Richard Rogers - Facultyfaculty.arch.tamu.edu/media/cms_page_media/4433/LLOYDS.pdf · Design Team:...
Transcript of Richard Rogers - Facultyfaculty.arch.tamu.edu/media/cms_page_media/4433/LLOYDS.pdf · Design Team:...
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Lloyds Building 1978-86, LondonRichard Rogers
Arch 631
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Client: Corporation of Lloyd's of London
Bussiness nature: Insurance
Design Team: Richard Rogers Partnership
Structural Engineer: Ove Arup & Partners
Services Engineer: Ove Arup & Partners
Built Up Area: 52,200 square metres gross area
Lloyds Building 1978-86, London Richard Rogers Arch 631
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DECEMBER 1980 NOVEMBER 1981 MAY 1982 NOVEMBER 1982
APRIL 1983 JULY 1983 NOVEMBER 1983 APRIL 1984
AUGUST 1984 OCTOBER 1984 MAY 1985 JUNE 1986
Lloyds Building 1978-86, London Richard Rogers Arch 631
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Lloyds Building 1978-86, London Richard Rogers Arch 631
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The Lloyds Building, consisting of twelve stories to the north, stepping down to six stories to the south
Served zone
Servant towers with incorporation of
raised flooring system and ceiling viod
Spatial Configuration
Atrium
Lloyds Building 1978-86, London Richard Rogers Arch 631
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Structural Elements
Material : exposed concrete
Floor : waffle beam grid – enables longer span.
-The floors are composed of a network beams of 550mm x 300mm beams at 1.8m centres supported by inserted in situ U-beams which are post-tensioned to allow the 18m span length. -The corners of the building are also prestressed and post-tensioned in two directions to limit the deflections of the floors. -To create a service void, stub columns are placed on top of these beams which a permanent, specially-designed steel shutter incorporating an acoustic sandwich is positioned, and a non-structural concrete topping is then added to complete the floor.
Lloyds Building 1978-86, London Richard Rogers Arch 631
Main concrete columns
concrete bracket
‘Yokes’
U-Beams
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Lloyds Building 1978-86, London Richard Rogers Arch 631
Load Tracing
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By using beams with parallel sides and sharp arises Rogers emphasizes that the floor is a grid not a solid, coffered slab
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Soil and Foundation
• Constructed by Constain Group PLC• Pile foundation with pile caps supporting main columns• Over 300 piles, each 750 mm dia/ 26 meters deep• Diaphragm Walling and Cast-in-place Retaining walls along edges of site• Soil is mostly clay with a large deposit of sand on the north end of the site
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Service Towers :
The service towers consist of pre-cast concrete members, each designed as a “kit.” Each tower is tied to the main structure by a concrete connection at each floor.
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Lloyds Building 1978-86, London Richard Rogers Arch 631
Load Tracing
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Lloyds Building 1978-86, London Richard Rogers Arch 631
Lateral Load
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Deflections Bending Moments
Multiframe Analysis
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Lloyds Building 1978-86, London Richard Rogers Arch 631
Shear Diagram Loads
Multiframe Analysis
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Bibliography:
Books:Fairweather, Virginia, Tomasetti, Thronton. Expressing Structure: The Technology of Large-Scale Buildings. Basel: Birkhauser Publishers, 2004.
Lloyd’s List. Serving the World: The New Lloyd’s Building. London: Lloyd’s List, 1986.
Powell, Kenneth. Lloyd’s Building: Richard Rogers Partnership. London: Phaidon Press Limited, 1994.
Websites:http://architecture.about.com/od/greatbuildings/ig/Richard-Rogers-Partnership-/Lloyd-s-of-London.htm
http://www.lloyds.com/About_Us/The_Lloyds_building/Visiting_the_Lloyds_building.htm
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Thank You!
Keun- Young Park
Arch 631
Anjali Venkataiah
Deepen Dighe
Devang ladani
Daniel Haskovec
STRUCTURAL CASE STUDY