CN112411952A - Construction method for rust prevention of steel column base by brushing slurry - Google Patents
Construction method for rust prevention of steel column base by brushing slurry Download PDFInfo
- Publication number
- CN112411952A CN112411952A CN202011279399.3A CN202011279399A CN112411952A CN 112411952 A CN112411952 A CN 112411952A CN 202011279399 A CN202011279399 A CN 202011279399A CN 112411952 A CN112411952 A CN 112411952A
- Authority
- CN
- China
- Prior art keywords
- steel column
- brushing
- grouting
- steel
- column
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 63
- 239000010959 steel Substances 0.000 title claims abstract description 63
- 230000001680 brushing effect Effects 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 title claims abstract description 21
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000002002 slurry Substances 0.000 title claims abstract description 8
- 230000002265 prevention Effects 0.000 title description 2
- 239000003973 paint Substances 0.000 claims abstract description 11
- 239000011083 cement mortar Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000011440 grout Substances 0.000 claims abstract description 4
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/06—Implements for applying plaster, insulating material, or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
- E04B1/642—Protecting metallic construction elements against corrosion
Abstract
The invention relates to a construction method for brushing slurry and preventing rust of a steel column base, which comprises the following steps: the method comprises the following steps: after the steel column is installed, vertical and elevation correction is carried out; step two: grouting the steel column after confirming that no error exists; step three: after grouting the steel column, manually brushing the steel column with cement mortar in the same proportion by using a brush, wherein the brushing thickness is 30mm, and the height is from the grouting surface to the paint brushing position; step four: because cement mortar carries out effectual isolation with steel column and air, can prevent that the surface from rustting, directly carry out the manual work with the grout of applying paint with a brush and knock out when treating later stage post package foot. The invention avoids the rusting of the bottom of the steel column due to the fact that paint is not coated, reduces the labor cost for polishing and derusting at the later stage, improves the construction efficiency and enhances the construction benefit.
Description
Technical Field
The invention relates to the technical field of steel structures, in particular to a construction method for brushing slurry and preventing rust of a steel column base.
Background
Along with the increasing concern of people to the building environmental quality problem and the continuous increase of its requirement, many industrial parks factory buildings all select the steel construction as load-bearing structure now, and steel construction factory building demonstrates the trend of replacing traditional factory building gradually, and steel construction industrial factory building is as one of modern industry development's basic building facility, and its demand is constantly refreshing more.
The steel structure foundation is divided into a cup mouth type and an inserted bolt type, and the steel structure foundation is required to be in a design specification GB50017-2017 of a steel structure according to the following requirements: the part of the column base below the ground is wrapped by concrete with lower strength grade (the thickness of the protective layer is not less than 50 mm), and in order to ensure that the surface of the steel column and the concrete form enough wrapping force, the part below +/-0 of the steel base is not painted.
In the actual construction process, because civil engineering and steel construction engineering belong to cross operation, the post package foot often waits to begin the construction before pouring the indoor terrace, and waiting period is longer. The steel structure column base +/-0 part is not painted when leaving a factory, is easy to rust after being exposed in air for a long time, and can influence the bond stress of the steel column and concrete to a great extent if rust removal is not carried out before the column wraps the base.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a construction method for brushing slurry and preventing rust of a steel column base, so that the bottom of a steel column is prevented from rusting because paint is not coated, the labor cost for polishing and removing rust at the later stage is reduced, the construction efficiency is improved, and the construction benefit is enhanced.
In order to solve the technical problem, the invention is realized as follows:
a construction method for brushing slurry and preventing rust of a steel column base is characterized by comprising the following steps:
the method comprises the following steps: after the steel column is installed, vertical and elevation correction is carried out;
firstly, positioning and paying off are carried out on a column foundation cup mouth, and an ink fountain pops out a central line and a column edge control line. Then, using the steel column shoulder beam as a starting point to find out a mark height line of +/-1 m; and meanwhile, leveling by using a level gauge, measuring the elevation of the bottom of the cup opening, placing a base plate and leveling the elevation of the crane beam. Hoisting the steel column after the center line and the elevation are confirmed to be correct;
after the steel column is installed into the cup opening, a jack is used for adjusting, after calibration is completed, a steel wedge is plugged into the edge of the cup opening for fixing, deviation is placed, and a guy rope is pulled to enhance stability;
step two: grouting the steel column after confirming that no error exists;
after the steel column is corrected, pouring by adopting fine aggregate concrete or non-shrinkage micro-expansion grouting material required by the design of a drawing;
step three: after grouting the steel column, manually brushing the steel column with cement mortar in the same proportion by using a brush, wherein the brushing thickness is 30mm, and the height is from the grouting surface to the paint brushing position;
step four: because cement mortar carries out effectual isolation with steel column and air, can prevent that the surface from rustting, directly carry out the manual work with the grout of applying paint with a brush and knock out when treating later stage post package foot.
The invention has the beneficial effects that: compared with the traditional column base, the post base is not treated or painted and rustproof below +/-0, the post construction speed can be effectively improved, meanwhile, the labor cost for polishing and derusting at the later stage and removing or painting is reduced, the construction efficiency is improved, and the construction benefit is enhanced.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic representation of a steel column after grouting.
FIG. 2 is a schematic diagram of the steel column after wrapping the legs.
