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AS 2885.1 Pipeline Road And Rail Crossing

Calculate AS 2885.1 pipeline road and rail crossing stress checks.

The methodology is taken from API RP 1102. A design factor of 0.72 should be used for highway and railroad crossings. A factor of 0.9 can be used in other cases. The hoop stress check is not required.

Reference : Australian Standard AS 2885.1 : Pipelines - Gas And Liquid Petroleum Part 1 : Design And Construction (2015)

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CALCULATOR : AS 2885.1 Section 5.7.3 Pipeline Highway Crossing [PLUS]   ±

Calculate pipeline highway crossing effective stress, girth weld fatigue check and longitudinal weld fatigue check (AS 2885.1 section 5.7.3 : API 1102).

A design factor of 0.72 should be used for highway crossings. A factor of 0.9 can be used in other cases. A hoop stress check is not required. Distributed loading can be calculated for single axle and tandem axle trucks.

Reference : API RP 1102 : Steel Pipelines Crossing Railroads and Highways

Tool Input

  • OOR : Out Of Range Calculation Type
  • schdtype : Pipe Schedule Type
  • diamtype : Pipe Diameter Type
    • ODu : User Defined Outside Diameter
    • IDu : User Defined Inside Diameter
  • wtntype : Wall Thickness Type
    • tnu : User Defined Wall Thickness
  • syutype : Stress Table Type
  • mattype : Material Strength Type
    • SMYSu : User Defined Specified Minimum Yield Stress
  • efactype : Weld Joint Factor Type
    • Eu : User Defined Quality Factor
  • tfactype : Temperature Derating Type
    • Tu : User Defined Temperature Reduction Factor
  • ssttype : Temperature Stress Type
  • loctype : Pipe Location Class Design Factor
    • Fu : User Defined Design Stress Factor
  • pipetype : Pipe Installation Type
  • sfltype : Fatigue Limit Type
    • Sfgu : User Defined Girth Weld Fatigue Limit
    • Sflu : User Defined Longitudinal Weld Fatigue Limit
  • eotype : Soil Reaction Modulus E'
    • E'u : User Defined Soil Reaction Modulus
  • ertype : Soil Resilient Modulus Er
    • Eru : User Defined Soil Resilient Modulus
  • betype : Soil Burial Factor Be
  • wvtype : Soil Weight Type
    • γu : User Defined Soil Specific Weight
  • bdtype : Auger Diameter Type
    • Bdu : User Defined Auger Bore Diameter
  • loadtype : Vehicle Load Type
  • presstype : Earth Pressure Type
    • wsu : User Defined Single Axle Surface Pressure
    • wtu : User Defined Tandem Axle Surface Pressure
  • checktype : Stress Check Type
  • ta : Corrosion Allowance
  • H : Soil Cover Height
  • ν : Pipe Poisson Ratio
  • α : Pipe Thermal Expansion Coefficient
  • E : Pipe Elastic Modulus
  • P : Pipe Internal Pressure
  • T1 : Installation Temperature
  • T2 : Design Temperature

Tool Output

  • ΔShh : Cyclic Circumferential Stress
  • ΔSlh : Cyclic Longitudinal Stress
  • γ : Soil Specific Weight
  • Bd : Bored Diameter
  • Bd/D : Bored Diameter Over Pipe Diameter Ratio
  • Be : Earth Load Hoop Burial Factor
  • E' : Soil Reaction Modulus
  • Ee : Earth Load Hoop Excavation Factor
  • Er : Soil Resilience Modulus
  • Ew : Longitudinal Weld Factor
  • F : Stress Factor
  • Fi : Load Impact Factor
  • Ghh : Highway Circumferential Geometry Factor
  • Glh : Highway Longitudinal Geometry Factor
  • H/Bd : Soil Height Over Bored Diameter Ratio
  • ID : Pipe Nominal Inside Diameter
  • Khe : Earth Load Hoop Stiffness Factor
  • Khh : Highway Circumferential Stiffness Factor
  • Klh : Highway Longitudinal Stiffness Factor
  • L : Highway Axle Configuration Factor
  • OD : Pipe Nominal Outside Diameter
  • OD/t : Diameter Over Wall Thickness Ratio
  • R : Highway Pavement Type Factor
  • S1 : Principal Circumferential Stress
  • S2 : Principal Longitudinal Stress
  • S3 : Principal Radial Stress
  • SMYS : Pipe SMYS
  • Sa : Allowable Stress
  • Sd : Design Stress
  • Sd/S : Design Stress Ratio (≤ 1)
  • Sfg : Girth Weld Fatigue Limit
  • Sfl : Longitudinal Weld Fatigue Limit
  • She : Earth Load Circumferential Stress
  • Shi : Internal Pressure Circumferential Stress
  • Slt : Temperature Longitudinal Stress
  • T : Temperature Factor
  • t : Pressure Design Wall Thickness
  • tn : Pipe Nominal Wall Thickness
  • tw/D : Wall Thickness Over Diameter Ratio
  • w : Design Surface Pressure

CALCULATOR : AS 2885.1 Section 5.7.3 Pipeline Railway Crossing [PLUS]   ±

Calculate pipeline railway crossing effective stress, girth weld fatigue check and longitudinal weld fatigue check (AS 2885.1 section 5.7.3 : API 1102).

A design factor of 0.72 should be used for railway crossings. A hoop stress check is not required. Distributed loading can be calculated for single track and double track crossings.

