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SYMPOSIUM PROGRAMME0830 hrs Registration
0900 hrs Welcome Address Mr GUI Boon Sui
Chairman, Regency Steel Asia Pte Ltd
0915 hrs Eurocodes, the Way Forward - a Tale of Actions, Executions and ImperfectionsEr. K. THANABAL, Building and Construction Authority of Singapore
1000 hrs Morning Refreshment Break
1030 hrs From BS5950 to EC3: Evolution or Revolution? Prof. CHIEW Sing-Ping, Nanyang Technological University
1115 hrs The Right Tool for the Right Job the Appropriate Use ofAdvanced Non-linear Structural Analysis in EC3
Prof. TAN Kang-Hai, Nanyang Technological University
1200 hrs Panel Discussion Session 1
1230 hrs Lunch Break
1330 hrs Getting it Covered Design of the National Stadium Roof Ms. Jane NIXON,ARUP Australia
1415 hrs Differences between BS5950 and EC3 on Member Design Prof. LIE Seng-Tjhen, Nanyang Technological University
1500 hrs Afternoon Refreshment Break
1530 hrs Bolted and Welded Connection Design to EC3 Dr. GHO Wie-Min, Director, Maritime Production Research Singapore
and Consultant, Archipelago Offshore Engineering Inc. Indonesia
1615 hrs Dynamic Fatigue Assessment and Design of Container Quay Crane to EC3 Prof. LEE Chi-King, Nanyang Technological University
1700 hrs Panel Discussion Session 2
1730 hrs Adjournment for the Day
Organized by
SchoolofCivilandEnvironmentalEngineering
NanyangTechnologicalUniversity
Sponsored by
RegencySteelAsiaEndowmentFund@ NTU
Accreditation:7 PDU Points Awarded
Regency Steel Asia Symposium on
Migrating from BS5950 To Eurocode 3Wednesday, 28 September 2011 8:30 am to 5:30 pmLT1A, North Spine, 1st Level, Nanyang Technological University
ADMISSIONISFREE.
ALLAREWELCOM
E!!!
Seatsarelimited.
Registrationwillstopwhenseatsarefull.
Free!Delegates Kit includes:
2GB USB drive with soft copies
of all presentation materials
Book on Design
of Steel Structureswith worked
examples to EC3
(175 pp)
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Speakers Presentation and Profile
K THANABAL is the Deputy Director (Bridges & Structural
Department) with the Building Engineering Division of BCA.
He has 20 years of working experience that covers design and
project supervision. He holds a masters degree in structural
engineering from NUS. He is actively involved in various code
review committees as part of our Eurocode migration exercise.
In his current regulatory role, he has introduced various initiativesespecially for the structural steel industry to enhance its resilience
and sustainability such as BC1: 2008 and a quality assurance
scheme on re-use of steel strutting system for deep excavation
works. He also serves the industry and profession in various
committees such as the Singapore Structural Steel Societys
Council, SACs Council Committee for Inspection Bodies, AVAs
Institutional Animal Care and Use Committee and the Institution
of Engineers Singapore (Geotechnical Division).
CHIEW Sing-Ping is Associate-Professor and Head of the
Division of Structures and Mechanics in the School of Civil and
Environmental Engineering, Nanyang Technological University.
He is a Past President and Honorary Fellow of the SingaporeStructural Steel Society and he has served as council and executive
member of the Institution of Engineers, Singapore. He has also
served the industry and profession in various other capacities
and currently a member of the Panel of Expert Advisors of the
Land Transport Authority and a member of the Building and
Construction Authority Academy Advisory Panel. His major areas
of research interest are in fatigue and fracture of steel structures,
materials and tubular construction.
TAN Kang-Hai obtained his BSc(Eng) and PhD from the University
of Manchester. Prior to joining NTU, he worked as a graduate
engineer in Ove Arup & Partners. He won the UK IStructE Henry
Adams Award in 1989 for his research on structural sandwichpanels. He is currently a Professor of Structural Engineering and
Co-Director of the Protective Technology Research Centre in NTU.
