Supporting structure and supporting method of steel bar truss floor support plate

Abstract

The invention relates to the field of supporting of steel bar truss floor bearing plates, in particular to a supporting structure and a supporting method of a steel bar truss floor bearing plate, the supporting structure comprises at least two portal short columns, portal beams and bearing beams, and the portal short columns are connected to supporting steel beams on the two sides respectively. The portal frame beam is fixedly connected to the portal frame short columns and stretches across the supporting steel beams on the two sides. The bearing beam is fixedly connected to the portal beam and is perpendicular to the portal beam. Wherein the door frame beams and the door frame short columns serve as main structures of the whole supporting structure, proper lengths and numbers of the door frame beams and the door frame short columns need to be selected according to the lengths of the supporting steel beams and the steel bar truss floor bearing plates, and the door frame beams and the door frame short columns are distributed on the supporting steel beams according to actual requirements. The portal beam stretches across the two supporting steel beams, the bearing beam comprises a lifting hook, and the lifting hook is connected to the steel bar truss floor support plate, so that the steel bar truss floor support plate is hung on a supporting structure, and potential safety hazards caused by incomplete reinforcement are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of steel bar truss floor support, in particular to a steel bar truss floor support structure and a support method. BACKGROUND

[0002] The steel bar truss floor support is a type of floor support which is combined by upper and lower longitudinal steel bars and small-diameter steel bars (web members) through welding process. The upper and lower steel bars and the small-diameter steel bars are combined through welding process to form a floor support structure which is rigid and stable in construction. The steel bar truss floor support is directly supported on a steel beam or a concrete beam, and is both a load-bearing bar of the concrete floor and a formwork of the floor support frame and the concrete floor, thereby saving the labor cost of additional support frame and formwork. The steel bar truss floor support can be directly subjected to steel bar cutting, positioning and forming in a factory, thereby reducing steel bar waste and saving material cost. The steel bar truss floor support is widely used in construction.

[0003] However, in the prior art, when the steel bar truss floor support needs to be reinforced, temporary support columns are usually arranged below or the steel bar truss floor support is supported by using a scaffold. However, in actual operation, the floor below the steel bar truss floor support is uneven, which cannot guarantee the support effect and affects the stability of the support position of the steel bar truss floor support. SUMMARY

[0004] The present application is made to solve the above technical problems, and aims to provide a steel bar truss floor support structure and a support method, which can temporarily reinforce the steel bar truss floor support above the steel bar truss floor support, thereby guaranteeing the stable support of the steel bar truss floor support when the floor below the steel bar truss floor support is uneven or it is inconvenient to arrange a support structure, and guaranteeing the support effect.

[0005] To achieve the above-mentioned purpose, the present application provides a steel bar truss floor support structure which is installed on support steel beams on both sides of a floor and comprises: portal short columns which are arranged at least two and connected to the support steel beams on both sides; a portal beam which is fixedly connected to the portal short columns and horizontally spans above the support steel beams on both sides; and a bearing beam which is fixedly connected to the portal beam and perpendicular to the portal beam, wherein the bearing beam comprises hooks which are connected to the steel bar truss floor support.

[0006] Preferably, a plurality of bearing beams are arranged, and the plurality of bearing beams are fixedly connected to the portal beam.

[0007] Preferably, the plurality of bearing beams are located on the same straight line.

[0008] Preferably, the hooks of different orientations are the same in number relative to the two sides of the bearing beam.

[0009] Preferably, the hooks on the adjacent carrying beams face opposite directions.

[0010] Preferably, the door frame short column, the door frame beam and the carrying beam are welded.

[0011] Preferably, the length of the door frame short column ranges from 400mm to 500mm.

[0012] Preferably, the carrying beam and the hook are integrally formed.

[0013] Preferably, the two adjacent door frame short columns on the same side of the support steel beam are spaced the same distance apart.

[0014] The present application provides a support method for a steel bar truss floor support plate, which is applied to the support structure described above and comprises the following steps: according to a steel beam layout, laying a steel bar truss floor support plate and obtaining the size and installation position of a door frame short column, a door frame beam, a carrying beam and a hook; sequentially fixing the door frame short column, the door frame beam and the carrying beam on a support steel beam; and hanging the top chord steel bar of the steel bar truss floor support plate on the hook on the carrying beam.

