通过对双铰模型与单铰模型的比较发现，双铰模型计算的结果与单铰模型计算的结果很接近，单铰模型作为一个近似模型具有一定的合理性。
Calculations of a double hinge model are compared with that of the single hinge model. It demonstrates that single hinge model is reasonable as an approximation of this model.
对双铰底板式船闸闸室与土体的动力相互作用研究显得十分必要。
The research on dynamic interaction between soil and ship locks with double-hinged soleplate is important and necessary.
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；
Through comparative study of hingeless arch bridge , two-hinged arch bridge and three-hinged arch bridge, the influence of connection condition of arch on mechanical condition is discussed.
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