林 健治
著者に関連した記事は4件です。
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論文
溶接継手・部材の疲労強度の簡便推定法に関する研究
著者:
林 健治,Kenji HAYASHI
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Evaluation Method Fatigue Strength Stress Intensity Factor Structural Member Welded Joint
林 健治,Kenji HAYASHI
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Evaluation Method Fatigue Strength Stress Intensity Factor Structural Member Welded Joint
In terms of maintenance, repair and reinforcement of existing welded steel structures, it is required to evaluate the fatigue strength of welded joints and structural members with weld defects. Fatigue design guidelines specify that the fatigue strength of welded joints should be confirmed by fatigue tests reflecting the actual situation. However, it is difficult to carry out such fatigue tests in most instances. This paper proposes that the simple method to evaluate the fatigue strength of welded ...
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Study of Numerical Evaluation Method for Fatigue Strength of Welded Joints and Members
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Study of Numerical Evaluation Method for Fatigue Strength of Welded Joints and Members
第5回
鋼トラス橋の補修・補強、予防保全およびリダンダンシーに関する検討
著者:
林 健治,Kenji HAYASHI
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Fracture critical member Preventive Maintenance Redundancy Retrofit Steel Truss Bridge
林 健治,Kenji HAYASHI
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Fracture critical member Preventive Maintenance Redundancy Retrofit Steel Truss Bridge
In this paper, a new retrofit and strengthening method with adjusting axial force of damaged members in steel truss bridges is proposed to prevent the failure of them and collapse of bridges. The validity of this method is verified through taking this working conditions and procedures into con sideration. And also the new measures for preventive maintenance of steel truss bridges are suggested and examined against the effectiveness. In add ition, the redundancy of total structural system is discussed taki...
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A Study on Retrofit and Preventive Maintenance for Steel Truss Bridges and their Redundancy
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A Study on Retrofit and Preventive Maintenance for Steel Truss Bridges and their Redundancy
第2回
鋼橋の補修・補強に対する新たな試み
著者:
林 健治,Kenji HAYASHI
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Composite Structure Fatigue Strength FRP Grid Girder Pavement Retrofit Steel Bridge
林 健治,Kenji HAYASHI
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Composite Structure Fatigue Strength FRP Grid Girder Pavement Retrofit Steel Bridge
Fatigue damages have been increasing in a large number of steel bridges in Japan. In terms of repair/retrofit to fatigue damages of steel bridges, this study proposes three innovative methods for the evaluation of fatigue strength of structural members in steel bridges and the repair/retrofit of fatigue damages in l-girder bridges and steel plate deck bridges. Firstly, the simple calculation method to evaluate fatigue strength of welded joints with defects and fatigue cracks, was proposed based on fracture...
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New Attempts on Repair/Retrofit of Steel Bridges
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New Attempts on Repair/Retrofit of Steel Bridges
第7回
高レベル放射性物質研究施設(CPF)における保全活動への取組み「Ⅰ. 高放射性物質閉じ込め用負圧コントロール弁の経年劣化への対応」
著者:
小林 雄樹,Yuki KOBAYASHI,高橋 哲郎,Teturo TAKAHASHI,篠崎 忠宏,Tadahiro SHINOZAKI,小笠原 甲士,Kouji OGASAWARA,小泉 健治,Kenji KOIZUMI,中島 靖雄,Yasuo NAKAZIMA
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aged deterioration Chemical Processing Facility negative pressure control valve
小林 雄樹,Yuki KOBAYASHI,高橋 哲郎,Teturo TAKAHASHI,篠崎 忠宏,Tadahiro SHINOZAKI,小笠原 甲士,Kouji OGASAWARA,小泉 健治,Kenji KOIZUMI,中島 靖雄,Yasuo NAKAZIMA
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aged deterioration Chemical Processing Facility negative pressure control valve
The negative pressure control valve is reliable apparatus which has been used in many nuclear facilities. In recent years, there are some troubles on those valves in CPF (Chemical Processing Facility) by the aged deterioration because the valves were kept using for more than 25 years after facility had operated. Therefore, we have been c arrying out renewal of driving units of the valves to assure performance of negative pressure control function and to keep stability of operation of the facility. In this...
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Maintenance activities in Chemical Processing Facility 1. Renewal of driving unit of negative pressure control valves
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Maintenance activities in Chemical Processing Facility 1. Renewal of driving unit of negative pressure control valves