Floor support plate

Abstract

The invention provides a floor support plate. The floor support plate comprises a truss and a metal plate. The truss is provided with a strip-shaped upper chord and a wavy web member which are connected with each other. Partial area of the metal plate is bent for multiple times to form protruding stiffening ribs. The extending direction of the stiffening ribs is consistent with the extending direction of the truss. And the anti-bending structures at the bottom ends of the web members are fixedly connected with the stiffening ribs. According to the floor support plate, the metal plate is directly adopted as the bottom plate to be connected with the truss, the tensile property of the steel plate is fully utilized, and equivalently, the lower chord of the truss and the metal plate jointly bear tensile force. The truss and the metal plate are directly welded, and construction is convenient. The metal plate can also serve as a formwork, formwork removal is not needed in the later period, the construction steps can be simplified, and the construction efficiency is improved. Profiled stiffening ribs can be directly formed on the metal plate, so that the strength of the metal plate is improved. The extension direction of the stiffening ribs is consistent with the extension direction of the truss, so that transverse constraint and support can be increased, the overall rigidity of the floor support plate structure is improved, and the bearing capacity of the structure is improved.

Description

Technical Field

[0001] The present application relates to the field of building technology, and in particular, to a floor decking plate. Background Art

[0002] With the acceleration of urbanization, various types of buildings are increasing. Among them, trusses are widely used and form floor decks with the bottom plate set at the bottom. The truss is composed of an upper chord and a web connected below the upper chord. It usually has a plane or spatial structure of triangular units, which mainly bears axial tension or pressure and can make full use of the strength of the material. Since the two webs of the traditional truss meet at one point, when the floor thickness is the same, the truss height is determined, and the reasonable maximum width of the lower part of the truss is also determined.

[0003] The current related technology directly sets a metal bottom plate to connect with the above-mentioned trusses to form a floor deck. Since the maximum width of the lower part of the truss is fixed, that is, the width of the metal plate affected by each truss is limited, the number of trusses set on the metal plate is very large, that is, the truss density is high. In addition, the lower part of the truss web is transversely bent into a flat section and then connected to the bottom plate. The elasticity of the bend will make the rigidity of the overall structure worse. The bottom plate can only be used as a template and cannot bear the lower tension of the structure. This technical solution has low bearing capacity, complex manufacturing, low material utilization, and high cost. Summary of the invention

[0004] Aiming at the shortcomings of the existing methods, the present application proposes a floor decking plate to solve the problems of low bearing capacity, complex manufacturing, low material utilization rate and high cost existing in the current technology.

[0005] In a first aspect, an embodiment of the present application provides a floor deck, comprising: A truss with connected strip-like top chords and wavy webs; The metal plate is bent multiple times in some areas to form raised stiffening ribs; the extension direction of the stiffening ribs is consistent with the extension direction of the truss; The reverse bending structures at the bottom ends of the web members are fixedly connected to the stiffening ribs.

[0006] In some possible embodiments, the stiffening rib includes at least two bends, and a sub-portion formed between adjacent bends; The sub-portion is arc-shaped and / or straight.

[0007] In some possible embodiments, the bending directions of adjacent bends are opposite, and all sub-portions are straight and their planes are coincident or parallel.

[0008] In some possible embodiments, the floor decking includes at least one of the following: The transverse section of the metal plate at the stiffening rib forms an H-shape flipped 90 degrees, and the transverse direction is consistent with the width direction of the stiffening rib; The transverse section of the metal plate at the stiffening rib forms a V-shape.

[0009] In some possible embodiments, the floor decking comprises at least one of the following: The edge portions of adjacent metal plates are at least partially overlapped to form an overlapped portion; The edge portions of adjacent metal plates are at least partially overlapped, and at least one edge portion is bent or curled at least once to form an overlapped portion.

[0010] In some possible embodiments, the floor decking plate further includes at least one of the following: The overlapping part is in the shape of a barb; The overlapping part is in a curled shape; In the overlapped portion, the edge of one metal plate covers the edge of the other metal plate.

[0011] In some possible embodiments, the floor decking comprises at least one of the following: The upper chord includes a main body formed of concrete; the overall length direction of the web is consistent with the longitudinal direction, and the top end is fixed in the upper chord; the longitudinal direction is consistent with the extension direction of the upper chord; the two webs are arranged along the transverse spacing and symmetrically arranged, and the planes where they are located intersect, and the intersection line is located above the upper chord; The truss further includes: a first lower chord connected to the outer side of the recurved structure at the bottom end of the web member and connected to the stiffening rib; The truss further includes: a second lower chord having an outer side connection at a designed distance to the anti-bending structure at the bottom end of the web member; The truss further includes: a second lower chord having a distance from the top surface of the metal plate not shorter than 15 mm and not longer than 20 mm; The reverse bending structures at the bottom ends of the first lower chord and the web member are welded to the top surface of the metal plate.

[0012] In some possible embodiments, the floor decking comprises at least one of the following: The anti-bend structure at the bottom end of the web is arc-shaped, and the welding point is formed at the lowest point of the anti-bend structure; The anti-bend structure at the bottom end of the web is straight and is welded to the stiffening rib, and the welding point is formed at the bending part of the anti-bend structure.

[0013] In some possible embodiments, the reverse bending structure at the bottom end of the web member is bent outward to form a foot, which is welded to the stiffening rib, and a welding point is formed on the foot.

[0014] In some possible embodiments, the end segments at both ends of the web member are located in a plane perpendicular to the strip-shaped upper chord; The bottom of the end section is bent inwardly or laterally along an extension direction parallel to the strip-shaped upper chord to form a shear-resistant portion, which is welded to the stiffening rib.

[0015] In some possible embodiments, a plurality of trusses are arranged at intervals along the width direction of the metal plate; The arrangement direction of the stiffeners is consistent with that of the trusses; Each truss includes at least two web members, which are respectively connected to at least two stiffening ribs of the metal plate.

