Municipal road bridge construction steel structure temporary bridge structure

Abstract

The utility model belongs to the technical field of bridge construction, and relates to a municipal road bridge construction steel structure temporary bridge structure which comprises a steel pipe pile with the bottom driven into the ground, a stand column is arranged in the steel pipe pile, and the bottom of the stand column is driven into the ground. A plurality of spring supporting mechanisms distributed at intervals in the axial direction of the stand column are installed on the stand column, and each spring supporting mechanism comprises a plurality of spring supporting mechanisms annularly distributed with the stand column as the center. A steel pipe pile driven into the ground in a steel structure temporary bridge structure is an important component used for supporting a bridge superstructure and loads, a stand column driven into the ground is arranged in the steel pipe pile, and a plurality of spring supporting mechanisms are installed on the stand column to form supporting in an annular space between the steel pipe pile and the stand column. The stand columns arranged in the steel pipe pile and the multiple sets of spring supporting mechanisms form a center supporting structure in the steel pipe pile, the stability of the steel pipe pile can be improved, and the probability that the steel pipe pile inclines in the using process is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and particularly relates to a steel structure temporary bridge structure for municipal road bridge construction. Background Technique

[0002] In the construction of municipal road bridges, steel structure temporary bridges play an important role. By building steel structure temporary bridges, a passage can be provided for construction personnel and equipment, ensuring that construction materials and machinery can smoothly enter and exit the construction area. It can be used as a construction platform for construction personnel and construction machinery to carry out the construction operations of municipal road bridge structures.

[0003] When constructing a steel structure temporary bridge structure on a river channel in the prior art, steel pipe piles need to be installed in the river channel to support the upper structure and load of the bridge. Usually, a crawler crane is used in cooperation with a vibratory hammer for pile driving. However, the steel pipe piles of the existing steel structure temporary bridge structure are hammered into the ground, and they are of a hollow structure, with limited stability and bearing capacity. If they tilt during use, it is easy to cause safety accidents. Content of the Utility Model

[0004] The purpose of the utility model is to provide a steel structure temporary bridge structure for municipal road bridge construction. A central support structure is arranged inside the steel pipe piles of the steel structure temporary bridge structure, improving the stability of the steel pipe piles to solve the problems raised in the above background technique.

[0005] The utility model is realized through the following technical solutions:

[0006] A steel structure temporary bridge structure for municipal road bridge construction includes steel pipe piles driven into the ground at the bottom. A column is arranged inside the steel pipe piles, and the bottom of the column is driven into the ground. Multiple groups of spring support mechanisms are installed on the column at intervals along its axial direction. Each group of spring support mechanisms includes a plurality of spring support mechanisms distributed in a ring centered on the column. The multiple groups of spring support mechanisms are used to assist in supporting the steel pipe piles to improve the stability of the steel pipe piles. Arranging the column and multiple groups of spring support mechanisms inside the steel pipe piles forms a central support structure, which can improve the stability of the steel pipe piles and reduce the probability of tilting during their use.

[0007] Further limitation: each of the spring support mechanisms is composed of a roller, a U-shaped wheel frame, a U-shaped support plate, a guide rod, and a spring; the roller is rotatably installed on the U-shaped wheel frame, both ends of the U-shaped support plate are welded to the outer sidewall of the column, one end of the guide rod is welded to the U-shaped wheel frame, the other end thereof penetrates through the U-shaped support plate and is provided with a limit nut, the limit nut is located inside the U-shaped support plate, the spring is sleeved on the guide rod and is located between the U-shaped wheel frame and the U-shaped support plate, the spring is in a compressed state and has elastic potential energy. When the spring support mechanism is installed inside the steel pipe pile along with the column, it can maintain the stability of the steel pipe pile and the column under the elastic force of the spring.

[0008] Further limitation: a top sleeve is provided at the top of the steel pipe pile, there is a step inside the top sleeve, the lower section of the top sleeve is sleeved on the top of the steel pipe pile, and the step surface abuts against the top surface of the steel pipe pile, so as to support the top sleeve; the channel above the step surface inside the top sleeve is a variable-diameter channel, and the minimum inner diameter of the variable-diameter channel is equal to the inner diameter of the steel pipe pile; after the bottom of the steel pipe pile is driven into the ground, when installing the column inside the steel pipe pile, each spring support mechanism is loaded into the steel pipe pile from the top of the top sleeve along with the column. As the column is driven downward into the steel pipe pile by an external force, the roller can roll on the inner wall of the top sleeve and the inner wall of the steel pipe pile, and each spring of each group of spring support mechanisms is radially extruded, so as to further compress the spring, improve the support effect of each group of spring support mechanisms between the steel pipe pile and the column, prevent the spring from being too loose, and the rolling of the roller can reduce the friction resistance.

