Light high-strength prefabricated assembled ribbed slab type bridge abutment and mounting method

Abstract

The invention discloses a light high-strength prefabricated assembled rib plate type bridge abutment and a mounting method. The light high-strength prefabricated assembled rib plate type bridge abutment comprises a bottom supporting platform; the two sets of rib plates are arranged, and the two sets of rib plates are symmetrically and fixedly connected to the top face of the bottom supporting table; the abutment cap shell is fixed to the top of the rib plate, the top face of the rib plate is fixedly connected with an I-shaped steel connecting piece, and the I-shaped steel connecting piece is inserted into the abutment cap shell and fixedly connected with a connecting steel bar; ear walls are symmetrically and fixedly connected to the two ends of the side face of the back wall, the back wall and the ear walls are integrally formed, and the outer side of the cap shell is fixed to the back wall; wherein the I-shaped steel connecting piece is fixed by pouring concrete after being inserted into the abutment cap shell. All the components can be prefabricated in a factory in advance. In a construction site, only simple splicing operation is needed, and the construction period is greatly shortened. Compared with a traditional cast-in-place construction mode, it is not needed to wait for concrete curing to reach the design strength, and a large amount of time is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge abutments, and in particular to a light-weight high-strength prefabricated assembled ribbed abutment and an installation method thereof. Background Art

[0002] Abutments are structures located at each end of a bridge, supporting the bridge's superstructure and connecting it to the embankment. Besides transferring the load of the bridge's superstructure to the foundation, they also serve to withstand the pressure of the fill behind the abutments, stabilize the roadbed at the bridgehead, and ensure a reliable and stable connection between the bridgehead and the bridge's upper tracks.

[0003] Traditional prefabricated assembled abutments rarely use bolt connections. Traditional wet joint construction still requires a certain amount of curing time after pouring, such as grouting sleeves and metal bellows. The process is complicated and the construction quality cannot be guaranteed. The construction period is long, the construction cost is high, and there are problems of environmental pollution.

[0004] Based on the above technical problems, the present invention provides a lightweight high-strength prefabricated assembled rib plate abutment and an installation method. Summary of the Invention

[0005] The purpose of the present invention is to provide a lightweight high-strength prefabricated assembled rib plate abutment and an installation method to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a lightweight, high-strength prefabricated assembled ribbed abutment, comprising:

[0007] Bottom support platform;

[0008] Ribs, wherein two groups of ribs are provided, and the two groups of ribs are symmetrically fixedly connected to the top surface of the bottom support platform;

[0009] A platform cap shell, the platform cap shell is fixed to the top of the rib plate, the top surface of the rib plate is fixedly connected with an I-beam connector, the I-beam connector is inserted into the platform cap shell and fixedly connected with a connecting steel bar;

[0010] A back wall, with ear walls symmetrically fixedly connected to both ends of the side of the back wall, the back wall and the ear walls are integrally formed, and the outer side of the table cap shell is fixed to the back wall;

[0011] Wherein, the I-beam connecting piece is inserted into the platform cap shell and then fixed by pouring concrete.

[0012] According to the lightweight high-strength prefabricated assembled rib-plate abutment provided by the present invention, the bottom support platform includes a pile foundation and a pedestal, the pile foundation and the pedestal are formed as one piece, the pile foundation is provided in several groups, the several groups of pile foundations are fixed on the bottom of the pedestal, and the rib plate is fixed on the top surface of the pedestal.

[0013] According to the lightweight high-strength prefabricated assembled rib-plate abutment provided by the present invention, a column groove is opened on the top surface of the abutment, and the rib plate is fixedly connected in the column groove.

[0014] According to the lightweight high-strength prefabricated assembled ribbed abutment provided by the present invention, the top surface of the ribbed abutment and the bottom surface of the abutment cap shell are bonded by high-strength adhesive.

[0015] According to the lightweight high-strength prefabricated assembled ribbed abutment provided by the present invention, a through hole is provided on the bottom surface of the abutment cap shell, and the I-beam connecting piece extends into the abutment cap shell through the through hole.

[0016] According to the lightweight high-strength prefabricated assembled ribbed abutment provided by the present invention, the side surface of the abutment cap shell and the back wall are fixed together by means of adhesive connection and bolt connection.

[0017] According to the lightweight high-strength prefabricated assembled ribbed abutment provided by the present invention, rubber gaskets are respectively provided between the bolts and the back wall and the abutment cap shell.

