Angle-adjustable arc-shaped top template

Abstract

The utility model belongs to the technical field of building construction, and relates to an angle-adjustable arc-shaped top formwork which comprises a supporting column, a supporting cross beam, an upper carrying pole beam, a lower carrying pole beam and a top formwork body, the upper carrying pole beam and the lower carrying pole beam are located on the upper side and the lower side of the supporting cross beam respectively, and the upper carrying pole beam, the supporting cross beam and the lower carrying pole beam are arranged in an I shape in the beam length direction. The supporting column is supported on the lower portion of the lower carrying pole beam from bottom to top, a plurality of lug plates with holes are arranged on the bottom face of the top formwork, and the lug plates are buckled on the upper carrying pole beam and the lower carrying pole beam in a pulling mode through pull rods capable of stretching and retracting in the axial direction to bend the top formwork in a stretching mode to form an arc-shaped face protruding upwards. The arc-shaped top formwork does not need to be precisely prefabricated in a factory, has universality, can be precisely adjusted to adapt to the actual dome radian requirement of a project, and is simpler, more efficient, low in cost and good in prefabricating effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction and relates to an arc-shaped top template with adjustable angle. Background Art

[0002] As architectural forms become increasingly diverse, many dome structures have emerged. These dome structures are usually prefabricated with reinforced concrete. However, in existing construction, a customized arc-shaped top formwork is usually used or a plurality of panels are assembled into a pseudo-arc shape. The defects of these two methods are that in the construction method of using a customized arc-shaped top formwork, the customized arc-shaped fixed formwork needs to be processed in the factory and then transported to the site for installation, so the size of the customized formwork cannot be made larger and the cost is high; and in the construction method of splicing multiple panels into a pseudo-arc shape, the arc line is not smooth enough after splicing and there are corners. Therefore, a simpler, more efficient, low-cost, and prefabricated arc-shaped top formwork device is needed to solve this technical problem. Utility Model Content

[0003] The technical solution adopted by the utility model to solve the technical problem is: an angle-adjustable arc-shaped top template, comprising: a supporting column, a supporting crossbeam, an upper shoulder beam, a lower shoulder beam, and a top template, wherein the upper shoulder beam and the lower shoulder beam are respectively located at the upper and lower sides of the supporting crossbeam, the upper shoulder beam, the supporting crossbeam, and the lower shoulder beam are arranged side by side in the length direction of the beam and in an "I" shape, the supporting column is supported from bottom to top on the lower part of the lower shoulder beam, a plurality of ear plates with holes are provided on the bottom surface of the top template, the ear plates are respectively buckled on the upper shoulder beam and the lower shoulder beam by axially retractable pull rods to bend the top template into an upwardly convex arc surface; the upper shoulder beam, the supporting crossbeam, and the lower shoulder beam are arranged along the beam in an I-shaped manner, so that each beam is arranged in layers in the vertical direction, and then the pull rod is used to hook the edge of the top template downward and pull the middle to support it upward, and the remaining parts are either hooked or supported so that the entire top template forms the same arc as the dome according to the design requirements, so as to facilitate the reinforced concrete construction.

[0004] Preferably, the pull rod is a threaded telescopic rod, and hooks are respectively provided at the upper and lower ends of the pull rod, the hook at the upper end of the pull rod is fixed in the hole of the ear plate, and the hook at the lower end of the pull rod is fixed in the pulling hole of the upper shoulder beam and / or the lower shoulder beam; since the telescopic length of the pull rod is adjustable, the pull rod is selected and adjusted according to the spacing between the ear plate holes at different parts of the top template and the pulling hole closest to the part, and then the hooks at both ends of the pull rod are used to hook the ear plates and the pulling holes respectively, and then the dome curvature is fine-tuned and tightened according to the design requirements to achieve the designed curvature of the prefabricated top template.

