Improved limiting device for mounting Bailey steel temporary bridge

Abstract

The utility model discloses an improved limiting device for mounting a Bailey steel temporary bridge. The improved limiting device comprises a bottom plate (1), the plurality of connecting columns (2) are respectively connected to the bottom of the bottom plate (1); the transverse limiting device (3) is connected to the upper portion of the bottom plate (1); the longitudinal limiting device (4) is connected to one end of the upper part of the bottom plate (1); and the longitudinal restraining device (5) is arranged above the bottom plate (1) close to one end of the longitudinal limiting device (4). The transverse and longitudinal displacement of the Bailey bridge can be reduced, the damage and maintenance cost is reduced, the service life of the bridge is prolonged, the stability of the Bailey steel temporary bridge is improved, the collision or the overall displacement of the bridge structure is avoided, the safety of road traffic is improved, the smoothness and the traffic efficiency of the road are guaranteed, and the traffic jam is improved. The traffic efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a limit seat, in particular to an improved limit device for installing a Bailey steel temporary bridge, which is mainly used to restrict the displacement of the Bailey steel temporary bridge in the horizontal and vertical directions, protect the steel temporary bridge and abutments, increase the durability of the temporary bridge, and ensure the safety of the steel temporary bridge during use, and belongs to the technical field of auxiliary construction supplies. Background Art

[0002] Generally speaking, Bailey bridges are favored for their rapid erection, high reliability and strong adaptability. They are often used in disaster relief, engineering construction and temporary traffic passages, providing people with a fast and effective solution to cross terrain obstacles.

[0003] Bailey bridges use standardized steel bridge decks and piers, which can be quickly assembled into bridge structures without the need for large lifting equipment. This bridge system is easy to assemble, transport and install quickly, and can build a temporary bridge with a strong load-bearing capacity in a short period of time to solve the problem of traffic interruption or impassability.

[0004] During the construction process, the Bailey steel bridge needs to be erected according to the actual terrain conditions. If the terrain is complex or irregular, additional adjustments and reinforcements may be required to ensure the stability and safety of the bridge.

[0005] The traditional way is to increase support: add additional support points at the bottom of the bridge to increase the stability and bearing capacity of the bridge, and the other is to strengthen the connectors: by increasing the number or density of connectors, strengthen the connection between the various parts of the bridge, and improve the stability and wind resistance of the overall structure. This method requires the use of more bolts, pins and other connectors to ensure that the various parts of the bridge are tightly connected; both of the above methods are time-consuming and labor-intensive to install, and may not effectively improve the overall structural stability of the Bailey steel temporary bridge, especially in the face of complex terrain or severe weather conditions, the stability of the bridge may not be effectively guaranteed. More frequent maintenance and overhaul are required, which increases the maintenance cost and difficulty, and may not effectively improve the bearing capacity of the bridge, limiting the scope of use and safety of the bridge in specific situations.

[0006] After searching, the closest prior art is CN218756949U - a limit device for connecting Bailey beams and load-bearing crossbeams. This technology is a limit device for connecting Bailey beams and load-bearing crossbeams. The Bailey beams and load-bearing crossbeams are connected and fixed by U-shaped blocks and limit bolts on both sides of the Bailey plates. The U-shaped blocks limit the lateral displacement of the Bailey beams, and the limit bolts limit the longitudinal displacement and overturning of the Bailey beams. This application is to limit and reinforce the connection between the Bailey plates and the abutment supports in the longitudinal direction of the Bailey bridge by setting lateral and longitudinal limit steel plates and gaskets, so as to achieve the stability and safety of the entire Bailey bridge body. The existing problems are: 1. The existing technology solves the displacement problem of the connection between the Bailey beams and the load-bearing crossbeams. For the existing technology of Bailey bridges with small spans and no load-bearing crossbeams, it cannot solve the longitudinal and lateral displacement problems of the Bailey bridge body. The prior art CN218989867U is a bridge limit device suitable for columnar piers. This limit technology is mainly used in permanent bridges with columnar piers. This technology is mainly used to solve the longitudinal and lateral displacement problems of Bailey temporary bridges when they are supported by abutments.

