【作者】 杨建军； 周志刚；

【Author】 Yang Jian-jun, Zhou Zhi-gang (School of highway engineering, Changsha University of Science and Technology, Changsha 410076, China)

【机构】 长沙理工大学公路工程学院；

【摘要】 运用有限元分析方法,根据线弹性理论和层状体系理论,对钢箱梁桥面铺装体系的超载力学响应进行了计算,重点考察了铺装层顶部的弯沉量、铺装层顶的弯拉应力、粘结层底部的主剪切应力在特征分析路径土的分布与变化关于各级重载的反应。分析表明考察的铺装层力学性能对超载现象非常敏感,但未发现局部的大变形情况产生,力学性能的分布亦无明显的偏移变化,说明结构的强度和刚度是比较安全的。研究结果可以为大跨径钢箱梁及桥面铺装设计提供理论依据。更多还原

【Abstract】 The mechanical response of pavement on the orthotropic steel deck for over loading is calculated, by finite element method, based on liner elastic theory and layer theory. The distribution and numerical value of the decline and draught stress on pave top, also with the main shear stress on mucosity-layer bottom are analyzed. Conclusion is that pave mechanical response for over loading is prominence and the structure is safe enough to resist distortion. The results can provide the theoretical base for the paving design of orthotropic steel deck and the steel-box-girder design.更多还原