I'm running a model with a site specific spectrum. When I compare the dynamic results to the ELF results, the modal story and base shears are 5 to 7 times the ELF story/base shear values. I'm thinking that there is a scaling function somewhere that I'm not seeing, or that there is an issue with the site specific spectrum data. I've looked back at the site spectrum and it appears to be correct. Is this a typical error? Please provide some feedback for where this discrepancy may be coming from.
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