[0007] Therefore, the key to solving the above technical problems is to develop an improved limiting device for the installation of Bailey steel temporary bridges with strong practicability and high working reliability. Summary of the invention

[0008] In view of the many defects and shortcomings existing in the above-mentioned background technology, the present invention has made improvements and innovations thereto, with the aim of providing a safe, reliable and practical improved limiting device for the installation of Bailey steel temporary bridges, which can reduce the lateral and longitudinal displacements of the Bailey bridge, thereby reducing damage and maintenance costs and extending the service life of the bridge.

[0009] Another invention purpose of the utility model is to increase the stability of the Bailey steel temporary bridge, so as to avoid collision or overall displacement of the bridge structure, improve the safety of road traffic, and at the same time ensure the smooth flow of roads and traffic efficiency, improve traffic congestion, and improve traffic efficiency.

[0010] In order to solve the above problems and achieve the above invention objectives, the utility model is an improved limit device for installing Bailey steel temporary bridge, which is realized by adopting the following design structure and the following technical solution:

[0011] As an improvement of the limit device for installing a Bailey steel temporary bridge of the utility model, the improvement includes:

[0012] Bottom plate (1);

[0013] A plurality of connecting columns (2), wherein the plurality of connecting columns (2) are connected to the bottom of the base plate (1);

[0014] A transverse limiting device (3), the transverse limiting device (3) is connected above the bottom plate (1);

[0015] Longitudinal limiting device (4), the longitudinal limiting device (4) is connected to one end above the bottom plate (1);

[0016] Longitudinal restraint device (5), the longitudinal restraint device (5) is arranged above the bottom plate (1) at one end close to the longitudinal limiting device (4).

[0017] As an improvement of the above-mentioned utility model, it further includes a cushion block (6), the cushion block (6) is arranged between the longitudinal limiting device (4) and the longitudinal restraint device (5), wherein, the cushion block (6) is a rubber pad.

[0018] As a further improvement of the above-mentioned utility model, it further includes a protective pad (7), the protective pad (7) is arranged in the limiting groove of the transverse limiting device (3), wherein, the protective pad (7) is a lining rubber gasket.

[0019] As a further improvement of the above-mentioned utility model, the bottom plate (1) is a square plate-like structure, and at least one through hole is formed through the bottom plate (1).

[0020] As a further improvement of the above-mentioned utility model, the connecting column (2) is a cylindrical structure, and the connecting columns (2) are respectively vertically and fixedly connected to the bottom of the bottom plate (1) at equal or unequal distances.

[0021] As a further improvement of the above-mentioned utility model, the transverse limiting device (3) includes:

[0022] Limiting plates (31), the limiting plates (31) are connected to each other relatively above the bottom plate (1);

[0023] Reinforcing ribs (32), the reinforcing ribs (32) are connected to the outer sides of the two limiting plates (31) at equal or unequal distances.

[0024] As a further improvement of the above-mentioned utility model, the longitudinal limiting device (4) is integrally in a "C" - shaped structure, and the longitudinal limiting device (4) includes: vertical connecting pieces (41), the vertical connecting pieces (41) are symmetrically and vertically connected above the bottom plate (1), and the vertical connecting pieces (41) are respectively located on the outer sides of the corresponding side limiting plates (31);

[0025] Transverse connecting piece (42), the transverse connecting piece (42) is connected between the upper parts of the two vertical connecting pieces (41).

[0026] As a further improvement of the above-mentioned utility model, both the vertical connecting piece (41) and the transverse connecting piece (42) are made of channel steel, and the openings of the vertical connecting piece (41) and the transverse connecting piece (42) are on the same side.

[0027] As a further improvement of the above-mentioned utility model, the longitudinal restraining device (5) comprises:

[0028] A longitudinal restraining pad (51), wherein the longitudinal restraining pad (51) is made of channel steel;

[0029] A positioning column (52), the positioning column (52) is symmetrically and vertically connected to the lower end of the longitudinal restraining pad (51);

[0030] The opening of the longitudinal restraining pad (51) is opposite to the opening of the transverse connecting member (42).

[0031] As a further improvement of the above-mentioned utility model, the height of the longitudinal restraining device (5) is consistent with the height of the longitudinal limiting device (4), and the positioning column (52) is used to cooperate with the positioning hole provided at one end of the transverse Bailey frame (8) to complete the work.

