Prefabricated bridge deck shear groove assembly

Abstract

The utility model aims to provide the shear groove assembly of the prefabricated bridge deck slab, and the shear groove assembly of the structure can improve the accuracy of the prefabricated position of the shear groove. Comprising a prefabricated top plate and further comprises a positioning box and a shear groove mold, the positioning box is rectangular, the inner wall of the shear groove mold is connected to the outer wall of the positioning box in a clamped mode, and the positioning box is arranged on the prefabricated top plate. By means of the assembly of the structure, the accuracy of the position of the shearing force groove can be improved, a large number of manpower resources can be saved, and meanwhile the time needed in the construction process is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to a prefabricated shear groove component. Background Art

[0002] With the popularity of steel plate girder bridges, precast concrete bridge decks are also increasingly widely used. Precast concrete bridge decks have the advantages of high strength and high rigidity. Usually, shear grooves are reserved on the precast bridge decks, which are connected to the shear nails set on the steel plate girder through the shear grooves, so that the bridge deck can be spliced ​​and installed later by pouring concrete at the connection between the shear grooves and the shear nails.

[0003] In the traditional method, during the process of making the shear trough, the operator places the shear trough mold on the prefabricated bridge deck. After placement, cement is poured around the shear trough mold. After the cement is formed, the shear trough mold is removed to complete the shear trough production.

[0004] In actual application, after placing the shear trough mold, the operator pours cement around the shear trough mold. During the contact between the cement and the shear trough mold, the pushing of the cement on the shear trough mold may cause the shear trough mold to be displaced, thereby making the final shear trough unusable. Utility Model Content

[0005] The utility model aims to provide a prefabricated bridge deck shear groove component, which can improve the accuracy of the shear groove prefabrication position.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A prefabricated bridge deck shear groove assembly includes a prefabricated top plate, a positioning box and a shear groove mold. The positioning box is rectangular, the inner wall of the shear groove mold is clamped on the outer wall of the positioning box, and the positioning box is arranged on the prefabricated top plate.

[0008] By setting the positioning box on the prefabricated top plate, the positioning box is rectangular, the inner wall of the shear groove mold is clamped on the outer wall of the positioning box, and the shape of the shear groove mold fits the size of the positioning box, so that the shear groove mold can be directly clamped on the positioning box. At this time, the prefabricated top plate is poured with cement, and the shear groove is fixed and formed by the shear groove mold. After the shear groove is formed, the shear groove mold can be directly removed.

[0009] The operator only needs to place the shear groove mold directly on the positioning box as needed, and gently tap the shear groove mold to make the shear groove mold and the positioning box more tightly connected, which can avoid the shear groove mold from being displaced during the contact with cement. Through the components of this structure, the accuracy of the shear groove position can be improved, and a lot of human resources can be saved, while reducing the time required for the construction process.

[0010] As a preferred embodiment of the present invention, the four side panels of the positioning box are all inclined, and the lower bottom surface of the positioning box in the vertical space is wider than the upper bottom surface of the positioning box.

[0011] In actual application, after the shear groove is prefabricated, when the shear groove mold is pulled out from the positioning box, the shear groove mold will shake during this process, which may easily cause the corners of the shear groove mold to hit the positioning box, causing the corners of the positioning box to be damaged. By setting the four side panels of the positioning box to have an inclined angle, so that the shear groove mold connected to the positioning box and the corners of the positioning box are at a certain distance, collisions can be avoided during demolding. Improve the yield rate of the shear groove after molding.

[0012] As a preferred embodiment of the present invention, a surface of the positioning box is provided with a positioning groove which is engaged with the shear groove mold.

[0013] In order to prevent the shear groove mold from being offset when it is clamped on the positioning box, causing the shear groove mold to tilt, the positioning groove is provided on the positioning box, so that the shear groove mold is clamped in the positioning groove on the positioning box when it is clamped on the positioning box, so as to prevent the shear groove mold from being offset and affecting the final shear groove shape.

