Not Design for Engineering Practice (See Notes bellow Report)
Buried Pipe Calculation Report
Input Data Title Name Pipe Diameter Nominal Pipe Thickness Sum of Allowance Specified Min Yield Strength Ultimate Stress Weld Joint Factor Design factor Pipe Modulus of Elasticity Poisson's Effect Thermal Expansion Coefficient Lining Thickness Coating Thickness Lining Modulus of Elasticity Coating Modulus of Elasticity Lining/ Coating Max. Design Temp. Installation Temp. Design Pressure SL Bending Moment due to Weight Component SIF in Plane of Loading Axial Load SL Bending Moment due to Weight SE Elastic Stability Safe Factor Impact Factor for Concentrated Load Impact Factor for Live Load Impact Factor Bedding Constant Deflection Lag Factor Failure Theory
General Information Date Report Name Piping Dimensions 508 mm 8.7 mm 0 mm Material 358.52 Mpa 500 MPa 1 0.72 203000 Mpa 0.3 mm/mm°c 0.0000117 2 mm 3 mm 100000 MPa 125000 MPa Mortar-Lined and Coated Design Condition 76.7 °C 10 °C 8273.7 Kpa(g) Longitudinal Stress Resulting from SUS Loads 2.52E+03 MPa N/A KN.m N/A 0 KN Longitudinal Stress Resulting from OCC Loads 0.00E+00 MPa N/A KN Thermal Stress for Unrestrained System 0 MPa Analysis Settings 3 N/A N/A 1.5 0.1 1.5 Max Shear Stress
Not Designed for Engineering Practice. (Refer to disclaimers)
2
Buried Pipe Calculation Report
Dry Backfill Density Water Density Modulus of Soil Reaction Concentrated Surface Load Height of Fill Height of Water Offset Distance Height of Cover (for Live )Load Live Load Height of Cover (for Impact Factor) Live Load Case Results Stress Source
Notes: 1. Res and Unres stand for Restrained and Unrestrained systems respectively.
Not Designed for Engineering Practice. (Refer to disclaimers)
3
Buried Pipe Calculation Report
2. For calculation of SA, please refer to 403.3.2 of B31.4-2012. Temperature ranges for restrained and unrestrained systems are mentioned in 402.5.1 and 402.5.2 of B31.4-2012 respectively. All allowable stresses must be less than Ultimate stress (SU). For SA=f(1.25*(Sc+Sh)-SL), here it is assumed that f=1, Sc=Sh=2/3SY. 3. Refer to Appendix A of ALA. 4. It is checked only in restrained system. User can check it in unrestrained system. 5. ΔY is defined as ovality. 6. In combined stress calculation, it is assumed that SL=|Fa|-|νS H|+|M/z|+|FA/A|. If it fails, user can check the combined stress by stress of |FA/A|.
7. In effective stress calculation for a pipe at road (Table 403.3.1-1 B31.4-20012), longitudinal expansion stress, longitudinal and hoop stresses resulting from internal pressure and circumferential hoop stresses due to external pressure are combined to reach a Disclaimers
1. The calculated stresses in this sheet may not encompass all analyses which are required in a real engineering practice. For inst earthquake, landslide, mine subsidence analysis have not been considered. Moreover some buried pipe analysis such as a unrestr buried pipe needs to be analyzed by a finite element methods. 2. The formula and methods which are used in this calculation sheet are based on those mentioned in the technical papers on the WWW.CALCSTRESS.COM website. User must be aware of the applied method's restrictions.
3. The owners of CALCSTRESS.COM cannot guarantee the completeness and accuracy of any information including formula an and used in this datasheet. It has been designed for training only. It may not be complete enough for a professional service. So, it for any professional services. CALCSTRESS IS NOT RESPONSIBLE FOR ANY DAMAGES, OMISSIONS AND ERRORS USING THIS CALCULATION SHEET. 4. This sheet content may change without any prior notice. 5. Users are highly appreciated if they let CALCSTRESS know any problems or mistakes in the application. 6. User’s knowledge about the proper valid range of inputs and the methods limitations is necessary.
Not Designed for Engineering Practice. (Refer to disclaimers)
4
Buried Pipe Calculation Report Ver. 1 (Test Ver.)
Report
Code: B31.4-2012 American Lifeline Alliance
ormation
tar-Lined and Coated
S Loads
C Loads
tem
Not Designed for Engineering Practice. (Refer to disclaimers)
5
Buried Pipe Calculation Report
Accept. Pass
System(1)
Ref
Res/Unres Res/Unres Res.
B31.4-2012
Failed Failed Failed Failed Failed Failed
Unres. Res. Unres. Res. Unres.
B31.4-2015
Res.
B31.4-2020
Failed
Res.
B31.4-2021
Pass
Unres.
B31.4-2021
Pass
Res/Unres
ALA
Res. 4
ALA
Pass
Res/Unres
ALA
Pass
Res/Unres
ALA
Pass Pass
Failed
Accept. Pass
System(1) Res/Unres
B31.4-2013 B31.4-2014
B31.4-2016 B31.4-2017 B31.4-2018 B31.4-2019
Ref ALA
Not Designed for Engineering Practice. (Refer to disclaimers)
6
Buried Pipe Calculation Report
trained and unrestrained systems are based on what is e less than Ultimate stress (SU). For unrestrained system:
ser can check the combined stress by correct sign of
nal expansion stress, longitudinal and circumferential rnal pressure are combined to reach an equivalent stress.
n a real engineering practice. For instance, buoyancy, buried pipe analysis such as a unrestrained part of a
ntioned in the technical papers on the s.
any information including formula and methods applied ough for a professional service. So, it must not be used GES, OMISSIONS AND ERRORS ARISING FROM
n the application.
ecessary.
Not Designed for Engineering Practice. (Refer to disclaimers)
7
Y-Axis S tress(MPa) or Ovality
Not Design for Engineering Practice (See Notes bellow Report)
Buried Pipe Calculation Report
Ver. 1 Code: B31.4-2012 American Lifeline Alliance
