Welcome to Hiro McNulty's AE Senior Thesis e-Portfolio
Building Statistics
General Building Data:
- Building Name: Hyatt Regency Hotel and Conference Center - Location and Site: Pittsburgh International Airport 1111 Airport Boulevard
Pittsburgh, PA 15231 - Building Occupant Name: Global Hyatt Corporation - Occupancy or Function Types: Primary Occupancy: Hotel Secondary Occupancy: Conference Center - Size: 275,000 Sq. Ft. - Number of Stories Above Grade: 11 Story Main Tower (+1 partial level below grade) 1 Story Conference Center (+1 partial level below grade)
Primary Project Team:
Owner: Dauphin County General Authority
www.thegeneralauthority.com
Architects: Primary - L. Robert Kimball & Associates
www.lrkimball.com
Associate - Thompson, Ventulett, Stainback, and Associates
www.tvsa.com
Structural Engineers: DeSimone Consulting Engineers
www.de-simone.com
MEP Engineers: L. Robert Kimball & Associates
www.lrkimball.com
Electrical Engineers: L. Robert Kimball & Associates
www.lrkimball.com
General Contractor: Dick Corporation
www.dickcorp.com
Architecture
The Hyatt Regency is located adjacent to the Pittsburgh International Airport’s Landside Terminal and is the only hotel on airport property. The building’s architecture is designed to compliment that of the terminal buildings. The 11-story tower houses 336 guest rooms, including 11 suites, designed make guests’ stay comfortable and convenient. The Hyatt features a coffee bar, health club, indoor pool, sauna, and Mediterranean restaurant among other amenities. The conference center features 20,000 sq. ft. of function and 7,400 sq. ft. of pre-function space and the largest hotel ballroom outside of downtown Pittsburgh.
The tower’s exterior is a combination of pre-cast concrete panels and a glass and aluminum curtain wall. The conference center is clad with pre-cast concrete, spandrel glass, and metal paneling. At entrance level, around the main lobby, a curved glass curtain wall welcomes guests to the Hyatt. The roofs at both levels are flat, rubberized asphalt membranes.
- Zoning and Historical: Commercial
FAA Advisory Circular AC 150/5190-4A
“A Model Zoning Ordinance to Limit the Height of Objects Around Airports”
Due to its proximity to the existing airport, the Hyatt must meet all FAA regulations.
- National Code: BOCA 1996
Primary Building Systems
Structural:
The structural system is divided into two parts: the main tower and the low-rise conference center. At ground level, both parts of the building use 6” slab on grade with 6x6 W2.0x2.0 WWF reinforcement. Concrete reinforcement is specified by ACI 318-89. All bolted steel connections are A325 or A490 slip critical, ¾” long bolts. Lateral resistance is typically provided with steel braced moment frames, and concrete moment frames.
Main Tower: The main tower is primarily a cast-in-place concrete structure with an exterior curtain wall. The tower’s foundation consists of piles spaced on an approximately 27’ x 20’ grid. The pile caps extend from the top of shale to between 1’ to 21’ below the main level based on changes in grade. The concrete columns are typically sized at 22” x 28” or 22” x 32”. Typical floor thickness is a one-way 6” reinforced concrete slab with filigree inlays, with an 8” slab at the roof.
Low-rise: The conference center is a steel structure consisting of average bay sizes of approximately 25’ x 25’. The ballroom adds a large bay size of approximately 72’ x 130’. The conference center’s foundation consists of various sized spread footings and grade beams. Spread footings range in size between 5’x5’x12” to 14’x14’x27”. Grade beams range in size from 18”x24” to 26”x40”. Typical column sizes range from W10x33 to W10x49. Beams are typically W21x44 to W24x76, depending on span. The roof decking is a standard 3”-18 GA. roof deck.
Construction:
The Hyatt was constructed in accordance to the FAA regulations to building height in proximity to an airport. The design phase of the building started in March 1998 and Dick Corporation, the General Contractor, was permitted to move on site in November 1998. Construction was completed in May 2000. The project was delivered via. construction manager at risk. The total building cost totaled $32 million.
