CN112761351A - Post-cast strip template and construction method for casting post-cast strip - Google Patents
Post-cast strip template and construction method for casting post-cast strip Download PDFInfo
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- CN112761351A CN112761351A CN202110097616.5A CN202110097616A CN112761351A CN 112761351 A CN112761351 A CN 112761351A CN 202110097616 A CN202110097616 A CN 202110097616A CN 112761351 A CN112761351 A CN 112761351A
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- cast strip
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
-
- 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)
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- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a post-cast strip template, comprising: the two support plates are oppositely arranged left and right to form a mounting cavity, a groove with an upward opening is formed in each support plate, and the groove is communicated with the mounting cavity; the water stop steel plate transversely penetrates through the mounting cavity through the groove and is abutted against the supporting plate, and the mounting cavity is divided into an upper layer of pouring position and a lower layer of pouring position by the water stop steel plate; the bracing piece, it is a plurality of the bracing piece interval is arranged to the telescopic runs through on the stagnant water steel sheet, makes the upper portion of bracing piece be located the position of pouring on upper strata, and the lower part of bracing piece is located the position of pouring on lower floor. The invention avoids the problems of concrete leakage, infirm template reinforcement and unclean demolition.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a post-cast strip template.
Background
The post-cast strip is a concrete strip reserved at the corresponding position of a foundation slab, a wall and a beam according to the design or construction specification requirement in order to prevent harmful cracks possibly generated by uneven self shrinkage or uneven settlement of a cast-in-place reinforced concrete structure in the building construction. The post-cast strip temporarily divides the structure into a plurality of parts, the construction joint concrete is cast and tamped after a plurality of time after the internal contraction of the member, and the structure is connected into an integral zone. When the temperature is lower, the casting time of the post-cast strip is preferably selected, the casting cement or the concrete mixed with trace aluminum powder in the cement can be used, the strength grade of the casting cement or the concrete mixed with trace aluminum powder in the cement is higher than that of the member by one grade, and cracks between the new concrete and the old concrete are prevented from forming weak parts.
The post-cast strip is long in retention time and needs to be chiseled before the post-cast strip is poured, so that a large amount of sediments and accumulated water exist in the post-cast strip. Although a part of the sediment can be removed by manual work, a small part of sediment is still positioned in the post-cast strip, so that the upper surface of the template cannot be positioned on the same horizontal plane, the template is not firmly reinforced, and the pouring quality of the post-cast strip is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a post-cast strip template and a construction method for casting a post-cast strip, and solves the problem that the casting quality of the post-cast strip is influenced due to the fact that the template is not firmly reinforced in the prior art.
The invention provides a post-cast strip template, which comprises:
the two support plates are oppositely arranged left and right to form a mounting cavity, a groove with an upward opening is formed in each support plate, and the groove is communicated with the mounting cavity;
the water stop steel plate transversely penetrates through the mounting cavity through the groove and is abutted against the supporting plate, and the mounting cavity is divided into an upper layer of pouring position and a lower layer of pouring position by the water stop steel plate;
the bracing piece, it is a plurality of the bracing piece interval is arranged to the telescopic runs through on the stagnant water steel sheet, makes the upper portion of bracing piece be located the position of pouring on upper strata, and the lower part of bracing piece is located the position of pouring on lower floor.
On the other hand, the invention also provides a construction method for pouring the post-cast strip by using the post-cast strip template, which comprises the following steps:
s1, arranging a 500 mm-500 mm water collection pit beside the post-pouring belt;
s2, connecting the post-pouring belt and the water collection pit through a PVC sleeve with the diameter of 200 mm;
s3, pouring a belt after the high-pressure water gun washes the slurry to flow into the water collecting pit through the PVC sleeve;
s4, prefabricating a post-cast strip template, and hoisting the post-cast strip template in place;
s5, pouring a foundation slab;
s6, pouring concrete in the post-pouring belt;
and S7, grouting and plugging the joint.
