Study on Low Cycle Fatigue Failure in Civil Engineering Structural Members

土木工程结构构件低周疲劳破坏研究

• 批准号: 08650544
• 负责人: TATEISHI Kazuo
• 金额: $ 1.41万
• 依托单位: University of Tokyo (1997)Tokyo Institute of Technology (1996)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08650544/
• 关键词: Low cycle fatigue; Strain range; Strain rate; Local buckling; Brittle fracture; 屈部座屈; ぜい性破壊

In order to obtain the fundamental information on the low cycle fatigue failure of structural members in civil engineering structures, strain behaviors such as strain range, the number of strain cycles and strain rate developed in the steel members were investigated.1) Strain behaviors in steel bridge piersThe strain behaviors at the buckling portion in steel bridge piers under earthquake loading were investigated analytically. As the results of this study, the magnitude of strain and the time history of strain during earthquake were obtained. Besides, the effects of constitutive law of steel on the strain behavior were analyzed.2) Strain behaviors in CFT (Concrete Filled Tube) membersThe strain behaviors in steel plate of CFT members were investigated both analytically and experimentally. The quantitative information on the strain field around the buckling portion was obtained.3) Strain behaviors in reinforced steel bar in RC membersThe strain behaviors in reinforced steel bar in RC members were investigated analytically. The possibility of low cycle fatigue failure was discussed based on the analysis results.

为了获得土木工程结构中构件低周疲劳破坏的基本信息，研究了钢构件的应变行为，如应变范围、应变循环次数和应变速率。1）钢桥墩的应变行为分析了钢桥墩在地震荷载作用下屈曲部位的应变行为。作为本研究的结果，得到了地震时的应变大小和应变时程。分析了钢管混凝土（Concrete Filled Tube，简称CFT）构件中钢板的应变行为，并对钢管混凝土构件中钢板的应变行为进行了理论分析和试验研究。3）钢筋混凝土构件中钢筋的应变行为对钢筋混凝土构件中钢筋的应变行为进行了分析研究。根据分析结果，讨论了低周疲劳失效的可能性。

项目成果

舘石和雄 他3名: "軸力と曲げを受けるコンクリート充填鋼管柱の耐荷機構に関する研究" 土木学会第52回年次学術講演会概要集共通セッション. 140-141 (1997)

Kazuo Tateishi等3人：“轴力和弯曲作用下钢管混凝土柱的承载机理研究”第52届日本土木工程学会年会普通会议140-141（1997）。

荒井智代・舘石和雄: "鋼材の構成則が鋼製橋脚の地震時挙動に与える影響について" 土木学会第52回年次学術講演会概要集共通セッション. 44-45 (1997)

Tomoyo Arai 和 Kazuo Tateishi：“论钢的本构定律对钢桥墩抗震性能的影响”第 52 届日本土木工程学会学术年会普通会议 44-45（1997）。

舘石和雄 他3名: "鉄筋コンクリート柱における鉄筋の地震時ひずみ履歴に関する研究" コンクリート工学年次論文報告集. 20・3. 277-282 (1998)

Kazuo Tateishi等3人：“钢筋混凝土柱中钢筋的地震应变历史研究”混凝土工程年报20・3（1998）。

舘石和雄・荒井智代: "鋼製橋脚の直下型地震時ひずみ挙動" 第46回応用力学連合講演会. 265-266 (1997)

Kazuo Tateishi 和 Tomoyo Arai：“直接地震期间钢桥墩的应变行为”第 46 届应用力学联盟会议 265-266 (1997)。

Arai, T.and Tateishi, K.: "The Effects of Constitutive Low of Steel on Seismic Behaviors of Steel Piers" Proc.of the 52th Annual Conference of JSCE. (1997)

Arai, T. 和 Tateishi, K.：“钢的本构低对钢桥墩抗震性能的影响”日本土木工程学会第 52 届年会论文集。