[0005] More preferably, a sleeve is provided in the middle section of the pull rod, and first screw holes with opposite rotation directions are provided at both ends of the sleeve. The first screw hole and the sleeve have the same rotation axis, the straight part of the tail end of the hook is threadedly connected to the first screw hole, and a through hole is radially provided in the middle of the sleeve; the screw holes with opposite rotation directions cooperate with the sleeve with the through hole in the middle, so that after the hooks at both ends are hooked, the sleeve can be rotated by a torque rod, such as a short steel bar, a screwdriver rod, a wrench handle, etc., to complete the contraction or extension of the pull rod to meet the requirements of different top template curvatures at different dome positions. After completing the precise fine-tuning of the curvature, the telescopic length of the pull rod can be fixed by fixing the torque rod to prevent deformation after being subjected to force.

[0006] Preferably, the top of the support column is provided with a liftable bracket with an opening facing upward, and the bottom of the lower shoulder beam is placed at the bottom of the bracket; the bracket supports the lower shoulder beam to prevent the lower shoulder beam from sliding sideways and falling, causing the top template to deform in curvature and thus affecting construction.

[0007] More preferably, a second screw hole is provided at the bottom of the bracket, and a vertically upward screw is provided at the top of the support column, and the screw is threadedly connected to the second screw hole; the liftable bracket can meet the construction requirements of different support heights at different sites, and enhance the applicability of arc top formwork construction.

[0008] Preferably, the supporting crossbeam is made of I-beam, and T-slots are respectively provided on the upper and lower shoulder beams in the extension direction, and the shape and size of the T-slots match the upper and lower flanges and webs of the I-beam of the supporting crossbeam. The upper and lower shoulder beams are respectively buckled at the upper and lower flanges of the supporting crossbeam through their own T-slots along the length direction; the way in which the T-slots buckle the upper and lower flanges of the I-beam makes the upper and lower shoulder beams and the supporting crossbeam more firmly fastened, more stable, safer and more reliable.

[0009] More preferably, the pulling holes are located on both sides of the upper shoulder pole beam and the lower shoulder pole beam; the pulling holes on both sides make the hook operation of the pulling rod more convenient.

[0010] Preferably, the bottom surface of the top formwork is provided with criss-cross ribs, and the ear plates are arranged at the criss-cross nodes of the ribs; arranging ribs at the bottom of the top formwork can improve the supporting rigidity of the top formwork, ensure the stability of the curvature of the dome during the prefabrication process, and at the same time reduce the number of supports of the bottom tie rods and reduce the construction workload.

[0011] The beneficial effects of the utility model are:

[0012] The arc-shaped top template of the utility model does not need to be precisely prefabricated in the factory, and is both universal and can be precisely adjusted to meet the actual dome curvature requirements of the project; the utility model can use templates with larger dimensions and specifications, and by adjusting the curvature of the template to adjust to the structural position, the finished surface of the structure casting is smoother, the cost is low, the operation is simple, and the prefabricated dome effect is better; the template of the utility model can be matched and connected with the existing supporting scaffolding, and no special customization of the lower supporting frame is required, and the versatility and applicability are good; the top template of the utility model is connected with the upper supporting groove-type shoulder pole beam and the lower hanging groove-type shoulder pole beam by a pull rod, and the upper supporting groove-type shoulder pole beam and the lower hanging groove-type shoulder pole beam cooperate in force by clamping the I-beam into the clamping slot to form a self-balancing force system, so that the entire structure is simple, stable, safe, reliable and effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of an arc-shaped top template with adjustable angle;

[0014] Figure 2 This is a schematic diagram of the erection of the arc-shaped top formwork frame;

[0015] Figure 3 yes Figure 1 A local enlarged schematic diagram of point A;

[0016] Figure 4 yes Figure 2 A partial enlarged schematic diagram of point B.

[0017] Among them, 1. support column; 2. support beam; 3. upper shoulder pole beam; 4. lower shoulder pole beam; 5. top template; 6. ear plate; 7. pull rod; 8. pull hook; 9. pull hole; 10. sleeve; 11. first screw hole; 12. through hole; 13. bracket; 14. second screw hole; 15. screw; 16. T-slot; 17. rib. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the relevant technologies in 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 of 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.

