CN116201294A - Combined steel bar grouting sleeve structure and installation method - Google Patents
Combined steel bar grouting sleeve structure and installation method Download PDFInfo
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- CN116201294A CN116201294A CN202310461527.3A CN202310461527A CN116201294A CN 116201294 A CN116201294 A CN 116201294A CN 202310461527 A CN202310461527 A CN 202310461527A CN 116201294 A CN116201294 A CN 116201294A
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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
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
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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
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Abstract
The invention relates to the field of assembled concrete structures, and particularly discloses a combined steel bar grouting sleeve structure and an installation method, wherein the combined steel bar grouting sleeve structure comprises a detachable guide-in structure arranged at the top of a sleeve body and used for positioning an upper steel bar, so that the upper steel bar and a lower steel bar are coaxially arranged; the first connecting structure is used for connecting the lower steel bars; and the second connecting structure is used for connecting the upper steel bars. According to the invention, when the upper steel bar is installed, the upper steel bar and the lower steel bar can be arranged coaxially, so that the positioning effect is achieved, the upper steel bar can be fixed by the positioning plate during grouting, the fixing effect is achieved, the upper steel bar and the lower steel bar are mechanically connected with the sleeve body respectively through the first connecting cylinder and the second connecting cylinder, and meanwhile, the upper steel bar and the lower steel bar are connected through the sleeve body in a grouting manner.
Description
Technical Field
The invention relates to the field of assembled concrete structures, in particular to a combined steel bar grouting sleeve structure and an installation method.
Background
The assembled structure has been widely used, the construction speed is fast, economic benefits and environmental benefits are good, the building structure is an emerging green environment-friendly energy-saving building structure, the grouting sleeve connection is an important component part of the connecting joint, a single ribbed steel bar is inserted into the metal sleeve, grouting material mixture is injected, the mixture is hardened to form a whole, and force transmission steel bar butt joint is realized, namely sleeve grouting connection. The metal sleeve for grouting connection of the steel bar sleeve is simply called a grouting sleeve which is manufactured by adopting a casting process or a machining process, and the grouting sleeve can be divided into a full grouting sleeve and a half grouting sleeve. The full grouting sleeve is a grouting sleeve with sleeve grouting connection at two ends; the half grouting sleeve is a grouting sleeve with one end connected by sleeve grouting and the other end connected with the steel bars by mechanical connection.
For example, CN108915156B is a combined grouting sleeve connecting structure and a method for constructing steel bar connection, a plurality of raised annular inner ribs are axially arranged on the inner wall of the sleeve body at intervals, the end parts of the upper and lower steel bars in the sleeve body are connected with horizontal end plates, the diameter of each end plate is larger than the inner diameter of each annular inner rib, the two end plates are positioned between any two adjacent annular inner ribs, the sleeve body is in a two-half separable structure which is divided by a plane passing through the axis of the sleeve body, and a constraint component is arranged on the outer side of the sleeve body to keep the sleeve body in a grouting integral state. The grouting sleeve connecting structure adopts a separated design, and can improve the integrity of prefabricated parts, thereby improving the quality and the anti-seismic performance.
And a combined grouting sleeve structure for connecting the steel bars between the prefabricated parts, for example, a Chinese patent publication No. CN215330963U, which comprises a grouting sleeve and a connecting piece; the connecting piece comprises a round head connecting piece and a square head connecting piece, and both the round head connecting piece and the square head connecting piece are provided with reinforcing steel bar connecting parts; the two ends of the grouting sleeve are respectively provided with a round head connecting piece and a square head connecting piece through screw thread meshing structures, a gap is reserved between the two ends of the inner cavity of the grouting sleeve, a slurry accommodating cavity is formed, and the grouting sleeve is provided with a through hole communicated with the slurry accommodating cavity. The combined grouting sleeve for the steel bar connection can reduce the slurry required by the steel bar connection and shorten the slurry hardening time.
