13.1 Inner Bottom Plating........................................................ 42
13.3 Floors...............................................................................42
13.5 Longitudinal Girders.........................................................42
15 Higher-strength Materials ............................................................ 43
15.1 General............................................................................ 43
15.3 Inner Bottom Plating........................................................ 43
15.5 Center Girders, Side Girders, and Floors........................ 43
15.7 Bottom Girders in Self-unloading Vessels....................... 43
SECTION 5 Framing ..............................................................................................44
1 General ........................................................................................ 44
3 Scantlings..................................................................................... 44
5 Frame Spacing ............................................................................ 44
7 Bottom ......................................................................................... 44
9 Inner Bottom Longitudinals .......................................................... 45
11 Stringers and Webs ..................................................................... 45
11.1 Strength Requirements....................................................45
11.3 Proportions...................................................................... 46
11.5 Stiffeners and Tripping Brackets......................................46
13 Special Strengthening ..................................................................46
15 Topside Tunnel or Side Tank Structure ........................................46
17 Higher-strength Steel ...................................................................46
17.1 Section Modulus.............................................................. 46
17.3 Plating..............................................................................47
19 Struts............................................................................................ 47
SECTION 6 Watertight Bulkheads ....................................................................... 49
1 General......................................................................................... 49
3 Arrangement of Watertight Bulkheads .........................................49
3.1 Collision Bulkheads......................................................... 49
3.3 After Peak Bulkheads...................................................... 49
3.5 Machinery Space............................................................. 49
5 Chain Lockers ..............................................................................49
7 Construction of Watertight Bulkheads ......................................... 49
7.1 Plating..............................................................................49
7.3 Stiffeners..........................................................................50
7.5 Stringers and Webs......................................................... 50
7.7 Watertight Doors..............................................................51
7.9 Testing............................................................................. 51
9 Higher-strength Steel ...................................................................51
9.1 Section Modulus.............................................................. 51
9.3 Plating..............................................................................52
11 Construction of Screen Bulkheads (1 July 2017)..........................
52
ABS RULES FOR BUILDING AND CLASSING BULK CARRIERS FOR SER
VICE ON THE GREAT LAKES •
2022
14