[0018] A method for installing a lightweight, high-strength prefabricated assembled ribbed abutment comprises the following steps:

[0019] Step 1: Place the bottom support platform;

[0020] At the location where the bottom support platform is installed, use excavators and forklifts to remove debris, stones, and vegetation obstacles on the ground to ensure that the ground is flat and solid. For weak foundations, replacement filling, compaction, or pile foundation treatment measures must be carried out according to design requirements to improve the foundation bearing capacity;

[0021] Based on the design coordinates and elevation of the abutment, use total stations and levels to accurately measure and lay out the lines; set control stakes around the installation location and mark them for calibration during subsequent installation;

[0022] Use a flatbed trailer to transport the bottom support platform from the prefabrication site to the installation location; during transportation, ensure that the bottom support platform is firmly fixed to prevent shaking and collision;

[0023] Use a crane to slowly lift the bottom support platform, move it above the installation location, and then lower it at a preset speed. During the lowering process, pay close attention to the position and posture of the bottom support platform, and use the fine-tuning function of the crane to ensure that it falls accurately on the measurement and layout position. After lowering, use measuring instruments again to check the elevation, horizontality, and axis position of the bottom support platform. The deviation should be controlled within the allowable range.

[0024] Step 2: Install the ribs;

[0025] Before installation, conduct a comprehensive inspection of the ribs, including appearance quality and dimensional accuracy; check whether there are cracks, honeycombs, or pitting defects on the surface of the ribs. If any defects are found, they should be repaired or replaced; use a steel ruler or caliper to measure the length, width, and height of the ribs to ensure that they meet the design requirements;

[0026] Use a crane to lift the ribs. The lifting point should be selected at a reasonable position on the ribs. During the lifting process, the ribs should be lifted and moved slowly to avoid collision with surrounding objects.

[0027] Move the rib plate to the top of the predetermined installation position on the bottom support platform, and use the fine-tuning function of the crane to align the rib plate with the bottom support platform. After alignment, slowly lower the rib plate. Then, secure the rib plate to the bottom support platform. During the securing process, ensure that the verticality and position deviation of the rib plate meet the requirements. For two sets of symmetrically installed rib plates, install and adjust them simultaneously to ensure their symmetry.

[0028] Step 3: Prepare to connect the I-beam connector and the rib plate;

[0029] Check the quality and size of the I-beam connectors to ensure they are free of deformation, cracks, and that the dimensions meet the design requirements; clean the surface of the I-beam connectors to remove oil, rust, and other impurities to ensure connection quality;

[0030] Step 4: Install the cap shell

[0031] Inspection and transportation of table cap shell

[0032] Carry out appearance inspection and dimensional measurement of the table cap shell to ensure that it is of qualified quality and accurate in size; use a flatbed trailer to transport the table cap shell to the vicinity of the installation location, and pay attention to protecting the table cap shell during transportation to avoid collision and damage;

[0033] Use a crane to lift the shell of the table cap. The lifting point should be selected at a reasonable position of the shell to ensure balance and stability during the lifting process. Move the shell of the table cap to above the rib plate and slowly lower it so that the I-beam connector is inserted into the shell of the table cap. During the insertion process, pay close attention to the insertion depth and position to ensure that the I-beam connector is accurately docked with the reserved hole or connection part in the shell of the table cap.

[0034] After the I-beam connector is inserted into the platform cap shell, the connecting steel bars are fixed to the I-beam connector according to the design requirements. The specifications, quantity and arrangement of the connecting steel bars should comply with the requirements of the design drawings to ensure a firm connection. Then, concrete is poured inside the platform cap shell. Commercial concrete should be used, and its strength grade should meet the design requirements. During the pouring process, vibrators should be used to fully vibrate the concrete to ensure that it is dense and free of honeycomb and pitting defects. After pouring, the concrete surface should be smoothed and maintained in accordance with regulations.

