foerfarande foer aostadkommande av i roerformig knutpunkt i i fackverkskonstruktions pelare, saosom vid hoegsjoeplattformer foer borrning och production of av's olya.

摘要

PCT No. PCT/NO85/00056 Sec. 371 Date May 20, 1986 Sec. 102(e) Date May 20, 1986 PCT Filed Sep. 18, 1985 PCT Pub. No. WO86/01752 PCT Pub. Date Mar. 27, 1986.A method for providing a tubular node in framework truss structures, such as offshore platforms for oil drilling and production activities of the type consisting of interconnected legs and braces of steel tube elements. For formation of the transition between leg and brace in the node is utilized a blank of rolled plate steel, which is given the desired curved shape corresponding to the curvature of the leg. The blank is pressed or extruded in a suitable press tool formed with an outwardly extending brace stub at the desired angle, which brace stub is designed for welding to a complementary brace tubing in the framework. Thereafter, the blank with the brace stub is welded into the leg proper and constitutes a wall segment of the leg in the node.