DESIGN OF SUPPORT/TRANSPORTATION SYSTEMS FOR SHIPS CONSTRUCTED ON HORIZONTAL BERTHS

Construction of hulls over a wide range of sizes is at present carried out predominantly on horizontal berths, while the use of the more conventional inclined building berths has been declining. The former arrangement simplifies inspection and assembly work, and the handling of hull sections. Horizontal berths also offer scope for the utilization of a wider variety of launching arrangements. However, further evaluation of optimization methods in this area is advocated, particularly the rigidity and accuracy of supports under the hull. Calculations relating to a sample of 4 ships show that the maximum bending of the hull on horizontal berths does not exceed 25 mm, but when operating the hydraulic jacks fitted to the supporting trolleys this figure reaches 150-200 mm. When a minimum number of supporting beams are used for a transfer operation hull sag does not exceed 12 mm, and maximum stress on peripheral hull members does not exceed 400 kg/sq. cm. Order from: BSRA as No. 46,909.

• Corporate Authors:

  Leningrad Shipbuilding Institute

  Ul Lotsmanskaya 3
  Leningrad,   USSR 
• Authors:
  • Matskevich, V D
  • Leizerman, V Y
• Publication Date: 1976

Media Info

• Features: References;
• Pagination: 5 p.

Subject/Index Terms

• TRT Terms: Bending; Berth utilization; Hulls; Hydraulic equipment; Shipbuilding; Stresses; Technological innovations
• Old TRIS Terms: Hull assembly; Hull bending; Hull construction; Hull stress; Hydraulic devices
• Subject Areas: Construction; Marine Transportation;

Filing Info

• Accession Number: 00170153
• Record Type: Publication
• Source Agency: British Ship Research Association
• Report/Paper Numbers: No. 108
• Files: TRIS
• Created Date: Mar 7 1978 12:00AM