Skid Lifting and Skid Design as Per ASCEFull description
Descripción: skid_steer_loader_safety.pdf
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Skid row
Skid rowFull description
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Data PetronasFull description
No.6, Lot 200836, Jalan Usahawan 5 Kaw. Perusahaan Setapak,
Vendor Document No.
Rev.
5903-200-A1003-4142-0002-0001
A
53200 Setapak, Kuala Lumpur
SKID STRUCTURE CALCULATION Design/calculations are the sole responsibility of NUSAPETRO, by signing this document I am only acknowledging receipt HA MBD Project Phase 3
Requisition Number:
5903-200-MR-4142-0002
SKID DESIGN CALCULATION & ANALYSIS OF LIFTING EQUIPMENT
TABLE OF CONTENT
Number of pages
PAGE
INTRODUCTION
1
3
2
DESIGN CRITERIA
1
3
3
COMPUTER SIMULATION
2
4-5
4
DESIGN LOAD & LOAD COMBINATION
1
6
5
RESULT SUMMARY
2
7-8
6
STAAD OUTPUT – 4 POINT LIFT
17
9 - 25
7
STAAD OUTPUT – SPREADER FRAME
9
26 - 34
8
PADEYES/LUG CALCULATION
4
35 – 38
9
LIFTING SETS VERIFICATION CALCULATION
2
39 – 40
1
Skid Design Calculation & Analysis of Lifting Equipment
1. INTRODUCTION
This calculation report aims to check the structural integrity of Heat Exchanger (HEX) Skid Structure during Lifting Condition by means of Spreader Frame Lifting. The Calculation report also specifies the design of spreader frame structure for lifting, trunnion design, and lug design. The design calculation done by means of computer simulation of Staad Pro V8i and Excel Spreadsheet. The Result summary will show the Utilization Ratio of Skid Structure from the computer modelling. The design calculation will be carried out and base on the AISC ASD Design Codes and Specification. 2. DESIGN CRITERIA
2.1.
DESIGN CODES , STANDARDS AND RULES
The Structural Design Calculation are based on the following Codes and Specification • •
American Institute of of Steel Construction Allowable Allowable Stress Design ,AISC ASD ASD 21st Edition American Petroleum Institute Working Stress Design , API API WSD
Skid Design Calculation & Analysis of Lifting Equipment
3. COMPUTER SIMULATION
3.1.
COORDINATE SYSTEM
The Model uses a set of 3D-Orthogonal axis system following right hand rule + X direction --- The Longitudinal Direction of Skid + Y direction --- The Vertical Axis + Z direction --- The Lateral Direction of Skid
Figure 3.1: 3D View of the HEX Skid Structure
Skid Design Calculation & Analysis of Lifting Equipment
Figure 3.2: 3D View of the Spreader Frame
3.2.
MEMBER PROPERTIES AND MATERIAL
Skid Design Calculation & Analysis of Lifting Equipment
4. DESIGN LOAD & LOAD COMBINATION
4.1.
Modelled Weight
The modelled weight of the Skid Structure is to be considered as the Selfweight of the Skid Structure without Equipment and Misc Structures. The load factor of 20% is applied to simulate any uncertain weight during fabrication. 4.2.
Non-Modelled Non-Modelled Weight
Equipment and Piping weight is considered in the non-modelled weight. Total of the Nonmodelled Weight is the remaining of weight of Skid 4.30 MT deducted by Selfweight of Skid Structure +20% .
4.3. Load Combination
Total Fabrication Weight Selfweight Factored Selfweight
= = =
4.30 MT 0.74 MT 0.88 MT
Equipment + Piping Load
=
3.42
MT
Skid Design Calculation & Analysis of Lifting Equipment
5. RESULT SUMMARY 5.1.
HEX SKD STRUCTURE 4 POINT LIFTING 5.1.1. MAXIMUM UNITY CHECK
Member No 43 44
Property
Maximum UC
Allowable UC
Remark
0.876
1.00
OK - Safe
0.876
1.00
OK - Safe
C100 X 65 X 6 /C4 x 7 C100 X 65 X 6 /C4 x 7
65
L2X2X1/4
0.876
1.00
OK - Safe
67
L2X2X1/4
0.876
1.00
OK - Safe
Table 5.1 Maximum Unity Check 5.1.2. MAXIMUM DEFLECTION
Maximum Displacement @ Joint No. 25 = -6.324 mm
Skid Design Calculation & Analysis of Lifting Equipment
5.2.
SPREADER FRAME 5.2.1. MAXIMUM UNITY CHECK
Member No
Property
Maximum UC
Allowable UC
Remark
4
W4 x 13
0.054
1.00
OK - Safe
Table 5.1 Maximum Unity Check 5.2.2. MAXIMUM DEFLECTION
Maximum Displacement @ Joint No. 6 = -1.407 mm Support Displacement @ Joint No. 8 = -1.174 mm Length, L = 2070 mm Actual Deflection, D act = Joint No.6 – Joint No. 8 = -1.407 – (-1.174)
Skid Design Calculation & Analysis of Lifting Equipment 6. STAAD STAAD OUTPUT 4 POINT LIFT
Jo Job No
1
1
HEX SKID STRUCTURE
Ref
Client
Job Information
En Engineer
Checked
Name:
MFP
MSJ
Date:
21-Jul-15
Structure Type
Approved
SPACE FRAME
Number of Nodes
89
Highest Node
94
Number of Elements
99
Highest Beam
111
9
Highest Plate
88
Number of Plates Number of Basic Load Cases
2
Number of Combination Load Cases
2
Included in this printout are data for: The Whole Structure All Included in this printout are results for load cases: T ype L/ C
