Cad construction drawing for cast-in-place box girder support design of extra large interchange (11 sheets)

Uploaded on: 2020-03-03 10:11:15

zero

5 points

B Ramp Bridge: the bridge center stake number BK0 ＋ 697.5 has a span of 3 × (4 × 20)+4 × 25+2 × (27+30+27)+2 × (3 × 19.5)+2 × (3 × 40) m PC simply supported T beam and PC continuous cast-in-place box beam. The bridge has a total length of 868.5m and a deck width of 10.5m. The bridge overpasses Ramp A bridge and the main line of Shenyang Haikou Expressway. This bridge is located on the circular curve with R=280 and R=2000 and the connected transition curve. The prestressed cast-in-place continuous box girder of the whole bridge has a total of 5 pairs of 16 holes, all of which are double box and double chamber prestressed continuous box girders. The longitudinal and transverse slopes of the bridge deck are jointly adjusted by the thickness of the capping beam, abutment cap transverse slope and bridge deck pavement, and the transverse gradient is 0.07% - 6%. The cast-in-place pier is 12.2m to 17.3m high. C ramp bridge: the bridge center chainage is CK0+649.478, the bridge span is (4 × 25+5 × 25+5 × 20+4 × 20) m PC continuous T-beam+(30.8+40+18.2+21) m PC continuous cast-in-place box beam+(4 × 20+4 × 25+3 × 25) m PC continuous T-beam, the bridge width is 13 m, the total length of the bridge is 773.5 m, and it spans the main line of Shenyang Haikou Expressway. This bridge is located on the circular curve and transition curve section. Most piers and abutments are set along the normal direction of the design line, and 21 # and 22 # piers are arranged obliquely. The Wulian 110m Shenyang Haikou Expressway is a prestressed continuous box girder with the same bridge width, 13m wide, and the most unfavorable clearance under the second span bridge is 5.63m.

CAD construction drawing for cast-in-place box girder support design of super large interchange (11 sheets) - Figure 1

CAD construction drawing for cast-in-place box girder support design of super large interchange (11 sheets) - Figure 2

CAD construction drawing for cast-in-place box girder support design of super large interchange (11 sheets) - Figure 3

CAD construction drawing for cast-in-place box girder support design of super large interchange (11 sheets) - Figure 4

CAD construction drawing for cast-in-place box girder support design of extra large interchange (11 sheets) - Figure 5

Click to download the source file now

Special statement: This material belongs to the sharing uploaded by users Downloaded content, only for learning, not for commercial use. If there is any copyright problem, please timely contact Station delete!

Collection

WeChat code scanning and sharing

Click to share

Related recommendations

Design and construction calculation of cast-in-place box girder support
1. The main bridge adopts the full scaffold pouring construction method, and the door openings are set up in the traffic lanes on each side of the expressway to ensure the normal traffic requirements of the expressway. Support and door opening erection: WDJ bowl shaped steel pipe is used for side span, and door opening shall be erected on expressway for road crossing construction. According to the requirements of Clause 402.03 (Add Clause 6) of the Special Bidding Document, the traffic requirements of Jiqing Expressway shall be fully considered in the design of the main bridge support of the bridge spanning Jiqing Expressway. Two traffic lanes shall be set on each side, with a clear width of not less than 7.5 meters and a clear height of not less than 5 meters. The door opening on each side is designed to have a clear width of 7.5m and a clear height of 5.2m. The door opening buttress adopts D530mm steel pipe column with a central spacing of 2.58m; The lintel at the top of the door opening is made of 35 * 35 HW steel, and the sleeper beam of HW steel is made of 32c I-steel (2 pieces side by side). Two rows of D530 steel pipe columns (middle buttress) are set in the central separator of the expressway for the portal buttress, and one row of steel pipe columns (side buttress) is set in the hard shoulder.

