Square column hoop precast beam mounting device for fabricated building and use method of square column hoop precast beam mounting device

Abstract

The invention relates to the technical field of building construction, in particular to a square column hoop precast beam mounting device for a fabricated building and a using method thereof.The square column hoop precast beam mounting device comprises hoops and arc side plates, the hoops are in an arc shape, the number of the hoops is two, and a square column is arranged between the two hoops. A pre-tightening force is applied to the square column hoop through the fastening bolt, the pre-tightening force is transmitted to the arc side plate, supporting force for erecting and installing the precast beam is provided by means of frictional resistance generated between the arc side plate and the square column, the arc side plate convenient to disassemble is matched, a new frame beam column installing and connecting method is adopted, the stability of the erected beam and the shock resistance of the beam column joint are improved, and the construction period is shortened. Meanwhile, the construction time of a frame structure building can be effectively saved through manufacturing of the precast beam, the method replaces a traditional method that a support is erected to cast concrete in place to construct the frame beam, operation is convenient, an installation device can be repeatedly used, cost is saved, and the construction period is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a square column hoop prefabricated beam installation device for assembled buildings and a use method thereof. Background Art

[0002] Reinforced concrete frame structures often use the cast-in-place construction method, which has high construction costs and slow construction speed. With the development of intelligent construction and building industrialization, prefabricated buildings have been more widely used. The installation of prefabricated beams in frame structures is the key to construction control.

[0003] At present, the commonly used methods include setting up brackets for connection, pre-buried steel connections, casing grouting connections, and cast-in-place connections for temporary support nodes of lattice columns, which have the problems of cumbersome installation, long construction period, and high project cost. To this end, the present invention proposes a square column hoop prefabricated beam installation device for assembled buildings and a method for using the same to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a square column hoop prefabricated beam installation device for assembled buildings and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a square column hoop prefabricated beam installation device for assembled buildings, comprising: a hoop and an arc side plate, the hoop is in an arc shape, the hoop is provided with two pieces, a square column is provided between the two hoops, a connecting plate is fixedly installed at the left and right ends of each hoop, and two adjacent connecting plates are connected by fastening bolts;

[0006] There are four arc side panels, which are located between the hoop and the square column. A bearing plate is fixedly installed on the upper end of the arc side panel, and baffles are fixedly installed on the left and right sides of the upper end of the bearing plate. The inner end of each baffle is slidably connected with a push plate.

[0007] Preferably, the outer end of the arc side panel is arc-shaped, and the inner end is flat. The outer ends of the four arc side panels are combined to form a circle, and the arc side panel is located between the hoop and the square column.

[0008] Preferably, a plurality of connection holes are evenly formed on the side wall of the connection plate, and one end of the fastening bolt passes through the connection holes on the two connection plates and is threadedly connected with a nut.

[0009] Preferably, the lower end of the arc side plate is inserted between the clamp and the square column, and the upper end of the bearing plate is flush with the upper end of the square column.

[0010] Preferably, a reinforcing rib is obliquely fixedly installed between the arc side plate and the load-bearing plate, and the reinforcing rib is located at the upper end of the clamp.

[0011] Preferably, a threaded sleeve is fixedly installed in the middle portion of each baffle, the threaded sleeve passes through the side wall of the baffle, and guide holes are opened on the left and right sides of each baffle.

[0012] Preferably, a bearing is fixedly installed at the center of one end of each push plate, a threaded rod is fixedly installed on the inner wall of the bearing, the outer end of the threaded rod passes through a threaded sleeve and a driving block is fixedly installed, the outer wall of the threaded rod and the inner wall of the threaded sleeve are threadedly connected, and guide rods are fixedly installed on the left and right sides of one end of each push plate, and the outer end of the guide rod slides through the guide hole.

