CN115126244A - High-low grade concrete interception device and construction method - Google Patents
High-low grade concrete interception device and construction method Download PDFInfo
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- CN115126244A CN115126244A CN202210843151.8A CN202210843151A CN115126244A CN 115126244 A CN115126244 A CN 115126244A CN 202210843151 A CN202210843151 A CN 202210843151A CN 115126244 A CN115126244 A CN 115126244A
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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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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Abstract
The invention discloses a high-low grade concrete interception device and a construction method, the high-low grade concrete interception device comprises two groups of beam side plates and a beam bottom plate, transverse steel bars are erected in the two groups of beam side plates, a blocking block is arranged at the end part of the beam bottom plate, an interception structure is arranged between the two groups of beam side plates above the blocking block and comprises a top rail and the beam side plates, the bottom of the top rail is fixedly connected with a rubber separation core die, the rubber separation core die comprises a rubber air bag, an inflation inlet is arranged on the rubber air bag, an inflation pipe is arranged in the inflation inlet, an inflation valve is arranged at the end part of the inflation pipe, the rubber air bag comprises a top air bag and finger part air bags, and a steel bar passing port is reserved between the finger part air bags; according to the invention, through the arrangement of the interception structure, the interception rate of high-grade concrete is improved, the problem that the concrete is serially connected from high-grade areas to low-grade areas is effectively reduced, the appearance of strong beams and weak columns is avoided, and the quality of the structure is ensured.
Description
Technical Field
The invention belongs to the technical field of building concrete pouring construction, and particularly relates to a high-low grade concrete intercepting device and a construction method.
Background
With the increasing shortage of land resources, high-rise buildings and even super high-rise buildings are in endless, the grade of concrete of columns and walls in concrete structures is inevitably increased along with the increase of the height of the buildings, and a phenomenon that the strength grade difference of concrete of a large number of columns and beams and walls is more than two grades appears.
When the design strength of column and wall concrete is higher than that of beam and plate concrete by two grades or more (more than or equal to 10MPa), the main construction process in China at present is to arrange an interception measure in a low-strength member in a junction area of a column beam and a wall beam, and realize interception by arranging an integral fast and easy closing net forming an angle of 45 degrees with the beam at a position which is not less than 500mm away from the edge of the high-strength member and not less than 1/2h (beam height). Because the post roof beam, wall roof beam core space district reinforcing bar is intensive, have a large amount of reinforcing bars to pass when adopting the interception of integral fast easy binding off net, often can only arrange fast easy binding off net at the roof beam reinforcing bar inboard in the work progress, just so lead to roof beam lower part reinforcing bar protection layer region, the unable interception that realizes in roof beam both sides reinforcing bar side protection layer region, the concrete can flow low-grade region when pouring high-grade concrete, cause the pollution of high-grade concrete to low-grade concrete region and produce the cold joint at low-grade regional beam root, the structural security and the concrete impression quality of low-grade regional roof beam have been influenced.
Disclosure of Invention
The invention aims to solve the problems that when the existing beam column is poured, concrete flows to a low-label area when high-label concrete is poured, and the concrete flows to the low-label area when high-label concrete is poured, so that the high-label concrete pollutes the low-label concrete area, cold joints are generated at the root of a beam in the low-label area, and the structural safety and the concrete appearance quality of the beam in the low-label area are influenced, and particularly provides a high-label concrete blocking device and a construction method.
The purpose of the invention is realized by the following technical scheme:
a high-low grade concrete interception device comprises two groups of beam side plates and a beam bottom plate, wherein transverse steel bars are erected in the two groups of beam side plates and fixed through a steel bar frame and iron wires, the end part of the beam bottom plate is provided with a blocking block, two ends of the blocking block are respectively connected with the bottom parts of the inner sides of the two side beam side plates, an interception structure is arranged between the two groups of beam side plates above the blocking block and comprises a top rail and the beam side plates, the top rail is fixed on the beam side plates through a fixing frame, the beam side plates are inserted at the end parts of the beam side plates, the outer edges of the beam side plates abut against the inner walls of the beam side plates, the top parts of the beam side plates are in sliding connection with the top rail, the bottom parts of the top rail are fixedly connected with a rubber separation core die, the rubber separation core die comprises a rubber air bag, and an inflation inlet is arranged in the middle of the upper end of the rubber air bag, install the gas tube in the inflation inlet, the gas tube is flexible rubber hose, and the inflation valve is installed to the tip of gas tube, the rubber gasbag includes top gasbag and the digit gasbag of a plurality of groups that link to each other with the top gasbag, leave the reinforcing bar between the gasbag of digit portion and pass through the mouth.