[0035] Step 5: Install the back wall and ear wall;

[0036] Check the prefabrication quality of the back wall and ear wall, including appearance, size, and strength; ensure that the back wall and ear wall are integrally formed, free of cracks, damage, and defects, and that the size meets the design requirements; check the connection between the back wall and ear wall to ensure that it is flat and smooth, and easy to connect with the outer side of the platform cap shell;

[0037] Use a crane to hoist the back wall and ear wall as a whole. The hoisting point should be selected at a reasonable position on the back wall to ensure stability during the hoisting process. Move the back wall and ear wall to the upper part of the predetermined installation position on the outside of the table cap shell, and slowly lower them so that they are in close contact with the outside of the table cap shell. During the lowering process, adjust the position and angle of the back wall and ear wall to ensure that they are aligned with the connection parts of the table cap shell.

[0038] Fix the back wall and the table cap shell. After fixing, check the verticality, horizontality and position deviation of the back wall and ear wall to ensure that they meet the design requirements and complete the overall installation construction.

[0039] The present invention discloses the following technical effects:

[0040] 1) The components of the present invention can be prefabricated in the factory. On-site assembly, simple tasks such as hoisting and connection are required, significantly shortening the construction period. Compared to traditional on-site pouring methods, there is no need to wait for concrete to reach its designed strength, saving significant time and accelerating construction progress, allowing the bridge to be put into operation sooner.

[0041] 2) Prefabricated components are manufactured in a factory environment with a controlled production environment. Advanced production processes and equipment can be used to ensure component quality and dimensional accuracy. Construction workers only need to follow established assembly procedures, which reduces the technical requirements and reduces construction errors and quality issues caused by complex on-site construction conditions and human factors.

[0042] 3) Prefabricated component production is not restricted by natural conditions such as weather and seasons at the construction site. Even in inclement weather, prefabricated components can still be produced in the factory. On-site assembly is relatively simple and has relatively low environmental requirements, which can reduce weather-related construction delays to a certain extent and improve the continuity and stability of construction.

[0043] 4) Prefabrication reduces the labor intensity and labor requirements of on-site construction. Because prefabricated components are of stable quality and the assembly process is relatively simple, fewer skilled workers are required and the construction period is short, thus reducing labor costs.

[0044] 5) Factory-based prefabricated components can precisely control material usage and reduce material waste. During on-site assembly, materials can be used precisely according to design requirements, avoiding material loss during traditional construction processes such as formwork installation and concrete pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 Axonometric view of the lightweight high-strength prefabricated assembled rib plate abutment of the present invention Figure I ;

[0047] Figure 2 This is an exploded view of the lightweight high-strength prefabricated assembled rib plate abutment of the present invention;

[0048] Figure 3 Schematic diagram of the matching relationship between the table cap shell and the back wall of the present invention;

[0049] Figure 4 Schematic diagram of the matching relationship between the rib plate and the cap in the present invention;

[0050] Figure 5 Axonometric view of the lightweight high-strength prefabricated assembled rib plate abutment of the present invention Figure II ;

[0051] Figure 6 Schematic diagram of the internal structure of the table cap shell of the present invention;

[0052] Figure 7 To invent the axonometric measurement of light and high-strength prefabricated assembled rib plate abutment Figure III .

[0053] Among them, 1. Pile foundation; 2. Cap; 3. Rib; 4. Cap shell; 5. Ear wall; 6. Back wall; 7. High-strength glue; 8. Concrete; 9. Column groove; 10. Bolt; 11. I-beam connector; 12. Connecting steel bars. DETAILED DESCRIPTION

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0055] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] Reference Figure 1-7 The present invention provides a lightweight high-strength prefabricated assembled rib plate abutment, comprising:

[0057] Bottom support platform;

[0058] Ribs 3, wherein two groups of ribs 3 are provided, and the two groups of ribs 3 are symmetrically fixedly connected to the top surface of the bottom support platform;

[0059] The platform cap shell 4 is fixed to the top of the rib plate 3. The top surface of the rib plate 3 is fixedly connected with an I-beam connector 11. The I-beam connector 11 is inserted into the platform cap shell 4 and fixedly connected with a connecting steel bar 12.

[0060] The back wall 6 has ear walls 5 symmetrically fixedly connected to both ends of the side of the back wall 6. The back wall 6 and the ear walls 5 are integrally formed, and the outer side of the table cap shell 4 is fixed to the back wall 6;

[0061] The I-beam connector 11 is inserted into the platform cap shell 4 and then fixed by pouring concrete 8 .

[0062] A further optimized solution is that the bottom support platform includes a pile foundation 1 and a pedestal 2, the pile foundation 1 and the pedestal 2 are integrally formed, the pile foundation 1 is provided with several groups, several groups of the pile foundation 1 are fixed to the bottom of the pedestal 2, and the rib plate 3 is fixed to the top surface of the pedestal 2.

