Study on Shear Resistance Mechanisms of RC Beam-Column Joints and Development of Seismic Design Method
RC梁柱节点抗剪机理研究及抗震设计方法发展
基本信息
- 批准号:60550388
- 负责人:
- 金额:$ 1.47万
- 依托单位:
- 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:
- 关键词:
项目摘要
The aseismatic provision for reinforced concrete beam-column joints has been made recently in ACI Building Code and New Zealand Code. The development of the rational design method for the beam-column joint has become a matter of concern also in Japan. In the ACI and New Zealand codes, the provisions for the development length of beam bars passing through a joint and the limitation to the joint shear stress are very important, but they are not based on the sufficient test data and the rational theory. In this study, the interrelation between the bond situation of beam bars and the joint shear stress level were discussed for the experimental results.Eight half-scale interior beam-column joints were tested. Small-size low-strength bars were used in the improved bond type, and large-size high-strength bars were used in the bond deterioration type. The joint shear stress level was varied in the region of the restricted value in ACT Code.In the first test series with a small amount of lateral shear reinforcement in a joint, the lateral reinforcing bars yielded and the opening of joint shear cracks was remarkable. The joint shear failure occurred after beam yielding. The story shear-story drift hysteresis loop showed the pinching effect independently of the bond situation of beam bars. In the second test series in which a joint was reinforced so that half of the entire shear could be resisted by the lateral reinforcement, the opening of the joint shear cracks was restrained and the joint shear failure was prevented effectively. The hysteresis loop was fat spindle-shaped in the improved bond type, but the bond deterioration type specimens showed a pinching effect.From these experimental results, the effect of the bond situation of beam bars on the shear resistance mechanisms was investigated. Finally the limitation to the joint shear stress and the restriction of beam bar bond index were presented.
ACI建筑规范和新西兰规范最近对钢筋混凝土梁柱节点作出了抗震规定。开发合理的梁柱节点设计方法在日本也是一个值得关注的问题。在ACI和新西兰规范中,对穿过节点的梁筋的发展长度和节点剪应力的限制都有非常重要的规定,但它们都没有充分的试验数据和合理的理论依据。通过对8个半尺度内梁柱节点的试验研究,讨论了梁筋粘结状态与节点剪应力水平之间的相互关系。改进粘结型采用小尺寸低强度钢筋,粘结劣化型采用大尺寸高强钢筋。节点剪应力水平在ACT规范限值范围内变化较大,在节点配筋较少的第一个试验系列中,节点侧向钢筋屈服,节点剪切裂缝张开明显。节点剪切破坏发生在梁屈服后。层剪力-层位移滞回曲线显示出与梁筋粘结状态无关的收缩效应。在第二个试验系列中,对节点进行加固,使其能够被侧向配筋抵抗一半的剪切,从而抑制了节点剪切裂缝的张开,有效地防止了节点的剪切破坏。试验结果表明,改进粘结型试件的滞回曲线呈脂肪纺锤形,而粘结劣化型试件则表现为收缩效应,由此分析了梁筋粘结状态对抗剪机理的影响。最后给出了节点剪应力的限制和梁筋粘结指数的限制。
项目成果
期刊论文数量(6)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Hiroshi Noguchi: Proceedings of Pacific Conference on Earthquake Engineering. (1987)
野口宏:太平洋地震工程会议论文集。
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- 影响因子:0
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- 通讯作者:
野口博: 日本建築学会大会学術講演梗概集. C. 99-100 (1986)
Hiroshi Noguchi:日本建筑学会会议学术讲座摘要 C. 99-100 (1986)。
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- 影响因子:0
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Hiroshi Noguchi: "The Effects of Beam Bar Bond and Joint Shear Stress on Behaviour of Reinforced Concrete Interior Joints" Proceedings of Pacific Conference on Earthquake Engineering. (1987)
Hiroshi Noguchi:“梁杆粘结和接头剪应力对钢筋混凝土内部接头行为的影响”太平洋地震工程会议论文集。
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- 影响因子:0
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Hiroshi Noguchi: "Study on Bond Index of Beam Longitudinal Reinforcing Bars and Shear Input Level into the Joint in RC Beam-Column Joint" Proceedings of Annual Convention, AIJ. c. 99-100 (1986)
Hiroshi Noguchi:“RC 梁柱接头中梁纵向钢筋的粘结指数和接头剪切输入水平的研究”年会论文集,AIJ。
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NOGUCHI Hiroshi其他文献
3D FEM Analysis of RC H Type Shear Walls Subjected to Reversed Cyclic Loads
反向循环荷载作用下 RC H 型剪力墙的 3D FEM 分析
- DOI:
- 发表时间:
2004 - 期刊:
- 影响因子:0
- 作者:
NOGUCHI Hiroshi;HIGASHI Ryotaro;KASHIWAZAKI Takashi et al. - 通讯作者:
KASHIWAZAKI Takashi et al.
