Support mounting structure for anti-overturning transformation of single-column pier bridge

Abstract

The utility model relates to the technical field of single-column pier reconstruction, in particular to a support mounting structure for anti-overturning reconstruction of a single-column pier bridge, which comprises a steel box arranged on the top surface of a newly added steel cover beam at the top of a single-column pier, the steel box is connected with the steel cover beam, and non-shrinkage grouting materials are filled in the steel box; the newly-added support is arranged above the solidified shrinkage-free grouting material, and limiting pieces are arranged on the periphery of the newly-added support; the anchor bolts vertically penetrate through the shrinkage-free grouting material, the lower ends of the anchor bolts are connected with the steel cover beam, and the upper ends are fixed to the corresponding limiting pieces; four leveling screws distributed in a rectangular array, the upper ends of the leveling screws are anchored in the concrete girder, the lower ends of all the leveling screws jointly penetrate through a leveling steel plate, the lower end of each leveling screw is provided with two leveling nuts, the leveling nuts are located on the upper side and the lower side of the leveling steel plate, and the leveling steel plate can be pre-pressed on the newly-added support through the leveling nuts; and polymer modified cement mortar is filled between the leveling steel plate and the concrete main beam, so that the newly-added support is mounted quickly and accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of single-column pier reconstruction, in particular to a support installation structure for anti-overturning reconstruction of a single-column pier bridge. Background Art

[0002] Increasing the number of fulcrums at the single-column pier position and increasing the spacing between non-single-column pier supports can significantly improve the anti-overturning stability of single-column pier bridges. However, compared with increasing the spacing between non-single-column pier supports, increasing the fulcrums at the single-column pier position is easier to achieve and has less impact on the original structure. Therefore, single-column pier bridges usually adopt the method of increasing the number of fulcrums at the single-column pier position to improve the anti-overturning stability; the specific measures are: adding a steel cap beam to the top of the single-column pier, and installing a support structure on the steel cap beam to achieve the purpose of increasing the number of fulcrums. The steel cap beam has the advantages of light structure, almost no increase in dead load, factory production, and convenient and fast on-site installation. It has been widely used. When installing new supports on the steel cap beam, it is necessary to consider how to adapt to the height between the steel cap beam and the concrete main beam, how to ensure the installation level of the new supports, how to avoid the new supports from being stressed when the concrete main beam is not overturned, and how to ensure the integrity of the structure. This is the key and difficulty of installing a support structure on the steel cap beam to achieve the anti-overturning transformation of the single-column pier bridge. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art in which new supports are installed between the steel cap beam and the concrete main beam, such as difficulty in adapting to the height between the steel cap beam and the concrete main beam, difficulty in ensuring the installation horizontality of the new supports, difficulty in avoiding stress on the new supports when the concrete main beam has not overturned, and difficulty in ensuring the integrity of the structure, and to provide a support installation structure for anti-overturning transformation of a single-column pier bridge.

[0004] The utility model provides a support installation structure for anti-overturning transformation of a single-column pier bridge, comprising

[0005] A steel box is used to be arranged on the top surface of a newly added steel cap beam on the top of the single-column pier, the steel box is connected to the steel cap beam, and the steel box is filled with non-shrinkage grouting material;

[0006] A newly added support is arranged above the solidified non-shrinkage grouting material, and a limiting member is arranged around the newly added support;

[0007] Anchor bolts vertically penetrate the non-shrinkage grouting material, the lower ends of the anchor bolts are connected to the steel cap beams, and the upper ends are fixed to the corresponding limit members;

[0008] Four leveling screws are distributed in a rectangular array, the upper ends of the leveling screws are anchored in the concrete main beam, the lower ends of all the leveling screws are jointly passed through a leveling steel plate, and each leveling screw is provided with two leveling nuts at the lower end, and the leveling nuts are located on the upper and lower sides of the leveling steel plate. The leveling nuts can pre-press the leveling steel plate onto the newly added support; polymer-modified cement mortar is filled between the leveling steel plate and the concrete main beam.

[0009] In this solution, the steel box is connected to the steel cap beam and forms an integral part with the steel cap beam. The non-shrinkage grouting material is filled in the steel box and will not separate from the steel box, so that the steel cap beam, the steel box and the non-shrinkage grouting material form an integral part, which can be used to raise the bottom of the newly added support. The bottom of the newly added support can be leveled by leveling the top of the non-shrinkage grouting material.

