S-Tank Engineering	TANK STRENGTH CALCULATION	Page	[$CP] / [$TP]
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1. TANK DESIGN DATA

Description			Inner Tank				Outer Tank
Tank Containment			API 625 SINGLE Containment
Design Code			API 620 12th Edition Annex R (ADDENDUM 1, NOV. 2014)
Content Name			LPG
Specific Gravity (Density)		SG =	0.581 (p = 581 kg/kg/cm³)
Nominal capacity		Vnom =	46633.0	m³	27094	Ton@SG
Storage capacity		VSto =	44705.2	m³	25974	Ton@SG
Net working capacity		Vnet =	40633.5	m³	23608	Ton@SG
Vapor Space capacity		Vapor =	1927.8	m³	4.13	% Vapor Space Ratio VSR = Vapor / Vnom * 100
Tank inside diameter		D =	46000	mm	150.919	ft	48000	mm	157.480	ft
Tank Height		HT =	28060	mm	92.060	ft	31000	mm	101.706	ft
High High Liquid Level		HHLL =	26900	mm	88.255	ft	25168	mm	82.572	ft
High Liquid Level		HLL =	26550	mm	87.106	ft	25168	mm	82.572	ft
Low Liquid Level		LLL =	2450	mm	8.038	ft	25168	mm	82.572	ft
Hydrostatic Test Level		HTL =	26900	mm	88.255	ft	22826	mm	74.888	ft
Design Temperature			-45.0	ºC	7.0	ºF	65.0	ºC	68.1	ºF
Operating Temperature			-45.0	ºC	7.0	ºF	40.0	ºC	54.2	ºF
Design pressure (Internal)							0.153	kg/cm²	15.000	kPa.g
Design pressure (External)							0.002	kg/cm²	0.200	kPa.g
Operating pressure							0.088	kg/cm²	8.600	kPa.g
Pneumatic Test pressure							0.191	kg/cm²	18.750	kPa.g
Shell Joint Efficiency			1.00				1.00
Insulation			Yes (Cold)
Max. Boil - off Rate			0.05 wt% / Day
Design Wind Speed (3-sec.gust)			34 m/sec
Seismic Design			ASCE 7-10 Ss=0.00 g, S1=0.00 g, SOIL=D, Importance Factor I=1.25
Material			Inner Tank				Outer Tank
Shell Plate			A553-TYPE1				A553-TYPE1
Annular Plate			A553-TYPE1				A553-TYPE1
Bottom Plate			A553-TYPE1				A553-TYPE1
Roof	Type		Suspended Deck				Dome Roof
	Plate						A36
	Structure						A36
Wind Stiffener			-				A36
Compression Ring			-				A36
Corrosion Allowance			Inner Tank				Outer Tank
Shell Plate			0.00	mm	0.000	in	1.50	mm	0.059	in
Annular Plate			0.00	mm	0.000	in	1.50	mm	0.059	in
Bottom Plate			0.00	mm	0.000	in	1.50	mm	0.059	in
Suspended Deck			0.00	mm	0.000	in
Roof Plate							0.00	mm	0.000	in
Roof Structure							0.75	mm	0.030	in

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2.TANK CAPACITY CALCULATION

2.1) SKETCH DRAWING

A. Design specification
	Design Specific Gravity & Density	SG =	0.581	ρ =	581	kg/m³
	Tank inside diameter	Di =	46000	mm	150.919	ft
	Height from bottom to top	Ht =	28060	mm	92.060	ft
	Critical High liquid level	CHLL =	26900	mm	88.255	ft
	High high liquid level	HHLL =	26900	mm	88.255	ft
	High liquid level	HLL =	26550	mm	87.106	ft
	Low liquid level	LLL =	2450	mm	8.038	ft
	Net Working Height ( Hnet = HLL - LLL )	Hnet =	24100	mm	79.068	ft

B. Nominal Capacity

	Vno = p * Di²/ 4 * Ht	Vno =	46633.0	m³	27093.8	Ton

D. Storage Capacity

	Vsto = p * Di²/ 4 * HLL	Vsto =	44705.2	m³	25973.7	Ton

C. Net working Capacity

	Vnet = p * Di²/ 4 * Hnet	Vnet =	40633.5	m³	23608.1	Ton

E. Vapor Space Volume (m³) and Vapor Space Ratio (%)
	Vapor = Vnom - Vsto	Vapor =	1927.8	m³	4.1	%

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API 적용코드 : cboAPI.ListIndex = [0] API 620 12 Edition

API 적용코드 : API 620 Annex_Q_OR_R = [ R ]

번호	Inner Tank	Outer Tank	Description
0	API 620 12th Edition Annex R		Design Code
1	LPG		Content Name
2	0.581		Content Specific Gravity
3	46633.0	56096.3	Storage Capacity
4		0.2	External Pressure(kPa)
5	Suspended Deck	Dome Roof	Type of Roof
6	46000	48000	Tank Inside Diameter
7	28060	31000	Tank Height
8	26900	25168	Design Liquid Level
9	26550	25168	Max. Liquid Level
10	2450	2450	Min. Liquid Level
11	41400	43200	Roof Radius
12	0	15.0	Deaign Pressure(kPa)
13	0	8.6	Operating Pressure(kPa)
14	-45	65	Design Temperature
15	-45	40	Operating Temperature
16	26900	22826	Hydrostatic Test Level
17	0	0	Pneumatic Test Pressure
18	0.05		Max. Boil-off Rate
19		34	Design Wind Speed
20		ASCE 7-10	Seismic Coefficient
21		1.41	(Roof) Dead Load
22		1.20	(Roof) Live Load
23		0	(Roof) Snow Load
24			Material
25	A553-TYPE1	A553-TYPE1	Shell Plate
26	A553-TYPE1	A553-TYPE1	Annular Plate
27	A553-TYPE1	A553-TYPE1	Bottom Plate
28	Suspended Deck	Dome Roof	SD:Single Deme, DD:Double Deme
29		A36	Roof Plate
30		A36	Roof Structure
31	-	A36	Shell Stiffener
32	-	A36	Compression Ring
33	BLANK	BLANK	Joint Efficiency
34	1.00	1.00	Shell Plate
35	1.00	0.7	Roof Plate
36		1.00	Compression Ring
37		0.35	Bottom Plate
38	1.0	1.0	Annular Plate

k	각부명칭 S(k)	번호	Inner Tank			Outer Tank
k	각부명칭 S(k)	번호	thk imt(k)	CA tt(i)	Wt(kg) tt(i+1)	thk omt(k)	CA tt(i+2)	Wt(kg) tt(i+3)
k=0	Shell	i= 0	imt(0) = 22.00	0.00	987.62	omt(0) = 20.00	1.50	853.93
k=1	Annular	i= 4	imt(1) = 12.00	0.00	11.27	omt(1) = 12.00	1.50	66.23
k=2	Bottom	i= 8	imt(2) = 8.00	0.00	160.31	omt(2) = 8.00	1.50	190.18
k=3	Roof Deck	i= 12	imt(3) =	0.00	0.00	omt(3) = 6.00	0.00	0.00
k=4	Roof Plate	i= 16	imt(4) = 5.00	0.00	0.00	omt(4) = 7.00	0.00	108.59
k=5	Roof Stru	i= 20	imt(5) =	0.00	0.00	omt(5) =	0.75	55.98
k=6	Shell Stiff	i= 24	imt(6) =		11.36	omt(6) =	0.00	5.27
k=7	Comp Ring.	i= 28	imt(7) =			omt(7) = 44.00	1.50	45.77

