CN112376923A - Method for correcting large-volume concrete precast column and special tool thereof - Google Patents
Method for correcting large-volume concrete precast column and special tool thereof Download PDFInfo
- Publication number
- CN112376923A CN112376923A CN202010614736.3A CN202010614736A CN112376923A CN 112376923 A CN112376923 A CN 112376923A CN 202010614736 A CN202010614736 A CN 202010614736A CN 112376923 A CN112376923 A CN 112376923A
- Authority
- CN
- China
- Prior art keywords
- foundation
- column
- cup
- wire rope
- steel wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000004567 concrete Substances 0.000 title claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 229910052742 iron Inorganic materials 0.000 claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 3
- 239000011178 precast concrete Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
Abstract
The invention provides a method for correcting a large-volume concrete precast column, which comprises the following steps: embedding a plurality of small iron rings around the cup mouth foundation; after the cup rim foundation is manufactured, an iron cushion block is placed at the bottom of the cup rim foundation, so that the top surface elevation of the cup rim foundation is flush with the ink line marking line which is prefabricated on the prefabricated column; winding a steel wire rope on the column bracket; after the prefabricated column is arranged in the cup mouth foundation, the cup mouth ink line is aligned, and two ends of the steel wire rope are respectively connected with the chain block; the chain block is fixed on a small iron ring with the offset direction opposite to that of the prefabricated column; pulling the chain block to straighten the prefabricated column, and finally taking down the steel wire rope and the chain block; the invention also provides a special tool for the correction method of the large-volume concrete precast column, wherein an iron cushion block is arranged on the bottom surface of the cup opening and is raised at the bottom of the cup opening foundation; a small iron ring is embedded around the cup mouth foundation; the steel wire rope is wound on the part above the bracket of the prefabricated column, and two ends of the steel wire rope are respectively provided with a chain block; the chain block is fixedly connected with a small iron ring at the position opposite to the offset direction of the prefabricated column.
Description
Technical Field
The invention relates to the field of building construction, in particular to a large-volume concrete precast column straightening and mounting method and a special tool thereof.
Background
The concrete precast column straightening comprises two contents: plane position correction and perpendicularity correction. During the straightening operation, the plane position of the column is generally corrected first, and after the plane position is corrected completely, the verticality of the column is corrected.
In the prior art, the plane position is corrected by marking the axis of a foundation on a foundation cup mouth by using ink lines, marking the axis of a column body on a prefabricated column, and aligning the axis shot on the foundation cup mouth with the axis of the column body.
In the prior art, two theodolites are adopted for correcting the verticality and are respectively arranged on two sides of the front surface of a column, and the theodolites must be erected on an axial line to ensure that the sight of a telescope is vertical to an observation surface so as to prevent measurement errors caused by the fact that an upper measuring point and a lower measuring point are not on the same vertical surface. In the traditional method, a sledge hammer is used for striking a steel wedge during correction. The side with large deviation is corrected first, and the side with small deviation is corrected later. If the deviation numbers of the two directions are close, the small surface is corrected first, and then the large surface is corrected. After correcting the right direction, slightly tightening the four wedges with two opposite surfaces, and correcting the other direction. This method is feasible for prefabricated columns of relatively low weight, but is very labour-and time-consuming and inefficient if the mass of the prefabricated column is high. A new precast column straightening method is researched according to actual field requirements.
Disclosure of Invention
The present invention is directed to a method suitable for aligning large volume concrete columns. In order to achieve the purpose, the invention provides the following specific technical means:
a method for correcting a large-volume concrete precast column comprises the following steps:
1) when the cup foundation is bound with steel bars, a plurality of small iron rings with the diameter of 18mm are arranged around the cup foundation, and the small iron rings are pre-embedded in concrete when the foundation is poured;
2) after the cup rim foundation is manufactured, an iron cushion block is placed at the bottom of the cup rim foundation, the thickness of the iron cushion block is the difference value between the designed length part of the prefabricated column inserted into the cup rim in the drawing and the actual depth of the cup rim, and the top surface elevation of the cup rim foundation is aligned with the ink line marking line which is manufactured in advance on the prefabricated column;
3) winding a steel wire rope on the column bracket before the prefabricated column is hoisted;
4) after the prefabricated column is arranged in the cup mouth foundation, the cup mouth ink line is aligned, and two ends of the steel wire rope are respectively connected with the chain block;
5) determining the offset direction of the prefabricated column by means of a theodolite, and fixing the chain block to a small iron ring opposite to the offset direction of the prefabricated column;
6) pulling the chain block to straighten the prefabricated column, and finally taking down the steel wire rope and the chain block.
Compared with the traditional method, the precast column straightening method has the following advantages: 1) the steel wire rope replaces the original hammer and a plurality of steel wedges, and the installation is convenient; 2) the mode of prefabricated post location with reverse drawknot slope replaces throwing into the post side of steel wedge at different sides, different points respectively, has saved manpower and material resources greatly, and the alignment is fast. 3) The straightening tools such as the steel wire rope and the chain block can be used in a turnover way.
