Subsea Seismic Analysis
Hello community,
I am enquiring about those who have performed seismic analysis on subsea pipelines or piping.
I am wondering how others have handled the added mass component for the seismic analysis.
It is unclear to me if AutoPIPE is calculating…
02. How you define a Seismic load combination in AutoPIPE?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Load case
Date Logged & Current Version
Aug 2023 23.00.00.230
Problem:
How you define a Seismic load combination in AutoPIPE?
Solution:
To include the…
Does AutoPIPE make consideration for B31 piping code stresses with ASD vs LRFD?
CAESAR II uses load reduction factors 0.7 for seismic events and 0.6 for wind events.
https://docs.hexagonppm.com/r/en-US/CAESAR-II-Users-Guide-2019-Service-Pack-1/Version-2019-11.0-Service-Pack-1/888578
Would this be a valid way to incorporate?
Seismic Static Analysis Vertical Factor
Where does the default value of 0.5 for vertical factor when performing adding static earthquake loads come from?
Soil virtual anchor and seismic wave error.
Hi, I have the following 4 warning that I unable to find any information about online. How would I go about addressing these warnings and do these warnings affect the static analysis?
W2261-3: Invalid Pipe ID in "Virtual Anchor" data for following Soil…
ASCE 2016 Directions
Hi,
If I make a static seismic load case using ASCE 2016, in what directions is the seismic load applied? Is it just +X, +Y, +Z?
Thanks,
Sean
22. SAM cases are not included in AutoPIPE's code combination 2Mb2+ 2Mce, only the seismic force are being evaluated, why?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Cod combinations
Date Logged & Current Version
Aug. 2021 12.06.00.48
Problem:
SAM cases are not included in the 2Mb2+2Mce code combination.
Solution:…
01. "W831-11: Seismic level includes cases not analyzed" message appears when trying to analysis, why?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Calculations
Date Logged & Current Version
Aug. 2021 12.06.00.48
Problem:
When I run an analysis with AutoPIPE V8i 09.06.00.15 with JSME S NC1-PPC Piping…
W831-11: Seismic level includes cases not analyzed warning message in AutoPIPE
Applies To
Product(s):
AutoPIPE,
Version(s):
2004, XM, & V8i
Environment:
N/A
Area:
warning
Original Author:
Bentley Technical Support Group
Problem:
The…
0. How to apply a Dynamic Seismic / Response Spectrum load case in AutoPIPE?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Load case
Date Logged & Current Version
June 2021 12.06.00.48
Problem:
See the following resources to learn how to apply a Dynamic Seismic load case in…
0. How to apply a Static Seismic load case in AutoPIPE?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Load case
Date Logged & Current Version
June 2021 12.06.00.48
Problem:
See the following resources to learn how to apply a Static Seismic load case in AutoPIPE…
09. How to apply Seismic loads to part of model and not to complete model?
Applies to
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Modeling
Date Logged & Current Version
May. 2019 12.00.00.14
Problem:
How to apply Static Seismic G factor to part of the model, instead of the whole model…
ASME 31E seismic load calculations
Аs ASME 31E said, I can use two variants for choosing seismic load direction: one is three directional excitations such as plant east-west, north-south and vertical, with the combination of square-root sum of the squares (SRSS) or two directional design…
Performing Seismic and Wind Analysis in AutoPIPE
to
Eastern Time (US & Canada)
Distance Learning (Virtual) - Register below
Discover how the latest version of AutoPIPE can help you efficiently address a wide range of advanced pipe stress analysis options in a single application. Join this webinar and see the tools for seismic and wind load analysis in AutoPIPE including: ...
Distance Learning (Virtual) - Register below
Discover how the latest version of AutoPIPE can help you efficiently address a wide range of advanced pipe stress analysis options in a single application. Join this webinar and see the tools for seismic and wind load analysis in AutoPIPE including: ...
Performing Seismic and Wind Analysis in AutoPIPE
to
Eastern Time (US & Canada)
Distance Learning (Virtual) - Register below
Discover how the latest version of AutoPIPE can help you efficiently address a wide range of advanced pipe stress analysis options in a single application. Join this webinar and see the tools for seismic and wind load analysis in AutoPIPE including: ...
Distance Learning (Virtual) - Register below
Discover how the latest version of AutoPIPE can help you efficiently address a wide range of advanced pipe stress analysis options in a single application. Join this webinar and see the tools for seismic and wind load analysis in AutoPIPE including: ...
08. How are "Sustained + Earthquake + Seismic Displacements" combined in an AutoPIPE model?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Combination
Date Logged & Current Version
April. 2018 11.03.00.08
Problem:
How are "Sustained + Earthquake + Seismic Displacements" combined in an AutoPIPE…
05. How are the seismic displacements of structures entered in an AutoPIPE model?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Modeling
Date Logged & Current Version
April. 2018 11.03.00.08
Problem:
How are the seismic displacements of structures entered in an AutoPIPE model?
…
08. What values of Rp can be input when using static seismic ASCE-7 2010 code in AutoPIPE?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Modeling
Date Logged & Current Version
April. 2018 11.03.00.08
Problem:
What values of Rp can be input when using static seismic ASCE-7 2010 code in AutoPIPE…
04. How to evaluate the impacts of the SAM (Seismic Anchor Movement) combined with dynamic analysis with spectra in an AutoPIPE analysis?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Analysis
Date Logged & Current Version
April. 2018 11.02.00.10
Problem:
How to evaluate the impacts of the SAM (Seismic Anchor Movement) combined with dynamic…
04. How to add seismic "G factors" in an AutoPIPE model?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL
Area:
Seismic Load Case
Original Author:
Bentley Technical Support Group
Date Logged & Current Version
Dec 2014 09.06.01.10
…
06. Does friction affect SAM analysis results in AutoPIPE?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Analysis
Date Logged & Current Version
Jan. 2018 11.02.00.08
Problem:
Does friction affect SAM analysis results in AutoPIPE?
Solution:
In short, No…
07. Is it not conservative approach to apply static seismic force on structure in AutoPIPE as done in STAAD?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Load-case
Date Logged & Current Version
Sept. 2017 11.01.00.17
Problem:
Is it not conservative approach to apply static seismic force on structure in AutoPIPE…
06. Are seismic force applied on structural elements as well as pipe in an AutoPIPE analysis?
Applies To
Product(s):
AutoPIPE
Version(s):
ALL;
Area:
Date Logged & Current Version
Sept. 2017 11.01.00.17
Problem:
Are seismic force applied on structural elements as well as pipe in an AutoPIPE analysis?…
01. Can the seismic input be explained again in the new version of AutoPIPE V8i 09.06.xx.xx and higher?
Applies To
Product(s):
AutoPIPE
Version(s):
all
Environment:
N/A
Area:
Static Load Case
Original Author:
Bentley Technical Support Group
Date Logged & Current Version…
Tutorial - Soil Overburden and Seismic Wave Propagation in AutoPIPE v9_5.zip
Introduction:
The analysis of a buried piping system requires special modeling consideration. This is because the restraint (support) provided by soil surrounding a buried pipe is continuous. As AutoPIPE analysis is based on discretely defined points…