| 考虑预应力损失的超静定结构次弯矩精确计算法 |
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| 引用本文： | 熊学玉,郭子顺. 考虑预应力损失的超静定结构次弯矩精确计算法[J]. 合肥工业大学学报(自然科学版), 1993, 0(2) |
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| 作者姓名： | 熊学玉 郭子顺 |
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| 摘 要： | 在预应力混凝土结构中,由子孔道磨擦及锚具回缩等损失致使预应力沿预应力筋产生显著的变化。本文提出采用约束次弯矩法精确计算考虑各种预应力损失后的超静定结构的次弯矩,本文方法与等效荷载法不同,它是直接由杆件单元的主弯矩计算次弯矩的方法,本文方法的计算结果为精确解,文未附有工程应用实例。
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| 关 键 词： | 预应力混凝土 预应力损失 次弯矩 精确计算 |
A ACCUURATE METHOD OF CALCULATING THE SECOND MOMENTS WHILE CONSIDERING THE PRESTRESSING LOSSES IN STATICALLY INTERMINATE PRESTRESSED CONCRETE STRUCTURES |
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| Xiong xueyu Guo Zishxun. A ACCUURATE METHOD OF CALCULATING THE SECOND MOMENTS WHILE CONSIDERING THE PRESTRESSING LOSSES IN STATICALLY INTERMINATE PRESTRESSED CONCRETE STRUCTURES[J]. Journal of Hefei University of Technology(Natural Science), 1993, 0(2) |
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| Authors: | Xiong xueyu Guo Zishxun |
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| Affiliation: | Xiong xueyu Guo Zishxun |
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| Abstract: | The prestressing force is varying obviously along the tendous due to prostressing losses through friction in duots and slip in anchorages in prostressed concrete struo-tures. A method of restraining secondary moments which can be used for calculating the secondary moments while considering the prostressing losses in statically indeterminate prostressed concrete structure, was presented in the paper. The presented method is dif - ferent from the equivalent load method, since the secondary moments can be calculated directly from the primary moments of the elements. The conclusions of the method are accurate and there are design examples at the end of the paper. |
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| Keywords: | prestressed ooncrete prestressing loss secondary moment accuratelly calculate |
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