CN216075813U - Bottom-wrapping steel bar truss assembly and steel bar truss floor bearing plate - Google Patents

Abstract

The embodiment of the utility model provides a bottom-wrapped steel bar truss assembly and a steel bar truss floor bearing plate, wherein the bottom-wrapped steel bar truss assembly comprises: the steel bar truss and connecting components are arranged in the axial direction of the lower chord steel bars, and a plurality of connecting components are arranged at intervals on each lower chord steel bar; wherein, coupling assembling includes: the connecting piece, the connecting nut and the supporting seat; the connecting piece is provided with a first surface and a second surface which are arranged in an opposite way, and is provided with a mounting hole penetrating through the first surface and the second surface, and the connecting piece is connected with the lower chord steel bar; the connecting nut is connected with the first surface, and a screw hole of the connecting nut is communicated with the mounting hole; the supporting seat is connected with the second face and at least wraps the area where the mounting hole is located, the supporting seat is provided with a connecting hole, and the connecting hole is communicated with the mounting hole. The connecting assembly can be connected to the steel bar truss in advance, construction of the bottom steel bar truss assembly is facilitated, and meanwhile storage and transportation of the bottom steel bar truss assembly cannot be influenced.

Description

Bottom-wrapping steel bar truss assembly and steel bar truss floor bearing plate

Technical Field

The embodiment of the utility model relates to the technical field of buildings, in particular to a bottom-wrapped steel bar truss assembly and a steel bar truss floor bearing plate.

Background

With the continuous development of the building industry, the detachable steel bar truss floor deck is gradually applied to various buildings, such as residential buildings. Detachable steel bar truss building carrier plate has accelerated the construction progress, has reduced the construction and has used interim support, can realize quick installation, template reuse.

In the prior art, a steel bar truss of a detachable steel bar truss floor support plate is connected with a bottom die through a connecting piece, and the connecting piece is connected with the bottom die through a screw. However, the existing connecting pieces are mostly made of plastic materials, when concrete is poured on the bottom die, the steel bar truss and the bottom die plate can slide due to the impact force and the gravity action of the concrete, so that the deformation of the bottom die plate is increased, and the flatness of the bottom of the floor slab is affected.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, embodiments of the present invention are provided to provide a bottom-covered steel bar truss assembly and a steel bar truss floor deck that solve the above problems.

The embodiment of the utility model provides a bottom-wrapped steel bar truss assembly, which comprises:

the steel bar truss comprises an upper chord steel bar, two lower chord steel bars positioned on two sides below the upper chord steel bar and web member steel bars, wherein two ends of the web member steel bars are fixedly connected with the upper chord steel bar and the lower chord steel bar respectively;

the connecting assemblies are arranged along the axial direction of the lower chord steel bars, and a plurality of connecting assemblies are arranged at intervals on each lower chord steel bar; wherein the content of the first and second substances,

the connecting assembly includes: the connecting piece, the connecting nut and the supporting seat;

the connecting piece is provided with a first surface and a second surface which are arranged in an opposite way, and is provided with a mounting hole penetrating through the first surface and the second surface, and the connecting piece is connected with the lower chord steel bar;

the connecting nut is connected with the first surface, and a screw hole of the connecting nut is communicated with the mounting hole;

the supporting seat is connected with the second surface and at least wraps the area where the mounting hole is located, and the supporting seat is provided with a connecting hole which is communicated with the mounting hole.

Optionally, the connecting piece is made of a metal material, and the connecting nut, the steel bar truss and the connecting piece are welded and fixed.

Optionally, the number of the mounting holes is multiple, and the multiple mounting holes are arranged at intervals along the length direction of the connecting piece;

at least one part of the area corresponding to the mounting hole is provided with the connecting nut and the supporting seat.

Optionally, the connecting piece includes a bottom plate and two side plates connected to two opposite sides of the bottom plate, and the bottom plate and the two side plates form a U-shaped groove structure;

one surface of the bottom plate, which is positioned in the U-shaped groove structure, is the first surface, the mounting hole is formed in the bottom plate, and the connecting nut is connected with the bottom plate;

the supporting seat covers at least partial areas of the bottom plate and the side plates.

Optionally, the included angle between the bottom plate and the side plate may be an acute angle, a right angle or an obtuse angle.

Optionally, at least the side plate is provided with a convex-concave structure, and the supporting seat is connected with the convex-concave structure.

Optionally, the convex-concave structure is arranged in the area corresponding to the support seat; or the convex-concave structure extends along the length direction of the connecting piece and penetrates through the supporting seat.

Optionally, one end of each of the two side plates, which is far away from the bottom plate, is provided with a folded edge.

Optionally, the included angle between the side plate and the folded edge may be an acute angle, a right angle or an obtuse angle.

Optionally, a support boss is arranged on the bottom of the support seat and located at the periphery of the connecting hole, and the area of the support boss is smaller than that of the bottom of the support seat.

Optionally, the support seat is made of a plastic material and is connected with the connecting piece through an injection molding process.

