Modelling compressive membrane action and geometrical nonlinearity in one way concrete slabs

Increased traffic loads and ageing of concrete bridges and overpasses in the Netherlands make it necessary to reassess these existing structures. Consequently, the current condition and capacity of many concrete structures need to be evaluated. Residual capacity could be discovered during reassessments of concrete slabs due to a phenomenon...

Re-use of immersed tunnels: An innovative method for recovering, regenerating and reusing immersed tunnels by temporarily re-floating

Immersed tunnels, located in waterways, could be a limiting factor in the dredging in waterways. This dredging is required since cargo vessels draught increased the past decades. In this thesis a new method is defined for temporarily, effectively, re-floating immersed tunnels. With this method extra risks arise, for these risks’ measures are...

Influence of various boundary conditions on local buckling of steel tubular piles: Effects of restraints, imperfections and residual stresses

The main focus of this thesis is the influence of different real boundary conditions on the failure mechanism of local buckling of steel tubular piles. The research was started with the theoretical method of describing boundary condition by specifying the degrees of freedom per boundary condition. The method makes use of the radial, meridional...

Submerged Floating Tunnels: The Design of the End Joint

The Submerged Floating Tunnel (SFT), also called an Archimedes Bridge, is a state of the art solution for crossing deep and large waters. The concept of a SFT has been around for many decades. However, none has still been build up till today. A general literature study showed a number of ‘blank spots’ which still need to be researched before...