Prestressed steel pipe truss laminated slab resting assembly and construction process

Abstract

The application discloses a prestressed steel pipe truss composite slab supporting assembly and a construction process, and relates to the technical field of fabricated buildings, which comprises a supporting pipe, a square pipe is slidably arranged on the supporting pipe; a lifting plate is slidably arranged on the supporting pipe, a plurality of pressing rods are fixedly arranged on the lifting plate, the supporting pipe is provided with a plurality of push blocks, the plurality of push blocks are each provided with an inclined groove, the plurality of pressing rods and the plurality of inclined grooves are in one-to-one correspondence, and the pressing rods are slidably arranged in the inclined grooves; when the force-accumulating plate slides downward, the force-accumulating plate accumulates force for the lifting plate, in this process, the square pipe does not slide, when the force-accumulating plate completes the fixing of the supporting pipe, the lifting plate is released, the lifting plate moves downward, the push block slides and extrudes the first spring through the cooperation of the pressing rod and the inclined groove, under the action of the reset force of the first spring, the square pipe slightly slides and abuts against the precast beam, the supporting pipe is prevented from shaking when the supporting pipe is fixed, and the phenomenon of concrete leakage during concrete pouring is reduced.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, specifically to a prestressed steel pipe truss composite slab support assembly and construction process. Background Technology

[0002] Against the backdrop of realizing the industrialization of construction, the development of prefabricated buildings is the main direction at present, and the construction quality is of paramount importance. In prefabricated buildings, composite slabs are assembled monolithic floor slabs made by stacking precast slabs and cast-in-place reinforced concrete layers.

[0003] Composite slabs are generally used in conjunction with precast beams. During construction, the composite slabs are placed on the precast beams and then poured to form a complete floor slab structure. When placing the composite slabs, support members are usually set on the precast beams to assist the precast beams in supporting the composite slabs and to prevent grout leakage at the connection between the precast beams and the composite slabs during concrete pouring.

[0004] In existing technology, steel pipes are inserted through pre-drilled holes in precast beams and fixed with clips to allow the square pipes to abut against the sides of the precast beams. This method uses multiple composite slabs for support and sealing. However, during construction, the clamps are tightened manually, causing the square pipes to wobble. This necessitates multiple adjustments when fixing the square pipes. Furthermore, after fixing, it is difficult for the square pipes to achieve a good seal against the sides of the precast beams, which not only reduces installation efficiency but also leads to insufficient sealing performance and grout leakage. Summary of the Invention

[0005] The purpose of this invention is to provide a prestressed steel pipe truss composite slab support assembly and construction process to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A prestressed steel pipe truss composite slab support assembly includes a support pipe on which a square tube is slidably disposed;

[0008] A lifting plate is slidably mounted on the support tube, and multiple pressure rods are fixedly mounted on the lifting plate. Multiple push blocks are mounted on the support tube, and each of the multiple push blocks is provided with an inclined groove. The multiple pressure rods correspond one-to-one with the multiple inclined grooves, and the pressure rods are slidably mounted in the inclined grooves.

[0009] Each of the aforementioned push blocks and square tubes is provided with a first spring, and the two ends of the first spring are fixedly connected to the push block and the square tube respectively;

[0010] It also includes a power storage component, which includes a power storage plate slidably disposed on the support tube. When the power storage plate descends, it stores power for the lifting plate, and releases power for the lifting plate after the support tube is fixed.

[0011] Preferably, a limit rod is fixedly provided on the lifting plate, a sliding seat is slidably provided on the support tube, the sliding seat is provided with a slot and a limit groove, the limit rod is slidably provided in the limit groove, and the limit rod is slidably inserted into the slot.

[0012] Preferably, a straight rod is fixedly installed on the power storage plate, a protrusion is fixedly installed on the straight rod, a blind groove is provided on the sliding seat, the protrusion is slidably installed in the blind groove, and a pressing side and a rising side are provided on the blind groove.

[0013] Preferably, a third spring is provided between the sliding seat and the support tube, and the two ends of the third spring are fixedly connected to the sliding seat and the support tube, respectively.

[0014] Preferably, a plurality of second springs are provided between the lifting plate and the energy storage plate, and the two ends of the second springs are fixedly connected to the lifting plate and the energy storage plate, respectively.

