Reinforcing device for large-span variable-cross-section arc-shaped beam formwork

Abstract

The utility model provides a reinforcing device for a large-span variable cross-section arc-shaped beam formwork, which comprises a longitudinal reinforcing unit arranged outside the arc-shaped beam formwork, and a transverse reinforcing unit is arranged outside the longitudinal reinforcing unit and inside a beam reinforcement cage. The longitudinal reinforcing unit and the transverse reinforcing unit are connected with the left side or the right side of the arc-shaped beam formwork through opposite-pulling units, and a reinforcing clamp with the adjustable size is arranged outside the transverse reinforcing unit. The arc-shaped beam forming device is suitable for construction of various variable-cross-section arc-shaped beams, good in arc-shaped beam forming effect, capable of being adjusted according to the height and the width of an arc-shaped beam template, wide in application range and easy to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of arc-shaped template reinforcement, in particular to a reinforcement device for large-span variable-section arc-shaped beam templates. Background Art

[0002] With the aesthetic design and visual impact of buildings, people's aesthetic and practical requirements for buildings are becoming more and more abundant. Various architectural forms emerge in an endless stream, and novel and unique architectural shapes are also very different in style. The shapes of curved windows, curved balconies, curved corners, etc. determine the appearance of curved beam components in the structure. In order to meet the needs of modeling, outdoor space, structural conversion, etc., and to ensure the force requirements, variable-section arc beams are designed for weak stress points by adding haunches. Compared with ordinary section beams, variable-section arc beams have higher technical requirements for frame support, beam curvature adjustment, and template reinforcement.

[0003] For example, the curved beam formwork construction tool and the curved beam construction method disclosed in the Chinese invention patent with a patent publication date of 2023.11.14 and patent publication number of CN117052126A include a bottom formwork and a top formwork, a plurality of standard formworks fixedly arranged between the top formwork and the bottom formwork, a rotating plug rod assembly for connecting two adjacent standard formworks on the left and right, a wire rope assembly for connecting all standard formworks on the same side formwork plane of the curved beam in series, and a tension bolt assembly for connecting the side formworks on both sides of the curved beam in the thickness direction.

[0004] In the above-mentioned prior art, arc beam templates of various sizes and curvatures are assembled and spliced ​​through standard templates and rotating rod assemblies and wire rope assemblies connecting the standard templates. However, the templates are only reinforced by tension screws passing through both sides. When the cross-sectional size of the arc beam is large, the bearing capacity of the tension screws may not meet the requirements, and bending is likely to occur, affecting the forming quality of the arc beam.

[0005] Therefore, how to effectively solve the problem that when the variable cross-section span of the curved beam is large, the middle part of the tension member has insufficient support force, resulting in the weak reinforcement of the beam formwork, is a technical problem that needs to be solved urgently. Utility Model Content

[0006] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a reinforcement device for large-span variable-section curved beam formwork, which solves the problem that when the variable-section span of the curved beam is large, the middle part of the tension member has insufficient support force, resulting in weak reinforcement of the beam formwork.

[0007] The technical solution of this application is:

[0008] A reinforcement device for a large-span variable-section curved beam formwork, comprising a longitudinal reinforcement unit arranged on the outside of the curved beam formwork, a transverse reinforcement unit arranged on the outside of the longitudinal reinforcement unit and inside the beam reinforcement cage, the longitudinal reinforcement unit and the transverse reinforcement unit are both connected to the left or right side of the curved beam formwork via a tensioning unit, and a reinforcement clamp with adjustable size is arranged on the outside of the transverse reinforcement unit. The transverse reinforcement unit serves as the main keel, and the longitudinal reinforcement unit serves as the secondary keel. The transverse reinforcement unit and the longitudinal reinforcement unit are connected to the arc beam formwork through the tension unit. At the same time, the reinforcement clamp is clamped on the outside of the transverse reinforcement unit to ensure the stability of the arc beam formwork. The cross-section of the arc beam formwork has a large span. The tension units are respectively arranged on the left and right sides of the arc beam formwork. The single-side formwork is reinforced separately and accurately fixed, avoiding the problem of insufficient support force in the middle part of the tension unit due to excessive cross-section. It is suitable for the construction of various variable-section arc beams and has good arc beam forming effect. The reinforcement clamp is clamped on the outside of the main keel and can be adjusted according to the height and width of the arc beam formwork. It has a wide range of applications and is easy to operate.

