CN112576054A - Steel structure bonding reinforcement method - Google Patents
Steel structure bonding reinforcement method Download PDFInfo
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- CN112576054A CN112576054A CN202011028020.1A CN202011028020A CN112576054A CN 112576054 A CN112576054 A CN 112576054A CN 202011028020 A CN202011028020 A CN 202011028020A CN 112576054 A CN112576054 A CN 112576054A
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- steel
- bonding
- steel structure
- stirring
- glue
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- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention relates to the technical field of steel structure reinforcement, and discloses a steel structure bonding reinforcement method, which comprises the following steps: step 1, defining an adhesion range, and cleaning and polishing the surface of a steel structure in the adhesion range; step 2, manufacturing prefabricated steel plates for bonding; step 3, respectively stirring two groups of A, B groups of the steel-sticking glue uniformly, and then introducing the two components into a container according to the weight ratio of 2:1 of A, B for mixing and stirring; step 4, coating the uniformly stirred glue on the surface of the cleaned and polished bonding surface or the bonding surface of the prefabricated steel plate in a scraping manner; step 5, adhering the bonding steel plate in a bonding range, and pressurizing and fixing for a period of time; and 6, unloading the pressurizing and fixing facilities, checking the construction quality and performing surface anticorrosion treatment. The steel structure bonding reinforcement method for the steel structure does not need to be fired, and the steel structure is reinforced by mechanical anchoring and bonding reinforcement, so that the problem of softening and instability of the steel structure member in a stress welding mode is effectively solved.
Description
Technical Field
The invention relates to the technical field of steel structure reinforcement, in particular to a steel structure sticking reinforcement method.
Background
Steel structures are structures composed of steel materials and are one of the main building structure types. The structure mainly comprises steel beams, steel columns, steel trusses and other members made of section steel, steel plates and the like, and rust removing and preventing processes such as silanization, pure manganese phosphating, washing drying, galvanization and the like are adopted. The components or parts are typically joined by welds, bolts or rivets. Because of its light dead weight, and construction is simple and convenient, widely apply to fields such as large-scale factory building, venue, superelevation layer. The steel structure is easy to rust, and generally the steel structure needs to be derusted, galvanized or painted, and needs to be maintained regularly.
When the steel structure is damaged, the problem needs to be solved immediately, and the current steel structure reinforcement technical measures mainly include three types: a cross section reinforcement method, a change calculation diagram and a prestress guy cable method. A cross section reinforcing method is adopted in a relatively common reinforcing method, a welding technology is generally adopted in the conventional cross section reinforcing method, and however, the steel structure is possibly deformed due to high temperature generated in welding, so that the mechanical structure is changed.
The steel structure reinforcement can not carry stress operation, and the welding operation is limited, so the applicant provides a steel structure bonding reinforcement method to fill the gap of the steel structure bonding reinforcement method.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a steel bonding reinforcement method for a steel structure, which has the advantages of convenience and quickness in construction, good bonding effect, no fire, and the like, and solves the problem of deformation of the steel structure caused by welding in the background art.
(II) technical scheme
In order to realize the purposes of convenient construction and good bonding effect, the invention provides the following technical scheme: a steel bonding reinforcement method for a steel structure is provided, wherein the structural steel bonding adhesive is A, B two-component epoxy resin structural adhesive, and the method comprises the following steps:
step 1, defining an adhesion range, and cleaning and polishing the surface of a steel structure in the adhesion range;
step 2, manufacturing prefabricated steel plates for bonding;
step 3, respectively stirring two groups of A, B groups of the steel-sticking glue uniformly, and then introducing the two components into a container according to the weight ratio of 2:1 of A, B for mixing and stirring;
step 4, coating the uniformly stirred glue on the surface of the cleaned and polished bonding surface or the bonding surface of the prefabricated steel plate in a scraping manner;
step 5, adhering the bonding steel plate in a bonding range, and pressurizing and fixing for a period of time;
and 6, unloading the pressurizing and fixing facilities, checking the construction quality and performing surface anticorrosion treatment.
Preferably, the steel structure surface in the bonding range is cleaned and polished, the oil and rust removing agent is firstly used for spraying and dipping the steel structure surface for a period of time, then the surface is wiped clean, and then an angle grinder is used for polishing and roughening the steel structure surface.
Through above-mentioned scheme for steel construction surface impurity in the bonding range is by the clean up, increases roughness simultaneously, is favorable to gluing the better prefabricated steel sheet that bonds of steel cement.
Preferably, the processing size of the prefabricated steel plate is matched with the size of the bonding surface.
Through the scheme, the prefabricated steel plate is more attractive after the bonding surface is bonded.
