梁桥经过拓宽改建，形成了新、老梁体拼接的组合桥。
When girder bridge is widened, a combined bridge is formed consisting of both new and old girders.
目前桥梁拓宽改建中常用的纵缝处理方式有新旧桥梁之间设置纵向断缝、翼缘板刚性连接或铰接。
Setting longitudinal break gaps between the new and the old Bridges and rigid or hinge connected the flange slabs are the usual disposal methods in widen and rebuild Bridges.
通途路原设计荷载为汽-超20、挂车-100，要拓宽、改建成设计荷载为城-A级。
When being widened and rebuilded, the designing load of Tongtu road was changed from former load(Truck-Load over 20 and trailer 100)to be class city-A.
通过对南城桥二次拓宽改造的方案优化过程、主要技术措施及改建成效等方面的阐述，探讨中小桥梁老桥改建技术。
In this paper description is given to the optimization of the 2 nd widening and improving scheme of the Nancheng Bridge, as well as the main facilities and their effects.
通过对南城桥二次拓宽改造的方案优化过程、主要技术措施及改建成效等方面的阐述，探讨中小桥梁老桥改建技术。
In this paper description is given to the optimization of the 2 nd widening and improving scheme of the Nancheng Bridge, as well as the main facilities and their effects.
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