| 部分预应力混凝土受弯构件开裂截面应力计算 |
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| 引用本文： | 魏,炜.部分预应力混凝土受弯构件开裂截面应力计算[J].河北科技大学学报,2012,33(6):559-563. |
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| 作者姓名： | 魏 炜 |
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| 作者单位： | 长安大学公路学院,陕西西安,710064 |
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| 摘 要： | 在分析预应力混凝土受弯构件截面应变分布规律的基础上,给出了预应力钢筋与相邻混凝土的应变差(若钢筋与混凝土之间黏结可靠,这一应变差被始终保持不变),据此建立了预应力混凝土受弯构件开裂截面的应力计算公式新的推演过程。其过程具有概念清晰、易于理解的特点,所提出的方法对加筋混凝土偏心受压构件具有普遍适应性。
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| 关 键 词： | 预应力混凝土 开裂截面 B类构件 部分预应力 |
| 收稿时间： | 2012/6/20 0:00:00 |
| 修稿时间： | 2012/11/10 0:00:00 |
Stress calculation of cracking section of partially prestressed concrete bending member |
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| WEI Wei.Stress calculation of cracking section of partially prestressed concrete bending member[J].Journal of Hebei University of Science and Technology,2012,33(6):559-563. |
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| Authors: | WEI Wei |
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| Institution: | WEI Wei(School of Highway,Chang’an University,Xi’an Shaanxi 710064,China) |
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| Abstract: | On the basis of analyzing the stress distribution law of section of P.C.member in bending,the stress difference between prestressed reinforcement and adjacent concrete was given(this strain difference is always kept constant if the bond strength between the steel bar and the concrete is reliable),the new method to compute the stress of the cracking section was established.This method has the characteristics of clear concept,easy understanding and universality for eccentric compression member of concrete reinforced with bars. |
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| Keywords: | prestressed concrete cracking section B-kind member partially prestressed |
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