[0019] refer to Figures 1 to 4 The utility model is an angle-adjustable arc top template comprising: a top template 5, an ear plate 6, the ear plate 6 is divided into an inner ear plate and an outer ear plate, a pull rod 7, a sleeve 10, a draw hook 8, a draw hole 9, an upper shoulder beam 3, a supporting cross beam 2, a lower shoulder beam 4, a supporting column 1, and a bracket 13.

[0020] The top template 5 is manufactured in the factory in the form of a plane or a curved surface, and ear plates 6 are arranged at intervals on the lower edge of the top template 5. The side wall of the upper shoulder beam is provided with a side wall connecting plate or a pulling hole 9; the side wall of the lower shoulder beam is provided with a side wall connecting plate or a pulling hole 9.

[0021] The pull rod 7 includes a sleeve 10 and a hook 8. Two hooks 8 are connected to both sides of the sleeve 10, one of which is connected to the ear plate 6, and the other is connected to the side wall connecting plate or the pull hole 9. A rotating wire is provided in the outer ring of the hook 8 and the sleeve 10, and the extension and contraction of the knotting device can be realized by twisting.

[0022] T-shaped grooves are arranged on the upper shoulder beam 3 and the lower shoulder beam 4 along the length direction, and the upper and lower flanges of the I-beam of the supporting cross beam 2 are respectively clamped into the grooves by the upper shoulder beam 3 and the lower shoulder beam 4.

[0023] According to the design curvature of the top template 5, the length of the upper shoulder beam 3 is slightly smaller than the lower shoulder beam 4. The lower shoulder beam 4 is connected to the support column 1 through the bracket 13 and the height is adjustable.

[0024] The height-adjustable bracket 13 is U-shaped and supports the lower shoulder beam 4. An adjusting screw is arranged under the bracket 13 and is connected to the vertical rod.

[0025] The inner ear plate 6 of the top template 5 is connected to the side wall connecting plate or the pull hole 9 of the upper shoulder beam 3 through the tie rod 7, and the bending angle of the top template 5 is adjusted by adjusting the screwing length of the sleeve 10 of the tie rod 7 and the pull hook 8. The outer ear plate 6 of the top template 5 is connected to the side wall connecting plate or the pull hole 9 of the lower shoulder beam 4 through the tie rod 7, and the edge curvature of the top template 5 is adjusted by adjusting the screwing length of the sleeve 10 of the tie rod 7 and the pull hook 8.

[0026] The upper shoulder beam 3 and the lower shoulder beam 4 are connected to the top formwork 5 through the tie rod 7. The upper shoulder beam 3 and the lower shoulder beam 4 are synergistically stressed by clamping the I-beam into the clamping slot, and the lateral bending moment of the top formwork 5 generated by the tensioning is internally coordinated to the supporting scaffolding system, thereby increasing the stability of the frame.

[0027] Example

[0028] During construction preparation, the height of the support column 1, the length of the upper shoulder beam 3 and the lower shoulder beam 4 are selected according to the design plan of the dome, and according to actual needs, an I-beam is selected as the support beam 2 or multiple columns are welded to weld the upper shoulder beam 3 and the lower shoulder beam 4 as the support beam 2, and then a top template 5 of corresponding size is selected according to the design plan.

[0029] When constructing the top template 5, first adjust the support column 1 and the bracket 13 according to the designed height, place the pole beam 4 in the bracket 13, and then install and fix the support beam 2 and the upper pole beam 3 in sequence. After the top template 5 is pre-placed on the upper pole beam 3, the ear plate 6 is hooked downward at the edge of the top template 5 through the tie rod 7 according to the design size of the dome, and the ear plate 6 is supported upward in the middle of the top template 5. The remaining parts are hooked or supported according to the design. The corresponding ear plate 6 is completed to roughly build the top template 5. After measurement, the telescopic length of the tie rod 7 at each position is adjusted to perform precise fine-tuning. During fine-tuning, the torque rod rotates the sleeve 10 to complete the precise fine-tuning of the contraction or extension of the tie rod to meet the accuracy requirements of the dome curvature. After completing the precise fine-tuning of the curvature, the telescopic length of the tie rod 7 can be fixed by fixing the torque rod to prevent the top template 5 from deforming in the later stage.

