引張残留応力を与えた冷間成形角形鋼管の亜鉛めっき割れ実験

概要

論文の詳細を見る
Hot-Dip galvanization is used thr steel frame. On the other hand, it is pointed out that the plating crack enters in the corner part when the cold forming corner type steel tube is plated. This study is check on the influence of residual stress in inside corner on cracks at plated parts. Here is experimental result. 1. Cracks at plated parts were generated if residual stress was more than 35N/mm^2. 2. With increasing that residual stress is generated inside corner, developmental rate of cracks at plated parts and length of cracks increase. 3. Cracks at plated parts don't occur even if the steel material has high residual stress except that it touches zinc. 4. It applies no plating process to inside corner. In doing so, we were able to prevent cracks at plated parts.
一般社団法人日本建築学会の論文
2009-03-27