CAJ | 학술논문

采用大型通用有限元软件ANSYS中的APDL语言编程建立了高层立体停车结构的多尺度三维有限元模型，利用生死单元技术实现了移动质量沿梁匀速移动以模拟车辆沿梁的水平横移过程；对横梁动力特性进行了详细分析，得到了正常运行状态下横梁的动力响应放大系数，并进一步考察了移动质量与横梁间相互作用刚度、移动质量及移动速度等参数变化对横梁动态响应的影响规律，最后探讨了车辆横移情况下整体结构动力响应特性。结果表明：车辆横移过程引起的结构整体振动响应很小，可忽略不计；横梁的动力放大系数在1．4～1．7之间，应重点关注。
채용대형통용유한원연건ANSYS중적APDL어언편정건립료고층입체정차결구적다척도삼유유한원모형，이용생사단원기술실현료이동질량연량균속이동이모의차량연량적수평횡이과정；대횡량동력특성진행료상세분석，득도료정상운행상태하횡량적동력향응방대계수，병진일보고찰료이동질량여횡량간상호작용강도、이동질량급이동속도등삼수변화대횡량동태향응적영향규률，최후탐토료차량횡이정황하정체결구동력향응특성。결과표명：차량횡이과정인기적결구정체진동향응흔소，가홀략불계；횡량적동력방대계수재1．4～1．7지간，응중점관주。
T he multi‐scale three‐dimensional finite element model of the high‐rise tridimensional parking structure was established using APDL language programming in general finite element software ANSYS ,and the technique of birth and death element was adopted in the model to simulate the horizontal transfer process of vehicle on the vehicle‐carrying board along the beams . The dynamic response characteristic of beams was analyzed in detail and the dynamic amplification factors of beams under normal operating condition were obtained .Then the influences of contact stiffness between moving mass and beam ,moving mass and the moving velocity on the dynamic response of beams were investigated .Finally ,the dynamic response characteristic of the whole structure during the horizontal transfer process of vehicle was also discussed .The results show that the vibration response of w hole structure during the horizontal transfer process of vehicle is tiny and can be ignored .The dynamic amplification factors of beam are between 1 .4 and 1 .7 and should be paid attention to .