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BUILDING STATISTICS

General Building Data

Building Name:  

                                  Evansdale Crossings

 

Location:

                                  West Virginia University

                                 Morgantown, West Virginia

 

Building Occupant:

                                 WVU students & faculty, student services,

                                  food servces, and Barnes &Noble

 

Occupancy:

                                 Mixed Use

                                 Assembly, A-2 & A-3

                                 Business, B

                                 Mercantile, M

 

Number of Stories:

                                 5 stories above grade including a penthouse and roof deck

 

Building Height:

                                 76'-6" from ground level to 5th floor penthouse and roof deck

                                 60'-6.5" from ground level to 4th floor

 

Building Size:

                                 Net SF - 76,602

                                 Gross SF - 103,669

 

Dates of Construction:

                                 April 2014 - November 2015

 

Building Cost:

                                 $12 Million for core and shell of building

 

Project Delivery Method:

                                 Integrated Project Delivery (IPD), similar to Design-Build

Building Perspective courtesy of Strada Architecture

Primary Project Team:

Owner:

Architect:

Construction Manager/General Contractor:

Structural Engineer:

MEP Engineer:

Civil Engineer:

Project Site Information

Architecture

Site Plan courtesy of Strada Architecture

National Design Codes:

                                 2009 International Building Code

                                 2009 International Plumbing Code

                                 2009 International Mechanical Code

                                 2009 International Fuel Gas Code

                                 2005 National Electrical Code, National Fire Protection Association 70

                                 2004/2005 National Fire Protection Association with Supplement

                                 2003 International Code Council/American National Standards Institute A117.1

                                 2003 International Energy Conservation Code

                                 Americans with Disabilities Act

 

Zoning:

                                 No zoning restrictions

 

Historical Requirements:

                                 No historical requirements

Building Design & Function:

Evansdale Crossings is a modern style and spacious building, which features a composite steel deck floor system on an irregular structural grid. This floor system creates an open and spacious layout for the future tenants of the building, as well as the ability to have high floor to floor height. It also allows greater spans of beams in the structural bays. The building is a 5 story mixed-use space, with a penthouse, a space called "The Circulator" that actually separates the building into 2 different wings, and a roof deck (Image 1). The building is enclosed by a brick veneer, cast stone, storefront curtain wall system, traditional windows, and smooth metal panels that are all detailed for both wind and seismic activity (Image 2).

 

One of the major goals of Evansdale Crossings is uniting the upper and lower parts of the campus by providing elevators and indoor stairs, with the key feature being the connecting bridge to the Engineering PRT Station.

 

The overall floor layout of the building doesn't vary by much except for the 5th floor penhouse lounge and roof deck (Image 3 & 4). There can be seen a lot of open space for the future occupants of the building, which is what the owner wanted to have for a new student-centered space.

Image 1 - South Elevation courtesy of Strada Architecture

Image 2 - South Elevation courtesy of Strada Architecture

Image 3 - Typical Floor Plan courtesy of Strada Architecture

Image 4 - 5th Floor Plan courtesy of Strada Architecture

Building Enclosure

Building Facade:

Evansdale Crossings facade consists of numerous materials such as thermally broken exterior storefront system with insulated low-E glazing, traditional windows, utility "jumbo" face brick veneer, cast stone veneer with accent trim pieces, smooth insulated metal panel, cast-in-place reinforced concrete, and modular concrete.

 

The thermally broken exterior storefront system with insulated low-E glazing (Image 5) makes up a significant amount of the building facade. On the 1st floor, the system is broken-up by the brick veneer, the 4th floor system is also broken up by the cast stone veneer and the smooth insulated metal panel. "The Ciculator" is mostly covered by this storefront system, but is separated by some of the smooth insulated metal panel.

Image 5 - Wall Section of the storefront window system courtesy of Strada Architecture

Traditional windows also cover the facade in a uniform design, and they are on the 2nd and 3rd floors. There are previous images showing the windows and how they relate to the rest of the building.

 

The utility "jumbo" face brick veneer encases a major of the building's facade. It surrounds the traditional windows and separates the 1st floor storefront window system. The exterior wall system consists of the following materials:  "jumbo" face brick, air space, Polyiso Insulation Panel (Minimum R-7.5), weather barrier, exterior sheathing, metal stud framing, batt insulation (Minimum R-13), and gypsum wall board (Image 6). All of this material hangs on the CMU wall with solid grouting.

Image 6 - Wall Section of the brick veneer exterior wall system courtesy of Strada Architecture

Another exterior wall facade material is the smooth insulated metal panel that separates the 4th floor storefront window system as well as "The Circulator" part of the building. This is not a structural material rather just more an aesthetic feature to the building. This exterior wall assembly consists of the following materials:  metal panel system, Polyiso Insulation Panel (minimum R-7.5), weather barrier, exterior sheathing, metal stud framing, batt insulation (minimum R-13), and gypsum wall board. This material hangs on the exterior wall (Image 7).

