CTBUHJournal_2006-4.pdf

CTBUH Review

ISSUE NO 4: Summer 2006

CHAIRMAN’S INTRODUCTION

THE INTERNATIONAL COMMERCE

CENTRE, HONG KONG:

A DEVELOPER’S PERSPECTIVE

WIND ENGINEERING OF

THE BURJ DUBAI TOWER

HIGH-RISE BUILDINGS

WITH TWISTED FAÇADES

FIRM PROFILE:

SKIDMORE OWINGS & MERRILL

David

Scott,

CTBUH

Chairman

2006-2009

CTBUH NATIONAL LEADER PROFILES

THE INTERNATIONAL CONFERENCE

CENTRE, HONG KONG

( Image: courtesy Kohn Pedersen Fox PC)

United Arab Emirates:

Andy Davids, Hyder Consulting, Dubai, UAE

Andy Davids is a director of the global consulting

engineering practice Hyder Consulting, and serves

on its global professional board. Hyder is

headquartered in London UK, and manages about

3000 staff in 20 offices around the world,

including over 900 in the Persian Gulf.

He is chief engineer of the Hyder high-rise design

Studio now based in Dubai and responsible for

many of Hyder’s high-rise projects around the world, including the

beautiful Emirates Towers in Dubai, which are the tallest buildings in

the Gulf.The Studio currently has seven towers between 60 levels

and 160 levels at various stages of design and construction for clients

in the Gulf and around the globe. Andy is responsible for the

structural design certification of the 160-level Burj Dubai Tower,

currently being built in Dubai.When completed in 2008, it will be the

tallest man-made construction in the world.

He is an Australian engineer by training and passion, but also holds a

PhD in engineering and an Adjunct Chair in architecture at the

University of Sydney, and serves on several international code

committees. He received the RW Chapman medal and Engineering

Excellence Award from the Institution of Engineers for his work, and

was recently cited as amongst the 100 most influential Australian

engineers.

Andy Davids lives in Dubai with his family, and travels the globe for

his projects.

ADavids.hyd@emaar.ae

www.hyderconsulting.com

Netherlands:

Jan Vambersky, Senior Partner, Managing Director, Corsmit

Part-time Professor,Technology University of Delft

Jan Vambersky, born in 1945, obtained his

bachelor's degree in building and structural

engineering at the Academy of Technology in

Prague in 1963. He completed his master's

program at the Technical University (CVUT), also

in Prague, in 1969.

Jan began his career as a structural engineer with

Corsmit in 1972 after experience as a

contractor's site manager, structural engineer at an architects’ office

in Prague, and structural engineer at a large American engineering

office for the petro-chemical industry in Rotterdam. In 1976, he

became deputy director at Corsmit, and has been a director and

partner since 1979.

Since 1988, Jan Vambersky has served as a part-time professor of civil

engineering in the Department of Building Engineering at the

Technology University in Delft. He is also a member of ONRI

(FIDIC), KIVI, the FIB commission on prefabrication, the Dutch

Council on Tall Buildings (board member), the Dutch Concrete

Society, STUFIB (the Dutch Council on Concrete and Precast

Concrete), and the CTBUH, where he is on the steering group.

jv@corsmit.nl

www.corsmit.nl

www.tudelft.nl

CTBUH Review

Summer 2006

In This Issue

Chairman’s introduction

David Scott

The International Commerce Centre, Hong Kong:

a developer's perspective

Dr John WK Luk, Julia MK Lau,Tim MT Mak

Wind engineering of the Burj Dubai tower

Peter A Irwin,William F Baker

High-rise buildings with twisted façades

Dr Karel Vollers

Firm profile:

Skidmore, Owings and Merrill

CTBUH Review

Issue No 4, Summer 2006

Editors: David J Brown, Zak Kostura

Design: Cody Andresen

Published by the Council on Tall Buildings and Urban Habitat,

Illinois Institute of Technology - SR Crown Hall, 3360 South State Street

Chicago, Illinois 60616-3796 USA.

Phone: 1-312/909-0253. Fax: 1-610/419-0014

E-mail: info@ctbuh.org

CTBUH Review

Summer 2006

The Chairman

On 1 February 2006,

David Scott, a

Principal with Arup in

New York, took over

the role of Chairman

of the Council on Tall

Buildings and Urban

Habitat.This article

describes some of his

engineering history,

and his aims and

objectives for the

Council around

the world.

