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The work presented in this paper serves as numerical verification of the analytical model developed in the companion paper for nonlinear dynamic analysis of multi-base seismically isolated structures.To this end,two numerical examples have been analyzed using the computational algorithm incorporated into program 3D-BASIS-ME-MB,developed on the basis of the newly-formulated analytical model.The first example concerns a seven-story model structure that was tested on the earthquake simulator at the University at Buffalo and was also used as a verification example for program SAP2000.The second example concerns a two-tower,multi-story structure with a split-level seismic-isolation system. For purposes of verification,key results produced by 3D-BASIS-ME-MB are compared to experimental results,or results obtained from other structural/finite element programs.In both examples,the analyzed structure is excited under conditions of bearing uplift,thus yielding a case of much interest in verifying the capabilities of the developed analysis tool.
The work presented in this paper serves as numerical verification of the analytical model developed in the companion paper for nonlinear dynamic analysis of multi-base seismically isolated structures. To this end, two numerical examples have been analyzed using the computational algorithm incorporated into the program 3D- BASIS-ME-MB, developed on the basis of the newly-formulated analytical model. The first example concern a seven-story model structure that was tested on the earthquake simulator at the University at Buffalo and was also used as a verification example for program SAP2000. The second example concerns a two-tower, multi-story structure with a split-level seismic-isolation system. Summary of verification, key results produced by 3D-BASIS-ME-MB are compared to experimental results, or results from other structural / finite element programs. both both examples, the analyzed structure is excited under conditions of bearing uplift, thus yielding a case of much interest in verifyin g the capabilities of the developed analysis tool.