The document provides details about the Capital Gate building project in Abu Dhabi. It describes the building as having a record lean of 18 degrees and being 160 meters tall. Unconventional construction methods were used, including pre-cambering and post-tensioning of the core and custom steel diagrids. The building achieved several awards and set new benchmarks in civil engineering.

1. Capital Gate
Case Study
Presented By:
Jeesmon Babu
S7 CE B
Roll no. -35
Guided By:
Mr. Lins Paul Kuriakose
Assistant Professor
Dept. Of Civil Engg

2. Capital Gate- Case Study
VISWAJYOTHI COLLEGE OF ENGINEERING
AND TECHNOLOGY, VAZHAKULAM
VISION
“Moulding Engineers par Excellence with Integrity, Fairness and Human Value”
MISSION
 We commit to develop the institution into a Center of Excellence of
International Standards.
 We guide and mould our students in the attainment of intellectual and
professional competence for successfully coping with the rapid and challenging
advancements in technologies and the ever changing world of business,
industry and services.

3. Capital Gate- Case Study
 We help and support our students in their personal growth shaping them
into mature and responsible individuals.
 We strive to cultivate a sense of social and civic responsibility in our
students, empowering them to serve the humanity.
 We promise to ensure a free environment where quest for the truth is
encouraged.

4. Capital Gate- Case Study
CIVIL ENGINEERING
DEPARTMENT
VISION
“Building Professionally Competent and Motivated Engineers in the Arena of
Civil Engineering with High Professional Ethics.”
MISSION
 To promote a better teaching learning process through academically
proficient faculties, full fledged laboratories and excellent infrastructure
facilities.
 To equip the graduates with knowledge, research and practical skills in
modern construction practices and techniques.
 To inculcate knowledge of sustainability in various domains of Civil
Engineering.
 To nurture Civil Engineers into ethically strong and responsible leaders to
address global challenges through quality education.

5. Capital Gate- Case Study
PROGRAM EDUCATIONAL OBJECTIVES
Our Graduates
 Shall tackle the multiple responsibilities of analysis, design and
construction of traditional and modern systems in compliance with various
codes of practices and to meet the current technical challenges.
 Shall be proficient in the use of relevant software packages for planning,
designing, scheduling, executing and controlling of civil engineering
projects, with an urge for life-long learning.
 Shall function effectively with individual capabilities as well as with a
collective strength as a professional team with good communication skills.

6. Capital Gate- Case Study
PROGRAMME SPECIFIC
OUTCOMES
CIVIL ENGINEERING DEPARTMENT
 Ability to utilize civil engineering principles and software that are appropriate
to solve technical problems, prepare design and construction documents ,create
structural systems; produce drawings, reports and quantity estimates related to
the Civil Engineering domain.
 Ability to utilize modern surveying methods for land measurement and/or
construction layout and to conduct standardized field /laboratory tests related to
Civil Engineering.

7. Capital Gate- Case Study
Overview
 Introduction
 Design and Aesthetics
 Achievements and awards
 Foundation
 Core
 Diagrids
 Façade
 Splash
 Atrium
 Amenities
 Project Data
 Project Timeline
 conclusion
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8. Capital Gate- Case Study
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9. Capital Gate- Case Study
Introduction
 Located in Abu Dhabi Capital Centre
 Record lean of 18 degree west
 Centerpiece of ADNEC Complements
the national grandstand
 35 storeys
 160 m tall
 Built up area of 53100 square meter
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10. Capital Gate- Case Study
Design and Aesthetics
 Something unique never achieved before
 Inspired from sand dunes of the desert and
waves of the sea
 Dynamic and Fluidic design
 Every element is unique
 No two sections or floor plan are same
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Courtesy: google
Courtesy: google

