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There are 4 different types of seismic analysis which can be performed.
Simplified Static seismic analysis … up to 10 cases (ie. E1..E10). Furthermore, user can add additional Member & Point Static Earthquake Factors (Insert> Xtra Data>) which can be applied across any section of piping to simulate different seismic g at different building floors or supported structures
Response spectrum analysis applied to complete piping system (Load> Dynamic Analysis> Response Spectrum tab.
Multiple support response spectrum analysis or independent support motion is more accurate analysis and common in nuclear piping design. This will capture response of independent spectrums e.g. at ground and different floor levels applied to groups of pipe supports supported on these levels. See tutorial AutoPIPE_MSRS_Example1.pdf.
Time history analysis with ground motion option turned on (Load> Dynamic> Time History Tab> Ground motion enabled).
Note: see AutoPIPE's online help for details on each of the items mentioned above.
I would like to know if Autopipe calculates according to the EN 1998 codes which is needed for Bulgaria? or can I convert information between codes. please let me know since this is critical for the approval for the engineering.
Answer:
AutoPIPE is able to model various Seismic Earthquake loads as mentioned above. With regards to the Static Seismic analysis feature, AutoPIPE V8i 09.06.00.xx has 5 different codes available:
ALA (ASCE 2002)
ASCE (2010)
GB50011 - 2001
Mexican CFE 2008
User
As seen above, En1998 code is not a selection. However, the user can get the code values from another resource and enter them in as a "User" code type. See AutoPIPE online help for details on this feature.
The following enhancement has been logged ( TFS-E97721: Add new Seismic code, EN 1998) to add this new seismic code to a future version of AutoPIPE.
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