[0014] As a preferred embodiment of the present invention, the shear groove mold is hollow.

[0015] By setting the shear groove mold to be hollow, the weight of the shear groove mold can be reduced, which facilitates the movement of the shear groove mold by workers during operation and reduces the production cost of the shear groove mold.

[0016] As a preferred embodiment of the present invention, the shear groove mold is provided with a handrail.

[0017] The handrail is arranged on the shear groove mold. On the one hand, it is convenient for operators to move the shear groove mold during the construction process. On the other hand, it is convenient for a crane to lift the shear groove mold by fixing it through the handrail during the subsequent demoulding process.

[0018] As a preferred embodiment of the present invention, the shear groove mold is provided with an escape opening for the passage of steel bars.

[0019] Since the prefabricated bridge deck contains multiple steel bars, in order to avoid collision between the shear groove mold and the steel bars in the prefabricated bridge deck, an escape opening for the steel bars to pass through is provided on the shear groove mold, so that the shear groove mold can be smoothly clamped on the positioning box.

[0020] As a preferred embodiment of the present invention, the outer surface of the shear trough mold is provided with a geotextile for blocking cement.

[0021] After the shear trough positioning mold is clamped on the positioning box, the operator starts to pour cement into the prefabricated bridge deck. In order to prevent cement from entering the interior of the shear trough mold through the avoidance opening, the geotextile is set on the outer surface of the shear trough mold to block the avoidance opening to prevent cement from seeping in, which increases the workload of the operator.

[0022] As a preferred embodiment of the present invention, an opening is provided at the top of the shear groove mold.

[0023] By setting an opening at the top of the shear trough mold, on the one hand, air can enter the interior of the shear trough mold. When the shear trough mold is removed, it is prevented that the shear trough mold is difficult to be pulled off the positioning groove box under the action of atmospheric pressure, thereby reserving necessary pressure release space for the demolding process. On the other hand, the operator can see the situation inside the shear trough mold through the opening and clean the cement leaking from the shear trough mold in time.

[0024] In summary, the utility model has the following beneficial effects:

[0025] 1. The four side panels of the positioning box are all tilted to avoid collision during demoulding and improve the yield rate of the shear groove after forming.

[0026] 2. The shear groove mold is set to be hollow, which is convenient for workers to move the shear groove mold during operation and reduces the production cost of the shear groove mold.

[0027] 3. A positioning groove is provided on the surface of the positioning box to engage with the shear groove mold, so as to prevent the shear groove mold from being offset when placed on the positioning box, thereby affecting the final shear groove shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of Example 1.

[0029] Figure 2 It is a schematic diagram of the positioning box of Example 1.

[0030] In the figure: 1. Prefabricated top plate, 2. Positioning box, 3. Shear groove mold, 4. Handrail, 5. Avoidance. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0032] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0033] The positioning box 2 is arranged on the prefabricated top plate 1, and the positioning box 2 is rectangular. The inner wall of the shear groove mold 3 is clamped on the outer wall of the positioning box 2. The shape of the shear groove mold 3 fits the size of the positioning box 2, so that the shear groove mold 3 can be directly clamped on the positioning box 2. At this time, the prefabricated top plate 1 is poured with cement, and the shear groove is fixed and formed by the shear groove mold 3. After the shear groove is formed, the shear groove mold can be directly removed.

[0034] The operator only needs to place the shear groove mold 3 directly on the positioning box as needed, and gently tap the shear groove mold 3, so that the shear groove mold 3 and the positioning box 2 are more tightly connected, which can avoid the shear groove mold from being displaced during the contact with cement. Through the components of this structure, the accuracy of the shear groove position can be improved, and a lot of human resources can be saved, while reducing the time required for the construction process.

