Construction Scheme for Cast in situ Box Girder of Interchange (concrete pouring bowl buckle support)

Uploaded on: 2018-04-23 14:12:53 come from: Water supply and drainage / Water supply and drainage construction design / construction plan

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According to the previous construction experience and the requirements of adopting new technology and new process, the cast-in-place box girder adopts the bowl buckle steel pipe support. The bowl buckle scaffold does not need to do a large area of site leveling, and can be arranged in curves. The loading and unloading speed is more than five times faster than the cross fastener, the labor intensity is reduced, and the connector has excellent shear, bending and torsional mechanical properties, It is more than 0.5 times stronger than the fastener scaffold. All exposed formwork of the box girder shall be made of 15mm thick high-quality plywood according to the requirements of the specification "plywood and steel formwork are preferred", and 15mm thick plywood shall be used for the side formwork and top formwork of the box room.

Construction Scheme for Cast in situ Box Girder of Interchange (Concrete Pouring Bowl Buckle Bracket) - Figure 1

Construction Scheme for Cast in situ Box Girder of Interchange (Concrete Pouring Bowl Buckle Bracket) - Figure 2

Construction Scheme for Cast in situ Box Girder of Interchange (Concrete Pouring Bowl Buckle Bracket) - Figure 3

Construction Scheme for Cast in situ Box Girder of Interchange (Concrete Pouring Bowl Buckle Bracket) - Figure 4

Construction Scheme for Cast in situ Box Girder of Interchange (Concrete Pouring Bowl Buckle Bracket) - Figure 5

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Topic: Special construction scheme for safety of cast-in-place box girder How to construct the cast-in-situ bridge box girder Construction scheme of cast-in-place box girder formwork
Construction Scheme of Steel Box Girder of D Ramp Bridge of an Interchange
The seventh steel box girder steel structure project of Wuxi Jincheng East Road Interchange D Ramp Bridge is a part of Wuxi Gaolang Road and Xinxi Road Rapid Reconstruction Project (I-8 construction section) (K16+378.679~K17+940.628). The bridge is between Gaolang Road and Xinxi Road. The bridge is a three span continuous closed steel box girder with a span of 67m+41.8m+64.2m and a total length of 173m. The main body of the steel box girder is about 8.7m wide, the center height of the box girder is about 2.69m, and the total weight of the steel structure is about 950 tons.

Topic: Construction scheme of steel box girder Steel box girder transportation scheme Safety construction scheme for steel box girder installation
Construction Scheme and Safety Special Scheme for Cast in situ Box Girder of a Highway Interchange Ramp Bridge Crossing Existing Expressway
**The interchange D ramp bridge has a total length of 1057.595m and is divided into 12 sections. The fifth unit crosses * * expressway, where the 19 # pier of D ramp (pile diameter 1.3m, pile length 20m; column diameter 1.2m, column length 14m.) is located in the central separator of * * expressway.

Topic: Construction scheme of expressway interchange ramp Construction Scheme for Box Girder of Expressway Special safety construction scheme for expressway
Construction Scheme of Interchange with Four Floors
The project is an interchange with four floors, with a total of 3330.4m ramps and 850.7m urban access viaducts. Including: subgrade excavation 5800m3; Subgrade filling 38500 m3; Soft soil foundation treatment cushion 7928 m3; Soft soil foundation treatment sand pile, CFG pile 43218m; Bridge bored pile 6738m; 925m will be treated when the pile meets the karst cave; Concrete 33548 m3; Fabrication and installation of steel box girder 2173895kg; Cement stabilized cushion 37395 m3; Drainage pipe 8730m; Cast in situ and precast beams span 120 holes.

Topic: Special construction scheme for interchange Construction Scheme of Interchange Project Construction Scheme for Overpass Reconstruction
Construction Scheme for Upper Part of Yingbin Interchange
Bridge upper construction and support calculation

Topic: Construction Scheme for Bridge Superstructure Construction scheme of scaffold on bridge Upper foundation construction scheme
Construction Scheme for Cast in situ Box Girder of Expressway Interchange Ramp Bridge (Page 55)
This information is the construction scheme of cast-in-place box girder of expressway interchange ramp bridge. The cast-in-place box girder of this bridge is a prestressed concrete box continuous beam with single box and single room cross section. The first coupling beam is 1.7m high. The cross slope of the bridge deck is formed by the rotation of the top and bottom plates of the box girder. The web is designed vertically. The fourth coupling beam is 2.3m high. The cross slope of the bridge deck is formed by the rotation of the top and bottom plates of the box girder. The web is designed vertically. The thickness of the web is 45-60cm, the thickness of the top plate is 25cm, the thickness of the bottom plate is 22-40cm, the cantilever length of the box girder is 2m, the thickness of the cantilever end is 18cm, and the thickness of the cantilever root is 45cm······ 1、 Project overview II. Preparation basis and principle III, construction deployment IV, process flow chart V, construction scheme VI, construction points, key points and control methods VII, project quality assurance measures VIII, safety production, civilized construction and environmental protection assurance measures IX, construction hazard identification and prevention and control X, support emergency response plan XI, annex (construction drawing) XII Support calculation sheet ······· 55 pages in total

Topic: Construction Scheme for Expressway Interchange Construction scheme of high-speed box girder Construction Scheme for Prefabricated Box Girder of Expressway
Special construction scheme for traffic organization of cast-in-place box girder support and widening construction of a hub interchange
Ramp A bridge crosses Ramp B, with the center chainage of K0+823, the bridge length of 87m, the maximum bridge height of about 11.2m, and the bridge deck width of 12.25m. The superstructure adopts (25+30+25) m cast-in-place continuous box girder. The starting section of Ramp C # 2 Bridge crosses Ramp B and the main interchange line. The center stake is K1+257.75, the bridge is 508.5m long, the maximum bridge is 23.6m high, and the bridge deck is 12.25m wide. The superstructure between 0 # and 4 # piers adopts (25+30+30+25) m cast-in-situ continuous box girder. The maximum span of cast-in-place box girder is 30m, the beam height is 1.8m, the height width ratio is 1/6.81, and the single box double chamber straight web section is adopted. The top width of the box girder is 12.25m, the bottom width is 8.25m, the cantilever length of the flange plate of the box girder is 2m, the end thickness of the flange plate is 15cm, the junction with the web plate is thickened to 45cm, the top plate is 25cm, the bottom plate is 25cm, the web plate is 45cm, and the thickness is 95cm within 3m on both sides of the central fulcrum. The box girder is provided with crossbeams at the middle and side fulcrums. The box girder is made of C50 concrete. When crossing the main line bridge, the normal opening of the expressway must be ensured during construction.

Topic: Special construction scheme for hub interconnection Special construction scheme for traffic organization Construction Scheme of Expressway Hub Interchange