Template device for repairing underwater pier and reinforcing structure

Abstract

The utility model relates to the technical field of bridge pier repairing engineering, and provides a formwork device and a reinforcing structure for repairing an underwater bridge pier, the formwork device comprises a bottom plate and a plurality of side plates, the bottom plate comprises a plurality of bottom plate units, and an annular mounting groove is formed in the bottom plate; mounting grooves are formed in the bottom plate, the side plates are arranged in the mounting grooves, the side plates and the bottom plate can define an area used for pouring concrete, longitudinal stiffeners and annular stiffeners are arranged on the inner sides of the side plates, and every two adjacent side plates are connected through a connecting piece. According to the device, large auxiliary measures such as additional arrangement of a steel cofferdam are not needed for reinforcing the underwater pier, the construction period is greatly shortened, the device can be applied to emergency repair and reinforcement of a common pier and has good adaptability, and the formwork device can also serve as a part of a pier repair structure and has the comprehensive advantages of sleeve outer wrapping reinforcement and section increasing reinforcement; and rapid recovery of the piers in various scenes and improvement of the bearing capacity are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge repair engineering technical field, especially a formwork device and reinforcing structure for repairing underwater pier. BACKGROUND

[0002] Bridge is an important part of modern traffic network, and at present a large number of bridges serve under high load for more than 20 years, and diseases occur frequently, and the number of sick bridges and dangerous bridges is more.In recent years, under extreme conditions such as natural disasters and earthquakes, collapses and pier cracking accidents of bridges are common.Pier, as the main load-bearing component of the lower part, its damage is the internal cause of many bridge accidents, especially the damage of underwater pier column is not easy to find and difficult to repair, and timely reinforcement or repair of damaged pier is the prerequisite for guaranteeing the basic working capacity of the bridge.

[0003] At present, the common methods for pier damage reinforcement mainly include concrete section enlargement method, steel sleeve reinforcement method and jacket method, and auxiliary measures such as cofferdam are often needed for underwater pier reinforcement.The construction period of the above methods is generally long, which needs 7 to 15 days, and the construction process is complex, the concrete section enlargement method needs to plant reinforcement, bind reinforcement, erect formwork and pour concrete, the steel sleeve method needs to be processed in the factory according to different pier column diameters and welded on site, and the jacket method uses glass fiber sleeve for reinforcement, which has high requirements for on-site process and precision, high cost and very limited reinforcement effect.In actual pier reinforcement and repair engineering, especially underwater pier reinforcement, the overall efficiency of the existing pier reinforcement method is low, the bridge is in a dangerous state for a long time, and often cannot meet the time limit for the project.In addition, the site conditions of pier repair and reinforcement are poor, large-scale equipment and complex process are difficult to guarantee, and the existing pier reinforcement method has the problems of insufficient environmental applicability, which indirectly prolongs the reinforcement period.Therefore, the above method has certain limitations in the application of pier reinforcement engineering. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems of insufficient environmental applicability, complicated construction steps, low efficiency and long construction period of the device for repairing underwater pier in the prior art, and provides a formwork device and reinforcing structure for repairing underwater pier.

[0005] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0006] Firstly, the utility model provides a formwork device for repairing underwater pier, which comprises:

[0007] The bottom plate comprises a plurality of bottom plate units, and the bottom plate is provided with annular mounting grooves;

[0008] A plurality of side plates are arranged in the mounting groove, and the plurality of side plates can be enclosed with the bottom plate to form an area for pouring concrete, and the inner side of the side plate is provided with a longitudinal stiffener and a ring stiffener, and two adjacent side plates are connected by a connecting piece.

[0009] The shape and size of the mounting groove are determined according to the shape and size of the cross section to be reinforced and formed.

[0010] The side plate can be an integral body or a plurality of segments assembled in the longitudinal direction.

[0011] The bottom plate and the side plate are independently arranged, which is convenient for saving transportation and stacking space.