[0016] In some possible embodiments, the floor decking comprises at least one of the following: A decorative plate, arranged at the bottom of the metal plate, and detachably connected or bonded to the metal plate; A sound insulation structure is provided between the metal plate and the decorative plate; Along the extension direction of the metal plate, there is a distance between the edge of the metal plate and the edge of the decorative plate; The edges of adjacent metal plates are connected, and there is a gap between the decorative plates on the bottom surfaces of adjacent metal plates, and the gap is filled with a caulking material.

[0017] In some possible embodiments, a cross-section of the body portion along the transverse direction includes a rectangle, a trapezoid, an oblong, or an irregular polygon.

[0018] In some possible embodiments, the upper chord further includes: a metal component covering at least a portion of the outer surface of the main body; The bottom of the metal component is open, and the top end of the web is inserted into the main body through the opening of the metal component.

[0019] In some possible embodiments, the cross-section of the metal component is C-shaped.

[0020] In some possible embodiments, the edge of the bottom opening of the metal component has a bent portion bent toward the inside of the metal component; The bending portion is embedded in the main body.

[0021] In some possible embodiments, a plurality of groups of sequentially connected convex portions and concave portions are formed at the edge of the bending portion.

[0022] In some possible embodiments, the floor decking includes at least one of the following: at least one first steel bar disposed longitudinally in the body portion and between top ends of different web members; At least one second steel bar is disposed longitudinally in the body portion and is located outside the top end of at least one web member; At least one third steel bar is disposed in the body portion along a transverse direction and is connected to at least one of the web member and the first steel bar.

[0023] In some possible embodiments, the floor decking includes at least one of the following: The third reinforcement is connected to the corresponding top ends of the two web members; The first reinforcement is located between the two web members and below the third reinforcement; The second reinforcement is located outside the two web members and below the third reinforcement.

[0024] In some possible embodiments, the angle between the web bar and the plane where the bottom ends of the two web bars are located is between 60 degrees and 89 degrees.

[0025] The beneficial technical effects brought about by the technical solution provided by the embodiment of the present application include: In the embodiment of the present application, a metal plate is directly used as the bottom plate to connect with the truss, making full use of the tensile properties of the steel plate, which is equivalent to the lower chord of the truss and the metal plate bearing the tensile force together. The truss and the metal plate can be directly welded, which is convenient for construction. The metal plate can also serve as a template at the same time, and there is no need to remove the template in the later stage, which can simplify the construction steps and improve the construction efficiency.

[0026] Moreover, corrugated stiffening ribs can be directly formed on the metal plate, and the metal plate structure becomes thicker at the stiffening ribs, which can improve the local width-to-thickness ratio of the metal plate, thereby improving the local stability of the metal plate, helping to reduce the deflection of the structure and improve the strength of the metal plate.

[0027] In addition, the extension direction of the stiffening ribs is consistent with the extension direction of the trusses, that is, the stiffening ribs extend along the length direction of the trusses, which can increase lateral constraints and supports, thereby improving the overall stiffness of the floor deck structure and improving the bearing capacity of the structure.

[0028] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 A schematic diagram of the main structure of the first floor deck provided in an embodiment of the present application; Figure 2 A schematic diagram of the side structure of the first floor deck provided in an embodiment of the present application; Figure 3 A schematic diagram of the main structure of the second floor deck provided in an embodiment of the present application; Figure 4a for Figure 1 A partial enlarged view of the middle A; Figure 4b A partial enlarged view of a stiffening rib provided in an embodiment of the present application; Figure 5aA schematic diagram of the main structure of the third type of floor deck provided in the embodiment of the present application; Figure 5b-5f A schematic diagram of the structure of the connection between adjacent metal plates in various floor decking plates provided in the embodiments of the present application; Figure 5g A schematic diagram of the three-dimensional structure of a fourth type of floor deck provided in an embodiment of the present application; Figure 5h A schematic diagram of the three-dimensional structure of a fifth floor deck provided in an embodiment of the present application; Figure 5i A schematic diagram of the main structure of the sixth type of floor deck provided in an embodiment of the present application; Figure 5j A schematic diagram of the three-dimensional structure of a sixth type of floor deck provided in an embodiment of the present application; Figure 5k A schematic diagram of the main structure of the seventh floor deck provided in the embodiment of the present application; Figure 6a , Figure 7-Figure 16 , Figure 19-Figure 25 A schematic diagram of the main structure of various trusses provided in the embodiments of the present application; Figure 6b and Figure 6c A schematic diagram for comparing a truss provided in an embodiment of the present application with a related art; Fig.17 and Fig.18 This is an enlarged view of the structure at the bending portion of the upper chord of the truss provided in an embodiment of the present application.

[0030] Reference numerals: 100-truss; 110-winding part; 111-body part; 112-metal component; 113-bent part; 1131-convex part; 1132-concave part; 120- web member; 121- top end of web member 120; 122- bottom end of web member 120; 123- anti-bending structure; 124- foot; 125- shearing part; 130-first lower chord; 140-second lower chord; 150-first steel bar; 151-second steel bar; 160-third steel bar; 200-metal plate; 210-stiffening rib; 211-sub-portion; 221-first edge portion; 222-second edge portion; 300-connecting parts; 400-decorative panels; 500-sound insulation structures; 600-overlapping parts. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0032] Those skilled in the art will appreciate that, unless expressly stated, the "said" and "the" used herein may also include plural forms. It should be further understood that the term "including" used in the specification of the present application refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the implementation of other features, information, data, steps, operations, elements, components and / or combinations thereof supported by the technical field. The term "and / or" used herein refers to at least one of the items defined by the term, for example, "A and / or B" may be implemented as "A", or as "B", or as "A and B".

