| 预应力砼受扭构件的抗裂度及强度计算 |
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| 引用本文： | 蒋季丰,康谷贻,董明,王士琴,张大煦. 预应力砼受扭构件的抗裂度及强度计算[J]. 建筑结构学报, 1988, 9(2): 55-63 |
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| 作者姓名： | 蒋季丰 康谷贻 董明 王士琴 张大煦 |
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| 作者单位： | 陕西省建筑科学研究所,天津大学,陕西省建筑科学研究所,天津大学,天津市建筑科技设计研究院 |
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| 摘 要： | 本文根据砼的双轴强度特性,导出了预应力受扭构件抗裂度提高系数的表达式。按照变角空间桁架理论,分析了预应力对构件抗扭强度的影响。并提出了预虚力砼受扭构件的抗裂度及强度计算公式,公式合理地考虑了预应力的提高作用,概念明确,计算简便。
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| 收稿时间： | 1988-04-05 |
| 修稿时间： | 1988-04-05 |
Calculation of Cracking Resistance and Strength of Prestressed Concrete Members Subjected to Torsion |
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| Jiang Jifeng,Kang Guyi,Dong Ming,Wang Shiqin,Zhang Daxu. Calculation of Cracking Resistance and Strength of Prestressed Concrete Members Subjected to Torsion[J]. Journal of Building Structures, 1988, 9(2): 55-63 |
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| Authors: | Jiang Jifeng Kang Guyi Dong Ming Wang Shiqin Zhang Daxu |
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| Abstract: | The expression of coefficient of increase in cracking resistance in prestressed torsional members is derived on the basis of concrete characteristics under biaxial strength. According to the theory of space truss with variable angle, the effect of prestreesing on torsional strength of members is analyzed. Formulas for calculating cracking resistance and strength of prestressed concrete torsional members are presented, in which the effect of increase by prestress-ing are reasonably taken into consideration, The suggested formulas have a clear concept and are easy to apply. |
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