Steel bar truss convenient to construct

Abstract

The utility model relates to the field of building construction, in particular to a steel bar truss convenient to construct, which comprises a bottom die steel plate, an upper chord steel bar and a support frame, and a first plate edge agraffe and a second plate edge agraffe are fixedly mounted on two sides of the bottom die steel plate through a first inclined plate and a second inclined plate respectively. The first plate edge agraffe and the second plate edge agraffe are fixedly connected through bolts after being connected in a clamped mode, the connecting structure and mode are simple, operation is easy, construction is convenient, the supporting frame, the supporting base, the inclined supporting plate and the top supporting plate are arranged between the bottom die steel plate and the steel bar truss, and the web member steel bars on the two sides are supported and reinforced; and the overall structural strength and the bearing performance of the steel bar truss plate are effectively enhanced.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a steel bar truss convenient for construction. Background Technique

[0002] The steel bar truss floor slab is a combined bearing slab formed by welding a steel bar truss composed of upper chords, lower chords and web members with a floor slab. It has the advantages of fast construction progress, less on-site steel bar binding work and construction safety, and is widely used in building construction.

[0003] However, in the prior art, there are the following defects:

[0004] When the existing steel bar trusses are used, adjacent steel bar truss plates need to be connected to each other to improve the overall structural strength and effective bearing capacity. However, the connection structure between the existing steel bar trusses is complex, time-consuming and laborious during construction, and it is difficult to meet the requirements of efficient construction of steel bar trusses and is inconvenient to use. Content of the Utility Model

[0005] The purpose of the utility model is to provide a steel bar truss convenient for construction, so as to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A steel bar truss convenient for construction, including a bottom die steel plate, upper chord steel bars and a support frame. The two ends of the bottom die steel plate are fixedly installed with a first plate edge hook and a second plate edge hook through a first inclined plate and a second inclined plate respectively. The first plate edge hook and the second plate edge hook are snap-connected. A plurality of first threaded through holes and second threaded through holes are respectively and evenly opened on the first plate edge hook and the second plate edge hook. The first threaded through holes and the second threaded through holes are correspondingly arranged and are sequentially thread-connected with bolts. A fastening nut is threadedly installed at the end of the bolt.

[0007] Adopting the above technical solution, the two ends of the steel bar truss plate of this solution are designed with a corresponding first plate edge hook and a second plate edge hook. The two can be first snap-connected to determine the position, and then fixed by threaded connection with bolts, ensuring stable and firm connection between the two, and can be quickly installed and disassembled, ensuring convenience for construction, facilitating replacement and repair, and extending the service life.

[0008] The cross-sectional shape of the first plate edge hook is an inverted "C" shape, the cross-sectional shape of the second plate edge hook is a "C" shape, the length of the second inclined plate is greater than the length of the first inclined plate, and the second plate edge hook is located above the first plate edge hook.

[0009] By adopting the above technical solution, the first plate edge hook and the second plate edge hook are symmetrically arranged, which facilitates the corresponding engagement of the two and facilitates connection. The connection structure and method are simple, which is convenient for construction workers to operate and ensure fast and efficient work.

[0010] A plurality of grooves are evenly arranged on the top of the bottom formwork steel plate, and the cross-sectional shape of the grooves is arc-shaped. The lower chord steel bars are clamped and installed inside the grooves and then the two are welded and fixed. Support cross bars are fixed on the tops of the two ends of the adjacent two lower chord steel bars.

[0011] The above technical solution is adopted, in which the lower chord steel bar is installed in the groove and then the two are welded, which makes it easy to quickly determine the installation position and ensures a firm and stable connection, can prevent falling off, and enhances the overall stability.

[0012] A support vertical reinforcement is welded in the middle of the top of the support transverse reinforcement, the bottoms of the two ends of the upper chord reinforcement are respectively welded to the tops of the two support vertical reinforcements, and a number of web reinforcements are evenly welded on both sides of the upper chord reinforcement, and the web reinforcement is an inverted "V" shape.

[0013] By adopting the above technical solution, the web reinforcements are located on both sides of the upper chord reinforcements, which play a supporting and reinforcing role and improve the overall structural strength.

[0014] The sharp corners of the top of the web reinforcement are chamfered smoothly, and connecting blocks are provided at both ends of the bottom of the web reinforcement. The connecting blocks are made of stainless steel, and the bottom of the connecting block is welded to the top of the bottom mold steel plate. Support frames are provided between the web reinforcements.

[0015] By adopting the above technical solution, the support frame is located on the inner side of the steel truss, which plays a supporting and reinforcing role, thereby enhancing the structural strength and overall bearing capacity.