[0009] Further limitation: a first hoop is installed at the top of the steel pipe pile, flanges are integrally formed at the top end of the first hoop and the bottom end of the top sleeve, and the flange at the bottom end of the top sleeve and the flange at the top end of the first hoop are fixedly connected by a plurality of bolts distributed in a ring, so as to improve the stability of the top sleeve and prevent it from loosening and falling off.

[0010] Further limitation: a clamping groove for installing a cross beam is provided at the top end of the top sleeve, and two bracket feet for assisting in supporting the cross beam are welded to the outer sidewall at the top end of the top sleeve. The top surface of the bracket feet is flush with the bottom surface of the clamping groove, which can improve the stability of the cross beam.

[0011] Further limitation: a top plug is installed at the top end of the column, the top plug is located inside the top sleeve, and the outer sidewall of the top plug is in clearance contact with the inner sidewall of the upper section of the top sleeve. The top plug can help maintain the stability of the column; a threaded hole for installing a hook is provided on the top surface of the top plug. When disassembling the temporary steel structure bridge, the hook is installed in the threaded hole of the top plug, and the column can be pulled out by using a crawler crane to hook the hook.

[0012] Further limitation: There are four steel pipe piles, and the four steel pipe piles form a pier. The four steel pipe piles are arranged in a double-row distribution structure; two second hoops are installed on the outer side wall of each steel pipe pile at intervals along its axial direction; two U-shaped brackets with upward openings are welded on the outer side wall of each second hoop. Two horizontally arranged and vertically arranged parallel connection steel pipes are arranged between adjacent steel pipe piles in a vertical and horizontal arrangement, and the two ends of the parallel connection steel pipes are respectively clamped into the U-shaped brackets on the two steel pipe piles. The U-shaped brackets can support the parallel connection steel pipes. A U-shaped bolt for clamping and fixing the parallel connection steel pipe is installed on each U-shaped bracket to prevent the parallel connection steel pipe from disengaging from the U-shaped bracket; two positioning rings are welded on the outer side wall of each steel pipe pile, and the two positioning rings are respectively located at the bottom of the two second hoops and are used for limiting and supporting the second hoops to prevent the second hoops from falling down; each parallel connection steel pipe connects each steel pipe pile together, improving the stability of the steel pipe pile. The pier structure composed of the above four steel pipe piles and eight parallel connection steel pipes is stable. Different from the traditional welding fixing method, the second hoops and the parallel connection steel pipes are detachable structures, which is convenient for disassembly and assembly.

[0013] Further limitation: Connecting sleeves are sleeved on both ends of each parallel connection steel pipe. Two diagonal connection steel plates in an X-shaped cross are arranged between the two horizontally arranged parallel connection steel pipes. The ends of the diagonal connection steel plates are welded to the connecting sleeves on the parallel connection steel pipes. The diagonal connection steel plates can improve the stability of adjacent steel pipe piles, thereby improving the stability of the pier. Different from the traditional welding fixing method, the connection between the diagonal connection steel plates and the parallel connection steel pipes is a detachable connection structure, which is convenient for disassembly and assembly.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The steel structure temporary bridge structure plays an important role as a construction passage and a construction platform in the construction of municipal road bridges. The steel pipe piles driven into the ground in the steel structure temporary bridge structure are important components for supporting the upper structure and load of the bridge. In the prior art, a crawler crane is used in cooperation with a vibratory hammer to drive the bottom of the steel pipe pile into the ground. The inside of the steel pipe pile is a hollow structure. Different from this, in the utility model, a column driven into the ground is arranged inside the steel pipe pile, and multiple groups of spring support mechanisms are installed on the column to form a support in the annular space between the steel pipe pile and the column. The column and the multiple groups of spring support mechanisms arranged inside the steel pipe pile form a central support structure in the steel pipe pile, which can improve the stability of the steel pipe pile and reduce the probability of tilting during its use. Description of the Drawings

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 It is a schematic cross-sectional structure diagram of a steel pipe pile in the present invention;

[0018] Figure 2 For Figure 1 It is a schematic enlarged view of the local structure at A in

[0019] Figure 3 It is an exploded structure diagram of the steel pipe pile in the present invention;

[0020] Figure 4 It is a three-dimensional structure diagram of a pier in the present invention.

