Floor support plate

Abstract

The utility model 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 technical field of building, in particular, the present application relates to a floor support plate. BACKGROUND

[0002] Under the background of accelerating urbanization, various buildings are increasing. Among them, the truss is widely used to form a floor support plate with the bottom plate set at the bottom. The truss is composed of a top chord and a web below the top chord, usually having a triangular unit plane or space structure, mainly bearing axial tension or pressure, and can fully utilize the strength of the material. Because the two webs of the traditional truss intersect at a point, under the condition that the thickness of the floor is the same, the height of the truss is determined, and the maximum width of the lower part of the truss is also determined.

[0003] In the related art, the metal bottom plate is directly arranged to connect with the above-mentioned truss to form a floor support plate. Because the maximum width of the lower part of the truss is determined, that is, the width of the metal plate affected by each truss is limited, the number of trusses arranged on the metal plate is very large, that is, the truss density is large. In addition, the lower part of the web is transversely bent into a flat section and then connected with the bottom plate, and the elasticity at the bending part will make the rigidity of the overall structure worse, so that the bottom plate can only be used as a formwork and cannot bear the downward tension of the structure. This technical scheme has low bearing capacity, complex manufacturing, low material utilization rate and high cost. CONTENT OF THE UTILITY MODEL

[0004] The present application aims at the shortcomings of the prior art and provides a floor support plate to solve the problems of low bearing capacity, complex manufacturing, low material utilization rate and high cost in the prior art.

[0005] In a first aspect, the embodiments of the present application provide a floor support plate, comprising:

[0006] The truss has a connected strip-shaped top chord and a wave-shaped web;

[0007] The metal plate is partially bent multiple times to form a protruding stiffening rib; the extension direction of the stiffening rib is consistent with the extension direction of the truss;

[0008] The bottom end of the web is fixedly connected with the stiffening rib through the reverse bending structure.

[0009] In some possible embodiments, the stiffening rib includes at least two bending parts and a sub-part formed between adjacent bending parts;

[0010] The sub-part is arc-shaped and / or straight.

[0011] In some possible embodiments, the bending directions of adjacent bending parts are opposite, all the sub-parts are straight and the planes where the sub-parts are located are coincident or parallel.

[0012] In some possible embodiments, the floor support plate comprises at least one of the following:

[0013] The transverse section of the metal plate at the stiffening rib forms a H-shaped section with a 90-degree turn, and the transverse direction is consistent with the width direction of the stiffening rib.

[0014] The transverse section of the metal plate at the stiffening rib forms a V-shaped section.

[0015] In some possible embodiments, the floor support plate comprises at least one of the following:

[0016] The edge portions of the adjacent metal plates are at least partially overlapped to form an overlapping portion;

[0017] The edge portions of the 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 overlapping portion.

[0018] In some possible embodiments, the floor support plate further comprises at least one of the following:

[0019] The overlapping portion is in the shape of a barb;

[0020] The overlapping portion is in the shape of a curled loop;

[0021] The edge portion of one of the metal plates in the overlapping portion covers the edge portion of the other metal plate.

[0022] In some possible embodiments, the floor support plate comprises at least one of the following:

[0023] The top chord comprises a body portion formed of concrete; the whole length direction of the web is consistent with the longitudinal direction, and the top end is fixedly arranged in the top chord; the longitudinal direction is consistent with the extension direction of the top chord; the two webs are arranged at a distance along the transverse direction and symmetrically, and the planes in which the two webs are respectively arranged intersect, and the intersection line is above the top chord;

[0024] The truss further comprises: a first bottom chord, which is connected to the outer side of the reverse bending structure of the bottom end of the web and connected to the stiffening rib;

[0025] The truss further comprises: a second bottom chord, which is connected to the outer side of the reverse bending structure of the bottom end of the web at a designed distance;

[0026] The truss further comprises: a second bottom chord, which is arranged at a distance of not less than 15 mm and not more than 20 mm from the top surface of the metal plate;

[0027] The first bottom chord and the reverse bending structure of the bottom end of the web are both welded to the top surface of the metal plate.

[0028] In some possible embodiments, the floor support plate comprises at least one of the following:

[0029] The reverse bending structure of the bottom end of the web is in an arc shape, and the welding point is formed at the lowest point of the reverse bending structure;

[0030] The reverse bending structure at the bottom end of the web is straight and is welded to the stiffening rib, with the welding point formed at the bending part of the reverse bending structure.

[0031] 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.

[0032] 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;

[0033] 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 to form a shearing portion, which is welded to the reinforcing rib.

[0034] In some possible embodiments, a plurality of trusses are arranged at intervals along the width direction of the metal plate;

[0035] The arrangement direction of the stiffeners is consistent with that of the trusses;

[0036] Each truss includes at least two web members, which are respectively connected to at least two stiffening ribs of the metal plate.

