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Special topic in structural Engineering
Capital Gate Abu
Dhabi
Bara AlRefai
United Arab Emirates University
Capital Gate
❖ 160 m tall
❖ 35 stories
❖ Inclined 18 degree to west.
❖ Capital gate title four times
more than the Tower o...
Capital Gate
❖
Capital Gate
❖ Cost $233 million.
❖ 600 people labor force
participate in construction.
❖ Two year of constriction.
❖ Comp...
Structural system
❖ Concrete core surrounded by
two steel truss (diagrid
system).
❖ External and internal diagrid
system (...
Structural system
❖ Outriggers are horizontal trusses
connect building core distant
structural element.
❖ Used to increase...
Foundation
❖ Rectangular raft footing.
❖ 2 m depth and 7000 cubic
meter reinforced concrete.
❖ 490 piles.
❖ Each has 1 m d...
Loads calculations
❖ Source:
❖ https://sites.google.com/site/gr
oup5capitalgate/structure/i-
analysis-and-description
Irregularity that Should be taken in
consideration
❖ The flowing Vertical
Irregularities that may exist in
Capital Gate Ab...
Thank You
References
❖ www.rmjm.com/the-architects-perspective-the-capital-gate
❖ www.e-architect.co.uk/dubai/capital-gate-abu-dhabi...
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Capital Gate

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structural design system and irregularity that may occur in seismic design.

Published in: Design

Capital Gate

  1. 1. Special topic in structural Engineering Capital Gate Abu Dhabi Bara AlRefai United Arab Emirates University
  2. 2. Capital Gate ❖ 160 m tall ❖ 35 stories ❖ Inclined 18 degree to west. ❖ Capital gate title four times more than the Tower of Pisa. ❖ It got Guinness certificate for furthest leaning man mad tower.
  3. 3. Capital Gate ❖
  4. 4. Capital Gate ❖ Cost $233 million. ❖ 600 people labor force participate in construction. ❖ Two year of constriction. ❖ Completed in 2011. ❖ Total Area :53,100 square meter. ❖ Mainly used for hotel and offices.
  5. 5. Structural system ❖ Concrete core surrounded by two steel truss (diagrid system). ❖ External and internal diagrid system (lateral load resisting system). ❖ Steel beam support concrete floor & run between two diagrid system.
  6. 6. Structural system ❖ Outriggers are horizontal trusses connect building core distant structural element. ❖ Used to increase strength and overturning stiffness. ❖ The dense outriggers system started to be used from17th mechanical floor. ❖ Mainly used to resist wind load.
  7. 7. Foundation ❖ Rectangular raft footing. ❖ 2 m depth and 7000 cubic meter reinforced concrete. ❖ 490 piles. ❖ Each has 1 m diameter. ❖ Half under compression with depth of 20 m. ❖ Other half under testation with depth of 30 m.
  8. 8. Loads calculations ❖ Source: ❖ https://sites.google.com/site/gr oup5capitalgate/structure/i- analysis-and-description
  9. 9. Irregularity that Should be taken in consideration ❖ The flowing Vertical Irregularities that may exist in Capital Gate Abu Dhabi : 1. Stiffness irregularity. 2. Mass irregularity. ❖ The flowing plan Irregularities that may exist in Capital Gate Abu Dhabi : 1. Torsional irregularity. 2. Diaphragm Discontinuity. 3. Out-of-plane Offsets of vertical Element.
  10. 10. Thank You
  11. 11. References ❖ www.rmjm.com/the-architects-perspective-the-capital-gate ❖ www.e-architect.co.uk/dubai/capital-gate-abu-dhabi ❖ www.economist.com/blogs/dailychart/2011/10/leaning- buildings ❖ www.slideshare.net/nayanrao1/seminar-on-capital-gate- building ❖ https://sites.google.com/site/group5capitalgate/structure/iii- drawings-and-diagrams ❖ https://store.ctbuh.org/PDF_Previews/Books/2012_CTBUHO utriggerGuide_Preview.pdf

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