The technical principle of the invention is as follows: during the use, at first, fix a position the unwrapping wire in post-cast strip department, adjust the flexible volume of bracing piece for the tip of a plurality of bracing pieces all is in the same horizontal plane after, then carries out concrete placement to upper and lower two-layer pouring position in proper order, and the pouring of post-cast strip is accomplished to the slip casting shutoff of seam department at last.
Compared with the prior art, the invention has the following beneficial effects: the supporting rods are telescopic, so that the lengths of the supporting rods can be adjusted according to different terrains to enable the upper surfaces of the templates to be located on the same horizontal plane, and the firmness of the templates can be improved by the aid of the supporting rods, so that the pouring quality of a post-pouring belt is guaranteed; in addition, the water stop steel plate can reduce the leakage risk; the template is directly arranged in a post-cast strip before pouring, and is not required to be disassembled in the later period, so that the problems of concrete leakage, infirm template reinforcement and unclean disassembly are solved.
Preferably, the pouring position on the lower layer is provided with a first cross rod and a second cross rod, the first cross rods and the second cross rods are arranged in a crossed mode, two ends of each first cross rod are fixedly connected with the corresponding supporting plate respectively, the supporting rods are rotatably arranged on the first cross rods, and end portions of the second cross rods are flush with the supporting plates.
Preferably, the first cross rod is fixedly provided with mounting sleeves with the same number as the support rods, and one end of each support rod extends into the mounting sleeves and is in threaded fit with the mounting sleeves.
Preferably, the inner wall of the groove is fixedly provided with a first limiting block and a second limiting block which are oppositely arranged from top to bottom, and when the water stop steel plate is positioned in the installation cavity, the upper surface and the lower surface of the water stop steel plate are respectively abutted against the corresponding first limiting block and the second limiting block.
Preferably, the support device further comprises a third cross bar and a fourth cross bar, the two support plates are connected through the third cross bar, and the fourth cross bar is located in the pouring position of the upper layer and is movably connected with the support bars.
Preferably, the water stop steel plate is provided with a pouring opening, and the pouring opening enables the two layers of pouring positions to be communicated.
Preferably, at least one detachable baffle is arranged between the two support plates, and the baffle is perpendicular to the water stop steel plate.
Preferably, a clamping groove is formed in the supporting plate, a clamping tooth is formed in the baffle plate, and the clamping tooth is clamped in the clamping groove to enable the baffle plate to block the mounting cavity.
Preferably, the bottom of the water collecting pit is lower than the bottom of the post-pouring belt, the height difference is not less than 300 mm, and the bottom of the post-pouring belt is provided with a slope of 3-5%.
Drawings
FIG. 1 is a first perspective view of a post-cast strip template of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a second perspective view of a post-cast strip template of the present invention;
FIG. 4 is a schematic structural view of a post-cast strip;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
in the figure: 1. a support plate; 2. installing a cavity; 3. a groove; 4. a water stop steel plate; 5. pouring; 6. a support bar; 7. a first cross bar; 8. a second cross bar; 9. installing a sleeve; 10. a first stopper; 11. a second limiting block; 12. a third cross bar; 13. a fourth cross bar; 14. pouring a mouth; 15. a baffle plate; 16. a card slot; 17. clamping teeth; 18. PVC sleeves; 19. post-pouring a belt; 20. a water collecting pit.
Detailed Description
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention will be further described with reference to the accompanying figures 1-5.
Referring to fig. 1-3, a post-cast strip template includes:
the support plates 1 are oppositely arranged left and right to form a mounting cavity 2, a groove 3 with an upward opening is formed in each support plate 1, and each groove 3 is communicated with the mounting cavity 2;
the water stop steel plate 4 transversely penetrates through the mounting cavity 2 through the groove 3 and is abutted against the supporting plate 1, and the mounting cavity 2 is divided into an upper layer of pouring position 5 and a lower layer of pouring position 5 by the water stop steel plate 4;
the bracing piece 6, a plurality of bracing pieces 6 interval arrangement to the telescopic runs through on stagnant water steel sheet 4, makes the upper portion of bracing piece 6 be located the position 5 of pouring on upper strata, and the lower part of bracing piece 6 is located the position 5 of pouring on lower floor.
