US 12,304,600 B1
Method of assembling a tubular floating structure and its use
Henrik Stiesdal, Odense C (DK)
Assigned to Stiesdal Offshore A/S, Give (DK)
Filed by Stiesdal Offshore A/S, Give (DK)
Filed on Jan. 23, 2025, as Appl. No. 19/034,856.
Application 19/034,856 is a continuation of application No. PCT/DK2023/050203, filed on Aug. 17, 2023.
Claims priority of application No. PA 2022 00767 (DK), filed on Aug. 18, 2022.
Int. Cl. B63B 75/00 (2020.01); E04H 7/06 (2006.01)
CPC B63B 75/00 (2020.01) [B63B 2221/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for assembling a buoyancy module of a tubular floating offshore structure, the method comprising:
providing a first tubular member and a first stiffening ring for a first segment and a second tubular member and a second stiffening ring for a second segment, each of the first and second tubular members comprising a first edge and an opposite second edge;
for the first segment, providing the first stiffening ring lying flat and having an outer circumference larger than a circumference of the first edge of the first tubular member;
placing the first tubular member with its first edge onto the first stiffening ring within the outer circumference;
welding the first edge to the first stiffening ring from above;
for the second segment, providing the second stiffening ring lying flat and having an outer circumference larger than a circumference of the first edge of the second tubular member;
placing the second tubular member with its first edge onto the second stiffening ring within the outer circumference;
welding the first edge to the second stiffening ring from above;
turning both welded segments upside down so that their stiffening rings are facing upwards;
lifting one of the segments with the second edge of its tubular member onto the stiffening ring of the other of the segments; and
welding the second edge to the stiffening ring from above to form a double segment with one of the stiffening rings at a top of the double segment and with a downward facing second edge without a stiffening ring at a bottom of the double segment.