of Learning and Teaching in Higher Education

Seminars

FLUIDS AND STRUCTURES SEMINAR 2016/2017

Speaker: James Power - r01jfp15@abdn.ac.uk

12/10/2016 – 12.30 – FN037, Fluids Teaching Lab

Moment resisting fin-plate connections in tubular steel and composite columns

Tubular steel columns are structurally efficient and architecturally preferred due to pleasing aesthetic features in comparison to open sections (H-shape universal columns). They can also offer an increased fire-resistance rating and enhanced strength benefits if filled with concrete to form a composite column. The disadvantage in using the particular detail is that they are difficult to connect floor beams to. A standard connection for this situation, where the beam is transferring shear forces only, is the use of a fin-plate aligned longitudinally on the column.

This research investigates the performance of tubular columns subjected to moments applied through longitudinal fin-plates, which will extend the application of shear only fin-plates of such a detail to include the transfer of significant bending moments from the connecting beam, such as would be associated with rigid or semi-rigid connections. The aim of the research is to develop and validate a design method for a moment-resisting fin-plate connection to tubular column, which will take into account column and fin-plate geometry, presence or absence of concrete infill, multi-axis connections, and co-existing axial compression in the tubular column. A means of quantifying the effect of a bending moment in the tubular section around the area of the connection is currently lacking or absent.

The objectives will be to perform extensive parametric studies using the industry-standard nonlinear finite element analysis software, Abaqus, the results from the simulations will be compared to data obtained from an experimental investigation and published experimental data.

 

Biography

James first obtained an ordinary BEng in Civil Engineering at Waterford Institute of Technology, Ireland. Upon completion he made his way to the University of Aberdeen to enrol on the BEng in Civil/Structural Engineering and later the MSc in Subsea Engineering. James’ BEng dissertation researched the performance of Circular Hollow Steel Sections subjected to bending moments applied through longitudinal fin-plates, he has also carried out research into offshore tubular steel sections as a part of his MSc. After some years working on civil engineering projects and in structural design offices, James is back in Aberdeen to develop his previous research into tubular steel for structural use.

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