[0037] In some possible embodiments, the floor decking includes at least one of the following:

[0038] A decorative plate is arranged at the bottom of the metal plate and is detachably connected or bonded to the metal plate;

[0039] Sound insulation structure, arranged between the metal plate and the decorative plate;

[0040] 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;

[0041] The edges of the adjacent metal plates are connected, and there is a gap between the decorative panels on the bottom surfaces of the adjacent metal plates, and the gap is filled with a caulking material.

[0042] 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.

[0043] 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;

[0044] 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.

[0045] In some possible embodiments, the cross-section of the metal component is C-shaped.

[0046] 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;

[0047] The bending portion is embedded in the body portion.

[0048] In some possible embodiments, a plurality of groups of convex portions and concave portions are formed at the edge of the bending portion in sequence.

[0049] In some possible embodiments, the floor support plate comprises at least one of the following:

[0050] The at least one first steel bar is arranged in the body portion in the longitudinal direction and located between the top ends of different web bars;

[0051] The at least one second steel bar is arranged in the body portion in the longitudinal direction and located outside the top end of the at least one web bar;

[0052] The at least one third steel bar is arranged in the body portion in the transverse direction and connected with at least one of the web bar and the first steel bar.

[0053] In some possible embodiments, the floor support plate comprises at least one of the following:

[0054] The third steel bar is connected with the top end corresponding to the two web bars;

[0055] The first steel bar is located between the two web bars and below the third steel bar;

[0056] The second steel bar is located outside the two web bars and below the third steel bar.

[0057] In some possible embodiments, the included 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.

[0058] The technical scheme provided by the embodiments of the present application has the following beneficial technical effects:

[0059] In the embodiments of the present application, the metal plate is directly used as the bottom plate connected with the truss, the tensile property of the steel plate is fully utilized, and the lower chord of the truss and the metal plate jointly bear the tensile force. The truss and the metal plate are directly welded, which is convenient for construction. The metal plate can also simultaneously serve as the formwork, and the formwork does not need to be removed in the later period, so that the construction steps can be simplified and the construction efficiency can be improved.

[0060] Moreover, the profiled stiffening ribs can be directly formed on the metal plate, the structure of the metal plate is thickened at the stiffening ribs, the local width-thickness ratio of the metal plate can be improved, and then the local stability of the metal plate can be improved, which helps to reduce the deflection of the structure and improve the strength of the metal plate.

[0061] In addition, the extension direction of the stiffening rib is consistent with the extension direction of the truss, that is, the stiffening rib extends along the length direction of the truss, which can increase the transverse constraint and support, and then the overall rigidity of the floor support plate structure can be improved, and the bearing capacity of the structure can be improved.

[0062] Additional aspects and advantages of the present application will be given in part in the following description, which will become apparent from the following description, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] 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:

[0064] Figure 1 This is a schematic diagram of the main structure of the first floor deck provided in an embodiment of the present application;

[0065] Figure 2 A schematic side structural diagram of the first floor deck provided in an embodiment of the present application;

[0066] Figure 3 This is a schematic diagram of the main structure of the second floor deck provided in an embodiment of the present application;

[0067] Figure 4a for Figure 1 A partial enlarged view of point A in the middle;

[0068] Figure 4b A partially enlarged view of a stiffening rib provided in an embodiment of the present application;

[0069] Figure 5a This is a schematic diagram of the main structure of the third type of floor deck provided in an embodiment of the present application;

[0070] Figures 5b-5f A schematic diagram of the structure of the connection between adjacent metal plates in various floor decking panels provided in embodiments of the present application;

[0071] 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;

[0072] Figure 5h A schematic diagram of the three-dimensional structure of a fifth floor deck provided in an embodiment of the present application;

[0073] Figure 5i A schematic diagram of the main structure of the sixth type of floor deck provided in an embodiment of the present application;

[0074] 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;

[0075] Figure 5k A schematic diagram of the main structure of the seventh floor deck provided in an embodiment of the present application;

[0076] Figure 6a 、 Figures 7-16 、 Figures 19-25 Schematic diagram of the main structure of various trusses provided in the embodiments of the present application;

[0077] Figure 6b and Figure 6c A comparison diagram of a truss and related technologies provided for an embodiment of the present application;

[0078] Figure 17 and Figure 18 An enlarged view of a structure at a bent portion of an upper chord of a truss provided for an embodiment of the present application.

