Oversized expansion joint cover plate preset structure
By designing a pre-structured cover plate for ultra-large expansion joints, and using steel mesh-like interlaced strips and movable ear plates, the problems of insufficient width, long processing cycle, and poor stress performance of traditional cover plates in ultra-large expansion joints are solved, achieving efficient and economical construction results.
Patent Information
- Application Number
- CN202520059709.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Traditional expansion joint covers suffer from problems such as insufficient width, long processing cycle, poor load-bearing performance, and poor economic benefits when dealing with ultra-large expansion joints.
An ultra-large expansion joint cover plate pre-designed structure was designed, which uses a horizontal cover plate made of steel and a grid-like distribution of transverse and longitudinal vertical strips, combined with vertical baffles to form multiple casting grooves, and is connected to the base through a fixed shaft, allowing the ear plate to rotate and move freely to adapt to the changes in the expansion joint.
It enhances the integrity and stability of the cover plate, improves its load-bearing performance, shortens the construction cycle, saves costs, ensures pedestrian safety and construction efficiency, and improves aesthetics and pedestrian comfort.
Smart Images
Figure CN223689098U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building construction, and specifically relates to a super large expansion joint cover plate preset structure. BACKGROUND
[0002] In the field of building construction, especially in the connection between newly built buildings and existing buildings, the design of expansion joints is crucial. Because different buildings may adopt different foundation and base forms, such as raft foundation of newly built structures and independent foundation of existing buildings, which will lead to significant relative displacement between the two. In order to adapt to such displacement and ensure the safety of the structure, expansion joints are usually set in the middle of the building. Traditional expansion joint cover plates are widely used in small-width gaps, which can effectively protect the internal structure from the influence of the external environment and provide a safe passage for pedestrians. The width of ordinary expansion joints is generally between 20mm to 40mm, while larger expansion joints may reach 40mm to 100mm.
[0003] However, when facing super large expansion joints, i.e. the width exceeds 100mm or even reaches several meters wide, the traditional expansion joint cover plate will expose obvious limitations and deficiencies. First of all, the width of the traditional expansion joint cover plate is often insufficient to cover such a large gap, even if it is customized to meet the width requirement, it also faces the problem of long processing cycle, which cannot quickly respond to the needs of the construction site; secondly, the thickness and material design of the traditional expansion joint cover plate cannot fully meet the stress requirements of the super large expansion joint, resulting in poor economic benefits and increased material costs.
[0004] Therefore, it is necessary to invent a super large expansion joint cover plate preset structure to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] The utility model provides a super large expansion joint cover plate preset structure to solve the problems of insufficient width, long processing cycle, poor stress performance and poor economic benefits of the traditional expansion joint cover plate when facing super large expansion joints.
[0006] The utility model is implemented by adopting the following technical solutions:
[0007] The utility model provides an oversize expansion joint cover plate preset structure, including two adjacent concrete structures, and the expansion joint is formed between two concrete structures, and the upper surface of concrete structure is paved with the brick layer, and the installation groove is reserved on the brick layer, and the horizontal fixed plate is fixed in the installation groove and on the upper surface of concrete structure, the upper surface of horizontal fixed plate is fixed with the base, the ear plate is rotatably connected on the base, the rear end of ear plate is fixed with the horizontal cover plate, the horizontal cover plate is located between the upper surface of two concrete structures and covers on the expansion joint, the width of horizontal cover plate is greater than the width of expansion joint, the upper surface of horizontal cover plate is fixed with the horizontal vertical batten and longitudinal vertical batten staggered distribution in the form of grid, the rear end of horizontal cover plate is the upward curved surface, the front side, left side and right side of horizontal cover plate are all fixed with the vertical baffle, and horizontal cover plate, horizontal vertical batten, longitudinal vertical batten and vertical baffle cooperatively form a plurality of pouring grooves, and each pouring groove is filled with mortar, and the upper surface of mortar is flush with the upper surface of horizontal vertical batten and longitudinal vertical batten.
