A pre-stressed reinforcement construction method and fixing device

Abstract

The present invention discloses a pre-stressed rebar planting construction method and fixing device. The working device is composed of a fixed block, a convex slide, a limit block, a convex slider, a spring slot, a rotating rod, a limit plate, a rotating torsion spring, and a spring clamp. The fixed block can be fixed to the bottom of the beam by the matching arrangement of a connecting plate and a fastening bolt. The position of the spring clamp can be adjusted by the matching arrangement of a convex slide and a convex slider. The spring slot, the rotating rod, and the rotating torsion spring are matched to produce a linkage action, and the reverse force is used to press the inverted steel bar so that the steel bar is pressed against the bottom of the hole. The present invention has the advantages of easy manufacture and installation, arbitrary adjustable fixed position, and convenient use. It solves a major quality problem of the traditional rebar planting process, making the rebar planting process more standardized and standardized. In addition, the present invention also has the advantages of good appearance and can meet the requirements of standardized turnover use. Tests have proved that the present invention has a good promotion significance.

Description

Technical Field

[0001] The invention relates to the technical field of reinforcing bar planting construction, and specifically relates to a pre-stressed reinforcing bar planting construction method and a fixing device. Background Art

[0002] Traditionally, the method of positioning, drilling, hole cleaning, rebar planting and curing is used to add components between existing beams, columns and shear wall components or to connect structural columns, ring beams and tie bars with infill walls. However, in the process of rebar planting, the effect of rebar planting is often very irrational due to the lack of necessary construction methods and special fixing devices, especially between important structures (such as key structural nodes of reinforcement and renovation projects) or special parts, where the control of rebar planting effect is relatively strict.

[0003] Let's take an example to illustrate: During the process of adding reinforcement to the column at the bottom of the beam, for convenience, the operator drilled holes with a diameter of 12mm for the designed column reinforcement at the bottom of the beam, applied a small amount of reinforcement glue, and then hammered the reinforcement into the hole, relying entirely on the friction between the reinforcement and the hole to prevent the reinforcement from slipping off due to its own weight; or the reinforcement with a diameter of 12mm was drilled according to the specification to a diameter of 14mm, and then the reinforcement was planted. However, the reinforcement to be planted at the bottom of the beam could not be fixed to the bottom of the hole by the bonding force of the initial reinforcement glue (uncured), and the operator often used binding wires to bind and fix them in groups of two or four. This fixing method relies on the oblique insertion of the reinforcement to the inner wall of the reinforcement hole without falling off. However, this fixing method will not only squeeze out the reinforcement glue that should be in the hole and affect the reinforcement effect, but also require a special person to straighten the oblique reinforcement outside the reinforcement hole one by one (to facilitate the binding of the reinforcement skeleton) in the later stage, which is very labor-intensive and will waste a lot of manpower. Summary of the invention

[0004] The object of the present invention is to provide a pre-stressed reinforcing bar planting construction method and a fixing device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a pre-stressed reinforcing bar planting construction method, comprising the following steps:

[0006] Step 1: Complete the positioning, drilling and hole cleaning steps according to the conventional rebar planting method;

[0007] Step 2: Pound the rebar embedding glue into the inverted hole at the bottom of the beam, and use the electric hammer impact function to send the rebar to the bottom of the hole;

[0008] Step 3, install the steel bar fixing device at the corresponding position of the bottom of the beam. First, position the fixing device at the bottom of the beam by tightening the bolts, then adjust the sliding device on the convex slide groove to the corresponding position of the rebar, and finally rotate the clamp to clamp the rebar. Use the rotating torsion spring and rotating limit rotating pressure inside the rotating device to press the rebar in reverse to the bottom of the hole for solidification.

[0009] Step 4: After the anchor glue is cured, remove the fixing device and recycle it for the next stage.

[0010] Preferably, the rebar embedding glue is a highly thixotropic rebar embedding glue.

[0011] The cam is provided with a plurality of locking plates at the bottom end of the swing arm, and the locking plates are provided with a plurality of locking plates at the bottom end of the swing arm.

[0012] Preferably, the suspension beam bottom connection assembly includes a connection plate and a fastening bolt, the connection plate is fixedly connected to the fixing block, and the fastening bolt passes through the connection plate and is threadedly connected to the beam bottom.

[0013] Preferably, a rubber gasket is provided between the connecting plate and the bottom of the beam, and the fastening bolt passes through the rubber gasket.