[0012] The template device for repairing an underwater pier is characterized in that the bottom plate and the side plate are arranged on the periphery of the existing pier, all the side plates are constrained by the mounting groove and the connecting piece, the side plates are quickly positioned and assembled, the cross section area for repairing the underwater pier is quickly enclosed, the bottom plate is assembled by a plurality of bottom plate units, the bottom plate is conveniently installed on the periphery of the existing component, the side plates are connected by the connecting piece to form a side mold, the transportation and installation under the limited condition are also convenient, the large hoisting equipment and the on-site welding are not needed, the efficiency is improved, and the construction period is shortened, the longitudinal and ring stiffeners are integrated on the side plate, the longitudinal and ring stiffeners are equivalent to the longitudinal and hoop reinforcements, the on-site engineering quantity is reduced, the repair efficiency is further improved, the reinforcement of the underwater pier does not need to be additionally provided with a large auxiliary measure such as a steel cofferdam, the construction period is greatly shortened, the template device can also be applied to the repair and reinforcement of the ordinary pier, has good adaptability, the template device can also be used as part of the pier repair structure, has the comprehensive advantages of the sleeve outer wrapping reinforcement and the cross section reinforcement, and is convenient for quickly recovering and improving the bearing capacity of the pier under various scenes.

[0013] Preferably, the connecting piece is arranged at the top of the side plate.

[0014] Further preferably, the connecting piece is a reinforcing steel bar, the inner wall of the side plate is provided with an ear plate, and the ear plate is provided with a connecting hole for hanging the connecting piece.

[0015] The on-site welding is not needed, and the repair speed is accelerated.

[0016] Further preferably, the ear plate is connected to the top end of the longitudinal stiffener.

[0017] Further preferably, the ear plate has at least two.

[0018] Preferably, the longitudinal stiffener is a stiffened plate, the ring stiffener is a reinforcing steel bar, and the ring stiffener is connected to the cantilever end surface of the longitudinal stiffener.

[0019] Preferably, the side plates are steel plates, and a sealing member is arranged between two adjacent side plates.

[0020] Further preferably, two baffle plates are arranged on the bottom plate, and the mounting groove is formed between the two baffle plates, and the bottom plate and the baffle plates are steel members.

[0021] In a second aspect, the utility model provides a reinforcing structure of a pier, which comprises concrete and a formwork device for repairing an underwater pier as described above, the formwork device is arranged on the outside of an existing pier, the bottom plate is connected to the top surface of an existing pile cap, and the concrete is located between the existing pier and the side plate.

[0022] The reinforcing structure of the pier has the advantages that the formwork with longitudinal reinforcement and stirrups cooperates with the concrete poured therein to form a reinforcing structure with sleeve wrapping and increased cross section, which can shorten the construction period and ensure the reinforcing quality and effect, and effectively and quickly restores and improves the bearing capacity of the pier column.

[0023] Preferably, the concrete is early strength concrete.

[0024] In summary, due to the adoption of the above technical solutions, the utility model has the advantages that:

[0025] 1. The formwork device for repairing an underwater pier has the advantages that it does not depend on large hoisting equipment and on-site welding, which is beneficial to improving the efficiency and shortening the construction period, the side plate is integrated with longitudinal and circumferential stiffeners, which is equivalent to having longitudinal reinforcement and stirrups, which is beneficial to reducing the on-site engineering quantity and further improving the repair efficiency, for the reinforcement of an underwater pier, no large auxiliary measures such as a steel cofferdam need to be additionally arranged, which is beneficial to greatly shortening the construction period, and the formwork device can also be applied to the repair and reinforcement of ordinary piers, has good adaptability, can be used as part of the pier repair structure, has the comprehensive advantages of sleeve wrapping reinforcement and increased cross section reinforcement, and is beneficial to the quick recovery and improvement of the bearing capacity of the pier in various scenes.

