A riveted precast steel base plate pallet with spiral stirrups composite beam

Abstract

This invention belongs to the field of composite beams, specifically a riveted precast steel base plate tray spiral stirrup composite beam, including a steel column, which is composed of several annular arrays of steel bars. The interior of the steel column contains a spiral stirrup body, and the outer wall of the steel column is provided with a snap-fit ​​assembly and a hoop assembly for shaping. A tray body is located at the bottom of the steel column, and a base plate is located at the bottom of the tray body. A second base plate is located at the bottom of the first base plate, and the first and second base plates are connected by rivets. Several main steel columns are located at the bottom of the second base plate. By using snap-fit ​​and hoop assemblies on the outside of the steel column, it is easier for workers to fabricate the steel column, making the fabrication process simpler. By using support components at the bottom of the steel column, the steel column remains stable, allowing it to be continuously placed on the ground surface with enhanced stability.

Description

Technical Field

[0001] This invention belongs to the field of composite beam technology, specifically a prefabricated steel base plate tray with spiral stirrups and riveted connections. Background Technology

[0002] Composite beams are beams made of two different materials or through different processes. Modern composite beams are generally made of steel wire and steel bars, and finally cast with concrete to form a reinforced concrete structure. The most common composite beams in buildings are vertical beams and horizontal beams. Both vertical and horizontal beams are structures used to bear weight. After the composite beam is fixed in the building location, its position is secured by casting concrete.

[0003] The existing reinforced column portion of vertical composite beams is usually shaped using reinforcing bars and stirrups, and secured with steel wire. During the fabrication of the reinforced column, manual intervention is required during shaping, and multiple steps of tightening the steel wire are performed. Continuous fabrication of the reinforced column will cause wrist soreness for workers, resulting in decreasing efficiency and hindering the fabrication of the reinforced column. Furthermore, when the vertical composite beam is put into use on the construction site, the bottom end of the vertical composite beam cannot maintain continuous stability with the ground surface. It is usually pre-fixed with concrete, which makes installation difficult. Summary of the Invention

[0004] To address the problems of repeated tightening, high manufacturing difficulty, and poor stability in existing steel column fabrication techniques, this invention provides a prefabricated steel base plate tray spiral stirrup composite beam with riveted connection. Through the snap-fit ​​components and stirrup components, the fabrication of the steel column is made easier, and by setting a support component at the bottom of the steel column, the steel column can be continuously placed on the ground surface.

[0005] To achieve the above objectives, the specific technical solution is as follows: A riveted precast steel base plate tray spiral stirrup composite beam includes a steel column, the steel column is composed of several steel ring arrays, the interior of the steel column is provided with a spiral stirrup body, the outer wall of the steel column is provided with a snap-fit ​​assembly, and the outer wall of the steel column is also provided with a stirrup assembly for shaping.

[0006] The bottom end of the steel column is provided with a tray body, the bottom of the tray body is provided with a base plate one, the bottom of the base plate one is provided with a base plate two, the base plate one and the base plate two are connected by rivets, the bottom of the base plate two is provided with several main steel columns, and a steel plate is also provided on one side of the outer wall of the tray body. The tray body and the steel plate are fixedly connected by bolts.

[0007] The top end of the spiral stirrup body is connected to a support rod, and several crossbars are fixed to the top end of the support rod. Each crossbar is provided with a support block at its end.

[0008] Furthermore, the top of the tray body has several insertion holes, and after the reinforcing bar is inserted into the insertion holes, the reinforcing bar column remains perpendicular to the tray body.

[0009] Furthermore, the snap-fit ​​component includes:

[0010] A steel wire is connected to a positioning block corresponding to a reinforcing bar. Several protrusions are symmetrically arranged on the outer wall of the reinforcing bar. Two inserts are symmetrically arranged on the inner wall of each positioning block. When the positioning block is connected to the reinforcing bar, the inserts can be inserted between two adjacent protrusions on the outer wall of the reinforcing bar.

[0011] Furthermore, the hoop assembly includes:

[0012] Several steel bar hoops are provided, each of which has four rods fixed to its bottom and a hole that mates with the rods at its top. The rods are threaded on their outer surfaces.

