VOL. 20 NO. 2 MAY 2007 MICA (P) No. 094/05/2007STEEL NEWS & NOTESSingapore Structural Steel Society on the Internet: www.ssss.org.sg

Conte

nts

The President’s Corner -------------------------------- pg 2

23rd AGM ----------------------------------------------- pg 3

Exhibition and Seminar on

Sustainable Construction----------------------------- pg 4

SSSS Steel Design Awards 2007 --------------------- pg 6

Winners of the Steel Design Awards 2004 -------- pg 7

Site Visit to the Singapore Flyer --------------------- pg 8

Site Visit to Tanglin Trust School ------------------pg 10

New Members -----------------------------------------pg 10

Accredited Structural Steel Fabricators -----------pg 11

SSSS-BCA Golf Tournament &

SSSS-Continental Steel Challenge Trophy -------pg 12

SSSS-BCA Scholarships------------------------------pg 14

New Products & Services ----------------------------pg 14

8th Pacific Structural Steel Conference -----------pg 15

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The President’s CornerDear fellow-members,

I t has f inal ly happened. Theconstruction sector is the starperformer of our economy in the firstquarter of 2007. It posted a 9.7 %growth which was driven by thebuilding boom in the Sentosa andMarina Bay areas and an upturn indemand for high-end residentialproperty. Even the sand ban since

February could not slow down this growth which is expectedto last till at least next year, probably longer.

And we have been really busy. The SSSS worked with theBuilding and Construction Authority to jointly organise theSustainable Construction Campaign from 23 April to 11 May2007. The main objective of this campaign was to educate thepublic and industry on the meaning and importance ofsustainable construction. Sustainable construction is the adoptionof building designs, construction methods and materials thatare environmentally friendly. It will enhance the resilience ofour building and construction industry by using materials andresources that are available from many sources in the world.And of course, the best example of such a material is steel.

A highlight of this campaign was a 3-week exhibition at theatrium of URA Centre. SSSS members like Bluescope Lysaght(S’pore) Pte Ltd, Corus South East Asia Pte Ltd, LCP BuildingProducts Pte Ltd, TTJ Design and Engineering Pte Ltd andYongnam Holdings Limited took an active part in the exhi-bition. There was also a series of talk, seminars and a conferenceduring this period which were very well attended. To top it all,bus loads of students also dropped by at the exhibition.

The campaign may be over but the challenge to switch ourindustry to sustainable construction, especially through thegreater use of steel has only just begun. The SSSS should playa leading role in this important endeavor. We have already laida strong foundation for this through various projects in thepast few years – the Steel Fabricators’ Accreditation system,the Structural Steel Supervisor (StS) Certification Course, theSSSS Scholarship Fund, the Steel Design Awards and ourcontinuing education programme for steel practitioners. Wewill continue to work on these and more. For example, theStructural Steel Engineers’ Course has been developed andwill be ready for its first intake in July.

I urge all of you to play an active role in these various projectswhich will not only strengthen the steel sector but will alsoenhance the resilience and capability of the larger buildingand construction industry.

Warmest Regards,Tan Tian Chong

Published by :Singapore Structural Steel Society1-B Aliwal Street, Chenn Leonn BuildingTel: 6735 6255 Fax: 6238 6530avconsul@pacific.net.sg www.ssss.org.sg

Printer : Motion Printers & Publications Pte LtdBlk 3023 Ubi Road 3 #06-08 Singapore 408663Tel: 6783 3493 Fax: 6846 1636 Email:123@motionprinters.com

Council Members 2007/2008PresidentMr Tan Tian Chong, Building & Construction Authority(Tel: 6325 5921 email: tan_tian_chong@bca.gov.sg)

Immediate Past PresidentAssoc Prof Richard Liew, National University of Singapore(Tel: 6874 2154 email: cveljy@nus.edu.sg)

First Vice-PresidentMr Ho Wan Boon, CPG Laboratories Pte Ltd(Tel: 9769 6021 email: ho.wan.boon@cpgcorp.com.sg)

Second Vice-PresidentMr Bernard Chung, Corus South East Asia Pte Ltd(Tel: 6297 6678 email: Bernard.Chung@corusgroup.com)

Honorary SecretaryMr M.S. Islam, Singapore Polytechnic(Tel: 6879 0464 email: sirajul@sp.edu.sg)

Honorary TreasurerMr Anthony Tan, BlueScope Lysaght (Singapore) Pte Ltd(Tel: 6661 1215 email: Anthony.Tan@bluescopesteel.com)

Honorary AdvisorsMr Lim Keng Kuok, CPG Consultants Pte Ltd(Tel: 6357 4608 email: lim.keng.kuok@cpgcorp.com.sg)Assoc Prof Richard Liew, National University of Singapore(Tel: 6874 2154 email: cveljy@nus.edu.sg)

Council MembersAssoc Prof Ang Kok Keng,National University of Singapore(Tel: 6874 2570 email: cveangkk@nus.edu.sg)Mr Chor How Choon, The 22nd Mettallurgical ConstructionCorporation (S) Pte Ltd(Tel: 9879 1398 email: chor_howchoon@yahoo.com.sg)Mr Look Boon Gee, LOOK Architects(Tel: 6323 8183 email: lookbg@lookarchitects.com.sg)Mr John Sanderson, William Hare (SEA) Pte Ltd(Tel: 9856 8036 email: sandersonj@sandersongroup.com)Mr Chia Wah Kam, Parsons Brinckerhoff Pte Ltd(Tel: 6290 0628 email: chia.wk@pbworld.com)Dr Ng Yiaw Heong, Petro Process System Pte Ltd(Tel: 6545 9968 Ext 500 email: ngyh@toepl.com.sgMs Serena Yap, TY Lin International Pte Ltd(Tel: 6278 3383 email: serenayap@tylin.com.sg)

