| 摘要 |
PROBLEM TO BE SOLVED: To provide a stress alleviation type reinforcing structure in which a crack is not generated at a penetration opening even if repeatedly applied with a bend load and a twist load which are generated by a wind, an earthquake, traffic vibration or the like, related to a metal pipe columnar support having an opening part.SOLUTION: In a reinforcing structure of a metal pipe columnar support having a columnar support main body 2 which has a penetration opening 2b penetrating a flank wall part 2a and communicating with the inside and the outside of the flank wall part, and is erected on an upper face of a base plate 1 and formed into a tip-narrowed shape, an annular body 3 which is erected while exceeding at least an upper edge part of the penetration opening 2b and surrounds an entire periphery of the flank wall part 2a of the columnar support main body 2 is arranged at the base plate 1. A ceiling plate 4 which has one end integrally connected to an upper end of the annular body 3 and the other end integrally connected to the flank wall part 2a of the columnar support 2, and holds a region M divided by the annular body 3, the flank wall part 2a and the base plate 1 in a closed space, is arranged between the annular body 3 and the flak wall part 2a of the columnar support main body 2. Then, the annular body 3 forms an opening part 5 which is formed so as to face the penetration opening 2b, and can be opened and closed by the attachment/detachment of a lid body 6. |
