Temporary connecting structure for prefabricated bridge deck slab

Abstract

The utility model discloses a temporary connecting structure for prefabricated bridge deck slabs, which comprises a pull rod and two connecting units, the two connecting units are respectively arranged on two adjacent prefabricated bridge deck slabs, and two ends of the pull rod are respectively connected with the two connecting units. The connecting unit comprises a clamping ring, a clamping plate and a locking piece, the clamping ring is pre-buried in the prefabricated bridge deck, a bayonet is formed in the side, facing the wet joint, of the clamping ring, the end of the pull rod penetrates into the clamping ring through the bayonet, the clamping plate is arranged in the clamping ring and arranged on the pull rod in a sleeving mode, the length of the clamping plate is larger than that of the bayonet, and the locking piece is fixed to the tail end of the pull rod. The locking piece is located on the side, away from the notch, of the clamping plate. According to the temporary connection structure for the prefabricated bridge deck slabs, temporary connection of the two adjacent prefabricated bridge deck slabs is achieved, follow-up construction cannot affect the positions of the prefabricated bridge deck slabs, engineering construction precision is improved, construction quality is guaranteed, the service life of bridge engineering is prolonged, maintenance cost of bridge engineering is reduced, and good economic benefits and social benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a temporary connection structure for prefabricated bridge panels. Background Art

[0002] In recent years, precast concrete bridge decks have been increasingly used in bridge engineering due to their numerous advantages, including rapid construction, high-quality components, and minimal environmental impact. Precast concrete bridge decks can significantly reduce the construction time of bridge superstructures and minimize the impact on the surrounding environment and traffic at the construction site.

[0003] At present, after the prefabricated bridge panels are hoisted into place, the joints are poured again. Since the bridge panels are not connected, it is inevitable that the bridge panels will be offset and misplaced during construction, causing deviations in the position of the bridge panels and affecting the accuracy of the construction project. Utility Model Content

[0004] Based on this, it is necessary to provide a temporary connection structure for prefabricated bridge panels to address the problem that after the prefabricated bridge panels are hoisted into place, the bridge panels are offset and misplaced during construction, causing the position of the bridge panels to deviate.

[0005] A temporary connection structure for a prefabricated bridge deck, comprising: a tie rod and two connection units, wherein the two connection units are respectively installed on two adjacent prefabricated bridge decks, and the two ends of the tie rod are respectively connected to the two connection units;

[0006] The connecting unit includes a clamping ring, a clamping plate and a locking piece. The clamping ring is embedded in the prefabricated bridge deck. A bayonet is provided on the side of the clamping ring facing the wet joint. The end of the pull rod passes through the bayonet into the clamping ring. The clamping plate is arranged in the clamping ring and sleeved on the pull rod. The length of the clamping plate is greater than the length of the bayonet. The locking piece is fixed to the end of the pull rod, and the locking piece is located on the side of the clamping plate away from the notch.

[0007] In one embodiment, the clamping ring includes a base plate and a peripheral wall, the peripheral wall is mounted on the base plate, and the clamping opening is opened on the peripheral wall.

[0008] In one embodiment, the bayonet passes through the upper and lower surfaces of the peripheral wall.

[0009] In one embodiment, embedded anchor rods are provided in the prefabricated bridge deck, and the embedded anchor rods are connected to the clamping rings.

[0010] In one embodiment, the prefabricated bridge deck is provided with a pre-embedded groove, which transversely passes through the prefabricated bridge deck to form a side wall of the wet joint, and the clamping ring is provided in the pre-embedded groove.

[0011] In one embodiment, a rubber block is filled between the clamping plate and the clamping port.

[0012] In one embodiment, the rubber blocks are symmetrically arranged on both sides of the pull rod.

[0013] In one embodiment, a thread is provided at the end of the pull rod, and the locking member is a nut, which is threadedly connected to the pull rod.

