The influence of concrete creep on bridge structure under the construction and operation stage for prestressed concrete continuous rigid frame bridge and cable-stayed bridge is also analyzed.
本文还针对预应力混凝土连续刚构桥和斜拉桥，分析计算了其在施工和运营阶段，混凝士徐变对桥梁结构的影响。
This continuous rigid-frame bridge construction of complex structure, and environmental factors, increases the difficulty of construction.
该连续刚构桥构造复杂，且受施工环境因素制约，增加了该桥施工难度。
At present, a few of cracks appear in some continuous rigid Bridges which have been constructed, and one of the reasons must be the insufficient analysis to the whole structure.
目前已建成的一些大跨径连续刚构桥中出现了裂缝，结构整体效应分析不够肯定是原因之一。
At present, a few of cracks appear in some continuous rigid Bridges which have been constructed, and one of the reasons must be the insufficient effect analysis of the whole structure.
目前已建成的一些大跨径连续刚构桥中出现了裂缝，结构整体效应分析不够肯定是原因之一。
The structure of thin-walled box girders are commonly applied in some large span continuous beam bridges and rigid frame bridges in our country.
我国已建成的一些大跨径连续梁桥及大跨径连续刚构桥都普遍采用薄壁箱形截面。
Through the static and dynamic analyses of the structure of the main span with finite-element program, this paper introduces the ductility design method for large span continuous rigid frame Bridges.
本文通过有限元程序对主桥结构进行的静力及动力分析，介绍了大跨度连续刚构桥延性设计方法。
The prestressed continuous rigid frame bridge due to the force and deformation of the structure is very complicated.
由于预应力连续刚构桥结构受力和变形情况十分复杂。
However, curved continuous rigid-frame bridge combines the forcing bearing characteristics between curved girder bridge and rigid-frame bridge, which makes the structure analysis complicated.
但弯连续刚构桥结合了弯梁桥和刚构桥的受力特点，使结构分析变得复杂。
Therefore, study on the impact coefficient of composite structure of the rigid frame and continuous beam has very important academic significance and practical value.
因此，研究刚构-连续梁组合体系的冲击系数具有重要的理论意义与工程实用价值。
Therefore, study on the impact coefficient of composite structure of the rigid frame and continuous beam has very important academic significance and practical value.
因此，研究刚构-连续梁组合体系的冲击系数具有重要的理论意义与工程实用价值。
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