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: 巨野县| 文安县| 镇江市| 富川| 长海县| 红安县| 昂仁县| 南陵县| 唐河县| 西畴县| 绍兴县| 湟中县| 黎平县| 吴忠市| 镇宁| 西平县| 江口县| 丽江市| 册亨县| 衡阳县| 祁阳县| 金乡县| 南漳县| 定陶县| 辽源市| 安宁市| 平乐县| 同心县| 岳阳市| 新泰市| 闻喜县| 宽甸| 黔西县| 绥芬河市| 新泰市| 海淀区| 镇坪县| 德庆县| 石狮市| 巨鹿县| 柞水县|