男友太凶猛1v1高h,大地资源在线资源免费观看 ,人妻少妇精品视频二区,极度sm残忍bdsm变态

Global EditionASIA 中文雙語Fran?ais
Business
Home / Business / Technology

Smart tech plays key role in bridge construction

By ZHUANG QIANGE and PANG BO | China Daily | Updated: 2024-09-26 09:30
Share
Share - WeChat
CREC4 builders conduct check on equipment before swinging the world's heaviest asymmetric curved cable-stayed bridge in Jiujiang, Jiangxi province. [SHEN JIAPENG/FOR CHINA DAILY]

In the prefecture-level city of Jiujiang bordering Jiangxi province's capital of Nanchang, State builders have completed the world's heaviest asymmetric curved cable-stayed bridge, which has the largest swivel weight of its kind.

Builders from China Railway No 4 Engineering Group Co Ltd (CREC4), working on an interchange project of the Jiujiang Fast Transit Line, successfully maneuvered two sections of the swivel cable-stayed bridge traversing Lushan railway station to final positions early Thursday.

Built in two sections, with one section weighing 41,400 metric tons and the other 47,600 tons, they were turned on two gigantic rotating devices to targeted positions and lined up as a whole, said Shi Xifeng, chief engineer of the first phase project from CREC4.

The diameters of the two rotating devices are 7.2 meters and 6.8 meters, respectively, showing the smart engineering and top skills of Chinese builders, Shi said.

The bridge, traversing Lushan railway station — named after the world-renowned Lushan Mountain located in Jiujiang — is an asymmetric curved cable-stayed structure with the widest bridge deck and the largest swivel weight of its kind in the world, he added.

Designed as a two-way eight-lane bridge, the crossing is 465 meters long and 42 meters wide, with an 83-meter-high mother tower and a 77.5-meter-high sub-tower to support 148 intelligent anti-corrosion stay cables of 74 pairs, Shi said.

The longest single stay cable will be 137.54 meters long with a weight of some 20.22 tons, and can sustain a weight of over 950 tons, he added.

The first phase of the transit line, starting from the east side of Jiujiang toll station along the Nanchang-Jiujiang Expressway — which was put into operation on Jan 28, 1996 — has a total length of 15.1 kilometers.

Starting construction on June 20, 2022, the first phase of the Jiujiang Fast Transit Line is the first viaduct expressway in central Jiujiang. Upon completion, it will connect with the Jiujiang Yangtze River Bridge and the rapid transport network including Lushan high-speed rail station, optimizing the layout of Jiujiang's road network, said Chu Lingpeng, publicity chief of CREC4 Fifth Engineering Co Ltd, which is building the bridge.

"We are installing three magnetic flux sensors in each anchorage at the tower end for a stay cable, and there are 444 magnetic flux sensors on the whole bridge, paired with two magnetoelastic instruments for data measurement, rendering the stay cable an intelligent structure," Shi said.

"Compared with traditional cables, intelligent cables are more accurate in the tensioning process during installation, allowing timely examination and measurement during the bridge's later inspection and maintenance, and better ensuring cable force safety of the bridge," Shi added.

Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
CLOSE
 
主站蜘蛛池模板: 翼城县| 科技| 太白县| 梅州市| 莫力| 潞西市| 广饶县| 天津市| 昌邑市| 邵阳市| 四川省| 马尔康县| 龙胜| 柯坪县| 夏河县| 纳雍县| 潞西市| 桂林市| 浏阳市| 开平市| 新昌县| 友谊县| 宁都县| 开化县| 阿克苏市| 白朗县| 荔波县| 洛隆县| 乡城县| 米脂县| 黄平县| 北票市| 航空| 镇原县| 永城市| 固镇县| 达州市| 嘉禾县| 九江市| 高平市| 德令哈市|