[0079] Reference Signs:

[0080] 100 - truss;

[0081] 110 - upper chord; 111 - body portion; 112 - metal member; 113 - bent portion; 1131 - protruding portion; 1132 - recessed portion;

[0082] 120 - web member; 121 - top end of web member 120; 122 - bottom end of web member 120; 123 - reverse bent structure; 124 - foot; 125 - shear-resistant portion;

[0083] 130 - first lower chord; 140 - second lower chord; 150 - first steel bar; 151 - second steel bar; 160 - third steel bar;

[0084] 200 - metal plate; 210 - stiffening rib; 211 - sub-portion; 221 - first edge portion; 222 - second edge portion;

[0085] 300 - connector; 400 - decorative plate; 500 - soundproof structure; 600 - superimposed portion. DETAILED DESCRIPTION

[0086] Embodiments of the present application will be described below in conjunction with the accompanying drawings. It should be understood that the embodiments described below in conjunction with the accompanying drawings are exemplary descriptions of the technical solutions of the embodiments of the present application, and do not limit the technical solutions of the embodiments of the present application.

[0087] Those skilled in the art can understand that, unless specifically stated otherwise, "said" and "the" used herein can also include plural forms. It should be further understood that the phrase "comprising" used in the specification of the present application means that the features, integers, steps, operations, elements and / or components exist, but does not exclude other features, information, data, steps, operations, elements, components and / or combinations thereof supported by the present technical field. The term "and / or" used herein means at least one of the items defined by the term, for example, "A and / or B" can be implemented as "A", or as "B", or as "A and B".

[0088] For the purposes of the present application, the technical solutions and advantages, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0089] In the related art, a formwork needs to be arranged below the truss to form a floor support plate, and the subsequent formwork needs to be removed, which is relatively complex and inefficient.

[0090] In the related art, a metal bottom plate is also directly arranged to connect with the truss, but the strength is not enough and the reliability is poor.

[0091] The floor support plate provided by the present application aims to solve the above technical problems in the related art.

[0092] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific embodiments. It should be pointed out that the following embodiments can be mutually referenced, borrowed or combined. For the same terms, similar features and similar implementation steps in different embodiments, they will not be described repeatedly.

[0093] Please refer to Figures 1-3 The embodiment of the present application provides a floor support plate, which comprises a truss 100 and a metal plate 200.

[0094] The truss 100 has a connected strip-shaped top chord 110 and a wave-shaped web 120.

[0095] The metal plate 200 is partially folded 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.

[0096] The bottom end 122 of the web 120 is fixedly connected with the stiffening rib 210.

[0097] In the embodiment of the present application, the metal plate 200 is directly used as the bottom plate to connect with the truss 100, which fully utilizes the tensile property of the steel plate, and the lower chord of the truss 100 and the metal plate jointly bear the tensile force. The truss 100 and the metal plate 200 are directly welded, which is convenient for construction. The metal plate 200 can also simultaneously act as a formwork, and there is no need to remove the formwork in the later stage, which can simplify the construction steps and improve the construction efficiency.

[0098] Moreover, the profiled stiffening rib 210 can be directly formed on the metal plate 200, the structure of the metal plate 200 is thickened at the stiffening rib 210, which can improve the local width-thickness ratio of the metal plate 200, and further improve the local stability of the metal plate 200, which helps to reduce the deflection of the structure and improve the strength of the metal plate 200.

[0099] In addition, the extending direction of the stiffening rib 210 is consistent with the extending direction of the truss 100, that is, the stiffening rib 210 extends along the length direction of the truss 100, which can increase the transverse constraint and support, and further improve the overall rigidity of the floor deck structure, and improve the bearing capacity and seismic performance of the structure.

[0100] In some possible embodiments, as shown in FIGS. 1, 2, 3, 4 and 5, the stiffening rib 210 includes at least two bending positions, and a sub-part 211 formed between adjacent bending positions. Figure 1 、 Figure 4a In some possible embodiments, as shown in FIGS. 1, 2, 3, 4 and 5, the stiffening rib 210 includes at least two bending positions, and a sub-part 211 formed between adjacent bending positions.

[0101] The sub-part 211 is arc-shaped and / or straight.

[0102] In the embodiment, the local position of the metal plate 200 is bent to form a protruding structure. After the local position 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-thickness ratio of the metal plate 200 at the stiffening rib 210, and further improve the strength of the metal plate 200, and 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.

[0103] In some possible embodiments, as shown in FIGS. 1, 2, 3, 4 and 5, the stiffening rib 210 includes at least two bending positions, and a sub-part 211 formed between adjacent bending positions. Figure 4a In the embodiment, the local position of the metal plate 200 is bent to form a protruding structure. After the local position 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-thickness ratio of the metal plate 200 at the stiffening rib 210, and further improve the strength of the metal plate 200, and 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.

[0104] In some possible embodiments, as shown in FIGS. 1, 2, 3, 4 and 5, the stiffening rib 210 includes at least two bending positions, and a sub-part 211 formed between adjacent bending positions.

