SUMMARYIn this report, the capabilities of the adaptively shifted integration (ASI)-Gauss code in the analysis of the seismic responses of framed structures are verified and validated by comparing the results with detailed numerical simulations performed by the parallel finite element analysis code, E-Simulator, and with experimental results obtained by E-Defense. The numerical results obtained by both codes showed good agreement with the experimental results obtained by E-Defense. Furthermore, seismic waves with unnaturally large magnitudes are applied to a high-rise building model to demonstrate the ability of the ASI-Gauss code to analyze the collapse behaviors of building frames.