Marina Bay Sands Sky Park Cantilever

VC Cheong

51 Marina Bay Sands Integrated Resort 2007 - 2010

52

Esplanade

Marina Bay

Marina Bay Sands

Merlion

53 Overall View

Skypark

Steel Roof Event Plaza

Crystal

Pavilion

Promenade - Retail

54 Project Organization

Marina Bay Sands (MBS)

Moshe Safdie Associates (MSA) / Aedas

Arup

C&S/Traffic

Parson

Brinckerhoff

(MEP)

Arup

Facade

Arup

Acoustic

Arup Site

Supervision

Arup

Fire

Arup

Security

55

Scope Demarcation Between Offices

Advanced Contracts (Singapore)

Conceptual & Schematic Design (Boston/New York/Hong Kong)

Design Development (Hong Kong/Singapore)

Tender Documentation (Hong Kong/Singapore)

Detailed Design (Hong Kong/Singapore)

Authority Submission (Singapore)

Construction Documentation (Hong Kong/Singapore)

Site Supervision (Singapore)

56 Arup Offices

Hong Kong

Singapore

Sydney

London

Shenzhen

Manila

Melbourne

Brisbane

Boston

New York

New York

Singapore

Hong Kong

Sydney

London

Melbourne

Boston

Brisbane

Shenzhen

Manila

Newcastle

Newcastle

Involved for Skypark Design

57 Project Communication Chart

Design and Construction Stage

Coordination

with MSA

Lead by AEDAS

• Museum Steelwork (schematic design)

• Risk and Security

• Podium Steel Roof

• Hotel Towers

• Foundation

Site Supervision

• Acoustic, Façade

and Fire

• Sky park

•Podium Concrete Structure

• Museum Steel works (detail design)

• Infrastructure

Arup HK in Singapore

• Project Management

• Podium coordination

• Geotechnical works

Coordination with MSA

Lead by AEDAS

• Traffic

ARUP

MELBOURNE

AEDAS EXECUTIVE

ARCHITECT

MSA CONCEPTUAL

ARCHITECT

MBS CLIENT

ARUP

HK/SHZ

ARUP

SINGAPORE

ARUP

Brisbane

ARUP

SYDNEY

ARUP

NEWCASTLE Dynamics Studies on

SkyPark Peer Review on

SkyPark Design

ARUP

LONDON

ARUP

NEW YORK

ARUP

BOSTON

•

••Podium

•Museum

58

SkyPark Engineering Facts

Skypark length 340 m

Steelwork tonnage 7,700 tons (permanent) &

4,400 tons (temporary)

Cantilever length 65 m

Cantilever weight 3,500 tons

Lifting of cantilever structure 13 weeks

59

Cantilever Structural Design Movement & Dynamics

Tight Construction Programme Lifting Methodology

MBS – SkyPark Cantilever

Design Challenges

60 Design Challenges

Cantilever Structural Design

61 Structural Layout at L56

65m Cantilever

MJ MJ MJ MJ

Truss Truss

Box Girder

4.6

5m

/ 6.1

5m

10m

Steel Frame with columns at 10mc/c columns at 10mc/c

Steel Frame with

4.6

5m

/ 6.1

5m

TOWER 1 TOWER 2 TOWER 3

62 Cantilever Section – Design Evolution

SCHEME 1 --- SPACE TRUSS

CONSTRUCTED FROM I-SECTIONS

SCHEME 2 ---RAISED LANDSCAPE

DECK ALTERNATIVE

SCHEME 3 --- BOX GIRDERS WITH

CROSS BEAM

SCHEME 4 --- PT Box Girder (Final Scheme)

63 Cantilever Section

Plan

Elev.

4m wide x 3.55m ~10m deep box girder

1.25m/ 1.75m

dp. transverse

plate girder at

4.2m c/c

175/ 225mm

thk.

composite

deck slab

4m wide x 3.55m ~10m deep box girder

Column

support

64 Fabrication & Erection of Steel Frames

65 Rendering of V & W Columns

66 Design Challenges

Movement & Dynamics

67 Movement Joint

Gravity : 150mm (Irreversible)

Wind: +/- 250mm (Reversible)

Seismic: +/- 600mm (Reversible)

Maximum Anticipated Movement

Sufficient “travelling

distance” during

seismic event

HOTEL

TOWER

68 Movement Joints (Bearings)

69

Bending of Cantilever with Tower Sway Torsional Mode

First Bending Mode Second Bending Mode

Purpose of Dynamic Studies

70

4No 15T TMDs

(PRELIMINARY

SCHEME)

1No 5T TMD (Final

Scheme)

Tuned Mass Damper

71 Tuned Mass Damper

5T Tuned

Mass

Damper

72 Dynamic Studies – In situ Testing

73

Almost 150 people

participated jumping test at

tip of the cantilever

2010.05.26

74

75 Key Findings

Measured Mode 1: Predicted Mode 1:

Predicted Mode 3: Measured Mode 3:

76 76 Crowd Management

Viewing Platform

Maximum capacity of 600

people for general use.

Dancing activities are not

recommended

Outdoor Restaurant Terrace

Limit to 470 people for

general dancing with

restricted access to all viewing

platform

Indoor Restaurant

Limit to 345 people for

general dancing with

restricted access to all viewing

platform

77 Design Challenges

Construction Methods

78 Installation at L55/56/57 & Roofing

Assembly at Level 1

Heavy lifting to L55

79 Lifting of Bridge Trusses

80 Lifting of Bridge Trusses

81 Bridge Trusses being slided into position

82 Lifting of Bridge Trusses

83 Lifting Gantries for Cantilever Backspan

84 Lifting of Cantilever Backspan

85 Lifting of Cantilever Backspan

86 Lifting of Cantilever Backspan

87 Lifting of Cantilever Segments

88 Lifting of Cantilever Segments

89 Lifting of Cantilever Segments

90 Lifting of Cantilever Segments

91 Lifting of Cantilever Segments

92 Lifting of Cantilever Segments

93

skypark

Overview of SkyPark

94 Fabrication of Box Girders

95 Backspan with 10m deep section

96 Lifting - In Action

Segment 5 (24th December 2009)

99 Design Challenges

Challenge Against Time

100 Tight Construction Programme and Collaboration with Arup Offices

101 101

What Values have been brought to Arup?

Successful Cross Regional Collaboration Irrespective of Cultural Differences

Skills and Experience Sharing among Offices and Staff

Created Good Bonding and Networking Between Offices/Staff

Enhanced Arup’s Reputation and Business Opportunities

Enriched Arup’s Portfolio of World-class Iconic Projects

102 Marina Bay Sands Integrated Resort 2007 - 2010

Thank You