CAJ | 학술논문

依据纵坡弯道车辆荷载作用特性，建立纵坡弯道桥面铺装结构三维有限元模型，分析车辆载重、行驶速度、弯道半径、纵坡坡度、沥青铺装层厚度与模量对水平剪应力的影响。结果表明：设计时避免最小半径极限值与纵坡坡度最大值同时出现，适当增大沥青铺装上层模量、铺装层总厚度、减小沥青铺装下层模量，并严格控制纵坡弯道上车速及车辆载重，可减少沥青铺装层发生推移病害的可能性。
의거종파만도차량하재작용특성，건립종파만도교면포장결구삼유유한원모형，분석차량재중、행사속도、만도반경、종파파도、력청포장층후도여모량대수평전응력적영향。결과표명：설계시피면최소반경겁한치여종파파도최대치동시출현，괄당증대력청포장상층모량、포장층총후도、감소력청포장하층모량，병엄격공제종파만도상차속급차량재중，가감소력청포장층발생추이병해적가능성。
Based on the properties of vehicle loads on longitudinal slope and curved sections, this paper establish-es the 3D finite element model for the bridge deck pavement, analyzing effects of the vehicle loads, running speed, the radius of curved sections, longitudinal slope degree, the thickness and modulus of asphalt layer on horizontal shear stress. Results show that in order to avoid the appearance of the minimum radius and the maximum longitudi-nal slope degree at the same time, it is advisable to increase modulus of upper asphalt layer and the total thickness of asphalt layer, decrease sub-layer modulus, and limit the vehicle speed and load at the curved sections so that translation diseases of asphalt layer can be reduced.