The proposed seismic work will include the installation of approximately 52 seismic dampers placed at specified locations on the inside perimeter of the building's exterior walls. The dampers will be installed diagonally and attached at the bottom and top of the existing steel column bays requiring incidental fireproofing at beam and column modifications. Steel reinforcing plates will be added to existing steel beams and columns to support the installation of seismic damper brackets. Additional seismic reinforcing is required at the existing rooftop mechanical penthouse and at the building foundation at locations along the 1st floor seismic dampers. In addition to the seismic work, work would also include partial restoration of interior building finishes impacted by the installation of the seismic braces. Limited MEP investigation and safe-off work is anticipated. Site and building accessibility improvements would include path of travel upgrades along the city sidewalk and building entrance, installation of new ADA handrails and guardrails at existing interior stairs. New accessible signage, restrooms and a drinking fountain are also anticipated.
