DECMS
  1. ✓Find scope
  2. 2Governing rule
  3. 3Resolve conflicts
  4. 4Verify equipment

Step 2: Read the governing requirement. On the feature page, start with the Most Restrictive Requirement, then review applicable standards and the lead authority.

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FOW-STR-045Critical

Blast Resistant Structure – Building 100

Blast Resistant Structure – Building 100: design, construction and commissioning within a defense energetics production facility.

Most Restrictive Requirement
UFC 3-340-02

UFC 3-340-02 governs over Eurocode EN 1991-1-7 for accidental explosion loads.

Design Criteria

Hazard Division
1.1
UFC 3-340-02 Table 3-1
Max Net Explosive Weight
50 lb NEW
UFC 3-340-02 Para. 4.2
Inhabited Building Distance
400 ft
UFC 3-340-02 Table 8-9
Hazardous Area Classification
Class I Div 1 / Zone 1
UFC 3-340-02 Art. 500/505
Required SIL
SIL 1
UFC 3-340-02 IEC 61511 §9
Sprinkler / Deluge Density
0.20 gpm/ft²

Illustrative values — confirm against the cited edition before design use.

Summary

Discipline
Structural
Category
Structural
Risk Level
Critical
Approval Authority
Army Explosives Safety Office
Standards Applied
4 across 3 families
Verified Links
1 of 4 approved
Common Equipment
Blast Resistant Door, Overhead Crane

Applicable Standards (4)

Structural
Explosives Safety

Governing Authorities

  • Army Explosives Safety Office
    Explosives Safety Authority · Site plans, QD arcs, explosives safety submissions
    Lead
  • USACE
    Construction Agent / Design Review · Design criteria compliance, DD1391, construction QA

Highest Risk Items

  • Blast door failureHigh
    Engineering controls, third-party verification and AHJ acceptance testing.

Known U.S. / European Conflicts (2)

UFC 3-340-02↔EN 1991-1-7· Accidental explosion loadsSignificant Difference
Fundamental differences; requires AHJ/NRTL review and likely redesign or re-certification.
UFC 3-310-04↔EN 1998· Seismic designPartial
Partial alignment; supplemental U.S. testing or documentation required.

Equipment Impacted (2)