Customized Premium Heavy Industrial Viaduct Rigid Box Structure Bridges

Customized Premium Heavy Industrial Viaduct Rigid Box Structure Bridges

Jinzhai Road Viaduct is the first viaduct in Hefei City in September 30, 2006, the official start, after 1 year and 4 months of day and night construction, on February 5, 2008 at zero point of the whole successfully completed, to achieve the bridge on the bridge, “double through”. Jinzhai Road Viaduct south of 312 State Road, connecting the He’an Road, north to the south of the first ring Tunxi Road, and the Jintun Interchange Bridge connected, of which the whole length of the ground road 7.7 kilometers, six lanes in both directions; Viaduct 7.4 kilometres of the main line, six lanes in both directions, the design speed of 60 to 80 kilometres per hour. After completion, driving from Taoxianglou to the open area, from the original 40 minutes shortened to less than 10 minutes. Jinzhai Road elevated project road total area of 345,827 square metres, bridge total area of 262,346 square metres green area of 121,215 square metres. Divided into bridge, ground road two parts: bridge part of the south from 312 national highway north 227 meters, north to the first ring road, and the existing jintun overpass connection, the bridge main line length of 7232 meters, the ramp cumulative length of 7178 meters, the standard width of the bridge bidirectional six-lane 25.5 meters, up and down the ramp widening section of 42.5 meters, north of huangshan road is a bidirectional four-lane, 17.5 meters, the ramp unidirectional two-lane, width of 8.5 meters, and the bridge is generally 6.5-7.5 meters clear.

Ground level road part from 312 National Highway to the north side of Wuhu Road intersection, a total length of 7720 meters. The standard cross-section width is 60 meters, the bridge abutment covers an area of 7 meters, the carriageway is 12 meters × 2 for six lanes in both directions; 3 meters × 2 for machine and non-divider; 3.5 meters × 2 for non-motorised road; 1.5 meters × 2 for non-motorised road and green divider of footpath; 3.5 meters × 2 for footpath; 3 meters × 2 green belt at the outer side. Up and down ramp cross-section width of 64 meters, of which the bridge abutment occupies 7 meters, the ramp occupies 9.5 meters × 2; carriageway four lanes in both directions 8.5 meters × 2; machine and non-mixed lanes 7 meters × 2; pavement 3.5 meters × 2. North of Huangshan Road cross-section width of 61 meters, of which the bridge abutment occupies 5 meters, the ramp occupies 9 meters × 2, the carriageway is four lanes in both directions 8.25 meters × 2, the machine and non-mixed lanes 7 meters × 2. The footpath is 3.75 meters × 2.
January 21, 2016, will be the earliest built and opened to traffic Jinzhai Road viaduct continues to extend to the south, extended to the town of Feixi County on the pie, to promote the development of the southwestern area. Jinzhai Road viaduct tied wide (South Second Ring – Xi You Road) project from the South Second Ring in the north to Xi You Road in the south, about 1.82 kilometers long, “tied wide” after this section of the viaduct for the bidirectional 9 lanes (the original bidirectional 6 lanes), the eastern half of 4 lanes, the western half of 5 lanes. Ground auxiliary road synchronous transformation, the overall maintenance of the status quo two-way 8-lane scale. 29 November 2022, zero, jinzhai road viaduct tying widening (south second ring road – xiyou road) project will be formally commenced construction. 20 June 2023, jinzhai road (fangxing avenue – wangshui road) rapid transformation of the main line viaducts open to traffic. 20 June 2023, jinzhai road (fangxing avenue – wangshui road) rapid transformation of the main line viaducts open to traffic. The mainline viaduct of Jinzhai Road (Fangxing Avenue – Wangshui Road) was opened to traffic on 20 June 2023. The progress of Jinzhai Road Viaduct Tied Wide Project has been advanced to 95%, and the main bridge is expected to be completed and opened to traffic before the National Day.At 22:00 on 31 December, the mainline bridge of Jinzhai Road South Expressway Reconstruction (Wangshui Road – Station Road) Project was opened to traffic. So far, all elevated parts of Jinzhai South Road rapid transformation were completed and opened to traffic.

Bridge Structure

The bridge adopts cast-in-situ inclined web continuous box girder structure, which is characterised by good overall performance, large torsional rigidity, large spanning capacity, and the ability to adapt to various changes in plan line shape and bridge width. The bridge structure is simple and light, with smooth lines, more transparent and open vision under the bridge, and smooth traffic. Domestic largest span stacked beams in Jinzhai Road elevated for the first time: Wangjiang intersection span of 56 meters, steel box girders with reinforced concrete panels; the second ring road intersection of the main line of the largest span of 68 ters of reinforced concrete stacked beams. Hefei city construction history for the first time in the bridge on the internal drainage technology: bridge all piers in the concrete pouring, on the reserved drainage pipes, direct access to the ground drainage network, a move that changed the past in the piers tied to the pipe affecting the perception of the situation.

New urban development, will inevitably bring new challenges. Jinzhai Road Viaduct was opened to traffic, completely changed the city’s traffic of the original pattern, changed the public’s travelling habits, showing a modern road smooth people safe, colourful Lushu traffic picture, now, Jinzhai Road Viaduct is not only a fast thoroughfare, but also a safe road.

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