[0105] Figure 4a In the embodiment, the local position of the metal plate 200 is bent to form a protruding structure. After the local position 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-thickness ratio of the metal plate 200 at the stiffening rib 210, and further improve the strength of the metal plate 200, and 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.

[0106] In the embodiment, the local position of the metal plate 200 is bent to form a protruding structure. After the local position 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-thickness ratio of the metal plate 200 at the stiffening rib 210, and further improve the strength of the metal plate 200, and 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.

[0107] In some possible embodiments, as shown in FIGS. 1, 2, 3, 4 and 5, the stiffening rib 210 includes at least two bending positions, and a sub-part 211 formed between adjacent bending positions. Figure 4b In the embodiment, the local position of the metal plate 200 is bent to form a protruding structure. After the local position 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-thickness ratio of the metal plate 200 at the stiffening rib 210, and further improve the strength of the metal plate 200, and 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.

[0108] Figure 4a ​​The convex stiffening ribs 210 are bent at both ends to form a V shape, and the bottom end 122 of the web plate 120 is arranged on the V-shaped stiffening rib 210 in one-to-one correspondence.

[0109] In some possible embodiments, the edge portions of the adjacent metal plates 200 are at least partially overlapped to form the overlapping portion 600.

[0110] In the present embodiment, the edge portions of the plurality of metal plates 200 are connected to form a floor plate with a larger area. Figure 1 、 Figure 3 and Figure 5a As shown in FIGS. 1, 2, and 3, 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 is overlapped with the first edge portion 221 of the adjacent metal plate 200 to form the overlapping portion 600, so that the plurality of metal plates 200 are connected.

[0111] In some possible embodiments, the edge portions of the adjacent metal plates 200 are at least partially overlapped, and at least one edge portion is bent or curled at least once to form the overlapping portion 600.

[0112] In the present embodiment, the edge portions of the adjacent metal plates 200 are at least partially overlapped and the whole is bent or curled at least once after overlapping to form the overlapping portion 600, thereby stably connecting the adjacent metal plates 200 and improving the bearing capacity of the floor deck. In some possible embodiments, the overlapping portion 600 is in the shape of a barb.

[0113] As shown in FIGS. 1, 2, and 3, the two edge portions of the metal plate 200 are respectively a first edge portion 221 and a second edge portion 222. Figure 5a The second edge portion 222 of one metal plate 200 is overlapped with the first edge portion 221 of the adjacent metal plate 200 to form the overlapping portion 600, so that the plurality of metal plates 200 are connected.

[0114] In some possible embodiments, the overlapping portion 600 is in the shape of a loop.

[0115] As shown in FIGS. 1, 2, and 3, the two edge portions of the metal plate 200 are respectively a first edge portion 221 and a second edge portion 222. Figure 5c and Figure 5d 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 the whole is bent or curled at least once after overlapping to form a loop, so that the adjacent metal plates 200 are stably connected and are not easily displaced.

[0116] In some possible embodiments, the edge portion of one metal plate in the overlapping portion 600 covers the edge portion of another metal plate.

[0117] As shown in FIGS. 1, 2, and 3, the two edge portions of the metal plate 200 are respectively a first edge portion 221 and a second edge portion 222. Figure 5e and Figure 5fAs shown, in 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 the first edge portion 221 of the right metal plate 200 is bent again towards the second edge portion 222 of the left metal plate 200. 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 easy to shift.

[0118] In the present embodiment, the 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 to form a stiffening rib 210. The cross section of the formed stiffening rib 210 is spiral. The stiffening rib 210 in the present embodiment 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, thereby being able to enhance the strength of the connection between the metal plate 200 and the truss 100 and enhance the overall strength of the floor slab.

[0119] The research and development ideas of the present application include: in the related art, the top ends of two web members are connected to form a vertex and are connected with a top chord to form a truss with a triangular unit space structure. The plane where the bottom ends of the two web members 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 is used to represent the bottom surface). The top chord can be a steel top chord, a concrete top chord or a steel-concrete combined top chord.

[0120] The carrying capacity of the truss is related to the height of the truss, the angle between the web member and the bottom surface, and the spacing of the bottom ends of the web members along the second direction (hereinafter referred to as the bottom width of the truss).

[0121] The higher the height of the truss, the higher the carrying capacity. As shown in Figure 6b , 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 thickness of the floor slab is determined, and the height of the truss is also determined, so it is difficult to increase the carrying capacity of the truss by increasing the height of the truss.

[0122] Further, the wider the bottom width of the truss, the larger the force transmission area of the truss and the floor structure at the bottom, and the better the carrying capacity and safety. As shown in Figure 6b and Figure 6c , 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, the carrying capacity of the truss can be changed by increasing the bottom width of the truss.