Editorial Board :Dr Ang Kok Keng Mr Bernard ChungMr M.S. Islam (Hon Editor) Mr Lauw Su WeeDr Ng Yiaw Heong Mr Look Boon Gee

STEEL NEWS & NOTES welcomes contributions on any suitabletopic relating to steel use and construction. Publication is at thediscretion of the Editor. Views expressed are not necessarily thoseof the SSSS, the Editor or the Publisher. Although care has beentaken to ensure that all information contained herein is accuratewith relation to either matters of fact or accepted practice at thetime of publication, the SSSS and the Editor assume noresponsibility for any errors in or misinterpretation of suchinformation or any loss or damage arising from or related to itsuse. No part of this publication may be reproduced without thepermission of the SSSS.

23rd AGM of the Singapore Structural Steel Society

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The 23rd AGM of the Singapore Structural Steel Society was heldat the Furama Waterfront Hotel on 12 March 2007 at 7.30pm.Society Hon Secretary Mr M.S. Islam called the meeting to orderat 7.30pm after one hour postponement due to lack of quorum.During this one hour recess members present were presented withan interesting talk on the Singapore Flyer by Mr Kei Ito, ChiefEngineer in charge of its construction.

The following is President Mr Tan Tian Chong’s glowing report ofthe Society’s eventful and rewarding year.

Annual Lecture and DinnerTop on the list was the Annual Lecture and Dinner to celebrate the22nd anniversary of the society. The annual lecture was deliveredby Mr Lindsay Holland, an eminent architect from Australia andwas attended by over 450 members and guests. A large number ofarchitects attended Mr Lindsay’s lecture on “Soft Steel”. TheLecture examined historically distant and geographically disparateprecedents and how they have informed the creation of severalcompleted steel frame houses within the speaker’s practice, togetherwith more recent speculative projects under conceptualdevelopment.

SSSS ScholarshipOne scholarship has been awarded to Mr Chong Chon Hiong whois pursuing Civil Engineering at the NUS. In addition, the Societyhas set aside one scholarship for the Civil & Structural EngineeringCourse at the Singapore Polytechnic for its June 2007 intake.

Structural Fire EngineeringA morning workshop was jointly organised by SSSS, BCA andNTU on 2nd August 2006. 250 engineers attended the workshop.Speakers were Dr Ian Burgess, visiting NTU Professor, Dr PhilipTan Kang Hai, NTU and Dr Mohamed Salahuddin, IHPC,A*STAR

Connection Design according to Eurocode 3A one day workshop was organised on 24th August 2006 at HotelPhoenix, Singapore. Dr Frantisek Wald, visiting NTU Professorconducted the workshop.

Eurocodes 3 & 4SSSS spearheaded a national working group committee (WGC)comprising representatives from SSSS council, the variousgovernment agencies, engineering consultants, steel suppliers,NUS and NTU to develop a National Annex for the Eurocodes tobe implemented in Singapore.

International Symposium on Worldwide Trend andDevelopment in Codefied of Steel StructuresThe conference was jointly organised by BCA, NTU and SSSSand sponsored by Corus International Asia and Continental SteelPte Ltd from 2nd to 3rd October 2006.

Fire Engineering Design of Steel and Composite StructuresA two day workshop was held at CITI on 6th & 7th February 2007.The workshop was conducted by Professor Ian Burgess and Assoc

Prof Philip Tan Kang Hai.The two day workshop was attended by 50 engineers andconsultants. It provided an overview of the fire hazards in buildingsand the measures necessary for fire safety and containment oflosses.

Structural Steel Supervisor CourseThe course offers a continuing education and training programmefor engineers and technicians who are involved in planning,executing or supervising the fabrication and erection of specialiststructural steelworks to qualify as certif ied structural steelsupervisors (StS). The course is specially tailored for technicalpersonnel working in the steel fabrication yards and on constructionsites. The 4th run was recently conducted.

Site VisitsNovena Medical Centre at Sinaran DriveMembers attended this site visit on 18th April 2006.Construction of FusionopolisMembers attended this site visit on 6th October 2006.Main Contractor – ShimizuSteelworks Sub contractor: Yongnam Engineering & ConstructionPte Ltd

Certification Scheme for Steel FabricatorsA total of 46 steel fabricators have been accredited under the jointscheme of SSSS and BCA as at 1st February 2007.

New Members22 new individual members and 20 corporate members have beenadmitted to the Society during this session. The following tableshows the total number of members admitted by the Society overthe years. The Society is continuing with its effort to attract a largermembership from the industry.

Living SteelSSSS became a member of Living Steel in 2006. Living Steel isa worldwide programme which was launched in 2005 to stimulateinnovation in the design and construction of housing.

Contribution to National StandardisationMembers of the Society continue to contribute as volunteers inrelevant PSB standardization Centre’s technical committees andworking groups.

Contribution to “Committee Works” under BCA and FSBMembers of the Society continue to contribute as volunteers inrelevant BCA, FS, IES, and SPRING SINGAPORE committeesand working groups.Following President’s report the Hon Treasurer Mr Chia Wah Kampresented the Treasurer’s report. The Society also had a splendidfinancial performance with surplus for scholarships and otheractivities.

