When to use overstrength factor
When to use overstrength factor
(OP)
Dear all,
After reading the ASCE7-05 I could not find when I should use over strength factor. I have project which is in high seismic zone i.e. california.Can I use redundancy factor,how different it is from over strength factor.





RE: When to use overstrength factor
The OS factor is completely different from the redundancy factor. The redundancy factor tries to reflect the overall level of redundancy in the structure's bracing system (i.e. more, smaller braces are better than one big brace).
The OS factor attempts to oversize non-ductile portions of the structure (like bolted connections) so that the first yeild failure occurs in the more ductile elements first, avoiding sudden, brittle failures during a seismic event.
RE: When to use overstrength factor
Thanks in advance