[0013] Furthermore, several pins are fixed to the bottom of the steel reinforcement sleeve located at the lowest end of the steel reinforcement column. The top of the tray body is provided with pin holes that cooperate with the pins. Threaded holes are also provided on the side wall of the tray body. Each threaded hole communicates with the pin hole and is perpendicular to it. Each threaded hole is provided with a fastening bolt for fastening the pin.

[0014] Furthermore, a support plate is fixed to the bottom of the steel plate, and four secondary steel columns are fixed to the bottom of the support plate. The support plate and the secondary steel columns are fixed by welding. The main steel columns and the secondary steel columns have the same length. A slot is also opened at one end of the steel plate, and a through hole is opened on the side wall of the steel plate. The through hole communicates with the slot.

[0015] Furthermore, a stainless steel plate is provided on the top of the steel plate, and a stabilizing rod is provided on the top of the stainless steel plate. A fixing rod is provided on the top side wall of the stabilizing rod, and a support plate is fixed to the end of the fixing rod. The support plate and the fixing rod are fixedly connected by bolts, and the inner arc side wall of the support plate can contact the outer wall of the reinforcing bar sleeve.

[0016] Furthermore, a connecting sleeve is provided between the support rod and the top extension end of the spiral stirrup body. The end of the connecting sleeve has an arc-shaped groove, and the extension end of the spiral stirrup body can be inserted into the groove. A locking bolt is provided on the connecting sleeve.

[0017] Furthermore, each of the support blocks has a groove at its end, and the support block engages with the top of the reinforcing bar.

[0018] Compared with the prior art, the beneficial effects of the present invention are at least as follows:

[0019] 1) By setting snap-fit ​​components and hoop components on the outside of the steel column, the snap-fit ​​components are used to shape the steel column first during the shaping process, and then the hoop components are put on the outside of the steel column. During the shaping process, it is not necessary to repeatedly twist the steel wire and other steel structures, avoiding the problem of continuous wrist fatigue of workers. This makes it easier for workers to make steel columns, making the production of steel columns easier, reducing the production difficulty, and shortening the production cycle.

[0020] 2) By setting a support component at the bottom of the steel column, the support component mainly consists of a tray body and a rigid base plate. The rigid base plate is placed on the ground surface in advance, and the steel column is connected to the tray body by plugging. After the tray body and the rigid base plate are fixed, the steel column can remain stable, so that the steel column can be continuously placed on the ground surface. The stability is stronger, which is conducive to the construction team to set up multiple composite beams on the foundation and then pour concrete in a unified manner, which helps to improve work efficiency. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the crossbar, support block, and connecting sleeve of the present invention;

[0023] Figure 3 This is a perspective view of the support component of the present invention;

[0024] Figure 4 This is a structural schematic diagram of the crossbar, reinforcing bar column, and spiral stirrup body of the present invention;

[0025] Figure 5 This is a schematic diagram of the steel reinforcement sleeve of the present invention;

[0026] Figure 6 This is a structural schematic diagram of the snap-fit ​​component and the reinforcing bar of the present invention;

[0027] Figure 7 This is the present invention. Figure 6 Enlarged view of section A in the middle;

[0028] Figure 8 This is a schematic diagram of the top plate of the present invention.

[0029] The following components are shown in the diagram: 1. Rebar hoop; 2. Rod body; 2. Pin; 3. Steel wire; 4. Positioning block; 5. Rebar; 52. Protrusion; 6. Insert block; 7. Spiral hoop body; 8. Connecting sleeve; 81. Locking bolt; 9. Support rod; 10. Crossbar; 11. Support block; 12. Groove; 13. Tray body; 131. Insertion hole; 132. Pin hole; 133. Fastening bolt; 14. Base plate one; 15. Base plate two; 16. Main steel column; 17. Steel plate; 18. Through hole; 19. Slot; 20. Support plate; 21. Secondary steel column; 22. Stainless steel plate; 23. Fixing rod; 24. Support plate; 25. Stabilizing rod; 26. Top plate; 27. Hole. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figures 1-8 As shown, a riveted precast steel base plate tray spiral stirrup composite beam in this embodiment includes a steel column, which is composed of a ring array of several steel bars 5. The interior of the steel column is provided with a spiral stirrup body 7, the outer wall of the steel column is provided with a snap-fit ​​component, and the outer wall of the steel column is also provided with a stirrup component for shaping.

