Connecting system for prefabricated prestressed concrete pavement slabs of airport runway
By installing connectors, bolts, and nuts at the joints of airport runway panels, combined with shear keys and anchoring steel bars, the problems of insufficient mobility, deformation resistance, compressive strength, and sealing at the joints of runway panels were solved, achieving higher stress performance and stability.
Patent Information
- Application Number
- CN202423238981.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The existing airport runway panel joints lack flexibility, have poor resistance to deformation, bending and compression, and are not sufficiently sealed and stable, resulting in poor overall integrity and increased internal stress.
The prestressed concrete pavement panel connection system includes connectors, bolts, and nuts. The connectors are fixed to the nuts through through holes. Combined with shear keys and anchoring steel bars, the overall integrity and deformation resistance of the connection are enhanced. The elliptical through holes are used to fine-tune the position, improving mobility and sealing.
It improves the stress performance, load-bearing capacity and deformation resistance of the pavement slab, enhances the stability and sealing of the connection, avoids cracks and displacement, and improves the convenience and integrity of construction.
Smart Images
Figure CN223853091U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to airport pavement construction technical field especially, relates to a kind of airport runway prefabricated prestressed concrete pavement slab connecting system. BACKGROUND
[0002] Airport pavement is the super-long strip area used for supplying aviation aircraft to take off or land in the airport, and the airport pavement should have certain strength, flatness, roughness and stability to ensure the safety of aircraft taking off and landing. At present, the airport pavement mostly uses prefabricated assembly type concrete pavement slab, and the prefabricated concrete pavement slab is batched and processed in the prefabricated factory and then transported to the construction site of the airport for connection and assembly. The prefabricated concrete pavement slab of the airport runway has the advantages of fast construction speed, convenient repair and replacement and low cost. At present, the prefabricated assembly type concrete pavement slab is mainly connected through longitudinal joint, and due to the poor deformation resistance, bending resistance and compression resistance of concrete, the sealing property and stability of the joint of the prefabricated concrete pavement slab are insufficient, and the prefabricated concrete pavement slab lacks mobility, and the airport pavement has the problems of poor integrity and increased internal stress.
[0003] Therefore, it is desirable to have an airport runway prefabricated prestressed concrete pavement slab connecting system to solve the problems existing in the prior art. CONTENT OF THE UTILITY MODEL
[0004] (I) Technical problem to be solved
[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides an airport runway prefabricated prestressed concrete pavement slab connecting system, which solves the technical problems of lack of mobility, poor deformation resistance, bending resistance and compression resistance, and insufficient sealing property and stability at the connection between the prefabricated concrete pavement slabs.
[0006] (II) Technical scheme
[0007] In order to achieve the above-mentioned purpose, the utility model adopts an airport runway prefabricated prestressed concrete pavement slab connecting system, and the pavement slab connecting system comprises: a single-piece prestressed concrete pavement slab, a connecting piece, a bolt and a nut; the connecting piece is arranged above the splicing position of two adjacent single-piece prestressed concrete pavement slabs, the connecting piece is provided with a through hole, the nut is fixed in the single-piece prestressed concrete pavement slab, and the bolt is fixed relative to the nut through the through hole of the connecting piece.
[0008] The utility model sets the connecting piece on the airport runway prefabricated prestressed concrete pavement slab, enhances the connection integrity of the airport pavement, improves the stress performance, bearing capacity and deformation resistance of the airport pavement, thereby avoiding the technical problems of lack of mobility, poor deformation resistance, bending resistance and compression resistance, and insufficient sealing property and stability at the connection between the prefabricated concrete pavement slabs.
[0009] Preferably, the connecting piece is in the shape of an ellipse as a whole, and a circular through hole and an elliptical through hole are arranged at the left and right ends of the connecting piece respectively, and the bolt is fixed to the nut through the circular through hole and the elliptical through hole respectively, and the elliptical through hole is used for fine adjustment of the relative position between the single-piece prestressed concrete pavement panels, and the mobility of the joint of the prefabricated concrete pavement panel is improved.
[0010] Preferably, a first groove matched with the connecting piece is arranged above the joint of the single-piece prestressed concrete pavement panel, and a second groove recessed inward is arranged in the longitudinal direction of the joint of the single-piece prestressed concrete pavement panel, and the second groove is connected by cement mortar.
[0011] Preferably, the pavement panel connecting system further comprises a shear key arranged in the second groove of two adjacent single-piece prestressed concrete pavement panels, and used for resisting the vertical shear force between the adjacent pavement panels.
[0012] Preferably, an anchoring steel bar is arranged in the single-piece prestressed concrete pavement panel, and the end of the anchoring steel bar is connected to the nut, and used for fixing the relative position of the nut in the single-piece prestressed concrete pavement panel.
