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The S. Anne and C. Michael Armstrong Medical Education Building
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The Johns Hopkins University School of Medicine
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Baltimore, Maryland 21231 |
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4 Stories and 1 mechanical floor on the roof |
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TEAM |
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The Johns Hopkins University |
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Ballinger |
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Ballinger |
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Ross Infrastructure, Inc. |
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Rummell Klepper & Kahl |
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Barton Malow Company |
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The Lighting Practice |
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Shen Milsom & Wilke, Inc. |
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Mahan Rykiel |
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June 2007 - June 2009 |
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$55,000,000 |
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$41,000,000 |
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$96,000,000 |
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Design-Bid-Build |
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The Johns Hopkins Medical Education Building is very unique. Due to the time |
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nature of the medical program, the students have almost anything they need within |
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the four walls of the medical education building. From cafés, lounges, kitchens and |
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lockers to lecture halls, labs, conference rooms and faculty offices, almost every need |
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of the students can be met within the building. |
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The exterior shell of the building mainly consists of brick with stone to accentuate the L |
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shape of the building and other architectural features of the façade. A huge glass |
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curtain wall faces the southwest side of the building, opening up the four story atrium to |
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the exterior landscape and allows daylight to penetrate the innards of the building. |
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The ground floor holds a large lecture hall, café, and a large amount of lobby and open |
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space to hold different functions. Most of the west side of the building is used for |
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maintenance and storage. The second floor is mainly comprised of different college |
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areas with kitchens and lockers. It also holds administrative space and a large |
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learning lab and meeting room. The third floor consists mainly of lab rooms and a |
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computer room. Along the glass curtain wall are several meeting rooms as well. The |
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fourth floor holds a large anatomy laboratory that spans most of the east side of the |
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building. Along with that there is another lecture hall, meeting rooms along the glass |
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curtain wall and showers and locker rooms for students and faculty. The roof holds |
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three large, c-shaped air handling units. |
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International Building Code 2003 |
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NFPA 13-2002 |
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ASHRAE Standard 90.1 |
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Baltimore City Building, Fire and Related Codes 2003 |
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Local Zoning Laws of the City of Baltimore, Maryland |
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The exterior walls of the Medical Education Building primarily consist of a brick veneer |
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cavity attached to a steel stud framing system. The first floor of the building consists |
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of an aluminum curtain wall storefront system with 1 inch insulating glass units. Above |
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the main entrance extrudes a similar aluminum curtain wall with 1 inch insulating |
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glass units on the second floor extruding out from the building. Supporting this three |
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story cantilever on the west and south sides of the building are six large columns to |
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match the color of the façade. The main entry has two sets of sliding glass doors |
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underneath a large canopy creating a vestibule to better control the change in |
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temperature in the building during harsh climates.
The roof consists of a roofing ledge |
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membrane system on top of rigid insulation on top of a roof concrete slab. A cast |
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stone ledge outlines the roof. |
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PRIMARY ENGINEERING |
SYSTEMS |
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Lighting |
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The primary type of lamp used throughout the Anne and Michael Armstrong Medical Education Building is the linear and compact fluorescent lamp to minimize energy usage and to meet the design criteria. The majority of the circulation space and classroom space consists of compact fluorescent linear fluorescent downlights and wallwashers. The first floor auditorium, full height atrium and exterior promenade below the second floor also use metal halide fixtures along with fluorescent fixtures to achieve higher illuminance levels throughout the larger spaces. Each classroom space will have a Lutron Grafik Eye lighting dimming system integrated into the audio visual equipment.
The full height glass curtain wall along the southwest exterior facade of the building emits a large amount of natural daylight to penetrate far into the building. The large skylight on top of the atrium also adds a considerable amount of natural daylight into the building interior. The central circulation space, student group rooms and central meeting rooms are impacted the most from the daylight. These spaces have elaborate sensor and switch combination systems to minimize the use of electricity and to maximize the lighting levels in the various spaces. |
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Electrical |
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The Armstrong Medical Education Building consists of a radial system to power the building tapping power from the campus distribution system. The service comes from a 13.2kV transformer behind the adjacent pump house northeast of the building. The power enters the building in the Normal Electric room E116 to power the main switchboard. The main switchboard has 6 switches that distribute 480Y/277V power and 1 switch that distributes 280Y/120V power to a low voltage distribution panel. Two of the 480Y/277V lines connect to the emergency power. A 300KW 480Y/277V emergency generator is located on the northwest end of the site.
The secondary voltage system for the Medical Education Building is 480Y/277 volts, 3 phase, 4 wire. This system serves the majority of the lighting and mechanical loads. There is also a 480 volt, 208Y/120 volt, 3 phase, 4 wire transformer serving the low voltage distribution panel. This distribution panel feeds most of the receptacle loads in the building from an 800A busway. It also provide power to LCD screens, vending machines and projector equipment throughout the building.
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Structural |
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The foundation is a 5", normal weight slab on grade reinforced with a 6x6
W2.9xW2.9 welded wire fabric located 2" below the top of the slab. The floor
structural systems are 3-1/4" lightweight concrete systems on 3" deep 18 gage
galvanized metal decking. The roof slab is a 4-1/2" normal weight concrete system
on a 3" deep 18 gage galvanized metal decking.
The floor slabs on each floor are supported mainly by beams ranging from W14 to W21. The second floor beams are slightly larger along the glass curtain wall to support the southwest promenade. There is an extra line of W16x 26 beams as well as extra W21 beams to support the extra load.
The skylight roof will be a 1-1/2" deep, 20 gage galvanized metal deck supported by
a system of W12X14 and W16X36 beams and girders with a W36X260 across the
middle of the skylight. |
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Mechanical |
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The mechanical system in the building is a VAV Reheat system with hot water reheating except in the anatomy labs where there is a constant system. There are (3) 45,000 CFM Air handling units on the roof. A large insulated return air plenum is also integrated into the skylight structure above the central atrium space. |
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Fire Protection |
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The building has a fully sprinklered design on all levels allowing 250 GPM hose stream. The automaticfire pump is located in the fire pump room, room 123, on the first floor. It is capable of supplying 750 gallons per minute with 75 head psi. The majority of the structure is rated at 2 hours including ceilings, floors, elevator shafts and stairwells. |
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Transportation |
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There are three stairwells and three elevators that reach every interior floor within the building. The three elevators are located all on the west side of the building. The stairwell and elevator closest to the north end of the building reach every floor of the building including the roof. The central staircase is along the east side of the central atrium. The last staircase is on the southeast side of the building. |
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Telecommunications |
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The Medical Education Building consists of a large audiovisual system integrated throughout the building. Throughout the classrooms and meeting rooms are interactive whiteboards combined with projectors. The anatomy lab consists of touchscreen plasma screen TV stations throughout the space. The auditorium consists of one interactive whiteboard on each half of the space and a large permanent projection screen with speakers behind them. |
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Special Systems |
None. |
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