[0030] Subsequently, reinforced concrete prefabrication work is carried out to prefabricate a dome with a more precise curvature on a more precise curved bottom formwork.

[0031] In summary, the arc-shaped top template of the utility model does not need to be accurately prefabricated in the factory, and is both universal and can be accurately adjusted to meet the actual dome curvature requirements of the project, which is simpler, more efficient, and has low cost and good prefabrication effect. Therefore, the utility model has a wide range of application prospects.

[0032] It should be emphasized that the above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An arc-shaped top template with adjustable angle, It is characterized in that include: A support column (1), a support crossbeam (2), an upper shoulder pole beam (3), a lower shoulder pole beam (4), and a top template (5); the upper shoulder pole beam (3) and the lower shoulder pole beam (4) are respectively located on the upper and lower sides of the support crossbeam (2); the upper shoulder pole beam (3), the support crossbeam (2), and the lower shoulder pole beam (4) are arranged side by side in an "I" shape along the length direction of the beams; the support column (1) is supported from bottom to top on the lower part of the lower shoulder pole beam (4); a plurality of ear plates (6) with holes are provided on the bottom surface of the top template (5); the ear plates (6) are respectively buckled on the upper shoulder pole beam (3) and the lower shoulder pole beam (4) through a pull rod (7) that can be retracted along the axial direction, so that the top template (5) is bent into an upwardly convex arc surface.

2. The angle-adjustable curved top template according to claim 1, It is characterized in that The pull rod (7) is a threaded telescopic rod, and the upper and lower ends of the pull rod (7) are respectively provided with pull hooks (8). The pull hook (8) at the upper end of the pull rod (7) is fixed in the hole of the ear plate (6), and the pull hook (8) at the lower end of the pull rod (7) is fixed in the pull hole (9) of the upper shoulder beam (3) and / or the lower shoulder beam (4).

3. The angle-adjustable curved top template according to claim 2, It is characterized in that A sleeve (10) is provided in the middle section of the pull rod (7), and first screw holes (11) with opposite rotation directions are provided at both ends of the sleeve (10). The first screw hole (11) and the sleeve (10) have the same rotation axis. The straight portion at the tail end of the pull hook (8) is threadedly connected to the first screw hole (11), and a through hole (12) is provided in the middle of the sleeve (10) along the radial direction.

4. The angle-adjustable curved top template according to claim 1, It is characterized in that The top of the support column (1) is provided with a bracket (13) which is liftable and opens upward, and the bottom of the lower shoulder beam (4) is placed at the bottom of the bracket (13).

5. The angle-adjustable curved top template according to claim 4, It is characterized in that A second screw hole (14) is provided at the bottom of the bracket (13), and a screw rod (15) extending vertically upward is provided at the top of the support column (1), and the screw rod (15) is threadedly connected to the second screw hole (14).

6. The angle-adjustable curved top template according to claim 2, It is characterized in that The supporting crossbeam (2) is made of I-beams, and the upper shoulder beam (3) and the lower shoulder beam (4) are respectively provided with T-shaped grooves (16) in the extension direction, and the shape and size of the T-shaped grooves (16) match the upper and lower flanges and the web of the I-beam of the supporting crossbeam (2). The upper shoulder beam (3) and the lower shoulder beam (4) are respectively buckled at the upper and lower flanges of the supporting crossbeam (2) through their respective T-shaped grooves (16) along the length direction.

7. The angle-adjustable curved top template according to claim 6, It is characterized in that The pulling holes (9) are located on both sides of the upper shoulder pole beam (3) and the lower shoulder pole beam (4).

8. The angle-adjustable curved top template according to claim 1, It is characterized in that The bottom surface of the top template (5) is provided with crisscross ribs (17), and the ear plates (6) are arranged at the crisscross nodes of the ribs (17).

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