Supporting device for superposed beam

Abstract

The utility model discloses a supporting device for a superposed beam, which comprises a supporting arm component, a fulcrum component arranged on a prefabricated column and an embedded part arranged on the prefabricated beam, two ends of the embedded part penetrate out of two side surfaces of the prefabricated beam in the width direction, one end of the supporting arm component is simultaneously connected with two ends of the embedded part, and the other end of the supporting arm component is connected with the other end of the embedded part. The other end of the supporting arm assembly abuts against the fulcrum assembly. According to the utility model, the embedded part and the supporting arm assembly are additionally arranged on the precast beam; when the composite beam is constructed and built, the supporting arm assemblies on the prefabricated beam abut against the fulcrum assemblies, so that the supporting pieces, the prefabricated beam and the prefabricated column form a triangular supporting structure, the embedded parts are used for providing supporting points close to the middle of the prefabricated beam relative to the prefabricated column, and therefore the bending bearing capacity of the prefabricated beam is improved; the middle area of the precast beam is prevented from being broken, an existing vertical supporting scheme is replaced, and occupation of the construction space below the precast beam and material loss are reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a support device for composite beams. Background Technology

[0002] Composite beams are beams that are poured with concrete in two stages. The first stage involves making precast beams at the prefabrication yard, and the second stage involves pouring the upper concrete on the construction site after the precast beams are hoisted and placed to form a whole.

[0003] During hoisting, each end of the precast beam is supported by a precast column. However, under the weight of its own body and construction loads (such as personnel and material stacking), the middle section of the long-span composite beam will experience a large bending moment, causing the precast beam to bend downwards. If the bending capacity of the precast beam is insufficient or the reinforcement design is unreasonable, cracks may appear in the middle area, or it may even be destroyed due to excessive deformation.

[0004] The current practice is to temporarily erect a vertical support structure below the middle section of the precast beam at the construction site. However, temporary supports require materials such as steel pipes, structural steel, and adjustable supports. If the span is large, high-load-bearing truss supports or full-span scaffolding are also needed, resulting in high material consumption. Furthermore, temporary supports occupy the construction space below, forcing concrete pouring, rebar tying, and other processes to be carried out in sections. In addition, temporary supports cannot be removed until the subsequently poured concrete reaches the design strength, causing delays in the construction period. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a support device for composite beams, which improves the bending bearing capacity of precast beams, avoids cracking in the middle area of ​​precast beams, and reduces the occupation of construction space and material waste under precast beams.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A support device for composite beams includes a support arm assembly, a fulcrum assembly for mounting on a precast column, and an embedded part for mounting on the precast beam. The two ends of the embedded part extend through two sides of the precast beam in the width direction. One end of the support arm assembly is connected to both ends of the embedded part, and the other end of the support arm assembly abuts against the fulcrum assembly.

[0008] Furthermore, it also includes a traction assembly for detachably mounted on the precast beam, one end of the support arm assembly being rotatably connected to both ends of the embedded part, and the traction assembly being detachably connected to the end of the support arm assembly away from the embedded part.

[0009] Furthermore, the support arm assembly includes a swing arm and a pressing member. The two ends of the pressing member are rotatably connected to the two ends of the embedded part through a swing arm, and the pressing member can press against the fulcrum assembly.

[0010] Furthermore, the pressing member is cylindrical, and the cylindrical surface of the pressing member is used to abut against the fulcrum assembly.

[0011] Furthermore, the traction assembly includes a traction rope and a take-up and undo reel for detachable mounting on the precast beam. One end of the traction rope is wound around the take-up and undo reel, and the other end of the traction rope is detachably connected to the end of the support arm assembly away from the embedded part.

[0012] Furthermore, the traction assembly also includes a fixed pulley, which is detachably mounted on the precast beam, and one end of the traction rope is arranged around the fixed pulley and detachably connected to the support arm assembly.

[0013] Furthermore, the fulcrum assembly has a first clamping end and a second clamping end, and the fulcrum assembly can be clamped and fixed to the precast column by the first clamping end and the second clamping end.

[0014] Furthermore, there are at least two of each of the support arm assembly, the fulcrum assembly, and the embedded part.

[0015] Furthermore, each of the support arm assemblies corresponds one-to-one with the embedded parts shown, and each fulcrum assembly corresponds to at least one support arm assembly.

