Construction drawing of reinforced concrete slab arch bridge (famous courtyard design)

1. General description of construction drawing design 2. Table of main engineering materials 3. Plan of bridge site 4. General layout of bridge 5. Table of pile foundation coordinates and elevation of characteristic points of bridge deck 6. Structural drawing of hollow slab beam 7. Reinforcement layout of hollow slab beam 8. Structural drawing of abutment cap reinforcement 9. General structural drawing of abutment 10 Structural drawing of abutment cap reinforcement 11, structural drawing of pier cap reinforcement 12, general structural drawing of pier 13, structural drawing of bearing and pad stone 14, structural drawing of abutment pile foundation reinforcement 15, structural drawing of pier pile foundation reinforcement 16, structural drawing of approach slab 17, structural drawing of roadway expansion joint 18, structural drawing of steel plate expansion joint 19, deck continuity Pavement structure drawing 20, sidewalk structure drawing 21, seismic anchor bolt structure drawing 22, handrail structure drawing (II) technical standard 1 Design load: urban level B. 2. River channel requirements under the bridge: the river channel requirements shall be planned according to the upper opening width of 30. 3. Seismic load: 7 degrees. Earthquake action: seismic peak acceleration 0.1g. 4. Design reference period: 100 years. 5. Flood frequency: 1/50. 6. Design safety level: Level II. 3、 Design key points (I) Bridge deck width The distribution of the full bridge width is: 0.3m (railing)+5.7m (sidewalk)+16m (roadway)+5.7m (sidewalk)+0.3m (railing)=28m. （2） Shazhou East River Bridge is arranged as a bridge type. According to the requirements of the planned river channel width and the current river channel retaining wall, a simple supported plate girder bridge with three spans of 8+10+8m is adopted. The normal direction of the bridge is orthogonal to the centerline of the river, and the center stake number is K0+795.27. （3） Structural design superstructure: 8+10+8m reinforced concrete hollow slab beam is adopted, and the standard span of slab beam is 8m and 10m. The beam length is 7.96m and 9.96m respectively, and the beam height is 0.50m. There are 78 middle plates and 6 side plates in total. Substructure: abutment: pile column abutment, the pile foundation adopts the? 100cm bored cast-in-place pile; Pier: pile column pier, and the pile foundation adopts? 100cm bored cast-in-place pile.

1. Reinforced concrete slab arch, calculated span L=20.0m, bridge width B=10.0m; 2. Bridge type: the superstructure is reinforced concrete slab arch. The height of the main arch ring is 60cm, and the span loss ratio is 1:8. The main arch ring is arc line. The substructure is pile group foundation, bored pile, and the pile diameter is φ 100cm; 3. Design load: crowd: 4.5KN/m2;

1、 Technical standards and design specifications

1) Design load: Class II highway.

2) Bridge type: reinforced concrete slab arch bridge with 36.90m span and 1/7.3 net rise span ratio.

3) Deck width: 0.5m (anti-collision railing)+6.0m+0.5m (anti-collision railing).

4) Bridge length: 46.28m.

5) Longitudinal slope of bridge deck: no longitudinal slope of bridge deck.

6) Cross slope of bridge deck: two-way 1.5%.  

2. Applicable specifications:

1) Standard of the Ministry of Communications of the People's Republic of China General Code for Design of Highway Bridges and Culverts (JTG D60-2004).

2) Standard of the Ministry of Communications of the People's Republic of China, Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts (JTJ041-2000).

3) Technical Standards for Highway Engineering.

4) Technical Code for Construction of Highway Bridges and Culverts.

2、 Main materials

Pile foundation: C25 concrete

Cushion cap: C30 concrete

Main beam: C40 concrete

Arch ring: C40 concrete

Beam: C40 concrete

Approach slab: C30 concrete

Bridge deck pavement: C40 waterproof concrete

Rebar: R235 rebar, HRB335 rebar.

3、 Key points of design

1. This bridge is a slab arch bridge, whose abutment and arch seat are integrated, and the lower part adopts pile foundation, which is calculated according to the plane bar system finite element method.

2. The closing temperature of arch ring is 15 ℃, the maximum annual average temperature is 40 ℃, and the minimum annual average temperature is 0 ℃. Concrete shrinkage is calculated as - 20 ℃. The settlement is calculated based on the symmetrical horizontal displacement of the arch seat of 1cm.

This drawing is the structural construction drawing of a 16 meter span reinforced concrete arch bridge, including: bridge type layout, arch ring reinforcement layout, arch hinge structural reinforcement layout, abutment structural drawing, abutment pile reinforcement structural drawing, abutment foundation reinforcement layout, abutment anti slide reinforcement layout, stone railing design drawing, bridge decoration material drawing, etc.

