Connecting assembly, steel bar truss floor support plate and steel bar truss floor support plate system

Abstract

The embodiment of the utility model provides a connecting assembly, a steel bar truss floor support plate and a steel bar truss floor support plate system. The connecting assembly comprises a connecting piece and a cushion block, in the first direction, the connecting piece is provided with a bearing side and a dismounting side which are oppositely arranged, and the cushion block is provided with an abutting side and an embedding side which are oppositely arranged. The bearing side is provided with a clamping groove which penetrates through the connecting piece in the second direction and opens towards the steel bar truss in the first direction, the second direction and the first direction are perpendicular to each other, and the bottom end of the steel bar truss is clamped in the clamping groove. The bottom formwork is detachably connected with the dismounting side, the dismounting side is provided with an embedded groove facing an opening of the bottom formwork, the embedded side is embedded into the embedded groove, the abutting side protrudes out of the dismounting side and abuts against the bottom formwork, putty can be adhered to the cushion block, and after the bottom formwork is dismounted, the exposed cushion block can be well adhered to the putty. The connecting assembly is applied to the steel bar truss floor support plate and the steel bar truss floor support plate system, so that the floor slab can be well adhered by putty, and subsequent leveling treatment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of building components, in particular to a connection assembly, a steel truss floor deck and a steel truss floor deck system. Background Art

[0002] Compared with the traditional floor decking that supports concrete through the bottom formwork, the steel truss floor decking can not only speed up the construction progress, but also enhance the supporting effect. Therefore, the steel truss floor decking is widely used in the current floor construction. The removable bottom mode steel truss floor decking can remove the bottom formwork for recycling when the concrete is poured and solidified into a floor slab, which not only saves resources but also reduces the purchase cost of the bottom formwork. In order to facilitate the disassembly and assembly of the bottom formwork, a connector is often provided between the bottom formwork and the steel truss. In order to prevent the connector exposed to the outside world from being corroded by the outside world after the bottom formwork is disassembled, the joint between the connector and the bottom formwork is often made of plastic material, which will cause the solidified floor slab to be puttyed later. The putty cannot adhere to the exposed part of the plastic connector, resulting in partial putty falling off, affecting the leveling of the floor slab, thereby affecting the aesthetics of the floor slab. Utility Model Content

[0003] In view of the above problems, an embodiment of the utility model is proposed. The purpose of the embodiment of the utility model is to provide a connection component in which the exposed part can be well adhered to the putty after the bottom template is disassembled.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A connection assembly, comprising:

[0006] A connecting member, along a first direction, having a load-bearing side and a disassembly side arranged opposite to each other, the load-bearing side having a clamping groove penetrating the connecting member along a second direction and opening toward the steel bar truss along the first direction, the bottom end of the steel bar truss being clamped in the clamping groove, the bottom template being detachably connected to the disassembly side, the disassembly side having an embedded groove opening toward the bottom template, and the third direction, the second direction and the first direction being perpendicular to each other; and

[0007] The pad has a contact side and an engaging side which are arranged relatively along the first direction. The contact side protrudes from the disassembly side and contacts the bottom template. The engaging side is embedded in the embedded groove. Putty can adhere to the pad.

[0008] Preferably, a mounting platform is partially extended from the bottom wall of the embedded groove toward the bottom template, and a mounting hole is provided in the center of the mounting platform;

[0009] The cushion block is covered on the outer circumference of the mounting platform, and the cushion block is provided with a mounting through hole coaxially connected with the mounting hole, and the mounting through hole passes through the cushion block.

[0010] Preferably, a plurality of weight-reducing holes are provided between the bottom wall of the clamping groove and the disassembly side and between the bottom wall of the embedded groove in the circumferential direction of the mounting platform and the load-bearing side.

[0011] Preferably, on the plane where the second direction and the third direction are located, the projected area of ​​the outer surface of the abutting side is not less than the projected area of ​​the outer surface of the mating side, and the portion of the pad between the mating side and the abutting side is evenly transitioned.

[0012] Preferably, both ends of the disassembly side along the third direction correspond to an embedded groove, and the cushion blocks are arranged in a one-to-one correspondence with the embedded grooves.

[0013] Preferably, the pad is formed by solidifying concrete.

[0014] Preferably, the card slot includes:

[0015] The entry portion, along the first direction, has one side penetrating through the bearing side and communicating with the outside, and the other side communicating with the bottom wall of the clamping groove;

[0016] A clamping portion is provided at both ends of the bottom wall of the clamping groove along the third direction. The clamping portion is connected to the entry portion and is formed by two opposite entry portion side walls along the third direction being concave inwardly facing each other. The bottom end of the steel bar truss is accommodated in the clamping portion.

[0017] Preferably, two opposite side walls of the clamping part along the first direction close to one end of the entry part have limit blocks toward the clamping part, and the bottom end of the steel bar truss is located between the bottom wall of the clamping part along the three directions and the limit blocks.

[0018] Preferably, the outer surface of the limit block is a smooth curved surface; or

[0019] One end of the limiting block facing the entry portion has a guide surface, and the guide surface can guide the bottom of the steel bar truss to enter the clamping portion.

[0020] Preferably, the two opposite side walls of the entrance portion are inclined away from each other along the positive direction of the first direction.

[0021] Preferably, the connecting piece is integrally formed of plastic material.

[0022] Another object of the embodiment of the utility model is to provide a steel truss floor decking plate which is convenient for puttingtying the floor slab after the bottom formwork is removed.

[0023] A steel bar truss floor deck, comprising:

[0024] Steel trusses;

[0025] a bottom template; and

[0026] In the above-mentioned connection assembly, the bottom end of the steel bar truss is clamped in the clamping groove, and the bottom template is connected to the connection assembly through a fastener.

[0027] Preferably, a plurality of the steel bar trusses are evenly spaced and arranged on the bottom template;

[0028] The steel truss comprises:

[0029] The upper chord steel bars, the two lower chord steel bars located on both sides below the upper chord steel bars, and the web bars connected to the upper chord steel bars and the lower chord steel bars at both ends;

[0030] Each of the steel bar trusses corresponds to a plurality of the connection components, and the plurality of connection components are evenly spaced along the axial direction of the lower chord steel bar;

[0031] The lower chord steel bar is clamped in the clamping groove.

