A precast concrete frame beam structure

Abstract

This invention relates to the field of precast concrete frame beam technology and discloses a precast concrete frame beam structure, including a side support frame, a crossbeam frame at the top of the side support frame, a lifting assembly at the bottom of the crossbeam frame, a protective guide assembly on the outside of the lifting assembly, and a side protection assembly at the top of the lifting assembly. The side support frame is used to support the two sides of the crossbeam frame, the side protection assembly is used to support the middle of the crossbeam frame and limit its sides, the lifting assembly is used to adjust the load-bearing height of the side protection assembly, and the protective guide assembly is used to protect the lifting assembly. This device, through the cooperation of the lifting assembly and the side protection assembly, and by setting a rotatable side protection assembly, allows for fine-tuning of its angle before docking, thereby enabling precise docking of the side protection assembly with the crossbeam frame, and thus allowing the lifting assembly to be precisely aligned with the design position when deployed.

Description

Technical Field

[0001] This invention relates to the field of precast concrete frame beam technology, specifically to a precast concrete frame beam structure. Background Technology

[0002] In existing technologies, frame structures are the most widely used structures in the construction industry. They can also be combined with shear wall structures and tube structures to form frame-shear wall systems and frame-tube systems. Therefore, in order to promote prefabricated structural assembly systems, it is particularly necessary to study the connection methods between beams and columns in prefabricated frame structures. As we all know, frame structures can work as a whole, and reliable connections between frame columns and frame beams are crucial.

[0003] A search revealed a Chinese patent application with patent number CN201710282979.X, which discloses a precast concrete frame beam structure, including a precast concrete beam, a precast concrete beam-column joint, longitudinal reinforcement bars in the beam, longitudinal reinforcement bars in the joint, and welded reinforcement bars. Precast concrete beam-column joints are set at both ends of the precast concrete beam. Longitudinal reinforcement bars are threaded through the precast concrete beam and the joint, respectively. The longitudinal reinforcement bars extend beyond the ends of the precast concrete beam and the precast concrete beam-column joint. Welded reinforcement bars lap the longitudinal reinforcement bars extending beyond the ends of the precast concrete beam and the joint, and the lap joints are fixed by pouring concrete.

[0004] The precast concrete frame beam structure in the aforementioned patent has the following shortcomings: during the construction of the frame beam, it is impossible to reinforce the stability between the longitudinal steel bars of the beam, which will lead to instability of the frame beam. Therefore, those skilled in the art provide a precast concrete frame beam structure to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a precast concrete frame beam structure to solve the problems mentioned in the background section of the prior art.

[0006] The present invention provides the following technical solution: a precast concrete frame beam structure, including a side support frame, a crossbeam frame at the top of the side support frame, a lifting assembly at the bottom of the crossbeam frame, a protective guide assembly on the outside of the lifting assembly, and a side protection assembly at the top of the lifting assembly. The side support frame is used to support both sides of the crossbeam frame, the side protection assembly is used to support the middle of the crossbeam frame and limit its sides, the lifting assembly is used to adjust the bearing height of the side protection assembly, and the protective guide assembly is used to protect the lifting assembly and guide it during its lifting process.

[0007] As a preferred embodiment of the above technical solution, the side support frame includes a base plate, uprights, and reinforcing frames. Uprights are fixedly connected to both sides of the top of the base plate. The reinforcing frames are arranged in a linear array along the height direction of the uprights. Multiple uprights and the reinforcing frames on their outer sides together form a support leg. As a preferred embodiment of the above technical solution, the beam frame includes crossbars, rectangular reinforcing frames, a first triangular reinforcing frame, and a second triangular reinforcing frame. Multiple crossbars are arranged parallel to each other along the length of the beam frame. Multiple rectangular reinforcing frames are arranged in a linear array along the length of the crossbars. The first and second triangular reinforcing frames are respectively positioned between two adjacent rectangular reinforcing frames, and the first and second triangular reinforcing frames are positioned opposite each other. As a preferred embodiment of the above technical solution, the protective guide assembly includes an outer sleeve, a middle sleeve, and an inner sleeve. The outer sleeve is disposed on the top of the base plate, the middle sleeve is slidably inserted into the interior of the outer sleeve, and the inner sleeve is slidably inserted into the interior of the middle sleeve. As a preferred embodiment of the above technical solution, the lifting assembly includes a base, which is disposed on the top of the base plate and located below the middle of the crossbeam frame. As a preferred embodiment of the above technical solution, a drive motor is fixedly connected to one side of the base, and a double-ended screw is fixedly connected to the output end of the drive motor. The two ends of the double-ended screw have opposite thread directions. Lower guide rails are fixedly connected to both sides of the top of the base, and two opposing sliding lower platforms are slidably arranged on the top of the lower guide rails. The two sliding lower platforms are respectively threaded to the two ends of the double-ended screw. As a preferred embodiment of the above technical solution, a scissor lift is provided on the top of the two sliding platforms, an upper sliding platform is provided on the top of the scissor lift, an upper guide rail is slidably arranged inside the upper sliding platform, a top plate is fixedly connected to the top of the upper guide rail, and a side protection assembly is installed on the top of the top plate. As a preferred embodiment of the above technical solution, the side protection assembly includes a turntable, which is fixedly connected to the top of the top plate. A mounting plate is rotatably connected to the top of the turntable. Limiting side plates are fixedly connected to both sides of the top of the mounting plate. Guide plates are fixedly connected to the top of the limiting side plates. The two guide plates are inclined from top to bottom toward each other. A locking bolt is provided on the top of the mounting plate. The turntable and the mounting plate are fixedly connected by the locking bolt.

