Construction Height Of No. 28 Main Pier Of Hutong Yangtze River Bridge Breaks 200 Meters

    In December 8th, the construction height of No. 28 main pier of Shanghai Yangtze River bridge has exceeded 200 meters, reaching 204 meters. Pier No. 28 of main tower 325 meters high, with a reinforced concrete structure, is expected before the end of the middle tower will achieve closure.

The thirty-third section of main pier No. 28 tower construction site

The 28 main pier No. thirty-third tower section of concrete pouring

Construction site of main pier No. 28, Yangtze River bridge, Shanghai

Shanghai Yangtze River bridge is a key project and control the new Shanghai railway bridge, a total length of 11072 meters, to build a bridge for four railway lines, six lane highway. The main channel of the Twin Towers three cable-stayed bridge scheme, a total length of 2300 meters, the main span of 1092 meters; the main tower with diamond type concrete structure, 325 meters high, is the world's largest span highway railway cable-stayed bridge.

Among them, the pier size of No. twenty-eighth pier is 83.9 meters and 55.7 meters, which is equivalent to the size of 12 basketball courts. The bearing platform is 9 meters high. The total amount of reinforcement is 7420 tons, and the total volume of concrete is 42900. It has the characteristics of large construction volume, tight time and heavy task. According to the construction schedule, the platform can be constructed two times. The first floor is 3.3 meters high, the concrete is 15100 cubic meters, the second pouring height is 5.7 meters, and the concrete is 27800 cubic meters.

At the completion of the first concrete pouring pile, construction personnel timely summary of construction experience, the deployment of second concrete pouring through the preparatory work, a clear division of responsibility, from the personnel arrangement, material preparation, equipment maintenance and other aspects to ensure full consideration, pier second concrete pouring completed successfully.

According to the introduction, during the pouring process, the construction workers will divide the work surface of the bearing platform into 4 operation areas, laying out 8 pouring points, arranging 2 concrete mixing boats on the water and 1 concrete fixed mixing stations on the water, a total of 8 lines, supplying concrete continuously for 24 hours. In view of the climate characteristics of high temperature difference and fast temperature change in the morning and evening, the construction personnel should take measures such as lowering the mold temperature, laying the layer, setting up the cooling water pipe, storing water and thermal insulation, and so on, so as to ensure the quality of mass concrete construction.

After the completion of the construction of the Yangtze River bridge pier of Shanghai Tong, it will be transferred to the construction stage of the main tower, thus laying a good foundation for the completion of the bridge. After the completion of the bridge, it is of great significance to further improve the regional transport structure, improve the transport capacity of the Yangtze River passage and promote the economic integration process of the Yangtze River Delta.

Pier No. 28 of main tower 325 meters high, with a reinforced concrete structure, is expected before the end of the middle tower will achieve closure.

Shanghai Yangtze River bridge is China's coastal railway channel in Shanghai (Shanghai - Nantong) across the Yangtze River control project of railway, connecting the two sides of Jiangsu province Nantong city and Zhangjiagang City, the Twin Towers bridge adopts the design of cable-stayed bridge, the main span of 1092 meters, is currently the largest span in the world Tianxinzhou bridge.

（Source of Xinhuanet）