[0013] Preferably, the anchoring steel bars are distributed at equal intervals in the radial plane of the nut.
[0014] Preferably, the length of the nut is greater than the length of the screw rod of the bolt.
[0015] Preferably, the thickness of the connecting piece is greater than the thickness of the countersunk head of the bolt.
[0016] Preferably, a anti-loose gasket is arranged in the connecting piece, and the bolt is fixed to the nut through the anti-loose gasket.
[0017] (Three) beneficial effects
[0018] The utility model airport runway prefabricated prestressed concrete pavement panel connecting system sets up the shear key between two adjacent single-piece prestressed concrete pavement panels, and connects and fixes through the connecting piece and the bolt between the two adjacent single-piece prestressed concrete pavement panels.
[0019] 1. The connecting system is used between the prestressed concrete pavement panels, which improves the stress performance, bearing capacity and anti-deformation capacity of the prestressed concrete pavement panels, and avoids cracks in the prestressed concrete pavement panels.
[0020] 2. The connecting piece in the airport runway prefabricated prestressed concrete pavement panel connecting system is a double female mouth connecting structure, which facilitates construction operation when the prestressed concrete pavement panels are spliced.
[0021] 3. The connecting piece in the airport runway prefabricated prestressed concrete pavement panel connecting system effectively controls the displacement and dislocation of the prestressed concrete pavement panel in the horizontal direction.
[0022] 4. The shear key installed at the joint of the pre-stressed concrete pavement slab resists the vertical shear between the adjacent pavement slabs, and improves the sealing and stability of the precast concrete pavement slab.
[0023] 5. The oval hole in the connecting piece in the connecting system of the pre-stressed concrete pavement slab of the airport runway is used for fine adjustment of the relative position between the pre-stressed concrete pavement slabs, and improves the mobility of the joint of the precast concrete pavement slab. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is a structural schematic view of the single pre-stressed concrete pavement slab of the utility model.
[0025] Figure 2 It is a sectional structure schematic view of the connecting system of the pre-stressed concrete pavement slab of the utility model.
[0026] Figure 3 It is a top view of the connecting piece of the utility model.
[0027] Figure 4 It is a longitudinal sectional view of the connecting piece of the utility model.
[0028] Figure 5 It is a longitudinal sectional view of the bolt of the utility model.
[0029] EXPLANATION OF REFERENCE NUMERALS
[0030] 1: single pre-stressed concrete pavement slab;
[0031] 11: first groove;
[0032] 12: second groove;
[0033] 2: connecting piece;
[0034] 3: bolt;
[0035] 4: nut;
[0036] 5: shear key;
[0037] 6: anchoring steel bar. DETAILED DESCRIPTION
[0038] In order to better explain the utility model, so as to facilitate understanding, the following specific embodiments are combined with the drawings, and the utility model is described in detail. In this paper, the orientation of "up", "down", "left", "right" and other orientation terms is taken as the reference. Figure 2
[0039] The utility model airport runway prefabricated prestressed concrete pavement panel connecting system includes: single piece prestressed concrete pavement panel, connecting piece, bolt and nut, connecting piece sets up above two adjacent single piece prestressed concrete pavement panel splicing place, be provided with through -hole in connecting piece, nut is fixed in single piece prestressed concrete pavement panel, bolt passes through the through -hole of connecting piece and is opposite fixed with nut.
[0040] The utility model embodiment proposes setting connecting piece on the airport runway prefabricated prestressed concrete pavement panel, and the construction is convenient and the manufacturing technology is simple, the utility model embodiment airport runway prefabricated prestressed concrete pavement panel connecting system strengthens the connection integrity of airport pavement, improves the stress performance, bearing capacity and deformation resistance of airport pavement, thereby avoids the technical problem that the connecting place between prefabricated concrete pavement panel lacks activity, anti -deformation, anti -bending and poor compression resistance, and the sealing and stability are insufficient.
[0041] In order to better understand the above technical solutions, the exemplary embodiments of the utility model will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the utility model and to convey the complete scope of the utility model to those skilled in the art.
[0042] Embodiment 1:
[0043] As shown in Figures 1 to 5 The utility model airport runway prefabricated prestressed concrete pavement panel connecting system includes: single piece prestressed concrete pavement panel 1, connecting piece 2, bolt 3 and nut 4, two long edges of single piece prestressed concrete pavement panel 1 each set 3 first recess 11, two short edges each set 2 first recess 11, and the longitudinal direction of the edge splicing place of single piece prestressed concrete pavement panel 1 is provided with the second recess 12 that recesses inward.