Correspondingly, the embodiment of the utility model also provides a steel bar truss floor deck, which comprises:

a floor deck plate body;

the steel bar truss assembly comprises steel bar trusses and connecting assemblies; wherein the content of the first and second substances,

the steel bar truss comprises an upper chord steel bar, two lower chord steel bars positioned at two sides below the upper chord steel bar and web member steel bars of which two ends are fixedly connected with the upper chord steel bar and the lower chord steel bar respectively;

along the axial direction of the lower chord steel bars, a plurality of connecting assemblies are arranged at intervals on each lower chord steel bar;

the connection assembly, comprising: the connecting piece, the connecting nut and the supporting seat;

the connecting piece is provided with a first surface and a second surface which are arranged in an opposite way, and is provided with a mounting hole which penetrates through the first surface and the second surface; the connecting piece is connected with the lower chord steel bar; the connecting nut is connected with the connecting piece, and a screw hole of the connecting nut is communicated with the mounting hole; the supporting seat is connected with the second surface and at least wraps the area where the mounting hole is located, and is provided with a connecting hole which is communicated with the mounting hole; the fastener passes through the floor support plate body, stretches into the connecting hole, and is in threaded connection with the connecting nut.

According to the technical scheme provided by the embodiment of the utility model, the steel bar truss and the connecting piece can be connected in a welding manner, so that the rigidity of the floor support plate applying the connecting piece in the construction stage is increased, the deformation of the floor support plate body in the construction stage is reduced, and the floor support plate has the effect of better plate bottom flatness. Meanwhile, the connecting assembly can be connected to the steel bar truss in advance, construction of the bottom-wrapping steel bar truss assembly is facilitated, and meanwhile storage and transportation of the bottom-wrapping steel bar truss assembly cannot be influenced. Coupling assembling can be used to connect the steel bar truss on the building carrier plate body, and coupling assembling accessible fastener and building carrier plate body are connected, and wherein, the fastener passes through coupling nut to realize being connected with the connecting piece, can guarantee the joint strength between fastener and the coupling nut, improves the joint strength between connecting piece and the fastener promptly, avoids taking place the dropout condition. In addition, the height of the connecting piece can be improved through the supporting seat, so that the concrete is easier to enter the bottom of the connecting piece, the concrete is easier to wrap the connecting component, and the connecting strength is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a bottom-clad steel bar truss assembly according to an embodiment of the present invention;

fig. 2 is a partial structural view of the bottom-clad steel bar truss assembly of fig. 1;

FIG. 3 is a schematic diagram of an embodiment of the present invention showing an application of the bottom-clad steel bar truss assembly;

fig. 4 is a schematic perspective view of a connecting assembly according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a connecting assembly according to an embodiment of the present invention;

FIG. 6 is a side cross-sectional view of a connecting assembly in accordance with an embodiment of the present invention;

FIG. 7 is a schematic top view of a coupling assembly in accordance with an embodiment of the present invention;

FIG. 8 is a schematic bottom view of a coupling assembly in accordance with an embodiment of the present invention;

FIG. 9 is a side plan view of a coupling assembly in accordance with an embodiment of the present invention;

fig. 10 is a side view of another connecting assembly according to an embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without any creative efforts shall fall within the protection scope of the embodiments of the present invention.

The inventor finds that, in the prior art, when the detachable steel bar truss floor bearing plate is used, relative sliding is easy to occur between the steel bar truss and the bottom template in the construction stage, so that the deformation of the bottom template is increased, and the flatness of the plate bottom is influenced.

The reason for this is that the connecting piece is an injection molding piece, and the steel bar truss and the injection molding piece are buckled, so that the steel bar truss and the bottom formwork slide relatively when concrete is poured.

In view of the above problems, embodiments of the present invention provide a bottom-wrapped steel bar truss assembly and a steel bar truss floor support plate, which can effectively avoid occurrence of excessive deformation of a floor bottom.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first" and "second" in the description of the present invention are used merely for convenience in describing different components or names, and are not to be construed as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1

Fig. 1 is a schematic cross-sectional structure view of a bottom-wrapped steel bar truss assembly in an embodiment of the present invention, fig. 2 is a schematic partial structure view of the bottom-wrapped steel bar truss assembly in fig. 1, and fig. 3 is a schematic application manner of the bottom-wrapped steel bar truss assembly in an embodiment of the present invention, as shown in fig. 1 to 3.

The embodiment of the utility model provides a bottom-wrapped steel bar truss assembly, which comprises: steel truss 300 and connecting assembly 100.

The steel bar truss 300 comprises an upper chord steel bar 301, two lower chord steel bars 302 positioned at two sides below the upper chord steel bar 301, and web member steel bars 303 of which two ends are fixedly connected with the upper chord steel bar 301 and the lower chord steel bars 302 respectively.

Along the axial direction of the lower chord steel bars 302, a plurality of connecting assemblies 100 are arranged at intervals on each lower chord steel bar 302. Wherein, with reference to fig. 4 to 6 in conjunction with fig. 1 to 3, the connection assembly 100 includes: a connecting piece 10, a connecting nut 20 and a supporting seat 30. The connecting piece 10 has a first surface and a second surface which are arranged in an opposite way, and is provided with a mounting hole 11 which penetrates through the first surface and the second surface, and the connecting piece 10 is connected with the lower chord steel bar 302. Taking the orientation in fig. 4 as an example, the first surface is the upward surface, and the second surface is the downward surface.

