University of Tabriz Journal of Civil and Environmental Engineering 2008-7918 44 77 2015 02 20 Seismic Evaluation of Steel Frames with Different Connection Conditions of X-braces Seismic Evaluation of Steel Frames with Different Connection Conditions of X-braces 81 92 3414 FA Saman Bagheri Faculty of Civil Engineering, University of Tabriz Vaheedeh Babazadeh Faculty of Civil Engineering, University of Tabriz Journal Article 2015 04 19 Steel frame X-brace Connection Nonlinear analysis Seismic analysis https://ceej.tabrizu.ac.ir/article_3414_fd5e51af5cd35746828424c60606db7f.pdf