A temporary reinforcement device for top plate based on prestress

Abstract

The utility model discloses a temporary reinforcement device for a top plate based on prestressed stress, comprising a steel frame, a steel strand and an anchoring pad, the steel strands are evenly arranged at the bottom end of the steel frame, both ends of the anchoring pad are fixedly connected with a positioning plate, a plurality of limiting cylinders are fixedly connected inside the positioning plate, an anchor is installed inside each limiting cylinder, the anchor is used to cooperate with the steel strands to transmit the prestressed stress, the anchor comprises an assembly cylinder, a supporting arc plate, an extension frame and a positioning arc plate, the assembly cylinder is installed inside the limiting cylinder, the bottom of one end of the assembly cylinder is fixedly connected with the supporting arc plate, both sides of one end of the assembly cylinder are fixedly connected with the extension frames, a positioning arc plate is rotatably connected between the two extension frames, and a displacement plate is slidably connected to the middle of the positioning arc plate, the utility model relates to the technical field of construction engineering; the steel strands and steel frames used in the utility model make the overall weight lighter, the application cost lower, and the utility model can be reused, which greatly reduces the material and rental costs.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a temporary top plate reinforcement device based on prestress. Background Art

[0002] With the accelerated development of the housing construction field, the site of the housing construction project is small, and there is no temporary land available around it for use as material yards and processing plants. The basement roof is usually used as a temporary site. However, as an important structural component, the basement roof often cracks due to the construction load. Therefore, the roof needs to be reinforced to meet the bearing capacity requirements. Traditional temporary reinforcement methods for the roof, such as steel pipe support or by increasing structural reinforcement and increasing cross-sectional dimensions, can improve the bearing capacity of the roof, but there are problems such as low construction efficiency, high cost, and low space utilization.

[0003] To this end, the utility model provides a temporary top plate reinforcement device based on prestress to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a temporary top plate reinforcement device based on prestressing force, which solves the above-mentioned problems.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a temporary reinforcement device for a top plate based on prestress, comprising a steel frame, steel strands and anchoring pads, the steel strands are evenly arranged at the bottom end of the steel frame, both ends of the anchoring pads are fixedly connected with positioning plates, a plurality of limiting cylinders are fixedly connected inside the positioning plates, each of the limiting cylinders is equipped with an anchor, and the anchor is used to cooperate with the steel strands to transfer prestress.

[0006] Preferably, the anchoring member includes an assembly tube, a supporting arc plate, an extension frame and a positioning arc plate, the assembly tube is assembled inside the limiting tube, the bottom of one end of the assembly tube is fixedly connected to the supporting arc plate, both sides of one end of the assembly tube are fixedly connected to the extension frames, a positioning arc plate is rotatably connected between the two extension frames, a displacement plate is slidably connected to the middle of the positioning arc plate, one end of the displacement plate located outside the positioning arc plate is fixedly connected to a limiting clamp, and one end of the displacement plate located inside the positioning arc plate is fixedly connected to a stabilizing arc plate.

[0007] Preferably, the steel frame is welded by H-shaped steel.

[0008] Preferably, both sides of one side of the limiting cylinder are fixedly connected with limiting blocks, an anti-slip slope is provided inside the limiting block, and both sides of the middle part of the assembly cylinder are fixedly connected with stabilization blocks, and an end of the stabilization block away from the assembly cylinder is provided with an inclined surface adapted to the anti-slip slope.

[0009] Preferably, the top ends of both sides of the positioning arc plate are fixedly connected with extension ears, the end of the extension frame away from the assembly tube is fixedly connected with a carrying rod, and the positioning arc plate is connected to the outside of the carrying rod through the extension ears.

[0010] Preferably, a positioning clamp is fixedly connected to the middle portion of the supporting arc plate, and the positioning clamp and the limiting clamp are connected by bolts.

[0011] Preferably, a receiving groove is opened on the inner side of the positioning arc plate, and the stabilizing arc plate is located inside the receiving groove.

[0012] Preferably, a plurality of stabilizing columns are fixedly connected to the inner side of the stabilizing arc plate, and each of the stabilizing columns is inclined in a direction away from the assembly tube.

