【摘要】：為給瀝青混凝土路面舒適性評價及日常管理養(yǎng)護提供理論依據(jù),在測得室內(nèi)外大量道路路面性能參數(shù)及三向加速度數(shù)據(jù)的基礎(chǔ)上,研究了加權(quán)加速度均方根值與道路路面性能參數(shù)之間的關(guān)系.運用214組有效室外實驗數(shù)據(jù),擬合了加權(quán)加速度均方根、行駛速度與平整度關(guān)系的線性回歸方程,并用駕駛模擬艙對室外實驗結(jié)論進行了驗證.結(jié)果表明:加權(quán)加速度均方根與平整度強相關(guān),與速度中等程度相關(guān),與動態(tài)摩擦系數(shù)弱相關(guān),在動態(tài)摩擦系數(shù)一定的條件下,駕乘舒適性隨平整度及行駛速度的增加而降低;當平整度為1.35和3.05 mm/m時,滿足駕乘舒適性的最大速度分別為124.1和88.7 km/h.
[Abstract]:In order to provide the theoretical basis for the evaluation of asphalt concrete pavement comfort and the daily management and maintenance, on the basis of measuring a large number of pavement performance parameters and three direction acceleration data, The relationship between weighted acceleration root mean square (RMS) and road pavement performance parameters is studied. Based on 214 effective outdoor experimental data, the linear regression equations of weighted acceleration RMS, speed and smoothness are fitted, and the results of outdoor experiments are verified by driving simulation cabin. The results show that the root mean square of weighted acceleration is strongly related to flatness, moderate to velocity and weak to dynamic friction coefficient. Under the condition of constant dynamic friction coefficient, driving comfort decreases with the increase of smoothness and driving speed. When the smoothness is 1.35 and 3.05 mm/m, the maximum velocities of driving comfort are 124.1 and 88.7 km/h., respectively.
【作者單位】： 福州大學(xué)土木工程學(xué)院;北京工業(yè)大學(xué)交通工程北京市重點實驗室;
【基金】：教育部高等學(xué)校博士學(xué)科點專項科研基金資助項目(20091103110008)
【分類號】：U416.217

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