[0016] The beneficial effects of this utility model are as follows: It provides a support device for composite beams, in which embedded parts and support arm assemblies are installed on the precast beams; when constructing the composite beams, the support arm assemblies on the precast beams are pressed against the fulcrum assemblies, so that the support, the precast beams and the precast columns form a triangular support structure. The embedded parts provide support points that are closer to the middle of the precast beams relative to the precast columns, thereby improving the bending bearing capacity of the precast beams, avoiding cracking in the middle area of ​​the precast beams, replacing the existing scheme of providing vertical support, and reducing the occupation of construction space and material waste under the precast beams. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a support device for composite beams of the present invention when it is housed on a precast beam;

[0018] Figure 2 This is a schematic diagram of the state of a support device for composite beams according to the present invention when it is on a precast beam and lowered by a traction component;

[0019] Figure 3 Figure 2Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of a support arm assembly of a support device for composite beams according to the present invention, with the support arm assembly pressing against the fulcrum assembly;

[0021] Figure 5 Figure 4 Enlarged schematic diagram of the structure at point B;

[0022] Figure 6 This is a schematic diagram of the structure of a support device for composite beams according to the present invention after the traction components have been removed from the precast beam.

[0023] Label Explanation:

[0024] 1. Support arm assembly; 2. Fulcrum assembly; 3. Embedded parts; 4. Traction assembly; 5. Precast beam; 6. Precast column;

[0025] 11. Rocker arm; 12. Pressing component;

[0026] 21. First clamping end; 22. Second clamping end;

[0027] 41. Winding reel; 42. Traction rope; 43. Fixed pulley. Detailed Implementation

[0028] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0029] Please refer to Figures 1 to 6 A support device for composite beams includes a support arm assembly 1, a fulcrum assembly 2 for mounting on a precast column 6, and an embedded part 3 for mounting on a precast beam 5. The two ends of the embedded part 3 extend through the two sides of the precast beam 5 in the width direction. One end of the support arm assembly 1 is connected to both ends of the embedded part 3, and the other end of the support arm assembly 1 presses against the fulcrum assembly 2.

[0030] As can be seen from the above description, the beneficial effects of this utility model are as follows: An embedded part 3 and a support arm assembly 1 are added to the precast beam 5; when constructing the composite beam, the support arm assembly 1 on the precast beam 5 is pressed against the fulcrum assembly 2, so that the support, precast beam 5, and precast column 6 form a triangular support structure. The embedded part 3 provides a support point that is closer to the middle of the precast beam 5 relative to the precast column 6, thereby improving the bending bearing capacity of the precast beam 5, preventing cracking in the middle area of ​​the precast beam 5, replacing the existing scheme of providing vertical support, and reducing the occupation of construction space and material consumption below the precast beam 5.

[0031] Furthermore, it also includes a traction assembly 4 for detachably mounted on the precast beam 5, one end of the support arm assembly 1 being rotatably connected to both ends of the embedded part 3, and the traction assembly 4 being detachably connected to the end of the support arm assembly 1 away from the embedded part 3.

[0032] As can be seen from the above description, the existence of the traction component 4 allows the support arm component 1 to be temporarily stored on the precast beam 5 by controlling the rotation of the support arm component 1 during the transportation and hoisting stage, ensuring convenient transportation. After the precast beam 5 is in place, the support arm component 1 can be flexibly lowered through the traction operation to avoid injuring construction personnel when it rotates downwards. At the same time, the detachable design makes it easy to remove the traction component 4 later without affecting subsequent operations.

[0033] Furthermore, the support arm assembly 1 includes a swing arm 11 and a pressing member 12. The two ends of the pressing member 12 are rotatably connected to the two ends of the embedded part 3 through a swing arm 11, and the pressing member 12 can press against the fulcrum assembly 2.

[0034] As can be seen from the above description, the structure in which the swing rod 11 is rotatably connected to the embedded part 3 gives the pressing part 12 the ability to adjust at multiple angles, which can be adapted to the fulcrum assembly 2 of different heights and angles, thus enhancing the versatility of the support device; and, by utilizing the cooperation between the two ends of the swing rod 11 and the embedded part 3, the support strength and stability can be improved.

[0035] Furthermore, the pressing member 12 is cylindrical, and the cylindrical surface of the pressing member 12 is used to abut against the fulcrum assembly 2.

[0036] As described above, the pressing member 12 is cylindrical, and its cylindrical surface is used to abut against the fulcrum assembly 2 to ensure that the pressing member 12 and the fulcrum assembly 2 have a sufficiently large contact area when the swing arm 11 is at different rotation angles. Furthermore, the arc-shaped structure of the cylindrical surface can evenly distribute the force in all directions when subjected to force, avoiding excessive local force on the fulcrum assembly 2 and causing damage.

