Manufactured locally

DonoBrace® is a patented product, manufactured at the Donovan Group Advanced Manufacturing facility in Whangarei, New Zealand.

DonoBrace® is also manufactured under license by Shearform, in Victoria, Australia and by Behlen in North America.

The DonoBrace® system has gone through a comprehensive independent testing and QA process to ensure that the system can achieve the stated capacities. 

 

Capacities

Product Nominal Size Design Capacities
(kN)
DB15 15mm 132
DB20 20mm 235
DB25 25mm 367

 

Design and Detailing Files

 

FAQs

A full report of the DonoBrace® Structural Tension Bracing Performance is available. Please get in touch if you would like to view the full report. 

The minimum yield stress of the bar used for design is 830MPa.

Yes.  A full report of the DonoBrace® Structural Tension Bracing Performance is available. Please get in touch if you would like to view the full report. 

The bolts should be tightened to "Snug Tight" in accordance with AISC recommendations.

The bracing end connection has been manufactured to suit the connection plate sizes shown in the Dimensional Information. (One plate size larger and one plate size lower may be used).  

The connection plates need to be specifically designed by an engineer. 

We suggest you contact your preferred coating supplier for specification relating to the specific environment of the application. We can provide a specification from our coating supplier if required. Please get in touch if you would like more information.

No, a standard nut or double should not be used to replace a nyloc nut. The nyloc nut is used to prevent the nut coming loose during dynamic loading and is a critical part of the system.

The bars are micro-alloyed with a rolled thread. The nuts and connectors have a machined thread. 

Standard design values as specified in AS4100 are considered appropriate for the DonoBrace® system. Although the material used in the brace sits outside of AS4100 standard specification for seismic-resisting elements, the behaviour of the material and brace system has been reviewed and tested for its equivalent performance. 

 

Get in touch

Contact us for more information about product features, ordering, and related queries.