[0021] Names of each component in the figure: 1. Steel pipe pile, 2. Column, 3. Spring support mechanism, 3.1. Roller, 3.2. U-shaped wheel frame, 3.3. U-shaped support plate, 3.4. Guide rod, 3.5. Spring, 4. Top sleeve, 5. Top plug, 6. Card slot, 7. Bracket, 8. First hoop, 8.1. First arc-shaped splint, 9. Second hoop, 9.1. Second arc-shaped splint, 10. U-shaped support plate, 11. Positioning ring, 12. Tapered head, 13. Threaded hole, 14. Connecting sleeve, 15. Horizontal connecting steel pipe, 16. Diagonal connecting steel plate, 17. U-shaped bolt. Specific embodiments

[0022] The following will describe in detail the embodiments of the technical solutions of the present invention with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0023] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 of the present invention.

[0024] Embodiment 1

[0025] A temporary steel bridge structure for municipal road bridge construction, such as Figure 1As shown, it includes steel pipe piles 1 driven into the ground at the bottom. Inside the steel pipe piles 1, there are columns 2, and the bottoms of the columns 2 are driven into the ground. Multiple sets of spring support mechanisms 3 are installed on the columns 2 at intervals along their axial directions. Each set of spring support mechanisms 3 includes multiple spring support mechanisms 3 distributed in a ring centered on the column 2. The multiple sets of spring support mechanisms 3 are used to assist in supporting the steel pipe piles 1 to improve the stability of the steel pipe piles 1. Setting the columns 2 and multiple sets of spring support mechanisms 3 inside the steel pipe piles 1 forms a central support structure, which can improve the stability of the steel pipe piles 1 and reduce the probability of tilting during their use.

[0026] Preferably, as Figure 1 and Figure 2 shown, in this embodiment, each spring support mechanism 3 is composed of a roller 3.1, a U-shaped wheel frame 3.2, a U-shaped support plate 3.3, a guide rod 3.4, and a spring 3.5. The roller 3.1 is rotatably installed on the U-shaped wheel frame 3.2. Both ends of the U-shaped support plate 3.3 are welded to the outer side wall of the column 2. One end of the guide rod 3.4 is welded to the U-shaped wheel frame 3.2, and the other end thereof passes through the U-shaped support plate 3.3 and is provided with a limit nut, and the limit nut is located inside the U-shaped support plate 3.3. The spring 3.5 is sleeved on the guide rod 3.4 and is located between the U-shaped wheel frame 3.2 and the U-shaped support plate 3.3. The spring 3.5 is in a compressed state and has elastic potential energy. When the spring support mechanism 3 is installed inside the steel pipe pile 1 along with the column 2, under the elastic force of the spring 3.5, the stability of the steel pipe pile 1 and the column 2 can be maintained.

[0027] Preferably, as Figure 1 and Figure 2 shown, in this embodiment, a top sleeve 4 is provided at the top of the steel pipe pile 1. There is a step inside the top sleeve 4. The lower section of the top sleeve 4 is sleeved on the top of the steel pipe pile 1, and the step surface abuts against the top surface of the steel pipe pile 1, thereby being able to support the top sleeve 4. The channel above the step surface inside the top sleeve 4 is a variable-diameter channel, and the minimum inner diameter of the variable-diameter channel is equal to the inner diameter of the steel pipe pile 1. After the bottom of the steel pipe pile 1 is driven into the ground, when installing the column 2 inside the steel pipe pile 1, each spring support mechanism 3 is loaded into the top sleeve 4 from the top along with the column 2. As the column 2 is driven downward into the steel pipe pile 1 by an external force, the roller 3.1 rolls on the inner wall of the top sleeve 4 and the inner wall of the steel pipe pile 1. Each spring 3.5 of each set of spring support mechanisms 3 is radially extruded, thereby being able to further compress the spring 3.5 and improve the support effect of each set of spring support mechanisms 3 between the steel pipe pile 1 and the column 2 to prevent the spring 3.5 from being too loose, and the rolling of the roller 3.1 can reduce the friction resistance.

