高等级公路桥头跳车病害综合防治技术研究

【作者】 方贻立；

【导师】 谢永利；

【作者基本信息】 长安大学 ， 桥梁与隧道工程， 2002， 硕士

【摘要】 本文对桥头跳车病害产生的原因、危害程度进行了归纳分析，对设置桥头搭板路段和未设置桥头搭板路段的跳车机理进行了分析研究，提出了车辆在桥头跳车时的轨迹方程。运用弹性地基理论对路桥过渡段搭板进行分析计算，给出了集中荷载及均布荷载作用下搭板的位移和内力计算方法，对台后路基沉降进行了分析研究。 结合工程实际，提出了高速公路桥头跳车病害综合防治技术、施工工艺及质量控制手段，为今后防治高速公路桥头跳车病害进行了有益的探讨。更多还原

【Abstract】 This paper summarizes the cause of jump at bridge abutment and damage degree, and researches the jump mechanism in the segment having bridge abutment slab and not having bridge abutment slab, and puts forward the trajectory equation when the vehicles jump. By use of elastic-foundation theory, the paper analysis the slab in transition segment, and comes up with the calculating method of deformation and stress of the slab under the concentrated and uniform load, and analysis the settlement of subgrade behind the abutment.Combined with the engineering practice, the author puts forward the synthetical prevention and cure technique, construction technology and controlling quality measurement, and discusses preventing and curing the jump disease in the bridge abutment of the highway.更多还原