[0015] According to the above description and practice, the support structure for the steel bar truss floor support plate described in the present application is installed on the support steel beams on both sides of a floor, and the support structure comprises a door frame short column, a door frame beam and a carrying beam. The door frame short column is provided with at least two, which are connected to the support steel beams on both sides, respectively, for separating the support steel beams and the later-added support structure, avoiding the influence of the support steel beams on the stability of the entire support structure when the support structure is welded and processed. The door frame beam is fixedly connected to the door frame short column and horizontally spans above the support steel beams on both sides. The carrying beam is fixedly connected to the door frame beam and is perpendicular to the door frame beam. The door frame beam and the door frame short column serve as the main structure of the entire support structure, and appropriate lengths and quantities thereof are selected according to the length of the support steel beam and the steel bar truss floor support plate and are distributed on the support steel beam according to actual requirements. The door frame beam horizontally spans between two support steel beams. The carrying beam comprises a hook, which is connected to the steel bar truss floor support plate, so as to hang the steel bar truss floor support plate on the support structure, avoiding the situation that the steel bar truss floor support plate cannot be installed when there are sundries on the lower floor or the floor is uneven, and still achieving the reinforcing effect of the steel bar truss floor support plate, avoiding the safety hazard caused by incomplete reinforcement. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structural schematic view of the steel bar truss floor support plate and the support structure involved in an embodiment of the present application.

[0017] Figure 2 The structural schematic view of the steel bar truss floor support plate and the support structure involved in an embodiment of the present application. Figure 1 The enlarged structural schematic view of the circle A in the embodiment of the present application.

[0018] Figure 3 A structural diagram of a support structure of a steel bar truss floor support plate involved in an embodiment of the present application.

[0019] Figure 4 A flow chart of a support method of a steel bar truss floor support plate involved in an embodiment of the present application. DETAILED DESCRIPTION

[0020] Exemplary embodiments now will be described more fully hereinafter with reference to the accompanying drawings; however, the exemplary embodiments can be implemented in any number of ways, and are not limited to the examples described herein. Rather, applications disclose provides examples of embodiments of the present application as a prelude to the more detailed description of the applications as well as to the claims presented below. Features described in the description and / or shown in the figures can be combined in any suitable manner in one or more embodiments.

[0021] In addition, the accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. In the drawings:

[0022] Unless otherwise defined, the terms "mounting", "connected", "connecting" are to be construed as broadest possible terms, for example, can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected in communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] The present application provides a support structure of a steel bar truss floor support plate, please refer to Figures 1 to 3The support structure is mounted on the support steel beams 1 on both sides of the floor, and the support structure comprises portal short columns 2, portal beams 3 and bearing beams 4. The portal short columns 2 are provided at least in two, and are connected to the support steel beams 1 on both sides, for separating the support steel beams 1 and the later added support structure, avoiding the influence of the support steel beams 1 on the welding and other treatments of the support structure, and further affecting the stability of the entire support structure. The portal beams 3 are fixedly connected to the portal short columns 2 and cross above the support steel beams 1 on both sides. The bearing beams 4 are fixedly connected to the portal beams 3 and are perpendicular to the portal beams 3. Among them, the portal beams 3 and the portal short columns 2 are the main structure of the entire support structure, and the appropriate length and quantity need to be selected according to the length of the support steel beams 1 and the steel bar truss floor 6, and they are distributed on the support steel beams 1 according to the actual needs. The portal beams 3 cross between the two support steel beams 1, and the bearing beams 4 comprise hooks 5 connected to the steel bar truss floor 6, which realizes hanging the steel bar truss floor 6 on the support structure, avoiding the situation that when there are sundries on the lower floor or the floor is uneven and the support frame cannot be installed, the reinforcing effect of the steel bar truss floor 6 can still be guaranteed, and safety hazards caused by incomplete reinforcement are avoided.

[0024] Specifically, generally, the steel bar truss floor 6 is heavy, in order to stably fix it on the support structure. In some embodiments, the bearing beams 4 are provided in plurality, and the plurality of bearing beams 4 are fixedly connected to the portal beams 3. By providing the plurality of bearing beams 4, the gravity of the entire steel bar truss floor 6 is dispersed. Avoiding the situation that due to the excessive weight of the steel bar truss floor 6, when the steel bar truss floor 6 is connected to the bearing beams 4 through the hooks 5, the bearing beams 4 cannot completely bear the weight of the steel bar truss floor 6, and then part of the steel bar truss floor 6 is separated from the support structure, affecting the normal reinforcement and subsequent concrete pouring of the steel bar truss floor 6, and seriously may cause safety hazards.