Preferably, the two components of the steel adhesive A, B are stored respectively, when stirring, if the temperature is lower, the A, B component needs to be heated in warm water of 60 ℃ to reduce the viscosity, A, B components are obtained by containers respectively, firstly 2 parts of the component A are put into a stirring container, then 1 part of the component B is put into the stirring container, and an electric stirrer or a bar is used for stirring at a constant speed until the colors are consistent.
Through the scheme, the two components of the steel adhesive A, B are fully fused and reacted, and the maximum bonding effect is exerted.
Preferably, the glue is scraped to the surface of the cleaned and polished bonding surface or the bonding surface of the prefabricated steel plate, the thickness of the glue layer is about 2 mm, the middle part is thick, the two sides are thin, and the glue is pressed to overflow from the periphery when bonding is carried out.
Through the scheme, air between the steel adhesive and the bonding surface is completely discharged and is in full contact with the bonding surface.
Preferably, the pressurization is fixed for a period of time, which is typically 24 hours at room temperature.
Through the scheme, the steel adhesive is completely cured.
Preferably, the surface anticorrosion treatment method comprises the steps of spraying an epoxy anticorrosion paint on the surface or coating an epoxy resin adhesive on the surface.
Through the scheme, the newly bonded steel plate is subjected to corrosion prevention treatment, and secondary damage caused by corrosion is avoided.
Compared with the prior art, the invention provides a steel structure bonded steel reinforcement method, which has the following beneficial effects:
1. this steel construction glues steel reinforcement method bonds prefabricated steel sheet through gluing the steel glue in needs reinforcement position, need not reform transform original steel construction for it is more convenient to be under construction, can not cause destruction to original steel construction simultaneously.
2. According to the steel-sticking reinforcing method for the steel structure, the two components of the steel-sticking glue A, B are uniformly stirred, so that the A, B two components are fully reacted, the maximum bonding effect is exerted, and the bonding effect is further improved.
3. According to the steel structure bonding reinforcement method, the steel structure is reinforced by relying on mechanical anchoring and bonding reinforcement without firing, so that the problem of softening and instability of the steel structure member in a stress welding mode is effectively avoided.
Detailed Description
All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
A steel sticking reinforcement method for a steel structure comprises the following steps:
step 1, defining a bonding range, and cleaning and polishing the surface of a steel structure in the bonding range.
Step 1, cleaning and polishing the surface of the steel structure within the bonding range, firstly spraying and dipping the surface of the steel structure for a period of time by using an oil and rust removing agent, cleaning the surface, and then polishing and roughening the surface of the steel structure by using an angle grinder, so that impurities on the surface of the steel structure within the bonding range are cleaned up, and meanwhile, the surface roughness is increased, and the better bonding of the steel-bonded prefabricated steel plate is facilitated.
And 2, manufacturing the prefabricated steel plate for bonding.
And 2, the processing size of the prefabricated steel plate is matched with the size of the bonding surface, so that the prefabricated steel plate is more attractive after the bonding surface is bonded.
And 3, respectively stirring two groups of A, B groups of the steel-sticking glue uniformly, and then introducing the two components A, B into a container according to the weight ratio of 2:1 for mixing and stirring.
And 3, respectively storing the two components of the steel adhesive A, B, during stirring, if the temperature is lower, heating the A, B component in warm water at 60 ℃ to reduce the viscosity, respectively obtaining A, B components by using containers, firstly taking 2 parts of the component A into a stirring container, then taking 1 part of the component B into the stirring container, and stirring at constant speed by using an electric stirrer or a bar until the colors are consistent, so that the two components of the steel adhesive A, B are fully subjected to fusion reaction to exert the maximum bonding effect.
And 4, scraping and coating the uniformly stirred glue on the surface of the cleaned and polished bonding surface or the bonding surface of the prefabricated steel plate.
And 4, blade-coating the cleaned and polished bonding surface or the bonding surface of the prefabricated steel plate, wherein the thickness of the glue layer is about 2 mm, the middle part is thick, and the two sides are thin, pressurizing is carried out during bonding to enable the glue to overflow from the periphery, so that air between the steel adhesive and the bonding surface is completely discharged and is in overall contact with the bonding surface.
And 5, attaching the bonding steel plate in the bonding range, and pressurizing and fixing for a period of time.
And 5, pressurizing for a fixed period of time, wherein the pressurizing time is generally 24 hours at normal temperature, so that the steel bonding adhesive is completely cured.
And 6, unloading the pressurizing and fixing facilities, checking the construction quality and performing surface anticorrosion treatment.
And 6, spraying epoxy anticorrosive paint on the surface or smearing epoxy resin glue on the surface of the steel plate to perform anticorrosive treatment on the newly bonded steel plate, so that secondary damage caused by corrosion is avoided.
