Technical_Exhibit__2.pdf

TECHNICAL EXHIBIT 2

CONTAINER STANDOFF AND SEPARATION DISTANCES

(From B-1 of UFC 4-010-01)

B-1.1 Standard 1. Standoff Distances.

The standoff distances apply to all new and existing (when triggered) DoD buildings required to comply with these standards. They address standoff distances to controlled perimeters, parking areas, roadways, and trash containers. The standoff distances are presented in Tables B-1 and B- 2 and illustrated in Figures B-1 and B-2 for new buildings and Figures B-3 and B-4 for existing buildings.

B-1.1.14 Location of Trash Containers.

For buildings that are required to comply with these standards, provide standoff distances from the nearest points of trash containers or trash container enclosures to the closest points on the building exteriors or inhabited portions of the buildings or to specific building components in accordance with the conventional construction standoff distance from trash containers in Tables B-1 and B-2. Where the applicable conventional construction standoff distance is not available, analyze the building and apply building hardening as necessary to mitigate the effects of the explosives indicated for trash containers in Table B-1 at the achievable standoff distance to the appropriate level of protection.

Alternatively, harden trash enclosures to mitigate the direct blast effects and secondary fragment effects of the explosive on the building if the applicable level of protection can be proven by analysis or testing.

As an additional alternative, if trash containers or enclosures are secured to preclude introduction of objects 6-inches (150 mm) or greater in height or width into them by unauthorized personnel, they may be located closer to the building as long as they do not violate the unobstructed space provisions of Standard 2. Openings in screening materials and gaps between the ground and screens or walls making up an enclosure must not be greater than 6 inches (150 mm).

B-1.2.3 Equipment and Trash Container Enclosures.

If walls or other screening devices with more than two sides are placed around trash containers that have been secured, hardened, or located in accordance with the paragraph above, entitled, “Location of Trash Containers” or around electrical, mechanical, or other equipment within the unobstructed space, enclose the trash containers or equipment on all four sides and the top.

Openings in screening materials and gaps between the ground and screens or walls making up an enclosure will not be greater than 6 inches (150 mm). Secure any surfaces of the enclosures that can be opened so that unauthorized personnel cannot gain access through them. Where opaque top enclosures are provided, they will have a pitch of at least 1 vertical to 2 horizontal to increase visibility of objects thrown onto them and to increase the likelihood that the objects will slide off. Alternatively, if the vertical surfaces of the enclosures are transparent and at least 7 feet (2.1 meters) high, a top enclosure is not required.

EXAMPLE OF STANDOFF DISTANCES FOR NEW AND EXISTING BUILDINGS

(Excerpted From Table B-1 of UFC 4-010-01)

Distance to: Building Category

Standoff Distances

Applicable Level of

Protection

Conventional Construction

Standoff Distance Minimum Standoff Distance

(2)

Applicable Explosive Weight (3) Load

Bearing Walls (1)

Non- Load

Bearing Walls (1)

Refuse/Recycling Containers

Billeting and High

Occupancy Family

Housing

Low E G 13 ft.

(4 m) II

Primary Gathering Building

Low E G 13 ft.

(4 m) II

Inhabited Building Very Low F H

13 ft.

\1\ (4 m)

/1/

II

1. See Table B-2 below for standoff distances.

2. For new construction, standoff distances less than those in this column are not allowed for new buildings regardless of analysis or hardening. For existing buildings that are constructed / retrofitted to provide the required level of protection, standoffs less than those in this column are allowed, but discouraged.

3. See UFC 4-010-02, for the specific explosive weights (pounds / kg of TNT) associated with explosive weights I and II. UFC 4-010-02 is For Official Use Only (FOUO).

EXAMPLE OF STANDOFF DISTANCES – With Controlled Perimeter (Example From Figure of UFC 4-010-01)

EXAMPLE OF CONVENTIONAL CONSTRUCTION AND STANDOFF DISTANCES

(From Table B-2 of UFC 4-010-01)

CONTAINER STANDOFF AND SEPARATION DISTANCES

(From D-2 of UFC 4-010-01)

D-2.1.2.2 Fabric Covered and other Expeditionary Structures.

Measure the standoff distance from the closest point on the structure exterior to the closest edge of parking areas and roadways. The minimum standoff for all expeditionary structures regardless of hardening or analysis is 33 feet (10 meters).

D-2.1.3 Trash Containers.

Measure the standoff distance from the nearest point of the trash container or trash container enclosure to the closest point on the structure exterior. Where the applicable standoff distances in Table D-1are not available, hardening of trash enclosures to mitigate the direct blast effects and secondary fragment effects of the explosives on the structure is acceptable, if the applicable level of protection can be proven by analysis or testing. If trash enclosures are secured to preclude introduction of objects into the enclosures by unauthorized personnel, they may be located closer to the structures as long as they do not violate the unobstructed space provisions of Standard 3 below. Openings in screening materials and gaps between the ground and s

EXAMPLE OF STANDOFF AND SEPARATION DISTANCES FOR EXPEDITIONARY

STRUCTURES

(Excerpted From Table D-1 of UFC 4-010-01)

Location

Standoff or Separation Distance

Structure Applicable Level of Protection

Fabric Covered Structures(1)

Trailers and Other Expeditionary Structures(1)(2)

Applicable Explosive Weight

(TNT)

Trash Containers

Billeting Low 46 ft.

(14m)

105 ft.

(32m)

II

Primary Gathering Structure

Low 46 ft.

(14m)

105 ft.

(32m)

II

Inhabited Structure

Very Low 33 ft.

(10 m)

75 ft.

(23 m)

II

1. See Definitions for a complete description of these structure types.

2. For container structures, see Excerpt B-1 above.

EXAMPLE OF STANDOFF AND SEPARATION DISTANCE

(From Figure D-1 of UFC 4-010-01)