Efficient plugging device for expansion joint of industrial building foundation
By pouring fixed sealed steel plate parts at the expansion joints of highway bridges and reinforcing them, the problem of filling logistics outflow under high temperature conditions in the prior art is solved, and a more efficient sealing effect and extended bridge service life is achieved.
Patent Information
- Application Number
- CN202421831013.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing highway bridge expansion joint device is filled with logistics under high temperature conditions, resulting in poor sealing and affecting service life.
An efficient sealing device for expansion joints of industrial building foundations is designed. By casting fixed sealing steel plate parts on the pavement foundation, and fixing their position with reinforced steel columns and poured concrete to ensure that the sealing steel plate parts are flush with the bridge deck.
It effectively avoids the problem of sealing expansion joints under high temperature conditions, ensures that the bridge deck is flat, reduces damage to the edges of expansion joints when heavy-duty vehicles pass, and extends the service life of the bridge.
Smart Images
Figure CN222893447U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of highway bridge expansion joints, and particularly relates to an efficient plugging device for expansion joints of industrial building foundations. Background Art
[0002] Highway bridge expansion joints are part of the bridge structure, which are expansion devices set at the beam ends of the bridge or between the beam ends and the abutments. By freely expanding and contracting, they ensure good connection between the bridge deck and the road surface, and between the bridge decks. The construction of the expansion joint is an important project in bridge construction, and the quality of its construction directly affects the smoothness, comfort, safety of future driving, as well as the service quality and service life of the bridge. In the past highway bridge expansion joints, there was a packed expansion joint composed of asphalt and felt pads. When applied, its cost investment was relatively small and it was relatively widely used initially. However, its heat resistance treatment effect was not good. Once the temperature was too high, the filler would flow out, affecting the use of the expansion joint.
[0003] Therefore, a highway bridge expansion joint device with the publication number of "CN216640239U" includes: an external main structure and an internal strengthening structure; among them, the external main structure includes multiple beam bodies, multiple fixing blocks are fixedly installed inside the beam bodies, a rock wool heat insulation layer is bonded to the outside of the fixing blocks, and reinforcing ribs are fixedly installed inside the fixing blocks; a first rubber filling layer is bonded to the outside of the I-beam to ensure the stability between multiple fixing blocks. At the same time, a rock wool heat insulation layer is set outside the fixing blocks to ensure the heat insulation performance and avoid the influence of high temperature on the inside of the expansion joint. At the same time, through the setting of the first arc-shaped elastic sheet and the first rubber filling layer, when the expansion joint is compressed, the impact force is actively reduced, and the damage caused by the impact force to the expansion joint is reduced. At the same time, springs and second arc-shaped elastic sheets are installed between the beam bodies through fixing plates and mounting plates to ensure the connection strength between multiple beam bodies, and at the same time, the expansion and contraction stability of the expansion joint is strengthened by using the springs and the second arc-shaped elastic sheets.
[0004] However, for the above-mentioned highway bridge expansion joint device, although in order to prevent rainwater from entering the expansion joint and causing corrosion damage, an arc-shaped water stop plate is installed on the beam body, a second rubber filling layer is bonded to the outside of the arc-shaped water stop plate, a waterproof plate is bonded to the outside of the second rubber filling layer, and the waterproof plate is fixedly connected to the beam body. There are still the following obvious defects during use: the arc-shaped water stop plate integrated with the bridge deck in the above-mentioned expansion joint plugging device is an arc-shaped protrusion not on the same horizontal plane. Due to the continuous rolling of heavy-duty vehicles over the arc-shaped water stop plate, the arc-shaped water stop plate will be continuously bent and deformed, resulting in the problem that the arc-shaped water stop plate is continuously rolled and deformed and breaks, and it will also cause damage to the bridge decks on both sides of the expansion joint. Summary of the Utility Model
[0005] The purpose of the utility model is to provide an efficient plugging device for expansion joints of industrial building foundations, so as to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an efficient sealing device for expansion joints of industrial building foundations, comprising a pavement foundation, and a sealing steel plate cast and fixed on the expansion joint reserved on the surface of the pavement foundation, cast concrete for fixing the sealing steel plate is cast on both sides of the expansion joint reserved on the surface of the pavement foundation and at the end of the pavement foundation, the end of the cast concrete is provided with a fixed concave surface that keeps the sealing steel plate level with the pavement foundation surface, reinforcement steel columns for reinforcing the sealing steel plate after the cast concrete solidifies are evenly welded on both sides of the lower end of the sealing steel plate, and a foam partition is provided at the bottom of the sealing steel plate corresponding to the position of the pavement foundation expansion joint.
[0007] Preferably, the blocking steel plate is solidified inside the fixed concave surface, and the reinforcing steel column is inserted into the poured concrete for fixation, so that the blocking steel plate can become stronger and integrated with the bridge deck after the poured cement solidifies.
