1. Faculty of Engineering and Architecture, Civil Engineering Department, Erzurum Technical University, 25050 Erzurum, Turkey
2. Maali Steel Company, Atateknokent, 25030 Erzurum, Turkey
3. Engineering Faculty, Department of Civil Engineering, Ataturk University, 25030 Erzurum, Turkey
4. Academy Sağlık Hiz. Müh. İnş. Taah. Elekt. Yay. Company, Atateknokent, 25030 Erzurum, Turkey