[0013] Beneficial Effects

[0014] The utility model provides a temporary top plate reinforcement device based on prestress. Compared with the prior art, it has the following beneficial effects:

[0015] Compared with traditional steel pipe supports, this prestressed top slab temporary reinforcement device uses steel strands and steel frames, making the overall weight lighter, the application cost lower, and reusable, greatly reducing material and rental costs.

[0016] The temporary top plate reinforcement device based on prestress can be quickly installed and disassembled through overall structural coordination, thereby significantly improving construction efficiency and shortening the project period.

[0017] The temporary top slab reinforcement device based on prestress occupies a small space, does not affect the normal use of the basement and the progress of construction work, and improves space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the connection between the steel strand and the anchor piece of the utility model;

[0020] Figure 3 It is a schematic diagram of the anchoring member of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the positioning arc plate of the utility model.

[0022] In the figure, 1 is a steel frame; 2 is a steel strand; 3 is an anchoring pad; 4 is a positioning plate; 5 is a limiting cylinder; 6 is an anchor; 7 is an assembly cylinder; 8 is a limiting block; 9 is a stabilizing block; 10 is a supporting arc plate; 11 is an extension frame; 12 is a positioning arc plate; 13 is a displacement plate; 14 is a limiting clamp; 15 is a stabilizing arc plate; 16 is a stabilizing column; 17 is a frame column; and 18 is a top plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] See also Figure 1-4 A temporary reinforcement device for a roof based on prestressing, comprising a steel frame 1, steel strands 2 and anchoring pads 3, wherein the steel strands 2 are evenly arranged at the bottom of the steel frame 1, and both ends of the anchoring pads 3 are fixedly connected with positioning plates 4, and a plurality of limiting cylinders 5 are fixedly connected inside the positioning plates 4, and an anchor 6 is installed inside each limiting cylinder 5, and the anchor 6 is used to cooperate with the steel strands 2 to transfer the prestressing force;

[0026] It can be understood that the steel frame 1 is first designed according to the specific size and shape of the basement roof 18 and installed at a suitable position above the roof 18 to ensure the reinforcement effect and construction safety;

[0027] Steel strands 2 are evenly arranged under the steel frame 1, and a predetermined prestress is applied to the steel strands 2 by a special tensioning device to enhance the bearing capacity of the top plate 18;

[0028] The anchor pad 3 is fixed at the node position of the frame column 17, and the prestress is transferred from the steel strand 2 to the node of the frame column 17 and the node of the top plate 18 through the anchor pad 3 to ensure the stability and reliability of the reinforcement effect;

[0029] Preferably, the steel frame 1 is welded by H-shaped steel, and the material properties of the H-shaped steel are utilized to effectively support the top plate 18, thereby preventing the top plate 18 from bearing the construction load and causing cracks;

[0030] In detail, the specifications of the steel frame 1 are 150*150*7*10;

[0031] Furthermore, the top and bottom ends of the positioning plate 4 are provided with avoidance holes, and expansion bolts are subsequently passed through the avoidance holes and connected to the frame column 17, so that the position of the anchor pad 3 can be stably locked;

[0032] Embodiment 2:

[0033] See also Figure 1-4 , this embodiment provides a technical solution based on the first embodiment: the anchor 6 includes an assembly tube 7, a supporting arc plate 10, an extension frame 11 and a positioning arc plate 12, the assembly tube 7 is assembled inside the limiting tube 5, the bottom of one end of the assembly tube 7 is fixedly connected with the supporting arc plate 10, both sides of one end of the assembly tube 7 are fixedly connected with the extension frame 11, the positioning arc plate 12 is rotatably connected between the two extension frames 11, the middle part of the positioning arc plate 12 is slidably connected with a displacement plate 13, one end of the displacement plate 13 located outside the positioning arc plate 12 is fixedly connected with a limiting clamp 14, and one end of the displacement plate 13 located inside the positioning arc plate 12 is fixedly connected with a stabilizing arc plate 15;