[0025] Further, in order to ensure that the contact between the steel bar truss floor 6 and the bearing beams 4 is not deviated by the gravity of the steel bar truss floor 6 when the steel bar truss floor 6 is connected with the entire support structure. In some embodiments, the plurality of bearing beams 4 are located on the same straight line, on the one hand, it ensures that the contact force area between the bearing beams 4 and the steel bar truss floor 6 is always a straight line when the bearing beams 4 are fixedly connected to the steel bar truss floor 6, ensuring the stable fixing effect of the bearing beams 4 on the steel bar truss floor 6; on the other hand, it simplifies the operation difficulty of the steel bar truss floor 6 fixed on the bearing beams 4, only needs to align the top chord steel bars 61 on the steel bar truss floor 6 with the plurality of hooks 5 arranged in a straight line, and then the entire steel bar truss floor 6 can be stably connected to the bearing beams 4.

[0026] It can be understood that in order to make the steel truss floor 6 not to be tilted or broken from the portal beam 3 due to uneven force when hoisted on the support structure. In some embodiments, the different direction hooks 5 are the same number on both sides of the bearing beam 4, on the one hand, it can ensure that the portal beam 3 and the bearing beam 4 can be stable under their own force without tilting under the action of their own gravity, which affects the support effect of the whole support structure; on the other hand, it can ensure that the steel truss floor 6 can be installed on the different direction hooks 5 according to the actual situation during operation, which enhances the flexibility of supporting the steel truss floor 6.

[0027] Further, in some embodiments, the hooks 5 on the adjacent bearing beams 4 are opposite to each other, which ensures the stability of the self-weight of the bearing beam 4, and can support the adjacent steel truss floor 6 in different directions, which ensures that the portal beam 3 and the bearing beam 4 will not be damaged due to excessive one-way force when the steel truss floor 6 is hoisted and supported by the support structure.

[0028] It can be understood that due to the large self-weight of the steel truss floor 6, and when arranging, multiple steel truss floors 6 need to be installed on the support structure together. In order to avoid the situation that the support structure is damaged due to excessive force on part of the structure when the heavy steel truss floor 6 is fixed on the support structure, causing a safety accident. In some embodiments, the portal short column 2, the portal beam 3 and the bearing beam 4 are welded together, which improves the rigidity of the whole support structure and avoids the deformation of the portal beam 3 and the bearing beam 4 caused by the excessive weight of the steel truss floor 6. Specifically, the portal short column 2 is welded around the support steel beam 1 to avoid the support structure from falling off the support steel beam 1 during the process of supporting the steel truss floor 6, which affects the stability of the support structure. The portal beam 3 and the portal short column 2, and the portal beam 3 and the bearing beam 4 are connected by angle welding, which greatly ensures the welding strength between the portal beam 3 and the portal short column 2, and the portal beam 3 and the bearing beam 4, and further ensures the support strength of the whole support structure, so as to prevent the support structure from deforming or breaking from the connection due to the large weight of the steel truss floor 6 when supporting the steel truss floor 6. The hooks 5 and the bearing beam 4 can also be connected by angle welding, which can avoid the situation that the hooks 5 fall off the bearing beam 4 due to the excessive weight of the steel truss floor 6 when the steel truss floor 6 is hooked on the hooks 5, and further causes a safety accident.

[0029] In order to ensure the support strength of the portal short column 2 arranged on the support steel beam 1 and facilitate subsequent pouring of the floor slab concrete, in some embodiments, the length of the portal short column 2 ranges from 400 mm to 500 mm, and specifically, the length of the portal short column 2 can be 400 mm, 425 mm, 450 mm, 475 mm, 500 mm, etc., and a suitable height can be selected according to the length of the support steel beam 1 and the weight of the steel bar truss floor slab 6.

[0030] In order to ensure the connection stiffness between the support steel beam 1 and the portal short column 2 and facilitate subsequent pouring of the floor slab concrete, in some embodiments, the distance between the lower end of the portal beam 3 and the plane after the completion of the concrete pouring of the steel bar truss floor slab 6 is at least 300 mm, and specifically, can be 300 mm, 325 mm, 350 mm, 375 mm, etc.

[0031] In order to ensure that the bearing beam 4 can stably support the steel bar truss floor slab 6, in some embodiments, the bearing beam 4 and the hook 5 are integrally formed, which reduces the production time and production cost of welding the hook 5 on the bearing beam 4, and at the same time can improve the stiffness between the hook 5 and the bearing beam 4, and reduce the repetitive work of sequentially welding the hook 5 on the bearing beam 4, and improve the production efficiency.

