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Posted: Thu May 28, 2020 2:23 am Post subject: ETABS Time history analysis and Response spectrum analysis
I did Response spectrum analysis and time history analysis using spectrum matched time history of a building connected to another frame via a infinitely rigid link, in response spectrum analysis the results showed decrease in floor displacement , but in time history analysis the structure is stable for first 4-5 seconds, then it suddenly shows high values of base shear and displacement. When I reduce the stiffness value of links, this phenomenon is not seen. What could be the reason for this?
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