فهرست مقالات Prestressed Concrete Beam دسترسی آزاد مقاله صفحه چکیده متن کامل 1 - Flexural Strengthening of Reinforced Concrete Beams with Prestressed L-Shaped Sections: A Numerical Investigation Mohammad Reza Khastkhodaei Arash Totonchi Seyed Ahmad Jenabali Jahromi Abdeloued Tounsi 10.82485/bim.2025.1217117