Novel finished metal weighbridge expansion joint structure
By adopting the fixed connection between steel plates and steel plates and the "S"-shaped distribution in the floor expansion joints, combined with the design of the steel bar head, the problem of difficult to tightly anchor concrete and steel bars in the existing technology is solved, and a closer combination of concrete and expansion joints is achieved, which improves the durability and service life of the floor.
Patent Information
- Application Number
- CN202421899432.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-07
AI Technical Summary
The steel bars in the existing floor expansion joints are difficult to anchor closely with concrete, resulting in the concrete being separated from the steel bars after shrinking with time and temperature changes, making it impossible to effectively protect the floor.
The new finished metal floor scale expansion joint structure is adopted, through the fixed connection between steel plate one and steel plate two and the "S"-shaped distribution, combined with the design of the steel bar head, the grip and bonding force between concrete and steel bars is enhanced, and welding points are added to facilitate welding stability.
A closer bonding and bonding between concrete and expansion joint is achieved, avoiding the disengagement problem caused by concrete shrinkage, and improving the stability of the device by increasing welding points.
Smart Images
Figure CN222862785U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cement pouring, in particular to a novel finished metal weighbridge expansion joint structure. Background Art
[0002] The expansion joint of the scale is set to adapt to the uneven settlement of the foundation and the shrinkage of concrete. It can effectively reduce the irregular cracking caused by stress accumulation and improve the durability and service life of the floor. The skipping method is mostly used for cement pouring. The skipping method makes full use of the principle of "resistance and release" of the concrete when the performance is not stable and the internal stress is easily released before it is completely solidified during the period of 5 to 10 days. It divides the foundation of the building or the large-area concrete plane structure into several areas, and constructs according to the principle of "block planning, block construction, layered pouring, and overall forming". Its mode is the same as that of checkers, that is, pouring one section at a time. The interval between two adjacent sections is not less than 7 days to avoid the drastic temperature difference and drying effect of the initial part of the concrete construction, so that there is no need to leave a post-casting belt.
[0003] At present, floor expansion joints are mainly in the form of traditional reserved steel bars. The steel bars supporting the angle steels cannot be well anchored to the concrete. As time goes by and the temperature changes, the concrete will gradually shrink and slowly separate from the angle steel, thus failing to provide protection. Therefore, we propose a new finished metal floor expansion joint structure. Summary of the invention
[0004] The purpose of the utility model is to provide a new finished metal floor scale expansion joint structure to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides a new type of finished metal floor scale expansion joint structure, including steel plate one, wherein steel plate one is fixedly connected to steel plate two, steel plate one and steel plate two are arranged alternately, and steel plate one and steel plate two are distributed in an "S" shape in the horizontal and vertical directions. Steel bar heads are fixedly connected to the side of steel plate two, and the steel bar heads on adjacent steel plates two extend in opposite directions. Welding points are provided on the upper surfaces of the steel bar heads, and four steel bar heads are spaced between the welding points.
[0006] As a further improvement of the technical solution, the length of steel plate 1 is 100 mm, the width is 4 mm, and the height is 40 mm; the length of steel plate 2 is 200 mm, the width is 4 mm, and the height is 40 mm.
[0007] As a further improvement of the technical solution, the length of the steel bar head is 200 mm, and the length of the welding point from the steel bar head away from the end point of the second steel plate is 30 mm.
[0008] As a further improvement of the technical solution, the steel bar head is located 10 mm below the two side surfaces of the steel plate.
[0009] As a further improvement of the technical solution, a plurality of elliptical protrusions are fixedly connected to the surface of the steel bar head, and the elliptical protrusions are evenly distributed.
[0010] As a further improvement of the technical solution, the steel plate one and the steel plate two are crossed in a "cross" shape in the horizontal direction and the vertical direction, dividing the plane into four areas.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] This new finished metal floor scale expansion joint structure is fixedly connected by steel plate one and steel plate two and is distributed in an "S" shape, which can allow the concrete to fully fill the entire space. The steel bar heads on both sides of the steel plate can not only enhance the grip and adhesion between the concrete and the steel bars, ensuring a tighter tie and bonding between the expansion joint and the newly poured concrete, but also increase the welding points, making it easier to weld and stabilize the entire device. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model 1;
[0014] Figure 2 It is a schematic diagram of a single structure of the utility model 1;
[0015] Figure 3 It is a schematic diagram of the vertical overall structure of the utility model 1;
[0016] Figure 4 It is a schematic diagram of the pouring sequence structure of the utility model 1.
[0017] The meaning of each number in the figure is:
[0018] 1. Steel plate 1; 2. Steel plate 2; 3. Steel bar head; 31. Welding point; 32. Oval protrusion. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] The expansion joint of the scale floor is set to adapt to the uneven settlement of the foundation and the shrinkage of concrete. It can effectively reduce the irregular cracking caused by stress accumulation and improve the durability and service life of the floor. The skipping bin method is mostly used for cement pouring. The skipping bin method makes full use of the "resistance and release" property principle of concrete that the internal stress is easily released before the performance is stable and completely solidified during the period of 5 to 10 days. It divides the foundation of the building or a large area of concrete plane structure into several areas, and constructs according to the principle of "block planning, block construction, layered pouring, and overall forming". Its mode is the same as that of Chinese checkers, that is, pouring one section at a time. The interval between two adjacent sections is not less than 7 days to avoid the drastic temperature difference and drying effect in the initial stage of concrete construction, so that there is no need to leave a post-pouring strip. Please refer to Figure 1-Figure 4 As shown, the utility model provides a novel finished metal floor scale expansion joint structure, including a steel plate 1, which is fixedly connected to a steel plate 2, and the steel plate 1 and the steel plate 2 are arranged alternately. The steel plate 1 and the steel plate 2 are distributed in an "S" shape in the horizontal direction and the vertical direction. A steel bar head 3 is fixedly connected to the side of the steel plate 2, and the steel bar heads 3 on adjacent steel plates 2 extend in opposite directions. The upper surface of the steel bar head 3 is provided with welding points 31, and four steel bar heads 3 are spaced between the welding points 31.
