薄壁闭口曲线箱梁在温度梯度下的平面外变形

doi:10.6040/j.issn.1672-3961.0.2020.508

摘要/Abstract

摘要： 为计算薄壁闭口曲线箱梁由温度梯度引起的内力和位移,基于曲线梁的基本微分方程和最小能量原理,将一次扭转超静定简支曲线梁作为基本结构,考虑薄壁闭口曲线箱梁的翘曲效应,提出一种平面曲线梁温度变形简易解析计算方法。将解析计算结果与有限元计算结果进行对比验证,发现解析计算结果的相对误差小于5%,得出该解析计算方法在计算薄壁闭口曲线箱梁在温度梯度下的平面外变形时具有足够的精度。

关键词: 薄壁曲线箱梁, 翘曲效应, 温度梯度, 温度效应, 基本微分方程, 最小能量原理, 解析法

中图分类号:

U441.5

杨则英,赵凤金,张鹏,刘阳宇东,孙英琳. 薄壁闭口曲线箱梁在温度梯度下的平面外变形[J]. 山东大学学报 (工学版), 2022, 52(1): 47-57.

YANG Zeying, ZHAO Fengjin, ZHANG Peng, LIU Yangyudong, SUN Yinglin. Out-of-plane deformation analysis of thin-walled closed curved box girder under temperature gradient[J]. Journal of Shandong University(Engineering Science), 2022, 52(1): 47-57.

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