This "first domestic" bridge is smooth in Cheng

For the first time, the pure steel pipe structure is applied to the important force component of the bridge, filling the gap in the field of steel pipes in the domestic bridge engineering steel pipes; the unique alien steel pipe mesh arch structure has enriched the type of bridge structure, and the bridge also has "high value value value "——This is the cross -Langxi River Bridge located in the east line of the future science and technology city of Chengdu. This morning, the first domestic space -like mesh arch bridge went smoothly, and it was closer to the expected opening of the traffic by the end of this year.

East One Line Cross -Laishi River Bridge Effect Map

The arch bridge of "One Crossing the River" is a "network format"

Today, the East Line of the East Line of Heilong is located in the Lixi River Park, next to Tianfu Airport. The bridge has become an important cross -river landscape bridge on the east -line road through the form of the Shanghai Municipal Court+Spanish CFC consortium, and in the form of five spans. The bridge has a total length of 292 meters and a main span of 152 meters. The bridge width is 50.2 meters. The bridge structure consists of five basic elements of the main beam, arch rib, suspension, pier, and bridge. The total steel structure is about 8,000 tons.

East One Line Cross -Laishi River Bridge Effect Map

It can be seen from the renderings that the bridge overall adopts an arched bridge form of "one cross". The curve on the plane combines the parabolic line in the vertical direction to form a complex spatial geometric form in the bridge area; and through the gap between the staggered grid, the light of the green road under the bridge can be directly supplied. The bridge is separated from the sidewalk and motor lanes on the bridge.

East One Line Cross -Laishi River Bridge Effect Map

"The East One Line Cross -Lixi River Bridge is the hub connecting the North and South District of the Future Science and Technology City. The whole bridge is integrated in the ecological axis of the Xixi River, seamlessly connected to the Future Science and Technology City Exhibition Center of the Landmark Building. The theme is to create a portal landscape that forms an ecological and diversified portal. "The relevant person in charge of the future Science and Technology City Development Service Bureau of Chengdu said.

Pure steel pipe structure "transform" bridge important force component component filling domestic bridge technology gaps

On July 28, with the precise installation of the last section of the arched ribs, the first domestic space -shaped curved arched bridge, the first line of Chengdu Future Science and Technology City, across the Lixi River Bridge.

The East One Line Cross -Lixi River Bridge successfully combined the dragon

"The East One Line spanned the pure steel pipe structure on the important stress component of the bridge for the first time. The unique alien steel pipe mesh arching structure enriched the type of bridge structure and filled the domestic bridge engineering steel pipe penetration node technology field." Li Chunquan, the project manager of the seventh bureau of China Power Construction Hydropower, told reporters that the overall shape of the bridge is like a bow, and the mesh structure is like a fishing net arched upwards. Structure, collaborative force, mesh structure of the mesh, bending, cutting, and twisting the common role, and the force is extremely complicated. It is very difficult to create a qualified stress component.

The space curve structure of the East One -Line Cross -Langxi River Bridge

"Because there are currently no special specifications and standards to provide a basis for design, we jointly carry out scientific and technological research with Shanghai Municipal Court, Tongji University and manufacturers. , And completed the static load and fatigue test, the leading domestic hot stress method to guide the real bridge penetrating node fatigue design. The bridge also adopts Asia's largest comprehensive general -purpose loading test system for static loading and fatigue test, and finally passed the test verification successfully. , Ensure the structural safety and design reliability of the bridge, "he said.

According to reports, during the construction process, through scientific and technological research, process improvement, equipment improvement, and digital technology, a series of technical problems were effectively solved, and the bridge scheme was ensured by the drawing to the authenticity of the physical authenticity.

It is reported that the bridge is expected to be opened to traffic by the end of 2022.

Chengdu Daily Jinguan News reporter Yuan Hong's interviewed unit provided the responsible editor He Qixie Editor Liu Yonghao

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