STEEL NEWS & NOTES -...

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VOL. 20 NO. 3 JAN 2008 MICA (P) No. 094/05/2007 STEEL NEWS & NOTES Singapore Structural Steel Society on the Internet: www.ssss.org.sg Contents The President’s Corner-------------------------------- pg 2 Upcoming Events -------------------------------------- pg 3 New Members ------------------------------------------ pg 3 Bolted Connection in Steel Structures ------------- pg 4 23rd Annual Lecture & Dinner --------------------- pg 7 SSSS Steel Design Awards ---------------------------- pg 8 Construction Materials Outlook - Part II --------- pg 9 President’s Award for Design of Bishan Community Library ------------------------ pg 13 New Products & Services ----------------------------pg 14

Transcript of STEEL NEWS & NOTES -...

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VOL. 20 NO. 3 JAN 2008 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

Upcoming Events -------------------------------------- pg 3

New Members ------------------------------------------ pg 3

Bolted Connection in Steel Structures ------------- pg 4

23rd Annual Lecture & Dinner --------------------- pg 7

SSSS Steel Design Awards ---------------------------- pg 8

Construction Materials Outlook - Part II --------- pg 9

President’s Award for Design of

Bishan Community Library ------------------------pg 13

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

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The President’s CornerDear fellow-members,

Year 2008 got off to a flying start.The BCA has just announced thatconstruction demand in 2007 isestimated to have increased by 46% to $24.5 billion. The upsurgewas mainly propelled by therecord breaking private sectordemand. Even the previously lowpublic sector construction demand

also increased due to more contracts for housing,educational institutions and civil engineering works. Theoutlook for 2008 is just as bullish. Based on BCA’sdevelopment plan survey in the last quarter of 2007, totalconstruction demand is projected to reach between $23billion and $27 billion in 2008. No wonder, TheEconomist described Singapore as ‘Booming, bustlingand bursting at the seams’.

Members, I am sure are already kept very busy with manyof their projects going full steam right now. Our societyis also feeling the buzz. It is not surprising that our SSSSSteel Fabricators’ Accreditation system has been growingsteadily. We now have over 60 accredited steel fabricators.The response to our Structural Steel Supervisor (StS)Certification Course continues to be strong. To-date, wehave trained nearly 300 qualified steel supervisors. I amalso very delighted that our SSSS corporate membershipis fast reaching the one Hundred Mark - at print time, wehave more than 90 corporate members.

You will no doubt be very pre-occupied in the comingmonths, but please do not forget to take time off to attendsome of the SSSS activities lined up for you. We willmeet up with corporate members during the Chinese NewYear festive season. Our AGM is scheduled on 27 March2008. The Annual Golf Tournament will be held on 22May 2008 at the Sentosa Golf Club where we willcontinue to raise funds for the SSSS scholarships forstudents at the universities and polytechnics - so far, wehave given out three scholarships to universityundergraduates and two to poly diploma students. Don’tmiss this event. The Hole-In-One prize is a Mercedes-Benz E200 Kompressor. Our Annual Lecture and Dinnerwill take place on the auspicious date of 28 August 2008at the Mandrin Meritus, Orchard Road. There will bethe usual series of seminars, talks and site visits.

So, please stay connected with the SSSS as we make ourway through what could be the most bustling andbooming year in a decade.

Warmest Regards,

Tan Tian Chong

Published by :Singapore Structural Steel Society1-B Aliwal Street, Chenn Leonn BuildingTel: 6735 6255 Fax: 6392 [email protected] www.ssss.org.sg

Printer : Motion Printers & Publications Pte LtdBlk 3023 Ubi Road 3 #06-08 Singapore 408663Tel: 6783 3493 Fax: 6846 1636 Email:[email protected]

Council Members 2007/2008PresidentMr Tan Tian Chong, Building & Construction Authority(Tel: 6325 5921 email: [email protected])