[0010] The limiters around the newly added support are connected to the steel cap beam through vertically arranged anchor bolts, so that the newly added support can be limited around to ensure that the support can always be in the corresponding working position;

[0011] Four leveling screws arranged in a rectangular array are anchored in the concrete main beam. By moving the upper and lower leveling nuts of different leveling screws on the leveling screws, the horizontality of the leveling steel plate can be adjusted. After being fixed, the leveling steel plate can be pre-pressed on the newly added support, so that the top surface of the newly added support is closely attached to the leveling steel plate, and the bottom surface of the newly added support is closely attached to the top surface of the non-shrinkage grouting material, so that when the bridge does not overturn, the newly added support is not subjected to force;

[0012] The polymer modified cement mortar is filled between the leveling steel plate and the concrete main beam. The polymer modified cement mortar has bonding ability and can be used together with the leveling screw to fix the leveling steel plate to form an integral structure.

[0013] The use of the bearing installation structure for anti-overturning reconstruction of a single-column pier bridge described in this application can achieve leveling of the top and bottom surfaces of the newly added bearings with high installation accuracy; it can adapt to the height between the steel cap beam and the concrete main beam, and can ensure that when the bridge does not overturn, the newly added bearings are not subjected to stress and can be used as a reserve anti-overturning capacity storage. The structure has high structural integrity and good stability.

[0014] Preferably, the steel box only includes four side walls, and the four side walls and the bottom steel cap beam can form an enclosure structure for pouring non-shrinkage grouting material, avoiding waste of materials caused by setting up redundant structures.

[0015] Preferably, the outer sides of the four side walls of the steel box are welded to the top surface of the steel cap beam, which has convenient connection, high stability and good integrity.

[0016] Preferably, the screw head of the anchor bolt is located below the top surface of the steel cap beam, and the screw rod of the anchor bolt passes through the steel cap beam and the non-shrinkage grouting material from bottom to top and is fixed to the corresponding limit piece.

[0017] The use of screw heads to hold the limit pieces with the help of the steel cap beam results in better fixing effects and more convenient installation.

[0018] Preferably, the newly added support is a plate-type rubber support with a simple structure.

[0019] Preferably, the limiting member is a limiting angle steel, which includes a vertical plate and a flat plate. The vertical plate is limited to the outside of the newly added support, and the flat plate is located above the solidified non-shrinkage grouting material. The upper end of the anchor bolt is fixed above the flat plate by an anchor nut.

[0020] Preferably, each of the limiting angle steels is fixedly connected by two anchor bolts, and the two anchor bolts are arranged close to both ends of the limiting angle steel, so that the connection is more stable.

[0021] Preferably, the cross-section of the steel box is rectangular, which is easy to process and adaptable to the newly added support structure.

[0022] Preferably, a plurality of shear bars are provided at intervals on the upper side of the leveling steel plate, and all the shear bars are arranged in a rectangular array, which can strengthen the connection between the leveling steel plate and the non-shrinkage grouting material, and further strengthen the connection between the concrete main beam and the leveling steel plate.

[0023] Preferably, the peripheral side of the polymer-modified cement mortar has a stress diffusion slope, and the slope of the stress diffusion slope is downward, which is conducive to stress diffusion.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The utility model provides a support installation structure for the anti-overturning transformation of the single-column pier bridge, which can realize the leveling of the top and bottom surfaces of the newly added support (9) with high installation accuracy; it can adapt to the height between the steel cap beam and the concrete main beam, and can ensure that when the bridge does not overturn, the newly added support is not subjected to stress and can be used as a reserve anti-overturning capacity storage. The structure has high structural integrity and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an elevation view of the support installation structure for the anti-overturning reconstruction of the single-column pier bridge of the utility model;

[0027] Figure 2 It is the installation plan of the newly added support;

[0028] Figure 3 It is a schematic diagram of leveling steel plate;

[0029] Figure 4 It is a plan view of the steel box;

[0030] Figure 5 It is a schematic diagram of the installation state of the support installation structure for the anti-overturning transformation of the single-column pier bridge;

[0031] Markings in the figure: 1-steel box; 2-limiting angle steel; 21-anchor screw hole; 3-anchor bolt; 4-non-shrinkage grouting material; 5-leveling steel plate; 51-leveling screw hole; 52-shear reinforcement; 6-leveling screw; 7-leveling nut; 8-polymer modified cement mortar; 81-stress diffusion slope; 9-new support; 10-steel cap beam; 11-concrete main beam; 12-single column pier. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0033] In the description of the specific embodiments of the present invention, unless otherwise specified, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.

