Under what circumstances should the anchorage end of I-beam embedded ring of cantilever frame be provided with reinforcement? What are the requirements for stiffeners?

JJ130-201Safety Technical Specification for Fastening Steel Pipe Scaffolding for Building Construction Article 6. 10.8 When the anchorage position is set on the floor, the thickness of the floor should not be less than 120mm. If the floor thickness is less than 120mm, reinforcement measures should be taken. Articles 6. 10.2, 6. 10.3, 6. 10.8 of the Code have corresponding regulations on the anchorage end of embedded anchor ring. Insert two HRB335 steel bars with a diameter of not less than 18mm and a length of not less than 1.5m into the embedded anchor ring and bind them together with the steel bars at the bottom of the plate.