Immediate Past PresidentAssoc Prof Richard Liew, National University of Singapore(Tel: 6874 2154 email: [email protected])

First Vice-PresidentMr Ho Wan Boon, Yongnam Engineering & Construction Pte Ltd(Tel: 9637 9971 email: [email protected])

Second Vice-PresidentMr Bernard Chung, Corus South East Asia Pte Ltd(Tel: 6297 6678 email: [email protected])

Honorary SecretaryMr M.S. Islam, Singapore Polytechnic(Tel: 6879 0464 email: [email protected])

Honorary TreasurerMr Anthony Tan, BlueScope Lysaght (Singapore) Pte Ltd(Tel: 6661 1215 email: [email protected])

Honorary AdvisorsMr Lim Keng Kuok, CPG Consultants Pte Ltd(Tel: 6357 4608 email: [email protected])Assoc Prof Richard Liew, National University of Singapore(Tel: 6874 2154 email: [email protected])

Council MembersAssoc Prof Ang Kok Keng,National University of Singapore(Tel: 6874 2570 email: [email protected])Mr Chia Wah Kam, Parsons Brinckerhoff Pte Ltd(Tel: 6290 0628 email: [email protected])Mr Chor How Choon, The 22nd Mettallurgical ConstructionCorporation (S) Pte Ltd(Tel: 9879 1398 email: [email protected])Mr Look Boon Gee, LOOK Architects(Tel: 6323 8183 email: [email protected])Dr Ng Yiaw Heong, Petro Process System Pte Ltd(Tel: 6545 9968 Ext 500 email: [email protected] John Sanderson, William Hare (SEA) Pte Ltd(Tel: 9856 8036 email: [email protected])Ms Serena Yap, TY Lin International Pte Ltd(Tel: 6278 3383 email: [email protected])

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.

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Upcoming Events

24th AGM of the Singapore Structural Steel SocietyThe 24th Annual General Meeting of the Singapore Struc-tural Steel Society will be held on 27 March 2008 at 6.00pm. at the Mercury Room, level 5 of Furama RiverfrontHotel. The AGM will be followed by a buffet dinner at theSquare Restaurent. All members are invited to attend theAGM.

SSSS-BCA ScholarshipsStarting last year the SingaporeStructural Steel Society is award-ing two scholarships each to eligi-ble University and Poly students topersue Civil and Structural Engi-neering course locally. This yearthe scholarships awarded to uni-versity students are worth $40,000.00 each and those for Poly studentsare $ 6000.00 each. These schol-arships will pay for tution fees forthe duration of the course provided the students continue toachieve good grades in the examinations as well as main-tain good conduct. The scholarships are administered by ajoint committee comprising of BCA staff and SSSS Coun-

cil members.Preference will be given to the children of SSSS membersin awarding the scholarships. In the case of Corporatemembers, children of employees will get preference.Members are therefore requested to encourage their chil-dren to apply for the scholarships. Students can apply afterthey are enrolled in the tertiary Institutions to persue coursein Civil and Structural Engineering.

SSSS-BCA Scholarship Fund Raising Golf TournamentThis year the SSSS-BCA scholarship fund raising golf tour-nament will be held on 22 May 2008 at the Tanjong Course,Sentosa Golf Club. We are able to award scholarships toneedy students through the generosity of our members andwell wishers. We hope for your continued support and par-ticipation in the coming golf tournament.

Annual Lecture and DinnerThe 24th Annual lecture and Dinner of the Society will beheld on 28 August 2008 at the Meritus Mandarin Hotel,Orchard Road. The theme of this year’s lecture will beSustainability of Steel in Housing and Residential Buildings.Once again we hope of your continued support and partici-pation in this event.

