在公路和城市道路互通式立交桥中经常遇到变宽度桥梁 ,通过对变宽度桥梁设计常用的 2种方法的比较 ,指明了 2种方法的计算、设计、施工要点 ,指出各自适用的条件。供设计人员在设计同类桥梁时参考。 The bridge with widening width is often encountered in highway and urban road interchanges. Comparing the two commonly used methods for designing variable-width bridges, the points of calculation, design and construction of the two methods are pointed out and their respective applicable conditions are pointed out. For designers in the design of similar bridges reference.