The structural engineering of the Leadenhall Building, London

Author: D. Eley (Expedition Engineering) and N. Annereau (Arup)

Date published

1 April 2018

Price

Standard: £9 + VAT
Members/Subscribers: Free

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The structural engineering of the Leadenhall Building, London

The structural engineering of the Leadenhall Building, London
The Structural Engineer
Author

D. Eley (Expedition Engineering) and N. Annereau (Arup)

Date published

1 April 2018

Author

D. Eley (Expedition Engineering) and N. Annereau (Arup)

Price

Standard: £9 + VAT
Members/Subscribers: Free

The Leadenhall Building is a 224m high commercial office tower in the City of London, built by Laing O'Rourke for British Land and Oxford Properties. It is commonly known as the ‘Cheesegrater’ because of its distinctive wedge-shaped profile and steel diagrid structure.

The engineering design was developed by Arup in collaboration with architect Rogers Stirk Harbour + Partners (RSHP). The architecture is guided by the principles of openness, flexibility and legibility, which were the hallmark of early Rogers and Arup projects, most notably the Pompidou Centre in Paris and the Lloyd's building in London.

A key aspiration from the outset was for the building to clearly express its engineering systems. Stability is provided by a fully exposed, external braced tube. Temperature loadings had to be considered carefully and led to some unusual design features. Several construction-led innovations were employed, including a solid precast floor system and a core built from volumetric prefabricated steel modules with integrated services. Significant permanent horizontal movements occurring during construction were successfully reversed using an innovative ‘active alignment’ approach.

The multidisciplinary engineering systems, and the collaborative digital methods used to deliver the project, have been described previously. This paper presents a more detailed description of the structural design, with a focus on some of the more unusual engineering solutions.

Additional information

Format:
PDF
Pages:
11
Publisher:
The Institution of Structural Engineers

Tags

Project Focus Issue 4

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