Content Introduction I. Design Basis 1. General Code for Design of Highway Bridges and Culverts (JTJ021-89). 2. Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts (JTJ023-85). 3. Code for Design of Ground and Foundation of Highway Bridges and Culverts (JTJ024-85). 2、 Basic situation XX bridge is a new bridge with 2 × 0.55 (seat belt)+2 × 7.0m (traffic lane)+1.5m (median) widened by 8.1m at the inner side of XX1 bridge on XX highway. Our institute measured the bridge site at the end of June 1999, and measured that the starting and ending points of the old bridge are: K0+041.12~K0+134.67 (assuming the pile number); The starting and ending stake numbers of the newly widened part are: K0+060.39~K0+131.716, and its technical standards are: bridge floor clearance: net - 7+2 × 0.55m; design load: Grade 20 for automobiles; longitudinal slope of bridge floor for trailer - 100: 0%; Cross slope: the seismic cracking degree of 1.5% (one-way) bridge site is less than the specification requirements, and seismic fortification is not considered. 3、 Geological Conditions Party A has not provided the geological data of the bridge site, but there are obvious gneiss outcrops on both banks. The design requires that the bottom surface of the abutment foundation should be placed on a fresh rock surface with a bearing capacity of no less than 1Mpa. If the construction excavation fails to meet the bearing capacity required by the design after reaching the design elevation, the construction unit and Party A must notify the design unit to take measures to solve the problem. 4、 The newly widened part of the bridge type structure adopts cast-in-place reinforced concrete rib haunch plate rigid frame arch with a single hole clear span of 50m, and the rise span ratio is 1/8. The substructure adopts U-shaped abutment, and the foundation is open cut expanded foundation. The longitudinal slope of the bridge deck is flat slope, and 1.5% one-way cross slope is set horizontally. Five drainage pipes are set at the middle spacing (10m) of symmetrical spans outside the bridge deck. The total length of the bridge is 71.326m. The bottom of the solid web section of this rigid frame arch bridge is a secondary parabola, and the rest are straight members. The upper structure adopts the rib haunch plate supported in four directions. The top of the rib haunch plate is provided with a bridge deck pavement with a thickness of not less than 8cm (including 2cm asphalt surface treatment). 5、 Main material 1. Concrete: 40 # concrete is used for arch plate and transverse tie beam; 30 # concrete shall be used for haunch plate and cantilever plate (the arch plate shall be cast in situ, and the haunch plate and cantilever plate shall be prefabricated); Cast in situ 30 # waterproof concrete for bridge deck; The safety belt and handrail are made of 25 # concrete. 2. Reinforcement: Grade II reinforcement is used for main reinforcement, and Grade I reinforcement is used for other reinforcement. 6、 Construction key points 1. The arch segment and transverse tie beam of this bridge are constructed by integral cast-in-situ construction. The construction shall be carried out in a low temperature environment as far as possible, and the arch piece closing temperature should be less than 10 ℃. 2. The camber of the arch crown of this bridge is L/800, which is distributed as a secondary parabola within the solid web section, and varies as a straight line within the arch leg. The arch support during construction shall be set out according to the coordinates after setting the camber. 3. Bearing treatment: during the construction of abutment arch abutment concrete, a reserved groove with a depth of 30cm and a section size consistent with the size of the arch legs and diagonal braces shall be reserved according to the position of the arch legs and diagonal braces, and the reinforcement shall be embedded. When the arch legs and diagonal braces are constructed, the reinforcement of the arch legs and diagonal braces shall be welded with the embedded reinforcement, and then the concrete of the diagonal legs and diagonal braces shall be poured. The chord support adopts steel plate support. 4. Two expansion joints shall be set for the whole bridge, and the embedded parts of expansion joints shall be embedded during construction. General structural drawing of arch segment and transverse tie beam Layout of arch segment reinforcement Layout of transverse tie beam reinforcement

The drawing is designed for a well-known courtyard in China. The total length of the bridge is 49.06m. The plane of this bridge is located in the R-120m right skew circle curve, and the elevation is located on the vertical slope of -4.4190%. The superstructure of this bridge adopts 12+20+12m reinforced concrete cast-in-situ continuous box girder; The lower pier is single column pier, and the abutment is ribbed slab abutment. Bored cast-in-place pile foundation (pile diameter 8mm, 10mm, 16mm, 25mm) is adopted for the whole bridge pier foundation. D80 expansion joint and 8m long approach slab are set at 0 # and 3 # abutments of this bridge, and GYZF4 ^ 350 × 88mm rubber bearing is used as the bearing; 1. GYZ ^ 650 × 120mm rubber bearing is adopted for the top of 2 # pier. The foundation piles of this bridge are designed as rock socketed piles. This bridge spans local roads with an intersection angle of 47 ° 27 'and a clearance of 5.0m under the bridge.

