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HISTORY BACKGROUND DOCUMENT IP 4-3-4

Special Category 3 Blast Resistant Buildings Page 1 of 1

Rev. 2 June 1999

THIS

INFORMATION FOR

AUTHORIZED

COMPANY

USE

ONLY

EXXON RESEARCH AND ENGINEERING COMPANY FLORHAM PARK, N.J.

INTERNATIONAL

PRACTICE

BACKGROUND HISTORY DOCUMENTATION

FOR CORRESPONDING PARAGRAPHS OF IP 4-3-4 (REV. 2)

S,I [H] 4.4 Proper load combinations are required to ensure safe performance under blast loading. Combination c. isprovided to withstand rebound.

S,I [H] 4.5 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expected

performance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 5.3 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expectedperformance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 5.8 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expectedperformance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 5.9 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expectedperformance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 5.13 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expectedperformance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 6.5 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expectedperformance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 6.9 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expectedperformance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 6.14 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expectedperformance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 6.18 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expectedperformance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 7.4 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expectedperformance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 8.2 The equivalent static blast loads provided in this IP were calculated considering the dynamic response of acomponent based on the pressure loads and ductility limits from IP 4-3-2. To achieve expectedperformance, the component geometry, loading and allowable stress specified must be used in design.

S,I [H] 8.3 Due to the variability of soil properties and the significant magnitude of blast loads, foundation capacityshould be based on site specific information.

S [H] 9.1 Doors can become projectiles at low overpressure blast loads. These requirements are the minimumstandards to reduce the risk to occupants. The limitation on recess prevents the possibility of additionalpressure reflection from increasing the loading on the door.

S [H] 9.2 Glass is a non-ductile material that has limited blast capacity. After breaking, the glass (shards, pellets orfilmed pane) can pose a significant risk to personnel. These requirements represent minimum standardsto reduce this risk.

S [H] 9.3 Interior glass may be loaded with the blast pressure if the structure is breached. These requirements aremeant to provide a minimum protection for the occupants from any interior glass.

S [H] 9.5 Significant damage to the structure can occur without proper consideration of the dynamic effects of theblast on roof mounted equipment and the resulting loads on the roof. To prevent this situation, equipmentis to be located at grade and secured against becoming a projectile.

Notes:

(1) Each paragraph to identify the Purpose Code(s) of the corresponding paragraph number of the applicable International Practice (IP).

(2) The symbol [H]is used to denote all History Background Paragraphs which are for INFORMATION ONLY.

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