Above-mentioned sleeve structure is when the assembly, and inconvenient with last reinforcing bar and lower reinforcing bar coaxial, and in the grout in-process, goes up the reinforcing bar and shifts easily, causes last reinforcing bar and the phenomenon of lower reinforcing bar dislocation non-coaxial, influences the connection effect, and both ends all adopt sleeve grout to connect or all adopt screw thread mechanical connection, joint strength is not enough.
Therefore, we propose a combined steel bar grouting sleeve structure and an installation method to solve the above problems.
Disclosure of Invention
The invention aims to provide a combined steel bar grouting sleeve structure and an installation method, which are used for solving the problems that the sleeve structure provided in the background art is inconvenient to coaxially arrange an upper steel bar and a lower steel bar during assembly and the upper steel bar is easy to shift during grouting.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a modular reinforcing bar grout sleeve structure, includes the sleeve body, the inside lower reinforcing bar that is equipped with of sleeve body and last reinforcing bar, it sets up at the lower reinforcing bar top to go up the reinforcing bar, sleeve body surface bottom is equipped with the grout mouth, sleeve body surface top is equipped with out the thick liquid mouth, still includes:
the detachable guide structure is arranged at the top of the sleeve body and used for positioning the upper steel bars, so that the upper steel bars and the lower steel bars are coaxial, and comprises a first guide plate and a second guide plate which are symmetrically arranged, wherein the first guide plate and the second guide plate are combined to be in a funnel shape, and the first guide plate and the second guide plate are detachably connected;
the first connecting structure comprises a first connecting cylinder, the first connecting cylinder is fixedly connected to the bottom of the inner wall of the sleeve body, the inner wall of the first connecting cylinder is fixedly connected with first internal threads, the middle part of the outer surface of the lower steel bar is fixedly connected with first external threads, the first internal threads are matched with the first external threads, and the top of the lower steel bar is deep into the sleeve body;
the second connecting structure for connecting the upper steel bar comprises a second connecting cylinder, the second connecting cylinder is fixedly connected to the top of the inner wall of the sleeve body, the second inner thread is fixedly connected to the inner wall of the second connecting cylinder, the second outer thread is fixedly connected to the middle part of the outer surface of the upper steel bar, the second inner thread is matched with the second outer thread, and the bottom of the upper steel bar penetrates into the sleeve body.
Through above-mentioned technical scheme, when the installation, cup joint first connecting cylinder at the reinforcing bar top down, through first internal thread and first external screw thread, make first connecting cylinder and lower reinforcing bar threaded connection, then sleeve body coupling is at the reinforcing bar top down, afterwards through the location leading-in effect of first leading-in board and second leading-in board, conveniently go up the reinforcing bar and insert sleeve body inside, be convenient for go up reinforcing bar and the coaxial setting of lower reinforcing bar, simultaneously, make going up reinforcing bar and second connecting cylinder threaded connection through second internal thread and second external screw thread, make and go up reinforcing bar and sleeve body coupling, still further fix a position the reinforcing bar simultaneously, make and go up reinforcing bar and the coaxial setting of lower reinforcing bar, and prevent when the grout, go up the reinforcing bar emergence skew, later carry out the grout again, connect up reinforcing bar and lower reinforcing bar through screw-thread mechanical connection and sleeve grout connection combination's connected mode, it is more stable to connect, it is more firm.
In further embodiments, the first leading-in board is close to first fixture block of second leading-in board one side fixedly connected with, first draw-in groove has been seted up to second leading-in board is close to first leading-in board one side, first fixture block and first draw-in groove joint, first laminating pipe of first leading-in board bottom fixedly connected with, second leading-in board bottom fixedly connected with second laminating pipe, first laminating pipe and second laminating pipe set up respectively in sleeve body both sides, the fixed slot has all been seted up in first laminating pipe outside and second laminating pipe outside, the inside fixedly connected with clamp of fixed slot, the inside bolt that is equipped with of clamp, first laminating pipe passes through clamp fixed connection with second laminating pipe.
