Steel beam penetration hole reinforcement method High Ring III method [Freedom in equipment planning]
Relax the restrictions on the diameter and position of through holes to increase the flexibility of equipment planning! Standardize high rings and aim for the rationalization of steel frame production.
The conventional method for reinforcing through-holes in steel beams typically involves sleeve reinforcement or plate reinforcement. These reinforcement methods lack established evaluation criteria and conventionally restrict the diameter and position of the through-holes, resulting in limited flexibility in equipment planning. The High Ring III method has established strength evaluation formulas for the through-hole sections, allowing for the relaxation of restrictions on the diameter and position of the through-holes, thereby increasing flexibility in equipment planning. Additionally, by standardizing high rings and streamlining steel fabrication, it achieves cost reduction and shortened construction periods. This method has been validated through full-scale experiments and FEM analysis, and has received certification from the Minister of Land, Infrastructure, Transport and Tourism (Certification Numbers MSTL-0234, 0451, 0477, 0480, 0515) as well as evaluation from the Japan Building Center (BCJ Evaluation ST0095-09).
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