I have completed the response spectrum analysis and have done the scale up as per UBC 1997 1631.5 and found that the base moments and deflections are less than the static elastic analysis. my interpretation is that As per UBC 1997 I am allowed to use the results from dynamic analysis.
Is this...
Qshake
I am a first time user of this forum and never thought I will get a reply so quickly.
Thanks for your comments. I have used the Edyn for wind loading only as per BS8110 and just wondered to see any provision in UBC 1997.
For EQ analysis as per UBC1997 I have used E=4730 * fc^0.5...
I am using E = Edynamic = 1.3 x Ec28 in my ETABS model for the calculation of total displacement and inter storey drift for a 84 storey apartment building.
Is this approach correct ? I found a relationship betn Ec28 and Edyn in BS8110 but not in UBC1997.
