抗震框架中间层中节点梁筋粘结退化试验研究

傅剑平 刘晓 白绍良

doi:10.11835/j.issn.1674-4764.2007.04.010

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抗震框架中间层中节点梁筋粘结退化试验研究

更新时间：2023-11-28

- 抗震框架中间层中节点梁筋粘结退化试验研究
- Experimental Research on Beam Bar Bond Deterioration of the Interior Joint in Earthquake-resistant Frames
- 土木与环境工程学报（中英文） 2007年29卷第4期页码：39-43
- 作者机构：
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- 基金信息：
  
  国家自然科学基金面上项目资助（59878056）
- DOI：10.11835/j.issn.1674-4764.2007.04.010
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- 纸质出版：2007
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傅剑平刘晓白绍良. 抗震框架中间层中节点梁筋粘结退化试验研究[J]. 土木与环境工程学报（中英文）, 2007,29(4):39-43.

Experimental Research on Beam Bar Bond Deterioration of the Interior Joint in Earthquake-resistant Frames[J]. Journal of Civil and Environmental Engineering, 2007, 29(4): 39-43.
傅剑平刘晓白绍良. 抗震框架中间层中节点梁筋粘结退化试验研究[J]. 土木与环境工程学报（中英文）, 2007,29(4):39-43. DOI： 10.11835/j.issn.1674-4764.2007.04.010.

Experimental Research on Beam Bar Bond Deterioration of the Interior Joint in Earthquake-resistant Frames[J]. Journal of Civil and Environmental Engineering, 2007, 29(4): 39-43. DOI： 10.11835/j.issn.1674-4764.2007.04.010.

摘要

根据已经完成的21个接近足尺的钢筋混凝土框架中间层中节点平面梁柱组合体的低周交变加载试验，较全面测试和分析了在轴压比、剪压比、钢筋强度和混凝土强度以及贯穿节点梁筋相对长度的影响下贯穿节点段梁筋的粘结退化规律，通过非线性拟合得到试验加裁制度下贯穿中间层中节点梁筋和混凝土之间粘结应力τ在不同加载阶段的计算公式，提出了受轴压比、剪压比、钢筋强度和混凝土强度等参数影响的贯穿节点梁筋相对长度hc／d的建议公式。

Abstract

Based on the reversed cyclic loading tests of 21 nearly full-size interior joints in completed reinforced concrete frames

the law of bond deterioration of beam bars crossing the joint is tested and analyzed

which is influenced by the axial load ratio

shear-compression ratio

reinforced bar strength

concrete strength and the relative length of beam bars crossing the joint. By the nonlinear fitting method

the formula of the bond stress r between steel crossing interior joints and concrete under different loading step is obtained. According to the loading approach

the propositional formula of the relative length of beam bars crossing the joint hc/d is presented

which is influenced by axial load ratio

shear-compression ratio

reinforced bar strength and concrete strength.

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