[0014] Preferably, the spring clamp comprises two clamping plates, one end of the two clamping plates are hinged, a clamp torsion spring is provided between the two clamping plates, both ends of the clamp torsion spring are respectively fixedly connected to the two clamping plates, the clamping plate on one side is fixedly connected to the rotating rod, and arc-shaped clamping grooves are symmetrically provided on the two clamping plates.

[0015] Preferably, the connecting plate and the fixing block are integrally formed.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the fixing block can be fixed to the bottom of the beam by the matching arrangement of the connecting plate and the fastening bolt, the position of the spring clamp can be adjusted by the matching arrangement of the convex slide groove and the convex slider, the spring groove, the rotating rod and the rotating torsion spring are linked to produce action, the rotating torsion spring follows the passive tightening to produce a reverse force, and the reverse force is used to press the inverted steel bar to make the steel bar top the bottom of the hole. The present invention has the advantages of easy manufacture and installation, arbitrary adjustment of the fixed position, and convenient use, and solves a major quality problem of the traditional steel bar planting process, making the steel bar planting process more standardized; in addition, the present invention also has the advantages of good appearance and can meet the requirements of standardized turnover use. The experimental use has proved that the present invention has a good promotion significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic cross-sectional structural diagram of the fixing device in the present invention.

[0019] In the figure: 1-fixed block, 2-suspension beam bottom connecting assembly, 21-connecting plate, 22-fastening bolt, 3-beam bottom, 4-convex slide groove, 5-limiting block, 6-convex slider, 7-spring groove, 8-rotating rod, 9-limiting plate, 10-rotating torsion spring, 11-spring clamp, 111-clamp plate, 112-clamp torsion spring, 113-arc clamp groove, 12-rubber gasket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0021] See also Figure 1-2 The present invention provides a technical solution: a pre-stressed reinforcement construction method, comprising the following steps:

[0022] Step 1: Complete the positioning, drilling and hole cleaning steps according to the conventional rebar planting method;

[0023] Step 2: Pound the rebar embedding glue into the inverted hole at the bottom of the beam, and use the electric hammer impact function to send the rebar to the bottom of the hole;

[0024] Step 3, install the steel bar fixing device at the corresponding position of the bottom of the beam. First, position the fixing device at the bottom of the beam by tightening the bolts, then adjust the sliding device on the convex slide groove to the corresponding position of the rebar, and finally rotate the clamp to clamp the rebar. Use the rotating torsion spring and rotating limit rotating pressure inside the rotating device to press the rebar in reverse to the bottom of the hole for solidification.

[0025] Step 4: After the anchor glue is cured, remove the fixing device and recycle it for the next stage.

[0026] Specifically, the rebar anchoring glue uses a high thixotropic rebar anchoring glue.

[0027] A pre-stressed anchor fixing device comprises a fixing block 1, which is fixedly connected to the bottom of the beam 3 through a symmetrical suspension beam bottom connecting assembly 2, a convex slide groove 4 is provided through the fixing block, both ends of the convex slide groove are provided with a limit block 5, a convex slider 6 is slidably installed inside the convex slide groove, the convex slider can slide in the convex slide groove to change its position, the limit block can prevent the convex slider from sliding out of the convex slide groove, one end of the convex slider extends out of the convex slide groove, a spring groove 7 is provided on the end surface of the convex slider extending out of the convex slide groove, and a spring groove 7 is movably installed in the spring groove. There is a rotating rod 8, which can rotate in the spring groove. A limit plate 9 is provided on the side wall of the rotating rod, and the limit plate is fixed on the rotating rod. A rotating torsion spring 10 is provided on the outer sleeve of the rotating rod. One end of the rotating torsion spring is fixedly connected to the bottom of the spring groove, and the other end of the rotating torsion spring is fixedly connected to the limit plate. The elastic force of the rotating torsion spring provides a force for the rotating rod to restore its position after rotation. One end of the rotating rod extends out of the spring groove, and a spring clamp 11 is provided on the end of the rotating rod extending out of the spring groove. The spring clamp can clamp the pre-planted steel bars.

[0028] Specifically, the bottom connection assembly of the suspension beam includes a connecting plate 21 and a fastening bolt 22. The connecting plate is fixedly connected to the fixing block. The fastening bolt passes through the connecting plate and is threadedly connected to the bottom of the beam. The fastening bolt fixes the connecting plate and the fixing block to the bottom of the suspension beam.

[0029] Specifically, a rubber gasket 12 is provided between the connecting plate and the bottom of the beam, and the fastening bolts penetrate the rubber gasket.