Reference : API RP 1102 : Steel Pipelines Crossing Railroads and Highways

Tool Input

  • OOR : Out Of Range Calculation Type
  • schdtype : Pipe Schedule Type
  • diamtype : Pipe Diameter Type
    • ODu : User Defined Outside Diameter
    • IDu : User Defined Inside Diameter
  • wtntype : Wall Thickness Type
    • tnu : User Defined Wall Thickness
  • syutype : Stress Table Type
  • mattype : Material Strength Type
    • SMYSu : User Defined Specified Minimum Yield Stress
  • efactype : Weld Joint Factor Type
    • Eu : User Defined Quality Factor
  • tfactype : Temperature Derating Type
    • Tu : User Defined Temperature Reduction Factor
  • ssttype : Temperature Stress Type
  • loctype : Pipe Location Class Design Factor
    • Fu : User Defined Design Stress Factor
  • pipetype : Pipe Installation Type
  • sfltype : Fatigue Limit Type
    • Sfgu : User Defined Girth Weld Fatigue Limit
    • Sflu : User Defined Longitudinal Weld Fatigue Limit
  • eotype : Soil Reaction Modulus E'
    • E'u : User Defined Soil Reaction Modulus
  • ertype : Soil Resilient Modulus Er
    • Eru : User Defined Soil Resilient Modulus
  • betype : Soil Burial Factor Be
  • wvtype : Soil Weight Type
    • γu : User Defined Soil Specific Weight
  • bdtype : Auger Bore Diameter Type
    • Bdu : User Defined Auger Bore Diameter
  • loadtype : Rail Load Type
  • presstype : Earth Pressure Type
    • wru : User Defined Track Surface Pressure
  • checktype : Stress Check Type
  • ta : Corrosion Allowance
  • H : Soil Cover Height
  • ν : Pipe Poisson Ratio
  • α : Pipe Thermal Expansion Coefficient
  • E : Pipe Elastic Modulus
  • P : Pipe Internal Pressure
  • T1 : Installation Temperature
  • T2 : Design Temperature

Tool Output

  • ΔShr : Cyclic Circumferential Stress
  • ΔSlr : Cyclic Longitudinal Stress
  • γ : Soil Specific Weight
  • Bd : Bored Diameter
  • Bd/D : Bored Diameter Over Pipe Diameter Ratio
  • Be : Earth Load Hoop Burial Factor
  • E' : Soil Reaction Modulus
  • Ee : Earth Load Hoop Excavation Factor
  • Er : Soil Resilience Modulus
  • Ew : Longitudinal Weld Factor
  • F : Stress Factor
  • Fi : Load Impact Factor
  • Ghr : Railroad Circumferential Geometry Factor
  • Glr : Railroad Longitudinal Geometry Factor
  • H/Bd : Soil Height Over Bored Diameter Ratio
  • ID : Pipe Nominal Inside Diameter
  • Khe : Earth Load Hoop Stiffness Factor
  • Khr : Railroad Circumferential Stiffness Factor
  • Klr : Railroad Longitudinal Stiffness Factor
  • Nh : Railroad Circumferential Double Track Factor
  • Nl : Railroad Longitudinal Double Track Factor
  • OD : Pipe Nominal Outside Diameter
  • OD/t : Diameter Over Wall Thickness Ratio
  • Rf : Railroad Longitudinal Reduction Factor
  • S1 : Principal Circumferential Stress
  • S2 : Principal Longitudinal Stress
  • S3 : Principal Radial Stress
  • SMYS : Pipe SMYS
  • Sa : Allowable Stress
  • Sd : Design Stress
  • Sd/S : Design Stress Ratio (≤ 1)
  • Sfg : Girth Weld Fatigue Limit
  • Sfl : Longitudinal Weld Fatigue Limit
  • She : Earth Load Circumferential Stress
  • Shi : Internal Pressure Circumferential Stress
  • Slt : Temperature Longitudinal Stress
  • T : Temperature Factor
  • t : Pressure Design Wall Thickness
  • tn : Pipe Nominal Wall Thickness
  • tw/D : Wall Thickness Over Diameter Ratio
  • w : Design Surface Pressure

CALCULATOR : AS 2885.1 Section 5.7.3 Pipeline Crossing Design Factor (US Units) [FREE]   ±

Calculate pipeline crossing design factors from the figures (AS 2885.1 section 5.7.3 : API 1102 US units).

Input values are in the US units used in each figure. Refer to the figures for the correct units. The units can not be changed. Use the Result Plot option to display the figures with preset values, including interpolated and extraploated values. Use the constant slope option for extrapolated values. Extrapolated values should be used carefully.

Reference : API RP 1102 : Steel Pipelines Crossing Railroads and Highways

Tool Input

  • OOR : Out Of Range Calculation Type
  • optype : Figure
  • X : Input X (Depends on Selected Figure)
  • Y : Input Y (Depends on Selected Figure)

Tool Output

  • Z : Result
CALCULATOR : AS 2885.1 Section 5.7.3 Pipeline Crossing Fatigue Limit [FREE]   ±

Calculate pipeline crossing yield stress, tensile stress and fatigue limit (AS 2885.1 section 5.7.3 : API 1102 Table 3).

The data values are in US units. Change units on the setup page (click the setup link on the calc bar). Use the Result Table option to display the data.

Reference : API RP 1102 : Steel Pipelines Crossing Railroads and Highways

Tool Input

  • syutype : Stress Table Type
  • mattype : Material Strength Type
    • SMYSu : User Defined Specified Minimum Yield Stress
  • sfltype : Fatigue Limit Type
    • Sfgu : User Defined Girth Weld Fatigue Limit
    • Sflu : User Defined Longitudinal Weld Fatigue Limit

Tool Output

  • SMYS : Specified Minimum Yield Stress
  • Sfg : Girth Weld Fatigue Limit
  • Sfl : Longitudinal Weld Fatigue Limit
  • Slerw : Longitudinal Weld Fatigue Limit ERW And Seamless
  • Slsaw : Longitudinal Weld Fatigue Limit SAW
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