| 体外预应力加固钢梁桥的设计计算 |
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| 引用本文： | 孙云,邓勇刚.体外预应力加固钢梁桥的设计计算[J].扬州大学学报(自然科学版),2005,8(4):61-64. |
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| 作者姓名： | 孙云 邓勇刚 |
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| 作者单位： | 1. 扬州大学,建筑科学与工程学院,江苏,扬州,225009
2. 扬州市众恒房地产开发有限公司,江苏,扬州,225001 |
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| 摘 要： | 对体外预应力加固简支钢梁桥时体外预应力筋的线形布置、预应力损失以及内力增量的计算进行了分析，提出了体外预应力加固简支钢梁的设计计算方法，并采用该方法对一模型梁进行了加固设计计算，且与模型梁的实测值进行了比较，结果符合较好，表明该方法可行，并具有较高的准确性．
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| 关 键 词： | 体外预应力 加固 钢梁桥 设计计算 |
| 文章编号： | 1007-824X（2005）04-0061-04 |
| 收稿时间： | 2004-10-27 |
| 修稿时间： | 2004-10-27 |
The design of steel girder bridges strengthened with external prestressing |
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| SUN Yun,DENG Yong-gang.The design of steel girder bridges strengthened with external prestressing[J].Journal of Yangzhou University(Natural Science Edition),2005,8(4):61-64. |
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| Authors: | SUN Yun DENG Yong-gang |
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| Abstract: | The design of simply supported steel girder bridges strengthened with external prestressing is analyzed. It includes the layouts of external prestressing tendons, the calculation of prestressing loss and increment of internal force. The design method of strengthening is presented. A model beam is also calculated and analyzed with this method. By the comparison with the measured value, it shows that the method is feasible and has preferable veracity. |
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| Keywords: | external prestressing strengthening steel girder bridges design |
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