[0026] 2. The reinforcing structure of the pier has the advantages that the formwork with longitudinal reinforcement and stirrups cooperates with the concrete poured therein to form a reinforcing structure with sleeve wrapping and increased cross section, which can shorten the construction period and ensure the reinforcing quality and effect, and effectively and quickly restores and improves the bearing capacity of the pier column. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a perspective structural schematic view of the formwork device for repairing an underwater pier of embodiment 1;

[0028] Figure 2 is a top view schematic view of the formwork device for repairing an underwater pier of embodiment 1;

[0029] Figure 3 is a structural schematic view of the side plate of Example 1;

[0030] Figure 4 is a structural schematic view of the side plate of Example 1; Figure 3 is a sectional view of A-A in Figure 1;

[0031] Figure 5 is a sectional view of B-B in Figure 1; Figure 3

[0032] Figure 6 is a sectional view of C-C in Figure 1; Figure 3

[0033] Figure 7 is a structural schematic view of the connecting piece;

[0034] Figure 8 is a structural schematic view of the bottom plate;

[0035] Figure 9 is a sectional schematic view of the bottom plate;

[0036] Figure 10 is a schematic view of the connection between the side plate and the connecting piece in Example 2 (the ring stiffener is not shown);

[0037] Figure 11 is a structural schematic view of the reinforcing structure of a pier of Example 3;

[0038] Figure 12 is a top view schematic view of the reinforcing structure of a pier of Example 3.

[0039] Reference signs: 00 - existing pier; 01 - concrete; 02 - existing pile cap; 11 - installation groove; 111 - baffle; 2 - side plate; 21 - longitudinal stiffener; 22 - ring stiffener; 3 - connecting piece; 4 - ear plate; 41 - connecting hole; 5 - sealing piece. DETAILED DESCRIPTION

[0040] The present application will be described in detail below with reference to the drawings.

[0041] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be described in further detail below with reference to the test examples and specific embodiments. However, this should not be understood as limiting the scope of the above-mentioned subject matter of the present application to the following examples, and any technology realized based on the content of the present application falls within the scope of the present application.

[0042] ​​In the description of the embodiments of the present application, the terms of orientation or position relationship such as "upper", "lower", "left", "right", "center", "inner", "outer" and the like are expressed based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / device / apparatus of the present application is usually used. These terms of orientation or position relationship are only for the convenience of describing the present application or simplifying the description of the embodiments, and for the convenience of the technicians to quickly understand the scheme, and do not indicate or imply 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 application.

[0043] In addition, the terms "horizontal", "vertical", "overhanging", "parallel" and the like do not mean that the corresponding device / component / element must be absolutely horizontal or vertical or overhanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Alternatively, it can be simplified to understand that the corresponding device / component / element is arranged in the direction of "horizontal", "vertical", "overhanging", "parallel" and the like, and can have an error / deviation of ±10% relative to the corresponding direction, more preferably an error / deviation of ±8% or less, more preferably an error / deviation of ±6% or less, more preferably an error / deviation of ±5% or less, and more preferably an error / deviation of ±4% or less. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present application.

[0044] In addition, the terms "first", "second", "third" and the like in the description of the present application are only used to distinguish the same or similar components, and should not be understood as emphasizing or implying the relative importance of the specific components.

[0045] In addition, in the description of the embodiments of the present application, "several", "a plurality of", "several" represent at least 2. It can be 2, 3, 4, 5, 6, 7, 8, 9, etc. in any case, or even more than 9.

[0046] In addition, in the description of the technical scheme of the present application, unless otherwise specified / limited / limited, the terms "set", "install", "connect", "connect", "set", "lay", "arrange" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, which can be welding, riveting, bolting, screwing and other commonly used connection means in the art. The connection can be mechanical connection, electrical connection or communication connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements.

[0047] Embodiment 1

[0048] As shown in the drawings, a formwork device for repairing underwater pier in the embodiment comprises: Figures 1-6 A bottom plate 1 comprising a plurality of bottom plate units, the bottom plate 1 being provided with a ring-shaped mounting groove 11;

[0049] A plurality of side plates 2 provided in the mounting groove 11, the plurality of side plates 2 being capable of being enclosed with the bottom plate 1 to form an area for pouring concrete 01, the inner side of the side plate 2 being provided with a longitudinal stiffener 21 and a ring-shaped stiffener 22, and the adjacent two side plates 2 being connected through a connecting piece 3,

[0050] The longitudinal stiffener 21, the ring-shaped stiffener 22 and the connecting piece 3 are not shown in the drawings. Figure 1 As shown in the drawings, the bottom plate 1 can be formed into a ring-shaped structure by splicing two bottom plate units, the bottom plate 1 being provided with two baffle plates 111, the mounting groove 11 being formed between the two baffle plates 111, and the bottom plate 1 and the baffle plate 111 both being steel members. It can be that the baffle plate 111 located at the inner side is provided on the inner side surface of the bottom plate 1 for abutting against the existing pier 00, and the baffle plate 111 located at the outer side is provided on the top surface of the bottom plate 1 for abutting against the side plate 2, or both the baffle plates 111 are provided on the top surface of the bottom plate 1, and the inner side surface of the bottom plate 1 is used for abutting against the existing pier 00. The height of the baffle plate 111 is set according to actual needs.