[0028] Preferably, as Figures 1 to 3As shown in the figure, in this embodiment, a first hoop 8 is installed at the top of the steel pipe pile 1. Flanges are integrally formed at the top end of the first hoop 8 and the bottom end of the top sleeve 4. The flange at the bottom end of the top sleeve 4 and the flange at the top end of the first hoop 8 are fixedly connected by a plurality of bolts distributed in a ring, so as to improve the stability of the top sleeve 4 and prevent it from loosening and falling off.

[0029] Specifically, the first hoop 8 is composed of two first arc-shaped clamping plates 8.1. Both of the two first arc-shaped clamping plates 8.1 are clamped on the outer wall of the steel pipe pile 1, and both ends of the two first arc-shaped clamping plates 8.1 are fixedly connected by bolts, so as to fix the first hoop 8 on the outer wall of the steel pipe pile 1, which is convenient for disassembly and assembly.

[0030] Preferably, as Figure 1 shown in the figure, in this embodiment, a tapered head 12 is installed at the bottom end of the column 2. With the action of the tapered head 12, it is easier to drive the bottom of the column 2 into the ground.

[0031] Preferably, as Figure 1 and Figure 2 shown in the figure, in this embodiment, a top plug 5 is installed at the top end of the column 2. The top plug 5 is located inside the top sleeve 4. The outer wall of the top plug 5 is in clearance contact with the inner wall of the upper section of the top sleeve 4. The top plug 5 can help maintain the stability of the column 2; a threaded hole 13 for installing a hook is opened on the top surface of the top plug 5. When disassembling the temporary steel structure bridge, install the hook on the threaded hole 13 of the top plug 5, and the column 2 can be pulled out by using a crawler crane to hook the hook.

[0032] It should be noted here that in this embodiment, the above-mentioned various components are all made of steel.

[0033] The working principle and technical effect of this embodiment are as follows:

[0034] In the construction of municipal road bridges, when constructing a steel temporary bridge structure over a river, the steel pipe piles 1 driven into the ground are important components for supporting the upper structure and load of the bridge. In the prior art, a crawler crane is used in cooperation with a vibratory hammer to drive the bottom of the steel pipe pile 1 into the ground. The inside of the steel pipe pile 1 is a hollow structure and lacks a further central support structure. In this embodiment, a column 2 is arranged inside the steel pipe pile 1. The crawler crane is used in cooperation with the vibratory hammer to drive the bottom of the column 2 into the ground. Multiple sets of spring support mechanisms 3 are installed on the column 2. When the spring support mechanism 3 is inserted into the steel pipe pile 1 from the top opening of the top sleeve 4, its spring 3.5 is in a preliminary compressed state. As the column 2 is further driven into the steel pipe pile 1, the spring 3.5 enters the steel pipe pile 1 through the variable-diameter channel inside the top sleeve 4, and the spring 3.5 is further compressed under radial extrusion. The rollers 3.1 can roll on the inner walls of the top sleeve 4 and the steel pipe pile 1 to reduce friction. Multiple sets of spring support mechanisms 3 form a support in the annulus between the steel pipe pile 1 and the column 2. The column 2 and multiple sets of spring support mechanisms 3 arranged inside the steel pipe pile 1 form a central support structure, which can improve the stability of the steel pipe pile 1 and reduce the probability of tilting during its use.

[0035] Embodiment 2

[0036] A steel temporary bridge structure for municipal road bridge construction, as Figure 4 shown, the difference from Embodiment 1 is that: four steel pipe piles 1 are provided, and the four steel pipe piles 1 form a pier. The four steel pipe piles 1 are arranged in a double-row distribution structure; two second hoops 9 are installed on the outer side wall of each steel pipe pile 1 at intervals along its axial direction; two U-shaped support plates 10 with upward openings are welded on the outer side wall of each second hoop 9. Two horizontal connection steel pipes 15 are arranged in a vertical and horizontal distribution between adjacent two steel pipe piles 1 in the horizontal row and the vertical row, and the two ends of the horizontal connection steel pipe 15 are respectively clamped into the U-shaped support plates 10 on the two steel pipe piles 1. The U-shaped support plates 10 can support the horizontal connection steel pipe 15. A U-shaped bolt 17 for clamping and fixing the horizontal connection steel pipe 15 is installed on each U-shaped support plate 10 to prevent the horizontal connection steel pipe 15 from detaching from the U-shaped support plate 10; two positioning rings 11 are welded on the outer side wall of each steel pipe pile 1, and the two positioning rings 11 are respectively located at the bottoms of the two second hoops 9 and are used for limiting and supporting the second hoops 9 to prevent the second hoops 9 from falling down; each horizontal connection steel pipe 15 connects the steel pipe piles 1 together, improving the stability of the steel pipe piles 1. Different from the traditional welding fixing method, the second hoops 9 and the horizontal connection steel pipes 15 are detachable structures, which are convenient for disassembly and assembly;