During the use, at first, fix a position the unwrapping wire in post-cast strip department, adjust the flexible volume of bracing piece 6 for the upper end of a plurality of bracing pieces 6 all is in the same horizontal plane after, then carries out concrete placement to upper and lower two-layer pouring position 5 in proper order, and the pouring of post-cast strip is accomplished promptly to seam point slip casting shutoff at last. The supporting rods 6 are telescopic, so that the lengths of the supporting rods can be adjusted according to different terrains to enable the upper surfaces of the templates to be located on the same horizontal plane, the casting surface is prevented from being uneven due to unevenness of the templates, the firmness of the templates can be improved by the supporting rods 6, and the casting quality of a post-cast strip is guaranteed; in addition, the water stop steel plate 4 can reduce the leakage risk; the template is directly arranged in a post-cast strip before pouring, and is not required to be disassembled in the later period, so that the problems of concrete leakage, infirm template reinforcement and unclean disassembly are solved.
Be located the position of pouring 5 of lower floor and have first horizontal pole 7 and second horizontal pole 8, a plurality of first horizontal poles 7 and a plurality of second horizontal poles 8 are crossed and are arranged and form network structure in order to improve the steadiness of template, the both ends of first horizontal pole 7 respectively with the 1 fixed connection of backup pad that corresponds, on first horizontal pole 7 was located in the rotation of bracing piece 6, the tip and the backup pad 1 of second horizontal pole 8 flushed. The clearance between first horizontal pole 7 and the second horizontal pole 8 can hold the sediment of small part, avoids the sediment to arrange its below in and influences the later stage and pour, and cross distribution can improve the steadiness of template simultaneously, and then improves the quality of pouring of post-cast strip.
The first cross rod 7 is fixedly provided with mounting sleeves 9 with the same number as the support rods 6, and one end of each support rod 6 extends into the corresponding mounting sleeve 9 and is in threaded fit with the corresponding mounting sleeve. The support rod 6 is screwed in and out, so that the extending length of the support rod 6 is changed, the surface of the template is positioned on the same horizontal plane, and the surface of the poured post-cast strip is smooth.
The inner wall of the groove 3 is fixedly provided with a first limiting block 10 and a second limiting block 11 which are oppositely arranged from top to bottom, and when the water stop steel plate 4 is positioned in the installation cavity 2, the upper surface and the lower surface of the water stop steel plate 4 are respectively abutted against the corresponding first limiting block 10 and the corresponding second limiting block 11. The first limiting block 10 and the second limiting block 11 tightly clamp the water stop steel plate 4 therebetween, so that the water stop steel plate 4 is prevented from sliding up and down in the groove 3 to influence the firmness of the template; in addition, the water stop steel plate 4 is fixed, so that the leakage risk can be avoided.
The support plate is characterized by further comprising a third cross bar 12 and a fourth cross bar 13, the two support plates 1 are connected through the third cross bar 12, and the fourth cross bar 13 is located in the pouring position 5 on the upper layer and movably connected with the support rods 6. After adjusting back bracing piece 6, bracing piece 6 card is gone into in the fourth horizontal pole 13, as shown in fig. 3, the tip card of fourth horizontal pole 13 is gone into in the third horizontal pole 12, in other embodiments, fourth horizontal pole 13 also can erect between two third horizontal poles 12, and fourth horizontal pole 13 can further inject the levelness of template upper surface, avoids the back-cast strip of pouring to appear the highly uneven slope problem.
