Pomi Aschenak Construction
Advisor: Mr.Ray Sowers
General Building Data
Building Name:
Location and Site:
Occupant Name:
Occupancy or Function Types:
Size:
Number of Levels Above Grade:
Total levels: 5 Levels
Iowa River Landing Arena
Coralville, Iowa
Assembly Indoor Sporting, Group A-4
B, A-2, A-3, A-4, S-1
241,525 SF
3 Levels
4 Levels
Volleyball Court Rendering
Project Team
Owner:
Construction Manager at Risk:
Architect:
Civil Engineer:
Structural Engineer:
Mechanical Engineer:
Engineering Electrical Engineer:
Ice Systems Design:
Food Services:
City of Coralville
M.A. Mortenson Company
JLG Architects
Shive Hattery
Heyer Engineering
Obermiller Nelson Engineering
Obermiller Nelson Engineering
Stevens Engineering
Aramark
Architecture
The Iowa River Landing will serve as a multi-purpose facility for the University of Iowa and the community of Coralville. The Arena will support the requirements of the Iowa Club Hockey Team and the University of Iowa Women's Volleyball team with a seating capacity of 5,100. Theses facilities can also transform to host multiple athletic events like wrestling, basketball, and concerts. In addition to theses facilities, the Iowa River Landing will also house five basketball courts and turf spaces. The lower level of the arena will be occupied by The Johnson County Historical Society, Hawkeye Modle Railroad Club, and Antique Car museum in addition to mixed-use retail space. Table 1 highlights the square footage of spaces based on their function.
Building Enclosures
The building facade materials consist of curtain walls, brick, and pre-engineered metal wall panels. The northwest facade, where the main entrance is located, consists mostly of aluminum-framed curtain walls with 1” clear insulated glass or 1” insulated tempered spandrel glass. The northeast side, which contains most of the retail space, has face brick surrounding the aluminum-framed storefront with 1” clear insulated tempered glass. The south and east facades are composed of pre-engineered metal wall panels and face brick.
Ice Hockey Rink Rendering
Concert Rendering
Basketball Court Rendering
Roofing
Sustainability
Features
The majority of the roofing is constructed with a fully adhered EPDM roofing system. Under the roofing membrane, polyunsaturate board insulation with a ½” minimum thickness is used. The green roof is constructed from a 4” standard depth modular vegetated roofing system. This system is comprised of a root barrier, EDM, ½” glass mat faced gypsum panels and polyunsaturate board insulation. The green roof is d 4” modular vegetated roofing system
Function of Space and Area
The Iowa River Landing is installing a green roof. This design aims to promote drainage and distribute moisture buildup. The green roof will also be beneficial for noise and heat reduction.
Green Roof
Major National Codes
Zoning Requirements
Table 3
Construction
Mortenson Company has been selected as the Construction Manager at Risk to provide preconstruction and construction services. Mortenson Company and the City of Coralville have a guaranteed maximum price (GMP) contract. The construction schedule is approximately 19 months, from December 18, 2017, through Substantial completion in July 2020. The subcontract pricing arrangement is a Lump Sum. Although the site is located in a very populated area, the City of Coralville has purchased or is in the process of purchasing most of the surrounding land around the Iowa River Landing Arena as part of a $190 million reinvestment in the Iowa River Landing.
Structural
The conventional steel system in the retail and museum centers utilizes traditional steel construction. This includes a typical bay sizing of 7’ x 30’ that incorporates W16x31 beams and W18x35. The roof framing follows a similar bay dimension size, however, a steel decking and joist system are used. This is typical of modern commercial buildings. Girders remain the same size on the roof as the remaining floors. Due to cost-effective measures, the building does not utilize moment connections, but rather lateral forces are distributed using braced framing systems throughout the conventional steel structure. Foundationally the Structure is supported by a concrete footing system with steel piles that anchor the concrete footers. This creates a deep foundational system to support the girth of the structure. Floors are comprised of concrete floor slabs on composite metal deck.
The Iowa River Landing Arena is utilizing a pre-engineered metal building structural system (PEMB) for the arena and conventional steel for the fieldhouse, retail, and museum.