[0008] Compared with the prior art, the beneficial effects of the present invention are: This device, through the coordination of a lifting assembly and a side protection assembly, utilizes a rotatable side protection assembly whose angle can be finely adjusted before docking, ensuring precise docking between the side protection assembly and the crossbeam frame. This allows the lifting assembly to accurately align with the design position when deployed, and after centering, the side plates clamp and position the two sides of the crossbeam frame to prevent swaying during subsequent pouring or connection operations. Simultaneously, a protective guide assembly protects and constrains the lifting assembly's lifting process, ensuring it can only move in the direction defined by the guide assembly. Furthermore, the combination of a double-headed screw and a scissor lift allows the lifting assembly to achieve a large lifting displacement with a small screw stroke. Finally, the combination of a rectangular reinforcement frame and two triangular reinforcement frames reinforces the crossbeam frame's rigidity, thereby improving its overall bending and torsional resistance. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the side support frame and the protective guide assembly; Figure 3 This is a structural schematic diagram of the beam frame; Figure 4 This is a schematic diagram of the side structure of the beam frame; Figure 5 This is a structural schematic diagram of the lifting assembly and the side protection assembly; Figure 6 This is a structural schematic diagram of the lifting assembly; Figure 7 This is a schematic diagram of the front structure of the lifting assembly; Figure 8 This is a schematic diagram of the internal structure of the protective guide component.

[0010] In the picture: 1. Side support frame; 11. Base plate; 12. Uprights; 13. Reinforcing frame; 2. Beam frame; 21. Crossbar; 22. Rectangular reinforcing frame; 23. Triangular reinforcing frame one; 24. Triangular reinforcing frame two; 3. Protective guide assembly; 31. Outer sleeve; 32. Intermediate sleeve; 33. Inner sleeve; 4. Lifting assembly; 41. Base; 42. Drive motor; 43. Double-ended screw; 44. Lower guide rail; 45. Lower slide table; 46. Scissor lift; 47. Upper slide table; 48. Upper guide rail; 49. Top plate; 5. Side protection components; 51. Turntable; 52. Mounting plate; 53. Limiting side plate; 54. Guide plate; 55. Locking bolts. Detailed Implementation

[0011] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0012] Please see Figure 1 As shown, the present invention provides a technical solution: a precast concrete frame beam structure, including a side support frame 1, a crossbeam frame 2 is provided at the top of the side support frame 1, a lifting assembly 4 is provided at the bottom of the crossbeam frame 2, a protective guide assembly 3 is provided on the outside of the lifting assembly 4, and a side protective assembly 5 is provided at the top of the lifting assembly 4. The side support frame 1 is used to support both sides of the crossbeam frame 2, the side protective assembly 5 is used to support the middle of the crossbeam frame 2 and limit its sides, the lifting assembly 4 is used to adjust the bearing height of the side protective assembly 5, and the protective guide assembly 3 is used to protect the lifting assembly 4 and guide it during its lifting process.

