关键词: 正交异形板, 桥面铺装, 有限元方法, 力学分析

Abstract: The influence of structural and load factors on mechanical responses of pavement on orthotropic steel deck was studied through finite element method． The influence of main girder，thickness of deck plate and thickness of stiffener on stress was compared． The effect of vertical and horizontal loads on bridge pavement was analyzed． The results indicated that maximum tensile stress existed beyond the main girder; increase of deck plate thickness could lower the stiffness difference of deck and reduce maximum stress; change of thickness could be favorable for steel structure rigidity while unfavorable for stress of pavement． Overloading could be rather unfavorable for stress and horizontal stress caused by emergency braking could lead to great longitudinal tensile stress．

Key words: orthotropic steel deck, bridge pavement, finite element method, mechanical analysis