[0015] Preferably, a rotating component is rotatably mounted on the support tube, and a screw is fixedly mounted on the rotating component, the screw being threadedly connected to the energy storage plate.

[0016] Preferably, the support tube is provided with a fixing buckle, the fixing buckle is fixedly provided with a magnet, and the energy storage plate is fixedly provided with a friction plate, which is in frictional contact with the steel tube.

[0017] Preferably, an L-shaped plate is fixedly installed on the square tube, and the two sides of the L-shaped plate abut against the precast beam and the composite slab respectively.

[0018] Preferably, the second spring is a tension spring.

[0019] A construction process for prestressed steel pipe truss composite slabs, comprising the following steps, involves the construction of prestressed steel pipe truss composite slab support components:

[0020] S1: Before hoisting the precast beam, insert steel pipes into the reserved holes of the precast beam;

[0021] S2: Install the support tube so that the L-shaped plate on the square tube is pressed tightly against the side of the precast beam;

[0022] S3: Hoist the precast beams and level them;

[0023] S4: Hoist the composite slab, tie the reinforcing steel bars, and then pour the concrete;

[0024] S5: Disassemble the support pipe after the concrete has hardened.

[0025] In the above technical solution, the prestressed steel pipe truss composite slab support assembly and construction process provided by the present invention have the following beneficial effects:

[0026] 1. When the accumulator plate slides downward, it accumulates force on the lifting plate. During this process, the square tube does not slide. While the accumulator plate completes the fixation of the support tube, it releases the lifting plate, causing it to move downward. Through the cooperation of the pressure rod and the inclined groove, the push block slides and squeezes the first spring. Under the action of the first spring's restoring force, the square tube slides slightly and abuts against the precast beam, preventing the support tube from shaking when it is fixed, which would affect the sealing performance between the square tube and the precast beam and reduce grout leakage during concrete pouring.

[0027] 2. When installing and fixing the support tube, the L-shaped plate can be made to abut against the side of the precast beam without the need for manual adjustment of the swaying support tube. This reduces the difficulty of manual operation and improves installation efficiency. Furthermore, after the support tube is installed, the first spring is still in a compressed state. This ensures that when the precast beam is hoisted, the square tube, under the action of the first spring, keeps the L-shaped plate abutting against the side of the precast beam throughout the hoisting process.

[0028] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0029] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0031] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0032] Figure 2 A front view of the overall structure provided in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the installation structure of the support pipe and precast beam provided in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the bottom structure of the support tube provided in an embodiment of the present invention;

[0035] Figure 5 This is a front sectional view of the support tube provided in an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the internal structure of the support tube provided in an embodiment of the present invention;

[0037] Figure 7 This is a partial structural diagram of the sliding seat, lifting plate, and energy storage plate provided in an embodiment of the present invention;

[0038] Figure 8 This is a side cross-sectional view of the support tube provided in an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Precast beam; 11. Composite slab; 12. Steel pipe; 2. Support pipe; 21. Fixing buckle; 22. Magnet; 3. Square tube; 31. L-shaped plate; 4. Lifting plate; 41. Limiting rod; 42. Pressure rod; 43. First spring; 5. Energy storage plate; 51. Friction plate; 52. Straight rod; 53. Protrusion; 54. Second spring; 6. Sliding seat; 61. Third spring; 62. Slot; 63. Limiting groove; 64. Blind groove; 65. Pressing side; 66. Rising side; 7. Push block; 71. Inclined groove; 8. Rotating component; 81. Screw. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0042] Please refer to 1-8. A prestressed steel pipe truss composite slab support assembly includes a support pipe 2, on which a square tube 3 is slidably mounted; a lifting plate 4 is slidably mounted on the support pipe 2, and multiple pressure rods 42 are fixedly mounted on the lifting plate 4; multiple push blocks 7 are mounted on the support pipe 2, and each push block 7 has an inclined groove 71; the multiple pressure rods 42 correspond one-to-one with the multiple inclined grooves 71, and the pressure rods 42 are slidably mounted within the inclined grooves 71; a first spring 43 is provided between each of the multiple push blocks 7 and the square tube 3, and the two ends of the first spring 43 are fixedly connected to the push blocks 7 and the square tube 3 respectively; it also includes a power storage assembly, which includes a power storage plate 5 slidably mounted on the support pipe 2. When the power storage plate 5 descends, it stores force on the lifting plate 4 and stores force on the support pipe 2. After 2 is fixed, the lifting plate 4 is released. When the energy storage plate 5 moves down, it stores force on the lifting plate 4. After the energy storage plate 5 is completed, the support pipe 2 and the steel pipe 12 can be fixed. At the same time, the lifting plate 4 is released, causing the lifting plate 4 to move down. Through the cooperation of the pressure rod 42 and the inclined groove 71, the push block 7 slides. The first spring 43 pushes the square tube 3 to slide slightly, so that the square tube 3 abuts against the side of the precast beam 1. After the support pipe 2 is installed, the first spring 43 is still in a compressed state. The restoring force of the first spring 43 can always make the square tube 3 abut against the side of the precast beam 1, which improves the sealing performance between the square tube 3 and the side of the precast beam 1 and reduces the occurrence of grout leakage during pouring.

