PVElite lifting luganalysis 吊耳计算

PAGE PAGE 1 PVElite 2005 Licensee: FileName : 2519 ------------------------------------------ Leg & Lug Analysis LiftingLug Item: 1 3:45p Jul 31,2009 TC "Leg & Lug Analysis LiftingLug" /f C Input Echo, Leg & Lug Item 1, Description: LiftingLug Design Internal Pressure 1050.00 KPa. Design Temperature for Attachment TEMP 120.00 C Vessel Outside Diameter OD 323.8000 mm. Vessel Wall Thickness TS 8.3800 mm. Vessel Corrosion Allowance CAS 1.6000 mm. Vessel Material SA-516 70 Vessel Material UNS Number K02700 Vessel Allowable Stress at Design S 137.90 N./mm^2 Analysis Type: Lifting Lug Lifting Lug Material SA-516 70 Lifting Lug Material UNS Number K02700 Lifting Lug Yield Stress YIELD 235.98 N./mm^2 Lifting Lug Orientation to Vessel Flat Width of Lifting Lug WLIF 80.0000 mm. Thickness of Lifting Lug TLIF 16.0000 mm. Diameter of Hole in Lifting Lug DLIF 40.0000 mm. Radius of Semi-Circular Arc of Lifting Lug RLIF 40.0000 mm. Height of Lug from bottom to Center of Hole HLIF 60.0000 mm. Offset from Vessel OD to Center of Hole OLIF 8.0000 mm. Minimum thickness of Fillet Weld around Lug TWELD 8.0000 mm. Length of weld along side of Lifting Lug LWELD 8.0000 mm. Length of Weld along Bottom of Lifting Lug BWELD 106.0000 mm. Lift Orientation Vertical Force Along Vessel Axis FAX 271.00 Kgf Force Normal to Vessel FN 0.00 Kgf Force Tangential to Vessel FT 0.00 Kgf Importance Factor IMPFAC 1.00 Occasional Load Factor (AISC A5.2) OCCFAC 1.00 RESULTS FOR LIFTING LUGS : Description:LiftingLug Weld Group Inertia in the Circumferential Direction ILC 1.232 cm**4 Weld Group Centroid distance in the Long. Direction YLL 10.951 mm. Dist. of Weld Group Centroid from Lug bottom YLL_B -2.951 mm. Weld Group Inertia in the Longitudinal Direction ILL 121.056 cm**4 Weld Group Centroid Distance in the Circ. Direction YLC 61.000 mm. Primary Shear Stress in the Welds due to Shear Loads: Ssll = SQRT(FAX^2+FT^2+FN^2)/((2*Lweld+Bweld)*Tweld) Ssll = SQRT(271 ^2+0 ^2+0 ^2)/((2*8.0 +106.0 )*8.0000 ) Ssll = 2.72 N./mm^2 Shear Stress in the Welds due to Bending Loads : Sblf = (FN*(Hlif-YLL_B))*YLL/ILC+(FAX*OLIF*YLL/ILC)+(FT*OLIF*YLC/ILL) Sblf = (0 *(60.000 --2.951 ))*10.951 /1.232 + (271 *8.000 *10.951 /1.232 ) + (0 *8.000 *61.000 /121.056 ) Sblf = 18.89 N./mm^2 Total Shear Stress vs. allowable Shear for Combined Loads : St = Ssll + Sblf St = 2.723 + 18.894 St = 21.62 N./mm^2 Sta = 0.4 * Yield * Occfac (AISC Shear All.) Sta = 0.4 * 235 * 1.00 Sta = 94.39 N./mm^2 Shear Stress in Lug above Hole vs. Allowable Base Metal Shear : Shs = SQRT( FAX^2 + FN^2 + FT^2 ) / Sha Shs = SQRT( 271 ^2 + 0 ^2 + 0 ^2 ) / 6.400 Shs = 4.15 N./mm^2 Sas = 0.4 * Yield * Occfac Sas = 0.4 * 235 * 1.00 Sas = 94.39 N./mm^2 Pin Hole Bearing Stress Vs. Allowable Bearing Stress Pbs = Sqrt( FAX^2 + FT^2 )/( Tlif * Dlif ) Pbs = Sqrt( 271 ^2 + 0 ^2 )/( 16.000 * 40.000 ) Pbs = 4.15 N./mm^2 Pba = Min( 0.75 * Yield * Occfac, 0.9*Yield ) AISC Bearing All. Pba = Min( 0.75 * 235 * 1.00 , 212.4 ) Pba = 176.98 N./mm^2 Bending stress at the base of the lug [Fbs]: = FN*(HLIF-LWELD) / (WLIF*TLIF^2/6) + FT*(HLIF-LWELD) / (WLIF^2*TLIF/6) = 0 *(60.000 - 8.000 ) / (80.000 *16.000 ^2 / 6) + 0 *(60.000 - 8.000 ) / (80.000 ^2 *16.000 / 6) = 0.00 N./mm^2 Tensile stress at the base of the lug [Fa]: = FAX / (WLIF * TLIF) = 271 / (80.000 * 16.000 ) = 2.08 N./mm^2 Total Combined Stress at the base of the lug: = Fbs + Fa = 2.1 mm. Lug Allowable Stress for Bending and Tension: = Min( 0.66 * Yield * Occfac, 0.75*Yield ) = Min( 0.66 * 235 * 1.00 , 177.0 ) = 155.7 N./mm^2 SUMMARY OF RESULTS ---------------------------------------------------------------------------- Calc./Design Allowable P/F ---------------------------------------------------------------------------- Primary Shear Stress of Weld, N./mm^2 : 21.62 94.39 P Shear Stress above Hole, N./mm^2 : 4.15 94.39 P Pin Hole Bearing Stress, N./mm^2 : 4.15 176.98 P Total Combined Stress at the base of the lug, N./m 2.08 155.74 P ---------------------------------------------------------------------------- PVElite 2005 ?993-2005 by COADE Engineering Software TC "Vessel Results Summary" /f C Leg Lug Results Summary for Item 1 : LiftingLug The Vessel outside diameter is 323.800 mm. SUMMARY OF RESULTS ---------------------------------------------------------------------------- Calc./Design Allowable P/F ---------------------------------------------------------------------------- Primary Shear Stress of Weld, N./mm^2 : 21.62 94.39 P Secondary Shear Stress of Weld, N./mm^2 : 0.00 0.00 P Shear Stress above Hole, N./mm^2 : 4.15 94.39 P Pin Hole Bearing Stress, N./mm^2 : 4.15 176.98 P Total Combined Stress at the lug base, N./mm^2 : 2.08 155.74 P ---------------------------------------------------------------------------- PVElite 2005 ?993-2005 by COADE Engineering Software