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3.1) Shell plate thickness at design condition				Material :		[A553-TYPE1]
	Diameter of tank inside	D =	46000	mm	46.000	m	1811.024	in
	Height of tank	Ht =	28060	mm	28.060	m	1104.724	in
	Design liquid level for shell th'k. calc.	DLL =	26900	mm	26.900	m	88.255	ft
	High liquid level	HLL =	26550	mm	26.550	m	87.106	ft
	Corrosion allowance	C.A =	0.000	mm			0.000	in
	Design specific gravity	G =	0.581	ρ=	581.0	kg/m³	36.271	lb/ft³
	Tank radius, Rc = D / 2	Rc =	23000.0	mm	23.000	m	905.512	in
	Joint efficiency of Shell Weld	E =	1.000
	Minimum Tensile strength	Fu =	689.476	Mpa	Fu	=	100000	psi
	Minimum Yield strength	Fy =	399.896	Mpa	Fy	=	58000	psi
	Allowable Stress for Design Condition	Sts =	229.823	Mpa	Sts	=	33333	psi
	Sts = Min( Fu * 0.3, Fy * 0.6)
	Design internal pressure	Pg =	0.000	mbar			0.000	psi
	Liquid head pressure, PL = G * HL	PL =	See Below 3.1.1 Table(a)
	Total pressure, P = Pg + PL	P =	See Below 3.1.1 Table(a)

For cylindrical sidewalls of a vertical tank : as per API 620 5.10.2.5 c) Eqn. (10)(11),

T2 = P x Rc

T1 = Meridional (Longitudinal) unit force. (lb/in)

T2 : Latitudinal (Circumferential) unit force. (lb/in)

Required shell thickness calculation : as per API 620 5.10.3.2 Eqn. (16),

td =

T2
　Sts × E

＋ CA

td : Design thickness of shell. (mm)

tu : Used (Selected) thickness of shell. (mm)

3.1.1) Inner Tank Shell Plate Thickness Calculation (Design Condition)

Shell Width		HT	PL (design)		P	T2	t2		UsedThk	Weight	Wtr	EN 14620-2 Thickness (mm)
No.	mm	mm	mmWTR	inWTR	psi	lb/in	inch	mm	mm	Ton	mm	e	et	tMin
8	3360	28060	2840	111.811	2.347	2125.24	0.064	1.626	12.0	45.81	3360	1.241	1.684	8.0
7	3450	24700	6200	244.094	5.124	4639.84	0.139	3.531	12.0	47.037	3450	2.884	3.912	8.0
6	3450	21250	9650	379.921	7.975	7221.46	0.217	5.512	12.0	47.037	3450	4.57	6.2	8.0
5	3450	17800	13100	515.748	10.826	9803.07	0.294	7.468	12.0	47.037	3450	6.256	8.488	8.0
4	3450	14350	16550	651.575	13.677	12384.69	0.372	9.449	14.0	54.879	2347	7.943	10.776	11.0
3	3450	10900	20000	787.402	16.528	14966.3	0.449	11.405	16.0	62.722	1681	9.629	13.063	13.0
2	3450	7450	23450	923.228	19.379	17547.92	0.526	13.36	18.0	70.565	1252	11.315	15.351	15.0
1	4000	4000	26900	1059.055	22.23	20129.53	0.604	15.342	21.0	95.457	987	13.001	17.639	18.0
0	28060	0	26900	1059.055	0	0	0	0	14.8	470.544	19977	END

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3.2) Shell plate thickness at Hydrostatic-Test condition				Material :		A553-TYPE1
	Diameter of tank inside	D =	46000	mm	46.000	m	1811.024	in
	Height of tank	Ht =	28060	mm	28.060	m	1104.724	in
	Design liquid level	DLL =	26900	mm	26.900	m	88.255	ft
	Hydro test level, HTL = DLL1.25G	HTL =	26900	mm	26.900	m	88.255	ft
	Tank radius, Rc = D / 2	Rc =	23000.0	mm	23.000	m	905.512	in
	Joint efficiency of Shell Welding	E =	1.000
	Test Water Specific Gravity	G =	1.000	ρ=	1000.0	kg/m³	62.428	lb/ft³
	Minimum Tensile strength	Fu =	689.476	Mpa	Fu	=	100000	psi
	Minimum Yield strength	Fy =	399.896	Mpa	Fy	=	58000	psi
	Allowable Stress for Test Condition	Sts =	339.912	Mpa	Sts	=	49300	psi
	Sts = Min(0.55Fu, 0.75Fy), Annex Q.6.1.2
	Pnematic test pressure, Pt=1.25 x Pg	Pt =	0.000	mbar			0.000	psi
	Liquid head pressure, PL = G * HL	PL =	See Below 3.1.1 Table(a)
	Total pressure, P = Pt + PL	P =	See Below 3.1.1 Table(a)


	For cylindrical sidewalls of a vertical tank : as per API 620 5.10.2.5 c) Eqn. (10)(11),
	T2 = P x Rc	T1 = Meridional (Longitudinal) unit force. (lb/in)
	T2 = P x Rc	T2 : Latitudinal (Circumferential) unit force. (lb/in)

	Required shell thickness calculation : as per API 620 5.10.3.2 Eqn. (16),
	tt = T2 / (Sts x E)	td : tt : Hydrostatic test thickness of shell. (mm)
		tu : Used (Selected) thickness of shell. (mm)

3.2.1) Inner Tank Shell Plate Thickness Calculation (Hydrostatic Test Condition)

Shell Width		HT	PL (hydro)		P	T2	t2		UsedThk td	Weight	Wtr
No.	mm	mm	mmWTR	inWTR	psi	lb/in	inch	mm	mm	Ton	mm
8	3360	28060	2840	111.811	4.039	3657.36	0.074	1.88	12.0	45.81	3360
7	3450	24700	6200	244.094	8.818	7984.8	0.162	4.115	12.0	47.037	3450
6	3450	21250	9650	379.921	13.726	12429.06	0.252	6.401	12.0	47.037	3450
5	3450	17800	13100	515.748	18.633	16872.41	0.342	8.687	12.0	47.037	3450
4	3450	14350	16550	651.575	23.54	21315.75	0.432	10.973	14.0	54.879	2347
3	3450	10900	20000	787.402	28.447	25759.1	0.522	13.259	16.0	62.722	1681
2	3450	7450	23450	923.228	33.354	30202.45	0.613	15.57	18.0	70.565	1252
1	4000	4000	26900	1059.055	38.261	34645.79	0.703	17.856	21.0	95.457	987
0	28060	0	26900	1059.055	0	0	0	0	14.8	470.544	19977

