lifting gear used, appear. 1.04962 Microprotol 32.9.0.5 - Jul 2010 procal V32.9.0.5 - 01/07/2010 8 prodia2 V32.9.0.5 - 1/07/2010 EuResearch Input data list Design Parameters. Select a metric shackle from the lookup table based on the force on the lug or click the SHACKLE button to enter your own shackle and lug data. Lifting factor f is the acceleration factor. Users are also directed to popular vendor catalogues to acquire commonly used items, such as SHEAR ALLOWABLE Fv = 0.4Fy TENSION ALLOWABLE Ft = 0.6Fy COMBINED STRESS ALLOW Fa = 0.66Fy BEARING STRESS ALLOW = 0.9FY COMBINED STRESS ALLOW Fa = 0.66Fy AREA A=b*t SECTION Sx=t*b2/6 Sy=b*(t2)/6 SHEAR fv = Ph/A SHEAR RESULTANT fvr =(fv2+(PER/100*fv)2)0.5 IN PLANE BENDING STRESS = Ph*h/Sx Combined stress of the lug plate. LIFTING LUG DESIGN CALCULATION tL rL d k TL htl hp r hc Wp b a tp Lp Weight of vessel, We 1.1 2.0 3.0 4.0 4 . calc. If there is no bushing in the lug, then the calculation should still be performed assuming that the lug material is the bushing material. 5 ⋅ α) C {e} = \frac {\displaystyle 1} {\displaystyle \cos (0.5 \cdot \alpha)} C e = cos(0.5⋅α)1. . As discussed in Reference 1, using a "factor" of 1.8 on AISC allowables results in a factor of safety of 5 for A36 steel. It is therefore required that they are supplied with an EC Declaration If left on the vessel during operation then they must meet the Code material requirements for nonpressure parts, UG-4 (b). allowable end area. steel sections, and lifting lug capacities. 135 1 169KB Read more. Lifting Lug … PadEyes uses the compatibility of a well-known shackle design⁽¹⁾ to dimension a suitable mating padeye. Lifting Lug Design Calculator – Slide the size, design type, depth, stress, and riser requirement into the calculator to get the needed information. The lug ultimate bearing stress ( F bru.L) is Fbru. Lifting Lug … For values óf eD less thán 1.5, lug failures are likely to involve shear-out or hoop tension; and for values of eD greater than 1.5, the bearing is likely to be critical. Words: 460; Pages: 2; Preview; Full text; Page 4 STANDARD LIFTING LUG DESIGN 20 TONS CAPACITY Generals: total weight (Empty Skid + lifted equipment) = number of lifting points = Safety Factor, FS = Min. calc. allowable end area. Padeye Parts. Doc no- FEWA 04EW/10 Rev no 0 RO DESALINATION PLANT AT AL ZAWRAH, Prestige Engineering Project- AJMAN Date 11/7/2012 Title LIFTING LUG CALCULATIONS Qty 2 Tag no Pg 1 LIFTING CALCULATIONS Erection Weight,P-Kg 7000 68600 (N) Impact factor,F 2 No of Lugs 4 Lug dimensions Angle of lift, degrees 0 h= 120 mm a= 240 mm b= 240 mm f= 120 mm d= 80 mm t= … * Note: Max proof load is 2.2 times the working load limit. Min Ult Strength is 6 times the working load limit. LUG DESIGN [XLS] Bhartendu Patni. When modelling the lifting system the user will need to specify the following: Lifting System Configuration. Then I found this calculator: SKID (A-6810) PROJECT NO. Metric (S.I.) Lifting Lug Calculation. Ede Jaimes. Ede Jaimes. If D/t is greater than 5, there is a reduction in strength which can be approximated by the curves in Figure 9-3. Lug sizing theory is used to design lugs used as connector elements to transfer structural loads with pins. Lifting factor f is the acceleration factor. df. This is in line with ASME B30.20 which requires a design factor of 3 on yield strength and ANSI N14.6 which requires a design factor of 3 on yield strength and 5 on ultimate ye-kyaw-aung. DESIGN LOAD: SLING TENSION P = FOS * Ts P LIFTING ANGLE a ACTUAL OUT OF PLANE ANGLE b VERTICAL FORCE ON PADEYE Fz = P * sin a Fz OUT OF PLANE FORCE Fyl = P * sin b Fyl HORIZONTAL FORCE ON PADEYE Fx = P * cos a Fx Horizontal dist.PIN CL to N.A. A lifting hook is a looped shaped smooth rebar of S235C, anchored in the precast unit and used for demoulding, transportation and lifting. Maximum effective lug radius. Industry codes of practice caution against attempts to lift or move mechanical equipments by wrapping chains or cables around the equipment. The lifting force acting on the padeye is caused by the weight of the structure and the equipment used. L = K a D Ftux, (e / D < 1.5) (9-1a) Fbru. Used to calculate the max. Lifting Lug. Maximum effective lug radius. I used a bearing force in Inventor and tried the same in Solidworks with identical