[0013] As a preferred embodiment of the above technical solution, during the installation of the precast concrete frame beam, the side support frame 1 is used to provide foundation support for both ends of the crossbeam frame 2. The support height of the side protection component 5 is adjusted by the lifting component 4, so that the side protection component 5 can provide auxiliary support for the middle part of the crossbeam frame 2. At the same time, the protective guide component 3 is used to improve the stability during the lifting process, thereby reducing the offset and deformation generated during the installation of the frame beam and improving the installation stability and construction convenience of the precast concrete frame beam structure.

[0014] As one implementation method in this embodiment, please refer to Figures 2-8 As shown, the side support frame 1 includes a base plate 11, uprights 12, and reinforcing frames 13. The base plate 11 is used to support and position the side support frame 1 as a whole. The uprights 12 are fixedly connected to the top of the base plate 11. Two sets of uprights 12 are arranged along the length of the base plate 11 and are located on both sides of the base plate 11. The uprights 12 are made of square or round steel pipes to ensure that they have sufficient vertical load-bearing capacity. The reinforcing frames 13 are distributed in a linear array on the outside of the uprights 12. The reinforcing frames 13 are used to reinforce the uprights 12 to improve the overall stability of the support legs. The reinforcing frames 13 are evenly distributed along the height of the uprights 12 and are fixed to the uprights 12 by welding. Multiple uprights 12 and the reinforcing frames 13 on them together form a support leg. The two support legs support the two ends of the crossbeam frame 2, thus forming a gantry support structure.

[0015] The beam frame 2 includes crossbars 21, rectangular reinforcing frames 22, triangular reinforcing frames 23 and 24. Multiple crossbars 21 are arranged parallel to each other and are evenly distributed along the span of the beam frame 2. The number of crossbars 21 is determined by the span and load of the beam frame 2. The rectangular reinforcing frames 22 are arranged in a linear array along the length of the crossbars 21. The rectangular reinforcing frames 22 are used to reinforce the crossbars 21 in rectangular areas to improve the overall stiffness of the beam frame 2. The rectangular reinforcing frames 22 are evenly spaced along the axial direction of the crossbars 21. The spacing is set such that triangular reinforcement frame 1 23 and triangular reinforcement frame 24 are located between adjacent rectangular reinforcement frames 22, and triangular reinforcement frame 1 23 and triangular reinforcement frame 24 are set opposite to each other. Triangular reinforcement frame 1 23 and triangular reinforcement frame 24 are used to triangularly reinforce the intersection area between the crossbars 21, thereby further improving the torsional and bending resistance of the beam frame 2. Triangular reinforcement frame 1 23 and triangular reinforcement frame 24 are set diagonally along the diagonal direction between the crossbars 21, and the two are arranged crosswise to form a cross support structure.

[0016] The protective guide assembly 3 includes an outer sleeve 31, a middle sleeve 32, and an inner sleeve 33. The outer sleeve 31 is disposed on the top of the base plate 11. The outer sleeve 31 is a square cylinder, and its cross-section is adapted to the base 41 of the lifting assembly 4. The outer sleeve 31 is used to constrain the sliding stroke of the middle sleeve 32 and the inner sleeve 33. The middle sleeve 32 is slidably inserted into the inner side of the outer sleeve 31. The cross-section of the middle sleeve 32 is smaller than that of the outer sleeve 31, and it slides up and down along the inner wall of the outer sleeve 31. The middle sleeve 32 is used to control the height between the outer sleeve 31 and the inner sleeve 33. For the transition, the inner sleeve 33 is slidably inserted into the inner side of the middle sleeve 32. The cross-section of the inner sleeve 33 is smaller than that of the middle sleeve 32 and it slides up and down along the inner wall of the middle sleeve 32. The inner sleeve 33 is used to provide an inner layer guide for the lifting process of the lifting assembly 4, and the lifting stroke of the lifting assembly 4 is gradually enlarged through the step-by-step extension and retraction of the three sleeves. The protective guide assembly 3 protects and covers the lifting assembly 4 during the lifting process, and at the same time, the coaxial constraint of the three sleeves ensures that the lifting assembly 4 can only be lifted and lowered along the axial direction of the protective guide assembly 3.

[0017] The lifting assembly 4 includes a base 41, which is located on the top of the base plate 11 and below the middle of the crossbeam frame 2. The base 41 is used to provide an installation base for the operation of the lifting assembly 4. The base 41 is located inside the inner sleeve 33 of the protective guide assembly 3 and its horizontal projected area is adapted to the inner cavity of the inner sleeve 33.

