| 摘要 |
The present invention relates to a manufacturing method and a construction method of an environment-friendly preflex composite girder and an environment-friendly preflex composite girder thereof, which reduce construction costs as related equipment, such as a hydraulic jack or the like, is not required by using the load of liquid, such as water, to apply a preflexion load to a steel girder, are easily used to a long-span bridge by forming a space where water exists in a hollow type to reduce the weight of the bridge, and reduce construction time by simplifying the construction of the composite girder. |
