This standard specifies the classification, overall dimensions and allowable deviations, technical requirements, inspection methods and markings, packaging, transportation, and quality certificates of highway corrugated beam steel guardrail products. This standard applies to corrugated beam steel guardrails for expressways and first-class automobile highways. Corrugated beam steel guardrails for other grades of highways can be used as a reference.
JT/T 281-1995 history
2007JT/T 281-2007 Corrugated sheet steel beams for guardrail
1996JT/T 281-1995 Corrugated sheet steel beams for expressway guardrail