At the beginning of the new year，Many major projects in China ushered in important construction nodes。Recently，In ZoomlionRWith the help of the tower crane，The highest cable tower under construction in Sichuan、Cable-stayed bridge with maximum span——Successful Hoisting of Steel Truss Girder of the First Segment of Xinshi Jinsha River Bridge along the Yangtze River Expressway，It marks the full development of the erection of the steel truss girder of the bridge.，It formally entered the key stage of the main steel truss girder erection.。

▲Zoomlion Tower Crane Helps Successfully Hoist the First Steel Truss Girder of Jinsha River Bridge in Xinshi

（Image source：People's Network）

The expressway along the Yangtze River is the largest single investment in the history of expressway construction in China.、Sichuan has the longest construction mileage、Construction of the most difficult highway project，Xinshi Jinsha River Bridge is one of the important control projects of the expressway along the Yangtze River.。The highest cable tower height of the bridge is 297.51 meters，It has refreshed the height record of the cable-stayed bridge in Sichuan.；The main span of the bridge is 680 meters.，It is the longest span steel truss cable-stayed bridge of the same type under construction in Sichuan Province at present.。The steel truss girder of the bridge is divided into 95 segments.，Total weight up to 2.More than 20,000 tons，That's the weight of a light aircraft carrier.。

▲Xinshi Jinshajiang Grand Bridge of Yanjiang Expressway（Pictures from the Internet）

ZoomlionROn behalf of the tower craneR800-40WSet on the top of the pier，The top of the tower is about 330 meters above the river.。The first section of the steel truss girder erected this time is the No.0 section of the No.6 main tower on the south bank of Yunnan.，Length 18.38 meters，28 meters wide，High 7.7 meters，Total weight about 343 tons。Adopted by the project party“The rod pieces are assembled in a scattered manner”The scheme is installed，The installation process is divided into“The member is on the bridge”“Stringer assembly”“Turn over and install in place”Three stages，The Zoomlion tower crane hoisted the rods with a total weight of about 343 tons in batches to the lower beam of the 120-meter-high main tower for installation.，The whole hoisting process is stable、Efficient、Controllable，And ensures the high-precision matching between the steel truss beam member。

▲ZoomlionR800-40WTower crane

“R800-40WThe tower crane is mainly used for hoisting steel box girders and stay cables in this project.，It has anti-collision.、The sleeve frame is prevented from falling off、Hook video and other functions，Facing the narrow construction site，The construction efficiency and convenience are greatly improved.。At the same time，It also integrates remote device debugging、Remote intelligent control、Intelligent features such as remote safety supervision，The device is realized、One-stop intelligent management of projects，It ensures the safety and efficiency of construction.。”Zoomlion built a field service engineer said.。

At present，The construction of the Jinsha River Bridge in the new city along the Yangtze River is accelerating.，It is expected that the bridge deck will be closed as soon as the end of next year.，Zoomlion tower crane will also continue to achieve“One bridge connects Sichuan and Yunnan”Provide reliable support for the vision of。