Browse Publications Technical Papers 710693
1971-02-01

Development of ROPS Criteria for Construction and Industrial Vehicles 710693

Performance standards for roll-over protective structures (ROPS) have been developed for four classes of equipment-TTT, loaders, motor graders, and wheel scraper prime movers. The criteria were developed by studying the behavior of roll-proven structures in a laboratory and converting these observations into numerical relationships.
The criteria establish five major requirements:
  1. 1.
    Resist horizontal force-related to machine weight.
  2. 2.
    Absorb energy-must deflect without catastrophic failure.
  3. 3.
    Withstand vertical load after deflection equal to machine weight.
  4. 4.
    Meet above requirements without entering critical zone.
  5. 5.
    Must perform at 0 F or material must exhibit Charpy “V” notch impact strength of 8 ft-lb at -20 F.

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