Modal analysis and harmonic response analysis of the Petronas Twin Towers

Abstract

The Petronas Twin was once the tallest building in the world and the tallest twin tower nowadays. We are interested in the twin towers structural performance. In this regard, a simplified geometric model of the Petronas Twin Towers has been developed, and the structural performance has been simulated using the finite element analysis software, Ansys. The analysis primarily focuses on investigating the behavior of the towers when subjected to wind loads, and other external factors that may affect the structural integrity of the buildings. We were especially interested in buildings performance when a damper is not existed or when it is small. The modal and harmonic response analyses are used to observe the response of the Twin Towers at different frequencies. The mesh independence study is also conducted for the accuracy of the results.