Referring to fig. 7 to 9 in conjunction with fig. 4 to 6, the coupling nut 20 is coupled to the first surface, and the screw hole of the coupling nut 20 is penetrated through the mounting hole 11. The support base 30 is connected with the second surface and at least wraps the area where the mounting hole 11 is located, the support base 30 is provided with a connecting hole 31, and the connecting hole 31 is communicated with the mounting hole 11.

According to the technical scheme provided by the embodiment of the utility model, the connecting assemblies 100 can be connected to the steel bar truss 300 in advance, so that construction of the bottom-wrapped steel bar truss assembly is facilitated, and each lower chord steel bar 302 is separately provided with the plurality of connecting assemblies 100, so that the space between two lower chord steel bars 302 is not blocked, when the plurality of bottom-wrapped steel bar truss assemblies are stored, the upper chord steel bar 301 of one bottom-wrapped steel bar truss assembly can extend into the space between two lower chord steel bars 302 of the other bottom-wrapped steel bar truss assembly, stacked storage is realized, and the occupied space is reduced. Correspondingly, in the transportation process, the occupied space of the carriage can be reduced, and the bottom-wrapping steel bar truss assembly is convenient to store and transport.

Meanwhile, referring to fig. 1 and 3, the connection assembly 100 may be used to connect the steel bar truss 300 to the floor deck plate 200, and the connection assembly 100 may be connected to the floor deck plate 200 through a fastener, where the fastener is connected to the connection member 10 through the connection nut 20, so that the connection strength between the fastener and the connection nut 20 may be ensured, that is, the connection strength between the connection member 10 and the fastener may be improved, and the occurrence of a tripping situation may be avoided. And the steel bar truss 300 and the connecting assembly 100 can not slide, so that the steel bar truss 300 and the floor support plate body 200 form a whole, the relative sliding between the steel bar truss 300 and the floor support plate body 200 in the construction stage is reduced, the deformation of the floor support plate body 200 is reduced, and the flatness of the floor support plate body 200 is improved.

In addition, the height of the connecting member 10 can be increased by the supporting base 30, so that the concrete can enter the bottom of the connecting member 10 more easily, the connecting assembly 100 can be wrapped by the concrete more easily, and the connecting strength is improved.

The following examples are presented to further illustrate the utility model in conjunction with the detailed description.

In the embodiment of the present invention, the connecting member 10 includes, but is not limited to, a metal material, such as stainless steel, galvanized sheet, galvanized alloy sheet, etc. The connection nut 20 and the connection member 10 are fixed by welding, the steel bar truss 300 and the connection member 10 are fixed by welding, relative sliding between the steel bar truss 300 and the connection member 100 can be effectively avoided, the steel bar truss 300 and the floor support plate body 200 form a whole, the relative sliding between the steel bar truss 300 and the floor support plate body 200 in the construction stage is reduced, the deformation of the floor support plate body 200 is reduced, and the flatness of the floor support plate body 200 is improved. The supporting base 30 is made of, but not limited to, plastic material or rubber material, and is connected to the connecting member 10 through an injection molding process, so that it does not rust, thereby not affecting the decorative effect of the plate bottom.

Mould plastics the supporting seat 30 on the second face of connecting piece 10 to at least, wrap up the mounting hole 11 region, raise the height of connecting piece 10 through the supporting seat 30, make the clearance have between connecting piece 10 and the floor deck plate body 200, thereby make the concrete more easily get into the bottom of connecting piece 10, and simultaneously, can partly wrap up the fastener that is used for connecting through the supporting seat 30, prevent that the fastener from being wrapped up by the concrete, thereby it is easier when dismantling the fastener, thereby improve and dismantle efficiency. After the concrete solidifies, get rid of on the building carrier plate of building carrier plate body 200, only the bottom of supporting seat 30 exposes outside, and the supporting seat 30 that plastic materials made can conveniently seal the connection of filling mud, prevents that connecting piece 10 and steel bar truss 300 from being corroded, and simultaneously, supporting seat 30 can not rust, reducible influence to the rust stain to building carrier plate outward appearance.

Referring to fig. 1 and 3, the connecting assembly 100 can be connected to the floor plate 200 by fasteners (the fasteners are not shown), and the fasteners pass through the floor plate 200 from the side of the floor plate 200, pass through the connecting holes 31 and the mounting holes 11 of the supporting base 30, and connect with the connecting nuts 20, so as to fix the connecting assembly 100 to the floor plate 200. Fasteners include, but are not limited to, screws, self-tapping screws, and the like, including, but not limited to, full threads, half threads. The screw and the self-tapping screw are made of materials including, but not limited to, iron materials and stainless steel materials. The screw includes, but is not limited to, a hexagon socket screw, a cross screw, a straight screw, etc. Further, for convenient installation, a through hole may be provided in advance at a predetermined position of the floor support plate body 200, the through hole corresponds to the orifice of the mounting hole 11, and a screw may sequentially pass through the through hole, the connecting hole 31, the mounting hole 11 and then be connected to the connecting nut 20.

Further, it is also possible to realize the coupling hole 31 such that the inner wall of the coupling hole 31 is a smooth arc surface, and the fastening member is directly inserted and coupled to the coupling nut 20. Alternatively, the coupling hole 31 may be a threaded hole for engaging with a fastener, such as a screw, and the screw shaft of the screw may be directly screwed into the coupling hole 31, and then coupled with the coupling nut 20.