The box girder is cast in situ in sections with full support. Each box chamber is equipped with a ^ 8cm vent hole on the upper part of the bottom plate and two webs every 3m or so, so that the air can form convection. This bridge is located in the right slightly circular curve section of R-120. The box girder is arranged according to the curve. The figure of section A-A in the figure is the theoretical value of the survey line processing. The box girder is made of C40 concrete, with the quantity of 218.1m

List of Data, Design Description Bill of Quantities, Standard Cross sectional Drawing 27m Span Layout Drawing 27m Span Main Arch Ring Vertical Coordinate Positioning Drawing 27m Span Main Arch Ring Reinforcement Structural Drawing 27m Span Arch Upper Transverse Wall Base Reinforcement Layout Drawing 27m Span Arch Upper Transverse Wall Reinforcement Layout Drawing 27m Span Solid Slab General Structural Drawing 27m Span Solid Slab Reinforcement Layout Drawing (I)~(IV) Layout of Reinforcement for 27m Span Deck Pavement General Structural Drawing of 27m Span Abutment Reinforcement Layout of 27m Span Arch Pedestal Reinforcement Layout of 27m Span Abutment Back Wall and Abutment Cap Reinforcement Layout of 27m Span Abutment Retaining Block Reinforcement Layout of 21.7m Span Bridge Layout of 21.7m Span Main Arch Ring Vertical Coordinate Positioning Drawing of 21.7m Span Main Arch Ring Reinforcement Structural Drawing of 21.7m Span Arch Upper Transverse Wall Foundation Reinforcement Layout of 21.7m Span Arch Upper Transverse Wall Reinforcement Layout of 21.7m Span Arch 21.7m General Structural Drawing of Span Solid Slab Rebar Layout of 21.7m Span Solid Slab (I)~(II) 21.7m Span Deck Pavement Reinforcement Arrangement Drawing 21.7m Span Abutment General Structure Drawing 21.7m Span Arch Pedestal Reinforcement Arrangement Drawing 21.7m Span Abutment Back Wall and Abutment Cap Reinforcement Arrangement Drawing 21.7m Span Abutment Retaining Block Reinforcement Arrangement Drawing Transverse Wall Retaining Block Reinforcement Arrangement Drawing Bridge Deck Continuous Reinforcement Arrangement Drawing Longitudinal Bridge Deck Continuous Reinforcement Arrangement Drawing Crash Barrier and Bridge Deck Drainage General Structure Drawing Crash Barrier Reinforcement Arrangement Drawing Extension Contraction Joint Installation Diagram General Structural Drawing of Approach Slab Reinforcement Layout of Approach Slab and Sleeper Beam

1. Reinforced concrete slab arch, calculated span L=20.0m, bridge width B=10.0m; 2. Bridge type: the superstructure is reinforced concrete slab arch. The height of the main arch ring is 60cm, and the span loss ratio is 1:8. The main arch ring is arc line. The substructure is pile group foundation, bored pile, and the pile diameter is φ 100cm; 3. Design load: crowd: 4.5KN/m2;

1. Reinforced concrete slab arch, calculated span L=20.0m, bridge width B=10.0m; 2. Bridge type: the superstructure is reinforced concrete slab arch. The height of the main arch ring is 60cm, and the span loss ratio is 1:8. The main arch ring is arc line. The substructure is pile group foundation, bored pile, and the pile diameter is φ 100cm; 3. Design load: crowd: 4.5KN/m2;

1. Reinforced concrete slab arch, calculated span L=20.0m, bridge width B=10.0m; 2. Bridge type: the superstructure is reinforced concrete slab arch. The height of the main arch ring is 60cm, and the span loss ratio is 1:8. The main arch ring is arc line. The substructure is pile group foundation, bored pile, and the pile diameter is φ 100cm; 3. Design load: crowd: 4.5KN/m2;

Moeller like D60 expansion joint is set at the abutment of this bridge, and the retaining wall outside the bridge is arranged along the route. The abutment adopts GYZF sliding plate bearing, and the continuous pier adopts GYZ? Rubber mounting

The plane of this bridge is located on the left partial circular curve of R-2718.985m, and the longitudinal plane is located on the vertical curve of R-30000m. Continuous box girder, the whole bridge is in one unit, and the substructure piers are cylindrical piers and pile foundations; U-shaped abutment and expanded foundation are adopted for the abutment. The left side of the superstructure of this bridge adopts 15 ＋ 2 × 20 ＋ 15m reinforced concrete continuous box girder, and the right side adopts 15 ＋ 3 × 20 ＋ 15m reinforced concrete. Moeller like D60 expansion joints are set at the abutment of this bridge, and the retaining wall outside the bridge is arranged along the route.