3.1.1) Inner Tank : Pg = 0 psi

No.	Shell Height		Design Condition									Hydrostatic Condition									Design		Hydro		Min.Thk	Used.Thk	Shell
	W	HT	Liquid Head(PL)		P	W	T1	T2	Sts	t1	t2	Water Level		P	W	T1	T2	Sts	t1	t2	t1	t2	t1	t2	tMin	UsedThk	Weight	부족두께	Wtr
	(mm)	(mm)	(mmWTR)	(inWTR)	(psi)	(lb)	(lb/in)	(lb/in)	(psi)	(inch)	(inch)	(mm)	(inch)	(psi)	(lb)	(lb/in)	(lb/in)	(psi)	(inch)	(inch)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(Ton)	(mm)	(mm)
	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28
8	3360	28060	2840	111.811	2.347	6045527	0.042	2125.24	33333	0	0.064	2840	111.811	4.039	10405382	0	3657.36	49300	0	0.074	0	1.626	0	1.88	7.938	12	45.81	4.062	3360
7	3450	24700	6200	244.094	5.124	13197981	0.213	4639.84	33333	0	0.139	6200	244.094	8.818	22715975	0	7984.8	49300	0	0.162	0	3.531	0	4.115	7.938	12	47.037	4.062	3450
6	3450	21250	9650	379.921	7.975	20542019	0.215	7221.46	33333	0	0.217	9650	379.921	13.726	35356315	0.219	12429.06	49300	0	0.252	0	5.512	0	6.401	7.938	12	47.037	4.062	3450
5	3450	17800	13100	515.748	10.826	27886057	0.217	9803.07	33333	0	0.294	13100	515.748	18.633	47996656	0.196	16872.41	49300	0	0.342	0	7.468	0	8.687	7.938	12	47.037	3.313	3450
4	3450	14350	16550	651.575	13.677	35230095	0.218	12384.69	33333	0	0.372	16550	651.575	23.54	60636997	0.173	21315.75	49300	0	0.432	0	9.449	0	10.973	7.938	14	54.879	3.027	2347
3	3450	10900	20000	787.402	16.528	42574133	0.22	14966.3	33333	0	0.449	20000	787.402	28.447	73277337	0.15	25759.1	49300	0	0.522	0	11.405	0	13.259	7.938	16	62.722	2.741	1681
2	3450	7450	23450	923.228	19.379	49918171	0.222	17547.92	33333	0	0.526	23450	923.228	33.354	85917678	0.127	30202.45	49300	0	0.613	0	13.36	0	15.57	7.938	18	70.565	2.43	1252
1	4000	4000	26900	1059.055	22.23	57262209	0.223	20129.53	33333	0	0.604	26900	1059.055	38.261	98558019	0.105	34645.79	49300	0	0.703	0	15.342	0	17.856	7.938	21	95.457	3.144	987
0	28060	0	26900	1059.055	0	0	0	0	0	0	0	26900	1059.055	0	0	0	0	0	0	0	0	0	0	0	0	14.782	470.544	0	19977

3.1.2) Outer Tank : Pg = 2.1756 psi

No.	Shell Height		Design Condition									Hydrostatic Condition									Design		Hydro		Min.Thk	Used.Thk	Shell
	W	HT	Liquid Head(PL)		P	W	T1	T2	Sts	t1	t2	Water Level		P	W	T1	T2	Sts	t1	t2	t1	t2	t1	t2	tMin	UsedThk	Weight	부족두께	Wtr
	(mm)	(mm)	(mmWTR)	(inWTR)	(psi)	(lb)	(lb/in)	(lb/in)	(psi)	(inch)	(inch)	(mm)	(inch)	(psi)	(lb)	(lb/in)	(lb/in)	(psi)	(inch)	(inch)	(mm)	(mm)	(mm)	(mm)	(mm)	(mm)	(Ton)	(mm)	(mm)
	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28
10	900	31000	0	0	2.176	0	931.416	2056.06	33333	0.087	0.121	0	0	2.72	0	1188.424	2570.08	49300	0.024	0.052	2.21	3.073	0.61	1.321	7.938	35	37.36	27.062	29
9	3000	30100	0	0	2.176	0	931.416	2056.06	33333	0.087	0.121	0	0	2.72	0	1188.424	2570.08	49300	0.024	0.052	2.21	3.073	0.61	1.321	7.938	10	35.57	2.062	3000
8	3300	27100	2068	81.417	3.885	4793284	931.441	3670.87	33333	0.087	0.169	0	0	2.72	0	1188.424	2570.08	49300	0.024	0.052	2.21	4.293	0.61	1.321	7.938	10	39.12	2.062	3300
7	3300	23800	5368	211.339	6.612	12442141	931.422	6247.56	33333	0.087	0.246	3026	119.134	7.023	12071894	1187.959	6635.91	49300	0.024	0.135	2.21	6.248	0.61	3.429	7.938	10	39.12	2.062	3300
6	3300	20500	8668	341.26	9.339	20090999	931.402	8824.25	33333	0.087	0.324	6326	249.055	11.717	25236881	1188.1	11071.18	49300	0.024	0.225	2.21	8.23	0.61	5.715	7.938	10	39.12	1.77	3300
5	3300	17200	11968	471.181	12.066	27739856	931.383	11400.95	33333	0.087	0.401	9626	378.976	16.411	38401868	1188.24	15506.46	49300	0.024	0.315	2.21	10.185	0.61	8.001	7.938	12	46.95	1.815	1946
4	3300	13900	15268	601.102	14.793	35388714	931.363	13977.64	33333	0.087	0.478	12926	508.898	21.105	51566855	1188.38	19941.73	49300	0.024	0.404	2.21	12.141	0.61	10.262	7.938	15	58.69	2.859	1038
3	3300	10600	18568	731.024	17.52	43037571	931.344	16554.33	33333	0.087	0.556	16226	638.819	25.798	64731842	1188.048	24376.07	49300	0.024	0.494	2.21	14.122	0.61	12.548	7.938	17	66.52	2.878	735
2	3300	7300	21868	860.945	20.247	50686429	931.324	19131.03	33333	0.087	0.633	19526	768.74	30.492	77896829	1188.189	28811.34	49300	0.024	0.584	2.21	16.078	0.61	14.834	7.938	19	74.35	2.922	543
1	4000	4000	25168	990.866	22.974	58335286	931.305	21707.72	33333	0.087	0.71	22826	898.661	35.186	91061816	1188.329	33246.62	49300	0.024	0.674	2.21	18.034	0.61	17.12	7.938	20	94.86	1.966	572
0	31000	0	25168	990.866	0	0	0	0	0	0	0	22826	898.661	0	0	0	0	0	0	0	0	0	0	0	0	14.49	531.66	0	17763

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5. [INNER TANK] Top Girder calculation

	Refer to Guide to STORAGE TANK & EQUIPMENT
	The David Taylor model basin Formula is used to decide upon the pitching of the stiffeners on the tank shell.
	This is taken from the work of Windenburg and Trilling (Reference 18.4), some of which is based on test work
	carried out on behalf of the US Navy as far back as 1929.