[0063] The pile foundations 1 transfer the load borne by the abutments to the deep, stable soil or rock layers, leveraging their bearing capacity to support the abutments. The caps 2 evenly distribute the load of the superstructure (ribs 3, etc.) to each pile foundation 1, allowing the pile foundations 1 to share the load and improving the overall stability of the abutments. The one-piece design avoids the potential for loose connections between the pile foundations 1 and caps 2, enhancing the structural integrity and shear resistance.

[0064] According to a further optimized solution, a column groove 9 is provided on the top surface of the support platform 2 , and the rib plate 3 is fixedly connected in the column groove 9 .

[0065] The column slots 9 provide precise mounting locations for the ribs 3, limiting their horizontal displacement and enabling accurate installation on the abutment 2, thus ensuring the integrity and stability of the abutment structure. Furthermore, the column slots 9 increase the contact area between the ribs 3 and the abutment 2, improving connection strength and enabling better load transfer.

[0066] According to a further optimized solution, the top surface of the rib plate 3 and the bottom surface of the platform cap shell 4 are bonded together by high-strength glue 7 .

[0067] After curing, the high-strength adhesive 7 forms a bond with a certain strength and toughness, tightly connecting the ribs 3 and the platform cap shell 4. This bonding method not only transmits tension and compression, but also resists shear forces to a certain extent, strengthening the connection between the ribs 3 and the platform cap shell 4 and reducing structural damage caused by loose connection parts.

[0068] According to a further optimization scheme, a through hole is provided on the bottom surface of the platform cap shell 4 , and the I-beam connecting piece 11 extends into the platform cap shell 4 through the through hole.

[0069] As a further optimization solution, the side of the table cap shell 4 and the back wall 6 are fixed together by gluing and bolts 10.

[0070] Adhesive bonding provides a certain degree of adhesion, ensuring a tight fit between the cap shell 4 and the back wall 6, reducing relative displacement between the two. Bolts 10 provide a reliable mechanical connection, capable of withstanding significant tensile and shear forces, ensuring the connection strength between the cap shell 4 and the back wall 6. The combined use of these two connection methods fully leverages their respective advantages, improving the reliability and stability of the connection.

[0071] As a further optimization solution, rubber gaskets are provided between the bolt 10 and the back wall 6 and the platform cap shell 4 respectively.

[0072] Pile Foundation 1: Reinforced concrete piles (8) can be used. The concrete strength grade must be no less than C30, and the steel should be HRB400. Reinforced concrete piles (8) have excellent compressive, flexural, and shear resistance, meeting the load-bearing requirements of Pile Foundation 1.

[0073] Cap 2: Also constructed with reinforced concrete (G8) with a strength grade no less than C35, and HRB400 steel. This higher G8 strength improves the bearing capacity and durability of Cap 2.

[0074] The diameter and length of pile foundation 1 should be determined based on geological conditions and abutment load calculations. For example, in soft soil, the diameter of pile foundation 1 can be 800-1200mm, and the length can be determined based on soil distribution, generally not less than 15m.

[0075] The size of the pier 2 should be determined according to the arrangement of the pile foundation 1 and the load of the superstructure. Generally, the thickness of the pier 2 should not be less than 1.5m, and the length and width should be determined according to the spacing between the pile foundations 1 and the size of the abutments.

[0076] The reinforced concrete 8 structure is adopted, the strength grade of the concrete 8 is not less than C40, and the steel bars are HRB400 grade steel bars. The high strength concrete 8 and steel bars can ensure that the ribs 3 have sufficient bearing capacity and crack resistance.

[0077] The cross-sectional dimensions of the rib 3 should be determined based on the design load and structural requirements of the abutment. Generally, the thickness of the rib 3 should be no less than 300 mm, and the width should be determined based on the abutment dimensions and load conditions. The height of the rib 3 should be determined by the distance from the top surface of the abutment 2 to the bottom surface of the abutment cap shell 4.

[0078] The epoxy resin high-strength glue 7 is selected, which has the advantages of high strength, high adhesion, aging resistance, corrosion resistance, etc. The bonding strength of the epoxy resin high-strength glue 7 should be no less than 20MPa, which can meet the bonding requirements between the rib plate 3 and the platform cap shell 4.

