Formulation of Load Deflection Relations of Steel Concrete Composite Columns

钢混凝土组合柱荷载挠度关系的公式化

• 批准号: 17560516
• 负责人: TSUDA Keigo
• 金额: $ 2.24万
• 依托单位: The University of Kitakyushu
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560516/
• 关键词: concrete filled steel tube; performance based design; steel concrete composite column; residual deformation; steel reinforced concrete beam

The objective of this study is to formulate the load-displacement relationship which can evaluate the local buckling limit, shrinkage limit in case of CFT columns, crack occurrence limit and initial yield limit in case of SRC columns and beams.As to the concrete filled columns, Tsuda investigated relation between experienced lateral drift angle and residual one of concrete filled steel tubular columns. As the results, 1) residual drift angle becomes large as the axial load ratio of the column becomes large, 2)the effect of width-thickness ratio and diameter-thickness ratio on the residual drift angle is not apparent, comparing with the axial load ratio, 3) in specimens with high axial load ratio, the residual drift angle becomes large after the column attained the shrinkage limit.Moreover, accumulated plastic angles are calculated using previously performed test. As the criterion, shrinkage limit, local bucking limit, strength assurance limit are selected, and effect of width-thickness ratio, diameter-thickness ratio and axial load ratio are examined.Fujinaga and Tsuda investigated the relations between cyclic and monotonic behavior on CFT beam-columns by using the previously performed experiment and numeric analysis. While in the small deflection stage, monotonic behavior correspond to envelop curve of cyclic behavior, in the large deflection stage, monotonic behavior correspond to accumulated curve of cyclic one.As to SRC beam, Sakai and Lee performed experimental test, selecting the encased steel ratio and existence of slab as the test parameters. Sakai examined the load deflection relationship.

本研究的目的是建立荷载-位移关系，该关系可以评估 CFT 柱的局部屈曲极限、收缩极限，SRC 柱和梁的裂缝发生极限和初始屈服极限。津田研究了钢管混凝土柱的横向偏角与残余角之间的关系。结果表明：1）随着柱轴载比的增大，残余偏角也随之增大；2）与轴载比相比，宽厚比和径厚比对残余偏角的影响不明显比，3）在高轴载比的试件中，柱达到收缩极限后残余漂移角变大。此外，累积塑性角是使用先前进行的试验计算的。选择收缩极限、局部屈曲极限、强度保证极限作为判据，并检验宽厚比、直径厚比和轴荷比的影响。Fujinaga和Tsuda研究了CFT梁的循环行为和单调行为之间的关系-使用先前进行的实验和数值分析来生成列。而在小挠度阶段，单调行为对应于循环行为的包络曲线，在大挠度阶段，单调行为对应于循环行为的累积曲线。对于SRC梁，Sakai和Lee进行了实验测试，选择了包钢比以及板坯的存在作为测试参数。酒井研究了载荷挠度关系。

项目成果

コンクリート充填角形鋼管柱の経験部材角と残留変形角の関係

方钢管混凝土柱经验杆件角度与残余变形角关系

• 发表时间: 2005
• 期刊: 鋼構造年次論文報告集 第13巻
• 作者: 城戸將江;津田恵吾
• 通讯作者: 津田恵吾

角形CFT柱の繰返し挙動と単調挙動の比較

矩形 CFT 柱的循环行为和单调行为比较

• 发表时间: 2006
• 期刊: 構造工学論文集 Vol. 52. B
• 作者: 藤永隆;三谷勲;津田恵吾
• 通讯作者: 津田恵吾

Relation Between Experienced Lateral Drift Angle and Residual One of Concrete Filled Steel Square Tubular Columns

钢混凝土方管柱经验侧偏角与剩余角的关系

• 发表时间: 2005
• 期刊: Journal of Constructional Steel Vo.13
• 作者: Masae KIDO;Keigo TSUDA
• 通讯作者: Keigo TSUDA

Comparison of Cyclic and Monotonic Behavior on Square CFT Beam-Columns

方形 CFT 梁柱的循环和单调行为比较

• 发表时间: 2006
• 期刊: Journal of Structural Engineering Vo1.52.B
• 作者: Takashi FUJINAGA;Isao MITANI;Keigo TSUDA
• 通讯作者: Keigo TSUDA

Flexural Strength of Beam Web to Concrete Filled Square Steel Tubular Column Joints

梁腹对方钢管混凝土柱节点的抗弯强度

• 发表时间: 2007
• 期刊: Journal of Structural and Construction Engineering vol.611
• 作者: Masae KIDO;Keigo TSUDA
• 通讯作者: Keigo TSUDA