List of Articles Irregular Structure Open Access Article Abstract Page Full-Text 1 - Development of Seismic Criteria for Seismic Responses of Regular and Irregular Structures in Plan considering Vertical Component of the Near-field Records Maryam Firoozi Nezamabadi Fariborz Yaghoobi Vayeghan Open Access Article Abstract Page Full-Text 2 - Presentation of Empirical Relation for the Fundamental Period of Irregular Steel Frames with EBF Steel Braces F. Omidinasab S. Baharipour