[0009] Furthermore, the longitudinal reinforcement unit includes a wooden beam that is attached to the outer wall of the curved beam template, and the height of the wooden beam is the same as the height of the curved beam template.

[0010] Furthermore, the transverse reinforcement unit includes steel bars arranged on the outer periphery of the arc-shaped beam formwork and inside the beam reinforcement cage, and steel pipes arranged on the inner periphery of the arc-shaped beam formwork, and the steel bars and the steel pipes are both clamped in the tensioning unit.

[0011] Furthermore, the tension unit includes a tension screw, and the steel bars and the steel pipes are crimped to the arc beam formwork or the beam reinforcement cage through nuts of the tension screws to effectively support and fix them.

[0012] Furthermore, the reinforcement clamp includes symmetrically arranged clamp assemblies, the distance between the clamp assemblies is adjustable, the clamp assembly includes a bottom support rod with a hollow sleeve rod at the end, the side support rod is sleeved and slidably matched with the hollow sleeve rod, and the side support rod and the hollow sleeve rod are both provided with a plurality of holes for the limit members to pass through.

[0013] Furthermore, a plurality of second holes are provided on the bottom support rod, and the limiting member sequentially passes through the first hole and the second hole on the adjacent hollow sleeve rod for limiting.

[0014] Furthermore, the limiting member comprises a pin with a diameter at one end larger than that at the other end, the aperture of the hole 1 is smaller than the diameter of the large diameter end of the pin, and the small diameter end of the pin is snap-fitted with a positioning pin.

[0015] Furthermore, the limiting member includes a bolt, and the bolt passes through the hole one and the hole two on the adjacent hollow sleeve rod and cooperates with the nut thread.

[0016] Furthermore, an auxiliary wooden beam is provided between the bottom support rod and the arc beam template to prevent the clamp assembly from being directly stuck on the template and causing deformation.

[0017] Furthermore, the curvature of the steel bar is adapted to the curvature of the arc-shaped beam template, and the bending angle is determined according to the angle of the arc-shaped beam, so that the reinforcement point is more accurate and the support is precise without affecting the arc forming effect.

[0018] The specific beneficial effects of the utility model include:

[0019] 1. The transverse reinforcement unit is used as the main keel, and the longitudinal reinforcement unit is used as the secondary keel. The transverse reinforcement unit and the longitudinal reinforcement unit are connected to the arc beam formwork through the tension unit. At the same time, the reinforcement clamp is clamped on the outside of the transverse reinforcement unit to ensure the stability of the arc beam formwork;

[0020] 2. The cross-section span of the curved beam template is relatively large. The tension units are respectively arranged on the left and right sides of the curved beam template. The single-side template is reinforced separately and accurately fixed, which avoids the problem of insufficient support force in the middle part of the tension unit due to the large cross-section. It is suitable for the construction of various variable-section curved beams, and the curved beam forming effect is good;

[0021] 3. The reinforcement fixture is clamped on the outside of the main keel and can be adjusted according to the height and width of the arc beam template. It has a wide range of applications and is easy to operate;

[0022] 4. The bendability and bending resistance of steel bars can be used to meet the special design requirements of curved structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the use status of Example 1 of the utility model;

[0025] Figure 2 for Figure 1 A perspective view of the section A-A';

[0026] Figure 3 for Figure 1 Sectional view of section A-A';

[0027] Figure 4This is a schematic diagram of the installation of the tension unit in Example 1;

[0028] Figure 5 This is a schematic diagram of the reinforcement fixture after installation in Example 1;

[0029] Figure 6 is a schematic diagram of the reinforcement fixture in Example 1;

[0030] Figure 7 is a cross-sectional view of the reinforcement fixture in Example 1;

[0031] Figure 8 This is a top view of the reinforcement clamp in Example 3.

