ULTIMATE FLEXURAL STRENGTH OF WELDED STEEL BEAM-TO-COLUMN CONNECTIONS PREDICATED ON MECHANICAL PROPERTIES OF STEEL AND WELDED MATERIAL

根据钢和焊接材料的机械性能预测焊接钢梁柱连接的极限抗弯强度

• 批准号: 13650628
• 负责人: SUITA Keiichiro
• 金额: $ 2.24万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650628/
• 关键词: STEEL STRUCTURE; BEAM-TO-COLUMN CONNECTION; ULTIMATE FLEXURAL STRENGTH; DYNAMIC LOADING TEST; WELDING; LOADING HISTORY; 載荷履歴

This research reveals the results of experimental studies concerning the moment carrying capacity of steel wide flange beams subjected to cyclic bending. Wide flange beam specimens were dynamically loaded in various loading sequences under the condition that local and lateral bucklings and connection fractures were effectively prevented. The major findings obtained from these tests are as follows: 1) the bending moment carried by beams increases during the initial three cycles under constant displacement amplitude, and subsequently reaches the upper limit. 2) the possible maximum moment capacities are obtained for both short and normal beams related to the maximum deformation amplitude of the beam member, and 3) flexural strength demands for beam-to-column connections for the ultimate seismic design of steel moment resisting frames can be evaluated taking into account deformation amplitude and the number of excursions during the earthquake response.

本研究揭示了钢宽法兰梁在循环弯曲作用下承载弯矩的试验研究结果。在有效防止局部和侧向屈曲和连接断裂的条件下，对宽翼缘梁试件进行了不同加载顺序的动态加载。试验结果表明：1)在恒位移幅值条件下，梁的弯矩在前三次循环中逐渐增大，随后达到上限；2)与梁构件最大变形幅值相关的短梁和普通梁可能的最大弯矩承载力；3)考虑地震反应过程中的变形幅值和位移次数，可以评估钢抗弯矩框架抗震极限设计中梁柱连接的抗弯强度要求。

项目成果

吹田啓一郎: "繰返し曲げを受ける梁の最大応力と梁端接合部耐力の要求値"日本建築学会近畿支部研究報告集. 第42号(投稿準備中). (2002)

Keiichiro Suita：“反复弯曲梁的最大应力和梁端接头强度的要求值”日本建筑学会近畿分会研究报告第42号（准备提交）。

吹田啓一郎: "終局強度型耐震設計における梁端接合部の曲げ耐力要求値"日本建築学会近畿支部研究報告集. 第42号. 205-208 (2002)

吹田敬一郎：《极限强度抗震设计中梁端节点的弯曲强度要求》日本建筑学会近畿分会研究报告第42号205-208号（2002年）

吹田啓一郎: "終局強度型耐震設計における梁端接合部の曲げ耐力要求値"日本建築学会大会学術講演梗概集(北陸). C-1構造III. 679-680 (2002)

Keiichiro Suita：“极限强度抗震设计中梁端接头的所需弯曲强度”日本建筑学会会议学术讲座摘要（Hokuriku）679-680（2002）。

吹田啓一郎: "鋼構造ラーメン骨組の耐震設計における梁端接合部の耐力要求値"日本建築学会構造系論文集. 567号(掲載決定). (2003)

Keiichiro Suita：“钢刚性框架抗震设计中梁端接头的要求强度”日本建筑学会结构工程学报第567号（决定出版）。

KEIICHIRO SUITA: "Flexural Strength Demand for Beam-to-Column Connections in Earthquake Resistant Design of Steel Moment Frames"Journal of Structural and Construction Engineering, AIJ. No.567. (2003)

KEIICHIRO SUITA：“钢框架抗震设计中梁柱连接的弯曲强度需求”结构与建筑工程学报，AIJ。