Steady, accurate and fast! Zoomlion Tower Crane Helps Build the "Lifeline" in the Air for the Largest Span Single-Layer Suspension Bridge in China
December 06, 2022
The other day，Longest span single-layer suspension bridge in China——The catwalk of the river-crossing channel of Xianxin Road in Nanjing has been completed.，The installation of catwalk protection system has been completed.。In the course of construction，Zoomlion Tower Crane with high wind resistance、High stability、High lifting efficiency、High positioning accuracy and other significant advantages，Help the project set up a construction span of 1760 meters over the Yangtze River.“Lifeline”。
▲Zoomlion Tower Crane Helps Construction of Nanjing Xianxin Road River-crossing Channel（Pictures from CCCC Second Harbor Engineering Co., Ltd.）
Nanjing Xianxin Road River-crossing Passage connects the main urban area of Nanjing and the state-level Jiangbei New Area.、An important link of Nanjing Economic and Technological Development Zone，The total length is about 13.17 kilometers。Among，The main bridge of the river-crossing bridge is a single-span integral steel box girder suspension bridge with a main span of 1760 meters.，The cable tower is of portal concrete tower structure.，From above、Medium、Lower pylon and upper、The lower cross beam consists of。The main tower is 263 high.8 meters，That's the equivalent of 88 stories.。Bridge catwalk，The suspension bridge is erected under the main cable during construction.、Linear temporary construction road parallel to the main cable，Like hanging over the river.“Scaffolding”，It is a high-altitude construction platform for the superstructure operation of suspension bridge.。
Construction on the Yangtze River，Large span and continuous high-altitude working environment pose a great challenge to construction safety.。It is understood that，The construction is assisted by two Zoomlion.W450-25HCFlat head Tower Crane，In addition to excellent lifting performance，Triple protection of lifting capacity、Torque double protection、Functions such as intelligent detection and protection of electronic control system and new frequency conversion rotary system make the equipment have extreme maneuverability and reliability in riverside and high-altitude environment.。
▲Zoomlion Tower Crane at Xianxin Road River-crossing Passage Project Site（Pictures from CCCC Second Harbor Engineering Co., Ltd.）
Final，With the full assistance of Zoomlion Tower Crane，The Project Department shall install the surface net step by step by dragging from the top of the tower to the lower part in sections.，Finally, a catwalk is set up under the left and right main cables of Xianxin Road River-crossing Passage.，Connect the main towers on the north and south sides of the bridge，Complete the suspension“Lifeline”Installation of。Key construction platform for superstructure of Nanjing Xianxin Road River-crossing Channel——The catwalk runs through the whole line，And complete the installation of catwalk protection system，The main cable erection conditions are preliminarily available。
▲Zoomlion Tower Crane at Xianxin Road River-crossing Passage Project Site（Pictures from Xinhua Daily）
“Coming up，We will install the catwalk roller and gantry.，The main cable erection is expected to start in late December.。”The relevant person in charge of the project said.。It is understood that，Xianxin Road River-crossing Passage is“Fourteen five”Major urban development projects in Nanjing during the period，It's also Nanjing“High speed road system”An important part of，It is expected to open to traffic in 2024.。After opening to traffic，It will help alleviate the bottleneck of cross-river traffic.，To enhance the primacy of Nanjing、Crossing capacity of the Yangtze River trunk line，It is of great significance to promote the integration strategy of Nanjing, Zhenjiang and Yangzhou。