[0043] Specifically, a limiting rod 41 is fixedly installed on the lifting plate 4, and a sliding seat 6 is slidably installed on the support tube 2. The sliding seat 6 is provided with a slot 62 and a limiting groove 63. The limiting rod 41 is slidably installed in the limiting groove 63 and is slidably inserted into the slot 62. Multiple second springs 54 are provided between the lifting plate 4 and the power storage plate 5. The two ends of the second springs 54 are fixedly connected to the lifting plate 4 and the power storage plate 5, respectively. The second springs 54 are tension springs. When the power storage plate 5 moves downward, the limiting rod 41 is located in the limiting groove 63. At this time, the lifting plate 4 is limited. The downward movement of the power storage plate 5 will stretch the second spring 54, thereby completing the power storage of the lifting plate 4. When the power storage plate 5 moves to the lowest position, the limiting rod 41 disengages from the limiting groove 63. At this time, the lifting plate 4 loses its limitation and moves downward under the action of the second spring 54, causing the push block 7 to slide. The square tube 3 abuts against the precast beam 1 and compresses the first spring 43.

[0044] In a further embodiment of the present invention, a straight rod 52 is fixedly mounted on the power storage plate 5, and a protrusion 53 is fixedly mounted on the straight rod 52. A blind groove 64 is provided on the sliding seat 6, and the protrusion 53 is slidably mounted in the blind groove 64. A pressing side 65 and a rising side 66 are provided on the blind groove 64. A third spring 61 is provided between the sliding seat 6 and the support tube 2. The two ends of the third spring 61 are fixedly connected to the sliding seat 6 and the support tube 2, respectively. When the power storage plate 5 moves downward, the protrusion 53 abuts against the pressing side 65 of the blind groove 64, and pushes the sliding seat 6 to slide through the pressing side 65, and squeezes the third spring 61. When the power storage plate 5 moves to the bottom, the sliding seat 6 slides to the position where the slot 62 is aligned with the limiting rod 41, and the limiting rod 41 loses its limiting position. The limiting effect of groove 63 causes the lifting plate 4 to move downward under the action of the second spring 54. Because the limiting rod 41 is inserted into the slot 62, the sliding seat 6 cannot slide. Therefore, when the energy storage plate 5 rises and resets, the protrusion 53 moves upward along the rising side 66 of the blind groove 64. Even if the sliding seat 6 cannot slide, it will not affect the reset of the energy storage plate 5. When the energy storage plate 5 moves upward and resets, it will push the lifting plate 4 to reset through the second spring 54. After the lifting plate 4 is reset, the limiting rod 41 disengages from the slot 62. At this time, under the action of the third spring 61, the sliding seat 6 slides and resets. After the sliding seat 6 slides and resets, the limiting rod 41 is located in the limiting groove 63, and the protrusion 53 also returns to the initial position in the blind groove 64 for the next installation and use.