[0123] However, the larger the angle between the web member and the bottom surface, the closer the web member to the vertical state, and the better the force transmission effect.

[0124] 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 to the truss formed by the web member C in the figure, 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 it more likely to deform or collapse when subjected to external forces, resulting in poor load-bearing capacity and safety of the truss.

[0125] Therefore, in some possible embodiments, such as Figure 1 、 Figure 2 as well as Figure 6a As shown, the upper chord 110 includes a main body 111 formed of concrete. The web members 120 have an overall longitudinal direction, with their top ends fixed within the upper chord 110. The longitudinal direction aligns with the extension direction of the upper chord 110. The two web members 120 are arranged symmetrically with a transverse spacing, with their respective planes intersecting, and the intersection line located above the upper chord 110.

[0126] In this embodiment, the two webs 120 are arranged along the transverse spacing and symmetrically, both facing the center line (such as Figure 6a The web members 120 are inclined, i.e., the top ends 121 of the two web members 120 correspond one to one. The web members 120 are planar wavy structures formed by bending a rod-like object back and forth. The planes on which the two web members 120 lie intersect, and the intersection line is located above the upper chord 110. Compared to the technical solutions in the related art in which the planes on which the two web members 120 lie 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. In the plate member formed by the bottom of the truss 100 and the plate structure, the force transmission area between the bottom of the truss 100 and the plate structure is increased, thereby improving the load-bearing capacity and stability of the plate member.

[0127] 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 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.

[0128] 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.

[0129] Optionally, the upper chord 110 of the truss 100 can be formed by steel bars, forming a steel bar truss 100 with the web bars 120 and the second lower chord bars 140.

[0130] In some possible embodiments, as shown in Figure 7 The truss 100 further includes the first lower chord bars 130 connected to the outside of the reverse bending structure 123 of the bottom end 122 of the web bars 120 and connected to the stiffening ribs 210.

[0131] In some possible embodiments, the truss 100 further includes the second lower chord bars 140 connected to the outside of the reverse bending structure 123 of the bottom end 122 of the web bars 120 at a designed distance.

[0132] In the present embodiment, the lower chord of the truss 100 is formed by steel bars (the first lower chord bars 130 and the second lower chord bars 140), which can be arranged parallel to each other and arranged at a distance from the outside of the web bars 120, so that the truss 100 forms a space structure.

[0133] In some possible embodiments, the second lower chord bars 140 are arranged at a distance of not less than 15 mm and not more than 20 mm from the top surface of the metal plate 200.

[0134] In some possible embodiments, the first lower chord bars 130 and the reverse bending structure 123 of the bottom end 122 of the web bars 120 are both welded to the top surface of the metal plate 200.

[0135] In the present embodiment, the first lower chord bars 130 are connected to the outside of the reverse bending structure 123 of the bottom end 122 of the web bars 120, and the first lower chord bars 130 and the reverse bending structure 123 of the bottom end 122 of the web bars 120 are both welded to the top surface of the metal plate 200, so that the overall structure is more stable.

[0136] Optionally, the first lower chord bars 130 and the second lower chord bars 140 can each include at least one of a prestressed steel bar, a prestressed steel strand or a prestressed steel wire, which can enhance the crack resistance and carrying capacity of the truss 100 and reduce the deflection.

[0137] In some possible embodiments, as shown in Figure 2 The reverse bending structure 123 of the bottom end 122 of the web bars 120 is arc-shaped, and the welding points are formed at the lowest points of the reverse bending structure 123.

[0138] In the present embodiment, the bottom end 122 of the web bars 120 is arc-shaped, the lowest points of the arc-shaped structure are welded to the stiffening ribs 210 of the metal plate 200, and the welding points only need to be formed at the lowest points of the reverse bending structure 123.

[0139] In some possible embodiments, the reverse bending structure 123 of the bottom end 122 of the web member 120 is flat, and is welded with the stiffening rib 210 at the bending position of the reverse bending structure 123.

[0140] In the embodiment, as shown in the figure, Figure 8 the reverse bending structure 123 is flat, and only needs to be welded at the bending positions of the flat reverse bending structure 123, which is convenient for construction.

[0141] In some possible embodiments, the reverse bending structure 123 of the bottom end 122 of the web member 120 is outwardly bent to form a bottom foot 124, and is welded with the stiffening rib 210 at the bottom foot 124.

[0142] In the embodiment, as shown in the figure, Figure 5g the reverse bending structure 123 extends outwardly at the first bending position, extends a certain length, bends inwardly again, extends a certain length, and then bends upwardly to form the middle part of the web member 120, and returns to the plane where the web member 120 is located.

[0143] That is, unlike the scheme that the web member 120 as a whole is in a plane in the foregoing embodiment, in the embodiment, the reverse bending structure 123 of the bottom end 122 of the web member 120 extends outwardly by a certain length and is nearly parallel to the metal plate 200. Except the reverse bending structure 123 of the bottom end 122 of the web member 120, other parts are in the same plane.