Through above-mentioned technical scheme, through with first fixture block and first draw-in groove joint, be convenient for first leading-in board and the leading-in board of second are connected, convenient to detach simultaneously, through first laminating pipe and second laminating pipe, be convenient for with first leading-in board and the leading-in board fixed mounting of second at sleeve body surface, and improve first leading-in board and the leading-in board stability of second, place the clamp inside the fixed slot, later fix first laminating pipe and second laminating pipe at sleeve body surface through the clamp.
In a further embodiment, the first guide-in plate and the second guide-in plate are both fixedly connected with positioning plates, the top of the outer surface of the sleeve body is provided with positioning grooves, the first fitting pipe and the second fitting pipe are both fixedly connected with positioning rings, and the positioning rings are matched with the positioning grooves.
Through above-mentioned technical scheme, when installing first laminating pipe and second laminating pipe, with holding ring and constant head tank joint, further improve the connection stability of first laminating pipe and second laminating pipe both with the sleeve body, prevent in the use, first laminating pipe and second laminating pipe position take place to rotate, be convenient for go up reinforcing bar and the coaxial setting of lower reinforcing bar with the guide through the locating plate.
In further embodiments, still including being used for increasing the stability of reinforcing bar and setting up the stable structure on first leading-in board and second leading-in board, stable structure includes two threaded rods, two threaded rods respectively with first leading-in board and second leading-in board threaded connection, threaded rod one end rotates and is connected with the mounting, mounting inner wall and reinforcing bar surface phase-match, mounting inner wall fixedly connected with slipmat.
Through above-mentioned technical scheme, with go up the reinforcing bar and be connected the back with the second connecting cylinder, rotate the threaded rod, make the mounting of going up the reinforcing bar both sides press from both sides tight reinforcing bar, improve the reinforcing bar stability again, prevent to go up the reinforcing bar position and take place the skew in the grout in-process.
In further embodiments, the first extension bar of lower reinforcement top fixedly connected with, go up reinforcement bottom fixedly connected with second extension bar, first extension bar and second extension bar cross-sectional shape are the arc, first extension bar and second extension bar surface all fixedly connected with arch, the equal fixedly connected with crotch in first extension bar top and second extension bar bottom.
Through above-mentioned technical scheme, through being equipped with first extension bar and second extension bar, improve the connection firmness of upper bar and lower bar, through arch and crotch, make the area of contact increase of both of first extension bar and second extension bar and grout, increase connecting stress, make both of first extension bar and second extension bar and sleeve body coupling more firm.
In further embodiments, still including the first additional strengthening that is used for strengthening last reinforcing bar and lower reinforcing bar connection stability, first additional strengthening includes a plurality of first strengthening rib and second strengthening rib, first strengthening rib and the equal fixed connection of second strengthening rib are at sleeve body inner wall, first strengthening rib and second strengthening rib cross sectional shape are trapezoidal, first strengthening rib vertical arrangement is at sleeve body inner wall, the horizontal setting of second strengthening rib is at sleeve body inner wall, first logical groove has been seted up at first strengthening rib top, the second logical groove has been seted up to the inside second strengthening rib.
Through above-mentioned technical scheme, when the grout, through a plurality of first strengthening ribs and second strengthening rib, through a plurality of vertical setting at the first strengthening rib of sleeve body inner wall, a plurality of horizontal setting are at the second strengthening rib of sleeve body inner wall, increase sleeve body and the area of contact of thick liquids, through first logical groove and second logical groove in addition, promote that thick liquids are full of inside the sleeve body.
In a further embodiment, the sleeve further comprises a second reinforcing structure for enhancing connection stability of the upper steel bars and the lower steel bars, the second reinforcing structure comprises a plurality of first reinforcing grooves and second reinforcing grooves, the first reinforcing grooves and the second reinforcing grooves are all formed in the inner wall of the sleeve body, the cross section of the first reinforcing grooves and the cross section of the second reinforcing grooves are trapezoidal, the first reinforcing grooves are vertically formed in the inner wall of the sleeve body, and the second reinforcing grooves are transversely formed in the inner wall of the sleeve body.
Through above-mentioned technical scheme, through being equipped with first enhancement groove and second enhancement groove, and the vertical setting in sleeve body inner wall of first enhancement groove, the horizontal setting in sleeve body inner wall of second enhancement groove, in the grout in-process, inside first enhancement groove and second enhancement groove, increase sleeve and thick liquids are connected closely.