[0018] A drive motor 42 is fixedly connected to one side of the base 41. A double-ended screw 43 is fixedly connected to the output end of the drive motor 42. The double-ended screw 43 passes through the interior of the base 41 and its axis is parallel to the length direction of the base 41. The threads at both ends of the double-ended screw 43 are turned in opposite directions. The double-ended screw 43 is used to synchronously drive two sliding lower platforms 45 to slide towards or away from each other under the drive of the drive motor 42. Lower guide rails 44 are fixedly connected to both sides of the top of the base 41. The lower guide rails 44 are arranged along the length direction of the base 41 and the two lower guide rails 44 are parallel to each other. Two opposing sliding lower platforms 45 are slidably arranged on the top of the lower guide rails 44. The two sliding lower platforms 45 are respectively threaded to the two ends of the double-ended screw 43.

[0019] The top of the two sliding platforms 45 is provided with a scissor lift 46. The scissor lift 46 is composed of multiple sets of intersecting scissor arms, and their intersection points are hinged by pins. The scissor lift 46 is used to amplify and reduce the lifting stroke during the sliding of the two sliding platforms 45 towards or away from each other. The top of the scissor lift 46 is provided with an upper sliding platform 47. The upper guide rail 48 is slidably arranged inside the upper sliding platform 47. The top of the upper guide rail 48 is fixedly connected to a top plate 49. The top of the top plate 49 is equipped with a side protection component 5. The lifting component 4, through the cooperation of the double-headed screw 43 and the scissor lift 46, can obtain a large lifting displacement with a small screw stroke. The double-layer guide of the lower guide rail 44 and the upper guide rail 48 keeps the top plate 49 horizontal during the lifting process.

[0020] The side protection assembly 5 includes a turntable 51, which is fixedly connected to the top of the top plate 49. A mounting plate 52 is rotatably connected to the top of the turntable 51. Limiting side plates 53 are fixedly connected to both sides of the top of the mounting plate 52. Guide plates 54 are fixedly connected to the top of the limiting side plates 53. The two guide plates 54 are inclined from top to bottom towards each other. A locking bolt 55 is provided on the top of the mounting plate 52. The turntable 51 and the mounting plate 52 are fixedly connected by the locking bolt 55. The locking bolt 55 is used to lock the angle of the mounting plate 52 after alignment to prevent it from deflecting in subsequent processes.

[0021] Furthermore, firstly, the side support frame 1 and the crossbeam frame 2 are assembled. Then, the lifting assembly 4 is installed on the top of the base plate 11 and positioned inside the protective guide assembly 3. Then, the drive motor 42 of the lifting assembly 4 is started. The drive motor 42 drives the double-headed screw 43 to rotate. The two ends of the double-headed screw 43 have opposite threads, which drives the two lower sliding platforms 45 to slide towards each other along the lower guide rail 44. The sliding of the two lower sliding platforms 45 towards each other is converted into the upward movement of the upper sliding platform 47 by the scissor movement of the scissor lift 46. The upward movement of the upper sliding platform 47 is transmitted to the top plate 49 through the upper guide rail 48, which drives the side protective assembly 5 to move upward. Before this, the mounting plate on the turntable 51 is rotated according to the position of the crossbeam frame 2. 52. Make the limiting side plate 53 and guide plate 54 on the mounting plate 52 parallel to the crossbeam frame 2, so as to ensure that the subsequent side protection component 5 and the crossbeam frame 2 can be accurately connected. Then, lock the angle of the side protection component 5 by locking bolt 55. Raise the side protection component 5 to the bottom of the crossbeam frame 2 by lifting component 4, so as to support the middle of the crossbeam frame 2. Then, clamp and limit the two sides of the crossbeam frame 2 by the two limiting side plates 53, so as to prevent the crossbeam frame 2 from shaking. During the lifting process of lifting component 4, the protective guide component 3 can protect it, and the lifting component 4 can only move in the direction limited by the protective guide component 3, thus constraining the lifting direction of lifting component 4.

