Seismic design of steel building with H-section columns and energy absorbing elements

H型钢结构柱及吸能构件的抗震设计

基本信息

批准号：
15560485
负责人：
MORITA Koji
金额：
$ 2.3万
依托单位：
Chiba University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560485/
关键词：
H-section column Strong axis column Weak axis column High-strength bolted tensile connection Subassemblage test Energy absorption Seismic design 方杖補強

项目摘要

The purpose of this research is to experimentally investigate structural behavior of a steel framework with H-section columns and semi-rigid beam-end connections. This research will help to promote mechanically and economically rational seisimic design of steel buildings using H-section columns. The conclusions of this research are summarized as follows.1.Structural behaviors of flange-split-T and web-split-T tensile connections are experimentally investigated by tensile loading tests. Observed full plastic strength and ultimate strength of the connections can be estimated well by plastic analysis.2.Structural behavior of a subassemblage with flange-split-T semi-rigid moment connections is experimentally investigated by cyclic loading tests. The tensile connection behavior in the subassemblage specimen is in good agreement with that in the tensile specimens ; this indicates that the structural behavior of steel frameworks with the flange-split-T semi-rigid moment connections can be predicted by using the knowledge about the flange-split-T tensile connections. It is also observed at the subassemblage loading test that flat plates in a panel zone and angle members at the flange attached with high-strength bolts show good out-of-plane reinforcement effect on plate elements in the H-section columns.3.Stmctural behavior of a subassemblage with web-split-T moment connections is experimentally investigated by cyclic loading test. The tensile connection behavior in the subassemblage specimen is in good agreement with that in the tensile specimens; this is the same as the flange-split-T connections.

本研究的目的是通过实验研究具有 H 型钢柱和半刚性梁端连接的钢框架的结构行为。这项研究将有助于促进使用 H 型钢柱的钢结构建筑的机械和经济合理的抗震设计。本研究的主要结论如下： 1.通过拉伸加载试验对翼缘-分体-T型和腹板-分体-T型拉伸连接的结构性能进行了实验研究。通过塑性分析可以很好地估计连接的全塑性强度和极限强度。2.通过循环加载试验对法兰分体T型半刚性弯矩连接组件的结构性能进行了实验研究。组合件试件的拉伸连接行为与拉伸试件的拉伸连接行为非常吻合；这表明，可以利用有关翼缘分裂 T 拉伸连接的知识来预测具有翼缘分裂 T 半刚性弯矩连接的钢框架的结构行为。分装加载试验还发现，面板区平板和翼缘处角构件采用高强螺栓连接，对H型钢柱板单元具有良好的面外加固效果。 3、结构通过循环加载试验对具有腹板分裂 T 弯矩连接的子组合的行为进行了实验研究。组合试件中的拉伸连接行为与拉伸试件中的拉伸连接行为非常一致；这与法兰分体 T 形连接相同。