简支单箱双室梯形结合梁的畸变效应研究

doi:10.3969/j.issn.1674-0696.2014.05.02

重庆交通大学学报（自然科学版） ›› 2014, Vol. 33 ›› Issue (5): 7-12.DOI: 10.3969/j.issn.1674-0696.2014.05.02

简支单箱双室梯形结合梁的畸变效应研究

张彦玲^1,2，侯忠明³，李运生^1,2，刘沛叶^1,2

1.石家庄铁道大学土木学院，河北石家庄 050043; 2. 石家庄铁道大学道路与铁道工程安全保障省部共建教育部重点实验室，河北石家庄 050043; 3. 清华大学土木水利学院，北京 100084

收稿日期:2013-03-28 修回日期:2013-04-19 出版日期:2014-10-15 发布日期:2015-03-10
作者简介:张彦玲(1973—)，女，河北吴桥人，教授，博士，主要从事钢与组合结构桥梁方面的研究。E-mail:06mzhang@163.com。
基金资助:
国家自然科学基金项目(51108281)；河北省自然科学基金项目（E2014201138）；河北省高等学校科学技术研究项目(ZD2014025)

Distortional Effect of Trapezoid Single Box-Double Cells Composite Beams

Zhang Yanling^1,2, Hou Zhongming³, Li Yunsheng^1,2, Liu Peiye^1,2

1. School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, Hebei, China; 2. Key Laboratory of Roads & Railway Engineering Safety Control of Ministry of Education, Shijiazhuang Tiedao University,Shijiazhuang 050043, Hebei, China; 3. School of Civil Engineering, Tsinghua University, Beijing 100084, China

Received:2013-03-28 Revised:2013-04-19 Online:2014-10-15 Published:2015-03-10

摘要/Abstract

摘要： 为研究钢-混凝土单箱双室梯形结合梁的畸变效应，根据荷载分解法从偏心竖向荷载中分解出独立的畸变荷载，采用ANSYS软件对其畸变变形机理进行了研究，并对横隔板及结合面相对滑移对畸变效应的影响进行了分析。主要结论为：单箱双室结合梁的畸变变形包括反对称的第一畸变变形和正对称的第二畸变变形；端横隔板对减小第一畸变变形及应力作用显著，但对第二畸变效应基本无影响；跨中横隔板则可使第一、二畸变变形及应力均明显降低；结合面相对滑移使畸变变形及应力明显增大。因此结合梁应设置端横隔板和跨中横隔板，其它位置的中横隔板可少设或者不设，且在畸变效应分析时应考虑结合面滑移的影响。

关键词: 桥梁工程, 结合梁, 单箱双室, 畸变效应, 荷载分解, 滑移

Abstract: In order to reveal the distortional effect of the trapezoid single box-double cells steel-concrete composite beams, the distortional deformation mechanism was researched by the ANSYS software under the independent distortional loads which were decomposed from the eccentric vertical load, and the influence of diaphragms and slips at the bond surface on the distortional deformation were also analyzed. The main conclusions are that, the distortional deformation of the trapezoid single box-double cells composite beams includes the first anti-symmetric distortional deformation and the second symmetric distortional deformation; the end diaphragms can reduce the first distortional deformation and stress apparently, but have little influence on the second distortional effect; the diaphragm at middle span can decrease both the first and the second distortional deformation and stress obviously; the slip at the bond surface will increase both the distortional deformation and stress. So the end and middle-span diaphragms should be set in the trapezoid single box-double cells composite beams, but the diaphragms at other locations should be limited or deleted. And the slip at the bond surface should be considered in the distortional effect analysis.

Key words: bridge engineering;composite beams, single box-double cells, distortional effect, load decomposition, slip

中图分类号:

U448.21+6

张彦玲，侯忠明，李运生，刘沛叶. 简支单箱双室梯形结合梁的畸变效应研究[J]. 重庆交通大学学报（自然科学版）, 2014, 33(5): 7-12.

Zhang Yanling, Hou Zhongming, Li Yunsheng, Liu Peiye. Distortional Effect of Trapezoid Single Box-Double Cells Composite Beams[J]. Journal of Chongqing Jiaotong University(Natural Science), 2014, 33(5): 7-12.

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简支单箱双室梯形结合梁的畸变效应研究

Distortional Effect of Trapezoid Single Box-Double Cells Composite Beams

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