In the scheme, the side wall of the fixing frame is welded with a second bolt, the second bolt is inserted into a sliding groove formed in the movable guide rail, a second nut is installed on the end portion of the second bolt in a threaded mode, a threaded hole is formed in the side wall of the lower end of the fixing frame, and a threaded bolt is installed in the threaded hole in a threaded mode.
In the scheme, the upper end of the beam side plate is provided with a round hole, a first bolt is inserted into the round hole, the first bolt is inserted into a sliding groove formed in the movable guide rail, and a first nut is installed at the end part of the first bolt in a threaded mode.
In the above scheme, a pull ring is welded in the middle of the upper surface of the movable guide rail, the pull ring is semicircular, and the thickness of the pull ring is the same as that of the movable guide rail.
In the above scheme, roof beam curb plate assistance-localization real-time structure comprises threaded rod, a cylinder section of thick bamboo, screw ring piece, installation piece, iron nail and spacing, and the threaded rod is pegged graft in a cylinder section of thick bamboo, and the upper end of a cylinder section of thick bamboo is rotated and is installed screw ring piece, and screw ring piece screw thread is installed on the threaded rod, and the tip welding of threaded rod and a cylinder section of thick bamboo has the installation piece, has seted up the round hole on the installation piece, and it has the iron nail to peg graft in the round hole, and the iron nail is followed closely on the crossbeam curb plate, and the lateral wall welding of threaded rod and a cylinder section of thick bamboo has spacing, and spacing grafting is at the tip of crossbeam curb plate.
In the scheme, the end part of the limiting frame is provided with the cylindrical groove, and the magnet is arranged in the cylindrical groove.
In the scheme, the bottom of the cylindrical barrel is provided with the cylindrical seat, the cylindrical seat is provided with the inserted bar in a threaded manner, the inserted bar is inserted into the threaded rod, and the upper end of the inserted bar is flush with the upper end of the cylindrical barrel.
A construction method of a high-low grade concrete interception device is used for installing the high-low grade concrete interception device in the scheme and comprises the following steps:
s1: summarizing and finishing the beam section size at the intersection of each beam wall and each beam column according to a design construction drawing, and determining the separation position;
s2: measuring and paying off, positioning a position which is mm away from a wall or a column after the top plate is laid, and placing a plugging block which has the same length as the cross section of the beam, is mm wide and has the same height as the thickness of the protective layer on the bottom plate of the beam;
s3: binding transverse steel bars;
s4: manufacturing a corresponding rubber separation core mold according to the arrangement condition of the reinforcing steel bars in the cross beam;
s5: an interceptor is inserted between the reinforcing steel bars on the side face of the beam and the template, the bottom of the side beam plate is tightly attached to the inner side of the concrete plugging block, and the finger part air bags of the rubber separation core mold extend into the corresponding reinforcing steel bars;
s6: the rubber air bags are inflated through the inflation tubes until the rubber air bags completely fill the gaps between the cross beam side plates and the plugging blocks until no gap exists;
s7: and pouring high-grade concrete at the wall, the column and the beam end, taking out the interceptor after the high-grade concrete is initially set, recycling the interceptor, and continuously pouring low-grade concrete of the cross beam.
The invention has the beneficial effects that:
1. according to the invention, through the arrangement of the intercepting structure, the blocking block is used for blocking the reinforcing steel bar protection layer area at the lower part of the beam, the beam side plate is used for blocking the reinforcing steel bar side protection layer areas at the two sides of the beam, the rubber separation core mold is used for separating the beam and the wall column, so that the intercepting rate of high-grade concrete is improved, the problems that the high-grade concrete pollutes the low-grade concrete area due to the series flow of the concrete from the high-grade area and the low-grade area and the cold joint is generated at the root part of the beam in the low-grade area, the structural safety and the concrete impression quality of the beam in the low-grade area are influenced are effectively avoided, the attractive appearance of concrete molding is ensured, the waste of cost is reduced, meanwhile, the strong beam and weak column are avoided, and the structural quality is ensured.
2. According to the invention, the rubber air bags are arranged to comprise the top air bags and the plurality of groups of finger part air bags connected with the top air bags, and no gap is left between the transverse reinforcing steel bars after the rubber air bags are inflated in a manner that reinforcing steel bar passing openings are left between the finger part air bags, so that the interception rate of high-grade concrete is further improved.
