基于温差和收缩作用的高寒干旱地区桥台裂缝分析

Analysis of abutment crack of alpine arid region based on the temperature difference and shrinkage effects

老集高速公路位于高寒干旱的内蒙古地区,其大部分桥梁的桥台均出现了不同程度的裂缝。文章根据该桥梁所处地理位置的环境气候条件,从理论上分析了影响桥台开裂的各种因素;采用ANSYS有限元软件建立桥台的三维实体模型,将影响桥台开裂的各种因素当成荷载对桥台受力进行分析计算,确定引起桥台开裂的主要原因;提出在工程中应当注意的问题及建议,可为同类工程参考。

Old collection highway in the Inner Mongolia region alpine drought, most of the bridge abutment different degree of cracks. According to this phenomenon, the first place according to the geographical location of bridge climatic conditions, the environment is analyzed theoretically the effect of various factors ; homogenize cracking Then using ANSYS finite clement software based on the 3 - d model, the abutment abutment will influence of various factors as cracking analysis of the abutment load calcu- lation, determine the cause of cracking reasons abutment. Finally proposed some Suggestions that should be paid attention to in the construction for the similar projects.