路桥过渡段沥青路面平整度的评价方法

苏曼曼1; 张洪亮2

doi:10.3969/j.issn.1671-7775.2018.03.019

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江苏大学学报（自然科学版） ›› 2018, Vol. 39 ›› Issue (3) : 362-367. DOI: 10.3969/j.issn.1671-7775.2018.03.019

论文

路桥过渡段沥青路面平整度的评价方法

作者信息 +

Roughness evaluation method of asphalt pavement between bridge abutment and approach embankment

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文章历史 +

摘要

为合理评价路桥过渡段沥青路面的平整度,采用最大瞬态振动值(MTVV)作为平整度的振动舒适性评价指标,采用Carsim建立整车车辆模型和路桥过渡段路面模型,进行人车路相互作用的仿真,分析桥头台阶高度、搭板长度、搭板纵坡变化值和车速对MTVV值的影响;基于数值模拟结果,结合通过现场试验所进行的桥头舒适性调查问卷统计结果,探究MTVV分级标准和路桥过渡段平整度评价方法.根据以上研究,提出了MTVV分级标准;对设有搭板的桥头和不设搭板的桥头,分别提出容许纵坡变化值和容许台阶高度值;针对路桥过渡段平整度提出两种评价方法.

Abstract

To evaluate the roughness of asphalt pavement between bridge abutment and approach embankment properly, the maximum transient vibration value (MTVV) was used as evaluation index of roughness vibration comfort. The full-car model and the bridge approach pavement model were established by Carsim, and the interactions of human-vehicle-road were simulated. The effects of step height, approach slab length, approach-relative slope and vehicle speed on MTVV were investigated. The grading standard of MTVV and the roughness evaluation method of asphalt pavement between bridge abutment and approach embankment were discussed according to the simulation results and the questionnaire results of comfortable feeling for passengers passing bridge-approach areas. According to the research results, the grading standard of MTVV was put forward. For the bridge with and without approach slab, the allowable differential slope and the allowable step height of bridge were proposed. Two kinds of roughness evaluation methods of bridge abutment and approach embankment were given.

导出引用

苏曼曼1, 张洪亮2. 路桥过渡段沥青路面平整度的评价方法[J]. 江苏大学学报（自然科学版）, 2018, 39(3): 362-367 https://doi.org/10.3969/j.issn.1671-7775.2018.03.019

SU Man-Man-1, ZHANG Hong-Liang-2. Roughness evaluation method of asphalt pavement between bridge abutment and approach embankment[J]. Journal of Jiangsu University(Natural Science Edition), 2018, 39(3): 362-367 https://doi.org/10.3969/j.issn.1671-7775.2018.03.019

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