A combined universal formwork assembly for prefabricated reinforced concrete beams

Abstract

The present invention belongs to the technical field of prefabricated buildings, and specifically relates to a combined universal formwork assembly for prefabricated reinforced concrete beams. In view of the disadvantage that the length end formwork cannot be universal when the number of horizontal reinforcement bars or the diameter of the reinforcement bars change in the prior art for processing reinforced concrete prefabricated beams, the present invention adopts the following technical scheme: a combined universal formwork assembly for prefabricated reinforced concrete beams, the formwork assembly comprising: a height side formwork; a length end formwork, the length end formwork having a plurality of reinforcing bar circular holes for the longitudinal reinforcement bars of the prefabricated beam to pass through; a height fastener; a length fastener; a blocking blind head and / or an aperture adjustment sleeve; wherein the blocking blind head closes the reinforcing bar circular hole; wherein the aperture adjustment sleeve is arranged in the reinforcing bar circular hole, and the aperture adjustment sleeve has a reserved hole with a diameter smaller than that of the reinforcing bar circular hole. The beneficial effect of the present invention is that it can be applied to the production of prefabricated components with different reinforcement diameters.

Description

Technical Field

[0001] The invention belongs to the technical field of prefabricated buildings, and in particular relates to a combined universal formwork component for prefabricated reinforced concrete beams. Background Art

[0002] The non-reusability of formwork in prefabricated buildings is one of the important reasons for the high cost. Precast concrete beams are prefabricated components used in large-scale production of prefabricated buildings. When the cross-section of the precast beams is the same, but the number of horizontal steel bars varies greatly, the transverse end formwork of the precast beams is of various types and basically cannot be reused, which greatly increases the cost of prefabricated buildings.

[0003] In order to reduce the waste of formwork, increase the reuse rate of formwork and reduce the cost of prefabricated components, a universal formwork component for the prefabrication of assembled reinforced concrete beams was proposed. Summary of the invention

[0004] The present invention aims to solve the problem that the length end formwork cannot be universally used in the prior art for processing reinforced concrete precast beams when the number of reinforcement roots or the diameter of the horizontal reinforcement changes. The present invention provides a combined universal formwork component for precast reinforced concrete beams, which can still be used when the number of reinforcement roots and / or the diameter of the horizontal reinforcement changes.

[0005] To achieve the above object, the present invention adopts the following technical solution: a combined universal formwork assembly for prefabricated reinforced concrete beams, the formwork assembly comprising:

[0006] A height side formwork, wherein the height side formwork has two pieces and the height side formwork is vertically arranged;

[0007] The length end template has two pieces and is arranged between the two height side templates. The length end template is arranged vertically and has a plurality of circular holes for passing the longitudinal reinforcement of the precast beam;

[0008] A height fastener, which is installed on the two height side templates and fixes the position between the two height side templates;

[0009] A length fastener, which is installed on the length end template and fixes the position between the two length end templates;

[0010] Blocking blind heads and / or aperture adjustment sleeves;

[0011] Wherein, the plugging blind head seals the reinforcing round hole;

[0012] Wherein, the aperture adjustment sleeve is arranged in the rib-piercing circular hole, and the aperture adjustment sleeve has a reserved hole with a diameter smaller than that of the rib-piercing circular hole.

[0013] The template assembly of the present invention is provided with a plugging blind head and / or an aperture adjustment sleeve. When the number of horizontal steel bars needs to be adjusted, the plugging blind head can be inserted into the reinforcing circular hole. When the diameter of the horizontal steel bars needs to be adjusted, the aperture adjustment sleeve can be inserted into the reinforcing circular hole. Therefore, when the number of reinforcement roots or the diameter of the horizontal steel bars changes, only the plugging blind head and / or the aperture adjustment sleeve need to be inserted without replacing the length end template. The modular universal wooden board assembly of the prefabricated reinforced concrete beam of the present invention can be applied to the production of prefabricated beams with the same cross-section but different steel bar diameters and / or quantities. There is no need to match a set of templates for each specification of prefabricated beams, which greatly reduces the production cost of prefabricated components; all templates are modular, can be disassembled and combined as required, and can be reused, providing convenient conditions for the standardized production of prefabricated beams and effectively shortening the construction period. The plugging blind head and the aperture adjustment sleeve can be fixed to the length end template by threaded connection or interference fit.