[0032] Preferably, the steel bar truss floor deck further comprises:

[0033] A fastener is provided at both ends of the clamping groove along the third direction, and the fastener can connect the bottom template with the connecting assembly.

[0034] Preferably, the bottom template can be one of galvanized sheet, galvanized alloy sheet, patterned steel sheet, bamboo plywood, wooden template, wood-plastic board, injection molded board, aluminum alloy template, corrugated steel sheet, fiber cement board, cement pressure board. The thickness of the bottom template made of metal material is 1mm-2mm, and the thickness of the bottom template made of non-metal material is 15mm-25mm.

[0035] The third object of the embodiment of the utility model is to provide a steel truss floor deck system which is convenient for puttying the floor slab after the bottom formwork is removed.

[0036] A steel bar truss floor deck system, comprising:

[0037] A plurality of steel truss floor decks arranged in sequence, wherein the steel truss floor decks are the steel truss floor decks mentioned above; and

[0038] The support member is located on a side of the bottom template away from the steel bar truss and at the butt joint between two adjacent bottom templates. The support member is respectively connected to the two adjacent bottom templates.

[0039] Preferably, a plurality of the support members are arranged at intervals at the butt joint, and the support members at two adjacent butt joints are arranged in a staggered manner.

[0040] Preferably, the support member is provided with a plurality of through holes at intervals, and the through holes are coaxial with the fasteners at corresponding positions;

[0041] The fastener is inserted into the through hole to connect the support member, the bottom template and the connecting assembly.

[0042] Preferably, the through hole has a recessed platform on a side facing away from the bottom template, and the fastener abuts against the recessed platform on a side facing away from the connecting assembly and is completely accommodated in the recessed platform.

[0043] Preferably, the support member is made of plastic.

[0044] The technical solution provided by the embodiment of the utility model is to set a pad between the connector and the bottom template, and the pad is embedded in the disassembly side of the connector to ensure a good connection between the pad and the connector, and the abutment side of the pad protrudes from the disassembly side of the connector to ensure that the connector does not leak out after the bottom plate is removed, and the disassembly side of the pad leaks out, and the putty can adhere to the pad, so as to ensure that it is convenient to scrape putty on the floor after the bottom plate is removed, and avoid the phenomenon that the local putty of the floor does not adhere and falls off and cannot be leveled. Therefore, the steel truss floor deck or steel truss floor deck system using the connection group of the utility model is convenient for scraping putty on the floor after the bottom template is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 A schematic diagram of the structure of a connection assembly provided in one embodiment of the utility model Figure 1 ;

[0047] Figure 2 A schematic diagram of the structure of a steel truss floor deck provided in one embodiment of the utility model;

[0048] Figure 3 A schematic diagram of the structure of a connection assembly provided in one embodiment of the utility model Figure 2 ;

[0049] Figure 4A schematic diagram of a connecting member provided in accordance with an embodiment of the present invention Figure 1 ;

[0050] Figure 5 A schematic diagram of a connecting member provided in accordance with an embodiment of the present invention Figure 2 ;

[0051] Figure 6 A schematic diagram of another connecting member provided in one embodiment of the utility model Figure 1 ;

[0052] Figure 7 A schematic diagram of another connecting member provided in one embodiment of the utility model Figure 2 ;

[0053] Figure 8 A schematic diagram of a structure of another connecting assembly provided in an embodiment of the utility model Figure 1 ;

[0054] Fig. 9 A structural schematic diagram of another connecting member provided in one embodiment of the utility model;

[0055] Fig.10 For application Figure 8 Structural diagram of steel truss floor deck;

[0056] Fig.11 A schematic structural diagram of the bottom of a steel bar truss floor deck provided in one embodiment of the utility model;

[0057] Fig.12 for Fig.11 Bottom schematic diagram of ;

[0058] Fig.13 For application Fig.11 A schematic diagram of the partial structure of the steel truss floor deck system assembled with the steel truss floor deck;

[0059] Fig.14 A schematic diagram of the partial structure of a steel truss floor deck system assembled with a steel truss floor deck using long supports;

[0060] Fig.15 A structural schematic diagram of a steel truss floor deck system provided in one embodiment of the utility model.

[0061] In the figure:

[0062] 10. Steel bar truss floor deck; 20. Support member; 21. Through hole; 22. Concave platform;

[0063] 100, steel bar truss; 110, upper chord steel bar; 120, lower chord steel bar; 130, web bar steel bar;

[0064] 200, connecting assembly; 210, connecting piece; 211, load-bearing side; 212, disassembly side; 213, clamping groove; 2131, entry portion; 2132, entry portion side wall; 2133, clamping groove bottom wall; 2134, clamping portion; 2135, clamping portion side wall; 2136, clamping portion bottom wall; 2137, limit block; 214, weight-reducing hole; 215, embedded groove; 2151, mounting platform; 2152, mounting hole;

[0065] 220, pad; 221, fitting side; 222, abutting side; 223, mounting through hole;

[0066] 300. Bottom template; 400. Fasteners. DETAILED DESCRIPTION

[0067] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0068] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0070] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0071] Embodiment 1:

[0072] This embodiment provides a connection assembly 200, such as Figure 1 As shown, it is used to connect the steel truss 100 with the bottom template 300 to form a steel truss floor deck 10. The connection assembly 200 includes a connection member 210. Along the first direction, the connection member 210 has a load-bearing side 211 and a disassembly side 212 that are arranged opposite to each other. The load-bearing side 211 has a clamping groove 213 that penetrates the connection member 210 along the second direction and opens toward the steel truss 100 along the first direction. The bottom end of the steel truss 100 can enter through the opening and be clamped in the clamping groove 213 to ensure the connection between the connection member 210 and the steel truss 100. The bottom template 300 is detachably connected to the disassembly side 212 to ensure that the bottom template 300 can be recycled and reused after the steel truss floor deck 10 using the connection assembly 200 is poured with concrete and the concrete solidifies into a floor slab, which not only saves costs but is also more environmentally friendly. It should be noted that the first direction and the second direction are for the position state of the connection assembly 200. When the connection assembly 200 is applied to the steel bar truss floor deck 10, the positional relationship between the steel bar truss 100 and the bottom template 300 is the first direction. For example, the steel bar truss 100 is located vertically above the bottom template 300, and the bottom template 300 is located vertically below the steel bar truss 100. Then the first direction is the vertical direction, and the second direction is the direction in which a single steel bar truss 100 is arranged along the bottom template 300. For example, when the bottom template 300 is parallel to the horizontal plane, a single steel bar truss 100 is arranged on the bottom template 300 along a direction parallel to the Y axis, and multiple steel bar trusses 100 are arranged at intervals along the direction of the X axis. At this time, the second direction is the Y axis direction, and the third direction is the X axis direction. The first direction, the second direction, and the third direction are three coordinate directions that are perpendicular to each other, and are the coordinates of the connection assembly 200 itself, which can be changed according to different position states of the connection assembly 200. For ease of understanding and description, the following description will take the first direction as the Z axis, the second direction as the Y axis, and the third direction as the Z axis as an example, and in the following description, the Z axis will refer to the first direction, the Y axis will refer to the second direction, and the X axis will refer to the third direction.

