Coffman Engineers

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50 United Nations Plaza-Review of Seismic Retrofit Design and Constructability, Construction Monitoring

Services Provided:

  • Project Overview/span>
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Little details are vital. Coffman makes big things happen with little details. Providing seismic and structural design review, we revised structural details to enhance seismic performance and comply with national standards. Items like better seismic load paths, improved ductile detailing of connections to existing elements and strengthening of interconnections between new and existing foundation elements. This thorough support allowed our client to successfully improve clarity for the Owner.

We worked as subconsultants to Jacobs Engineering and also provided constructability review and construction monitoring services for this major historic renovation. The national standard used was ASCE41-06 Seismic Rehabilitation of Existing Building. During construction we reviewed various contractor submittals and made periodic site visits to verify that the contractor was performing work in compliance with the design documents.

male engineers discussing plans Coffman Engineers


San Francisco, California

Project Lead

Paul Van Benschoten, S.E., LEED AP