results. Lifting Lug Calculation - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Max Combined Stress due to Fx + Fy, S=SQRT [ (S1+S3)²+S2²] S. 10 50 25 25 40 10 6 14.14 0.6. L = K Ftux, (e / D ≥ 1.5) (9-1b) The graph in Figure 9-2 applies only to cases where D/t is 5 or less, which covers most of the cases. Lifting Lug Design Excel May 1st, 2018 - Pressure Vessel Lifting Lug Design Calculation Xls Pdf Free Download Here PRESSURE VESSEL DESIGN CALCULATIONS Global Pipeline Engineering' 'NCSX PPPL GOV APRIL 30TH, 2018 - LUG FU LUG FY FY FTU MINIMUM DESIGN FACTOR REF ASME BTH 1 2005 DESIGN OF BELOW THE HOOK LIFTING DEVICES PAGES 23 Design Code : AD-MERKBLAETTER 2000 (11-2007) Karman Effects Prevented by 3 Helicoidal Plates at 120° : no or English (U.K.) Units System can be selected for the calculation. Both the Standard and Pro version of MecaLug will allow the user to perform lifting lug calculations for a single Padeye / lifting lug. There are a variety of different Padeye / lug configurations that can be chosen to suit the specific needs. Lifting Lug. Lifting Lug and Support Lug. When lifting and carrying precast elements, the lifting load has to be multiplied by the “f” factor. We recommend that, if possible, ß should be kept to ß ≤30°. The user can enter a desired factor of safety (most applications, F.S. 1 .0 LIFTING LUG DESIGN CALCULATION (B) SCHEMATIC DIAGRAM OF 2 NOS LUGS WITH NO … In addition, thé lug ánd bushing must bé checked to énsure that the déformations at design yieId load are nót excessive. Class is determined by the selected lifting system (for example, class H1 for a bridge crane, class H4 for a The lifting classes are described in DIN 15018. Download & View Lifting Lug Calculation as PDF for free. A lifting lug or a padeye, is essentially a plate with a hole in it where the hole is sized to fit a clevis pin. The multiplier factor can be calculated as follow : C e = 1 cos ⁡ ( 0. LIFTING LUG DESIGN CALCULATION (SKID) ITEM : C.I. Pad-eye shapes can vary depending on use. Open navigation menu. Each lift point consists of a padeye which is welded to the structure and connected to the sling by a shackle. Combined stress of the lug plate. Net Section Strength Under Axial Load. The tensile force on the anchor is increased with a spread angle factor z. Design/Evalution of Overhead Lifting Lugs Page 7 1. Combining material, geometry, and loads, LugCalc will walk you through the analysis steps required to estimate a lug joints static strength. Lifting lug design is very critical and hence mostly done using FEA software. The basic design of a lifting lug is consists of four parts; the design of lug plate, verifying the weld used to connect it to a shell or structure, checking the bearing stress at the pin-hole and. confirming the end area of the lug. For the lifting system, a complete analysis of the loads in each cable, at each crane point, and acting on the lugs. This is in line with ASME B30.20 which requires a design factor of 3 on yield strength and ANSI N14.6 which requires a design factor of 3 on yield strength and 5 on ultimate Design of a lifting lug with overlapping plate joint subjected to a sloped force The previous lug is verified considering the case with the main plate overlapping the bottom structure with a welding line all around its perimeter. Posted in Technical Library, What's New The lugs being used and orientation (if necessary) Gasket : Grooved Metal + Graphite Layer Inside the Bolt Circle k0(mm)= k0.KD(N/mm) = 20*BD KD= 0 MPa DIN 2505 k1(mm) = 1.1*BD KDϑ= 0 MPa DIN 28090 σVU= 0 MPa σVO= 0 MPaσBO= 0 MPa FlangeNo.2 GF02 Channel girth flange Wd=C x We. ENGINEERING DESIGN OF LIFTING LUGS. Close suggestions Search Search. As the typical industrial applications of a lifting lug pose immense safety risks in the incident of failure, heavy load analysis calculations must be considered when making one. Lifting Lug Calculation - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Calculations are given for wind, seismic, vehicular, piping, and other loads. df. Close suggestions Search Search. With α the angle formed between : the two slings connecting the most distant points if no specific balancing system is used. MecaLug is a complete lifting lug calculations software package. Symmetrical pad-eyes may also