Finally the election of office bearers was held and the new Councilelected. The names of elected members are on page 2.

Exhibition and Seminar on Sustainable Construction

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The Building and Construction Authority lined up a series ofactivities to promote Sustainable Construction in Singapore. Tostart with BCA has organised an exhibition cum seminar onSustainable Construction on 23 April 2007 at the URA Gallery.The exhibition was opened by Ms Grace Fu, Minister of State forNational Development. The exhibition highlighted manySustainable Construction projects from both local and overseas.The exhibition was open to the public from 23 April to 11 May2007.

On the same day, immediately after the opening ceremony aseminar on Sustainable Construction by two eminent professorswas held at the URA Function Hall. The first speaker at the seminarwas Prof Roger Plank, Head of School in Architectural Structuresat the University of Sheffield, UK. He spoke at length on a widerange of issues covering Environmental, Economic and Socialaspects and their relationship with local circumstances. Buildingscan have a significant impact which can make a very positivecontribution to sustainable development if the planning, design,

Associate Prof. Richard Liew, Immediate Past President of Singapore Structural Steel Society, was interviewed byMedia Corp. on issues relating to Sustainable Steel Construction. The followings are his replies to the questions:

construction and operation are all done properly. For theconstruction industry, the most important considerations relate tothe use of materials and energy efficiency. Prof. Plank discussedhow steel construction in particular can be used to help achievesustainable development through a series of case studies.

The second speaker was Associate Prof Richard Liew from theNational University of Singapore. He is currently the Director ofHazard, Risk and Mitigation programme of the University. In hispresentation, he discussed the design challenges, recentinnovations, buildability and sustainability issues related to steelbuildings and large span roof structures. He emphasised theadvantages of steel-concrete composite system for multi-storeyconstruction. The combined use of concrete cores, steel framesand composite floors to form an integrated system is recommendedfor buildability and robustness. Prof Richard Liew concludes thatsteel is the preferred choice for lightweight, long span and fasttrack construction.

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1. While using sustainable steel construction method to replaceconventional concrete-based method, there are changes in thetechnical aspects, including design, structure, process &construction? Could you elaborate on that?

I think the general rule should be to adopt the principles of gooddesign and construction methods, thinking in a holistic way rather

than ‘optimising’ individual aspects. The important issues forsustainability (as determined by local conditions) should beconsciously considered at all stages.Steel is a sustainable material as it is produced efficiently and canbe recycled and re-used at the end of its life. It also preserves theattributes as shown in Table 1:

Society President Mr Tan Tian Chongpresenting a token of appreciation to

Professor Roger Plank

Society President Mr Tan Tian Chongpresenting a token of appreciation to

Professor Richard Liew

Minister of State forNational Development Ms Grace Fu

delivering her opening address

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2. What are the pros and cons of sustainable construction?

I do not think there are necessarily any cons. But in some instancescapital costs may be higher. For example a higher specification isrequired to achieve a more enduring solution, such as theincorporation of energy producing components such as solar panelsand photovoltaics, but this is by no means always the case.

The pros are numerous. They include:1) Commercial benefits such as long term cost reductions in

operating the building and an improved public perception ofthe owners, designers, constructors etc.

2) Legal aspect in which there is growing legislation in manycountries to encourage or require good practice, and to penalisepoor or thoughtless construction method,

3) Environmental impact, which of course is to the benefit ofthe whole human race rather than those directly associatedwith a particular building, but one can only realistically achievesustainability if everyone contributes.

4) Minimising material used, waste and disturbance duringconstruction; maximising the use of waste and recycledmaterials.

3. Is sustainable steel construction a better substitute to use ofconcrete? To what extent the use of concrete can be reduced?

In reality I think it is far more important that a building is welldesigned and constructed according to the principles of sustainableconstruction rather than the specific materials used.Steel framed construction could certainly replace the RC frame,but the floor slabs and foundations are more difficult. However,even for these there are steel based alternatives, so in principle itwould be possible to replace all concrete construction with steel.

There is a significant development in composite constructiontechnology in which steel and concrete can be combined to achieveoptimum performance. For example, composite beam in whichsteel beam acts compositely with part of the concrete slab providesexcellent flexural resistance for long span application - steel ispredominantly in tension and concrete slab in compression underflexural action. Steel tube infilled with high strength concretecan reduce the overall dimension of column which is suitable forhigh-rise construction.

Table 1 Attributes of steel in sustainable construction

Attribute Comment on steel constructionEfficiency Steel construction is pre-fabricated in efficient factory processes with minimum use of resourceSpeed Steel construction is installed rapidly on site which reduces local disruption . Project can be completed faster

with earlier return of investmentMinimum waste Steel construction is not wasteful in production, and all waste can be recycledQuality Steel is a high quality, dimensionally accurate material. Long term behaviour and quality can be guaranteed

if proper specifications are followedTransport Steel is lighter and to be delivered to site ‘just in time’ for installationLife Steel has a long design life and does not deteriorate if properly protectedHealth and aesthetic Steel construction is a safe process and leads to high quality architectureRecycling All steel can be recycled, and on 45% of current steel use is from a recycled sourceRe-use Steel components can be dismantled and re-used

Conventional brick or hollow block walls and parapet walls canbe replaced by a dry wall system would further reduce the overallweight of a steel building. A multistorey steel building, which istypically 30% to 50% lighter than an equivalent concrete building,can be constructed faster and can lead to significant saving of thefoundation work.

