Application of Incremental Dynamic Analysis in a Hybrid Structure

Abstract:

In the Incremental dynamic analysis (IDA), the intensity of one single ground motion is increasingly set according to a series of intensity measure (IM). The elasto-plastic dynamic analysis of the structure under different IM is then carried out to obtain the relationship between the structural damage measure (DM) and ground motion IM. When considering a set of ground motions, the analysis of DM-IM curves can be applied to evaluate the structural performance. IDA is thus seen as so-called “dynamic pushover analysis”. In this paper, the method of IDA was introduced and applied in a hybrid structure. The analytical process and results are helpful for the performance-based seismic design of hybrid structures as well as for the wide application of IDA in complex structures.