Steel bar truss structure and laminated slab shear wall

Abstract

The utility model discloses a steel bar truss structure and a laminated slab shear wall. The steel bar truss structure comprises a plurality of single trusses, each single truss comprises an upper chord rib and a lower chord rib which are arranged in parallel at a certain interval; the supporting steel bars are vertically welded to the two ends of the upper chord rib and the lower chord rib and block the two ends of the upper chord rib and the lower chord rib; the web member ribs are obliquely arranged between the upper chord ribs and the lower chord ribs and are welded and fixed with the upper chord ribs and the lower chord ribs; the plurality of single trusses are arranged in parallel and are welded and fixed through the distribution ribs, the plurality of upper chord ribs and the plurality of lower chord ribs are respectively vertical to the distribution ribs, and the distribution ribs connected with the upper chord ribs and the distribution ribs connected with the lower chord ribs can respectively form a planar structure in a pairwise correspondence manner and are vertical to the upper chord ribs and the lower chord ribs. A plurality of single trusses are connected through the distribution bars to form the steel bar truss, field binding is not needed, production efficiency is improved, the structure of the steel bar truss is firmer, it is guaranteed that all connecting points are not tripped in the links of transportation, installation, concrete pouring and the like, and it is guaranteed that the geometric dimension and the space structure of a steel bar framework are accurate.

Description

Technical Field

[0001] The utility model relates to the field of assembled buildings, in particular to a steel bar truss structure and a composite plate shear wall. Background Art

[0002] Steel trusses are a common structural component used in construction projects, primarily in floors, roofs, and other structures that need to support heavy loads. By arranging the steel bars in a truss pattern, steel trusses can significantly improve the load-bearing capacity and stability of the structure. A steel truss consists of top and bottom chords, as well as web members. These bars are connected by welding or tying to form a triangular grid structure.

[0003] The steel trusses currently on the market all consist of one upper chord steel bar and two lower chord steel bars connected by web members, and are mostly used to make composite slabs and floor decking. They have a single purpose, and the upper stress-bearing steel bars need to be tied later, and are located below the upper chord bars, making the work efficiency of later-threading steel bars very low. For example, when subsequently processing and making composite slab shear walls, the processing steps include: tying the steel bars and truss bars in the precast slab on one side, setting up the formwork, pouring concrete, curing and forming, flipping the precast slab, and embedding it in the concrete on the other side. It requires two tying of steel bars, two setting up of formwork, two pourings of concrete, and two curing cycles. In particular, the production process requires large-scale equipment such as flipping formwork, which greatly increases the company's capital investment.

[0004] Therefore, it is urgent to provide a solution for a steel truss structure. Utility Model Content

[0005] In order to solve the above problems, the technical solution of the present invention provides a steel truss structure and a composite plate shear wall, which can improve work efficiency and facilitate mass production.

[0006] According to a first embodiment of the technical solution of the present utility model, there is provided a steel bar truss structure comprising a plurality of monolithic trusses;

[0007] The single-piece truss comprises: upper and lower chords arranged in parallel and at a certain distance; supporting steel bars vertically welded to both ends of the upper and lower chords to seal the ends of the upper and lower chords; web bars obliquely arranged between the upper and lower chords and welded to the upper and lower chords, wherein the web bars are continuous broken line structures, and the inclination directions of two adjacent web bars are different;

[0008] Multiple single-piece trusses are arranged in parallel and fixed by welding through distribution ribs. Multiple upper chord ribs and lower chord ribs are respectively perpendicular to the distribution ribs. The distribution ribs connected to the upper chord ribs and the distribution ribs connected to the lower chord ribs can form a planar structure corresponding to each other in pairs, which is perpendicular to the upper chord ribs and the lower chord ribs.

[0009] In the above solution, the web bars are axially symmetrically distributed along the perpendicular lines of the upper and lower chords on the plane formed by the upper and lower chords, and are distributed in a "W" shape or a "V" shape between the upper and lower chords.

[0010] In the above solution, the distribution ribs are respectively located on the inner sides of the upper chord ribs and the lower chord ribs.

[0011] In the above solution, the connection point between the distribution reinforcement and the upper chord reinforcement or the lower chord reinforcement is located in the bent structure formed by the web reinforcement.

[0012] In the above solution, the spacing between the single-piece trusses is 600-800 mm.

[0013] According to the second aspect embodiment of the technical solution of the present utility model, a composite plate shear wall is provided, comprising a steel truss structure and a wall as described in any one of the above items, wherein the steel truss structure and the wall together form the shear wall, and the upper chord and lower chord of the steel truss structure are embedded in the wall.