Detailed Description
As shown in fig. 1 and 2: a construction method for preventing steel column base from rusting by brushing slurry comprises the following steps:
the method comprises the following steps: after the steel column is installed, vertical and elevation correction is carried out;
step two: grouting the steel column after confirming that no error exists;
step three: after grouting the steel column, manually brushing the steel column with cement mortar 3 in the same proportion by using a brush, wherein the brushing thickness is 30mm, and the height is from the grouting surface to the paint brushing position;
step four: because cement mortar carries out effectual isolation with steel column and air, can prevent that the surface from rustting, directly carry out the manual work with the grout of applying paint with a brush and knock out when treating later stage post package foot.
Firstly, positioning and paying off are carried out on a column foundation cup mouth, and an ink fountain pops out a central line and a column edge control line. Then, using the steel column shoulder beam as a starting point to find out a mark height line of +/-1 m; and meanwhile, leveling by using a level gauge, measuring the elevation of the bottom of the cup opening, placing a base plate and leveling the elevation of the crane beam. And hoisting the steel column after the center line and the elevation are confirmed to be correct.
The steel column is adjusted by using a jack after being installed into the cup opening, a steel wedge is inserted into the edge of the cup opening for fixing after the calibration is completed, the deviation is placed, and a guy rope is pulled to enhance the stability.
And after the steel column is corrected, pouring by using fine aggregate concrete or non-shrinkage micro-expansion grouting material 1 required by the design of a drawing. After pouring in the cup opening is finished, brushing cement mortar in pouring on the part, which is not painted, of the steel column below +/-0 by using a brush, wherein the thickness of the part is 30 mm. And taking out the steel wedge after the concrete is initially set.
And (3) before C20 fine stone concrete column 2 is used for covering feet in later civil engineering, roughening the foundation surface of the column, and knocking out cement paste on the surface of the steel column.
The invention avoids the rusting of the part below +/-0 of the bottom of the steel column because the paint is not coated, reduces the labor cost for polishing and derusting in the later period, has obvious antirust effect, creates good economic benefit and improves the engineering benefit.
Claims (1)
1. A construction method for brushing slurry and preventing rust of a steel column base is characterized by comprising the following steps:
the method comprises the following steps: after the steel column is installed, vertical and elevation correction is carried out;
firstly, positioning and paying off are carried out on a column foundation cup mouth, and an ink fountain pops out a central line and a column edge control line. Then, using the steel column shoulder beam as a starting point to find out a mark height line of +/-1 m; and meanwhile, leveling by using a level gauge, measuring the elevation of the bottom of the cup opening, placing a base plate and leveling the elevation of the crane beam. Hoisting the steel column after the center line and the elevation are confirmed to be correct;
after the steel column is installed into the cup opening, a jack is used for adjusting, after calibration is completed, a steel wedge is plugged into the edge of the cup opening for fixing, deviation is placed, and a guy rope is pulled to enhance stability;
step two: grouting the steel column after confirming that no error exists;
after the steel column is corrected, pouring by adopting fine aggregate concrete or non-shrinkage micro-expansion grouting material required by the design of a drawing;
step three: after grouting the steel column, manually brushing the steel column with cement mortar in the same proportion by using a brush, wherein the brushing thickness is 30mm, and the height is from the grouting surface to the paint brushing position;
step four: because cement mortar carries out effectual isolation with steel column and air, can prevent that the surface from rustting, directly carry out the manual work with the grout of applying paint with a brush and knock out when treating later stage post package foot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279399.3A CN112411952A (en) | 2020-11-16 | 2020-11-16 | Construction method for rust prevention of steel column base by brushing slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279399.3A CN112411952A (en) | 2020-11-16 | 2020-11-16 | Construction method for rust prevention of steel column base by brushing slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112411952A true CN112411952A (en) | 2021-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011279399.3A Pending CN112411952A (en) | 2020-11-16 | 2020-11-16 | Construction method for rust prevention of steel column base by brushing slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112411952A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020049478A (en) * | 2000-12-19 | 2002-06-26 | 이한승 | alkali recovering agent having corrosion inhibitor in reinforced concrete structure |
| CN102434003A (en) * | 2011-08-29 | 2012-05-02 | 山东寿光第一建筑有限公司 | Heavy battened steel column construction process |
| CN102718454A (en) * | 2012-07-01 | 2012-10-10 | 江苏建筑职业技术学院 | Exposed reinforcing steel bar rust-proof cement paste in building construction and processing method |
| KR101213063B1 (en) * | 2012-02-09 | 2012-12-18 | (주)신광건설 | Repair method for restoring the deteriorated cross-section of reinforced concrete structures |
| CN106760483A (en) * | 2016-12-12 | 2017-05-31 | 中国水利水电第十四工程局有限公司 | A kind of steel form surface rust prevention method |
-
2020
- 2020-11-16 CN CN202011279399.3A patent/CN112411952A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020049478A (en) * | 2000-12-19 | 2002-06-26 | 이한승 | alkali recovering agent having corrosion inhibitor in reinforced concrete structure |
| CN102434003A (en) * | 2011-08-29 | 2012-05-02 | 山东寿光第一建筑有限公司 | Heavy battened steel column construction process |
| KR101213063B1 (en) * | 2012-02-09 | 2012-12-18 | (주)신광건설 | Repair method for restoring the deteriorated cross-section of reinforced concrete structures |
| CN102718454A (en) * | 2012-07-01 | 2012-10-10 | 江苏建筑职业技术学院 | Exposed reinforcing steel bar rust-proof cement paste in building construction and processing method |
| CN106760483A (en) * | 2016-12-12 | 2017-05-31 | 中国水利水电第十四工程局有限公司 | A kind of steel form surface rust prevention method |
Non-Patent Citations (1)
| Title |
|---|
| 李雯霞等: "混凝土碳化对钢筋的腐蚀及影响因素", 《甘肃科技》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210226 |