4. How popularly is sustainable construction used in Singaporeor any other countries you know of? Is sustainable constructionsuitable for housing environment? How practical is it in the longrun in term of durability, maintenance, energy usage etc?

After a period of about 10 years since it first became a majorconcern, sustainability is now becoming very popular, and manydevelopers and building owners, including governmentorganisations, are recognising the need to adopt the principles ofsustainability. This is partly as a result of increased publicawareness of the issue and the need for building owners todemonstrate responsible behaviour and partly as a result oflegislation from government organisation.

I think the UK and Japan are probably ahead of the game comparedwith most countries - the US and Australia are beginning to take iton, and the European Union is developing some wide ranginglegislation, but practice in different EU member states is muchmore variable. The Building Construction Authority of Singaporeand Singapore Structural Steel Society have been promoting andencouraged the use of sustainable steel construction in which steelis the natural substitute for concrete in view of the recent problemassociated with the supply of sand and aggregates.

Housing is extremely important and the same principles can beapplied. Case studies have shown that it is very practical - as Isaid above designing for sustainability is totally consistent withgood design, and the same principles apply to residentialconstruction.

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SSSS Steel Design Awards 2007

The Steel Design Awards 2007 are now open for submission of entries.The Singapore Structural Steel Society invites eligible applicants tosubmit their projects. Since 2002, the Steel Awards have recognisedsteel structural engineering excellence, and rewarded the work of themost talented structural designers/architects and steel fabricators fortheir indispensable contribution to the built environment.

Why should you enter?Submission of entries to the SSSS Steel Design Awards allows one tohave the opportunity to be associated with the continuing growth andsuccess of this premier celebration of achievement and innovation insteel structural engineering. The SSSS Steel Design Awards is afantastic opportunity to raise the profile of your organisation withinthe industry and the general public. It also acknowledges the effortscontributed by your project team.

What type of projects is suitable?The SSSS Steel Awards welcome entries from structural engineers/architects/owners or steel fabricators. It is open to both large and small-scaled projects. Judging is based on merit and not on scale. Theintended project for entry should have been completed or be due forcompletion between June 2004 and 30 April 2007. The SSSS SteelDesign Awards’ categories are designed to reflect the breadth ofprojects for which our designers or steel fabricators are responsiblefor in Singapore.

The judging criteriaSubmissions will be judged on whether the steel design of the projectdisplays the following attributes:• Creativity • Value • Innovation • ExcellenceJudges are looking for clearly presented materials that conciselyinforms them of the project and work of the designers and steelfabricators and why the entrant is worthy of an award.

CategoriesThe SSSS Steel Design Awards categories below reflect the breadthof projects for which structural engineers and steel fabricators areresponsible.

SSSS Steel Design Award for Community or Residential StructuresFor achievement in the structural design of community or residentialstructures. Examples include community centres, village halls, busstations/shelters, places of worship, libraries, police stations,residential homes, housing, hostels or smaller-scale projects.

SSSS Steel Design Award for Sports, Bridges and HealthcareStructuresFor achievement in the structural design of sport structures, bridgesor healthcare structures.

SSSS Steel Design Award for Institutional StructuresFor achievement in the structural design of institutional structures.Examples include schools, polytechnics, university campuses or publicmonumental buildings.

SSSS Steel Design Award for Industrial StructuresFor achievement in the structural design of industrial structures.Examples include factories and warehouses, petrochemical works,water treatment works or power stations.

SSSS Steel Design Award for Commercial or Other StructuresFor achievement in the structural design of commercial or otherstructures. Examples include office buildings, shopping centres orstructures not mentioned above.

How to enterEntries should be in Microsoft Word format and submitted via emailor CD/DVD. All entries must include the following:• Cover letter confirming approval from the project owner for the

submission; and that, although the copyright remains with theauthors, the Singapore Structural Steel Society has the right toretain work for exhibition purposes and to reproduce it forpublication, including digitally or via the internet. If the copyrightof any image(s) belongs to another party, this must be clearlystated;

• Official SSSS Steel Design Awards 2007 entry form. Entry formsmust be fully completed and all terms and conditions of entrystrictly adhered to;

• Key descriptive text of the structural engineering processesinvolved in the project – maximum of two-A4 pages;

• Photographs and drawings (no more than two images per page).Please note that images embedded in the Microsoft Word file maybe low-resolution. However, it is essential that all images besupplied separately as individual high-resolution CMYK “.jpeg”,“.eps” or “.tif ” files (minimum 600dpi at A4 size) – maximum offive images;

• Other supporting materials (such as press cuttings, CAD designs,site layouts, etc) – maximum of three-A4 pages.

Terms and conditions of entryThe following terms and conditions must be observed for yoursubmission to be eligible for the SSSS Steel Design Awards 2007:• The work entered in any category should have been completed or

due for completion between June 2004 and 30 April 2007;• Only entries submitted by structural engineers/architects/owners

or steel fabricators will be eligible;• Only entries submitted in designated formats will be eligible;• All entries must be submitted with the fully completed SSSS Steel

Design Awards 2007 entry form;• Please note that information submitted in your entry form may be

used for SSSS Steel Design Awards 2007 audio-visualpresentations, certificates and plaques;

• Judges reserve the right to re-assign projects to different categorieswhere it is deemed appropriate. Project representatives will benotified in this instance.