[0016] The support frame includes a support seat, and both ends and the middle of the bottom of the support seat are fixedly connected to the top of the bottom mold steel plate through vertical support plates. Both sides of the support seat are provided with inclined surfaces, and the inclined surfaces are tightly abutted against the inner side of the web steel bars.

[0017] By adopting the above technical solution, the vertical support plate supports the support seat, so that the support seat is located at a suitable height. The inclination angles of the inclined surfaces on both sides of the support seat are the same as the inclination angles of the web reinforcement, and the two can fit tightly.

[0018] An inclined support plate is symmetrically arranged on both sides in the middle of the top of the support seat, and a top support plate is fixedly installed on one end of the inclined support plate away from the support seat. The side of the top support plate away from the inclined support plate is fixedly connected to the inner side of the top of the web steel bar.

[0019] By adopting the above technical solution, the inclined support plate and the top support plate support and strengthen the web reinforcement on both sides, thereby improving the overall structural strength of the steel truss.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The steel truss plate of the utility model is provided with a first plate edge hook and a second plate edge hook at both ends respectively. Two adjacent steel truss plates can be installed by engaging the first plate edge hook and the second plate edge hook and then fixed by bolt thread connection. The connection method and structure are simple, easy to install and convenient for construction operation. A support frame is provided on the inner side of the steel truss to play a supporting role, thereby enhancing the overall structural strength and bearing capacity of the steel truss. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the bottom mold steel plate of the present utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the support frame of the present utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure of the first board edge hook and the second board edge hook of the utility model.

[0026] In the figure: 1. Bottom formwork steel plate; 2. Web reinforcement; 3. Upper chord reinforcement; 4. Support vertical reinforcement; 5. Lower chord reinforcement; 6. Support frame; 7. First inclined plate; 8. First plate edge hook; 9. Support transverse reinforcement; 10. Second inclined plate; 11. Second plate edge hook; 12. First threaded through hole; 13. Groove; 14. Second threaded through hole; 15. Connecting block; 16. Support seat; 17. Inclined support plate; 18. Top support plate; 19. Inclined surface; 20. Vertical support plate; 21. Bolt; 22. Fastening nut. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-4, the utility model provides a steel bar truss convenient for construction, which includes a bottom die steel plate 1, upper chord steel bars 3 and a support frame 6. The two ends of the bottom die steel plate 1 are respectively fixedly installed with a first plate edge hook 8 and a second plate edge hook 11 through a first inclined plate 7 and a second inclined plate 10. The first plate edge hook 8 and the second plate edge hook 11 are snap-connected. A number of first threaded through holes 12 and second threaded through holes 14 are respectively and evenly opened on the first plate edge hook 8 and the second plate edge hook 11. The first threaded through holes 12 and the second threaded through holes 14 are correspondingly arranged and are sequentially thread-connected with bolts 21. A fastening nut 22 is thread-installed at the end of the bolt 21. The first inclined plate 7 and the second inclined plate 10 are horizontally symmetrical.

[0029] The cross-sectional shape of the first plate edge hook 8 is an inverted "匚" shape, and the cross-sectional shape of the second plate edge hook 11 is a "匚" shape. The length of the second inclined plate 10 is greater than that of the first inclined plate 7. The second plate edge hook 11 is located above the first plate edge hook 8. After the first plate edge hook 8 and the second plate edge hook 11 are snap-connected, they are located above the second plate edge hook 11.

[0030] A number of grooves 13 are evenly opened on the top of the bottom die steel plate 1. The cross-sectional shape of the grooves 13 is arc-shaped. A lower chord steel bar 5 is snap-fitted and welded inside the grooves 13. Support cross bars 9 are fixedly installed at the tops of the two ends of adjacent lower chord steel bars 5. The concave arc of the grooves 13 is the same as the bottom arc of the lower chord steel bar 5, and the two are closely fitted.

[0031] A support vertical bar 4 is welded in the middle of the top of the support cross bar 9. The bottoms of the two ends of the upper chord steel bar 3 are respectively welded to the tops of the two support vertical bars 4. A number of web bars 2 are evenly welded on both sides of the upper chord steel bar 3. The web bars 2 are in an inverted "V" shape. The bottom of the support vertical bar 4 is welded to the middle of the support cross bar 9.

[0032] The sharp corners at the tops of the web bars 2 are subjected to smooth chamfering treatment. Connecting blocks 15 are provided at both ends of the bottoms of the web bars 2. The connecting blocks 15 are made of stainless steel. The bottoms of the connecting blocks 15 are welded to the top of the bottom die steel plate 1. A support frame 6 is provided between the web bars 2. The two sides of the bottoms of the web bars 2 are reinforced through the connecting blocks 15.