[0008] Further, the base includes a plurality of pairs of support plates, each pair of support plates is provided with a fixed shaft, the number of ear plates is equal to the number of fixed shafts, each ear plate is provided with a mounting hole, and each ear plate is rotatably connected to the corresponding fixed shaft through the mounting hole, and the length of each fixed shaft is greater than the thickness of the corresponding ear plate.
[0009] Further, the horizontal cover plate is square.
[0010] Further, the height of the horizontal vertical batten and the longitudinal vertical batten is 8 cm, and the upper surfaces of the horizontal vertical batten, the longitudinal vertical batten and the vertical baffle are flush.
[0011] Further, the vertical baffle on the front side of the horizontal cover plate forms a reserved groove with the brick layer, the width of the reserved groove is 10 cm, and a finished product deformation joint cover plate is arranged on the top of the reserved groove.
[0012] Further, the upper surface of the mortar is provided with a self-leveling layer, and the upper surface of the self-leveling layer is flush with the upper surface of the brick layer.
[0013] Further, the horizontal fixed plate, the ear plate, the horizontal cover plate, the horizontal vertical batten, the longitudinal vertical batten and the vertical baffle are all made of steel.
[0014] The utility model discloses reasonable and reliable structure design, and horizontal cover plate is equipped with the horizontal vertical batten and vertical vertical batten of grid interlaced distribution and three vertical baffle, and common formation multiple pouring groove, and after filling mortar, the integrity and stability of its are strengthened, and the stress performance of its is strengthened, and the steel of guaranteeing this cover plate preset structure thickness is saved simultaneously, and further save the cost, improve the economic benefit, because the weight of the lightening and the stress performance of improvement, the width of this horizontal cover plate can satisfy the need of super big expansion joint, solve the problem of the width deficiency of traditional expansion joint cover plate when facing super big expansion joint, the ear plate is connected with the base through the fixed shaft, and the horizontal cover plate can adapt to the width change of expansion joint, ensure the safety of the pedestrian, and avoid the problem of reordering, effectively improve the construction efficiency, shorten the construction period, in addition, the self-leveling layer improves the aesthetic degree and the passing comfort. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the structure schematic diagram of the utility model.
[0016] Figure 2 It is the plan view of horizontal cover plate in the utility model.
[0017] In the drawing: 1, concrete structure, 2, brick layer, 3, horizontal fixed plate, 4, ear plate, 5, horizontal cover plate, 6, horizontal vertical batten, 7, vertical vertical batten, 8, vertical baffle, 9, support plate, 10, fixed shaft, 11, finished product deformation joint cover plate, 12, self-leveling layer. DETAILED DESCRIPTION
[0018] A super big expansion joint cover plate preset structure, as shown in the accompanying drawings, Figure 1 The accompanying drawings Figure 2 As shown, it includes two adjacent concrete structures 1, and the expansion joint is formed between the two concrete structures 1, the upper surface of the concrete structure 1 is paved with a brick layer 2, the brick layer 2 is provided with a mounting groove, the horizontal fixed plate 3 is fixed on the upper surface of the concrete structure 1 in the mounting groove, the upper surface of the horizontal fixed plate 3 is fixed with a base, the ear plate 4 is rotatably connected to the base, the rear end of the ear plate 4 is fixed with the horizontal cover plate 5, the horizontal cover plate 5 is square, the horizontal cover plate 5 is located between the upper surfaces of the two concrete structures 1 and covers the expansion joint, the width of the horizontal cover plate 5 is greater than the width of the expansion joint, the horizontal cover plate 5 is fixed with the horizontal vertical batten 6 and the vertical vertical batten 7 in a grid interlaced distribution on the upper surface, the rear end of the horizontal cover plate 5 is an upward curved surface, the front side, left side and right side of the horizontal cover plate 5 are all fixed with the vertical baffle 8, and the horizontal cover plate 5 cooperates with the horizontal vertical batten 6, the vertical vertical batten 7 and the vertical baffle 8 to form multiple pouring grooves, each pouring groove is filled with mortar, and the upper surface of the mortar is flush with the upper surfaces of the horizontal vertical batten 6 and the vertical vertical batten 7.
[0019] The horizontal fixed plate 3, the lug plate 4, the horizontal cover plate 5, the transverse vertical batten 6, the longitudinal vertical batten 7 and the vertical baffle 8 are all made of steel.