[0034] Preferably, both sides of one side of the limiting cylinder 5 are fixedly connected to the limiting blocks 8, and the limiting blocks 8 are provided with anti-slip slopes inside. Both sides of the middle part of the assembly cylinder 7 are fixedly connected to stabilizing blocks 9, and the end of the stabilizing block 9 away from the assembly cylinder 7 is provided with an inclined surface adapted to the anti-slip slope. By using the setting of the anti-slip slope and the inclined surface, after the assembly cylinder 7 is installed in the limiting cylinder 5, the inclined surface at the stabilizing block 9 will press against the anti-slip slope, so that the assembly cylinder 7 and the limiting cylinder 5 will not fall off.

[0035] Furthermore, the top ends of both sides of the positioning arc plate 12 are fixedly connected with extension ears, and the end of the extension frame 11 away from the assembly tube 7 is fixedly connected with a carrying rod, and the positioning arc plate 12 is connected to the outside of the carrying rod through the extension ear. By using the structural cooperation of the extension ear and the carrying rod, the positioning arc plate 12 can be stably assembled to ensure the application effect of the positioning arc plate 12;

[0036] In detail, a positioning clamp is fixedly connected to the middle of the supporting arc plate 10, and the positioning clamp and the limiting clamp 14 are connected by bolts. By using the setting of the positioning clamp, after the positioning arc plate 12 rotates, the limiting clamp 14 will fit with the positioning clamp, and then the bolts are passed through the positioning clamp and the limiting clamp 14 to lock the position of the positioning arc plate 12;

[0037] Furthermore, a receiving groove is provided on the inner side of the positioning arc plate 12, and the stabilizing arc plate 15 is located inside the receiving groove. By means of the setting of the receiving groove, after the limiting clamp 14 is away from the positioning clamp, the stabilizing arc plate 15 can return to the inside of the receiving groove, so that the steel strand 2 can be disassembled;

[0038] Among them, a plurality of stabilizing columns 16 are fixedly connected to the inner side of the stabilizing arc plate 15, and each stabilizing column 16 is tilted away from the assembly tube 7. The structural coordination of the stabilizing column 16 can press against the steel strand 2 to prevent the steel strand 2 from uncontrollable sliding;

[0039] In summary, the utility model has at least the following beneficial effects:

[0040] 1. Save labor costs: The installation and disassembly process of the utility model is simple and quick, which greatly reduces the dependence on manpower, thereby saving a lot of labor costs.

[0041] 2. Reduce material and rental costs: Compared with traditional steel pipe supports, the prestressed steel strands and steel frames used in the utility model are light in weight, low in cost, and reusable, which greatly reduces material and rental costs.

[0042] 3. Improve construction efficiency: Since the utility model can be quickly installed and disassembled, it can significantly improve construction efficiency and shorten the project period.

[0043] 4. Reduce space occupation: The utility model occupies a small space, does not affect the normal use of the basement and the progress of construction work, and improves space utilization.

[0044] 5. Improve the bearing capacity of the top plate 18: Through the prestressing technology, the utility model can effectively improve the bearing capacity of the top plate 18, ensuring the safety during construction and temporary use.

[0045] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] During work: During the structural concrete construction process, prestressed pipes are pre-buried at the frame column 17 in advance according to the design requirements. This step is to ensure that the subsequent installation and tensioning of the steel strand 2 can be carried out smoothly;

[0047] After the formwork support system is removed, the steel frame 1 is accurately installed at the bottom of the frame column 17 and the top plate 18 using a sling. The installation position and angle of the steel frame 1 should meet the design requirements to ensure the maximum reinforcement effect;