[0044] Connecting piece 2 sets up in the first recess 11 of two adjacent single piece prestressed concrete pavement panel 1, and the first recess 11 is matched with connecting piece 2, and the whole connecting piece 2 is oval, and the left side of connecting piece 2 is provided with oval through -hole, and the right side is provided with circular through -hole, and two bolts 3 are opposite fixed with nut 4 through oval through -hole and circular through -hole, and the oval through -hole is used for fine adjustment the relative position between single piece prestressed concrete pavement panel 1, improves the activity of prefabricated concrete pavement panel splicing place.
[0045] The length of the screw rod of bolt 3 is greater than the length of nut 4, and the countersunk thickness is less than the thickness of connecting piece 2.
[0046] The single-piece prestressed concrete pavement slab 1 is provided with an anchoring steel bar 6, and the end of the anchoring steel bar 6 is connected with a nut 4, so as to fix the relative position of the nut 4 in the single-piece prestressed concrete pavement slab 1, and the anchoring steel bars 6 are distributed at equal intervals in the radial plane of the nut 4.
[0047] The shear key 5 is arranged in the second groove 12 of two adjacent single-piece prestressed concrete pavement slabs 1, and the second groove 12 is connected by using cement mortar, and the shear key 5 is used for resisting the vertical shear of the pavement slab and improving the sealing performance and stability of the prefabricated concrete pavement slab.
[0048] In an embodiment not shown, a separation-preventing gasket is arranged in the connecting piece, and the bolt is fixed relative to the nut through the separation-preventing gasket.
[0049] In the description of the present application, it should be understood that the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.
[0050] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0051] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature is "above", "above" and "above" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.
[0052] In the description of the utility model, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.
[0053] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and change the above-mentioned embodiments within the scope of the utility model.
Claims
1. An airport runway precast prestressed concrete pavement panel connection system, characterized by: The pavement panel connecting system comprises single-piece prestressed concrete pavement panels (1), connecting pieces (2), bolts (3) and nuts (4). The connecting pieces (2) are arranged above the joint of two adjacent single-piece prestressed concrete pavement panels (1), the connecting pieces (2) are provided with through holes, the nuts (4) are fixed in the single-piece prestressed concrete pavement panels (1), and the bolts (3) are fixed opposite to the nuts (4) through the through holes of the connecting pieces (2).
2. The airport runway precast prestressed concrete pavement panel connection system according to claim 1, wherein: The connecting pieces (2) are in the shape of an ellipse as a whole, the left and right ends of the connecting pieces (2) are respectively provided with circular through holes and elliptical through holes, the bolts (3) are fixed opposite to the nuts (4) through the circular through holes and the elliptical through holes, and the elliptical through holes are used for fine adjustment of the relative positions of the single-piece prestressed concrete pavement panels (1).
3. The airport runway precast prestressed concrete pavement panel connection system according to claim 2, wherein: The upper part of the joint of the single-piece prestressed concrete pavement panels (1) is provided with a first groove (11) matched with the connecting pieces (2), and the longitudinal direction of the joint of the single-piece prestressed concrete pavement panels (1) is provided with a second groove (12) recessed inward, and the second groove (12) is connected by cement mortar.
4. The airport runway precast prestressed concrete pavement panel connection system according to claim 3, wherein: The pavement panel connecting system further comprises shear keys (5) arranged in the second grooves (12) of two adjacent single-piece prestressed concrete pavement panels (1) and used for resisting vertical shearing force between adjacent pavement panels.
5. The airport runway precast prestressed concrete pavement panel connection system according to any one of claims 1-4, characterized in that: The single-piece prestressed concrete pavement panels (1) are provided with anchoring steel bars (6), the ends of the anchoring steel bars (6) are connected to the nuts (4), and the anchoring steel bars (6) are used for fixing the relative positions of the nuts (4) in the single-piece prestressed concrete pavement panels (1).
6. The airport runway precast prestressed concrete pavement panel connection system according to claim 5, wherein: The anchoring steel bars (6) are distributed at equal intervals in the radial plane of the nuts (4).
7. The airport runway precast prestressed concrete pavement panel connection system according to claim 1, wherein: The length of the nuts (4) is greater than the length of the screw rods of the bolts (3).
8. The airport runway precast prestressed concrete pavement panel connection system according to claim 7, wherein: The thickness of the connecting pieces (2) is greater than the thickness of the countersunk heads of the bolts (3).
9. The airport runway precast prestressed concrete pavement panel connection system according to claim 8, wherein: The connecting pieces (2) are provided with anti-falling gaskets, and the bolts (3) are fixed opposite to the nuts (4) through the anti-falling gaskets.