[0021] The improvement of the utility model is:
[0022] Since the current floor expansion joints are mainly in the form of traditional reserved steel bars, the steel bars supporting the angle steels cannot be well anchored to the concrete. As time goes by and the temperature changes, the concrete will gradually shrink and slowly separate from the steel bar head 3, thus failing to provide protection. Therefore, through the fixed connection between steel plate 1 and steel plate 2, and the "S" shape distribution, the concrete can fully fill the entire space. The steel bar head 3 on the side of steel plate 2 can not only enhance the grip and adhesion between the concrete and the steel bar head 3, ensuring a tighter tie and combination between the expansion joint and the newly poured concrete, avoiding the separation from the steel bar head 3 due to concrete shrinkage, thus failing to provide protection, but also increases the welding point 31, so that the entire device can be welded and stabilized more conveniently.
[0023] Taking into account that the expansion joint cannot exceed 10mm, the length of steel plate 1 is 100mm, the width is 4mm, and the height is 40mm. The length of steel plate 2 is 200mm, the width is 4mm, and the height is 40mm. The thickness of steel plate 1 and steel plate 2 are both less than 10mm, which greatly reduces the irregular cracking caused by stress accumulation and improves the durability and service life of the floor scale.
[0024] In order to fix the device well and prevent it from shifting under the impact of concrete, the length of the steel bar head 3 is 200 mm, and the length of the welding point 31 away from the end point of the steel bar head 3 and the steel plate 2 is 30 mm. By welding the steel bar head 3 at the welding point 31, the entire device is fixed to ensure that the entire device will not shift under the impact of concrete.
[0025] In order to achieve seamless connection of concrete and eliminate broken edges and irregular shapes, the steel bar head 3 is located 10 mm below the side of the steel plate 2, and the height of the concrete is the same as that of the steel plate 2, so that the steel bar head 3 is covered inside to achieve seamless connection of the concrete.
[0026] In order to increase the contact area between the device and the concrete and strengthen the connection between the device and the concrete, a plurality of elliptical protrusions 32 are fixedly connected to the surface of the steel bar head 3, and the elliptical protrusions 32 are evenly distributed. The elliptical protrusions 32 can enhance the grip and bonding force between the concrete and the steel bar head 3, so that the device can be more stably connected to the concrete.
[0027] Considering that the skip bin method can be used better, the steel plate 1 and the steel plate 2 are crossed in a "cross" shape in the horizontal and vertical directions, dividing the plane into four areas. Figure 4 The pouring sequence can better play the role of skip-bin pouring.
[0028] In summary, the working principle of this solution is as follows:
[0029] When the device is used, first use professional instruments to position and lay out the line, put the device in the corresponding position, first fix the cross intersection of the device, and then weld the welding points 31 of the steel bar head 3, with four steel bar heads 3 between the welding points 31. After fixing, Figure 4 The pouring is carried out in the pouring order. During pouring, it is noted that the concrete should be at the same height as the steel plate 1 and the steel plate 2, and the steel bar head 3 is completely covered to ensure that the steel bar head 3 can enhance the holding force and bonding force between the concrete and the steel bar head 3, and ensure a tighter connection and combination between the expansion joint and the newly poured concrete. The vertical steel bar head 3 is fixed so that the device is accurately positioned and will not be shifted due to the impact force of the newly poured concrete. The height design is 10mm lower than the floor thickness, so as to achieve seamless connection of the concrete and eliminate the existing broken edges and irregular shapes.
[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A novel finished metal weighbridge expansion joint structure, comprising a steel plate 1 (1), wherein the steel plate 1 (1) is fixedly connected to a steel plate 2 (2), and characterized in that: The steel plates 1 (1) and 2 (2) are arranged alternately, and the steel plates 1 (1) and 2 (2) are arranged in an "S" shape in both the horizontal and vertical directions. A steel bar head (3) is fixedly connected to the side of the steel plate 2 (2), and the steel bar heads (3) on adjacent steel plates 2 (2) extend in opposite directions. Welding points (31) are provided on the upper surfaces of the steel bar heads (3), and four steel bar heads (3) are spaced between the welding points (31).
2. The novel finished metal weighbridge expansion joint structure according to claim 1 is characterized in that: The length of the steel plate 1 (1) is 100 mm, the width is 4 mm, and the height is 40 mm. The length of the steel plate 2 (2) is 200 mm, the width is 4 mm, and the height is 40 mm.
3. The novel finished metal weighbridge expansion joint structure according to claim 1 is characterized in that: The length of the steel bar head (3) is 200 mm, and the distance between the welding point (31) and the end point of the steel bar head (3) farthest from the second steel plate (2) is 30 mm.
4. The novel finished metal weighbridge expansion joint structure according to claim 1 is characterized in that: The steel bar head (3) is located 10 mm below the side surface of the second steel plate (2).
5. The novel finished metal weighbridge expansion joint structure according to claim 1 is characterized in that: A plurality of elliptical protrusions (32) are fixedly connected to the surface of the steel bar head (3), and the elliptical protrusions (32) are evenly distributed.
6. The novel finished metal weighbridge expansion joint structure according to claim 1 is characterized by: The steel plate 1 (1) and the steel plate 2 (2) are intersected in a "cross" shape in the horizontal and vertical directions, dividing the plane into four areas.