[0014] The precast bridge decks are temporarily connected using a retaining ring embedded within the precast bridge deck. After the precast bridge deck is hoisted into place, the retaining plate is inserted into the retaining ring. The tie rod is then passed through the retaining opening and the retaining plate in sequence, and secured with a locking member to prevent the retaining plate from coming loose from the tie rod. Because the retaining plate is longer than the notch, it cannot be pulled out of the retaining ring, thus temporarily connecting two adjacent precast bridge decks. Subsequent construction will not affect the position of the precast bridge decks, improving construction accuracy and ensuring construction quality. This contributes to the lifespan and maintenance costs of the bridge project, resulting in excellent economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0016] Figure 1 A schematic diagram of forming a wet joint in a precast bridge deck according to one embodiment;

[0017] Figure 2 A schematic structural diagram of a temporary connection structure for a prefabricated bridge deck in one embodiment;

[0018] Figure 3 for Figure 2 Schematic diagram of the structure of the connecting unit;

[0019] Figure 4 for Figure 2 A cross-sectional view of a precast bridge deck constructed with temporary connections is shown.

[0020] Reference numerals:

[0021] 1- Precast bridge deck, 2- Wet joint, 10- Temporary connection structure for precast bridge deck, 11- Pull rod, 12- Connecting unit, 121- Clamp, 121a- Bayonet, 121b- Bottom plate, 121c- Peripheral wall, 122- Clamp, 123- Locking piece, 124- Embedded anchor rod, 125- Rubber block. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0025] See also Figure 1 and Figure 2 During the assembly of precast bridge decks 1, wet joints 2 are formed between adjacent precast bridge decks 1. The precast bridge decks 1 are connected by longitudinal wet joints 2 and transverse wet joints 2. Before the wet joints 2 are poured, the precast bridge decks 1 are not connected, which inevitably causes the decks to shift or misalign during construction, resulting in deviations in the positions of the precast bridge decks 1. Therefore, a temporary connection structure 10 for precast bridge decks is provided for temporarily connecting two adjacent precast bridge decks 1.

[0026] Specifically, the temporary connection structure 10 for the prefabricated bridge deck in one embodiment includes a tie rod 11 and two connection units 12. The two connection units 12 are respectively installed on two adjacent prefabricated bridge decks 1. The two ends of the tie rod 11 are respectively connected to the two connection units 12 to achieve temporary connection of the prefabricated bridge deck 1. Subsequent construction will not affect the position of the bridge deck.

[0027] Please also refer to Figure 3 and Figure 4In one embodiment, the connecting unit 12 includes a snap ring 121, a clamping plate 122 and a locking member 123. The snap ring 121 is embedded in the precast bridge deck 1, and a bayonet 121a is provided on the side of the snap ring 121 facing the wet joint 2, so that the pull rod 11 can pass through the bayonet 121a and enter the snap ring 121. In this embodiment, a pre-embedded groove is provided on the precast bridge deck 1, and the snap ring 121 is provided in the pre-embedded groove. The pre-embedded groove passes through the precast bridge deck 1 transversely to form the side wall of the wet joint 2, so that the pull rod 11 can pass through the bayonet 121a and avoid the precast bridge deck 1 blocking the bayonet 121a. The depth of the pre-embedded groove is the same as the thickness of the snap ring 121, so that after the snap ring 121 is provided in the pre-embedded groove, the snap ring 121 is flush with the surface of the precast bridge deck 1.

[0028] Based on the above embodiment, the precast bridge deck 1 is further provided with a pre-buried anchor rod 124, which is connected to the clamping ring 121. The pre-buried anchor rod 124 can increase the stability of the clamping ring 121 and prevent the clamping ring 121 from being pulled out of the precast bridge deck 1 by the tension of the tie rod 11.

[0029] In one embodiment, the retaining ring 121 includes a base plate 121b and a peripheral wall 121c. The peripheral wall 121c is mounted on the base plate 121b. The retaining opening 121a is provided on the peripheral wall 121c, and the embedded anchor rod 124 is connected to the peripheral wall 121c. The retaining opening 121a extends through the upper and lower surfaces of the peripheral wall 121c, and the retaining plate 122 can slide along the base plate 121b, facilitating adjustment of the retaining plate 122.

[0030] The clamping plate 122 is mounted within the retaining ring 121 and is sleeved onto the pull rod 11. Specifically, the clamping plate 122 has a connection hole through which it is sleeved onto the pull rod 11. The length of the clamping plate 122 is greater than the length of the retaining hole 121a, allowing the clamping plate 122 to form a snap connection with the retaining ring 121, preventing the clamping plate 122 from being pulled out of the retaining ring 121 and thus achieving the connection between the pull rod 11 and the retaining ring 121.