[0048] Arrange the steel strand 2 under the steel frame 1, install the anchor pad 3 at the appropriate position on the frame column 17, then put the assembly tube 7 on the end of the steel strand 2, and push the positioning arc plate 12 to rotate it under the support of the extension frame 11. Since the steel strand 2 is located in the assembly tube 7, the steel strand 2 will be bent during the rotation of the positioning arc plate 12 until the positioning arc plate 12 is spliced ​​with the supporting arc plate 10, and the steel strand 2 is positioned between the positioning arc plate 12 and the supporting arc plate 10. Then, pass the bolts through the limit clamp 14 and the positioning clamp, and tighten the bolts until The limiting clamp 14 fits with the positioning clamp, and during the displacement of the limiting clamp 14, the stabilizing arc plate 15 is brought close to the steel strand 2, so that the steel strand 2 is positioned here, which greatly ensures the stability of the steel strand 2 when anchored. Subsequently, the assembly cylinder 7 is placed into the corresponding limiting cylinder 5, and the limiting block 8 and the stabilizing block 9 are set to limit the assembly cylinder 7 to prevent the assembly cylinder 7 from being separated from the limiting cylinder 5. Subsequently, a predetermined prestress is applied to the steel strand 2 through a special tensioning device. The tensioning should be carried out evenly, and the strength should be controlled within the design range to avoid damage to the structure.

[0049] After the subsequent top plate 18 is constructed, the prestress in the steel strands 2 can be gradually unloaded by using a jack, and then the entire structure can be gradually dismantled.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temporary reinforcement device for a roof based on prestress, characterized in that: The invention comprises a steel frame (1), steel strands (2) and anchoring pads (3), wherein the steel strands (2) are evenly arranged at the bottom end of the steel frame (1), and both ends of the anchoring pads (3) are fixedly connected to positioning plates (4), and the interior of the positioning plates (4) is fixedly connected to a plurality of limiting cylinders (5), and the interior of each limiting cylinder (5) is equipped with an anchor (6), and the anchor (6) is used to cooperate with the steel strands (2) to transfer prestress.

2. The prestressed temporary top plate reinforcement device according to claim 1, characterized in that: The anchor (6) comprises an assembly tube (7), a supporting arc plate (10), an extension frame (11) and a positioning arc plate (12); the assembly tube (7) is assembled inside the limiting tube (5); the bottom of one end of the assembly tube (7) is fixedly connected to the supporting arc plate (10); both sides of one end of the assembly tube (7) are fixedly connected to the extension frames (11); a positioning arc plate (12) is rotatably connected between the two extension frames (11); a displacement plate (13) is slidably connected to the middle of the positioning arc plate (12); one end of the displacement plate (13) located outside the positioning arc plate (12) is fixedly connected to a limiting clamp (14); and one end of the displacement plate (13) located inside the positioning arc plate (12) is fixedly connected to a stabilizing arc plate (15).

3. The prestressed temporary top plate reinforcement device according to claim 1 is characterized in that: The steel frame (1) is welded by H-shaped steel.

4. The temporary reinforcement device for roof based on prestress according to claim 2 is characterized in that: Both sides of one side of the limiting cylinder (5) are fixedly connected to limiting blocks (8), and an anti-slip slope is provided inside the limiting block (8). Both sides of the middle part of the assembly cylinder (7) are fixedly connected to stabilizing blocks (9), and an end of the stabilizing block (9) away from the assembly cylinder (7) is provided with an inclined surface adapted to the anti-slip slope.

5. The temporary reinforcement device for roof based on prestress according to claim 2 is characterized in that: The top ends of both sides of the positioning arc plate (12) are fixedly connected with extension ears, one end of the extension frame (11) away from the assembly tube (7) is fixedly connected with a carrying rod, and the positioning arc plate (12) is connected to the outside of the carrying rod through the extension ears.

6. The temporary reinforcement device for roof based on prestress according to claim 2 is characterized in that: A positioning clamp is fixedly connected to the middle of the supporting arc plate (10), and the positioning clamp and the limiting clamp (14) are connected by bolts.

7. The temporary reinforcement device for roof based on prestress according to claim 2 is characterized in that: A receiving groove is provided on the inner side of the positioning arc plate (12), and the stabilizing arc plate (15) is located inside the receiving groove.

8. The prestressed temporary top plate reinforcement device according to claim 7 is characterized in that: A plurality of stabilizing columns (16) are fixedly connected to the inner side of the stabilizing arc plate (15), and each of the stabilizing columns (16) is arranged to be inclined in a direction away from the assembly tube (7).

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