The water stop steel plate 4 is provided with a pouring opening 14, and the pouring opening 14 enables the two layers of pouring positions 5 to be communicated. And the situation that the pouring position 5 positioned at the lower layer cannot be completely filled with concrete due to the blocking of the water stop steel plate 4 is avoided.
A detachable baffle plate 15 is arranged between the two supporting plates 1, and the baffle plate 15 is arranged perpendicular to the water stop steel plate 4. In the pouring process, because the concrete is unshaped, the baffle 15 can play a shaping role in the concrete, and the concrete is prevented from leaking slurry.
The supporting plate 1 is provided with a clamping groove 16, the baffle plate 15 is provided with a clamping tooth 17, and the clamping tooth 17 is clamped in the clamping groove 16 to enable the baffle plate 15 to seal the installation cavity 2. In the pouring process, the latch 17 is clamped in the clamping groove 16, so that the baffle 15 can position the concrete; after a certain period of pouring, the baffle 15 is removed, and the latch 17 is partially filled with concrete and leveled, so that the surface of the poured post-cast strip is relatively flat.
As shown in fig. 4-5, the construction method for casting the post-cast strip by using the post-cast strip template comprises the following steps:
s1, arranging a 500 mm-500 mm water collection pit 20 beside a post-pouring belt 19;
s2, connecting the post-pouring belt 19 with the water collection pit 20 through a PVC sleeve 18 with the diameter of 200 mm;
s3, the post-cast strip is flushed by a high-pressure water gun, so that slurry flows into the water collecting pit 20 through the PVC sleeve 18, the slurry and accumulated water in the post-cast strip can be thoroughly cleaned, the casting quality of the post-cast strip 19 can be effectively guaranteed, and the leakage risk is reduced;
s4, prefabricating post-cast strip templates, hoisting the post-cast strip templates in place, adding the post-cast strip templates according to actual conditions, and completing splicing operation after the post-cast strip templates are lapped through the water stop steel plates 4;
s5, pouring a foundation slab;
s6, pouring concrete into the post-pouring belt 19;
and S7, grouting and plugging the joint.
The bottom of the water collection pit 20 is lower than the bottom of the post-pouring belt, the height difference is not less than 300 mm, and a slope of 3-5% is arranged at the bottom of the post-pouring belt 19. The slurry and the accumulated water in the post-cast strip 19 can be conveniently input into the water collecting pit 20.
The post-cast strip poured by the template is firmer, is free from being dismantled, and avoids the problems of concrete leakage, difficult reinforcement and dismantling of the template or incomplete dismantling; in addition, the problem of sediment in the post-cast strip is solved, and the pouring quality of the post-cast strip is effectively guaranteed.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. Post-cast strip template, its characterized in that includes:
the support plates (1) are oppositely arranged left and right to form a mounting cavity (2), a groove (3) with an upward opening is formed in each support plate (1), and each groove (3) is communicated with the corresponding mounting cavity (2);
the water stop steel plate (4) transversely penetrates through the mounting cavity (2) through the groove (3) and is abutted against the supporting plate (1), and the mounting cavity (2) is divided into an upper layer and a lower layer of pouring positions (5) by the water stop steel plate (4);
the support rods (6) are arranged at intervals, and the support rods (6) penetrate through the water stop steel plate (4) in a telescopic mode, so that the upper portions of the support rods (6) are located at the pouring positions (5) on the upper layer, and the lower portions of the support rods (6) are located at the pouring positions (5) on the lower layer.
2. The post-cast strip template as claimed in claim 1, wherein a first cross bar (7) and a second cross bar (8) are arranged on the lower casting position (5), the first cross bars (7) and the second cross bars (8) are arranged in a crossed manner, two ends of each first cross bar (7) are fixedly connected with the corresponding support plate (1), the support rods (6) are rotatably arranged on the first cross bars (7), and the ends of the second cross bars (8) are flush with the support plates (1).
