I. Scantling Particulars

SCANTLING CALCULATION
I. SCANTLING PARTICULARS
Length Overall (LOA) = 63 M
Length Between Perpendicular (L) = 61 M
Breadth (B) = 13 M
Draft (d) = 2.5 M
Depth(D) = 3.6 M
II. SCANTLING LENGTH (L)

L = LOA
63 x 97
100
L = 61.11 M
BREADTH (B)
B = 13 M
SCANTLING DEPTH (D)

D = 3.6 M
DRAFT (d)
d = 2.5 M
SECTION 3: SHELL PLATING
FRAME SPACING
REFERENCE:PRS RULES FOR THE CONSTRUCTION AND CLASSIFICATION OF STEEL VESSELS
CHAPTER E,SECTION 7,P.85
1
s = 720 ( L / 100 )¼ mm
s = 720 ( 61 / 100 )¼ mm
s = ### mm
2
s = 2 L + 480 mm
s = 2 61 + 480 mm
s = 602 mm
Adopt 558.8 millimeters for designed used
BOTTOM SHELL AND BILGE STRAKE

b = 900 + 3.5 L mm
b = 900 + 3.5 61 mm
b = 1113.5 mm
Adopt 1219.2 mm for designed used
The thickness of the keel is not less than to be
THICKNESS OF THE KEEL PLATE

t = 0.1 L + 5 mm
t = 0.1 61 + 5 mm
t = 11.1 mm
11.1 mm or 7/16 inch for design used that must higher
TRANSVERSE BOTTOM FRAMING

CHAPTER E,SECTION 3,P.55 √
t = 0.0063 s d + 2
t = 0.0063 600 2.121
t = 8.0186 mm
7.9375 mm or 5/16 inch for design used that must higher
(ROUND OFF)
LONGITUDINAL BOTTOM FRAMING

1 s ( L + 170 ) mm
t = 4450
t = 558.8 61 + 170 mm
t = 4450
t = 5.8724 mm
2
t = 0.1 (L + 2) mm
t = 0.1 61 + 2 mm
t = 6.3 mm
Adopt 6.35 mm or 1/4 inch for design used
THICKNESS OF BOTTOM SHELL PLATING (INCLUDING SIDE SHELL PLATING)

√(𝑆/600)
FOR 0
t = ( 0.05 L + 5) mm
t = 0.05 61 + 5
mm
t = 8.05 mm
7.9375 mm or 5/16 inch for design used (standard)

(ROUND OFF)
SIDE SHELL AND SHEERSTRAKE
THICKNESS OF SIDE SHELL PLATING WITHIN 0.4L AMIDSHIPS

t = 0.0833 L + 3.5 mm
t = 0.0833 61 + 3.5 mm
t = 5.373 mm
THICKNESS OF SIDE SHELL PLATING

t = 0.05 L + 5 mm
t = 0.05 61 + 5 mm
t = 8.05 mm
(ROUND OFF)
WIDTH OF SHEERSTRAKE
b = 870 + 4.5 L mm
b = 870 + 4.5 61 mm
b = 1144.5 mm
Adopt 1200 mm for designed used
SECTION 4: DECKS
THICKNESS OF STRENGTH DECK PLATING


t = 0.05 L + 5 mm
t = 0.05 61 + 5 mm
t = 8.05 mm
(ROUND OFF)
STRINGER PLATES
BREADTH OF STRINGER PLATES

b = 6.8 L + 500 mm
b = 6.8 61 + 500 mm
b = 914.8 mm
THICKNESS OF STRINGER PLATES

t = t ( thickness of strength deck plating) x 1.35

mm
t = 8.05 x 1.35 mm
t = 10.868 mm
THICKNESS OF LOWER DECK PLATING

THICKNESS OF SECOND DECK PLATING OUTSIDE LINE
t = 0.025 L + 5.5 mm
t = 0.025 61 + 5.5 mm
t = 7.025 mm
THICKNESS OF SECOND DECK PLATING INSIDE LINE

