1. NATIONAL INSTITUTE OF
CONSTRUCTION MANAGEMENT &
RESEARCH, GOA CAMPUS
PROJECT MANAGEMENT SYSTEMS
Presentation on
30 ST. MARY AXE, LONDON
“THE GHERKIN”
SUBMITTED BY:
UNDER THE GUIDANCE OF ROHAN MASKAY (GO6150)
PROFESSOR SIDHESH PAI SACHIN PATIL (G06157)
1
SUJITH PUND (G06161)

2. NICMAR GOA CAMPUS 2

3. INTRODUCTION
• 30 St Mary Axe, better known as the Gherkin because is floor plan resembled a
sliced pickle.
•Flexible and environmentally sound office space in London.
• London’s first ecological green tall building.
• It is the second highest building in the City of London.
•The site of the 30 St Mary Axe building lies at the heart of the City’s
insurance district.
3
NICMAR GOA CAMPUS

4. INTRODUCTION
• Each floor is circular and comprises an
outer ring with equally spaced radial
beams
• The building provides approximately
500,000 sq ft of office space
• Building Type: Commercial High-Rise
• Floors: 40 floors
• Height: 179.8 meters
• Estimated actual area : ~500,000 sq. ft.
• Project value: £200 million
NICMAR GOA CAMPUS 4

5. History :
The former Baltic Exchange building
The historic building was designed in 1903.
On 10 April 1992 at 9:20 pm, the building was demolished
in a Provisional Irish republican Army bomb attack.
The bomb also caused damage to surrounding buildings.
in 1998 with the permission of the planning minister John
Prescott.
NICMAR GOA CAMPUS 5

6. PROJECT DETAILS
Client Swiss Re
Project Manager RWG Associates
Architect Foster and Partners
Structural Engineer Arup
Building Services Engineer Hilson Moran Partnership
Cost consultant Gardiner & Theobold
Fire Engineering Arup
Main Contractor Skanska
NICMAR GOA CAMPUS 6

7. Dome sub-contractor Waagner-Biro
M&E Engineer Hilson Moran Partnership
Interior Designer Benett Interior Design
Wind Surveyor Rowan Williams Davies & Irwin
Inc.
Lighting Consultant Speirs and Major Associates
Acoustics Consultant Sandy Brown Associates LLP
Security System Consultant Videf Security Management Ltd.
Elevator Supplier KONE United Kingdom
Facade Maintenance System Lalesse Gevelliften BV, B. Teupen
NICMAR GOA CAMPUS 7
Suppliers Maschinenbau GmbH

8. Planning & Implementation
• Swiss Re started developing proposals for the site in 1998.
• The construction work started in January 2001.
• Completion Date: September 2003
• The building officially opened in March 2004
• 30 St Mary Axe is situated on a site of 1.4 acres.
NICMAR GOA CAMPUS 8

9. Materials
• 35 km of steel, 10 thousand tons were used to build the
Swiss Re
• 24,000 square meters of glass were used for the exterior
of the building, equivalent to five football fields.
• The building was designed to use recycled or recyclable
materials whenever possible.
• The tower's exterior cladding consists of roughly 5,500
flat triangular, diamond-shaped glass panels.
NICMAR GOA CAMPUS 9

10. Issue
• On 25 April 2005, the press
reported that a glass panel 590 ft
tower had fallen to the plaza
beneath on 18 April.
• The plaza was sealed off, but the
building remained open.
• Engineers examined the other 744
glass panels on the building.
• The cost of repair was covered by
main contractor Skanska and
curtain wall supplier.
NICMAR GOA CAMPUS 10

11. Cost
• Cost of land €90,000,000
• The structure cost estimated €200,000,000 or $266,260,443.
i.e. 1,446.32Cr.
• The building was privately owned by Swiss Reinsurance
Company.
NICMAR GOA CAMPUS 11

12. Recent cost
• In September 2006, the building was put up for sale with a
price tag of GB£600 million.
• On 21 February 2007, IVG Immobilien AG and UK
investment firm Evans Randall completed their joint purchase
of the building for GB£630 million, making it Britain's most
expensive office building.
• i.e 5,457.34 Cr
NICMAR GOA CAMPUS 12

13. UNIQUE FORM
The World’s 18th strangest building
• The cigar shaped profile responds
to the specific demands of the
small site.
• It appears less bulky than a
conventional rectangular block
• The slim base reduces reflections
and increases daylight penetration
• The rounded shape also prevents
winds from being deflected &
maintains a comfortable space in
the public plaza.
NICMAR GOA CAMPUS 13

14. A UNIQUE FORM
• Constructed on a diagrid structure
• Made of 5,500 glass panels
• Only piece of curved glass is the lens
• Radial floor design with each floor is rotated 5°
• Smaller footprint allows for a public plaza
• Aerodynamic shape creates less downdraft
• Building shape allows for natural light
NICMAR GOA CAMPUS 14

15. Sustainability & Ventilation
• Differing air pressures and double skin
façade allow for natural ventilation
• Six spiralling light wells allow daylight
to flood down onto the floors
• Windows open when
external temperature is
between 20°C and 26°C
and wind speed is less
than 10 mph
• Windows and blinds
are computer controlled
• Solar blinds to reclaim
or reject heat
NICMAR GOA CAMPUS 15

