CAJ | 학술논문

路面板由于施工早龄期阶段显著的板顶干缩和凝固温度作用会形成一个始终向上的固化翘曲，基于1／4车辆模型，叠加固化翘曲、环境温度和路面等级对路面随机不平度的共同作用，采用车路动力分析方法研究了固化翘曲对车辆随机动荷载和行驶舒适性的影响。研究表明：固化翘曲对较高平整度等级路面平整度和随机动荷载影响较为显著，主要影响与（板长／车速）相关频率处的路面不平度和车辆随机动荷载参数值。固化翘曲与环境场温度梯度叠加会产生向上或向下翘曲两种情况，面板向上翘曲对路面不平整度和随机动荷载影响较大，向下翘曲则影响很小，但翘曲总体相比路面等级、车辆参数、车速对行车舒适性的影响小。基于该方法可同理分析三辊轴施工形成的更小尺度面板不平整波影响，分析表明该不平整波激振影响的基频值更高，比面板翘曲影响更显著。建议施工尽量控制面板固化翘曲与环境温度组合温度差在－10℃以下，避免辊轴波的出现。
로면판유우시공조령기계단현저적판정간축화응고온도작용회형성일개시종향상적고화교곡，기우1／4차량모형，첩가고화교곡、배경온도화로면등급대로면수궤불평도적공동작용，채용차로동력분석방법연구료고화교곡대차량수궤동하재화행사서괄성적영향。연구표명：고화교곡대교고평정도등급로면평정도화수궤동하재영향교위현저，주요영향여（판장／차속）상관빈솔처적로면불평도화차량수궤동하재삼수치。고화교곡여배경장온도제도첩가회산생향상혹향하교곡량충정황，면판향상교곡대로면불평정도화수궤동하재영향교대，향하교곡칙영향흔소，단교곡총체상비로면등급、차량삼수、차속대행차서괄성적영향소。기우해방법가동리분석삼곤축시공형성적경소척도면판불평정파영향，분석표명해불평정파격진영향적기빈치경고，비면판교곡영향경현저。건의시공진량공제면판고화교곡여배경온도조합온도차재－10℃이하，피면곤축파적출현。
Concrete pavement slab may get a significant built-in curling due to dry shrinkage and built-in temperature gradient at its initial stage.Here,effects of built-in curling of the slab on dynamic load and riding comfort of vehicles were analyzed based on a quarter vehicle vibration model and the road-vehicle dynamic interaction analysis method.The results showed that the built-in curling has more effects on roughness and random dynamic load of a higher-grade pavement,it mainly affects road roughness and vehicle random dynamic load parameters related to frequency of (slab length/speed);built-in curling and environmental temperature gradient produce upward or downward curling,slab upward curling has a larger influence on pavement roughness and random dynamic load,but down warping has little effect;riding comfort,pavement grade,vehicle parameters and vehicle speed have more significant effects on riding comfort than built-curling does.Three-roll shaft construction's built-in curling shape has a stronger effect than asiab's built in curling does;effective built-in temperature difference keeping below -10 ℃ may lead to a good performance of pavement slab.