Mastering the Challenges: Lessons from the Recent Past. Chris Harris, Operations Manager, Turner International Middle East Ltd

Transcription

1 Mastering the Challenges: Lessons from the Recent Past Chris Harris, Operations Manager, Turner International Middle East Ltd

2 Content 1. Introduction 2. Design Challenges 3. Construction Methodology 4. Construction Challenges 5. Features & Statistics 6. Impacts

3 Introduction

4 Introduction The first CM project in the UAE, 1975 Sheraton Hotel Dubai, UAE The Turner Corporation was founded 1902 (USA) 1975 First project in Middle East The Sheraton Hotel in Dubai, UAE 2010 Tallest building in the world The Burj Khalifa Dubai, UAE TiME from 2006 MENA Presence 7 Countries MENA Staff 1,000 Christopher Harris Operations Manager, TiME 34 Years of Experience B.Sc. Construction Management 1988, University of Cincinnati B.Sc. Civil Engineering Technology 1985, University of Cincinnati The Tallest Building in the World, 2010 Burj Khalifa Dubai, UAE

5 Council on Tall Buildings Tallest Skyscraper Completed Each Year

6 The Inspiration His Highness Sheikh Mohammed Bin Rashid Al Maktoum, UAE Vice President & Prime Minister and Ruler of Dubai, inspired us to push the boundaries and develop the world s tallest building Burj Khalifa The Tallest Integrated Vertical City Home to 10,000 people

7 Downtown Site 2003 June 2006 November

8 Design Challenges

9 Design Challenges & Inspiration Design Inspiration Aerodynamic Shaping Seismic Design Fire and Life Safety Cladding

10 Construction Methodology

11 Construction Methodology Piling Total Status Avg. Diameter Tower % 1,500mm (4.92ft) Podium % 900mm (2.95ft) Annexes % 900mm (2.95ft) Additional car Parking Area % 900mm (2.95ft) Avg. Depth 50m (164.02ft) 35m (114.83ft) 35m (114.83ft) 35m (114.83ft) No. Rigs Used Avg. Daily Production Concrete Grade & Load Tests 2 5 piles / day C60 (8,700 psi) 6,000 mt (6,614 ton) 4 11 piles / day C60 (8,700 psi) 4,000 mt (4,410 ton) 2 6 piles / day C60 (8,700 psi) 4,000 mt (4,410 ton) 2 6 piles / day C60 (8,700 psi) 4,000 mt (4,410 ton) TOTAL 1, days Responsibility Piling Contractor Piling Contractor Main Contract Main Contract

12 Foundation Settlement

13 Construction Methodology Form System Center Core Wall Wing Core Wall Nose Column Automatic Self Climbing System Automatic Self Climbing System Circular Steel Form Panel Form System

14 Construction Challenges

15 Concrete Level Method Equipment Ground ~ L147 Direct Pumping High pressure pump L147 ~ L160 Secondary Pumping Low pressure pump L161 ~ SL6 Concrete Hopper Tower crane S. Pump (L160) Line # 1(L147) Line # 4(L99) Hopper (SL6) Pump # 3 Line # 2. extension to L147 For Back up (131m) Line # 2 (L113) Line # 3(L89) Concrete Pouring Equipment 2 Ground + L147 4 Placing Booms + 1 Hopper Delivery Line 4 Lines from Ground + 1 Line from L147 Emergency Plan 1 of 4 Lines for Back up Use Placing Concrete Pump on Set back Floor Concrete Pouring by Tower Crane Pump # 1 Pump # 2

16 Cranage High Speed & Large Capacity Hoisting Time High Speed : 220 m/min Net Hoisting Minutes : 12.7 min at 700m Capacity T/C#1 Favco M440D 25 ton T/C#2 Favco M380D 19 ton T/C#3 Favco M220D 11 ton 3 nos. Tower Crane 3 Working Day Cycle Schedule Construction Method for Minimization Hoisting Time: Self Climbing Form, 2 Storey Rebar Preassembling Wall Bracket Type Minimization of Interferences from other Equipment & Formwork Avoiding Unnecessary Re positioning

17 Cranage

18 Structure: Lifting Jack Installation (Actual)

19 Structure: Pinnacle Pipe Installation Complete (Actual)

20 Features & Statistics

21 Mixed Use Development Level 148 Levels Levels Level 125 Levels 124 Levels 122 Levels Levels Levels Levels Levels VIP Observatory Floor Communication & Broadcast Corporate Suites Observatory Floor At The Top Observatory Atmosphere Restaurant Corporate Suites Sky Lobby & Residential Sky Lobby & Residential Armani Residences & Suites Armani Hotel

22 Features & Statistics Structure Frame: primarily concrete (structural steel above level 156) concrete: 310,000 m 3 reinforcement steel: 34,100 mt (37,590 ton) structural steel: 6,500 mt (7,165 ton) SP2~Final Spire Structure L157~L160 Structural Steel Concourse ~ L156 Reinforced Concrete

23 Wind Tunnel Testing at RWDI Aeroelastic Test Application unusual geometry significant motioninduced forces Output accelerations overall base overturning moment estimated equivalent lateral forces aerodynamic damping

24 Cladding Pressure Testing

25 Features & Statistics Façade Curtain wall: fully unitized system predominantly silver reflective glazing and stainless steel area of curtain wall & cladding: 140,000m 2 (1.5 Mft 2 ) length of stainless steel fins: 100,000m (328,100 ft) Podium Mock-up Tower Mock-up

26 Features & Statistics Fire & Life Safety Building designed into vertical compartments divided at plant room levels. Evacuation to Areas of Refuge at the base of each vertical zone Elevators not connecting to the fire zone can remain in use Elevator Life boat operation Area of Area of

27 Stack Effect Mitigation Mitigated through: Revolving doors/air locks/gaskets Mechanical systems balancing Air tight construction of continuous shafts and exterior wall Interruption of continuous shafts through use of: Air locks Revolving doors Intermediate level lobbies Areas of refuge

28 A total of 54 elevators Vertical Transportation Total number of lifts: 54 Total number of escalators: 8 Longest travel: 498 m (1,635 ft) Fastest double deck: 10 m / sec (23 mph) Fastest single deck: 9 m / sec) Largest capacity: 4,500 kg (9,921 lb) Spire access by rack & pinion elevator 17 used during construction phase

29 Landscaping & Fountains

30 World s first Armani Hotel & Residence

31 Impacts

32 Impact Records Highest outdoor observation deck in the world: Level 124 World record for vertical concrete pumping: 605 meters, beating the previous record held by Taipei 101 (448 meters or 1,470 ft.) Tallest service elevator in the world: 504 meters (1,654 ft.), more than the height of Taipei 101 (448 meters) and almost one and a half times that of the Empire State Building in New York (381 meters) Highest installation of an aluminium and glass façade Highest swimming pool on Level 76 (over 270 meters; over 885 ft.) Tallest building in the world: Surpassing Taipei 101 in Taiwan, which at 508 meters (1,667 ft.) had held the title of the tallest building in the world since it opened in 2004 Tallest man made structure in the world: Surpassing the KVLY TV mast in North Dakota, USA, which stands at meters (2,063 ft.) Tallest free standing structure in the world: Breaking the 31 year old record of CN Tower, which stands at meters (1,815.5 ft.) Largest number of storeys in the world: 200 plus with 160 habitable storeys Highest occupied floor in the world: Level 160

33 Thank You