CN113263294A - Foundation bolt defect processing method - Google Patents
Foundation bolt defect processing method Download PDFInfo
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- CN113263294A CN113263294A CN202110636169.6A CN202110636169A CN113263294A CN 113263294 A CN113263294 A CN 113263294A CN 202110636169 A CN202110636169 A CN 202110636169A CN 113263294 A CN113263294 A CN 113263294A
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- bolt
- sleeve
- anchor
- foundation bolt
- original
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- Mechanical Engineering (AREA)
- Foundations (AREA)
Abstract
The invention discloses a foundation bolt defect processing method, which comprises the following steps: 1) the lower half part of a sleeve with internal threads is spirally sleeved on the original foundation bolt; 2) screwing a threaded column with the same specification as the original anchor bolt into the upper half part of the sleeve; 3) and screwing the original foundation bolt, the sleeve and the threaded column to form the new foundation bolt. The foundation bolt defect processing method can effectively solve the problem that the actual bolt elevation is lower than the designed elevation due to the mistake of a construction technician.
Description
Technical Field
The invention relates to the field of structure specialties in civil engineering, in particular to a foundation bolt defect processing method.
Background
The column-limb interval of the existing coking circulating water pipeline overhead support is 1.5 meters, the total height is 11 meters, pipelines are respectively erected in four layers by DN500, DN600, DN900 and DN1000, a boot beam type column foot is adopted to be connected with a lower pile foundation bearing platform, M36 foundation bolts are pre-embedded in the bearing platform, and due to the fact that construction technicians lose, the elevation of the bolts is 200mm lower than the designed elevation, the upper support cannot be installed.
At present, the foundation bolts are generally processed by two methods, one method is to chisel all the foundation bolts from a bearing platform, pre-embed the bolts again and pour the bearing platform, and because the embedding depth of the M36 bolts reaches 600mm, if all the foundation bolts are chiseled, a large amount of labor and materials are wasted, and the construction period is delayed; the other method is to adopt a bonding welding process to the bolt and lengthen the bolt, and the method is only suitable for the bolt below M20.
Disclosure of Invention
The invention aims to provide a foundation bolt defect processing method which can effectively solve the problem that the actual bolt elevation is lower than the designed elevation due to the mistake of a construction technician.
In order to achieve the above object, the present invention provides an anchor bolt defect processing method, including the steps of:
1) the lower half part of a sleeve with internal threads is spirally sleeved on the original foundation bolt;
2) screwing a threaded column with the same specification as the original anchor bolt into the upper half part of the sleeve;
3) and screwing the original foundation bolt, the sleeve and the threaded column to form the new foundation bolt.
Preferably, prior to step 1), the upper end of the anchor foot bolt is cut by a length such that the outer wire length of the anchor foot bolt is less than the length of the sleeve.
Preferably, the upper end of the anchor stud is cut and then the burr of the cross-section is ground.
Preferably, the original foundation bolt and the original threaded column are made of the same material.
Preferably, the sleeve is made of Q235B.
Preferably, the length L of the sleeve is more than or equal to 100 mm.
Preferably, the outer diameter of the sleeve
Wherein the content of the first and second substances,
f1is the tensile strength of the sleeve material, f2Is the tensile strength of the anchor stud material and threaded post, and d is the diameter of the anchor stud material and threaded post.
Preferably, the outer diameter D of the sleeve is more than or equal to 53 mm.
According to the technical scheme, the foundation bolt defect processing method can effectively solve the problem that the actual bolt elevation is lower than the designed elevation due to the mistake of a construction technician.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a new anchor bolt after treatment using an anchor bolt defect treatment process.
Description of the reference numerals
1 original foot bolt 2 thread column
3 sleeve
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, directional words included in terms such as "upper, lower, left, right, front, rear, inner, and outer" and the like merely represent the directions of the terms in a normal use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.
Referring to fig. 1, a schematic view of a new anchor bolt processed by an anchor bolt defect processing method includes the following steps:
1) the lower half part of a sleeve 3 with internal threads is spirally sleeved on the original foundation bolt 1;
2) screwing a threaded column 2 with the same specification as the original anchor stud 1 into the upper half part of the sleeve 3;
3) and screwing the anchor bolt 1, the sleeve 3 and the threaded column 2 to form a new anchor bolt.
Through the implementation of the technical scheme, the foundation bolt defect processing method can effectively solve the problem that the actual bolt elevation is lower than the designed elevation due to the mistake of a construction technician.
In this embodiment, in order to be able to screw the sleeve 3 to the bottom of the outer wire of the anchor stud 1, increasing the connection stability, it is preferable that the upper end of the anchor stud 1 is cut by a length such that the length of the outer wire of the anchor stud 1 is smaller than the length of the sleeve 3, prior to step 1).
In this embodiment, in order to increase the coupling effect, it is preferable that burrs of the cross section are ground after the upper end of the anchor stud 1 is cut.
In this embodiment, in order to increase the overall strength, it is preferable that the material of the original anchor bolt 1 and the threaded column 2 is the same.