[0079] A method for installing a lightweight, high-strength prefabricated assembled ribbed abutment comprises the following steps:

[0080] Step 1: Place the bottom support platform;

[0081] At the location where the bottom support platform is installed, use excavators and forklifts to remove debris, stones, and vegetation obstacles on the ground to ensure that the ground is flat and solid. For weak foundations, replacement filling, compaction, or pile foundation treatment measures must be carried out according to design requirements to improve the foundation bearing capacity;

[0082] Based on the design coordinates and elevation of the abutment, use total stations and levels to accurately measure and lay out the lines; set control stakes around the installation location and mark them for calibration during subsequent installation;

[0083] Use a flatbed trailer to transport the bottom support platform from the prefabrication site to the installation location; during transportation, ensure that the bottom support platform is firmly fixed to prevent shaking and collision;

[0084] Use a crane to slowly lift the bottom support platform, move it above the installation location, and then lower it at a preset speed. During the lowering process, pay close attention to the position and posture of the bottom support platform, and use the fine-tuning function of the crane to ensure that it falls accurately on the measurement and layout position. After lowering, use measuring instruments again to check the elevation, horizontality, and axis position of the bottom support platform. The deviation should be controlled within the allowable range.

[0085] Step 2: Install the rib 3;

[0086] Before installation, conduct a comprehensive inspection of the ribs 3, including appearance quality and dimensional accuracy; check whether there are cracks, honeycombs, or pitting defects on the surface of the ribs 3. If there are defects, they should be repaired or replaced; use a steel ruler or caliper to measure the length, width, and height of the ribs 3 to ensure that they meet the design requirements;

[0087] Use a crane to lift the rib 3. The lifting point should be selected at a reasonable position on the rib 3. During the lifting process, the rib 3 should be lifted and moved slowly to avoid collision with surrounding objects.

[0088] Move the rib 3 to the upper portion of the predetermined installation position on the bottom support platform, and align the rib 3 with the bottom support platform using the fine-tuning function of the crane. After alignment, slowly lower the rib 3. Then, secure the rib 3 to the bottom support platform. During the securing process, ensure that the verticality and positional deviation of the rib 3 meet the requirements. For two symmetrically installed sets of ribs 3, install and adjust them simultaneously to ensure symmetry.

[0089] Step 3: Prepare to connect the I-beam connector 11 and the rib 3;

[0090] Check the quality and size of the I-beam connector 11 to ensure that it has no deformation, cracks or defects and that the size meets the design requirements; clean the surface of the I-beam connector 11 to remove oil, rust and other impurities to ensure the quality of the connection;

[0091] Step 4: Install the cap shell 4

[0092] Inspection and transportation of table cap shell 4

[0093] Perform appearance inspection and dimensional measurement on the table cap shell 4 to ensure that it is of qualified quality and accurate in size; use a flatbed trailer to transport the table cap shell 4 to the vicinity of the installation location, and pay attention to protecting the table cap shell 4 during transportation to avoid collision and damage;

[0094] Use a crane to lift the table cap shell 4. The lifting point should be selected at a reasonable position of the table cap shell 4 to ensure balance and stability during the lifting process; move the table cap shell 4 above the rib plate 3 and slowly lower it so that the I-beam connector 11 is inserted into the table cap shell 4; during the insertion process, pay close attention to the insertion depth and position to ensure that the I-beam connector 11 is accurately docked with the reserved hole or connection part in the table cap shell 4;

[0095] After the I-beam connector 11 is inserted into the platform cap shell 4, the connecting steel bars 12 are fixed to the I-beam connector 11 according to the design requirements; the specifications, quantity and arrangement of the connecting steel bars 12 should comply with the requirements of the design drawings to ensure a firm connection; then, concrete 8 is poured in the platform cap shell 4; the concrete 8 should be commercial concrete 8, and its strength grade should meet the design requirements; during the pouring process, a vibrating rod should be used to fully vibrate to ensure that the concrete 8 is dense and free of honeycomb and pitting defects; after the pouring is completed, the surface of the concrete 8 is smoothed and maintained in accordance with regulations;

[0096] Step 5: Install the back wall 6 and ear wall 5;

