Rochester, NY
Edison Career & Technical High School
Scope/Solutions
The Edison Career and Technical High School was constructed in 1977 with post-tensioned waffle and flat plate concrete slabs. The school has experienced multiple post-tensioning strand failures dating back to 1983. SGH evaluated the condition of the building’s enclosure and post-tensioned concrete structure, and provided repair recommendations.
Our investigation included:
- Documenting the condition of representative post-tensioning strands in exploratory openings at low points of tendon trajectories, anchorage regions, slab edges, and expansion joints
- Evaluating the condition of the building enclosure and identifying possible sources of water ingress into the post-tensioning tendons
- Testing the strength of the existing concrete in our Applied Science & Research Center
- Assessing the effectiveness of prior repair and retrofit efforts
- Analyzing the structure’s existing capacity, with and without failed post-tensioning, and evaluating its ability to support the required loads
We identified damage to post-tensioning tendons primarily due to water infiltration and recommended structural and waterproofing repairs to address areas of immediate concern and long-term repairs to improve the building’s performance. SGH is currently designing repairs that will be implemented as part of a multi-year, multi-discipline modernization of the school.
Project Summary
2025
570K
9M Estimated
Key team members