t = 0.02 L + 5 mm
t = 0.02 61 + 5 mm
t = 6.22 mm
THICKNESS OF THIRD DECK PLATING OUTSIDE LINE

t = 0.022 L + 5 mm
t = 0.022 61 + 5 mm
t = 6.342 mm
THICKNESS OF THIRD DECK PLATING INSIDE LINE

t = 0.02 L + 5 mm
t = 0.02 61 + 5 mm
t = 6.22 mm
NOTE: NO NEED TO ADJUST THE SPACING
THICKNESS OF PLATFORM DECK PLATING

t = 0.02 L + 5 mm
t = 0.02 61 + 5 mm
t = 6.22 mm
SECTION 6: DOUBLE BOTTOM
DEPTH OF CENTER GIRDER

h = L + 42 d + 530 mm
h = 61 + 42 2.5 + 530 mm
h = 696 mm
THICKNESS OF CENTER GIRDER

a.) for 0.4 L amidships
t = 0.065 L + 5.5 mm
t = 0.065 61 + 5.5 mm
t = 9.465 mm
b.) for 0.1 L at ends
t = 0.045 L + 5.5 mm
t = 0.045 61 + 5.5 mm
t = 8.245 mm
SECTION 6: DOUBLE BOTTOM
CENTER GIRDERS
h = L + 42 d + 530 mm
h = 61 + 42 2.5 + 531 mm
h = 697 mm
THICKNESS OF CENTER GIRDER


t = 0.065 L + 5.5 mm
t = 0.065 61 + 5.5 mm
t = 9.465 mm

t = 0.045 L + 5.3 mm �^2
�^2
t = 0.045 61 + 5.3 mm
t = 8.045 mm
DUCT KEELS
SECTION MODULUS
w = 22 s d cm³
w = 22 0.5588 2.5 0.76 ² cm³
w = 17.752 cm³
TRANSVERSE FRAMING -THICKNESS PLATE FLOORS

�^2
t = 0.03 L + 5 s + 2.6
t = 0.03 61 + 5 0.5588 + 2.6
t = 7.224 mm
SECTION MODULUS OF STIFFINERS

CHAPTER E,SECTION 6,P.77 √ℎ
w = 5.5 s h cm³
w = 5.5 0.5588 3.9 0.76 cm³
w = 9.11 cm³
PLANE BULKHEAD PLATING
THICKNESS OF THE PLANE WATERIGHT BULKHEAD

CHAPTER E,SECTION 11,P.118 �_1
t = 3.2 s + 2.3 mm
t = 3.2 0.5588 1.685 + 2.3 mm
t = 5.31 mm
SECTION MODULUS OF BOTTOM FRAMES OF BRACKET FLOORS


w = ( 15 2.5 ) sd cm³
w = 15 2.5 2.5 8.7313 cm³
w = 76.398 cm³
TRANSVERSE FRAMING-INNER BOTTOM PLATING AND MARGIN PLATE

t = 0.04 L 5 s + 2.1 mm
t = 0.04 61 5 0.5588 + 2.1 mm
t = 8.9174 mm
for 0.4 l amidship but not is less than 6mm
t = 0.055 L + 5.8 mm
t = 0.055 61 + 5.8 mm
t = 9.155 mm
LONGITUDINAL FRAMING - BOTTOM GIRDERS

h = L + 42 d + 530 mm
h = 61 + 42 0 + 530 mm
h = 591 mm
The thickness of the center girden is not to be less than
t = 0.065 L + 5.5 mm
t = 0.065 0 + 5.5 mm
t = 5.5 mm

t = 0.045 L + 5.5 mm
t = 0.045 0 + 5.5 mm
t = 5.5 mm
LONGITUDINAL FRAMING-BOTTOM LONGITUDINAL

STANDARD SPACING OF BOTTOM LONGITUDINAL
1
s = 2.3 L + 550 mm
s = 2.3 61 + 550 mm
s = 690.3
2
s = 2 L + 510 mm
s = 2 61 + 510 mm
s = 632
3
s = 720 ( L / 100 )^¼ mm
s = 720 61 / 100 )^¼ mm
s = ### mm
Adopt 558.8 millimeters for designed used
SECTION MODULUS OF BOTTOM LONGITUDINAL