Topic: Fire box design Construction of cast-in-place cover plate Construction of cast-in-place stairs
[Xiamen] Design and construction scheme of cast-in-place box girder formwork and support (CCCC)
The core area of Xiamen XX City covers an area of about 4.64 square kilometers. The specific boundary is from the southeast to the planned shoreline of XX, from Shenyang Haikou Expressway in the north to Jiutian Lake and Xingjin Road in the west. The core area is arranged with a "three horizontal and three vertical" system, of which the three vertical are XX, XX and XX roads; Three horizontals: XX Avenue, XX Road, XX Road. XX Road crosses XX between Heyuan Road and Guihua No. 1 Road, and the planned water system is about 566m wide. According to the planned XX revetment line, the stake number of XX Bridge is K2+034.44 ～ K2+579.56, crossing XX, with a total length of 545.12 meters (including the approach slab at the bridge head), and the main structure of the bridge is 520 meters long. The bridge is arranged in two widths, with a full width of 32m=4.5m (sidewalk+facility belt)+10.5m (carriageway)+2m (central dividing belt)+10.5m (carriageway)+4.5m (sidewalk+facility belt). Each bridge is arranged in five units as follows: (3 × 30m)+(4 × 30m)+(30m+40m+30m)+(4 × 30m)+(3 × 30m). The cross slope of the bridge deck roadway is 1.5% outward, and the cross slope of the sidewalk is 2% inward. The cross slope of the carriageway is formed by the box girder as a whole, and the cross slope of the pedestrian way is formed by the buttress of the sidewalk slab. The mileage range of XX Bridge is K2+034.44 ～ K2+579.56, with a total length of 545.12m. There are 32 piers and 4 abutments, 108 cast-in-place piles, and 10 pairs of box girders in the north and south.

Topic: CCCC construction scheme template Formwork for cast-in-place construction scheme of support Construction scheme of cast-in-place formwork support
Design Drawing of Bailey Sheet Support for 20m Cast in situ Box Girder

This data is the design and construction drawing of the 20 meter cast-in-place box girder support of the bridge project. The design is accurate and the drawing is complete, which is worthy of reference.

　　......

Designed in 2015, there are 4 CAD design drawings in total.

Topic: Support scheme of cast-in-place box girder Cast in situ box girder Support design
Design of 80 cast-in-place box girder support for Chishui River Tourist Highway
Bailey film can accelerate the construction progress, with high safety factor and simple construction, which can be referred to.

Topic: Support scheme of cast-in-place box girder Cast in situ box girder Design of cast-in-place box girder
Special safety scheme for cast-in-place box girder of main bridge of an interchange project
The special safety scheme for cast-in-place box girder of the main bridge of an interchange project is rich and detailed, and can be downloaded for reference and study by netizens.

Topic: Special construction scheme for cast-in-place bridge Flood control safety scheme Safety scheme and special construction scheme
Design Drawing of Cast in situ Support for Continuous Beam of xx Super Major Bridge Turnout
The span arrangement of turnout continuous beam of xx extra large bridge is (32.6+3x32.7+32.6) m prestressed concrete continuous beam, totaling 163.3m. The beam body is a single box single room single box double room, equal height, variable cross-section structure, and the beam height is 3.0m. The cast-in-place support method of steel pipe pile and Bailey beam shall be adopted for pouring, and the pouring shall be completed in two sections A and B. Cast in situ support adopts steel pipe pile+Bailey beam column type. The lower part of the support is made of spiral steel pipes as columns, and the top of the column is made of I-steel as the main beam. The upper part of the main beam is made of single-layer ordinary Bailey pieces as the longitudinal beam. The longitudinal beam is paved with I-beam as distribution beam. Square timber is paved on the distribution beam as the secondary distribution beam. Bamboo plywood is laid on the square timber as the bottom formwork.

Topic: Yellow River Bridge Drawing of Liaohe Super Major Bridge Shanghai Chengdu West Sidu River Bridge
Construction scheme of cast-in-place beam support for z interchange
The main line of xx Road Interchange in this bid section is 462m long, with a total of four connected 22 spans. The span combination is (17.5m+5 × 22m+17.5m)+(17.5m+2 × 22m+25m+19m)+(2 × 19m+22m+25m+17.5m)+(17.5m+3 × 22m+17.5m); The bridge width is 22.5m~43.16m, and the bridge shape is single box with multiple chambers. The standard beam shape of the bridge is single box with three chambers. The flange plate is 2.5m wide, and the beam body is 1.4m high. The beam body is a partially prestressed Class A member, which is provided with a reinforced concrete anti-collision barrier and a handrail. The shallow embedded Em-80 expansion joint is used for the expansion joint. The bridge deck is paved with steel fiber waterproof concrete and asphalt pavement. According to the existing ground elevation and bridge design elevation, the amount of main line bridge support is about 70000 cubic meters. The second S9~S10 of the main line bridge spans the existing xx line railway, and it is necessary to reserve the clearance channel of xx railway single line by using φ 400mm steel pipe overhead (Bailey frame). The construction period of this project is short, and the contract period is 8 months. Due to the influence of underground pipelines and high-voltage wires at the construction site, the construction period has been delayed by about one and a half months. In order to ensure the contract period, our department plans to input four sets of formwork and support materials at one time.

