BUILDING STATISTICS
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building name |
hospital for special surgery |
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location |
535 east 70th street, new york, new york 10021 |
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building occupants |
doctors, researchers, and patients |
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function |
healthcare facility – acute care |
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size |
90,790 sq. ft. |
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numbers of stories above |
12 stories
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owner representitve |
specialty management company |
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architects |
cannon design |
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mep engineers |
cannon design |
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structural
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ysrael a. seinuk, p.c. |
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construction dates |
begin 2006 to end 2008 |
never built due to redesign |
overall building cost |
$40 million |
2005 estimate |
project delivery |
cm at risk - single contract |
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codes |
nyc building code 2004 and nfpa life safety 101 |
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zoning |
ulurp – uniform land use review procedure
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historical property |
existing healthcare campus on the upper eastside. not a historical landmark. |
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exterior façade |
hss river building is a 12-story glass curtain wall building facing the east river on the upper eastside of manhattan. the building sits on top of the fdr drive highway with 10 caissons supporting the building driven into the bedrook. the façade contains alternating patterns of glass that has different reflection properties and is on a slant as it reaches to the top. on the south elevation, the building contains two skywalks on the third and twelfth floor connecting it to the existing east wing of the hospital. each glass panel is held in place by vertical or horizontal mullions and structural silicone with extended fins protruding outward. the roof system is steel decking with concrete along with insulation on top of that. a fully adhered epdm membrane then covers the insulation. |
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| Construction: |
Construction for this project was due to start in 2006 and end in 2008. The building never got built due owner’s desire for a redesign after 100% Bid set. The project was supposed to be a CM at risk, single contract construction costing $200 million. |
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Electrical: . |
The electrical service distribution through the building is composed of (3) feeder bus ducts (labeled ‘B’ – 2000A, 120/208V, ‘C’ – 1600A, 120/208V and ‘D’ 1600A, 120/208V). The typical electrical closet on each floor has (1) 600A main lug only (MLO) distribution panel which feeds (1) 100A MLO branch circuit panel for lighting, (1) 225A MLO, 2 section branch circuit panel for receptacles and power devices and (1) 225A MLO branch circuit panel for heat pumps. The emergency generator serving the new River Building is 350 kW, 480/277, 3p, 4w and is proposed to be located in the penthouse of the River Building |
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Lighting: . |
The HSS River Building provides special luminaires for examination tasks and patient care. These includes recessed exam lights, lensed troffers, X-ray in-use light, and X-Ray room reading lights. Most of the light fixtures are F32 T8 lamps provided by Cooper Metalux and Litecontrol |
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Mechanical: |
The HSS River Building has one McQuay Vision Air-Handler supplying 100% outdoor air serving multiple zones per floor in the building. The unit provides the outdoor air requirement for the entire 11 occupied floors. In each zone, the indoor is mixed with the outdoor air and conditioned by a concealed ceiling water source heat pump. The building maintains pressure by exhausting air from all restroom and locker areas. Three water-to-water heat pumps provide simultaneous cooling and heating to individual zones on each floor. The fluid used in the heat pump loop system is a mixture of water and 35% glycol. The loop consists of one 375-ton cooling tower and two 3,000MBH heat exchangers to provide heat rejection and extraction to maintain the temperature difference from 55F to 90F for the heat pumps to operate. The cooling tower is a closed loop system that does not allow the water and glycol mixture to be released into the atmosphere. A chemical treatment system is also in place to purify the mixture and remove any impurities and debris from the fluid system. Con Edison, the utility provider for the HSS River Building, provides high-pressure steam for the building. The air-handling unit, cooling tower, and heat exchangers use the steam in the mechanical system. The high pressure steam is first stepped down by two pressure reducing valves (PRV) and then distributed to the air handling unit to provide preheat during the winter and dehumidification during the summer. The low-pressure steam is used in the cooling tower to provide heat to the basin sink to prevent the water from freezing during the winter. Lastly, the low-pressure steam is used in the heat exchangers to provide additional heat for the heat pump loop system. |
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Structures:
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The HSS River building is located on top of the FDR Drive, with (10) 36 meters deep caissons anchored to the bedrock below. With this foundation, the building rises (12) stories above ground supported by 6ft x 4ft spread footings on the interior columns. Typical beam sizes are W12x26 spanning 25ft 4inches and spacing at 8ft 4inches. (22) shear studs provides composite action to metal decking. Typical girder sizes are W12x65s and W12x120s spanning 25ft and spaced at 25ft also. The building also contains two bridges on the 3rd and 12th story to connect the HSS River Building to the existing hospital. The bridge is built on W8x24 beams with braces that are W8x24 and columns at W14x99. For lateral forces, the building uses chevron brace frames for the 3rd and 12th floors along with a truss system on the 1nd and 2nd floors |
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senior thesis | the pennsylvania state university | cannon design | architectural engineering | ae lab | contact maxwell chien
this page was last updated on Thursday, March 20, 2008 0:36 AM
this page was last updated on Thursday, March 20, 2008 0:36 AM
note: while great efforts have been taken to provide accurate and complete information on the pages of cpep, please be aware that the information contained herewith is considered a work-in-progress for this thesis project. modifications and changes related to the original building designs and construction methodologies for this senior thesis project are solely the interpretation of maxwell chien. changes and discrepancies in no way imply that the original design contained errors or was flawed. differing assumptions, code references, requirements, and methodologies have been incorporated into this thesis project; therefore, investigation results may vary from the original design.