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简介 1982年5月在台湾省台北市建成了一座构思新颖的桥梁。这座多跨桥梁由Y形桥墩和预制预应力T梁组成。本文介绍了三向Y形桥墩的分析和在施工中适应不同荷载阶段的施加预应力顺序。本桥全长1145m,跨越台北市淡水溪。全桥由13孔80m主跨和2孔52m端跨组成。主跨是由长度为45m的梁支承在两相邻的Y形桥墩上,长度为27m的梁支承在每个Y形桥墩上(图1)。
Brief introduction May 1982 in Taipei, Taiwan built a novel idea bridge. This multi-span bridge consists of a Y-shaped pier and a prefabricated prestressed T-beam. This paper introduces the analysis of three-way Y-shaped piers and the sequence of prestressing applied to different load stages in construction. The bridge is 1145m in length, spanning Taipei’s Tamsui Stream. The bridge consists of 13 holes 80m main span and 2 holes 52m end span composition. The main span is supported on two adjacent Y-shaped piers by a beam of 45 m in length, and a beam of 27 m in length is supported on each Y-shaped piers (Figure 1).