Electrical:
The primary electrical supply is an exterior 2500kVA, 480/277V transformer. From the main transformer, feeders distribute the supply to various transformers through feeders ranging from: 4-wire, 3 inch down to 3-wire, 1¼ inch. The electrical system is backed up by a 600A, 400kW, 480Y/227V emergency generator. Each floor of the tower has a transformer to step down from 480Y/227V to 208/120V to meet lighting and receptacle power requirements. Power is then distributed to 3 switchboards per floor with a 4 wire, 2½ inch feeder.
Guest rooms typically feature 4 duplex wall receptacles plus 2 additional receptacles in the bathrooms. Conference rooms typically have 4 duplex wall receptacles as well as 14 quadraplex receptacles. The service rooms, such as the office spaces, have 2 or more duplex receptacles each.
Lighting:
Lighting is provided by both fluorescent and incandescent lighting based on location. The conference rooms, lobbies, and ballroom are typically illuminated with 150W incandescent lighting; while the ballroom also has multiple series of 7 cable suspended pendant luminaries totaling 330W each. The guest rooms and hallways in the main tower also have incandescent lighting and range from 50W accent to 150W luminaries. Service areas including housekeeping, mechanical rooms, electrical rooms, and offices use standard 32W fluorescent lighting. The restaurant features incandescent lighting similar to the conference rooms but also incorporates 50W halogen cable luminaries and monorail single circuit track fixtures
Mechanical:
A total of 13 main air handling units (AHU) provide air throughout the building. Each AHU is routed to a VAV box, supplying approximately uniform cfm to various spaces. Additionally, there is a make up air unit supplying 11,500 cfm to the kitchen. The tower incorporates 3 rooftop heat recovery fresh air units providing around 12,000 cfm of fresh air each, approximately 1200 cfm to each floor. In addition, supply fans provide 4510 cfm (410 cfm per floor) to pressurize and ventilate the stairwells. Each guest room bathroom typically has 80 cfm exhaust.
4 gas-boilers in the mechanical room supply hot water to the building, while 2 cooling towers located on the roof of the low-rise section provide chilled water. The boilers are set atop 4” concrete pads, below the AHUs in the mechanical penthouse located above. Each water supply (condensed, chilled, and heated) is distributed through 2 pumps with 1 additional stand-by pump for backup.
Additional Engineering and Engineering Support Systems
Fire Protection:
The building is classified as ‘fire-resistive’ based on the Pennsylvania L & I Fire and Panic Code. It has been designed with 2 hour fire rated walls around the elevators and stairs. The other rooms including guest, mechanical, and storage rooms have 1 hour fire rated walls. All areas have automatic sprinkler systems installed. The automatic sprinklers and 2½-inch fire department hose valves are supplied by a 1250 gpm diesel fire pump located in the North-West corner of the low-rise section.
Transportation:
A covered moving walkway connects the Hyatt to the landside terminal of the Pittsburgh International Airport, allowing travelers easy access to the hotel from the airport. Primary transportation within the tower of the building is 4 passenger elevators for guests and 2 additional elevators for transportation between the lower and main lobbies. 2 service elevators are also present in the main tower. Secondary methods of transportation are the 2 emergency stairwells at the ends of the tower as well as a few staircases in the low-rise section of the building.
Telecommunications:
The guest rooms feature high-speed internet as well as television and two-line speakerphones with data ports. All conference rooms feature high-speed wired and wireless internet, videoconferencing, and telephone jacks. The state-of-the-art Foerster Boardroom also features a 42” plasma television with VCR, DVD, CD, and a Bose sound system.
Special Systems:
The building features a swimming pool, steam bath, and
sauna, so moisture protection is more of a concern around those areas. In
addition, due to its proximity to an airport, the building has been designed
to conform to FAA height restrictions. Otherwise, it doesn’t have
any particularly unique aspects to its design.