New MembersAssociate MembersAS-53 David Rowell Foo, Success Construction Pte Ltd 13th September 2007AS-54 Teh Swee Huat, Sysma Construction Pte Ltd 10th January 2008

Ordinary MembersOM 758 Qian Xudong, NUS 13th September 2007OM 759 Ip Swee Hee, Singapore Piling & Civil Engineering Pte Ltd 13th September 2007OM 760 Chin Leong Siong, Alfasi Construction (S) Pte Ltd 13th September 2007OM 761 Yan Jintang, CPG Consultants Pte Ltd 13th September 2007OM 762 Sanjeev Jayasinghe, Able Systems (PVT) Ltd 13th September 2007OM 763 Jegatheesan Kailasapillai, Yongnam Engrg & Constrn (Pte) Ltd 11th October 2007OM 764 Thant Zin Win 11th October 2007OM 765 Woo Kwan Wye, Surbana International Consultants Pte Ltd 7th November 2007OM 766 Soo Chee Sern, CS Consulting Engineers 10th January 2008OM 767 Chee Kwong Lai, Camp Dresser & Mckee Intl Pte Ltd 10th January 2008OM 768 Loke Peng Khuan Sunny 13th December 2008OM 769 Somashekhar Muniyur, Worley Parsons 10th January 2008

Corporate MembersCM 103 Pollisum Engineering Pte Ltd 13th September 2007CM 104 Jian Huang Construction Co Pte Ltd 13th September 2007CM 105 SKYA Construction Pte Ltd 11th October 2007CM 106 Torsco Sdn Bhd 11th October 2007CM 107 Sin Mah Construction & Engineering Pte Ltd 7th November 2007

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Bolted Connection in Steel Structures: Bolt Tightening

By Ng Yiaw-Heong B.Eng.(Hons), MEng, PhD.

1.0 Introduction

Bolt tightening can be categorised into either "Snug-Tightened" or "Fully Tensioned". Sometimes bolts may need to be fullytensioned, while sometimes snug tightening is sufficient. This always brings confusion at construction site and it is necessaryfor design engineer to specify clearly what level of tensioning or snug is required in each bolted connection. In situationswhere the designer did not specify the bolt design philosophy, it is essential to seek clarification so that bolts can be properlytightened at site.

2.0 Design Philosophy

There are 3 fundamental modes of force transfer in bolted connections:i) Shear/Bearing mode where forces are perpendicular to the bolt axis and transfer shear by bearing on the bolt and the

connected plies.ii) Friction Mode where forces are perpendicular to the bolt axis and transfer shear by frictional resistance of the contacting

surface.iii)Axial tension Mode where forces to be transferred are parallel to the bolt axis.

BS 5950-1:2000 Section 6 classified usage of bolts to 2 types, non-preloaded bolts (clause 6.3) and preloaded bolts (clause6.4). There are several reasons to adopt preloading in the bolt and one of the reasons to adopt preloading in the bolt is toprevent occurrence of slip for structure that critical in deflection; eg. cantilever beam. The preloaded bolt is necessary ifFriction Mode is required. The design procedure for preloaded bolts could be found in the code, clause 6.4. The code namedthe preloaded bolts as HSFG bolts.

3.0 Usage of bolt

Standards that described the usage of bolts are as follows:-i) BS 4395 Part 1:1969 - Specification for High Strength Friction Grip Bolts and Associated Nuts and Washers for Structural

Engineering. Metric Series. General Gradeii) BS 4395 Part 2:1969 - Specification for High Strength Friction Grip Bolts and Associated Nuts and Washers for Structural

Engineering. Metric Series. Higher Grade bolts and nuts and general grade washersiii)BS 4604 Part 1:1970 - Specification for the use of High Strength Friction Grip Bolts in Structural Steelwork. Metric

Series. General Gradeiv) BS 4604 Part 2:1970 - Specification for the use of High Strength Friction Grip Bolts in Structural Steelwork. Metric

Series. Higher Grade (Parallel shank)v) BS 3692:2001 ISO metric precision hexagon bolts, screws and nuts - Specificationvi) ISO 898-1:1999 Mechanical properties of fasteners made of carbon steel and alloy steel.

