Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

new steel framed structure on top of existing concrete structure

Status
Not open for further replies.
structSU10

structSU10

Structural
Joined
Mar 3, 2011
Messages
1,062
Location
US
Looking for thoughts on LFRS for seismic when building a new steel structure on top of an existing concrete structure. I can't really hit the two stage analysis requirements and want to try and use the existing concrete lateral frame which has a different R than the steel. Do I simply use the most punishing R value, etc. as ASCE 7-16 12.2.3 states or is something else more appropriate?
 
Sort by date Sort by votes
I would think that it would be the most punishing R-Value as you've mentioned.
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

JStructsteel
  • Locked
  • Question Question
Adding on to a moment framed structure
Replies
2
Views
2K
JStructsteel
JStructsteel
tmalik3156
  • Locked
  • Question Question
New corbel on existing concrete structure
Replies
10
Views
1K
rapt
rapt
dianium500
  • Question Question
New foundation encroaching on existing
Replies
4
Views
5K
milkshakelake
milkshakelake
M
  • Locked
  • Question Question
frame release concept steel structure
Replies
4
Views
3K
BAretired
BAretired
Refaat Faraj
  • Question Question
Increasing the deep beam capacity by adding a new concrete part on top of it.
Replies
7
Views
4K
Refaat Faraj
Refaat Faraj

Part and Inventory Search

Sponsor

Back
Top