12th East Apartments
The 12th East Apartments consist of two three-story apartment buildings that are connected by a concrete balcony walkway that spans the two buildings, and an exterior stair system. Each apartment was designed to be structurally independent from a seismic perspective, which presented challenges when designing the concrete walkway connection. FOCUS engineers developed a structural expansion system that allows for lateral drift so that each building can move independently while still being connected. This solution met all code requirements and was detailed in a way that made it cost efficient and easy to construct.