×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

colombian seismic code nsr-10

colombian seismic code nsr-10

colombian seismic code nsr-10

(OP)
dear all,

i am using colombian seismic code nsr-10 for one of my project.

i have doubt, as per code i have calculated seismic base shear as Vs = Sa g M

How to use the R-value in the seismic calculation.

there is no formula given in code on using it in seismic base shear calculation.

please clarify

regards,

senthil

RE: colombian seismic code nsr-10

If your code doesn't call for the use of R then you don't use it. I presume you are bound by the laws of your State or Province or locality.

If you have the option of using proper US codes, then I suggest you go that route. Be very careful when mixing the two.

RE: colombian seismic code nsr-10

Just a note that assuming US codes are more proper is a little presumptuous.

I like reading various seismic codes, because they're all just different ways of coming up with a consensus level of risk. I don't speak the language, but math is universal and table tables and graphs are pretty informative. NSR-10 actually looks reasonably sophisticated and I wish I could understand the language.

It looks like they use a partial factor system to determine R, where the Base R0 is for the structural system, and then there are various partial factors for different irregularities and other factors which might limit post plastic performance. That's pretty good.

I haven't traced all the way through, but there's a section where the math seems to imply that they could be using R as a modifier on the design period so that you pick from a lower part of the spectrum. That'd be a neat way to handle it.

https://www.idrd.gov.co/sitio/idrd/sites/default/f...

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources