CN113073854A - Horizontal bar planting structure and construction method - Google Patents
Horizontal bar planting structure and construction method Download PDFInfo
- Publication number
- CN113073854A CN113073854A CN202110399492.6A CN202110399492A CN113073854A CN 113073854 A CN113073854 A CN 113073854A CN 202110399492 A CN202110399492 A CN 202110399492A CN 113073854 A CN113073854 A CN 113073854A
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- Prior art keywords
- bar
- grouting
- bar planting
- planting
- opening
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- 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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a horizontal embedded steel bar structure and a construction method, comprising an embedded steel bar and a horizontal embedded steel bar pore passage; the part of the bar planting pore canal near the opening end is a horizontal equal straight section with unchanged aperture, and the part near the closing end is a wedge-shaped reaming widening section with gradually increased aperture; the opening end is arranged on the bar planting base structure; the bar planting base structure is provided with a sealing cover with a grouting opening and a grout outlet; the center of the sealing cover of the grouting opening is provided with a planting bar insertion hole; gaps between the implanted steel bars and the implanted steel bar pore canals are filled by the non-shrinkage cement-based grouting material through pressure injection. During construction, a bar-planting pore canal is drilled and the inner surface of the bar-planting pore canal is wetted; then arranging a grouting opening sealing cover and inserting an implanted steel bar; and pressing the non-shrinkage cement-based grouting material from the grouting opening until the grouting material is full, and detaching the grouting opening sealing opening and the redundant slurry after initial setting. The invention has good anchoring performance, durability and operability, and ensures the anchoring performance on the premise of ensuring the grouting compactness.
Description
Technical Field
The invention relates to the technical field of horizontal steel bar planting of buildings, in particular to a horizontal steel bar planting structure and a construction method.
Background
In the prior art, when horizontal bar planting is carried out on a concrete structure, a chemical bar planting mode is mostly adopted for post-reinforcing bar anchoring.
However, when the bar-planting part is exposed to outdoor environment for a long time and repeatedly undergoes the action of the dry-wet alternate environment, and directly bears a large action load, the durability of the chemical bar-planting is slightly poor, and the design service life of the permanent concrete structure is not matched.
Therefore, on the basis of good anchoring performance and durability of the cement-based grouting material, on the premise of ensuring the compactness of the grouting material by a convenient construction operation mode, how to ensure that the implanted steel bar has good anchoring performance and durability becomes a technical problem which needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
In view of the above defects of the prior art, the invention provides a horizontal steel bar planting structure and a construction method, which can ensure that the planted steel bars have good anchoring performance and durability on the basis of good anchoring performance and durability of cement-based grouting material and on the premise of ensuring the compactness of the grouting material through a convenient construction operation mode.
In order to achieve the purpose, the invention discloses a horizontal embedded steel bar structure, which comprises an embedded steel bar and a horizontal embedded steel bar pore passage; the bar planting pore canal is a blind hole and comprises an opening end and a closed end.
The part of the bar-planting pore canal, which is close to the opening end, is a horizontal equal straight section with unchanged aperture, and the part, which is close to the closed part, is a wedge-shaped reaming widening section with gradually increased aperture;
the opening end is arranged on the bar planting base structure; the planting bar base structure is provided with a sealing cover with a grouting opening and a grout outlet;
the center of the sealing cover of the grouting opening is provided with a planting bar insertion hole;
the lateral top of the grouting opening sealing cover is provided with the grouting opening and the grout outlet;
the height of the grouting opening and the height of the grout outlet are both higher than the height of the embedded bar inserting hole;
and the gap between the implanted steel bar and the implanted steel bar hole is filled by pressure injection of the non-shrinkage cement-based grouting material.
Preferably, the bar planting matrix structure is a concrete matrix structure, and a cement-based grouting material leveling cushion layer is arranged on the contact surface of the bar planting matrix structure and the sealing cover of the grouting opening.
More preferably, the thickness of the cement-based grouting material leveling cushion layer is 1-2 cm.
Preferably, the sealing cover of the grouting opening is fixed on the bar planting base structure through a plurality of expansion bolts.
Preferably, the embedded bar insertion holes are radioactive concave notches.
The invention also provides a construction method of the horizontal steel bar planting structure, which comprises the following steps:
step 6, inserting the implanted steel bars from the implanted steel bar insertion holes, and extruding the non-shrinkage cement-based grouting material from the grout outlet;
and 7, after the shrinkage-free cement-based grouting material is initially set, disassembling the sealing cover of the grouting opening, and processing the exposed redundant slurry of the steel bar planting matrix structure to complete the steel bar planting construction.
The invention has the beneficial effects that:
the invention has good anchoring performance, durability and operability, ensures the anchoring performance on the premise of ensuring compact grouting, can ensure that the implanted steel bar has the design service life consistent with the structure of matrix concrete, and can realize the recycling of the sealing cover of the grouting hole.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic structural view showing a sealing cover with a grout inlet at an opening end according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a transverse cross-sectional structure according to an embodiment of the present invention.
Detailed Description
Examples
As shown in fig. 1 and 2, the horizontal bar planting structure comprises a bar planting hole 1 and a horizontal bar planting hole 2; the bar planting hole 2 is a blind hole and comprises an open end and a closed end.
Wherein, the part of the bar planting pore canal 2 close to the opening end is a horizontal equal straight section 3 with unchanged aperture, and the part close to the closing end is a wedge-shaped reaming and widening section 4 with gradually increased aperture;
the open end is arranged on the bar planting matrix structure 5; the bar planting matrix structure 5 is provided with a sealing cover 6 with a grouting opening 8 and a grout outlet 9;
the center of the sealing cover 6 of the grout hole is provided with a planting bar inserting hole 7;
the lateral top of the grout sealing cover 6 is provided with a grout outlet 8 and a grout outlet 9;
the height of the grouting opening 8 and the height of the grout outlet 9 are both higher than that of the embedded bar insertion hole 7;
the gap between the implanted steel bar 1 and the implanted steel bar hole 2 is filled by pressure injection of the non-shrinkage cement-based grouting material.
In practical application, the part of the bar-planted pore canal 2 close to the opening end is set as a horizontal equal straight section 3 with unchanged aperture, and the part close to the sealing is set as a wedge-shaped hole-expanding widening section 4 with gradually enlarged aperture, so that a firm anchoring structure is formed;
the grout hole sealing cover 6 with the grout hole 8, the grout outlet 9 and the embedded steel bar inserting hole 7 can greatly improve the insertion operation of the embedded steel bar 1 and can also realize the convenience of injecting the shrinkage-free cement-based grouting material into the gap between the embedded steel bar 1 and the embedded steel bar hole 2.
In some embodiments, the bar-planting base structure 5 is a concrete base structure, and a cement-based grouting material leveling cushion layer 10 is arranged on the contact surface of the grouting opening sealing cover 6.
In certain embodiments, the cement-based grout leveling blanket 10 has a thickness of 1 to 2 centimeters.
In some embodiments, the grout seal cap 6 is secured to the matrix structure 5 by a plurality of expansion bolts 11.
In some embodiments, the embedded bar insertion holes 7 are radial concave notches.
The embedded steel bar inserting hole 7 with the radioactive inward concave cut is more convenient for the insertion of the embedded steel bar 1 in the later period.
The invention also provides a construction method of the horizontal steel bar planting structure, which comprises the following steps:
step 6, inserting the implanted steel bars 1 from the implanted steel bar insertion holes 7, and extruding the shrinkage-free cement-based grouting material from a grout outlet 9;
and 7, after the shrinkage-free cement-based grouting material is initially set, disassembling the sealing cover 6 of the grouting opening, and processing the exposed redundant slurry of the steel bar planting matrix structure 5 to complete the steel bar planting construction.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. The horizontal bar planting structure comprises a bar planting (1) and a horizontal bar planting hole (2); the bar planting pore canal (2) is a blind hole and comprises an opening end and a closed end; the device is characterized in that the part of the bar-planting pore canal (2) close to the opening end is a horizontal equal straight section (3) with a constant aperture, and the part close to the closed part is a wedge-shaped reaming widening section (4) with gradually-increased aperture;
the opening end is arranged on the bar planting base structure (5); a sealing cover (6) with a grouting opening (8) and a grout outlet (9) is arranged on the planting bar matrix structure (5);
the center of the grouting opening sealing cover (6) is provided with a planting bar insertion hole (7);
the lateral top of the grouting opening sealing cover (6) is provided with the grouting opening (8) and the grout outlet (9);
the height of the grouting opening (8) and the height of the grout outlet (9) are both higher than that of the bar planting insertion hole (7);
gaps between the implanted steel bars (1) and the implanted steel bar pore canals (2) are filled up through pressure injection of shrinkage-free cement-based grouting materials.
2. The horizontal bar planting structure according to claim 1, wherein the bar planting base structure (5) is a concrete base structure, and a cement-based grouting material leveling cushion layer (10) is arranged on the contact surface of the grouting port sealing cover (6).
3. The horizontal bar planting structure according to claim 2, wherein the cement-based grouting material leveling cushion layer (10) has a thickness of 1-2 cm.
4. The horizontal bar planting structure according to claim 1, wherein the grout port sealing cover (6) is fixed to the bar planting base structure (5) by a plurality of expansion bolts (11).
5. The horizontal bar planting structure according to claim 1, wherein the bar planting insertion hole (7) is a radioactive concave cut.
6. The construction method of the horizontal steel bar planting structure according to claim 1 comprises the following steps:
step 1, constructing and drilling a bar planting hole channel (2) comprising the horizontal equal straight section (3) and the wedge-shaped reaming widening section (4) on the bar planting base body structure (5) according to design requirements;
step 2, cleaning and wetting the inner surface of the bar planting pore channel (2);
step 3, fixing the grouting opening sealing cover (6) by adopting an expansion bolt (11);
step 4, pressing the non-shrinkage cement-based grouting material into the grouting opening (8) until the grout outlet (9) continues to discharge grout;
step 5, closing the grouting opening (8);
step 6, inserting the implanted steel bars (1) from the steel bar inserting holes (7), and extruding the non-shrinkage cement-based grouting material from the grout outlet (9);
and 7, after the shrinkage-free cement-based grouting material is initially set, disassembling the sealing cover (6) of the grouting opening, and processing exposed redundant slurry of the steel bar planting matrix structure (5) to complete steel bar planting construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110399492.6A CN113073854A (en) | 2021-04-14 | 2021-04-14 | Horizontal bar planting structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110399492.6A CN113073854A (en) | 2021-04-14 | 2021-04-14 | Horizontal bar planting structure and construction method |
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| Publication Number | Publication Date |
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| CN113073854A true CN113073854A (en) | 2021-07-06 |
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| CN202110399492.6A Pending CN113073854A (en) | 2021-04-14 | 2021-04-14 | Horizontal bar planting structure and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685055A (en) * | 2021-08-26 | 2021-11-23 | 中建八局西南建设工程有限公司 | Horizontal bar planting structure of high-strength cement grouting material and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09328749A (en) * | 1996-06-07 | 1997-12-22 | Sansui Eng Kk | Anchor tendon structure of compression type anchor and load withstand body |
| CN203334690U (en) * | 2013-05-15 | 2013-12-11 | 南京天力信科技实业有限公司 | Weather-proof injection type bar-embedded rubber pipe based on acrylic acid epoxy resin |
| CN108019051A (en) * | 2017-10-18 | 2018-05-11 | 广州市第三建筑工程有限公司 | Reinforced concrete structure deep pore reinforced construction method |
| CN108952200A (en) * | 2018-08-13 | 2018-12-07 | 浙江科技学院 | The construction method that building steel-bar-planting is reinforced under wet environment |
| CN209585686U (en) * | 2019-01-23 | 2019-11-05 | 内蒙古工业大学 | Rebar bonding device is used in a kind of transformation of concrete structure |
| CN111042007A (en) * | 2019-12-10 | 2020-04-21 | 汪又菊 | Planting rib anchoring method |
| CN111622520A (en) * | 2020-05-15 | 2020-09-04 | 中国十七冶集团有限公司 | Device for preventing bar planting glue from leaking |
-
2021
- 2021-04-14 CN CN202110399492.6A patent/CN113073854A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09328749A (en) * | 1996-06-07 | 1997-12-22 | Sansui Eng Kk | Anchor tendon structure of compression type anchor and load withstand body |
| CN203334690U (en) * | 2013-05-15 | 2013-12-11 | 南京天力信科技实业有限公司 | Weather-proof injection type bar-embedded rubber pipe based on acrylic acid epoxy resin |
| CN108019051A (en) * | 2017-10-18 | 2018-05-11 | 广州市第三建筑工程有限公司 | Reinforced concrete structure deep pore reinforced construction method |
| CN108952200A (en) * | 2018-08-13 | 2018-12-07 | 浙江科技学院 | The construction method that building steel-bar-planting is reinforced under wet environment |
| CN209585686U (en) * | 2019-01-23 | 2019-11-05 | 内蒙古工业大学 | Rebar bonding device is used in a kind of transformation of concrete structure |
| CN111042007A (en) * | 2019-12-10 | 2020-04-21 | 汪又菊 | Planting rib anchoring method |
| CN111622520A (en) * | 2020-05-15 | 2020-09-04 | 中国十七冶集团有限公司 | Device for preventing bar planting glue from leaking |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685055A (en) * | 2021-08-26 | 2021-11-23 | 中建八局西南建设工程有限公司 | Horizontal bar planting structure of high-strength cement grouting material and construction method thereof |
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Application publication date: 20210706 |