I agree that the way ASCE 7 and IBC directs the usage of the Ωo is fairly ambiguous.
No one at my office has any clue, and all the Eng-Tip threads that I have found concerning Ωo with foundations do not address my specific question. The best idea I have is as follows:
Ωo is applied to...
Okiryu,
I am referring to the seismic overstrength factor, Ωo, which is a coefficient for the seismic load effect within the different load combinations (ASCE 7-10 Section 12.4.3). You may choose to include or not include Ωo in the load combinations, depending on the structure you are designing...
Hello!
Is the seismic overstrength factor applied in the ASD/LRFD load combinations when checking for bearing/lateral/axial resistances? I have searched other threads and codes and found good information on how the overstrength factor applies to a foundation's strength design, but I am...
Thank you for the quick responses! From what I have gathered, there is no simple way to look at a corrosion spall and tell if the corrosion is caused by concrete carbonation or by chloride intrusion.
Hi,
Is there a visual test an structural inspector can perform to determine if a concrete spall is caused by either carbonation (CARB) or chloride intrusion (CI)? I am not concerned with structural cracks such as flexure or shear cracks that eventually cause a spall. My understanding is that...
