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Lift RC-22
The Canyons Village (Park City, Utah)
Tyler Conaboy
Mechanical Option
Building Name: Lift RC-22
Location & Site: The Canyons Village (Park City, Utah)
Occupant Name: Replay Resorts
Occupancy (Function): A3, R-2, S2 (Ski Resort Lodging)
Size: Approximately 155,000 sq. ft.
Number of Stories: 6 (5 plus a penthouse)
Height: 82'-0"
Primary Project Team:
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Owner: Replay Resorts
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Architect: OZ Architecture
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Civil Engineer: Stantec
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Structural Engineer: Monroe & Newell Engineers, Inc.
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MEP Engineer: BG Buildingworks, Inc.
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Lighting Consultant: Clanton & Associates
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Contractor: Layton Construction Co., Inc.
Anticipated Dates of Construction: April 2017-April 2018
Cost: Approximately $34 M
Project Delivery Method: Design-Bid-Build
*The two images to the right show the building location and site context.
BUILDING STATISTICS
Architecture:
Modernly designed by OZ Architecture, the Lift building captures the major themes of adventure, fun and family throughout. With the use of various public spaces, the building can achieve their goal of encouraging social interaction between guests. While the “public experience” is important, the owner would like visitors to have a “private experience” as well. OZ designed individual units beautifully so that families and individuals can feel as if they are in the comfort of their own home. Units are planned to connect with nature. This is accomplished in various ways, including floor plans that allow for all units to have magnificent views of the snowy mountains. A rendering below, courtesy of OZ Architecture, shows the view of the slopes that guests will have during their stay. Every building has challenges during the design phases of the project. In regards to architecture for Lift RC-22, this includes considering those snowy slopes of the mountain. Elevation changes and how the building fits into the site can be observed in the building perspective below provided by OZ Architecture.
Zoning & Applicable Codes:
The Lift building is located just outside of open recreation space. This is important when discussing the occupancy and function of the building. Operating as a ski resort, this building requires plenty of open space around the building for visitors to enjoy. A zoning map is provided below.
Applicable Codes:
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Building Code: 2012 International Building Code (IBC)
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Mechanical Code: 2012 International Mechanical Code (IMC)
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Plumbing Code: 2012 International Plumbing Code (IPC)
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Electrical Code: 2011 National Electric Code (NEC)
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Energy Code: 2012 International Energy Code (IEC)
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Local Amendments: 2012 Utah Health Code
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Fire Code: 2012 International Fire Code (IFC)
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Other: 2012 National Electric Code (NEC)
Building Enclosure:
The building envelope, including exterior walls and roof assemblies, was considered to promote sustainable design in mechanical systems. With high thermal resistance values, each assembly helps with reducing heating and cooling demands. This ultimately leads to a better energy performance for the building. Exterior walls include a lot of window area using insulated glass to allow for a great view of the mountains without compromising solar heat gains. Example details of exterior walls are displayed below.
Primary Engineering Systems
Construction: The newest addition to the Canyons Village community, Lift RC-22, is scheduled to begin construction in April 2017. Considering the location, there are many challenges in construction. Working during the cold ski season limits the type and amount of work that can occur. It is critical to the overall construction schedule that excavation, foundation systems, and concrete forming work be done during the skiing offseason. In the event that there are delays in construction, concrete forming may be complete during the cold, winter months as long as temporary heating is provided to ensure proper curing. The project location also poses challenges with material deliveries and storage. High Mountain Road is the single path providing access to the Lift RC-22 site. This is important to consider when planning and scheduling all equipment and material drop offs. A project site storage plan is show below.
Electrical: Rocky Mountain Power will be the utility company providing electricity to Lift RC-22. Power to the building’s panelboards and loadcenters will be distributed from a single 480/277-volt, 3-phase, 4-wire pad mounted exterior transformer. Various conduit such as PVC or RMC may be used for distribution within the building. EMT conduit has been specified as the raceway material used for electrical distribution in the parking garage. If a power outage occurs, a diesel generator is designated to provide stand-by power to the building’s main electrical service while automatic transfer switches will serve life safety loads.
Lighting: Many of the dwelling units include non-decorative lighting sources which are scheduled to be LED fixtures. These lights have many advantages including decreased energy usage and maintenance. Guests are able to control these lights using Legrand Adorne Series switches and dimmers. Different areas of the building utilize other lighting and controls. The vaportite lighting fixtures used in the parking garage are controlled by occupant sensor dimmers. Common spaces such as the lobby and coffee/bar area utilize decorative lighting. Wall box dimmers will be used to control the decorative pendant fixtures in these areas.
Mechanical: The Lift RC-22 lodge is anticipated to include 155,000 square feet of conditioned space. Two rooms in the building will host the boilers, water-cooled chiller and cooling tower. These pieces of equipment are part of the building’s central plant which serves as the heating and cooling source for the four-pipe fan coil units. Ventilation, along with heating and cooling demands in each dwelling unit will be met by the use of these fan coil units. Corridor areas of the building will utilize three make-up air units to meet all loads while hot water unit and cabinet heaters will serve the parking garage and common areas. In the mountains of Utah, snow won’t be a stranger to Lift RC-22 and its guests. A plate-and-frame heat exchanger has been specified as the building’s snowmelt system. This heat exchanger will also be responsible for heating the outdoor hot tubs.
Structural: Foundation, column, floor and roof framing systems are all part of the building’s structural system. The foundation consists of slab on grade which is to be a minimum of 5” thick with #3 bars spaced at 24” o.c. for reinforcement. Concrete footings range in size and thickness throughout and are designed to 4000 psi of force. Design documents specify footings to be anywhere from 6’x6’ to 30’x30’ with a minimum 1’-6” or maximum 3’-6” thickness. Floor system concrete slabs are post-tensioned and typically 7-1/2” thick. An area requiring an increased thickness is the pool slab which is designed to be 18” thick. All 5000 psi concrete columns range in size from 12”x12” to 24”x24”. Roof framing is complete primarily using W16 beams that frame into W18x55 or W18x97 sized girders.
Additional Engineering Systems
Fire Protection: Automatic sprinkler and standpipe systems are to be designed to NFPA 13 and NFPA 14 respectively. The sprinklers are scheduled to be semi recessed in finished areas with quick response in residential units. Being semi recessed allows for the sprinkler heads to blend with the architecture of the building. Similar to how a mechanical system would use zoning, sprinkler zones are separated by floor. Stairwells will be the home of Class 1 standpipes. For every floor landing within the stairwells, a 2-1/2” fire hose valve connection shall be provided.
Transportation: Guests arriving will most likely have a lot of bags and luggage. To assist guests in bringing their belongings up to their room, two elevators may be accessed at all levels of the building. Two stair towers are also available to use for guests who wish to walk or have already moved in. To comply with egress codes, these stairwells have been located on opposite ends of the building from each other.
Telecommunications: All guest rooms will be provided with telephone service along with hardwired high-speed internet access. Common areas will have access to wireless internet connection along with TV service. Satellite television will also be provided in residential units. For administrative areas, the local area network (LAN) is provided to operate the point-of-sale (POS) system and a property management (PMS) system. PVC conduit shall be used for telephone/data/television services. Level P1 has a designated area to be used as the main equipment room housing equipment used for these services. Equipment racks in this room are to be floor mounted.
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