E - Fixed Constructions – 02 – B
Patent
E - Fixed Constructions
02
B
61/8
E02B 17/02 (2006.01)
Patent
CA 1228738
ABSTRACT An offshore platform structure comprising a deck superstructure which is supported by at least three spaced apart inclined lower supporting columns extending convergingly upwards towards an intermediate structure and one or more upper columns extending upward from the intermediate structure supporting the deck superstructure. At least the lower supporting columns having varying diameter, the columns having their largest diameter in the area of the water line during the towing out of the platform structure from the construction site to its offshore location. Slipforming means for slipforming inclined, hollow columns of reinforced concrete, comprise a slipform platform including formwork which is supported by and may be lifted or lowered by means of a climbing rod system which is secured to the already cast, cured portions of the column. The formwork is suspended from the slipform platform by means of yokes and comprises inner and outer slipforms extending in the circumferential direction. The yokes are adjustable in the radial direction with respect to the slipform platform while the slipforms are adjustable in the tangential or circumferential direction with respect to each other. One of the slipform walls is radially adjustable with respect to the other. The slipforming means is especially suited to the slipforming of hollow, inclined columns having increasing and/or decreasing diameter.
439415
Einstabland Tomas
Opedal Torlak
Borden Ladner Gervais Llp
Ingeniýr F. Selmer A/s
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