Coding of bolts with Grade 4.6, 8.8, 10.9 and etc. is still not available when both British Codes BS4395 and BS4604published at year 1969 and 1970. However, the BS3692:2001 (version 1967 withdrawn) introduced the specification wherebolt are categorized into Grade 4.6, 8.8, 10.9 and etc.. ISO 898-1:1999 described in detail the mechanical and testing requirementof these bolts.

The design procedure of HSFG bolts in the new BS5950: Part 1:2000 still refers to the BS4395 and BS4604. These codesonly classified the bolt in general grade and higher grade. However, the general grade and higher grade bolts mentioned inthe codes are still able to correlate to the latest BS 3692:2001 by its yield strength. Below are the yield strength comparisonsof both general and higher grade of bolt with Grade 8.8 and 10.9.

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Based on the table, it could be concluded that the Grade 8.8 Bolt in BS3692 is almost equivalent to the General Grade inBS4395. And Grade 10.9 Bolt in BS3692 is equivalent to the Higher Grade in BS4395.

The design parameter, Po minimum preload stated in BS5950: Part 1:2000 is required in designing HSFG bolts. The codecross references this parameter to BS4604, which consist of Part 1 and Part 2. In other words, both general (8.8) and highergrade (10.9) bolts can be used as HSFG. The only difference would be the value of Po, minimum preload, which is tabulatedas per Table 2.

Table 1: Comparison of Yield Strength of Bolt

General GradeM12 - M24

[M27- M36]

Grade 8.8 Higher Grade Grade 10.9

1 Yield Strength 635 N/mm2[558 N/mm2]

640 N/mm2 882 N/mm2 900 N/mm2

2 Tensile Strength 827 N/mm2[725 N/mm2]

800 N/mm2 981 N/mm2 1000 N/mm2

Table 2: Po, minimum preload/proof load in BS 4604, kN

Proof Load based on ISO 898-1:1999 is also tabulated here for reference as per Table 3. It is noticed that the value is about2% to 18% more than the proof load in BS4604. Nevertheless, as the HSFG bolt design in BS5950: Part 1:2000 is referringto BS4604, the proof load in Table 2 shall be followed.

M12 M16 M20 M22 M24 M27 M30 M33 M36

1 BS4604: Part 1General Grade

49 92 144 177 207 234 286 NA 418

2 BS4604: Part 2Higher Grade

NA 122 190 235 275 356 435 540 NA

Extract from Table 2 of BS 4604 Part 1 & 2:1970

Table 3: Po, Proof load in ISO 898-1:1999(coarse pitch), kN

M12 M16 M20 M22 M24 M27 M30 M33 M36

1 ISO 898-1 : 1999Grade 8.8

51 94 147 182 212 275 337 416 490

2 ISO 898-1 : 1999Grade 10.9

70 130 203 252 293 381 466 576 678

Extract from Table 7 of ISO 898-1:1999

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The code only provides the required proof load to be achieved in order to design as HSFG bolt but does not provide the torquevalue. The required torque value for a specified proof load is governed by the finishing of the bolt (e.g. galvanizing, corrosion,lubrication condition and etc.) The coefficient of friction depends on the smoothness of the thread area in the bolts and nuts.High coefficient of friction will require higher torque value in bolt tightening. In this case, the torque energy provided foraxial load in the bolt will overcome the thread friction. Usually bolt manufacturers would have recommended torque value toachieve proof load for HSFG bolt design in Friction Mode. However, it is not necessary to follow the recommended torqueif the bolt is not designed as HSFG.

Snug tightening will be sufficient if the bolts are designed in Shear/Bearing mode. The National Structural SteelworkSpecification of BCSA states that "Bolts may be assembled using power tools or shall be fully tightened by hand usingappropriate spanners in accordance to BS 2583:1955. This may be defined approximately similar to a force of 25 kg (250Newtons) being applied to the end of a podger spanner. Table 4 shows podger spanner as per BS2583:1955.

