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Part 1

General Building Data

 

Building Name – 277 Woodland Drive (fictional name)

Location and Site – Northeast, United States

Building Occupant Name – Delaware North Companies (DNC), KeyBank, The Cullen Foundation, U.S. Department of Homeland Security, Westin Hotel, Osteopathic Wellness Medicine

Building Occupant Type (type of building) – Mixed Use (Office/Hotel/Retail/Parking)

Size (total square feet) – 330,000 GSF

Number of stories above grade / total levels – 12 stories above grade / parking garage underneath (5 level, 593 cars)

Primary Project Team

Dates of construction – This information is not available at this time.

Actual cost information – Value $110 M

Project Delivery Method – This information is not available at this time.

Architecture

 

A mixed use building can present challenges when designing. A variety of different wants and needs require satisfaction due to the variety of cliental. Also, building in the North East part of the country implements design considerations very specific to the climate. The exterior facade of 277 Woodland Drive is comprised of glass. This allows for a maximum amount of daylight to enter the spaces creating a welcoming feel.

As previously stated, the building is a mixed use facility. Housed inside will be multiple office spaces, as well as retail stores, and space for a state of the art hotel. Pictured below it can be seen that the building also contains an exterior garden, allowing guests to escape from the inside business world into a much more relaxed environment.

With an exterior made up of glass, an interesting challenge is presented in the form of conditioning the space due to the low insulation quality that glass presents, compared to many other insulating materials. As conversations continue I hope to meet with the architect to truly understand the idea that was in place while in the design process so that I can maintain the value
once we have the opportunity to make changes to the facility.

Building Enclosure

 

As a building material, many do not think of glass as the main source of coverage for a building. Though aesthetically pleasing, a very large building system challenge is presented through this design. When dealing with a building in the northeast part of the country, the weather can be very stubborn. From the cold winters to the hot summers, any type of building requires a heavy duty mechanical system to allow for building wide comfort. When choosing glass as the main obstacle between the inside world and the outside world, the system is required to be even more robust than many others. This increases initial cost, and operational costs and needs to be a large consideration.

Once plans are obtained, the building enclosure body will be detailed with figures and data that will allow us to understand how efficient the enclosure is and what we can do to make it better.

Sustainability

 

277 Woodland Drive exhibits a large variety of sustainable features including the implementation of the previously mentioned garden space. This space serves as the separation from the city that the tenants should truly explore.

The exterior facade, comprising of glass makes for the experience that clients enjoy while inside the building. You are never truly separated from the world while in the building, but get to enjoy all of the benefits including the natural lighting.

With 15 different design features this building is listed as LEED Silver, an accomplishment that should be commended.

Part 2

Construction

 

At a fee of around $110 M, 250 Woodland Ave is a noticeable project within the city. That being said, constructing within the city blocks pose many challenges before construction even begins. An existing 2-story building made way for the much larger, mixed use building. An average of 230 construction workers were on site daily. This was comprised of about 60 carpenters, 15 plumbers, 30 electricians, 23 concrete workers, 3 equipment operators, 31 glaziers, 4 sprinkler fitters, 10 roofers, 25 masons, 3 elevator technicians, 7 pipe fitters, 10 fire proofers, 8 tile installers, and lastly 4 painters. 

Electrical/Lighting

 

 

The building is serviced by two incoming lines, both rated at 23KV. The main distribution come from lines that combine with incoming service to distribute throughout the entirety of the main facility, from the Main Electric Room located on the lower level. Distribution lines then lead vertically to an electrical room located on each floor. 

 

Due to the leasing process, many spaces are not designed until rented out by occupants. Due to this, none of the lgihting design has been completed in the spaces. 

Mechanical

 

277 Woodland Drive is considered a mixed-use building, totaling in about 330,000 square feet. The building is located in the Northeast part of the United States. On the air-side, conditioning needs of the building are met by five separate Trane Air Handling Units (AHUs). Four of the five AHUs are located in the penthouse on the rooftop of the building, and serve floors two through thirteen (office, and hotel) and have a total airflow rate of 15,000 CFM for the office spaces and 6,000 CFM for the hotel spaces. These units are also all Dedicated Outdoor Air Systems (DOAS), and utilize Energy Recovery Ventilation (ERV). The fifth AHU is located on the interior of the first floor, and serves the first floor as well, and has a total airflow of 18,600 CFM. This AHU is an indoor VAV AHU, and does not utilize ERV. Serving the heating side, besides the AHUs are multiple hot water unit heaters, electric heaters, and fin tube radiation.

Due to the unoccupied spaces, the systems seem completely oversized, but through calculation it can be seen that the spaces will require such a sizeable amount of equipment to accurately handle all scenarios. On the water-side there are 2 Trane Water cooled chillers, each sized at 500 tons. A single EVAPCO Induced Draft, Counter-Flow Cooling Tower is utilized, sized at 1,000 tons. Four Fulton Boilers, each at 1,760 MBH with a 5:1 turndown capability are utilized as well. Due to the size of the building, a more specific space may be analyzed at a later date, but as of now these are all considerations that must be made.

Structural

 

With over 3100 tons of structural steel utilized on this project, and 2,700 glass panels comprising the majority of the exterior wall this project served as a structural feat of some sort. Typical curtain wall construction was utilized for the exterior structure, where curtain wall is in place. The overall structure is comprised of a steel framing system in place from floor to floor, with steel beams and flanges. The lower level is comprised of 12" structural slab on grade reinforced with #6 rebar at 12" each way. The first floor is comprised of 4" topping slab reinforced with 6x6-W2.9xW2.9. Typical hotel girders are beams are W24x55, while girders are W24x76. Typical Office beams are W24x55, while girders are W27x114. There is a large range of columns used for the strucutre, depending on the level.

Codes and Standards

 

  • 2010 Building Code of the state

  • 2010 Mechanical Code of the state

  • 2010 Plumbing Code of the state

  • 2010 Energy Conservation Code of the state

  • 2010 Fire Code of the state

  • 2010 Fuel Gas Code of the state

  • National Fire Protection Association (NFPA)

  • Occupational Safety and Health Association (OSHA)

 

*To maintain the sensitivity of the project, the state of which the code is listed for has been left out of code description. 

 

  • American Society of Heating, Regrigetation and Air Conditioning Engineers (ASHRAE) handbooks

  • Sheet Metal and Air Conditioning Contractors National Association (SMACNA)

  • American Society of Mechnaical Engineers (ASME)

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