The project of ZOOMLION power tower bridge of Shanghai
Recently, the ZOOMLION engineers came to Shanghai Yangtze River on the 8 project, Zoomlion Dakota machine is a comprehensive system upgrade, to ensure the safety performance of tower crane in high winds and high frequency operation environment.
Shanghai Yangtze River bridge main pier bottom steel caisson, the upper concrete caisson is 105 meters high, 44 meters high the steel caisson permanently into the river. In order to facilitate the sinking of mud suction, 24 wells are arranged in the open caisson plane, and the 8 TCT7527-20 tower cranes of ZOOMLION are built on the "Big Mac" steel building. The two main piers have been sinking in the early stage of construction, so the foundation of tower crane is a movable body. The construction site requires high safety performance and efficiency of tower crane construction.
Based on the large amount of Engineering in Shanghai Tong Yangtze River bridge, in order to ensure the lifting performance of 8 TCT7527-20 tower cranes under complex working conditions are not affected, the engineering and technical staff of the company according to the requirements of the company all the equipment for technical upgrading and comprehensive inspection.
The project of ZOOMLION power tower bridge of Shanghai
It is reported that ZOOMLION has dozens of different types of tower crane construction of the Shanghai Yangtze River bridge construction project. Shanghai Yangtze River bridge is the road cable-stayed bridge is the largest span railway in the world, is the world's first Road railway bridge spans more than km, the project started construction in March 1, 2014, five and a half years after the completion of construction period, from Nantong city to Shanghai City, the fastest just 1 hours.
Ohashi Masahashi is the two tower five span cable-stayed bridge, a total length of 11.07 kilometers, the main span of 1092 meters, the main tower 325 meters high, the use of diamond type concrete structure, about 100 storey building, is the world's highest Road Railway cable-stayed bridge main tower, ZOOMLION brand 8 TCT7527-20 tower the two main tower construction.
On the morning of 7 services, engineering and technical personnel rushed to the ship landed on the construction site, the roar of the wind blowing, a temperature of minus 2 degrees to the deck of a ship with a thick layer of frost. An hour later, the boat stopped at the bottom of bridge construction, the bridge caisson distance more than 20 meters, to climb the ladder frame only temporary.
The first engineer is to re install anemometer, they quickly climb on the tower crane from the river more than 40 meters long, through the balance arm, sitting on the balance arm skilled to replace the anemometer, and the wind speed were tested, in order to protect the safety factor. Then they installed a rope stop device on the tower crane to prevent the wire rope from being worn when it was loaded. The rope stopping device is installed on the balance arm door frame, and the installation position is much higher than that of the man, which makes the installation difficulty and risk increase considerably. In this case, they can only climb up the frame alone, riding on the only 13 cm wide cross bar, like weightlifting athletes hold high about 1.3 meters of rope wheel to tighten.
After completion of all the upgrade services, in order to ensure the safe use of tower cranes, engineers have also carried out a comprehensive inspection of the tower crane's electrical control system, structural components, lifting mechanism, slewing bearing, etc.. When the 8 tower cranes all upgraded, inspection completed, already close to 5 p.m.. For the intimate and thoughtful service, the customer service express very touched, the current said that the United States is reassuring and reassuring representatives.
