Evaluation of Inelastic Behavior of Semi-rigid Steel Frames under Seismic Loading

地震荷载下半刚性钢框架的非弹性行为评估

• 批准号: 08455245
• 负责人: TAKANASHI Koichi
• 金额: $ 1.54万
• 依托单位: Chiba University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 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-08455245/
• 关键词: steel structure; semi-rigid connection; seismic performance; plastic deformation; fracture; energy absorbency; repeated load testing; frame combination; 鋼構造; 半剛接合; 繰り返し載荷実験; 架構の組合わせ

When the semi-rigid steel frame with braces is subjected to seismic loading, the frame members, especially the connections are usually subjected to the combined stress caused by bending moments and axial forces. These bending moments and axial forces vary with action of the dynamic loading during response vibration to earthquake ground motion.The inelastic behavior of semi-rigid steel frames with braces under seismic loading was evaluated in this study. In the experimental investigation, the emphasis was put on the semi-rigid connections composed of tee or angle cleats at I-shaped beam end, which was subjected to both a bending moment and an axial force. A loading test system is developed for virtually realizing the varying combined stress state of semi-rigid connection as a member of frames. A hybrid element of a connection model, by which the nonlinear behavior of semi-rigid frames can be simulated, were suggested, referring to the experimental results in the numerical analysis. Finally, inelastic behavior of semi-rigid frames with braces under seismic loading was investigated.

带支撑的半刚性连接钢框架在地震作用下，构件尤其是连接处往往承受弯矩和轴力的联合作用。在地震作用下，这些弯矩和轴力随动荷载的作用而变化，本文研究了带支撑半刚性钢框架在地震作用下的弹塑性性能。在试验研究中，重点放在半刚性连接的T形或角夹板在工字形梁端，这是共同承担弯矩和轴力。为虚拟实现半刚性连接作为框架构件的组合受力状态变化，研制了一套加载试验系统。结合数值分析中的试验结果，提出了一种可以模拟半刚性框架非线性性能的连接模型杂交单元。最后，研究了带支撑半刚性框架在地震作用下的弹塑性性能。

项目成果

森田 耕次: "コンクリート充填円形鋼管柱-鉄骨梁フランジ接合部の局部引張耐力に関する研究" 日本建築学会構造系論文集. No.504. 107-112 (1998)

森田浩二：《圆钢管混凝土柱-钢梁翼缘节点局部抗拉强度的研究》日本建筑学会结构工程学报第504. 107-112号（1998）。

高梨晃一: "Sesmic diagnosis for rehabilitation and upgrading of steel gymnasiums1" Engineering Structures. Vol.20,4-6. 533-539 (1998)

Koichi Takanashi：“钢结构体育馆修复和升级的地震诊断”《工程结构》第 20,4-6 卷（1998 年）。

高梨晃一: "Non-linear analysis on the seismic behavior of frames with semi-rigid connections" Proc.of 5th.Int.Colloquium on Stability and Ductility of Steel Structure. Vol.2. (1997)

Koichi Takanashi：“半刚性连接框架抗震性能的非线性分析”Proc.of 5th.Int.Colloquium on Stability and Ductility of Steel Structure Vol.2 (1997)。

森田耕次: "ノースリッジ地震による4階建鉄骨造建物の被害調査と検討(その1,その2)" 日本建築学会大会学術講演梗概集. Vol.B-II. 835-838 (1996)

Koji Morita：“北岭地震造成的 4 层钢框架建筑的损坏调查和研究（第 1 部分和第 2 部分）”日本建筑学会会议学术讲座摘要第 835-838 卷（1996 年）。

高橋 徹: "積雪荷重の推移過程モデルに関する一考察" 構造工学論文集. Vol.44B. 107-112 (1998)

Toru Takahashi：“雪荷载转变过程模型的研究”《结构工程杂志》第 44B 卷（1998 年）。