HomeMy WebLinkAboutSDP 2022-0003; FPC RESIDENTIAL; RESTRAINED JOINT CALCULATIONS; 2024-10-28
FOR
FPC RESIDENTIAL
7200, 7290, 7294 Ponto Drive
CITY OF CARLSBAD, CA
PREPARED FOR:
H.G. FENTON COMPANY
7577 MISSION VALLEY ROAD
SAN DIEGO, CA 92108
PH: (619) 400-1034
PREPARED BY:
PASCO LARET SUITER & ASSOCIATES, INC.
1911 SAN DIEGO AVE. SUITE 100
SAN DIEGO, CA 92110
PH: (858) 400-1034
__________________________________________________
TYLER G. LAWSON, RCE 80356 DATE
12/01/202310/28/2024
RESTRAINED JOINT CALCULATIONS
ROW 2023-0397/DWG 543-6
SDP 2022-0003
Defined Variables
H =Depth of Bury
Sf =Safety Factor
P =Internal Pressure
θ =Bend Angle
Pipe Derived Variables
A =Cross Sec. Area of Pipe
D =Outside Pipe Diameter
WP =Weight of Pipe
WW =Weight of Water in Pipe
Defined Variables
fC =Cohesion Modifier Coefficient
c =Cohesion of Soil
fΦ =Friction Angle Modifier
Φ =Internal Friction Angle of Soil
γ =Soil Density
KN =Trench Compaction Modifier
Calculations for Horizontal Bend
WE = γ • D • H =Normal Force Due to Soil
W = 2WE + WP + WW =Normal Force Acting on Pipeline
KP = tan^2((π / 180) • (45 + (Φ / 2))) =Rankin Passive Pressure Coeff.
HC = H + (D / 2) =Depth From Surface to Pipe Center
σh = γ • HC • KP + 2c√KP =Horizontal Passive Soil Pressure
AP = π • (D / 2) = Area Based on Half of Circumference
RS = KN • σh • D =Bearing Resistance of Pipelines
FS = AP • fC • c + W • tan((π / 180) • fΦ • Φ) =Frictional Resitance
L = (SF • P • A • tan((π / 180) • (θ / 2))) / (FS + (RS / 2)) =Minimum Restrained Length
MEGALUG®
Fitting Type Pipe
Material
Soil
Type
Safety
Factor
Trench
Type
Depth
of Bury
Test
Pressure
Nominal
Size
Bend
Angle
Branch
Size
Length
Along Run
Reduced
Size
Lowside
Depth
Restraint
Length
Restraint
Length 2
Site Name:
Site Notes:
ALL JOINTS WITHIN THE CALCULATED LENGTH MUST BE RESTRAINED
IF YOUR DISTANCE BETWEEN FITTINGS IS LESS THAN OR EQUAL TO THE CALCULATED RESTRAINT LENGTH, RESTRAIN ALL JOINTS BETWEEN THOSE FITTINGS.
Project Name:
Project Notes:
www.ebaa.com • contact@ebaa.com • 800.433.1716
RESTRAINT LENGTH VALUES
FPC Residential
Ponto I
Horizontal Bend PVC SM 1.5 5 3 Ft.200 PSI 10 In.45°16 Ft.
16 Ft.16 Ft.
3
1.5
200
45
96.77
0.93
8.61
35.73
0.00
0
0.70
30
110
1.00
306.900
658.140
3.000
3.465
1143.450
1.461
1063.409
252.636
15.331
Created by EBAA Iron's Restraint Length Calculator v7.1.3 on October 28, 2024
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EBIV\ ~ I R0 N
EBAA IRON SALES, INC .
Defined Variables
H =Depth of Bury
Sf =Safety Factor
P =Internal Pressure
θ =Bend Angle
Pipe Derived Variables
A =Cross Sec. Area of Pipe
D =Outside Pipe Diameter
WP =Weight of Pipe
WW =Weight of Water in Pipe
Defined Variables
fC =Cohesion Modifier Coefficient
c =Cohesion of Soil
fΦ =Friction Angle Modifier
Φ =Internal Friction Angle of Soil
γ =Soil Density
KN =Trench Compaction Modifier
Calculations for Vertical Offset Lower Upper
WE = γ • D • H =Normal Force Due to Soil
W = 2WE + WP + WW =Normal Force Acting on Pipeline
KP = tan^2((π / 180) • (45 + (Φ / 2))) =Rankin Passive Pressure Coeff.
HC = H + (D / 2) =Depth From Surface to Pipe Center
σh = γ • HC • KP + 2c√KP =Horizontal Passive Soil Pressure
AP = π • (D / 2) = Area Based on Half of Circumference
RS = KN • σh • D =Bearing Resistance of Pipelines
FS = AP • fC • c + W • tan((π / 180) • fΦ • Φ) =Frictional Resitance
L = (SF • P • A • tan((π / 180) • (θ / 2))) / (FS + (RS / 2)) =Minimum Restrained Length Lower
L = (SF • P • A • tan((π / 180) • (θ / 2))) / FS =Minimum Restrained Length Upper
Project Name:
Project Notes:
www.ebaa.com • contact@ebaa.com • 800.433.1716
RESTRAINT LENGTH VALUES
MEGALUG®
Fitting Type Pipe
Material
Soil
Type
Safety
Factor
Trench
Type
Depth
of Bury
Test
Pressure
Nominal
Size
Bend
Angle
Branch
Size
Length
Along Run
Reduced
Size
Lowside
Depth
Restraint
Length
Restraint
Length 2
Site Name:
Site Notes:
ALL JOINTS WITHIN THE CALCULATED LENGTH MUST BE RESTRAINED
IF YOUR DISTANCE BETWEEN FITTINGS IS LESS THAN OR EQUAL TO THE CALCULATED RESTRAINT LENGTH, RESTRAIN ALL JOINTS BETWEEN THOSE FITTINGS.
FPC Residential
Ponto I
Vertical Offset PVC SM 1.5 5 3 Ft.200 PSI 10 In.11.25°5.3 Ft.12 Ft.3 Ft.
12 Ft.12 Ft.
3 Ft.3 Ft.
3
1.5
200
11.25
96.77
0.93
8.61
35.73
0.00
0
0.70
30
110
1.00
306.900
658.140
3.000
3.465
1.461
1769.279
252.636
11.318
542.190
1128.720
3.000
5.765
1902.450
1.461
1769.279
433.275
2.170
Created by EBAA Iron's Restraint Length Calculator v7.1.3 on October 8, 2024
-·Htu\JI fl1&i1-
EBIV\ ~ I R0 N
EBAA IRON SALES, INC .