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Since 1957, DONN® brand suspension systems; In order to provide the most reliable systems with the highest lateral and torsional stiffness, it has set the industry standard using the strongest structural steel. In line with this commitment to quality, USG is able to measure and evaluate the seismic performance of these systems; University at Buffalo (SUNY), Civil, Structural and Environmental Engineering Department of Civil Engineering – Civil Engineering and Earthquake Simulation Laboratory (SEESL), University of California, Berkeley – Earthquake Engineering Research Center (EERC).
As a result of the tests carried out, DONN suspension systems; It has been proven to provide solutions above the standard according to the requirements of the International Construction Regulation (IBC), including categories D, E, F and C. USG is the only manufacturer working with two separate earthquake engineering laboratories to test the performance of their systems. Contractors and architects can rely on DONN suspension systems because seismic requirements are extremely important in design. Seismic testing generally focuses on the suspension system.