Topic: Special construction scheme for interchange Construction Scheme of Interchange Project Construction Scheme of Flyover Bridge
Construction Scheme for Cast in situ Box Girder of Wucun Separated Flyover by Support Method
The starting mileage of Wucun Separation Flyover: left line ZK46+248.97-ZK46+325.03, with a total length of 76.06m; Right line YK46+237.47-YK46+313.53, with a total length of 76.06m. It is located in Village 5, Shigou Town, Sihui City.

Topic: Special construction scheme for box girder support Construction scheme of cast-in-place box girder support formwork Formwork of cast-in-place box girder support construction scheme
Design of cast-in-place scheme of box girder pipe buckle support
The cast-in-place scheme of box girder pipe buckle bracket is accurate in design and detailed in content, which can be downloaded for reference by netizens.

Topic: Support scheme of cast-in-place box girder Cast in situ box girder Cast in situ support
Special safety scheme for cast-in-place box girder of main line bridge of an interchange project in Shandong/
In order to strengthen the safety management during the construction of cast-in-place box girder of the temporary main line bridge, control the major hazard sources in the construction, eliminate and reduce construction safety accidents, and ensure the safety of staff and property, the following special construction scheme for the safety of cast-in-place box girder of the main line bridge is prepared according to the actual situation of the construction of cast-in-place box girder of the main line bridge.

Topic: Special construction scheme for cast-in-place beam formwork of bridge Flood control safety scheme Safety construction scheme of cast-in-place beam
Special safety scheme for cast-in-place box girder of main line bridge of an interchange project in Shandong
3. K193+987.7 main line bridge (the main line spans 342 Provincial Highway), the bridge deck is widened, and the superstructure is 30+40+30+20+20 (intersection angle 100.8 °) m cast-in-place prestressed concrete continuous box girder; The construction is carried out as a unit, and the substructure adopts column pier, ribbed slab platform and pile foundation.

Topic: Special construction scheme for cast-in-place bridge Flood control safety scheme Safety scheme and special construction scheme
Safety Case of Cast in situ Box Girder of Main Line Bridge of an Interchange Project in Shandong
K193+987.7 main line bridge (the main line spans 342 Provincial Highway), the bridge deck is widened, and the superstructure is 30+40+30+20+20 (intersection angle 100.8 °) m cast-in-place prestressed concrete continuous box girder; The construction is carried out as a unit, and the substructure adopts column pier, ribbed slab platform and pile foundation.

Topic: Project handover data Foundation treatment of cast-in-place beam Cast in situ beam construction contract
Technical disclosure of cast-in-place beam construction of interchange
（1） According to the requirements of the construction period and the actual situation on site, Taiyuan Branch plans to use three sets of bowl shaped scaffolding to meet the construction requirements. The specific construction sequence is as follows: (1) The seventh link on the left side of K136+525 main bridge, the sixth link on the left side of K136+525 main bridge, the first link on C ramp bridge, the second link on C ramp bridge, the fourth link on B ramp bridge, the third link on B ramp bridge The fifth unit of B ramp bridge, a total of seven units share a set of scaffolding. (2) The seventh unit of the right side of the main bridge at K136+525, the sixth unit of the left side of the main bridge at K136+525, the first unit of the D-ramp bridge, the second unit of the D-ramp bridge, the first unit of the H-ramp bridge, the second unit of the H-ramp bridge, and the eighth unit of the A-ramp bridge, a total of seven units share a set of scaffolding. (3) The sixth unit of C ramp bridge, the fourth unit of the left part of k136+060 bridge, the third unit of the left part of k136+060 bridge, the third unit of the right part of k136+060 bridge, the second unit of the right part of k136+060 bridge, the second unit of the left part of k136+060 bridge, the first unit of the left part of k136+060 bridge, and the first unit of the left part of k136+060 bridge, a total of eight units share a set of scaffolding.