[0033] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0034] The research and development ideas of this application include: In the related technology, it is necessary to set up a template under the truss to form a floor deck and then remove the template, which makes the construction more complicated and the efficiency is low.

[0035] In the related art, a metal base plate is directly connected to the truss, but the strength is insufficient and the reliability is poor.

[0036] The floor decking provided in this application is intended to solve the above technical problems of related technologies.

[0037] The following is a detailed description of the technical solution of the present application and how the technical solution of the present application solves the above technical problems with specific embodiments. It should be noted that the following implementations can refer to, draw on or combine with each other, and the same terms, similar features and similar implementation steps in different implementations will not be described repeatedly.

[0038] Please refer to Figure 1-Figure 3 An embodiment of the present application provides a floor deck, including: a truss 100 and a metal plate 200.

[0039] The truss 100 has a strip-shaped upper chord 110 and a wave-shaped web member 120 connected to each other.

[0040] Part of the metal plate 200 is bent multiple times to form a protruding stiffening rib 210. The extending direction of the stiffening rib 210 is consistent with the extending direction of the truss 100.

[0041] The inverted structures 123 of the bottom ends 122 of the web members 120 are fixedly connected to the stiffening ribs 210 .

[0042] In the embodiment of the present application, the metal plate 200 is directly used as the bottom plate to connect with the truss 100, making full use of the tensile properties of the steel plate, which is equivalent to the lower chord of the truss 100 and the metal plate jointly bearing the tensile force. The truss 100 and the metal plate 200 can be directly welded, which is convenient for construction. The metal plate 200 can also serve as a template at the same time, and there is no need to remove the template later, which can simplify the construction steps and improve the construction efficiency.

[0043] Moreover, corrugated stiffening ribs 210 can be directly formed on the metal plate 200. The structure of the metal plate 200 becomes thicker at the stiffening ribs 210, which can improve the local width-to-thickness ratio of the metal plate 200, thereby improving the local stability of the metal plate 200, helping to reduce the deflection of the structure and improve the strength of the metal plate 200.

[0044] In addition, the extension direction of the stiffening rib 210 is consistent with the extension direction of the truss 100, that is, the stiffening rib 210 extends along the length direction of the truss 100, which can increase lateral constraints and support, thereby improving the overall stiffness of the floor deck structure and improving the bearing capacity and seismic performance of the structure.

[0045] In some possible embodiments, Figure 1 , Figure 4a As shown in FIG. 5 , the stiffening rib 210 includes at least two bends and a sub-portion 211 formed between adjacent bends.

[0046] The sub-portion 211 is arc-shaped and / or straight.

[0047] In this embodiment, the stiffening rib 210 is a protruding structure formed by bending a local portion of the metal plate 200. After the local portion of the metal plate 200 is bent, the protruding structure protrudes from the top surface of the metal plate 200, which can increase the width-to-thickness ratio of the metal plate 200 at the stiffening rib 210, thereby improving the strength of the metal plate 200, and can enhance the strength of the connection between the metal plate 200 and the truss 100, thereby enhancing the overall strength of the floor deck.

[0048] In some possible embodiments, Figure 4a As shown, the bending directions of adjacent bends are opposite, and all sub-portions 211 are straight and their planes are overlapped or parallel.

[0049] In this embodiment, the local positions of the metal plate 200 are folded multiple times, and the formed sub-portions 211 are all straight, forming a stacked structure at the stiffening ribs 210, which can significantly increase the thickness of the metal plate 200 at the stiffening ribs 210, thereby increasing the strength of the metal plate 200.

[0050] In some possible embodiments, Figure 4a As shown, the transverse cross-section of the metal plate 200 at the stiffening rib 210 forms an H-shape flipped 90 degrees, and the transverse direction is consistent with the width direction of the stiffening rib 210.

[0051] In this embodiment, local positions of the metal plate 200 are folded multiple times, and the formed sub-portions 211 are all straight, and a three-layer stacked structure is formed at the stiffening rib 210, which is similar to a flat H-shape, and can significantly increase the thickness of the metal plate 200 at the stiffening rib 210, thereby increasing the strength of the metal plate 200.

[0052] In some possible embodiments, Figure 4b As shown, the transverse cross section of the metal plate 200 at the stiffening rib 210 forms a V-shape.

[0053] In this embodiment, it is equivalent to Figure 4a The two ends of the raised stiffening ribs 210 are bent toward each other to form a V-shape, and the bottom ends 122 of the web members 120 are disposed on the V-shaped stiffening ribs 210 in a one-to-one correspondence.

[0054] In some possible embodiments, edge portions of adjacent metal plates 200 are at least partially overlapped to form an overlapped portion 600 .

[0055] In this embodiment, the edges of multiple metal plates 200 are connected to form a base plate with a larger area. Figure 1 , Figure 3 and Figure 5a As shown, the two edge portions of the metal plate 200 are respectively a first edge portion 221 and a second edge portion 222. Figure 5b The second edge portion 222 of one metal plate 200 overlaps with the first edge portion 221 of an adjacent metal plate 200 to form an overlapping portion 600 , so that a plurality of metal plates 200 are connected.

[0056] In some possible embodiments, edge portions of adjacent metal plates 200 at least partially overlap, and at least one edge portion is bent or curled at least once to form an overlapping portion 600 .

[0057] In this embodiment, the edges of adjacent metal plates 200 are at least partially overlapped and are bent or curved at least once as a whole after being overlapped to form an overlapped portion 600, thereby making the connection between adjacent metal plates 200 stable and improving the bearing capacity of the floor deck. In some possible embodiments, the overlapped portion 600 is in the shape of a barb.

[0058] like Figure 5a As shown, the edge of the metal plate 200 has a barb structure. At the connection between adjacent metal plates 200, the barb structures on the edges of adjacent metal plates 200 overlap with each other, and the formed overlapping portion 600 is also barb-shaped, which plays a limiting role, so that the connection between adjacent metal plates 200 is firm and not easy to shift.