[0144] In the embodiment, the stiffening rib 210 is welded with 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 stability of the floor support plate as a whole.

[0145] It can be understood that, in the embodiment, taking the truss 100 as a whole as a reference, outwardly means toward the left and right sides of the truss 100, and inwardly means toward one side of the interior of the truss 100.

[0146] In some possible embodiments, the end section of the web member 120 at both ends is located in a plane perpendicular to the strip-shaped top chord 110;

[0147] The bottom of the end section is inwardly bent or laterally bent along the extension direction parallel to the strip-shaped top chord 110 to form a shear part 125, which is welded with the stiffening rib.

[0148] As shown in the figure, Figure 5h the bottom of the end section has no reverse bending structure 123, and is just the end of the web member 120. The end section of the web member 120 is inwardly bent along the extension direction parallel to the strip-shaped top chord 110 to form a shear part 125. It can also be understood that the web member 120 is bent back along the extension direction parallel to the strip-shaped top chord 110 at the end, which is equivalent to closing the web member 120 inwardly, and plays a certain shear effect.

[0149] As shown in Figure 5g The bottom of the end section is just the reverse bending structure 123 of the edge, and the bottom of the end section is laterally bent along the extension direction of the strip-shaped top chord 110 to form a shear part 125. It can also be understood that the web member 120 is bent outward of the truss at the end to form a shear part 125, which plays a certain shear effect. Among them, the lateral direction is perpendicular to the strip-shaped top chord 110 and parallel to the metal plate 200.

[0150] In some possible embodiments, as shown in Figure 3 A plurality of trusses 100 are arranged at intervals along the width direction of the metal plate 200.

[0151] The arrangement direction of the stiffening rib 210 is consistent with the arrangement direction of the truss 100.

[0152] Each truss 100 includes at least two web members 120, which are respectively connected with at least two stiffening ribs 210 of the metal plate 200.

[0153] In the embodiment, the bottom end 122 of the web member 120 of each truss 100 is connected with the stiffening rib 210 one by one, thereby improving the connection stability between the truss 100 and the metal plate 200 and improving the strength of the floor deck.

[0154] In some possible embodiments, as shown in Figure 5i and Figure 5j The decorative plate 400 is arranged at the bottom of the metal plate 200 and is detachably connected or bonded with the metal plate 200.

[0155] In the embodiment, the decorative plate 400 can be connected with the metal plate 200 through the connecting piece 300 at the bottom of the metal plate 200. After the floor deck is arranged in the building, the decorative plate 400 can play a role of tidiness and beauty. Moreover, the decorative plate 400 is detachably connected or bonded with the metal plate 200, and the decorative plate 400 can also be replaced as needed.

[0156] Optionally, the decorative plate 400 and the metal plate 200 can be detachably connected through screws and the like.

[0157] Optionally, the decorative plate 400 and the metal plate 200 can be bonded through adhesives such as glue.

[0158] Optionally, the decorative plate 400 can include a thin mortar, a gypsum board, a fiber cement board, and the like.

[0159] In some possible embodiments, as shown in Figure 5k The sound insulation structure 500 is arranged between the metal plate 200 and the decorative plate 400.

[0160] In the embodiment, the sound insulation material can be filled between the metal plate 200 and the decorative plate 400 to form a sound insulation structure 500, so that the sound insulation effect between floors is good.

[0161] Optionally, the sound insulation structure 500 can be made of rock wool, glass wool, or other sound insulation materials.

[0162] In some possible embodiments, along the extension direction of the metal plate 200, the edge of the metal plate 200 has a spacing with the edge of the decorative plate 400.

[0163] The edges of adjacent metal plates 200 are connected, and the decorative plates 400 on the bottom surfaces of the adjacent metal plates 200 have gaps, and the gaps are filled with caulking materials.

[0164] In the embodiment, as shown in Figure 5i , the area of the decorative plate 400 is slightly smaller than that of the metal plate 200. When the plurality of metal plates 200 are spliced, the decorative plates 400 on the bottom surfaces of the adjacent metal plates 200 have gaps, and the plurality of decorative plates 400 are connected into one by filling the gaps with caulking materials.

[0165] Optionally, the main body part 111 includes a rectangle, a trapezoid, an oblong, or an irregular polygon in the transverse section.

[0166] In the embodiment, the main body part 111 of the upper chord 110 can have various shapes in the transverse section according to needs, such as a rectangle as shown in Figure 7 , a trapezoid as shown in Figure 9 , an oblong as shown in Figure 10 , and a polygon as shown in Figure 11 and Figure 12 . For the convenience of understanding, only the different structures between various embodiments are described in the present application, and the structures not described are the same or similar, which will not be described here.