Further, according to different requirements, the steel bar trusses 300 with different specifications can be selected, and the specifications of the upper chord steel bars 301, the lower chord steel bars 302 and the web member steel bars 303 of the steel bar trusses 300 with different specifications can also be different, for example, the diameter range of the lower chord steel bars 302 can be selected according to different requirements, and the size range is different between 6 mm and 14 mm. The types of the upper chord reinforcements 301, the lower chord reinforcements 302 and the web member reinforcements 303 of the steel bar trusses 300 of different specifications may be different, and the types of the upper chord reinforcements 301, the lower chord reinforcements 302 and the web member reinforcements 303 of the same steel bar truss 300 may be different. For example, the rebar can be plain round rebar, ribbed rebar, and the like.

Be connected through coupling assembling 100 between steel bar truss 300 and the building carrier plate body 200, during the concreting, the concrete can wrap up coupling assembling 100, the bottom place plane of connecting piece 10 is higher than building carrier plate body 200 place plane, the bottom place plane of connecting piece 10 has the clearance between the plane of building carrier plate body 200 place plane, can make the concrete get into the bottom of connecting piece 10 more easily, make the concrete wrap up connecting piece 10 more easily, solidify into the building carrier plate when the concrete, when dismantling building carrier plate body 200 from the building carrier plate, in order to reduce the exposure of connecting piece 10 on the building carrier plate.

In the embodiment of the present invention, the floor deck plate 200 includes, but is not limited to, one of a galvanized plate, a galvanized alloy plate, a figured steel plate, a bamboo plywood plate, a wood formwork, a wood-plastic plate, an injection molding plate, an aluminum alloy formwork, and a profiled steel plate. Referring to fig. 3, when the floor deck plate 200 is a profiled steel plate, the profiled steel plate has spaced convex ribs and concave ribs, and the connecting assembly 100 is connected to the convex ribs. After the concrete solidifies on the contour plate, get rid of the building carrier plate behind the building carrier plate body 200 on, the position of connecting piece 10 is the structure of upwards caving in, can fill sealed mud of filling in sunken structure department to cover the bottom of supporting seat 30 through sealed mud of filling, avoid supporting seat 30 to reveal.

For example, with continued reference to fig. 3, the floor deck panel 200 is formed by pressing a sheet of profiled steel, including but not limited to galvanized sheet, cold rolled sheet, etc. Two adjacent profiled sheet accessible are located a plurality of fin and the mutual gomphosis overlap joint of a plurality of concave ribs of edge, and the fin and the concave rib that mutually gomphosis is in the same place can make two profiled sheet overlap joints reliable, and can effectively avoid leaking the thick liquid. The plurality of floor deck plates 200 are overlapped to form an integral structure, thereby improving continuous supporting force. The metal connecting piece is connected with profiled steel sheet, and metal connecting piece adopts welding mode to be connected with steel bar truss, therefore profiled steel sheet can participate in the atress at the construction stage, reduces the deformation of building carrier plate at the construction stage, improves the roughness effect of building carrier plate bottom. The part of the floor deck, which is sunken upwards, can be filled with elastic bonding mortar or wall mud materials or plugging materials with similar performance.

In order to further improve the rigidity of the profiled steel sheet, the profiled steel sheet is also provided with transverse ribbing so as to enhance the rigidity of the profiled steel sheet, reduce the deformation and improve the flatness effect of the floor support plate.

When adopting floor bearing plate body 200 to be profiled sheet, profiled sheet is as removable die block, and disposable can satisfy relevant technical specification requirement, still has the residual value about raw and other materials cost 40% after the profiled sheet is demolishd, for the removable die block of bamboo offset plate or the removable die block of aluminum alloy, profiled sheet has market competition economically. And the profiled steel sheet does not need to return to a factory to do a large amount of work such as cleaning, detection and secondary processing, so that the investment of production personnel is greatly reduced, the production procedures are reduced, the production efficiency is accelerated, and the production cost is reduced. Simultaneously, adopt profiled steel sheet as the die block, there is not horizontal overlap joint in the die block, profiled steel sheet arranges for leading to long, and steel bar truss 300 adopts welding mode to be connected with coupling assembling 100, therefore profiled steel sheet can participate in the atress at the construction stage, compares other types of removable truss plates and has better rigidity at the construction stage, has stronger ability of resisting construction load deformation, can improve the roughness effect of floor support plate bottom greatly.

In the embodiment of the present invention, for convenience of various different arrangement modes, a plurality of mounting holes 11 are provided, and the plurality of mounting holes 11 are arranged at intervals along the length direction of the connecting member 10. At least a part of the mounting hole 11 is provided with a coupling nut 20 and a support base 30 in the corresponding region. Through setting up a plurality of mounting holes 11, can set up coupling nut 20 and supporting seat 30's different positions and different quantity according to the demand, for example, when required joint strength is higher, can set up coupling nut 20 and supporting seat 30 more on connecting piece 10, when required joint strength is lower, can set up connection road surface and supporting seat 30 less on connecting piece 10, and the mode of setting is nimble various, can satisfy different operating mode demands.