Today, the Council is the most prominent

international organization dedicated to sharing

information and opinions about tall buildings

and the urban infrastructure. Our membership

is unique, insofar as it is holistic; it covers the

whole range of professionals in the modern

construction industry: from developers,

builders, building officials, and project managers

to architects, engineers, and planners.

The great strength of our

organization is that it covers

the whole range of

professionals in the modern

construction industry.

This is the great strength of our organization

and gives us the opportunity to raise standards

and awareness of technical and commercial

issues across the construction industry. One of

the primary functions of the CTBUH is

communication. In today's booming

construction industry, we are building taller,

faster, and more unusually than ever before.

However, there is still a lack of awareness in

the industry on many aspects of tall building

design and construction, such as seismic design,

progressive collapse, fire performance,

designing for wind, sustainability, and research

on new structural systems.The Council plans

to help raise awareness and knowledge on the

key issues we currently deal with, to help us

design and build better buildings for the future.

It is a privilege and an honor to have been

elected as the new Chairman of the Council of

Tall Buildings and Urban Habitat. I have

respected the Council throughout my career

and, like many of us who are passionate about

tall buildings, I have always felt I should

contribute more. It is a pleasure to find myself

immersed in the life of the Council, and the

purpose of this article is to introduce myself

to the members and outline how I propose to

serve and direct the Council during my

tenure as Chairman.

I first came across the Council in 1977, which

was a very significant year for me. I graduated

from Edinburgh University with top honors,

met my wonderful wife, Marion, and joined

Arup. Initially I worked with a team that was

just finishing off the design and construction of

the Hopewell Centre, which at 66 stories and

216m (709ft) would be the second tallest

building in Asia for almost 10 years (Fig 1).

CTBUH Review

Summer 2006

The Chairman

While it is easy to extrapolate from one

number, it is, for me, more difficult to imagine

why this would not happen rather than why it

would. Had we not been commissioned last

year on four projects taller than 500m (1640ft),

then perhaps I would not feel so bold.

Unfortunately, most of these schemes are

now defunct, although some are going ahead

in some form.

1.The Hopewell Centre, Hong Kong.

Perhaps much of the decision to go taller will

depend on the success of the Emaar

Properties' Burj Dubai, designed by SOM,

managed by Turner Construction and being

built by Samsung Construction. Rumored to be

somewhere between 700m and 800m (2297ft -

2625ft), this project is a step change in building

height. Now well under construction, the

success of the Burj will have a significant

influence in how future major projects, both

taller and smaller, are designed.The Council is

very fortunate that Emaar, SOM,Turner,

Samsung, and many of the other professionals

involved in this project are great supporters of

the Council and have published and presented

papers at our recent World Congress. [Please

see the interesting article about the wind tunnel

testing of the Burj in this edition of the Review .]

We look forward to more papers and feedback

from the designers and builders as the job

progresses.

At the time, Duncan Michael from Arup, who

led the tower design, was strongly involved in

the Council, which at the time was already

recognized as a major source of knowledge for

tall building design. Because there were few

buildings of such a size in the world, we were

keen to learn and understand how other

engineers were approaching tall building design.

We used the Council to learn from our

predecessors and to publish our successes.

LEARNING FROM THE PAST

While I have enjoyed most of the projects I

worked on, there are several that had a real

influence on the way I think about structures.

The first of these was the Wye Bridge at

Chepstow, which is a wonderful wrought-iron

and cast-iron vierendeel arch bridge that spans

over the River Wye at the border between

England and Wales (Fig 2). It is a five-span

bridge 372 ft (113m) in length, with the span of

the center arch being 112 ft (34 m).

It is the same story today, but the heights are

different.The second tallest building in Asia is

now Petronas Towers at 452m (1483ft), more

than double the height of the Hopewell Center.

It would not be surprising to me in another 30

years to find that the second tallest tower was

double that height again, 900m (2952ft), and

even double again in another 30 years to

1800m (5904ft). By that reckoning Frank Lloyd

Wright's mile high tower will be realized

sometime in the late 2050s.

CTBUH Review

Summer 2006

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