UrbanScraps: A local steel cycle for maritime manufacturing in South-Holland by 2050

Mankind is exhausting natural resources. Therefore, the need to transform the linear material flows towards circular chains is increasing. Steel is a material that is produced and used globally and has high potentials for recycling. However, in the maritime sector, steel is currently barely recycled, let alone reused in a more direct way....

Embarking on a Circular Voyage: South Holland as the leading Creative Maritime Region through cross-pollination of Industry, Knowledge, and Society

The Netherlands has set the ambitious goal to have a fully circular economy by 2050. The Port of Rotterdam (PoR), the largest and busiest port in Europe, has strong potential to become a future circular hub. The PoR has been a major player in the seaport industry for centuries with, among others, a strong logistics sector and a robust...

Parametric design of steel orthotropic bridge decks for fatigue calculations

Currently the transport & planning (transport & logistics) group from Royal HaskoningDHV makes their pre-design for steel orthotropic bridge decks by using rules of thumb and experience. In the final design-stage this is verified whereby the force distribution is checked with the help of 3D finite element software (FEM). In this stage...

General formulation of equivalent moment factor for elastic lateral torsional buckling of slender rectangular sections and I-sections

In the past decades, great progress has been made in analyzing lateral torsional buckling of slender beams. The phenomena has been accurately described by differential equations, closed form solutions are available for specific cases and the solution for any load and any boundary condition can be obtained by finite element analysis. Timber and...

Local buckling of sand-filled steel tubes for combined walls

Bending behaviour of steel tubes has been examined in many research projects through the years, especially for empty ones. Also the infill and pressure effect in the tubes has been elaborately investigated but not much has been done on the effect that the sand infill has on the bending of the tubes. Combi-wall tubes are filled with sand during...