Concrete Tilt-up structures have historically had poor seismic performance, resulting in stricter code requirements over the years. The primary failure of tilt-up buildings is due to inadequate out-of-plane anchorage. However, as tilt-up building became more architecturally pleasing (instead of the box buildings), additional issues such as inadequate shear wall lengths and irregularities also became significant. Typical damage to tilt-up structures is as follows:
- Out-of-Plane Failure (Separation of walls from roof and floor diaphragms due to inadequate anchorage)
- Diaphragms (Failure of generally wood framed roof and floor systems)
- Cracks in Walls (Inadequate shear strength in walls or piers.
