Loma Linda, CA
Dennis and Carol Troesh Medical Campus
Scope/Solutions
The new Dennis and Carol Troesh Medical Campus is Loma Linda University Health’s flagship building with more than 400 hospital beds for adult and pediatric patients, and at sixteen stories, it is also one of the tallest hospitals in California. The structure is founded on a base isolation system to mitigate seismic risk associated with several nearby faults. SGH provided construction engineering services to the steel fabricator/erector for the project.
With 24,500 tons of steel, the building is one of the heaviest steel-framed buildings in North America. The weight created challenges, requiring careful considerations, particularly for wind and earthquake loading, to ensure the building remained safe and stable during the multi-month erection. SGH evaluated the structure and collaborated with Schuff Steel to develop an erection plan. Highlights of our work include:
- Reviewed the structural design to understand predicted behavior with lateral loads
- Designed shoring and bracing, including an efficient lateral-load-resisting system to temporarily stabilize the heavy structure during erection
- Developed an erection and welding sequence for the moment frames, minimizing building distortion to help the erector meet allowable construction limits
- Specified lifting requirements for single columns, some with weights over 50 tons
- Designed temporary support for large, cantilevered balconies
- Worked with the Office of Statewide Health Planning and Development, who reviewed project documents and proposed construction methods to ensure erection activities and the completed structure met the regulations
Project Summary
2019
900K
Key team members
