摘要
为得到配筋混凝土箱梁非线性状态受力性能的简化分析方法,将用于配筋箱梁线弹性阶段受力性能分析的比拟杆法进行改进,应用于非线性阶段受力分析。采用截面换算原理考虑配筋影响的同时,分别引入钢筋和混凝土的非线性本构模型,通过增量法进行非线性状态受力性能的计算,建立考虑纵向受力筋影响的配筋混凝土箱梁非线性状态受力性能分析的比拟杆法。并通过有限元和实测结果验证该方法的有效性。
In order to development a simple method to determine the nonlinear behavior of reinforced concrete box girder,The bar simulation method for linear elastic short-term behavior in concrete box girder is extended to analysis nonlinear behavior.Based on the principle of section conversion which considerate the influence of reinforcement,at the same time,introduce the concrete and the reinforcement constitutive model,through incremental method calculate the behavior on nonlinear state,establish the bar simulation method for analysis on nonlinear behavior of reinforced concrete box girder which considered the influence of reinforcement.Through the results of the finite element method and experimental verify the effectiveness of the method.
出处
《公路工程》
北大核心
2013年第5期89-93,共5页
Highway Engineering
基金
衡阳市科技局项目(2011KJ12)
湖南省科技厅项目(2012GK3134)
关键词
混凝土
箱梁
非线性
比拟杆法
换算截面
concrete
box girder
nonlinear
bar simulation method
transformed section