[0020] The transverse vertical batten 6 and the longitudinal vertical batten 7 which are staggered and distributed in a grid shape on the horizontal cover plate 5 and the three vertical baffles 8 jointly form a plurality of pouring grooves, the pouring grooves can improve the integrity and stability of the horizontal cover plate 5 after being filled with mortar, and the stress performance is enhanced, the steel material is saved while the preset structure thickness of the cover plate is ensured, and then the cost is saved and the economic benefit is improved, and the width of the horizontal cover plate 5 can meet the needs of the super large expansion joint due to the reduction of the self weight and the improvement of the stress performance, and the problem of insufficient width of the traditional expansion joint cover plate when facing the super large expansion joint is solved.
[0021] The base comprises a plurality of pairs of support plates 9, a fixed shaft 10 is arranged between each pair of support plates 9, the number of lug plates 4 is equal to the number of fixed shafts 10, an installation hole is formed in each lug plate 4, and each lug plate 4 is rotationally connected to the corresponding fixed shaft 10 through the installation hole, and the length of each fixed shaft 10 is greater than the thickness of the corresponding lug plate 4.
[0022] The utility model discloses based on its flexible mechanical design and stable structure, when the building is relatively displaced due to temperature change or ground subsidence, the width of the expansion joint formed between the two adjacent concrete structures 1 will change, at this moment, the lug plate 4 can rotate freely through the fixed shaft 10, so that the horizontal cover plate 5 can adjust the position according to the actual size and direction of the expansion joint, and the curved surface design of the horizontal cover plate 5 allows it to make slight vertical movement according to the expansion and contraction change of the expansion joint, provides additional buffer space, thereby keeping the horizontal cover plate 5 stable, this design not only ensures that the horizontal cover plate 5 always covers the expansion joint, but also reduces the safety hidden danger that the pedestrian may encounter when passing through, simultaneously avoids the problem that needs to be re-ordered due to the change of the expansion joint, effectively improves the construction efficiency, and then shortens the construction period, and the length of the fixed shaft 10 is greater than the thickness of the lug plate 4, so that the lug plate 4 can not only rotate freely around the fixed shaft 10, but also can move horizontally along the length direction of the fixed shaft 10, so that the horizontal cover plate 5 can adjust the horizontal position according to the actual needs, to adapt to the different expansion and contraction of the expansion joint, and the flexibility of the preset structure of the cover plate is improved.
[0023] The height of the transverse vertical batten 6 and the longitudinal vertical batten 7 is 8cm, and the upper surfaces of the transverse vertical batten 6, the longitudinal vertical batten 7 and the vertical baffle 8 are flush.
[0024] The upper surface of the mortar is provided with a self-leveling layer 12, and the upper surface of the self-leveling layer 12 is flush with the upper surface of the paving layer 2.
[0025] The design that the upper surfaces of the transverse vertical batten 6, the longitudinal vertical batten 7 and the vertical baffle 8 are flush ensures the flatness after mortar filling, improves the consistency and the aesthetic degree of the self-leveling layer 12 decoration, and helps to ensure the stability and durability of the whole cover plate preset structure; the design that the upper surface of the self-leveling layer 12 is flush with the upper surface of the paving brick layer 2 ensures the safety and comfort of pedestrian traffic, and protects the internal structure from the influence of the external environment.
[0026] The vertical baffle 8 of the front side of the horizontal cover plate 5 and the paving brick layer 2 form a reserved groove, the width of the reserved groove is 10 cm, and the top of the reserved groove is covered with a finished product deformation joint cover plate 11.
[0027] The finished product deformation joint cover plate 11 further increases the durability and safety of the cover plate preset structure.