[0059] In some possible embodiments, the overlapping portion 600 is in a curled shape.

[0060] like Figure 5c and Figure 5d As shown, among the adjacent metal plates 200, the second edge portion 222 of one metal plate 200 is completely overlapped with the first edge portion 221 of the adjacent metal plate 200 and is bent or curved as a whole at least once after overlapping to form a circular shape, so that the connection between the adjacent metal plates 200 is firm and not easy to shift.

[0061] In some possible embodiments, the edge of one metal plate in the overlapping portion 600 covers the edge of another metal plate.

[0062] like Figure 5e and Figure 5f As shown, among the adjacent metal plates 200, the second edge portion 222 of the left metal plate 200 is partially overlapped with the first edge portion 221 of the right metal plate 200 and then bent, and then the first edge portion 221 of the right metal plate 200 is bent again toward the second edge portion 222 of the left metal plate 200, so that the first edge portion 221 of the right metal plate 200 covers the second edge portion 222 of the left metal plate 200, so that the adjacent metal plates 200 restrict each other and are not easily displaced.

[0063] In this embodiment, a local position of the metal plate 200 is bent to form a double-layer metal plate 200 with a certain width, and the double-layer metal plate 200 is curled in a circle to form a stiffening rib 210. The cross section of the formed stiffening rib 210 is spiral. The stiffening rib 210 in the embodiment of the present application has more layers in the vertical direction, that is, the number of layers of the metal plate 200 at the stiffening rib 210 is more, and the overall thickness is thicker, which can enhance the strength of the connection between the metal plate 200 and the truss 100 and enhance the overall strength of the floor deck.

[0064] The research and development ideas of this application include: in the related art, the top ends of the two webs are connected to form a vertex, and are connected to the upper chord to form a truss with a triangular unit space structure. The plane where the bottom ends of the two webs are located is called the bottom surface of the truss (in Figure 6a , Figure 6b or Figure 6c The straight line extending along the second direction at the bottom represents the bottom surface). The upper chord may be a steel upper chord, a concrete upper chord or a steel-concrete combination upper chord.

[0065] The bearing capacity of the truss is related to parameters such as the height of the truss, the angle between the web and the bottom surface, and the spacing of the bottom ends of the web along the second direction (hereinafter referred to as the bottom width of the truss).

[0066] The higher the truss is, the higher its load-bearing capacity is. Figure 6bAs shown, the truss formed by the web member B is higher than the truss formed by the web member A. However, in actual engineering applications, the floor thickness is determined, and the truss height is also determined, so it is difficult to increase the bearing capacity of the truss by increasing the truss height.

[0067] Furthermore, the wider the bottom width of the truss is, the larger the force transmission area between the truss and the bottom plate structure is, and the better the bearing capacity and safety are. Figure 6b and Figure 6c As shown, the bottom width of the truss formed by the web member A is greater than the bottom width of the truss formed by the web member C. Therefore, it is possible to consider changing the load-bearing capacity of the truss by increasing the bottom width of the truss.

[0068] However, the larger the angle between the web and the bottom surface, the closer the web is to a vertical state, and the better the force transmission effect.

[0069] Therefore, if the load-bearing capacity of the truss is changed by increasing the bottom width of the truss while keeping the height of the truss fixed, the angle between the web and the bottom surface will inevitably decrease. Figure 6b The truss formed by the web member A in Figure 6c Compared with the truss formed by the web member C in the truss, the angle β formed by the web member A and the bottom surface is smaller than the angle α formed by the web member C and the bottom surface. This reduces the overall stability of the truss, making the truss more likely to deform or collapse when subjected to external forces, resulting in poor bearing capacity and safety of the truss.

[0070] Therefore, in some possible embodiments, Figure 1 , Figure 2 as well as Figure 6a As shown, the upper chord 110 includes a main body 111 formed of concrete. The overall length direction of the web member 120 is consistent with the longitudinal direction, and the top end is fixed in the upper chord 110. The longitudinal direction is consistent with the extension direction of the upper chord 110. The two web members 120 are arranged along the transverse spacing and symmetrically arranged, and the planes where they are located intersect, and the intersection line is located above the upper chord 110.

[0071] In this embodiment, the two webs 120 are arranged along the transverse spacing and symmetrically disposed, both facing the center line (such as Figure 6a The vertical dotted line in the middle) is inclined, that is, the top ends 121 of the two web members 120 correspond one to one. The web member 120 is a planar wavy structure formed by bending a rod-shaped object back and forth. The planes where the two web members 120 are located intersect, and the intersection line formed is located above the upper chord 110. Compared with the technical solutions in the related art in which the planes where the two web members 120 are located are parallel or the top ends 121 of the web members 120 are connected, the embodiment of the present application can increase the spacing between the bottom ends 122 of the web members 120, and in the plate member formed by the bottom of the truss 100 and the plate structure, increase the force transmission area between the bottom of the truss 100 and the plate structure, thereby improving the bearing capacity and stability of the plate member.

[0072] Moreover, compared with the technical solution of increasing the angle between the top ends 121 of the connected web bars 120 in the related art (such as Figure 6b The technical solution of increasing the angle between the web members A in the embodiment of the present application can ensure that the angle between the web member 120 and the center line is within a reasonable range, and can also increase the angle between the web member 120 and the bottom surface, which can effectively reduce the risk of deformation or collapse of the truss 100, thereby improving the bearing capacity and stability of the plate member.

[0073] In the embodiment of the present application, the upper chord 110 includes a main body 111 formed of concrete, and forms a steel-concrete hybrid truss 100 with the web members 120 and the lower chord reinforcement.

[0074] Optionally, the upper chord 110 of the truss 100 may be formed of steel bars, and together with the web members 120 and the second lower chord 140 , form a steel bar truss 100 .

