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Bennington College Student Center
Plaza Building
Dr. Marie Kane Student Services and Administration Building, Chaffey College
Richard J. Klarchek Information Commons, Loyola University
The Lavin-Bernick Center for Student Life, Tulane University
MIT PDSI
Syracuse University, S.I. Newhouse School of Public Communications, Newhouse III
Woodbury University Architecture Studio Building
Yale University Sculpture Building Gallerythe PeopleArchitect Personnel in architect's firm who should receive special credit: Architect of record: Interior designer: Engineer(s): Mechanical Engineer: Structural Engineer: Landscape/ Civil Engineer: Consultant(s): Lighting: Acoustical: Other: Environmental building & Energy: Curtain Wall Consultant: Code Consultant: LEED Consultant: General contractor: Photographer(s) Renderer(s): Solomon Cordwell Buenz CAD system, project management, or other software used:
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the ProductsExterior cladding: • Outer skin of West curtain wall: Cable supported glass wall designed by Advanced Structures Inc. and installed by Enclos. • Inner skin of West curtain wall, East window wall and cafe VS-1 Point supported window wall designed by Innovation Glass and Installed by Trainor Glass • Punched windows in structural precast cladding and link to existing Cudahy library • 4-sided captured United States Aluminum system installed by Trainor Glass Concrete: Roofing: Sloped roofing: Tile/shingles: See sloped roof above Windows: • East window wall and west wall parapet BAS controlled awning windows with chain actuators by Supermaster • Punched windows in structural precast cladding Manually operated awning windows Aluminum: See windows above Glazing: Hardware: Hinges: Ives FBB1 Closers: LCN Exit devices: Bloomcraft & Von Duprin Security devices: Gunnebo Interior finishes: Suspension grid: USG 1/8 Fineline Demountable partitions: KI Genius Wall Cabinetwork and custom woodwork: Dooge Veneer: Kahrs Wood Flooring: Cabinetwork: Plastic Laminate casework is specified in Wilsonart laminates which are GreenGaurd certified. Custom Woodwork: all specified with 10% recycled content, low emitting adhesive & sealant Paints and stains: Benjamin Moore paints specified with low VOC and which are in accordance with the Green Seal Standards Wallcoverings: Plastic laminate: Wilsonart in Brushed Chestnut, Canyon Zephyr, Monterey Haze, & Burnished Chestnut Special surfacing: Floor and wall tile: • Stone Design ¾” thick polished granite slab(s) used for bathroom vanities • Rossi USA Group honed limestone slabs in entry vestibule • Vermont Slate Company ¾” thick honed slate at help desk “bookends” • Stone Source Midwest ¾”thick polished porcelain slab in Reading Room fireplace surround and hearth • Caretti terrazzo flooring and stairs • Zodiaq 1-1/2” thick solid surface quartzite countertops in café • Daltile 8” x 8” ceramic tile in men’s and women’s restrooms • 1” x 1” ceramic tile mosaic blend in men’s and women’s restroom. • 6” x 6” ceramic tile cove base in men’s and women’s restrooms • 4” x 4” ceramic tile in café kitchen area Resilient flooring: Similarly, Armstrong Dissipitative tile is used in network rooms and has the same characteristics. Carpet: Raised flooring: Camino Modular Systems Inc. Furnishings: Reception furniture: Fixed seating: Tables: Lighting: In the main spaces of the buildings, Charter Sills worked directly with Focal Point Lighting to provide a modified custom version of their existing “Twelve” fixture. The fixture for Loyola was designed to have (1) T5 fluorescent lamp in the center for the indirect lighting component and a custom “window” cutout design with a micro-glow lens to provide the downlight into the space. This fixture was run in continuous rows, with custom lengths to fit within the pre-cast cove ceiling system. In the hallways, Focal Point “Ave B” slot fixtures were recessed into the drywall ceiling to provide circulation lighting. In the classroom at the ends of the building, Focal Point’s “Equation” recessed 2x2 Microglow lens fixture provides downlight and washed the vertical surfaces of the room with their indirect/direct optics. The Student breakout study rooms were provided with Cooper Lighting Corelight “Vertechs” fixture with adjustable optics for direct and indirect lighting. The fixture was suspended from the ceiling with (2) T5 fluorescent lamps. Downlights: Task lighting: Conveyance: Plumbing: Additionally, landscaping will be watered with a high-efficiency irrigation system that will deliver a 50% reduction in water usage for on-site plantings. Finally, the building’s green roof will work to absorb rainwater and relieve some of the runoff into Lake Michigan. A number of water efficiency measures were employed in this building. Among them are ultra flow urinals in the men’s restrooms. Where a conventional urinal uses as much as 1 gallon per flush (gpf), the urinals at the Information commons use only 1/8 gpf. Standard low flow urinals typically use ½ gpf. The toilets used are all water