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70年代在泰县通航河道上建有几十座中孔为16m的上桁架(中承式桁架拱)机耕桥。随着经济建设的发展,这些桥梁不能适应交通运输的需要,必须逐步更新改建。拆除旧桥,新建公路桥,如何在不影响河道通航的前提下拆除中孔桥梁,我们曾考虑了两个方案:第一方案是采用悬索吊装拆除旧桥。它具有安全、可靠等优
In the 1970s, there were dozens of top truss (stern truss arch) plow bridges with 16m holes in the navigable channel of Taixian County. With the development of economic construction, these bridges can not meet the needs of transportation and must be gradually upgraded and rebuilt. Demolition of the old bridge, the new highway bridge, how to remove the mid-hole bridge without affecting the navigation of the river, we have considered two options: The first option is the use of suspension hoisting demolition of the old bridge. It is safe, reliable and so on