Prestressed laminated sheet
By abolishing the truss pipe in the X direction and adding the Y direction truss ribs, the potential defects of the traditional prestressed superposition thin plate in the X and Y directions are solved, achieving more stable structural performance and cost-reducing effect.
Patent Information
- Application Number
- CN202421304863.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-10
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-10
AI Technical Summary
The traditional prestressed superposition thin plate has defects in the X and Y directions, and the truss tube aggravates the adverse deformation of the base plate, and the distribution ribs in the Y direction are poor, making cracks prone to occur.
The truss tube in the X direction is cancelled, and instead it is arranged in parallel along the Y direction or arranged at an angle between the X and Y directions, and the truss tube in the Y direction is added to make up for the insufficient mechanical performance.
The upward bending deformation caused by truss pipes is avoided, the Y-direction stress capacity is enhanced, the amount of steel bars is reduced, the cost is reduced, and the overall performance of the structure is improved.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of prefabricated laminated plates, in particular to a prestressed laminated thin plate. Background Art
[0002] Traditional prestressed laminated thin plate structures are widely used in construction and other fields. They consist of a bottom plate and a top truss tube. Fig. 9 As shown, the general thickness of the bottom plate 1 is 35mm-40mm, and the internal force reinforcement (prestressed reinforcement) is arranged along the X direction, and the φ5@600 small diameter distribution reinforcement is arranged along the Y direction. The multiple truss tubes 5 are arranged in parallel in the X direction in the same direction as the force reinforcement 2.
[0003] The original intention of the design is to use the high rigidity of the truss tube to prevent the base plate from being deformed adversely under the prestress of the force reinforcement. In theory, the prestress applied by the force reinforcement will cause the base plate to produce axial tensile stress, and will also cause the base plate to bend upward. The addition of the truss tube can limit and offset this bending deformation through its high rigidity, thereby avoiding problems such as overall damage or cracks in the base plate.
[0004] However, in the actual production, transportation, hoisting and other processes, the inventors found that the truss tubes arranged along the X direction may aggravate the adverse deformation of the bottom plate. The reason is that when there is no truss tube, the bottom plate can be regarded as an integral central tension member, and the tensile stress acts on the entire cross section, which is not easy to arch; but after adding the truss tube, the whole becomes an eccentric force-bearing member, and the tensile stress is mainly concentrated at the connection between the bottom plate and the truss tube, which is more likely to cause upward arch deformation, and may even cause the overall damage or cracking of the prestressed laminated thin plate.
[0005] In addition to the above problems in the X direction, there are also defects in the setting of the Y direction. Since only small-diameter φ5@600 distribution reinforcement is set in the Y direction, the mechanical properties are poor. When the base plate generates Y-direction tensile stress, cracks are very likely to appear in this direction, affecting the structural integrity.
[0006] In order to solve the potential defects of traditional prestressed laminated thin plates in the X and Y directions, the applicant proposed a new type of prestressed laminated thin plate structure. Utility Model Content
[0007] In view of the various deficiencies in the above-mentioned related technologies, the purpose of the present application is to provide a prestressed laminated thin plate to solve the problems existing in the existing related technologies such as the X-direction truss tube aggravating the arching of the laminated thin plate.
[0008] To achieve the above objectives and other related objectives, the present application discloses a prestressed laminated sheet, comprising:
[0009] The bottom plate is a thin plate structure cast in concrete, and a plurality of force-bearing bars arranged along the X direction and distribution bars arranged along the Y direction are arranged inside the bottom plate along the same plane; and
[0010] More than two truss bars are respectively arranged in the bottom plate along directions not parallel to the X direction, and the upper half of the truss bars protrude upward from the surface of the bottom plate.
[0011] In certain embodiments of the present application, the thickness of the base plate is 35 mm; the location of the force-bearing ribs and the distribution ribs is the center of the thickness of the base plate.
[0012] In certain embodiments of the present application, the diameter thickness of the stress-bearing ribs and the distribution ribs is 5 mm, and the thickness of the stress-bearing ribs from the top and bottom of the base plate is 15 mm.
[0013] In certain embodiments of the present application, the arrangement direction of the truss reinforcement includes: parallel arrangement along the Y direction.
[0014] In certain embodiments of the present application, the arrangement direction of the truss reinforcement includes: arrangement at an inclined angle along the X and Y directions.
[0015] In some embodiments of the present application, the inclined angle arrangement along the X and Y directions is that the truss tubes are butt-jointed end to end; and / or
[0016] The truss tubes arranged at an inclined angle along the X and Y directions are arranged in parallel.
[0017] Beneficial effects of the utility model:
[0018] 1. The truss tube in the X direction is eliminated, so that the whole component becomes a central tension component along the X direction, avoiding the upward arching deformation caused by the fixing effect of the truss tube.
[0019] 2. Adding truss reinforcement arranged in the Y direction makes up for the defect of the traditional structure that there is no force-bearing reinforcement in the Y direction and it is easy to crack.
[0020] 3. Change the traditional truss tube to truss reinforcement, that is, only keep the reinforcement part at the bottom of the truss tube, remove the heavy tube part at the top, and replace it with light reinforcement, thereby reducing the overall reinforcement consumption.