[0035] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0036] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0037] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0038] Example 1

[0039] like Figure 1-4 As shown, a support installation structure for anti-overturning reconstruction of a single-column pier bridge includes a steel box 1, a limiter, a non-shrinkage grouting material 4, a leveling steel plate 5, a leveling screw 6, a leveling nut 7, a polymer-modified cement mortar 8 and a newly added support 9;

[0040] The steel box 1 is used to be arranged on the top surface of the newly added steel cap beam 10 on the top of the single column pier 12, the steel box 1 is connected to the steel cap beam 10, and the steel box 1 is filled with non-shrinkage grouting material 4;

[0041] A newly added support 9 is arranged above the solidified non-shrinkage grouting material 4, and a limiting member is arranged around the newly added support 9;

[0042] Anchor bolts 3 vertically penetrate the non-shrinkage grouting material 4, the lower end of the anchor bolts 3 is connected to the steel cap beam 10, and the upper end is fixed to the corresponding limiter;

[0043] Four leveling screws 6 are distributed in a rectangular array, and the upper ends of the leveling screws 6 are anchored in the concrete main beam 11. The lower ends of all the leveling screws 6 are commonly penetrated through a leveling steel plate 5. Two leveling nuts 7 are provided at the lower end of each leveling screw 6. The leveling nuts 7 are located on the upper and lower sides of the leveling steel plate 5. The leveling nuts 7 can pre-press the leveling steel plate 5 on the newly added support 9; polymer-modified cement mortar 8 is filled between the leveling steel plate 5 and the concrete main beam 11, and the lower surface of the concrete main beam 11 has a slope of i%. The polymer-modified cement mortar 8 is used to adapt to the slope design so that the leveling steel plate 5 can be adjusted to a horizontal state.

[0044] In this solution, the steel box 1 is mainly used to enclose the filling space of the non-shrinkage grouting material 4, so that the non-shrinkage grouting material 4 and the steel box 1 can form an integral structure, and the non-shrinkage grouting material 4 will not shrink, and will not separate from the steel box 1 after solidification, and always maintain the overall shape. The steel box 1 is connected to the steel cap beam 10 and forms a whole with the steel cap beam 10. The non-shrinkage grouting material 4 is filled in the steel box 1 and will not separate from the steel box 1, so that the steel cap beam 10, the steel box 1 and the non-shrinkage grouting material 4 form a whole, which can be used to raise the bottom of the newly added support 9, and the bottom of the newly added support 9 can be leveled by leveling the top of the non-shrinkage grouting material 4.

[0045] The cross-sectional shape of the steel box can be selected. When the cross-sectional shape of the steel box 1 is rectangular, it is easy to process and adapt to the newly added support structure. The steel box 1 can be a bottomed steel box or a bottomless steel box. In the present application, because the steel box 1 is arranged on the top surface of the newly added steel cap beam 10 on the top of the single-column pier 12, after the steel box 1 is connected to the top surface of the steel cap beam 10, the top surface of the steel cap beam 10 can be used as the bottom surface of the filling space. Therefore, a better implementation method is adopted. The steel box 1 only includes four side walls. The four side walls and the bottom steel cap beam can form an enclosure structure for pouring non-shrinkage grouting material 4, avoiding the waste of materials caused by setting up redundant structures. In addition, compared with other connection methods, the steel box 1 only includes four side walls, and the outer bottom of the four side walls of the steel box 1 is welded to the top surface of the steel cap beam 10, which is convenient to connect, has high stability, good integrity, and can also ensure sealing performance to avoid slurry seepage from the bottom of the side.

[0046] In this solution, the limiters around the newly added support 9 are connected to the steel cap beam 10 through the vertically arranged anchor bolts 3, so that the newly added support 9 can be limited around to ensure that the support can always be in the corresponding working position;

[0047] Furthermore, the screw head of the anchor bolt 3 is located below the top surface of the steel cap beam 10, and the screw rod of the anchor bolt 3 passes through the steel cap beam 10 and the non-shrinkage grouting material 4 from bottom to top and is fixed to the corresponding limiter. The screw head is used to pull the limiter with the help of the steel cap beam 10, which has a better fixing effect and is more convenient to install.

[0048] In one or more embodiments, Figure 5 As shown, in the anti-overturning reconstruction of the single-column pier, when a new support is added by adding a steel cap beam 10, generally, the new support 9 is a plate-type rubber support with a simple structure, without upper and lower connecting steel plates, and does not require a specific anchoring structure.