Further, when not setting up coupling nut 20 and supporting seat 30 on some mounting hole 11, the accessible does not set up coupling nut 20 and supporting seat 30's mounting hole 11 and uses as leaking the thick liquid hole, coupling assembling 100 is at the in-process of concreting, the concrete can pass the bottom that leaks thick liquid hole (being mounting hole 11) entering connecting piece 10 on the connecting piece 10, the back is solidified to the concrete, the concrete of connecting piece 10 upper and lower both sides passes through leaking the thick liquid hole and forms an organic whole, when improving the joint strength between concrete and the connecting piece 10, can effectively reduce the production of bubble in the concrete, the effect of pouring has been improved.

Referring to fig. 4 and 6, in an embodiment of the present invention, the connecting member 10 may be implemented in a manner that the connecting member 10 includes a bottom plate 12 and two side plates 13 connected to two opposite sides of the bottom plate 12, and the bottom plate 12 and the two side plates 13 form a U-shaped groove structure. The one side that bottom plate 12 is located U type groove structure is first face, and mounting hole 11 sets up on bottom plate 12, and coupling nut 20 is connected with bottom plate 12. Referring to fig. 1 to 3, the connecting member 10 may be connected to the steel bar truss 300 through an end of the side plate 13 away from the bottom plate 12, for example, the connecting member 10 may be made of a metal material, and the connecting member 10 may be welded to the steel bar truss 300 through an end of the side plate 13 away from the bottom plate 12. The two side plates 13 can support the steel bar truss 300 at multiple points, so that the position of the steel bar truss 300 is prevented from shifting, and the connection stability of the steel bar truss 300 is improved.

According to different requirements, the supporting seat 30 covers at least partial areas of the bottom plate 12 and the side plate 13. For example, the support base 30 may be covered only in the region where the mounting hole 11 is provided in the bottom plate 12, or the entire bottom plate 12 may be covered. The support base 30 also covers at least a partial area of the side plate 13, but the side plate 13 may be entirely covered. Through supporting seat 30 cladding bottom plate 12 and curb plate 13, the connection area between supporting seat 30 and the connecting piece 10 has been increased, thereby the joint strength has been increased, make supporting seat 30 and connecting piece 10 can form a whole, and raise the height of connecting piece 10 through supporting seat 30, make to have the clearance between connecting piece 10 and the floor deck plate body 200, thereby make the concrete more easily get into the bottom of connecting piece 10, and simultaneously, can partly wrap up the fastener that is used for connecting through supporting seat 30, reduce the area that fastener and concrete contacted, thereby it is easier when dismantling the fastener.

With continued reference to fig. 4 and 6, in order to further enhance the connection strength between the supporting seat 30 and the connecting member 10, at least the side plate 13 is provided with a convex-concave structure 14, and the supporting seat 30 is connected with the convex-concave structure 14. Taking the orientation of fig. 6 as an example, the convex-concave structure 14 is a protrusion extending to the outside of the U-shaped groove structure, but may also be a concave groove, and the protrusion may be one or more. When the supporting seat 30 is injection-molded on the connecting piece 10, the supporting seat can be coated on the protrusion, and the contact area is increased through the protrusion, so that the connection strength is increased, and the supporting seat 30 is difficult to fall off from the connecting piece 10. Further, the bottom plate 12 may also be provided with a convex-concave structure 14, so that the connection between the supporting seat 30 and the connecting member 10 is more firm.

The male and female structures 14 can be realized in various ways according to different requirements, and one way of realizing the male and female structures 14 is to arrange the corresponding support seats 30 in the areas. I.e. the male and female structures 14 are provided only at the area of the support seat 30, so that the male and female structures 14 and the support seat 30 can be connected. Alternatively, referring to fig. 1, the projection and recess structure 14 extends along the length of the connector 10 and through the support base 30. For example, the projection and depression structure 14 is provided on the side plate 13, and the projection and depression structure 14 extends along the length of the side edge and penetrates the side plate 13. The forming mode of the convex-concave structure 14 is easier to realize in process manufacturing, is convenient to manufacture and improves the production efficiency.

With continued reference to fig. 6, to further improve the stability of the steel bar truss 300 supported by the two side plates 13, the included angle between the bottom plate 12 and the side plates 13 may be an acute angle, a right angle or an obtuse angle. Taking the clockwise direction from the bottom plate 12 to the side plate 13 in fig. 6 as an example, the included angle between the bottom plate 12 and the side plate 13 may be 45 degrees, 90 degrees, 100 degrees, etc. Of course, according to different requirements, the included angle between the bottom plate 12 and the side plate 13 may also be set to other degrees, and in the embodiment of the present invention, the range of the included angle between the bottom plate 12 and the side plate 13 is not specifically limited, and any angle can meet the requirement.

Through setting up the contained angle between bottom plate 12 and the curb plate 13, can improve the stability of being connected between curb plate 13 and the steel bar truss 300, if can set up the angle of the contained angle between bottom plate 12 and the curb plate 13 to be a bit more than 90 degrees, the distance of contact point can the grow between two curb plates 13 and the steel bar truss 300 like this to make two curb plates 13 support steel bar truss 300 more stable.