• Judges reserve the rights not to award all or any of the categoriesof the Steel Design Awards 2007.

Deadlines for submissionsDeadline for submissions is 22 June 2007, Friday.All submissions will be acknowledged upon receipt.Entries on CD/DVD should be sent to:

SSSS Secretariat1-B Aliwal Street, Chenn Leonn BuildingSingapore 199894Telephone No: 6735 6255Fax No: 6392 5330Email: avconsul@pacific.net.sg

WINNERS OF THE SSSSSTEEL DESIGN AWARDS 2004The President’s Awards for Creative andInnovation Steel Design CommendationsKong Meng San Phor Kark See MonasterySubmitted by:1) TTJ Design and Engineering Pte Ltd2) Kong Meng San Phor Kark See Monastery3) Lee Coo Consultants Associates4) Singapore Piling & Civil Engineering Pte LtdJudges’ Comments:The 20th Anniversary Steel Design President’s Award was presentedon the novel use of steel in the construction of the Kong Meng SanPhor Kark See Monastery Temple roof structure.The creative use of structural steel has been successfully applied toform such unusual geometry. The structure is huge with very highpitch and large overhang at corners.The erection is well executed in a very demanding and congestedsite. The winning entry is submitted by TTJ Design & EngineeringPte Ltd.

Commendations - Merit Award• The Esplanade – Upper Level & Roof StructuresSubmitted by:1) T.Y. Lin International Pte Ltd2) The Esplanade Co Ltd3) DP Architects Pte Ltd4) Penta-Ocean Construction Co Ltd5) Boon Chang Structure Pte Ltd6) CPG Consultants Pte LtdJudges’ Comments:There is one durian each onthe Concert Hall and LyricTheatre. Each durian comesin two parts, let me call themside part and top part. Theside part is structural andbears on two levels, theexposed lower concretegutter at low level, and thehidden upper concrete gutterat high level. The top part is non-structural and bears on an RC slab.This RC slab, in double curvature, bears on decking on light trusswork.The trusswork is supported by 40 m span heavy trusswork across thewidth of the quiet performance space of each hall. TY Lin's scope ofwork included the RC slab, deck, light trusswork and heavy trusswork.To accommodate heavy loading within structural depth constraint,the heavy trusswork along one grid was ingeniously developed as apair of trusses with post-tensioned bottom chords. Light trussworkbearing locations were provided with innovative rubber pad acousticisolation detail.The Glass-Aluminium roof is unique. Durian shell is double curvaturedto capture the unique shape. Ball joints must be pre-engineered.

• Singapore Sports School – Swimming Pool/Sports Hall Roof

Submitted by:1) Albert L P Loh

Consultants2) Sports and Youth Division,

Ministry of CommunityDevelopment & Sports

3) ECP ArchitectsInternational

4) Guan Ho ConstructionCo. Pte Ltd

5) Hong Giap EngineeringPte Ltd

Judges’ Comments:The panel of judges is particularly impressed with the Singapore SportsSchool Roof designed and submitted by Albert LP Loh Consultants.The roof structure is very simple, elegant and express the effectiveuse of steel to form the curvature and span for the roof covering overthe swimming pool and sports hall.The judges encourage the use of such innovative structural designconcept to transform future roof structures into architectural andstructural marvel.

• New National Library BuildingSubmitted by:1) Meinhardt (Singapore) Pte Ltd2) National Library Board3) DP Architects Pte Ltd4) Nishimatsu-Lum Chang JV5) JFE-Yong Nam JV6) Maunsell ConsultantsJudges’ Comments:Unique part of this building is its plategirders and transfer trusses.

• Shell Refinery Extension – Seraya 2 JurongSubmitted by:1) William Hare SEA Pte Ltd2) Seraya Chemicals Singapore Pte Ltd3) ABB-Lummus-Structural Dept.4) ABB-JGC Joint Venture5) TTJ Design & Engineering Pte Ltd6) William Hare Ltd, UKJudges’ Comments:The challenge is the tonnage,9000 tons of steel used tosupport the pipes and otherstructures. It means 1000 tonspe r mon th , a s such t heconstruction schedule is verytight. To construct this, theplanning and constructionschedule must have been veryprofessionally done because oflocation of the complex and its mass.

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Site Visit to the Singapore Flyer

The 160m tall Singapore Flyer is the world’s tallest Ferris wheel.It is located on the mouth of Kallang river on the east coast ofSingapore and offers a breathtaking view of the sea, Singapore,Malaysia and Indonesia. Passengers can see up to 40 km on aclear day. Even before the construction of the wheel is completed,it has already become an icon of Singapore. About 50 members ofthe Singapore Structural Steel Society visited the Singapore Flyeron Saturday, 12th May 2007.

The Singapore Flyer is 150m in diameter and the highest capsulecan reach up to 160m above ground level. There are 28 numbersof cabins and each cabin can accommodate 28 passengers. Theduration of one rotation is about 35 minutes. The weight of thesteelwork is approximately 1600 tons and structural cables weighapproximately 500 tons.

The Singapore Flyer Giant Observation Wheel has two supportcolumns and their height is about 85m. These columns supportthe hub and spindle. From the top of columns, support cables arearranged in four directions. The wheel is supported by spoke cablesattached from the rim to the hub and spindle. The support cablesand the spokes are tensioned to provide stability. This concept issimilar to that of a bicycle wheel.

