Take it easy, friends, I am doing a strengthening project for the first time and unfortunately I am not very familiar with this subject. I made a performance analysis of an old 2-storey building, but the result is collapse. Is there a chance to save it? I added a reinforcement curtain, but some beams have brittleness, while old curtains have both GB and brittleness, what can I do? Do I need to strengthen these elements in place or is it impossible to strengthen the project is attached . I will be glad if you help