The invention also discloses a method for installing the combined steel bar grouting sleeve structure, which comprises the following steps: s1, connecting a first connecting cylinder with a lower steel bar through threads, so that a sleeve body is fixed at the top of the lower steel bar, and simultaneously, a first extension rod penetrates into the sleeve body;
s2, clamping the positioning ring with the positioning groove, clamping the first clamping block with the first clamping groove, splicing the first guide-in plate and the second guide-in plate, enabling the bottom of the positioning plate to cling to the top of the second connecting cylinder, and connecting the first joint pipe with the second joint pipe through the clamp;
s3, inserting the upper steel bar into a channel formed by the first guide-in plate and the second guide-in plate, positioning the upper steel bar, connecting the upper steel bar with the second connecting cylinder through threads, and enabling the first extension bar to extend into the sleeve body to connect the upper steel bar with the sleeve body;
s4, grouting the inside of the sleeve body through a grouting opening.
Compared with the prior art, the invention has the beneficial effects that:
the method comprises the following steps: the invention has the advantages that the first guide-in plate and the second guide-in plate are arranged, so that the upper steel bar and the lower steel bar can be arranged coaxially conveniently when the upper steel bar is installed, the positioning effect is achieved, the upper steel bar can be fixed by the positioning plate when grouting, the upper steel bar is prevented from shifting in the grouting process as much as possible, the upper steel bar and the lower steel bar are kept in a coaxial state all the time, and the integral connection effect is improved.
And two,: according to the invention, the upper steel bar and the lower steel bar are respectively and mechanically connected with the sleeve body in a threaded manner, meanwhile, the upper steel bar and the lower steel bar are connected in a grouting manner through the sleeve body, the upper steel bar and the lower steel bar are connected in a connecting manner combining threaded mechanical connection and sleeve grouting connection, the connection is more stable and firmer, meanwhile, the upper steel bar is connected with the sleeve body through threads, the positioning effect is also achieved, the upper steel bar and the lower steel bar are always kept in a coaxial state, the deviation is not easy to occur, and the whole service life is prolonged.
And thirdly,: according to the invention, the contact area between the upper steel bar and the lower steel bar and the slurry is increased by arranging the first extension bar, the second extension bar, the bulge and the hook, the connection stress is increased, and the contact area between the sleeve body and the slurry is increased by arranging the plurality of first reinforcing ribs, the second reinforcing ribs, the first reinforcing grooves and the second reinforcing grooves, and the connection stress between the sleeve body and the slurry is increased, so that the connection firmness between the upper steel bar and the lower steel bar is increased.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of a sleeve body according to the present invention;
FIG. 3 is a cross-sectional view of a first intake plate according to the present invention;
FIG. 4 is a cross-sectional view of a first connecting tube according to the present invention;
FIG. 5 is an enlarged view of the portion A of FIG. 4 in accordance with the present invention;
fig. 6 is a schematic view of a connection structure between a lower reinforcement bar and a first extension bar according to the present invention;
FIG. 7 is an enlarged view of the portion B of FIG. 6 in accordance with the present invention;
fig. 8 is a schematic view showing a connection structure of the upper reinforcing steel bar and the second extension bar in the present invention.
In the figure: 1. a sleeve body; 2. lower reinforcing steel bars; 3. a reinforcing steel bar is arranged; 4. a grouting port; 5. a slurry outlet; 6. a first introduction plate; 7. a second introduction plate; 8. a first connecting cylinder; 9. a second connecting cylinder; 10. a first clamping block; 11. a first clamping groove; 12. a first fitting tube; 13. a second fitting tube; 14. a fixing groove; 15. a clamp; 16. a positioning ring; 17. a positioning groove; 18. a positioning plate; 19. a threaded rod; 20. a fixing member; 21. a first extension bar; 22. a second extension bar; 23. a protrusion; 24. a hook; 25. a first reinforcing rib; 26. a second reinforcing rib; 27. a first through groove; 28. a second through slot; 29. a first reinforcing groove; 30. and a second reinforcing groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The combined steel bar grouting sleeve structure further comprises a detachable guide-in structure which is arranged at the top of the sleeve body 1 and used for positioning the upper steel bar 3, the upper steel bar 3 and the lower steel bar 2 are coaxial, the detachable guide-in structure comprises a first guide-in plate 6 and a second guide-in plate 7 which are symmetrically arranged, the first guide-in plate 6 and the second guide-in plate 7 are combined to be in a funnel shape, and the first guide-in plate 6 and the second guide-in plate 7 are detachably connected.
