wire rope bridge design made in china
the most expensive to build. True to its name, a suspension bridge suspends the roadway from huge main cables, which extend from one end of the bridge
Rope made from bamboo, itself a form of grass, was used to hang the Anlan suspension bridge in China, first constructed about A.D. 300. The bridge spans the 1,000-foot wide Min River, using piers that support eight sections of cable to do so.
Until steel cables were used in 1975, the Anlan suspension ropes were made of shredded bamboo twisted into cables, like hemp ropes are. The Chinese also used bamboo-cabled suspension bridges to cross fast-flowing rivers and deep ravines throughout their history. Later, the Chinese built iron-chained suspension bridges—long before the West used this method.
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As the Beijing-Shanghai High-speed Railway (constructed by Wuhan bridge-building group) was awarded the Special Prize of State Science and Technology Awards 2015, The China’s Bridges have become a famous brand, the same as the China High-speed Railway. Presently, there are 29 completed suspension bridges with a span length of more than 1000 meters and 21 completed and under-construction cable-stayed bridges with a span length of more than 600 meters in the world. Among these world-class bridges, the bridges made by Wuhan have made up half of the total.
In the completed suspension bridges with a span length of more than 1000 meters, 8 of which (The Xihoumen Bridge, the Runyang Yangtze River Bridge, the Nanjing Fourth Yangtze River Bridge, etc) are designed and constructed by China Railway Major Bridge Reconnaissance & Design Institute, China Railway Major Bridge Engineering Group and CCCC Second Harbour Engineering Company; In the completed and under-construction cable-stayed bridges with a span length of more than 600 meters, about 17 of which are designed and constructed by Wuhan bridge-building group.
The world’s bridges lie in China and the China’s bridges lie in Wuhan. Qin Shunquan, academician of Chinese Academy of Engineering, says the Chinese national team of design and construction, taking China Railway Major Bridge Reconnaissance & Design Institute and China Railway Major Bridge Engineering Group as representatives, has a world-class skill both in technology and construction power, which has a world-leading level in design and construction of high-speed railway bridges. China Railway Major Bridge Reconnaissance & Design Institute has designed and completed more than 60% of the total length of China high-speed railway bridges.
The US magazine Time used to comment that “The Chinese enterprises shall have their own inventions and designs, and establish their own brands. China shall not chase after the global leaders, but develop its own leaders.” Now, this prediction has come true on the platform of world bridges.
As the main force of the bridge design, China Railway Major Bridge Reconnaissance & Design Institute had won the design rights of a series of oversea major bridges, including the China-Maldives Friendship Bridge in Maldives, which is firstly built over the coral reefs. CCCC Second Highway Consultant Co. Ltd. had won the bid of the Maputo Sea-crossing Bridge in Mozambique and the whole bridge would follow the design of Chinese Standard. The Wuhan bridge-building group, as the main force of new China construction, is highlighting the brand of China’s bridges on the world platform.
59 years ago, the Chinese bridge-builders had accomplished the amazing feat of “A bridge connects the north and the south and changes the natural moat into thoroughfare” by the determination and courage of crossing the moat and transcending themselves. The Wuhan Yangtze River Bridge was commenced in September 1955 and was opened to traffic on October 15, 1957. The upper floor is a highway bridge and the lower floor is a double-line railway bridge. The bridge connects the great arteries of the north and the south, forms a complete Beijing-Guangzhou Line by connecting the Beijing-Wuhan Railway and Guangzhou-Wuhan Railway together and puts the three towns of Wuhan together, greatly promoting the development of Wuhan.
The Sidu River Bridge is the first super major suspension bridge with a span length of more than 900 meters located in mountainous area and it is named the World’s Highest Suspension Bridge. The Sidu River Bridge has won a place in the selection of Top 10 of the World’s Most Frightening Bridges from an oversea website. The bridge locates at the junction of Yichang City and Enshi Prefecture, sits on the Sidu River of Yesanguan Town, Badong County, Hubei Province and lies in the lofty hills of Wuling Mountain in western Hubei.
The Yangsigang Yangtze River Bridge locates between the Wuhan Baishazhou Bridge and the Yingwuzhou Bridge with its starting point set in Wuhan International Expo Center Overpass. The whole bridge adopts the programme of one-stride to cross the river. The span length is 1700 meters, which made it the longest suspension bridge in China.
From the Wuhan Yangtze River Bridge, the Hubei bridge-building group has found out its own knacks step by step in this technical work of high-grade, precision and sophistication on bridge-building. On the innovative soil of Hubei, the Hubei bridge-building group has taken a leading position in the world by its technological innovation. From the first bridge Wuhan Yangtze River Bridge till now, the Hubei bridge-building group has built more than 2000 bridges, which have crossed the mountains, rivers and seas and changed the natural moat into thoroughfare. The bridges “Made In Hubei” have made up half of the total bridges.
Among these bridges, the Nanjing Dashengguan Yangtze River Bridge and the Wuhan Tianxingzhou Yangtze River Bridge (constructed by China Railway Major Bridge Engineering Group) had won two cups of the highest international bridge awards “The George Richardson Prize” for our country.