[0097] Check the prefabrication quality of the back wall 6 and the ear wall 5, including appearance, size, and strength; ensure that the back wall 6 and the ear wall 5 are integrally formed, free of cracks, damage, and defects, and that the size meets the design requirements; check the connection between the back wall 6 and the ear wall 5 to ensure that it is flat and smooth, and easy to connect with the outer side of the platform cap shell 4;

[0098] Use a crane to lift the back wall 6 and the ear wall 5 as a whole. The lifting point should be selected at a reasonable position of the back wall 6 to ensure stability during the lifting process; move the back wall 6 and the ear wall 5 to above the predetermined installation position on the outside of the table cap shell 4, and slowly lower them so that they are in close contact with the outside of the table cap shell 4; during the lowering process, adjust the position and angle of the back wall 6 and the ear wall 5 to ensure that they are aligned with the connection parts of the table cap shell 4;

[0099] Fix the back wall 6 and the platform cap shell 4. After the fixation is completed, check the verticality, horizontality and position deviation of the back wall 6 and the ear wall 5 to ensure that they meet the design requirements and complete the overall installation construction.

[0100] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0101] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A lightweight high-strength prefabricated assembled rib plate abutment, characterized in that: include: Bottom support platform; Ribs (3), wherein two groups of ribs (3) are provided, and the two groups of ribs (3) are symmetrically fixedly connected to the top surface of the bottom support platform; A table cap shell (4), the table cap shell (4) is fixed to the top of the rib plate (3), the top surface of the rib plate (3) is fixedly connected with an I-beam connecting piece (11), the I-beam connecting piece (11) is inserted into the table cap shell (4), and is fixedly connected with a connecting steel bar (12); A back wall (6), the two ends of the side of the back wall (6) are symmetrically fixedly connected with ear walls (5), the back wall (6) and the ear walls (5) are integrally formed, and the outer side of the table cap shell (4) is fixed to the back wall (6); Wherein, the I-beam connecting piece (11) is inserted into the platform cap shell (4) and then fixed by pouring concrete (8).

2. The lightweight high-strength prefabricated assembled ribbed abutment according to claim 1, characterized in that: The bottom support platform comprises a pile foundation (1) and a bearing platform (2); the pile foundation (1) and the bearing platform (2) are integrally formed; the pile foundation (1) is provided in a plurality of groups; the plurality of groups of pile foundations (1) are all fixed to the bottom of the bearing platform (2); and the ribs (3) are fixed to the top surface of the bearing platform (2).

3. The lightweight high-strength prefabricated assembled ribbed abutment according to claim 2, characterized in that: A column groove (9) is provided on the top surface of the support platform (2), and the rib plate (3) is fixedly connected in the column groove (9).

4. The lightweight high-strength prefabricated assembled ribbed abutment according to claim 1 is characterized by: The top surface of the rib plate (3) and the bottom surface of the platform cap shell (4) are bonded together by high-strength glue (7).

5. The lightweight high-strength prefabricated assembled ribbed abutment according to claim 1 is characterized by: A through hole is provided on the bottom surface of the platform cap shell (4), and the I-beam connecting piece (11) passes through the through hole and extends into the platform cap shell (4).

6. The lightweight high-strength prefabricated assembled ribbed abutment according to claim 1 is characterized by: The side surface of the table cap shell (4) and the back wall (6) are fixed together by means of adhesive connection and bolt (10) connection.

7. The lightweight high-strength prefabricated assembled ribbed abutment according to claim 6, characterized in that: Rubber gaskets are respectively provided between the bolt (10), the back wall (6), and the table cap shell (4).

