摘要
主要结合实际工程,通过模拟分析手段,利用有限元软件ANSYS,建立典型拼接路面结构的三维模型,结果表明,在设置搭接时,不设搭接路面承受应力要明显大于路面所承受的应力值,并且同时伴随着拼接路面结构的搭接宽度的增加,所产生的最大拉应力的增加程度也随之减小,而整个路面所受到的应力大小就会分布更加均匀;同时也会导致我们的最大剪应力呈现下降的趋势,当搭接的宽度不断增加的时候也会使得我们的最大剪应力的减小幅度变小;在搭接宽度增大到一定程度后,对路面结构内部应力的改善无意义。在拼接路面,不利位置有三个,分别为第二道拼接缝左侧0～50. 5 cm区域、顶层接缝位置左侧0～50. 5 cm区域、顶层接缝位置右侧0～50. 5 cm区域。在设计路面拼接时,在这些不利位置,避免分布重车道轮迹带。
In this paper,the three-dimensional model of a typical joint pavement structure is established by means of simulation analysis and finite element software ANSYS.The results show that the stress of the non lap pavement stress is obviously greater than that of the pavement when the lap joint is set,and the maximum tensile stress increases with the increase of the lap width.The stress distribution is more and more uniform,and the maximum shear stress gradually decreases with the increase of lap width.When the lap width is further enlarged,the maximum shear stress decreases slightly.After the lap width increases to a certain extent,the improvement of the internal stress of the pavement structure is meaningless.In the splicing Road,there are three disadvantageous positions,which are the left 0~50.5 cm area of the second joint joints,the left 0~50.5 cm area on the top seam position and the right 0~50.5 cm area on the top seam position.In the design of road splicing,in these unfavorable locations,avoid distributing heavy track tracks.
作者
南秋彩
NAN Qiucai(School of Traffic Engineering,Huanghe Jiaotong Uiniversity,Jiaozuo,Henan 450000,China)
出处
《公路工程》
北大核心
2018年第6期278-282,共5页
Highway Engineering
关键词
道路改扩建
路面拼接
受力
有限元
数值模拟
road reconstruction and expansion
pavement splicing
stress
finite element method
numerical simulation
