Title:
The structure excellent in fatigue characteristics
Document Type and Number:
Japanese Patent JP5910258
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To control any loss of the compressive residual stress introduced in a weld toe by the peening treatment while using a structure having a weld joint of a steel member.SOLUTION: Impact dents 202a, 202b having the radius R of curvature of ≥1.0 mm and ≤10.0 mm, and having the depth of ≤1.0 mm as the depth in the thickness direction from a surface of a weld toe are formed in the weld toe. For each steel plate constituting an inner bottom plate 102a and a lower stool slant plate 103a, the yield stress in each steel plate is ≥(10/9) times the maximum value of the compressive stress of each hot-spot stress in the weld toes 302a and 302b.
Inventors:
Okawa Teppei
Hiroshi Shimanuki
Hiroshi Shimanuki
Application Number:
JP2012086421A
Publication Date:
April 27, 2016
Filing Date:
April 05, 2012
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
B23K31/00; B63B3/56; B63B3/62; C21D7/06
Domestic Patent References:
| JP2011167693A |
Foreign References:
| WO2011024784A1 |
Attorney, Agent or Firm:
Takayoshi Kokubun
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