Steel pipe truss prestressed composite slab sectionalized support device

Abstract

The present application relates to the technical fields of building engineering, and discloses a steel pipe truss prestressed composite slab sectional support device, which comprises a plurality of vertical rods, and steel pipes are arranged between the vertical rods, the steel pipes and the vertical rods are connected through disc buckles, adjustable supports are further installed at the end of the vertical rods, I-shaped steels and wood blocks placed on the I-shaped steels are installed on the adjustable supports, and diagonal rods are further arranged between the vertical rods, and support parts are further arranged on the steel pipes close to the end of the vertical rods, the steel pipe truss prestressed composite slab sectional support device, by adopting the sectional support design, the number of vertical rods in the support system is effectively reduced, so that the construction space is significantly expanded, by optimizing the structural design of the diagonal rods and the support parts, the stability and the bending resistance of the whole support system are enhanced, even in the case of reducing the number of vertical rods, the construction load can be effectively dispersed and transmitted, and the safety of the structure of the composite slab in the concrete pouring process is ensured.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a segmented support device for prestressed composite steel pipe trusses. Background Technology

[0002] As a key component in prefabricated buildings, steel pipe truss prestressed composite slabs have been widely used in high-rise buildings, large-span industrial plants, and large public buildings due to their advantages such as light weight, large span, strong load-bearing capacity, and high construction efficiency. During construction, the support system is the core guarantee for ensuring the installation accuracy of the composite slab, the quality of concrete pouring, and construction safety. Currently, the industry generally adopts a support system based on disc-lock scaffolding. This system forms a spatial grid structure to resist construction loads through the combination of standardized uprights, horizontal bars, ground braces, and scissor braces. This traditional support system can provide high overall stability and load-bearing capacity through dense upright distribution, multiple scissor bracing reinforcements, and rigid node connections, effectively ensuring the structural safety of the composite slab during concrete pouring under conventional construction conditions.

[0003] As construction becomes more efficient, lightweight, and cost-effective, traditional support systems are gradually revealing significant limitations. The main problem lies in the excessive number of uprights: to ensure support strength, existing solutions require densely packed uprights, resulting in a large occupation of construction space. This not only restricts workers' activities under the composite slab (such as rebar tying and pipeline laying), but also increases the difficulty of material transportation and stacking, reducing construction efficiency. To address this, we propose a segmented support device for prestressed composite slabs using steel pipe trusses. Summary of the Invention

[0004] The purpose of this invention is to provide a segmented support device for prestressed composite slabs of steel pipe trusses to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a segmented support device for a prestressed composite slab of steel pipe truss, comprising multiple uprights, steel pipes arranged between the uprights, the steel pipes and the uprights being connected by disc fasteners, adjustable supports installed at the ends of the uprights, I-beams and wooden blocks placed on the I-beams being installed on the adjustable supports, diagonal tie rods for strengthening the support force are also arranged between the uprights, and a support part is also provided on the steel pipe near the end of the upright, the support part being used to provide support force to the I-beams or wooden blocks located between the uprights.

[0006] Preferably, the diagonal brace is located between two adjacent uprights. The diagonal brace includes a first support frame connected to a steel pipe near the bottom of the upright, and a second support frame connected to a steel pipe near the top of the upright. The first support frame and the second support frame are connected by a U-shaped steel buckle.

[0007] Preferably, a rubber pad is placed between the first support rod and the second support rod, and threaded grooves are provided at the ends of both the first support rod and the second support rod. A threaded sleeve that mates with the threaded grooves is provided between the first support rod and the second support rod.

[0008] Preferably, a connecting buckle is fixedly installed on the support rod frame, and a steel buckle is installed on the upright. A steel sleeve is rotatably connected to the steel buckle, and a steel shaft is slidably connected to the inner wall of the steel sleeve. The end of the steel shaft is rotatably connected to the connecting buckle.

[0009] Preferably, the steel shaft is provided with a threaded groove, and a connecting sleeve that mates with the threaded groove on the steel sleeve is installed on the steel sleeve. A spring part is also installed inside the steel sleeve, and one end of the steel shaft contacts the spring part.

[0010] Preferably, the support includes a steel base connected to a wooden block or an I-beam, and a fixing sleeve is symmetrically installed on a steel pipe near the top of the upright. A support sleeve is rotatably connected to the fixing sleeve. A support shaft is provided inside the support sleeve. The support shaft is rotatably connected to the steel base. The support shaft is provided with a threaded groove. A locking sleeve corresponding to the threaded groove on the support shaft is installed on the support sleeve.

