The Deformation Capacity of Trusses with Concrete Filled Tubular Chords

A CFT truss, in which the chord members comprise concrete filled tubes [CFT], may have an excellent capacity to deform. In this paper, a prediction method for the deformation capacity of the truss is proposed both for monotonic loading and cyclically repeated loading. The latter is determined based on the energy dissipation capacity of CFT chords. The predicted deformation capacity of CFT trusses showed a good agreement with test results, and the capacity is comparable to that of full web steel members.