Recently, the construction of China BayI is responsible for the construction of Jining City inner ring viadicate seven sections completed the last piece of precast box girder erection. Marking the project into the bridge deck construction phase, for the end of the smooth traffic to lay a solid foundation.

       Jining City inner ring elevated seven sections

       Jining inner ring viaduct with a total length of 41 kilometers is the first viaduct municipal road in Jining and the first fully prefabricated municipal road in Shandong.

       ▲ Jining City inner ring elevated seven sections

       As the "No.1" livelihood project of Jining, it aims at the pain and difficulty of citizens' travel, relieves the "meridians" of urban traffic, and improves the backbone network of central urban areas. The traffic speed can reach 80km/h, greatly alleviating urban traffic congestion.

       Prefabricated construction

       In order to fully implement the concept of green construction, the project adopts prefabricated construction, which saves about 50% of the construction period and 20% of the cost compared with the traditional cast-in-place process. The project consists of 215 prefabricated columns, 101 trusses of prefabricated cover beams, 1,578 cushion stones and 789 pieces of prefabricated box beams. Such a large volume of prefabricated construction requires extremely high precision hoisting.

       Before the hoisting of all components, the project surveyors will carry out two measurement rechecks on the plane position and elevation. Surveyors will follow up the measurement throughout the hoisting process and carry out the measurement recheck again after the hoisting. The deviation of plane position of all precast components and cushion stones is less than 3mm, and the deviation of elevation is less than 2mm

       The era of "building blocks" prefabricated municipal Bridges has arrived

       Traditional bridge engineering is usually constructed by pouring method, but the construction period is often long, dust and noise is serious. As a new rapid construction technology in the industry, prefabricated bridge construction technology is becoming a future development trend.