摘要
为了节省钢材、提高构件的刚度和强度,在楔形构件和蜂窝梁的基础上提出了楔形蜂窝构件.通过对悬臂楔形蜂窝构件进行连续化处理,建立楔形蜂窝构件的微分方程,进一步推导出楔形蜂窝构件的刚度方程.考虑次弯矩对楔形蜂窝构件抗侧刚度的影响,引入二阶塑性铰简化分析方法,来计算悬臂楔形蜂窝构件的屈服后变形,与有限元方法计算结果比较.结果表明:悬臂楔形蜂窝构件计算方法比较准确,满足工程设计的需要.
To increase the bending strength and stiffness of members, the tapered castellated members are presented, which have advantages of both tapered members and castellated members. After continuous treatment of cantilever tapered castellated members, the differential equations of them were derived, and then the stiffness equations were derived by approximate solution method of differential equations with the consideration of effects of the secondary moment on deformation of tapered castellated members. The refined plastic hinge analysis was used to calculate the plastic deformation of tapered castellated members. The results based on stiffness equations were compared with those of finite element analysis. They agree well with each other, which exhibits the applicability of the proposed method in engineering design.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2009年第4期18-21,共4页
Journal of Harbin Institute of Technology
基金
国家自然科学基金资助项目(50538050,50808168)
黑龙江省教育厅科学技术研究项目(11521210)
关键词
楔形构件
蜂窝梁
刚度
强度
tapered member
castellated beam
stiffness
strength