[0167] In some possible embodiments, as shown in Figures 13a-16 , the upper chord 110 further includes a metal member 112 wrapped on at least part of the outer surface of the main body part 111.

[0168] The bottom of the metal member 112 is open, and the top end 121 of the web 120 is inserted into the main body part 111 from the opening of the metal member 112.

[0169] In the embodiment, the metal member 112 and the main body part 111 formed of concrete can form an open steel pipe 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 carrying capacity and tensile capacity of the upper chord 110.

[0170] Optionally, the metal member 112 includes an open steel pipe.

[0171] In some possible embodiments, as shown in Figure 14a or Figure 14b the cross section of the metal member 112 is C-shaped.

[0172] Optionally, the metal member 112 comprises a channel steel or a C-shaped steel.

[0173] In some possible embodiments, as shown in Figure 13a , Figure 13b or Figure 16 the edge of the bottom opening of the metal member 112 is provided with a bent portion 113 bent towards the inside of the metal member 112.

[0174] The bent portion 113 is embedded in the main body portion 111.

[0175] In the present embodiment, the edge of the opening of the metal member 112 is bent towards the inside of the main body portion 111 to form the bent portion 113 and is embedded in the main body portion 111, which can enhance the binding capacity between the metal member 112 and the main body portion 111, thereby ensuring the good reliability of the chord 110 itself.

[0176] In some possible embodiments, as shown in Figures 17-18 the edge of the bent portion 113 is provided with a plurality of sets of convex portions 1151 and concave portions 1132 connected in sequence.

[0177] In the present embodiment, the edge is provided with a concave-convex structure, and the concrete forming the main body portion 111 is also provided with a complementary concave-convex structure at the edge of the bent portion 113, which can enhance the gripping force between the bent portion 113 and the main body portion 111, thereby ensuring the good reliability of the chord 110 itself.

[0178] Optionally, as shown in Figure 18 the edge of the bent portion 113 is sawtooth-shaped.

[0179] In some possible embodiments, the truss 100 further comprises at least one first steel bar 150.

[0180] As shown in Figure 20 the at least one first steel bar 150 is arranged in the main body portion 111 in the longitudinal direction and located between the top ends 121 of different web members 120.

[0181] In some possible embodiments, as shown in Figure 24 the truss 100 further comprises at least one second steel bar 151. The at least one second steel bar 151 is located outside the top end of the at least one web member 120.

[0182] 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 serve as a negative bending moment steel bar. In addition, the web member 120 can be connected 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 top chord 110.

[0183] It can be understood that the outer side of the web member 120 in the embodiment of the present application refers to the direction towards the left and right sides of the truss 100, and the inner side of the web member 120 refers to the direction towards the inside of the truss 100.

[0184] Alternatively, the web member 120 is a planar wave structure formed by bending a rod back and forth, and a continuous bending process of the web member 120 can be formed by using a steel bar truss 100 automatic production line. The top end 121 of the web member 120 and the bottom end 122 of the web member 120 each include a reverse bending structure, which can be arc-shaped or flat. In the same web member 120, the reverse bending structure can include both arc-shaped and flat, depending on the actual situation.

[0185] In addition, the number of first steel bars 150 can be multiple, and they are symmetrically arranged about the center line, which is beneficial to ensure the structural stability of the truss 100.

[0186] In some possible embodiments, as shown in Figures 21-25 The truss 100 further includes at least one third steel bar 160.

[0187] The at least one third steel bar 160 is arranged in the main body 111 along the transverse direction and connected to at least one of the web member 120 and the first steel bar 150.

[0188] In the embodiment, the third steel bar 160 can be connected to the web member 120, or connected to the first steel bar 150, or connected to both the web member 120 and the first steel bar 150, thereby improving the strength of the top chord 110.

[0189] The embodiments provided by the present application will be described below with reference to the drawings. For the convenience of understanding, the present application only describes the different structures between various embodiments, and the structures not described are the same or similar, which will not be described here.

[0190] In some possible embodiments, as shown in Figure 21 The third steel bar 160 is connected to the top end 121 of each of the two web members 120.

[0191] In some possible embodiments, as shown in Figure 22As 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 .

[0192] In some possible embodiments, such as Figure 23 As shown, two first steel bars 150 are disposed in the upper chord 110 . The two first steel bars 150 are spaced between the top ends 121 of the two web members 120 , and are disposed below the third steel bars 160 and welded to the third steel bars 160 .

[0193] In some possible embodiments, such as Figure 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 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 .