Claims (7)
1. A steel bonding reinforcement method for a steel structure is provided, wherein the structural steel bonding adhesive is A, B two-component epoxy resin structural adhesive, and the method comprises the following steps:
step 1, defining an adhesion range, and cleaning and polishing the surface of a steel structure in the adhesion range;
step 2, manufacturing prefabricated steel plates for bonding;
step 3, respectively stirring two groups of A, B groups of the steel-sticking glue uniformly, and then introducing the two components into a container according to the weight ratio of 2:1 of A, B for mixing and stirring;
step 4, coating the uniformly stirred glue on the surface of the cleaned and polished bonding surface or the bonding surface of the prefabricated steel plate in a scraping manner;
step 5, adhering the bonding steel plate in a bonding range, and pressurizing and fixing for a period of time;
and 6, unloading the pressurizing and fixing facilities, checking the construction quality and performing surface anticorrosion treatment.
2. The steel sticking reinforcing method for the steel structure according to claim 1, which is characterized in that: cleaning and polishing the surface of the steel structure within the bonding range, firstly spraying and dipping the surface of the steel structure for a period of time by using an oil and rust removing agent, then wiping the surface clean, and then polishing and roughening the surface of the steel structure by using an angle grinder.
3. The steel sticking reinforcing method for the steel structure according to claim 1, which is characterized in that: the processing size of the prefabricated steel plate is matched with the size of the bonding surface.
4. The steel sticking reinforcing method for the steel structure according to claim 1, which is characterized in that: the two components of the steel adhesive A, B are stored respectively, when stirring, if the temperature is lower, the A, B component is required to be heated in warm water of 60 ℃ to reduce the viscosity, A, B components are obtained by containers respectively, firstly 2 parts of the component A are taken and put into a stirring container, then 1 part of the component B is taken and put into the stirring container, and an electric stirrer or a bar material is used for stirring at constant speed until the colors are consistent.
5. The steel sticking reinforcing method for the steel structure according to claim 1, which is characterized in that: the glue layer is coated on the surface of the cleaned and polished bonding surface or the bonding surface of the prefabricated steel plate in a scraping way, the thickness of the glue layer is about 2 mm, the middle part is thick, the two sides are thin, and the glue overflows from the periphery by pressurizing during bonding.
6. The steel sticking reinforcing method for the steel structure according to claim 1, which is characterized in that: the pressurization is fixed for a period of time, typically 24 hours at ambient temperature.
7. The steel sticking reinforcing method for the steel structure according to claim 1, which is characterized in that: the method for performing surface anticorrosion treatment comprises the steps of spraying epoxy anticorrosion paint on the surface or smearing epoxy resin glue on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011028020.1A CN112576054A (en) | 2020-09-26 | 2020-09-26 | Steel structure bonding reinforcement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011028020.1A CN112576054A (en) | 2020-09-26 | 2020-09-26 | Steel structure bonding reinforcement method |
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| CN112576054A true CN112576054A (en) | 2021-03-30 |
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| CN202011028020.1A Pending CN112576054A (en) | 2020-09-26 | 2020-09-26 | Steel structure bonding reinforcement method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839824A (en) * | 2012-09-14 | 2012-12-26 | 河北省建筑科学研究院 | Steel-bonded reinforcement method for steel structure |
| CN103422683A (en) * | 2013-08-13 | 2013-12-04 | 上海其军加固工程有限公司 | Method for reinforcing reinforced concrete structure with prestress binding steel |
| CN106928873A (en) * | 2017-04-25 | 2017-07-07 | 温州鸿越建设工程有限公司 | A kind of concrete component steel-bonded reinforcement construction method |
| DE102017103001A1 (en) * | 2017-02-15 | 2018-08-16 | Endress+Hauser SE+Co. KG | Improved adhesive bond by microstructuring a surface |
-
2020
- 2020-09-26 CN CN202011028020.1A patent/CN112576054A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839824A (en) * | 2012-09-14 | 2012-12-26 | 河北省建筑科学研究院 | Steel-bonded reinforcement method for steel structure |
| CN103422683A (en) * | 2013-08-13 | 2013-12-04 | 上海其军加固工程有限公司 | Method for reinforcing reinforced concrete structure with prestress binding steel |
| DE102017103001A1 (en) * | 2017-02-15 | 2018-08-16 | Endress+Hauser SE+Co. KG | Improved adhesive bond by microstructuring a surface |
| CN106928873A (en) * | 2017-04-25 | 2017-07-07 | 温州鸿越建设工程有限公司 | A kind of concrete component steel-bonded reinforcement construction method |
Non-Patent Citations (1)
| Title |
|---|
| 湖南省土木建筑学会: "《现代建筑施工与项目管理》", 30 June 2007, 吉林科学技术出版社 * |
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