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Each support column is 2.85m in diameter, and is made of circularhollow section with plate thickness of 40mm. The support cableis 100mm diameter locked coil cable and 6 numbers of cables arearranged in each direction. With regards to the rim, the main chordis 864mm circular hollow section. The cross member is 711mmCHS and diagonal is 323mm CHS. The spoke cable is 75mmdiameter locked coil cables.

The contract for detail design and construction was awarded toMitsubishi in September 2005. From then, structural design andM&E design started. From the beginning of last year, manufactureof the prototype cabin was started. The construction work for thewheel commenced in May 2006 and now the rim erection iscompleted. Singapore Flyer is scheduled to be handed over to theowner in February 2008.

Due to the size and structural concept of the Singapore Flyer, it isextremely challenging in terms of both design and construction.For instance, wind tunnel test was conducted in Mitsubishi’s R&Dcentre in Japan.

Wind Tunnel TestDrag coefficient Wind Tunnel Test (model scale : 1 / 7.85)

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Site Visit to Tanglin Trust School

The Singapore Structural Steel Society visitedthe Tanglin Trust School construction site onthe 3rd of February 2007. Mr John Sanderson,one of the Trustees of the School and a Councilmember of the SSSS arranged the site visit.Among the highlights of the visit was theerection of 10 nos 40 m long girders eachweighing 35 tons. Corus ComFlor 210 mmdeep metal floor decking was used in theconstruction.

New MembersM/No Name Organisation AdmittedOrdinary Members

OM 736 Tommy Chua Continental Steel Pte Ltd 8th Mar 2007OM 737 Melvin Soh Continental Steel Pte Ltd 8th Mar 2007OM 738 Woon Hin Juan ARUP Singapore Pte Ltd 8th Mar 2007OM 739 Zhang Hongwen Parsons Brinckerhoff Pte Ltd 12th April 2007OM 740 Soon Yiyi Parsons Brinckerhoff Pte Ltd 12th April 2007OM 741 Joel Lim Parsons Brinckerhoff Pte Ltd 12th April 2007OM 742 Nathan Lee Parsons Brinckerhoff Pte Ltd 12th April 2007OM 743 Ivan Tan LSW Consulting Engineers 12th April 2007OM 744 Zhang Xu LSW Consulting Engineers 12th April 2007OM 745 Lee Kwek Chong KC Lee Associates 12th April 2007OM 746 Su Yu Hai Macrobuild Consultants 12th April 2007OM 747 Kee Ching Guan Tiong Seng Contractors Pte Ltd 12th April 2007OM 748 Liaquat Ally Akhand Yongnam Engineering & Construction Pte Ltd 8th May 2007OM 749 Yong Fen Leong TY Lin International Pte Ltd 8th May 2007OM 750 Lim Kuan Pow TY Lin International Pte Ltd 8th May 2007OM 751 Kenneth Ee Grace Construction Products 8th May 2007OM 752 Ong Meng Wan Meindhart Infrastructure Pte Ltd 8th May 2007

Corporate Members

CM 92 Zecon Engineering Works Pte Ltd 8th Feb 2007CM 93 Hock Yong Heng General Contractor Pte Ltd 12th April 2007CM 94 Chip Eng Seng Contractors (1988) Pte Ltd 8th May 2007CM 95 KKB Engineering Berhad 8th May 2007CM 96 Hwee Metal Works Pte Ltd 13th June 2007CM 97 Eng Meng Metal Construction Pte Ltd 13th June 2007

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Accredited Structural Steel Fabricators

Company Name Class

ARJ Construction Pte Ltd S4Asiabuild Metal Technology Pte Ltd S4Bluescope Lysaght (Singapore) Pte Ltd S1Boon Chang Structure Pte Ltd S2Chin Ee Engineering Works Pte Ltd S4China 22nd Metallurgical Construction Corporation (Singapore Branch) S1Eng Hoe Engineering Works S3Eng Lee Engineering Pte Ltd S2Fa Yew Construction Pte Ltd S3G-Tech Metal Pte Ltd S3Hoe Hoe Engineering Pte Ltd S3Hong Giap Engineering Pte Ltd S2Hup Kway Engineering Works S4Hup Lian Engineering Pte Ltd S2Hup Soon Metal Works S4Inbuilt Engineering Pte Ltd S2Kaszon Pte Ltd S3Kian Hiap Construction Pte Ltd S3Kim Seng Heng Engineering Construction Pte Ltd S3Kong Hwee Iron Works & Construction Pte Ltd S2Koon Hui Engineering Works Pte Ltd S3Lai Yew Seng Pte Ltd S3Lee Yuen Engineering Pte Ltd S3Leong Siew Weng Engineering Pte Ltd S2Lian Gay Construction Pte Ltd S4Sam Leck Metal Works Pte Ltd S3Sin Hong Seng Engineering Pte Ltd S3Sin Mah Construction & Engineering Pte Ltd S3Stelatex (Holding) Pte Ltd S3Sterling Engineering Pte Ltd S3THI Engineering & Construction Pte Ltd S4Ting Shean Engineering Pte Ltd S3Tong Sheng Engineering Pte Ltd S4Tristar Engineering Pte Ltd S3TTJ Design & Engineering Pte Ltd S1Unesis Engineering Services & Construction S4Victor Buyck Steel Construction Sdn Bhd S1William Hare Limited S1Wing Tuck Engineering Pte Ltd S3WY Steel Construction Pte Ltd S2YNE Project Engineering Pte Ltd S2Yongnam Engineering & Construction Pte Ltd S1Yu Gyo Engineering & Trading Pte Ltd S3Zamil Steel Buildings Vietnam Co Ltd S1