[0049] When the newly added support 9 is a plate-type rubber support, this solution requires a separate limiter to limit the plate-type rubber support because there is no upper and lower connecting steel plate. Specifically, Figure 2 As shown, the limiting member is a limiting angle steel 2, and the limiting angle steel 2 includes a vertical plate and a flat plate. The vertical plate is limited to the outside of the newly added support 9, and the flat plate is located above the solidified non-shrinkage grouting material 4. The flat plate is provided with an anchor screw hole 21, and the upper end of the anchor bolt 3 passes through the anchor screw hole 21, and then is fixed above the flat plate by an anchor nut to fix the limiting angle steel 2.

[0050] Further, such as Figure 4 As shown, each of the limiting angle steels 2 is fixedly connected by two anchor bolts 3, and the two anchor bolts 3 are arranged near the two ends of the limiting angle steel 2, so that the connection is more stable.

[0051] In this solution, four leveling screws 6 arranged in a rectangular array are anchored in the concrete main beam 11. By moving the upper and lower leveling nuts 7 of different leveling screws 6 on the leveling screws 6, the horizontal adjustment of the leveling steel plate 5 can be achieved. Specifically, Figure 3 As shown, the leveling steel plate 5 is a rectangular structure, and the four corners of the leveling steel plate 5 are provided with leveling screw holes 51. The leveling screw 6 is threadedly connected to a leveling nut 7 and then passes through the corresponding leveling screw hole 51, and then is threadedly connected to another leveling nut 7, so that the upper and lower sides of the leveling steel plate 5 are limited, and the position of the leveling screw hole 51 is staggered with the newly added support 9. Specifically, the newly added support 9 corresponds to the middle of the leveling steel plate 5, and the four leveling screw holes 51 are located on the outside of the newly added support 9 to avoid the leveling nut 7 on the lower side of the leveling steel plate 5 from interfering with the newly added support 9. And each leveling screw 6 can adjust the height of the leveling steel plate 5 corresponding to the leveling screw hole 51 by adjusting the leveling nuts 7 on the upper and lower sides, so that the horizontality of the leveling steel plate 5 can be adjusted to ensure the installation accuracy of the newly added support 9, and the overall height of the leveling steel plate 5 can be adjusted at the same time, which can adapt to different vertical support spacings between the top surfaces of the concrete main beam 11 and the steel cap beam 10. After the leveling steel plate 5 is fixed by the leveling nuts 7 on the upper and lower sides, the leveling steel plate 5 can be pre-pressed on the newly added support 9, so that the top surface of the newly added support is closely attached to the leveling steel plate 5, and the bottom surface of the newly added support is closely attached to the top surface of the non-shrinkage grouting material 4, so that when the bridge does not overturn, the newly added support is not subjected to force;

[0052] In addition, polymer-modified cement mortar 8 is filled between the leveling steel plate 5 and the concrete main beam 11. The polymer-modified cement mortar 8 has bonding ability and can cooperate with the leveling screw 6 to fix the leveling steel plate 5 to form an integral structure.

[0053] In one or more embodiments, Figure 3 As shown, a plurality of shear bars 52 are provided at intervals on the upper side of the leveling steel plate 5 , and all the shear bars 52 are arranged in a rectangular array, which can strengthen the connection between the leveling steel plate 5 and the non-shrinkage grouting material 4 , and further strengthen the connection between the concrete main beam 11 and the leveling steel plate 5 .

[0054] In one or more embodiments, Figure 1 As shown, the peripheral side of the polymer modified cement mortar 8 has a stress diffusion slope 81, and the slope surface of the stress diffusion slope 81 is downward, which is conducive to stress diffusion.

[0055] In this embodiment, the cushion stone part is composed of a steel box, a limiting angle steel, an anchor bolt, and a non-shrinkage grouting material; the leveling part is composed of a leveling steel plate, a leveling screw, a leveling nut, and a polymer-modified cement mortar. Before installing the steel cap beam 10, first mark out the position of the leveling steel plate 5 at the bottom of the beam and implant the leveling screw 6; after installing the steel cap beam 10, drill the anchor screw hole 21 on the top surface of the steel cap beam 10, and weld the steel box 1 to the top surface of the steel cap beam 10; pour the non-shrinkage grouting material 4 in the steel box 1, and embed the anchor bolts 3; then weld the shear reinforcement 52 on the leveling steel plate 5, install the leveling nut 7, the leveling steel plate 5 and the newly added support 9, use the torque wrench to adjust the leveling nut 7 to make the leveling steel plate 5 level and ensure that the preload between the leveling steel plate 5 and the newly added support 9 is not less than 5kN; finally, pour the polymer modified cement mortar 8 between the leveling steel plate 5 and the bottom of the concrete main beam 11, install the limiting angle steel 2, and complete the installation of the newly added support 9. In the support installation structure, the top and bottom surfaces of the support can be leveled on site, with high installation accuracy; it can be flexibly adjusted according to the actual support size, structural size and support height, with simple operation, controllable height, low manpower investment, considerable economic benefits and a wide range of applications.

