CN113356478B - Insulation processing structure and processing method suitable for steel bar corner lap joint - Google Patents
Insulation processing structure and processing method suitable for steel bar corner lap joint Download PDFInfo
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- CN113356478B CN113356478B CN202110819051.7A CN202110819051A CN113356478B CN 113356478 B CN113356478 B CN 113356478B CN 202110819051 A CN202110819051 A CN 202110819051A CN 113356478 B CN113356478 B CN 113356478B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/166—Connectors or means for connecting parts for reinforcements the reinforcements running in different directions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses an insulation processing structure suitable for a steel bar corner lap joint, which relates to the technical field of steel bar local corrosion tests and comprises the following components: the heat-shrinkable tube is sleeved at the corner part where the steel bar to be treated and other steel bars are lapped, two opposite notches are respectively formed at two ends of the heat-shrinkable tube, and the heat-shrinkable tube is used for being fixed on the steel bar to be treated in a hot melting mode; the invention also provides an insulation treatment method suitable for the corner lapping part of the steel bar, which comprises the following steps: cutting out a section of heat-shrinkable tube; step two, two opposite notches are formed at two ends of the heat shrinkable tube; sleeving the heat-shrinkable tube with the notch on a corner part where the steel bar to be processed is lapped with other steel bars; step four, heating the heat-shrinkable tube until the heat-shrinkable tube is completely shrunk, and coating the heat-shrinkable tube on the steel bar to be treated; the insulation processing structure and the processing method suitable for the steel bar corner lap joint provided by the invention can enhance the insulation effect, have strong reliability and are convenient to operate.
Description
Technical Field
The invention relates to the technical field of local corrosion tests of steel bars, in particular to an insulation treatment structure and an insulation treatment method suitable for a corner lap joint of a steel bar.
Background
Nowadays, reinforced concrete structures are widely used in civil engineering, however, it is found that concrete structures are deteriorated in structural properties due to external erosion factors under natural environments and use process conditions during long-term use. Among various factors, corrosion of steel reinforcement is one of the main causes of deterioration in the performance of reinforced concrete structures. In actual engineering, the corrosion of the steel bars in the reinforced concrete structure is not uniformly distributed, the corrosion degrees of the steel bars at different parts are different, and the influence on the structural performance is different, so that the research on the local corrosion of the reinforced concrete member is necessary. In the current experimental research, the method of electrifying to accelerate corrosion is generally adopted to accelerate corrosion of the steel bars in the reinforced concrete member. In order to improve the accuracy of the experimental result, the lap joint position of the steel bars needs to be insulated, and the mutual insulation of all the steel bars is ensured. In the past, in order to realize the insulation of reinforcing steel bars, different insulation processing modes such as an insulation buckle, a plastic hose, coating processing on the reinforcing steel bars, winding of an insulation adhesive tape and the like are often adopted, the reliability of the insulation modes cannot be well guaranteed, and the phenomena of falling, breaking, unsatisfactory insulation effect and the like can often occur, so that the test effect is influenced, and when a corner is formed at the lap joint, the plastic hose is not easy to sleeve the corner.
Disclosure of Invention
The invention aims to provide an insulation processing structure and an insulation processing method suitable for a steel bar corner lap joint, which are used for solving the problems in the prior art, enhancing the insulation effect, having strong reliability and being convenient to operate.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an insulation processing structure suitable for a steel bar corner lap joint, which comprises: the heat-shrinkable tube is used for being sleeved at the corner part of the overlap joint of the steel bar to be processed and other steel bars, two oppositely arranged notches are respectively formed in the two ends of the heat-shrinkable tube, and the heat-shrinkable tube is used for being fixed on the steel bar to be processed in a hot melting mode.
Preferably, after the heat shrinkable tube is sleeved on the bent part, the notch is located on one side of the heat shrinkable tube, which is away from the other reinforcing steel bars.
Preferably, the steel bar treatment device further comprises a plurality of insulating ties, and each insulating tie is used for tying the lap joints of the steel bar to be treated and the other steel bars.
Preferably, the inner layer of the heat shrinkable tube is a hot melt adhesive layer.
Preferably, the notch is a triangular notch, and the width of the notch gradually decreases from the end part of the heat shrinkable tube to the middle part of the heat shrinkable tube.