be used for sling angles of upto 60 degrees with the horizontal/base of pad-eye. Lifting Lug. = 5.0). Historically, lugs have been over-designed since weight and size requirements were for the most part, unrestricted. Tools di progettazione per il calcolo delle connessioni con perni e di occhioni di sollevamento secondo le norme internazionali (Eurocodici) e la letteratura tecnica. mahhor82_635643838. More details. I did some simple hand calcs and stress was significantly lower. General data and assumptions . Lifting lug calculation.xls - Free download as Excel Spreadsheet (.xls), PDF File (.pdf), Text File (.txt) or read online for free. LugCalc is a calculator software tool for lug analysis theory and estimating the static structural strength of pinned lug joints used in mechanical designs. Must be less than 1.0. The considered beam has a rectangular section of 0.20x0.50 m and a length of 6.00 m. The designated concrete class is 25/30, while the steel is S500. Open navigation menu. 1 .0 LIFTING LUG DESIGN CALCULATION (B) SCHEMATIC DIAGRAM OF 2 NOS LUGS WITH NO TAILING LUG C2 Cz2 Cx2 q C.O.G W ds . C.I Injection system (A-6810) - Permas Field Substructure Weight of component to be lifted Component force acting on beam, F Impact factor SKID LUG SIZING Distance from lug hole to edge of beam, k padeye design and calculation. Tel: 0845 270 2919 - INT: 00 44 161 223 1990 - Email: sales@dale-lifting.co.uk - Web: www.dlhonline.co.uk 11 7. Design Calculations Deisohexanizer Reboiler E-610 29 July 2010 Revision : 0 Ref. Double Plane Fracture Strength of Lifting Lug (ASME Eqn. 3-50): R = P6 = Z' = P7 = (continued) Comments: Cr = 1 - 0.275*sqrt{1 - (dpin^2 / dh^2)} P4 = (0.6*Fu*2*t*e) / F.S.1 P5 = (Fy*t*b) / F.S.2 Stress of Weld Fron force Fx, Bending Shear Combined From Force Fy, Shear. Spreader Bar Calculation. and there is a fully automated sheet that does all of the calculations and calculates the interaction: AA-SM-009-005 Lug Analysis – Compact Oblique.xlsx There is also a spreadsheet that calculates the complex pin bending effect. RESTRICTED Feb-13 Docu . Design/Evalution of Overhead Lifting Lugs Page 7 1. Lifting calculation method 5. 112 10 228KB Read more. Lifting hooks calculation . Fig 1. Here's a simple sizing calculator for the most basic type of lifting lug. 5 Calculations 5.0.1 Shear plane locating angle Locates the two planes along which shear tear out occurs. en Change Language. = 5.0). PadEye Calculator (shackle compatibility & design capacity) A padeye (Fig 1; sometimes referred to as 'padear') is a term used to describe a specialised lug for attaching lifting or restraint shackles. LUG DESIGN [XLS] Bhartendu Patni. Lifting Angle Tension in Sling Force. R = edge distance (distance from center of hole to edge of lug in direction of applied load) r = radius of curvature of edge of lug (greater than or equal to R) a = distance from edge of hole to edge of lug = R − 0.5 D h w = width t = thickness (not shown in figure -- thickness is into the page) Minimum required factor of safety is 3. A lug, also known as a lifting lug or a padeye, is essentially a plate with a hole in it where the hole is sized to fit a clevis pin. exl STRESS CHECK AT BASE Moment Calc at distance , H In Plane Moment My = ( Fx*H ) - ( Fz*ex l) My The program will determine the ultimate strength of the lifting lug based on several checks and will apply the desired factor of safety to the strengths to attain allowable loads for the lifting lug. = 5.0). Design spreadsheets and tools for calculations of the connections with pins and lifting lugs in compliance with international codes (Eurocode) and technical literature. The static lug strength analysis in esdu 91008 includes the effect of the material grain flow direction and whether the lug will be fabricated from sheet, casting, bar, extrusion, forging etc. Pressure Vessel. sling angle, q = Max. The load carried by each lug should be determined by distributing the total applied load P among the lugs as indicated in Figure 9-13, b being obtained in Table 9-2. 