Author: Yunus DERE
Publishing Date: 2004
Volume 19 Issue 2
In this study, nonlinear dynamic analysis of a 20-story steel building frame designed following the related codes was performed through parallel processing. For the dynamic analysis, the East-West component of the Northridge-Newhall earthquake acceleration record was considered. As the parallel processing algorithm, the Modified Iterative Group Implicit (MIGI) Algorithm was adopted. Along with the second-order effects (P-Δ), the nonlinear behavior of the material was considered. The building frame was decomposed into 2, 3, 4, 5 and 6 different domains using an automatic decomposer. The analyses are carried out on both an IBM SP supercomputer and a network of SUN workstations. As it is seen from the numerical results, MIGI algorithm produces correct results, and, increases the analysis performance significantly by allowing the use of multiple processors. Furthermore, analyses can be completed in a shorter time as the number of processors increases.
Key Words: MIGI algorithm; parallel processing; nonlinear dynamic analysis.