[0073] If the connector 210 directly contacts the bottom template 300, the contact between the connector 210 and the bottom template 300 will be exposed to the outside world after the bottom template 300 is removed, and it is easy to be affected by the outside world and corrode. For example, when the connector 210 is made of metal, it will rust when in contact with the outside world, which will affect its lifespan. In addition, the rust of the connector 210 will be transmitted to the steel truss 100 through the contact with the steel truss 100, thereby affecting the strength of the floor slab.

[0074] In order to solve the above problems, Figure 1 to Figure 3 As shown, in some embodiments of the present invention, the connection assembly 200 also includes a pad 220, which is located between the connector 210 and the bottom template 300 and is connected to the connector 210, so that the connector 210 is separated from the bottom template 300, ensuring that the connection does not contact the outside world after the bottom template 300 is removed, thereby preventing the connector 210 from being affected by the outside world. At this time, after the bottom template 300 is removed, the part of the pad 220 that abuts against the bottom template 300 will contact the outside world. In order to ensure that the pad 220 will not be affected by the outside world, the pad 220 is often made of a material that is highly resistant to corrosion to the outside world. For example, a plastic material with low cost and good performance, the pad 220 of the plastic material can be directly injection molded on the connector 210, which is not only simple to manufacture but also can ensure the reliability of the connection with the connector 210. However, in order to make the house more beautiful, the floor needs to be coated with putty in the later stage to level the floor surface and modify the defects on the outer surface of the floor. The plastic pad 220 is not conducive to the adhesion of putty. Therefore, when the floor is puttyed, the putty will fall off at the position of the pad 220.

[0075] In order to solve the above problems, Figure 1 to Figure 3 As shown, in some embodiments of the utility model, the pad 220 is made of a material that is easy for putty to adhere to, so that after the base plate is removed, the floor slab can be well adhered by the putty when scraping the putty, and there will be no local putty falling off, which is convenient for puttying, and then facilitates the leveling of the floor slab and subsequent beautification.

[0076] Specifically, the pad 220 can be made of concrete, and the concrete can be directly injected into the mold connected to the embedded groove 215, and the mold can be removed after the concrete solidifies, which is simple to operate and low in cost. Furthermore, the concrete used to make the pad 220 has the same composition as the concrete used for the floor slab, so that the material of the part of the floor slab that needs to be puttyed is uniform, which is not only easy for the putty to adhere, but also the adhesion of the putty is uniform, ensuring that the putty adheres more evenly to the floor slab.

[0077] Further, in an embodiment of the present utility model, if Figure 1 to Figure 3As shown, the pad 220 has an abutting side 222 and an engaging side 221 which are arranged oppositely along the Z-axis direction. The engaging side 221 can be embedded in the embedded groove 215 to ensure a reliable connection between the pad 220 and the connector 210. The abutting side 222 protrudes from the disassembly side 212 and abuts against the bottom template 300, thereby preventing the connector 210 from fitting with the bottom template 300, thereby preventing the connector 210 from leaking out when the bottom template is removed. In addition, since the abutting side 222 protrudes from the disassembly side 212, there is a certain distance between the disassembly side 212 on the periphery of the embedded groove 215 and the bottom template 300. When the concrete is poured into the steel truss floor deck 10, part of the concrete will flow into the outer surface of the disassembly side 212 to better cover the connector 210 and the pad 220, which can not only prevent the connector 210 from leaking out and reduce the risk of being corroded by the outside, but also increase the connection strength between the pad 220 and the pad 220 to prevent the pad 220 from falling out.

[0078] In some embodiments of the present invention, Figure 1 to Figure 3 As shown, on the plane where the second direction and the third direction are located, that is, the horizontal plane, the projected area of ​​the outer surface of the engaging side 221 of the pad 220 is smaller than the area of ​​the outer surface of the ground contact side, that is, the area of ​​the surface of the pad 220 abutting against the bottom template 300 is greater than or equal to the area of ​​the surface abutting against the connector 210, and the portion of the pad 220 between the engaging side 221 and the abutting side 222 is evenly transitioned, thereby not only ensuring the aesthetics while providing stable supporting strength to the connector 210, but also when the concrete completely wraps the pad 220, it can reflect that the connector 210 has been wrapped by the concrete, and the connector 210 will not leak out, thereby preventing the connector 210 from being corroded by the outside.

[0079] In order to facilitate the disassembly of the bottom template 300, the bottom template 300 and the connecting member 210 are usually connected by a fastener 400. The fastener 400 passes through the bottom template 300 and is screwed on the connecting member 210 to achieve the connection between the connecting member 210 and the bottom template 300. The fastener 400 can be a screw or a bolt. If the connection position of the fastener 400 on the connecting member 210 is located at the disassembly side 212 of the peripheral side of the embedded groove 215, since the connecting member 210 and the bottom template 300 are not in contact here, the connection force between the bottom template 300 and the connecting member 210 given by the fastener 400 needs to be transmitted through the pad 220 on the peripheral side, which will reduce the connection strength between the connecting member 210 and the bottom template 300. In addition, after the concrete is poured, the fastener 400 between the connecting member 210 and the bottom template 300 will be covered by the concrete. After the concrete solidifies into a floor slab, the disassembly of the fastener 400 will be very difficult and the disassembly efficiency will be low.