[0014] In the above solution, the wall is made of concrete.

[0015] In the above solution, the wall has two layers, namely a first wall and a second wall, and the first wall and the second wall are arranged in parallel.

[0016] In the above solution, the upper chord reinforcement is embedded in the first wall, and the lower chord reinforcement is embedded in the second wall.

[0017] In the above solution, the thickness of the first wall and the second wall are respectively 30 to 70 mm.

[0018] Beneficial effects of the utility model:

[0019] The utility model discloses a steel truss structure and a composite plate shear wall, in which a plurality of single-piece trusses are connected by distribution bars to form a steel truss, which does not require on-site binding, thereby improving production efficiency. The structure of the steel truss is more solid, ensuring that the connection points will not be disengaged during transportation, installation, concrete pouring and other links, and ensuring the geometric dimensions of the steel skeleton and the accuracy of the spatial structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the steel truss structure provided by the utility model;

[0022] Figure 2 A schematic diagram of a single truss of the reinforced steel truss structure provided by the present invention;

[0023] Figure 3 This is a schematic diagram of the composite plate shear wall provided by the utility model.

[0024] Among them, single-piece truss - 10; upper chord - 11; lower chord - 12; supporting steel bars - 13; web bars - 14; steel truss - 20; distribution bars - 21; wall - 30.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0027] The terms "first," "second," and the like in the description and claims of the present disclosure are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present disclosure described herein can, for example, be implemented in orders other than those illustrated or described herein.

[0028] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0029] Multiple includes two or more.

[0030] It should be understood that the term "and / or" as used in this disclosure simply describes an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0031] like Figure 1 and Figure 2 As shown, an embodiment of the technical solution of the present utility model provides a steel truss structure including a plurality of single-piece trusses 10 .

[0032] The single-piece truss 10 includes: an upper chord 11 and a lower chord 12 arranged in parallel and at a certain distance; a supporting steel bar 13, which is vertically welded to the ends of the upper chord 11 and the lower chord 12 to block the ends of the upper chord 11 and the lower chord 12; a web bar 14, which is obliquely arranged between the upper chord 11 and the lower chord 12 and welded and fixed to the upper chord 11 and the lower chord 12. The web bar 14 is a continuous broken line structure, and the inclination directions of two adjacent web bars 14 are different.

[0033] Multiple single-piece trusses 10 are arranged in parallel and welded together with distribution bars 21 to form a steel truss 20. Multiple upper chord bars 11 and lower chord bars 12 are perpendicular to the distribution bars 21. The distribution bars 21 connected to the upper chord bars 11 and the distribution bars 21 connected to the lower chord bars 12 can form a planar structure perpendicular to the upper chord bars 11 and the lower chord bars 12.

[0034] In the present invention, multiple single-piece trusses 10 are welded through distribution bars 21 to form a steel truss 20, which avoids on-site binding and improves production efficiency. The structure of the steel truss 20 is more solid, ensuring that the connection points will not be disengaged during transportation, installation, concrete pouring and other links, and ensuring the geometric dimensions of the steel skeleton and the accuracy of the spatial structure.

[0035] In this embodiment, the web reinforcement 14 is preferably distributed axially symmetrically along the perpendicular line of the upper chord 11 and the lower chord 12 on the plane formed by the upper chord 11 and the lower chord 12, and is distributed in a "w" shape or a "v" shape between the upper chord 11 and the lower chord 12. The bearing capacity and overall stability of the steel truss 20 are improved and the stress distribution is optimized, so that the load can be better and evenly transferred to the upper chord 11 and the lower chord 12 to avoid local stress concentration. The overall structure of the steel truss 20 is made more stable. Furthermore, the angle formed by the web reinforcement 14 between the upper chord 11 and the lower chord 12 ranges from 30° to 75°, and preferably, the angle is 60°. The web reinforcement 14 forms an equilateral triangle structure with the upper chord 11 and the lower chord 12, which is more stable than other triangular equilateral triangle structures, thereby ensuring the overall stability and strength of the steel truss 20.

[0036] In this embodiment, the distribution ribs 21 are preferably located inside the upper chord 11 and the lower chord 12. Specifically, the connection point between the distribution ribs 21 and the upper chord 11 is located within the bend formed by the web reinforcement 14, or the connection point between the distribution ribs 21 and the lower chord 12 is located within the bend formed by the web reinforcement 14. The connection between the distribution ribs 21, the upper chord 11, and the web reinforcement 14 increases the shear resistance of the distribution ribs 21 and improves overall stability.