11. Capital Gate- Case Study
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Courtesy : Pinterest

12. Capital Gate- Case Study
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Office Hotel

13. Capital Gate- Case Study
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19 roof

14. Capital Gate- Case Study
Achievements and awards
 Best Commercial High-rise Development at International Property Awards
2015
 "Farthest manmade leaning building“ by Guinness World Records 2010
 Commercial/Mixed-Use Built and Overall Project of the Year Award 2011-
Cityscape Global Awards
 First building to use Pre Cambered Core
 First building to use vertical tensioning in core
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15. Capital Gate- Case Study
Foundation
 RRC Raft foundation on top
 6000 cubic meter sand was
removed
 490 piles
 Depth of 20 m –Compression side
600mm dia
 Depth 30 m – Tension side
1000mm dia
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16. Capital Gate- Case Study
Core
 Used to transfer building
load to ground
 Pre cambered
 Post tensioned
 Jump forming
 Houses stairways , lifts
and other amenities
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17. Capital Gate- Case Study
Pre cambered
 Core is built with a tilt as floors are
stacked its pulled to become straight
 Rebars were set during day and
concrete was placed at night
 Reinforced with 10,000 tons of steel
 Concrete of 250mm slump
 15,000 cubic meters of concrete
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18. Capital Gate- Case Study
Post Tensioned
 Usually used in bridge decks
 Vertical ducts are used
 146 steel tendons 20m long spliced
at 5 m
 120 tons of tendons
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19. Capital Gate- Case Study
Jump forming
 The formwork is prepared for
the core and that section is
concreted
 The whole form work is lifted
using hydraulic jacks and
above processes is repeated
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20. Capital Gate- Case Study
Diagrids
 Each one custom fabricated in
Sharjah
 external shell to transfer loads to
the ground and core
 Egg shell
 More space
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21. Capital Gate- Case Study
External Diagrid
 Transfers external load to
ground
 Hollow Square sections
600mmx600mm
 Built of welded steel plates
80mm to 40mm
 RCC ring beam at ground takes
load
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Courtesy: capitalgate.ae

22. Capital Gate- Case Study
Internal Diagrid
 In place to transfer load of the atrium
 Transfers loads to the core
 8 m high steel plates connected to core
 Hollow round steel 400mm diameter
 Mirrors the external diagrid
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Courtesy: Jeff Schofield

23. Capital Gate- Case Study
Outriggers
 Experiences moderate winds
 Resisted by curved shape
 Used to counter act lateral forces
 Horizontal trusses in the mechanical floor
 Transfers lateral forces from external
structure to the core
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24. Capital Gate- Case Study
Façade
 Diamond shaped panels each
custom made
 8mx8m
 12500 Triangular glass panes
 20mm shifts experienced
 Waterproof
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25. Capital Gate- Case Study
 The glazing system, called
Cardinal C240, is made of two
silver coatings which are
transparent, increasing its light
transmission.
 Double skin façade
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Courtesy: capitalgate.ae

26. Capital Gate- Case Study
Splash
 Built to protect the office sections from direct sunlight
 Serves an aesthetic purpose
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Courtesy: Jeff Schofield
Courtesy: Jeff Schofield

27. Capital Gate- Case Study
Atrium
 Funnel shaped opening in hotel section
 To reduce weight on the top floors
 Allows sunlight through a skylight in the roof
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Courtesy: Jeff Schofield

28. Capital Gate- Case Study
Amenities
 Infinity pools
 Restaurants
 Helipad
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Courtesy: capitalgate.ae
Courtesy: capitalgate.ae

29. Capital Gate- Case Study
 30 meeting rooms
 Conference facilities for 1,200
people
 District cooling system
 Business center on the ground
floor
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Courtesy: capitalgate.ae
Courtesy: google
Courtesy: google

30. Capital Gate- Case Study
Project Data
 Cost of the project was $233 million
 600 people labor force from different countries
 400 sub contractors
 Height to Architectural Top: 165 meters
 Total built up Area: 53,100 square meters
 Project Developer: ADNEC Group
 Architect , Structural Engineer, MEP Engineer: RMJM
 Façade Consultant: Hyder Consulting
 Landscape Consultant: Al Khatib Cracknell
 Main Contractor: Al Habtoor Engineering
 Steel Contractor: Eversendai Façade Contractor: Waagner Biro
 Project Manager: Mace
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31. Capital Gate- Case Study
Project Timeline
 September 2007 – work commence
 November 2007 – Pile driving starts
 April 2008 – Core wall construction starts
 February 2009 – Façade commences
 May 2009 – Reaches 100 m in height
 June 2009 – Incline starts to take shape
 October 2009 – Attains final height of 160 m
 December 2009 – Completion of exterior core structure
 January 2010 – First phase of splash completed
 February 2010 – Interior fit-out commences
 March 2010 – Commencement of link bridge to Abu Dhabi
National Exhibition Centre
 April 2010 – Commencement of atrium roof
 2011 – Completed construction
 Opening date 21 Dec 2011
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32. Capital Gate- Case Study
Conclusion
An engineering marvel that sets an example for upcoming engineers that
nothing is too big to be achieved. It also shows the advanced technologies
used to erect this gravity defying structure.
Use of unconventional methods to get the work done in most efficient and
economic ways set new benchmarks for civil engineering
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33. Capital Gate- Case Study
References
 https://www.designbuild-network.com/projects/capital-gate/
 http://www.capitalgate.ae/building.html
 All video courtesy National Geographic Channel –”The Leaning Tower of
Abu Dhabi”
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