Topic: Basis for construction technical disclosure Construction technical disclosure shall be conducted by Technical disclosure of elevator construction
Design of cast-in-place formwork and support for an overpass
The cast-in-place construction of bridges is an ancient construction method. Because the construction requires a large number of formwork supports, it is generally only used in small span bridges or remote areas with inconvenient traffic [1].

Topic: Fire protection design of overpass Construction Contract of Flyover Dadukou Yingbin Interchange
Cast in situ continuous box girder scheme and support calculation
Dongguqiu Third Bridge is a 6 * 16m long cast-in-place reinforced concrete continuous box girder bridge with single box and double rooms. This bridge is located on the second reverse transition curve, and the common tangent point of the reverse curve is at K30+071.673. The longitudinal slope on the bridge is - 2.5%, and the right side of the whole bridge in the first, second and third bridge openings is widened to K30+071.673, with the maximum widening of 54.7cm; Other bridge openings are not widened, so 6 * 16m cast-in-place box girder is adopted, with the starting and ending chainages of K30+033.46-K30+130.54, the bridge center chainage of K30+082, and the whole bridge length of 97.68m.

Topic: Cast in situ concrete construction scheme of continuous beam Specification for cast-in-place beam full support Construction scheme for cast-in-place beam of bridge support
Removal scheme of cast-in-place box girder full support
The XX Project of Provincial Highway is located in XX District of XX City, starting from the grade crossing of XX Line of 03 Provincial Highway and XX National Highway in the south, and ending at 250 meters north of the starting point of XX Class I Highway. The starting and ending stakes of the line are K0+000-K6+866.452, with a total length of 6.866 km. The viaduct is set from the north of XX Road to XX Section (K3+018.3-K6+231.4), with a length of 3.213km. The section to the south of XX Road is a ground road. XX5 rivers are equipped with 5 medium and small bridges. There are 16 grade crossings.

Topic: Specification for cast-in-place beam full support Cast in situ beam construction with full house support method Safety construction scheme for cast-in-place full support
Cast in situ box girder full support scheme (final)
Xiaoweijiagou Middle Bridge starts and ends at K99+069 ～ K99+163. It is designed as 4-22m prestressed continuous box girder with a width of 9m and a length of 94m. The calculation span is 4 × 22m, and the distance from the center line of the side support to the beam end is 0 5m, the transverse center distance of 0 # and 4 # abutment side bearings is 4.85m and 4.5m respectively, and the maximum transverse center distance of the middle bearing is 4.80m. The top width of box girder is 9.0m, and the bottom width of box girder is 5.5m. The thickness of the top plate is 20-50 cm, the thickness of the web plate is 40-80 cm, and the thickness of the bottom plate is 25-50 cm. The whole bridge is provided with two end beams at the end fulcrum and three middle beams at the middle fulcrum. The thickness of the end fulcrum end beam is 100cm, and the thickness of the middle beam is 150cm. Cast in situ construction with full support method.

Topic: Specification for cast-in-place beam full support Cast in situ beam construction with full house support method Safety construction scheme for cast-in-place full support
Full support of cast-in-place continuous box girder of a main bridge
The superstructure of 11~17 # piers of the bridge is a 50m+6 × 80m+50m eight hole one connected three-way prestressed concrete continuous box girder. The main pier is a V-shaped pier structure, and the V-shaped pier and the box girder are cast integrally. One continuous box girder is 580m long, divided into two pieces on the left and right. The top of the girder is located on a two-way slope with a radius of 20000m and a longitudinal slope of 1.36%.

Topic: Technical disclosure of cast-in-place box girder construction with full support Specification for cast-in-place beam full support Full support specification
Calculation of cast-in-place box girder full support scheme
This data is the calculation of cast-in-place box girder full support scheme, which is detailed and can be used for reference.