[0032] Description of Figure Numbers:

[0033] 1. Longitudinal reinforcement unit; 2. Transverse reinforcement unit;

[0034] 3. Tension unit; 4. Reinforcement fixture;

[0035] 5. Auxiliary wooden beams;

[0036] 21. Steel bars; 22. Steel pipes;

[0037] 31. Tension screw; 32. Nut;

[0038] 41. Bottom support rod; 42. Hollow sleeve rod;

[0039] 43. Side support rod; 44. Limiting member;

[0040] 441, wedge-shaped pin; 442, positioning pin;

[0041] 45. Hole 1; 46. Hole 2. DETAILED DESCRIPTION

[0042] 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.

[0043] Embodiment 1, as Figure 1As shown, an armpit is added at the bend of the arc-shaped beam to improve the bearing capacity and stability of the arc-shaped beam. At the same time, when the arc-shaped beam is subjected to external force, the stress can be distributed more evenly, thereby improving the stability of the entire structure. However, the addition of the armpit will increase the cross-sectional width of the arc-shaped beam. Especially when the arc-shaped beam itself is a large-span arc-shaped beam, it is more difficult to reinforce the template of the arc-shaped beam. The utility model is mainly used to reinforce the bend of a large-span arc-shaped beam, and can meet the special design requirements of the arc-shaped structure.

[0044] A reinforcement device for large-span variable-section curved beam templates, such as Figure 2 As shown, it includes a longitudinal reinforcement unit 1 arranged on the outside of the curved beam formwork, and a transverse reinforcement unit 2 is arranged on the outside of the longitudinal reinforcement unit 1 and inside the beam reinforcement cage. The longitudinal reinforcement unit 1 and the transverse reinforcement unit 2 are both connected to the left or right side of the curved beam formwork through a tensioning unit 3, and a reinforcement clamp 4 with adjustable size is arranged on the outside of the transverse reinforcement unit 2. The transverse reinforcement unit 2 serves as the main keel, and the longitudinal reinforcement unit 1 serves as the secondary keel. The transverse reinforcement unit 2 and the longitudinal reinforcement unit 1 are connected to the arc beam formwork through the tension unit 3. At the same time, the reinforcement clamp 4 is clamped on the outside of the transverse reinforcement unit to ensure the stability of the arc beam formwork. The cross-section of the arc beam formwork has a large span. The tension units are respectively arranged on the left and right sides of the arc beam formwork. The single-side formwork is reinforced separately and accurately fixed, avoiding the problem of insufficient support force in the middle part of the tension unit due to excessive cross-section. It is suitable for the construction of various variable-section arc beams and has a good arc beam forming effect. The reinforcement clamp is clamped on the outside of the main keel and can be adjusted according to the height and width of the arc beam formwork. It has a wide range of applications and is easy to operate.

[0045] On the basis of the above-mentioned embodiment, the longitudinal reinforcement unit 1 comprises a wooden beam which is attached to the outer wall of the arc beam template, and the height of the wooden beam is the same as the height of the arc beam template. Figure 2 As shown, the height of the square timber arranged on the outside of the curved beam is greater than the height of the wooden beam arranged on the outside of the added armpit, and the top of the wooden beam arranged on the outside of the added armpit fits the lower surface of the floor slab, that is, it presses the side formwork and also supports the bottom formwork at the floor slab position.

[0046] Based on the above implementation, Figure 3 As shown, the transverse reinforcement unit 2 includes steel bars 21 arranged on the outer periphery of the arc beam formwork and inside the beam reinforcement cage, and steel pipes 22 arranged on the inner periphery of the arc beam formwork. The steel bars 21 and the steel pipes 22 are both clamped in the tensioning unit 3.

