Floating Dry Dock Doubles as Launching Platform

by Paul S. Crandall, (F.ASCE), Pres.; Crandall Dry Dock Engrs., Inc. Cambridge, Mass.,


Serial Information: Civil Engineering—ASCE, 1975, Vol. 45, Issue 5, Pg. 74-76


Document Type: Feature article

Abstract:

Though usually constructed by shipyards, floating drydocks are civil engineering structures. Dry docks that float have one important advantage over their non-floating relatives�� they make possible launching a newly built ship in a completely controlled manner. When the dry dock is the launching platform the ship can be assembled in a horizontal attitude in a dry environment well above sea level and then launched at the attitude assumed by the vessel when free floating. Similarly, a ship can be retrieved by the dry dock in the same manner. Thus, no undue stresses or strains are placed on the vessel or the dry dock.

Subject Headings: Shipyards | Ships | Structural engineering | Stress strain relations | Strain | Sea level

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