[0037] Specifically, as Figure 3As shown, the second hoop 9 is composed of two second arc-shaped clamping plates 9.1. Both of the two second arc-shaped clamping plates 9.1 are clamped on the outer wall of the steel pipe pile 1, and both ends of the two second arc-shaped clamping plates 9.1 are fixedly connected by bolts, thereby fixing the second hoop 9 on the outer wall of the steel pipe pile 1, which is convenient for disassembly and assembly.

[0038] Preferably, as Figure 3 and Figure 4 shown, in this embodiment, connection sleeves 14 are sleeved on both ends of each of the horizontal connection steel pipes 15. Two diagonal connection steel plates 16 that cross in an X shape are arranged between the two horizontally distributed horizontal connection steel pipes 15, and the ends of the diagonal connection steel plates 16 are welded to the connection sleeves 14 on the horizontal connection steel pipes 15. The diagonal connection steel plates 16 can improve the stability of adjacent steel pipe piles 1, thereby improving the stability of the bridge pier. Different from the traditional welded fixing method, the connection between the diagonal connection steel plates 16 and the horizontal connection steel pipes 15 is a detachable connection structure, which is convenient for disassembly and assembly.

[0039] Preferably, as Figures 1 to 4 shown, in this embodiment, a clamping groove 6 for installing a cross beam is opened at the top end of the top sleeve 4. Two bracket legs 7 for assisting in supporting the cross beam are welded on the outer wall of the top end of the top sleeve 4, and the top surface of the bracket legs 7 is flush with the groove bottom surface of the clamping groove 6, which can improve the stability of the cross beam.

[0040] It should be noted here that in this embodiment, each of the above components is made of steel.

[0041] It should be noted here that the above steel pipe pile 1 and the bridge pier structure composed of the steel pipe pile 1, the horizontal connection steel pipe 15, the diagonal connection steel plate 16, etc. are all part of the steel structure temporary bridge structure. In fact, the steel structure temporary bridge structure also includes components such as a cross beam installed on the top of the bridge pier, a Bailey beam installed on the cross beam, and a bridge deck installed on the Bailey beam. The above structures are well-known technologies and will not be elaborated here.

[0042] The working principle and technical effect of this embodiment are as follows:

[0043] During the construction of a municipal road bridge, when building a steel structure temporary bridge structure on a river, the four steel pipe piles 1 driven into the ground form a bridge pier, which is an important component for supporting the upper structure and load of the bridge. In the prior art, the horizontal connection steel pipe 15 and the diagonal connection steel plate 16 are welded between the four steel pipe piles 1 distributed in a double-row structure to enhance the stability of the steel pipe piles 1 and the bridge pier, but it is more troublesome to disassemble;

[0044] In this embodiment, between the four steel pipe piles 1 constituting the bridge pier, horizontal connection steel pipes 15 and diagonal connection steel plates 16 are also provided to enhance the stability of the steel pipe piles 1 and the bridge pier. However, by detachably installing a second hoop 9 on the steel pipe pile 1, a U-shaped support plate 10 is installed on the second hoop 9 for detachably installing the horizontal connection steel pipe 15, and the diagonal connection steel plate 16 is detachably installed on the horizontal connection steel pipe 15, so that the overall structural stability of the bridge pier is good and it is also convenient for disassembly and assembly.

[0045] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A temporary steel bridge structure for municipal road and bridge construction, comprising steel pipe piles (1) driven into the ground at the bottom, characterized in that: Inside the steel pipe pile (1), a column (2) is arranged, and the bottom of the column (2) is driven into the ground; multiple groups of spring support mechanisms (3) are installed on the column (2) at intervals along its axis. Each group of spring support mechanisms (3) includes a plurality of spring support mechanisms (3) distributed annularly with the column (2) as the center. The multiple groups of spring support mechanisms (3) are used to assist in supporting the steel pipe pile (1).