Image 7 - Wall Section of the metal panel wall system courtesy of  Strada Architecture

The cast stone veneer with accent trim pieces cover only a small portion of the facade on the building. It acts as a separation of the store front window system on the 4th floor. The material acts as an aesthetic rather than structural material. This exterior wall assembly consists of the following materials:  cast stone, air space, Polyiso Insulation Panel (Minimum R-7.5), weather barrier, exterior sheathing, metal stud framing, batt insulation (Minimum R-13), and gypsum wall board (Image 8).

Image 8 - Wall Section of the cast stone wall system courtesy of Strada Architecture

Building Facade:

Evansdale Crossings roofing assembly consists of a number of different materials that would found on a typical commercial building. The roofing consists of a roofing membrane, gypsum sheathing panel, 2 layers of Polyiso Insulation Panel (Minimum R-20), metal roof deck, and spray fireproofing (Images 9 &10).

Image 9 - Roof Section of the building courtesy of Strada Architecture

Image 10 - Roof Section of the building courtesy of Strada Architecture

Sustainability Features

This project had no minimum LEED certification required

 

There are however sustainability features in the building such as light-emitting diode (LED) lamps for certain light features. Also the lighting fixtures have low voltage switch controls. HVAC motors that are being used in the building are the "premium efficiency type." For the bathroom fixtures, there are uses of the low GPM and GPF, sensor operated faucets, and sensor operated flush valves.

Primary Engineering Systems

Construction:

The construction team for Evansdale Crossings involves the same construction manager and general contractor March-Westin Company, Inc. Construction of the building began in April of 2014, and should be complete by November of 2015. One of the big obstacles that project was the building is located around a campus access road, as well as, constructing the pedestrian walk bridge leading to the Engineering PRT Building. Due the owner being a developer, the cost of the building could not be expensive, and there was no bid process. The delivery method was Integrated Project Delivery (IPD), which is similar to Design-Build. The overall project cost was around $12 Million for the core and shell of the building.

Structure:

Foundation System:  Evansdale Crossings foundation consists of a grid of drilled piers connected by concrete grade beam that go around the entire perimeter of the building. The reinforced piers were recommended due the below level surface of claystone, shale, and sandstone bedrock. The Geotechnical Report also recommended a minimum depth of 10 feet and 30 inch diameter for the piers. Also each pier was recommended to have 3000 psi in minimum design compression strength, 30 ksf of end bearing capacity, and 1.9 ksf of allowable skin friction/uplift capacity of 1.9 ksf. For the concrete grade beams were recommended to have an allowable bearin capacity of 1500 psf.

 

Gravity System:  The gravity system is a composite steel system with wide flange steel members. There are 2 different configurations of the composite design throughout the entire building. For the typical layout of the deck, it is perpendicular to the infill beams, and parallel to the girder. Typical bays are 30' x 35', with a 3.5" lightweight concrete slab on 2" 20 gauge steel deck giving the floor system a total thickness of 5.5". The concrete slab is reinforced with 6x6-W2.9xW2.1 welded wire fabric. These typical bays go from the 2nd floor to the 5th floor. The other composite deck configuration is located in the loading dock at the back of the building. This floor system has a 6" normalweight concrete slab on 2" 20 gauge composite steel deck giving it a thickness of 8". The reinforcement of the slab is #5 bars @ 6" at the bottom and #5 bars @ 8" at the top for the parallel to deck span, and for the perpendicular to deck span there are #5 bars @ 8" on the top and bottom. The columns for the building are splice between the 3rd and 4th floors, and they are W12 sections mostly. There are a few Hallow Strutural Steel sections (HSS) at certain parts of the building.

 

Lateral System:  For the building lateral system consists of a combination of eccentrically braced frames, single diagonal braced frames, cross braced frames, and moment frames. The angled steel members are mainly hallow structural steel sections, except for the single diagonals where wide flange sections were used. There are total of 6 braced frames located throughout the entire building. The different placements are taking into account the awkward shape of the building, and how it will react under lateral forces. Cross braced frames primarily exist on the pedestrian walk bridge.

 

Special Features:  One of special features to the building is the roof terrace located on the 5th floor. It consists of a Promenade paver system, which has the concrete floor sitting on a pedestal system. Another feature is a canopy roof connected to the 5th floor roof, that is supported by 6" standard pipe poles. The pedestrian walk bridge connected to the building with the floor system like the loading dock.