W = 11.5 C s d ɭ²
W = 11.5 1 0.632 2.5 1.21
W = 21.986 cm³
SECTION MODULUS OF INNER BOTTOM LONGITUDINAL

W = 21.986 x 85%
W = 18.688 cm³
LONGITUDINAL FRAMING - THICKNESS INNER BOTTOM PLATING

for 0.4L amidship but is not less than 6mm

t = 0.04 L 5 s + 2.1 mm
t = 0.04 61 5 0.632 + 2.1 mm
t = 9.8104 mm
For machinery spaces

t = 0.055 L + 5.8 mm
t = 0.055 61 + 5.8 mm
t = 9.155 mm
THCKNESS OF THE MARGIN PLATES

t = 0.04 L 5 s + 2.1 mm
t = 0.04 61 5 0 + 2.1 mm
t = 2.1 mm
for 0.4 l amidship but not is less than 6mm
t = 0.055 L + 5.8 mm √
t = 0.055 61 + 5.8 mm
t = 9.155 mm
SECTION 7 SIDE FRAMING
MAIN FRAMES
SECTION MODULUS OF MAIN FRAMES

w = C Cı s d ɭ² cm³
w = 6.0158 1 0.5588 2.5 1.82² cm³
w = 27.838 cm³
Coefficient
C = 2 + d/D x 0.65
1.45 D/ ɭ
C = 2 + 2.5/ 3.6 x 0.65
1.45 1.043
C = 6.0158
Cı = 1.08 0.01 D
Cı = 1.08 0.01 3.6
Cı = 1.044
FRAMES IN TWEEN DECKS AND SUPERSTRUCTURE

C = 0.7 + 4 (d / D)
C = 0.7 + 4 2.5 / 3.6
C = 3.478 cm³
I.I LOWER TWEENDECK

W = C Cı S d ɭ D cm³
W = 3.478 1.25 0.5588 2.5 2.6 1.897 cm³
W = 29.959 cm³
I.II SUPERSTRUCTURE SPACES

W = 3.478 1.25 0.5588 2.5 2.3 1.897 cm³
W = 26.50 cm³
II.I UPPER TWEENDECK SPACES BELOW SUPERSTRUCTURE

W = 3.478 1 0.5588 2.5 2.6 1.897 cm³
W = 23.97 cm³
II.I UPPER TWEENDECK SPACES BELOW SUPERSTRUCTURE

W = 3.478 1 0.5588 2.5 2.3 1.897 cm³
W = 21.20 cm³
III.I UPPER TWEENDECK SPACES OUTSIDE THE SUPERSTRUCTURE

W = 3.478 0.95 0.5588 2.5 2.6 1.897 cm³
W = 22.77 cm³
III.II UPPER TWEENDECK SPACES OUTSIDE THE SUPERSTRUCTURE

W = 3.478 0.95 0.5588 2.5 2.3 1.897 cm³
W = 20.14 cm³
III.II UPPER TWEENDECK SPACES OUTSIDE THE SUPERSTRUCTURE

W = 3.478 0.8 0.5588 2.5 2.6 1.897 cm³
W = 19.17 cm³
IV.I IN POOP
W = 3.478 0.7 0.5588 2.5 2.3 1.897 cm³
W = 14.84 cm³
IV.II IN POOP
W = 3.478 0.7 0.5588 2.5 2.6 1.897 cm³
W = 16.777 cm³
V.I IN BRIDGE
W = 3.478 0.6 0.5588 2.5 2.3 1.897 cm³
W = 12.721 cm³
V.I IN BRIDGE
W = 3.478 0.6 0.5588 2.5 2.3 1.897 cm³
W = 12.721 cm³
SECTION MODULUS OF WEB FRAMES

W' = 0.2 n C W
W' = 0.2 1 4.4 27.838
W' = 24.497 cm³
SECTION 8 DECK FRAMING
WEATHER STRENGTH DECK

h = 0.0072 L + ( d / )
h = 0.0072 61 + 0.7 0.21 m
h = 0.929 m
FORECASTLE DECKAND WEATHER STRENGTH DECK FORWARD OF 0.075 FROM F.P

h = 0.929 + 20%
h = 1.1292 m
FORECASTLE DECKAND WEATHER STRENGTH DECK BETWEEN OF 0.075 FROM F.P

h = 0.929 + 10%
h = 1.029 m
DECK CARGO AREA OF WEATHER STRENGTH DECK

h = 0.929 + 0.3
h = 1.229 m
DECKS CARRYING HANGING MEAT CARGO
h = 0.929 + 0.55
h = 1.479 m
THE LOWER DECKS .PLATFORMDECKS OR DECK BELOW SUPERSTRUCTURE DECK F

h = 0.0072 L + ( d / )
h = 0.0072 61 + 0.7 0.21 m
h = 0.929 m
Adopt 1 m for designed used