[0080] In order to solve the above problems, Figure 1 to Figure 7As shown, in some embodiments of the present invention, a mounting platform 2151 is partially extended toward the bottom template 300 from the bottom wall of the embedded groove 215, and a mounting hole 2152 is provided in the center of the mounting platform 2151. The pad 220 is covered on the outer periphery of the mounting platform 2151, and the pad 220 is provided with a mounting through hole 223 coaxially connected with the mounting hole 2152, and the mounting through hole 223 passes through the pad 220. The fastener 400 passes through the bottom template 300 and the mounting through hole 223 in sequence and is screwed into the mounting platform 2151. When the steel bar truss floor deck 10 is poured with concrete, the pad 220 and the bottom template 300 are well fitted under the action of the fastener 400, and there is no gap, so that the concrete will not contact the fastener 400, and the floor slab will not produce disassembly resistance to the fastener 400, which is convenient for disassembly of the fastener 400 and improves disassembly efficiency. In addition, the mounting platform 2151 is covered by the cushion block 220 , thereby increasing the contact area between the cushion block 220 and the connecting member 210 , increasing the connection strength between the cushion block 220 and the connecting member 210 , and preventing the cushion block 220 and the connecting member 210 from being separated.

[0081] Furthermore, if Figure 4 The mounting platform 2151 has reinforcing ribs connected to the bottom wall of the embedded groove 215 on the circumference, which can not only increase the strength of the mounting platform 2151, but also further increase the connection strength between the cushion block 220 and the connecting piece 210.

[0082] In order to ensure that the force applied by the fastener 400 to the cushion block 220 and the connecting member 210 can be evenly distributed on the cushion block 220 and the bottom wall of the embedded groove 215, as shown in FIG. Figures 4 to 7 As shown, the mounting platform 2151 is located at the center of the bottom wall of the inner shallow groove. At this time, the mounting hole 223 is located at the central axis of the pad 220, thereby ensuring that there is sufficient abutment area between the pad 220 and the bottom template 300 in the circumferential direction of the fastener 400 to avoid entry when the concrete is poured or has not yet solidified.

[0083] Further, in some embodiments of the present invention, Figures 4 to 7 As shown, the height of the mounting platform 2151 is higher than the height of the embedded groove 215, that is, the end face of the mounting platform 2151 protrudes from the disassembly side 212, thereby providing better skeleton support for the pad 220 during pouring and solidification, and also making the distance between the connecting piece 210 and the bottom template 300 closer, which is more conducive to the connection strength between the bottom template 300 and the connecting piece 210.

[0084] In order to ensure the stability of the connection between the connecting member 210 and the bottom template 300, in some embodiments of the present utility model, such as Figures 4 to 7As shown, both ends of the disassembly side 212 along the Y-axis direction correspond to an embedded groove 215, and the pads 220 are arranged one by one in correspondence with the embedded grooves 215. At this time, both ends of the connector 210 in the Y-axis direction have pads 220 that abut against the bottom template 300, and the two pads 220 restrict each other to limit the degree of freedom of rotation of the connector 210 around the X-axis direction, thereby ensuring that the connector 210 will not be distorted relative to the bottom template 300.

[0085] Further, in some embodiments of the present invention, Figure 4-5 As shown, both ends of the disassembly side 212 along the Y-axis direction are provided with concave platforms 22 to form an embedded groove 215. At this time, the bottom wall of the embedded groove 215 is the step surface of the concave platform 22, and the center of the two step surfaces is relatively a convex platform, and the two side walls of the convex platform along the Y-axis direction are the side walls of the embedded groove 215. At this time, the surface area of ​​the abutting side 222 of the pad 220 can be greater than or equal to the area of ​​the bottom of the embedded groove 215, so that the pad 220 can not only provide stable support for the connector 210, but also when the steel truss floor slab 10 is poured with concrete and not solidified, the concrete is not fully circulated, resulting in the partial inability to completely cover the connector 210. When the concrete solidifies into a floor slab, the connector 210 can be completely blocked to prevent the connector 210 from contacting the outside world. Similarly, the area of ​​the abutting side 222 of the pad 220 is greater than the area of ​​the interlocking side 221, which also has the above-mentioned effect.

[0086] In other embodiments of the present invention, Figure 6-7 On the basis of the above structure, the groove bottom wall of the embedded groove 215 has embedded groove side walls on the other three sides in addition to the existing embedded groove side walls, so that the embedded groove 215 is box-shaped, and the fitting side 221 of the cushion block 220 is accommodated in the embedded groove 215. In order to ensure stable support, the other three embedded groove walls can protrude from the side walls of the connector 210.

[0087] Of course, in some other embodiments of the present invention, Figure 8 to Figure 10 As shown, the groove wall of the embedded groove 215 is a hollow cylindrical shape to surround the cylindrical embedded groove 215. Correspondingly, the pad 220 is also cylindrical, and the groove bottom wall of the embedded groove 215 protrudes from the side wall of the connecting member 210, thereby obtaining stable support.

[0088] like Figure 2 or Fig.10As shown, the steel truss 100 generally includes an upper chord steel bar 110, two lower chord steel bars 120 located on both sides below the upper chord steel bar 110, and a web steel bar 130 respectively connected to the upper chord steel bar 110 and the lower chord steel bar 120 at both ends. During the process of pouring concrete on the steel truss floor slab 10, not only a vertical force but also a lateral force is applied to the steel truss 100. When the lateral force is transmitted to the bottom formwork 300 through the connecting assembly 200, the bottom formwork 300 is stretched and deformed, thereby reducing the supporting strength of the bottom formwork 300 for the steel truss 100, affecting the supporting effect of the bottom formwork 300.

