哈尔滨工程大学学报2017，Vol.38Issue(3)：351-355,5.DOI:10.11990/jheu.201511017
箱型梁极限弯矩简化计算方法
Simplified method for calculating ultimate bending moment of box girder
摘要
Abstract
In this study, we used the finite element method and the combined theory of strength and stability (CTSS) to determine the ultimate strength of the box girder.Due to the instability of the finite element method alone, we propose a calculation formula that simplifies the ultimate bending moment of the box girder by its combination with the initial-flexion bending moment method defined by Vasta.In two calculation cases of the box girder structure, our test results show that the calculation errors associated with this formula are less than 10%.In addition, in comparison with the nonlinear finite element method, our proposed method is simple and stable, and can provide a reference for engineering design.关键词
强度稳定综合理论/加筋板/箱型梁/极限强度/初始缺陷/有限元Key words
combined theory of strength and stability/stiffened plates/box girder/ultimate strength/initial imperfection/finite element method分类
交通工程引用本文复制引用
冯亮,董胜,王保森,甄春博..箱型梁极限弯矩简化计算方法[J].哈尔滨工程大学学报,2017,38(3):351-355,5.基金项目
国家自然科学基金项目(51479183,51309209) （51479183,51309209）
上海交通大学海洋工程国家重点实验室研究基金项目(1404) （1404）
中国海洋大学山东省海洋工程重点实验室研究基金项目(201462010) （201462010）
青年教师科研专项基金项目(201513042). （201513042）
