To investigate the structural behaviour of large-diameter spiral-welded steel tubes under bending, a full scale experimental program has been performed, consisting of thirteen 42-inch diameter, spiral-welded steel tubes with D/t ratios ranging between 65 and 120. Additionally, numerical studies have been conducted, using nonlinear finite element simulations. A model has been developed to simulate the performed tests, using the actual material properties and initial geometric imperfections obtained from the tested tubes. Finally, a parametric investigation has been performed that investigates the influence of initial geometric imperfections and presence of girth and coil connection welds on the bending behaviour of the considered tubes.
|Title of host publication||Proceedings of the International Colloquium on Stability and Ductility of Steel Structures|
|Subtitle of host publication||Timisoara, Romania|
|Editors||D. Dubina, V. Ungureanu|
|Number of pages||10|
|Publication status||Published - 2016|
|Event||The International Colloquium on Stability and Ductility of Steel Structures - Timisoara, Romania|
Duration: 30 May 2016 → 1 Jun 2016
|Conference||The International Colloquium on Stability and Ductility of Steel Structures|
|Abbreviated title||SDSS 2016|
|Period||30/05/16 → 1/06/16|
Gresnigt, N., van Es, S., Vasilikis, D., & Karamanos, SA. (2016). Strain-based design procedures for spiral-welded steel tubes in combined walls. In D. Dubina, & V. Ungureanu (Eds.), Proceedings of the International Colloquium on Stability and Ductility of Steel Structures: Timisoara, Romania (pp. 1-10). Wiley.