[0013] A method for using a square column hoop prefabricated beam installation device for assembled buildings specifically comprises the following steps:

[0014] S1. Prefabricate the frame structure beams according to the frame beam-column building structure construction drawings, cast the frame structure columns on site, and reserve cast-in-place beam-column connecting steel bars at the nodes;

[0015] S2. After the concrete strength of the square column reaches the design requirements, mark the installation line of the hoop on the square column according to the design elevation of the drawing;

[0016] S3. Connect two adjacent clamps by fastening bolts, use a torque wrench to apply pre-tightening force to the fastening bolts, and adjust the installation position of the clamp according to the installation line of the clamp on the square column;

[0017] S4. Insert the lower ends of the four arc side panels into the gap between the clamp and the square column, apply pre-tightening force to the fastening bolts with a torque wrench again, and squeeze the arc side panels tightly onto the square column through the clamp;

[0018] S5. The crane lifts the precast beam and gently drops it on the load-bearing plate. The external wrench and the drive block are connected and drive the threaded rod to rotate, thereby driving the push plate to slide and adjust the beam axis and stabilize the precast beam to prevent the beam from overturning.

[0019] S6. Reserved reinforcement for welded or bolted beams and columns;

[0020] S7, cast in situ micro-expansion joint concrete and maintain;

[0021] S8. After the concrete strength of the node reaches the design requirements, loosen the fastening bolts on the clamps, remove the arc side panels one by one, and complete the cast-in-place concrete connection of the frame structure beam-column node.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] This device uses arc side plates to transform square columns into columns, applies pre-tightening force to the square column clamps by tightening bolts, and the pre-tightening force is transmitted to the arc side plates. The friction resistance generated between the arc side plates and the square columns provides support force for erecting and installing prefabricated beams. With the arc side plates that are easy to disassemble, a new frame beam-column installation and connection method is adopted, which greatly improves the stability of the erected beams and the seismic resistance of the beam-column nodes. At the same time, the manufacture of prefabricated beams can also effectively save the construction time of frame structure buildings. This method replaces the traditional erection of brackets and cast-in-place concrete frame beams. It is easy to operate, the installation device can be reused, saves costs, and shortens the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure in which the clamp of the present invention is installed on the upper end of a square column;

[0026] Figure 3 This is a schematic diagram of the arc side plate of the present invention being fixedly installed on the inner end of the hoop;

[0027] Figure 4 It is a schematic diagram of the expansion of the hoop and the arc side plate of the present invention;

[0028] Figure 5 This is a schematic diagram of the upper end structure of the arc side plate of the present invention;

[0029] Figure 6 It is a schematic diagram of the push plate and the load-bearing plate of the present invention.

[0030] In the figure: 1. square column; 2. mounting groove; 3. clamp; 4. connecting plate; 7. connecting hole; 10. fastening bolt; 14. arc side plate; 15. bearing plate; 16. reinforcing rib; 17. baffle; 18. guide hole; 19. threaded sleeve; 20. push plate; 21. bearing; 22. threaded rod; 23. drive block; 24. guide rod. DETAILED DESCRIPTION

[0031] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 6The present invention provides a technical solution: a prefabricated beam installation device for square column clamps for assembled buildings, comprising: a clamp 3 and an arc side plate 14, the clamp 3 is in an arc shape, the clamp 3 is provided with two pieces, a square column 1 is provided between the two clamps 3, the outer end of the arc side plate 14 is in an arc shape, the inner end is flat, the outer ends of the four arc side plates 14 are combined to form a circle, the arc side plate 14 is located between the clamp 3 and the square column 1, the left and right ends of each clamp 3 are fixedly installed with a connecting plate 4, a plurality of connecting holes 7 are evenly opened on the side wall of the connecting plate 4, and two adjacent connecting plates 4 are connected by fastening screws. The bolts 10 are fixedly connected together, one end of the fastening bolt 10 passes through the connecting holes 7 on the two connecting plates 4 and is threadedly connected with a nut, and the fastening bolt 10 is connected and driven by a torque wrench to tighten the hoop 3, so that the hoop 3 is initially fixed to the outer side of the upper end of the square column 1, and a gap is provided between the hoop 3 and the outer wall of the square column 1 to facilitate the insertion of the arc side plate 14. After the arc side plate 14 is inserted, the fastening bolt 10 is screwed again to tighten the hoop 3, so that the hoop 3 holds the arc side plate 14 tightly to the upper end of the square column 1, thereby fixing the arc side plate 14.