Table 4: Podger spanner as per BS2583:1955

Meanwhile, snug tightening is defined by Australian code AS1511 as "The tightness obtained by the full effort of a manusing a standard podger spanner". Typical tools could be a 450mm long spanner for M20 bolts and 600mm long for M24bolts. This is also quite similar to what have been described in the British Standard. Although this is not a scientific description,it is a practical and fair approach for achieving the required snug tight.

Besides using hand tool as described, bolts also could be tightened by a more efficient power tool. Some power tools are alsoequipped with preset torque value to achieve uniformity for bolt tightening. Designer could also fix the snug tight torquevalue as a proportion of the proof load torque value. This will give a clearer guideline at construction site for standardization.

4.0 Conclusion

a) Three fundamentals of bolt design are explained. It is essential to know the design philosophy for a connection beforedeciding on the required torque value.

b) Comparison of bolt is presented. It is concluded that the Grade 8.8 Bolt in BS3692 is equivalent to the General Grade inBS4395. And Grade 10.9 Bolt in BS3692 is equivalent to the Higher Grade in BS4395.

c) Bolts need to be tightened with an appropriate proof load if it is designed as HSFG bolt in Friction Mode. Bolt only needto be tightened as snug tight if it is designed as Shear/Bearing Mode.

Disclaimer

The Author has taken all efforts to ensure the accuracy and correctness of this paper, but the Singapore Structural SteelSociety and the Author cannot accept any responsibility for damage, loss or other consequences resulting from the use of thispaper.

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23rd Annual Lecture & Dinner

The 23rd Annual Lecture and Dinner of the Singapore Structural SteelSociety was held on 23 August 2007 at the Meritus mandarin Hotel,Singapore. Professor Frans Bijlaard from the Faculty of Civil Engineering& GeoScience, Delft University of Technology, the Netherlands deliveredthe 23rd annual lecture on “Advances of High Performance Steel inBuilding and Civil Engineering” to a packed audience of more than 400members and distinguished guests.

According to Prof. Bijlaard, with modern steel manufacturing techniquesit is possible to produce High-Performance Steel with very high nominalstrength. As a result of the improvement in the mechanical properties andthe weldability of these Conventional High Strength Steels (CHSS), withstrength up to 690MPa and the availability of improved weldingconsumables and welding process, the number of applications of CHSSis growing. CHSS is especially important in long-span bridges, high risebuildings, cranes etc.

Due to improper design and construction failures have occurred. Thesefailures illustrate the importance of on going research on design andfabrication of steel structures. Therefore, he called upon the steel industryto support research programme in order to exploit the possibilities ofusing CHSS fully. He concluded that design rules supported by sufficienttheoretical and experimental evidence, resulting from research work needto be debated extensively by researchers and practitioners together. Finally,these rules need to be implemented in the appropriate design codes , TheEurocode 3 “Design of Steel Structures” to form a excellent platform forthese rules to be used worldwide.

Members & guests at the Annual Lecture

Prof. Frans Bijlaard delivering the Annual Lecture

VIP guests at the Dinner

First Vice-President Mr Ho Wan Boon delivering hiswelcome address

First Vice-PresidentMr Ho Wan Boon presentingProf. Frans Bijlaard withHon. Fellowship of theSociety

Some members and guestslearning belly dancing

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SSSS Steel Design Awards 2007

A) Building Structures Category

1) Fusionopolis Phase 1 @ one-north

• JURONG Consultants• JTC Corporation• Shimizu Corporation• Yongnam Engineering &

Construction Pte Ltd• Kisho Kurokawa Architects &

Associates

2) Square 2• KTP Consultants Pte Ltd• Far East Organisation• DP Architects• China Construction (South

Pacific) Development Co Pte Ltd• The 22nd Metallurgical

Construction Corporation ofChina (Singapore Branch)

3) The New Supreme Court Building• CPG Consultants Pte Ltd• Supreme Court of Singapore• Foster and Partners• IRE - Sato Kogyo Joint Venture• TTJ Design & Engineering Pte