[0037] Furthermore, the traction assembly 4 includes a traction rope 42 and a take-up and undo reel 41 detachably mounted on the precast beam 5. One end of the traction rope 42 is wound around the take-up and undo reel 41, and the other end of the traction rope 42 is detachably connected to the end of the support arm assembly 1 away from the embedded part 3.

[0038] As can be seen from the above description, the combination of the winding and unwinding reel 41 and the traction rope 42 provides a convenient way to adjust the position of the support arm assembly 1. Construction workers can easily control the winding and unwinding of the traction rope 42 by rotating the winding and unwinding reel 41 on the precast beam 5, and accurately adjust the angle and position of the support arm assembly 1. Compared with manually pushing and pulling the support arm assembly 1, the operation is more labor-saving.

[0039] Furthermore, the traction assembly 4 also includes a fixed pulley 43, which is detachably mounted on the precast beam 5. One end of the traction rope 42 is arranged around the fixed pulley 43 and detachably connected to the support arm assembly 1.

[0040] As can be seen from the above description, the addition of the fixed pulley 43 changes the direction of the tension of the traction rope 42, allowing construction workers to apply force in a more convenient position. Especially in complex construction environments, it can effectively solve the problem of limited space. At the same time, the fixed pulley 43 can reduce the friction between the traction rope 42 and the surface of the precast beam 5, avoid wear on the traction rope 42, and extend its service life. In addition, by reasonably arranging the position of the fixed pulley 43, it can also achieve a labor-saving effect, reduce the labor intensity of construction workers, and further improve construction efficiency and operational safety.

[0041] Furthermore, the fulcrum assembly 2 has a first clamping end 21 and a second clamping end 22, and the fulcrum assembly 2 can be clamped and fixed to the precast column 6 through the first clamping end 21 and the second clamping end 22.

[0042] As can be seen from the above description, the design of the double clamping ends makes the connection between the fulcrum component 2 and the precast column 6 more secure and reliable, providing greater clamping force and effectively preventing the fulcrum component 2 from loosening or slipping on the precast column 6, thus ensuring the stability of the entire fulcrum component 2. Moreover, this clamping and fixing method is convenient to install and disassemble, without the need for destructive operations such as drilling holes in the precast column 6, which can protect the structural integrity of the precast column 6. At the same time, it is easy to quickly adjust the upper and lower installation positions of the fulcrum component 2 according to the angle requirements of the support, thereby improving the flexibility of construction.

[0043] Furthermore, there are at least two of each of the support arm assembly 1, the fulcrum assembly 2, and the embedded part 3.

[0044] As can be seen from the above description, the multiple support arm components 1, fulcrum components 2 and embedded parts 3 work together to distribute the load on the precast beam 5, significantly improving the load-bearing capacity and stability of the support device; the arrangement of multiple components can also be flexibly adjusted according to the size, weight and other parameters of the precast beam 5 to adapt to the construction needs of composite beams of different specifications, enhancing the versatility and adaptability of the support device.

[0045] Furthermore, the support arm assembly 1 corresponds one-to-one with the embedded part 3 shown, and one fulcrum assembly 2 corresponds to at least one support arm assembly 1.

[0046] As can be seen from the above description, the support arm assembly 1 corresponds one-to-one with the embedded part 3, ensuring the balanced force of each support point, making the support force on the precast beam 5 more evenly distributed, and effectively improving the bending performance and structural stability of the precast beam 5; the design of one fulcrum assembly 2 corresponding to multiple support arm assemblies 1 further enhances the support strength without increasing too many fixing points on the precast column 6.

[0047] Please refer to Figures 1 to 6 Embodiment 1 of this utility model is as follows:

[0048] A support device for composite beams includes a support arm assembly 1, a fulcrum assembly 2 for mounting on a precast column 6, and an embedded part 3 for mounting on a precast beam 5. The two ends of the embedded part 3 extend through the two sides of the precast beam 5 in the width direction. One end of the support arm assembly 1 is connected to both ends of the embedded part 3, and the other end of the support arm assembly 1 presses against the fulcrum assembly 2.

[0049] In this embodiment, there are at least two support arm assemblies 1, fulcrum assemblies 2, and embedded parts 3. Furthermore, there is a one-to-one correspondence between the support arm assemblies 1 and the embedded parts 3 shown, and one fulcrum assembly 2 corresponds to at least one support arm assembly 1.

