Chris Shelow

Building Statistics

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BUILDING STATISTICS
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General Building Statistics:

• Building Name: Koshland Integrated Natural Science Center
• Location and Site: Haverford College, Haverford, PA 19041
• Building Occupant Name: Haverford College Faculty & Students
• Occupancy or Function Types: Educational/Classroom/Laboratory
• Size: 185,423 gross sq. ft.
• Number of Stories Above Grade: 4 Stories
• Primary Project Team:
      o Owner: Haverford College (Physical Plant)
          Website: www.haverford.edu
      o Architect: Ayers/Saint/Gross (ASG) Architects and Planners
         Website: www.asg-architects.com
      o Engineer: CUH2A
         Website: www.cuh2a.com
      o General Contractor/CM: Skanska USA Building, Inc.
         Website: www.skanska.com
      o Laboratory Planner: Earl Walls Associates
         Website: www.ewalab.com
• Dates of Construction:
      o Phase One: 2001
      o Phase Two: 2003
• Cost: $42.6 million (Total Project Cost)
• Project Delivery Method: Design-Bid-Build

Building System Information:

Architecture:

• Architecture: The Koshland Integrated Natural Science Center (KINSC) was designed and constructed to be seen as a laboratory for the 21st century. The innovative features of the labs as well as the aesthetics are meant to stand out as “state-of-the-art” (Case Study). The design of the building involves a central core, which is the spiral stairwell, connecting two wings of the science center. The new KINSC was also designed to connect to two existing buildings, Sharpless and Hillies Halls.
• Major National Model Codes: BOCA 1993, Pennsylvania Code Title 34, ANSI A117.1 1986, ADA 1991
• Zoning: The new KINSC is to connect to two existing buildings, Sharpless and Hillies Halls
• Historical Requirements: N/A
• Building Envelope: The exterior walls of the KINSC are primarily precast concrete. The precast walls are 10” in thickness, with a few variations in some locations.  Also, the majority of the exterior walls have a façade of locally quarried stone or brick. The façade is approximately 10” in thickness as well. However, the center stairwell of the building, as well as sections of the front wall, is simply the white precast concrete panels. Throughout the exterior of the building, areas of slate can also be found. The foundation walls consist of 10” block CMU as well as precast concrete. The central stair case was constructed with spiraling rectangular windows following the stairs as they ascend. The exterior walls of the two wings are nearly symmetrical in window layout.

Primary Engineering Systems:

Construction:

The Koshland Integrated Natural Science center was designed to be adjoining to two existing buildings of the Haverford campus, Sharpless and Hillies Halls. With this being the case, there was some demolition that was necessary. A portion of each hall was demolished and excavated. The demolition included the removal of all walls, slabs, steel and concrete framing, and all footings from the foundation to the roof of the designated areas. With the new structure joining the existing buildings, the connections and portions of the new KINSC had to be retrofitted to match the existing conditions. In addition, the zoning and historical regulations of the new Science Center were to meet the requirements of the existing structures. The construction of the new KINSC was conducted in two phases. The first was in 2001, and the second in 2003. The total project cost of the new Science Center was $42.6 million dollars, or $230/gross sq. ft. The majority of the structure consisted of laboratory space and lab support offices, approximately72.5%.

Electrical:

When viewing the drawings that were received from the engineer, I noticed that the electrical drawings were not included in the package. A request has already been sent to CUH2A, the engineers on the job, and I am awaiting a response. This section will be updated upon receiving the electrical drawings.

Lighting:

The laboratories, hallways, and classrooms of the KINSC are all illuminated by suspended T-8 fluorescent lamps in bidirectional fixtures. However, the amount of up-lighting and down-lighting differ between many of these communal spaces. Fluorescent indirect lighting, fluorescent task lighting, and compact fluorescent down lights are found in the office spaces, library and some communal spaces. Manual switches are used to control the lighting in the classrooms and labs. Photocells and relay-based lighting controls the lobby and other circulation spaces. The new KINSC also offers very good Indoor Environmental Quality.

Mechanical:

The KINSC has many impressive features when it comes to the mechanical systems in the building. One of the best features is the means of ventilation in the laboratory spaces. Energy wheels are used to make “space-neutral” air. Also, many fan-coil units are used to maintain certain temperature conditions in each of the rooms. There are also a number of plenums in order to disperse the air. These energy wheels work with the other systems that were mentioned to decrease the amount of energy used to condition the air. In addition, the building contains 110 fume hoods operating at 900 cfm exhaust to rid the laboratory air of any impurities and bring in clean air from the corridors.

There are two mechanical rooms located in the new KINSC structure. One of the mechanical rooms can be found on the fifth floor penthouse on the east wing of the building, and the other in the ground floor on the west wing. There is also an additional mechanical room that is in the basement of the existing Sharpless Hall. The Haverford campus supplies the building with its hot water, while the building gets its cold water from two 240 ton chillers

Structural:

The Koshland Science Center is primarily a precast concrete structure. The exterior walls of the building were constructed of precast concrete panels with a stone or brick façade. The foundation walls consist of precast concrete and 10” CMU blocks. On all floors, there are precast interior shearwalls, as well as 10”x10” precast concrete columns. The ground floor is constructed of a slab on grade that varies in size around 4”. Floors 1 through 4 have 6” reinforced slabs over the majority of the floor. Also, on these floors, there are precast concrete planks with 2” topping slabs present in various locations in the wings. On the first floor wings, there were 10”-14” CMU bearing walls that were constructed near the central stairwell. Precast concrete beams of various sizes can be found too. The stairwells on all floors, with the exception of the central stairwell, are framed with steel beams ranging in size from W10x12 to W12x16. The roof system is constructed of steel members typically of the sizes W14x22 and W16x26. The roof is pitched and the steel for the roof is topped with metal deck, then ultimately a slate covering.

Additional Engineering & Engineering Support Systems:

Fire Protection:

On all floors of the KINSC, 6” standpipes, 2” drain riser, and sprinkler zone control valves are located in each of the stairwells. A wet fire protection system can be found on each floor of the building as well, with sprinkler heads that are rated for a minimum of 212 degrees F. On the ground floor, there are also new 6” fire alarm check valves. In addition, the ground floor houses a Flamables Storage area, which contains a CO2 fire protection system. There are also “cold rooms” located on the first and second floor of the building which have dry pendant sprinkler head systems. All structural framing members, interior walls, columns, beams, girders, and trusses have fire protection that is rated at 2 hours. All exits and means of egress are also rated at 2 hours, while the exterior walls have a 1 hour rated fire protection.

Transportation:

The central core of the KINSC is a large precast spiral staircase with cantilevered stairs. There are also 4 additional stairways, two in each wing of the building. In addition, there are two accessible elevators, one in each wing. The rated speed and loads of the elevators in unknown at this time, but will be updated as soon as information is received.

Telecommunications:

The telecommunications information for the KINSC building is included on the electrical drawings which were omitted from the package that I have received from CUH2A. A request has already been made to obtain these missing drawings. This information will be updated upon receiving the electrical drawings.