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Experience

PNH engagements described by type of work only. Client names, locations and project details stay confidential under our agreements.

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Recent PNH Engagements

ENERGY AND UTILITY FACILITIES

Pre-bid blast and impact design

Load assessment, preliminary design, element schedules, interface loads and budgetary quantities that contractors priced their tenders from, including reissues within days after late design-basis changes.

ENERGY AND UTILITY FACILITIES

Protective systems specifications

Performance specifications for blast-rated louvers, doors, catch nets and blast-control fences, with indicative layouts for vendor procurement.

DEFENSE FACILITIES

Antiterrorism fenestration

Blast-resistant windows and glazed doors with framing, anchorage and the submittal set, supported through government review.

MISSION-CRITICAL FACILITIES

Perimeter and hardened rooms

Vehicle mitigation, access control layout and protective design of critical rooms for operators with no tolerance for downtime.

Recent work, by type
Recent PNH work by type, drawn as line illustrations: pre-bid blast and impact design, protective systems specifications, antiterrorism fenestration, and perimeter and hardened rooms Four line illustrations: a reinforced wall section with an element schedule, a blast-rated louver and door, a blast-resistant window section, and a site plan with a barrier line and hardened room. Pre-bid blast and impact design Energy and utility Protective systems specifications Energy and utility Antiterrorism fenestration Defense Perimeter and hardened rooms Mission-critical Line illustrations of the type of work only. Not project drawings.
Line illustrations of the four types of recent PNH work; not project drawings.

Experience by Sector

SectorSelected work
GovernmentFacade and curtain wall blast design and peer review for government facilities; threat, vulnerability and vehicle ramming assessments for federal sites.
DefenseAntiterrorism design basis and blast design for military installations; hardened and below-grade facilities.
TransportationDisproportionate collapse, extreme-load criteria and vehicle ramming analysis for airport and transit facilities.
VenuesThreat, vulnerability and vehicle ramming assessments for stadiums and public venues.
EnergeticsConfined-blast loads, response and retrofit for test cells and process bays; HD 1.3 thermal analysis.
ContainmentDesign and test program for an above-ground structure that contains energetic equipment failures.
ResearchPrincipal investigator on federally funded SBIR research on soft-target risk; federally funded research on extreme-load response and shock isolation.
ForensicFailure investigations of bridges, transit stations, and industrial and grain facilities; vehicle-impact and perimeter-breach matters.

Experience of PNH's technical lead, including work at prior firms before PNH was formed in 2025. Work performed at prior firms belongs to those firms and is not PNH past performance.

How a crash test result is measured
Full-scale vehicle barrier crash test in plan: the test truck has pushed through the barrier line and come to rest on the protected side; penetration is measured from the barrier attack face to the front of the cargo bed. FULL-SCALE CRASH TEST, IN PLAN (NOTIONAL) Medium-duty test truck, 6,800 kg, impact at 50, 65 or 80 km/h (M30, M40, M50) ATTACK SIDE PROTECTED SIDE Attack face of the barrier, pre-test position P1 ≤1 m P2 1 to 7 m P3 7 to 30 m to 30 m Speed trap Approach run-up, perpendicular to the barrier line Foundation strip (below grade) Front of cargo bed at final rest P = 3.0 m, rated P2 Struck bollards pushed over toward the protected side, under the truck (dashed) High-speed camera Penetration P is measured from the barrier's pre-test attack face to the front of the cargo bed at final rest (ASTM F2656/F2656M-23). Ratings: P1 up to 1 m, P2 1 to 7 m, P3 7 to 30 m. Example values; not a record of any test.
In a full-scale test, the rating depends on how far the front of the cargo bed travels past the barrier attack face.
10service lines
17+years of protective design
100%satisfaction guarantee on agreed scope
0client names disclosed

Get in Touch

Send us the site and the deadline. A short note on the site, what concerns you and when the tender or decision is due is enough to start. We reply within one business day.

  • The siteAn address, a site plan or a few photos.
  • The concernThe threat question, an incident or a client requirement.
  • The criteriaAny standard or client specification that applies.
  • The dateWhen the tender, review or decision is due.

Email [email protected] or call +1-818-253-9557

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