　5-1) The number of stiffeners required to stabilise the shell is given by : (equ. 18. 11)

　　Ns = (He / Ls) - 1 = (19977 / 5664) - 1 = 2.53,　Ns　= 3 EA

　5-2) Total height of equivalent tank shell ( He = ΣWtr ) (equ. 18. 10) TABLE 5.1

No.	(Unit : mm)
No.	tn	W	tuniform	tactual	Wtr
8	12.0	3360	12.0	12.0	3360
7	12.0	3450	12.0	12.0	3450
6	12.0	3450	12.0	12.0	3450
5	12.0	3450	12.0	12.0	3450
4	14.0	3450	12.0	14.0	2347
3	16.0	3450	12.0	16.0	1681
2	18.0	3450	12.0	18.0	1252
1	21.0	4000	12.0	21.0	987

He = ΣWtr = Wtr1 + .. + Wtr8 =					19977


5-2) The maximum height of unstiffened side wall (Ls) (equ. 18. 10)
	Ls =	222.992	in	5664.0	mm

Where,
p = External pressure or Insulation pressure from annular space	p =	0.3556	psi	250	Mpa
(Min. value of STE's standard)	p =			0.00245	kg/m²
D = Inner tank diameter	D =	1811.024	in	46000	mm
F = Factor of safety	F =	2.0
E = Modulus of elasticity of (A553-TYPE1)	E =	28862502	psi	199000	Mpa
tmin= Thickness of the thinnest (top) shell course	m =	0.4724	in	12.000	mm
υ = Poisson's ratio	υ =	0.3
C.A = Corrosion Allowance	CA =	0.0000	in	0.000	mm

Shell No.	Stiff Loc. Level (mm)	Between Location L (mm)	Stiff 부착위치(U+B=W) to WELD(mm)	Top Angle (Stiff Size)	Section Area (cm²)	Unit Weight (kg/m)	Length (m)	Weight (Ton)	Ireqd < Iact (cm⁴)	Areqd < Aact (cm²)
8	▼27860	200	200(U)+ 3160(B)= 3360	BL12x190x100	34.80	27.32	145.3	3970.0	7010.00 < 7915.18	0.00 < 80.88
7	▼23070	4790	1630(U)+ 1820(B)= 3450	FB12 x 180	21.60	16.96	145.2	2463.0	2793.00 < 2852.58	30.00 < 67.68
6	▼18070	5000	3180(U)+ 270(B)= 3450	FB12 x 180	21.60	16.96	145.2	2463.0	2793.00 < 2852.58	30.00 < 67.68
4	▼12480	5590	1870(U)+ 1580(B)= 3450	FB12 x 180	21.60	16.96	145.2	2463.0	2793.00 < 2960.43	30.00 < 84.32
Top Girder & Stiff Weight :								11359.0	kg

5-3) The number of stiffeners required to stabilise the shell is given by : (equ. 18. 11)

　　Ns = ( He / Ls) - 1 = (19977 / 5664) - 1 = 2.53,　Ns　= 3 EA

Where,

5-4) Required inertia moment (equ. 18. 13) & Minimum required area (equ. 18. 14)

N=	Buckling waves number (min. N = 2, Max. N = 10)	N =	6.55
p=	External pressure or Insulation pressure from annular space	p =	0.3553	psi	0.00245	Mpa
	(Min. value of STE's technical standard)	p =	250	kg/m²
D=	Inner tank diameter	D =	1614.2	in	41000	mm
H=	Inner tank height	H =	990.2	in	25150	mm
F=	Factor of safety	F =	2.0
E=	Modulus of elasticity	E =	2.799E+07	psi	193000	Mpa
Tav	Average thickness of inner shell plate	tavg =	0.43	in	10.82	mm
Fa=	Allowable compressive stress (lb/in2)	Fa =	15000	psi	103.42	Mpa
CA=	Corrosion allowance (mm)	CA =	0.03	in	0.80	mm

5-5) Inner stiffener size &required section moment

C1=	Neutral axis of combined section.	1	2	3	4	5
Iact =	Actual moment of inertia of section.	1	2	3	4	5
Ireqd =	Required moment of inertia of section.	1	2	3	4	5
La=	Actual height of the tank associated with the particular stiffener	1	2	3	4	5
	(Acutal distance of stiffener & stiffener or stiffener & top shell)	1	2	3	4	5
a=	Web plate length (mm)	1	2	3	4	5
b=	Web plate thickness - CA (mm)	1	2	3	4	5
t=	Corroded shell thickness where stiffener is located	1	2	3	4	5

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11. Intermediate Wind Girder Calculation
11-1) [Outer TANK] Wind Girder (Stiffener) calculation

No.	(Unit : mm)
No.	tn	W	tactual	tuniform	Wtr
10	35.0	900	8.5	33.5	29.0
9	10.0	3000	8.5	8.5	3000.0
8	10.0	3300	8.5	8.5	3300.0
7	10.0	3300	8.5	8.5	3300.0
6	10.0	3300	8.5	8.5	3300.0
5	12.0	3300	8.5	10.5	1946.0
4	15.0	3300	8.5	13.5	1038.0
3	17.0	3300	8.5	15.5	735.0
2	19.0	3300	8.5	17.5	543.0
1	20.0	4000	8.5	18.5	572.0

HTR =ΣWtr = Wtr1 + .. + Wtr10 =					17763.0

11-2) Maximum unstiffened shell height (H1, Hsafe)
　

　　 Lmin = MYMIN(H1, Hsafe) = Min( 14924, 11515 ) = 11515 (mm)

11-3) The number of stiffeners required to stabilise the shell is given by : (equ. 18. 11)

　　Nstiff = ( HTR / Lmin ) - 1 = (17763 / 11515) - 1 = 0.54,　Nstiff　= 1 EA

Shell
No.

Stiff
Loc. Level
(mm)

Between
Location
L (mm)

Stiff 부착위치(U+B=W)
to WELD(mm)

Top Angle
(Stiff Size)

Section
Area
(cm²)

Unit Weight
(kg/m)

Length
(m)

Weight
(Ton)

Ireq < Iact
(cm⁴)

Zreq< Zact
(cm³)

Areq < Aact
(cm⁴)

Arstiff < Aastiff
(cm²)

▼21240

9760

2560(U)+ 890(B)= 3450

[BL]280x160x10

4300.00

34.54

152.6

5271.0

522.7 < 570.5

2265 < 9117

2507 < 6612

1254 < 4300

Wind Stiff. Weight :

5271.0

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4. [INNER TANK] Bottom plate and Annular plate of calculation

4.1) Bottom plate (API 620 SEC. 5.9.4.2)

1) Material of bottom plate

MATL :

A553-TYPE1

Bottom plate corrosion allowance

CA =

0.0000

inch

0.00

Min. thickness: (API 620 SEC. 5.9.4.2 [1/4 inch])

tbm =

0.1875

inch

4.76

2) Required bottom plate thickness

tbm+CA =

0.188

inch

4.76

Used thickness of bottom plate

tb_used =

0.315

inch

8.00

4.2) Annular plate

1) Design condition

Annular plate material

MATL :

A553-TYPE1

Design specific gravity of liquid content

Gp =

0.581

p =

581.0

kg/m³

Annular plate corrosion allowance

CA =

0.000

inch

0.00

Diameter of tank inside

D =

150.919

46.000

Nominal thickness for 1st shell course

t =

0.827

inch

21.00

Design liquid level

Hd =

88.255

26.900

2) Annular plate thickness

Minimum annular plate thickness, tb_min= 0.312(in)+ CA

tb_min =

0.312

inch

8.00

Used thickness of annular plate

tb =

0.472

inch

12.00

3) Design Stress in First Shell Course, Sd (psi)

Sd =

24336

psi

167.79

MPa

as per API 620 Table Q-4A Minimum Thickness for the Annular Bottom Plate: Steel Tanks, inch (mm)

