Research Information System
10th International Conference on Structural Dynamics (EURODYN), Rome, Italy, 10 - 13 September 2017, vol.199, pp.3540-3545
Moment-resisting beam-column connections including emulative and mechanical components are widely used solutions in precast construction practice. Hybrid connections are constructed by welding of corbel plates to beam end plates where beam longitudinal rebars are welded, and casting of concrete through the designated gaps in beam tops and column elements at site. This study presents the development of a numerical model for hybrid connections to be used to assess seismic performance of multi-storey precast concrete structures. The numerical model includes truss-based elements for beam-column connections and fiber-based elements for beams and columns. Lateral load-drift ratio relations for the measured and computed cyclic responses of a precast connection are compared. In addition, two-dimensional three- and five-storey precast concrete frames are designed for seismic performance evaluation. Frame models are analysed by performing nonlinear static pushover analyses and incremental dynamic analyses with representative ground motions. Response modification factors are obtained and evaluated for seismic design of precast concrete buildings. (C) 2017 The Authors. Published by Elsevier Ltd.