30 st mary axe the bullet building

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NATIONAL INSTITUTE OF CONSTRUCTION MANAGEMENT

& RESEARCH, GOA CAMPUS

PROJECT MANAGEMENT SYSTEMS

Presentation on30 ST. MARY AXE, LONDON

“THE GHERKIN”UNDER THE GUIDANCE OFPROFESSOR SIDHESH PAI

SUBMITTED BY:ROHAN MASKAY (GO6150)SACHIN PATIL (G06157)SUJITH PUND (G06161)

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INTRODUCTION

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• 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.

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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

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The former Baltic Exchange building

History :

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.

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PROJECT DETAILSClient 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

Steel Suppliers Hollandia BV, Victor Buyck Steel Construction NV

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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 Suppliers

Lalesse Gevelliften BV, B. Teupen Maschinenbau GmbH

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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.

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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.

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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.


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.


• 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

Recent cost


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.


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


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 and blinds are computer controlled• Solar blinds to reclaim or reject heat

• Windows open when external temperature is between 20°C and 26°C and wind speed is less than 10 mph


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.


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%.


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.



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.



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.


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


• Tower Structural Steelwork Total weight of steel : 8,358

tonnesof 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


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.


ACCOMMODATION

•Schedule of different floors

•Lounge Bar & restaurant

•Private dining

•Plaza

Softwares used for the

buildingArchitectural AutoCAD I Render

http://download.cnet.com/AutoCAD/3000-6677_4-10573933.html

http://download.cnet.com/AutoCAD/3000-6677_4-10573933.html

http://www.warezaccess.com/search/i-render.html


FLOOR DETAILS

ACCOMMODATION




A



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


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 fixtures are specified.


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.


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

”

http://thinkexist.com/quotation/planning_is_bringing_the_future_into_the_present/194902.html




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30 st mary axe the bullet building