Ltd

B) Non Building Structures Category

1) Singapore Flyer Giant Observation Wheel

• ECAS-EJ Consultants Pte Ltd• Urban Redevelopment Authority• Look Architects• CKT Thomas Pte Ltd• Yongnam Engineering &

Construction Pte Ltd

2) Jurong West Sports Complex

• Parsons Brinckerhoff Pte Ltd• Singapore Sports Council• ECP Architects International• Sanchoon Builders Pte Ltd• TTJ Design & Engineering Pte

Ltd

3) Alexandra Link Bridge

• Mitsubishi Corporation• Singapore Flyer Pte Ltd• Mitsubishi Heavy Industries Ltd

Since 2002 the Singapore Structural Steel Society has beenawarding this prestigious “SSSS Steel Design Awards” tooutstanding steel structures for excellence in design,fabrication, erection and construction. The structures arejudged for the following attributes:• Creativity • Value • Innovation • Excellence

In all following six entries were received, three in theBuilding Structures category and another three in the non-Building Structures category.

The judges were pleased to note that all six nominationswere of world class standard. Every one of them wasarguably the winner. However, in the end they announcedthe following results:Winner from the Buildings categoryFusionopolis Phase OneWinner from the non-Buildings categoryThe Singapore Flyer

Mr Chen Yek Sen of Jurong Consultants receiving Design Award fromFirst Vice-President Mr Ho Wan Boon

Mr K. Ito of Mitsubishi Corporation receiving Design Award fromFirst Vice-President Mr Ho Wan Boon

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Construction & Property Prospects 2008 SeminarOrchard Hotel, Singapore15 January 2008

B ChungSingapore Structural Steel Society, 1-B Aliwal Street, Singapore [email protected]

Introduction

The cost of structural steel in the building sector, particularly since early 2000, has been increasing. There are numerousfactors that can affect price levels. Within the building and construction sector for industrial, commercial and residentialproperties, the price of steel as a framing material is a concern facing developers’ profitability as well as the local authority’soutlook towards sustainable construction. To understand where steel prices are heading, an appreciation of the underlyingfactors and market conditions would be useful.

Structural Steel

From Wikipedia.org, the term ‘structural steel’ is simply construction , being a formed with a specific or in certainstandards of and strength. ‘Steel’ is an consisting mostly of , with a content of between 0.2 and 1.7 or 2.04% by weight,depending on grade. As the primary focus is on steel as a building material, other cost components such as the design, typesof flooring system (eg composite construction, metal decking), structural fabrication (eg welded orsteelmaterialprofileshapecross sectionchemical compositionalloyironcarbonbolted connections) and erection (eg handling,speed of construction) are not considered although they contribute towards the overall cost of construction.

Similar with consumer goods, economy of scale also applies to the steel supply chain. Some of the typical supply basis to beconsidered in the price equation are:

a) Delivery - Ex-mill/works, ex-warehouse, local stock, delivered to mainland Singapore site on trailers, as well as variousshipping terms, eg FOB, CFR, CIF, DDU, etc.

b) Volume/Quantity/Quality - (ie small/large tonnages, standard mill or cut lengths, piece count, limitation on shippinglength and weight, steel grades and specifications, etc.

c) Lead time - Supplied direct from local/overseas stockists, indent from overseas mills, traded, inland freight, shipmentsailing time, transit, handling, etc.

d) Currency Exchange Rates - The US dollar being commonly used, against other foreign currencies.

General Types of Carbon Steel Building Materials

The basic groups of steel materials for building are:a) Semi Finished Products – Billet, Slabb) Flat Products – Hot Rolled Coil (HRC), Cold Reduced Coil (CRC), Hot Dipped Galvanised (HDG) Coil, Platec) Long Products – Rebar, Wire Rod, Merchant Bar, H BeamPrimary structural steel components for building are plates and H beams (or sections).