[0075] In some possible embodiments, Figure 7 As shown, the truss 100 further includes: a first lower chord 130 connected to the outer side of the recurved structure 123 of the bottom end 122 of the web member 120 and connected to the stiffening rib 210 .

[0076] In some possible embodiments, the truss 100 further includes: a second lower chord 140 connected to the outer side of the recurved structure 123 of the bottom end 122 of the web member 120 at a designed distance.

[0077] In this embodiment, the lower chord of the truss 100 is formed by steel bars (a first lower chord bar 130 and a second lower chord bar 140). The first lower chord bar 130 and the second lower chord bar 140 can be arranged parallel to each other and spaced apart on the outside of the web member 120, so that the truss 100 forms a spatial structure.

[0078] In some possible embodiments, the truss 100 further includes: a second lower chord 140 , the distance between which and the top surface of the metal plate 200 is not shorter than 15 mm and not longer than 20 mm.

[0079] In some possible embodiments, the first lower chord 130 and the reverse bending structure 123 of the bottom end 122 of the web member 120 are welded to the top surface of the metal plate 200 .

[0080] In this embodiment, the first lower chord 130 is connected to the outer side of the reverse bending structure 123 of the bottom end 122 of the web member 120. At the same time, the first lower chord 130 and the reverse bending structure 123 of the bottom end 122 of the web member 120 are welded to the top surface of the metal plate 200, making the overall structure more stable.

[0081] Optionally, the first lower chord 130 and the second lower chord 140 may include at least one of prestressed steel bars, prestressed steel strands or prestressed steel wires, which can enhance the crack resistance and bearing capacity of the truss 100 and reduce deflection.

[0082] In some possible embodiments, Figure 2 As shown, the inverted structure 123 of the bottom end 122 of the web 120 is arc-shaped, and the welding point is formed at the lowest point of the inverted structure 123 .

[0083] In this embodiment, the bottom end 122 of the web member 120 is formed into an arc shape, and the lowest point of the arc is welded to the stiffening rib 210 of the metal plate 200 , and the welding point only needs to be formed at the lowest point of the anti-bend structure 123 .

[0084] In some possible embodiments, the reverse bending structure 123 of the bottom end 122 of the web member 120 is straight and is welded to the stiffening rib 210 , and the welding point is formed at the bending part of the reverse bending structure 123 .

[0085] In this embodiment, if Figure 8 As shown, the reverse bending structure 123 is straight, and welding is performed by forming welding points at both ends (i.e., the bending parts) of the straight reverse bending structure 123, which is convenient for construction.

[0086] In some possible embodiments, the reverse bending structure 123 of the bottom end 122 of the web member 120 is bent outward to form a foot 124 , which is welded to the stiffening rib 210 , and a welding point is formed on the foot 124 .

[0087] In this embodiment, if Figure 5g As shown, the anti-bend structure 123 extends outward at the first bend, bends inward again and extends after extending a certain length, bends upward again after a certain length to form the middle part of the web 120, and returns to the plane where the web 120 is located.

[0088] That is, unlike the solution in which the web member 120 is entirely in one plane in the previous embodiment, the reverse bending structure 123 of the bottom end 122 of the web member 120 in this embodiment extends outward by a certain length, almost parallel to the metal plate 200. Except for the reverse bending structure 123 of the bottom end 122 of the web member 120, the other parts are also in the same plane.

[0089] In this embodiment, the stiffening rib 210 is welded to the reverse bending structure 123 of the bottom end 122 of the web member 120, which can increase the position of the welding point and improve the overall stability of the floor deck.

[0090] It can be understood that in the embodiment of the present application, the truss 100 as a whole is used as a reference, outward refers to the left and right sides of the truss 100, and inward refers to the side toward the inside of the truss 100.

[0091] In some possible embodiments, the end sections at both ends of the web member 120 are located in a plane perpendicular to the strip-shaped upper chord 110; The bottom of the end section is bent inward or sideways in a direction parallel to the extension direction of the strip-shaped upper chord 110 to form a shear-resistant portion 125, which is welded to the stiffening rib.

[0092] like Figure 5h As shown, the bottom of the end section has no anti-bend structure 123, which is just the end of the web member 120. The end section of the web member 120 is bent inwardly along the extension direction parallel to the strip upper chord 110 to form a shear-resistant portion 125. It can also be understood that the web member 120 is bent back at the end along the extension direction parallel to the strip upper chord 110, which is equivalent to closing the web member 120 inwardly, playing a certain anti-shear role.

[0093] Another example Figure 5g As shown, the bottom of the end section is just the edge of the reverse bending structure 123, and the bottom of the end section is bent laterally along the extension direction parallel to the strip upper chord 110 to form a shear-resistant portion 125. It can also be understood that the web member 120 is bent toward the outside of the truss at the end to form the shear-resistant portion 125, which plays a certain shear-resistant role. The lateral direction is a direction perpendicular to the strip upper chord 110 and parallel to the metal plate 200.

[0094] In some possible embodiments, Figure 3 As shown, a plurality of trusses 100 are arranged at intervals along the width direction of the metal plate 200 .

[0095] The arrangement direction of the stiffening ribs 210 is consistent with the arrangement direction of the trusses 100 .

[0096] Each truss 100 includes at least two web members 120 , which are respectively connected to at least two stiffening ribs 210 of the metal plate 200 .

[0097] In this embodiment, the bottom ends 122 of the web members 120 of each truss 100 are connected to the stiffening ribs 210 in a one-to-one correspondence, thereby improving the connection stability between the truss 100 and the metal plate 200 and improving the strength of the floor deck.

[0098] In some possible embodiments, Figure 5i and Figure 5j As shown, the decorative plate 400 is disposed at the bottom of the metal plate 200 and is detachably connected or bonded to the metal plate 200 .

