When the prefabricated plant is under the viaduct, the monolithic box girder is lifted by the Gantry Crane and transported by the special rotary traversed platform, and then transported and erected by the bridge girder transporting and erecting machine.
英
美
- 當預制梁場(chǎng)設在高架橋下時(shí)，采用提梁機提起整孔箱梁，通過(guò)特制旋轉式橫移平臺喂梁，運架一體式架橋機運梁和架梁。