[0032] The working principle is as follows: before use, the improved limiting device for installing a Bailey steel temporary bridge of the utility model is first prefabricated and processed in a factory to form a complete bottom plate (1) and a reinforcing rib (32);

[0033] When in use, the operator transports the various components of the utility model to the site, and then the operator welds several connecting columns (2) to the bottom of the base plate (1) on site to form a whole. When the workers are tying the abutment steel bars, the operator pre-buries the base plate (1) and the connecting column (2) connection assembly into the abutment, adjusts the elevation of the base plate (1), and pours the abutment concrete to ensure that the base plate (1) and the abutment concrete surface are at the same level.

[0034] Then, the operator installs the protective pad (7) on the bottom plate (1), then hoists the longitudinal Bailey frame (9) and places it on the protective pad (7), and then welds the limit plates (31) on both sides of the bottom plate (1) close to the edges of the longitudinal Bailey frame (9). After the limit plates (31) on both sides are welded, a plurality of reinforcing ribs (32) are evenly welded on the outer sides of each limit plate (31) to reinforce the limit.

[0035] Next, the operator hoists the transverse Bailey frame (8) into the limiting groove formed by the two limiting plates (31) and the bottom plate (1), and then the operator inserts the positioning column (52) of the longitudinal restraining device (5) into the positioning hole of the transverse Bailey frame (8);

[0036] Then, the operator welds the lower end of the vertical connection piece (41) of the longitudinal limit device (4) to the bottom plate (1) near the end of the longitudinal restraint device (5), and then clamps the installation pad (6) between the transverse connection piece (42) and the longitudinal restraint pad (51);

[0037] Finally, the lateral displacement of the lateral Bailey frame (8) is constrained by the lateral limiting device (3), and the Bailey steel temporary bridge is clamped by the joint action of the longitudinal limiting device (4), the longitudinal restraining device (5) and the pad (6), thereby constraining the longitudinal displacement of the longitudinal Bailey frame (9).

[0038] Compared with the prior art, the utility model has the following beneficial effects:

[0039] 1. The utility model optimizes and improves the existing bridge structure, adopts simple and low-cost materials such as embedded bottom plate, connecting column and protective pad (7), thereby reducing the renovation cost and improving the renovation efficiency;

[0040] 2. The utility model reduces the lateral and longitudinal displacement of the Bailey bridge, reduces damage and maintenance costs, and extends the service life of the bridge;

[0041] 3. The utility model helps to avoid collision or overall displacement of bridge structures, thus improving the safety of road traffic;

[0042] 4. The utility model reduces the damage to the Bailey bridge, ensures the smooth flow of roads and traffic efficiency, and has a positive impact on improving traffic congestion and improving traffic efficiency;

[0043] 5. The utility model ensures the stable operation of urban traffic and improves the construction efficiency of urban infrastructure by improving the safety and durability of the Bailey Bridge.

[0044] 6. The protective pad (7) of the utility model can play a role in limiting the position of the transverse Bailey frame (8) and providing protective support;

[0045] 7. The utility model can better restrain the horizontal lateral displacement of the lateral Bailey frame (8) by pre-embedding the bottom plate (1) and the connecting column (2) of the concrete abutment and welding the lateral limit device (3) on the bottom plate (1);

[0046] 8. The utility model can better limit the longitudinal displacement of the longitudinal Bailey frame (9) through the longitudinal limiting device (4), the longitudinal restraining device (5) and the cushion block (6). BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0048] Figure 1 This is one of the use state diagrams of the utility model;

[0049] Figure 2 This is the second usage state diagram of the utility model;

[0050] Figure 3This is the third use state diagram of the utility model;

[0051] Figure 4 This is the fourth use state diagram of the utility model;

[0052] Figure 5 It is a schematic diagram of the overall structure of the utility model;

[0053] Figure 6 It is a partial structural schematic diagram of the utility model;

[0054] Figure 7 It is a schematic structural diagram of the components of the longitudinal limiting device (4) of the utility model;

[0055] Figure 8 It is a schematic diagram of the connection relationship between the longitudinal restraint device (5) component and the cushion block (6) component of the utility model;

[0056] Among them, the numbers in the figure are: 1—bottom plate;

[0057] 2—Connecting column;

[0058] 3—lateral limiting device, 31—limiting plate, 32—strengthening rib;

[0059] 4—longitudinal limit device, 41—vertical connector, 42—transverse connector;

[0060] 5—longitudinal restraint device, 51—longitudinal restraint pad, 52—positioning column;