3. The invention avoids the defect that a large amount of steel wire meshes are reserved at the beam-column separation position in the traditional process, and ensures the structural quality.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a partial cross-sectional view of the present invention;
FIG. 4 is an exploded view of the structure of the present invention;
FIG. 5 is a schematic view of the construction of a rubber separation plug;
wherein the reference numbers are specifically: 1-beam side panel, 2-beam bottom panel, 3-block, 4-rubber separation mandrel, 5-head rail, 6-beam side panel, 7-bolt one, 8-nut one, 9-mount, 10-nut two, 11-threaded bolt, 12-threaded rod, 13-cylinder, 14-threaded ring block, 15-mounting block, 16-iron nail, 17-stop rack, 18-cylinder groove, 19-magnet, 41-rubber air bag, 42-inflation inlet, 43-inflation tube, 44-inflation valve, 51-chute, 52-pull ring, 53-beam side panel, 101-transverse steel bar, 102-steel bar rack, 103-iron wire, 131-cylinder seat, 132-inserted rod, 411-head air bag, 412-finger bladder, 413-rebar passage port.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
A high-low grade concrete intercepting device comprises two groups of beam side plates 1 and a beam bottom plate 2, wherein transverse steel bars 101 are erected in the two groups of beam side plates 1, the transverse steel bars 101 are fixed through steel bar frames 102 and iron wires 103, the end part of the beam bottom plate 2 is provided with a blocking block 3, two ends of the blocking block 3 are respectively connected with the bottoms of the inner sides of the two sides of the beam side plates 1, an intercepting structure is arranged between the two groups of beam side plates 1 above the blocking block 3, the intercepting structure comprises a top rail 5 and a beam side plate 6, the top rail 5 is fixed on the beam side plates 1 through a fixing frame 9, the beam side plates 6 are inserted at the end parts of the beam side plates 1, the outer edges of the beam side plates 6 abut against the inner walls of the beam side plates 1, the tops of the beam side plates 6 are slidably connected with the top rails 5, the bottoms of the top rails 5 are fixedly connected with rubber separation core molds 4, and the rubber separation core molds 4 comprise rubber airbags 41, an inflation inlet 42 is installed in the middle of the upper end of the rubber air bag 41, an inflation tube 43 is installed in the inflation inlet 42, the inflation tube 43 is a rubber hose, an inflation valve 44 is installed at the end part of the inflation tube 43, the rubber air bag 41 comprises a top air bag 411 and a plurality of groups of finger air bags 412 connected with the top air bag 411, and a steel bar passing port 413 is reserved between the finger air bags 412;
in this embodiment, a construction method of a high-low grade concrete interception device includes the following steps:
s1: summarizing and finishing the beam section size at the intersection of each beam wall and each beam column according to a design construction drawing, and determining the separation position;
s2: measuring and paying off, positioning the top plate 500mm away from the wall or the column after the top plate is laid, and placing a plugging block 3 with the same length as the cross section of the beam, the same width as the cross section of the beam and the same height as the thickness of the protective layer on the bottom plate of the beam;
s3: binding transverse steel bars 11;
s4: manufacturing a corresponding rubber separation core mold 4 according to the arrangement condition of the reinforcing steel bars in the cross beam;
s5: an interceptor is inserted between the reinforcing steel bars on the side of the beam and the template, the bottom of the side beam plate 6 is tightly attached to the inner side of the concrete plugging block 3, and the finger part air bags of the rubber separation core mold 4 extend into the corresponding reinforcing steel bars;
s6: the rubber air bags are inflated through the inflation tubes until the rubber air bags completely fill the gap between the beam side plate 1 and the plugging block 2 until no gap exists;
s7: and pouring high-grade concrete at the wall, the column and the beam end, taking out the interceptor after initial setting, recycling and continuously pouring the low-grade concrete of the beam. .
Example 2
On the basis of the embodiment 1, a second bolt is welded on the side wall of the fixed frame 9, the second bolt is inserted into the sliding groove 51 formed in the movable guide rail 5, a second nut 10 is installed on the end portion of the second bolt in a threaded manner, a threaded hole is formed in the side wall of the lower end of the fixed frame 9, and a threaded bolt 11 is installed in the threaded hole in a threaded manner.
Example 3
On the basis of the embodiment 1 or 2, the upper end of the beam side plate 6 is provided with a round hole, a first bolt 7 is inserted into the round hole, the first bolt 7 is inserted into a sliding groove 51 formed in the movable guide rail 5, and a first nut 8 is installed at the end part of the first bolt 7 in a threaded mode.
