摘要
为进一步了解车辆荷载作用下桥面沥青混凝土铺装层的受力特性,借助有限元软件ANSYS对轮胎与桥梁铺装层的接触力学问题做了分析,研究了多车辆联合作用对桥面铺装层受力特征的影响。结果表明:采用轮胎—铺装层接触模型计算得到的最大压应力值明显大于按矩形均布荷载布置时的计算值,相邻行车道的行驶车辆对铺装层产生的压应力之间相互影响,铺装层厚度、铺装层弹性模量和荷载大小等对铺装层的应力和变形大小均有影响。
To further investigate the mechanical characteristics of the asphalt concrete pavement under the vehicle loads,the tires and the bridge pavement layer's contact mechanics problems were analyzed by using the finite element software ANSYS,and the influence of bridge deck pavement mechanical characteristics under joint action of vehicle loads was studied.The results indicated that the maximum compressive stress value calculated using tire-pavement contact model significantly greater than the calculated one layout by rectangular footing with uniform distributed loading,the compressive stresses of the adjacent vehicles on pavement layer affect each other,the pavement layer thickness,pavement layer elastic modulus and load size have an impact on the stress and deformation of pavement layer.
基金
山东农业大学青年科技创新基金项目资助
项目编号:23687
山东农业大学大学生创新计划项目资助
项目编号:1013008
关键词
车辆荷载
桥梁铺装层
车辆联合作用
受力特性
有限元法
vehicle loads
bridge deck pavement
joint action of multi-vehicle loads
mechanical characteristics
finite element method