The invention also provides a special tool for the correction method of the large-volume concrete precast column, which comprises an iron cushion block, at least one steel wire rope, a chain block and a small iron ring fixed on the foundation ground, wherein the iron cushion block is arranged at the bottom of the cup foundation and is higher than the bottom surface of the cup; the small iron ring is pre-buried around the cup opening foundation; the steel wire rope is wound on the part above the bracket of the prefabricated column, and two ends of the steel wire rope are respectively provided with a chain block; the chain block is fixedly connected with a small iron ring at the position opposite to the offset direction of the prefabricated column.
The tool is simple in structure and convenient to operate, an operation platform is not required, correction can be conveniently performed on a plurality of inclined directions of the prefabricated column, and the correction direction can be changed at any time.
Drawings
FIG. 1 is a schematic view of a calibration operation according to the present invention;
fig. 2 is a schematic diagram of the arrangement of the steel cord according to the present invention.
Detailed Description
The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings.
The invention provides a method for correcting a large-volume concrete precast column, which is shown by combining the accompanying drawings 1 and 2:
1) when the cup foundation 1 is bound with and rolled with the steel bars, a plurality of small iron rings 4 with the diameter of 18mm are arranged around the cup foundation, and the small iron rings 4 are pre-embedded in concrete when the foundation is poured.
2) After the cup rim foundation 1 is manufactured, an iron cushion block 3 is placed at the bottom of the cup rim foundation 1, the thickness of the iron cushion block 3 is the difference value between the designed length part of the prefabricated column 2 inserted into the cup rim and the actual depth of the cup rim in a drawing, and the top surface elevation of the cup rim foundation 1 is flush with the ink line marking line which is made on the prefabricated column 2 in advance. The thickness of the iron shim block 3 in the embodiment of the present invention is 100mm x 15 mm. The iron cushion blocks 3 can reduce the friction force between the prefabricated column 2 and the bottom surface of the cup rim foundation 1, and the thickness of the cushion blocks is determined when the cup bottom of the prefabricated column is leveled.
3) And before the prefabricated column 2 is lifted, a steel wire rope 6 with the thickness of 20mm is wound on the bracket of the column.
4) After the prefabricated column 2 is arranged in the cup rim foundation 1, the cup rim ink line is aligned, and two ends of the steel wire rope 6 are respectively connected with the chain block 5.
5) The offset direction of the prefabricated column 2 is determined by means of theodolites and a chain block 5 is fixed to a small iron ring 4 opposite to the offset direction of the column.
6) Pulling the chain block 5 to straighten the prefabricated column 2, and finally taking down the steel wire rope 6 and the chain block 5.
The special tool for the large-volume concrete precast column correcting method comprises an iron cushion block 3, at least one steel wire rope 6, a chain block 5 and a small iron ring 4 fixed on the ground of a foundation, wherein the iron cushion block 3 is arranged at the bottom of a cup rim foundation 1 and is higher than the bottom surface of the cup rim; the small iron ring 4 is pre-embedded around the cup mouth foundation 1; the steel wire rope 6 is wound on the bracket part of the prefabricated column 2, and two ends of the steel wire rope are respectively provided with a chain block 5; the chain block 5 is fixedly connected with the small iron ring 4 at the position opposite to the offset direction of the prefabricated column 2.
Compared with the traditional method, the precast column straightening method has the following advantages: 1) the steel wire rope replaces the original hammer and a plurality of steel wedges, and the installation is convenient; 2) the mode of prefabricated post location with reverse drawknot slope replaces throwing into the post side of steel wedge at different sides, different points respectively, has saved manpower and material resources greatly, and the alignment is fast. 3) The straightening tools such as the steel wire rope and the chain block can be used in a turnover way.
Claims (2)
1. A method for correcting a large-volume concrete precast column comprises the following specific operation steps:
1) when the cup rim foundation (1) is bound and rolled with steel bars, a plurality of small iron rings (4) with the diameter of 18mm are arranged around the cup rim foundation, and the small iron rings (4) are pre-embedded in concrete when the foundation is poured;
2) after the cup rim foundation (1) is manufactured, an iron cushion block (3) is placed at the bottom of the cup rim foundation (1), the thickness of the iron cushion block (3) is the difference value between the designed length part of the prefabricated column (2) inserted into the cup rim and the actual depth of the cup rim in a drawing, and the top surface elevation of the cup rim foundation (1) is aligned with the ink line marking line which is manufactured in advance on the prefabricated column (2);
3) winding a steel wire rope (6) on the column bracket before the prefabricated column (2) is lifted;
4) after the prefabricated column (2) is arranged in the cup rim foundation (1), the cup rim ink line is aligned, and two ends of the steel wire rope (6) are respectively connected with the chain block (5);
5) determining the offset direction of the prefabricated column (2) by means of a theodolite, and fixing a chain block (5) on a small iron ring (4) opposite to the offset direction of the prefabricated column (2);
6) pulling the chain block (5) to straighten the prefabricated column (2), and finally taking down the steel wire rope (6) and the chain block (5).
