PROJECT : INTERNAL JOB PAGE :-

PROJECT NAME : DESIGN By :Raffrizal

JOB.NO : REVIEW By :

*) FORK RECTANGULAR BAR (AISC 360-10 )

1. STATIC GEOMETRY PLAN :

2. INPUT DATA :

DIMENSION :La = 500 mmLb = 50 mmLc = 6600 mm

Ld = 1000 mm

Le = 2600 mm

Lf = 5500 mm

L = 7150 mm

L(PIPE-1) = 6600 mm

L(PIPE-2) = 10000 mmVariable length of Rope (xi) = 1050 mm

= 2650 mm= 5550 mm

Main fork length (Lf) = 1500 mm

Span of Rope (S) = 4500 mm(x) = 1050 mm

L-(S)-(x) = 1600 mm

LOAD :- SELFWEIGHT :

Selfweight of Pipe-1 (W1) = 391 Kg 0,87 KipSelfweight of Pipe-2 (W2) = 282 Kg/m

Selfweight of Channel (W3) = 52 Kg 0,12 KipSelfweight of Fork (W4) = 124 Kg 0,27 Kip

- FORK DISTRIBUTED LOAD (Q) : Q = (W1+W3+W4)/L

= 79 Kg/m

- CALCULATE (P1,P2,P3): P3 = Q*L

= 566 Kg 1,26 Kip P1 = (Xi.W2)+(S.W2/2)

931,5 Kg 2,07 Kip P2 = ((Lpipe-2-Xi-S).W2)+(S.W2/2)

1891,2 Kg 4,20 Kip(W2*Lpipe-2)-P1-P2 = 0

- FACTORED LOAD P1,P2 & P3 :P1 = 1,4* P1 = 1304 Kg 2,90 KipP2 = 1,4* P2 = 2648 Kg 5,88 KipP3 = 1,4* P3 = 793 Kg 1,76 Kip

- BENDING MOMENT (Mu)MA = Mu = -P1.(x)-P2.(S)-P3.(L/2)

= -16,12 Ton m = -1410 Kip.in

RESISTANCE FAKTOR for BENDING φb = 0,9UNBRACED LENGTH Lb = La = 500 mm 19,7 inRECTANGULAR (WIDTH) b =t = 150 mm 5,9 inRECTANGULAR (THICKNESS) d = 70 mm 2,8 in

MATERIAL :A36M fy = 36 Ksi

fu = 38 KsiELASTICITY (E) E = 29000 Ksi

3. ANALYSIS :- AISC LIMIT FLEXURAL YIELDING F11.1 SECTION :

Lb.d/t2 ≤ 0,08.E/Fy

1,56 < 64,44 (YIELDING LIMIT)

- RECTANGULAR BAR ( 2~@(150x70)) GEOMETRIC PROPERTIES :Sx = 2*(b.d2)/6

= 14,95 in3

Zx = 2*(b.d2)/4

= 22,43 in3

- NOMINAL FLEXURAL STRENGTH (φb.Mn):

Mn = Mp

Mn = Fy.Zx

Fy.Zx ≤ 1,6 My

1,6 My = 1,6.Fy.Sx

= 861,2 Kip.inMp = Fy.Zx

= 807,3 Kip.inUSE Mn = Mp = 807,3 Kip.in

φb.Mn = 726,6 Kip.in= 8,31 Ton.m

- FORK CAPACITY (1 SET= 2 FORK):Mu ≤ φb.Mn

16,12 > 8,31 (NO ADEQUATED)

- SUMMARY DESIGN :

TABLE: Fork design Summary (LRFD DESIGN)No Rope Length (x) Rope Span (S) Lpipe-2 W2 (LOAD) P1 P2 P3 1,4*P1 1,4*P2 1,4*P3 Mu φb Mn

Text (m) (m) (m) (Ton) (Ton) (Ton) (Ton) (Ton) (Ton) (Ton) (Ton.m) (Ton.m)1 1,050 4,500 1,600 10,000 2,82 0,931 1,889 0,566 0,00 1,303 2,645 0,793 16,11 8,31 NO OK

1,050 4,500 1,600 10,000 1,15 0,380 0,771 0,566 0,00 0,531 1,079 0,793 8,25 8,31 OK2 2,650 2,850 1,650 10,000 2,82 1,149 1,671 0,566 0,00 1,609 2,339 0,793 13,76 8,31 NO OK

2,650 2,850 1,650 10,000 1,40 0,571 0,830 0,566 0,00 0,799 1,161 0,793 8,26 8,31 OK3 1,050 4,500 1,600 6,000 3,00 1,650 1,350 0,566 0,00 2,310 1,890 0,793 13,76 8,31 NO OK

1,050 4,500 1,600 6,000 1,50 0,825 0,675 0,566 0,00 1,155 0,945 0,793 8,30 8,31 OK4 2,650 2,850 1,650 6,000 1,50 1,019 0,481 0,566 0,00 1,426 0,674 0,793 8,53 8,31 NO OK

2,650 2,850 1,650 6,000 1,43 0,971 0,459 0,566 0,00 1,360 0,642 0,793 8,27 8,31 OK

PROPERTIES :

L-(S)-(x)(m)

(W2)-P1-P2

= 0 RESULT