铁路桥梁护轮轨螺旋道钉断裂分析

ANALYSES OF CLIP BOLT FRACTURE FOR GUARD RAIL OF RAILWAY BRIDGE

铁路桥梁自使用钢筋混凝土桥枕后，出现了许多令工务部门棘手的病害，护轮轨螺旋道钉大量折断便是其中之一，本文通过建立力学分析模型和理论计算，对道钉断裂的原因进行了分析和研究，提出了减少道钉断裂的对策措施。

A lot of deteriorated events have been taken place since prestressed concrete ties are em ployed in railway bridge,and clip bolt fracture is one of such events. By means of establishing mechani cal analyzing models,the causes for clip bolt fracture are investigated and the countermeasures of re ducing the clip bolt fracture are presented in this paper.