Pinnacle has been appointed as the structural engineering consultant to assist in the development and structural engineering of a safe and reliable boat landing (boat landing) off the Dutch coast. The boat landing will be used by workers to get to and from the oil platform. The main engineering challenge was to install the boat landing in the existing jacket between the sea level and the "spider deck" of the platform. The boat landing had to be safely accessible from the vessel within a 2-meter tidal range and had to be able to be smoothly transferred to the spider deck via safe steps after berthing.
In addition, the structure had to be installed using a platform crane rather than an expensive jack-up barge. As with any offshore structure project, safety was paramount, and under no circumstances was the existing jacket structure to be drilled or welded. It also had to be installed safely and accurately in a single pass, with no rework on site. Once the design was complete, Pinnacle then had to create a set of fabrication drawings and provide them to the fabricator in the Netherlands.
Fixing clamps were an important factor in the design because they had to be easily installed and accessible from the front and had to fit within the required dimensional tolerances.
The lower clamps had to be installed within a very short time frame when the seawater level would be below the bottom of the clamps. Accuracy was also essential, and the challenge was that the new structure had to be constructed within design tolerances.
