Title: Process for reducing the stresses caused by the vertical bending of a boat on independent tanks installed therein

Abstract: A process for reducing the stresses in a vessel consisting of building a hull with a number of compartments and fitting into each an independent cargo tank for the storage of liquefied gas. Before the cargo tanks are fitted, the hull in the region of each compartment along the central transverse section thereof is subjected by ballasting to a predetermined vertical static bending moment in the absence of the tank, and thereafter each tank is installed in the hull while maintaining the predetermined vertical static bending moment so that the maximum stresses to which the tank will be subjected under different sailing conditions will be substantially reduced.

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Inventors: Torroja, Jaime (Las Arenas, ES)

Application Number: 689657
Filing Date: 1976-05-24
Publication_date: 1977-07-26
Assignee: Sener, Tecnica Industrial Y Naval S.A. (Las Arenas, ES)
Primary Class(es): 114/74R 114/125
Other Classes:
US Patent Ref:

3004509	Oct, 1961	Leroux	114/74.
3128375	Apr, 1964	Grimnes	114/125.
3828708	Aug, 1974	Gerwic, Jr. et al.	114/65.
3830181	Aug, 1974	Tornay	220/9.
3841269	Oct, 1974	Urruela	114/74.
3842775	Oct, 1974	Edwards et al.	114/74.
3922985	Dec, 1975	Hamilton	114/74.
3926134	Dec, 1975	Closner et al.	114/74.
3927788	Dec, 1975	Zinniger et al.	114/74.
3977350	Aug, 1976	Finsterwalder et al.	114/74.

Other Refs:
Primary Examiner: Blix, Trygve M.
Assistant Examiner: Butler, Douglas C.
Attorney: Fleit & Jacobson