The Nanjing Dashengguan Yangtze River Bridge, constructed by China Railway Major Bridge Engineering Group, has represented the highest level of the present China bridge-building and won the highest international bridge awards “The George Richardson Prize”.
The Sutong Yangtze River Bridge has a large project scale: its main span length has come to 1088 meters and it is the world’s first cable-stayed bridge with a span length of more than 1000 meters.
The Hong Kong-Zhuhai-Macao Bridge is a large bridge connecting Hong Kong, Zhuhai and Macao. It has an important strategic significance in promoting the further economic development of Hong Kong, Macao and the west bank area of the Pearl River Delta.
In November 2015, the Hubei bridge-building enterprise CCCC Second Harbour Engineering Company managed to win the bid of the China-Maldives Friendship Bridge in Maldives. It is the first bridge in this world-class tourist attraction and it is the world’s first sea-crossing bridge built over the coral reefs. The bridge connects Male (Capital of Maldives) and the Airport Island and it is called “The Most Beautiful” sea-crossing bridge.
The Padma Bridge, as “The Bridge of Dream” in Bangladesh, is one of the most important passageways between China and the Trans-Asian Railway in Southeast Asia and it is an important traffic fulcrum project of the China’s “The Belt and Road Initiative” Strategy. The bridge is the largest oversea bridge project constructed by Chinese enterprises. After the completion, the bridge will be an important transportation hub connecting Dhaka (Capital of Bangladesh) and the southwestern provinces.
From the northern border to the southern frontier of the motherland, from the North Africa to the South Asia of the foreign land, more and more “Made In Hubei” world class projects are crossing the moats and connecting the world. The wonderful jump from “Made In Hubei” to “Made In Hubei, Made In China” has helped “The China’s Bridges” officially become “The China’s Name Card” of stepping out to the world.
The G2 Tongling Yangtze River Road-Rail Bridge, the world’s first double-deck cable-stayed suspension bridge, began construction on January 4. The bridge was designed by China Railway Major Bridge Reconnaissance & Design Institute and constructed by the China Railway Major Bridge Engineering Group.
The bridge, with a major span of 988 meters, is designed with a cable-stayed suspension structure. With a total length of 11.88 km, it will serve as an expressway, inter-city railway and freight railway after completion.
The Jiangyin Tangtze suspension bridge is located at the Yangtze River Delta in China. The bridge is China"s longest span suspension bridge with a main span of 1385 m. Construction started in 1994 and the bridge was opened to traffic in 1999. The bridge has six traffic lanes and the height clearance for navigation is 50 m. The bridge is said to look like a jade-studded belt flying over the river. The main bridge is made of flat streamlined steel box girders joined by prestressed continuous concrete girders. The south tower is a gravity structure built on bedrock. On the north bank, a gravity structure for the anchor was selected together with a deeply embedded caisson. The construction of the anchorage is described. The main cables are made of parallel high-strength wires and were erected using the parallel wire strand method. The stiffening girders are made of rectangular steel boxes and were erected from cranes fixed to the main cables.
A unique 3-tower, 4-span suspension bridge is under construction in Wenzhou, China. The suspension spans are 755’ (230m) x 2,625’ (800m) x 2,625’ (800m) x 1,175’ (230m) in length, and the towers are 477’ (145m) in height. The bridge carries two levels and a total of twelve lanes of traffic, and its design service life is 100 years.
The unique bridge configuration is a result of a clearance restriction imposed by a nearby airport and the need of two wide, 1555’ (474m) and 899’ (274m), navigation channels. An "A" shaped concrete tower was selected for the center tower to provide adequate rigidity. The superstructure is continuous for 6,906’ (2,105m) and is made of steel trusses, which is 119’ (36.2m) wide and 41’ (12.5m) tall between centroids of truss chords.
CHI performed an independent checking of the design of the steel superstructure, focusing on the strength and fatigue performance of the superstructure under vehicular traffic. CHI adopted a synergic approach that combines 3D CAD modeling, finite-element analysis, customized post-processor to archive the best accuracy and efficiency. Engineers in CHI created a refined 3D CAD model of the superstructure with the accurate geometry of all steel elements including perforations and orthotropic deck details, leading to rapid generation of a high-fidelity finite-element model. Stress and fatigue analysis was then conducted in conjunction with programming in pre- and post-processing allowing automation in parametric study and rapid identification of design deficiencies. Design and optimization modifications were developed, analyzed, and proposed.
Alibaba.com offers 3,288 suspension bridge products. such as commercial, shopping mall, and adventure park. You can also choose from 25m, 7.5m, and 6m. As well as from aisi, gb, and astm. And whether suspension bridge is bridge crane.
Compared with the conventional double pylon suspension bridge, the triple-pylon suspension shows some different structural behaviours.When one of the main spans is loaded by a full live load, but another main span is empty, the middle pylon should provide the restrain to the main cable, so the horizontal component of main cable force will change significantly.