Nominal Thickness of First Shell Course t, inch (mm)	Design Stress in First Shell Course, Sd (psi)
Nominal Thickness of First Shell Course t, inch (mm)	≤ 20,000	≤ 22,000	≤ 24,000	≤ 26,000
t ≤ 0.75 ( t ≤ 19.05 )	1/4 (6.35)	1/4 (6.35)	1/4 (6.35)	1/4 (6.35)
t ≤ 1.00 ( t ≤ 25.40 )	1/4 (6.35)	1/4 (6.35)	1/4 (6.35)	5/16 (7.94)
t ≤ 1.25 ( t ≤ 31.75 )	1/4 (6.35)	1/4 (6.35)	5/16 (7.94)	3/18 (9.53)
t ≤ 1.50 ( t ≤ 38,10 )	1/4 (6.35)	9/32 (7.14)	3/8 (9.53)	7/16 (11.11)

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4) Width of annular plate (API 620 R.3.5.1 and API 650 Annex E.6.2.1.1.2)
	Used annular plate thickness	tb =	8.0	mm	0.315	inch
	Design liquid level plus internal pressure head	H = Hd =	26900	mm	88.255	ft
	Design specific gravity of liquid	G =	0.5810	ρ=	581.0	kg/m³
	4-1) Min. annular plate width
	w = 390 · tb / (H · Gp)^0.5 (inch) 　　(w : width between the inside of the shell and any lap welded joint 　　 in the reminder of the bottom)	w =	653.0	mm	25.707	inch
	4-2) Min. required annular plate width due to seismic	wSei =	[#wSei_mm]	mm	[#wSei_in]	inch
	Min. radial width due to seismic (API 650 Annex E.6.2.1.1.2-1a) (Refer to Calculation 8.2.7)
	4-3) Annular plate width : wDes = Max. (w, wSei, 610) [mm]	=	[#wSei_mm]	mm	[#wSei_in]	inch
	4-4) Min. annular plate width Lmin = (Wo+t1+wDes+Ov)	Lmin =	806.0	mm	652.958	inch
	4-5) Used annular plate width	L =	[#wSei_mm]	mm	[#wSei_in]	inch

5) Dimensions for annular plate (unit: mm)

	L =	AAA	mm
	Di =	AAA	mm
	Wo =	AAA	mm
	t =	AAA	mm
	Aid =	AAA	mm
	Aod =	AAA	mm
	Qv =	AAA	mm
Weight of Bottom Plate	wt_bott =	AAA	kg	BBB	N
Weight of Annular Plate	wt_annu =	AAA	kg	BBB	N

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4. [OUTER TANK] Bottom plate and Annular plate of calculation

4.1) Bottom plate (API 620 SEC. 5.9.4.2)

1) Material of bottom plate

MATL :

A553-TYPE1

Bottom plate corrosion allowance

CA =

0.0591

inch

1.50

Min. thickness: (API 620 SEC. 5.9.4.2 [1/4 inch])

tbm =

0.1875

inch

4.76

2) Required bottom plate thickness

tbm+CA =

0.247

inch

6.26

Used thickness of bottom plate

tb_used =

0.315

inch

8.00

4.2) Annular plate

1) Design condition

Annular plate material

MATL :

A553-TYPE1

Design specific gravity of liquid content

Gp =

0.581

p =

581.0

kg/m³

Annular plate corrosion allowance

CA =

0.059

inch

1.50

Diameter of tank inside

D =

157.480

48.000

Nominal thickness for 1st shell course

t =

0.787

inch

20.00

Design liquid level

Hd =

82.572

25.168

2) Annular plate thickness

Minimum annular plate thickness, tb_min= 0.312(in)+ CA

tb_min =

0.371

inch

9.50

Used thickness of annular plate

tb =

0.472

inch

12.00

3) Design Stress in First Shell Course, Sd (psi)

Sd =

26969

psi

185.95

MPa

as per API 620 Table Q-4A Minimum Thickness for the Annular Bottom Plate: Steel Tanks, inch (mm)

Nominal Thickness of First Shell Course t, inch (mm)	Design Stress in First Shell Course, Sd (psi)
Nominal Thickness of First Shell Course t, inch (mm)	≤ 20,000	≤ 22,000	≤ 24,000	≤ 26,000
t ≤ 0.75 ( t ≤ 19.05 )	1/4 (6.35)	1/4 (6.35)	1/4 (6.35)	1/4 (6.35)
t ≤ 1.00 ( t ≤ 25.40 )	1/4 (6.35)	1/4 (6.35)	1/4 (6.35)	5/16 (7.94)
t ≤ 1.25 ( t ≤ 31.75 )	1/4 (6.35)	1/4 (6.35)	5/16 (7.94)	3/18 (9.53)
t ≤ 1.50 ( t ≤ 38,10 )	1/4 (6.35)	9/32 (7.14)	3/8 (9.53)	7/16 (11.11)

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4) Width of annular plate (API 620 R.3.5.1 and API 650 Annex E.6.2.1.1.2)
	Used annular plate thickness	tb =	8.0	mm	0.315	inch
	Design liquid level plus internal pressure head	H = Hd =	26900	mm	88.255	ft
	Design specific gravity of liquid	G =	0.5810	ρ=	581.0	kg/m³
	4-1) Min. annular plate width
	w = 390 · tb / (H · Gp)^0.5 (inch) 　　(w : width between the inside of the shell and any lap welded joint 　　 in the reminder of the bottom)	w =	675.1	mm	26.577	inch
	4-2) Min. required annular plate width due to seismic	wSei =	[#wSei_mm]	mm	[#wSei_in]	inch
	Min. radial width due to seismic (API 650 Annex E.6.2.1.1.2-1a) (Refer to Calculation 8.2.7)
	4-3) Annular plate width : wDes = Max. (w, wSei, 610) [mm]	=	[#wSei_mm]	mm	[#wSei_in]	inch
	4-4) Min. annular plate width Lmin = (Wo+t1+wDes+Ov)	Lmin =	1861.0	mm	675.056	inch
	4-5) Used annular plate width	L =	[#wSei_mm]	mm	[#wSei_in]	inch

5) Dimensions for annular plate (unit: mm)

	L =	AAA	mm
	Di =	AAA	mm
	Wo =	AAA	mm
	t =	AAA	mm
	Aid =	AAA	mm
	Aod =	AAA	mm
	Qv =	AAA	mm
Weight of Bottom Plate	wt_bott =	AAA	kg	BBB	N
Weight of Annular Plate	wt_annu =	AAA	kg	BBB	N

