Edison Career & Technical High School

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.