[0014] As an improvement, each of the templates is made of steel templates.

[0015] As an improvement, the blocking blind head is T-shaped, and has a large diameter section and a small diameter section, and the small diameter section is located in the reinforcement round hole.

[0016] As an improvement, the aperture adjustment sleeve is T-shaped, and has a large diameter section and a small diameter section, and the small diameter section is located in the rib penetration circular hole.

[0017] As an improvement, the blocking blind head is threadedly connected to the rib-penetrating circular hole; the aperture adjustment sleeve is threadedly connected to the rib-penetrating circular hole.

[0018] As an improvement, the height fasteners include bolts and nuts, and the height side template is provided with bolt mounting holes.

[0019] As an improvement, a hole-opening piece is fixedly connected to the length end template, a threaded hole is opened in the height side template, and the length fastener includes a screw, which passes through the hole-opening piece and is screwed into the threaded hole.

[0020] As an improvement, a plurality of shear key protrusions are formed at the inner end of the length end template, and the shear key protrusions are located above the reinforcing bar holes. The shear key protrusions are used to form effective shear grooves at the ends of the beams after the precast beams are cast and demoulded.

[0021] As an improvement, the height side template located above is provided with a beam top leveling inverted opening in the length direction. The beam top leveling inverted opening can form a flat belt at the edge of the beam top after the height side template is demoulded.

[0022] As an improvement, the system further comprises positioning rods fixedly connected to the two length end templates. The positioning rods are used to fix the length end templates to prevent the length end templates from tipping over during the pouring and vibrating of concrete.

[0023] As an improvement, the positioning rod is arranged at the end of the length end template in the width direction.

[0024] The beneficial effects of the template assembly of the present invention are: it is equipped with a blocking blind head and / or an aperture adjustment sleeve, and the blocking blind head is used to block and fix the positions of the reinforcement holes where no longitudinal reinforcement is required from the outside with the blocking blind head when the number of longitudinal reinforcements of the prefabricated beam is less than the number of reinforcement holes of the length end template; when the diameter of the longitudinal reinforcement of the prefabricated beam is smaller than the diameter of the reinforcement hole, the aperture adjustment sleeve is inserted into the reinforcement hole, and the aperture of the reserved hole of the aperture adjustment sleeve is adapted to the diameter of the longitudinal reinforcement (the aperture of the reserved hole is slightly larger than the diameter of the longitudinal reinforcement), so that the combined universal template assembly can be suitable for the production of prefabricated components with different numbers of reinforcements and / or reinforcement diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the template assembly of the first embodiment of the present invention (when viewed from an angle perpendicular to the length).

[0026] Figure 2 Schematic diagram of the structure of the template assembly of the first embodiment of the present invention (when viewed from an angle perpendicular to the width).

[0027] Figure 3a It is a schematic structural diagram of the length end template of the template assembly of the first embodiment of the present invention.

[0028] Figure 3b yes Figure 3a sectional view of .

[0029] Figure 4 It is a structural schematic diagram of a blocking blind head and an aperture adjustment sleeve of a template assembly according to the first embodiment of the present invention.

[0030] Figure 5 It is a schematic structural diagram of the height side template of the template assembly of the second embodiment of the present invention.

[0031] Figure 6 It is a cross-sectional view of a positioning rod of a template assembly according to a second embodiment of the present invention.

[0032] Figure 7a It is a schematic structural diagram of the length end template of the template assembly of the third embodiment of the present invention.

[0033] Figure 7b yes Figure 7a sectional view of .

