List of Articles دال بتنی Open Access Article Abstract Page Full-Text 1 - Numerical Modeling of the U-Boot Roof Behavior and Its Comparison with the Steel Deck Roofs, Cobiax roof, and Concrete Slabs Saeed Sharifi Ahmad Maleki Open Access Article Abstract Page Full-Text 2 - Numerical Study of the Position and Dimensions of the Openings on the Seismic Ductility of the Reinforced Concrete Slab - Column Connections Having Flexural Reinforcing and Shear Bolts Nasibe motazaker mohamadali lotfolahiyagin Open Access Article Abstract Page Full-Text 3 - Comparative evaluation of structural behavior of voided biaxial slab with Steel Deck roofs and RC slabs Nima Khalili Ahmad Maleki