Example 4
On the basis of the above embodiment, the pull ring 52 is welded in the middle of the upper surface of the moving guide rail 5, the pull ring 52 is semicircular, and the thickness of the pull ring 52 is the same as that of the moving guide rail 5.
Example 5
On the basis of the embodiment, the beam side plate auxiliary positioning structure is composed of a threaded rod 12, a cylindrical barrel 13, a threaded ring block 14, an installation block 15, iron nails 16 and a limiting frame 17, wherein the threaded rod 12 is inserted into the cylindrical barrel 13, the upper end of the cylindrical barrel 13 is rotatably provided with the threaded ring block 14, the threaded ring block 14 is installed on the threaded rod 12 in a threaded mode, the installation block 15 is welded at the end portions of the threaded rod 12 and the cylindrical barrel 13, a round hole is formed in the installation block 15, the iron nails 16 are inserted into the round hole and are nailed on the beam side plate 1, the limiting frame 17 is welded on the side walls of the threaded rod 12 and the cylindrical barrel 13, and the limiting frame 17 is inserted into the end portion of the beam side plate 1.
Example 6
On the basis of the above embodiment, the end of the limiting frame 17 is provided with a cylindrical groove 18, and a magnet 19 is installed in the cylindrical groove 18.
Example 7
On the basis of the above embodiment, the bottom of the cylinder 13 is provided with the cylinder seat 131, the cylinder seat 131 is provided with the inserted link 132 in a threaded manner, the inserted link 132 is inserted into the threaded rod 12, and the upper end of the inserted link 132 is flush with the upper end of the cylinder 13.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a height mark grade concrete intercepting device, includes two sets of crossbeam curb plate (1) and crossbeam bottom plate (2), erects horizontal reinforcing bar (101) in two sets of crossbeam curb plate (1), horizontal reinforcing bar (101) are fixed its characterized in that through reinforcing bar frame (102) and iron wire (103): the end part of the beam bottom plate (2) is provided with a blocking block (3), the two ends of the blocking block (3) are respectively connected with the inner bottom parts of the beam side plates (1) at the two sides, an intercepting structure is arranged between the two groups of beam side plates (1) above the blocking block (3), the intercepting structure comprises a top track (5) and a beam side plate (6), the top track (5) is fixed on the beam side plate (1) through a fixing frame (9), the beam side plate (6) is inserted into the end part of the beam side plate (1), the outer edge of the beam side plate (6) is abutted against the inner wall of the beam side plate (1), the top part of the beam side plate (6) is slidably connected with the top track (5), the bottom part of the top track (5) is fixedly connected with a rubber separation core mold (4), the rubber separation core mold (4) comprises a rubber air bag (41), and an inflation inlet (42) is arranged in the middle of the upper end of the rubber air bag (41), install gas tube (43) in gas charging port (42), gas tube (43) are rubber hose, and inflation valve (44) are installed to the tip of gas tube (43), rubber gasbag (41) include top gasbag (411) and a plurality of groups that link to each other with top gasbag (411) indicate gasbag (412), it passes through mouth (413) to leave the reinforcing bar between gasbag (412) to indicate.
2. The high-low grade concrete intercepting apparatus according to claim 1, wherein: and a second bolt is welded on the side wall of the fixed frame (9), the second bolt is inserted into a sliding groove (51) formed in the movable guide rail (5), a second nut (10) is installed on the end part of the second bolt in a threaded manner, a threaded hole is formed in the side wall of the lower end of the fixed frame (9), and a threaded bolt (11) is installed in the threaded hole in a threaded manner.
3. The high-low grade concrete intercepting device according to claim 1, wherein: the beam side plate is characterized in that a round hole is formed in the upper end of the beam side plate (6), a first bolt (7) is inserted into the round hole, the first bolt (7) is inserted into a sliding groove (51) formed in the movable guide rail (5), and a first nut (8) is installed at the end part of the first bolt (7) in a threaded mode.
4. The high-low grade concrete intercepting device according to claim 1, wherein: the middle of the upper surface of the movable guide rail (5) is welded with a pull ring (52), the pull ring (52) is semicircular, and the thickness of the pull ring (52) is the same as that of the movable guide rail (5).
