Alexandria Parking Structure

Mission Bay Block 27 Parking Structure

Located in the Mission Bay Block 27 of San Francisco, designed by WRNS Studio for Alexandria Real Estate, houses 1,420 parking spaces on seven elevated levels. The structure features a metal screen with perforated imagery of California's redwood forests. This facade was design-engineered by the Design Assist Group and produced by Zahner.

WRNS Studio architects desired an abstract pattern composed of four distinct oval cut-outs. They provided tree imagery and Zahner Design Engineers processed the imagery into the myriad of circular shapes to abstract the form. For the surface, the Architects decided on a perforated bronze-anodized aluminum cladding, which covers the entirety of the metal scope for the garage.

Photo of the perforated aluminum facade system from within the garage

Detail of the perforated aluminum facade system from within the garage.
Photo © A. Zahner Co.

Photo of the engineering drawing of the perforated facade layout used on the San Francisco parking structure

Engineering drawing of the perforated facade layout used on the San Francisco parking structure.
Photo © A. Zahner Co.

Photo of Detail of the perforated aluminum facade system from within the garage

Detail of the perforated aluminum facade system from within the garage.
Photo © A. Zahner Co.

How WRNS Created its Mosaic-Perforated Metal Facade

The aluminum's punch-pattern was generated using a photograph of foliage. The image was run through several computer processes to rapidly produce the millions of custom perforated panels. Note: Zahner now offers an online tool for creating perforated metal panels at ImageWall for ShopFloor. This computer-to-machine language translation runs on the ZIRA™ Technology, a patented process (* Patent No. 7,212,688 B2 - May, 2007) for translating the architect's imagery into pixelized metal, perforated and/or bumped panels.

This project was an experimental use of the ZIRA™ Process, as the individual punched shapes were integral to the project. Instead of the typical round and square punches, the designer selected four elliptical punch patterns which were custom-manufactured to complete the surface of the screen-wall. The ZIRA™ Technology allows architects, designers, and engineers to transfer an image onto the surface of metal using physical processes such as perforation, bumped and dimpled surface patterns, as well as waterjet cut patterns and other physical alterations.

Mission Bay Block 27 Parking Structure at Alexandria

Mission Bay Block 27 Parking Structure at Alexandria.
Photo © A. Zahner Co.

Mission Bay Block 27 Parking Structure at Alexandria

Mission Bay Block 27 Parking Structure at Alexandria.
Photo © A. Zahner Co.

Alexandria Parking Structure

Mission Bay Block 27 Parking Structure at Alexandria.
Photo © A. Zahner Co.

Alexandria Parking StructureMission Bay Block 27 Parking Structure at Alexandria

 

Mission Bay Block 27 Parking Structure at Alexandria.
Photo © A. Zahner Co.

Alexandria Parking Structure

Mission Bay Block 27 Parking Structure at Alexandria.
Photo © A. Zahner Co.

Alexandria Parking Structure

Mission Bay Block 27 Parking Structure at Alexandria.
Photo © A. Zahner Co.

Alexandria Parking Structure

Mission Bay Block 27 Parking Structure at Alexandria.
Photo © A. Zahner Co.

Alexandria Parking Structure

Mission Bay Block 27 Parking Structure at Alexandria.
Photo © A. Zahner Co.

The northwest and south sides of the parking structure feature an intriguing stucco facade. The building is located in the Mission Bay neighborhood of San Francisco.

Photo of the zigzag architecture employed on the Alexandria Parking Structure

Upward view of the zigzag architecture employed on the Alexandria Parking Structure.
Photo © A. Zahner Co.

Photo of the mockup used on the WRNS concept, punched on aluminum plate metal

Mockup of the WRNS concept, punched on aluminum plate metal.
Photo © A. Zahner Co.

Photo of the perforated zigzag aluminum system used to cool and ventilate the school's parking garageDetail of the perforated zigzag aluminum system used to cool and ventilate the school's parking garage

 

Detail of the perforated zigzag aluminum system used to cool and ventilate the school's parking garage.
Photo © A. Zahner Co.

Notes

  • Completed: 2009
  • Architect: WRNS Studio
  • Type: Parking Structure
  • Systems: ZIRA™ Process
  • Services: Facade Design, Fabrication, Installation

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