The elasto-plastic behaviors of joint panels at the connection of rectangular steel column and two H-shaped beams with different depth

矩形钢柱与不同深度H型梁连接处节点板的弹塑性行为

• 批准号: 09450210
• 负责人: INOUE Kazuo
• 金额: $ 4.22万
• 依托单位: KYOTO UNIVERSITY (1998)Osaka University (1997)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09450210/
• 关键词: joint panel; rectangular hollow section; beams with different depth; diaphragm; width-thickness ratio; axial force ratio

In this paper, the elasto-plastic behavior of joint panels at the connection of rectangular steel column and two H-shaped beams with different depth are reported. Panel moment, equilibrium equation, elastic stiffness and shear strength of these panels are derived theoretically. And the tests of the joint panels are carried out. The specimens are cruciform subassemblages of the joint panels at the connection of rectangular steel column and two H-shaped beams with different depth. The parameters of these tests are difference of beam depth, axial force ratio and width-thickness ratio. The result are as follows.(1) The formulas of panel moment, equilibrium equation and elastic stiffness are almost the same ones of the standard panel at the connection of column and two beams with same depth.(2) The shear strength of those panel is derived theoretically, using plastic analysis. In this analysis, two collapse mechanism are considered. One is the mechanism in which panel is plastic, the other is the mechanism in which parts of panel, beam flange and beam web are plastic.(3) The shear strength and collapse mechanism derived theoretically were good agreement with results of test.

在本文中，据报道，关节面板在矩形钢柱和两个具有不同深度的H形梁连接处的弹性行为。这些面板的面板矩，平衡方程，弹性刚度和剪切强度是理论上得出的。并进行了关节面板的测试。在矩形钢柱和两个具有不同深度的H形梁的连接处，标本是关节面板的十字形亚组合。这些测试的参数是光束深度，轴向力比和宽度厚度比的差异。结果如下。（1）面板矩，平衡方程和弹性刚度的公式几乎是标准面板的连接处的标准面板和两个梁具有相同深度的相同。（2）这些面板的剪切强度使用塑料分析从理论上得出。在此分析中，考虑了两种崩溃机制。一种是面板是塑料的机制，另一个是面板，梁法兰和束片的部分是塑料的机制。（3）理论上得出的剪切强度和塌陷机制与测试结果是很好的一致性。