San Mateo, CA Seismic Retrofit

A Seismic Retrofit in San Mateo, CA.

New Anchor Bolts at an Existing Wall.

New Framing Clips.

Layout for the New Foundation.

Layout for the New Foundation.

Open Ceiling to Connect New Steel Moment Frame.

Open Ceiling to Connect New Steel Moment Frame.

Ready for Concrete.

Ready for Concrete.

Dowels into the Existing Concrete.

Dowels into the Existing Concrete.

Fireproofing Applied.

Fireproofing Applied.

New Plywood Shear Wall.

The Steel Moment Frame Supported In Place.

The Steel Moment Frame Supported In Place.

Ready for Concrete.

Ready for Concrete.

New Concrete Grade Beam.

New Concrete Grade Beam.

Final Clean-up, All Done.

Final Clean-up, All Done.

To strengthen an older apartment building, we added anchor bolts, hold downs and plywood to the existing walls to create shear walls, and then installed a steel moment frame at the Garage opening to stiffen the open side of the building.