5. The high-low grade concrete intercepting apparatus according to claim 1, wherein: the auxiliary positioning structure for the beam side plate is composed of a threaded rod (12), a cylindrical barrel (13), a threaded ring block (14), an installation block (15), iron nails (16) and a limiting frame (17), the threaded rod (12) is inserted into the cylindrical barrel (13), the upper end of the cylindrical barrel (13) is rotatably installed with the threaded ring block (14), the threaded ring block (14) is installed on the threaded rod (12) in a threaded mode, the installation block (15) is welded to the end portions of the threaded rod (12) and the cylindrical barrel (13), a round hole is formed in the installation block (15), the iron nails (16) are inserted into the round hole, the iron nails (16) are nailed on the beam side plate (1), the limiting frame (17) is welded to the side walls of the threaded rod (12) and the cylindrical barrel (13), and the limiting frame (17) is inserted into the end portion of the beam side plate (1).
6. The high-low grade concrete intercepting device according to claim 5, wherein: the end part of the limiting frame (17) is provided with a cylindrical groove (18), and a magnet (19) is arranged in the cylindrical groove (18).
7. A wall and column concrete junction spacing device as claimed in claim 6, wherein: the bottom of a cylinder (13) is provided with a cylinder seat (131), the cylinder seat (131) is provided with an inserted bar (132) in a threaded manner, the inserted bar (132) is inserted into the threaded rod (12), and the upper end of the inserted bar (132) is flush with the upper end of the cylinder (13).
8. A construction method of a high and low grade concrete intercepting apparatus, wherein the construction method is used for installing the high and low grade concrete intercepting apparatus as claimed in any one of claims 1 to 7, and the method comprises the following steps:
s1: summarizing and finishing the beam section size at the intersection of each beam wall and each beam column according to a design construction drawing, and determining the separation position;
s2: measuring and paying off, positioning the top plate 500mm away from the wall or the column after the top plate is laid, and placing a plugging block (3) with the same length as the cross section of the beam, the same width as the cross section of the beam, and the same height as the thickness of the protective layer on the bottom plate of the beam;
s3: binding transverse steel bars (11);
s4: manufacturing a corresponding rubber separation core mold (4) according to the arrangement condition of the reinforcing steel bars in the cross beam;
s5: an interceptor is inserted between the reinforcing steel bars on the side face of the beam and the template, the bottom of the side beam plate (6) is tightly attached to the inner side of the concrete plugging block (3), and the finger part air bags of the rubber separation core mold (4) extend into the corresponding reinforcing steel bars;
s6: the rubber air bags are inflated through the inflation tubes until the rubber air bags completely fill the gap between the beam side plate (1) and the plugging block (2) until no gap exists;
s7: and pouring high-grade concrete at the wall, the column and the beam end, taking out the interceptor after initial setting, recycling and continuously pouring the low-grade concrete of the beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210843151.8A CN115126244A (en) | 2022-07-18 | 2022-07-18 | High-low grade concrete interception device and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210843151.8A CN115126244A (en) | 2022-07-18 | 2022-07-18 | High-low grade concrete interception device and construction method |
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| CN115126244A true CN115126244A (en) | 2022-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210843151.8A Pending CN115126244A (en) | 2022-07-18 | 2022-07-18 | High-low grade concrete interception device and construction method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001123665A (en) * | 1999-10-27 | 2001-05-08 | Sogo Concrete Service:Kk | Execution method for concrete structure, bar arrangement stand, balloon spacer, and form used for it |
| JP2011026777A (en) * | 2009-07-21 | 2011-02-10 | Toho Kenzai:Kk | Pneumatic form |
| KR20200001199U (en) * | 2018-11-30 | 2020-06-09 | 박서연 | Blocking board |
| KR20200107369A (en) * | 2019-03-07 | 2020-09-16 | 폼으로 주식회사 | Barrier for concrete pouring |
| CN114197877A (en) * | 2021-12-02 | 2022-03-18 | 中建八局第二建设有限公司 | Wall and column concrete junction position separation device and construction method |
-
2022
- 2022-07-18 CN CN202210843151.8A patent/CN115126244A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001123665A (en) * | 1999-10-27 | 2001-05-08 | Sogo Concrete Service:Kk | Execution method for concrete structure, bar arrangement stand, balloon spacer, and form used for it |
| JP2011026777A (en) * | 2009-07-21 | 2011-02-10 | Toho Kenzai:Kk | Pneumatic form |
| KR20200001199U (en) * | 2018-11-30 | 2020-06-09 | 박서연 | Blocking board |
| KR20200107369A (en) * | 2019-03-07 | 2020-09-16 | 폼으로 주식회사 | Barrier for concrete pouring |
| CN114197877A (en) * | 2021-12-02 | 2022-03-18 | 中建八局第二建设有限公司 | Wall and column concrete junction position separation device and construction method |
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