[0011] Preferably, a square slider is slidably connected to the inner wall of the support sleeve, and a compression spring is connected between the square slider and the inner wall of the support sleeve. A snap-fit ​​block is symmetrically installed on the square slider and slidably connected to it. An insertion groove is opened at the end of the support shaft. When the end of the support shaft contacts the square slider, the snap-fit ​​block is located inside the insertion groove.

[0012] Preferably, a spring mechanism connects the snap-fit ​​blocks, and the support sleeve is provided with a snap-fit ​​groove, which is located on the movement trajectory of the snap-fit ​​blocks.

[0013] Preferably, the support shaft and the support sleeve are symmetrically connected by a first bolt, and the square slider and the support sleeve are connected by a second bolt, with the end of the first bolt in close contact with the snap-fit ​​block.

[0014] Preferably, the supporting load of the second bolt is greater than that of the first bolt.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention effectively reduces the number of uprights in the support system by adopting a segmented support design, thereby significantly expanding the construction space. By optimizing the design of the diagonal tie rods and support structure, the overall stability and bending resistance of the support system are enhanced. Even with a reduced number of uprights, the construction load can be effectively distributed and transferred, ensuring the structural safety of the composite slab during concrete pouring and providing a strong guarantee for high-quality building construction.

[0016] This invention effectively solves the problem of bending of unsupported areas of wooden blocks and I-beams during concrete pouring by setting a support part on the steel pipe near the end of the upright, including components such as a steel base, a fixing sleeve, a support sleeve, a support shaft, and a square slider. This improves the rigidity and stability of the overall support system. At the same time, the cooperation of the spring mechanism and the snap-fit ​​groove ensures the durability, effectiveness, and ease of maintenance of the support part in complex construction environments, reducing construction costs and time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure in which wooden blocks support the composite board in this invention; Figure 3 This is a schematic diagram of the segmented support structure of the upright pole in this invention; Figure 4 This is a schematic diagram of the diagonal tie rod in this invention; Figure 5 This is a schematic diagram showing the partial structural separation of the tie rod in this invention; Figure 6 This is a schematic diagram of the structure of the support sleeve, support shaft, and steel base in this invention; Figure 7 This is a schematic diagram of the support portion in this invention; Figure 8 This is a schematic diagram of the supporting shaft and square slider in this invention; Figure 9 This is a schematic diagram of the structure of the first bolt and the snap-fit ​​block in this invention; Figure 10 This is a schematic diagram of the structure of the first bolt and the snap-fit ​​block after the present invention has broken.

[0018] In the diagram: 1. Upright pole; 2. Steel pipe; 3. Disc fastener; 4. Adjustable support; 5. I-beam; 6. Wooden block; 7. Diagonal tie rod; 71. Support rod frame one; 72. Support rod frame two; 73. U-shaped steel buckle; 74. Rubber pad; 75. Threaded sleeve; 76. Connecting buckle; 77. Steel buckle; 78. Steel sleeve; 79. Steel shaft; 70. Connecting sleeve; 701. Spring part; 8. Support part; 81. Steel base; 82. Fixed sleeve; 83. Support sleeve; 831. Snap-fit ​​groove; 84. Support shaft; 841. Insertion groove; 85. Locking sleeve; 86. Square slider; 87. Compression spring; 88. Snap-fit ​​block; 89. Spring mechanism; 80. First bolt; 801. Second bolt; 9. Composite plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-10 This invention provides a technical solution: a segmented support device for prestressed composite steel pipe trusses. This invention addresses the technical problems in the background art by making corresponding improvements. Through segmented support, each support unit possesses complete load-bearing, early warning, and failure isolation capabilities, allowing for rapid replacement in case of damage, thus achieving the purpose of segmented load-bearing. Combined with attached... Figure 1-3 As shown, the system includes multiple uprights 1 connected to the ground. A steel pipe 2 is installed between adjacent uprights 1, with at least two steel pipes 2. The steel pipes 2 are connected to the uprights 1 via a disc fastener 3. An adjustable support 4 is installed at the end of each upright 1. An I-beam 5 and a wooden block 6 are installed on the adjustable support 4. During installation, the composite slab 9 is placed on the wooden block 6 using a crane (existing technology, not shown in the figure). In the prior art, a dense arrangement of uprights 1 is required, resulting in significant occupation of construction space. This invention uses a segmented support method by reducing the number of uprights 1. In existing solutions, the spacing between uprights 1 is ≤1.2m, while in this invention, the spacing between uprights 1 is 2.4m-2.8m. To avoid problems with support strength due to the reduced number of uprights 1, this invention incorporates the following design: diagonal bracing 7 is also installed between uprights 1 to strengthen the support force. Combined with appendix Figure 3 -Appendix Figure 5As shown, as a further limitation of the present invention: the diagonal brace 7 is located between two adjacent uprights 1. The diagonal brace 7 includes a first support frame 71 connected to a steel pipe 2 near the bottom of the upright 1, and a second support frame 72 connected to a steel pipe 2 near the top of the upright 1. The first support frame 71 and the second support frame 72 are connected by a U-shaped steel buckle 73. The U-shaped steel buckle 73 fixes the first support frame 71 and the second support frame 72. A rubber pad 74 is also placed between the first support frame 71 and the second support frame 72. The ends of the first support frame 71 and the second support frame 72 are provided with threaded grooves, and a threaded sleeve 75 that mates with the threaded grooves is provided between the first support frame 71 and the second support frame 72. During installation, support rod frame 1 71 and support rod frame 2 72 are fixed to the corresponding steel pipe 2, ensuring that their axial positions are the same. Then, a rubber pad 74 is placed between support rod frame 1 71 and support rod frame 2 72. The rubber pad 74 between support rod frame 1 71 and support rod frame 2 72 can absorb possible vibrations and impacts (such as mechanical vibrations, personnel movement, etc.) during construction, reducing the impact on the structure. Then, the ends of support rod frame 1 71 and support rod frame 2 72 are fixed with threaded sleeves 75, and U-shaped steel buckles 73 are inserted to reinforce the support rod frame 1 71 and support rod frame 2 72. The U-shaped steel buckles 73 and the threaded sleeves 75 are fixed with bolts.