[0033] The top end of the spiral stirrup body 7 is connected to a support rod 9, and several horizontal bars 10 are fixed to the top end of the support rod 9. Each horizontal bar 10 is provided with a support block 11 at its end. Each support block 11 is provided with a groove 12 at its end, and the support block 11 is engaged with the top end of the reinforcing bar 5.

[0034] Specifically, several crossbars 10 form a disc-shaped component. The disc-shaped component uses the supporting action of the spiral stirrup body 7 to support the support rod 9. The support rod 9 supports the disc-shaped component and the support block 11, thereby inserting the end of the reinforcing bar 5 into the groove 12 of the support block 11.

[0035] Furthermore, the snap-fit ​​assembly includes: a steel wire 3, on which a positioning block 4 corresponding to the reinforcing bar 5 is connected; a number of protrusions 51 are symmetrically arranged on the outer wall of the reinforcing bar 5; and two inserts 6 are symmetrically arranged on the inner wall of each positioning block 4. When the positioning block 4 is connected to the reinforcing bar 5, the inserts 6 can be inserted between two adjacent protrusions 51 on the outer wall of the reinforcing bar 5. After multiple positioning blocks 4 are inserted into the reinforcing bar 5, the steel wire 3 forms a ring to ensure the stability of the positioning blocks 4.

[0036] Specifically, the protrusion 51 is inclined on the outer wall of the reinforcing bar 5. During the process of connecting the positioning block 4 with the reinforcing bar 5, the positioning block 4 needs to move from top to bottom and tilt. The insert 6 on the inner wall of the positioning block 4 is inserted obliquely into the space between two adjacent protrusions 51 on the outer wall of the reinforcing bar 5. After that, when the external force pulls the positioning block 4 horizontally, the positioning block 4 will not detach from the reinforcing bar 5, and the positioning block 4 will not slide downward due to its own weight.

[0037] Furthermore, the hoop assembly includes: several steel reinforcement hoops 1, each steel reinforcement hoop 1 having four rods 2 fixed to its bottom, and each steel reinforcement hoop 1 having a hole at its top that mates with the rods 2, and the outer surface of the rods 2 having threads; specifically, as the steel reinforcement hoop 1 moves downward along the steel reinforcement 5 of the steel column, after being supported by the rods 2, there is a distance between two adjacent steel reinforcement hoops 1 to ensure that the steel reinforcement hoop 1 can remain stable outside the steel reinforcement column, without overlapping or loosening, making the structure of the steel reinforcement column more robust.

[0038] Furthermore, several pins 211 are fixed to the bottom of the steel reinforcement sleeve 1 located at the lowest end of the steel column. The top of the tray body 13 is provided with pin holes 132 that cooperate with the pins 211. Threaded holes are also provided on the side wall of the tray body 13. Each threaded hole communicates with the pin hole 132 and is perpendicular to it. Each threaded hole is provided with a fastening bolt 133 for fastening the pins 211. Specifically, the pins 211 have the function of supporting the entire steel column and can also maintain the stability of the spiral stirrup body 7 inside the steel column. With the support of multiple pins 211, the stability is stronger.

[0039] Specifically, a top plate 26 is provided at the top of the steel column. After the steel column is fixed and the concrete is poured, a portion of the top of the steel bar 5 is still exposed to the outside. By aligning the hole 27 at the top of the top plate 26 with the top of the steel bar 5 and placing the top plate 26, the top plate 26 can be fitted onto the top of the steel column. The top plate 26 can also protect the exposed steel bar 5 from long-term rain.

[0040] Furthermore, a connecting sleeve 8 is provided between the support rod 9 and the top extension end of the spiral stirrup body 7. The end of the connecting sleeve 8 has an arc-shaped groove, into which the extension end of the spiral stirrup body 7 can be inserted. A locking bolt 81 is provided on the connecting sleeve 8. Specifically, the connecting sleeve 8 is an arc-shaped tube, and the spiral stirrup body 7 is a spiral structure made of steel reinforcement. The top extension end of the spiral stirrup body 7 is an arc-shaped solid tube, which can be inserted into the arc-shaped groove in the connecting sleeve 8. Then, the locking bolt 81 is tightened with a wrench to secure the spiral stirrup body 7 and the connecting sleeve 8.