saving of the dual flush variety. With this design less water is used for flushing liquid waste (1.1 gpf) as opposed to solid waste (1.6 gpf). The lavatories in all the restrooms are of a low design using only ½ gpm per faucet. Fixture Specs: • WC: Crane 3446-1.5 with Zurn Z6000AV-Df Dual-Flush Valve • Urinal: Zurn Z5798 Urinal System with Zurn Z5755 Urinal and Zurn ZEGG003AG 1/8 GPF Sensor Flushometer • LAV: Crane 1981 Tiara with Zurn Z-81104-3M-GH Faucet and Zurn G63507 .5GPM Aerator Add any additional building components or special equipment that made a significant contribution to this project: Attached for reference is the building management system Design Intent document which was written to give a complete, yet concise description of the building design and control intent. Add any additional building components or special equipment
that made a significant contribution to this project: In addition, wind pressure flowing across the top of this double-skin cavity helps exhaust warm air from the building by pulling the air through automated windows at the cavity’s top. Located in this cavity is the primary shading device for the western facade. Four-inch horizontal blinds that track the sun’s movement throughout the day reflect radiant energy and protect the interior of the building from excess heat gain while allowing natural daylight to light the space. When the outside environment is unable to naturally heat or cool the internal space to comfortable levels, an energy efficient means to heat or cool is needed. The building automation system automatically closes windows and the double-skin cavity. The open space relies on a combination of radiant concrete ceilings and mechanical under floor air to ventilate the open space and achieve optimal interior comfort. Throughout the ceiling is an integrated loop of radiant PEX tubes that carry chilled or heated water. A vaulted, pre-cast concrete ceiling is utilized to provide thermal mass, which efficiently holds thermal energy and releases hot or cold energy slowly over time. Thermal radiation from the ceiling acts as the primary means to heat or cool the large open space between the limestone bookends. Radiant heating and cooling was chosen because it uses 1/20th the amount of energy when compared to a traditional forced air mechanical system. The building’s efficiency is further improved because unconditioned chilled water from the central plant is pumped through the radiant tubes in the ceilings to cool the building in the summertime. HVAC Design Intent: • Minimize the solar heat gain during cooling month by controlling the motorized shading systems for the open areas. These are horizontal louver blinds in the ventilated double façade space on the west side (i.e. between the inner and outer façade and external to the conditional space). These blinds can be controlled by automatically rotating the angle of the blinds or by raising the blinds. When the outdoor illuminance value exceeds 29 kLux and the sun is in a position allowing direct radiation, the blinds will modulate the temperature build up in the interstitial unconditioned space. Further the temperature build up in the interstitial unconditioned space will be moderated by opening the cavity damper in the floor and the motorized awning windows at the top of the three story double façade space creating a stack effect. This space will be further moderated during cooling mode only by allowing relief air from the building to ventilate through two west side inner façade motorized floating control windows on each floor. Controlling the internal roller shades on the east side shall minimize solar heat gain on the east side. To meet the City of Chicago natural ventilation code, the east side windows were required to open directly to the outdoors. Thus a single east side façade was selected and the east side shading is internal. To create a partial barrier between the east façade and the shading to facilitate ventilating the heat build up, a roll up shade was selected for this side. Therefore the control of the east side shading is moving the roll up shade up or down. • Maximize the effectiveness of the natural ventilation systems when outdoor conditions allow during non heating modes. With the exception of two windows per floor on the west inner façade as described above, the remainder of the inner façade west side windows will be controlled as two position. In contrast, all of the east façade windows will be operated as floating control. When outdoor conditions allow, the mechanical cooling systems will shut off and by proper position the motorized windows allowing outside air to cross ventilate the open area and rise up through the double façade space and out the upper double façade awning windows located in the stack above. Since Information Commons is intended on being a 24/7 facility, much of the natural ventilation hours of operation will be in the evening. There will also be a hybrid mode where the natural ventilation will be assisted by the chilled ceilings provided the outdoor dew point temperature is 4 