Beam-column joint concrete separation device and construction method thereof

Abstract

The invention provides a beam-column joint concrete separation device and a construction method thereof, and belongs to the field of house building engineering construction. Comprising a fixing groove, a center shaft, a first rotating shaft, a second rotating shaft, an outer side rotating shaft and C-shaped clamps. A center shaft, a first rotating shaft, a second rotating shaft and an outer side rotating shaft are fixed to one end of the fixing groove, the fixing groove comprises an outer groove, an inner groove, an outer groove baffle, an inner groove baffle and a hydraulic oil cylinder, the center shaft is coaxial with the first rotating shaft and the second rotating shaft, and the compression round rods retract inwards when meeting main reinforcements and stirrups when rotating along with the rotating shafts; and the C-shaped clamp can fix the positions of the first rotating shaft, the second rotating shaft and the outer side rotating shaft during clamping. The device has the advantages of being fast to assemble and disassemble and firm and reliable to install, the compression round rods on the device can be tightly attached when meeting main reinforcements and stirrups with different diameters so that concrete at the beam-column joint can be effectively intercepted, demolding is completed when the rotating shaft rotates, and the problem of interception of concrete of different grades at the beam-column joint is solved.

Description

Technical Field

[0001] The invention relates to the field of building engineering construction, and in particular to a beam-column node concrete partition device and a construction method thereof. Background Art

[0002] The acceptance of reinforced concrete beam-column joints is relatively concentrated, which is the weak link in the frame structure and the high-incidence area of ​​quality problems. The strength grade of the column concrete at the beam-column joint is usually higher than that of the beam-slab concrete. During construction, the concrete in the core area of ​​the beam-column joint is poured twice, first pouring the column and then pouring the beam. The high and low grade concrete interception at the beam-column joint is a technical problem that has long plagued construction.

[0003] At present, one method on site is to use wire mesh + welded steel bar head for fixing and interception. However, due to the difficulty and long construction time, the wire mesh is difficult to be installed in place, and a large amount of concrete slurry flows into the beam from the gaps on the side and bottom of the beam, and the interception effect is not ideal.

[0004] Another method is to use inflatable bags to intercept. Although air bags are easy to inflate and exhaust and have high interception efficiency, they can only intercept at 90 degrees on site and have a low turnover rate when encountering sharp objects. The effect of a 90-degree straight construction joint is not as good as a 45-degree oblique construction joint.

[0005] In view of the above-mentioned related technologies, in order to ensure the interception effect of concrete of different grades at the beam-column joints, it is necessary to design a concrete separation device for the beam-column joints. The device must ensure that a 45-degree diagonal bracing construction joint can be left to ensure the concrete interception effect, and it must be easy to install and disassemble, saving manpower and material resources. Summary of the invention

[0006] In order to solve the above-mentioned problems, the present invention proposes a beam-column joint concrete separation device and a construction method thereof. The device has the characteristics of quick installation and disassembly, and firm and reliable installation. The compressed round rods on the device can fit tightly against main bars and stirrups of different diameters, thereby achieving effective interception of concrete at the beam-column joint. Demoulding is completed when the shaft rotates, thereby solving the problem of intercepting concrete of different grades at the beam-column joint.

[0007] To achieve the above object, the present invention adopts the following scheme:

[0008] A beam-column node concrete separation device comprises a fixed groove, a central axis, a first rotating shaft, a second rotating shaft, an outer rotating shaft, and a C-shaped clamp; the fixed groove fixes the central axis, the first rotating shaft, the second rotating shaft, and the outer rotating shaft at one end, the fixed groove comprises an outer groove, an inner groove, an outer groove baffle, an inner groove baffle, and a hydraulic cylinder, the central axis is coaxial with the first rotating shaft and the second rotating shaft, the first rotating shaft and the second rotating shaft coaxially rotate relative to each other around the central axis, the first rotating shaft and the second rotating shaft are the same components symmetrically arranged around the central axis, the first rotating shaft and the second rotating shaft both comprise a pushing rod, a rotating plate, a compression round rod, and a compression spring, the outer rotating shaft is provided with a pushing rod, and the compression round rod will shrink when encountering main reinforcement and stirrups when the compression round rod rotates with the rotating shaft, the C-shaped clamp comprises a rotating bolt, an upper clamping groove, and a lower clamping groove, the C-shaped clamp clamps and loosens the main reinforcement by rotating the upper clamping groove and the lower clamping groove, and the C-shaped clamp can fix the positions of the first rotating shaft, the second rotating shaft, and the outer rotating shaft when clamping.