The combined steel bar grouting sleeve structure further comprises a first connecting structure used for connecting the lower steel bar 2, the first connecting structure comprises a first connecting cylinder 8, the first connecting cylinder 8 is fixedly connected to the bottom of the inner wall of the sleeve body 1, first internal threads are fixedly connected to the inner wall of the first connecting cylinder 8, first external threads are fixedly connected to the middle of the outer surface of the lower steel bar 2, the first internal threads are matched with the first external threads, and the top of the lower steel bar 2 is deep into the sleeve body 1.
The combined steel bar grouting sleeve structure further comprises a second connecting structure used for connecting the upper steel bar 3, the second connecting structure comprises a second connecting cylinder 9, the second connecting cylinder 9 is fixedly connected to the top of the inner wall of the sleeve body 1, second internal threads are fixedly connected to the inner wall of the second connecting cylinder 9, second external threads are fixedly connected to the middle of the outer surface of the upper steel bar 3, the second internal threads are matched with the second external threads, and the bottom of the upper steel bar 3 is deep into the sleeve body 1.
Specifically, the first leading-in board 6 is close to first fixture block 10 of fixedly connected with in the 7 one side of second leading-in board, first draw-in groove 11 has been seted up in the 7 one side of second leading-in board is close to first leading-in board 6, first fixture block 10 and first draw-in groove 11 joint, the first laminating pipe 12 of 6 bottom fixedly connected with of first leading-in board, the 7 bottom fixedly connected with second laminating pipe 13 of second leading-in board, first laminating pipe 12 and second laminating pipe 13 set up in sleeve body 1 both sides respectively.
Specifically, fixed slot 14 has all been seted up in first laminating pipe 12 outside and the second laminating pipe 13 outside, the inside fixedly connected with clamp 15 of fixed slot 14, the inside bolt that is equipped with of clamp 15, first laminating pipe 12 passes through clamp 15 fixed connection with second laminating pipe 13.
Specifically, the inner walls of the first guide-in plate 6 and the second guide-in plate 7 are fixedly connected with a positioning plate 18, the top of the outer surface of the sleeve body 1 is provided with a positioning groove 17, the inner walls of the first fitting pipe 12 and the second fitting pipe 13 are fixedly connected with a positioning ring 16, and the positioning ring 16 is matched with the positioning groove 17.
Specifically, still including being used for increasing the stability of reinforcing bar 3 and setting up the stable structure on first leading-in board 6 and second leading-in board 7, stable structure includes two threaded rods 19, two threaded rods 19 respectively with first leading-in board 6 and second leading-in board 7 threaded connection, threaded rods 19 one end rotates and is connected with mounting 20, mounting 20 inner wall and reinforcing bar surface phase-match, mounting 20 inner wall fixedly connected with slipmat.
When the installation, cup joint first connecting cylinder 8 at steel bar 2 top down, make first connecting cylinder 8 and steel bar 2 threaded connection down through first internal thread and first external screw thread, then sleeve body 1 connects at steel bar 2 top down, afterwards through the location leading-in effect of first leading-in board 6 and second leading-in board 7, conveniently go up steel bar 3 and the coaxial setting of steel bar 2 down inside inserting sleeve body 1, simultaneously, make last steel bar 3 and second connecting cylinder 9 threaded connection through second internal thread and second external screw thread, make last steel bar 3 and sleeve body 1 be connected, still further fix a position last steel bar 3 simultaneously, make last steel bar 3 and steel bar 2 coaxial setting down, and prevent when the grout, go up steel bar 3 and take place the skew afterwards, carry out the grout again, connect last steel bar 3 and steel bar 2 down through the connected mode of screw thread mechanical connection and sleeve grout connection combination, the connection is more stable, it is more firm. After grouting, the first guide-in plate 6 and the second guide-in plate 7 are removed for the next use.