Further, in order to improve the supporting strength of the side plates 13, in the embodiment of the present invention, the end of each of the two side plates 13 away from the bottom plate 12 is provided with a folded edge 15. The folded edge 15 can be bent towards the outside of the groove of the U-shaped groove structure and can also be bent towards the inside of the groove of the U-shaped groove structure. The support strength of the side plate 13 can be improved by the folded edge 15, and the side plate 13 is prevented from being deformed under the gravity action of the steel bar truss 300. Meanwhile, when the connector 10 is connected to the steel bar truss 300, the folded edge 15 may further increase a contact area between the connector 10 and the steel bar truss 300 to improve connection strength.

The bending degree of the folded edge 15 can be adjusted correspondingly according to different requirements, and in the embodiment of the utility model, the included angle between the folded edge 15 and the side plate 13 can be an acute angle, a right angle or an obtuse angle. For example, taking the clockwise direction from the side plate 13 to the folded edge 15 in fig. 6 as an example, the included angle between the folded edge 15 and the side plate 13 may be 30 degrees, 45 degrees, 60 degrees, 135 degrees, or the like. Of course, the included angle between the side plate 13 and the folded edge 15 can be set to other degrees according to different requirements, and in the embodiment of the utility model, the range of the included angle between the side plate 13 and the folded edge 15 is not specifically limited, and any angle can meet the requirement.

Further, in order to improve the strength of the folded edge 15, in the embodiment of the present invention, the connection between the side plate 13 and the folded edge 15 is a smooth arc structure. Hem 15 can carry out slick and sly when relative curb plate 13 buckles, and the length of hookup location department between multiplicable hem 15 and the steel bar truss 300 like this to can improve the connection area between hem 15 and the steel bar truss 300, when carrying out welding operation, can avoid hem 15 to be pierced through, improve the connection stability of solder joint.

In order to further reduce the exposure of the supporting seat 30 after the concrete is poured, in the embodiment of the utility model, referring to fig. 10, a supporting boss 32 is provided on the bottom of the supporting seat 30 at the periphery of the connecting hole 31, and the area of the supporting boss 32 is smaller than that of the bottom of the supporting seat 30. When using, the supporting seat 30 can effectively reduce the area of contact between the supporting seat 30 and the floor deck plate body 200 through supporting the boss 32 and the abutment of the floor deck plate body 200 through supporting the boss 32 to raise the bottom of the supporting seat 30, when pouring concrete, the concrete can enter into the bottom of the supporting seat 30, wrap up the supporting seat 30, and reduce the exposure of the supporting seat 30. After the concrete solidifies, get rid of on the floor carrier plate of floor carrier plate body 200, only the support boss 32 of supporting seat 30 bottom exposes outside, and the area of supporting boss 32 is less than the bottom area of supporting seat 30, and is less to the outward appearance influence of floor carrier plate.

Further, in order to make the concrete more easily flow into the bottom of the support seat 30, in the embodiment of the present invention, the edge side of the support seat 30 away from the support boss 32 is provided with a flow guiding fillet. The water conservancy diversion fillet makes the bottom of supporting seat 30 more slick and sly, and the concrete can flow in the bottom of supporting seat 30 along the water conservancy diversion fillet to can wrap up supporting seat 30 completely, after the concrete solidifies and forms the building carrier plate, the position that building carrier plate and supporting seat 30 correspond can not expose the bottom of supporting seat 30.

The following describes how the bottom-clad steel bar truss assembly provided by the embodiment of the utility model can be used.

In the embodiment of the utility model, the using process of the bottom-wrapped steel bar truss assembly comprises but is not limited to the following steps:

step S101: firstly, mounting a connecting nut 20 and a corresponding number of supporting seats 30 on a connecting piece 10 to form a bottom-wrapped connecting component 100;

step S102: then, a plurality of connecting assemblies 100 are arranged on the lower chord steel bars 302 of the steel bar trusses 300 to form bottom-wrapped steel bar truss assemblies, and if the bottom-wrapped steel bar truss assemblies are welded and fixed on the connecting piece 10, the lower chord steel bars 302 of the steel bar trusses 300 are prevented from sliding between the steel bar trusses 300 and the connecting piece 10;

step S103: the connection between the connection assembly 100 and the floor deck plate 200 is accomplished by fasteners, including but not limited to screws, which pass through the floor deck plate 200 and the support base 30 and connect with the connection nut 20 to connect the connection assembly 100 to the floor deck plate 200;

step S104: repeating the steps S101 to S103 to finish the manufacture of the steel bar truss floor bearing plate;

make behind the steel bar truss building carrier plate, use the mode of steel bar truss building carrier plate as follows:

step S201: installing a plurality of steel bar truss floor bearing plates at preset positions, and pouring concrete on the floor bearing plate body 200 to enable the concrete to wrap the steel bar trusses 300 and the connecting assemblies 100;

step S202: after the concrete is solidified, the floor deck is formed, the fastening piece for fixing is detached from the bottom of the floor deck plate body 200, and the fastening piece is wrapped on the connecting assembly 100 through the supporting seat 30, so that the contact area between the fastening piece and the concrete is reduced, and the fastening piece is very convenient to detach;

step S203: the floor deck plate 200 is removed from the floor deck with the bottom of the floor deck only exposed at the bottom of the support base 30.