[0030] Specifically, the spring clamp includes two clamping plates 111, one end of the two clamping plates is hinged, a clamp torsion spring 112 is arranged between the two clamping plates, the two ends of the clamp torsion spring are respectively fixedly connected to the two clamping plates, the clamping plate on one side is fixedly connected to the rotating rod, and arc-shaped clamping grooves 113 are symmetrically arranged on the two clamping plates. The two clamping plates can be opened along the axis at the hinged joint, and the elastic force of the clamp torsion spring provides a force for the two clamping plates to clamp the pre-embedded steel bars between the two arc-shaped clamping grooves.

[0031] Specifically, the connecting plate and the fixing block are integrally formed.

[0032] Working principle: A pre-stressed reinforcement construction method and fixing device, especially used between some important structures (such as key structural nodes of reinforcement and reconstruction projects) or special parts where the reinforcement effect is strictly required. This fixing device consists of a connecting device for the upper hanging structural member and a lower working device. The upper suspension connection device is positioned at the corresponding position of the structural member to be planted through the combined action of the fastening bolt device and the rubber gasket; the working device is composed of a fixed block, a convex slide, a limit block, a convex slider, a spring slot, a rotating rod, a limit plate, a rotating torsion spring, and a spring clamp. The limit block set at the end of the convex slide prevents the sliding convex slider from falling off, the rotating rod can rotate in the spring slot, the limit plate prevents the rotating rod from escaping from the spring slot, the elastic force of the rotating torsion spring acts on the rotating rod, and the spring clamp is connected to the rotating rod. The spring clamp, the rotating rod and the rotating torsion spring are linked to produce action. The rotating torsion spring follows the passive tightening to produce a reverse force, and the reverse force is used to press the inverted steel bar to make the steel bar top the bottom of the hole, completing a fixation, and the steel bar planting glue is cured. The fixing device is removed and the next section is recycled. The above is a description of the single-group operation state, which can be modularly assembled into a double group or unit for matching use. To ensure the fixing effect, keep the steel bar vertical when the clamp is clamped, and pay attention to minimize the time interval between step 2 and step 3.

[0033] 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 pre-stressed anchor fixing device, characterized in that: The cam is provided with a spring, and the two ends of the cam are provided with a spring, and the two ends of the cam are provided with a spring.

2. A pre-stressed anchor fixing device according to claim 1, characterized in that: The suspension beam bottom connection assembly includes a connection plate and a fastening bolt. The connection plate is fixedly connected to a fixing block, and the fastening bolt passes through the connection plate and is threadedly connected to the beam bottom.

3. A pre-stressed anchor fixing device according to claim 2, characterized in that: A rubber gasket is arranged between the connecting plate and the beam bottom, and the fastening bolt passes through the rubber gasket.

4. A pre-stressed anchor fixing device according to claim 2, characterized in that: The spring clamp includes two clamping plates, one end of the two clamping plates is hinged, a clamp torsion spring is provided between the two clamping plates, both ends of the clamp torsion spring are respectively fixedly connected to the two clamping plates, the clamping plate on one side is fixedly connected to the rotating rod, and arc-shaped clamping grooves are symmetrically provided on the two clamping plates.

5. The pre-stressed anchor fixing device according to claim 2 is characterized in that: The connecting plate and the fixing block are integrally formed.

6. A construction method using the pre-stressed anchor bolt fixing device according to any one of claims 2 to 5, characterized in that: The following steps are involved: Step 1: Complete the positioning, drilling and hole cleaning steps according to the conventional rebar planting method; Step 2: Pound the rebar embedding glue into the inverted hole at the bottom of the beam, and use the electric hammer impact function to send the rebar to the bottom of the hole; Step 3, install the rebar fixing device at the corresponding position of the bottom of the beam, first position the fixing block at the bottom of the beam by tightening the bolts, then adjust the convex slider on the convex slide groove to the corresponding position of the rebar, and finally rotate the spring clamp to clamp the rebar, and the spring clamp, the rotating rod and the rotating torsion spring are linked to produce action, and the rotating torsion spring follows the passive tightening to generate a reverse force, and the reverse force is used to press the inverted rebar so that the rebar is pressed against the bottom of the hole; Step 4: After the anchor glue is cured, remove the fixing device and recycle it for the next stage.

7. The construction method according to claim 6, characterized in that: The rebar-anchoring glue is a high thixotropic rebar-anchoring glue.

Images