[0034] In the figure, 1, height side formwork; 11, beam top leveling counter mouth;

[0035] 2. Length end template; 21. Shear key protrusion; 22. Reinforcement round hole;

[0036] 3. High-strength fasteners;

[0037] 4. Length fasteners;

[0038] 5. Positioning rod;

[0039] 6. Block the blind end;

[0040] 7. Aperture adjustment sleeve. DETAILED DESCRIPTION

[0041] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0042] See also Figures 1 to 6 The present invention provides a combined universal formwork assembly for prefabricated reinforced concrete beams, the formwork assembly comprising:

[0043] A height side formwork, wherein the height side formwork has two pieces and the height side formwork is vertically arranged;

[0044] The length end template has two pieces and is arranged between the two height side templates. The length end template is arranged vertically and has a plurality of circular holes for passing the longitudinal reinforcement of the precast beam;

[0045] A height fastener, which is installed on the two height side templates and fixes the position between the two height side templates;

[0046] A length fastener, which is installed on the length end template and fixes the position between the two length end templates;

[0047] Blocking blind heads and / or aperture adjustment sleeves;

[0048] Wherein, the plugging blind head seals the reinforcing round hole;

[0049] Wherein, the aperture adjustment sleeve is arranged in the rib-piercing circular hole, and the aperture adjustment sleeve has a reserved hole with a diameter smaller than that of the rib-piercing circular hole.

[0050] The template assembly of the present invention is provided with a plugging blind head and / or an aperture adjustment sleeve. When the number of horizontal steel bars needs to be adjusted, the plugging blind head can be inserted into the reinforcing circular hole. When the diameter of the horizontal steel bars needs to be adjusted, the aperture adjustment sleeve can be inserted into the reinforcing circular hole. Therefore, when the number of reinforcement roots or the diameter of the horizontal steel bars changes, only the plugging blind head and / or the aperture adjustment sleeve need to be inserted without replacing the length end template. The modular universal wooden board assembly of the prefabricated reinforced concrete beam of the present invention can be applied to the production of prefabricated beams with the same cross-section but different steel bar diameters and / or quantities. There is no need to match a set of templates for each specification of prefabricated beams, which greatly reduces the production cost of prefabricated components; all templates are modular, can be disassembled and combined as required, and can be reused, providing convenient conditions for the standardized production of prefabricated beams and effectively shortening the construction period. The plugging blind head and the aperture adjustment sleeve can be fixed to the length end template by threaded connection or interference fit.

[0051] Embodiment 1

[0052] See also Figures 1 to 4 The present invention provides a combined universal formwork assembly for prefabricated reinforced concrete beams, the formwork assembly comprising:

[0053] A height side formwork 1, wherein the height side formwork 1 has two pieces and the height side formwork 1 is vertically arranged;

[0054] The length end template 2 has two pieces and is arranged between the two height side templates 1. The length end template 2 is vertically arranged and has a plurality of circular holes 22 for the longitudinal reinforcement of the precast beam to pass through.

[0055] A height fastener 3, wherein the height fastener 3 is installed on the two height side templates 1 and fixes the position between the two height side templates 1;

[0056] A length fastener 4, wherein the length fastener 4 is installed on the length end template 2 and fixes the position between the two length end templates 2;

[0057] Blocking the blind head 6 and / or the aperture adjustment sleeve 7;

[0058] The plugging blind head 6 seals the rib-piercing circular hole 22;

[0059] The aperture adjustment sleeve 7 is disposed in the rib-piercing circular hole 22 , and the aperture adjustment sleeve 7 has a reserved hole whose diameter is smaller than that of the rib-piercing circular hole 22 .

[0060] In this embodiment, the height side template 1 is L-shaped, and the height side template 1 has a vertical portion and a horizontal portion.

[0061] In this embodiment, each template is a steel template.

[0062] In this embodiment, the height h of the height side template 1 is 400~900mm (increased by modulus M / 2, M=100mm).

[0063] In this embodiment, the universal width b of the length end formwork 2 is 200~500mm (increased by the modulus M / 2, M=100mm), and the height dimension of the length end formwork 2 is set according to the maximum value of the precast beam height, for example 900mm, which can be used for casting precast beams with a beam height of 400~900mm (increased by the modulus M / 2, M=100mm). The length end formwork 2 has sufficient thickness and rigidity.