He has been involved in several fire engineering consultancy works
which involved analysis of steel structures. He has been teaching
a graduate course on structural stability since 2005. His research
team has developed a finite element program FEMFAN3D which
could be used to ascertain whether partial failure(s) of column(s)
would lead to progressive collapse. Since 2005, he has been
an international reviewer of the UK EPSRC Peer Review College,
reviewing research proposals on steel structures.
BCA will be announcing the implementation of the Eurocodes in Singapore soon. This symposium will focus on the structuralEurocode 3 (EC3) and will address issues and challenges arising from the migration of the current BS5950 to the new Eurocode 3
for steel buildings. As usual, structural design is the prerogative of the structural engineers and the burden of switching over toEC3 will fall mostly on their shoulders, and this migration will affect them most. This symposium is most timely as it provides aplatform for design engineers and others who are involved in structural steelwork design to discuss this migration which is certainly
the most comprehensive and substantial to date. Engineers need to understand the scope and depth, and where the changes arestarting from the basis of design in which actions are combined with reduced partial factors to the bolts and nuts in the steel joints.Re-training will be absolutely critical to avoid any misinterpretation and will occupy a significant portion of the engineers time, so
it is good to start early with this free symposium.
About this Symposium
Eurocodes, the Way Forward - a Tale of Actions,Executions and Imperfectionsby Er K. THANABAL
This presentation will cover an overview of Singapores
decision to adopt the Eurocodes, current status of
development of our National Annexes, impacts ofEurocode adoption and implementation time frame.
From BS5950 to EC3: Evolution or Revolution?by Prof. CHIEW Sing-Ping
This presentation will give an overview of the majorchanges in Eurocode 3 including basis of design, actions
and combinations, structural analysis, structural stability,
member and joint resistances, brittle facture and use of
high strength steel.
The Right Tool for the Right Job theAppropriate Use of Advanced Non-linearStructural Analysis in EC3
by Prof. TAN Kang-Hai
This presentation covers the different types of analysis
that are available for the limit state under consideration.
These include linear elastic analysis, geometrically non-
linear elastic analysis, materially non-linear analysis, and
geometrically-and-materially-nonlinear analysis. The
assumptions, similarities and differences of these analyses
will be highlighted. Since computational cost and time
involved in modelling increases disproportionately with
the use of geometrical nonlinearity analysis, it is prudent
to know when engineers can use linear elastic analysis
in lieu of the more advanced analysis. EC 3 also provides
some guidance on the use of more advanced analysis.
A steel frame example will be used to highlight the
differences of these analyses, and in the light of EC3.
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Speakers Presentation and Profile
LIE Seng-Tjhen is Associate-Professor in the School of Civil and
Environmental Engineering, Nanyang Technological University.
He has been lecturing in the design of steel structures using
BS5950: 2000 for many years, and he was the task force leader
in developing the Singapore National Annex for EC3: Part 1-9:
Fatigue. His main research interest has been in the field of fatigue
and fracture of welded joints since his earlier time a research
student at UMIST in U.K. The research interest is focused on
damage and fracture mechanics, developing failure assessment
diagram for cracked welded structures, in particular its direct
practical application to fatigue and fracture assessment of cracked
onshore/offshore welded structures. For the past decades, he has
also been associated with research related to welding technology,
weld defects, size effects, weld ability of high strength steels and
residual stresses. He is a Senior Member of The Welding Instituteand a registered Chartered Engineer with the Engineering Council,
UK. Recently, he has secured several major industrial funded
projects in the oil and gas industry. In this related research field,
he has published more than 120 journal and conference papers.
