WJE PROJECTS

Penn Medicine Pavilion

 
CLIENT
HDR, Inc. and Penn Medicine
LOCATION
Philadelphia, PA

Building Enclosure Consulting

WJE provided building enclosure consulting and commissioning services, which commenced during concept design to establish the building enclosure design approach and Owner’s Performance Requirements (OPR). We also provided technical assistance during design, bidding, and construction relative to air, moisture, and thermal control, as well as durability, compatibility, and constructability. During this process, we developed and helped execute the quality assurance and performance testing plan for the full building enclosure. 


BACKGROUND

The Pavilion at the Hospital of the University of Pennsylvania (HUP) is a state-of-the-art facility for advanced patient care and research. The integrated project delivery team, known as PennFIRST, was formed to design and construct the new hospital; the team included renowned architectural firms (HDR and Foster + Partners), contractors (L.F. Driscoll and Balfour Beatty), and facility and clinical staff from HUP and many other skilled trades. The building is a 1.5-million-square-foot, 17-story, 504-bed facility that includes 47 operating rooms with a project budget of $1.6 billion. It achieved LEED Gold Certification.

SOLUTION

To meet the architect’s design intent and OPR, the project utilized a custom, four-sided, structurally glazed, unitized curtain wall design approach. The system provides fully integrated air, water, and thermal control layers and was designed through a design-assist process with the fabricator to limit the risk for condensation from thermal bridging through thermal simulations and design modifications unique to this building design concept. To provide further protection in a humidified environment, the curtain wall system includes built-in redundancy to manage potential condensation development and incidental water infiltration. Curved and flat extruded corrugated panels with a high-performance coating were integrated within the opaque spandrel sections of the unitized curtain wall along floor lines to provide rigidity and durability. Curved glass was also utilized instead of a faceted facade to provide smooth transitions along the extreme ends of the building.

Performance testing for air, water, structural, and thermal was performed as part of a full-scale preconstruction mockup to verify the design concept before fabrication, and performance was validated in the field through a series of comprehensive tests that started with an initial benchmark installation and continued at regular intervals throughout the project. Structural load testing of the curtain wall anchors was also performed at representative dummy anchor locations on each floor to verify their load-carrying capacity.