An experimental investigation of double chord HSS trusses

The results of a series of five large scale experiments on Warren trusses comprised of square HSS and utilizing the concept of a double chord are presented. The trusses were simply supported and loaded at their top chord panel points, thus simulating gravity loading. It was found that the bolted type, the back-to-back with overlap configuration, and the back-to-back with stiffening plate all sustained a loading that caused a member failure. The …