[0089] In order to solve the above problems, Figures 1 to 9As shown, the clamping groove 213 includes an entry portion 2131 and a clamping portion 2134, wherein the entry portion 2131 penetrates the load-bearing side 211 along one side of the Z-axis direction and communicates with the outside, and the bottom wall of the entry portion 2131 is the bottom wall of the clamping groove 213, so the other side of the entry portion 2131 is communicated with the clamping groove bottom wall 2133 to provide an entry channel for the lower chord steel bar 120. In addition, in order to facilitate the bottom end of the steel bar truss floor deck 10 to enter, the entry portion side walls 2132 at both ends of the entry portion 2131 along the X-axis direction are tilted in opposite directions along the positive direction of the Z-axis, so that the entry portion 2131 is in an inverted trapezoidal shape, at which time the size of the opening of the entry portion 2131 is larger than the size of the bottom of the entry portion 2131, which facilitates the bottom end of the steel bar truss floor deck 10 to enter, and the inclined entry portion side walls 2132 can guide the steel bar truss floor deck 10 under the action of external force to enter the bottom wall of the entry portion 2131. Both ends of the bottom wall 2133 of the clamping groove along the X-axis direction have clamping parts 2134, which are connected to the entry part 2131 and are formed by two entry part side walls 2132 of the entry part 2131 being opposite to each other and concave inwardly. The bottom end of the steel bar truss 100 is accommodated in the clamping part 2134, that is, the two lower chord steel bars 120 of the steel bar truss 100 are accommodated in the clamping parts 2134 at the corresponding ends. During installation, a force acting in opposite directions can be applied to the two lower chord steel bars 120 of the steel bar truss 100, so that the bottom end of the steel bar truss 100 is elastically deformed until the distance between the two lower chord steel bars 120 is reduced to be smaller than the opening of the clamping groove 213, and the force is removed when the two lower chord steel bars 120 enter the bottom of the clamping groove 213 through the opening. At this time, under the force of elastic deformation, the two lower chord steel bars 120 are rebounded into the clamping parts 2134 at the corresponding ends to achieve clamping. In order to increase the reliability of the clamping between the connector 210 and the steel truss 100, the distance between the bottom walls of the two clamping grooves 213 facing each other along the X direction is smaller than the distance between the two lower chord steel bars 120 of the steel truss 100 in the natural state. Therefore, when the steel truss 100 is clamped in the clamping groove 213, there is an interaction force between the bottom wall of the clamping portion 2134 along the X direction and the lower chord, thereby preventing the two lower chord steel bars 120 of the steel truss 100 from coming out of the clamping groove 213. When the steel truss floor deck 10 is poured with concrete, when the concrete exerts a lateral force on the steel truss 100, the two lower chord steel bars 120 of the steel truss 100 have a tendency to move in the opposite direction and form two outward thrusts of the same size and opposite directions, but for each connector 210, the two thrusts of the same size and opposite directions acting on it at the same time can offset each other. In fact, the connector 210 provided in the embodiment of the utility model has a self-balancing effect. The connector 210 balances the two outward thrusts of the two lower chord steel bars 120 of the steel truss 100. Therefore, the two thrusts will not be transmitted to the bottom template 300 through the connector 210, thereby avoiding tensile deformation of the bottom template 300 and affecting the supporting effect.In addition, it can also avoid the phenomenon that the fastener 400 connecting the bottom template 300 and the connecting member 210 causes difficulty in subsequent disassembly due to the shear force.

[0090] It is understandable that after the lower chord steel bar 120 of the steel truss 100 is clamped in the clamping groove 213 of the connector 210, some unexpected situations may occur, causing the steel truss 100 to be subjected to external force, resulting in the steel truss 100 being separated from the clamping groove 213. In order to avoid the above phenomenon, Figures 1 to 9 As shown, in some embodiments of the present invention, two opposite clamping part side walls 2135 of the clamping part 2134 along the Z-axis direction are provided with a limit block 2137 at one end close to the entry part 2131 toward the clamping part 2134, and the bottom end of the steel bar truss 100 is located between the clamping part bottom wall 2136 along the X-direction and the limit block 2137. After the lower chord steel bar 120 enters into the clamping part 2134, the limit block 2137 can prevent the lower spiral steel bar from detaching from the clamping part 2134, thereby ensuring the stability of the connection between the steel bar truss 100 and the connecting piece 210.

[0091] Further, it can be known from the above that the lower chord steel bar 120 will be blocked by the stopper 2137 when it is separated from the clamping portion 2134. Similarly, when the steel bar truss 100 is installed on the connecting member 210, the lower chord steel bar 120 will also be blocked by the stopper 2137 when it enters the clamping portion 2134, increasing the difficulty of entering the clamping portion 2134. In order to solve the above problems, in some embodiments of the utility model, the outer surface of the stopper 2137 is a smooth curved surface. The friction of the smooth curved surface is smaller than that of the sharp corners, thereby reducing the difficulty of the lower chord steel bar 120 entering the clamping portion 2134. The smooth curved surface can be an irregular curved surface with a radius gradually increasing from the entry portion 2131 to the clamping portion 2134, or it can be a semicircular curved surface. The utility model embodiment is not specifically limited here, as long as it can facilitate the lower chord steel bar 120 to enter the clamping portion 2134. In other embodiments of the present invention, the end of the stopper 2137 facing the entry portion 2131 has a guide surface, and the guide surface can guide the bottom of the steel bar truss 100 to enter the clamping portion 2134, thereby reducing the difficulty of the lower chord steel bar 120 entering the clamping groove 213. Specifically, the guide surface is along the Z-axis direction, and the upper end of the guide surface is inclined from the entry portion 2131 to the clamping portion 2134. When the lower chord steel bar 120 contacts the guide surface, it will slide along the guide surface under the action of external force until it enters the clamping groove 213. The structure is simple and easy to manufacture.

[0092] Furthermore, in some embodiments of the present invention, in order to further facilitate the lower chord steel bar 120 to enter the clamping portion 2134, the connector 210 is integrally formed of a plastic material. The connector 210 made of plastic material has a greater elastic deformation capability while ensuring the clamping strength. When the lower chord steel bar 120 enters the clamping portion 2134, the elastic deformation of the connector 210 allows the lower chord steel bar to pass through, thereby reducing the difficulty of installation and improving the assembly efficiency. In addition, the connector 210 made of plastic material is also convenient for mass production, saving manufacturing costs, reducing manufacturing difficulty, and improving the manufacturing cycle.

[0093] In some embodiments of the present invention, Figures 1 to 9 As shown, there are multiple weight-reducing holes 214 between the bottom wall 2133 of the clamping groove and the disassembly side 212, and between the bottom wall of the embedded groove 215 in the circumferential direction of the mounting platform 2151 and the load-bearing side 211. Not only can the weight be reduced, the material consumption of a single connector 210 can be reduced, and the connectors 210 with weight-reducing holes 214 made of the same material can be manufactured in greater quantities, which is conducive to reducing costs. In addition, the existence of the weight-reducing holes 214 facilitates the concrete to fill the weight-reducing holes 214 when the steel truss floor slab 10 is poured with concrete, and it is not easy to fall off the floor slab after solidifying into the floor slab, thereby increasing the connection strength and reliability between the connector 210 and the floor slab.

