Rapid construction device for transverse contraction joint of concrete pavement

Abstract

The utility model discloses a concrete pavement transverse contraction joint fast construction device which comprises a support, two filling joint templates and a plurality of positioning assemblies, the two filling joint templates and the positioning assemblies are arranged on the support, the filling joint templates are arranged on the top of the support, a filling groove is formed between the two filling joint templates, and scales are arranged on the outer surfaces of the filling joint templates; and the positioning assembly is connected to the support in a sliding mode and used for positioning the dowel bar. According to the device, the construction process can be effectively simplified, a cutting machine does not need to cut joints after a concrete pavement is poured, the construction efficiency is improved, the mounting precision of the dowel bar can be effectively improved, and therefore the force transmission effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transverse contraction joint construction of concrete pavement, in particular to a quick construction device for transverse contraction joint of concrete pavement. Background Art

[0002] like Figure 1-3 As shown in the figure, the contraction joint of concrete pavement refers to the transverse joint that does not penetrate the pavement slab in order to ensure that the cement concrete pavement slab will not produce irregular cracks due to shrinkage during the hardening process and when the temperature drops. The joint is constructed by the compression method before the initial setting of the concrete, but most of the time, the contraction joint is cut by a sawing machine. There are two types of joints: false joint type and false joint plus dowel rod type. The three contraction joints of the extra-heavy and heavy traffic highways, toll plazas, adjacent expansion joints or the free end of the pavement should adopt the false joint plus dowel rod type, that is, when constructing the transverse contraction joint 2, a dowel rod 6 is set in the center. The dowel rod 6 consists of a sliding end 61 and a fixed end 62 to prevent the concrete pavement 1 from being subjected to large local forces, causing uneven settlement of the concrete pavement 1.

[0003] However, there are still some shortcomings in the existing construction operation. The traditional construction process usually uses a cutting machine to cut the contraction joint 2 after the concrete pavement 1 is poured, and finally fills the joint with filler. The contraction joint cutting 2 is more troublesome, and when the dowel rod is installed, there are problems such as large errors in adjacent spacing and failure to ensure the horizontality of the dowel rod, resulting in poor force transmission effect.

[0004] CN 102677569 A discloses a positioning bracket for a dowel rod of a concrete pavement joint. A plurality of bracket legs with bayonet holes are arranged on the main positioning rod to clamp the dowel rod. The upper transverse section of the fixing rod of the positioning bracket is pressed down and rotated, and the upper transverse section is separated from the hook head of the fixing hook under the action of a reset spring, and is rotated to a direction perpendicular to the main positioning rod and then slowly released, and at the same time, the lower transverse section of the fixing rod is also separated from the reinforcement of the dowel rod.

[0005] However, when removing the bracket, it is necessary to go up to the concrete pavement and press down the upper transverse sections one by one to separate the lower transverse section of the fixing rod from the force transmission rod reinforcement, which is inconvenient to operate, and after the concrete solidifies, the shrinkage joint also needs to be cut.

[0006] Therefore, there is a need for a quick construction device that can be widely used in road transverse shrinkage joint construction operations. Utility Model Content

[0007] In view of the above problems, the utility model provides a quick construction device for transverse shrinkage joints of concrete pavement, which can realize the precise positioning of force transmission rods and form shrinkage joint filling grooves in one go when pouring the pavement, without the need for subsequent re-grooving, thereby significantly improving the construction efficiency of transverse shrinkage joints of concrete pavement.

[0008] Specifically, the utility model provides a device for quickly constructing transverse shrinkage joints of a concrete pavement, comprising:

[0009] Bracket;

[0010] Two filling seam templates are arranged on the top of the bracket, a filling groove is formed between the two filling seam templates, and the outer surface of the filling seam template is provided with scales;

[0011] A plurality of positioning components are slidably connected to the bracket and are used for positioning the force transmission rod.

[0012] Furthermore, the positioning component comprises:

[0013] A positioning seat is slidably connected to the bracket and is provided with a fixing member for fixing the position of the positioning seat;

[0014] A positioning plate is arranged at the bottom of the positioning seat and is provided with a positioning hole matched with the force transmission rod. The positioning plate is used to position the force transmission rod.

[0015] Furthermore, the bracket is provided with a slide rail, and the positioning seat is slidably connected to the slide rail.

[0016] Furthermore, the positioning plate is in a "ㄇ" shape.

[0017] Furthermore, the bracket is in an "I" shape.

[0018] Working principle:

[0019] Before pouring concrete, the bracket 3 is placed on the bottom surface, and then the number of positioning components 5 is determined according to the number of dowel rods 6 to be placed, and the positioning components 5 are moved to the corresponding positions, and then the positioning seat 51 is fixed with a fixing member to ensure that its position will not be offset when pouring concrete. The dowel rod 6 is inserted into the positioning hole of the positioning plate 52, and the pouring can be carried out after the dowel rod 6 is installed. During pouring, the filling joint template on the top separates the concrete to form a filling joint, and then the shrinkage joint material can be filled in the filling joint.

