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Response Modification Factor

Response Modification Factor

Response Modification Factor

(OP)
I am doing some research on the application of R-Value to the design of power transmission structures. Any good historical references or otherwise pertaining to the R-Values as they are assigned to building systems, particularly steel?

RE: Response Modification Factor

The TIA code (for communications towers) uses R = 3.0 for latticed self supported towers and R = 1.5 for Tubular pole structures.  Those structures are fairly similar to a lot of transmission structures.  

I imagine the basis for this is the non-building structure portions of ASCE-7. But, I don't explicitly know.  

 

RE: Response Modification Factor

you may likewise refer to ASCE 10

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