Introduction of Luoyang Lingyingzhou Bridge?

Luoyang Lingyingzhou Bridge is a symmetrical separated bridge connecting the north and south banks of Luohe River, with a total length of 143+0 meters.

brief introduction

Yingzhou Road extends from the north bank of Luohe to the south bank, and comes to an abrupt end at the bank of Luohe. Heluo Road and Luoyi Road face each other across the Luohe River, just like a cowherd and a weaver girl, longing for a bridge across the river. If the traffic and people on both sides of the upper reaches of Luohe want to cross the river, they must take Sunxin Bridge (Ling Bo Bridge under construction) to the west or Xiyuan Bridge to the east. From Binhe Road to Binhe West Road, there is no direct access to the south of the bridge, so we have to make a detour. For many years, Luoyang people have been waiting-when will the natural barrier become a thoroughfare? On April 6, 2009, Yingzhou Bridge was completed and opened to traffic with a salute, which declared that this dream of Luoyang people had come true.

Yingzhou Bridge, located on Yingzhou Road in the upper reaches of Luohe City, is the largest municipal infrastructure project in Luoyang at present, with a total investment of 279 million yuan, which is the highest in bridge construction in our city. As two symmetrically separated bridges, the total design length is 1543. 1m and the main part of the bridge is 1 160m. Among them, the main bridge across the river is 6 10/0m long, and consists of 8 side-span through reinforced concrete continuous arches and 1 moon-shaped half-through concrete filled steel tubular tied arches, with a mid-span of120m. The road length of the bridge approach connecting line is 383. 1m, and the standard width of the bridge deck is 31m. Two-way four lanes, the design load standard is city -A, and the design speed is 70 kilometers per hour.

Traffic lights and traffic signs have been installed, zebra crossings have been drawn, and bicycle graphics and other signs and markings have been drawn on the bridge deck to guide pedestrians to cross the bridge safely. The speed limit sign on the roadside reminds drivers and friends: even if you pass on such a wide and flat bridge, don't let your temper get the upper hand.

Yingzhou Bridge has special motor vehicle ramps, non-motor vehicle ramps and sidewalks. Motor vehicles only need to cross the bridge from Yingzhou Road or Luoyi. Non-motor vehicles need to bypass the ramp of the half overpass on the south bank of Yingzhou Bridge and cross the bridge after reaching the main bridge. Pedestrians on the north and south banks of Luohe need to cross the culverts and stairs on both sides of the approach bridge.

The completion of Yingzhou Bridge is of great significance to Luoyang's complementary advantages in industry, science and technology and education, and to the development and construction of new areas and the promotion of "cross-strait prosperity".

"With this bridge, the traffic pressure of Xiyuan Bridge can be greatly alleviated. The Luxi Industrial Zone and High-tech Zone on the north bank of Luohe are connected with the University Town and Luolong Science and Technology Park on the south bank through this bridge. " Ma Chaoxin, commander of Yingzhou Bridge Project and deputy director of the Municipal Construction Committee, said.

Mr. Liu, a citizen who lives near Binhe Road and works in the new campus of Henan University of Science and Technology, said: "This is really a happy bridge! It will be much more convenient for me to go to work in the future. I don't have to go around anymore. I can sleep for at least half an hour in the morning. "

Create a number of Luoyang firsts in succession.

As the first super-large river-crossing bridge in Luoyang with the largest engineering scale, the most difficult construction, the most complex technology, the highest scientific and technological content and the most novel structural form, Yingzhou Bridge has created many firsts in the construction history of Luoyang Bridge.

It is the first and only bridge in Luoyang that adopts the construction monitoring and operation health monitoring of the main bridge. In the early stage of Yingzhou Bridge construction, the monitoring personnel of Southeast University buried 369 strain sensors and 9 large-tonnage cable force sensors in key parts of the bridge. During the bridge construction, the stress change information of each control section will be transmitted to the monitoring room under pier 2 1 of Yingzhou Bridge through optical fiber signals.

"2 1 pier" is a magical place in the view of Professor Miao Changqing, the representative of Yingzhou Bridge. If the sensor is equivalent to the probe that moves on the human body when people do B-ultrasound, then "Pier 2 1" is the computer connected with the probe. Doctors can judge whether the human body is healthy through the pictures displayed by the computer, and the monitoring personnel of Yingzhou Bridge can decide whether the stress state of the main bridge construction structure of Yingzhou Bridge needs to be adjusted through the computer simulation analysis under the pier of 2/kloc-0.

"After the completion of Yingzhou Bridge, these buried sensors can continue to be used as probes for bridge operation health monitoring, providing the most intuitive data for daily maintenance and maintenance of the bridge." Ma Chaoxin, the chief commander of the project, proudly said, "Because we don't need to re-control these facilities on the bridge, we have saved at least 3 million yuan. At present, this technology of effective combination of construction monitoring and post-operation health monitoring is still in a leading position in China. Yingzhou Bridge is the first bridge in Luoyang to adopt various bridge types. A Yingzhou Bridge integrates five bridge types: simply supported beam, continuous approach bridge, through reinforced concrete tied arch of main bridge, triangular rigid frame of main bridge and through tied arch of main span. Such a complex structure has made the builders move a lot of brains.

The triangular area of the main pier in the middle of the bridge spans 46 meters and the smooth concrete is 2600 square meters. Can you "stand firm"? According to the bridge completion ratio of 1:5, the researchers of the Bridge Science Research Institute of China Railway Bridge Bureau spent more than 600,000 yuan to establish a solid model of the triangle area, and tested the stress of the completed bridge in advance, which is the first time in the history of Luoyang Bridge construction to adopt a model test.

"Only bridges with unusually complex structures will take such a cautious approach. It's the first time I've seen such a complicated project as the Yingzhou Bridge. " Ma Decai, executive deputy commander and senior engineer of Yingzhou Bridge, who has decades of experience in municipal construction and graduated from Tongji University with a major in road and bridge design, said.

This complexity has brought great difficulty to the construction, and the construction party even used the largest gantry crane in Luoyang's bridge construction history. It is more than 50 meters high and nearly 50 meters wide, and the lifting weight can reach 50 tons at one time. It is a veritable monster.

As the first inverted triangular parabolic arch bridge in China, Yingzhou Bridge has applied for a national patent for its exterior design.

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