[0061] 6—pad;

[0062] 7—Protective pad;

[0063] 8—transverse Bailey frame;

[0064] 9—Longitudinal Bailey rack. DETAILED DESCRIPTION

[0065] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0066] As the instruction manual Figure 1 To the instruction manual Figure 8 An improved limiting device for installing a Bailey steel temporary bridge is shown, comprising:

[0067] Bottom plate 1;

[0068] A plurality of connecting columns 2 are connected to the bottom of the base plate 1;

[0069] A transverse limiting device 3, the transverse limiting device 3 is connected above the bottom plate 1;

[0070] A longitudinal limiting device 4, the longitudinal limiting device 4 is connected to one end above the bottom plate 1;

[0071] The longitudinal restraining device 5 is arranged above the bottom plate 1 near one end of the longitudinal limiting device 4 .

[0072] Further, such as Figure 3 As shown, it also includes a cushion block 6, which is arranged between the longitudinal limiting device 4 and the longitudinal restraining device 5, wherein the cushion block 6 is a rubber cushion.

[0073] Further, such as Figure 5 and Figure 6 As shown, it also includes a protective pad 7, which is arranged in the limiting groove of the lateral limiting device 3, wherein the protective pad 7 is a rubber-lined gasket.

[0074] Further, such as Figure 5 As shown, the bottom plate 1 is a square plate-shaped structure, and at least one through hole is formed through the bottom plate 1 .

[0075] In the present invention, the through holes on the bottom plate 1 can be used to embed studs and then pass through the through holes of the transverse Bailey frame 8 and then be firmly connected together through nuts, so as to better limit the movement of the transverse Bailey frame 8.

[0076] Further, such as Figure 5 and Figure 6 As shown, the connecting column 2 is a cylindrical structure, and the connecting column 2 is vertically fixedly connected to the bottom of the base plate 1 at equal or unequal distances.

[0077] In the present invention, the connecting columns 2 are embedded parts; the connecting columns 2 are respectively and equidistantly and vertically fixedly connected to the bottom of the base plate 1 .

[0078] Further, such as Figure 6 As shown, the lateral limiting device 3 includes:

[0079] Limiting plates 31, the limiting plates 31 are connected to each other above the bottom plate 1 in a manner opposite to each other;

[0080] The reinforcing ribs 32 are connected to the outer sides of the two limiting plates 31 at equal or unequal distances.

[0081] In the present invention, the protective pad 7 is arranged in a limiting groove formed by two limiting plates 31 and the bottom plate 1; and the reinforcing ribs 32 are respectively and equidistantly vertically connected to the outer sides of the two limiting plates 31 .

[0082] Further, such as Figure 7 As shown in the figure, the longitudinal limiting device 4 is integrally in a "C" - shaped structure. The longitudinal limiting device 4 includes: a vertical connecting member 41, which is symmetrically and perpendicularly connected above the bottom plate 1, and the vertical connecting members 41 are respectively located outside the corresponding side limiting plates 31;

[0083] a transverse connecting member 42, which is connected between the upper parts of the two vertical connecting members 41.

[0084] Specifically, as Figure 7 shown in the figure, both the vertical connecting member 41 and the transverse connecting member 42 are made of channel steel, and the openings of the vertical connecting member 41 and the transverse connecting member 42 are on the same side.

[0085] Furthermore, as Figure 8 shown in the figure, the longitudinal restraint device 5 includes:

[0086] a longitudinal restraint backing plate 51, which is made of channel steel;

[0087] positioning columns 52, which are symmetrically and perpendicularly connected to the lower end of the longitudinal restraint backing plate 51;

[0088] Among them, the opening of the longitudinal restraint backing plate 51 is opposite to the opening of the transverse connecting member 42.

[0089] Furthermore, as Figure 8 shown in the figure, the height of the longitudinal restraint device 5 is consistent with the height of the longitudinal limiting device 4, and the positioning columns 52 are used to cooperate with the positioning holes provided at one end of the transverse Bailey truss 8 to complete the work.

[0090] In the present utility model, the positioning columns 52 are positioning steel bars, and one end of the transverse Bailey truss 8 is provided with positioning holes adapted to the positioning steel bars.

[0091] In the present utility model, rubber pads are used for isolation at the contact parts between the transverse limiting device 3, the longitudinal limiting device 4, and the longitudinal restraint device 5 and the Bailey truss to reduce the vibration of the support.

