Calculation of Response Modification Factor for an Existing All-Concrete Elevated Tank Pedestal
A pushover analysis of an existing hollow cylindrical pedestal of a concrete elevated water storage tank is presented. The analysis is based on the three-stress-invariant cap model incorporated in LS-DYNA. The computed results include stresses related to the failure surface of concrete at first damage and at maximum load and the lateral-load deflection curve. The pushover data is used to approximate the response modification factor in seismic response analysis of the pedestal.
2013 Structures Congress, Proceedings of the 2013 Structures Congress, ASCE