[0045] Furthermore, a rotating component 8 is rotatably mounted on the support pipe 2, and a screw 81 is fixedly mounted on the rotating component 8. The screw 81 is threadedly connected to the energy storage plate 5. A fixing buckle 21 is provided on the support pipe 2, and a magnet 22 is fixedly mounted on the fixing buckle 21. A friction plate 51 is fixedly mounted on the energy storage plate 5, and the friction plate 51 is in frictional contact with the steel pipe 12. When the rotating component 8 rotates, it drives the screw 81 to rotate, causing the energy storage plate 5 to move downward. When the energy storage plate 5 moves to the bottom, the friction plate 51 abuts against the steel pipe 12, thus fixing the support pipe 2. The pre-drilled hole on the fixing buckle 21 is U-shaped, and the steel pipe 12 passes through the fixing buckle 21. When the support tube 2 is in the reserved hole, it can move up and down relative to the steel tube 12. When it is fixed, the magnet 22 attracts the steel tube 12, and the energy storage plate 5 moves down. After the friction plate 51 abuts against the steel tube 12, the support tube 2 is fixed and will not move. When the support tube 2 is disassembled, the friction plate 51 is separated from the steel tube 12. Then the support tube 2 is pulled down, and the magnet 22 is separated from the steel tube 12. At this time, both the support tube 2 and the square tube 3 are separated from the composite plate 11. This avoids friction and squeezing between the steel tube 12 and the composite plate 11 when the support tube 2 is slid off, making it difficult to slide and causing the support tube 2 to be difficult to disassemble or even impossible to disassemble.

[0046] Furthermore, an L-shaped plate 31 is fixedly installed on the square tube 3. The two sides of the L-shaped plate 31 abut against the precast beam 1 and the composite slab 11, respectively. The L-shaped plate 31 is made of plywood, which has advantages such as bending and compressive strength and good sealing performance. It can further improve the sealing performance between the square tube 3 and the precast beam 1. It should be noted that in this invention, the square tube 3 and the L-shaped plate 31 are integrated, that is, the square tube 3 abuts against the precast beam 1 or the L-shaped plate 31 abuts against the precast beam 1, which is not controversial.

[0047] A construction process for prestressed steel pipe truss composite slabs, comprising the following steps, involves the construction of a prestressed steel pipe truss composite slab support assembly as described above:

[0048] S1: Before hoisting the precast beam 1, insert the steel pipe 12 into the reserved hole of the precast beam 1;

[0049] S2: Install the support tube 2 so that the L-shaped plate 31 on the square tube 3 abuts against the side of the precast beam 1;

[0050] S3: Hoist precast beam 1 and level it;

[0051] S4: Hoist the composite slab 11, tie the reinforcing bars, and then pour concrete;

[0052] S5: After the concrete has hardened, disassemble support pipe 2.

[0053] During installation, the steel pipe 12 is inserted into the pre-drilled hole of the precast beam 1. The steel pipe 12 passes through the hole in the fixing buckle 21, allowing the L-shaped plate 31 on the square tube 3 to contact the side of the precast beam 1. Then, the rotating component 8 is rotated, and the screw 81 rotates, causing the energy storage plate 5 to slide downwards. At this time, the limiting rod 41 on the lifting plate 4 is located within the limiting groove 63. Therefore, when the energy storage plate 5 slides downwards, it will stretch the second spring 54, preventing the lifting plate 4 from moving downwards. As the energy storage plate 5 gradually moves downwards, the protrusion 53 on the straight rod 52 interacts with the blind groove 6. When the pressing side 65 of 4 abuts, it pushes the sliding seat 6 to slide and compresses the third spring 61 until the energy storage plate 5 descends to the point where the friction plate 51 abuts against the steel pipe 12. At this time, the sliding seat 6 slides to the position of the slot 62 and the limiting rod 41. At this time, under the reset action of the second spring 54, the lifting plate 4 moves down and drives the pressure rod 42 to move down. When the pressure rod 42 moves down, it cooperates with the inclined groove 71 on the push block 7, causing the push block 7 to slide and squeeze the first spring 43. In this way, the first spring 43 will slightly push the square tube 3 and the L-shaped plate. Sliding mechanism 31 allows the L-shaped plate 31 to abut against the side of the precast beam 1, while the first spring 43 remains compressed, ensuring that the square tube 3 and the L-shaped plate 31 are always subjected to the restoring force of the first spring 43, thus abutting against the side of the precast beam 1 and improving the sealing effect between the L-shaped plate 31 and the precast beam 1. Subsequently, the precast beam 1 and the composite slab 11 can be hoisted and poured to complete the construction. When disassembling the support pipe 2, the rotating part 8 is rotated in the opposite direction to reset the lifting plate 4 and the energy storage plate 5. It should be noted that when the energy storage plate 5... During the reset, since the limiting rod 41 is not disengaged from the slot 62, the sliding seat 6 cannot slide. The protrusion 53 on the straight rod 52 moves upward along the rising side 66 of the blind groove 64, which will not affect the reset of the power storage plate 5. After the lifting plate 4 is reset, the limiting rod 41 disengages from the slot 62. Under the action of the third spring 61, the sliding seat 6 is pushed to slide and reset. Then, the support tube 2 is pulled down, so that the magnet 22 on the fixing buckle 21 is disengaged from the steel pipe 12, and the L-shaped plate 31 is disengaged from the overlapping plate 11. The support tube 2 can then be removed to complete the disassembly.