Topic: Specification for cast-in-place beam full support Cast in situ beam construction with full house support method Safety construction scheme for cast-in-place full support
Construction method of cast-in-place box girder with tower support
All supports shall be erected within the scope of the bridge. The support shall be a continuous concrete box girder bearing support system. The distribution beam and wing plate support shall be erected above the support, and the bottom formwork shall be laid. After the support preloading is completed to eliminate the inelastic deformation, the reinforcement and internal formwork construction shall be carried out. Finally, the concrete shall be poured, the support shall be removed and moved forward, and the construction of the next section shall be carried out until the completion of the box girder construction······ preface; Construction method characteristics; Scope of application; Process principle; Construction process flow and operation points; Allocation of materials and equipment resources; Safety measures...... 12 pages in total

Topic: Construction method of cast-in-place box girder Construction scheme of cast-in-place box girder support formwork Special construction scheme for cast-in-place box girder of support
Construction Scheme for Prefabricated Box Girder of an Interchange
An interchange bridge (5-20M) crosses XXX National Highway, and its superstructure is prestressed reinforced concrete box girder, with a total of 5 × 10=50 pieces. The bridge is 5m high, divided into left and right parts, and a single bridge is 15m wide. Among them, 3 # pier is located on XXX National Highway, so the construction must be disconnected, and a service road has been built between the new and old 208 National Highway to facilitate the normal passage of vehicles. According to the calculation, the weight of each side beam of prestressed box girder is 55T, and the weight of center beam is 50T. For single hoisting, a 150t crawler crane must be used, supplemented by a 50t crawler crane.

Topic: Construction Scheme for Box Girder Prefabrication in Rainy Season Special safety construction scheme for precast box girder Construction Scheme for Transportation and Installation of Precast Box Girder
Design Calculation Sheet for 80m Cast in situ Box Girder Support of Chishui River Tourist Highway
Simple, easy to learn and exchange good things. Thank you for putting forward requirements and confused suggestions

Topic: Calculation of cast-in-place foundation treatment of support Support calculation sheet Yuanhou Ferry Chishui
Special safety organization plan for cast-in-place box girder of main line bridge of an interchange project in Shandong
Control the major hazard sources existing in the construction, eliminate and reduce construction safety accidents, and ensure the safety of workers' lives and property. According to the actual situation of the cast-in-place box girder construction of the main line bridge, the following special construction scheme for the safety of cast-in-place box girder of the main line bridge is prepared.

Topic: Special construction scheme for cast-in-place beam formwork of bridge Flood control safety scheme Safety construction scheme of cast-in-place beam
Special safety scheme for cast-in-place box girder of main line bridge of an interchange project in Shandong
1. The xxx interchange project is set up to connect the provincial highway 342 (xx road) and xx expressway. It is located between xx zhuang and xxx in Hedong District. It is the main entrance and exit for vehicles to get on and off the expressway in the urban area of xx and plays an important role in the economic development of xx city. 2. The terrain within the interchange area is relatively flat. The loudspeaker on one side of Provincial Highway 342 is affected by the buildings on both sides. There are gas stations, sizing chemical plants and other facilities. Provincial Highway 342 is a two-way four lane first-class highway with a full width of 25.5m, a design speed of 80km/h, and an asphalt concrete pavement. 3. K193+987.7 main line bridge (the main line spans 342 Provincial Highway), the bridge deck is widened, and the superstructure is 30+40+30+20+20 (intersection angle 100.8 °) m cast-in-place prestressed concrete continuous box girder; The construction is carried out as a unit, and the substructure adopts column pier, ribbed slab platform and pile foundation.

Topic: Special construction scheme for cast-in-place bridge Flood control safety scheme Safety scheme and special construction scheme
Special Safety Plan for Cast in situ Box Girder of Main Line Bridge of an Interchange Project in Shandong. doc

Topic: Special construction scheme for cast-in-place beam formwork of bridge Flood control safety scheme Safety construction scheme of cast-in-place beam
Special construction document 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, and the web is 45cm thick, and the thickness of the flange plate is thickened to 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 Road construction traffic organization construction scheme Special construction scheme for traffic organization
Detailed Construction Drawing of Separated Flyover Support Cast in situ Continuous Box Girder
This document is the detailed construction drawing of cast-in-place continuous box girder of separated overpass support. The drawings include: plan, section, elevation, etc. The design is accurate and the content is detailed, which can be downloaded for reference by netizens.

