Through comparative study of hingeless arch bridge , two-hingedarch bridge and three-hingedarch bridge, the influence of connection condition of arch on mechanical condition is discussed.
通过无铰拱、双铰拱、三铰拱的体系对比分析，讨论分析了拱自身连接条件对结构受力形态的影响；
2
Applying the step by step approximation, this paper deduces the theory and formulas of calculating the limit carrying capacity of arch bridge on the condition of four hinged destruction.
以四铰破坏为条件，推导引用逐次逼近法计算拱桥极限承载力的理论方法及计算公式。
3
In this paper a nonlinear dynamic analysis of a three-hinged-arch subjected to the ground explosive wave obtained from a testing site is described. The results are in accord with visual investigation.