[0094] It should be noted that the above description of the clamping groove 213, the embedded groove 215 and the pad 220 of the connector 210 are only some embodiments of the present invention. In other embodiments, the shapes of the clamping groove 213 and the embedded groove 215 can also be other shapes, as long as the clamping structure and strength of the two lower chord steel bars 120 of the steel truss 100 and the pad 220 can be embedded in the embedded groove 215. The present invention does not specifically limit the shapes of the clamping groove 213 and the embedded groove 215. The shape and number of the weight-reducing holes 214 and whether they are through can be set according to actual conditions. The present invention does not make specific limitations. As long as the function and effect are the same as those of the weight-reducing holes 214 of the present invention, they will fall within the scope of the present invention.

[0095] Embodiment 2:

[0096] like Figure 2 or Fig.10As shown, this embodiment provides a steel bar truss floor deck 10, which includes a steel bar truss 100, a bottom template 300, and a connection assembly 200 as provided in the first embodiment, the bottom end of the steel bar truss 100 is clamped in the clamping groove 213, and the bottom template 300 is connected to the connection assembly 200 through a fastener 400. Since the connection assembly 200 includes a connection member 210 and a cushion block 220, the cushion block 220 is located on the disassembly side 212 of the connection member 210 and protrudes from the disassembly side 212, when the connection assembly 200 abuts against the bottom template 300, the side of the cushion block 220 away from the connection member 210 abuts against the bottom template 300, and the connection member 210 does not contact the bottom template 300. When concrete is poured into the steel truss floor slab 10 and solidified into a floor slab, the bottom formwork 300 is removed, and what is exposed to the outside at the connection component 200 is the pad 220 instead of the connector 210. This not only prevents the connector 210 from being corroded by the outside world, but also because putty is easy to adhere to the pad 220, after the floor slab is puttyed, there will be no local putty shedding at the connection component 200, resulting in the inability to level the floor slab, thereby ensuring the aesthetics of the floor slab.

[0097] Specifically, if Figure 2 or Fig.10 As shown, a plurality of steel bar trusses 100 are evenly spaced and arranged on the bottom template 300, and the steel bar trusses 100 include: an upper chord steel bar 110, two lower chord steel bars 120 located on both sides below the upper chord steel bar 110, and a web bar 130 connected to the upper chord steel bar 110 and the lower chord steel bar 120 at both ends. According to different requirements, steel bar trusses 100 of different specifications can be selected, and the specifications of the upper chord steel bar 110, the lower chord steel bar 120 and the web bar 130 of the steel bar trusses 100 of different specifications can also be different. For example, the diameter range of the lower chord steel bar 120 can be selected according to different requirements. Different sizes in the range of 6-14mm. The types of the upper chord steel bar 110, the lower chord steel bar 120 and the web bar 130 of the steel bar trusses 100 of different specifications can also be different, and the types of the upper chord steel bar 110, the lower chord steel bar 120 and the web bar 130 of the same steel bar truss 100 can also be different. For example, the steel bar can be a plain round steel bar, a ribbed steel bar, etc.

[0098] Each steel bar truss 100 corresponds to a plurality of connection components 200, such as Figure 2 or Fig.10 As shown, a plurality of connection assemblies 200 are evenly spaced along the axial direction of the lower chord steel bar 120, and the lower chord steel bar 120 is clamped in the clamping groove 213. Thus, the bottom template 300 can provide uniform and strong support for the poured concrete.

[0099] Further, in some embodiments of the present invention, Fig.11As shown, the steel bar truss floor deck 10 also includes fasteners 400, and fasteners 400 are provided at both ends of the clamping groove 213 along the X-axis direction, and the fasteners 400 can connect the bottom template 300 with the connecting assembly 200. The fasteners 400 are arranged at both ends of the clamping groove 213 along the X-axis direction, which is equivalent to the steel bar truss 100 being located between the two fasteners 400, thereby ensuring the stable support of the steel bar truss 100, and will not be skewed relative to the bottom template 300. The fasteners 400 can be screws, bolts, etc., as long as they can achieve the connection between the bottom template 300 and the connecting member 210, and can also be removed from the bottom template 300, and this embodiment does not make specific restrictions.

[0100] The material of the bottom template 300 of the embodiment of the utility model can include but is not limited to galvanized sheet, galvanized alloy sheet, patterned steel sheet, bamboo plywood, wooden template, wood plastic board, injection molding board, aluminum alloy template, corrugated steel sheet, fiber cement board, cement pressure board. Among the above-mentioned materials of the bottom template 300, the material thickness of the metal material is 1mm-2mm, and the material thickness of the non-metal material is 15mm-25mm to ensure the strength of the support.

[0101] The following is an introduction to the manufacturing and use process of the steel truss floor deck 10 provided in the embodiment of the utility model:

[0102] S10, using steel bars to build a framework, and forming a steel bar truss 100 by welding.

[0103] S20, the bottom mold is processed and formed, and mechanical equipment is used to automatically drill holes, and the connection component 200 is connected to the bottom mold after the holes are drilled through the fastener 400.

[0104] S30, compressing the processed steel truss 100 by external force to narrow the distance between the two lower chord steel bars 120 until they can enter the entry part 2131 of the clamping groove 213, and the two lower chord steel bars 120 of the steel truss 100 are automatically clamped in the clamping part 2134 of the clamping groove 213 by their own rebound, and the detachable bottom mode steel truss floor deck 10 is completed.

[0105] S40, laying the detachable bottom mode steel truss floor deck 10 in the designated area, and pouring concrete. After pouring, the steel truss 100 provides unsupported stiffness for the bottom form, and the threaded connection between the fastener 400 and the connection assembly 200 bears the concrete deadweight and construction load.

[0106] S50, after the concrete solidifies to the required level, the fasteners 400 on the bottom template 300 are disassembled and the bottom template 300 is removed.

[0107] Embodiment three:

[0108] This embodiment provides a steel truss floor decking system 10, such as Figure 11 to Figure 13 As shown, the steel truss floor deck 10 system can be flexibly adjusted according to the required size of the floor to adapt to the manufacture of floors of different sizes. Specifically, the steel truss floor deck 10 system includes a plurality of steel truss floor decks 10 arranged in sequence, the steel truss floor deck 10 is the steel truss floor deck 10 provided in Example 2, and the number of steel truss floor decks 10 can be adjusted according to the actual size of the floor.

