g 9.81 m/s2

W 1.23 MT

n 2

LF 4

1 58 deg.

2 60 deg.

Fy Plate Steel SA-516 Gr.70 260 MPa

Fy(w) E70xx Electrode 393 MPa

7.2 kN

0.736 MT

6.8 kN

0.694 MT

7.2 kN

0.736 MT

Design Sling Load P = SL static x LF 28.9 kN

= 2.9 MT

Angle b/w Sling and Horizontal = (SLstatic)= 1 58 deg.

1.2 Allowable Stresses

Assuming that the allowalble stress of welding metal is equal to the allowable stress of the base metal

According to AISC code, the allowable stresses are as follow

- Bearing Stress Fb = 0.9 x F y 234.0 MPa

- Shearing Stress Fs = 0.4 x F y 104.0 MPa

- Tension Stress Ft = 0.6 x F y 156.0 MPa

- Von Mises Stress Fvon = 0.85 x F y 221.0 MPa

2.1 Shackle

- Shackle Type CROSBY G-2130 Bolt-Type Anchor Shackle

- Rated Safety Working Load SWL ( SLstatic) 3.25 MT

- Pin Diameter Dp 19.1 mm

- Inside Width W in 26.9 mm

- Inside Height Hin 60.5 mm

2.2 Sling (based on EN13141-1 Table 4 and SL static )

- Sling Type Steel Cored Rope Class 6x36, Grade 1770

Sling Nominal Diameter Ds 18 mm

3.1 Padeye Dimensions

- Pinhole Diameter Dh 24 mm

Pinhole Radius Rh 12 mm

- Main Plate Thickness Tm 20 mm

- Main Plate Radius Rm 40 mm

- Main Plate Length Lm 120 mm

2. Lifting Sets Sizing

PADEYE CALCULATION - PIG RECEIVERThis Spreadsheet performs design and check as per the guidelines of API RP 2A-WSD, AWS D1.1 and AISC Code

1.1

0. Input Data

1. Initial Calculation

Refer to the latest Revision of "Lifting Arrangement Drawing for Pig Receiver No. SVSW-004101-D38-0002" for full information Acceleration of Gravity

Total Liftting Weight

Left Angle b/w Sling and Horizontal

Load Factor

Number of Sling

Right Angle b/w Sling and Horizontal

Yield Stress

orLeft Static Sling Load

Right Static Sling Load or

3. Padeye Design

Static Sling Load orSLstatic = max (1, 2)

SL1 =

SL2 =

Page 1 of 4

- Pinhole CL to Padeye Base Hm 75 mm

- No. of Cheek Plate / Pinhole nc 0

- Check Plate Diameter Dc 0 mm

Check Plate Radius Rc 0 mm

- Cheek Plate Thk. Tc 0 mm

3.2 Padeye Dimension and Clearance Checking

- Main Plate Radius shall not be less than 1.5 times of Pinhole Diameter

40 36 PASS

- Clearance C2 b/w Padeye thk. and Shackle inside width shall be less than 25% of Shackle inside width

or less than 12mm, whichever is larger

6.9 12 PASS

- Vertical Clearance C3 b/w sling and top edge of padeye shall not be 0.5 x sling Diameter

14.5 9 PASS

4.1 Bearing Stress

- Min. Bearing Area Required Ab(min) 123 mm2

- Available Bearing Area Ab 382 mm2

- Unity Check UCb 3.10 PASS

Unity Check conforms to the Specification for Pressure Vessel

4.2 Tear-out Stress

4. Padeye Allowable Stresses Checking

1.5

() 0.5

= ( + )

= /

= /()

+ 25% or 12mm

1.5

Page 2 of 4

- Min. Shear Area Required As(min) 278 mm2

- Total Shear Area As 1120 mm2

Main Plate Shear Area As(m) 560 mm2

Cheek Plate Shear Area As(c ) 0 mm2

- Unity Check UCs 4.03 PASS

Unity Check conforms to the Specification for Pressure Vessel

4.3 Tensile Stress across the pinhole

- Min. Tensile Area Required At(min) 185 mm2

- Total Tensile Area At 1120 mm2

Main Plate Tensile Area At(m) 1120 mm2

Cheek Plate Tensile Area At(c ) 0 mm2

- Unity Check UCt 6.05 PASS

Unity Check conforms to the Specification for Pressure Vessel

4.4 Stresses at Padeye Base Section

4.4.1 Section Properties

- Section Area 2400 mm2

- Dist from pinhole CL to section N.A 75 mm

- Section Modulus 48000 mm3

8000 mm3

4.4.2 Acting Forces and Moments

- In-plane Bending Moment 1147831 Nmm

- Out-plane Bending Moment 108302 Nmm

- Tensile Force 24492.17 N

- In-plane Shear Force 15304 N

Out-plane Shear Force 1444 N

Total Shear Force 15372 N

4.4.3 Acting Stresses

- Acting Tensile Stress 10.2 MPa

Tensile Unity Check 0.07 PASS

- Acting In-plane Bending Stress 23.9 MPa

Bending(in-plane) Unity Check 0.10 PASS

- Acting Out-plane Bending Stress 13.5 MPa

Bending(out-plane) Unity Check 0.06 PASS

- Combined Bending & Tensile Check 0.23 PASS

- Acting Shear Stress 6.4

Allowable Shear Stress Checking 0.06 PASS

= ( )

= ( )

= 2 [ +()]

= /

= /

= +()

= ( )

= ( )

= /()

= /()

=

=

= ( 2)/6

= ( 2)/6

= . .

= (5%).

= .

= .

= 5%

= (2 +

2)1/2

= /

= / 1

= /

= / 1

= /

= / 1

= + + 1

= /A

= / 1

Page 3 of 4

- Von Mises Stress 48.9

Allowable Bending Stress Checking 0.22 PASS

4.5 Weld Stress

4.5.1 Weld Stress between Padeye and Reinforcement Pad

- Weld size w1 12 mm

- Length of weld (both side) L1 240 mm

- Area of Weld Aw1 2036 mm2

- Section Modulus of Weld Sw1 57600 mm3

- Tensile Weld Stress 12 MPa

Tensile Unity Check 0.08 PASS

- Shear Weld Stress 8 MPa

Shear Unity Check 0.07 PASS

- Bending Weld Stress 20 MPa

Bending Unity Check 0.09 PASS

4.5.2 Weld Stress between Reinforcement Pad and Barrel

- Weld size w2 12 mm

- Reinforcement Pad length Lp 160 mm

- Reinforcement Pad width Wp 100 mm

- Length of weld L2 520 mm

- Area of Weld Aw2 4412 mm2

- Section Modulus of Weld Sw2 294400 mm3

- Tensile Weld Stress 6 MPa

Tensile Unity Check 0.04 PASS

- Shear Weld Stress 3 MPa

Shear Unity Check 0.03 PASS

- Bending Weld Stress 4 MPa

Bending Unity Check 0.02 PASS

Conclusion

As per the results shown above, Padeye conforms to the lifting conditions.

SWL = 2.9 (T), Factor of Safety is 4

= [ + + )2 + 32

1/2

= / 1

= / 1

=

= 0.707 1

= 2

1 = /1

1 = /1

= 2 [( 2)/6]

1 = /1

1 = 1/ 1

1 = 1/ 1

1 = 1/ 1

=

= 0.707 2

= 2 ( + )

2 = /2

= /2

= [ ] + 2 [( 2)/6]

2 = /2

2 = 2/ 1

2 = 2/ 1

2 = 2/ 1

=

=

Page 4 of 4