Section 1 General

101. Application

1. The requirements in this Chapter apply to Heavy lift vessels (hereinafter referred to as "ships" in this Chapter) intended for the lifting of heavy loads in oil drilling and production operations, off- shore construction and/or salvage operations, with a lifting capacity of 160 metric tons or above.

2. The vessels should comply with the requirements of this chapter in addition to Ch 1 to Ch 3.

102.

1.

Submission of Data

In general, in addition to the plans listed in Ch 2, Sec 2, the following plans, calculations and particulars are to be submitted.

2. Crane Plans and Data

(1) General arrangement, assembly plans and description temperature

(2) Dead, live and dynamic loads. Environmental loads Load swing caused by non-vertical lifts. Load due

structure.

(3) Maximum reactions and overturning moments

of operating procedure and design service including effects of wind, snow and ice.

to the list and/or trim of the vessel or

(4) Details of the principal structural parts, including crane pedestal, foundation and other crane

supporting structure

(5) Welding details and procedures

(6) Crane capacity rating charts

(7) Wire rope specifications

(8) Material specifications

(9) Details of heave compensation arrangements if applicable

(10) Where applicable, details of swing circle assembly, arrangement of hold-down bolts, size, ma- terial, grade and pretensioning together with method used for pretensioning

(11) Equipment for positioning during heavy weight lifting operations

3. Design Analysis

The following calculations are to be submitted.

(1) Calculations demonstrating operations.

(2) Calculations demonstrating

station during heavy weight

the adequacy of the vessel’s stability during heavy weight lifting

adequacy of propulsion power required for the vessel to maintain lifting operations.

(3) Calculations demonstrating strength of the crane and supporting structures.

4. Additional Data

The following items are also to be submitted.

(1) Plans of the electric installations of the crane

(2) Diagrams of electrical, hydraulic and pneumatic systems and equipment for power supply and control systems for the cranes

(3) Assembly plan showing principal dimensions of the crane and limiting positions of its movable parts

(4) Piping diagrams for ballast and/or anti-heeling systems

(5) Crane manual for each crane installed on board