[0032] It can be understood that, since the upper chord steel bars 61 on the steel bar truss floor slab 6 are usually arranged uniformly and equidistantly above the steel bar truss floor slab 6, in order to ensure that the support structure can stably and fixedly support the steel bar truss floor slab 6, in some embodiments, the two adjacent portal short columns 2 on the same side of the support steel beam 1 are spaced the same, so as to ensure that each portal beam 3 and bearing beam 4 is uniformly distributed above the steel bar truss floor slab 6, and the hooks 5 can be hung on the upper chord steel bars 61 on the steel bar truss floor slab 6 with the same spacing, thereby ensuring the stability of the fixed steel bar truss floor slab 6.

[0033] The application discloses a support method of a steel bar truss floor slab, which is applied to any one of the support structures and comprises the following steps. Step S1: according to a steel beam layout diagram, laying a steel bar truss floor slab 6 and obtaining the size and installation position of a portal short column 2, a portal beam 3, a bearing beam 4 and a hook 5.

[0034] In some application scenarios, according to the actual size and position of the support steel beam 1, the number of the steel bar truss floor slab 6 to be laid is calculated, and the number of the support structure is determined according to the number and position of the steel bar truss floor slab 6, and then the size and installation position of the gantry short column 2, the gantry beam 3, the bearing beam 4 and the hook 5 on the support steel beam 1 are calculated, so as to support the steel bar truss floor slab 6 with the minimum number and cost, and to reduce the weight of the whole support structure as much as possible under the premise of meeting the bearing requirement, so as to save the labor and material cost of construction.

[0035] Step S2: sequentially fixing the gantry short column 2, the gantry beam 3 and the bearing beam 4 on the support steel beam 1.

[0036] In some application scenarios, when the gantry short column 2, the gantry beam 3 and the bearing beam 4 are fixed, the welding method is usually adopted, and the position of the gantry short column 2 can be adjusted according to the steel beam layout diagram, so as to ensure that the gantry beam 3 and the bearing beam 4 can be arranged at the corresponding positions, the steel bar truss floor slab 6 is fixed, and the loading and unloading operations can be carried out on the well-maintained floor slab, the safety factor is higher, and the floor slab below is not affected by the construction progress, so as to further improve the overall construction efficiency.

[0037] Step S3: hanging the top chord steel bar 61 of the steel bar truss floor slab 6 on the hook 5 of the bearing beam 4.

[0038] In some application scenarios, after the number and position of the steel bar truss floor slab 6 are determined according to the position of the support steel beam 1, the top chord steel bar 61 of the steel bar truss floor slab 6 can be hung on the hook 5 of the bearing beam 4, so as to stably fix the steel bar truss floor slab 6 on the support structure, so that the fixation of the steel bar truss floor slab 6 is no longer affected by the construction progress below the floor, and the construction efficiency is further improved.

[0039] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A support structure of a steel bar truss floor support plate installed on a support steel beam on both sides of a floor, characterized in that, The support structure comprises: a portal short column, at least two of which are arranged on both sides of the support steel beam; a portal beam fixedly connected to the portal short column and horizontally across the support steel beam on both sides; a load-bearing beam fixedly connected to the portal beam and perpendicular to the portal beam; wherein the load-bearing beam comprises a lifting hook connected to the steel bar truss floor slab.

2. The support structure according to claim 1, wherein: a plurality of load-bearing beams are fixedly connected to the portal beam.

3. The support structure according to claim 2, wherein: a plurality of load-bearing beams are located on the same straight line.

4. The support structure according to claim 2, wherein: the number of lifting hooks of different orientations is the same on both sides of the load-bearing beam.

5. The support structure according to claim 4, wherein: the lifting hooks on adjacent load-bearing beams face in opposite directions.

6. The support structure according to claim 1, wherein: the portal short column, the portal beam and the load-bearing beam are welded.

7. The support structure according to claim 1, wherein: the length of the portal short column ranges from 400mm to 500mm.

8. The support structure according to claim 1, wherein: the load-bearing beam and the lifting hook are integrally formed.

9. The support structure according to claim 1, wherein: the interval between adjacent two portal short columns on the same side of the support steel beam is the same.

10. A method of supporting a steel trussed floor deck, characterised in that, The support structure according to any one of claims 1-9, comprising: according to the steel beam layout, laying the steel bar truss floor slab and obtaining the size and installation position of the portal short column, the portal beam, the load-bearing beam and the lifting hook; sequentially fixing the portal short column, the portal beam and the load-bearing beam on the support steel beam; hanging the top chord steel bar of the steel bar truss floor slab on the lifting hook of the load-bearing beam.

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