[0050] The construction process of a support device for composite beams in this embodiment is as follows:

[0051] First, the precast beam 5 with the support arm assembly 1 and the embedded part 3 is erected on the two precast columns 6;

[0052] Then, the support assembly 2 is installed on the precast column 6, so that the end of the support arm assembly 1 away from the embedded part 3 presses against the support assembly 2, specifically as follows: Figure 4 and Figure 5 As shown, there is an embedded part 3 on the precast beam 5 at a position closer to its two ends than the middle; each embedded part 3 is connected to a support arm assembly 1, and the lower end of the support arm assembly 1 presses against the fulcrum assembly 2 of the nearest precast column 6, so that the pressure exerted by the precast beam 5 on the support arm assembly 1 is distributed to the precast column 6.

[0053] It is understood that in other equivalent embodiments, there can be two or more support arm assemblies 1, fulcrum assemblies 2 and embedded parts 3 on the same side; the length of support arm assembly 1 can be determined according to the position of embedded part 3, the installation position of fulcrum assemblies 2 or the angle between the preset support arm assembly 1 and the precast column 6.

[0054] Furthermore, a suitable limiting part can be provided on the fulcrum assembly 2 so that the support arm assembly 1 can press against it, or the end of the support arm assembly 1 can press against the side of both the fulcrum assembly 2 and the precast column 6.

[0055] Please refer to Figures 1 to 6 Embodiment two of this utility model is as follows:

[0056] A support device for composite beams, based on the above embodiment 1, further includes a traction component 4 for detachably mounted on the precast beam 5. One end of the support arm component 1 is rotatably connected to both ends of the embedded part 3, and the traction component 4 is detachably connected to the end of the support arm component 1 away from the embedded part 3.

[0057] In this embodiment, as Figure 1 As shown, the rotation surface of the support arm assembly 1 is parallel to the side where the embedded part 3 is located on the precast beam 5; the traction assembly 4 controls the support arm assembly 1 to rotate upward, so that the support arm assembly 1 is as close as possible to the bottom of the precast beam 5. At this time, the support arm assembly 1 is in the retracted state. During transportation, there are spacers between the upper and lower layers of precast beams 5; the spacers provide a gap that can just accommodate the part of the support arm assembly 1 located below the precast beam 5.

[0058] In this embodiment, the traction assembly 4 includes a traction rope 42 and a take-up / untake-off reel 41 and a fixed pulley 43 detachably mounted on the precast beam 5. One end of the traction rope 42 is wound around the take-up / untake-off reel 41, and the other end of the traction rope 42 passes around the fixed pulley 43 and is detachably connected to the end of the support arm assembly 1 away from the embedded part 3. Figure 2 As shown, the winding and unwinding reel 41 is located near the end of the precast beam 5, while the fixed pulley 43 is located near the middle part of the precast beam 5; one end of the traction rope 42 is connected to the end of the support arm assembly 1 used to press against the fulcrum assembly 2, and the position of the fixed pulley 43 corresponds to the highest position that the end of the support arm assembly 1 used to press against the fulcrum assembly 2 can reach when it rotates upward, so as to facilitate the construction personnel to lower or retract the support arm assembly 1.

[0059] In this embodiment, as Figure 1 As shown, during the process of transporting the precast beam 5 to the construction site, the support arm assembly 1 can be stored under the precast beam 5 using a traction device. The specific operation includes: rotating the take-up and release reel 41 so that the traction rope 42 pulls the pressure member 12 on the swing arm 11 upward, and finally makes the pressure member 12 fit against the bottom of the precast beam 5.

[0060] And, as Figures 2 to 5 As shown, before installing the support assembly 2 on the precast column 6, the construction personnel rotate the take-up and release reel 41 to lower the pressure member 12, and then determine the support angle. The support angle is based on the angle between the swing rod 11 and the precast column 6, which is generally 40° to 50°, preferably 45°. After determining the support angle, the support assembly 2 is installed at the corresponding position of the precast column 6 to ensure that the pressure member 12 simultaneously presses against the upper surface of the support assembly 2 and the side of the precast column 6.

[0061] like Figure 6 As shown, once the swing arm 11, the pressing member 12, and the fulcrum assembly 2 form a support structure between the precast beam 5 and the precast column 6, the traction rope 42, the winding and unwinding reel 41, and the fixed pulley 43 can be removed.

[0062] Please refer to Figures 2 to 5 Embodiment three of this utility model is as follows:

[0063] A support device for composite beams, based on embodiments one, two, or three above, includes a support arm assembly 1 comprising a swing arm 11 and a pressing member 12. The pressing member 12 is rotatably connected to both ends of an embedded part 3 via a swing arm 11, and the pressing member 12 can press against the fulcrum assembly 2. The pressing member 12 is cylindrical, and its cylindrical surface is used to abut against the fulcrum assembly 2.

