Irving




The structure is a one-story classroom building with precast concrete tilt-up panels.  Due to its saw-tooth profile, the retrofit design is more complex than that for a typical roof profile. The approved design calls for a complete strengthening of the roof system in light of poor performance with tilt-up construction during previous major seismic events.

The retrofit design provides a lateral force system that incorporates structural steel braces in place of current steel rods at the large window openings. The retrofit also involves tying the paneled walls together to prevent against out-of-plane failure.