How To Build The Burj Dubai Tower

Transcription

1 Burj Dubai Tower History Rising Burj Dubai Tower History Rising 2003 All rights reserved. 1

2 Burj Dubai Tower History Rising Burj Dubai Tower Introduction Architecture Structure Sustainability Issues Construction Progress Discussion 2003 All rights reserved. 2

3 Burj Dubai Tower Team Burj Dubai Tower Introduction Architecture Structure IVTA Sustainability Issues Construction Progress Discussion 3

4 World s Tallest Buildings Design Concept Desert flower patterns Traditional Islamic Architecture Arabic Geometry Singer Bld 1908 Met Life 1909 Woolworth Bld 1913 Trump Bld 1930 Chrysler Bld 1930 Empire State 1931 World Trade 1972 Sears Tower 1974 Petronas Towers 1998 Taipei Burj Dubai 2009 Span of 100 years 4

5 Why Build the Burj Dubai Tower? Why Build the Burj Dubai Tower? 5

6 Burj Dubai Tower Burj Dubai Estate Masterplan Doha St Sheikh Zayed Road 6

7 #p Burj Presenatation to Dubai HCT 14-Apr-08 Mixed Use Programme 13-Apr-08. B1 Level Total Tower Area: 279,000 m2 Total Podium Area: 186,000 m2 Tower Usage: 172 Hotel Guestrooms 492 Hotel Residences 354 Residences 232 Luxury residences Total Units Boutique offices 4 Communication Floors 1 Observatory 3,000 Parking Spaces Communication Boutique Offices Luxury Residential Residential Hotel Residences Hotel 7

8 Ground Level Level 3 8

9 Hotel Residential Floor Plan Level 9 Tier 0 Residential Floor Plan Level 64 Tier 6 9

10 Luxury Residential Boutique Office Boutique Office Boutique Office Floor Plan Level 99 Tier 9 Floor Plan Level 113 Tier 10 Sky Lobby / Entry to Club Level 123 Tier 10 Floor Plan Level 139 Tier 12 10

11 Office & Viewing Platform Lifts Fire & Life Safety Diagram Area of Refuge 138 Office Transfer & Viewing Platform at L138 Area of Refuge 111 Communication Boutique Offices Luxury Residential Residential Hotel Residences Hotel Area of Refuge 76 Area of Refuge 42 11

12 Cladding Wind Tunnel Cladding Pressure Tap Test at RWDI Stainless Steel Spandrels Polished Stainless Steel High-performance Insulated Glazing Anodized Aluminium Extruded Aluminium Mullions Tower Cladding Mock-up 12

13 Wind Tunnel Cladding Pressure Diagram Cladding Installation 13

14 Cladding Installation Burj Dubai Tower Introduction Architecture Structure Sustainability Issues Construction Progress Discussion 14

15 Structural System Description Structural Overview Steel Braced Frame Spire/Communication Reinforced Concrete Core Wall System Hotel/Residential/Office Plan Y-shaped floor plan is ideal for residential program Maximizes window perimeter to floor plate area Is inherently stable Buttressed core Three wings arranged around central core Each wing supports other two Setbacks occur at each wing in a spiraling pattern Reduces vortex shedding by changing building shape 24 times Modular system = no transfers Plan Pile Supported Raft Foundation All high performance concrete construction Reinforced concrete core walls linked to exterior columns More rigid structure = less motion 15

16 Buttressed Core Core & Buttresses 16

17 Core Walls Vortex Shedding Setback Level Setback Level Deformed Shape (exaggerated) Outrigger Wall at Mechanical Wing B Core Wall Elevation 17

18 Wind Tunnel Testing at RWDI Movement of the Tower Aeroelastic Test Application unusual geometry significant motion-induced forces Buildings move under wind or seismic loading Computer models are used to calculate this movement Acceleration Summary: Acceleration (mg) Usage Output accelerations overall base overturning moment estimated equivalent lateral forces aerodynamic damping 24.4 Top Office 9.9 Observation Deck 6.9 Top Residential Return Period = 10 years Damping Ratio = 1.5% 18

19 Movement of the Tower Movement of the Tower Buildings move under wind or seismic loading Computer models are used to calculate this movement Acceleration Summary: Acceleration (mg) Usage 24.4 Top Office 9.9 Observation Deck 6.9 Top Residential Return Period = 10 years Damping Ratio = 1.5% 19

20 Seismic Risk Comparison of Seismic Spectra Spectral Acceleration, g Period of Podium UBC Zone 2A Type Sc UBC Zone 1 Type Sc Burj Dubai Tower Site Specific - Irvine Burj Dubai Mall Site Specific - Azm Period of Tower 0.10 Min Acceleration Period (seconds) 20

21 Tower Foundation Foundation Settlement: Tower 1500 Diameter RC Bored Pile (48m) Structure Above 3700 Deep Raft Foundation 21

22 Foundation Settlement: Tower & Podium Steel Spire Top of tower is a steel spire Communications systems, etc Spire constructed above L156 (top of concrete) stories of steel structure Area of construction activities ~ 1.5 to 2 times a tennis court 5 22

23 Steel Spire Spire Erection Sequence Building Eiffel Tower on Tennis Court, which is on the top of Taipei 101!!! 23

24 Concrete Facts Materials & Sustainabiltiy Cement and aggregates locally sourced High-strength concrete, minimises cement usage and concrete volumes Concrete Facts High-Strength Concrete A brittle material Failure is sudden, catastrophic and explosive 24

25 Concrete Facts Concrete Facts Material Quantities 330,000 m³ of concrete Concrete pumped to 629 m - a world record 40,000 tonnes of rebar 4,000 tonnes of structural steelwork 7,500 people 25

26 Burj Dubai Tower Sustainability Issues Cladding Introduction Architecture Structure Sustainability Issues Construction Progress High-performance Insulated Glazing Shading coefficient 0.18 Normal clear glass 0.5 DM maximum 0.33 U-value 1.8 DM maximum 2.1 Discussion 2003 All rights reserved. 26

27 Sustainability Issues Transportation Dedicated tram lines connected to Metro 8,000 people per hour Sustainability Issues Storm Water Drainage Filtered before discharge into DEWA system Lakes act as storm water surge storage 27

28 Sustainability Issues Burj Dubai Tower Air Conditioning & District Cooling 3 dedicated distinct cooling plants Highly efficient Environmentally friendly refrigerants used in AC Variable speed pumps only pump the amount of water required Introduction Architecture Structure Sustainability Issues Construction Progress Discussion 28

29 Construction Construction Oct 2005: Core at Level 10 Apr 2006: Core at Level 40 Jan 2007: Core at Level 99 Aug 2007: Core at Level 146 Mar 2008: Core at Level 160, Spire Started Jun 2009: Practical Completion 29

30 Aug 2004 Aug

31 May 2005 May

32 Jan 2008 Jan

33 View from 630 m - April 2008 Dubai - Can Do

34 Burj Dubai Tower Introduction Burj Dubai Tower History Rising Jan 2008 Architecture Structure Construction Discussion 34

35 Burj Dubai Tower History Rising 2003 All rights reserved. 35