[0056] The support installation structure for the anti-overturning transformation of the single-column pier bridge described in this embodiment can realize on-site leveling of the top and bottom surfaces of the newly added support 9, with high installation accuracy; and can adapt to the height between the steel cap beam and the concrete main beam, that is, it can adapt to different total support heights; and can accurately control the pre-stressing force of the newly added support, so that the top and bottom surfaces of the support are closely attached to the upper and lower structures respectively, that is, it can ensure that when the bridge does not overturn, the newly added support is not stressed, and can be used as a reserve anti-overturning capacity storage, and its structure has high integrity, good stability, extremely simple operation, less personnel investment, and considerable economic benefits. It solves the problem of fast and accurate installation of the support for the anti-overturning transformation of the single-column pier bridge, and effectively improves the anti-overturning stability of the single-column pier bridge.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A support installation structure for anti-overturning reconstruction of a single-column pier bridge, characterized in that: include A steel box (1) is used to be arranged on the top surface of a newly added steel cap beam (10) on the top of a single-column pier (12), the steel box (1) being connected to the steel cap beam (10), and the steel box (1) being filled with a non-shrinkage grouting material (4); A newly added support (9) is arranged above the solidified non-shrinkage grouting material (4), and a limiting member is arranged around the newly added support (9); An anchor bolt (3) vertically passes through the non-shrinkage grouting material (4), wherein the lower end of the anchor bolt (3) is connected to the steel cap beam (10) and the upper end is fixed to the corresponding limit member; Four leveling screws (6) are distributed in a rectangular array, the upper ends of the leveling screws (6) are anchored in a concrete main beam (11), the lower ends of all the leveling screws (6) are commonly penetrated through a leveling steel plate (5), and two leveling nuts (7) are provided at the lower end of each leveling screw (6), and the leveling nuts (7) are located on the upper and lower sides of the leveling steel plate (5), and the leveling nuts (7) can pre-press the leveling steel plate (5) onto the newly added support (9); polymer-modified cement mortar (8) is filled between the leveling steel plate (5) and the concrete main beam (11).

2. The support installation structure for anti-overturning reconstruction of a single-column pier bridge according to claim 1 is characterized in that: The steel box (1) only comprises four side walls.

3. The support installation structure for anti-overturning reconstruction of a single-column pier bridge according to claim 2 is characterized in that: The outer sides of the four side walls of the steel box (1) are welded to the top surface of the steel cap beam (10).

4. The support installation structure for anti-overturning reconstruction of a single-column pier bridge according to claim 2 is characterized in that: The screw head of the anchor bolt (3) is located below the top surface of the steel cap beam (10), and the screw rod of the anchor bolt (3) passes through the steel cap beam (10) and the non-shrinkage grouting material (4) from bottom to top and is fixed to the corresponding limit piece.

5. The support installation structure for anti-overturning reconstruction of a single-column pier bridge according to claim 1 is characterized in that: The newly added support (9) is a plate-type rubber support.

6. The support installation structure for anti-overturning reconstruction of a single-column pier bridge according to claim 4 is characterized in that: The limiting member is a limiting angle steel (2), and the limiting angle steel (2) comprises a vertical plate and a flat plate. The vertical plate is limited to the outside of the newly added support (9), and the flat plate is located above the solidified non-shrinkage grouting material (4). The upper end of the anchor bolt (3) is fixed above the flat plate by an anchor nut.

7. The support installation structure for anti-overturning reconstruction of a single-column pier bridge according to claim 6 is characterized in that: Each of the limiting angle steels (2) is fixedly connected via two anchor bolts (3), and the two anchor bolts (3) are arranged close to both ends of the limiting angle steel (2).

8. A support installation structure for anti-overturning reconstruction of a single-column pier bridge according to any one of claims 1 to 7, characterized in that: The cross section of the steel box (1) is rectangular.

9. A support installation structure for anti-overturning reconstruction of a single-column pier bridge according to any one of claims 1 to 7, characterized in that: A plurality of shear ribs (52) are arranged at intervals on the upper side of the leveling steel plate (5), and all of the shear ribs (52) are arranged in a rectangular array.

10. A support installation structure for anti-overturning reconstruction of a single-column pier bridge according to any one of claims 1 to 7, characterized in that: The peripheral side of the polymer-modified cement mortar (8) has a stress diffusion slope (81), and the slope surface of the stress diffusion slope (81) faces downward.

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