[0028] During installation, first, the specific position of the expansion joint between two adjacent concrete structures 1 is determined according to the design drawing, then the paving brick layer 2 is laid and the installation groove is reserved, the size and depth thereof are ensured to meet the requirements of the cover plate preset structure, then the horizontal fixing plate 3 is fixed on the upper surface of the concrete structure 1, the prefabricated horizontal cover plate 5 with the base is placed between the upper surfaces of the two concrete structures 1 in the installation groove and covers the expansion joint, after ensuring that the horizontal cover plate 5 completely covers the expansion joint, the base is welded on the upper surface of the horizontal fixing plate 3, then the mortar is filled in each pouring groove, the upper surface of the mortar is ensured to be flush with the upper surfaces of the transverse vertical batten 6 and the longitudinal vertical batten 7, after the mortar reaches the design strength, the self-leveling layer 12 is applied, the upper surface of the self-leveling layer 12 is ensured to be flush with the upper surface of the paving brick layer 2, finally, the finished product deformation joint cover plate 11 is installed on the top of the reserved groove, thereby completing the installation of the cover plate preset structure; the problems of insufficient width, long processing period, poor stress performance and poor economic benefits of the traditional expansion joint cover plate when facing an oversized expansion joint are overcome.
[0029] In the description of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application.
[0030] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A super large expansion joint cover plate preset structure, comprising two adjacent concrete structures (1), and an expansion joint is formed between the two concrete structures (1), and the upper surface of the concrete structure (1) is paved with a paving brick layer (2), characterized in that: The brick layer (2) is provided with a mounting groove, a horizontal fixing plate (3) is fixed on the upper surface of the concrete structure (1) in the mounting groove, a base is fixed on the upper surface of the horizontal fixing plate (3), an ear plate (4) is rotatably connected to the base, a horizontal cover plate (5) is fixed to the rear end of the ear plate (4), the horizontal cover plate (5) is located between the upper surfaces of the two concrete structures (1) and covers the expansion joint, the width of the horizontal cover plate (5) is greater than the width of the expansion joint, the upper surface of the horizontal cover plate (5) is fixed with transverse vertical plate strips (6) and longitudinal vertical plate strips (7) which are staggered in a grid shape, the rear end of the horizontal cover plate (5) is an upward curved surface, the front side, left side and right side of the horizontal cover plate (5) are all fixed with vertical baffle plates (8), the horizontal cover plate (5) cooperates with the transverse vertical plate strips (6), longitudinal vertical plate strips (7) and vertical baffle plates (8) to form a plurality of pouring grooves, each pouring groove is filled with mortar, and the upper surface of the mortar is flush with the upper surfaces of the transverse vertical plate strips (6) and longitudinal vertical plate strips (7).
2. The super expansion joint cover plate pre-set structure according to claim 1, characterized in that: The base comprises a plurality of pairs of support plates (9), a fixed shaft (10) is arranged between each pair of support plates (9), the number of ear plates (4) is equal to the number of fixed shafts (10), an installation hole is formed in each ear plate (4), and each ear plate (4) is rotatably connected to the corresponding fixed shaft (10) through the installation hole, and the length of each fixed shaft (10) is greater than the thickness of the corresponding ear plate (4).
3. The super expansion joint cover plate pre-set structure according to claim 1, characterized in that: The horizontal cover plate (5) is square.
4. The super expansion joint cover plate pre-set structure according to claim 1, characterized in that: The heights of the transverse vertical plate strips (6) and longitudinal vertical plate strips (7) are both 8 cm, and the upper surfaces of the transverse vertical plate strips (6), longitudinal vertical plate strips (7) and vertical baffle plates (8) are flush.
5. The super expansion joint cover plate pre-set structure according to claim 1, characterized in that: The vertical baffle plate (8) on the front side of the horizontal cover plate (5) forms a reserved groove with the brick layer (2), the width of the reserved groove is 10 cm, and a finished product deformation joint cover plate (11) is arranged on the top of the reserved groove.
6. The super expansion joint cover plate pre-set structure according to claim 1, characterized in that: A self-leveling layer (12) is arranged on the upper surface of the mortar, and the upper surface of the self-leveling layer (12) is flush with the upper surface of the brick layer (2).
7. The super expansion joint cover plate pre-set structure according to claim 1, characterized in that: The horizontal fixing plate (3), ear plate (4), horizontal cover plate (5), transverse vertical plate strip (6), longitudinal vertical plate strip (7) and vertical baffle plate (8) are all made of steel.