The PEMB structural system is comprised of the primary and secondary framing steel, panel fasteners, panel clips, sealant, and closures. The primary framing members consist of rigid frames that are welded “I” beam sections with end wall frames for the roof beams and columns that are cold-formed “C” or “I” sections. The secondary framing includes cold-formed “Z” or “C” purlins and grits. The secondary framing will be pre-punched for field bolting to the primary framing. Diagonal bracing will be used in the roof and sidewall as well as flange bracing for the webs and grits to help remove longitudinal loads.
Mechanical
The Fieldhouse, Museum and Retail space are conditioned by multiple zones and single zone vav rooftop units Two air handling units will also be provided Each of these units will be using DX cooling and gas heating. Two air-cooled condensing units will be supplied on the lower level will serve the two air handling units on the mezzanine level. on the lower level will provide Although not clearly defined, 13,430 SF is dedicated to accessory storage and mechanical equipment throughout the building.
In addition to these systems, there will be two 17500 lbs desiccant rooftop units that will be used for the dehumidification cooling, heating and makeup air requirements for the ice rink. The desiccant RTUs are comprised of the desiccant wheels, a wheel drive motor, a process air circuit, and a reactivation air circuit. The process air circuit includes outdoor/return air dampers, pre-cool coil, a rotating desiccant wheel, post-cool coil, indirect-fire natural gas heaters and supply fan with a variable frequency drive. The refrigeration system for the ice rink includes three 6-cylinder reciprocating compressors, one flooded shell, and tube chiller system, a high-pressure receiver system, two rink pumps, evaporative condenser, and associated components.
All the building automation will have BACnet MSTP integration with the desiccant units an RTUs to manage and monitor the status of the mechanical units.
Lighting
The arena will be comprised of house lights on the network lighting control system. Theses lights will be dimmable up to 10% for quality spectator views. The lighting in the Concourse level is primarily controlled through the network lighting control system. During events, the occupancy sensors will be disabled and a predetermined lighting scene will be displayed. These lights will also be dimmable up to 10 %.
Electrical
The Iowa River Landing Arena will connect to the underground utility services to receive primary power supply to the building. Two Utility transformer along with two 4000 current transfer cabinets are used to provide the secondary power supply. This gets distributed to 3 switchboards each 480/277 V, 3-phase 4 wire system.
Included in this system is a packaged engine-generator with 300 kW, 375 KVA system capacity. The generator operates as a stand-by mode, allowing it to automatically transfer the building loads to the generator for two hours if a utility failure occurs. The generator and panel board containing all the ancillary electrical components will be housed in a weatherproof, sound attenuated, insulated, skin-tight style enclosure.
In the event of failure or removal of the primary power supply, the control electronics will automatically receive power from the Unison ERN Series Control Enclosures. It will instinctively deactivate once the primary power is active again.
Special Construction
The arena will be comprised of house lights on the network lighting control system. Theses lights will be dimmable up to 10% for quality spectator views. The lighting in the Concourse level is primarily controlled through the network lighting control system. During events, the occupancy sensors will be disabled and a predetermined lighting scene will be displayed. These lights will also be dimmable up to 10 %.
Transportation
The Arena is equipped with two hydraulic passenger elevators (elevator B & D) and one hydraulic service elevators. Elevator B serves the lower level, north retail level an upper level. Elevator D serves the lower level, hotel level, and concourse level. The service elevator reaches the lower level, arena mezzanine, and concourse level. None of the elevators provide access to the roof level. The passenger elevators are rated at 35000 lbs and the service elevators are rated 4000 lbs.
There are 10 different sets of stairs included in this project. Stair D104 is the primary vertical transportation with access to the lower level, hotel level, concourse and turf level. Stair D123 and D022 are the only stairs that reach the arena mezzanine. Similarly, stair B002 and B105 are the only stairs that access the upper lease level.
Fire Protection
The Iowa River Landing Arena is designed to comply with National Fire Protection Association (NFPA - 13), along with all required state and local codes. General and multipurpose dry chemical type fire extinguishers will be provided through the building along with fire-rated cabinets. Quick response sprinkler heads will be installed throughout the building. Beam smoke detectors will be used to provide smoke detection. The main FAS control panels and the remote FAS panel will be designed with control switches to manually activate the smoke removal system. Occupant notification will be provided through a combination of speaker/visual notification,
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Final Abstract - Post to CPEP
Building Statistics Part 2: Update and Post to CPEP
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