GHO Wie-Min has more than 20 years comprehensive experience
in engineering design, fabrication and installation. He graduated
with BEng in Civil Engineering from University of Sheffield and
MSc DIC in Earthquake Engineering from Imperial College
London. He pursued PhD programme on tubular joint research
under recommendation of J Ray McDermott, 1997. Dr. Gho
was the task force member in developing the Singapore NA for
EC3. He was previously the assistant professor and the director
for MSc programme in offshore engineering, NTU, 2001-06. Heis currently the director at Maritime Production Research and
consultant at Archipelago Offshore Engineering Inc Indonesia.
LEE Chi-King is Associate-Professor in the School of Civil and
Environmental Engineering, Nanyang Technological University. He
has been working in the area of finite element modelling for more
than twenty years. He is an expert in the areas of finite element
model generation, error analysis and adaptive algorithms. In the last
thirteen years, he also worked on the topics of fatigue analysis of
tubular joints and high strength steel structures. He has published
more than 70 international journal papers and is a reviewer for
many international journals including International Journal of
Fatigue and Engineering Fracture Mechanics. He is also a consultantfor an integrated structural analysis and design software company
on the development of finite element analysis program.
Differences between BS5950 and EC3 onMember Designby Prof. LIE Seng-Tjhen
Generally, Eurocode 3 is expected to be more economical
than BS5950:2000. The main difference between
both design codes lies in the design procedures. This
presentation shows the general differences in the
conventions of member axes, symbols and terminology,
partial factors, yield strength of steel and cross-section
classification. It demonstrates the differences in the
values of the design checks for beam and column designs
using general and simplified methods.
Bolted and Welded Connection Design to EC3by Dr. GHO Wie-Min
This presentation which is based on EN version of
Eurocode 3: Design of Steel structures, Part 1-8: Design
of joints, is to provide the relevant technical background
and to highlight the main differences of design approach
with that of BS5950-1 for typical building steelwork
connection design. The basis of design and the designresistance of the bolted and welded beam-to-column
joints and the welded uni-planar and mutli-planar hollow
section joints will be briefly discussed.
Dynamic Fatigue Assessment and Design ofContainer Quay Crane to EC3by Prof. LEE Chi-King
In this presentation, an overview of the fatigue design
philosophy of EC3: Design of Steel structures, Part 1-9:
Fatigue will be given. A concise summary of the essential
concepts and theoretical bases of fatigue assessment
for steel structures will be given. The main differences
between the Eurocode 3 and the corresponding BScounterpart BS7608 will be highlighted. A practical
example of dynamic fatigue assessment of container quay
crane will be employed to demonstrate the essential steps
for fatigue design and assessment of an engineering
structure in which fatigue damage is the main criterion
for ultimate limit state check.
Jane NIXON is an Associate in Arup Australia, joining Arup
in early 2002 after completing degrees in Engineering and
Science at The University of Sydney. Since joining Arup, she has
participated in a range of multi-disciplinary and offshore projectsusing a variety of international standards and codes of practice.
Jane has worked on a variety steel structures gaining specialist
experience in light weight long span structures. This has been
gained through a variety of projects and structures from cable
and tension structures of Kahlifa Stadium for the 2006 Asian
Games to the dramatic roof of the London Aquatics Centre for
the 2012 Olympics. Following from this Jane is currently involved
in leading the design for the Singapore Sports Hub roof. She has
been involved in the many stages of the project from scheme
design in 2009, framing design in 2010 and now the connection
design working with the steel subcontractor through issues of
fabrication and erection.
Getting it Covered Design of the NationalStadium Roofby Ms. Jane NIXON
This presentation will introduce the many design
features of the 300 m diameter dome roof which will
be a landmark structure in Singapore when completed.
With a dome roof spanning 312 m and a height above
pitch level of over 80 m, the new stadium will be an awe
inspiring building. The shell dome structure is formed by
using a series of crossing triangular trusses to provide
a highly efficient structure for the roof. For this span of
the roof, the depth of the steel structure is less than 5
m deep at the centre of its span and 2.5 m as it comes
towards the ground. The movable roof is provided to
enhance the multi-use of the stadium facility.
