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Assembly type concrete semi-grouting sleeve connection and construction control method

A technology of semi-grouting sleeve and control method, which is applied in the field of prefabricated concrete semi-grouting sleeve connection and construction control, which can solve the problems of lax quality control of reserved steel bar length and position, improper construction control method, and no basis for grouting control, etc. problem, achieve the effect of intuitive and scientific grouting fullness, improve construction quality, and ensure construction quality

Pending Publication Date: 2019-10-25
甘肃省第八建设集团有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current construction control method of the straight thread connection of the semi-grouting sleeve connection of the prefabricated concrete component is improper, and the grouting control has no basis. Or check the fullness of grouting in the sleeve by visually inspecting the exhaust port. This kind of method has unscientific problems, and there is also the problem of not strictly controlling the length and position of the reserved steel bars.

Method used

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  • Assembly type concrete semi-grouting sleeve connection and construction control method

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Comparison scheme
Effect test

Embodiment 1

[0039] see figure 1 , an assembled concrete semi-grouting sleeve, including a cylinder body 1, the cylinder body 1 includes a threaded end 11 and a grouting end 2, the grouting end 2 is provided with a grouting port 6 and an exhaust port 9, the row The inner wall of the gas port 9 is set in a conical shape, and a cone 7 is slidably arranged in the exhaust port 9 to fit the inner wall, and an air outlet 8 is arranged in the cone 7 along the axial direction of the exhaust port 9, and the cone 7 The length is less than the length of the exhaust port 9, and the small-diameter end face of the cone 7 can be flush with the end face of the exhaust port 9.

[0040] In the present invention, when in use, the threaded end 11 of the cylinder body 1 is screwed with the straight threaded steel bar, the grouting end 2 is set on another ribbed steel bar, and the grouting equipment is used to inject grout into the grouting port 6, and the The gas is discharged through the exhaust port 9. When...

Embodiment 2

[0054] This embodiment is further optimized on the basis of embodiment 1, specifically:

[0055] The upsetting diameter of the steel bar end is increased by 4mm on the basis of the original diameter, and the upsetting length is 10mm.

[0056] Step 2 also includes:

[0057] Step 2-1: Use a ring gauge to check the middle diameter and small diameter of the steel wire head, use a plug gauge to check the middle diameter and small diameter of the inner wire of the semi-grouting sleeve, and check the tightening force of the straight threaded connection of the steel bar. The tightening force can be checked by a torque wrench ;

[0058] Step 2-2: Clean up the semi-grouting sleeve and the grouting port 6 and the exhaust port 9, and check the specification, position and length of the inserted reinforcing bar in the sleeve;

[0059] Step 2-3: Check the airtightness of the grouting end 2 of the half-grouting sleeve, which should meet the requirements of no air leakage and no grout leakag...

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Abstract

The invention relates to the technical field of concrete construction and discloses an assembly type concrete semi-grouting sleeve connection and construction control method. An assembly type concretesemi-grouting sleeve comprises a sleeve body; the sleeve body comprises a threaded end and a grouting end; a grouting port and an exhaust port are formed in the grouting end; the inner wall of the exhaust port is arranged in a tapered manner; a tapered body bonded with the inner wall of the exhaust port is arranged in the exhaust port in a sliding manner; an air outlet is formed in the tapered body in the axial direction of the exhaust port; the length of the tapered body is less than that of the exhaust port; and the minor-diameter end surface of the tapered body can be flush with the end surface of the exhaust port. The purpose that the connection and construction quality of the assembly type concrete semi-grouting sleeve is improved can be achieved.

Description

technical field [0001] The invention relates to the technical field of concrete construction, in particular to an assembled concrete semi-grouting sleeve connection and a construction control method. Background technique [0002] Prefabricated concrete components are concrete structures that are assembled and connected by prefabricated components as the main force-bearing components. Prefabricated reinforced concrete structure is one of the important directions for the development of my country's building structure. It is conducive to the development of my country's building industrialization, improving production efficiency and saving energy, developing green and environmentally friendly buildings, and is conducive to improving and ensuring the quality of construction projects. Compared with the cast-in-place construction method, the prefabricated PC structure is conducive to green construction, because the prefabricated construction can better meet the requirements of gree...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C5/16E04G21/02
CPCE04C5/165E04G21/02
Inventor 李建纲
Owner 甘肃省第八建设集团有限责任公司