The invention also provides an insulation treatment method suitable for the lap joint of the steel bar corner piece, which comprises the following steps:
cutting out a section of heat-shrinkable tube;
step two, two opposite notches are formed at two ends of the heat-shrinkable tube;
thirdly, sleeving the heat shrinkable tube with the notch on a corner part where the to-be-processed steel bar and other steel bars are lapped;
and step four, heating the heat shrinkable tube until the heat shrinkable tube is completely shrunk, and coating the heat shrinkable tube on the steel bar to be treated.
Preferably, the method further comprises a fifth step of placing other steel bars at the corner lap joint of the steel bars to be processed and fastening the steel bars by using an insulating cable tie.
Preferably, the notch is a triangular notch, and the size of the notch gradually decreases inwards along the end part of the heat-shrinkable tube; when sleeving is carried out in the third step, enabling one side of the heat shrinkable tube with the notch to face the other steel bars and sleeving the heat shrinkable tube into the corner part of the steel bar to be processed; and after the heat shrinkable tube is sleeved, rotating the heat shrinkable tube by 180 degrees around the axis of the heat shrinkable tube, so that one side of the heat shrinkable tube, provided with the notch, deviates from the other steel bars, and then carrying out heating treatment.
Preferably, the heat-shrinkable tube is heated in regions in step four, the heat-shrinkable tube is divided into a plurality of heating regions along the circumferential direction of the heat-shrinkable tube, each heating region extends from one end of the heat-shrinkable tube to the other end along the axial direction, the heating regions on the inner side of the corner of the steel bar to be processed are heated firstly, then the heating regions are heated step by step along the circumferential direction of the heat-shrinkable tube, and the heat-shrinkable tube is heated until the heat-shrinkable tube is completely shrunk and is coated on the steel bar to be processed.
Compared with the prior art, the invention achieves the following technical effects:
the invention provides an insulation processing structure and a processing method suitable for a steel bar corner lap joint, wherein a heat shrinkable tube is used for being sleeved at a corner part where a steel bar to be processed and other steel bars are lapped, two ends of the heat shrinkable tube are respectively provided with a triangular notch, and in the process of sleeving the heat shrinkable tube to the corner part, the notch of the heat shrinkable tube faces towards the inner side of the corner so as to be conveniently sleeved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view illustrating a heat shrinkable tube having a triangular notch formed therein according to an embodiment;
FIG. 2 is a schematic view of the heat shrinkable tube of FIG. 1 initially fitted around the corner of the steel bar to be processed, with the notch facing the inside of the corner;
FIG. 3 is a schematic diagram showing the heat shrinkable tube in FIG. 2 rotated 180 degrees and the triangular notch facing the outside of the corner;
FIG. 4 is a schematic view showing a structure of the heat shrinkable tube of FIG. 3 after heat-shrinking;
FIG. 5 is a schematic structural view of the steel bar to be processed with heat shrinkable tube and the steel bar to be lapped being bundled together in FIG. 4 by using an insulation tie;
in the figure: 1-heat shrinkable tube, 2-steel bar to be treated, 3-other steel bar, 4-insulating band and 11-notch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an insulation processing structure and a processing method suitable for a steel bar corner lap joint, which can be used for solving the problems in the prior art, can be used for enhancing the insulation effect, and are high in reliability and convenient to operate.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
This embodiment provides an insulation processing structure suitable for reinforcing bar bent angle overlap joint, as shown in fig. 1-5, includes: the heat-shrinkable tube 1 is sleeved at a corner part where the steel bar 2 to be treated is lapped with other steel bars 3, and the steel bar can be a threaded steel bar or a smooth steel bar; two opposite notches 11 are respectively formed at two ends of the heat shrink tube 1, and the heat shrink tube 1 is used for being fixed on the steel bar 2 to be processed in a hot melting way; in the process of sleeving the heat shrinkable tube 1 on the bent angle part, the notch 11 of the heat shrinkable tube 1 faces the inner side of the bent angle so as to be sleeved conveniently, in addition, the heat shrinkable tube 1 is used as an insulating sleeve, and the heat shrinkable tube 1 shrinks and tightly coats the bent angle part of the steel bar 2 to be processed when being heated, so that the insulating processing structure and the processing method suitable for the steel bar bent angle lap joint provided by the invention can enhance the insulating effect, have strong reliability and are convenient to operate.
Furthermore, after the heat shrinkable tube 1 is sleeved on the corner, the notch 11 is located on one side of the heat shrinkable tube 1 departing from other steel bars 3, so that the material cost is saved while the heat shrinkable tube is fully insulated.