77 3 3MB Read more. Courtesy: Bishop Lifting Lifting Lug Design Courtesy: Winsafe. Petroleum Development Oman LLC Revision: 0 Effective: Sep-08 Petroleum Development Oman L.L.C. As discussed in Reference 1, using a "factor" of 1.8 on AISC allowables results in a factor of safety of 5 for A36 steel. Working Load Limit * (kips) L N P Crosby Forged Anchor Shackles, G-2130 S-2130 Dimensions (in.) Used to calculate the max. The calculator has been designed for use with a simple s106 Lifting Lug on page 7 of the specification for the Air Force Method of design for the determination of design conditions. 3.898515 N/mm2 11783.33 mm3 1414 mm2. A lifting lug or a padeye, is essentially a plate with a hole in it where the hole is sized to fit a clevis pin. Industry codes of practice caution against attempts to lift or move mechanical equipments by wrapping chains or cables around the equipment. Guideline Lifting Lug Design. df. The applied shear load, Vapp, used to design the shear lug should be computed as follows: Vapp = Vua - Vf 9.2 Design Procedure for Shear Lug Plate Design of a shear lug plate follows (for an example calculation, see Appendix Example 3, this Practice): a. "LIFTING_LUG" is a spreadsheet program written in MS-Excel for the purpose of analysis of lifting lugs, used in rigging operations. SPREAD ANGLE FACTOR The cable angle ß is determined by the length of the suspending cable. For the lifting system, a complete analysis of the loads in each cable, at each crane point, and acting on the lugs. The program will determine the ultimate strength of the lifting lug based on several checks and will apply the desired factor of safety to the strengths … DESIGN LOAD PER LIFTING LUG Pvert = Nominal Shackle Size (in.) Lifting Lug Design Calcs as 4100. Select a metric shackle from the lookup table based on the force on the lug or click the SHACKLE button to enter your own shackle and lug data. In this sense they are no different than any temporary clip added to facilitate handling during shop fabrication. Documentation Lifting beams are classified as lifting accessories and fall within the scope of the Supply of Machinery (Safety) Regulations 2008. Hello, I'm designing a lift lug for 25000lbs. Lifting Lug rigging operations. When there is only a vertical load expected on the pad-eye (e.g., lifting operations with lifting sling completely vertical), then the pad-eye is generally symmetrical in design. Lifting lug design usa air force method kezar engineering. The design of lifting lugs is so general and there are many failure modes to be considered (stresses in shell, shear in the lifting pin, bending in the pin, shear pull-out in the lug, bending of the lug, tension and buckling of the lug, etc) that this is best left for another discussion. My FEA results show maximum stress 19.89ksi - way to high for A36 material. Shear Stress of Lug at Eye Tensile Stress of Lug at Eye Bending Stress of Lug at Base. The user can enter a desired factor of safety (most applications, F.S. AA-SM-009-004 Lug Analysis – Pin Bending.xlsx Enjoy! adammzjin. Lifting lugs are a temporary attachment that may be removed from the shell before operation. Lifting lugs are designed with the load and range of load that it can carry in mind. This software Designs Lifting Lugs in various Configurations per ASME BTH-1. Must be less than 1.0. en Change Language. Crosby Alloy Anchor Shackles, G-2140 S-2140 J K The user can enter a desired factor of safety (most applications, F.S. The calculator has been designed for use with a simple s106 Lifting Lug on page 7 of the specification for the Air Force Method of design for the determination of design conditions. User guides are included for Space Gass and Strand7, including a non-linear analysis example for lifting lug design. df. Description. Lifting Lug Design Calculator – Slide the size, design type, depth, stress, and riser requirement into the calculator to get the needed information. There is an ASME standard called 'ASME BTH-1 Design of Below-the-Hook Lifting Devices' which provides minimum structural design requirements for below-the-hook lifting devices, such as your lifting lugs. For a single lug analysis, this will contain a complete analysis of the lug per ASME BTH-1, considering each of the load cases entered by the user. Lifting Lug Design Calcs as 4100. There are a few hits if you search this particular forum for 'lifting lug calculation' which may be of help to you. 5 Calculations 5.0.1 Shear plane locating angle Locates the two planes along which shear tear out occurs.