8. A method for installing a light-weight high-strength prefabricated assembled ribbed abutment, based on the light-weight high-strength prefabricated assembled ribbed abutment according to any one of claims 1 to 7, characterized in that: The steps include: Step 1: Place the bottom support platform; At the location where the bottom support platform is installed, use excavators and forklifts to remove debris, stones, and vegetation obstacles on the ground to ensure that the ground is flat and solid; For weak foundations, replacement filling, compaction or pile foundation treatment measures need to be carried out according to design requirements to improve the foundation bearing capacity; Based on the design coordinates and elevation of the abutment, use total stations and levels to accurately measure and lay out the lines; set control stakes around the installation location and mark them for calibration during subsequent installation; Use a flatbed trailer to transport the bottom support platform from the prefabrication site to the installation location; During transportation, ensure that the bottom support platform is firmly fixed to prevent shaking and collision; Use a crane to slowly lift the bottom support platform, move it above the installation location, and then lower it at a preset speed; During the lowering process, pay close attention to the position and posture of the bottom support platform, and use the fine-tuning function of the crane to ensure that it falls accurately on the measurement and layout position; after lowering, use the measuring instrument again to check the elevation, horizontality and axis position of the bottom support platform, and the deviation should be controlled within the allowable range; Step 2: Install the ribs (3); Before installation, the ribs (3) are thoroughly inspected, including appearance quality and dimensional accuracy; the surface of the ribs (3) is inspected for cracks, honeycombs, or pitting defects, and if any defects are found, they should be repaired or replaced; the length, width, and height of the ribs (3) are measured using a steel ruler or caliper tool to ensure that they meet the design requirements; Use a crane to lift the rib plate (3). The lifting point should be selected at a reasonable position on the rib plate (3). During the lifting process, the rib plate (3) should be lifted and moved slowly to avoid collision with surrounding objects. Move the rib plate (3) to above the predetermined installation position of the bottom support platform, and align the rib plate (3) with the bottom support platform through the fine adjustment function of the crane; After alignment, slowly lower the rib plate (3); then firmly fix the rib plate (3) to the bottom support platform; during the fixing process, ensure that the verticality and position deviation of the rib plate (3) meet the requirements; for two sets of symmetrically installed rib plates (3), they should be installed and adjusted at the same time to ensure their symmetry; Step 3, preparing to connect the I-beam connector (11) and the rib plate (3); Check the quality and size of the I-beam connector (11) to ensure that it has no deformation, cracks or defects and that the size meets the design requirements; clean the surface of the I-beam connector (11) to remove oil stains and rust impurities to ensure the connection quality; Step 4: Install the cap shell (4) Inspection and transportation of table cap shell (4) Perform appearance inspection and dimensional measurement on the table cap shell (4) to ensure that it is of qualified quality and accurate in size; use a flatbed trailer to transport the table cap shell (4) to the vicinity of the installation location, and pay attention to protecting the table cap shell (4) during transportation to avoid collision and damage; Use a crane to lift the table cap shell (4). The lifting point should be selected at a reasonable position of the table cap shell (4) to ensure balance and stability during the lifting process. Move the table cap shell (4) to the top of the rib plate (3), and slowly lower it so that the I-beam connecting piece (11) is inserted into the table cap shell (4); during the insertion process, pay close attention to the insertion depth and position to ensure that the I-beam connecting piece (11) is accurately docked with the reserved hole or connection part in the table cap shell (4); After the I-beam connector (11) is inserted into the platform cap shell (4), the connecting steel bar (12) is fixed to the I-beam connector (11) according to the design requirements; the specifications, quantity and arrangement of the connecting steel bar (12) should comply with the requirements of the design drawings to ensure a firm connection; then, concrete (8) is poured in the platform cap shell (4); the concrete (8) should be commercial concrete (8), and its strength grade should comply with the design requirements; during the pouring process, a vibrating rod should be used to fully vibrate to ensure that the concrete (8) is dense and has no honeycomb or pitting defects; after the pouring is completed, the surface of the concrete (8) is smoothed and maintained in accordance with regulations; Step 5: Install the back wall (6) and ear wall (5); Check the prefabrication quality of the back wall (6) and the ear wall (5), including appearance, size, and strength; ensure that the back wall (6) and the ear wall (5) are integrally formed, free of cracks, damage, and defects, and that the size meets the design requirements; check the connection between the back wall (6) and the ear wall (5) to ensure that it is flat and smooth, and is easy to connect with the outer side of the table cap shell (4); Use a crane to hoist the back wall (6) and the ear wall (5) as a whole. The hoisting point should be selected at a reasonable position of the back wall (6) to ensure stability during the hoisting process. Move the back wall (6) and the ear wall (5) to the upper part of the predetermined installation position outside the table cap shell (4), and slowly lower them so that they are in close contact with the outside of the table cap shell (4). During the lowering process, adjust the position and angle of the back wall (6) and the ear wall (5) to ensure that they are aligned with the connection part of the table cap shell (4). The back wall (6) and the table cap shell (4) are fixed. After the fixing is completed, the verticality, horizontality and position deviation of the back wall (6) and the ear wall (5) are checked to ensure that they meet the design requirements and complete the overall installation construction.

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