The same as the required by water head of the weather strength deck but not gr
STRENGTH DECK IN A WAY OF DECK HOUSES FOR ACCOMODATION OR STORE SPA

h = 0.0072 L + ( d / )
h = 0.0072 61 + 0.7 0.21
h = 0.929 m
SHORT BRIDGE DECK, POOP DECK AND TOP OF FIRST TIER HOUSES
h = 0.0072 L + ( d / )
h = 0.0072 61 + 0.7 0.21
h = 0.9292
h = 0.929 x 80%
h = 0.7434 m
DECKS ABOVE THE SUPERSTUCTURE DECK OR ABOVE THE TOP FIRST TIER DECKH
h = 0.0072 L + ( d / )
h = 0.0072 61 + 0.7 0.21
h = 0.9292
h = 0.929 x 60%
h = 0.5575
SECTION MODULUS DECK BEAMS

W = C s h ɭ² cm³
W = 6.67 6.5 0.929 1.83² cm³
W = 130.52 cm³
SECTION MODULUS OF DECK GIRDERS

W = C b h ɭ² cm³
W = 6.2 6.5 0.929 1.83² cm³
W = 125.41 cm³
SECTION MODULUS OF HATCH GIRDERS (INCLUDING COAMIMGS) �^2

W = 1.6 C h b ɭ² cm³
W = 1.6 6.2 0.929 1.8 1.83 cm³
W = 30.363 cm³
DECK LONGITUDINAL (LONGITUDINAL FRAMING)

W = C s h ɭ² cm³
W = 18.062 0.929 0.929 2² cm³
W = 62.380 cm³
Coefficient
C = k L + b
C = 0.042 61 + 15.5
C = 18.062
DECK TRANSVERSE
W = 7 S h
W = 7 3.5 0.929 3.3489
W = 76.239 cm³
SECTION MODULUS OFC TWEENDECK LONGITUDINAL

W = C s h ɭ² cm³
W = C 3.5 0.929 2 cm³
SECTION MODULUS OF STRENGTH DECK OR TWEENDECK TRANSVERSE

W = 7 S h ɭ² cm³
W = 7 3.5 0.929 ɭ² cm³
STRENGTH DECK
for ships having one continous deck
REFERENCE:PRS RULES FOR THE CONST
where:
= ( L
= 61
= 0.146
Z =
Z = 0.146
Z = 8.438
D
B +
13 +
0.0244
TION OF STEEL VESSELS 2017
where:
L = 61 m
where:
L = 61 m
L = 61 m
s = 600 mm
d = 2.5 m
TION OF STEEL
√(𝑑/𝐿) VESSELS 2017
√(2.5/61)
where:
L = 61 m
s = 558.8 mm
d = 2.5 m
HELL PLATING)
√(𝑆/600)
FOR 0.075 FROM THE ENDS.
√(600/600)
where:
L = 61 m
where:
L = 61 m
where:
L = 61 m
where:
L = 61 m
where:
L = 61 m

where:
L = 61 m
where:
L = 61 m
where:
L = 61 m
where:
L = 61 m
where:
L = 61 m

�^2
where:
L = 61 m m
0.76 m m
s = 0.5588 m m
mm where: �^2
mm L = 13 m
s = 0.5588 m
√ℎ=
where:
L = 61 m
0.76 mm
s = 0.5588 m

�^2
where: �^2
1.685
where:
ɭ¹ 2.5
sd 1.397
GIN PLATE
where:
L= 61
where:
L = 61 m
d= 2.5 m

√
√
𝐷�
0.21 m
RD OF 0.075 FROM F.P

𝐷�
𝐷�
EN OF 0.075 FROM F.P
𝐷�
𝐷�
PERSTRUCTURE DECK FOR ACCOMODATION OR STRORES SPACES

0.21 m
𝐷�
ength deck but not greater than 1m
DATION OR STORE SPACES

0.21
HOUSES
0.21
TOP FIRST TIER DECKHOUSES

0.21

RANSVERSE
ng one continous deck: A = �_1

�
RULES FOR THE CONSTRUCTION AND CLASSIFICATION OF STEEL VESSELS 2017
R E,SECTION 4,P.60
/ � 75 ) ^ 4/3
/ � 75 ^ 4/3
�
L/D ( d + � 0.015 L )
16.94 2.5 + 0.015 61
�_1= �𝑧−�
𝐴_0/�
0.2
(𝑡_0+0.2 𝐴_0/�)
3.6
0.2 674.05 mm
SECTION MODULUS OF BOTTOM LONGITUDINAL
W = 21.9857 cm³
FRAME SPACING = 558.8 mm