3. A post-cast strip template according to claim 2, wherein the first cross bar (7) is fixedly provided with mounting sleeves (9) with the number equal to that of the support bars (6), and one end of each support bar (6) extends into the mounting sleeve (9) and is in threaded fit with the mounting sleeve.
4. The post-cast strip template according to claim 1, wherein a first limiting block (10) and a second limiting block (11) which are arranged oppositely up and down are fixedly arranged on the inner wall of the groove (3), and when the water-stopping steel plate (4) is positioned in the installation cavity (2), the upper surface and the lower surface of the water-stopping steel plate (4) are respectively abutted against the corresponding first limiting block (10) and the second limiting block (11).
5. A post-cast strip formwork according to claim 1, further comprising a third cross bar (12) and a fourth cross bar (13), wherein the two supporting plates (1) are connected through the third cross bar (12), and the fourth cross bar (13) is located in the upper casting position (5) and movably connected with the supporting bar (6).
6. A post-cast strip formwork according to claim 1, wherein the waterstop steel plate (4) is provided with a pouring opening (14), and the pouring opening (14) enables the two layers of pouring positions (5) to be communicated.
7. A post-cast strip formwork according to claim 1, characterized in that between two of said supporting plates (1) there is at least one removable baffle (15), said baffle (15) being arranged perpendicular to said stagnant steel plate (4).
8. A post-cast strip template according to claim 7, characterized in that the supporting plate (1) is provided with a clamping groove (16), the baffle plate (15) is provided with a clamping tooth (17), and the clamping tooth (17) is clamped in the clamping groove (16) to enable the baffle plate (15) to block the mounting cavity (2).
9. A construction method for casting a post-cast strip by using the post-cast strip template according to any one of claims 1 to 8, characterized by comprising the following steps:
s1, arranging a 500 mm-500 mm water collection pit (20) beside the post-pouring belt (19);
s2, connecting the post-pouring belt (19) with the water collection pit (20) through a PVC sleeve (18) with the diameter of 200 mm;
s3, a high-pressure water gun washes the slurry and then the slurry flows into a sump (20) through a PVC sleeve (18) by a pouring belt (19);
s4, prefabricating a post-cast strip template, and hoisting the post-cast strip template in place;
s5, pouring a foundation slab;
s6, pouring concrete into the post-pouring belt (19);
and S7, grouting and plugging the joint.
10. The construction method for pouring the post-cast strip according to claim 9, characterized in that the bottom of the water collecting pit (20) is lower than the bottom of the post-cast strip (19), the height difference is not less than 300 mm, and the bottom of the post-cast strip (19) is provided with a slope of 3% -5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110097616.5A CN112761351A (en) | 2021-01-25 | 2021-01-25 | Post-cast strip template and construction method for casting post-cast strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110097616.5A CN112761351A (en) | 2021-01-25 | 2021-01-25 | Post-cast strip template and construction method for casting post-cast strip |
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| Publication Number | Publication Date |
|---|---|
| CN112761351A true CN112761351A (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110097616.5A Pending CN112761351A (en) | 2021-01-25 | 2021-01-25 | Post-cast strip template and construction method for casting post-cast strip |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338301A (en) * | 2021-06-24 | 2021-09-03 | 王科彩 | Construction foundation ditch is with repairable formula steel bearing structure of grout |
| CN118061196A (en) * | 2024-04-17 | 2024-05-24 | 中建八局西南建设工程有限公司 | Clamping equipment adaptation system based on article characteristics |
-
2021
- 2021-01-25 CN CN202110097616.5A patent/CN112761351A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338301A (en) * | 2021-06-24 | 2021-09-03 | 王科彩 | Construction foundation ditch is with repairable formula steel bearing structure of grout |
| CN118061196A (en) * | 2024-04-17 | 2024-05-24 | 中建八局西南建设工程有限公司 | Clamping equipment adaptation system based on article characteristics |
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