EuroWire January 2020

Products

EFC’s utility pole fastening solution

EFC of engineered fasteners, has announced the approval of Sherex Fastening Solutions’ Large Size rivet nuts for use in steel utility poles by a leading energy company. The approval is in accordance with the speci cation Tubular Steel Pole Transmission Line Structures SES-PD- 027. The speci cation covers the minimum requirements for the design, drawings, material, fabrication, welding, coating, inspection and delivery of tubular steel pole structures. Sherex Large Size rivet nuts eliminate the welding process and reduce the number of components for installation. They also allow for a safer, one-handed installation of the step bolts in the eld. Paul Musgrove, industrial and distri- bution sales manager, said: “This is a International, a supplier

▲ Large Size rivet nuts for use in steel utility poles from EFC

out resistance for pole structures. It is thought the rivet nut will serve other industries including automotive, truck, agriculture, heavy equipment, rail and HVAC.

signi cant cost savings for pole and tower manufacturers and we are excited to bring this product to the market.” The new rivet nuts exceed application performance and safety requirements, including maximum retention in breglass material and increased spin

EFC International www.efc-intl.com

German discount supermarket chain Lidl has built its new headquarters on a 4.6ha area with a gross oor area of 130,000m 2 in Heilbronn, Germany. The project involved the construction of an o ce building, meeting rooms, a reception facility, cafeteria, underground parking facilities, tness centre, logistics facilities and outdoor parking facilities. Lidl headquarters – a Lindapter case study

A hot dip galvanised (HDG) nish was also speci ed for the girder clamps to provide a high level of corrosion protection. The decision to use Lindapter type A girder clamps was in uenced by independent technical accreditations, which include the CE mark (ETA-13/0300), TÜV and Lloyd’s Register approvals. Secondary steel sections were xed onto the existing concrete façade in preparation for the T-shaped brackets to be installed. The brackets were connected to the steel sections using Lindapter type A girder clamps through the end plates in a four-bolt con guration. Installation was quick and easy as each bolt is simply inserted into the pre-drilled holes with the type A on one end and the nut on the other. The recessed top of the clamp holds the bolt captive while the nut is tightened with a torque wrench to the recommended tightening torque. This arrangement provided the necessary stando distance from the original structure and allowed the large cladding panels to be attached to the other end of the T-shaped brackets to complete the installation. Lindapter type A girder clamps provided a drilling- and weld- free connection on-site that was quick and easy to install. The clamps are fully adjustable, which gave the contractor the ability during installation to manoeuvre the brackets into their nal positions before fully tightening them. Bene ts of the type A: • Recessed top holds the bolt captive while the nut is tightened • Fully adjustable on-site to provide an easy installation • Supports up to 78.8kN tensile in four-bolt con guration • HDG nish o ers a low-maintenance solution • CE mark (ETA-13/0300), TÜV and Lloyd’s Register approvals

Part of the development included a requirement for a façade sun protection cladding system for the multi-storey sta car park. Main contractor Leonhard Weiss sub-contracted this building element to Colt International, a specialist cladding designer and installer. The challenge was to nd a suitable method of connecting the cladding system to the steel structure on the car park, and one that was easy to install. The engineers at Colt International designed a T-shaped steel bracket with an end plate incorporating four pre-drilled holes. Lindapter type A girder clamps with M12 bolts were speci ed for the end plate connection to achieve the required tensile resistance and safe working load. ▲ Cladding panels tted by Colt International on the new Lidl headquarters in Germany

Colt International www.coltinfo.co.uk

EF 11/77

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January 2020