摘要
建立了空间块体分析模型 ,通过对曲线脊骨箱梁整体结构的分析和计算 ,考虑曲率半径、作用点位置等参数的影响 ,得出上承式曲线脊骨箱梁在纵、横两个方向上的应力分布状况、剪力滞效应及随相关参数变化的规律 ;并与一般曲线箱梁相比较 ,描述了曲线脊骨箱梁在不同荷载作用下的受力性能 ;通过有机玻璃模型试验验证了计算的正确性。
In this paper,the special block finite element models of curved spine box beam are established.Based on the calculation and analysis of models with structural parameters such as radius and load position discussed,the rules of longitudinal and transverse stress distribution,the shear lag effect and the variational law with parameters in up supported curved spine beam are educed.The results are also compared with the common curved box beam.The loaded properties of curved spine beam are preferably described.The experiment of curved spine beam made from organic glass carried out validates the correctness of the calculations.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2001年第3期51-56,共6页
China Journal of Highway and Transport
基金
福建省自然科学基金项目 ( E9810 0 0 6)
