Building Statistics

Part I:

General Building Data

Building Name: North Pocono High School

Location: Covington, Pa

Occupancy: Educational

Size: 230,000 sq. ft.

Total Levels: 3

Dates of Construction: July 2007 - September 2009

Base Bid: $29,027,000

Delivery Method: Design-bid-build

Project Team

Owner: North Pocono School District

Architect: Crabtree Rohrbaugh Associates

Design Engineers: Greenman and Pederson Inc.

General Contractor: Lobar Inc.

Architecture

North Pocono High School is a three level building. The front of the building has a curved facade that extends the whole length on the building. The entrance is of a typical high school with a vestibule that is a attached to all of the administrative offices taht are required, and then you enter into a lobby space where you find your way throughout the rest of the school. The school contatins a standard size gymnasium, a library, computer and science labs, and a food court. All of these spaces create an environment that is conducive to recieving a good high school education.

Codes and Zoning

2005 International Building Code

2005 International Mechanical Code

2005 International Fire Protection Code

Pennsylvania Labor and Industry Code

Covington Township Local Codes

PENNDOT

Building Envelope

Wall Type I:

4" Brick Veneer

2" Air Space

2" Insulation with an R-Value of 10

8" Structural CMU's

Wall Type II:

4" Brick Veneer

2" Insulation with an R-Value of 10

12" Cast in place Concrete

Window Type

1/4" Double Coated

Roofing

4" LW Concrete

1-1/2" wide rib 20 gauge galvinzed Steel Deck

3" Rigid Insulation

Part II:

Construction Overview
The construction on North Pocono started in July of 2007 and is planned to be completed in September of 2009.  It is approximately 230,000 square feet, and is three levels.  The delivery method was design bid build.  The project team consists of the North Pocono School District, Crabtree Rohrbaugh, and Associates, Greenman and Pederson Inc., and Lobar Inc.

Structural Overview
North Pocono’s structural system consists of a steel frame that rests on load bearing masonry walls.  There are 9 different types of reinforced wall footings that support the walls.  They range from 3’ to 7’ in width.  The most common type of rebar used in the wall footings is #5.   The steel columns however rest on 4 different types of piers that then transfer the load to one of 14 different types of footings.  The piers range in size from 22”x22” to 36”x28” with #6 and #8 bars for vertical reinforcing and #3 bars used as stirrups.  The footings have a bearing pressure of 4,000 psf and range in size from 4’x4’ to 11’x11’; they go from 12” deep to 29” deep.  All the concrete is specified to having strength of 3,000 psi and the steel reinforcing has strength of 60,000psi.  Typical floor construction consists of 4” slab-on-grade with normal weight and strength of 4,000 psi, with 6x6-W1.4x1.4 WWF reinforcing.  The upper level floor construction is 2” normal weight concrete with 3,000 psi and reinforced with 6x6 W2.0x2.0 WWF on 1”-26 gage galvanized form deck.  The total floor thickness is 3”.  North Pocono has two different exterior wall types. The first is 4” brick veneer that is supported by 8” CMU’s that have a compressive strength of 2,800 psi on the net area of the block, the second is a 12” cast in place concrete wall that supports the 4” brick veneer, again with strength of 4,000 psi. The steel frame typically consists of 24K7 or 20K8 joists for the classrooms and 10K1 joists for the corridors. The gym uses 22K7 joists on the side while 56DLH15 joists span the middle section and they all transfer the load to 96G12N32K joist girders.  The auditorium uses 56DHL17 joists that then transfer the load to the 12” concrete wall on either side of the auditorium.  The roof deck is typically 1.5” normal concrete deck with 20 gauge galvanized steel decking, they gymnasium and auditorium however are to have 3” concrete deck with 20 gauge galvanized decking.  

Electrical Overview
North Pocono’s electrical service is provided by the utility company PP&L.  The utility serves a 4,000A - 480/277 3 Phase 4 Wire switchboard.  The switchboard then sends the service to 5 Dry type transformers that step down the voltage from the 480V to 120/208V 3 phase power.   
The emergency generator is 350 KW and supplies 480/277V power to the fire pumps and elevators along with the exit lights and most of the kitchen equipment.   The generator also supplies the main electrical room along with the school’s main telecommunications and data room.

Lighting Overview
North Pocono’s lighting system consists mostly of recessed linear fluorescent lights.  The auditorium has dimming system over the seating as well as a theatrical lighting set on stage.  The gymnasium features hi-bay linear fluorescent pendant fixtures.

Mechanical Overview
The school’s primary mechanical uses 16 direct expansion air handlers with hot water heating coils.  Some of the units however need an increase in cooling capacity and that is provided by 8 condensing units.   These air handlers then provide supply air to approximately 100 variable air volume with reheat terminal units.  The water for the reheat in the terminal units is provided by two 7000 MBH oil fired boilers.  Four of the air handlers are for economizer only and provide 100% outdoor air to the space; this was done so that the other equipment such as the exhaust and return fans can be properly sized.  North Pocono’s kitchen is served by a make-up air unit and two blower coil units that also provide direct expansion cooling.

Fire Protection
North Pocono’s fire protection system uses two 15,000 gallon gravity discharge tanks.  The tanks are served by a 500 gpm pump located in the fire pump room on the first floor.  The pump then sends the water out to the school where it will be discharged by one of 9 different types of sprinklers.  The emergency system also consists of emergency lighting and exit signs as prescribed by the National Fire Protection Code

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Telecommunications
North Pocono has a voice and data communications systems.  They also have a closed-circuit television system that is available in all classrooms.  It has a public announcement system in the gymnasium as well as in the auditorium.