| 预应力混凝土拉-弯-剪复合受力构件斜截面抗裂性的试验研究 |
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| 引用本文： | 卢文良,张开敬.预应力混凝土拉-弯-剪复合受力构件斜截面抗裂性的试验研究[J].北京交通大学学报(自然科学版),2000,24(1). |
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| 作者姓名： | 卢文良 张开敬 |
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| 作者单位： | 北方交通大学土木建筑工程学院!北京100044(卢文良)，西南交通大学结构工程研究所!四川成都610031(张开敬) |
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| 摘 要： | 在六片预应力混凝土拉—弯—剪复合受力构件(偏拉构件)试验的基础上,分析了偏拉构件的斜截面抗裂性能.经分析,可用1/2剪跨截面重心轴处的主拉应力预测偏拉构件的斜截面开裂.试验表明,偏拉构件腹剪斜裂缝初始宽度较大,本文分析了初始裂宽较大的原因,并提出了相应的预防对策.还讨论了箍筋的受力行为.
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| 关 键 词： | 预应力混凝土 拉—弯—剪构件 斜裂缝 |
Experimental Study on Diagonal Cracking of Prestressed Concrete Tension-Bending-Shear Members |
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| LU Wen liang ,ZHANG Kai jing.Experimental Study on Diagonal Cracking of Prestressed Concrete Tension-Bending-Shear Members[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2000,24(1). |
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| Authors: | LU Wen liang ZHANG Kai jing |
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| Institution: | LU Wen liang 1,ZHANG Kai jing 2 |
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| Abstract: | Based on 6 prestressed concrete tension bending shear members' test, the cracking behavior of diagonal section were analyzed in this paper. By studying the test results, it is found that the cracking shear of eccentric tensioned members can be predicted by Main Tension Stress at centroid axis of the middle shearspan section. Tests showed also the initial width of shear cracks was considerable. In this paper the affecting factors of initial cracking width were studied and effective prevention measures were proposed. The behavior of stirrup was discussed as well. |
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| Keywords: | prestressed concrete tension bending shear members inclined crack |
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