CAJ | 학술논문

根据目前道路上安装的反光式突起路标存在破坏率高、反光功能失效快等问题,在调查数据基础上,分析得出反光式突起路标的主要破坏形式为脱落、压碎、凹陷、反光性能衰减等,破坏主要原因有基体材料抗压强度不够、机体与路面粘结不牢固等。在此基础上,运用ANSYS软件,建立有限元分析模型,将影响因素分为静荷载与动荷载两种情况分别加载到有限元分析模型上进行力学分析,模拟得出突起路标的主要应力集中点在突起路标表面四个边缘区域与钉脚与基座衔接段。将ANSYS分析数据导入Fe-Safe软件,模拟得出突起路标在荷载作用150482次后发生破坏,疲劳寿命系数为0.613,屈服极限为603Mpa。
근거목전도로상안장적반광식돌기로표존재파배솔고、반광공능실효쾌등문제,재조사수거기출상,분석득출반광식돌기로표적주요파배형식위탈락、압쇄、요함、반광성능쇠감등,파배주요원인유기체재료항압강도불구、궤체여로면점결불뢰고등。재차기출상,운용ANSYS연건,건립유한원분석모형,장영향인소분위정하재여동하재량충정황분별가재도유한원분석모형상진행역학분석,모의득출돌기로표적주요응력집중점재돌기로표표면사개변연구역여정각여기좌함접단。장ANSYS분석수거도입Fe-Safe연건,모의득출돌기로표재하재작용150482차후발생파배,피로수명계수위0.613,굴복겁한위603Mpa。
Aiming at the problems of high damage rate and fast function failure of reflective protuberant pavement marker installed in present road,on the basis of survey data,it is analyzed that the major failure modes of the marker is signs off,structure crushed,body sunken and reflective performance degradation.And the main reasons of function failure include compressive strength deficiency of base material and unfirm of adhesion strength between the body and pavement.A finite element analysis model was set up by using ANSYS software to carry out mechanical analysis.During the process,the load was divided into two types,static load and dynamic load,which were put on the finite element analysis model in ANSYS to simulate the stress concentration points.It was found that stress concentration happens on the surface around four edges and the position of knot between nail and base.The analyzing data in ANSYS was imported into Fe-Safe software to simulate the failure process of reflective protuberant pavement marker under the given load.Then the service life（150482 times） and the rolling frequency（0.613） as well as the yield limit（603Mpa） of the pavement marker were got.