[0035] In actual application, after the shear groove is prefabricated, when the shear groove mold 3 is pulled out from the positioning box 2, the shear groove mold 3 will shake during this process, which may easily cause the corners of the shear groove mold 3 to hit the positioning box 2, causing the corners of the positioning box 2 to be damaged. By setting the four side panels of the positioning box 2 as panels with an inclined angle, the shear groove mold 3 connected to the positioning box 2 and the corners of the positioning box 2 are kept at a certain distance, thereby avoiding collisions during demolding. Improve the yield rate of the shear groove after molding.

[0036] In order to prevent the shear groove mold 3 from being offset when being clamped on the positioning box 2, causing the shear groove mold 3 to tilt, the positioning groove is provided on the positioning box 2, so that the shear groove mold 3 is clamped in the positioning groove on the positioning box 2 when being clamped on the positioning box 2. This prevents the shear groove mold 3 from being offset and affecting the final shear groove shape.

[0037] By setting the shear groove mold 3 to be hollow, the weight of the shear groove mold 3 can be reduced, which facilitates the movement of the shear groove mold 3 by workers during operation and reduces the production cost of the shear groove mold 3.

[0038] The handrail 4 is arranged on the shear groove mold 3. On the one hand, it is convenient for operators to move the shear groove mold 3 during the construction process. On the other hand, it is convenient for a crane to fix the shear groove mold 3 through the handrail 4 during the subsequent demoulding process.

[0039] Since the prefabricated bridge deck contains multiple steel bars, in order to avoid collision between the shear groove mold 3 and the steel bars in the prefabricated bridge deck, an avoidance opening 5 for the steel bars to pass through is provided on the shear groove mold 3, so that the shear groove mold 3 can be smoothly clamped on the positioning box 2.

[0040] When the shear groove positioning mold 3 is snapped onto the positioning box 2, the operator starts to pour cement into the prefabricated bridge deck. In order to prevent cement from entering the interior of the shear groove mold 3 from the avoidance opening 3, the geotextile is arranged on the outer surface of the shear groove mold 3 to block the avoidance opening to prevent cement from penetrating, thereby increasing the workload of the operator.

[0041] By setting an opening at the top of the shear groove mold 3, on the one hand, air can enter the interior of the shear groove mold 3. When the shear groove mold 3 is removed, it is prevented that the shear groove mold 3 is difficult to be pulled off from the positioning groove box 2 under the action of atmospheric pressure, thereby reserving necessary pressure release space for the demolding process; on the other hand, the operator can see the situation inside the shear groove mold 3 through the opening and clean the cement leaking from the shear groove mold 3 in time.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A prefabricated bridge deck shear channel assembly, comprising a prefabricated top plate (1), characterized in that: It also comprises a positioning box (2) and a shear groove mould (3); the positioning box (2) is rectangular; the inner wall of the shear groove mould (3) is snap-fitted onto the outer wall of the positioning box (2); and the positioning box (2) is arranged on the prefabricated top plate (1).

2. A prefabricated bridge deck shear groove assembly according to claim 1, characterized in that: The four side panels of the positioning box (2) are all arranged at an inclination, and the lower bottom surface of the positioning box (2) in the vertical space is wider than the upper bottom surface of the positioning box (2).

3. The prefabricated bridge deck shear groove assembly according to claim 2, characterized in that: The surface of the positioning box (2) is provided with a positioning groove which is engaged with the shear groove mold (3).

4. The prefabricated bridge deck shear groove assembly according to claim 3, characterized in that: The shear groove mold (3) is hollow inside.

5. The prefabricated bridge deck shear groove assembly according to claim 4, characterized in that: The shear groove mould (3) is provided with a handrail (4).

6. The prefabricated bridge deck shear groove assembly according to claim 4, characterized in that: The shear groove mould (3) is provided with an escape opening (5) for the steel bars to pass through.

7. The prefabricated bridge deck shear groove assembly according to claim 6, characterized in that: The outer surface of the shear trough mould (3) is provided with a geotextile for blocking cement.

8. The prefabricated bridge deck shear groove assembly according to claim 7, characterized in that: The top of the shear groove mould (3) is provided with an opening.

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