img(height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=2939831959404383&ev=PageView&noscript=1")

Beauty, purity and muscularity

Words:
Hanif Kara

Hanif Kara reveals why he is so seduced by RSHP’s Leadenhall Building

In association with

Towers evoke a response in society that mixes optimism, progress, pride, bemusement, bafflement and a touch of awe like no other typology. As a structural engineer, I will surprise no-one by picking one of my two favourite ‘hip not bling’ towers – Leadenhall Building and St Mary’s Axe – as my icon. My choice is Leadenhall, both for the purity of its expression of steel and a profile that avoids crowding the sky – while beautifully exposing the construction method.

It delivers a lot (1 million ft2) with an inviting public realm and technical indexes beyond the conventional, but it’s the muscular steelwork I most adore, delivering a structural order with a megaframe where each floor steps 750mm. This took precision of design, fabrication and planning to another level.

 

Eastern profile of The Leadenhall Building.
Eastern profile of The Leadenhall Building. Credit: Richard Bryant, Courtesy of British Land/Oxford Properties

My early days on oil rigs give me a good measure of the gigantic forces the engineer has dealt with, in particular the design of the connections which will have exhausted the best brains at Arup, which were continually directed by the surgical scalpel of Graham Stirk’s relentless talent of working from the detail out. Contractor Laing O’Rourke and steelwork contractor Severfield both clearly and passionately delivered. 

‘Muscular’ steelwork in the view  from Level 45.
‘Muscular’ steelwork in the view from Level 45. Credit: Paul Raftery

Engineers talk about the additional structural optimisation that would have been possible if the primary bracing had faced the opposite way, but to me that is minor conversation. Guided throughout by British Land construction director Richard Elliot, the final result is almost an industrial product, a compelling masterpiece that will be a springboard for us all in many ways. 


 

Latest

Practice founders Katerina Dionysopoulou and Billy Mavropoulos on working with specialists in concrete, architectural metalwork, bricks and glass made from mussel shells

Katerina Dionysopoulou and Billy Mavropoulos on working with specialists in concrete, metalwork, bricks and glass

Biophilic glazing system with distinctive polygon patterns found in nature marks out new Royal College of Physicians northern headquarters

Voronoi cladding marks out Royal College of Physicians northern HQ

Warm, robust and easy to keep clean were key requirements for a young family’s new kitchen. West Fraser’s SterlingOSB Zero fulfilled all that – and most importantly fitted their very tight budget

Warm, robust, easy to keep clean - a cheerfully affordable kitchen

Steel is resilient, but fire still poses a risk. Specifying a frameless encasement system from a single manufacturer can help keep compliance and installation simple

Sourcing a frameless encasement system from a single manufacturer makes sense

A new BBA-certified membrane system is providing specifiers with a hydro-reactive and self-healing method of protecting underground structures

Discover the new hydro-reactive and self-healing product that protects underground structures