双室组合箱梁剪力滞分析的偏泛函微分方法

喻江; 胡少伟

doi:10.21656/1000-0887.370112

双室组合箱梁剪力滞分析的偏泛函微分方法

doi: 10.21656/1000-0887.370112

喻江,
胡少伟

水文水资源与水利工程科学国家重点实验室(南京水利科学研究院), 南京 210024

基金项目: 国家杰出青年基金（51325904）；国家自然科学基金（51279111）

详细信息

作者简介:
喻江(1989—)，男，博士生(通讯作者. E-mail: yzyzyz322@126.com)；胡少伟（1969—），男，教授级高级工程师，博士生导师(E-mail: hushaowei@nhri.cn).

中图分类号: O302; TU318
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出版历程
- 收稿日期: 2016-04-14
- 修回日期: 2016-07-22
- 刊出日期: 2016-08-15

A Partial Functional Differential Method for Shear Lag Analysis of Composite Double-Cell Box Girders

State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering(Nanjing Hydraulic Research Institute), Nanjing 210024, P.R.China

Funds: The National Science Fund for Distinguished Young Scholars of China（51325904）；The National Natural Science Foundation of China（51279111）

摘要

摘要: 工程中普遍存在的剪力滞问题可能导致工程结构构件发生大变形以致严重损坏，对工程安全造成极为不利的影响.为了深入研究其作用机理，通过构建抛物型偏泛函模型，利用偏泛函微分系统对双室组合箱梁进行了推导研究.求得了在特殊外荷载（跨中集中荷载）下的特解，进一步得到了4种模式下的剪力滞偏泛函系数表达式.并从混凝土材料参数、钢梁材料参数等影响因素出发，选取模型结构，对该类型双室组合箱梁进行了参数特性研究以及对比分析.通过该研究，可为薄壁箱室结构的设计计算提供一定的指导作用和参照价值.
- 抛物型模型 /
- 偏泛函微分系统 /
- 双室组合箱梁 /
- 剪力滞特性
Abstract: The shear lag effects caused large deformation and significant damage of some structural members in engineering, and had unfavorable influences on engineering safety. To deepen the understanding of the shear lag mechanism, the partial functional differential system for steel-concrete composite double-cell box girders was proposed through introduction of different parabolic partial functional modes. In turn, the particular solutions of the differential system were obtained under a specific load (the span-center concentrated load), and the shear lag coefficients under 4 modes of partial functional expressions were also calculated. As for different concrete material parameters and steel material parameters, the shear lag characteristics of the double-cell box girder examples were comparatively studied. This work provides some reference for the design and calculation of thin-wall box girders.
- parabolic mode /
- partial functional differential system /
- composite double-cell box girder /
- shear lag characteristic

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参考文献(13)

[1]	ZHOU Yong, YU Yuan-hong. On the oscillation of solutions of first order differential equations with deviating arguments[J].Acta Mathematicae Applicatae Sinica,1999,15(3): 297-302.
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[3]	Sa-nguanmanasak J, Chaisomphob T, Yamaguchi E. Stress concentration due to shear lag in continuous box girders[J].Engineering Structures,2007,29(7): 1414-1421.
[4]	SONG Qi-gen，Scordelis A C. Shear-lag analysis of T-，I-，and box beams[J].Journal of Structural Engineering,1990,116(5): 1290-1305.
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[7]	Reissner E. Analysis of shear lag in box beams by the principle of minimum potential energy[J].Quarterly of Applied Mathematics,1946,5(3): 268-278.
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[10]	程昌钧, 王颖坚, 马文华, 李家仁. 弹性力学[M]. 北京: 高等教育出版社, 1999.(CHEN Cang-jun, WANG Yin-jian, MA Wen-hua, LI Jia-ren.Mechanics of Elasticity [M]. Beijing: Higher Education Press, 1999.(in Chinese))
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双室组合箱梁剪力滞分析的偏泛函微分方法

doi: 10.21656/1000-0887.370112

作者简介:
喻江(1989—)，男，博士生(通讯作者. E-mail: yzyzyz322@126.com)；胡少伟（1969—），男，教授级高级工程师，博士生导师(E-mail: hushaowei@nhri.cn).

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A Partial Functional Differential Method for Shear Lag Analysis of Composite Double-Cell Box Girders

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留言板

双室组合箱梁剪力滞分析的偏泛函微分方法

doi: 10.21656/1000-0887.370112

作者简介: 喻江(1989—)，男，博士生(通讯作者. E-mail: yzyzyz322@126.com)；胡少伟（1969—），男，教授级高级工程师，博士生导师(E-mail: hushaowei@nhri.cn).

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出版历程

A Partial Functional Differential Method for Shear Lag Analysis of Composite Double-Cell Box Girders

计量

出版历程

目录

作者简介:
喻江(1989—)，男，博士生(通讯作者. E-mail: yzyzyz322@126.com)；胡少伟（1969—），男，教授级高级工程师，博士生导师(E-mail: hushaowei@nhri.cn).