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双曲拱桥无支架施工,是在1964年修建纵悬砌拱桥的基础上于1966年发展起来的一种先进施工方法,是我国公路桥梁建设中的一项技术革新成果,为双曲拱桥的推广和发展开辟了广阔的道路。双曲拱桥无支架施工同一般惯用的有支架施工方法比较,具有以下优点:1.节约大量的支撑木材,仅湖南省用无支架施工修建的13座双曲拱桥(全长2,000米),就节约木材5,000立方米;
Double-curvature arch bridge without scaffolding construction is an advanced construction method developed in 1966 on the basis of the construction of vertical suspension arch bridge in 1964. It is a technological innovation achievement in the construction of highway bridges in China, and is the promotion of double-curved arch bridges. And development has opened up a broad road. Compared with the commonly used bracket construction method, the double-curved arch bridge without scaffold construction has the following advantages: 1. Save a lot of support timber, only 13 double-curved arch bridges (2,000 meters in total length) constructed in Hunan province without scaffolding construction. Save 5,000 cubic meters of wood;