Applies To
	Product(s):	AutoPIPE,
	Version(s):	2004, XM, & V8i
	Area:	Load Case
	Original Author:	Bentley Technical Support Group

Problem:

How to create a Response Spectrum analysis?

Solution:

A response spectrum analysis is used to determine the response of a structural system subjected to earthquake excitation. A response spectrum analysis uses results from the modal analysis to obtain a solution. Thus, a modal analysis must be performed before a response spectrum analysis is initiated. All assumptions made during the modal analysis apply.

Note: Only the AutoPIPE Advanced and Nuclear versions will allow specification of fifty response spectrum cases. The standard version of AutoPIPE will allow a maximum of five response spectrum cases.

Run a Response Spectrum analysis based on the parameters defined in the following locations:

• • • Spectrum data (*.SPC) from the Response / Force Spectrum Load dialog

    • Modal TAB of the Dynamic Analysis dialog

    • Response Spectrum TAB of the Dynamic Analysis dialog

    • Sam analysis dialog (optional)

    • SAM / MRSRS Suport Group dialog (optional)

 A detailed description of performing a MSRS analysis can be found in the following document:"AutoPIPE_MSRS_Example1.pdf"

AutoPIPE CONNECT 10.xx and higher:

Please see the following AutoPIPE help section:
Help > Contents> Contents Tab> Bentley AutoPIPE> Supplemental Documentation> 

AutoPIPE V8i 09.06.xx xx and lower

C:\ Bentley\ AutoPIPE V8i SELECTseries\ Documents \ 

(or try searching your hard drive for the file AutoPIPE_MSRS_Example1.pdf)

Note: this documented procedure can be adapted to perform a single response spectrum.

See Also

"Response / Force Spectrum Loads" - AutoPIPE Load Case

Bentley AutoPIPE