[0037] In this embodiment, the spacing between the monolithic trusses 10 is preferably 600-800 mm. Furthermore, the web reinforcement 14 and the upper and lower chords 11 and 12, the support reinforcement 13 and the upper and lower chords 11 and 12, and the distribution reinforcement 21 and the upper and lower chords 11 and 12 are all welded together, forming a multi-point tie-in grid with a 200*200 spacing. This eliminates the need for lashing, facilitating subsequent processing to form a composite slab shear wall and preventing mold bursting during post-concrete pouring. This also prevents deformation of the steel trusses 20 due to foot traffic during the concrete pouring process, which could affect the quality of the shear wall.

[0038] The specific method of welding the single truss 10 through the distribution bars 21 to form the steel truss 20 is as follows:

[0039] According to the designed spacing, the single-piece trusses 10 are arranged using automated mechanical equipment, and the distribution reinforcement 21 is passed through the inner side of the upper chord reinforcement 11 and the lower chord reinforcement 12 of the single-piece trusses 10 according to the designed spacing. Automatic welding equipment is used to clamp each intersection and weld them firmly to form a stable spatial grid structure, which is the steel truss 20.

[0040] like Figure 3 As shown, an embodiment of the technical solution of the present invention provides a composite plate shear wall, including a steel truss 20 structure and a wall 30 as provided in the above embodiment, the steel truss 20 and the wall 30 together form a shear wall, and the upper chord 11 and the lower chord 12 of the steel truss 20 structure are embedded in the wall 30.

[0041] The wall 30 has two layers, namely a first wall 30 and a second wall 30. The first wall and the second wall are arranged in parallel. Specifically, the upper chord reinforcement 11 is embedded in the first wall, and the lower chord reinforcement 12 is embedded in the second wall.

[0042] The thickness of the first wall and the second wall is 30 to 70 mm respectively. Preferably, the thickness of the first wall and the second wall is 50 mm.

[0043] The wall 30 is made of concrete. Specifically, concrete is poured on the steel trusses 20 to form a composite plate shear wall.

[0044] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0045] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0046] Through the description of the above embodiments, those skilled in the art can clearly understand that the above implementation method can be implemented by means of software plus the necessary general hardware platform, or of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0047] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which are all within the protection of the present invention.

Claims

1. A steel truss structure, characterized in that: including multiple monolithic trusses; The single-piece truss comprises: upper and lower chords arranged in parallel and at a certain distance; supporting steel bars vertically welded to both ends of the upper and lower chords to seal the ends of the upper and lower chords; web bars obliquely arranged between the upper and lower chords and welded to the upper and lower chords, wherein the web bars are continuous broken line structures, and the inclination directions of two adjacent web bars are different; Multiple single-piece trusses are arranged in parallel and fixed by welding through distribution ribs. Multiple upper chord ribs and lower chord ribs are respectively perpendicular to the distribution ribs. The distribution ribs connected to the upper chord ribs and the distribution ribs connected to the lower chord ribs can form a planar structure corresponding to each other in pairs, which is perpendicular to the upper chord ribs and the lower chord ribs.

2. The steel truss structure according to claim 1, characterized in that: The web reinforcements are axially symmetrically distributed along the perpendicular lines of the upper and lower chords on the plane formed by the upper and lower chords, and are distributed in a "W" shape or a "V" shape between the upper and lower chords.

3. The steel truss structure according to claim 1, characterized in that: The distribution ribs are respectively located on the inner sides of the upper chord ribs and the lower chord ribs.

4. The steel truss structure according to claim 1, characterized in that: The connection point between the distribution reinforcement and the upper chord reinforcement or the lower chord reinforcement is located in the bent structure formed by the web reinforcement.

5. The steel truss structure according to claim 1, characterized in that: The spacing between the single-piece trusses is 600-800 mm.

6. A composite plate shear wall, characterized in that: It comprises the steel truss structure and the wall body as described in any one of claims 1 to 5, wherein the steel truss structure and the wall body together form the shear wall, and the upper chord and the lower chord of the steel truss structure are embedded in the wall body.

7. The composite plate shear wall according to claim 6, characterized in that: The wall is made of concrete.

8. The composite plate shear wall according to claim 6, wherein: The wall has two layers, namely a first wall and a second wall, and the first wall and the second wall are arranged in parallel.

9. The composite plate shear wall according to claim 8, characterized in that: The upper chord reinforcement is embedded in the first wall, and the lower chord reinforcement is embedded in the second wall.

10. The composite plate shear wall according to claim 8, wherein: The thickness of the first wall and the second wall are respectively 30-70 mm.

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