The main cable is anchored on the middle pylon; the longitudinal stiffness of the middle pylon is weaker than that of conventional double-pylon suspension bridge, in which the main cable is anchored on side anchorage, so the global vertical stiffness of the triple-pylon suspension bridge is weaker than the conventional double-pylon suspension bridge. In order to enhance the global vertical stiffness of the triple-pylon suspension bridge, the middle pylon often adopts a rigid or semi-rigid configuration, such as triangulation or inverted Y-type in the longitudinal direction. Therefore, the necessary longitudinal restraint of the pylon top is achieved by the large bending stiffness of triangulation or the inverted Y pylon structure. The solution can enhance the global vertical stiffness of the triple-pylon suspension bridge. The main disadvantage of applying triangular pylon structures is that this will induce a large longitudinal bending moment in the middle pylon shaft and foundation.
If the full rigid middle pylon is adopted, the scale of foundation will be very large because the bending moment under live load is very large. The horizontal difference of the main cable force of the middle pylon will be very large when one main span is fully loaded, and it will reduce the slippery resistance safety margin of the main cable on the saddle trough. Therefore a longitudinal semi-rigid steel pylon, with the inverted Y-type configuration in the longitudinal direction and transversely portal frame steel pylon, was designed for the middle pylon, as shown in
California is spending more than $7 billion building what it says will be an architectural marvel: the new San Francisco-Oakland Bay Bridge. But the state saved a lot of money sending some of the construction work overseas.
A typical suspension bridge is held up by cables strung between two towers like a hammock. This bridge features a single tower and a single mile-long cable that drapes up and over the tower and supports the deck like a sling.
"We will pull those strands across the bay to make this cable," says Ney. "And we keep doing that until we have all of them in place, and then we can start hanging up the suspender wires that hold up the deck."
This assembly will be performed early next year by American labor. But the massive cable, key sections of the iconic tower and deck were all made in China, which is emerging as an infrastructure powerhouse in more places than San Francisco. For example, Chinese companies have contracted with New York City for a bridge, the subway system and a commuter train platform.
The decision to outsource the fabrication of key sections of the Bay Bridge was made about five years ago, when a contractor offered alternate bids on the project, says Tony Anziano, a manager at the California Department of Transportation.
It wasn"t just the cost of labor that made Chinese steel more attractive, Anziano says. He says American steel fabricators don"t have the capacity for a job like the Bay Bridge. When union and industry groups questioned the quality of the Chinese steel, Anziano says, the state and the contractor sent more than 200 people to China to watch over the fabrication process.
China"s 13th Five-Year Plan period from 2016 to 2020 has witnessed a big leap in bridge development. During this period, the country has made constant improvements in bridge design and construction, setting multiple world records.
Over 14,000 railway bridges have been built to open to traffic covering 8,864.1 kilometers during the period, among which 6,392 are high-speed railway bridges totaling to more than 6,343 kilometers, according to the China Railway Corporation.
Located in east China"s Jiangsu Province, the Wufengshan Yangtze River Bridge is the world"s first high-speed rail suspension bridge and the country"s first suspension bridge connecting an expressway and a railway.
The road-rail suspension bridge is 6.4 kilometers in length with a main span of 1,092 meters. Integrating an eight-lane expressway on the upper deck and a high-speed railway on the lower deck, the bridge boasts the world"s fastest running speed, the largest running load, and the largest span of its kind.
The 16.3-kilometer-long Pingtan Strait Road-rail Bridge in southeast China"s Fujian Province is the country"s first cross-sea road-rail bridge, and also the world"s longest of its kind.
The road-rail bridge has a six-lane expressway on the top and a high-speed railway at the bottom, which is designed to support bullet trains traveling as fast as 200 kph. It connects Pingtan Island and four nearby islets to the mainland.
The main structure of the bridge was completed in September 2019. Before that, the region was once regarded as a forbidden zone for bridge construction, due to strong winds, choppy waters, rapid ocean currents, and rugged seabed. The wave force there is more than 10 times that of the Yangtze River and other inland rivers.
"Twelve patents have been declared for new materials, new structures, new methods and new processes," said Liu Zhijun, chief commander of the Pingtan Strait Road-rail Bridge project.
"During the 13th Five-Year Plan period, the number and technology of China"s railway bridges lead the world, which has provided strong support for the construction and operation of China"s most developed high-speed railway network and the most modern railway network," said Yang Mengjiao from China Railway Corporation.
The world"s longest sea-based project comprises of four parts, including a 22.9 kilometer steel bridge, two artificial islands, a submerged sea tunnel extending for 6.7 kilometers at a depth of 40 meters, as well as leading bridges that connect the bridge to the cities.
It has obtained 454 patents, and won the 2020 Outstanding Structure Award by the International Association for Bridge and Structural Engineering (IABSE), which is one of the top distinctions by the IABSE.
With a length of 7,548 meters and a width of 48 meters, the Qingshan Yangtze River Bridge in central China"s Wuhan city is the world"s longest cable-stayed bridge with a floating system.
"The level of bridge construction is a reflection of a country"s scientific, technological and economic strength," said Ge Yaojun, president of the IABSE. "During the 13th Five-Year Plan period, China"s bridge construction has made remarkable achievements, providing Chinese wisdom and experience to the world."