[0009] Preferably, the outer groove and the inner groove can slide relative to each other along the groove;

[0010] Preferably, the inner groove is provided with corresponding grooves according to the position of the push rod, and the grooves slide back and forth to rotate the push rod, thereby realizing the relative rotation of the first rotating shaft, the second rotating shaft, and the outer rotating shaft, and the longitudinal spacing of the grooves is determined according to the center distance of adjacent rotating shafts;

[0011] Preferably, one end of the hydraulic cylinder is fixed to the outer groove baffle, and the other end is fixed to the inner groove baffle, and the hydraulic cylinder provides thrust and pull to achieve back and forth sliding of the inner groove.

[0012] Preferably, the rotating plate is provided with a plurality of compression round rods, and there is no gap between the compression round rods. The combined effect of the compression round rods can achieve flexible avoidance at the positions of the main reinforcement and the stirrups;

[0013] Preferably, the push rod enables the rotating plates on the first rotating shaft and the second rotating shaft to open and close freely from 0 degrees to 180 degrees;

[0014] Preferably, when the first rotating shaft and the second rotating shaft are in a 180-degree state, there is no gap between the compressed round rods of adjacent rotating shafts;

[0015] Preferably, the rotating bolt of the C-shaped clamp is fixedly connected to the upper clamping groove, the lower clamping groove is fixed on the C-shaped clamp, and the clamping groove properties of the upper clamping groove and the lower clamping groove can firmly clamp the main reinforcement;

[0016] Another object of the present invention is to provide a construction method of a beam-column joint concrete partition device, comprising the following steps:

[0017] Step 1: After the beam reinforcement is tied, the upper ends of the central axis, the first rotating axis, the second rotating axis, and the outer rotating axis are installed and fixed on the fixing groove;

[0018] Step 2: The hydraulic cylinder is used to make the angle of the first rotating shaft and the second rotating shaft 0 degrees; the fixed groove, the center axis, the first rotating shaft, the second rotating shaft, and the outer rotating shaft are inserted into the bottom of the beam at a 45-degree angle;

[0019] Step 3: Use the hydraulic cylinder to make the rotating plate angle of the first rotating shaft and the second rotating shaft 180 degrees, and install and tighten the C-type clamp at the intersection of the compressed round rod, the main reinforcement and the stirrup;

[0020] Step 4: Install and reinforce the outer formwork of the beam, pour concrete in the core area of ​​the beam and column, and when the concrete strength reaches the demolding strength required by the specification, loosen the C-type clamp and remove it. Through the action of the hydraulic cylinder on the fixed groove, the rotating plate angle of the first rotating shaft and the second rotating shaft is rotated from 180 degrees to 0 degrees to achieve mechanical rapid demolding.

[0021] The advantages of the present invention are: a beam-column joint concrete separation device and a construction method thereof are proposed in the present invention, the device has the characteristics of rapid installation and disassembly, and firm and reliable installation. The compressed round rods on the device can be tightly fitted with main bars and stirrups of different diameters, thereby realizing effective interception of concrete at the beam-column joint, and demoulding is completed when the shaft rotates, thereby solving the problem of interception of concrete of different grades at the beam-column joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 : Working diagram of concrete partition device when the plate is rotated 180 degrees

[0023] Figure 2 :Working diagram of concrete partition device when the plate is turned to 0 degrees

[0024] Figure 3 : Beam reinforcement diagram

[0025] Figure 4 :Fixed slot installation diagram

[0026] Figure 5 : Large drawing of concrete partition device when the plate is turned to 0 degrees

[0027] Figure 6 : Large drawing of the concrete partition device when the plate is rotated 180 degrees

[0028] Figure 7 : Outer shaft drawing

[0029] Figure 8 : Exploded view of shaft assembly

[0030] Fig. 9 : C-type fixture sample drawing

[0031] Fig.10 : Fixed slot drawing

[0032] Fig.11 :Transfer board drawing

[0033] Fig.12 :Internal diagram of the transfer board

[0034] In the figure: 1. main reinforcement, 2. stirrups, 3. fixing groove, 301. outer groove, 302. inner groove, 303. outer groove baffle, 304. inner groove baffle, 305. hydraulic cylinder, 4. center axis, 5. first rotating shaft, 501. push rod, 502. rotating plate, 503. compression round rod, 504. compression spring, 6. second rotating shaft, 7. outer rotating shaft, 8. C-type clamp, 801. rotating bolt, 802. upper clamping groove, 803. lower clamping groove. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can have a clearer understanding; Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown,