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SSSS - BCA Scholarship Fund Raising Golf Tournament &SSSS - Continental Steel Challenge Trophy

SSSS - BCA ScholershipF u n d R a i s i n g G o l fTournament 2007 & SSSS -Continental Steel ChallengeTrophy 2007 was held onThursday, 14 June 2007 at theRaffles Country Club. Thetournament was organised bySingapore Structural SteelSociety to raise funds for theSSSS-BCA Scholarships aswell as to promote interactionamong members of theconstruction industry. Thisyear SSSS is offering twoS c h o l a r s h i p s e a c h f o runiversity and polytechnicstudents.

This event was very wellreceived and all 144 places were taken up. Among the golferspresent were Ms Lee Bee Wah, nominated MP, Mr Ong See Ho,Director of Building Engineering Division, BCA, Dr Teo Ho Pinand Dr John Keung.

A buffet lunch was served before the commencement of the golftournament. Mr Tan Tian Chong, President of the SingaporeStructural Steel Society opened the tournament at 1.15 pm. Weatherwas excellent throughout the whole event and everyone out on thecourse had an enjoyable round of golf .

A sumptuous dinner was served at the Banquet Hall of the RafflesCoun t r y C lub in theevening during the prizepresentation ceremony.There were lots of prizes forthe winners of the golftournament as well as luckydraws. However there wasno winner for the hole-in-one prize, a Mercedes BenzC180 car sponsored byDaimler & Chrysler.

The Singapore StructuralSteel Society wishes to takethis opportunity to thank toall sponsors and supportersf o r t h e i r g e n e r o u scontributions to make thisevent successful.

Dr Teo Ho Pin, Mr Tan Tian Chong, Ms Lee Bee Wah andDr John Keung

Dr Teo Ho Pin

Ms Lee Bee Wah

Professor Lee Seng Lip after around of Golf

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Mr Teo Kong Png receiving the Golf Championship Trophy

Dinner after the tournament and prize presentation

Guest of Honour Ms Lee Bee Wah

Ms Serena Yap and Mr Jack Tan receiving thelucky draw 1st prize

Mr Chor How Choon and Mr Tommy Chua receivinga lucky draw prize

Mr Chor How Choon receiving the SSSS-Continental SteelChallenge Trophy from President Mr Tan Tian Chong

Upcoming Society EventsThe 23rd Annual Lecture and Dinner of the SingaporeStructural Steel Society will be held on Thursday, 23rd August2007 at 6.30pm at the Belvedere and Mandarin Court, MeritusMandarin Hotel, 333 Orchard Road, Singapore. This year the

Annual Lecture will be delivered by Professor Frans Bijlaard,Professor of Steel Structures, Delft University of Technology,The Netherlands.

SSSS-BCA Scholarships

TTJ Design and Engineering Pte Ltd has from its humble

beginnings as Teo Contractor in 1975 transformed into a leading

structural steel specialist around the region. TTJ is able to undertake

design, engineering, fabrication and installation of structural

steelworks. TTJ’s greatest strength is in its innovative approach

in handling heavy structures and complex construction.

It has over the years completed many outstanding projects in

various industrial, commercial and governmental sectors in

Singapore, Middle East, Sri Lanka, Papua New Guinea and so on,

earning itself numerous accolades in quality, safety, design and

performance from clients and the authorities. The notable latest

overseas projects include Shiplift & Transfer System in Dubai,

Spire & Wind Turbine Bridges for the World Trade Centre in

Bahrain and Japan Ambassador Residence in Sri Lanka. TTJ is

also involved in the Marine, Oil & Gas industry, executing small

modular structures in TTJ’s factory.

Fabricate &

Assembly of Shale

Shaker House,

Singapore

TTJ

TTJ DESIGN & ENGINEERING PTE LTD

Republic Polytechnic Sports Complex, Singapore

New Products & ServicesTTJ is committed to providing quality products and services that

meet it’s clients’ requirements. It obtained certification for the

Integrated Management System ISO 9001:2000, ISO 14001:1996

and OHSAS 18001:1999 in the design, fabrication and erection

of structural steelworks. The certification of the Integrated

Management System demonstrates TTJ’s long term commitment

in providing quality services to her customers at all times,

environmental awareness and greater concern for health and safety.

In addition, it is an important milestone in TTJ’s pursuit of business

excellence.

TTJ has been an accredited structural steel fabricator for Category

S1 by the Singapore Structural Steel Society. TTJ has been

qualified by Singapore Accreditation Council (Accredited

Inspection Body) to be an approved Type ‘C’ Structural Steel

Inspection Body.

With its in-house design and engineering capabilities, modern

factories with advanced machinery in both Singapore and

Malaysia, TTJ is well positioned to undertake big-scale design

and build projects and projects of complicated nature with

structural steelwork both locally and abroad.

14

Four BCA-SSSS Scholarships are offered each year to eligiblebright students. Two scholarships will be given for study at localUniversities and the other two for study at one of the localPolytechnics. The Scholarships are offered in order to encouragestudents to study Civil and Structural Engineering. In awardingthe scholarships, preference will be given to children of SSSSmembers. In the case of Corporate members, children of employeesare also eligible for preferential treatment.