Further, still include a plurality of insulation ribbon 4, insulation ribbon 4 is preferably ordinary insulation ribbon 4, and each insulation ribbon 4 all is used for tying in the overlap joint of pending reinforcing bar 2 and other reinforcing bar 3, and insulation ribbon 4 plays the effect of two reinforcing bar 2 of awaiting processing and other reinforcing bar 3 relative position of injecing.
Furthermore, the inner layer of the heat shrinkable tube 1 is a hot melt adhesive layer, and the hot melt adhesive layer can be tightly adhered to the steel bar 2 to be treated after being heated.
Furthermore, the notch 11 is a triangular notch 11, the width of the notch 11 gradually decreases from the end of the heat shrinkable tube 1 to the middle of the heat shrinkable tube 1, and the triangular notch 11 is easy to process.
Example two
The embodiment provides an insulation treatment method suitable for a steel bar corner lap joint, which comprises the following steps:
cutting out a section of heat-shrinkable tube 1; selecting a heat-shrinkable tube 1 according to the diameter of the steel bar 2 to be processed, wherein the internal diameter of the heat-shrinkable tube 1 is selected according to the following standard: the inner diameter of the heat-shrinkable tube 1 is larger than the diameter of the steel bar 2 to be processed; the selection standard of the length of the heat shrinkable tube 1 is as follows: after the heat-shrinkable tube is sleeved at the corner part, the heat-shrinkable tube can completely separate the steel bar 2 to be processed from other steel bars;
step two, two opposite notches 11 are manufactured at two ends of the heat shrinkable tube 1; manufacturing a notch 11 according to the diameter of the steel bar 2 to be processed and the angle of a corner;
step three, sleeving the heat-shrinkable tube 1 with the notch 11 on the corner part of the lap joint of the steel bar 2 to be processed and other steel bars 3;
step four, heating the heat shrinkable tube 1 until the heat shrinkable tube 1 is completely shrunk, and coating the heat shrinkable tube on the steel bar 2 to be processed;
placing other steel bars 3 at the corner lap joint of the steel bar 2 to be processed, and fastening the steel bars by using an insulating binding belt 4;
the gap 11 is a triangular gap, and the size of the gap 11 gradually decreases inwards along the end part of the heat shrinkable tube 1; when sleeving is carried out in the third step, one side of the heat shrinkable tube 1 with the notch 11 faces other reinforcing steel bars 3 and is sleeved into the corner part of the reinforcing steel bar 2 to be treated; after the heat shrinkable tube is sleeved, the heat shrinkable tube 1 is rotated by 180 degrees around the axis of the heat shrinkable tube 1, so that one side of the heat shrinkable tube 1 provided with the notch 11 deviates from other steel bars 3, and then heating treatment is carried out.
In the process of sleeving the heat shrinkable tube 1 to the bent angle part, the notch 11 of the heat shrinkable tube 1 faces the inner side of the bent angle so as to facilitate sleeving, in addition, the heat shrinkable tube 1 is adopted as an insulating sleeve, and the heat shrinkable tube 1 shrinks and tightly coats the bent angle part of the steel bar 2 to be processed when being heated, so that the insulating treatment method suitable for the steel bar bent angle lap joint provided by the embodiment can enhance the insulating effect, has strong reliability and is convenient to operate.
Further, carry out regional heating to pyrocondensation pipe 1 in step four, divide into a plurality of heating regions with pyrocondensation pipe 1 along the circumference of pyrocondensation pipe 1, each heating region all extends to the other end along the axial from the one end of pyrocondensation pipe 1, heat earlier 2 bent angle inboard heating regions of pending reinforcing bar and then heat each heating region step by step along pyrocondensation pipe 1's circumference, the heating shrinks completely until the pyrocondensation pipe, and the cladding is on pending reinforcing bar 2, because of the part that plays insulating effect mainly is the inboard pyrocondensation pipe 1 of pending reinforcing bar 2 bent angle, therefore, carry out heat treatment to pyrocondensation pipe 1 here earlier, guarantee cladding that 2 bent angle inboard pyrocondensation pipe 1 of pending reinforcing bar can be intact again to the pyrocondensation pipe of all the other parts on pending reinforcing bar 2, the insulating effect of this structure has been guaranteed.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. The utility model provides an insulating processing structure suitable for reinforcing bar bent angle overlap joint, its characterized in that: the method comprises the following steps: the heat-shrinkable tube is used for being sleeved at a corner part where the steel bar to be treated is lapped with other steel bars, two opposite notches are formed in two ends of the heat-shrinkable tube respectively, and the heat-shrinkable tube is used for being fixed on the steel bar to be treated in a hot melting mode; after the heat shrinkable tube is sleeved at the bent part, the notch is positioned at one side of the heat shrinkable tube, which is far away from other steel bars;
one side of the heat shrinkable tube with the notch faces other steel bars and is sleeved into the corner part of the steel bar to be processed; and after the heat shrinkable tube is sleeved, rotating the heat shrinkable tube by 180 degrees around the axis of the heat shrinkable tube, so that one side of the heat shrinkable tube, provided with the notch, deviates from other steel bars, and then carrying out heating treatment.