[0036] A beam-column node concrete partition device comprises a fixed groove 3, a central axis 4, a first rotating shaft 5, a second rotating shaft 6, an outer rotating shaft 7, and a C-shaped clamp 8; the fixed groove 3 is fixed at one end with the central axis 4, the first rotating shaft 5, the second rotating shaft 6, and the outer rotating shaft 7; the fixed groove 3 comprises an outer groove 301, an inner groove 302, an outer groove baffle 303, an inner groove baffle 304, and a hydraulic cylinder 305; the central axis 4 is coaxial with the first rotating shaft 5 and the second rotating shaft 6; the first rotating shaft 5 and the second rotating shaft 6 coaxially rotate relative to each other around the central axis 4; the first rotating shaft 5 and the second rotating shaft 6 are symmetrically arranged around the same part of the central axis The first rotating shaft 5 and the second rotating shaft 6 both include a pushing rod 501, a rotating plate 502, a compression round rod 503, and a compression spring 504. The outer rotating shaft 7 is provided with a pushing rod 501. When the compression round rod 503 rotates with the rotating shaft, it will shrink when encountering the main reinforcement 1 and the stirrup 2. The C-type clamp 8 includes a rotating bolt 801, an upper clamping groove 802, and a lower clamping groove 803. The C-type clamp 8 clamps and releases the main reinforcement 1 by rotating the bolt 801 to make the upper clamping groove 802 and the lower clamping groove 803. When the C-type clamp 8 is clamped, it can fix the positions of the first rotating shaft 5, the second rotating shaft 6, and the outer rotating shaft 7.

[0037] The outer groove 301 and the inner groove 302 can slide relatively along the groove;

[0038] The inner groove 302 is provided with corresponding grooves according to the position of the push rod 501. The grooves slide back and forth to rotate the push rod, thereby realizing the relative rotation of the first rotating shaft 5, the second rotating shaft 6, and the outer rotating shaft 7. The longitudinal spacing of the grooves is determined according to the distance between the centers of adjacent rotating shafts.

[0039] One end of the hydraulic cylinder 305 is fixed to the outer groove baffle 303, and the other end is fixed to the inner groove baffle 304. The hydraulic cylinder 305 provides thrust and pull to achieve the back and forth sliding of the inner groove 302.

[0040] The rotating plate 502 is provided with a plurality of compression rods 503, and there is no gap between the compression rods 503. The combination of the compression rods 503 can achieve flexible avoidance at the positions of the main reinforcement 1 and the stirrup 2;

[0041] The push rod 501 enables the rotating plate 502 on the first rotating shaft 5 and the second rotating shaft 6 to open and close freely from 0 degrees to 180 degrees;

[0042] When the first rotating shaft 5 and the second rotating shaft 6 are in a 180-degree state, there is no gap between the compression rods 503 of adjacent rotating shafts;

[0043] The rotating bolt 801 of the C-shaped clamp 8 is fixedly connected to the upper clamping groove 802, and the lower clamping groove 803 is fixed on the C-shaped clamp 8. The clamping groove properties of the upper clamping groove 802 and the lower clamping groove 803 can firmly clamp the main reinforcement;

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the construction method of the above-mentioned beam-column node concrete partition device comprises the following steps:

[0045] Step 1: After the beam reinforcement is tied, the upper ends of the central axis 4, the first rotating axis 5, the second rotating axis 6, and the outer rotating axis 7 are installed and fixed on the fixing groove 3;

[0046] Step 2: The hydraulic cylinder 305 is used to make the rotating plate angle of the first rotating shaft 5 and the second rotating shaft 6 0 degrees; the fixed groove 3, the central axis 4, the first rotating shaft 5, the second rotating shaft 6, and the outer rotating shaft 7 are inserted into the bottom of the beam at a 45-degree angle;

[0047] Step 3: The hydraulic cylinder 305 is used to make the rotating plate angle of the first rotating shaft 5 and the second rotating shaft 6 180 degrees, and the C-type clamp 8 is installed and tightened at the intersection of the compression round rod 503, the main reinforcement 1 and the stirrup 2;

[0048] Step 4: Install and reinforce the outer formwork of the beam, pour concrete in the core area of ​​the beam and column, and when the concrete strength reaches the demolding strength required by the specification, loosen the C-type clamp 8 and remove it. Through the action of the hydraulic cylinder 305 on the fixed groove 3, the rotating plate angle of the first rotating shaft 5 and the second rotating shaft 6 is rotated from 180 degrees to 0 degrees to achieve mechanical rapid demolding.