Construction Materials Outlook Part II - Structural Steel

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Cost to Steel Producers

Raw materials and their input costs have an impact on the production of steel. With strong economic performance inthe Western and Middle Eastern countries, they are currently the global demand growth drivers. The eventual overallcost of steel making would involve components such as the cost of iron ore, coking coal, coke, freight, scrap andelectricity.

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b) Recent Price Increases Announced

Conclusions

Global crude steel production reached 1,244M mt in 2006. In relation to Singapore, our domestic consumption of steel inbuilding and construction activities is relatively small at around 1.3M mt.

World demand for steel is expect to continue to grow, particular from BRIC countries (ie Brazil, Russia, India and China),themselves representing a 73% of demand growth between 1997 and 2006.

Turning towards the two main structural steel components of plates and sections, their prices (US$/t) would continue toremain firm, at least in the near term.

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With strong demand over the next 2 to 3 years for local construction activities, the general outlook of structural steel pricesfor the next 12 months can expect to:

Q1 2008 Firm upward trend Q2 2008 Continues upward trend, peak mid/end Q2 before tapering off Q3 2008 Steady and holding from H1 spillover demand and flattening out Q4 2008 Relatively flat being the usual seasonal year end trend

Chinese steel mills are known to supply cost competitive structural steels but in lower specifications. The China Ministry ofCommerce has recently revised their export tax rates on various steel products upwards and this has made supplies fromChina less competitive. Further revision of rates is expected and this would further affect the price of steel internationally.

The Steel Index, a Steel Business Briefing venture, recently reported a survey on the steel price outlook expectations for Q12008, showed that 14% of their respondents expect steel prices to decrease, 26% expect steel prices to remain unchanged,while 60% of respondents expect the price of steel to increase.

President’s Award

Council member Mr Look Boon Gee receives the President’s Award for designing the Bishan Community Library.

Jury Citation

As a recent addition to a public housing estate, Bishan Community Library has rapidly grown to become a symbolic centreof the community, and has impacted positively on local life and the streetscape.

With a modest budget and programme, the library appears to be a simple building, but there is a high concentration ofdelightful details, demonstrating the virtuosity and commitment to good design.

A clear solution of projecting glass boxes is deployed on its main façade, and by extending these boxes from outside into theramped internal street, a feeling of continuity is created. When one makes a transition from the entrance to the bookshelves,the promenade evokes a quiet sense of drama, space and volume.

In terms of building orientation and façade treatment, the design also takes environmentalconsiderations into account. The east and west walls are given a more opaque treatment, withservices located and shielded by the west wall.

Attention is consistently given to details such asthe creation of semi-public/private spaces forreading, splayed treatment of the east wallwindows and in the design of graphics andcarpets. Through the clever choice of colours andfurnishings, the design creates a cheerfulenvironment and engages users across all ages,effectively making a particularly distinctivepublic building with a few deceptively simpledevices.

The Jury applauds the design, for fulfilling its promise of being a community building in every way.

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New Products & Services

Yongnam Holdings Limited is a leading Singapore-based multi-disciplinary engineering and construction services provider withmore than 30 years experience. Established in 1971, Yongnamhas grown over the years from a small local service provider inmechanical engineering into today’s leading multi-disciplinaryengineering and construction group of companies in specialiststructural steel engineering. Yongnam Holdings is incorporatedin 1994. It is listed on the Main Board of the Stock Exchange ofSingapore since 1999. The Group is headquartered in Singaporeand has 9 subsidiaries maintaining regional offices in Singapore,Malaysia, Thailand, Hong Kong, Middle East and China.

With more than 30 years ofe x p e r i e n c e i n s t e e lf abr ica t ion , the Groupoperates three core businessdiv is ions in S t r uc tura lSteelwork, Specialist CivilEngineering and MechanicalEngineering. In steelworkf a b r i c a t i o n , Yo n g n a moperates in Tuas a plant of 20,250 sq m covered area on 76,000 sq m of total factorys p a c e , t h e l a r g e s t i nSingapore. Together, the Tuas

facilities, skilled manpower, advanced CNC machines andMalaysian plant support an annual capacity of 45,000 tons.