FEM Analysis of Structural Performance Deterioration of RC Elements Subjected to Seismic Reversed Cyclic Shear
地震反向循环剪力作用下 RC 构件结构性能恶化的有限元分析
- DOI:
- 发表时间:
2004 - 期刊:
- 影响因子:0
- 作者:
NOGUCHI Hiroshi;KASHIWAZAKI Takashi - 通讯作者:
KASHIWAZAKI Takashi
Seismic Performance Evaluation of RC Eccentric Beam-Column Joints Using Three-Dimensional FEM Analysis
利用三维有限元分析评估 RC 偏心梁柱节点的抗震性能
- DOI:
- 发表时间:
2004 - 期刊:
- 影响因子:0
- 作者:
KASHIWAZAKI Takashi;NOGUCHI Hiroshi - 通讯作者:
NOGUCHI Hiroshi
Three-Dimensional FEM Analysis of RC Beam-Column Joints with the Floor Slab under Cyclic Loadings
循环荷载作用下楼板RC梁柱节点三维有限元分析
- DOI:
- 发表时间:
2004 - 期刊:
- 影响因子:0
- 作者:
NOGUCHI Hiroshi;HORIBE Akihisa;KASHIWAZAKI Takashi et al. - 通讯作者:
KASHIWAZAKI Takashi et al.
Development of Three-Dimensional FEM Program for RC Structural Members under Cyclic Loading
循环荷载下钢筋混凝土结构构件三维有限元程序的开发
- DOI:
- 发表时间:
2004 - 期刊:
- 影响因子:0
- 作者:
NOGUCHI Hiroshi;YU Yong;KASHIWAZAKI Takashi - 通讯作者:
KASHIWAZAKI Takashi
NOGUCHI Hiroshi的其他文献
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{{ truncateString('NOGUCHI Hiroshi', 18)}}的其他基金
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25560280 - 财政年份:2013
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22241054 - 财政年份:2010
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$ 1.47万 - 项目类别:
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Network framework for cooperative control of robots and distributed sensors based on on-site automatic component connection
基于现场自动组件连接的机器人与分布式传感器协同控制网络框架
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22700196 - 财政年份:2010
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Damage Evaluations and Strength Deteriorations of High Strength RC Structures Containing Steel Fiber under Multi-Directional Loading
多向荷载作用下含钢纤维高强RC结构的损伤评价及强度劣化
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21560581 - 财政年份:2009
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$ 1.47万 - 项目类别:
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Structure formation of biomembranes in molecular scale
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21740308 - 财政年份:2009
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$ 1.47万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
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$ 1.47万 - 项目类别:
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17530316 - 财政年份:2005
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Grant-in-Aid for Scientific Research (C)
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17360052 - 财政年份:2005
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Formation of unnatural novel polyketides and isoprenoids from alternate and/or nonphysiological substrate by the engineered plant enzymes
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- 批准号:
15310153 - 财政年份:2003
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Grant-in-Aid for Scientific Research (B)
Quantitative Evaluation of Deterioration on Capacity and Ductility of RC Structural Members under Plastic Region Using Three-Dimensional FEM Analysis
使用三维有限元分析定量评估塑性区域下 RC 结构构件的承载能力和延展性劣化
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14350293 - 财政年份:2002
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$ 1.47万 - 项目类别:
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