According to the technical scheme provided by the embodiment of the utility model, the connecting assemblies 100 can be connected to the steel bar truss 300 in advance, so that construction of the bottom-wrapped steel bar truss assembly is facilitated, and each lower chord steel bar 302 is separately provided with the plurality of connecting assemblies 100, so that the space between two lower chord steel bars 302 is not blocked, when the plurality of bottom-wrapped steel bar truss assemblies are stored, the upper chord steel bar 301 of one bottom-wrapped steel bar truss assembly can extend into the space between two lower chord steel bars 302 of the other bottom-wrapped steel bar truss assembly, stacked storage is realized, and the occupied space is reduced. Correspondingly, in the transportation process, the occupied space of the carriage can be reduced, and the bottom-wrapping steel bar truss assembly is convenient to store and transport.

Meanwhile, referring to fig. 1 and 3, the connection assembly 100 may be used to connect the steel bar truss 300 to the floor deck plate 200, and the connection assembly 100 may be connected to the floor deck plate 200 through a fastener, where the fastener is connected to the connection member 10 through the connection nut 20, so that the connection strength between the fastener and the connection nut 20 may be ensured, that is, the connection strength between the connection member 10 and the fastener may be improved, and the occurrence of a tripping situation may be avoided. In addition, the height of the connecting member 10 can be increased by the supporting base 30, so that the concrete can enter the bottom of the connecting member 10 more easily, the connecting assembly 100 can be wrapped by the concrete more easily, and the connecting strength is improved. In addition, the steel bar truss 300 and the metal connecting piece 10 can be connected in a welding mode, and the rigidity of the floor deck applying the connecting assembly 100 in the construction stage is increased, so that the deformation of the floor deck plate body 200 in the construction stage is reduced, and the floor deck has a better effect of plate bottom flatness.

Example 2

Based on embodiment 1, referring to fig. 1 and fig. 3, an embodiment of the present invention further provides a steel bar truss floor deck, where the steel bar truss floor deck includes a floor deck plate 200 and a plurality of bottom-covered steel bar truss assemblies. The bottom-wrapped steel bar truss component can be realized by the bottom-wrapped steel bar truss component in the embodiment 1.

Specifically, referring to fig. 1 to 3, the bottom-covered steel bar truss assembly includes a steel bar truss 300 and a connection assembly 100. The steel bar truss 300 comprises an upper chord steel bar 301, two lower chord steel bars 302 positioned at two sides below the upper chord steel bar 301, and web member steel bars 303 of which two ends are fixedly connected with the upper chord steel bar 301 and the lower chord steel bars 302 respectively. Along the axial direction of the lower chord steel bars 302, a plurality of connecting assemblies 100 are arranged at intervals on each lower chord steel bar 302.

Referring to fig. 4 to 6 in conjunction with fig. 1 to 3, a connecting assembly 100 includes: the connecting piece 10, the connecting nut 20 and the supporting seat 30;

the connecting member 10 has a first surface and a second surface opposite to each other, and has a mounting hole 11 penetrating through the first surface and the second surface. The connector 10 is connected with the lower chord reinforcing steel bar 302. The coupling nut 20 is coupled to the coupling member 10, and a screw hole of the coupling nut 20 is penetrated through the mounting hole 11. The support base 30 is connected with the second surface and at least wraps the area where the mounting hole 11 is located, the support base 30 is provided with a connecting hole 31, and the connecting hole 31 is communicated with the mounting hole 11. The fastening member passes through the deck plate 200, extends into the coupling hole 31, and is threadedly coupled to the coupling nut 20.

In the embodiment of the utility model, the height of the connecting piece 10 can be increased through the supporting seat 30, so that concrete can enter the bottom of the connecting piece 10 more easily, the connecting component 100 can be wrapped by the concrete more easily, and the connecting strength is improved. Meanwhile, the part of the fastener is wrapped by the supporting seat 30, so that the fastener is prevented from being wrapped by concrete, the disassembly difficulty of the fastener is reduced, and the disassembly efficiency is improved. In addition, the steel bar truss 300 and the metal connecting piece 10 can be connected in a welding mode, and the rigidity of the floor deck applying the connecting assembly 100 in the construction stage is increased, so that the deformation of the floor deck plate body 200 in the construction stage is reduced, and the floor deck has a better effect of plate bottom flatness.

In the embodiment of the present invention, the connecting assembly 100 is arranged in such a way that the length direction of the connecting member 10 is the same as the width direction of the floor plate body 200, and the width direction of the connecting member 10 is the same as the length direction of the floor plate body 200.

In the embodiment of the present invention, the positions of the connecting components 100 may be set according to different requirements. For example, the connectors 10 on different lower chord steel bars 302 may be arranged corresponding to each other or staggered. The connecting pieces 10 on different lower chord steel bars 302, and a part of the connecting pieces 10 can be correspondingly arranged, and in the arrangement mode, the positions of the connecting pieces 10 are relatively fixed, so that standardized construction is facilitated, and the construction efficiency can be improved. The connectors 10 on the lower chord steel bars 302 can be staggered with each other. Under this kind of mode of setting, along the width direction of floor support plate body 200, the quantity that is located the connecting piece 10 on same straight line has been reduced to the quantity that is located the fastener on same straight line has been reduced, thereby has reduced because of setting up more fastener on same straight line, and the cracked probability of floor support plate body 200 along width direction has improved the security.

Furthermore, at least a part of the connectors 10 on the lower chord steel bar 302 are correspondingly arranged, and at least a part of the connectors 10 are staggered. The corresponding position setting and the staggered position setting can be used in a hybrid mode, and therefore different setting requirements are met.