55.88 cm
22 inch
LONGITUDINAL BOTTOM FRAMING
THICKNESS = 6.3 mm
1/4
METRIC
SECTION MODULUS 21.9857 cm³

SCANTLING THICKNESS 6.35 mm 0.635 cm
WEB 4 inch 10.16 cm
PLATING 3 1/2 inch 8.89 cm
THICKNESS 1/4 inch 0.635 cm
FRAME SPACING 558.80 mm 55.88 cm
SCANTLING MEMBER SIZE (S) AREA (A) dg (Y) adg (aY) adg² (aY)² I = ½ bh³
LONGITUDINAL BOTTOM 55.88 x 0.635 35.484 11.266 399.7643 4503.787
BOTTOM LONGITUDINAL FRAME 8.89 x 6.35 x 1.27 14.516 7.7978 113.1936 882.661 2765.997
� FA 50.000 512.9579 5386.448
2765.9966
8152.445
NEW dg = adg
a
512.958
50.000
= 10.2591788
NEW ICG = � adg² NEW adg²

8152.445 5262.527
= 2889.918
TOP ''C'' = 10.80 NEW dg

10.80 10.25918
= 0.54
NEW a(dg)² = 50.000 x NEW dg ²

50.000 x 105.251
= 5262.527
SM ( W) = NEW ICG
C
2889.918
0.54
= 5393.437
english system
SECTION MODULUS 21.9857 cm³ 1.341655 inch ³
SCANTLING THICKNESS 1/4 inch 0.025 cm
WEB 4 inch 10.16 cm
PLATING 3 1/2 inch 8.89 cm
THICKNESS 1/4 inch 0.635 cm
FRAME SPACING 558.80 mm 22 inch
SCANTLING MEMBER SIZE (S) AREA (A) dg (Y) adg (aY) adg² (aY)² I = ½ bh³
LONGITUDINAL BOTTOM 55.88 x 0.635 5.500 0.688 3.78125 2.600
BOTTOM LONGITUDINAL FRAME 8.89 x 6.35 x 1.27 1.310 3.34 4.37409 14.605 1.17
� FA 6.810 8.15534 17.205
1.17
18.375
NEW dg = adg
a
8.155
6.810
= 1.1975536
NEW ICG = � adg² NEW adg²

18.375 9.766
= 8.608
TOP ''C'' = 10.19 NEW dg

10.19 1.197554
= 8.99
NEW a(dg)² = 6.810 x NEW dg ²

6.810 x 1.434
= 9.766
SM ( W) = NEW ICG
C
8.608
8.99
= 0.958
OF STEEL VESSELS 2017
OF STEEL VESSELS 2017

BOTTOM LONGITUDINAL FRAME
SECTION MODULUS = 21.9857 cm³ 1.3417 inch ³
SCANTLING THICKNESS = 1/4 inch
DIMENSION
PLATE = 558.8 mm 22 inch
WEB = 3 inch
FLANGE = 2 inch
THICKNESS = 1/4 inch
SCANTLING MEMBER SIZE (S) AREA (A) Dg (Y) adg (aY) adg² (aY)²
BOTTOM LONGITUDINAL 22 x ¼ 5.50 0.688 3.781 2.60
BOTTOM LONGITUDINAL L3 x 2 x ¼ 1.19 2.26 2.68583 6.06
FRAME
FA 6.69 adg 6.467 8.66
+ 1.09
F(adg)² 9.75
New dg adg 6.467

= = ans =
a 6.69
New a(dg)²
= FA x 0.9667 = 6.69 x 0.9667 ans =
New ICG = adg² - New adg² = 9.75 x 6.252 ans =
TOP "C " = 3.25 - 0.9667 ans =
SM (W) New ICG 3.500