Yongnam aims is to provide clients in the construction industrywith steel fabrication of the highest quality in the most timely andefficient manner possible. The number one priority is responsive,personalized service regardless of job size or complexity. Thecompany has built an enviable reputation through close client co-operation and consistent delivery of highly-demanding andtechnically challenging quality products on time and within budget.

Second InternationalAirport, Bangkok

Fusionopolis, Singapore

Square 2

Novena Medical Centre

China 22nd

MetallurgicalConstructionCorporation (S)Pte Ltd

The China 22nd Metallurgical Construction Corporation (Singapore

Branch) is mainly devoting to structural steel engineering design,

fabrication and erection. As a specialized company, 22nd MCC

has acquired the Grade One qualification certification in steel

structure construction, and the Second Class in engineering design.

Now, it has 1,730 employees, including 1,300 technical

professionals and 68 designers involved in the specialised

structural steel engineering.

22nd MCC annual capacity is over 100,000 tons in steel structure

fabrication and erection, involved scopes including metallurgy,

construction material, chemical industry, civil engineering, city

public service, commercial, institutional, residential, etc.

In the whole metallurgical construction industry in China, 22nd

MCC is the first company to have been awarded “The integrated

management system certification for Quality, Environment and

Occupational safety and health”.

22nd MCC is located in the Industrial Park of China 22nd MCC,

which is a large modern industrial base, focusing on steel product

fabrication for industrial and civil construction. The total area is

370000m2, 50000m2 modernized workshop equipped advanced

processing machines and

technique. The Industrial Park owns a series of steel structure

production lines, such as heavy

steel, light H steel, box structure, pipe network structure, decking

plate etc, to meet various requirements. Furthermore, it has

introduced into a whole box steel structure production line and

relevant technology from Japan, which is the most advanced in

the world. The automatic production-line adopted for the welding

of box steel girder and steel column units combination is considered

to be the cutting-edge technology at home as well as abroad in the

said industry.

22nd MCC has since expanded into the market of Singapore and

has been accredited with S1 Category Structural Steel Fabricator

under the Structural Steel Accreditation Scheme awarded by

Singapore Structural Steel Society. It has so far completed the

Square 2(Novena Medical Centre) and IKEA Mega Mall at

Tampines and are currently working on Kallang Leisure Park,

Sengkang Sports Complex, Sungei Gedong Camp and Arts School.

It is the company’s policy to continue pursuing new opportunities

in Singapore as well as the regional markets and at the same time,

forming strategic alliances with potential partners to enhance our

competitive edge.

Page 15: STEEL NEWS & NOTES - ssss.org.sgssss.org.sg/~ssssorgs/images/stories/docs/newsletter/imageSNN_Jan...the preloaded bolts as HSFG bolts. 3.0 Usage of bolt ... Specification for High

China 22nd MetallurgicalConstruction Corporation(Singapore Branch)

10 Anson Road #31-05 International Plaza,Singapore 079903Tel : (65) 62251980 / 62252327Fax : (65) 62252892Email : [email protected] : www.22mcc.com.cn/22ygyy.htm

www.22mccjj.com.cn

ISO 9001:2000, ISO 14001:1996, GB/T 28001-2001Accredited Structural Steel Fabricators: Category S1

The Third Phase of Beijing International Trade Building

– 50000 tonnes

IKEA Tampines

Beijing HQ Building of Siemens CCTV

Singapore Novena Medical Centre – 2463 tonnes

Page 16: STEEL NEWS & NOTES - ssss.org.sgssss.org.sg/~ssssorgs/images/stories/docs/newsletter/imageSNN_Jan...the preloaded bolts as HSFG bolts. 3.0 Usage of bolt ... Specification for High