[0033] There are four arc side panels 14, which are located between the hoop 3 and the square column 1. A load-bearing plate 15 is fixedly installed on the upper end of the arc side panel 14. The load-bearing plate 15 and the arc side panel 14 are vertically arranged. A reinforcing rib 16 is obliquely fixedly installed between the arc side panel 14 and the load-bearing plate 15. The reinforcing rib 16 is located at the upper end of the hoop 3, and the reinforcing rib 16 serves to strengthen the load-bearing plate 15. The lower end of the arc side panel 14 is inserted between the hoop 3 and the square column 1. The upper end of the load-bearing plate 15 is flush with the upper end of the square column 1, which is convenient for hanging the precast beam. Baffles 17 are fixedly installed on the left and right sides of the upper end of the load-bearing plate 15. The baffles 17 serve to limit the precast beam. The inner end of each baffle 17 is slidably connected with a push plate 20, and the push plate 20 can drive the position of the precast beam, adjust the beam axis and stabilize the precast beam to prevent the beam from overturning.

[0034] See also Figure 5 and Figure 6In some embodiments, a threaded sleeve 19 is fixedly installed in the middle part of each baffle 17, and the threaded sleeve 19 penetrates the side wall of the baffle 17. Guide holes 18 are opened on the left and right sides of each baffle 17, and the guide holes 18 are located on the left and right sides of the threaded sleeve 19. A bearing 21 is fixedly installed at the center of one end of each push plate 20. The outer wall of the bearing 21 is welded to the side wall of the push plate 20. A threaded rod 22 is fixedly installed on the inner wall of the bearing 21. The threaded rod 22 can be rotated on one side of the push plate 20 through the bearing 21. The outer end of the threaded rod 22 passes through the threaded sleeve 19 and is fixedly installed with a driving block 23. The driving block 23 is in the shape of an equilateral hexagon. The outer wall of the threaded rod 22 is threadedly connected with the inner wall of the threaded sleeve 19. Guide rods 24 are fixedly installed on both sides of one end of each push plate 20. The outer end of the guide rod 24 slides through the guide hole 18. Specifically, the threaded rod 22 is driven to rotate by connecting the external wrench to the driving block 23 and driving the driving block 23 to rotate. When the threaded rod 22 rotates, the push plate 20 can be driven to move.

[0035] When the device is working, the frame structure beams are prefabricated according to the construction drawings of the frame beam-column building structure, the frame structure columns are cast on site, and the beam-column connecting steel bars cast in situ at the nodes are reserved. After the concrete strength of the square column 1 reaches the design requirements, the installation line of the clamp 3 is marked on the square column 1 according to the design elevation of the drawing, and two adjacent clamps 3 are connected by fastening bolts 10. A torque wrench is used to apply pre-tightening force to the fastening bolts 10, and the installation position of the clamp 3 is adjusted according to the installation line of the clamp 3 on the square column 1;

[0036] Insert the lower ends of the four arc side panels 14 into the gap between the hoop 3 and the square column 1, and use the torque wrench to apply pre-tightening force to the fastening bolts 10 again. The arc side panels 14 are tightly squeezed on the square column 1 through the hoop 3. The crane lifts the precast beam and gently drops it on the load-bearing plate 15. The threaded rod 22 is driven to rotate through the external wrench and the driving block 23, thereby driving the push plate 20 to slide and adjust the beam axis and stabilize the precast beam to prevent the beam from overturning. The beams and columns are welded or bolted to reserve steel bars, and micro-expansion node concrete is cast in situ and maintained. After the node concrete strength reaches the design requirements, loosen the fastening bolts 10 on the hoop 3, remove the arc side panels 14 in turn, and complete the cast-in-situ concrete connection of the frame structure beam-column node.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A square column hoop prefabricated beam installation device for assembled buildings, comprising: The hoop (3) and the arc side plate (14) are characterized in that: the hoop (3) is in an arc shape, the hoop (3) is provided with two pieces, a square column (1) is provided between the two hoop (3), a connecting plate (4) is fixedly installed at both ends of each hoop (3), and two adjacent connecting plates (4) are connected by fastening bolts (10); Four arc side plates (14) are provided, and the arc side plates (14) are located between the hoop (3) and the square column (1). A bearing plate (15) is fixedly installed on the upper end of the arc side plate (14), and baffles (17) are fixedly installed on both left and right sides of the upper end of the bearing plate (15), and the inner end of each baffle (17) is slidably connected to a push plate (20).