[0041] Example 2

[0042] like Figures 1-8 As shown, a pallet body 13 is provided at the bottom of the steel column, a bottom plate 14 is provided at the bottom of the pallet body 13, a bottom plate 2 15 is provided at the bottom of the bottom plate 14, the bottom plate 14 and the bottom plate 2 15 are connected by rivets, a number of main steel columns 16 are provided at the bottom of the bottom plate 2 15, and a steel plate 17 is also provided on one side of the outer wall of the pallet body 13, and the pallet body 13 and the steel plate 17 are fixedly connected by bolts.

[0043] The top of the tray body 13 has several insertion holes 131. After the steel bar 5 is inserted into the insertion holes 131, the steel bar column remains perpendicular to the tray body 13.

[0044] A support plate 20 is fixed to the bottom of the steel plate 17, and four secondary steel columns 21 are fixed to the bottom of the support plate 20. The support plate 20 and the secondary steel columns 21 are fixed by welding. The main steel column 16 and the secondary steel column 21 have the same length. A slot 19 is also opened at one end of the steel plate 17. A through hole 18 is opened on the side wall of the steel plate 17, and the through hole 18 communicates with the slot 19.

[0045] Specifically, the length of the steel plate 17 is selected according to the actual use. Different numbers of steel plates 17 can be set in different positions on the outer wall of the pallet body 13. The end of each steel plate 17 can be used to connect to the steel plate 17 of another composite beam, so that multiple support groups with pallet bodies 13 can be set on the building foundation to support more steel columns, thereby meeting the building requirements.

[0046] A stainless steel plate 22 is also provided on the top of the steel plate 17. A stabilizing rod 25 is provided on the top of the stainless steel plate 22. A fixing rod 23 is provided on the top side wall of the stabilizing rod 25. A support plate 24 is fixed to the end of the fixing rod 23. The support plate 24 and the fixing rod 23 are fixedly connected by bolts. The inner arc side wall of the support plate 24 can contact the outer wall of the reinforcing steel sleeve 1. Specifically, the stabilizing rod 25 is used to support the outer wall of the reinforcing steel sleeve 1, thereby supporting the reinforcing steel column. In the construction process, after the composite beam is fixed on the foundation, before concrete is poured, the stabilizing rod 25 is used to maintain the overall stability of the composite beam, making the composite beam safer and more reliable.

[0047] Through the above technical solution: When manufacturing the composite beam, the extended end of the spiral stirrup body 7 is inserted into the groove of the connecting sleeve 8, and then the locking bolt 81 is tightened. The locking bolt 81 locks the extended end of the spiral stirrup body 7 together with the connecting sleeve 8. Then, a reinforcing bar 5 is inserted into the groove 12 of each support block 11. At this time, the top end of the reinforcing bar 5 is inserted into the groove 12, and then the bottom end of the reinforcing bar 5 is inserted into the insertion hole 131 of the tray body 13. At this time, each reinforcing bar 5 is perpendicular to the tray body 13, and the spiral stirrup body 7 is wrapped by multiple reinforcing bars 5. The steel column is made, and the bottom of the base plate 14 is placed on the flat surface. The steel column is parallel to the ground. The steel hoop 1 is put on the top of the steel column and slides down the steel bar 5. Multiple steel hoop 1s are put in one by one. Then, the bar 2 at the bottom of the upper steel hoop 1 is manually inserted into the hole at the top of the lower steel hoop 1 and pressed tightly by hand. The two adjacent steel hoop 1s support each other and the steel hoop 1s hold the steel column in shape so that the steel column will not fall apart. Finally, the positioning block 4 on the steel wire 3 is inserted into the steel bar 5. The two ends of the steel wire 3 are wrapped together and tightened to form a composite beam.

