seismic performance assessment of concrete moment-resisting frames with construction error against near-fault strong ground motions

Man-made structures have always been subjected to construction errors. although improvement of construction techniques decreases the mentioned errors; however, to achieve the reliable results regarding seismic performance of structures construction errors must be involved. seismic performance assessment of sampled moment-resisting concrete frames with construction error is considered as the first goal of this paper. besides, as the second goal, effects of near-fault strong ground motions on seismic performance of the sampled frames are studied. to achieve the mentioned goals, three concrete moment-resisting frames with 4, 6 and 10 stories has been designed according to the national seismic design code (standard no. 2800). nonlinear modeling of the sampled frames was implemented assuming the concentrated plasticity model by opensees tool. the hysteretic formulation of the concentrated hinges is based on modified ibarra-krawinkler (ibarra et al., 2005) hysteretic model. the modeling parameters have been verified based on relevant experimental results (haselton et al., 2016). to involve the effects of construction errors, threescenarios are considered. these scenarios consist of frames with no construction error (with no initial drift); columns initial drifts equal to the allowable construction tolerance and columns initial drifts larger than the allowable construction tolerance. the modeled frames for each scenario have been excited with two sets of strong ground motions, which consist of 20 near- and 20 far-fault events.