| 型钢混凝土推出试验及其粘结强度研究 |
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| 引用本文： | 薛建阳,杨勇,赵鸿铁.型钢混凝土推出试验及其粘结强度研究[J].钢结构,2006,21(6):28-32. |
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| 作者姓名： | 薛建阳 杨勇 赵鸿铁 |
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| 作者单位： | 西安建筑科技大学,土木工程学院,西安,710055 |
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| 基金项目： | 国家自然科学基金
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陕西省教育厅资助项目 |
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| 摘 要： | 根据16个型钢混凝土推出试件的试验结果,对推出试件的荷载滑移曲线进行了分析,得到了初始滑移粘结强度、极限粘结强度和水平残余粘结强度这三个特征强度的试验统计结果,并据此分析了混凝土强度、型钢的混凝土保护层厚度、横向配箍率和型钢埋置长度4个因素与特征粘结强度之间的关系,提出了临界保护层厚度的概念,通过统计回归建立了考虑多因素的型钢混凝土粘结强度计算公式。
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| 关 键 词： | 型钢混凝土 推出试验 滑移 粘结强度 临界保护层厚度 |
| 收稿时间： | 2006-08-25 |
| 修稿时间： | 2006年8月25日 |
PUSH-OUT TEST AND BOND STRENGTHS IN STEEL REINFORCED CONCRETE STRUCTURE |
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| Xue Jianyang,Yang Yong,Zhao Hongtie.PUSH-OUT TEST AND BOND STRENGTHS IN STEEL REINFORCED CONCRETE STRUCTURE[J].Steel Construction,2006,21(6):28-32. |
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| Authors: | Xue Jianyang Yang Yong Zhao Hongtie |
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| Abstract: | According to thepush-out test results of 16 steelreinforced concrete specimens, the properties of loadslippage curve are analyzed. Such characteristic strengths as the initial slippage bond strength, ultimate bond strength and horizontal residual bond strength are obtained statistically. And the relationships between the characteristic strengths and strength of concrete, transverse stirrup ratio, embedded length of shaped steel and thickness of concrete cover are proposed. The concept of critical concrete cover is also put forward. By means of statistical regression method, the formulae for calculating bond strengths of steel reinforced concrete members are established by taking multiple influencing factors into consideration. |
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| Keywords: | steel reinforced concrete push-out test slippage bond strength thickness of critical concrete cover |
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