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10. INSULATION WEIGHT

번호	0	1	2	3	4	5	6	7	8
No.	Insualtion Location	Material	Thickness t x H(mm)	ID (m)	OD (m)	Insulation Area (m²)	Density (kg/m³)	Weight (kg)	TOTAL WEIGHT (Ton)
①	TANK BOTTOM "A"	DRY SAND (TOP)	t 50		46.000	1661.9	1520.0	126,305
②		FORM GLASS (MID)	t 450		46.000	1661.9	120.0	89,743
③		DRY SAND (BTM)	t 100		46.000	1661.9	1520.0	252,609	468.7
④	TANK BOTTOM "B"	PCB (TOP)	t 50	44.800	46.600	129.2	1200.0	7,753
⑤	TANK BOTTOM "B"	LEVEL CONCRETE	t 450	44.800	46.600	129.2	1200.0	69,776	77.5
⑥	TANK BOTTOM "C"	DRY SAND (TOP)	t 50	46.600	48.000	104.0	1520.0	7,905
⑦		FORM GLASS (MID)	t 450	46.600	48.000	104.0	120.0	5,617
⑧		DRY SAND (BTM)	t 100	46.600	48.000	104.0	1520.0	15,811	29.3
⑩	SUSPENDED DECK	FIBER_GLASS	t 600		46.600	1705.5	24.0	24,560	24.6
⑪	ANNULAR SPACE	PERLITE (TOP)	t: 2500 x H:3140	43.000	48.000	357.4	55.0	61,715
⑫		PERLITE (MIDDLE)	t: 900 x H:28060	46.200	48.000	133.2	55.0	205,524
⑬		RESILIENT_BLANKET	t: 100 x H:28060	46.000	46.200	14.5	17.5	7,112	274.4
Total Insulation Weight (Ton)									874.5

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12. DOUBLE TANK THERMAL TRANSFER CALCULATION

원본위치 : D:/0000_SGP_LNG/SGP LNG BOG 계산 Dia_61600_Rev_2_20190213_조현범.xlsm

STANK_LNG_THERMAL_TRANSFER_FORMULA_0.png

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13. DOUBLE TANK THERMAL TRANSFER CALCULATION

원본위치 : D:/0000_SGP_LNG/SGP LNG BOG 계산 Dia_61600_Rev_2_20190213_조현범.xlsm

STANK_LNG_THERMAL_TRANSFER_FORMULA.png

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14. OMAN SALALAH AMMONIA TANK THERMAL ANALYSIS REPORT ( by ANSYS )

원본위치 : D:/2_프로젝트/00_오만_SALALAH/기술영업송부/OMAN AMMONIA TANK 열전달 해석_기술연구소_장덕인

STANK_THERMAL_TRANSFER_ANA1.png

STANK_THERMAL_TRANSFER_ANA_UPR.png

STANK_THERMAL_TRANSFER_ANA_BTM.png

STANK_THERMAL_TRANSFER_ANA2.png

STANK_THERMAL_TRANSFER_ANA0.png

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15. PC-WALL TYPE LNG THERMAL ANALYSIS REPORT ( by ANSYS )

원본위치 : D:/0000_SGP_LNG/SGP LNG BOG 계산 Dia_61600_Rev_2_20190213_조현범.xlsm

STANK_LNG_THERMAL_TRANSFER_CASE_A_55degC.png

STANK_LNG_THERMAL_TRANSFER_CASE_B_65degC.png

STANK_LNG_THERMAL_TRANSFER_CASE_B_75degC.png

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10. LOADING DATA

1. TANK INSULATION MATERIAL AND DENSITY

ZONE NO.	LOCATION	INSULATION MATERIAL	Thickness T (mm)	Density p (m³)
ZR	SUSPENDED DECK	FIBER GLASS	300	24.0
ZS	SHELL (ANNULAR SPACE)	RESILIENT BLANKET	200	17.5
		PERLITE POWDER	700	55.0
		P.U.F	100	45.0
ZBA	INNER TANK AREA "A"	DRY SAND (Upper)	50	1520
		FOAM GLASS (Middle)	300	120
		DRY SAND (Lower)	50	1520
ZBB	INNER SHELL BOTTOM "B"	LEVEL CONCRETE (v)	100	1200
		PERLITE CONCRETE BLOCK (PCB)	250	1200
		LEVEL CONCRETE (Lower)	100	1200

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1. TANK DESIGN CONDITION

1) Storage capacity

Vsto =

10564

m³ (6,000 ton)

2) Design prεssure

Pi =

0.112

kg/cm²G - -0.005 kg/cm²G

3) Max. design liquid level

DLL =

23500

4) Design density

p =

568

kglm³

5) Design temperature

T =

-104

~oC - Ambient

6) Seismic Factor

CS =

0.148

(horizontal), 0.0 (vertical)

　　Refer to Doc.No.N4189-D-Ol

　　　Calculation of Tank Main Components

7) Wind Design Wind Speed

V =

m/sec

　　Referto Doc.No. N4189-D-Ol

　　　Calculation of Tank Main Components

8) Hydrostatic test level

HTL =

16685

9) Pneumatic test Pressure

PTest =

0.14

g/cm²G (1.25 x 0.112kg/cm 2G)

10) Dimension (mm)

Description	Symbol	Inner Tank	Outer Tank	Unit
Tank inside diameter	Di =	24000	25000	mm
Tank height	HT =	24300	26320	mm
Roof radius (Rro=0.8*D)	Rro =	-	20640	mm

11) Insulation / Insulation Thickness

Deck	: Loose Perlite	250	mm
Shell	: Fiberglass + Loose Perlite	900	mm
Bottom	: Foamglass + Dry Sand + Concrete	500	mm

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4 CALCULATION OF LOADING

4.1 Liquid Head Pressure : 1A
	1A = UL x HI x 9.80665 x 10³
	= 568 x 23.5 x 9.80665 x 10³ = 130.9 kN/m²
	Where
	GL : Design density = 568 kg/m³
	Hl : Max. design liquid level = 23.5 m

4.2 lncreased Bottom Pressure Due to Seismic 1B
	1) Impulsive pressure : P1
	P1 = 0.01051 N/mm² = 10.51 kN/m²
	2) Convective pressure : P2
	P2 = 0.000 13N/mm² 0.13 kN/m²
	3) Tota1 bottom pressure due to seismic : 1B
	1B = Pl + P2 10.51 + 0.13 = 10.64 kN/m²
	Above each values are calculated in accordance with "BASIS OF SEISMIC DESIGN
	PROVISIONS FOR WELDED STEEL OIL STORAGE TANKS"
	(by R.S.Wozniak and W.W.Mitchell)

4.3 Water Head Pressure at Hydrostatic Test : 2A
	2A = Gw x Hw x 9.80665 x 10-3
	= 1,000 x 16.685 x 9.80665 x 10³ = 163.7 kN/m²
	Where
	Gw : Density ofwater = 1,000 kg/m³
	Hw : Hydrostatic test leve1 = 16.685 m

4.4 Design Pressure : 3A
	3A = 11.0 kN/m² (0.112 kg/cm²G)

4.5 Line Load Due to 3A: 3B
	3B = D²/ 4 x 3A = 25.814 x 11.0 = 71 kN/m (upward load)

4.6 Pneumatic Test Pressure : 4 A
	4A = 11.0 x 1.25 = 13.75 kN/m² (0.14 kg/cm²G)

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16. Weight Summary (INNER TANK)