2. A special tool for a method of calibrating a large volume precast concrete column of claim 1, wherein: the iron cup comprises an iron cushion block (3), at least one steel wire rope (6), a chain block (5) and a small iron ring (4) fixed on the ground of a foundation, wherein the iron cushion block (3) is arranged at the bottom of a cup rim foundation (1) to heighten the bottom surface of the cup rim; the small iron ring (4) is pre-embedded around the cup mouth foundation; the steel wire rope (6) is wound on the upper part of the bracket of the prefabricated column, and two ends of the steel wire rope are respectively provided with a chain block (5); the chain block (5) is fixedly connected with a small iron ring (4) at the position opposite to the offset direction of the prefabricated column (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010614736.3A CN112376923A (en) | 2020-06-30 | 2020-06-30 | Method for correcting large-volume concrete precast column and special tool thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010614736.3A CN112376923A (en) | 2020-06-30 | 2020-06-30 | Method for correcting large-volume concrete precast column and special tool thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112376923A true CN112376923A (en) | 2021-02-19 |
Family
ID=74586378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010614736.3A Pending CN112376923A (en) | 2020-06-30 | 2020-06-30 | Method for correcting large-volume concrete precast column and special tool thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112376923A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395339A (en) * | 2020-03-23 | 2020-07-10 | 中国一冶集团有限公司 | Mounting structure and mounting method for accurately embedding cast-in-situ bored pile casing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041899A (en) * | 2009-10-22 | 2011-05-04 | 中冶天工建设有限公司 | Method for adjusting axis deviation of industrial factory building edge foundation heavy column |
| CN108166749A (en) * | 2017-12-21 | 2018-06-15 | 北京首钢建设集团有限公司 | A kind of construction method of superelevation bare concrete wall steel form |
| CN110817678A (en) * | 2019-10-31 | 2020-02-21 | 中国三冶集团有限公司 | Hoisting method of prefabricated column |
| CN212249279U (en) * | 2020-06-30 | 2020-12-29 | 中国二十二冶集团有限公司 | Special tool for correcting large-volume concrete prefabricated column |
-
2020
- 2020-06-30 CN CN202010614736.3A patent/CN112376923A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041899A (en) * | 2009-10-22 | 2011-05-04 | 中冶天工建设有限公司 | Method for adjusting axis deviation of industrial factory building edge foundation heavy column |
| CN108166749A (en) * | 2017-12-21 | 2018-06-15 | 北京首钢建设集团有限公司 | A kind of construction method of superelevation bare concrete wall steel form |
| CN110817678A (en) * | 2019-10-31 | 2020-02-21 | 中国三冶集团有限公司 | Hoisting method of prefabricated column |
| CN212249279U (en) * | 2020-06-30 | 2020-12-29 | 中国二十二冶集团有限公司 | Special tool for correcting large-volume concrete prefabricated column |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395339A (en) * | 2020-03-23 | 2020-07-10 | 中国一冶集团有限公司 | Mounting structure and mounting method for accurately embedding cast-in-situ bored pile casing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111851565B (en) | Steel structure stand column alignment structure with cup-mouth type foundation and construction method thereof | |
| CN110219326B (en) | Reverse construction method one-column one-pile underwater verticality adjusting construction process | |
| CN112900450A (en) | Rotary drilling and full-rotation combined back-inserting method positioning method for steel pipe structure pile by reverse construction method | |
| CN111962504A (en) | Construction method for covering and digging top-down permanent steel pipe column | |
| CN105863042A (en) | All-steel structure building and construction method thereof | |
| CN111236217A (en) | Pile foundation reinforcement cage elevation and centering positioning device and method | |
| JP2819447B2 (en) | Building settlement settlement method | |
| CN112376923A (en) | Method for correcting large-volume concrete precast column and special tool thereof | |
| CN212249279U (en) | Special tool for correcting large-volume concrete prefabricated column | |
| CN103061454A (en) | Locating method of installing concrete filled steel tubular column in underground deep hole | |
| CN110470133B (en) | Installation method of rotary kiln | |
| CN101684651B (en) | Ultralong and ultradeep prestressed high strength concrete centrifuge tube pile construction method | |
| CN103132494A (en) | Embedded anchor cone accurate positioning method | |
| CN212771968U (en) | Full-prefabricated assembled bridge bearing platform positioning system | |
| CN103276725B (en) | Construction structure and construction method of anchor pile for large-tonnage test pile | |
| CN212742614U (en) | Foundation inner stand column positioning and mounting structure | |
| CN208701748U (en) | It is inverse to make stage integration vertical support system | |
| CN114197894A (en) | Construction method of large concrete funnel | |
| CN211499464U (en) | Steel pipe concrete composite column for high-rise building and reinforcing system thereof | |
| CN108798042B (en) | Steel pipe column integrated construction verticality adjusting method | |
| CN113187154A (en) | Construction and installation method of concrete precast column | |
| CN214942601U (en) | A positioning tool that is arranged in prefabricated construction conversion layer accurate play muscle of shear force wall reinforcing bar | |
| CN209636842U (en) | Tower-crane foundation structure in the engineering of group hole | |
| CN113005910B (en) | Construction method of adjustable cable saddle integral high-precision positioning structure | |
| CN215212446U (en) | Equipment for mounting and correcting prefabricated column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |