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Design of 20m prestressed concrete simply supported box girder bridge

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The "Hexi Project" is located in the northeast of Sichuan Basin, and the wind speed is low in the transition zone from the hilly area in central Sichuan to the low mountainous area in northern Sichuan. The climate natural ecological zone protection area, Gouxi River, is rainy from May to June (similar to the Meiyu in the south of the Yangtze River). From July to August, it is controlled by the subtropical high pressure, hot and dry, with low annual precipitation and no record of catastrophic floods.

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Design of 20m prestressed concrete simply supported box girder bridge - Figure 2

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Design of 20m prestressed concrete simply supported box girder bridge - Figure 4

Design of 20m prestressed concrete simply supported box girder bridge - Figure 5

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Design drawing of prestressed concrete (simply supported) hollow slab

Data Catalog I, Specification II, Design Drawing 1, Summary Table of Materials Quantity of One hole Prefabricated Hollow Slab 2, Summary Table of Materials Quantity of One hole Deck Pavement 3, Standard Cross Section 4, General Structural Drawing of Hollow Slab 5, Structural Drawing of Hinged Joint Reinforcement 6, Structural Drawing of Obtuse Angle Reinforcement of Deck 7, Structural Drawing of Reinforcement of Hollow Slab Bottom Plate 8, Structural Drawing of Continuous Reinforcement of Deck 9 Structural Drawing of Reinforcement for Cast in situ Deck Layer 10, Structural Drawing of Reinforcement at Anchor Sealing End 11, Structural Drawing of Prestressed Tendon 12, Structural Drawing of Reinforcement at Slab End 13, Structural Drawing of Ordinary Reinforcement for Medium Slab (α=0 °) 14, Structural Drawing of Ordinary Reinforcement for Medium Slab (α=15 °) 15, Structural Drawing of Ordinary Reinforcement for Medium Slab (α=30 °) 16, Structural Drawing of Ordinary Reinforcement for Side Slab (C=380mm α=0 °) 17. Structural Drawing of Ordinary Reinforcement of Side Plate (C=380mm, α=15 °) 18. Structural Drawing of Ordinary Reinforcement of Side Plate (C=380mm, α=30 °) 19. Structural Drawing of Ordinary Reinforcement of Side Plate (C=505mm, α=0 °) 20. Structural Drawing of Ordinary Reinforcement of Side Plate (C=505mm, α=15 °) 21. Structural Drawing of Ordinary Reinforcement of Side Plate (C=505mm, α=30 °) 22. Structural Drawing of Ordinary Reinforcement of Side Plate (C=630mm α=0 °) 23. Structural drawing of ordinary reinforcement of side plate (C=630mm, α=15 °) 24. Structural drawing of ordinary reinforcement of side plate (C=630mm, α=30 °) 39 drawings in this set.

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Main material and strength grade: C50 steel fiber concrete: expansion joint. Precast C40 concrete: hollow slab. Cast in situ C40 concrete: cast-in-situ layer of bridge deck, hinge joint. Cast in situ C40 small stone concrete: bearing pad stone. C35 concrete: bent cap, abutment body and pier body. C30 concrete: cushion cap, tie beam, pile foundation, anti-collision guardrail, bridge approach slab, slab culvert cover plate, circular pipe culvert. C25 concrete: slab culvert abutment cap, abutment body and foundation, support beam, end wall body and foundation. C25 concrete: splayed wall body and foundation, opening paving, cut-off wall. C15 concrete: approach slab cushion, culvert curb. Asphalt concrete: bridge deck pavement. M7.5 mortar rubble: abutment cone slope protection, cone slope foundation, cone slope retaining wall, reinforced concrete circular pipe culvert foundation.

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Data Catalog Design Description Bridge Site Plan Bridge Type Layout Drawing 2 Route Plan Route Profile Drawing 13 Abutment Ear Wall Reinforcement Layout Drawing 2 Crash Barrier Reinforcement Layout Drawing Bill of Quantities Hollow Slab Slab End Reinforcement Layout Drawing Hollow Slab Side Slab Ordinary Reinforcement Layout Drawing 2 Hollow Slab Anchor Sealing Reinforcement Layout Drawing Hollow Slab Hinge Joint Reinforcement Layout Drawing Superstructure Standard Cross Section Drawing Hollow Slab General structural drawing 2.. 45 drawings

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2. Design load: Highway Class III. 3. The approach slab at the bridge head is 5m long. 4. The upper part of the bridge adopts 20m prestressed reinforced concrete hollow slab simply supported beam, and the lower part adopts pile foundation connected capping beam. 5. A D40 concealed expansion joint is set at 0 # and 1 # abutments respectively. 6. Design flood frequency: 1/50.

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[Hunan] 20m prestressed concrete simply supported hollow slab superstructure design drawing (0-45 degree full set)

1. The bridge on curved section can be adapted by changing the length of precast slab. The drawings in this volume are applicable to the change range of precast slab length within ± 250mm. If the change range of slab length exceeds this range, it shall be calculated and adjusted according to the specific conditions of each bridge. 2. This volume of drawings adopts 80 type expansion joint or 160 type expansion joint. When using this general drawing, the appropriate length of one joint shall not exceed 160 expansion joints according to the meteorological conditions at the bridge site. During construction, the installation width of expansion joints shall be determined according to the temperature during installation. 3. No expansion joint notch is reserved in the drawings in this volume. In the specific design, expansion joint notch shall be reserved according to the actual joint width. 4. The design load class in this drawing is highway - Class I. When there are out of gauge vehicles passing through, structural checking calculation shall be carried out and corresponding measures shall be taken. 5. This general drawing does not design expansion joints, bearings, guardrails, drain pipes, etc., and other drawings shall be referred to when using. 6. Prefabricated hollow slab can be divided into left and right skew. This general drawing only shows a skew direction. Please pay attention to the skew direction of the bridge when using. 7. If the design parameters are different from this drawing, it shall be designed separately. ...... 102 drawings in total

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9-20m prestressed concrete T-beam cad design drawing

2. This bridge is designed for the upper span gully, and the superstructure is 9-20m prestressed concrete simply supported T-beam; The substructure adopts reinforced concrete pile pier and gravity abutment; The foundation adopts pile foundation and expanded foundation respectively. 3. The plane of this bridge is located in the straight section, most of the longitudinal plane is located in the convex vertical curve, and some is located in the+0.3% uphill section. Drawings include: general structural drawing of bridge pier general layout drawing of bridge abutment

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Construction copy of 20m prestressed hollow slab beam
This project is located in xx Town, xx City, which is a key project of xx Province - xxxxxx Ecological Leisure Project. It is one of the main channels for the external traffic of xx Ecological Leisure Zone. The starting point is located in Xiaxi District, Xiawu Village, connecting Xiang'an South Road. The route runs from west to east, parallel to the provincial highway 201, passing through xx Village, xx Village, xx Village, and xx Village, and ending at xx Village, connecting Nangang Road. The total length of the route is 9.387km. A total of 3 medium bridges of 198.36m are set along the whole line in this design. See the following table for details of bridge settings: Table 2-1 No. Bridge Center Pile No. River name and bridge name Full width of bridge deck (m) Total length of bridge (m) Bridge intersection angle (degree) Number of holes and aperture (hole-m) Upper structure pier, foundation abutment and foundation 1 K3+568.2 Xidongxi Middle Bridge Left: 29.5 Right: 26.0 66.12 60 3 × 20 precast prestressed concrete simply supported hollow slab cylindrical pier, pile foundation ribbed slab abutment Pile foundation 2 K6+514.2 Laogangxi Medium Bridge 2 × 22.5 66.12 60 3 × 20 precast prestressed concrete simply supported hollow slab cylindrical pier, pile foundation pile column platform, pile foundation 3 K7+845.0 Xibanxi Medium Bridge 2 × 22.5 66.12 120 3 × 20 precast prestressed concrete simply supported hollow slab cylindrical pier, pile foundation pile column platform, and pile foundation The superstructure of the three medium bridges is prestressed reinforced concrete simply supported hollow slab beam, Simply supported structure, continuous deck. The three medium bridges are located on the transition curve, circular curve and straight line respectively, and the curve radius is large. In order to facilitate the construction of precast hollow slab beams, the layout method of replacing curve with straight slab is adopted. The specific layout is as follows: (1) Xidongxi Medium Bridge: the precast slab beam is 0.95m high, and the post tensioning process is adopted, in which the left width is 29.5m, 23 precast slabs are arranged in a single span, the right width is 26.0m, and 20 precast slabs are arranged in a single span. The whole bridge has 129 prefabricated hollow slabs in total, including 12 side slabs and 117 middle slabs. The cantilever length of prefabricated side slabs is 505mm and 630mm respectively, the width of middle slabs is 1.24m, and the width of installation joints is 0.01m; (2) Laogangxi Medium Bridge: the full width of a single bridge is 22.5m, and 18 precast hollow slabs are arranged horizontally in a single span. The whole bridge has 108 prefabricated hollow slabs in total, including 12 side slabs and 96 middle slabs. The cantilever length of the prefabricated side slab is 255mm, the width of the middle slab is 1.24m, the width of the installation joint is 0.01m, and the height of the prefabricated beam is 0.95m. The post tensioning process is adopted; (3) Xibanxi Medium Bridge: the precast beam is 0.95m high, and the post tensioning process is adopted. The width of a single bridge is 22.5m, and 17 precast hollow slabs are arranged in a single span. The whole bridge has 102 prefabricated hollow slabs in total, including 12 side slabs and 90 middle slabs. The cantilever length of prefabricated side slabs is 630mm, the width of prefabricated middle slabs is 1.24m, and the width of installation joints is 0.01m.

Topic: Prestressed concrete hollow slab Prestressed concrete hollow slab 03sg435-1 Technical disclosure of prestressed hollow slab construction
Construction Scheme of a Prestressed Concrete Simply Supported Box Girder Pier in Hainan
XX Avenue starts from G225 National Highway, extends from west to east, crosses Hainan West Ring Railway, ends at Hainan West Line Expressway, and interchanges are set at the intersection with the expressway. The total length of the road is about 5.5 km, which is the Class I standard of urban trunk road, and the width of the red line is 40 m. This section is a bridge project across the West Ring Railway. The crossing mileage with the West Ring Railway is K260+131=highway K2+702. The starting and ending mileage of the section is K2+500~+905. The total length of the overpass bridge is 380.65m, which is orthogonal to the existing West Ring Railway. The span design is 15 × 25m. The 25m prefabricated prestressed concrete simply supported box girder is used. The total width of the bridge deck is 32m. The project area belongs to the tropical monsoon climate zone, with an annual average temperature of 25~26 ℃, sufficient sunlight, lush vegetation, abundant marine plankton, and high seawater availability value.

Topic: Construction scheme of prestressed concrete box girder Construction scheme of prestressed simply supported bridge Construction Scheme of Concrete Simply Supported Small Box Girder
Construction organization design for the left side of a prestressed concrete simply supported hollow slab bridge
The central stake mark of this bridge is K28+319, which is designed to cross the river, and the intersection angle with the route is 90 °.

Topic: Prestressed concrete hollow slab bridge Construction scheme of prestressed concrete slab bridge Construction Scheme of Prestressed Hollow Slab Bridge
Construction Organization Design for Left Side of Prestressed Concrete Simply Supported Hollow Slab Bridge
The central stake mark of this bridge is K28+319, which is designed to cross the river, and the intersection angle with the route is 90 °. The design load is automobile - Grade 20, trailer - 120. The superstructure of the bridge is a 1-20.0m prestressed concrete simply supported hollow slab. TCYB φ 200 × 42mm spherical crown bearings are used as the bearings. The joints between the bridge deck and the abutment are cut. Reinforced concrete approach slabs are set at both ends of the abutment. Prestressed concrete hollow slab is poured with half width and whole block of C40 concrete. The length of the slab is 19.94m. The total installed weight of the half width hollow slab is 2392KN. The bridge deck width is 0.467+12.033+1.0=13.5m (half bridge width). The cast-in-place bridge deck is made of C40 concrete. Type A guardrail seat is used for the inner side of the bridge, and type B guardrail seat is used for the outer side. The plane of this bridge is located on the right circular curve with R=5500m, and the longitudinal slope is located on the section with i=-0.7% longitudinal slope. The total length of the bridge is 34m.

Topic: Prestressed concrete hollow slab bridge Construction scheme of prestressed concrete slab bridge Construction Scheme of Prestressed Hollow Slab Bridge
Calculation example of 40m prestressed concrete simply supported T-shaped bridge
China has a vast territory, with mountains, rivers and lakes crisscrossing the country. There are still a large number of ferries in the road routes that have been opened to traffic that need to be rebuilt into bridges. With the development of socialist industry, agriculture, national defense, science and technology

Topic: Construction scheme of prestressed simply supported bridge prestressed concrete Calculation sheet of prestressed concrete beam
Design Drawing of 1-16.0m Prestressed Concrete Simply Supported Hollow Slab Bridge
This drawing is a design drawing of 1-16.0m prestressed concrete simply supported hollow slab bridge, which includes general structure of roadside guardrail seat, reinforcement plane of roadside guardrail seat, transverse layout of approach slab at bridge head, reinforcement plane of approach slab, etc. The contents are detailed and can be used for reference.

Topic: Prestressed hollow slab bridge Prestressed concrete simply supported hollow slab Concrete simply supported slab bridge
Drawing of 7x20m prestressed concrete simple supported continuous box girder bridge

Complete set of drawings of continuous box girder bridge, box girder size and reinforcement data.

Topic: Prestressed continuous box girder bridge Prestressed simply supported box girder Prestressed concrete box girder bridge
Prefabrication tooling drawing of post tensioned prestressed concrete simply supported box girder (double track)

The beam yard drawings of a passenger dedicated line include a series of design drawings of beam making station, such as plan, requisition map, formwork drawing, steam curing shed, etc.

Topic: Prestressed simply supported box girder Post tensioned prestressed box girder Prefabrication of prestressed concrete box girder
Design drawing of 50m prestressed concrete simply supported T-beam of bridge

Data List 50m T beam expansion end beam end and anchor sealing reinforcement structure 50m T beam flange plate reinforcement structure 50m T beam diaphragm reinforcement structure 50m T beam beam rib reinforcement structure 50m T beam pier top continuous structure 50m T beam positive bending moment prestressed tendon layout 50m T beam general structure bridge type diagram

Topic: Prestressed concrete simply supported t-beam Concrete simply supported T-beam Prestressed t-beam
Construction Scheme for Left Side of a Prestressed Concrete Simply Supported Hollow Slab Bridge
Construction Scheme for the Left Side of a Prestressed Concrete Simply Supported Hollow Slab Bridge Construction Scheme for the Left Side of a Prestressed Concrete Simply Supported Hollow Slab Bridge

Topic: Prestressed concrete hollow slab bridge Construction scheme of prestressed concrete slab bridge Construction Scheme of Prestressed Hollow Slab Bridge
Structural Drawing of Expansion Joint of Prestressed Concrete Simply Supported Hollow Slab Bridge
This data is the structural drawing of expansion joint of prestressed concrete simply supported hollow slab bridge. The drawings include: plan, elevation, side view, etc. The design is accurate and the content is detailed, which can be downloaded for reference by netizens.

Topic: Prestressed concrete simply supported hollow slab Prestressed hollow slab Atlas of prestressed hollow slab
Design scheme of 20 m span post tensioned prestressed concrete beam in henan province
Including anchor plate, clip horn type backing plate (steel casting, finished product) and spiral reinforcement. The supporting clip is a three piece straight seam clip. If diagonal seam clip is used, the corner direction includes anchor plate, clip horn type backing plate (steel casting, finished product) and spiral reinforcement. The supporting clip is a three piece straight seam clip, If diagonal seam clips are used, the corner direction shall be opposite to the twisting direction (generally left direction) of the steel strand. It is supplied by a prestressed limited liability company in Kaifeng.

Topic: prestressed concrete Construction scheme of prestressed concrete Post tensioned prestressed concrete construction
Construction scheme of 20 m span post tensioned prestressed concrete beam in Nanjing
1 The project is a frame structure, with a reasonable service life of 50 years. The safety level of the building structure is Level II, and the seismic fortification category of the building is Class C, which is based on the seismic fortification of seven degrees. The seismic fortification level of the frame structure is Level III.

Topic: Construction scheme of prestressed concrete beam prestressed concrete Calculation sheet of prestressed concrete beam
Detail drawing of Grade A (side plate) node structure of a 20m prestressed concrete hollow slab
This project is a detailed structural drawing of a 20m prestressed concrete hollow slab Grade A (side slab) node, including cross section, elevation, plan, etc. The content of the drawing is complete, clear and precise, and designers are welcome to download and use it.

Topic: Prestressed concrete hollow slab Detailed drawing of prestressed concrete structure Atlas of prestressed hollow slab
Project organization scheme of 20 m span post tensioned prestressed concrete beam in Henan
The project is a frame structure with a reasonable service life of 50 years. The safety level of the building structure is Level II, and the seismic fortification category of the building is Class C, which is based on the seismic fortification of seven degrees. The seismic fortification level of the frame structure is Level III.

Topic: Construction scheme of prestressed concrete beam prestressed concrete Calculation sheet of prestressed concrete beam