[0033] The support frame 6 includes a support seat 16. The two ends and the middle of the bottom of the support seat 16 are fixedly connected to the top of the bottom die steel plate 1 through vertical support plates 20. Inclined surfaces 19 are provided on both sides of the support seat 16. The inclined surfaces 19 are in close contact with the inner sides of the web bars 2. The two sides of the support seat 16 play a supporting role in the middle of the web bars 2.

[0034] An inclined support plate 17 is symmetrically arranged on both sides in the middle of the top of the support seat 16, and a top support plate 18 is fixedly installed on the end of the inclined support plate 17 away from the support seat 16. The side of the top support plate 18 away from the inclined support plate 17 is fixedly connected to the inner side of the top of the web steel bar 2. The inclined support plate 17 and the top support plate 18 support the top of the web steel bar 2.

[0035] Working principle: When the present invention is used, first engage the first plate edge hook 8 and the second plate edge hook 11 to determine the position, align the first threaded through hole 12 and the second threaded through hole 14, and use the bolt 21 to threadably install it in the first threaded through hole 12 and the second threaded through hole 14 in sequence for fixed connection, and then threadably install the fastening nut 22 at the end of the bolt 21 for reinforcement to ensure that the connection between the two adjacent steel truss plates is firm. The two sides of the support seat 16 support the middle part of the web steel bar 2, and the inclined support plate 17 and the top support plate 18 support the top of the web steel bar 2. The support frame 6 enhances the overall structural strength and bearing capacity of the steel truss.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel truss convenient for construction, comprising a bottom formwork steel plate (1), an upper chord steel bar (3) and a support frame (6), characterized in that: At both ends of the bottom die steel plate (1), a first plate edge hook (8) and a second plate edge hook (11) are fixedly installed through a first inclined plate (7) and a second inclined plate (10) respectively. The first plate edge hook (8) and the second plate edge hook (11) are snap-connected. A number of first threaded through holes (12) and second threaded through holes (14) are evenly opened on the first plate edge hook (8) and the second plate edge hook (11) respectively. The first threaded through holes (12) and the second threaded through holes (14) are arranged corresponding to each other and are sequentially thread-connected with bolts (21). A fastening nut (22) is threadedly installed at the end of the bolt (21).

2. The steel bar truss convenient for construction according to claim 1, characterized in that: The cross-sectional shape of the first plate edge hook (8) is an inverted "C" shape, the cross-sectional shape of the second plate edge hook (11) is a "C" shape, the length of the second inclined plate (10) is greater than the length of the first inclined plate (7), and the second plate edge hook (11) is located above the first plate edge hook (8).

3. The steel bar truss convenient for construction according to claim 1 is characterized in that: A number of grooves (13) are evenly opened on the top of the bottom die steel plate (1). The cross-sectional shape of the grooves (13) is arc-shaped. After a lower chord steel bar (5) is snap-fitted and installed inside the grooves (13), the two are welded and fixed. Support cross bars (9) are fixedly installed at the tops of both ends of adjacent two lower chord steel bars (5).

4. The steel bar truss convenient for construction according to claim 3 is characterized in that: A support vertical bar (4) is welded in the middle at the top of the support cross bar (9). The bottoms of both ends of the upper chord steel bar (3) are respectively welded with the tops of the two support vertical bars (4). A number of web bars (2) are evenly welded on both sides of the upper chord steel bar (3). The web bars (2) are in an inverted "V" shape.

5. The steel bar truss convenient for construction according to claim 4 is characterized in that: The sharp corners at the tops of the web bars (2) are rounded. Connection blocks (15) are provided at both ends of the bottoms of the web bars (2). The material of the connection blocks (15) is stainless steel. The bottoms of the connection blocks (15) are welded with the top of the bottom die steel plate (1). A support frame (6) is provided between the web bars (2).

6. The steel bar truss convenient for construction according to claim 1, characterized in that: The support frame (6) includes a support base (16). Both ends and the middle at the bottom of the support base (16) are fixedly connected with the top of the bottom die steel plate (1) through vertical support plates (20). Inclined surfaces (19) are provided on both sides of the support base (16). The inclined surfaces (19) are in close contact with the inner sides of the web bars (2).

7. The steel bar truss convenient for construction according to claim 6, characterized in that: Inclined support plates (17) are symmetrically arranged on both sides from the middle at the top of the support base (16). A top support plate (18) is fixedly installed at one end of the inclined support plate (17) away from the support base (16). One side of the top support plate (18) away from the inclined support plate (17) is fixedly connected with the inner side at the top of the web bar (2).

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