[0022] Working principle: In actual use, the side support frame 1 and the crossbeam frame 2 are first assembled. Then, the lifting assembly 4 is activated to move the side protection assembly 5 upward. Before this, the mounting plate 52 on the turntable 51 is rotated according to the position of the crossbeam frame 2 so that the limiting side plate 53 and the guide plate 54 on the mounting plate 52 are parallel to the crossbeam frame 2, thereby ensuring that the side protection assembly 5 and the crossbeam frame 2 can be accurately connected. Then, the angle of the side protection assembly 5 is locked by the locking bolt 55. The lifting assembly 4 is used to raise the side protection assembly 5 to the bottom of the crossbeam frame 2, thereby supporting the middle of the crossbeam frame 2. Then, the two limiting side plates 53 limit the two sides of the crossbeam frame 2 to prevent the crossbeam frame 2 from shaking. During the lifting process of the lifting assembly 4, the protective guide assembly 3 can protect it. At the same time, the lifting assembly 4 can only move in the direction limited by the protective guide assembly 3, thereby guiding the lifting assembly 4.

[0023] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A precast concrete frame beam structure, comprising a side support frame (1), characterized in that: The side support frame (1) is provided with a crossbeam frame (2) at the top, a lifting component (4) is provided at the bottom of the crossbeam frame (2), a protective guide component (3) is provided on the outside of the lifting component (4), and a side protection component (5) is provided on the top of the lifting component (4). The side support frame (1) is used to support the two sides of the crossbeam frame (2), the side protection component (5) is used to support the middle of the crossbeam frame (2) and limit its sides, the lifting component (4) is used to adjust the bearing height of the side protection component (5), and the protective guide component (3) is used to protect the lifting component (4) and guide it during its lifting process.

2. The precast concrete frame beam structure according to claim 1, characterized in that: The side support frame (1) includes a base plate (11), uprights (12) and a reinforcing frame (13). Uprights (12) are fixedly connected to both sides of the top of the base plate (11). The reinforcing frames (13) are arranged in a linear array along the height direction of the uprights (12). Multiple uprights (12) and the reinforcing frames (13) set on their outer sides together form a support leg.

3. A precast concrete frame beam structure according to claim 2, characterized in that: The beam frame (2) includes a crossbar (21), a rectangular reinforcing frame (22), a triangular reinforcing frame one (23) and a triangular reinforcing frame two (24). The multiple crossbars (21) are arranged parallel to each other along the length direction of the beam frame (2). The multiple rectangular reinforcing frames (22) are arranged in a linear array along the length direction of the crossbars (21). The triangular reinforcing frame one (23) and the triangular reinforcing frame two (24) are respectively arranged between two adjacent rectangular reinforcing frames (22), and the triangular reinforcing frame one (23) and the triangular reinforcing frame two (24) are arranged opposite to each other.

4. A precast concrete frame beam structure according to claim 3, characterized in that: The protective guide assembly (3) includes an outer sleeve (31), a middle sleeve (32) and an inner sleeve (33). The outer sleeve (31) is located on the top of the base plate (11). The middle sleeve (32) is slidably inserted into the inside of the outer sleeve (31). The inner sleeve (33) is slidably inserted into the inside of the middle sleeve (32).

5. A precast concrete frame beam structure according to claim 4, characterized in that: The lifting assembly (4) includes a base (41) which is located on the top of the base plate (11) and is positioned below the middle of the crossbeam frame (2).

6. A precast concrete frame beam structure according to claim 5, characterized in that: A drive motor (42) is fixedly connected to one side of the base (41). A double-ended screw (43) is fixedly connected to the output end of the drive motor (42). The two ends of the double-ended screw (43) have opposite thread directions. Lower guide rails (44) are fixedly connected to both sides of the top of the base (41). Two opposing sliding platforms (45) are slidably arranged on the top of the lower guide rails (44). The two sliding platforms (45) are respectively threaded to the two ends of the double-ended screw (43).

7. A precast concrete frame beam structure according to claim 6, characterized in that: The top of the two sliding platforms (45) is provided with a scissor lift (46), the top of the scissor lift (46) is provided with an upper sliding platform (47), the upper sliding platform (47) is slidably provided with an upper guide rail (48), the top of the upper guide rail (48) is fixedly connected with a top plate (49), and the top of the top plate (49) is equipped with a side protection component (5).

8. A precast concrete frame beam structure according to claim 7, characterized in that: The side protection assembly (5) includes a turntable (51), which is fixedly connected to the top of the top plate (49). The top of the turntable (51) is rotatably connected to a mounting plate (52). Limiting side plates (53) are fixedly connected to both sides of the top of the mounting plate (52). A guide plate (54) is fixedly connected to the top of the limiting side plate (53). The two guide plates (54) are inclined from top to bottom towards each other. A locking bolt (55) is provided on the top of the mounting plate (52). The turntable (51) and the mounting plate (52) are fixedly connected by the locking bolt (55).

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