2. The temporary steel bridge structure for municipal road and bridge construction according to claim 1, characterized in that: Each spring support mechanism (3) is composed of a roller (3.1), a U-shaped wheel frame (3.2), a U-shaped support plate (3.3), a guide rod (3.4), and a spring (3.5); the roller (3.1) is rotatably installed on the U-shaped wheel frame (3.2). Both ends of the U-shaped support plate (3.3) are welded to the outer side wall of the column (2). One end of the guide rod (3.4) is welded to the U-shaped wheel frame (3.2), and the other end thereof penetrates through the U-shaped support plate (3.3) and is provided with a limit nut, and the limit nut is located inside the U-shaped support plate (3.3). The spring (3.5) is sleeved on the guide rod (3.4) and is located between the U-shaped wheel frame (3.2) and the U-shaped support plate (3.3).

3. The temporary steel bridge structure for municipal road and bridge construction according to claim 2, wherein: A top sleeve (4) is arranged at the top of the steel pipe pile (1). There is a step inside the top sleeve (4). The lower section of the top sleeve (4) is sleeved on the top of the steel pipe pile (1), and the step surface abuts against the top surface of the steel pipe pile (1); the channel above the inner step surface of the top sleeve (4) is a variable-diameter channel, and the minimum inner diameter of the variable-diameter channel is equal to the inner diameter of the steel pipe pile (1).

4. The temporary steel bridge structure for municipal road and bridge construction according to claim 3, characterized in that: A first hoop (8) is installed at the top of the steel pipe pile (1). Flanges are integrally formed at the top end of the first hoop (8) and the bottom end of the top sleeve (4). The flange at the bottom end of the top sleeve (4) and the flange at the top end of the first hoop (8) are fixedly connected by a plurality of bolts distributed annularly.

5. The temporary steel bridge structure for municipal road and bridge construction according to claim 3 or 4, characterized in that: A card slot (6) for installing a cross beam is opened at the top end of the top sleeve (4). Two bracket legs (7) for assisting in supporting the cross beam are welded to the outer side wall at the top end of the top sleeve (4), and the top surface of the bracket legs (7) is flush with the bottom surface of the card slot (6).

6. The temporary steel bridge structure for municipal road and bridge construction according to claim 3, characterized in that: A top plug (5) is installed at the top end of the column (2). The top plug (5) is located inside the top sleeve (4), and the outer side wall of the top plug (5) is in clearance contact with the inner side wall of the upper section of the top sleeve (4).

7. The temporary steel bridge structure for municipal road and bridge construction according to claim 1, characterized in that: There are four steel pipe piles (1). The four steel pipe piles (1) form a bridge pier, and the four steel pipe piles (1) are distributed in a double-row structure; two second hoops (9) are installed on the outer side wall of each steel pipe pile (1) at intervals along its axis; two U-shaped support plates (10) with upward openings are welded to the outer side wall of each second hoop (9). Two horizontal connection steel pipes (15) are arranged vertically between adjacent two steel pipes (1) in the horizontal row and the vertical row, and both ends of the horizontal connection steel pipe (15) are respectively clamped into the U-shaped support plates (10) on the two steel pipe piles (1). A U-shaped bolt (17) for clamping and fixing the horizontal connection steel pipe (15) is installed on each U-shaped support plate (10).

8. The temporary steel bridge structure for municipal road and bridge construction according to claim 7, characterized in that: Two positioning rings (11) are welded to the outer sidewall of each steel pipe pile (1). The two positioning rings (11) are respectively located at the bottoms of the two second hoops (9) and are used for limiting and supporting the second hoops (9).

9. The temporary steel bridge structure for municipal road and bridge construction according to claim 7 or 8, characterized in that: Connection sleeves (14) are sleeved on both ends of each horizontal bracing steel pipe (15). Two diagonal bracing steel plates (16) that cross in an X shape are arranged between the two horizontally distributed horizontal bracing steel pipes (15), and the ends of the diagonal bracing steel plates (16) are welded to the connection sleeves (14) on the horizontal bracing steel pipes (15).

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