[0021] 4. Since the X direction is the long side of the base plate and the Y direction is the short side, the total length of the truss reinforcement arranged in the Y direction is shorter, which further reduces the amount of steel bars used and reduces costs.
[0022] Therefore, the novel structure of the present application not only solves the defects of the traditional structure, but also helps to reduce the dead weight, reduce material waste and reduce production costs by reducing the amount of steel bars used. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0024] Figure 1 It is a top view of the prestressed composite thin plate in specific embodiment 1.
[0025] Figure 2 for Figure 1 X-axis front view of the prestressed composite thin plate.
[0026] Figure 3 for Figure 2 Enlarged view of part A.
[0027] Figure 4 It is a top view of the prestressed composite thin plate in specific embodiment 2.
[0028] Figure 5 It is a top view of the prestressed composite thin plate in specific embodiment 2.
[0029] Figure 6 It is a top view of the prestressed composite thin plate in specific embodiment 3.
[0030] Figure 7 It is a top view of the prestressed composite thin plate in specific embodiment 3.
[0031] Figure 8 It is a top view of the prestressed composite thin plate in specific embodiment 3.
[0032] Fig. 9 It is a top view of the prestressed composite thin plate in the prior art.
[0033] Description of Figure Numbers:
[0034] 1- bottom plate, 2- force reinforcement, 3- distribution reinforcement, 4- truss reinforcement, 5- truss tube. DETAILED DESCRIPTION
[0035] 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.
[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "connection" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0038] Exemplary Embodiments
[0039] This exemplary embodiment discloses a prestressed laminated thin plate, comprising: a bottom plate 1 and two or more truss bars 4. The bottom plate 1 is a thin plate structure cast in concrete, and a plurality of force bars 2 arranged along the X direction and distribution bars 3 arranged along the Y direction are arranged inside the bottom plate 1 along the same plane. The two or more truss bars 4 are arranged in the bottom plate 1 along directions not parallel to the X direction, and the upper half of the truss bars 4 extend upward from the surface of the bottom plate 1.
[0040] In any embodiment provided in the present application, the thickness of the bottom plate 1 is 35 mm; the positions of the force-bearing ribs 2 and the distribution ribs 3 are the center of the thickness of the bottom plate 1 .
[0041] In any embodiment provided in the present application, the diameter thickness of the stress-bearing ribs 2 and the distribution ribs 3 is 5 mm, and the thickness of the stress-bearing ribs 2 from the top and the bottom of the base plate 1 is 15 mm.
[0042] In any embodiment provided in the present application, the arrangement direction of the truss ribs 4 includes: being arranged in parallel along the Y direction.
[0043] In any embodiment provided in the present application, the arrangement direction of the truss ribs 4 includes: arrangement along an inclined angle between the X and Y directions.
[0044] In any embodiment provided in the present application, the truss tubes 5 arranged at an inclined angle along the X and Y directions are butted end to end; and / or the truss tubes 5 arranged at an inclined angle along the X and Y directions are arranged in parallel.
[0045] Example 1
[0046] Figures 1 to 3 As shown, this embodiment discloses a prestressed laminated thin plate, comprising: a bottom plate 1 and two or more truss bars 4. The bottom plate 1 is a thin plate structure cast in concrete, and a plurality of force bars 2 arranged along the X direction and distribution bars 3 arranged along the Y direction are arranged inside the bottom plate 1 along the same plane. The two or more truss bars 4 are arranged in the bottom plate 1 along directions not parallel to the X direction, and the upper half of the truss bars 4 extend upward from the surface of the bottom plate 1.
[0047] Specific reference Figure 1 , the number of truss bars 4 is three, and the truss bars 4 are arranged in parallel along the Y direction. This method eliminates the truss tube 5 in the X direction, so that the whole component becomes a central tension component along the X direction, avoiding the upward arching deformation caused by the fixing effect of the truss tube 5, and increases the truss bars 4 arranged in the Y direction, making up for the defect of the traditional structure that there is no force bar 2 in the Y direction and it is easy to crack.
[0048] Read more Figure 2 and Figure 3 , the thickness of the bottom plate 1 is 35 mm; the position of the force reinforcement 2 and the distribution reinforcement 3 is the center of the thickness of the bottom plate 1. The diameter thickness of the force reinforcement 2 and the distribution reinforcement 3 is 5 mm, and the thickness of the force reinforcement 2 from the top and bottom of the bottom plate 1 is 15 mm, so that the whole component becomes a central tension component along the X direction. The lower half of the truss reinforcement 4 is arranged in the bottom plate 1, and the upper half extends upward from the surface of the bottom plate 1. Since the traditional truss tube 5 is changed to the truss reinforcement 4, that is, only the steel bar part at the bottom of the truss tube 5 is retained, and the heavy tube part at the top is removed and replaced by light steel bars, the overall steel bar usage is reduced. In addition, since the X direction is the long side of the bottom plate 1 and the Y direction is the short side, the total length of the truss reinforcement 4 arranged in the Y direction is shorter, which further reduces the steel bar usage and reduces the cost.
