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A device and construction method for accurately inserting steel bars into plain concrete piles

A plain concrete pile, accurate insertion technology, applied in sheet pile wall, foundation structure engineering, construction and other directions, can solve the problems of inaccurate guarantee, long construction period, bending of steel bars, etc., to achieve the effect of ensuring integrity and reducing resistance

Active Publication Date: 2022-04-22
CHINA NUCLEAR IND 22ND CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, some plain concrete piles have a small amount of steel bars inserted in the design. The existing common insertion method is to insert the steel bars and then mechanically strike and sink. This method cannot accurately ensure that the steel bars are always kept behind the inserted pile. Vertical without bending or breaking
[0003] Although there are currently auxiliary tools for inserting steel bars, for example: CN 204081515 U discloses a special auxiliary device for densely reinforced beam-column concrete construction. This auxiliary device for inserting steel bars still adopts the traditional hammering method, so that During the insertion process, the steel bar is prone to bending or breaking, and its quality cannot be guaranteed;
[0004] Another example: CN17730224A discloses a concrete cast-in-situ pile forming technique for implanting a reinforcing cage, which discloses the method of inserting a reinforcing cage, but what it adopts is drilling first, then hammering and hoisting, and inserting, so that the construction process The process is cumbersome and the construction period is relatively long
[0005] Therefore, it is necessary to design a device for accurately inserting steel bars into plain concrete piles, so as to solve the problem of difficult construction of steel bars inserted into plain concrete

Method used

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  • A device and construction method for accurately inserting steel bars into plain concrete piles
  • A device and construction method for accurately inserting steel bars into plain concrete piles
  • A device and construction method for accurately inserting steel bars into plain concrete piles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as Figure 1-6 , a device for accurately inserting steel bars into plain concrete piles, it includes a steel bar body 1, the end of the steel bar body 1 is connected with a straight thread sleeve 4 through screw fit, the straight thread sleeve 4 and the steel bar body 1 A steel pipe 3 is sheathed on the outside, and the contact position between the top of the steel pipe 3 and the steel bar body 1 is welded and fixed by a cross iron 2. The outer sheath of the steel pipe 3 is provided with a gear 5, and the top of the steel pipe 3 is connected to the pile driver head.

[0044] Further, the gear 5 is simultaneously engaged with the first gear 6 and the second gear 7 for transmission, and the first gear 6 and the second gear 7 are respectively installed on the other two steel pipes 3 to be inserted outside the steel bar body 1, A gear linkage system is formed to drive the steel pipe 3 to rotate together. Through the gear linkage system, the insertion operation of mult...

Embodiment 2

[0052] The construction method using any one of the steel bar insertion devices includes the following steps:

[0053] Step1: Assemble the device, fix the straight thread sleeve 4 on the bottom external thread 102 of the steel bar 101 through threaded connection, and then set the steel pipe 3 on the outside of the straight thread sleeve 4 and the steel bar body 1;

[0054] Step2: Weld and fix the top of the steel pipe 3 with the steel bar body 1 through the cross iron 2, so that the two are fixedly connected and can transmit torque;

[0055] Step3: Set the gear 5 on the top of the steel pipe 3 to ensure that the gear 5 can transmit the torque to the steel body 1;

[0056]Step4: Connect the top of the steel pipe 3 equipped with the gear 5 with the pile driver, and ensure that the torque of the pile driver can be transmitted to the steel pipe 3;

[0057] Step5: Start the pile driver, insert the steel bar body 1 into the plain concrete pile through the rotation and pressing func...

Embodiment 3

[0061] The concrete manufacturing process of described device is:

[0062] 1. Grind the tip 103 at the end of the length steel bar designed on the drawing, and perform threading treatment near the end of the tip 103, thereby forming the external thread 102;

[0063] 2. Set the straight thread sleeve 4 matching the diameter of the steel bar on the end of the external thread 102 of the steel bar;

[0064] 3. Use a cutting machine to make a cross cut on the end of the steel pipe 3. The depth of the cut is 10cm. Place a steel ring in the cut, weld the port to the steel ring, and polish it into a round mouth. The diameter is 1-3mm, and it is polished, and then the processed steel bar is inserted into the steel pipe;

[0065] 4. When the straight thread sleeve passes through the lower half of the steel pipe, weld and fix the steel pipe and the steel bar with cross irons on the upper part;

[0066] 5. Use the gear linkage system to drive the steel pipe to rotate, and the upper part...

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Abstract

The invention discloses a device and a construction method for accurately inserting steel bars into plain concrete piles. The device includes a steel bar body. The outside of the body is covered with a steel pipe, the contact position between the top of the steel pipe and the steel bar body is fixed by cross iron welding, the outside of the steel pipe is covered with gears, and the top of the steel pipe is connected with the pile driver head. This device is used to insert a small amount of steel bars into the pile body before the initial setting of the plain concrete pile, and ensure that the steel bars are vertical and accurately enter the linkage device of the pile body.

Description

technical field [0001] The invention belongs to the field of building construction devices, and in particular relates to a device and a construction method for accurately inserting steel bars into plain concrete piles. Background technique [0002] At present, some plain concrete piles have a small amount of steel bars inserted in the design. The existing common insertion method is to insert the steel bars and then mechanically strike and sink. This method cannot accurately ensure that the steel bars are always kept behind the inserted pile. upright without bending or breaking. [0003] Although there are currently auxiliary tools for inserting steel bars, for example: CN 204081515 U discloses a special auxiliary device for densely reinforced beam-column concrete construction. This auxiliary device for inserting steel bars still adopts the traditional hammering method, so that During the insertion process, the steel bar is prone to bending or breaking, and its quality canno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/34
CPCE02D5/34
Inventor 张飞龙吕琛李平唐满华李晓琳党鹏
Owner CHINA NUCLEAR IND 22ND CONSTR