[0064] In this embodiment, the blocking blind head 6 is T-shaped, and the blocking blind head 6 has a large diameter section and a small diameter section, and the small diameter section is located in the rib penetration circular hole 22 .

[0065] In this embodiment, the aperture adjustment sleeve 7 is T-shaped, and has a large diameter section and a small diameter section, and the small diameter section is located in the rib penetration circular hole 22 .

[0066] In this embodiment, the blocking blind head 6 is threadedly connected to the rib-piercing circular hole 22 ; the aperture adjustment sleeve 7 is threadedly connected to the rib-piercing circular hole 22 .

[0067] In this embodiment, the diameter of the reinforcing circular hole 22 is between 25mm and 32mm. Specifically, the diameter of the reinforcing circular hole 22 on the length end template 2 is 31mm, which can be used for the 30mm longitudinal steel bar to pass through, and can also be used to achieve the passing of longitudinal steel bars of different diameters by cooperating with the aperture adjustment sleeve 7 with an outer diameter of 31mm. Among them, the diameters of the longitudinal steel bar reserved holes on the aperture adjustment sleeve 7 are 17mm, 19mm, 21mm, 23mm, and 26mm, respectively, corresponding to the passing of 16mm longitudinal steel bars, 18mm longitudinal steel bars, 20mm longitudinal steel bars, 22mm longitudinal steel bars, and 25mm longitudinal steel bars. For the reinforcing circular hole 22 that does not require the longitudinal steel bar to pass through, the blind head 6 can be used for blocking.

[0068] In this embodiment, the height fastener 3 includes bolts and nuts, and the height side template 1 is provided with bolt mounting holes.

[0069] In this embodiment, a hole-opening piece is fixedly connected to the length end template 2, a threaded hole is opened in the height side template 1, and the length fastener 4 includes a screw, which passes through the hole-opening piece and is screwed into the threaded hole.

[0070] In this embodiment, the system further comprises a positioning rod 5 fixedly connected to the two length end templates 2. The positioning rod 5 is used to fix the length end templates 2 to prevent the length end templates 2 from tipping over during the pouring and vibrating of concrete.

[0071] In this embodiment, the positioning rod 5 is arranged at the end of the length end template 2 in the width direction.

[0072] The beneficial effects of the template assembly of the first embodiment of the present invention are: it is equipped with a blocking blind head 6 and / or an aperture adjustment sleeve 7. The blocking blind head 6 is used to block and fix the position of the reinforcement circular hole 22 where no longitudinal reinforcement is required to be set with the blocking blind head 6 from the outside when the number of longitudinal reinforcements of the prefabricated beam is less than the number of reinforcement circular holes 22 of the length end template 2; when the diameter of the longitudinal reinforcement of the prefabricated beam is smaller than the diameter of the reinforcement circular hole 22, the aperture adjustment sleeve 7 is inserted into the reinforcement circular hole 22, and the aperture of the reserved hole of the aperture adjustment sleeve 7 is adapted to the diameter of the longitudinal reinforcement (the aperture of the reserved hole is slightly larger than the diameter of the longitudinal reinforcement), so that the combined universal template assembly can be applicable to the production of prefabricated components with different numbers of reinforcements and / or reinforcement diameters, thereby reducing the cost of the overall prefabricated building and promoting the popularization and application of prefabricated buildings.

[0073] Embodiment 2

[0074] The difference between the second embodiment and the first embodiment lies in the height side formwork 1 and the positioning rod 5 .

[0075] See also Figure 5 The height side template 1 located above is provided with a longitudinal beam top leveling inverted opening 11. The beam top leveling inverted opening 11 can form a flat belt at the edge of the beam top after the height side template 1 is demoulded.

[0076] See also Figure 6 The positioning rod 5 has a positioning groove, and the length end template 2 is embedded in the positioning groove, thereby ensuring the positioning effect of the positioning rod 5. The positioning rod 5 and the length end template 2 can be fixedly connected by screws, and the screws can be arranged along the width direction.

