../ 1. Columns and Shear Walls.mp4 21-Jan-2026 18:01 64M 1. Columns and Shear Walls.srt 21-Jan-2026 16:55 6156 2. Sloped Plane.mp4 21-Jan-2026 18:01 61M 2. Sloped Plane.srt 21-Jan-2026 16:55 3953