degrees above the ceiling slab temperature. • Close motorized east façade windows whenever there is a risk of rainfall to prevent water from entering the building. • Position the east façade windows during the natural ventilation mode such that regardless of the velocity of the east wind off the lake that papers will not be disturbed at the occupant level. • Meet ASHRAE standard 62.1 indoor air quality standard in the open areas by demand ventilation control (DVC) of outside air being supplied to the ducted under floor air distribution system. During the summer months the underfloor air will typically be supplied at 63 degrees during the winter months it will typically be supplied at 70 degrees. • Meet a significant portion of the sensible cooling load for the open areas with the chilled ceiling. This increases the energy efficiency of the system for three reasons: • As a heat transfer fluid, pumping chilled water will use approximately 1/20 of the pumping energy that moving an equivalent BTU/H of air with fans. • Due to the fact that a significant aspect of comfort is related to the radiant energy exchange between our bodies and our surroundings, the chilled ceilings will allow the occupants to be comfortable at a higher than typical temperature. We expect 77 degrees to be the operative temperature with the chilled ceilings. • Return water to the chilled water plant will be diverted to IC for cooling the chilled ceilings. Using return water improves the energy efficiency of this system. • Prevent condensation from ever forming on the chilled ceiling by maintaining the ceiling temperature a safe margin above the dew point. The chilled ceiling is a very large mass and will change very slowly. Due to this fact, it is important to control the humidity in the space whenever the chilled ceiling system is active. The latent load or humidity in cooling for the space shall be controlled as follows: • The outside ventilation air for the open areas is being conditioned through a three coil run around system that will significantly improve the dehumidification capacity of these systems. The warmer the outside air, the more effective this configuration is related to dehumidification. • There is a separate return air path on the open area air handlers (AHU-1 thru 4) with staged coils that will provide dehumidification of the space. By staging the coils in the return air path, the air that passes through the active coil can be cooled by 55 degrees for maximum moisture removal and mix with the room temperature air through the in active coil to supply air to the underfloor system in the 63 degree range. • The classroom units are conventional VAV systems with cold air being supplied at the ceiling. These systems will assist the dehumidification of the adjacent open area space. • Provide heat recovery of exhaust air in the winter months to reduce the energy required to heat make up air in the four open area air handling units (AHU-1 thru 4). Therefore, during winter months the building pressure is maintained by controlling the exhaust fan speed as part of the AHU-1 thru 4 units serving the open areas. As mentioned above the building pressure in mechanical cooling is controlled by relieving air into the atrium through a few select modulating windows in the inner west façade. • Provide daylight harvesting by allowing indirect light in through the glass façade while avoiding glare and automatically dimming or shutting off artificial light. • Provide additional sensible cooling if needed for the open areas by increasing the under floor air supply and obtaining the additional air required by re-circulating air through the return air path in AHU-1 thru 4. • Meet the smoke evacuation requirements required by the City of Chicago by opening up the bypass damper and increasing the companion exhaust fan for systems AHU-1 thru 4 to full speed. • The primary heating system for the open areas is the perimeter fin tube beneath the raised floor. In non-raised floor areas (stair wells etc)-hot water baseboard is used. The secondary heating system is the radiant ceiling system. • Due to the step loads in the classrooms, there are conventional VAV units designed for those spaces with the air supply in the ceiling. • The café and the partial 4th floor meeting space are conditioned with conventional single zone air handlers. The internal shading (internal to the glass) in these areas is manually controlled. • With occupancy sensors and time of day scheduling, minimize the energy consumption of the systems serving these spaces. • Provide radiant floor heating in the winter for the winter garden entry way to buffer temperatures. • Control the temperature of the under floor air supply for the open areas to avoid comfort complaints related to drafts. The floor diffusers are designed for high entertainment of secondary air to minimize this concern. Typically the supply air shall be approximately 63 degrees. The minimum supply temperature shall be 62 degrees. Building Shell: Structural Precast: Chillers: |
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