a tree in front of a building

University of California, Davis, Olson Hall

Degenkolb retrofitted this three-story classroom building, which was previously determined to be “very poor” under the University of California Seismic Safety Policy. A large portion of the structure utilized precast elements in conjunction with cast in place concrete elements. An ASCE-41 analysis and retrofit design was developed by Degenkolb and permitted in just six weeks. The retrofit used carbon fiber (FRP) extensively to both strengthen elements and introduce seismic collector elements. At the University’s request, the building was open for occupancy Monday through Friday during construction. The FRP allowed installation of the retrofit during the weekends and over the winter break dramatically reducing disruption to the University.


  • Fiber reinforced polymers retrofit solution
  • Design build approach
  • Collaborative approach to the design including the University, Peer Reviewer, Architect, Contractor, and Sub-contractors.


  • Building occupancy offered Monday through Friday during construction limiting disruption.
  • Design Build team approach allowed for the development a design that was constructible with limited disruption.
  • ASCE-41 analysis and retrofit design developed and permitted in six weeks
Project Stats
Client Stafford King Wiese Architects, The Boldt Group, University of California,
Square Footage 56,000
Construction Cost $1.7 million
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