Apex Plaza

As the structural engineer of record, SGH designed the structure and collaborated with the fabricator to create concealed connections for the timber. The structure features:

• Four-story concrete podium with post-tensioned concrete transfer beams
• Six-story, 187,000 sq ft mass timber superstructure, including mass timber braced‑frames and cross-laminated timber floors
• Steel-framed rooftop canopy structure supporting a large solar panel array

SGH assisted with the building enclosure design, including roofing, fenestration, facade systems, and below-grade waterproofing. Highlights include:

• Helping select window and curtain wall systems for specific applications
• Defining curtain wall performance and testing requirements and outlining building enclosure criteria for the specifications
• Comparing single-ply roofing assemblies and advising on concrete coatings
• Developing details, including transitions between adjacent systems

We consulted on fire life safety requirements and compliance. Highlights include:

• Helping obtain variances for the occupied rooftop terrace and high-rise mass timber application
• Preparing a compliance approach report, including a smoke control rational analysis for a proposed atrium
• Developing fire life safety drawings documenting means-of-egress and the location of fire-rated walls