CAJ | 학술논문

大型客车在安装有声屏障或防护屏的桥梁区段内行驶时，气流对声屏障或者防护屏产生较大的脉动风压力。论文基于大客车在声屏障区段内行驶的三维不可压缩湍流CFD数值分析模型，采用动网格技术分析了大客车行驶时作用于声屏障表面的有效脉动风压分布，并对比了车速、距离对声屏障脉动风压数值的影响，给出了大客车有效脉动风压的公式，其分析结果可供桥梁桥面附属设施构件设计中参考，弥补了我国现有公路桥梁设计规范中未给出汽车脉动风压的不足。
대형객차재안장유성병장혹방호병적교량구단내행사시，기류대성병장혹자방호병산생교대적맥동풍압력。논문기우대객차재성병장구단내행사적삼유불가압축단류CFD수치분석모형，채용동망격기술분석료대객차행사시작용우성병장표면적유효맥동풍압분포，병대비료차속、거리대성병장맥동풍압수치적영향，급출료대객차유효맥동풍압적공식，기분석결과가공교량교면부속설시구건설계중삼고，미보료아국현유공로교량설계규범중미급출기차맥동풍압적불족。
When the bus driven within the range of noise barrier or throwing preventing barrier , the air-flow will produces a kind of fluctuating wind pressure on them .This paper established three -dimensional incom-pressible turbulent CFD numerical analysis model of the bus -noise barrier , analyzed the fluctuating pressure distribution on noise barrier surface by using dynamic mesh technology , and made comparative analysis of speed and distance to the effect of fluctuating wind pressure value , and given the effectively fluctuating wind pressure formula.The analysis results can be used for bridge deck affiliated facilities component design , and made up of the existed highway bridge design code that fluctuating wind pressure insufficient was not given .