| 基于大货车制动性能的山区高速公路坡度坡长限制研究 |
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| 引用本文： | 苏波,方守恩,王俊骅.基于大货车制动性能的山区高速公路坡度坡长限制研究[J].重庆交通大学学报(自然科学版),2009,28(2):287-289,297. |
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| 作者姓名： | 苏波 方守恩 王俊骅 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,200092 |
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| 摘 要： | 利用山区高速公路实地制动鼓测温试验的数据,对美国GSRS中的制动鼓温度预测模型进行修正,并以此模型为基础,推导大货车下坡时,其制动鼓温度与坡度、坡长、车重、车速的关系,进而算出坡度坡长限制,保证大货车制动鼓温度不超过其安全温度,以期降低大货车在山区高速公路制动失效的几率,为更安全的山区高速公路纵断面设计提供参考。
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| 关 键 词： | 山区高速公路 大货车 制动鼓温度 坡度坡长限制 |
Research on Longitudinal Slope and Slope Length Limit of Mountain-Expressway Based on Heavy Vehicles' Braking Ability |
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| SU Bo,FANG Shou-en,WANG Jun-hua.Research on Longitudinal Slope and Slope Length Limit of Mountain-Expressway Based on Heavy Vehicles'''' Braking Ability[J].Journal of Chongqing Jiaotong University,2009,28(2):287-289,297. |
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| Authors: | SU Bo FANG Shou-en WANG Jun-hua |
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| Institution: | Key Lab of Road & Traffic Engineering of Ministry of Education;Tongji University;Shanghai 200092;China |
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| Abstract: | The GSRS's temperature prediction model of the brake drum is modified by the brake drum's temperature data measured in the field test on mountain-expressway.Based on the modified model,the relationship between the temperature of large trucks' brake drum and longitudinal slope,slope length,vehicle weight,vehicle speed is deduced.With this relationship,that the longitudinal slope and slope length limit guaranteeing the brake drum's temperature are no higher than its safety-temperature is figured out.This limi... |
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| Keywords: | mountain-expressway large trucks brake drum's temperature longitudinal slope and slope length limit |
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