DESCRIPTION	WEIGHT		MATERIAL / SIZE (특기)	No.
DESCRIPTION	(ton)	(kN)	MATERIAL / SIZE (특기)	No.
1) Shell				1, 1
Shell plate	470.5	4614.0	A553-TYPE1 t: 21 ~ 12 mm	2, 2
Top girder and Interm. stiffener	11.4	111.8	A553-TYPE1 Q'TY : 4 RING	3, 5
Shell Nozzle (In Tank) Pipe & Att't	10.1	99.0	확인필요(중요)	4, 6
Internal ladder supported by shell	5.6	54.9	확인필요(중요)	5, 7
Stairway, platform, accessory	5.6	54.9	확인필요(중요)	6, 8
External ladder	11.2	109.8	확인필요(중요)	7, 9
Internal ladder supported by shell	10.1	99.0	확인필요(중요)	8, 10
Pipe & support For Cool Down Ring	10.1	99.0	확인필요(중요)	9, 12
Anchor Strap and pad	16.8	164.8	확인필요(중요)	10, 14
Others	5.6	54.9	확인필요(중요)	11, 15
Sub-Total	557.0	5462.3		12, 20
2) Bottom				13, 21
Annular plate	11.1	108.9	A553-TYPE1 t12 x 806 mm	14, 22
Bottom plate	100.0	980.7	A553-TYPE1 t8 x2438x9144 mm	15, 23
Others	4.5	44.1	확인필요(중요)	16, 26
Sub-Total	115.6	1133.6		17, 30
[INNER TANK] EMPTY WEIGHT (1)	673	6,596	(1)	18, 61
[LOADING DATA]
				19, 62
LIQUID CONTENTS WEIGHT (B)	25,974	254,715	Wco = Vsto(44705.2m³) x SG(0.581)	20, 63
TEST WATER WEIGHT (C)	44,705	438,408	Wtest = πD²/4 HTL(26.9m)	21, 64

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16. Weight Summary (OUTER TANK)

DESCRIPTION	WEIGHT		MATERIAL / SIZE (특기)	No.
DESCRIPTION	(ton)	(kN)	MATERIAL / SIZE (특기)	No.
1) Shell				1, 1
Shell Plate	531.7	5214.2	A553-TYPE1 t:20~10mm, Top Shell:35.0 mm	2, 2
Intermediate wind girder	5.3	52.0	A553-TYPE1	3, 4
Shell Nozzle (In-Tank Pipe) & All Att't	11.2	109.8	확인필요(중요)	4, 5
Annular Space Stairway, platform, acc'y	13.5	132.4	확인필요(중요)	5, 6
Annular Space ladder	4.5	44.1	확인필요(중요)	6, 7
Internal ladder supported by shell	5.6	54.9	확인필요(중요)	7, 8
Water spray	16.8	164.8	확인필요(중요)	8, 9
External(internal) Pipe Support	9.0	88.3	확인필요(중요)	9, 10
Roof handrail supported by shell	2.2	21.6	확인필요(중요)	10, 11
Anchor strap or Anchor Bolts	16.8	164.8	확인필요(중요)	11, 12
Others	5.6	54.9	확인필요(중요)	12, 13
Sub-Total	622.2	6101.7		13, 20
2) Bottom				14, 21
Annular plate	26.1	256.0	A553-TYPE1 t12 x 1861 mm	15, 22
Bottom plate	99.5	975.8	A553-TYPE1 t8 x2438x9144 mm	16, 23
Cool Down Ring Pipe & support	7.9	77.5	확인필요(중요)	17, 25
Pipe Support (+Annular Space)	4.5	44.1	확인필요(중요)	18, 26
Others	3.4	33.3	확인필요(중요)	19, 27
Sub-Total	141.4	1386.7		20, 30
3) Roof				21, 31
Roof Plate	108.6	1065.0	A36 Used Thk: 7.0 mm	22, 32
Roof Compression ring	45.8	449.1	A36 t38x W:1040x 147m	23, 33
Roof Rafter & Girder	56.0	549.2	A36	24, 34
Hoist ring beam	17.3	169.7	A36 2 Ring Beam	25, 35
Roof gauging platform & Acc'y	44.1	432.5	확인필요(중요)	26, 36
Roof around P/F & walk way & Acc'y	18.9	185.3	확인필요(중요)	27, 37
Water spray system	33.7	330.5	확인필요(중요)	28, 38
Suspended deck (plate & beam)	28.0	274.6	LTCS OR S.S (FRAME포함)	29, 39
Deck hanger rod and acc'y	3.9	38.2	SS304 RB19 : ROUND BAR	30, 40
Top disc., column base & clip	39.3	385.4	확인필요(중요)	31, 41
Roof Crane Structure (For pump maintenance)	2.2	21.6	확인필요(중요)	32, 42
Roof nozzle and dipped pipe	33.7	330.5	확인필요(중요)	33, 43
Sub-Total	431.5	4231.6		34, 50
4) Shell & Bottom & Roof insulation				35, 51
Shell side ( Annular Space )	0.1	1.0	확인필요(중요)	36, 52
Bottom side	0.1	1.0	확인필요(중요)	37, 53
Roof side	0.1	1.0	확인필요(중요)	38, 54
Sub-Total	0.3	2.9		39, 60
[OUTER TANK] EMPTY WEIGHT (2)	1,195	11,723		40, 61
[LOADING DATA]
[INNER/OUTER TANK] EMPTY WEIGHT (A)	1,868	18,319	(A)=(1)+(2)	41, 62
LIQUID CONTENTS WEIGHT (B)	25,974	254,715	Wco = Vsto(44705.2m³) x SG(0.581)	42, 63
TEST WATER WEIGHT (C)	44,705	438,408	Wtest = πD²/4 HTL(26.9m)	43, 64
OPERATING WEIGHT (D)	27,842	273,034	(D)=(A)+(B)	44, 65
HYDROSTATIC-TEST WEIGHT (E)	46,573	456,727	(E)=(A)+(C)	45, 66

[$PAGE_HEADER]

ROOF STRUCTURE CALCULATION

1. SKETCH DRAWING

Tank Dia.	D =	48000	mm
Tank Roof Radius	Dr =	43200	mm
Tank Sectional Area	SArea =	1809.557	m㎡
Tank ROOF TOTAL WEIGHT	Wtotal =	259600	kg	259600	kN
Dead Load (DL = Wtotal / SArea )	DL =	143.5	kg/㎡	1.41	kPa
Live Load	Lr =	122.4	kg/㎡	1.2	kPa
Snow Load	S =	0.0	kg/㎡	0	kPa
External Load	Pe =	20.4	kg/㎡	0.2	kPa
Roof Structure Design Load, Wr = Max[DL+Pv+0.4Max(Lr, Sn), DL+0.4Pv+Max(Lr,Sn)] x 5% Up	Wr =	288.0	kPa	2.824	kPa

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1. ALLOWABLE STRESS

2. RAFTER CALCULATION

No.	QTY	R1	R2	Ld(R2-R1)	Hr	X	Y	K	Angle
No.	EA	cm	cm	cm	cm	cm	cm	cm²	deg.
#1	30	450.0	970.26	520.26	86.9	291.4	40.59	3155312	5.979
#2	60	970.3	1476.05	505.79	149.6	269.3	71.28	5129589	12.979
#3	60	1476.1	1959.84	483.79	210.1	251.2	100.33	6839260	19.979
#4	60	1959.8	2400.00	440.16	257.9	223.6	122.24	8138877	26.979

No.	Wf	Pu	Qu	V	Hf	Vx	Mf	F
No.	kg	kg/cm	kg/cm	kg	kg	kg	kg-cm	kg
#1	610.73	2.714	3.138	2839.19	9516.20	1657.76	-68215	9659.51
#2	1419.60	2.926	1.525	3285.44	7735.24	2316.87	-53200	8074.76
#3	3285.44	4.452	1.459	5792.04	10313.36	4498.71	-61087	11251.84
#4	5792.04	5.911	1.327	8685.88	12273.14	7188.79	-52061	14223.52