2. The square column hoop prefabricated beam installation device for assembled buildings according to claim 1, characterized in that: The outer end of the arc side plate (14) is in an arc shape, and the inner end is flat. The outer ends of the four arc side plates (14) are combined to form a circle. The arc side plates (14) are located between the hoop (3) and the square column (1).

3. The square column hoop prefabricated beam installation device for assembled buildings according to claim 1 is characterized in that: A plurality of connection holes (7) are evenly arranged on the side wall of the connection plate (4), and one end of a fastening bolt (10) passes through the connection holes (7) on the two connection plates (4) and is threadedly connected with a nut.

4. The square column hoop prefabricated beam installation device for assembled buildings according to claim 1, characterized in that: The lower end of the arc side plate (14) is inserted between the hoop (3) and the square column (1), and the upper end of the bearing plate (15) is flush with the upper end of the square column (1).

5. The square column hoop prefabricated beam installation device for assembled buildings according to claim 1, characterized in that: A reinforcing rib (16) is fixedly installed between the arc side plate (14) and the bearing plate (15) in an inclined manner, and the reinforcing rib (16) is located at the upper end of the hoop (3).

6. The square column hoop prefabricated beam installation device for assembled buildings according to claim 1, characterized in that: A threaded sleeve (19) is fixedly mounted at the middle portion of each baffle (17), the threaded sleeve (19) passes through the side wall of the baffle (17), and guide holes (18) are provided on the left and right sides of each baffle (17).

7. The square column hoop prefabricated beam installation device for assembled buildings according to claim 1, characterized in that: A bearing (21) is fixedly installed at the center of one end of each push plate (20), a threaded rod (22) is fixedly installed on the inner wall of the bearing (21), the outer end of the threaded rod (22) passes through the threaded sleeve (19) and is fixedly installed with a driving block (23), the outer wall of the threaded rod (22) and the inner wall of the threaded sleeve (19) are threadedly connected, and a guide rod (24) is fixedly installed on the left and right sides of one end of each push plate (20), and the outer end of the guide rod (24) slides through the guide hole (18).

8. A method for using the square column hoop prefabricated beam installation device for assembled buildings as claimed in any one of claims 1 to 7, characterized in that: The specific steps include: S1. Prefabricate the frame structure beams according to the frame beam-column building structure construction drawings, cast the frame structure columns on site, and reserve cast-in-place beam-column connecting steel bars at the nodes; S2. After the concrete strength of the square column (1) reaches the design requirements, the installation line of the hoop (3) is marked on the square column (1) according to the design elevation of the drawing; S3, connecting two adjacent clamps (3) by means of a fastening bolt (10), applying a pre-tightening force to the fastening bolt (10) using a torque wrench, and adjusting the installation position of the clamp (3) according to the installation line of the clamp (3) on the square column (1); S4. Insert the lower ends of the four arc side panels (14) into the gap between the clamp (3) and the square column (1), apply a pre-tightening force to the fastening bolts (10) with a torque wrench again, and squeeze the arc side panels (14) tightly onto the square column (1) through the clamp (3); S5, the crane lifts the precast beam and gently drops it on the bearing plate (15), and drives the threaded rod (22) to rotate through the external wrench and the driving block (23), thereby driving the push plate (20) to slide and adjust the beam axis and stabilize the precast beam to prevent the beam from overturning; S6. Reserved reinforcement for welded or bolted beams and columns; S7, cast in situ micro-expansion joint concrete and maintain; S8. After the concrete strength of the node reaches the design requirement, loosen the fastening bolts (10) on the hoop (3), remove the arc side plates (14) in turn, and complete the cast-in-place concrete connection of the frame structure beam-column node.

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