Through with first fixture block 10 and first draw-in groove 11 joint, be convenient for first leading-in board 6 and the leading-in board 7 of second are connected, simultaneously convenient to detach, through being equipped with first laminating pipe 12 and second laminating pipe 13, be convenient for with first leading-in board 6 and the leading-in board 7 fixed mounting of second at sleeve body 1 surface, and improve first leading-in board 6 and the leading-in board 7 stability of second, place clamp 15 inside fixed slot 14, afterwards fix first laminating pipe 12 and second laminating pipe 13 at sleeve body 1 surface through clamp 15, when installing first laminating pipe 12 and second laminating pipe 13, with holding ring 16 and holding tank 17 joint, further improve the connection stability of first laminating pipe 12 and second laminating pipe 13 and sleeve body 1, prevent that first laminating pipe 12 and second laminating pipe 13 position from taking place to rotate in the use. Through being equipped with locating plate 18, be convenient for guide go up reinforcing bar 3 and the coaxial setting of lower reinforcing bar 2, be connected the back with last reinforcing bar 3 and second connecting cylinder 9, rotate threaded rod 19, make the mounting 20 of last reinforcing bar 3 both sides press from both sides tight last reinforcing bar 3, improve the stability of last reinforcing bar 3 again, prevent to go up the position emergence skew of reinforcing bar 3 in the grout in-process.
as distinct from embodiment 1, referring to fig. 2-8, the top of the lower steel bar 2 is fixedly connected with a first extension bar 21, the bottom of the upper steel bar 3 is fixedly connected with a second extension bar 22, the cross-sectional shapes of the first extension bar 21 and the second extension bar 22 are arc-shaped, the outer surfaces of the first extension bar 21 and the second extension bar 22 are fixedly connected with protrusions 23, and the tops of the first extension bar 21 and the bottom of the second extension bar 22 are fixedly connected with hooks 24.
Specifically, still including the first additional strengthening who is used for strengthening upper bar 3 and lower bar 2 connection stability, first additional strengthening includes a plurality of first strengthening rib 25 and second strengthening rib 26, first strengthening rib 25 and the equal fixed connection of second strengthening rib 26 are at sleeve body 1 inner wall, first strengthening rib 25 and second strengthening rib 26 cross sectional shape are trapezoidal, first strengthening rib 25 vertical setting is at sleeve body 1 inner wall, second strengthening rib 26 transversely sets up at sleeve body 1 inner wall, first logical groove 27 has been seted up at first strengthening rib 25 top, second logical groove 28 has been seted up to the inside second strengthening rib 26.
Specifically, still including the second additional strengthening that is used for strengthening upper bar 3 and lower bar 2 connection stability, including a plurality of first enhancement groove 29 and second enhancement groove 30, first enhancement groove 29 and second enhancement groove 30 all set up at sleeve body 1 inner wall, first enhancement groove 29 and second enhancement groove 30 cross-sectional shape are trapezoidal, first enhancement groove 29 vertical setting is at sleeve body 1 inner wall, second enhancement groove 30 transversely sets up at sleeve body 1 inner wall.