No.	Mark	SIZE	A	I	e1	e2	r	Q'ty	Length	Uwt	Weight
No.	Mark	SIZE	cm²	cm⁴	cm	cm	cm	EA	cm	kg	kg
#1	Main	H194X150X6X9	31.9	2228	9.63	9.63	8.358	30	527.79	30.6	4845.1
#2	Main	H194X150X6X9	31.9	2228	9.63	9.63	8.358	30	527.79	30.6	4845.1
#2	Sub	H194X150X6X9	31.9	2228	9.63	9.63	8.358	30	527.79	30.6	4845.1
#3	Main	H194X150X6X9	31.9	2228	9.63	9.63	8.358	30	527.79	30.6	4845.1
#3	Sub	H194X150X6X9	31.9	2228	9.63	9.63	8.358	30	527.79	30.6	4845.1
#4	Main	H194X150X6X9	31.9	2228	9.63	9.63	8.358	30	510.43	30.6	4685.8
#4	Sub	H194X150X6X9	31.9	2228	9.63	9.63	8.358	30	510.43	30.6	4685.8

No.	Mark	SIZE	Ln	L/r	Fe	fc	fbt	fbc	Fcr	Fbt	Fbc	SRc=	SR₁=	SR₂=	SR=
No.	Mark	SIZE	cm	<300	kg/cm²	kg/cm²	kg/cm²	kg/cm²	kg/cm²	kg/cm²	kg/cm²	fc/Fcr	fbt/Fbt	fbc/Fbc	SRc+Max (SR1,2)
#1	Main	H194X150X6X9	527.79	63.14	5048.19	302.94	294.74	-294.74	1228.72	1518.66	599.32	0.25	0.19	0.49	0.74
#1	Sub	H194X150X6X9	527.79	63.14	5048.19	302.94	294.74	-294.74	1228.72	1518.66	599.32	0.25	0.19	0.49	0.74
#2	Main	H194X150X6X9	527.79	63.14	5048.19	253.24	229.86	-229.86	1228.72	1518.66	599.32	0.21	0.15	0.38	0.59
#2	Sub	H194X150X6X9	527.79	63.14	5048.19	253.24	229.86	-229.86	1228.72	1518.66	599.32	0.21	0.15	0.38	0.59
#3	Main	H194X150X6X9	527.79	63.14	5048.19	352.88	263.94	-263.94	1228.72	1518.66	599.32	0.29	0.17	0.44	0.73
#3	Sub	H194X150X6X9	527.79	63.14	5048.19	352.88	263.94	-263.94	1228.72	1518.66	599.32	0.29	0.17	0.44	0.73
#4	Main	H194X150X6X9	510.43	61.07	5397.29	446.08	224.95	-224.95	1245.51	1518.66	619.70	0.36	0.15	0.36	0.72
#4	Sub	H194X150X6X9	510.43	61.07	5397.29	446.08	224.95	-224.95	1245.51	1518.66	619.70	0.36	0.15	0.36	0.72

3. RING GIRDER CALCULATION

No.	SIZE	A	I	e1	e2	r	Ln	Length	Uwt	Weight
No.	SIZE	cm²	cm⁴	cm	cm	cm	cm	cm	kg	kg
#1	L200x200x15	57.8	2180	5.46	14.54	6.144	94.2	2827.43	45.3	1280.8
#2	L200x200x25	93.8	3420	5.86	14.14	6.040	203.2	6096.31	73.6	4486.9
#3	L200x200x20	76.0	2820	5.67	14.33	6.091	309.1	9274.30	59.7	5536.8
#4	L250x250x25	119.4	6950	7.10	17.90	7.629	410.5	12314.03	93.7	11538.2

No.	Angle	Rrg	α	β	Ho	Hi	MAo	MBo	MAi	MBi	TAo	TBo	TAi	TBi
No.	deg	cm	rad	rad	kg	kg	kg-cm²	kg-cm²	kg-cm	kg-cm	kg	kg	kg	kg
#1	12.000	450.0	0.105	0.000	9516.2	0.0	74795	-37418	0	0	45270	45520	0	0
#2	6.000	970.3	0.052	0.105	7735.2	9516.2	65507	-32758	-161267	80678	73799	73900	-45270	-45520
#3	6.000	1476.1	0.052	0.052	10313.4	7735.2	132870	-66444	-99656	49835	98395	98530	-73799	-73900
#4	6.000	1959.8	0.052	0.052	12273.1	10313.4	209944	-104986	-176420	88222	117093	117253	-98395	-98530

No.	M1	M2	T1	T2	fbo	fbi	fbo	fbi
No.	kg-cm²	kg-cm²	kg	kg	kg/cm²	kg/cm²	kg/cm²	kg/cm²
#1	74795	-37418	45270	45520	187.33	-498.86	-93.72	249.57
#2	146185	-194025	28279	28630	250.48	-604.40	-332.45	802.20
#3	182705	-166100	24495	24732	367.35	-928.43	-333.97	844.05
#4	298166	-281406	18562	18858	304.60	-767.94	-287.48	724.77

No.	L/r	Fe	fao	fai	Fcr	gfact	Fbc	SRo	SRi
No.	<300	kg/cm²	kg/cm²	kg/cm²	kg/cm²		kg/cm²
#1	15.34	85540	783.90	788.22	1496.97	62.83	1518.66	0.647	0.855
#2	33.64	17782	301.64	305.38	1427.97	81.28	1518.66	0.376	0.742
#3	50.75	7815	322.31	325.42	1323.49	154.57	1518.66	0.485	0.857
#4	53.80	6954	155.46	157.94	1301.46	164.19	1518.66	0.320	0.627

시작시간 = [2024-12-05 09:33:59.0129]
종료시간 = [2024-12-05 09:33:59.0133]

API 적용코드 : cboAPI.ListIndex = [0] API 620 12 Edition

API 적용코드 : API 620 Annex_Q_OR_R = [ R ]

Ns = (He / Ls) - 1 = (19977 / 5664) - 1 = 2.53, Ns = 3 EA

Ns = ( He / Ls) - 1 = (19977 / 5664) - 1 = 2.53, Ns = 3 EA

Lmin = MYMIN(H1, Hsafe) = Min( 14924, 11515 ) = 11515 (mm)

Nstiff = ( HTR / Lmin ) - 1 = (17763 / 11515) - 1 = 0.54, Nstiff = 1 EA

HTML 특수문자 리스트

12. DOUBLE TANK THERMAL TRANSFER CALCULATION

13. DOUBLE TANK THERMAL TRANSFER CALCULATION

14. OMAN SALALAH AMMONIA TANK THERMAL ANALYSIS REPORT ( by ANSYS )

15. PC-WALL TYPE LNG THERMAL ANALYSIS REPORT ( by ANSYS )

　　Ns = (He / Ls) - 1 = (19977 / 5664) - 1 = 2.53,　Ns　= 3 EA

　　Ns = ( He / Ls) - 1 = (19977 / 5664) - 1 = 2.53,　Ns　= 3 EA

　　 Lmin = MYMIN(H1, Hsafe) = Min( 14924, 11515 ) = 11515 (mm)

　　Nstiff = ( HTR / Lmin ) - 1 = (17763 / 11515) - 1 = 0.54,　Nstiff　= 1 EA