[0020] The filling groove 31 is engraved with scales to form a scale. The positioning components 5 can slide freely on the bracket 3. The scale is used to determine the spacing between the positioning components 5, and then the spacing between the force transmission rods 6. The positioning components 5 ensure that the force transmission rods remain horizontal.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] (1) The quick construction device provided by the utility model can effectively simplify the construction process, eliminating the need to cut the concrete pavement with a cutting machine, thereby improving the construction efficiency.

[0023] (2) The positioning assembly is movable and detachable, so that the position of the positioning seat and the number of force transmission rods can be accurately adjusted, thereby ensuring the force transmission effect of the force transmission rods and improving the construction quality.

[0024] (3) The device does not need to be taken out, and the concrete pavement can be poured continuously, which can improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the transverse contraction joint of the pavement;

[0026] Figure 2 It is a cross-sectional schematic diagram of the transverse shrinkage joint of the pavement;

[0027] Figure 3 is a schematic diagram of the dowel rod;

[0028] Figure 4 This is a schematic diagram of the structure of the quick construction device for transverse shrinkage joints of a concrete pavement in Example 1;

[0029] Figure 5 It is a side view of the quick construction device for transverse shrinkage joints of concrete pavement in Example 1;

[0030] Figure 6 This is a usage status diagram of the quick construction device for transverse shrinkage joints of concrete pavement in Example 1.

[0031] Reference numerals:

[0032] 1-concrete pavement; 2-transverse shrinkage joint; 3-bracket; 31-slide rail; 4-filling joint template; 41-filling slot; 5-positioning assembly; 51-positioning seat; 52-positioning plate; 53-fixing bolt; 6-force transmission rod; 61-sliding end; 62-fixed end. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0034] Example 1

[0035] like Figure 4-6As shown, this embodiment provides a quick construction device for transverse shrinkage joints of concrete pavement, including: a bracket 3 and two filling joint templates 4 arranged on the bracket 3 and a plurality of positioning components 5, wherein the bracket 3 is welded twice by steel plates, and its two ends are "I"-shaped supports, and the lower part can be appropriately extended to increase the stability of the bracket 3. The filling joint templates 4 are welded to the top two sides of the bracket 3 along the transverse direction of the road surface, and the filling joint templates 4 are made of corrosion-resistant materials with high hardness, high rigidity and good toughness. It should be noted that after the concrete pavement is poured, the device is not taken out, but directly poured into the pavement to form a filling groove 41 together, and the filling groove 41 can be directly filled with the shrinkage joint filling material. The shrinkage joint filling material can be filled in the early stage, thereby reducing the process of grooving and refilling after the road surface hardens, thereby shortening the construction period.

[0036] Specifically, the positioning assembly 4 includes: a positioning seat 41 and a positioning plate 42. The positioning seat 41 is in a "ㄇ" shape, one end of which is hung on the transverse slide rail 31 on the side of the bracket 3 and is fastened by a fixing member (fixing bolt 53). The positioning plate 52 is located at the bottom of the end of the positioning seat 41 away from the slide rail 31, and is in a "ㄇ" shape as a whole. Two horizontal coaxial positioning holes are provided on it for installing the force transmission rod 6. The two positioning holes are used to achieve the axial level of the force transmission rod 6 to ensure its force transmission effect.

[0037] The outer surface of the filling seam template near the side of the slide rail 31 is provided with a scale for marking the distance between two adjacent positioning plates 52 , so as to accurately determine the installation position of the force transmission rod 6 , which can effectively improve the installation accuracy of the force transmission rod 6 .

[0038] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A quick construction device for transverse shrinkage joints of concrete pavement, characterized in that: include: Bracket (3); Two filling seam templates (4) are arranged on the top of the bracket (3), a filling groove (41) is formed between the two filling seam templates (4), and the outer surface of the filling seam template (4) is provided with scales; A plurality of positioning components (5) are slidably connected to the bracket (3) and are used to position the force transmission rod (6).

2. The quick construction device for transverse shrinkage joints of concrete pavement according to claim 1, characterized in that: The positioning component (5) comprises: A positioning seat (51) is slidably connected to the bracket (3) and is provided with a fixing member for fixing the position of the positioning seat (51); A positioning plate (52) is arranged at the bottom of the positioning seat (51) and is provided with a positioning hole matched with the force transmission rod (6). The positioning plate (52) is used to position the force transmission rod (6).

3. The quick construction device for transverse shrinkage joints of concrete pavement according to claim 2, characterized in that: The bracket (3) is provided with a slide rail (31), and the positioning seat (51) is slidably connected to the slide rail (31).

4. The quick construction device for transverse shrinkage joints of concrete pavement according to claim 2, characterized in that: The positioning plate (52) is in a "ㄇ" shape.

5. The quick construction device for transverse shrinkage joints of concrete pavement according to claim 1, characterized in that: The support (3) is in an "I" shape.

Images