سقف تیرچه بلوک | قسمت پنجاه و نه | فاصله بین تیرچه ها | حداکثر دهانه تیرچه

This free, comprehensive course covers all aspects of sustainable building from 0 to 100, including the concept of sustainable building as a sustainable construction course. It is structured with key timestamps: 00:00, 02:34, 03:18, 04:19, and 04:34.