Application of Incremental Dynamic Analysis for Estimating Seismic Performance of High-Rise Bundled Tube Structures

In this paper, the seismic performance of steel bundled tube structures subjected to near-field records by directivity effect is investigated. IDA (Incremental Dynamic Analysis) that is a powerful and step-by-step method is used. By limiting the intensity of records in the range of very high seismic region of Iranian Seismic code 2800 as the site of near-field records, IDA procedure is summarised and acceptable responses aregained. This procedure approves the good seismic performance of bundled tube structures as high-rise buildings.

Keywords:

bundled tube structures , Tall buildings , IDA procedure , near-field earthquakes