| 超静定结构的综合内力预应力度设计法 |
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| 引用本文： | 方德平,林雨生.超静定结构的综合内力预应力度设计法[J].华侨大学学报(自然科学版),2006,27(1):102-104. |
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| 作者姓名： | 方德平 林雨生 |
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| 作者单位： | 华侨大学土木工程学院,福建,泉州,362021 |
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| 摘 要： | 提出超静定预应力结构的综合内力预应力度概念,即预应力筋的等效荷载产生的预压应力与外荷载产生的拉应力的比值.将预应力梁当作压弯构件,提出相应于该预应力度的截面设计方法,从而避开主、次内力的计算.
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| 关 键 词： | 预应力 超静定 综合内力 主内力 次内力 |
| 文章编号： | 1000-5013（2006）01-0102-03 |
| 收稿时间： | 2005-08-17 |
| 修稿时间： | 2005-08-17 |
A Method Based on Prestress Degree of Resultant Internal Forces for Designing Statically Indeterminate Structure |
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| Fang Deping,Lin Yusheng.A Method Based on Prestress Degree of Resultant Internal Forces for Designing Statically Indeterminate Structure[J].Journal of Huaqiao University(Natural Science),2006,27(1):102-104. |
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| Authors: | Fang Deping Lin Yusheng |
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| Institution: | College of Civil Engineering, Huaqiao University, 362021, Quanzhou, China |
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| Abstract: | For the use of designing statically indeterminate prestressed structure,the authors presented a method based on the concept of prestress degree of resultant internal forces,that is,the ratio of the compressive stress caused by equivalent loads of prestressed tendon to the tensile stress caused by the external loads. Regarding the prestressed beam as a bar subjected to the bending moment and axial force,a method of section design corresponding to this prestress degree is then presented.So the calculation of both primary and secondary internal forces can be avoided.This design method excels at concept conciseness and calculation simplicity. |
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| Keywords: | prestress statically indeterminate structure resultant internal forces primary internal forces secondary internal forces |
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