During grouting, the connection firmness of the upper steel bars 3 and the lower steel bars 2 is improved through the first extension bars 21 and the second extension bars 22, the contact area between the first extension bars 21 and the second extension bars 22 and grouting is increased through the protrusions 23 and the hooks 24, the connection stress is increased, the first extension bars 21 and the second extension bars 22 are connected with the sleeve body 1 more firmly, during grouting, the first reinforcing ribs 25 and the second reinforcing ribs 26 are arranged on the inner wall of the sleeve body 1 vertically, the second reinforcing ribs 26 are arranged on the inner wall of the sleeve body 1 transversely, the first through grooves 27 are formed in the top of the first reinforcing ribs 25, the second through grooves 28 are formed in the second reinforcing ribs 26, the contact area between the sleeve body 1 and slurry is increased, the slurry can be caused to fill the inner part of the sleeve body 1 simultaneously, the first reinforcing grooves 29 and the second reinforcing grooves 30 are arranged on the inner wall of the sleeve body 1 vertically, the second reinforcing grooves 30 are arranged on the inner wall of the sleeve body 1 transversely, and the slurry can flow to the inner part of the first reinforcing grooves 29 and the second reinforcing grooves 30 in the grouting process, and the slurry can be tightly connected with the second reinforcing grooves 30.
s1, connecting a first connecting cylinder 8 with a lower steel bar 2 through threads, so that a sleeve body 1 is fixed at the top of the lower steel bar 2, and meanwhile, a first extension rod 21 penetrates into the sleeve body 1;
s2, clamping the positioning ring 16 with the positioning groove 17, simultaneously clamping the first clamping block 10 with the first clamping groove 11, splicing the first guide-in plate 6 and the second guide-in plate 7, tightly attaching the bottom of the positioning plate 18 to the top of the second connecting cylinder 9, and connecting the first attaching pipe 12 with the second attaching pipe 13 through the clamp 15;
s3, inserting the upper steel bar 3 into a channel formed by the first guide-in plate 6 and the second guide-in plate 7, positioning the upper steel bar 3, then connecting the upper steel bar 3 with the second connecting cylinder 9 through threads, and simultaneously enabling the first extension bar 21 to extend into the sleeve body 1 to connect the upper steel bar 3 with the sleeve body 1;
s4, grouting the inside of the sleeve body 1 through the grouting opening 4.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and 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 and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a modular reinforcing bar grout sleeve structure, includes sleeve body (1), sleeve body (1) inside is equipped with down reinforcing bar (2) and goes up reinforcing bar (3), it sets up in lower reinforcing bar (2) top to go up reinforcing bar (3), sleeve body (1) surface bottom is equipped with grout mouth (4), sleeve body (1) surface top is equipped with grout outlet (5), its characterized in that still includes:
the detachable guide structure is arranged at the top of the sleeve body (1) and used for positioning the upper steel bar (3) so that the upper steel bar (3) and the lower steel bar (2) are coaxial, and comprises a first guide plate (6) and a second guide plate (7) which are symmetrically arranged, wherein the first guide plate (6) and the second guide plate (7) are combined to be in a funnel shape, and the first guide plate (6) and the second guide plate (7) are detachably connected;
the first connecting structure is used for connecting the lower steel bar (2), and comprises a first connecting cylinder (8), wherein the first connecting cylinder (8) is fixedly connected to the bottom of the inner wall of the sleeve body (1), the inner wall of the first connecting cylinder (8) is fixedly connected with first internal threads, the middle part of the outer surface of the lower steel bar (2) is fixedly connected with first external threads, the first internal threads are matched with the first external threads, and the top of the lower steel bar (2) stretches into the sleeve body (1);
the second connecting structure is used for connecting the upper steel bar (3), the second connecting structure comprises a second connecting cylinder (9), the second connecting cylinder (9) is fixedly connected to the top of the inner wall of the sleeve body (1), the second inner thread is fixedly connected to the inner wall of the second connecting cylinder (9), the second outer thread is fixedly connected to the middle part of the outer surface of the upper steel bar (3), the second inner thread is matched with the second outer thread, and the bottom of the upper steel bar (3) is deep into the sleeve body (1).
2. The combined steel bar grouting sleeve structure according to claim 1, wherein a first clamping block (10) is fixedly connected to one side of the first guide-in plate (6) close to the second guide-in plate (7), a first clamping groove (11) is formed in one side of the second guide-in plate (7) close to the first guide-in plate (6), the first clamping block (10) is clamped with the first clamping groove (11), a first laminating pipe (12) is fixedly connected to the bottom of the first guide-in plate (6), a second laminating pipe (13) is fixedly connected to the bottom of the second guide-in plate (7), and the first laminating pipe (12) and the second laminating pipe (13) are respectively arranged on two sides of the sleeve body (1).
