Node Joint Fabrication in Fixed Offshore Production Platforms,

摘要

The extended life expectancy of the present generation of fixed offshore platforms depends upon the integrity of the nodal regions of the fabricated steel jacket and this has led to stringent material,fabrication and inspection standards in these critical areas. The resultant constraints placed upon the choice of steel from considerations both of formability and weldability are outlined,together with the background to the selection of welding consumables capable of producing joints with the enhanced levels of mechanical properties and freedom from defects demanded. Practical aspects of mode barrel fabrication and the assembly of complete nodal joints are discussed in detail.