The Qiupu River Bridge section of the Chizhou Link has been hoisted on the 14th

On February 25, both the north and south sections of the main bridge of the Chizhou Yangtze River Bridge are being welded with steel box girders. The section of the Qiupu River Bridge on the Qizhou Expressway of the Jiqi Expressway has been hoisting the 14th stiffening beam.

On February 16, the Chizhou Yangtze River Bridge had been fully restored. It came to the bridge deck across the river. At first glance, the steel box girder of the main span had been erected for more than half of the time.

As we approached the bridge deck, we found that there were not many construction workers on the bridge deck. They turned out to be "hidden" in the "belly" of the box girder. "Welding must be drilled into the box girder. If you want to go in, you need to climb through this small hole reserved on the bridge deck." Zhang Xingwu, steel structure supervisor of Chizhou Yangtze River Bridge, pointed to a small hole on the bridge deck. Under the bridge deck, the workers are welding in the front box beam. In the past, they have to drill a dozen more holes horizontally. The holes are oval, each of which is not large. past.

Dozens of workers were busy at the scene, some of them polished, welded, and bolted ...

"Welding workers work from 7 am to 6 pm and will come out to eat and rest for a while at noon." Zhang Xingwu said, in addition to welding, box beam joints should also be installed, each segment beam should be installed 2416 bolts, screw The torque and front-to-back order must meet the requirements to ensure uniform force.

At present, 23 sections of the main span steel box girder have been erected on the north bank of the Chizhou Yangtze River Bridge, 4 sections have to be erected, and 6 sections have been erected on the south bank. The whole bridge is expected to be closed at the end of March and opened to traffic at the end of June this year.

Approaching the steel beam assembly site of Qiupu River Bridge, the workers are splicing tightly, adjusting the line type, hitting high bolts, and welding the top plate at the same time. Despite the complicated and complicated installation and construction procedures of the combined beam, and the continuous rain after the festival The snow weather has caused a great impact on the installation and construction of the combined beam, but with the cooperation of the operators, the construction site continues to advance in an orderly manner with quality and quantity.

"It is only after the construction of welding and high-bolt connection is completed that the maintenance vehicle track and splicing plate are installed in place, can beam erection be started." Xie Yonglin, Chief Engineer of Standard 07, introduced.

"In order to ensure the quality of welding and high bolt connection, the operator set up a special rain canopy to protect the operation position, and use the rag to remove the rain and snow scattered on the site to be constructed before construction." Xie Yonglin, Chief Engineer of Standard 07, said.

The main bridge of Qiupu River Bridge is divided into 41 beam sections, and the standard section length is 9m. At present, the Qiupu River Bridge has successfully erected and installed 12 stiffened beam sections, and 29 beam sections have to be erected and installed. The whole bridge is expected to close at the end of March.

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