[0047] Specifically, the steel bars 21 are attached to the outer peripheral surface of the curved beam template and need to be pre-bent, and the bending angle is determined according to the angle of the curved beam; the steel bars 21 are made of HRB400 steel bars, two steel bars 21 are arranged on each tension unit 3, and at least two tension units 3 are arranged on the outside and inside of the curved beam template; the segment length of the steel bars 21 can be 3-4m.

[0048] Specifically, the junction between the armpit and the floor slab is in a broken line shape, and the steel pipe 22 can be cut according to the required length.

[0049] Based on the above implementation, Figure 4 As shown, the tension unit 3 includes a tension screw 31, and the steel bars 21 and the steel pipe 22 are crimped to the arc beam formwork or the beam reinforcement cage through the nut 32 of the tension screw 31. The steel bars 21 and the steel pipe 22 are stuck in the arc groove of the nut 32 to effectively support and fix them.

[0050] Based on the above implementation, Figure 5 As shown, the reinforcing clamp 4 includes symmetrically arranged clamp assemblies, the distance between the clamp assemblies is adjustable, the clamp assembly includes a bottom support rod 41 with a hollow sleeve rod 42 at the end, the side support rod 43 is sleeved and slidably matched with the hollow sleeve rod 42, and the side support rod 43 and the hollow sleeve rod 42 are both provided with a plurality of holes 45 for the limit members 44 to pass through.

[0051] Specifically, the clamp assembly is L-shaped, and two clamp assemblies are combined to form a U-shape. The arc beam template is clamped between the two clamp assemblies. The distance between the two clamp assemblies is adjusted according to the width of the arc beam template, and then the position is fixed by the limit member 44.

[0052] Specifically, the hollow sleeve rod 42 is welded to the support rod 41, and a plurality of holes 45 are provided on the hollow sleeve rod 42 and the support rod 41. The support rod 41 moves in the vertical direction and is limited by the limiting member according to the required fixed position.

[0053] Based on the above implementation, Figure 6 As shown, the bottom support rod 41 is provided with a plurality of second holes 46 , and the limiting member 44 sequentially passes through the first hole 45 and the second hole 46 on the adjacent hollow sleeve rod 42 for limiting.

[0054] Based on the above implementation, Figure 7 As shown, the limiting member 44 includes a pin 441 with a diameter at one end larger than that at the other end, the hole 45 has a diameter smaller than that of the large diameter end of the pin 441, and the small diameter end of the pin 441 is snap-fitted with a positioning pin 442.

[0055] On the basis of the above-mentioned implementation mode, an auxiliary wooden beam 5 is provided between the bottom support rod 41 and the arc beam template to prevent the clamp assembly from being directly stuck on the template and causing deformation.

[0056] Based on the above implementation mode, the curvature of the steel bar 21 is adapted to the curvature of the curved beam template. The steel bar 21 is attached to the outer peripheral surface of the curved beam template and needs to be pre-bent. The bending angle is determined according to the angle of the curved beam to make the reinforcement point more accurate and precisely supported without affecting the arc forming effect.

[0057] Specifically, the curved beam template can be made of 15 mm thick plywood, and the wooden beam can be made of 50×100 mm wooden beam; the steel pipe 22, the tension screw rod 31, and the nut 32 can be made of Q235 grade steel.

[0058] Example 2, as a preferred embodiment, is different from Example 1 in that it includes a longitudinal reinforcement unit 1 arranged on the outside of the curved beam formwork, and a transverse reinforcement unit 2 is arranged on the outside of the longitudinal reinforcement unit 1 and inside the beam steel cage. The longitudinal reinforcement unit 1 and the transverse reinforcement unit 2 are both connected to the left or right side of the curved beam formwork through a tensioning unit 3, and the outside of the transverse reinforcement unit 2 is provided with a reinforcement clamp 4 with adjustable size. The transverse reinforcement unit serves as the main keel, and the longitudinal reinforcement unit serves as the secondary keel. The transverse reinforcement unit and the longitudinal reinforcement unit are connected to the arc beam formwork through the tension unit. At the same time, the reinforcement clamp is clamped on the outside of the transverse reinforcement unit to ensure the stability of the arc beam formwork. The cross-section of the arc beam formwork has a large span. The tension units are respectively arranged on the left and right sides of the arc beam formwork. The single-side formwork is reinforced separately and accurately fixed, avoiding the problem of insufficient support force in the middle part of the tension unit due to excessive cross-section. It is suitable for the construction of various variable-section arc beams and has good arc beam forming effect. The reinforcement clamp is clamped on the outside of the main keel and can be adjusted according to the height and width of the arc beam formwork. It has a wide range of applications and is easy to operate.

