BOEING
Mezzanine Boiler Building

Location: Renton, WA

Owner: The Boeing Company

Structural Engineer: MLA Engineering

MLA Engineering (MLA) was retained as the structural subconsultant for the Boeing Mezzanine Boiler Room project. The original boiler building superstructure was a steel moment frame building founded on concrete piles and grade beams. The design team was tasked with supporting additional transformers and switchgear in the operational critical building. The client established that the maximum down time for the boilers could only be 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 met the strict Boeing Project and CAD Standards while successfully accelerating the use of a schedule that fit the mandatory plant shut down timeline.