[0049] Therefore, the new structure of the present embodiment 1 not only solves the defects of the traditional structure, but also helps to reduce the dead weight, reduce material waste, and reduce production costs by reducing the amount of steel bars used.
[0050] Example 2
[0051] like Figure 4 and Figure 5As shown, this embodiment discloses a prestressed laminated thin plate, comprising: a bottom plate 1 and two or more truss bars 4. The bottom plate 1 is a thin plate structure cast in concrete, and a plurality of force bars 2 arranged along the X direction and distribution bars 3 arranged along the Y direction are arranged inside the bottom plate 1 along the same plane. The two or more truss bars 4 are arranged in the bottom plate 1 along directions not parallel to the X direction, and the upper half of the truss bars 4 extend upward from the surface of the bottom plate 1.
[0052] Specifically, the number of the truss bars 4 is three, and the truss bars 4 are all arranged along the inclined angle between the X and Y directions. Figure 4 and Figure 5 Two configurations of the truss bars 4, end-to-end butted and parallel, are shown respectively. This configuration eliminates the truss tube 5 in the X direction, turning the entire member into a central tension member in the X direction, thereby avoiding upward arching deformation due to the fixing effect of the truss tube 5, and increases the truss bars 4 arranged in the Y direction, thereby making up for the defect of the traditional structure that there is no force-bearing bar 2 in the Y direction and is prone to cracking.
[0053] The thickness of the bottom plate 1 is 35 mm; the position of the stress reinforcement 2 and the distribution reinforcement 3 is the center of the thickness of the bottom plate 1. The diameter thickness of the stress reinforcement 2 and the distribution reinforcement 3 is 5 mm, and the thickness of the stress reinforcement 2 from the top and bottom of the bottom plate 1 is 15 mm, making the whole component a central tension component along the X direction. Figure 2 and Figure 3 The contents are the same, so they will not be repeated in this implementation.
[0054] Example 3
[0055] like Figure 6 , Figure 7 and Figure 8 As shown, this embodiment discloses a prestressed laminated thin plate, comprising: a bottom plate 1 and two or more truss bars 4. The bottom plate 1 is a thin plate structure cast in concrete, and a plurality of force bars 2 arranged along the X direction and distribution bars 3 arranged along the Y direction are arranged inside the bottom plate 1 along the same plane. The two or more truss bars 4 are arranged in the bottom plate 1 along directions not parallel to the X direction, and the upper half of the truss bars 4 extend upward from the surface of the bottom plate 1.
[0056] Specifically, the number of the truss bars 4 is four or five, and the truss bars 4 are arranged along the inclined angle between the X and Y directions. Figures 6 to 8 The figures show that the truss bars 4 are arranged in a mixed manner using the first embodiment and the second embodiment. This method eliminates the truss tube 5 in the X direction, so that the overall member becomes a central tension member along the X direction, thereby avoiding the upward arching deformation caused by the fixing effect of the truss tube 5, and increases the truss bars 4 arranged in the Y direction, thereby making up for the defect of the traditional structure that there is no force-bearing bar 2 in the Y direction and it is easy to crack.
[0057] The thickness of the bottom plate 1 is 35 mm; the position of the stress reinforcement 2 and the distribution reinforcement 3 is the center of the thickness of the bottom plate 1. The diameter thickness of the stress reinforcement 2 and the distribution reinforcement 3 is 5 mm, and the thickness of the stress reinforcement 2 from the top and bottom of the bottom plate 1 is 15 mm, making the whole component a central tension component along the X direction. Figure 2 and Figure 3 The contents are the same, so they will not be repeated in this implementation.
[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, improvements, equivalent substitutions, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A prestressed laminated sheet, characterized in that: include: The bottom plate is a thin plate structure cast in concrete, and a plurality of force-bearing bars arranged along the X direction and distribution bars arranged along the Y direction are arranged inside the bottom plate along the same plane; and Two or more truss bars are respectively arranged in the bottom plate along directions not parallel to the X direction, and the upper half of the truss bars protrude upward from the surface of the bottom plate.
2. The prestressed laminated sheet according to claim 1, characterized in that: The thickness of the bottom plate is 35 mm; the position of the force-bearing reinforcement and the distribution reinforcement is the center of the thickness of the bottom plate.
3. The prestressed laminated sheet according to claim 2, characterized in that: The pipe diameter thickness of the stress-bearing reinforcement and the distribution reinforcement is 5 mm, and the thickness of the stress-bearing reinforcement from the top and bottom of the base plate is 15 mm.
4. The prestressed laminated sheet according to claim 1, characterized in that: The arrangement direction of the truss reinforcements includes: arranging in parallel along the Y direction.
5. The prestressed laminated sheet according to claim 1 or 4, characterized in that: The arrangement direction of the truss reinforcement includes: arranging along the inclined angles of the X and Y directions.
6. The prestressed laminated sheet according to claim 5, characterized in that: The inclined angle arrangement along the X and Y directions is that the truss tubes are butted end to end; and / or The truss tubes arranged at an inclined angle along the X and Y directions are arranged in parallel.