在我国的公路桥梁中,拱式桥梁相当普遍,其施工方法常分无支架和有支架施工两大类。无架施工需要较多的设备和较高的技术要求,因此地方自已组织施工比较困难,常要专业队伍施工,而有架施工特别是用木拱架修建石拱桥,则是我国民间的一种传统施工方法,民工均较熟悉,尤其在石料丰富的山区,它既可就 In our country’s highway bridges, arch bridges are quite common, and their construction methods are often divided into two categories of non-stent and stent construction. No-frame construction requires more equipment and higher technical requirements, so the construction of local self-organization is more difficult, often requiring professional team construction, and a construction, especially the use of wooden arches to build stone arch bridge, is a folk Traditional construction methods, migrant workers are more familiar with, especially in the mountains of rich rock, it can be