Hojjati SMA. Seismic Design Adequacy of Existing Reinforced Concrete Dual-System Buildings in Rasht, Iran: A Comparative Study of the 3rd and 4th Editions of the Iranian Seismic Code (Standard 2800). J. Civ. Asp. Struct. Eng. 2026;3(2):108-116. doi:10.48314/jcase.v3i2.81