[0099] In this embodiment, the decorative plate 400 can be connected to the bottom of the metal plate 200 through the connecting piece 300. After the floor deck is installed in the building, the decorative plate 400 can play a role of being neat and beautiful. Moreover, the decorative plate 400 can be detachably connected or bonded to the metal plate 200, and the decorative plate 400 can also be replaced as needed.

[0100] Optionally, the decorative plate 400 may be detachably connected to the metal plate 200 by means of connecting members such as screws.

[0101] Optionally, the decorative plate 400 may be bonded to the bottom surface of the metal plate 200 by adhesive such as glue.

[0102] Optionally, the decorative board 400 may include a decorative surface layer such as thin mortar, gypsum board, fiber cement board, etc.

[0103] In some possible embodiments, Figure 5k As shown, the sound insulation structure 500 is disposed between the metal plate 200 and the decorative plate 400 .

[0104] In this embodiment, sound insulation material may be filled between the metal plate 200 and the decorative plate 400 to form a sound insulation structure 500 to ensure good sound insulation between floors.

[0105] Optionally, the sound insulation structure 500 may be made of sound insulation materials such as rock wool, glass wool, etc.

[0106] In some possible embodiments, along the extension direction of the metal plate 200 , there is a gap between the edge of the metal plate 200 and the edge of the decorative plate 400 .

[0107] The edges of adjacent metal plates 200 are connected, and there is a gap between the decorative plates 400 on the bottom surfaces of adjacent metal plates 200, and the gap is filled with a caulking material.

[0108] In this embodiment, if Figure 5i As shown, the area of ​​the decorative panel 400 is slightly smaller than the metal panel 200. When multiple metal panels 200 are spliced ​​together, there are gaps between the decorative panels 400 on the bottom surfaces of adjacent metal panels 200. By filling the gaps with caulking material, the multiple decorative panels 400 are connected together.

[0109] Optionally, the cross-section of the main body 111 along the transverse direction includes a rectangle, a trapezoid, an oblong or an irregular polygon.

[0110] In this embodiment, the cross-section of the main body 111 of the upper chord 110 in the transverse direction can be designed in various shapes as required, such as Figure 7 The rectangle shown, Fig. 9 The trapezoid shown, Fig.10 The oblong shape shown and Fig.11 and Fig.12 For ease of understanding, this application only describes the different structures between various embodiments, and the structures of other parts not covered are the same or similar and will not be repeated here.

[0111] In some possible embodiments, Figure 13a-Figure 16As shown, the upper chord 110 further includes: a metal component 112 covering at least a portion of the outer surface of the main body 111 .

[0112] The bottom of the metal component 112 is open, and the top end 121 of the web 120 is inserted into the main body 111 through the opening of the metal component 112 .

[0113] In this embodiment, the main body 111 formed by the metal component 112 and the concrete can form an open-type steel tube upper chord 110 rod, or a steel-concrete combined compression rod, which can improve the strength of the upper chord 110 and further improve the bearing capacity and tensile resistance of the upper chord 110.

[0114] Optionally, the metal member 112 comprises an open-ended steel tube.

[0115] In some possible embodiments, Fig.14a or Fig.14b As shown, the cross section of the metal component 112 is C-shaped.

[0116] Optionally, the metal member 112 includes a channel steel or a C-shaped steel.

[0117] In some possible embodiments, Fig.13a , Fig.13b or Fig.16 As shown, the edge of the bottom opening of the metal component 112 has a bent portion 113 bent toward the inside of the metal component 112 .

[0118] The bent portion 113 is embedded in the main body 111 .

[0119] In this embodiment, the edge of the opening of the metal component 112 is bent toward the inside of the main body 111 to form a bent portion 113 and embedded in the main body 111, which can enhance the bonding ability between the metal component 112 and the main body 111, thereby ensuring the good reliability of the upper chord 110 itself.

[0120] In some possible embodiments, Figure 17-Figure 18 As shown, a plurality of groups of sequentially connected convex portions 1151 and concave portions 1132 are formed at the edge of the bending portion 113 .

[0121] In this embodiment, the edge has an uneven structure, and the concrete forming the main body 111 also forms a complementary uneven structure at the edge of the bending portion 113, which can enhance the gripping force between the bending portion 113 and the main body 111, thereby ensuring the good reliability of the upper chord 110 itself.

[0122] Alternatively, if Fig.18 As shown, the edge of the bent portion 113 is serrated.

[0123] In some possible embodiments, the truss 100 further includes: at least one first steel bar 150 .

[0124] like Fig. 20 As shown, at least one first steel bar 150 is longitudinally disposed in the main body 111 and located between the top ends 121 of different web members 120 .

[0125] In some possible embodiments, Fig.24 As shown, the truss 100 further includes: at least one second reinforcement bar 151. The at least one second reinforcement bar 151 is located outside the top end of the at least one web member 120.

[0126] In the embodiment of the present application, the position of the steel bars in the main body 111 can be flexibly set according to design requirements, and can be located outside the web member 120 or inside the web member 120 to act as negative moment steel bars. In addition, the steel bars can be connected to the web member 120 to enhance the relative stability between the first steel bar 150 and the web member 120, and between the second steel bar 151 and the web member 120, thereby improving the strength of the upper chord 110.

[0127] It can be understood that the outer side of the web member 120 described in the embodiment of the present application refers to the direction toward the left and right sides of the truss 100, and the inner side of the web member 120 refers to the direction toward the inside of the truss 100.

[0128] Optionally, the web member 120 is a planar wavy structure formed by bending a rod-shaped object back and forth, and the continuous bending process of the web member 120 can be formed by using the automatic production line of the steel bar truss 100. The top end 121 of the web member 120 and the bottom end 122 of the web member 120 both include a reverse bending structure, and the reverse bending structure can be arc-shaped or straight. In the same web member 120, the reverse bending structure can include both arc-shaped and straight shapes, which depends on the actual situation.

