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当前,中国经济进入了飞速发展的时代,全国范围内高等级的公路建设,实现了跨越式发展。从全国各地的高等级公路使用现状可以发现,桥头跳车现象及其普遍。桥头跳车问题将直接影响车辆的行驶速度,同时,桥头跳车问题一方面对行车的舒适性、安全性也产生了显著影响,在某种情况下,甚至因为跳车问题发生严重的交通事故;另一方面,桥头跳车问题对高等级公路的路面和桥梁产生的附加冲击荷载,将加速桥台、桥头路面及桥梁伸缩装置的损坏,直接影响高等级公路桥梁的使用寿命和社会效益。因此,分析桥头跳车的形成机理、研究桥头跳车的处治措施,具有广泛的现实意义。本文以省道滨海公路改建项目为背景,对桥头跳车问题进行探讨。
At present, the economy of China has entered an era of rapid development. The construction of high-grade highways throughout the country has achieved a leapfrog development. From the use of high-grade highways throughout the country can be found, the phenomenon of the bridge at the tip and universal. The problem of bridgehead jumping will directly affect the traveling speed of the vehicle. Meanwhile, the bridge jumping problem has a significant impact on the comfort and safety of driving. On the other hand, even in the event of a serious accident, On the other hand, the additional impact load caused by the bridgehead jumping problem on the pavement and bridges of high-grade highways will accelerate the damage to abutments, bridgehead pavement and bridge expansion joints and directly affect the service life and social benefits of high-grade highway bridges. Therefore, it is of wide practical significance to analyze the formation mechanism of bridgehead jumping and study the treatment measures of bridgehead jumping. In this paper, the provincial road coastal highway reconstruction project as a background, to bridge the issue of the car to be explored.