Topic: Flyover Cast in situ continuous box girder Separate road
Construction Scheme of Cast in situ Beam Support of Main Line Bridge of an Interchange/
After the erection of the support, before the construction of the concrete box girder, the support shall be preloaded with a load equal to 1.2 times the dead weight of the box girder to check the bearing capacity of the support, reduce and eliminate the inelastic deformation of the support system and the settlement of the foundation. The support ballast material shall be sand bags (or steel) of corresponding weight, and the number of sand bags shall be reasonably arranged according to the structural form of box girder (see the ballast layout). After the non elastic deformation of the support is eliminated and the compression is stable, the elastic deformation is measured, that is, the support weight construction is completed. After removing the ballast sand bag, set the reserved camber for the support construction, adjust the elevation of the support bottom formwork, and start the box girder construction.

Topic: Construction Scheme of Flyover Bridge Construction scheme for cast-in-place beam of bridge support Special construction scheme for cast-in-place beam of support
Construction Scheme of Cast in situ Beam Support of Main Line Bridge of an Interchange
After the erection of the support, before the construction of the concrete box girder, the support shall be preloaded with a load equal to 1.2 times the dead weight of the box girder to check the bearing capacity of the support, reduce and eliminate the inelastic deformation of the support system and the settlement of the foundation.

Topic: Construction Scheme of Flyover Bridge Construction Contract of Flyover Construction scheme for cast-in-place beam of bridge support
Construction Scheme for Cast in situ Beam Support of Main Line Bridge of Interchange
After the erection of the support, before the construction of the concrete box girder, the support shall be preloaded with a load equal to 1.2 times the dead weight of the box girder to check the bearing capacity of the support, reduce and eliminate the inelastic deformation of the support system and the settlement of the foundation. The support ballast material shall be sand bags (or steel) of corresponding weight, and the number of sand bags shall be reasonably arranged according to the structural form of box girder (see the ballast layout). After the non elastic deformation of the support is eliminated and the compression is stable, the elastic deformation is measured, that is, the support weight construction is completed. After removing the ballast sand bag, set the reserved camber for the support construction, adjust the elevation of the support bottom formwork, and start the box girder construction.

Topic: Special construction scheme for interchange Construction Scheme of Interchange Project Construction Scheme of Flyover Bridge
Construction organization scheme for cast-in-place beam support of main line bridge of an interchange
The main line of xx Road Interchange in this bid section is 462m long, with a total of four connected 22 spans. The span combination is (17.5m+5 × 22m+17.5m)+(17.5m+2 × 22m+25m+19m)+(2 × 19m+22m+25m+17.5m)+(17.5m+3 × 22m+17.5m); The bridge width is 22.5m~43.16m, and the bridge shape is single box with multiple chambers. The standard beam shape of the bridge is single box with three chambers. The flange plate is 2.5m wide, and the beam body is 1.4m high. The beam body is a partially prestressed Class A member, which is provided with a reinforced concrete anti-collision barrier and a handrail. The shallow embedded Em-80 expansion joint is used for the expansion joint, and the bridge deck is paved with steel fiber waterproof concrete and asphalt pavement. According to the existing ground elevation and bridge design elevation, the amount of main line bridge support is about 70000 cubic meters. The second S9~S10 of the main line bridge spans the existing xx line railway, and it is necessary to reserve the clearance channel of xx railway single line by using φ 400mm steel pipe overhead (Bailey frame). The construction period of this project is short, and the contract period is 8 months. Due to the influence of underground pipelines and high-voltage wires at the construction site, the construction period has been delayed by about one and a half months. In order to ensure the contract period, our department plans to input four sets of formwork and support materials at one time.

Topic: Construction Scheme of Flyover Bridge Construction Contract of Flyover Construction scheme for cast-in-place beam of bridge support
Construction Scheme of Cast in situ Beam Support of Main Line Bridge of an Interchange
After the erection of the support, before the construction of the concrete box girder, the support shall be preloaded with a load equal to 1.2 times the dead weight of the box girder to check the bearing capacity of the support, reduce and eliminate the inelastic deformation of the support system and the settlement of the foundation. The support ballast material shall be sand bags (or steel) of corresponding weight, and the number of sand bags shall be reasonably arranged according to the structural form of box girder (see the ballast layout). After the non elastic deformation of the support is eliminated and the compression is stable, the elastic deformation is measured, that is, the support weight construction is completed. After removing the ballast sand bag, set the reserved camber for the support construction, adjust the elevation of the support bottom formwork, and start the box girder construction.