[0051] Figures 8-9 As shown in the drawings, the thickness, material and other parameters of the side plate 2 are set according to actual needs. For example, the side plate 2 is a steel plate, the longitudinal stiffener 21 can be a stiffened plate welded to the side plate 2, the specific number, spacing and size are set according to actual needs, the ring-shaped stiffener 22 can be a steel bar, and the ring-shaped stiffener 22 can be welded to the cantilever end surface of the longitudinal stiffener 21 or can be provided in the stiffened plate. In the embodiment, steel ear plates 4 are provided on the top surfaces of the two stiffened plates in the middle, the ear plates 4 are welded to the side plate 2 and the stiffened plate respectively, two connecting holes 41 are provided on the ear plate 4, and the connecting piece 3 can be a steel bar with a bent portion or a hook at both ends, as shown in the drawings, or a profile steel can be used for connection through a pin.

[0052] As shown in the drawings, the thickness, material and other parameters of the side plate 2 are set according to actual needs. For example, the side plate 2 is a steel plate, the longitudinal stiffener 21 can be a stiffened plate welded to the side plate 2, the specific number, spacing and size are set according to actual needs, the ring-shaped stiffener 22 can be a steel bar, and the ring-shaped stiffener 22 can be welded to the cantilever end surface of the longitudinal stiffener 21 or can be provided in the stiffened plate. In the embodiment, steel ear plates 4 are provided on the top surfaces of the two stiffened plates in the middle, the ear plates 4 are welded to the side plate 2 and the stiffened plate respectively, two connecting holes 41 are provided on the ear plate 4, and the connecting piece 3 can be a steel bar with a bent portion or a hook at both ends, as shown in the drawings, or a profile steel can be used for connection through a pin. Figures 3-6 Figure 7 As shown in the drawings, the thickness, material and other parameters of the side plate 2 are set according to actual needs. For example, the side plate 2 is a steel plate, the longitudinal stiffener 21 can be a stiffened plate welded to the side plate 2, the specific number, spacing and size are set according to actual needs, the ring-shaped stiffener 22 can be a steel bar, and the ring-shaped stiffener 22 can be welded to the cantilever end surface of the longitudinal stiffener 21 or can be provided in the stiffened plate. In the embodiment, steel ear plates 4 are provided on the top surfaces of the two stiffened plates in the middle, the ear plates 4 are welded to the side plate 2 and the stiffened plate respectively, two connecting holes 41 are provided on the ear plate 4, and the connecting piece 3 can be a steel bar with a bent portion or a hook at both ends, as shown in the drawings, or a profile steel can be used for connection through a pin.

[0053] The adjacent two side plates 2 are also provided with a sealing piece 5, such as a sealing rubber strip.

[0054] In some embodiments, a plurality of ear plates 4 can be provided longitudinally along the side plate 2.

[0055] In some embodiments, the side plate 2 can also be a steel lining plate or other composite material plate. ​​

[0056] In some embodiments, the ring stiffener 22 can also be in the form of a stiffened plate.

[0057] In some embodiments, the sealing member 5 can be directly prefabricated in the side plate 2.

[0058] In some embodiments, the shape and size of the mounting groove 11 and the shape and size enclosed by the side plate 2 are set according to actual needs, and can also be used for repairing square columns, round end type columns, etc.

