CE08: Bridge Incremental Launching Method || CONSTRUCTION METHOD
Автор: 3D Centre
Загружено: 2020-09-16
Просмотров: 6976
Описание:
The principle of the incrementally launched bridge consists of building the superstructure segments in a casting yard located behind the bridge abutment. Each segment is matchcast against the previous one and prestressed to the section of superstructure already built. The entire superstructure is then jacked forward a distance equal to the length of this segment. This process is repeated until the bridge is in its final position. The secondary PT is then installed and the temporary bearings are replaced by the permanent bearings. This form of construction can be used for bridges having constant cross sectional shape throughout their length. The bridge should be straight or have a constant horizontal and vertical curvature.
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