Effects of Hoop in Steel and R/C Composite

钢和 R/C 复合材料中环箍的影响

• 批准号: 60550390
• 负责人: TAKIGUCHI Katsuki
• 金额: $ 1.41万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60550390/
• 关键词: Steel and R; C Composite; Hoop Reinforcement; Buckling; Concrete under Compression

The main conclusions of this study are as follows; (a) The proposed SRC system, 'steel' - 'concrete' - 'hoop reinforcement' composite has quite good aseismic performance. (b) Flexural cracks concentrated at the critical sections in the proposed SRC members subjected to bending-shear cracks, and flexural-shear cracks were not observed. (c) Hoop reinforcement improved the compressive behaviour of the concrete and protected the steel from local buckling. (d) Hoop reinforcement contributed to the ductility of members under various loading conditions. (e) Deformation of the SRC member under compression is due not only to compressive strain but also to slip along the inclined crack, and affected by the existance of the H-shaped steel itself. The relation between compressive force and deformation of SRC cannot be evaluated as the sum of those of concrete and steel. (f) The maximun moment carried at the critical sections of members under bending-shear were greater than those under bending. Compressive stress - strain relationship of concrete in the members under bending-shear should be affected by the restraint of thr neighbouring solid concrete.

这项研究的主要结论如下。 （a）拟议的SRC系统“钢” - “混凝土” - “箍钢筋”复合材料具有相当不错的无压性能。 （b）弯曲裂纹集中在弯曲剪切裂纹的拟议的SRC成员中的临界切片上，未观察到弯曲剪切裂纹。 （C）箍钢筋改善了混凝土的压缩行为，并保护了钢免受局部屈曲的影响。 （d）在各种装载条件下，箍钢筋有助于成员的延展性。 （e）在压缩下，SRC成员的变形不仅归因于压缩应变，而且还沿倾斜的裂纹滑动，并受H形钢本身的存在。压缩力与SRC变形之间的关系不能评估为混凝土和钢的总和。 （f）在弯曲剪切下的成员关键部分中携带的最大力矩大于弯曲下的最大力矩。弯曲剪切下的混凝土应力 - 应变关系应受到邻近固体混凝土的约束。

项目成果

鈴木敏郎,滝口克己,他: 日本建築学会構造系論文報告集. No.354. 40-51 (1985)

Toshiro Suzuki、Katsumi Takiguchi 等人：日本建筑研究所结构研究论文集，第 354. 40-51 号（1985 年）。

T.SUZUKI, K.TAKIGUCHI, et al: "Development and Design Recommendations for Composite Structure" The First East Asian Conference on Structural Engineering and Construction. 2. 1076-1087 (1986)

T.SUZUKI、K.TAKIGUCHI 等人：“复合结构的开发和设计建议”第一届东亚结构工程与施工会议。

T.SUZUKI , K.TAKIGUCHI , et al: "Experimental Study on the Ultimate Strength of SRC Column-Steel Beam Connections" Transactions of Architectural Institute of Japan. No.354. 40-51 (1985)

T.SUZUKI，K.TAKIGUCHI，等：“SRC柱-钢梁连接极限强度的实验研究”日本建筑学会学报。

鈴木敏郎,滝口克己,他: Proc.The First East Asian Conference on Structural Engineering and Construction. Vol.2. 1076-1087 (1986)

Toshiro Suzuki、Katsumi Takiguchi 等人：第一届东亚结构工程与施工会议，第 2 卷（1986 年）。

鈴木敏郎,滝口克己,他: 第7回日本地震工学シンポジウム講演集. 1387-1392 (1986)

Toshiro Suzuki、Katsumi Takiguchi 等：第七届日本地震工程研讨会论文集 1387-1392（1986）。