Abby Severyn | Structural
Adviser: Dr. Ryan Solnosky
BUILDING STATISTICS
Part 2
ALL PHOTOS AND IMAGES BY HGA PHOTOGRAPHY
Engineering Systems
Construction
Structural
Mechanical
Lighting & Electrical
Support
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Fire Protection
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Transportation/Conveying
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Telecommunications
Information Source: Mercy Campus Consolidation Construction Documents and Specifications provided by HGA
CONSTRUCTION
The scope of construction includes renovations to the existing hospital facilities and an addition. The project delivery method is design-bid-build. Site construction began in May 2016, and building construction started in September 2016. The expected construction completion date is November 2019.
The selective demolition phase involved removing a variety of existing elements where the addition connects to the existing hospital. These elements include steel columns and concrete walls, piers, footings, and grade beams.
Special construction is required for numerous D&T rooms. Radiation shielding, which contains lead-lined components (gypsum wall board, doors, hollow metal frames, etc.), is needed at General Radiographic, CT, Fluoroscopy, Mammography, and Cath Labs. The typical shielding is 1/16” lead lined gypsum board up to 7’-0” above finished floor.
STRUCTURAL
In the steel-framed superstructure, typical floor construction consists of 3VLI18 composite metal deck with a 4 ½” normal weight concrete topping, resulting in a total slab depth of 7 ½”. The composite concrete slab and steel deck system transfers gravity loads to composite wide flange beams and girders that are supported by W14 columns. The columns then transfer vertical loads to shallow concrete spread footings.
In the lateral system, the composite slab and deck system acts as a diaphragm to transfer loads to the lateral force-resisting elements. Steel moment frames with wide flange beams run along the east-west direction, and steel braced frames with wide flange beams and hollow structural section (HSS) braces resist loads in the north-south direction. W14 columns also support these frames and distribute loads to the shallow foundation system.
Mechanical
Heating is supplied to the new addition by a high efficiency hot water heating system consisting of four condensing type boilers. Located in the existing chilled water plant, the mechanical system also includes a 300-ton capacity heat recovery chiller and water-cooled centrifugal chillers. The heating and cooling ventilation distribution system in the new addition is a variable air volume (VAV) system.
Lighting & Electrical
LED light sources are standard throughout the facility. The lighting for interior corridors and egress lights are on a life safety circuit. Operating rooms and patient rooms will be on emergency critical power for continued operation during an emergency.
The electrical system includes four new 480Y/277V unit substations throughout the Mercy Campus. Distribution is fed downstream through low voltage transformers for 208Y/120V distribution. There are four existing 1,000 kW emergency generators that will supply emergency power to the existing facilities and addition. Emergency power distribution utilizes paralleling switchgear and automatic transfer switches.
Typical Bed Tower Bay Framing
Typical Framing at Inpatient Bed Tower with HVAC Overlay
Support
Fire Protection
As defined by the 2012 Michigan Building Code, the primary fire construction type is Non-combustible Type IA. The addition is fully sprinklered. A wet-pipe sprinkler system provides full coverage for both the addition and renovated areas of the existing facility.
Telecommunications
The telecom storage room is located in the existing hospital. The telecommunications system consists of the following:
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Audio/visual
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Intercom
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Emergency phone
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Overhead paging/ public address
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Patient Monitoring
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Nurse Call
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Security
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Local area network
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Television – cable distribution
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Master clock
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Distributed antenna system
Transportation/Conveying
The Mercy Health Muskegon contains three types of elevators with varying capacities. The addition contains four side-by-side passenger elevators that extend from the garden level to the inpatient bed tower elevator lobby at the tenth floor. These are classified as machine room-less (MRL) traction elevators. There are also three staff/service electric traction elevators. Finally, there is a single hydraulic elevator that serves the trauma center in the D&T floors. The respective capacities of each are 3,500 pounds, 6,500 pounds, and 10,000 pounds.
The addition also contains also pneumatic tube system that is used to transport medication, lab samples, and other medical materials throughout the hospital. The system network consists of 6” tubes powered by blower packages that provide the vacuum or pressure to move the carriers through the tubes. Approximately 30 computer stations control the system.