[0054] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A prestressed steel pipe truss composite slab support assembly, comprising a support pipe (2), characterized in that, A square tube (3) is slidably disposed on the support tube (2); A lifting plate (4) is slidably arranged on the support tube (2), and multiple pressure rods (42) are fixedly arranged on the lifting plate (4). Multiple push blocks (7) are arranged on the support tube (2), and each of the multiple push blocks (7) is provided with a slanted groove (71). The multiple pressure rods (42) correspond one-to-one with the multiple slanted grooves (71), and the pressure rods (42) are slidably arranged in the slanted grooves (71). A first spring (43) is provided between each of the push blocks (7) and the square tube (3), and the two ends of the first spring (43) are fixedly connected to the push block (7) and the square tube (3) respectively; It also includes a power storage component, which includes a power storage plate (5) slidably disposed on the support tube (2). When the power storage plate (5) descends, it stores power in the lifting plate (4), and releases power in the lifting plate (4) after the support tube (2) is fixed. A limiting rod (41) is fixedly installed on the lifting plate (4), and a sliding seat (6) is slidably installed on the support tube (2). A slot (62) and a limiting groove (63) are provided on the sliding seat (6). The limiting rod (41) is slidably installed in the limiting groove (63), and the limiting rod (41) and the slot (62) are slidably inserted into each other. A straight rod (52) is fixedly installed on the power storage plate (5), a protrusion (53) is fixedly installed on the straight rod (52), a blind groove (64) is provided on the sliding seat (6), the protrusion (53) is slidably installed in the blind groove (64), and a pressing side (65) and a rising side (66) are provided on the blind groove (64). A third spring (61) is provided between the sliding seat (6) and the support tube (2), and the two ends of the third spring (61) are fixedly connected to the sliding seat (6) and the support tube (2) respectively. Multiple second springs (54) are provided between the lifting plate (4) and the power storage plate (5), and the two ends of the second springs (54) are fixedly connected to the lifting plate (4) and the power storage plate (5) respectively.

2. The prestressed steel pipe truss composite slab support assembly according to claim 1, characterized in that, A rotating component (8) is rotatably mounted on the support tube (2), and a screw (81) is fixedly mounted on the rotating component (8). The screw (81) is threadedly connected to the power storage plate (5).

3. The prestressed steel pipe truss composite slab support assembly according to claim 1, characterized in that, A fixing buckle (21) is provided on the support tube (2), a magnet (22) is fixedly provided on the fixing buckle (21), and a friction plate (51) is fixedly provided on the energy storage plate (5). The friction plate (51) is in frictional contact with the steel pipe (12).

4. The prestressed steel pipe truss composite slab support assembly according to claim 1, characterized in that, An L-shaped plate (31) is fixedly installed on the square tube (3), and the two sides of the L-shaped plate (31) abut against the precast beam (1) and the composite plate (11) respectively.

5. The prestressed steel pipe truss composite slab support assembly according to claim 1, characterized in that, The second spring (54) is a tension spring.

6. A construction process for prestressed steel pipe truss composite slabs, comprising construction using the prestressed steel pipe truss composite slab support assembly as described in any one of claims 1-5, characterized in that, The construction process of prestressed steel pipe truss composite slabs includes the following steps: S1: Before hoisting the precast beam (1), insert steel pipe (12) into the reserved hole of the precast beam (1); S2: Install the support tube (2) so that the L-shaped plate (31) on the square tube (3) abuts against the side of the precast beam (1); S3: Hoist the precast beam (1) and level it; S4: Hoist the composite slab (11), tie the reinforcing bars, and then pour concrete; S5: After the concrete has solidified, the support pipe (2) is disassembled.

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