Building Statistics l Natalie Bockhorst

Building Statistics: Part One

By: Natalie Bockhorst Option: Construction Management

General Building Information

A.I.T. (Advanced Individual Training) Barracks

Building #2301, Marshall ST Fort Eustis, VA

Barracks

91,800 sf

10/14/2010 - 02/09/2012

$18,618,720

Design Build

Multiple Award Task Order Contract (MATOC)

Building Name:

Location:

Building Occupancy Type:

Gross Building Area:

Number of Stories:

Construction Dates:

Contracted Lump Sum amount:

Project Delivery Method:

Project Team Directory

Owner:

General Contractor:

Design Team (Civil, Mech, & Elec):

Architect:

Structural Engineer:

Geotechnical Engineer:

Life Safety Engineer:

U.S. Army Corps of Engineers www.usace.army.mil

Balfour Beatty Construction www.balfourbeattyus.com

Woolpert www.woolpert.com

Cass, Sowatsky Chapman + Associates www.ccs-architecture.com

Cates Engineering www.cateseng.com

GeoConcepts www.geoconcepts-eng.com

Hankins and Anderson, Inc. www.haengineers.com

Architecture - Design and functional Components

The barracks are three stories with 150 sleeping modules intended to house a total of 300 AIT solders. The overall design approach embodies the intent of the Department of the Army’s AIT Barracks program, and its essential role to promote and maintain the well-being, morale and efficiency of the Army personnel by establishing a higher standard of living and quality of life. The building design provides a variety of materials and finishes that emphasize quality, durability and ease of maintenance. These include precast architectural block wainscot with 100 percent brick veneer/ precast architectural block exterior and standing seam metal roof. The barracks building also has been designed with a residential ambience, utilizing a maximum use of daylighting. Spaces intended for work or private study will have sufficient lighting levels appropriate for reading and distance learning.

Figure 1: Site Plan

Image courtesy of U.S. Army Corps of Engineers

Architecture - Major Code

2009 Unified Facilities Criteria (UFC)

2010 National Fire Protection Association (NFPA)

2009 International Building Code (IBC)

2009 Life Safety Code

Architecture - Zoning

Architecture - Historical Requirements

This building has no Historical Requirements

Building Enclosure

The building is classified as Group R-2 Residential Occupancy with accessory assembly, business, bathroom, mechanical, electrical, janitorial, and storage areas. The building is designed to be constructed with Type IIB non-combustible constriction as defined by the IBC.

Sustainability Features

The Building Enclosure includes precast architectural block wainscot with 100 percent brick veneer/ precast architectural block exterior and standing seam metal roof. The insulation of the building will be a spray foam applied to the exterior. Exterior windows and storefront glazing is present, as see in Figure 2 the rendering below. A Progressive Collapse structural system was used in the building to protect residents from an attack.

The AIT Barracks is to achieve a LEED Silver rating upon completion on the building. A key sustainable feature included in the building is a solar hot water heating system capable of saving approximately 50% of annual energy cost associated with hot water heating.

Figure 2. Rendering of AIT Barracks

Image courtesy of U.S. Army Corps of Engineers

Building Statistics: Part Two

By: Natalie Bockhorst Option: Construction Management

Structural Steel Frame:

The barracks building is 3 stories in height and therefore must be designed in accordance with requirements for progressive collapse avoidance. In general the building shall be designed such that the vertical load carrying elements of the structure are not exposed to the exterior of the building. The structural steel frame is to be pre-fabricated in panels and set in placed. Temporary shoring and bracing is to be used as bracing support. The light gauge subcontractor provided their own crane, a 50 ton crane. No tower crane or a large mobile crane was necessary as nothing hoisted was heavy enough to require it.

Electrical Systems:

The electrical system consists of a main 480/277 volt, 1600 amp service which enters the main electrical room switchboard. The service feeds 277/480 volt lighting and mechanical equipment throughout the building is also transformed to 120/208 volt to feed receptacles and other loads in the building. Emergency batteries in the fluorescent light fixtures and exit signs provide life safety egress lighting. Other systems included in the building are a data/communication and door monitoring system.

Mechanical Systems:

The facility will be ventilated using two dedicated outdoor air units that supply neutral air (approximately 70 degree F) to each occupied space. These units have a total energy recovery wheel to recover energy from the building exhaust air. A 160 ton air cooled chiller and a 30 ton DX condensing unit will provide the cooling for the facility. Two gas fired boilers located in the first floor mechanical room will provide the hot water for building heating. Four pipe fan coil units (hot water and chilled water) located in each occupied space will provide space heating or cooling.

Plumbing Systems

The plumbing systems will consist of sanitary and vent, domestic cold and hot water, and natural gas. The domestic hot water will be a solar heating system being supplemented with gas-fired instantaneous water heaters. The laundry and scrub rooms will have interceptors prior to entering the sanitary system. The domestic water will be routed on the first floor and extend vertically to the second and third floors though chases, where the piping connection between floors will be protected with intumescent fire collars. The natural gas system is only in the first floor mechanical room.

Fire Alarm and Mass Notification System:

A combination Fire Alarm/Mass Notification System will be provided for the building. The system will include manual and automatic detection devices located per code requirements, including automatic spot-type smoke detectors in each sleeping unit. The smoke detector located in the sleeping unit will sound a local alarm only and will send a supervisory signal to the building fire alarm control panel; these detectors will not initiate total building alarm. All initiation devices are designed to be installed on a Class A signaling line circuit. The system includes notification devices located per code requirements. All auditable notification devices will be speakers shared for both fire alarm and mass notification purposes. The Fire Alarm/Mass Notification System will communicate with the Base Wide Mass Notification System via a Monaco BTXM-4 Transceiver.

Sprinkler System:

The building will be protected throughout with a sprinkler system. The attic is considered a noncombustible concealed space and will not be provided with sprinklers. The system pressure will be provided by the local water supply; fire pumps are not required to boost system pressure. The building has one fires department connection located in the exterior wall of the building and within 150’ of a fire hydrant. The sprinkler system water flow and tamper switches will be monitored by the fire alarm system.

Advanced Individual Training

A.I.T. Barracks

Natalie Bockhorst

Construction Management

Fort Eustis, VA

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User Note: While great efforts have been taken to provide accurate and complete information on the pages of CPEP, please be aware that the information contained herewith is considered a work‐in-progress for this thesis project. Modifications and changes related to the original building designs and construction methodologies for this senior thesis project are solely the interpretation of Natalie Bockhorst. Changes and discrepancies in no way imply that the original design contained errors or was flawed. Differing assumptions, code references, requirements, and methodologies have been incorporated into this thesis project; therefore, investigation results may vary from the original design.

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