[0059] On the basis of the above-mentioned embodiment, the longitudinal reinforcement unit 1 includes a wooden beam that is fitted with the outer wall of the curved beam formwork, the height of the wooden beam is the same as the height of the curved beam formwork, the height of the square wood arranged on the outside of the curved beam is greater than the height of the wooden beam arranged on the outside of the added armpit, and the top of the wooden beam arranged on the outside of the added armpit is fitted with the lower surface of the floor slab, that is, it presses the side formwork and also supports the bottom formwork at the floor slab position.

[0060] Based on the above implementation, Figure 3 As shown, the transverse reinforcement unit 2 includes steel bars 21 arranged on the outer periphery of the arc beam formwork and inside the beam reinforcement cage, and steel pipes 22 arranged on the inner periphery of the arc beam formwork. The steel bars 21 and the steel pipes 22 are both clamped in the tensioning unit 3.

[0061] Specifically, the steel bars 21 are attached to the outer peripheral surface of the arc-shaped beam formwork and need to be pre-bent, and the bending angle is determined according to the angle of the arc-shaped beam; the steel bars 21 are HRB400 steel bars, two steel bars 21 are arranged on each tension unit 3, and at least two tension units 3 are arranged on the outside and inside of the arc-shaped beam formwork; the segment length of the steel bars 21 can be 3-4m; the junction between the armpit and the floor slab is a broken line, and the steel pipe 22 can be cut according to the required length.

[0062] Based on the above implementation, Figure 4 As shown, the tension unit 3 includes a tension screw 31, and the steel bars 21 and the steel pipe 22 are crimped to the arc beam formwork or the beam reinforcement cage through the nut 32 of the tension screw 31. The steel bars 21 and the steel pipe 22 are stuck in the arc groove of the nut 32 to effectively support and fix them.

[0063] On the basis of the above embodiment, the reinforcement clamp 4 includes symmetrically arranged clamp assemblies, the distance between the clamp assemblies is adjustable, the clamp assembly includes a bottom support rod 41 with a hollow sleeve rod 42 at the end, the side support rod 43 is sleeved and slidably matched with the hollow sleeve rod 42, and the side support rod 43 and the hollow sleeve rod 42 are both provided with a plurality of holes 45 for the limit members 44 to pass through.

[0064] Specifically, the clamp assembly is L-shaped, and two clamp assemblies are combined to form a U-shape. The arc beam template is clamped between the two clamp assemblies. The distance between the two clamp assemblies is adjusted according to the width of the arc beam template, and then the position is fixed by the limit member 44.

[0065] Specifically, the hollow sleeve rod 42 is welded to the support rod 41, and a plurality of holes 45 are provided on the hollow sleeve rod 42 and the support rod 41. The support rod 41 moves in the vertical direction and is limited by the limiting member according to the required fixed position.

[0066] On the basis of the above embodiment, a plurality of holes 46 are provided on the bottom support rod 41, and the limiting member 44 passes through the hole 45 and the hole 46 on the adjacent hollow sleeve rod 42 in sequence for limiting, and the limiting member 44 includes a bolt, and the bolt passes through the hole 45 and the hole 46 on the adjacent hollow sleeve rod 42 and cooperates with the nut thread.

[0067] On the basis of the above-mentioned implementation mode, an auxiliary wooden beam 5 is arranged between the bottom support rod 41 and the arc beam template.