Topic: Construction Scheme of Flyover Bridge Construction Contract of Flyover Construction scheme for cast-in-place beam of bridge support
Hongmiao Interchange Construction plans Design (20m constant section box girder)

Detailed interchange construction drawing design, including change design during construction, with B C. D. E Four ramps, more than 100 drawings

Topic: Interchange Box girder bridge Construction of box girder bridge
Design calculation sheet of cast-in-place box girder full support
There are 44 cast-in-place box girders in this section, with various types, spans and bridge deck widths. The height from the bottom of the girder to the ground is not appropriate, and the net height is generally about 6-24m. As the beam height is 1.80 m, the design calculation of full hall support is based on the example of 4-30 m from the bottom of the beam to the ground. The rest of cast-in-place beam supports can be added to the construction design of full hall support one by one according to the design calculation data, the span, section size and clear height of each design document. The full scaffold is arranged at 0.6m spacing along the longitudinal direction of the bridge; The flange plates of the cross section are generally arranged at a spacing of 0.9m, and the B-B, C-C, D-D sections and the range of each mid span partition wall are arranged at 0.6m; The web range of A-A section is 0.6m, and its bottom plate range can be 0.9m. The step distance is 1.2m. The top of the support is provided with a jacking. On the jacking, a 120 * 120mm transverse distribution beam (0.6m spacing) is provided with an 80 * 80mm longitudinal distribution beam. The bottom plate and top plate of the flange plate and A-A panel can be 0.3m, and the rest are 0.2m. The bottom formwork is made of 18mm bamboo plywood.

Topic: Specification for cast-in-place beam full support Support calculation sheet Beam calculation sheet
Special construction organization scheme for safety of cast-in-place box girder of main line bridge of an interchange project in Shandong
The importance of this project is to establish a safety and environmental protection leading group for xxx interchange area. The team leader is the project manager, the deputy team leader is the project chief engineer, the structural engineer, and the members are the safety engineer, the construction team leader, the material section chief and other relevant personnel.

Topic: Safety scheme and special construction scheme Special construction scheme for interchange project Tunnel construction safety scheme
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, and the web is 45cm thick, and the thickness of the flange plate is thickened to 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
Construction Scheme for Cast in situ Beam Support of Main Line Bridge of an Interchange.doc

Topic: Construction Scheme of Flyover Bridge Construction scheme for cast-in-place beam of bridge support Special construction scheme for cast-in-place beam of support
Supervision Rules for Cast in situ Box Girder of Full Span Support of the Third Line Super Major Bridge of Gangga Station
The third line super bridge of Gangga Station is located in Zharao Township, Milin County, Nyingchi Prefecture, Tibet. This bridge passes through Doka Village. This bridge is located in Gangga Station and is a three line bridge. The distance between the third line and the second line (main line) is 5.0m, and the distance between the second line (main line) and the first line is 5.0m~4.44m. Provincial Highway 306 passes through 250m on the right side of the bridge. The road is about 7m wide. The traffic is convenient. The whole bridge is mostly used for the plant area of Hongwei Forest Farm. The mileage of the third line super major bridge at Gangga Station is DK408+275.65 ～ DK409+108.85, with a total length of 833.2m and a center mileage of DK408+692.25

Topic: Key points of super large bridge construction Specification for cast-in-place beam full support Model construction scheme for super large bridge
Design of cast-in-place construction scheme of bridge overpass support
The cast-in-situ construction scheme of bridge overpass supports is accurate in design and detailed in content, which can be downloaded for reference by netizens.

Topic: Cast in situ support Construction scheme of cast-in-place arch bridge support Support scheme of cast-in-place box girder
Construction scheme of cast-in-place box girder with full support
This project is the construction of cast-in-situ box girders of the first to fifth upper structures of LK15+894 Jianhe Super Major Bridge in Guanxi Interchange. The starting pile number is K15+348.00, and the ending pile number of cast-in-situ box girders is K15+800.00, with a total length of 452m. The cast-in-place section of this bridge needs to cross Interchange A Ramp, Laojian River and Lingang Class I Road in turn.

Topic: Special construction scheme for full support of box girder Current construction scheme of high-speed support Construction scheme of tunnel full support