In the embodiment of the present invention, the floor support plate 200 is one of a bamboo plywood, a wood formwork, a wood-plastic plate, an aluminum alloy formwork, and a profiled steel sheet. When the floor deck plate 200 is a contoured plate, the contoured plate has raised ribs and recessed ribs spaced apart from each other. The connecting member 100 is attached to the rib. After the concrete solidifies on the contour plate, get rid of the building carrier plate of building carrier plate body 200 after, the position of connecting piece 10 is the structure of upwards caving in, can fill sealed mud of filling in sunken structure department to cover the bottom of supporting seat 30 through sealed mud of filling, avoid supporting seat 30 to reveal.

It should be noted that the technical features in embodiment 2 and the technical features in embodiment 1 may be mutually referred to, and are not described again.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and not to limit the same; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (12)

1. A bottom-clad steel bar truss assembly, comprising:

the steel bar truss comprises an upper chord steel bar, two lower chord steel bars positioned on two sides below the upper chord steel bar and web member steel bars, wherein two ends of the web member steel bars are fixedly connected with the upper chord steel bar and the lower chord steel bar respectively;

the connecting assemblies are arranged along the axial direction of the lower chord steel bars, and a plurality of connecting assemblies are arranged at intervals on each lower chord steel bar; wherein the content of the first and second substances,

the connecting assembly includes: the connecting piece, the connecting nut and the supporting seat;

the connecting piece is provided with a first surface and a second surface which are arranged in an opposite way, and is provided with a mounting hole penetrating through the first surface and the second surface, and the connecting piece is connected with the lower chord steel bar;

the connecting nut is connected with the first surface, and a screw hole of the connecting nut is communicated with the mounting hole;

the supporting seat is connected with the second surface and at least wraps the area where the mounting hole is located, and the supporting seat is provided with a connecting hole which is communicated with the mounting hole.

2. The bottom-clad steel bar truss assembly according to claim 1, wherein the connecting member is made of a metal material, and the connecting nut and the steel bar truss are fixed with the connecting member by welding.

3. The bottom-clad steel bar truss assembly according to claim 1, wherein the mounting holes are a plurality of holes, and the mounting holes are arranged at intervals along the length direction of the connecting piece;

at least one part of the area corresponding to the mounting hole is provided with the connecting nut and the supporting seat.

4. The bottom-clad steel bar truss assembly according to claim 1, wherein the connecting member comprises a bottom plate and two side plates connected to opposite sides of the bottom plate, and the bottom plate and the two side plates form a U-shaped groove structure;

one surface of the bottom plate, which is positioned in the U-shaped groove structure, is the first surface, the mounting hole is formed in the bottom plate, and the connecting nut is connected with the bottom plate;

the supporting seat covers at least partial areas of the bottom plate and the side plates.

5. The bottom-clad steel bar truss assembly according to claim 4, wherein the included angle between the bottom plate and the side plate can be an acute angle, a right angle or an obtuse angle.

6. The bottom-clad steel bar truss assembly according to claim 4, wherein at least the side plates are provided with a male-female structure, and the support base is connected with the male-female structure.

7. The bottom-clad steel bar truss assembly according to claim 6, wherein the convex-concave structure is arranged at the area corresponding to the support seat; or the convex-concave structure extends along the length direction of the connecting piece and penetrates through the supporting seat.

8. The bottom-clad steel bar truss assembly according to claim 4, wherein the ends of the two side plates, which are far away from the bottom plate, are provided with folded edges.

9. The bottom-clad steel bar truss assembly according to claim 8, wherein the included angle between the side plate and the folded edge can be an acute angle, a right angle or an obtuse angle.

10. The bottom-clad steel bar truss assembly according to any one of claims 1 to 9, wherein a support boss having an area smaller than that of the bottom of the support base is provided on the bottom of the support base at the periphery of the coupling hole.

11. The bottom-clad steel bar truss assembly according to any one of claims 1 to 9, wherein the support base is made of a plastic material and is connected to the connecting member by an injection molding process.

12. A steel bar truss floor deck, comprising:

a floor deck plate body;

the steel bar truss assembly comprises steel bar trusses and connecting assemblies; wherein the content of the first and second substances,

the steel bar truss comprises an upper chord steel bar, two lower chord steel bars positioned at two sides below the upper chord steel bar and web member steel bars of which two ends are fixedly connected with the upper chord steel bar and the lower chord steel bar respectively;

along the axial direction of the lower chord steel bars, a plurality of connecting assemblies are arranged at intervals on each lower chord steel bar;

the connection assembly, comprising: the connecting piece, the connecting nut and the supporting seat;

the connecting piece is provided with a first surface and a second surface which are arranged in an opposite way, and is provided with a mounting hole which penetrates through the first surface and the second surface; the connecting piece is connected with the lower chord steel bar; the connecting nut is connected with the connecting piece, and a screw hole of the connecting nut is communicated with the mounting hole; the supporting seat is connected with the second surface and at least wraps the area where the mounting hole is located, and is provided with a connecting hole which is communicated with the mounting hole; the fastener passes through the floor support plate body, stretches into the connecting hole, and is in threaded connection with the connecting nut.

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