16. Energy Use
• Temperature can be controlled in several
separate zones on each floor
• Building can potentially turn off mechanical
temperature system 40% of the year
• Main energy source is gas
• Building was supposed to consume 50% less
energy
• The building uses open windows and natural
ventilation to reduce energy costs.
NICMAR GOA CAMPUS 16

17. SUSTAINABLE BUILDING:
• The tower is aerodynamically designed to reduce wind
load on the structure, whilst the lower part tapers so that
wind wraps around the tower.
• The six fingers of accommodation on each floor,
configured with light wells in between, maximize
daylight penetration.
• The façade design with advance glazing technologies,
ventilated cavities and blinds , provides up to 85% solar
protection.
• Gas is the main fuel used hence it will only generate half
the carbon emission.
• Overall energy serving is up to 50%.
NICMAR GOA CAMPUS 17

18. Circulation
• Each of the two main stairwells contains 1,037 stairs.
• The 23 lifts vary in velocity from 1 metre per second to 6
meters per second.
NICMAR GOA CAMPUS 18

19. NICMAR GOA CAMPUS 19

20. LIFTS:
• There are 18 passenger lifts in the building.
• 378 people can be vertically transported through the building at
speeds upto 6m per second at any time.
• In addition, there are goods and firefighter elevators, as well as a car
park elevator to the reception from the basement.
• Two special shuttle elevators serve the top floors of the building.
• KONE Alta™ fulfilled the architects’ requirements for customized
elevator cars and signalization.
• 3 different levels:
– Low rise go from lobby to level 12.
– Medium rise lifts go from lobby to 22 stopping from level 11.
– High rise lifts go from lobby to 34 stopping from level 22.
– Shuttle lift goes from level 34 to level 39.
NICMAR GOA CAMPUS 20

21. NICMAR GOA CAMPUS 21

22. Benefits Of Project To Society
• 30 St. Mary’s Axe has instantly become a symbol of
London’s financial district.
• Movies, filmed in London, made sure to get a few
shots of the new skyline.
• while tourist come to see the building, and few are
lucky enough to get to the top.
NICMAR GOA CAMPUS 22

23. Facts and figures
• Dimensions
• Height to top of dome: 179.8 m
• Number of floors above ground: 40
• Site area:0.57 hectares (1.4 acres)
• Net accommodations areas:
• Office 46,450 m2
• Retail 1,400 m2
• Office floor-floor: 4.15 m
NICMAR GOA CAMPUS 23

24. • Tower Structural Steelwork
 Total weight of steel : 8,358 tonnes
of which:
➤ 29% is in the diagrid
➤ 24% core columns
➤ 47% beams.
• Foundations
 750mm diameter straight-shafted
piles into London Clay
 Number of piles: 333
 Total length of piles: 9 km
 Total design capacity: 117,000
Tonnes
NICMAR GOA CAMPUS 24

25. Awards
• Emporis Skyscraper Award, 2003
• Best British Innovation, 2003
• Walpoldaward for British Excelence, 2003
• StirlingPrize, 2004
• Special Steel Award, 2004
• Best Central London Office Development, 2004—IAS/OAS
• In 2006 the building was given the Civic Trust Award.
NICMAR GOA CAMPUS 25

26. ACCOMMODATION
•Schedule of different floors
•Lounge Bar & restaurant
•Private dining
•Plaza
Softwares used for the building
Architectural
 AutoCAD
I Render
NICMAR GOA CAMPUS 26

27. FLOOR ACCOMMODATION
DETAILS
NICMAR GOA CAMPUS 27

28. NICMAR GOA CAMPUS 28

29. NICMAR GOA CAMPUS 29

30. A
NICMAR GOA CAMPUS 30

31. NICMAR GOA CAMPUS 31

32. Latest technology
Sustainable design was used extensively
For e.g..
• Windows in the light wells open automatically to
augment the air conditioning system with natural
ventilation.
• The tower is aerodynamically designed to reduce wind
load on the structure.
• 30 St. Mary Axe will consume up to 50% less energy
than a comparable high profile office tower as 550
triangular glass panels are used.
• The cavities between the outer layer and inner screen
act as a buffer-reduce air condition system
NICMAR GOA CAMPUS 32

33. Environmental challenges
• Radial floor design with each floor is rotated 5 .
• Minimum impact on the local wind environment.
• environmentally progressive working environment.
• Foster and Partners supports sustainable design
• The atria allow natural light and ventilation into the
building.
• Operable windows and blinds located within the layers
of glazing control the environment within.
• Mechanical ventilation is decentralized and based on a
floor-by-floor flexible system.
• Movement and light level sensors help reduce the
electric lighting consumption, and low energy light
NICMAR GOA CAMPUS 33
fixtures are specified.

34. Role of project manager
The project manager was responsible for the following to
implement the project successfully:-
• Project time:- completion of project with time duration (3
months before given project duraton.
• Project cost :- controlled the cost and limited it to
200,000,000 euros.
• Project resources:- Specialists were hired for each
departments(1998 to 2001).
• Project quality :- Quality was maintained throughout the
duration by using only the best resources in the market.
NICMAR GOA CAMPUS 34

35. Conclusion
• Technology is always evolving to meet the
changing needs of users and in this case it was
used for efficiently.
• Planning was detailed, organised, and involved
team participation with specialists assigned
for each activity.
“Planning is bringing the future into the present
so that you can do something about it now”
NICMAR GOA CAMPUS 35

36. NICMAR GOA CAMPUS 36