Monumental Stair at Optima Signature

Chicago, IL

Located in the Amenity area in the Optima Signature building, this 3-run stair was designed for a light, open look with the stringer/guardrail composed of 3/8” plate with narrow strips between punched openings. With detailed computer modeling of the stair structure, CSA engineers were able to control deflections and lateral stability, and to identify where stiffening elements were needed to keep the thin 3/8” plate elements from buckling, while maintaining the open feel of the stair.

Architect: Optima
Developer: Optima