The datum for piers design were collected from a large number of long-span rigid frame bridges which have been built.
以高墩大跨连续刚构桥为研究对象，收集大量已建桥梁主墩的设计类型、截面参数和系梁的设置；
The results show that long-span continuous rigid frame bridges should be modeled as precisely as possible to reflect their actual dynamic characteristics.
计算结果表明，大跨度桥梁结构的动力分析必须建立详尽的分析模型，以反映结构的实际动力特性。
The excessive deflection in the midspan is one of the main faults in long-span continuous rigid frame Bridges.
跨中下挠过大是目前国内大跨径连续刚构桥的主要病害之一。
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