[0129] Moreover, there can be multiple first steel bars 150 , all of which are symmetrically arranged about the center line, which is beneficial to ensuring the structural stability of the truss 100 .

[0130] In some possible embodiments, Figure 21-25 As shown, the truss 100 further includes at least one third reinforcement bar 160 .

[0131] At least one third reinforcement bar 160 is disposed in the body portion 111 along a transverse direction and is connected to at least one of the web member 120 and the first reinforcement bar 150 .

[0132] In this embodiment, the third steel bar 160 may be connected to the web member 120 , may be connected to the first steel bar 150 , or may be connected to both the web member 120 and the first steel bar 150 , thereby improving the strength of the upper chord 110 .

[0133] The embodiments provided by the present application are described below in conjunction with the accompanying drawings. For ease of understanding, the present application only describes the different structures between various embodiments, and the structures of other parts not covered are the same or similar and will not be repeated here.

[0134] In some possible embodiments, Fig.21 As shown, the third steel bar 160 is connected to the top ends 121 of the two web members 120 in a one-to-one correspondence.

[0135] In some possible embodiments, Fig. 22 As shown, a first steel bar 150 is disposed in the upper chord 110 , the first steel bar 150 is located between the top ends 121 of the two web members 120 , and is disposed below the third steel bar 160 and welded to the third steel bar 160 .

[0136] In some possible embodiments, Fig.23 As shown, two first steel bars 150 are arranged in the upper chord 110 , and the two first steel bars 150 are arranged between the top ends 121 of the two web members 120 , and are arranged below the third steel bars 160 , and are welded to the third steel bars 160 .

[0137] In some possible embodiments, Fig.24 As shown, two second steel bars 151 are arranged in the upper chord 110 , and the two second steel bars 151 are arranged outside the top ends 121 of the two web members 120 , and are arranged below the third steel bars 160 , and are welded to the third steel bars 160 and the top ends 121 of the web members 120 .

[0138] In some possible embodiments, Fig.25 As shown, in the upper chord 110, two second steel bars 151 are arranged outside the top ends 121 of the two web members 120, and are arranged below the third steel bars 160, and are welded to the third steel bars 160 and the top ends 121 of the web members 120. One first steel bar 150 is arranged between the top ends 121 of the two web members 120, and is arranged above the third steel bar 160, and is welded to the third steel bar 160 and the top ends 121 of the web members 120.

[0139] Moreover, there can be multiple third steel bars 160 , all of which are symmetrically arranged about the center line, which is beneficial to ensuring the structural stability of the truss 100 .

[0140] Furthermore, the third steel bar 160 is connected to the top ends 121 of the two web members 120 at the same time, and the two web members 120 are connected as one, which can also facilitate positioning and further facilitate the manufacture of the truss 100.

[0141] In addition, the web 120, the second steel bar 151 and the third steel bar 160 can be connected to each other to form a woven structure, making the overall structure more stable and the force more reasonable. During hoisting, the reverse bending structure of the top 121 of the web 120 can be used as a hoisting point, which is convenient for transportation and disassembly.

[0142] The specific structures of various floor decking plates 100 are introduced below with reference to the accompanying drawings.

[0143] Alternatively, if Figure 1 and Figure 2 As shown, the floor decking plate includes: a truss 100 and a metal plate 200. The truss 100 has a strip-shaped upper chord 110 and a wavy web member 120 connected to each other. Part of the metal plate 200 is bent multiple times to form a protruding stiffening rib 210. The extension direction of the stiffening rib 210 is consistent with the extension direction of the truss 100. The bottom end 122 of the web member 120 and the reverse bending structure 123 are fixedly connected to the stiffening rib 210.

[0144] Alternatively, if Figure 3 As shown, the difference from the floor deck provided in the above-mentioned embodiment is that Figure 3 The floor deck shown includes a plurality of trusses 100 .

[0145] For ease of understanding, this application only describes the different structures between various embodiments, and the structures of other parts not covered are the same or similar and will not be repeated here.

[0146] Optionally, Figure 4a and Figure 4b Two different shapes of stiffening ribs 210 are shown respectively.

[0147] Optionally, Figure 6a-Figure 16 , Figure 19-Figure 25 Various different trusses 100 are shown.

[0148] In some possible implementations, the angle α between the web bar 120 and the plane where the bottom ends of the two web bars 120 are located is between 60 degrees and 89 degrees.

[0149] In this embodiment, if Figure 6a As shown, the angle α between the web member 120 and the bottom surface is between 60 degrees and 89 degrees, which can increase the force transmission effect of the web member 120 while ensuring that the bottom width of the truss 100 is fixed, thereby improving the bearing capacity of the truss 100.

[0150] By applying the embodiments of the present application, at least the following beneficial effects can be achieved: In the embodiment of the present application, the metal plate 200 is directly used as the bottom plate to connect with the truss 100, making full use of the tensile properties of the steel plate, which is equivalent to the lower chord of the truss 100 and the metal plate 200 bearing the tensile force together. The truss 100 and the metal plate 200 can be directly welded, which is convenient for construction. The metal plate 200 can also serve as a template at the same time, and there is no need to remove the template later, which can simplify the construction steps and improve the construction efficiency.

[0151] Moreover, corrugated stiffening ribs 210 can be directly formed on the metal plate 200. The structure of the metal plate 200 becomes thicker at the stiffening ribs 210, which can improve the local width-to-thickness ratio of the metal plate 200, thereby improving the local stability of the metal plate 200, helping to reduce the deflection of the structure and improve the strength of the metal plate 200.

[0152] In addition, the extension direction of the stiffening rib 210 is consistent with the extension direction of the truss 100, that is, the stiffening rib 210 extends along the length direction of the truss 100, which can increase lateral constraints and support, thereby improving the overall stiffness of the floor deck structure and improving the bearing capacity and seismic performance of the structure.

