Being additional strength design support manner of the steel-frame beam perforation hole which

摘要

PROBLEM TO BE SOLVED: To properly and quickly obtain an installable range of a through-hole and ring-shaped hardware for reinforcing the through-hole.;SOLUTION: A through-hole design support system 1 of a steel beam is used in reinforcing a through-hole formed in the web of a steel beam by using ring-shaped hardware, and includes: an input part 2 for inputting the type of a steel beam, span length, and long-term loading conditions as an input value; an arithmetic part 3 for calculating a stress generated in a steel beam to the input value in a status which is before the through-hole is formed as an estimated stress, for comparing the estimated stress with a proof stress being in a status in which the ring-shaped hardware is reinforced to the through-hole after the through-hole is formed, and for calculating a region where the estimated stress does not exceed the proof stress; and an output part 4 for outputting the region where the estimated stress does not exceed the proof stress and the specifications of the ring-shaped hardware corresponding to the diameter of the through-hole as the possible range for the formation of the through-hole.;COPYRIGHT: (C)2010,JPO&INPIT