石拱桥施工过程及裂缝数值模拟研究

The numerical simulation research of the construction process and crack of stone arch bridge

以跨径60 m的石拱桥为背景,对该石拱桥施工过程以及裂缝产生、发展过程进行全仿真数值模拟分析,模拟结果表明,石拱桥在施工的不同阶段的应力和应变并不随着承载的增加而增加,而是一个波动的过程,同时得到了石拱桥裂缝的分布规律,为保障石拱桥的安全使用打下了良好基础。

Based on the 60 m spanning stone arch bridge, it makes the total simulating numerical simulation analysis to the construction process, crack and develop process of stone arch bridge. The effect of simulation illustrates that it is not increasing along the bearing of the stress and strain in different phase of construction of stone arch bridge, but is a undulatory process, and gets the distribution regularity of the cracks of stone arch bridge at the same time, this will be the good basis to the safe utility of stone arch bridge.