东南大学学报（英文版）2018，Vol.34Issue(1)：71-77,7.DOI:10.3969/j.issn.1003-7985.2018.01.011
纵坡对钢桥面铺装层力学响应的影响
Influence of longitudinal slope on the mechanical response of steel deck pavement
摘要
Abstract
In order to study the influence of longitudinal slope on the mechanical response of steel deck pavement, a method of slope-modulus transformation was proposed for the mechanical analysis of the steel deck pavement based on the time-temperature equivalence principle. Considering the mechanical action on a slope, a finite element model of the deck pavement was established to determine the critical load position of tensile and shear stress of the steel deck pavement. Additionally, the influence of longitudinal slope on the mechanical response of the deck pavement under the conditions of uniform speed and emergency braking was analyzed. The results indicate that the maximum transverse tensile stress at the pavement surface and the maximum transverse shear stress at the pavement bottom are always greater than their longitudinal counterparts under uniform speed. Under emergency braking, however, the critical slope gradient of the maximum transverse and longitudinal tensile stress at the pavement surface is 6%. The maximum longitudinal shear stress at the pavement bottom is always greater than the maximum transverse shear stress. This study is helpful in the structural design of large longitudinal slope steel deck pavements.关键词
纵坡/钢桥面铺装/应力/临界荷位/时温等效/有限元方法Key words
longitudinal slope/steel deck pavement/stress/critical load position/time-temperature equivalence/finite element method分类
交通工程引用本文复制引用
陈小兵,徐利彬,罗瑞林,刘晗..纵坡对钢桥面铺装层力学响应的影响[J].东南大学学报（英文版）,2018,34(1):71-77,7.基金项目
The National Science Foundation of China(No.51778142). （No.51778142）
