
Since the early 1980s, the architectural range of tension bars have grown in popularity providing designers an opportunity to offer contemporary designs and solutions.
The lighter carbon and stainless bars are used in white weight canopy’s facades and suspended structures the high strength bars provide support for bridge decks in bolstering bridges the good fatigue properties of the bar an important design feature in road tram pedestrian bridges alike.
Benefits of Macalloy
Tension Bars.
- Fatigue resistant rolled thread
- Available in 460N/mm2, 520N/mm2 and now a 550N/mm2 strength for both carbon and stainless
- All products compliant with ETA21/0053 and CE compliant
- Bars and fittings can be supplied primed or painted and/or hot dipped galvanised to BS1461:2009
- Bespoke fittings can be designed to suit customer applications
- Technical literature is available with design calculations and loadings to EC3
- Macalloy engineers are always available to help


In the 1980s Sir Norman Foster was commissioned by the French car company Renault to design a hightech building for their UK operations the brief was to maximise the internal space by hanging the roof using external bracing the building now a grade II listed building went on to win numerous design awards and began a trend in wide span structural design using Macalloy Tension Structure products.
Macalloy tension bar range includes a 460N/mm2, 520N/mm2 and the new 550N/mm2 [ETA pending] available in carbon and stainless steel.
All systems are 9001 accredited and approved to European technical approval ETA21/0053, providing the CE certification. Carbon bars can be supplied primed ready for paint or hot dipped galvanised to BS EN 1461 – 2009 all fittings (forks, pins, turnbuckles, couplers and lock covers) are supplied with a galvanised coating.
Fittings are designed to give the maximum amount of flexibility and adjustment, special fittings can be designed to suit customer requirements.
Cast fittings are UT and MPI tested in accordance with European technical approval – ETA21/0053.
Technical literature is available with design calculations and loadings to design code EC3 our technical team is always available to assist with specification, installation and design.
Contact a Macalloy agent today to discuss all things tension rods and architectural structure bars.
Our Projects
University of Minnesota, Minneapolis, USA
View ProjectUniversity of Canterbury Strongfloor, Christchurch, New Zealand
View ProjectWind Turbine Foundation Anchor Bolt, Uljabuouda, Sweden.
View ProjectQueen Victoria Shopping Centre, Sydney, Australia.
View ProjectEsplora Interactive Science Museum, Kalkara, Malta.
View ProjectDubai Metro Station, Dubai, UAE.
View ProjectCenter Parcs, Longford Fores, Ireland.
View ProjectArc by Crown Apartments , Sydney, Australia.
View ProjectGibson Hotel in Point Village, Dublin, Ireland.
View ProjectClarke Quay, Singapore.
View ProjectThe Art Institute of Chicago, Chicago, USA.
View ProjectUrban Oasis, London, UK.
View ProjectInternational Spy Museum, Washington,DC, USA.
View ProjectThe National Library , Stavros Niarchos Foundation Cultural Center ( SNFCC) Athens, Greece.
View ProjectWaterloo Station, London, UK
View ProjectThe Renault Distribution Centre, Swindon, UK
View ProjectNew Witry Bridge, Reims , France
View ProjectThe Green Street Pedestrian and Bicycle Bridge, Salem, USA
View ProjectOkavango Delta Bridge, Mohembo, Botswana
View ProjectHammersmith Flyover, London
View ProjectViaducto Marin UTE, Arlaban, Spain
View ProjectTroja Bridge, Prague
View ProjectValiyazheekkal, Kerala India Bridge
View ProjectRegents Park Bridge, Johannesburg, South Africa
View ProjectWainwright Arch Bridge, Blackburn
View ProjectPont Shuman, Lyon, France
View ProjectBrayford Footbridge, Lincoln
View ProjectSofia Bridge, Sofiero Palace, Helsingborg, Sweden
View ProjectKL8 Footbridge, Poznan, Poland
View ProjectNavia River Viaduct, Asturies, Spain
View ProjectJohn Paul II Bridge, Pulaway, Poland
View ProjectYavuz Sultan Selim Bridge, Istanbul , Turkey
View ProjectIzmir Airport, Turkey
View ProjectQuebec City Jean Lesage International Airport, Canada
View ProjectNiagara Falls International Airport, New York USA
View ProjectBirmingham University, Dubai
View ProjectMunich International Airport, Germany
View ProjectDubai International Airport, UAE
View ProjectKuwait International Airport, Farwaniya Kuwait
View ProjectPorto International Airport, Portugal
View ProjectSingapore Changi Airport, Changi, Singapore
View ProjectBratislava Airport Bratislava, Slovakia
View ProjectMalaga Airport Spain
View ProjectAlicante Airport Spain
View ProjectAtrio Villach, Villach, Austria
View ProjectFrankfurt Exhibition Centre, Frankfurt, Germany
View ProjectThe Max Aicher Arena, Inzell, Germany
View ProjectBanff Elementary School, Alberta, Canada
View ProjectThe New Robert Burns Birthplace Museum, Scotland
View ProjectBently Heritage Distillery, Minden, Nevada, USA
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