[0021] Furthermore, during the specific construction process, the diagonal brace 7 distributes the pressure borne by the top steel pipe 2 to the upright 1 and the remaining steel pipes 2. While reducing the number of components such as upright 1 and steel pipe 2, it can effectively support the construction of the composite slab 9. Due to the reduction in the number of upright 1, the length of the diagonal brace 7 increases. Support rod frame one 71 and support rod frame two 72 are prone to bending under long-term use. The threaded sleeve 75 and U-shaped steel buckle 73 can effectively increase the bending resistance of the diagonal brace 7, and the length of support rod frame one 71 is greater than the length of support rod frame two 72. Combined with appendix Figure 3 and attached Figure 4 As shown, in order to effectively support the support rod frame 71, the present invention has a connecting buckle 76 fixedly installed on the support rod frame 71, and a steel buckle 77 installed on the upright 1. A steel sleeve 78 is installed on the steel buckle 77 and rotatably connected thereto. A steel shaft 79 is installed inside the steel sleeve 78 and slidably connected to the inner wall. The end of the steel shaft 79 is rotatably connected to the connecting buckle 76. A threaded groove is provided on the steel shaft 79. A connecting sleeve 70 that mates with the threaded groove on the steel shaft 79 is installed on the steel sleeve 78. A spring part 701 is also installed inside the steel sleeve 78, and one end of the steel shaft 79 is in contact with the spring part 701. During the specific construction process, the position of the support rod frame 71 on the connecting buckle 76 is adjusted according to the length of the support rod frame 71. It should be noted that the connecting buckle 76 and the support rod frame 71 are fixed with bolts. During the construction process, the position is adjusted first, and then fixed with bolts after the position is determined. Correspondingly, in order to ensure that the support angle is within a suitable range, the position of the steel buckle 77 on the upright 1 can be adjusted. After the position is determined, a steel sleeve 78 is installed on the steel buckle 77, and a steel shaft 79 is inserted into the steel sleeve 78. When the steel shaft 79 is inside the steel sleeve 78, it compresses the spring part 701 until the end of the steel shaft 79 is in a position that can connect with the connecting buckle 76. Under the action of the steel sleeve 78 and the steel shaft 79, the support rod frame 71 is supported to improve the support strength of the diagonal tie rod 7, so as to ensure the stability of the composite plate 9 during construction while reducing the number of components such as the upright 1, steel pipe 2, and disc fastener 3.