[0048] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0049] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A precast steel floor tray spiral tie composite beam of rivet connection, comprising a steel column, characterized in that: The steel column is composed of a ring array of several steel bars (5), the interior of the steel column is provided with a spiral stirrup body (7), the outer wall of the steel column is provided with a snap-fit ​​assembly, and the outer wall of the steel column is also provided with a hoop assembly for shaping. The bottom end of the steel column is provided with a tray body (13), the bottom of the tray body (13) is provided with a bottom plate one (14), the bottom of the bottom plate one (14) is provided with a bottom plate two (15), the bottom plate one (14) and the bottom plate two (15) are connected by rivets, the bottom of the bottom plate two (15) is provided with several main steel columns (16), and a steel plate (17) is also provided on one side of the outer wall of the tray body (13). The tray body (13) and the steel plate (17) are fixedly connected by bolts. The top end of the spiral stirrup body (7) is connected to a support rod (9), and the top end of the support rod (9) is fixed with several crossbars (10), and each crossbar (10) is provided with a support block (11) at its end. The hoop assembly includes: Several steel reinforcement sleeves (1), each steel reinforcement sleeve (1) has four rods (2) fixed at its bottom, and each steel reinforcement sleeve (1) has a hole at its top that matches the rods (2), and the outer surface of the rods (2) is provided with threads; The bottom of the steel reinforcement sleeve (1) located at the lowest end of the steel column is fixed with several pins (211). The top of the tray body (13) is provided with pin holes (132) that cooperate with the pins (211). Threaded holes are also provided on the side wall of the tray body (13). Each threaded hole communicates with the pin hole (132) and is perpendicular to it. Each threaded hole is provided with a fastening bolt (133) for fastening the pins (211).

2. The riveted precast steel base plate pallet spiral stirrup composite beam according to claim 1, characterized in that: The top of the tray body (13) is provided with several insertion holes (131). After the steel bar (5) is inserted into the insertion hole (131), the steel bar column remains perpendicular to the tray body (13).

3. The riveted precast steel base plate pallet spiral stirrup composite beam according to claim 1, characterized in that: The snap-fit ​​assembly includes: A steel wire (3) is connected to a positioning block (4) corresponding to a reinforcing bar (5). Several protrusions (51) are symmetrically arranged on the outer wall of the reinforcing bar (5). Two inserts (6) are symmetrically arranged on the inner wall of each positioning block (4). When the positioning block (4) is connected to the reinforcing bar (5), the inserts (6) can be inserted between two adjacent protrusions (51) on the outer wall of the reinforcing bar (5).

4. The riveted precast steel base plate pallet spiral stirrup composite beam according to claim 1, characterized in that: The bottom of the steel plate (17) is also fixed with a support plate (20), and the bottom of the support plate (20) is fixed with four secondary steel columns (21). The support plate (20) and the secondary steel columns (21) are fixed by welding. The main steel column (16) and the secondary steel column (21) have the same length. A slot (19) is also provided at one end of the steel plate (17). A through hole (18) is provided on the side wall of the steel plate (17). The through hole (18) communicates with the slot (19).

5. The riveted precast steel base plate pallet spiral stirrup composite beam according to claim 1, characterized in that: The top of the steel plate (17) is also provided with a stainless steel plate (22), and the top of the stainless steel plate (22) is provided with a stabilizing rod (25). The top side wall of the stabilizing rod (25) is provided with a fixing rod (23), and the end of the fixing rod (23) is fixed with a support plate (24). The support plate (24) and the fixing rod (23) are fixedly connected by bolts. The inner arc side wall of the support plate (24) can contact the outer wall of the reinforcing bar sleeve (1).

6. The riveted precast steel base plate pallet spiral stirrup composite beam according to claim 1, characterized in that: A connecting sleeve (8) is provided between the top extension end of the support rod (9) and the spiral stirrup body (7). The end of the connecting sleeve (8) is provided with an arc-shaped groove. The extension end of the spiral stirrup body (7) can be inserted into the groove. A locking bolt (81) is provided on the connecting sleeve (8).

7. A riveted precast steel base plate pallet spiral stirrup composite beam according to claim 1, characterized in that: Each of the support blocks (11) has a groove (12) at its end, and the support block (11) is engaged with the top of the reinforcing bar (5).

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