Effects of state-of-the-art residual stress models on the member and local stability behaviour

Residual stresses have considerable effect on both the local and the member stability behaviour of steel structures. Previous studies have shown that the structural stability behaviour depends on both the distribution and the amplitude of the residual stresses. The residual stress distribution is affected by the cross-section geometry, the...

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...

Investigation of buckling behaviour of pipe sections including simplified girthweld geometry with miss-alignment

Submarine pipeline is an important part of offshore oil and gas projects for fluid transmission purpose. Installation of pipelines, especially in deep water, can induce rather severe loads to the structure and this can lead to the unforeseeable risks and challenges. During pipe laying by vessel and reel ship, the pipe bend in the vertical plan...

Tube-Cell combiwall

Quay walls are costly structures. The still growing sea transport market asks for more, bigger and more cost efficient quay walls. In this research, a new type of quay-wall is investigated: the ‘Tube-Cell Combi-Wall’. The Tube-Cell combi-wall consists of relative large diameter piles with flat sheet piles in between. The large diameter piles are...