2. The insulation processing structure for the corner angle lap joint of the reinforcing steel bar according to claim 1, wherein: the steel bar treatment device further comprises a plurality of insulating ties, and each insulating tie is used for being tied at the lap joint of the steel bar to be treated and the other steel bars.
3. The insulation processing structure for a reinforcing bar corner lap joint as recited in claim 1, wherein: the inner layer of the heat shrinkable tube is a hot melt adhesive layer.
4. The insulation processing structure for the corner angle lap joint of the reinforcing steel bar according to claim 1, wherein: the width of the notch is gradually reduced along the direction from the end part of the heat shrinkable tube to the middle part of the heat shrinkable tube.
5. The insulation processing structure for the corner angle lap joint of the reinforcing steel bar according to claim 4, wherein: the notch is a triangular notch.
6. An insulation processing method suitable for a steel bar corner lap joint is characterized in that: the method comprises the following steps:
cutting out a section of heat-shrinkable tube;
step two, two opposite notches are formed at two ends of the heat shrinkable tube;
thirdly, sleeving the heat shrinkable tube with the notch on a corner part where the to-be-processed steel bar and other steel bars are in lap joint;
and step four, heating the heat-shrinkable tube until the heat-shrinkable tube is completely shrunk, and coating the heat-shrinkable tube on the steel bar to be treated.
7. The insulation treatment method suitable for the corner angle lap joint of the steel bar according to claim 6, wherein: and step five, placing other steel bars at the corner lap joint of the steel bars to be processed, and fastening the steel bars by using an insulating binding tape.
8. The insulation treatment method suitable for the corner angle lap joint of the steel bar according to claim 6, wherein: the notch is a triangular notch, and the size of the notch gradually becomes smaller inwards along the end part of the heat-shrinkable tube; when sleeving is carried out in the third step, enabling one side of the heat shrinkable tube with the notch to face the other steel bars and sleeving the heat shrinkable tube into the corner part of the steel bar to be processed; and after the heat shrinkable tube is sleeved, rotating the heat shrinkable tube by 180 degrees around the axis of the heat shrinkable tube, so that one side of the heat shrinkable tube, provided with the notch, deviates from the other steel bars, and then carrying out heating treatment.
9. The insulation treatment method suitable for the reinforcing bar corner lap joint according to claim 8, wherein: and heating the heat-shrinkable tube in regions in the fourth step, dividing the heat-shrinkable tube into a plurality of heating regions along the circumferential direction of the heat-shrinkable tube, wherein each heating region extends from one end of the heat-shrinkable tube to the other end along the axial direction, heating the heating region on the inner side of the corner of the steel bar to be processed, then heating each heating region step by step along the circumferential direction of the heat-shrinkable tube, and heating until the heat-shrinkable tube is completely shrunk, and coating the heat-shrinkable tube on the steel bar to be processed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110819051.7A CN113356478B (en) | 2021-07-20 | 2021-07-20 | Insulation processing structure and processing method suitable for steel bar corner lap joint |
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| CN202110819051.7A CN113356478B (en) | 2021-07-20 | 2021-07-20 | Insulation processing structure and processing method suitable for steel bar corner lap joint |
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| CN113356478A CN113356478A (en) | 2021-09-07 |
| CN113356478B true CN113356478B (en) | 2023-03-31 |
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| CN115770843B (en) * | 2022-12-08 | 2023-11-03 | 中铁二十三局集团有限公司 | Non-binding connection method for insulating reinforcement cage |
| CN115853203A (en) * | 2022-12-22 | 2023-03-28 | 福建永福电力设计股份有限公司 | Steel bar insulation binding cross lock catch and use method thereof |
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| CN104712100A (en) * | 2015-02-12 | 2015-06-17 | 中国中元国际工程有限公司 | Construction method for antimagnetic stainless steel bars in antimagnetic area of transformer room |
| CN205101714U (en) * | 2015-10-30 | 2016-03-23 | 成都长江热缩材料有限公司 | Effectively avoid thermal shrinkable sleeve of fold |
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