[0059] The formwork device for repairing an underwater pier has the advantages that transportation and installation under limited conditions are facilitated, dependence on large transport vehicles and installation equipment is reduced, the side plate 2 is provided with longitudinal reinforcement and stirrups, which is beneficial to reducing the amount of on-site engineering, the formwork device can be applied to the repair and reinforcement of ordinary piers, and for the reinforcement of underwater piers, large auxiliary measures such as a steel cofferdam do not need to be additionally arranged, the formwork device has excellent adaptability, the formwork device can also be used as part of a pier repair structure, has the comprehensive advantages of sleeve wrapping reinforcement and section enlargement reinforcement, and is beneficial to the rapid recovery and improvement of the bearing capacity of the pier in various scenes.

[0060] Embodiment 2

[0061] A formwork device for repairing an underwater pier has the same structure as that of Embodiment 1, and differs from Embodiment 1 in that the connecting member 3 connects two adjacent side plates 2 at different positions, as shown in FIG. 2 (the ring stiffener 22 is not shown), and the connecting position of the connecting member 3 can be selected according to actual needs. Figure 10

[0062] Embodiment 3

[0063] A reinforcement structure of a pier comprises concrete 01 and a formwork device for repairing an underwater pier as described in Embodiment 1 or 2, the formwork device is arranged on the outer side of an existing pier 00, the bottom plate 1 is connected to the top surface of an existing bearing platform 02, and the concrete 01 is located between the existing pier 00 and the side plate 2, as shown in FIG. 3. Figures 11-12 The concrete 01 can be self-compacting concrete or early strength concrete.

[0064] The reinforcement structure of the pier has the advantages that the formwork device provided with longitudinal reinforcement and stirrups cooperates with the concrete poured therein to form a reinforcement structure having the advantages of sleeve wrapping and section enlargement, the construction period can be shortened, the reinforcement quality and effect can be ensured, and the pier bearing capacity can be effectively and rapidly recovered and improved.

[0065] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.​

Claims

1. A formwork apparatus for repairing an underwater pier, characterized by, The utility model relates to a formwork device for repairing underwater bridge pier, comprising: a bottom plate (1) comprising a plurality of bottom plate units, wherein a ring-shaped mounting groove (11) is arranged on the bottom plate (1); a plurality of side plates (2) arranged in the mounting groove (11), wherein the plurality of side plates (2) can be enclosed with the bottom plate (1) to form an area for pouring concrete (01), and longitudinal stiffeners (21) and ring-shaped stiffeners (22) are arranged on the inner side of the side plates (2), and two adjacent side plates (2) are connected by a connecting piece (3).

2. The formwork apparatus for repairing an underwater pier according to claim 1, wherein, The connecting piece (3) is arranged on the top of the side plate (2).

3. The formwork apparatus for repairing an underwater pier according to claim 2, wherein, The connecting piece (3) is a reinforcing steel bar, and an ear plate (4) is arranged on the inner wall of the side plate (2), wherein a connecting hole (41) for hanging the connecting piece (3) is arranged on the ear plate (4).

4. The formwork apparatus for repairing an underwater pier according to claim 3, wherein, The ear plate (4) is connected to the top end of the longitudinal stiffener (21).

5. The formwork apparatus for repairing an underwater pier according to claim 3, wherein, The ear plate (4) has at least two.

6. The formwork apparatus for repairing an underwater pier according to claim 1, wherein, The longitudinal stiffener (21) is a stiffened plate, and the ring-shaped stiffener (22) is a reinforcing steel bar, and the ring-shaped stiffener (22) is connected to the cantilever end surface of the longitudinal stiffener (21).

7. A formwork apparatus for repairing an underwater pier according to any one of claims 1-6, wherein, The side plate (2) is a steel plate, and a sealing piece (5) is arranged between two adjacent side plates (2).

8. The formwork apparatus for repairing an underwater pier according to claim 7, wherein, Two baffle plates (111) are arranged on the bottom plate (1), and the mounting groove (11) is formed between the two baffle plates (111), and the bottom plate (1) and the baffle plate (111) are both steel members.

9. A reinforcing structure of a bridge pier, comprising concrete (01) and a formwork device for repairing underwater bridge pier according to any one of claims 1-8, wherein the formwork device is arranged outside the existing bridge pier (00), the bottom plate (1) is connected to the top surface of the existing pile cap (02), and the concrete (01) is located between the existing bridge pier (00) and the side plate (2).

10. A reinforcement structure for a pier according to claim 9, wherein The concrete (01) is early strength concrete.

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