= = ans =
C 2.283
SM PERCENT = 1.533 - 1.3417

0.26 x 100 %
ans = 25.65 %
INNER BOTTOM LONGITUDINAL

DIMENSION
WEB = 3 inch
FLANGE = 2 1/2 inch
BOTTOM LONGITUDINAL 22 x ¼ 5.50 0.688 3.781 2.60
BOTTOM LONGITUDINAL L3 x 2 ½ x 5/16 0.996 2.36 2.352552 5.56
FRAME
FA 6.50 adg 6.134 8.16
+ 0.907
F(adg)² 9.06
New dg = adg = 6.134 ans =

a 6.50
New a(dg)² = FA x 1.0631 = 6.50 x 0.9442 ans =
New ICG = adg² - New adg² = 9.06 - 5.792 ans =
TOP "C " = 3.25 - 0.9442 ans =
SM (W) = New ICG = 3.272 ans =

C 2.306
SM PERCENT = 1.419 - 1.1404

0.32 x 100 %
ans = 31.75
DECK LONGITUDINAL
DIMENSION
WEB = 4 inch
FLANGE = 3 1/2 inch
BOTTOM LONGITUDINAL 22 x3 3/8 8.25 1.547 12.762 19.74
BOTTOM LONGITUDINAL L4 x 3 ½ x3/8 2.67 3.17 8.45055 26.75
FRAME
FA 10.92 adg 21.212 46.49
+ 4.18
F(adg)² 50.67
a 10.92
New a(dg)² = FA x 1.0631 = 10.92x 1.9425 ans =
TOP "C " = 4.38 - 1.9425 ans =

C 2.432
SM PERCENT = 3.890 - 3.8067

0.32 x 100 %
ans = 31.61
DECK TRANSVERSE
DIMENSION
WEB ] 4 inch
FLANGE = 3 1/2 inch
BOTTOM LONGITUDINAL 22 x3 3/8 8.25 1.547 12.762 19.74
BOTTOM LONGITUDINAL L4 x 3 ½ x3/8 2.67 3.17 8.45055 26.75
FRAME
FA 10.92 adg 21.212 46.49
+ 4.18
F(adg)² 50.67

a 10.92
New a(dg)² = FA x 1.0631 = 10.92x 1.9425 ans =

TOP "C " = 4.38 - 1.9425 ans =

C 2.432
SM PERCENT = 3.890 - 0.3410

1.21 x 100 %
ans = 121.01
I =1/12 bh³
1.09
0.9667
6.252
3.500
2.283
1.533 inch ³ / 25.808 cm³

I = 1/12 bh³
0.907
0.9442
5.792
3.27153809567426
2.306
1.419 inch ³ / 23.88928 cm³
I = 1/12 bh³
4.18
1.9425
41.205
9.462
2.432
3.890 inch ³ / 65.49074 cm³
I = 1/12 bh³
4.18
1.9425
41.205
9.462
2.432
3.890 inch ³ / 65.49074 cm³

SCANTLING THICKNESS = 6.35 mm 0.64 cm
WEB = 4 inch 10.16 cm
PLATING = 3 1/2 inch 8.89 cm
THICKNESS = 1/3 inch 0.79 cm
FRAME SPACING = 558.8 mm 55.88 cm
24 inch 60.96 cm
SCANTLING MEMBER SIZE (S) AREA (A) dg (Y) adg (aY) adg² (aY)²
BOTTOM LONGITUDINAL 55.88x ¼ 48.39 0.397 19.204 7.62
BOTTOM LONGITUDINAL L4x 3 1/2 x 5/16 14.52 7.95 115.444 918.10
FRAME
FA 62.90 adg 134.647 925.72
+ 776.9653
F(adg)² 1702.69
New dg adg 134.647

= = ans =
a 62.90
New a(dg)²
= FA x 0.9667 = 37.73 x 0.8266 ans =
New ICG = adg² - New adg² = 957.02x 25.785 ans =
TOP "C " = 10.80 - 2.1406 ans =
SM (W) New ICG 1414.468

= = ans =
C 8.654
SM PERCENT = 163.438 - 21.9857

6.43 x 100 %
ans = 643.38 %

SCANTLING THICKNESS = 6.35 mm 0.64 cm
WEB = 4 inch 10.16 cm
PLATING = 3 1/2 inch 8.89 cm
THICKNESS = 1/3 inch 0.79 cm
24 inch 60.96 cm
BOTTOM LONGITUDINAL 55.88x ¼ 48.39 0.318 15.363 4.88
BOTTOM LONGITUDINAL L4x 3 1/2 x 5/16 14.52 7.96 115.498 918.97
FRAME
FA 62.90 adg 130.861 923.84
+ 9.0424
F(adg)² 932.89
New dg adg 130.861