[0008] Preferably, the surface of the pavement foundation is located on both sides of the expansion joint and has casting concave surfaces chiseled out for fixing the poured concrete and the sealing steel plates. The sealing steel plates can be kept horizontal with the bridge deck with the auxiliary fixation of the poured concrete, so that the sealing steel plates and the pavement foundation can bear the same gravity when vehicles pass by.
[0009] Preferably, the blocking steel plate member is inserted into the expansion joint reserved between the road surface foundation through the fixed concave surface on the cast concrete, so that the expansion joint is prevented from deformation and extrusion damage due to the obstruction of the foam partition.
[0010] Preferably, a edging cavity is formed between the sealing steel plate and the fixed concave surface on the cast concrete, and an L-shaped edging angle steel is fixed inside the edging cavity and on the surface of the cast concrete, which can effectively prevent the edges of the expansion joint from being damaged under the pressure of gravity from the sealing steel plate.
[0011] Preferably, one end of the edge angle steel is embedded in the surface of the cast concrete and is flush with the surface of the cast concrete. The inner side of the edge angle steel is provided with a portion extending into the cast concave surface and fixed as a whole by casting concrete. The sealing of the expansion joint will not affect the normal expansion and contraction of the pavement foundation.
[0012] Compared with the prior art, the technical effects and advantages of the utility model are as follows: the efficient sealing device for expansion joints of industrial building foundations, through the combined effect of pavement foundation, sealing steel plate, poured concrete, reinforced steel column and edge-wrapped angle steel on the expansion joint sealing, makes the pavement foundation and the steel plate seal the expansion joint by pouring concrete, and the reinforced steel column is inserted into the poured concrete and solidified and fixed, so that the sealing steel plate and the surface of the pavement foundation can be on the same horizontal plane, thereby realizing the reinforcement and sealing of the expansion joint, making the sealing steel plate firmly seal at the end of the expansion joint flush with the foundation surface, and using edge-wrapped angle steel to perform flush edge-wrapped protection treatment on the edges of the sealing steel plate and the poured concrete, so that the edge of the pavement foundation is effectively protected, avoiding damage to the edge of the expansion joint and the phenomenon of rolling deformation during the passage of heavy-loaded vehicles, and ensuring the smooth passage of people and vehicles at the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the top view structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the main structure of the plugging steel plate of the utility model.
[0016] In the figure: 1. Pavement foundation; 2. Sealing steel plate; 3. Pouring concrete; 4. Fixing concave surface; 5. Reinforcing steel column; 6. Foam partition; 7. Pouring concave surface; 8. Edge-wrapped cavity; 9. Edge-wrapped angle steel. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of 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.
[0018] See also Figure 1-3The utility model provides a technical solution: an efficient plugging device for expansion joints of industrial building foundations, comprising a road foundation 1, and a plugging steel plate 2 cast and fixed on the expansion joint reserved on the surface of the road foundation 1, the thickness of the plugging steel plate 2 is 20 mm, so that the strength of the road foundation 1 is guaranteed after the plugging steel plate 2 plugs the expansion joint, and cast concrete 3 for fixing the plugging steel plate 2 is cast on both sides of the expansion joint reserved on the surface of the road foundation 1 and at the end of the road foundation 1, so that the plugging steel plate 2 is firmly combined into one under the solidification of the cast concrete 3, and is flush with the surface of the road foundation 1, so that the road surface is better leveled, and the end of the cast concrete 3 is provided with a plugging steel plate 2 and the road surface The surface of the foundation 1 is kept horizontal with a fixed concave surface 4, and the thickness of the sealing steel plate 2 is the same as the depth of the fixed concave surface 4, so the sealing steel plate 2 can remain level with the road surface after being solidified with the poured concrete 3. Both sides of the lower end of the sealing steel plate 2 are evenly welded with reinforcing steel columns 5 for reinforcing the sealing steel plate 2 after the poured concrete 3 is solidified. The reinforcing steel columns 5 are supported in the poured concave surface 7 for solidification and fixation inside the poured concrete 3, so that the reinforcing steel columns 5 can strengthen the stable support for the sealing steel plate 2. The bottom of the sealing steel plate 2 is provided with a foam partition 6 at the position corresponding to the expansion joint of the road foundation 1, which is convenient for pouring concrete during construction. After the pouring of concrete, it will not affect the thermal expansion and contraction of the original foundation.
[0019] The sealing steel plate 2 is solidified inside the fixed concave surface 4, and the reinforcing steel column 5 is inserted into the cast concrete 3 for fixation. The surface of the pavement foundation 1 is located on both sides of the expansion joint and has a casting concave surface 7 chiseled out to cast the cast concrete 3 and fix the sealing steel plate 2. After the cast concrete 3 is poured into the casting concave surface 7, it is blocked by the foam partition 6 to prevent the cast concrete 3 from leaking from the expansion joint, thereby solidifying, wrapping and fixing the reinforcing steel column 5. The sealing steel plate 2 allows the foam partition 6 to be inserted into the expansion joint reserved between the pavement foundation 1 through the fixed concave surface 4 on the cast concrete 3, thereby reducing the impact between the inner walls of the expansion joint.