Both scholarships will pay for tuition fees for three years of studyin the tertiary institutions provided the student continues to achievegood grades in the examinations as well as maintain good conduct.The scholarship awarded to University student is worth $27000and that awarded to Poly student is worth $6000. The scholarshipsare administered by a joint committee of SSSS and BCA. Membersare requested to encourage their children to apply for thescholarships.

In the year 2006, Mr Chong Chon Hiong was awarded the firstever SSSS scholarship to study Civil Engineering at the National

University of Singapore. Mr Chong was selected as the firstrecipient of the SSSS scholarship from a large number of applicantsthrough interview by a panel of interviewers made up of SSSSmembers and BCA staff. Prior to joining the NUS, Mr Chonggraduated with Certif icate of Merit in Civil and StructuralEngineering from Singapore Polytechnic.

In 2007 two scholarships were awarded to first year Diploma inCivil and Structural Engineering students from SingaporePolytechnic. The scholarship recipients are Mr Ng Say Kok andMr Ng Wei Ming Calvin. They were selected through interviewby a panel comprising of SSSS member and academic staff fromthe School of the Built Environment, Singapore Polytechnic.

For more information, please call Dr Ang Kok Keng (SSSS) at6516-2570 or Mr Esmond Chee (BCA) at 6325-5002email : esmond_chee@bca.gov.sg .

To download application forms please visit: www.ssss.org.sg

8th Pacific Structural Steel Conference

The 8th PSSC held at Wairakei, New Zealand from March 13 toMarch 16 comprising of three days of technical session and oneday of social programme was a great success. More than 200delegates from 16 countries attended the conference. The SingaporeStructural Steel Society was represented by its Immediate PastPresident Dr Richard Liew, 2nd Vice President Mr Bernard Chung,and Treasurer Mr Anthony Tan. They were able to make manynew friends among the engineering fraternity dedicated to steel.Among others three outstanding experts in the field of steelstructures attended the conference and presented key note speeches.They are David Nethercot, Charles Roede and Hitoshi Kuwamura.130 technical papers on steel bridges and buildings were presentedand in many of the papers the use of finite element technology inthe design and research was highlighted.

Other impor tant fea turesobserved in the papers presentedwere:

· Use of concrete f i l ledtubular columns in framestructures in order to resistseismic forces.

· D e s i g n g u i d e s f o rconnections subjected toseismic forces.

· Guidelines to avoid fracturesin steel structures due toearthquakes.

· Case histories of bridges inpacific rim countries.

· R e c o m m e n d a t i o n s t ocontrol deformation inbridges during constructionas well as during its servicelife.

Copies of the proceedings are now available for sale at $115 pertwo volume set from HERA. Website: www.hera.org.nz

Coming conferences on Structural Steel are:

9th International Conference on Steel Space & CompositeStructures to be held on10th - 12th October 2007, Yangtai, China14th - 15th October 2007, Beijing, China

5th International Conference on Thin Walled Structures to beheld in Surfers Paradise, Gold Coast, Australia, from 18th – 20thJune 2008.

12th International Symposium on Tubular Structures to beheld at Shanghai, China, from 8th - 10th October 2008.

7th International Conference on Steel Bridges to be held inGuimaraes, Portugal, from 4th – 6th June 2008.

Maori warriors welcomed the international delegates to thePSSC opening ceremony

Anthony Tan, Bernard Chungand Wolfgang Scholz at theconference banquet dinner

The 3 international experts from left: David Nethercot, CharlesRoeder and Hitoshi Kuwamura

PSSC General Secretary Wolfgang Scholz handing over thePSSC flag to the China PSSC representative for hosting of the

next conference in 2010

· Information on new projects in steel during the last four yearsconstructed or under construction in China, Japan, Korea andSingapore.

15

Airport Roof Truss, Singapore Seraya Chemical Phase 2, SingaporeSSSS Merit Award Winner

Shiplift & Transfer System, Dubai

Aircraft Maintenance Hangar, Singapore Changi Airport Terminal 2, Singapore

World Trade Centre Spire, Bahrain(Erection only)

Supreme Court Building, Singapore

Wind Turbine Bridges, WTC Bahrain(Erection only)

One Raffles Quay, Singapore(Fabrication 6,500 tons)

Kong Meng San Temple, SingaporeSSSS President’s Award

Blast Door, Singapore

No. 57 Pioneer Road, Singapore 628508. Tel: (65) 68622126 Fax: (65) 68620284Email: ttjde@ttj.com.sg Website: www.ttj.com.sg

• Accredited Structural Steel Fabricator for Category S1

• Type ‘C’ Structural Steel Inspection Body - SAC

(Accredited Inspection Body)

YOUR PARTNER IN STEEL

Petrochemical, Oil and Gas ProjectsPharmaceutical PlantWafer Fabrication PlantMicroelectronics PlantWater and Sewage Treatment WorksHigh-rise and Low-rise Buildings

Factories and WarehousesMRT and LRT StructuresMarine StructuresAircraft HangarsVehicle ParapetsFormworksMobile Aerial LiftsDockarms & Shipyard Cranes

Marine Deck Cranes and WinchesConstruction Lifting EquipmentSpecial Purpose MachineryOverhead Cranes and LaunchersCivil Defence Shelters and BlastDoorsBearings and Expansion Joints forHighways

Coke Calcining Plant, Bahrain(Erection only)