[0077] The other structures and effects of the second embodiment are the same as those of the first embodiment, and will not be described in detail here.

[0078] Embodiment 3

[0079] The difference between the third embodiment and the first embodiment is that the length end template 2 further has a shear key protrusion 21 .

[0080] See also Figure 7a and Figure 7b In this embodiment, a plurality of shear key protrusions 21 are formed at the inner end of the length end template 2, and the shear key protrusions 21 are located above the reinforcing bar circular holes 22. The shear key protrusions 21 are used to form effective shear grooves at the ends of the beams after the precast beams are cast and demoulded.

[0081] In this embodiment, the shear key protrusion 21 has multiple models and can be replaced according to the size of the beam cross section. A through hole is provided on the length end template 2, and the shear key protrusion 21 has a connecting shaft, which is matched with the through hole.

[0082] The other structures and effects of the third embodiment are the same as those of the first embodiment and will not be described in detail here.

[0083] The above is only a specific implementation of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. A modular universal formwork assembly for prefabricated reinforced concrete beams, characterized in that: The template components include: A height side formwork (1), wherein the height side formwork (1) has two pieces, and the height side formwork (1) is arranged vertically; A length end template (2), the length end template (2) having two pieces and arranged between the two height side templates (1), the length end template (2) being arranged vertically, and the length end template (2) being provided with a plurality of reinforcing bar circular holes (22) for the longitudinal reinforcing bars of the prefabricated beam to pass through; A height fastener (3), the height fastener (3) being installed on the two height side templates (1) and fixing the position between the two height side templates (1); A length fastener (4), wherein the length fastener (4) is installed on the length end template (2) and fixes the position between the two length end templates (2); Blocking the blind head (6) and / or the aperture adjustment sleeve (7); Wherein, the blocking blind head (6) seals the rib-piercing circular hole (22); Wherein, the aperture adjustment sleeve (7) is arranged in the rib-piercing circular hole (22), and the aperture adjustment sleeve (7) has a reserved hole with a diameter smaller than that of the rib-piercing circular hole (22); A plurality of shear key protrusions (21) are formed at the inner end of the length end template (2), and the shear key protrusions (21) are located above the rib penetration circular holes (22); The height side template (1) located at the top is provided with a beam top leveling opening (11) in the length direction.

2. The combined universal formwork assembly for prefabricated reinforced concrete beams according to claim 1, characterized in that: The blocking blind head (6) is T-shaped and has a large diameter section and a small diameter section, wherein the small diameter section is located in the rib penetration circular hole (22).

3. The combined universal formwork assembly for prefabricated reinforced concrete beams according to claim 1, characterized in that: The aperture adjustment sleeve (7) is T-shaped and has a large diameter section and a small diameter section, wherein the small diameter section is located in the rib penetration circular hole (22).

4. The combined universal formwork assembly for prefabricated reinforced concrete beams according to claim 1, characterized in that: The blocking blind head (6) is threadedly connected to the rib-penetrating circular hole (22); and the aperture adjustment sleeve (7) is threadedly connected to the rib-penetrating circular hole (22).

5. The combined universal formwork assembly for prefabricated reinforced concrete beams according to claim 1, characterized in that: The height fastener (3) comprises a bolt and a nut, and the height side template (1) is provided with a bolt mounting hole.

6. The combined universal formwork assembly for prefabricated reinforced concrete beams according to claim 1, characterized in that: A hole-opening piece is fixedly connected to the length end template (2), a threaded hole is opened in the height side template (1), and the length fastener (4) comprises a screw, which passes through the hole-opening piece and is screwed into the threaded hole.

7. The combined universal formwork assembly for prefabricated reinforced concrete beams according to claim 1, characterized in that: The template assembly also includes a positioning rod (5) fixedly connected to the two length end templates (2).

8. The combined universal formwork assembly for prefabricated reinforced concrete beams according to claim 7, characterized in that: The positioning rod (5) is arranged at the end of the length end template (2) in the width direction, and the positioning rod (5) has a positioning groove, and the length end template (2) is embedded in the positioning groove.

Images