 

Seismic Considerations:  Since Evansdale Crossings is a Seismic Design Category B, which is not the worst category possible, the steel systems were not specifically detailed for seismic resistance. The two refereced material for seismic considerations were the 2009 IBC and ASCE 7-10.

Image 11 - Building Structure courtesy of WVU Connector, LLC.

Mechanical:

Evansdale Crossings consists of a number of different mechanical  systems that are located throughout the building. The primary systems are Parallel Fan Powered Variable Air Volume (VAV) Boxes with Electric Heat, regular VAV Boxes with Electric Reheat, and Electric Unit Heaters. Some secondary systems consist of fans, rooftop units, diffusers & registers, diffusers & runout, gravity relief ventilators, split system A/C units, and HVAC louvers. All of the systems CFM values vary by where they are located, and overall system. One big thing for energy conservation, was that the motors of the HVAC systems be installed with "Premium Efficency" types. The following images are of the primary mechical values and the information associated with each.

Image 12 - Parallel Fan Powered VAV Box with Electric Heat Schudule courtesy of  Allen & Shariff

Image 13 - VAV Box with Electric Heat Schudule courtesy of  Allen & Shariff

Image 14 - Electrical Unit Heater Schudule courtesy of  Allen & Shariff

Electrical:

Evansdale Crossings has 2 different types of switchboards that control the electrical system of the building. There are both 480/277 Wye & 120/208 Wye 3-phase and single-phase with 4 wires panelboards. The building has a total of 44 panels, however 14 of the panels are spares. Each panelboard has an A.I.C. Rating, Main Type, Bus Rating, & MCB Rating depending on what it is supplying power to in the building. For the Amps Interrupting Capacity Ratings (AIC) range from 10 KAIC to 65 KAIC. The Main Type for the panelboards are primarily Main Lug Only (MLO), along with a few Master Control Board (MCB). Bus Ratings for the panelboards range from 100 Amps to 800 Amps. For the panelboards with Master Control Boards have ratings of 300 Amps to 400 Amps. 

Lighting:

The lighting system for Evansdale Crossings is a combination of flourescent, exterior wall, troffer, recessed, strip cove light, & exit light fixtures. For the fixtures, the fluorescent lamps shall have a CRI minimum of 82 and color temperature of 3500K, the ballasts shall be electronic programmable rapid start type with a total harmonic distortion less thant or equal to 10% and a high power factor ballast greater than or equal to 90%, ballasts shall be Class P with Sound Rating "A", and LED lighting fixtures shall have a color temperature of 3500K. The exterior light fixtures (including those in the 5th floor skybridge) shall be timed on/off with photocell override. All the lighting fixtures will have a voltage of 277V. In addition to the light fixtures, ELEC-Low Voltage Switch were added for better energy efficiency of the building.

Image 15 - Lighting Schudule courtesy of  Allen & Shariff

Engineering Support Systems

Plumbing:

The building's plumbing system takes water and energy conservation into account by utilizing common systems. For the plumbing fixtures, battery powered/sensor operated faucets, battery powered/sensor operated flush values are used in the restrooms. These fixtures also have a low gallons per flush (GPM) sinks, and low gallons per flush (GPF) urnals and water closets. Also these fixtures are compliant to Americans with Disabilites Act standards in terms of accessibility. There are also water heaters located in the building that include an electric water heater, and an expansion tank. Other plumbing fixtures for the building include elevator sump pumps, drain & hose bibbs, epoxy coated backflow preventers, mixing values, and cleanouts.

Fire Protection:

Evansdale Crossings fire protection design is based on NFPA 13, Life Safety Code 101 in accordance with Code & West Virginia State Fire Marshal. The fire protection sprinkler system is hydraulically design with standard-pressure piping system and 175 pounds per square inch gauge working pressure. For the underground service entrance piping is ductile iron, mechanical joint pipe and fittings, and restrained joints with corrosion protective encasement. One of the inside building piping is 2 inch & smaller with threaded-end, schedule 40 steel pipe, cast or malleable iron threaded fittings, and threaded joints. The other inside building piping is 2.5 inch & larger with grooved-end, schedule 10 steel pipe, grooved end fittings, grooved end pipe couplings, and grooved joints.

 

The buildings floor system is fire-rated by accordance with the Vulcraft Metal Decking Catalog fire-rating table, that is for 2 hours. 

Building Transportation:

Evansdale Crossings' feature called "The Circulator" is where all of the stairwells and elevators are located. It is also where pedestrian walk bridge is connected to the Engineering PRT Building. In this particular building section, there is the one main stairwell, along with 3 elevators & freight elevator that go from the 1st floor to the 5th floor. There is also stairwell at each end of the buildingFor public restrooms, each floor has a total of 2 for men and women. Overall the building has a spacious layout, providing room for the permanent occupants of the building.

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