2995 Middlefield Completed

Sierra Engineering Group was the structural engineer-of-record for the recently completed office building at 2995 Middlefield in Palo Alto, CA.  Hayes Group Architect’s distinctive modern approach has resulted in a unique structure.  Though the footprint is limited, the lines expressed by the use of horizontal shade elements along the front façade and recalled along the south elevation’s triangular trellis evokes the image of a much larger structure, giving it a sense of belonging without overpowering the surroundings. Varying roof lines and the architect’s desire for shallow structure at the overhangs presented some unique structural opportunities.  Working closely with Hayes Group, we chose a horizontal steel truss system to brace the full height round steel columns along the Middlefield elevation. In keeping with the steel brace theme, the building’s lateral load resisting system makes use of a concentric braced frame system concealed within the elevator and stair walls, leaving plenty of room for the use of glass along the exterior walls resulting in an inviting interior space.

Structural Engineer: Sierra Engineering Group

Architect: Hayes Group Architect’s

Contractor: South Bay Construction Inc.

Owner: GVA Kidder Matthews