In this embodiment, in order to increase the overall strength, the material of the sleeve 3 is preferably Q235B.
In this embodiment, the length L of the sleeve 3 is preferably 100mm or more for increasing the overall strength.
In this embodiment, in order to increase the coupling strength, it is preferable that the outer diameter of the sleeve 3 is larger
Wherein f is1Is the tensile strength of the material of the sleeve 3, f2Is the tensile strength of the anchor stud 1 material and the threaded stud 2, D is the diameter of the anchor stud 1 material and the threaded stud 2, and D is the outer diameter of the sleeve 3. According to the tensile strength equal-strength principle, the nut of the original anchor bolt 1 is matched with the bolt rod in strength (equal-strength), therefore, the outer diameter D of the steel sleeve 3 is calculated according to the principle that the tensile strength of the steel sleeve in the length direction is greater than or equal to that of the anchor bolt, and the formula is as follows:
[π(D/2)2-π(d/2)2]*f1≥π(d/2)2*f2i.e. by
Taking an M36 anchor bolt as an example, the outer diameter D of the sleeve 3 is more than or equal to 53 mm.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. The foundation bolt defect processing method is characterized by comprising the following steps:
1) the lower half part of a sleeve with internal threads is spirally sleeved on the original foundation bolt;
2) screwing a threaded column with the same specification as the original anchor bolt into the upper half part of the sleeve;
3) and screwing the original foundation bolt, the sleeve and the threaded column to form the new foundation bolt.
2. The method for treating a defect of an anchor bolt according to claim 1, wherein the upper end of the anchor foot bolt is cut to a length such that the length of the outer wire of the anchor foot bolt is less than the length of the sleeve before the step 1).
3. The method of treating a defect in an anchor bolt according to claim 2, wherein burrs are ground on a cross section of the anchor bolt after cutting the upper end of the anchor bolt.
4. The method for treating the defects of the foundation bolt according to claim 1, wherein the original foundation bolt and the threaded column are made of the same material.
5. The method of claim 1, wherein the sleeve is made of Q235B.
6. The method for treating the foundation bolt defects of claim 1, wherein the length L of the sleeve is more than or equal to 100 mm.
7. An anchor bolt defect management method according to any one of claims 1 to 6, wherein the outer diameter of the sleeve is
Wherein the content of the first and second substances,
f1is the tensile strength of the sleeve material, f2Is the tensile strength of the anchor stud material and threaded post, and d is the diameter of the anchor stud material and threaded post.
8. The method for treating the foundation bolt defects of claim 7, wherein the outer diameter D of the sleeve is greater than or equal to 53 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110636169.6A CN113263294A (en) | 2021-06-08 | 2021-06-08 | Foundation bolt defect processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110636169.6A CN113263294A (en) | 2021-06-08 | 2021-06-08 | Foundation bolt defect processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113263294A true CN113263294A (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110636169.6A Pending CN113263294A (en) | 2021-06-08 | 2021-06-08 | Foundation bolt defect processing method |
Country Status (1)
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| CN (1) | CN113263294A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58199938A (en) * | 1982-04-30 | 1983-11-21 | シーメンス、アクチエンゲゼルシヤフト | Apparatus for booming metal base |
| CN101368661A (en) * | 2007-08-16 | 2009-02-18 | 中冶宝钢技术服务有限公司 | Special sleeve for butt joint of macrotype broken stone bolt and butt joint method thereof |
| CN103174166A (en) * | 2013-03-27 | 2013-06-26 | 中国京冶工程技术有限公司 | Recreation facility embedded part integrally arranged in complete-set mode and installation method thereof |
| CN206723723U (en) * | 2017-04-11 | 2017-12-08 | 好米动力设备有限公司 | It is a kind of to determine moment of torsion fixation shield formula foundation bolt |
| CN109372284A (en) * | 2018-11-29 | 2019-02-22 | 广州杰赛科技股份有限公司 | A kind of means to save the situation of broken stone bolt |
-
2021
- 2021-06-08 CN CN202110636169.6A patent/CN113263294A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58199938A (en) * | 1982-04-30 | 1983-11-21 | シーメンス、アクチエンゲゼルシヤフト | Apparatus for booming metal base |
| CN101368661A (en) * | 2007-08-16 | 2009-02-18 | 中冶宝钢技术服务有限公司 | Special sleeve for butt joint of macrotype broken stone bolt and butt joint method thereof |
| CN103174166A (en) * | 2013-03-27 | 2013-06-26 | 中国京冶工程技术有限公司 | Recreation facility embedded part integrally arranged in complete-set mode and installation method thereof |
| CN206723723U (en) * | 2017-04-11 | 2017-12-08 | 好米动力设备有限公司 | It is a kind of to determine moment of torsion fixation shield formula foundation bolt |
| CN109372284A (en) * | 2018-11-29 | 2019-02-22 | 广州杰赛科技股份有限公司 | A kind of means to save the situation of broken stone bolt |
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| PB01 | Publication | ||
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Application publication date: 20210817 |