Rationalization of reinforcing arrangement design based on stress transfer mechanism of RC footing beams with single layer reinforcement for residential houses

基于单层钢筋混凝土基础梁应力传递机制的合理配筋设计

• 批准号: 22560558
• 负责人: KOBAYASHI Katsumi
• 金额: $ 2.83万
• 依托单位: University of Fukui
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22560558/
• 关键词: 住宅用基礎; シングル配筋; 応力伝達機構; 配筋設計; 建築構造・材料

The stress transfer mechanism of footing beams with single layer reinforcement for residential houses was investigated and a reinforcing arrangement method was proposed to prevent the bond splitting failure on the top side and to increase the deformation capacity. It was verified by the experiments. For the notched part of the footing beam for the maintenance opening, an analytical model was proposed to calculate the amount of reinforcement around the opening. The reinforcing arrangement method around the web-opening of normal RC beams is supposed to be applicable to that of the beams with single layer reinforcement. The footing beam of residential house does not continue around the entrance. Pre-assembled reinforcement unit was confirmed to be well usable to the substitute beam. The result of this research work will hopefully contribute to the upgrade of seismic safety design of residential house that is a basic unit of the social infrastructure.

研究了住宅单层配筋基础梁的应力传递机理，提出了防止上部粘结开裂破坏和提高变形能力的配筋布置方法。实验证明了这一点。针对维修洞口基础梁的缺口部分，提出了计算洞口周边配筋量的解析模型。普通钢筋混凝土梁腹板开口周围的配筋方法适用于单层配筋梁的配筋方法。住宅的立脚梁不沿入口延伸。验证了预装配筋单元对替代梁的适用性。本文的研究成果将有助于作为社会基础设施基本单元的住宅抗震安全设计的提升。

项目成果

RC 造大開孔梁のせん断終局耐力に対する開孔周囲補強筋の役割について

孔口周边钢筋对钢筋混凝土大开孔梁极限抗剪强度的影响

• 发表时间: 2012
• 期刊: 日本建築学会大会学術講演梗概集
• 作者: 山崎公子;小泉明;閔丙大;大塚宏幸;秋田知芳,五百井壮,江田拓也,栗本耕太郎,和泉信之;小林克巳
• 通讯作者: 小林克巳

RC造大開孔梁のせん断終局耐力に対する開孔周囲補強筋の役割について

洞口周边钢筋对钢筋混凝土大开孔梁极限抗剪强度的影响

• 发表时间: 2012
• 期刊: 日本建築学会大会学術講演梗概集
• 作者: B.D.Min;K.Yamazaki;A.Koizumi;J.Y.Koo;齊藤修;秋田知芳,五百井壮,江田拓也,栗本耕太郎,和泉信之;Noriatsu Ozaki et al.;小林克巳
• 通讯作者: 小林克巳