PTA Engineering provided mechanical, electrical, technology, fire protection, and plumbing design services for the 277,000 square foot addition to Southwest General Health Center. The design began in a phased manner to expedite early phases of construction. Early phases of the design and construction included outdoor substation upgrades, temporary relocation of the Emergency Department, site access revisions, and relocation of back-up fuel oil service for the steam plant to accommodate the new expansion.
The Addition includes a five story tower with Emergency Department on the first floor, ICU on the second floor, and three patient floors. A two story underground parking garage is below the five-story tower, and a helipad is located on the roof.
Each floor was designed with a dedicated air handling unit to allow isolation for infection control and maintenance purposes. A 400 ton water cooled chiller and cooling tower was added to the existing 3,000 ton chilled water plant. The hi-rise expansion also incorporated a smoke control system and fire command center.
The medium voltage distribution system was expanded to address the building addition with new indoor substations. Tie-ins to the site emergency distribution system was completed for the four automatic emergency power branches required to serve the addition. To improve the sustainability of operations, manually operable switching schemes allow the complete building to be placed on generator power during extended outages.
The project architect was CannonDesign. Significant amounts of design effort went into the mockups of all major department support spaces and each of the different patient care rooms.
The entire expansion was designed in BIM 3D modeling software (Autodesk Revit). The BIM model was submitted to the contractors for fabrication and coordination purposes. After construction completion, the BIM model was updated to incorporate as-built revisions and turned over to the hospital. Southwest General intends to utilize the model for facility operations purposes and future alteration projects.