# [1]王新玲,曹双寅.局部张拉预应力筋加固混凝土超静定梁的内力计算[J].东南大学学报(自然科学版),2004,34(1):89-91.[doi:10.3969/j.issn.1001-0505.2004.01.021] 　Wang Xinling,Cao Shuangyin.Inner force on strengthening concrete statically indeterminate beams prestressed with localized tendons[J].Journal of Southeast University (Natural Science Edition),2004,34(1):89-91.[doi:10.3969/j.issn.1001-0505.2004.01.021] 点击复制 局部张拉预应力筋加固混凝土超静定梁的内力计算() 分享到： var jiathis_config = { data_track_clickback: true };

34

2004年第1期

89-91

2004-01-20

## 文章信息/Info

Title:
Inner force on strengthening concrete statically indeterminate beams prestressed with localized tendons

Author(s):
College of Civil Engineering, Southeast University, Nanjing 210096, China

Keywords:

TU378.2
DOI:
10.3969/j.issn.1001-0505.2004.01.021

Abstract:
The use of localized tendons to prestress statically indeterminate beams is examined. The two spans continuous beams should be calculated to determine the prestressing moments produced by localized tendons. Based on the analysis, the moments formulas should be computed, which will lead to strengthening the RC continuous beams of the three spans prestressed with localized tendons. By means of the principle of superposition, total moments can be obtained when many sections should be strengthened. The effects of the continuous beams moments produced location of prestressing are analyzed. The results should be used to design concrete continuous beams of two and three spans prestressed with localized tendons.

## 参考文献/References:

[1] 曹双寅,邱洪兴,王恒华.结构可靠性鉴定及加固技术[M].北京:中国水利水电出版社,2002.16-21.
[2] 李晨光,刘航.体外预应力技术在工程加固改造中的应用[J].施工技术,1999,28(2):30-32.
Li Chenguang,Liu Hang.Application of external prestressing to strengthening and reconstruction projects [J]. Construction Technology, 1999,28(2):30-32.
[3] 刘航,李晨光.体外预应力加固混凝土框架的试验研究[J].建筑技术,1999,30(12):855-857.
Liu Hang,Li Chenguang.Experimental study of strengthening RC frame beams with external prestressing tendons [J].Architecture Technology, 1999,30(12):855-857.
[4] Mattock A H.Continuous prestressed concrete beams:problems and solution[J].PCI J,1997,42(3):50-59.
[5] Picard A,Massicotte B,Bastien J.Relative efficiency of external prestressing [J].J Struct Engrg,1995,121(12):1832-1841.
[6] Picard Andre,Bastien Josee,Massicotte Bruno.Analysis of continuous beams prestressed with localized tendons [J].Journal of Structural Engineering, 2000,126(2):262-265.

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