摘要
有限元分析被广泛用作建立桥梁模型并产生准确结果的有效方法。本文采用有限元软件LUSAS对上部结构为板式的悬索桥建立2D、3D梁格模型,进行梁格法的空间计算,分析2D、3D模型的优缺点,同时比较梁格模型在线性计算和非线性计算下结论的差异性,最后通过壳有限元分析法建立模型进行计算,比较与梁格模型的不同特点。
Finite element analysis has been widely used as an effective method to build bridge models and produce accurate results.This paper uses the finite element software LUSAS to establish 2D and 3D grillage models of the suspension bridge with plate superstructure,carries on the spatial calculation of the grillage method,analyzes the advantages and disadvantages of the 2D and 3D models,and compares the difference between the conclusion of the grillage models in linear calculation and nonlinear calculation.Finally,the shell finite element analysis method is used to establish a model to compare with the grillage model.
出处
《中国建材科技》
2020年第6期113-114,75,共3页
China Building Materials Science & Technology
基金
浙江省建设科研项目(2019K080)。
关键词
地震荷载
梁格模型
壳有限元分析法
seismic load
grillage model
shell finite element analysis