[0109] After the steel truss floor decking 10 is butt-jointed to the same size as the floor slab, the steel truss floor decking 10 system will be erected on the floor slab using a scaffolding. Since there is no constraint between two adjacent bottom formworks 300, adjusting the relative position close to the scaffolding will lead to a large error, and part of the floor slab between two adjacent steel truss floor decking slabs 10 will be uneven, and it will be difficult to scrape putty for leveling later.

[0110] In order to solve the above problems, Figure 12 to Figure 15 As shown, in some embodiments of the present invention, the steel bar truss floor deck 10 further includes a support member 20, which is located on the side of the bottom template 300 away from the steel bar truss 100 and at the joint between two adjacent bottom templates 300, and the support member 20 is respectively connected to the two adjacent bottom templates 300. Thus, the two adjacent bottom templates 300 are mutually constrained to ensure that the two adjacent bottom templates 300 are located on the same horizontal plane, thereby ensuring the flatness of the floor surface and facilitating the scraping of putty.

[0111] Further, in some embodiments of the present invention, Figure 12 to Figure 14 As shown, a plurality of support members 20 are arranged at intervals along the butt joints, and the support members 20 at two adjacent butt joints are arranged in a staggered manner. This can also be called a staggered arrangement, which can not only avoid transitional support, but also enable the support members 20 to be pre-installed on the bottom template 300 before the steel truss floor deck 10 leaves the factory. When a plurality of steel truss floor decks 10 are assembled into a steel truss floor deck 10 system, the upstream bottom template 300 just reserves a position for the support member 20 pre-installed on the downstream bottom template 300. At this time, it is only necessary to install the support member 20 on the upstream bottom template 300 away from the side of the downstream bottom template 300, which can not only speed up the construction speed on site, but also facilitate the assembly of the steel truss floor deck 10 system on site.

[0112] In order to make full use of the original parts on the steel truss floor deck 10, such as Figure 8 to Figure 14As shown, the number of parts is reduced and the cost is saved. In some embodiments of the utility model, a plurality of through holes 21 are arranged at intervals on the support member 20. The through holes 21 are coaxial with the fasteners 400 at the corresponding positions. The fasteners 400 are passed through the through holes 21 to connect the support member 20, the bottom template 300 and the connecting assembly 200. When a plurality of steel truss floor decks 10 are assembled into a steel truss floor deck 10 system, the fasteners 400 of the upstream steel truss floor deck 10 at the corresponding position of the support member 20 on the downstream steel truss floor deck 10 can be removed, and then the support member 20, the bottom template 300 and the connecting member 210 can be connected by using the fasteners 400.

[0113] The steel truss floor decking 10 system is assumed to be between two beams that need to build a floor slab. Therefore, the steel truss floor decking 10 system needs to be supported by a supporting device at a preset position of the floor slab. In addition, the steel truss floor decking 10 system needs to bear the weight of concrete. The strength of the support 20 between two adjacent steel truss floor decking slabs 10 is far from enough. Therefore, a scaffolding is often used as a supporting device, and the scaffolding can support each steel truss floor decking slab 10. However, the scaffolding needs to be built on site according to the size of the floor slab, and the weight of the steel pipe assembled into the scaffolding is relatively heavy, so the assembly and disassembly of the scaffolding takes a lot of time and effort. The aluminum formwork support frame is light and easy to assemble. The erection efficiency can be increased by 30% to 40% compared with the scaffolding, saving time and effort. However, the aluminum formwork support requires that the surface of the supported object is relatively flat. Since when the fastener 400 is a screw, the nut will protrude from the bottom surface of the bottom template 300, it does not meet the support conditions of the aluminum formwork support frame.

[0114] In order to solve the above problems, in some embodiments of the present invention, Fig. 9 As shown, the side of the mounting hole 223 on the support member 20 away from the bottom template 300 has a recessed platform 22, and the side of the fastener 400 away from the connecting component abuts against the recessed platform 22 and is completely accommodated in the recessed platform 22. Therefore, the side of the support member 20 away from the bottom template 300 is flat and can be used as a supporting point of the aluminum mold support frame, and the aluminum mold support frame can be used to replace the traditional scaffolding as a supporting device.

[0115] In order to facilitate the production of the support member 20, the support member 20 is die-casted from a plastic material, which can be nylon or PP plastic to ensure sufficient support strength.

[0116] It is understandable that if Fig.13 and Fig.14As shown, since buildings are divided into two types, concrete buildings and steel structure buildings, when the steel truss floor decking system 10 provided by the embodiment of the utility model is applied to the floor construction in the concrete building, due to the high strength of the concrete beams on both sides of the preset floor, the length of the support frame can be shortened to only be located at the joint of the two adjacent bottom templates 300, and it is not necessary to abut with the downstream support frame to penetrate the entire bottom template 300. Thus, while ensuring the support strength, the amount of materials is reduced and the cost is reduced. When the steel truss floor decking system 10 provided by the embodiment of the utility model is applied to the floor construction in the steel structure building, since the support strength of the two steel column beams of the steel structure is not as high as the strength of the concrete beam, the length of the support frame at this time is to be able to penetrate the bottom template 300 after abutting with the downstream support frame to increase the support strength. Of course, the length of the support frame can be selected according to the actual engineering state. The above is only an example. Whether the length of the support frame is long or short, as long as the overall structure is the same as that of this embodiment, it will be within the protection scope of the utility model.

[0117] The following is a description of the manufacturing process of the steel truss floor deck 10 system provided by the embodiment of the utility model:

[0118] S01, remove the fastener 400 on the upstream steel bar truss 100 at the corresponding position of the support member 20 connected to the downstream steel bar truss floor deck 10;

[0119] S02, butting the downstream steel truss floor deck 10 with the upstream steel truss floor deck 10;

[0120] S03, passing the removed fasteners 400 through the bottom template 300 of the support member 20 in sequence and then connecting them to the connecting member 210 to achieve the connection between two adjacent steel truss floor decks 10;

[0121] S04. Repeat the above steps until the steel truss floor decking slab 10 system is completed.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A connection assembly, characterized in that: include: The connecting member (210) has a load-bearing side (211) and a disassembly side (212) arranged opposite to each other along a first direction, the load-bearing side (211) has a clamping groove (213) penetrating the connecting member (210) along a second direction and opening toward the steel bar truss (100) along the first direction, the bottom end of the steel bar truss (100) is clamped in the clamping groove (213), the bottom template (300) is detachably connected to the disassembly side (212), the disassembly side (212) has an embedded groove (215) opening toward the bottom template (300), and the third direction, the second direction and the first direction are perpendicular to each other. as well as The pad (220) has an abutting side (222) and an engaging side (221) arranged opposite to each other along the first direction; the abutting side (222) protrudes from the disassembly side (212) and abuts against the bottom template (300); the engaging side (221) is embedded in the embedded groove (215); and putty can adhere to the pad (220).

