Strength of a Frame using New Type of Beam-to-Column Connection for CFT

使用 CFT 新型梁柱连接的框架强度

• 批准号: 08650677
• 负责人: MITANI Isao
• 金额: $ 1.28万
• 依托单位: KOBE UNIVERSITY (1997)Kagoshima University (1996)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 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-08650677/
• 关键词: CFT-Column; Diaphragm; Composite beam; Ultimate strength; Effective width of RC slab; 3-D frame; 接合部; 部分架構; 鉛直荷重; 水平力

3-D frames with a rectangular steel tube columns and four composite beams are tested, and effective width of the RC stab are discussed based on the experimental data.Beams of the specimen, which are connected H-shaped steel beam and RC slab by using stud bolt, are welded to the column tube without diaphragm, and the direction of the beam coincides with the diagonal direction of the rectangular tube section.Test parameters are1) column type : concrete filled tube and vacant tube2) loading pattern : gravity load and horizontal loadIt is recognized that frames with this type of connection can be designed to collapse under beam-yield type. And flowing results about effective width of the slab are obtained.1) For ultimate strength of the composite beamFull width of the RC slab are effective for frames with a CFT column under the gravity load.For the frame subjected to horizontal load, effective width of the slab is smaller than that of the frame under gravity load, This is resulted from beams of frame under horizontal load are subjected to totional moment.2) For elastic rigidityEffective width of the slab of the beam subjected to hogging bending (slab side tension due to bending) is smaller than that under sagging bending (slab side compression due to bending).

对矩形钢管柱和四根组合梁的三维框架进行了试验，并根据试验数据讨论了钢筋混凝土短柱的有效宽度，将H型钢梁和RC板用螺栓连接起来，将试件的梁焊接到没有横隔板的柱管上，梁的方向与矩形管截面的对角方向一致。试验参数为1)柱型：钢管混凝土和空心管2)加载方式：重力荷载和水平荷载。对于水平荷载作用下的框架，楼板的有效宽度小于框架在自重荷载作用下的有效宽度，这是由于框架梁在水平荷载作用下受到力矩作用的结果。2)对于弹性刚度，拱形弯曲(弯曲引起的板侧拉)作用下梁的有效板宽度小于下垂弯曲(弯曲引起的板侧压缩)作用下的有效板宽度。

项目成果

KURAHASI,takahiro: "Strength of a Frame using New Type of Beam-to-Column Connection for CFT (No.1 behavior of a frame under gravity load)" Report of Kyushu-branch of architectural institute of japan. Vol.36. 569-572 (1997)

KURAHASI,takahiro：“使用新型梁柱连接的 CFT 框架强度（重力荷载下框架的第一行为）”日本建筑学会九州分会的报告。

倉橋孝裕: "コンクリート充填鋼管の特性を生かした柱・梁接合形式を用いた骨組の耐力(その1 長期応力作用時の挙動)" 日本建築学会九州支部研究報告. 36. 569-572 (1997)

Takahiro Kurahashi：“利用钢管混凝土的特性的柱梁连接方法的框架的屈服强度（第1部分：长期应力下的行为）”日本建筑学会九州分院研究报告36。 569-572（1997）

倉橋孝裕: "コンクリート充填角形鋼管の特性を生かした柱・梁接合部形式を用いた骨組の耐力(その1)" 日本建築学会九州支部研究報告構造系. 36. (印刷中) (1997)

Takahiro Kurahashi：“利用方钢管混凝土的特性的柱梁接头框架的抗力强度（第1部分）”日本建筑学会九州分院结构系统研究报告36。（出版中）（1997年）。 ）