[0064] like Figures 3 to 5 As shown, the rocker arm 11 and the embedded part 3 can be connected by a rotating method such as a bearing connection or a pin sleeve connection. When the rocker arm 11 rotates and causes a change in the support angle, the cylindrical surface design of the pressing part 12 ensures that it has sufficient contact area with the fulcrum assembly 2.

[0065] Please refer to Figure 5 Embodiment four of this utility model is as follows:

[0066] A support device for composite beams, based on the above-described embodiments two or three, in order to accommodate the changes in support point position or support angle caused by the length and rotation angle of the support arm assembly 1, the fulcrum assembly 2 is designed to be able to flexibly select a fixed position on the precast column 6.

[0067] As a preferred design, the fulcrum assembly 2 has a first clamping end 21 and a second clamping end 22, and the fulcrum assembly 2 can be clamped and fixed to the precast column 6 through the first clamping end 21 and the second clamping end 22. The clamping is achieved by using an elastic telescopic member or a screw locking mechanism between the two clamping blocks to control their proximity, thus clamping the precast column 6.

[0068] In summary, this utility model provides a support device for composite beams, which involves adding embedded parts and support arm assemblies to precast beams. During the construction and erection of the composite beams, the support arm assemblies on the precast beams are pressed against the fulcrum assemblies, forming a triangular support structure with the support components, precast beams, and precast columns. The embedded parts provide a support point closer to the center of the precast beam relative to the precast columns, thereby improving the bending load-bearing capacity of the precast beams and preventing cracking in the middle area. This replaces existing vertical support solutions, reducing the occupation of construction space and material waste below the precast beams. Furthermore, during the transportation and hoisting phases of the precast beams, the traction assembly can temporarily store the support arm assembly on its weight by controlling its rotation, ensuring convenient transportation. After the precast beams are in place, the support arm assembly can be flexibly lowered through traction, preventing it from injuring construction personnel during downward rotation. The detachable design facilitates the removal of the traction assembly later without affecting subsequent operations. The abutment on the support arm assembly is cylindrical, and its cylindrical surface is used to abut against the fulcrum assembly to ensure that the abutment and the fulcrum assembly have a sufficiently large contact area when the swing arm is at different rotation angles. Furthermore, the arc-shaped structure of the cylindrical surface can evenly distribute the force in all directions when subjected to force, avoiding excessive local stress on the fulcrum assembly and thus preventing damage.

[0069] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A support device for composite beams, characterized in that, It includes a support arm assembly, a fulcrum assembly for mounting on a precast column, and an embedded part for mounting on a precast beam. The two ends of the embedded part protrude from the two sides of the precast beam in the width direction. One end of the support arm assembly is connected to both ends of the embedded part, and the other end of the support arm assembly abuts against the fulcrum assembly.

2. A support device for composite beams according to claim 1, characterized in that, It also includes a traction assembly for detachably mounted on the precast beam, one end of the support arm assembly being rotatably connected to both ends of the embedded part, and the traction assembly being detachably connected to the end of the support arm assembly away from the embedded part.

3. A support device for composite beams according to claim 2, characterized in that, The support arm assembly includes a swing arm and a pressing member. The two ends of the pressing member are rotatably connected to the two ends of the embedded part through a swing arm, and the pressing member can press against the fulcrum assembly.

4. A support device for composite beams according to claim 3, characterized in that, The pressing member is cylindrical, and the cylindrical surface of the pressing member is used to abut against the fulcrum assembly.

5. A support device for composite beams according to claim 2, characterized in that, The traction assembly includes a traction rope and a take-up and unsteer reel detachably mounted on the precast beam. One end of the traction rope is wound around the take-up and unsteer reel, and the other end of the traction rope is detachably connected to the end of the support arm assembly away from the embedded part.

6. A support device for composite beams according to claim 5, characterized in that, The traction assembly also includes a fixed pulley, which is detachably mounted on the precast beam. One end of the traction rope passes around the fixed pulley and is detachably connected to the support arm assembly.

7. A support device for composite beams according to claim 1, characterized in that, The fulcrum assembly has a first clamping end and a second clamping end, and the fulcrum assembly can be clamped and fixed to the precast column by the first clamping end and the second clamping end.

8. A support device for composite beams according to claim 1, characterized in that, There are at least two of each of the support arm assembly, the fulcrum assembly, and the embedded part.

9. A support device for composite beams according to claim 8, characterized in that, The support arm assembly corresponds one-to-one with the embedded part shown, and one fulcrum assembly corresponds to at least one support arm assembly.

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