2. The connection assembly according to claim 1, characterized in that: A mounting platform (2151) is partially extended from the bottom wall of the embedded groove (215) toward the bottom template (300), and a mounting hole (2152) is provided in the center of the mounting platform (2151); The cushion block (220) is coated on the outer periphery of the mounting platform (2151), and the cushion block (220) has a mounting through hole (223) coaxially connected to the mounting hole (2152), and the mounting through hole (223) passes through the cushion block (220).

3. The connection assembly according to claim 2, characterized in that: A plurality of weight-reducing holes (214) are provided between the bottom wall (2133) of the clamping groove and the disassembly side (212) and between the bottom wall of the embedded groove (215) in the circumferential direction of the mounting platform (2151) and the load-bearing side (211).

4. The connection assembly according to claim 1, characterized in that: On the plane where the second direction and the third direction are located, the projected area of ​​the outer surface of the abutting side (222) is not less than the projected area of ​​the outer surface of the mating side (221), and the portion of the cushion block (220) between the mating side (221) and the abutting side (222) is uniformly transitioned.

5. The connection assembly according to claim 1, characterized in that: Both ends of the disassembly side (212) along the third direction correspond to an embedded groove (215), and the cushion blocks (220) are arranged in a one-to-one correspondence with the embedded grooves (215).

6. The connection assembly according to claim 1, characterized in that: The cushion block (220) is formed by solidifying concrete.

7. The connection assembly according to any one of claims 1 to 6, characterized in that: The clamping slot (213) comprises: An entry portion (2131), along the first direction, with one side penetrating through the bearing side (211) to communicate with the outside, and the other side communicating with the bottom wall (2133) of the clamping groove; A clamping portion (2134), both ends of the clamping groove bottom wall (2133) along the third direction have the clamping portion (2134), the clamping portion (2134) is connected to the entry portion (2131), and is formed by two entry portion side walls (2132) of the entry portion (2131) that are opposite to each other and are concave inwardly facing each other along the third direction, and the bottom end of the steel bar truss (100) is accommodated in the clamping portion (2134).

8. The connection assembly according to claim 7, characterized in that: The two opposite side walls of the clamping part (2134) along the first direction are provided with a limit block (2137) at one end close to the entry part (2131) toward the clamping part (2134), and the bottom end of the steel bar truss (100) is located between the bottom wall (2136) of the clamping part along the three directions and the limit block (2137).

9. The connection assembly according to claim 8, characterized in that: The outer surface of the limit block (2137) is a smooth curved surface; or One end of the limit block (2137) facing the entry portion (2131) has a guide surface, and the guide surface can guide the bottom of the steel bar truss (100) to enter the clamping portion (2134).

10. The connection assembly according to claim 7, characterized in that: The two opposite entrance side walls (2132) are inclined away from each other along the positive direction of the first direction.

11. The connection assembly according to any one of claims 8 to 10, characterized in that: The connecting piece (210) is integrally formed from a plastic material.

12. A steel bar truss floor deck, characterized in that: include: Steel truss (100); A bottom template (300); and The connection assembly according to any one of claims 1 to 11, wherein the bottom end of the steel bar truss (100) is clamped in the clamping groove (213), and the bottom template (300) is connected to the connection assembly via a fastener (400).

13. The steel bar truss floor deck according to claim 12, characterized in that: A plurality of the steel bar trusses (100) are evenly spaced and arranged on the bottom template (300); The steel bar truss (100) comprises: An upper chord steel bar (110), two lower chord steel bars (120) located on both sides below the upper chord steel bar (110), and a web member steel bar (130) having two ends respectively connected to the upper chord steel bar (110) and the lower chord steel bar (120); Each of the steel bar trusses (100) corresponds to a plurality of the connection components, and the plurality of connection components are evenly spaced along the axial direction of the lower chord steel bars (120); The lower chord steel bar (120) is clamped in the clamping groove (213).

14. The steel bar truss floor deck according to claim 12, characterized in that: The steel bar truss floor deck also includes: A fastener (400) is provided at both ends of the clamping groove (213) along the third direction, and the fastener (400) can connect the bottom template (300) with the connecting assembly.

15. The steel bar truss floor deck according to any one of claims 12 to 14, characterized in that: The bottom template (300) can be one of galvanized sheet, galvanized alloy sheet, patterned steel sheet, bamboo plywood, wooden template, wood plastic board, injection molded board, aluminum alloy template, corrugated steel sheet, fiber cement board, and cement pressure board. The thickness of the bottom template (300) made of metal material is 1 mm-2 mm, and the thickness of the bottom template (300) made of non-metal material is 15 mm-25 mm.

16. A steel truss floor deck system, characterized in that: include: A plurality of steel truss floor decks arranged in sequence, wherein the steel truss floor deck is the steel truss floor deck according to any one of claims 12 to 15; as well as The support member (20) is located on a side of the bottom template (300) away from the steel bar truss (100) and at a joint between two adjacent bottom templates (300). The support member (20) is respectively connected to the two adjacent bottom templates (300).

17. The steel bar truss floor deck system according to claim 16, characterized in that: A plurality of the support members (20) are arranged at intervals at the butt joint, and the support members (20) at two adjacent butt joints are arranged in a staggered manner.

18. The steel bar truss floor deck system according to claim 16, characterized in that: The support member (20) is provided with a plurality of through holes (21) at intervals, and the through holes (21) are coaxial with the fasteners (400) at corresponding positions; The fastener (400) is inserted into the through hole (21) to connect the support member (20), the bottom template (300) and the connection assembly.

19. The steel bar truss floor deck system according to claim 18, characterized in that: The through hole (21) has a recessed platform (22) on the side facing away from the bottom template (300), and the fastener (400) abuts against the recessed platform (22) on the side facing away from the connection assembly and is completely accommodated in the recessed platform (22).

20. The steel bar truss floor deck system according to any one of claims 16 to 19, characterized in that: The support member (20) is made of plastic material.

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