[0020] An edging cavity 8 is formed between the sealing steel plate 2 and the fixed concave surface 4 on the cast concrete 3, and an edging angle steel 9 can be placed in the edging cavity 8 to protect the edge. An L-shaped edging angle steel 9 is fixed in the edging cavity 8 and on the surface of the cast concrete 3 to start the edging protection of the edge of the cast concrete 3 and reduce damage. One end of the edging angle steel 9 is embedded in the surface of the cast concrete 3 and is flush with the surface of the cast concrete 3. The inner side of the edging angle steel 9 is provided with a portion extending into the cast concave surface 7 and fixed as a whole by the cast concrete 3, thereby strengthening the firmness of the sealing steel plate 2 for sealing the expansion joint and will not affect the normal expansion and contraction of the pavement foundation 1.
[0021] Specifically, when in use, first measure the width of the expansion joint of the road foundation 1, and lay out the parts that need to be chiseled off on both sides to ensure that the two sides are parallel, then remove the original expansion joint floor to form a casting concave surface 7, and embed accessories according to the expansion joint width and the casting concave surface 7, so that the bottom surface of the blocking steel plate 2 is combined with a number of reinforcing steel columns 5 and welding, and the combined blocking steel plate is kept flush with the bridge deck, and a rubber sheet is inserted into the casting concave surface 7 and the expansion joint position, and then pour the casting concave surface 7 into the casting concrete 3, ensuring that the expansion joint of the poured casting concrete 3 is consistent with the position of the original foundation expansion joint, and the casting concrete 3 differs from the road surface by 20mm (the thickness of the blocking steel plate 2) A fixed concave surface 4 is formed, and then the surface of the poured concrete 3 is smoothed and kept level with the road surface, so that the blocking steel plate 2 and the reinforcing steel column 5 can be solidified as one to block the expansion joint, and the L-shaped edge angle steel 9 and the edges of the poured concrete 3 and the blocking steel plate 2 are protected, so that the edge of the road foundation 1 will not be damaged. The blocking steel plate 2 is poured with poured concrete 3 to ensure the foundation strength, and the edge angle steel 9 is added to prevent the edge of the expansion joint from being damaged. When the original expansion joint is chiseled out, the original foundation steel bars are not damaged, and the new expansion joint is aligned with the expansion joint of the road foundation 1, which does not affect the normal expansion and contraction of the road foundation 1. Avoid damage to the edge of the expansion joint during the passage of heavy-loaded vehicles, ensure the smooth passage of personnel and vehicles at the expansion joint, and the covering blocking steel plate 2 is replaceable.
[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An efficient plugging device for expansion joints of industrial building foundations, comprising a road foundation (1), and a plugging steel plate (2) cast and fixed on the expansion joints reserved on the surface of the road foundation (1), characterized in that: Cast concrete (3) for fixing the plugging steel plate (2) is cast on both sides of the expansion joint reserved on the surface of the road surface foundation (1) and at the end of the road surface foundation (1). The end of the cast concrete (3) is provided with a fixed concave surface (4) for keeping the plugging steel plate (2) and the surface of the road surface foundation (1) level. Reinforcement steel columns (5) for reinforcing the plugging steel plate (2) after solidification with the cast concrete (3) are evenly welded on both sides of the lower end of the plugging steel plate (2). A foam partition (6) is provided at the bottom of the plugging steel plate (2) at a position corresponding to the expansion joint of the road surface foundation (1).
2. The highly efficient plugging device for expansion joints of industrial building foundations according to claim 1 is characterized by: The blocking steel plate (2) is solidified inside the fixed concave surface (4), and the reinforcing steel column (5) is inserted into the pouring concrete (3) for fixation.
3. The high-efficiency plugging device for expansion joints of industrial building foundations according to claim 1 is characterized by: The surface of the road surface foundation (1) is chiseled out on both sides of the expansion joint to form a casting concave surface (7) for casting concrete (3) and fixing the sealing steel plate (2).
4. The highly efficient plugging device for expansion joints of industrial building foundations according to claim 1 is characterized by: The blocking steel plate member (2) is inserted into the fixed concave surface (4) on the poured concrete (3) so that the foam partition (6) is inserted into the expansion joint reserved between the road surface foundation (1).
5. The highly efficient plugging device for expansion joints of industrial building foundations according to claim 1 is characterized by: An edge-wrapped cavity (8) is formed between the blocking steel plate (2) and the fixed concave surface (4) on the cast concrete (3), and an L-shaped edge-wrapped angle steel (9) is fixed to the edge of the edge-wrapped cavity (8) and the surface of the cast concrete (3).
6. The highly efficient plugging device for expansion joints of industrial building foundations according to claim 5 is characterized by: One end of the edge angle steel (9) is embedded in the surface of the cast concrete (3) and is flush with the surface of the cast concrete (3). The inner side of the edge angle steel (9) is provided with a portion extending into the cast concave surface (7) and fixed as a whole by casting the cast concrete (3).