Location: Renton, WA

Owner: The Boeing Company

Structural Engineer: MLA Engineering


MLA was retained as the structural subconconsultant for the boiler room project.  The existing boiler building superstructure is a steel moment frame building founded on concrete piles and grade beams. The design team was tasked with supporting additonal transformers and switch gear in the operational-critical building.  The Owner established amaximum down time for the boilers as two weeks. The solution we developed that best responded to Boeing’s operational objectives was to expand the existing mezzanine area within the building. Key to the success of this design was distributing the new loads such that no triggers for seismic upgrade requirements would occur.

MLA provided a seismic analysis of the original building, followed by an iterative process of adding steel moment frames in strategic locations that would protect the existing structure from overload and fit within the highly congested space.

The design successfully met strict Boeing Project and CAD Standards, and occurred on an accelerated time table that fit into specified plant shutdowns.