BUILDING STATISTICS
Building Name: Chestnut Hill Academy Science & Technology Building
Location and Site:
500 West Willow Grove Avenue
Philadelphia, PA 19118
The building is located on the campus of Chestnut Hill Academy, a Pre-K to 12th grade college preparatory school for boys.
Building Occupant Name:
The building is home to the Science & Technology classrooms and labratorys as well as offices for faculty.
Occupancy or function type:
The building has two stories. The first story will consist of classrooms and laboratories, second story classrooms/laboratories and faculty offices and the second story.
Size:
The Science and Technology Center has a building footprint of 9,200 SF and consist of approximately 26,870 SF. It has a total of two and a half stories, the first and second floors consist of classrooms, laboratories, and offices. The half story housing mechanical equipment.
Number of stories about grade/total levels:
The Science and Technology Center has two and a half stories above grade.
Project Team:
Owner:
Chestnut Hill Academy
www.chestnuthillacademy.org/
Owner Representative:
Aegis Property Group
www.aegispg.com/
Architect of Record:
Lilley Dadagian Architects, Inc.
www.ldarchitects.com
Associate Architect:
Krieger & Associates Architects, Inc.
www.kriegerarchitects.com
General Contractor:
Turner Construction Company
www.turnerconstruction.com/
Structural Engineer:
Roome & Guarracino, LLC
http://rgeng.com/
Civil Engineer & Landscape Architect:
Cairone & Kaupp, Inc.
www.caironekaupp.com/
Ecological Design Consultant:
M2 Architecture
www.m2architecture.net/
MEP Engineers:
Bruce E. Brooks & Associates
www.brucebrooks.com/
Dates of Construction:
Start Date: November 2007
Completion Date: November 2008
Actual Cost information:
Overall Project cost of $9,600,000.
Project Delivery method:
CM @ Risk
Architecture:
Design and Functional Components:
The Science and Technology Center will be a dedicated classroom and laboratory building with office space. The two and a half story masonry and stucco building will blend with the school’s material and building design throughout the campus. The building and site work has been designed to reach LEED Silver/Gold certification. The exterior frame will be comprised of metal studs with sheeting, vapor barrier and rigid insulation. The frame will be faced with a façade consisting of punch windows as well as a glass curtain wall all framed with brick veneer and stucco. The sloped roofs will be comprised of asphalt shingles and the flat roofs will make use of high reflective membrane as well as metal panels. The roof tops will be outfitted with photovoltaic cells, solar panels and a wind turbine. The energy gathered from these renewable sources will partially provide energy to the outside arboretum lighting as well as power the robotics lab and aid in domestic hot water. Parking lot made of porous paving with an underground retention system to catch and reuse grey water. A court yard and arboretum will tie the building together with the rest of campus and also allowing students an educational learning experience.
Major National Codes:
Philadelphia Building Code Supplements 2003
International Building Code (IBC) 2006
Zoning :
Educational (E)
Part II
Construction:
Chestnut Hill Academy hired Turner Construction Co. as the CM/GC on the project due to their experience with the construction of other LEED rated school and laboratory buildings. All contracts held with Turner are lump sum. The Science & Technology Center is located between Willow Grove Ave. and Springfield Avenue. To the front of the building is the existing Inn Building which is approximately 75’ away from the entrance. A track field is located directly behind the building. All deliveries to site were timed for specific stages of the construction process. The erection of the building was done using a 60 ton hydraulic crane.
Electrical System:
The electrical power will be an extension of the campuses infrastructure. The main feeder will be branched from the neighboring inn building providing 480/277V to the Science & Technology Center. A 400A breaker at the main distribution panel will receive the supply. The overall system consists of 12 electrical panels. The emergency power will also be provided from the Inn buildings power grid.
Lighting System:
The buildings lighting system will be primarily florescent with Lutron’s EcoSystem digital electronic dimming ballasts. The EcoSystem utilizes sensors to detect additional outside light levels then automatically dims the interior lights to save energy. It also has occupancy sensors to turn the lights off when the rooms are unoccupied. The system has controls to allow an individual to control their light increasing or decreasing output to improve productivity and increase energy savings. This system could potentially save 50% of lighting electricity in return saving energy.
Mechanical
The majority of the mechanical system is located on the half story above the second floor. It will consist of two air handling units (AHU) 6,500 & 8,000 CFM with packaged energy recovery wheels and economizer systems. The first floor will be supplied from the 6,500 CFM AHU and the second floor will be supplied by the 8,000 CFM AHU. The supply air will be controlled by a variable air volume system. There will be a 57.1 ton chiller installed at a remote location for system use. The domestic water, fire suppression, heated water and power will be supplied from the campuses central plant as an extension of the campuses infrastructure.
Structural System:
The primary structural system for the Science & Technology Center will be structural steel with steel braced frame for lateral support. The foundation system will be 4000 PSI reinforced concrete strip footing and concrete wall. The bottom of footing will need to be located at a minimum depth of 3’ for frost protection. Reinforced concrete spread footings will be used as the base for each structural steel column. The first floor will consist of a 5", 4000 PSI 6 x6 welded wire fabric (WWF) reinforced concrete slab-on-grade. The second and attic floor slabs will be 5 1/4“ concrete and metal deck reinforced with WWF and rebar ties to the steel columns. The use of shear studs which will protrude through the metal deck and will be welded to the steel beams create a composite reaction with the steel members and the concrete slab. The structural steel system will be comprised of columns ranging from W8x24 to W8x48 and beams/girders ranging from W8x10 to W24x84. The steel braced frame will have a combination of hollow structural steel (HSS) and wide flange sections. The HSS will be field welded to plates connecting the HSS to the structural wide flange sections creating a resistance to lateral forces.
Fire Protection:
The fire protection system will be a wet pipe sprinkler system designed for a NFPA 13 light hazard and ordinary hazard occupancy. Supply water for fire suppression will be provided by the campus infrastructure. There will also be fire department connections on the exterior of the building to provide additional water.
Transportation:
There will be one passenger traction elevator for the building. It will be a 2500 lb capacity elevator with a 6.7 hp motor and travel at 150 feet per minute. There will be a stop on each of the two floors. There will be two sets of stairs in the building one in the Northeast corner and the other in the Southwest corner.
Special Systems:
The New Science & Technology Center will be seeking LEED Silver rating. The certification will be gained by several sustainable features such as photovoltaic cells, solar panels, a wind turbine, grey water collection system and porous paving. The electricity gathered from the photovoltaic cells and wind turbine will be used as additional electricity for building use. The solar thermal panels will help heat water which will cut the amount being taken from the campus infrastructure. The designers planned on using innovative technology with the use of a roof top weather station which can monitor temperature, wind speed, and direction. As well as an interactive meter wall which will display information collected from the energy saving devices and environmental monitoring station, which teachers may use in their lessons.
|