[0049] The advantages of the present invention are: a beam-column joint concrete separation device and a construction method thereof are proposed in the present invention, the device has the characteristics of rapid installation and disassembly, and firm and reliable installation. The compressed round rods on the device can be tightly fitted with main bars and stirrups of different diameters, thereby realizing effective interception of concrete at the beam-column joint, and demoulding is completed when the shaft rotates, thereby solving the problem of interception of concrete of different grades at the beam-column joint.

Claims

1. A beam-column joint concrete separator, characterized in that: The cam is a hinged structure which is configured to hold the first and second axes of rotation of the actuator handle in place and to provide a locking mechanism for the actuator to move the first and second axes relative to each other.

2. The beam-column joint concrete separation device according to claim 1 is characterized in that: The outer groove (301) and the inner groove (302) can slide relatively along the groove.

3. The beam-column joint concrete separation device according to claim 1, characterized in that: The inner groove (302) is provided with corresponding grooves according to the position of the push rod (501), and the grooves slide back and forth to rotate the push rod, thereby realizing the relative rotation of the first rotating shaft (5), the second rotating shaft (6), and the outer rotating shaft (7), and the longitudinal spacing of the grooves is determined according to the distance between the centers of adjacent rotating shafts.

4. The beam-column joint concrete separator according to claim 1, characterized in that: One end of the hydraulic cylinder (305) is fixed to the outer groove baffle (303), and the other end is fixed to the inner groove baffle (304). The hydraulic cylinder (305) provides thrust and pull to achieve the back and forth sliding of the inner groove (302).

5. The beam-column joint concrete separation device according to claim 1, characterized in that: The rotating plate (502) is provided with a plurality of compression round rods (503), and there is no gap between the compression round rods (503). The combined action of the compression round rods (503) can achieve flexible avoidance at the positions of the main reinforcement (1) and the stirrups (2).

6. The beam-column joint concrete separation device according to claim 1, characterized in that: The push rod (501) enables the rotating plates (502) on the first rotating shaft (5) and the second rotating shaft (6) to open and close freely from 0 degrees to 180 degrees.

7. The beam-column joint concrete separator according to claim 1, characterized in that: When the first rotating shaft (5) and the second rotating shaft (6) are in a 180-degree state, there is no gap between the compressed round rods (503) of adjacent rotating shafts.

8. The beam-column joint concrete separator according to claim 1, characterized in that: The rotating bolt (801) of the C-shaped clamp (8) is fixedly connected to the upper clamping groove (802), and the lower clamping groove (803) is fixed on the C-shaped clamp (8). The clamping groove properties of the upper clamping groove (802) and the lower clamping groove (803) can firmly clamp the main reinforcement.

9. A construction method for a beam-column joint concrete partition device, characterized in that: The concrete partitioning device for beam-column joints according to claim 1 is specifically operated as follows: Step 1: After the beam reinforcement is tied, the upper ends of the central axis, the first rotating axis, the second rotating axis, and the outer rotating axis are installed and fixed on the fixing groove; Step 2: The hydraulic cylinder is used to make the angle of the first rotating shaft and the second rotating shaft 0 degrees; the fixed groove, the center axis, the first rotating shaft, the second rotating shaft, and the outer rotating shaft are inserted into the bottom of the beam at a 45-degree angle; Step 3: Use the hydraulic cylinder to make the rotating plate angle of the first rotating shaft and the second rotating shaft 180 degrees, and install and tighten the C-type clamp at the intersection of the compressed round rod, the main reinforcement and the stirrup; Step 4: Install and reinforce the outer formwork of the beam, pour concrete in the core area of ​​the beam and column, and when the concrete strength reaches the demolding strength required by the specification, loosen the C-type clamp and remove it. Through the action of the hydraulic cylinder on the fixed groove, the rotating plate angle of the first rotating shaft and the second rotating shaft is rotated from 180 degrees to 0 degrees to achieve mechanical rapid demolding.

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