[0092] Example project

[0093] The present utility model is applied to the project of the east - third - ring A - section from Luoya Interchange to Guangchang Interchange of the third - ring closure project in Kunming City. It is located at the intersection of Guangfu Road and Changhong Road in Kunming City. There is a flood - drainage channel along the existing Guangfu Road. According to the project's traffic - maintaining requirements, the traffic - maintaining road needs to cross this flood - drainage channel. Therefore, three Bailey steel temporary bridges are set up as the traffic - maintaining road. And the Bailey steel temporary bridges are obliquely intersecting with the traffic - maintaining road. The Bailey steel temporary bridges are mainly for social vehicles to pass through and also serve as construction access roads. The designed vehicle speed is 40 km / h, and 20 km / h at intersections and special areas. The standard axle load is set according to a single - axle load of 100 kN for a double - wheel group. The bridge and culvert load grade is extra - heavy according to the urban - A traffic grade. The designed service life is 5 years.

[0094] Finally, it should be noted that the above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. An improved limiting device for Bailey steel bridge installation, characterized in that: Including: Bottom plate (1); Several connecting columns (2), which are respectively connected to the bottom of the bottom plate (1); Transverse limiting device (3), which is connected above the bottom plate (1); Longitudinal limiting device (4), which is connected to one end above the bottom plate (1); Longitudinal constraint device (5), which is arranged above the bottom plate (1) near one end of the longitudinal limiting device (4).

2. The improved limiting device for installing Bailey steel bridge according to claim 1 is characterized in that: It further includes a cushion block (6), and the cushion block (6) is arranged between the longitudinal limiting device (4) and the longitudinal constraint device (5), wherein the cushion block (6) is a rubber pad.

3. The improved limiting device for installing Bailey steel bridge according to claim 1 is characterized in that: It further includes a protective pad (7), and the protective pad (7) is arranged in the limiting groove of the transverse limiting device (3), wherein the protective pad (7) is a lining rubber gasket.

4. The improved limiting device for installing Bailey steel bridge according to claim 1 is characterized in that: The bottom plate (1) is a square plate-like structure, and at least one through hole is formed through the bottom plate (1).

5. The improved limiting device for installing Bailey steel temporary bridge according to claim 1 is characterized in that: The connecting column (2) is a cylindrical structure, and the connecting columns (2) are respectively vertically and fixedly connected to the bottom of the bottom plate (1) at equal or unequal intervals.

6. The improved limiting device for installing Bailey steel temporary bridge according to claim 1 is characterized in that: The transverse limiting device (3) includes: Limiting plates (31), which are connected to each other above the bottom plate (1) in a relative manner; Reinforcing ribs (32), which are connected to the outer sides of the two limiting plates (31) at equal or unequal intervals.

7. The improved limiting device for installing Bailey steel temporary bridge according to claim 1 is characterized in that: The longitudinal limiting device (4) is integrally in a "C" - shaped structure, and the longitudinal limiting device (4) includes: vertical connecting pieces (41), which are symmetrically and vertically connected above the bottom plate (1), and the vertical connecting pieces (41) are respectively located on the outer sides of the corresponding side limiting plates (31); Transverse connecting pieces (42), which are connected between the upper parts of the two vertical connecting pieces (41).

8. The improved limiting device for installing Bailey steel temporary bridge according to claim 7 is characterized in that: Both the vertical connecting piece (41) and the transverse connecting piece (42) are made of channel steel, and the openings of the vertical connecting piece (41) and the transverse connecting piece (42) are on the same side.

9. The improved limiting device for installing Bailey steel temporary bridge according to claim 1 is characterized in that: The longitudinal constraint device (5) includes: Longitudinal constraint backing plate (51), which is made of channel steel; Positioning columns (52), which are symmetrically and vertically connected to the lower end of the longitudinal constraint backing plate (51); Wherein, the opening of the longitudinal constraint backing plate (51) is opposite to the opening of the transverse connecting piece (42).

10. The improved limiting device for installing Bailey steel temporary bridge according to claim 9, characterized in that: The height of the longitudinal constraint device (5) is consistent with the height of the longitudinal limiting device (4), and the positioning column (52) is used to cooperate with the positioning hole provided at one end of the transverse Bailey truss (8) to complete the work.

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