[1]符冠华,杨毅文,耿小平,等.双预应力混凝土梁桥的研究[J].东南大学学报(自然科学版),2001,31(3):128-134.[doi:10.3969/j.issn.1001-0505.2001.03.030]
 Fu Guanhua,Yang Yiwen,Geng Xiaoping,et al.Research on Bi-Prestressing System of Simply Supported Concrete Girder Bridge[J].Journal of Southeast University (Natural Science Edition),2001,31(3):128-134.[doi:10.3969/j.issn.1001-0505.2001.03.030]
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双预应力混凝土梁桥的研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
31
期数:
2001年第3期
页码:
128-134
栏目:
交通运输工程
出版日期:
2001-05-20

文章信息/Info

Title:
Research on Bi-Prestressing System of Simply Supported Concrete Girder Bridge
作者:
符冠华 杨毅文 耿小平 朱晓宁
江苏省交通科学研究院, 南京 210017
Author(s):
Fu Guanhua Yang Yiwen Geng Xiaoping Zhu Xiaoning
Jiangsu Transportation Research Institute, Nanjing 210017, China)
关键词:
双预应力 混凝土 梁桥 锚固 波纹管
Keywords:
bi-prestress concrete girder bridge rooted corrugated pipe
分类号:
U448.35
DOI:
10.3969/j.issn.1001-0505.2001.03.030
摘要:
双预应力梁桥的研究就是试图通过双预应力体系降低梁高,从而达到节省造价,美化景观等目的.本文通过大量的试验及研究分析,提出了双预应力梁跨中上缘获得预拉应力的新的传力锚固体系; 通过对室内双预应力混凝土小梁的研究,检测了预压钢筋的受力性能和预压过程中的某些影响参数; 提出了足尺梁计算方法和截面、跨径选择方法; 研制了新型哑铃型波纹管,很好地解决了预压钢筋变形、摩阻损失和管道压浆之间的矛盾; 通过对30 m足尺梁的设计、施工、试验及观测,进一步完善了对施工工艺的研究,并对所取得的成果进行了验证.
Abstract:
The objective of the research is to reduce the beam’s depth by bi-prestress in order to save money and beautify landscape. A new anchorage system for girder to obtain pretension stress at section top-edge in middle of span is shown. Based on the research of bi-prestressing beams inside test-room and the test of the prestress bar character, method for calculating the full size gird and choosing section(or span) are proposed. A new-style corrugated pipe which is shown in the paper is used, to solve the transformation of compressed thread bar and the contradiction between loss of friction resistance and pumping in pipe. The results of research are validated by the design, construction, test and observation of 30 meters full size gird, and the construction method are improved.

参考文献/References:

[1] Hans Reiffenstuhl,Josef Aichhorn.上奥地利境内的阿尔姆桥.国外桥梁,1982,30(1):1~8
[2] 田岛武,近藤顺,横田勉.双预应力体系预应力混凝土梁的实用试验与试设计.桥梁与基础,1984,18(2):16~21
[3] 交通部公路规划设计院.JTJ023—85公路钢筋混凝土及预应力混凝土桥涵设计规范.北京:人民交通出版社,1985
[4] 交通部公路规划设计院.JTJ021—89公路桥涵设计通用规范.北京:人民交通出版社,1990
[5] 交通部第一公路工程局.JTJ041—89公路桥涵施工技术规范.北京:人民交通出版社,1989

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备注/Memo

备注/Memo:
作者简介:符冠华,1963年生,硕士研究生,高级工程师.
更新日期/Last Update: 2001-05-20