[0153] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0154] The above is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the scheme of the present application, other similar implementation methods based on the technical ideas of the present application are also within the protection scope of the embodiments of the present application.

Claims

1. A floor decking plate, It is characterized in that include: A truss with connected strip-like top chords and wavy webs; Metal plates, some areas of which are bent multiple times to form raised stiffening ribs; The extending direction of the stiffening rib is consistent with the extending direction of the truss; Each inverted structure at the bottom end of the web member is fixedly connected to the stiffening rib.

2. The floor decking according to claim 1, It is characterized in that The stiffening rib comprises at least two bends, and a sub-portion formed between adjacent bends; The sub-portions are arc-shaped and / or straight.

3. The floor decking according to claim 2, It is characterized in that The bending directions of adjacent bending parts are opposite, and all the sub-parts are straight and the planes on which they are located are coincident or parallel.

4. The floor decking according to claim 1, It is characterized in that Include at least one of the following: The transverse cross section of the metal plate at the stiffening rib forms an H-shape flipped 90 degrees, and the transverse direction is consistent with the width direction of the stiffening rib; The metal plate has a V-shape in a transverse cross section at the stiffening rib.

5. The floor decking according to claim 1, It is characterized in that Include at least one of the following: The edge portions of adjacent metal plates are at least partially overlapped to form an overlapped portion; The edge portions of adjacent metal plates are at least partially overlapped, and at least one of the edge portions is bent or curled at least once to form an overlapped portion.

6. The floor decking according to claim 5, It is characterized in that Also includes at least one of the following: The overlapping portion is in the shape of a barb; The overlapping portion is in a curled shape; In the overlapping portion, an edge portion of one of the metal plates covers an edge portion of the other metal plate.

7. The floor decking according to claim 1, It is characterized in that Include at least one of the following: The upper chord includes a main body formed of concrete; the overall length direction of the web member is consistent with the longitudinal direction, and the top end is fixed in the upper chord; the longitudinal direction is consistent with the extension direction of the upper chord; The two web members are arranged along a transverse spacing and are symmetrically disposed, and the planes where the two web members are located intersect with each other, and the intersection line is located above the upper chord; The truss further comprises: a first lower chord connected to the outer side of the recurved structure at the bottom end of the web member and connected to the stiffening rib; The truss further comprises: a second lower chord, connected to the outer side of the recurved structure at the bottom end of the web member at a designed distance; The truss further includes: a second lower chord, the distance between the second lower chord and the top surface of the metal plate being not shorter than 15 mm and not longer than 20 mm; The first lower chord and the reverse bending structure at the bottom end of the web are welded to the top surface of the metal plate.

8. The floor decking according to claim 1, It is characterized in that Include at least one of the following: The inverted structure at the bottom end of the web is arc-shaped, and the welding point is formed at the lowest point of the inverted structure; The reverse bending structure at the bottom end of the web is straight and is welded to the stiffening rib, and a welding point is formed at a bending part of the reverse bending structure.

9. The floor decking according to claim 1, It is characterized in that The reverse bending structure at the bottom end of the web is bent outward to form a foot, which is welded to the stiffening rib, and a welding point is formed on the foot.

10. The floor decking according to claim 1, It is characterized in that The end sections at both ends of the web member are located in a plane perpendicular to the strip-shaped upper chord; The bottom of the end section is bent inwardly or laterally along an extension direction parallel to the strip-shaped upper chord to form a shear-resistant portion, which is welded to the stiffening rib.

11. The floor decking according to claim 1, It is characterized in that A plurality of the trusses are arranged at intervals along the width direction of the metal plate; The arrangement direction of the stiffening ribs is consistent with the arrangement direction of the trusses; Each of the trusses includes at least two web members, which are respectively connected to the at least two stiffening ribs of the metal plate.

12. The floor decking according to claim 1, It is characterized in that Include at least one of the following: A decorative plate, arranged at the bottom of the metal plate, and detachably connected or bonded to the metal plate; A sound insulation structure is arranged between the metal plate and the decorative plate; Along the extension direction of the metal plate, there is a distance between the edge of the metal plate and the edge of the decorative plate; The edges of the adjacent metal plates are connected, and there is a gap between the decorative plates on the bottom surfaces of the adjacent metal plates, and the gap is filled with a caulking material.

13. The floor decking according to claim 7, It is characterized in that The cross section of the main body along the transverse direction includes a rectangle, a trapezoid, an oblong or an irregular polygon.

14. The floor decking according to claim 7, It is characterized in that The upper chord further comprises: a metal member covering at least a portion of the outer surface of the main body; The bottom of the metal component is open, and the top end of the web is inserted into the main body through the opening of the metal component.

15. The floor decking according to claim 14, It is characterized in that The cross section of the metal component is C-shaped.

16. The floor decking according to claim 14, It is characterized in that The edge of the bottom opening of the metal component has a bending portion bent toward the inside of the metal component; The bending portion is embedded in the main body portion.

17. The floor decking according to claim 16, It is characterized in that A plurality of groups of convex parts and concave parts connected in sequence are formed at the edge of the bending part.

18. The floor decking according to claim 7, It is characterized in that Include at least one of the following: At least one first steel bar is arranged in the main body along the longitudinal direction and is located between the top ends of different web members; at least one second steel bar, arranged in the main body along the longitudinal direction and located outside the top end of at least one of the web members; At least one third steel bar is arranged in the body portion along the transverse direction and is connected to at least one of the web member and the first steel bar.

19. The floor decking according to claim 18, It is characterized in that Include at least one of the following: The third steel bar is connected to the top ends corresponding to the two web members; The first steel bar is located between the two web members and below the third steel bar; The second reinforcement is located outside the two web members and below the third reinforcement.

20. The floor decking according to claim 7, It is characterized in that The angle between the web bar and the plane where the bottom ends of the two web bars are located is between 60 degrees and 89 degrees.

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