[0022] When the number of supporting components such as uprights 1 and steel pipes 2 decreases, the number of unsupported areas of I-beams 5 and wooden blocks 6 increases. This makes it easier for unsupported areas of wooden blocks 6 and I-beams 5 to bend during subsequent concrete pouring. Therefore, this invention also provides a support part 8 on the steel pipe 2 near the end of the upright 1. The support part 8 provides supporting force to the I-beams 5 or wooden blocks 6 located between the uprights 1. Figure 2 Appendix Figure 3 and attached Figure 6 As shown, the support part 8 includes a steel base 81 connected to the wooden block 6 or the I-beam 5. A fixing sleeve 82 is symmetrically installed on the steel pipe 2 near the top of the upright 1. A support sleeve 83 is rotatably connected to the fixing sleeve 82. A support shaft 84 is provided inside the support sleeve 83. Lifting lugs (not shown in the figure) are symmetrically installed at the bottom of the steel base 81. The support shaft 84 is rotatably connected to the lifting lugs at the bottom of the steel base 81. A threaded groove is provided on the support shaft 84. A locking sleeve 85 corresponding to the threaded groove on the support sleeve 83 is installed on the support sleeve 83. The locking sleeve 85 reinforces the connection between the support shaft 84 and the support sleeve 83. Figure 7 and attached Figure 8As shown, a square slider 86 is installed inside the support sleeve 83 and slidably connected to its inner wall. A compression spring 87 connects the square slider 86 and the inner wall of the support sleeve 83. A snap-fit ​​block 88 is symmetrically installed on the square slider 86 and slidably connected to it. It should be noted that the ends of the snap-fit ​​blocks 88 are coated with paint. An insertion groove 841 is provided at the end of the support shaft 84. When the end of the support shaft 84 contacts the square slider 86, the snap-fit ​​block 88 is located inside the insertion groove 841. A spring mechanism 89 connects the snap-fit ​​blocks 88. The support sleeve 83 is provided with a snap-fit ​​groove 831, which is located on the movement trajectory of the snap-fit ​​block 88. A first bolt 80 is symmetrically connected between the support shaft 84 and the support sleeve 83. The square slider 86 is connected to the support sleeve 83 by a second bolt 801. The end of the first bolt 80 is in close contact with the snap-fit ​​block 88, and the supporting load of the second bolt 801 is much greater than the supporting load of the first bolt 80.

[0023] During the specific construction process, in order to support the unsupported areas of the wooden blocks 6 and the I-beams 5, a fixing sleeve 82 is installed on the steel pipe 2 near the top of the upright 1, followed by a support sleeve 83. The angle of the support sleeve 83 is adjusted according to the support position. After adjustment, the support shaft 84 is inserted. During the insertion of the support shaft 84, the position of the end of the support shaft 84 and the bottom lug of the steel base 81 is observed. When the end of the support shaft 84 contacts the bottom lug of the steel base 81, the two are connected. When the end of the support shaft 84 is inside the support sleeve 83, the end of the support shaft 84 acts on the square slider 86, and the locking block 88 on the square slider 86 enters into the insertion groove 841, thus supporting the... The shaft 84 continues to apply force to the square slider 86, which compresses the compression spring 87 until the locking block 88 on the square slider 86 moves to the locking groove 831. It should be noted that initially, the locking block 88 on the square slider 86 is located above the locking groove 831. Before the locking block 88 moves to the locking groove 831, the spring mechanism 89 between the locking blocks 88 is compressed. When it moves to the locking groove 831, the compressed spring mechanism 89 causes the locking block 88 to enter the locking groove 831. When the locking block 88 on the square slider 86 moves to the locking groove 831, it first passes through the... Two bolts 801 fix the square slider 86 to the support sleeve 83, then press and engage the snap-fit ​​block 88 located in the snap-fit ​​groove 831, adjusting the position of the snap-fit ​​block 88 within the insertion groove 841. Then, the first bolt 80 is installed, fixing the support shaft 84 and the support sleeve 83. The end of the first bolt 80 is in close contact with the snap-fit ​​block 88, preventing it from moving. At this point, the snap-fit ​​block 88 is in a compressed state. Because the support load of the first bolt 80 is less than that of the second bolt 801, if excessive load occurs during long-term construction, the first bolt 80 will break first. After breaking, the first bolt 80 will not be in close contact with the snap-fit ​​block 88. Under the action of the spring mechanism 89 in a compressed state, the snap-fit ​​block 88 enters into the snap-fit ​​groove 831. At the same time, since the end of the snap-fit ​​block 88 is coated with paint, when the snap-fit ​​block 88 enters into the snap-fit ​​groove 831, the end of the snap-fit ​​block 88 is located outside the support sleeve 83, which makes it easy for construction personnel to observe. The snap-fit ​​block 88 entering the snap-fit ​​groove 831, together with the second bolt 801, provides support for the installation, pouring and other processes of the composite plate 9. After the construction is completed, the uprights 1 and other components are dismantled in stages. Alternatively, some uprights 1 can be replaced during the construction process. Through the structural design of the present invention, the number of supporting components is effectively reduced, and excellent support effect is ensured during the construction process.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A segmented support device for prestressed composite slabs of steel pipe trusses, characterized in that, It includes multiple uprights (1), with steel pipes (2) installed between the uprights (1). The steel pipes (2) are connected to the uprights (1) by disc fasteners (3). An adjustable support (4) is installed at the end of the upright (1). An I-beam (5) and a wooden block (6) are installed on the adjustable support (4). An inclined tie rod (7) for strengthening the support force is also installed between the uprights (1). A support part (8) is also installed on the steel pipe (2) near the end of the upright (1). The support part (8) is used to provide support force for the I-beam (5) or the wooden block (6) located between the uprights (1).