= = ans =
a 62.90
New a(dg)²
= FA x 0.9667 = 37.73 x 0.8266 ans =
New ICG = adg² - New adg² = 957.02x 25.785 ans =
TOP "C " = 10.80 - 2.0804 ans =
SM (W) New ICG 660.649

= = ans =
C 8.715
SM PERCENT = 75.809 - 21.9857

2.45 x 100 %
ans = 244.81 %
I = ½ bh³
776.97
2.1406
288.219
1414.47
8.654
163.438 cm³ / 10.008 inch ³
4.02 inch ³ 65.87598
I = ½ bh³
9.04
2.0804
272.238
660.65
8.715
75.809 cm³ / 4.642 inch ³

I. Scantling Particulars

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I. Scantling Particulars

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SCANTLING CALCULATION

II. SCANTLING LENGTH (L)

SCANTLING DEPTH (D)

SECTION 3: SHELL PLATING

Adopt 558.8 millimeters for designed used

BOTTOM SHELL AND BILGE STRAKE

Adopt 1219.2 mm for designed used

The thickness of the keel is not less than to be

THICKNESS OF THE KEEL PLATE

11.1 mm or 7/16 inch for design used that must higher

TRANSVERSE BOTTOM FRAMING

LONGITUDINAL BOTTOM FRAMING

THICKNESS OF BOTTOM SHELL PLATING (INCLUDING SIDE SHELL PLATING)

7.9375 mm or 5/16 inch for design used (standard)

SIDE SHELL AND SHEERSTRAKE

THICKNESS OF SIDE SHELL PLATING WITHIN 0.4L AMIDSHIPS

THICKNESS OF SIDE SHELL PLATING

THICKNESS OF STRENGTH DECK PLATING

REFERENCE:PRS RULES FOR THE CONSTRUCTION AND CLASSIFICATION OF STEEL VESSELS

BREADTH OF STRINGER PLATES

THICKNESS OF STRINGER PLATES

t = t ( thickness of strength deck plating) x 1.35

11.11 mm or 7/16 inch for design used (standard)

THICKNESS OF LOWER DECK PLATING

THICKNESS OF SECOND DECK PLATING INSIDE LINE

6.35 mm or 1/4 inch for design used (standard)

THICKNESS OF THIRD DECK PLATING OUTSIDE LINE

7.9375 mm or 5/16 inch for design used (standard)

THICKNESS OF THIRD DECK PLATING INSIDE LINE

6.35 mm or 1/4 inch for design used (standard)

NOTE: NO NEED TO ADJUST THE SPACING

THICKNESS OF PLATFORM DECK PLATING

6.35 mm or 1/4 inch for design used (standard)

SECTION 6: DOUBLE BOTTOM

DEPTH OF CENTER GIRDER

Adopt 760 mm for designed used

THICKNESS OF CENTER GIRDER

9.525 mm or 3/8 inch for design used (standard)

b.) for 0.1 L at ends

9.525 mm or 1/4 inch for design used (standard)

SECTION 6: DOUBLE BOTTOM

THICKNESS OF CENTER GIRDER

a.) for 0.4 L amidships

9.525 mm or 1/4 inch for design used (standard)

b.) for 0.1 L at ends

9.525 mm or 1/4 inch for design used (standard)

TRANSVERSE FRAMING -THICKNESS PLATE FLOORS

Adopt 8 mm for designed used

SECTION MODULUS OF STIFFINERS

PLANE BULKHEAD PLATING

THICKNESS OF THE PLANE WATERIGHT BULKHEAD

Adopt 6.35 mm for designed used

SECTION MODULUS OF BOTTOM FRAMES OF BRACKET FLOORS

REFERENCE:PRS RULES FOR THE CONSTRUCTION AND CLASSIFICATION OF STEEL VESSELS

TRANSVERSE FRAMING-INNER BOTTOM PLATING AND MARGIN PLATE

9.525 mm or 1/4 inch for design used (standard)

for 0.4 l amidship but not is less than 6mm

LONGITUDINAL FRAMING - BOTTOM GIRDERS