COMPDYN 2013 4 th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering M. Papadrakakis, V. Papadopoulos, V. Plevris (eds.) Kos Island, Greece, 12–14 June 2013 A SIMPLE APPROACH TOWARDS FURTHER ACCURACY IN STRUCTURAL DYNAMIC ANALYSIS A. Soroushian 1 International Institute of Earthquake Engineering and Seismology (IIEES) North Dibajee, West Arghavan, Tehran 19395, Iran a.soroushin@iiees.ac.ir Keywords: Time Integration, Accuracy, Computational Cost, Richardson Extrapolation, Proper convergence, Pseudo convergence. Abstract. Accuracy and computational cost are of the most important concerns in structural dynamics and especially time integration analyses. In view of the practical need to control the accuracies of time integration, with tolerable computational cost, a simple approach is in this paper proposed for enhancing the accuracies. The mere pre-requisite, which is also essential in conventional practical analyses, is proper convergence. The adequate performance of the approach is tested via a twenty-storey building in linear and nonlinear regimes. 2232