[0068] Based on the above implementation mode, the curvature of the steel bar 21 is adapted to the curvature of the curved beam template. The steel bar 21 is attached to the outer peripheral surface of the curved beam template and needs to be pre-bent. The bending angle is determined according to the angle of the curved beam to make the reinforcement point more accurate and precisely supported without affecting the arc forming effect.

[0069] Example 3, as a preferred implementation, is different from Example 1 and Example 2 in that the support rod 41 and the side support rod 43 are both made of I-beams, such as Figure 8 shown.

[0070] The parts not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0071] The above content shows and describes the basic principle, main features and beneficial effects of the utility model. The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A reinforcement device for a large-span variable-section curved beam formwork, characterized in that: The invention comprises a longitudinal reinforcement unit (1) arranged outside the arc-shaped beam template, a transverse reinforcement unit (2) being arranged outside the longitudinal reinforcement unit (1) and inside the beam reinforcement cage, the longitudinal reinforcement unit (1) and the transverse reinforcement unit (2) being connected to the left side or the right side of the arc-shaped beam template via a tensioning unit (3), and a reinforcement fixture (4) with adjustable size being arranged outside the transverse reinforcement unit (2).

2. The reinforcement device for a large-span variable-section curved beam formwork according to claim 1 is characterized in that: The longitudinal reinforcement unit (1) comprises a wooden beam fitted to the outer wall of the arc-shaped beam template, and the height of the wooden beam is the same as the height of the arc-shaped beam template.

3. The reinforcement device for a large-span variable-section curved beam formwork according to claim 1 or 2, characterized in that: The transverse reinforcement unit (2) comprises steel bars (21) arranged on the outer periphery of the arc-shaped beam template and inside the beam reinforcement cage, and steel pipes (22) arranged on the inner periphery of the arc-shaped beam template, and the steel bars (21) and the steel pipes (22) are both clamped in the tensioning unit (3).

4. The reinforcement device for a large-span variable-section curved beam formwork according to claim 3 is characterized in that: The tension unit (3) comprises a tension screw (31), and the steel bars (21) and the steel pipe (22) are both crimped to the arc-shaped beam formwork or the beam reinforcement cage via nuts (32) of the tension screw (31).

5. The reinforcement device for a large-span variable-section curved beam formwork according to any one of claims 1 to 2 and 4, characterized in that: The reinforcing clamp (4) comprises symmetrically arranged clamp assemblies, the distance between the clamp assemblies being adjustable, the clamp assemblies comprising a bottom support rod (41) having a hollow sleeve rod (42) arranged at the end, a side support rod (43) sleeved and slidably engaged with the hollow sleeve rod (42), and a plurality of holes (45) for the limiter (44) to pass through are arranged on the side support rod (43) and the hollow sleeve rod (42).

6. The reinforcement device for a large-span variable-section curved beam formwork according to claim 5 is characterized in that: The bottom support rod (41) is provided with a plurality of second holes (46), and the limiting member (44) sequentially passes through the first hole (45) and the second hole (46) on the adjacent hollow sleeve rod (42) for limiting.

7. The reinforcement device for a large-span variable-section curved beam formwork according to claim 5 is characterized in that: The stopper (44) comprises a pin (441) having a diameter at one end larger than that at the other end, the diameter of the first hole (45) is smaller than the diameter of the large diameter end of the pin (441), and the small diameter end of the pin (441) is snap-fitted with a positioning pin (442).

8. The reinforcement device for a large-span variable-section curved beam formwork according to claim 5 is characterized in that: The limiting member (44) comprises a bolt, which passes through the first hole (45), the second hole (46) on the adjacent hollow sleeve rod (42) and cooperates with the thread of the nut.

9. The reinforcement device for a large-span variable-section curved beam formwork according to claim 5 is characterized in that: An auxiliary wooden beam (5) is provided between the bottom support rod (41) and the arc-shaped beam template.

10. The reinforcement device for a large-span variable-section curved beam formwork according to claim 3, characterized in that: The curvature of the steel bar (21) matches the curvature of the curved beam template.

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