2. The segmented support device for prestressed composite slabs of steel pipe trusses according to claim 1, characterized in that: The diagonal brace (7) is located between two adjacent uprights (1). The diagonal brace (7) includes a support frame one (71) connected to a steel pipe (2) near the bottom of the upright (1) and a support frame two (72) connected to a steel pipe (2) near the top of the upright (1). The support frame one (71) and the support frame two (72) are connected by a U-shaped steel buckle (73).

3. The segmented support device for prestressed composite slabs of steel pipe trusses according to claim 2, characterized in that: A rubber pad (74) is placed between support rod frame one (71) and support rod frame two (72). The ends of support rod frame one (71) and support rod frame two (72) are provided with threaded grooves, and a threaded sleeve (75) that mates with the threaded grooves is provided between support rod frame one (71) and support rod frame two (72).

4. The segmented support device for prestressed composite slabs of steel pipe trusses according to claim 2, characterized in that: A connecting buckle (76) is fixedly installed on the support rod frame (71), and a steel buckle (77) is installed on the upright (1). A steel sleeve (78) is rotatably connected to the steel buckle (77), and a steel shaft (79) is slidably connected to the inner wall of the steel sleeve (78). The end of the steel shaft (79) is rotatably connected to the connecting buckle (76).

5. A segmented support device for prestressed composite slabs of steel pipe trusses according to claim 4, characterized in that: A threaded groove is provided on the steel shaft (79), and a connecting sleeve (70) that mates with the threaded groove on the steel shaft (79) is installed on the steel sleeve (78). A spring part (701) is also installed inside the steel sleeve (78), and one end of the steel shaft (79) contacts the spring part (701).

6. The segmented support device for prestressed composite slabs of steel pipe trusses according to claim 1, characterized in that: The support part (8) includes a steel base (81) connected to a wooden block (6) or an I-beam (5). A fixed sleeve (82) is also symmetrically installed on the steel pipe (2) near the top of the upright (1). A support sleeve (83) is rotatably connected to the fixed sleeve (82). A support shaft (84) is provided inside the support sleeve (83). The support shaft (84) is rotatably connected to the steel base (81). A threaded groove is provided on the support shaft (84). A locking sleeve (85) corresponding to the threaded groove on the support shaft (84) is installed on the support sleeve (83).

7. A segmented support device for prestressed composite slabs of steel pipe trusses according to claim 6, characterized in that: A square slider (86) is slidably connected to the inner wall of the support sleeve (83). A compression spring (87) is connected between the square slider (86) and the inner wall of the support sleeve (83). A snap-fit ​​block (88) is symmetrically installed on the square slider (86) and slidably connected to it. An insertion groove (841) is opened at the end of the support shaft (84). When the end of the support shaft (84) contacts the square slider (86), the snap-fit ​​block (88) is located inside the insertion groove (841).

8. A segmented support device for prestressed composite slabs of steel pipe trusses according to claim 7, characterized in that: A spring mechanism (89) is connected between the snap-fit ​​blocks (88), and a snap-fit ​​groove (831) is provided on the support sleeve (83). The snap-fit ​​groove (831) is located on the movement trajectory of the snap-fit ​​blocks (88).

9. A segmented support device for prestressed composite slabs of steel pipe trusses according to claim 8, characterized in that: The support shaft (84) and the support sleeve (83) are symmetrically connected by a first bolt (80), and the square slider (86) and the support sleeve (83) are connected by a second bolt (801). The end of the first bolt (80) is in close contact with the snap-fit ​​block (88).

10. A segmented support device for prestressed composite slabs of steel pipe trusses according to claim 9, characterized in that: The supporting load of the second bolt (801) is greater than that of the first bolt (80).

Images