[0031] The locking member 123 is fixed to the end of the pull rod 11. The locking member 123 is located on the side of the clamping plate 122 away from the clamping hole 121a. The locking member 123 is used to prevent the clamping plate 122 from loosening from the pull rod 11. In one embodiment, the end of the pull rod 11 is threaded, and the locking member 123 is a nut. The locking member 123 is threadedly connected to the pull rod 11, which can facilitate the installation and removal of the temporary connection structure.

[0032] In one embodiment, rubber blocks 125 are placed between the clamping plate 122 and the clamping opening 121a. These blocks prevent direct, hard contact between the clamping plate 122 and the clamping ring 121, thus preventing damage to the clamping ring 121 or the clamping plate 122. Furthermore, the rubber blocks 125 have a certain degree of deformation, adapting to the vibration of the precast bridge deck 1. Furthermore, the rubber blocks 125 are symmetrically arranged on both sides of the tie rod 11. This symmetrical arrangement of the rubber blocks 125 ensures that the clamping plate 122 is subjected to uniform force, thereby ensuring the life of the clamping plate 122.

[0033] The above-mentioned prefabricated bridge deck uses a temporary connection structure 10, and the clamping ring 121 is pre-buried in the prefabricated bridge deck 1. After the prefabricated bridge deck 1 is hoisted into place, the clamping plate 122 is installed in the clamping ring 121, and then the pull rod 11 is passed through the clamping opening 121a and the clamping plate 122 in sequence, and the rubber block 125 is filled between the clamping plate 122 and the clamping opening 121a. After the position of the clamping plate 122 is determined, it is locked and fixed with a locking member 123 to prevent the clamping plate 122 from loosening from the pull rod 11. Since the length of the clamping plate 122 is greater than the length of the clamping opening 121a, the clamping plate 122 cannot be pulled out of the clamping ring 121, thereby realizing the temporary connection of two adjacent prefabricated bridge decks 1. Subsequent construction will not affect the position of the prefabricated bridge deck 1, thereby improving the construction accuracy, ensuring the construction quality, and benefiting the service life and maintenance cost of the bridge project, with good economic and social benefits.

[0034] 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A temporary connection structure for prefabricated bridge deck, characterized in that: include: A tie rod and two connecting units, wherein the two connecting units are respectively installed on two adjacent prefabricated bridge panels, and the two ends of the tie rod are respectively connected to the two connecting units; The connecting unit includes a clamping ring, a clamping plate and a locking piece. The clamping ring is embedded in the prefabricated bridge deck. A bayonet is provided on the side of the clamping ring facing the wet joint. The end of the pull rod passes through the bayonet into the clamping ring. The clamping plate is arranged in the clamping ring and sleeved on the pull rod. The length of the clamping plate is greater than the length of the bayonet. The locking piece is fixed to the end of the pull rod, and the locking piece is located on the side of the clamping plate away from the bayonet.

2. The temporary connection structure for prefabricated bridge deck according to claim 1, characterized in that: The clamping ring includes a base plate and a peripheral wall, the peripheral wall is mounted on the base plate, and the clamping opening is opened on the peripheral wall.

3. The temporary connection structure for prefabricated bridge deck according to claim 2, characterized in that: The bayonet passes through the upper and lower surfaces of the peripheral wall.

4. The temporary connection structure for prefabricated bridge deck according to claim 1, characterized in that: An embedded anchor rod is provided in the prefabricated bridge deck, and the embedded anchor rod is connected to the clamping ring.

5. The temporary connection structure for prefabricated bridge deck according to claim 1, characterized in that: The prefabricated bridge deck is provided with a pre-embedded groove, which passes through the prefabricated bridge deck transversely to form the side wall of the wet joint, and the clamping ring is arranged in the pre-embedded groove.

6. The temporary connection structure for prefabricated bridge deck according to claim 1, characterized in that: A rubber block is filled between the clamping plate and the clamping port.

7. The temporary connection structure for prefabricated bridge deck according to claim 6, characterized in that: The rubber blocks are symmetrically arranged on both sides of the pull rod.

8. The temporary connection structure for prefabricated bridge deck according to claim 1, characterized in that: The end of the pull rod is provided with a thread, and the locking piece is a nut, which is threadedly connected to the pull rod.

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