[0194] In some possible embodiments, such as Figure 25 As shown, in the upper chord 110, two second steel bars 151 are disposed outside the top ends 121 of the two web members 120, and are disposed below the third steel bar 160, and are welded to the third steel bar 160 and the top ends 121 of the web members 120. A first steel bar 150 is disposed between the top ends 121 of the two web members 120, and is disposed 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.

[0195] 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 .

[0196] Furthermore, the third steel bar 160 is connected to the top ends 121 of the two web members 120 at the same time, connecting the two web members 120 into one, which can also facilitate positioning and thus facilitate the manufacture of the truss 100.

[0197] 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 lifting, the reverse bending structure of the top 121 of the web 120 can be used as a lifting point, which is convenient for transportation and disassembly.

[0198] The specific structures of various floor decking plates 100 are described below with reference to the accompanying drawings.

[0199] Alternatively, as Figure 1 and Figure 2As shown, the floor support plate comprises: a truss 100 and a metal plate 200. The truss 100 has a connected strip-shaped top chord 110 and a wave-shaped web 120. The metal plate 200 is partially folded 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 120 is fixedly connected with the stiffening rib 210 through a reverse bending structure 123.

[0200] Optionally, as Figure 3 shown, unlike the floor support plate provided in the foregoing embodiments, Figure 3 the floor support plate shown comprises a plurality of trusses 100.

[0201] For the convenience of understanding, the present application only describes the different structures between various embodiments, and the structures of other aspects are the same or similar, which will not be described here.

[0202] Optionally, Figure 4a and Figure 4b two different shapes of stiffening ribs 210 are respectively shown.

[0203] Optionally, Figures 6a-16 , Figures 19-25 a plurality of different trusses 100 are respectively shown.

[0204] In some possible embodiments, the included angle a between the web 120 and the plane where the bottom end of the web 120 is located is between 60 degrees and 89 degrees.

[0205] In the present embodiment, as Figure 6a shown, the included angle a between the web 120 and the bottom surface is between 60 degrees and 89 degrees, which can increase the force transmission effect of the web 120 on the basis of ensuring the fixed bottom width of the truss 100, thereby improving the carrying capacity of the truss 100.

[0206] By applying the embodiments of the present application, at least the following beneficial effects can be achieved:

[0207] In the embodiments of the present application, the metal plate 200 is directly used as the bottom plate connected with the truss 100, the tensile property of the steel plate is fully utilized, and the lower chord of the truss 100 and the metal plate 200 jointly bear 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 simultaneously serve as a formwork, and the formwork does not need to be removed in the later period, which can simplify the construction steps and improve the construction efficiency.

[0208] Moreover, the profiled stiffening rib 210 can be directly formed on the metal plate 200, the structure of the metal plate 200 is thickened at the stiffening rib 210, which can improve the local width-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 improving the strength of the metal plate 200.

[0209] 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 the transverse constraint and support, and further improve the overall rigidity of the floor deck structure, and improve the carrying capacity and seismic performance of the structure.

[0210] The terms “first”, “second”, “third”, etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first”, “second” can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of “a plurality of” is two or more.

[0211] The above only describes some embodiments of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical concept of the present application, other similar implementation means based on the technical idea of the present application also belong to the protection scope of the present application.

Claims

1. A floor deck, 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; The inverted structures at the bottom ends of the webs are fixedly connected to the stiffening ribs.

2. The floor decking according to claim 1, characterized in that: 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.

3. The floor decking according to claim 2, 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, 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-shaped transverse cross section at the stiffening rib.

5. The floor decking according to claim 1, 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, 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, characterized in that: Include at least one of the following: The upper chord includes a main body formed of concrete; the entire 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 web members are arranged symmetrically along a transverse spacing, and the planes on which they are located intersect with each other, and the intersection line is located above the upper chord; The truss further includes: a first bottom chord connected to the outer side of the reverse bending structure of the bottom end of the web member and connected to the stiffening rib; The truss further comprises: a second bottom 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 bottom chord having a distance from the top surface of the metal plate 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, characterized in that: Include at least one of the following: The reverse bending structure at the bottom end of the web is arc-shaped, and the welding point is formed at the lowest point of the reverse bending structure; The reverse bending structure at the bottom end of the web is straight and is welded to the stiffening rib, with the welding point formed at the bending part of the reverse bending structure.

9. The floor decking according to claim 1, 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, characterized in that: The end sections at both ends of the web are located in a plane perpendicular to the strip-shaped upper chord; 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 to form a shear-resistant portion, which is welded to the stiffening rib.

11. The floor decking according to claim 1, characterized in that: The plurality of 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, characterized in that: Include at least one of the following: A decorative plate is provided at the bottom of the metal plate and is detachably connected or bonded to the metal plate; a sound insulation structure, disposed 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, 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, characterized in that: The upper chord further includes: 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, characterized in that: The cross section of the metal component is C-shaped.

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

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

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

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

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