Structural steel’s role in shaping landmark public...

Structural steel’s role in shaping landmark

public buildings A global perspective

Mike King – Transport Buildings Leader

Australian Steel Convention 2017 - Steeling Australia's Infrastructure

17-19 September 2017

• London Aquatics Centre

• Singapore National Stadium

• King’s Cross Station

Image: Peter Bishop – Bartlett Omega Programme

Case Study 1:

London Aquatics Centre

Completed – Olympics: 2011, Legacy 2014

London Olympic Park

Concept design – April 2007

Initial Concept Structural Design

Final ‘Reduced Risk’ and simplified design

Floor Plan

Training Pool Filtration Plant Room Competition Pool Dive Tank

Line of North Roof Supports Line of South Roof Supports

Building Form –

Long Section

3D Revit Model

Final Structural Design

‘Simple’ 2D Trusses

Conventional structural systems.

Fabricated Steel Plate Girders

Sliding Spherical

Bearings

South Abutment

Fixed Spherical

Bearings North

Cores

95m clear span

30m cantilever

Minimal Structural Support

Structural

Roof Zones

Structure Description

Structural Actions

Detailed Curvature achieved through standard UB-Sections curved in 2D

Case Study 2:

King’s Cross Station - LondonCompleted 2012

King’s Cross Station and Precinct

Title?Another Image

Singapore Sports Hub


North South Section – LUL Northern Ticket Hall Below



East-West Section



Complex 3D Shell Driven By Simple Geometric Rules



Highly Efficient Diagrid Shell Structure

Case Study 3:National Stadium –


Completed –2014

Singapore Sports Hub – National Stadium Centrepiece

Giant louvres

provide shade and

rain protection to

space outside the

stadium

Insulated metal roof reflects

sunlight to reduce heat gain

Moving roof blocks

out solar radiation

and rain during

event

Roof designed to

provide naturally

ventilated space which

reduces energy required

for cooling.

National Stadium

Design as a Response to Climate

Football

54,417

Cricket

51,293

Athletics

50,745

• 8 moving tiers elements

• 49 concourse platforms

• 36 concourse tiers elements

• Reconfiguration Athletics to Football in 48hrs

National Stadium – Movable Tiers

National Stadium |

Football Mode

abc

3D Network of

Trusses & Ring

Beam forming a

stiff shell.

National Stadium Fixed Roof Structure


Secondary Structure


Predominantly a 3D Axial

Load System –

An Extremely efficient

structure.


Primary &

Secondary Truss

Detail


Complex multi-CHS

Node Connections

National Stadium | Fixed Roof Structure

Finite Element

Modeling of

Complex

Connections

National StadiumMoving Roof Structure

Moving

Roof Open

National Stadium Moving Roof Structure

Movable Roof –

Moving System

National Stadium |

BIM - Integrated Architecture & Engineering

National Stadium


GSA Analysis &

Design Model

National Stadium


Tekla

Structural Steel Model

Documentation &

Fabrication

National Stadium BIM

Roof Construction Methodology Developed from the BIM Model

National Stadium

Construction

Progress

October 2013

National Stadium

Complete 2014

Grade

Member Connection

Total

(tonnes)

Percentage

SavingMass

(tonnes)

Percentage

Saving

Mass

(tonnes)

Percentage

Saving

HF S275

members and

connections

5654 -4% 943 -10% 6597 -5%

CF S355

members and

connections

5451 0%861 (16%

allowance)0% 6312 0%

HF S355

members and

connections

5285 3% 861 0% 6146 2.6%

S500 with

movable roof

and reduced

section library

4171 23.5% 813 -5.6% 4983 21.1%

S690 with

movable roof

and reduced

section library

3617 34% 780 -9% 4397 30%

National Stadium

The Future:

Benefits of Higher

Grade Steel

S500 and S690

Thank You

Structural steel’s role in shaping landmark public...

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