Tension Bar Systems

Petersen is a quality assured UK manufacturer of stainless steel structural tie bar assemblies. Our manufacturing facility and experienced support team have an established track record of quality, cost and delivery on projects of all sizes.

Stainless steel tension bars, also known as stainless tension rods, stainless steel tie bars and stainless tie rods, are manufactured in the UK by Petersen. SBS-450 bar systems consist of a threaded 316 stainless steel tie bar terminated with fork clevis adjusters at each end. SBS-450 fork clevis ends and double head clevis pins are designed in accordance with BS5950-1:2000, EN 1993-1-11:2006 and EN 1993-1-8:2005 and are machined, not cast, from a high strength duplex stainless steel.

Petersen adjuster forks allow a generous amount of adjustment of +/- two times the bar diameter. After installation the 316 stainless tension bar can be rotated to set the correct length. The architectural tie bar system is locked using tapered lock cover nuts.

All bars are manufactured from specially drawn bar stock with rolled threads. Architectural bar systems are available in up to 6m single lengths, couplers can be used to span further.

Tension bars in swimming pool roof and ceiling trusses, window braces, ducting, lighting and slide hangers operate in a highly corrosive environment. We manufacture super duplex swimming pool tension bar systems from grades 32760 and 32550 ferrinox for use in these applications.

Nitronic 50 is a high tensile stainless steel permitting much greater loads for a given cross-section. Use of this grade reduces visual impact and most importantly self-weight. Nitronic 50 stainless steel tension bars are available in single lengths up to 100m and can be coiled for easy shipping. The Nitronic 50 stainless tension member is cold-headed and seats in a threaded 'nose'. The nose screws in to the SBS-450 fork clevis end allowing adjustment.