3. The combined steel bar grouting sleeve structure according to claim 2, wherein the outer side of the first attaching pipe (12) and the outer side of the second attaching pipe (13) are provided with fixing grooves (14), a clamp (15) is fixedly connected to the inside of the fixing grooves (14), bolts are arranged in the clamp (15), and the first attaching pipe (12) and the second attaching pipe (13) are fixedly connected through the clamp (15).
4. The combined steel bar grouting sleeve structure according to claim 3, wherein the inner walls of the first guide-in plate (6) and the second guide-in plate (7) are fixedly connected with positioning plates (18), positioning grooves (17) are formed in the top of the outer surface of the sleeve body (1), positioning rings (16) are fixedly connected to the inner walls of the first attaching pipe (12) and the second attaching pipe (13), and the positioning rings (16) are matched with the positioning grooves (17).
5. The combined steel bar grouting sleeve structure according to claim 1, further comprising a stabilizing structure for increasing stability of the upper steel bar (3) and arranged on the first guide-in plate (6) and the second guide-in plate (7), wherein the stabilizing structure comprises two threaded rods (19), the two threaded rods (19) are respectively in threaded connection with the first guide-in plate (6) and the second guide-in plate (7), one end of each threaded rod (19) is rotationally connected with a fixing piece (20), the inner wall of each fixing piece (20) is matched with the outer surface of the steel bar, and an anti-slip pad is fixedly connected with the inner wall of each fixing piece (20).
6. The combined steel bar grouting sleeve structure according to claim 4, wherein the top of the lower steel bar (2) is fixedly connected with a first extension bar (21), the bottom of the upper steel bar (3) is fixedly connected with a second extension bar (22), the cross sections of the first extension bar (21) and the second extension bar (22) are arc-shaped, the outer surfaces of the first extension bar (21) and the second extension bar (22) are fixedly connected with protrusions (23), and the tops of the first extension bar (21) and the bottoms of the second extension bar (22) are fixedly connected with hooks (24).
7. The combined steel bar grouting sleeve structure according to claim 6, further comprising a first reinforcing structure for reinforcing connection stability between the upper steel bar (3) and the lower steel bar (2), wherein the first reinforcing structure comprises a plurality of first reinforcing ribs (25) and second reinforcing ribs (26), the first reinforcing ribs (25) and the second reinforcing ribs (26) are fixedly connected to the inner wall of the sleeve body (1), the cross sections of the first reinforcing ribs (25) and the second reinforcing ribs (26) are trapezoid, the first reinforcing ribs (25) are vertically arranged on the inner wall of the sleeve body (1), and the second reinforcing ribs (26) are transversely arranged on the inner wall of the sleeve body (1).
8. The combined steel bar grouting sleeve structure according to claim 7, wherein a first through groove (27) is formed in the top of the first reinforcing rib (25), and a second through groove (28) is formed in the second reinforcing rib (26).
9. The combined steel bar grouting sleeve structure according to claim 8, further comprising a second reinforcing structure for reinforcing connection stability between the upper steel bar (3) and the lower steel bar (2), wherein the second reinforcing structure comprises a plurality of first reinforcing grooves (29) and a plurality of second reinforcing grooves (30), the first reinforcing grooves (29) and the second reinforcing grooves (30) are all formed in the inner wall of the sleeve body (1), the cross sections of the first reinforcing grooves (29) and the second reinforcing grooves (30) are trapezoid, the first reinforcing grooves (29) are vertically formed in the inner wall of the sleeve body (1), and the second reinforcing grooves (30) are transversely formed in the inner wall of the sleeve body (1).
10. A method of installing a modular reinforcing steel bar grouting sleeve structure according to any one of claims 6-9, comprising the steps of:
s1, connecting a first connecting cylinder (8) with a lower steel bar (2) through threads, so that the sleeve body (1) is fixed at the top of the lower steel bar (2), and meanwhile, the first extension rod (21) stretches into the sleeve body (1);
s2, clamping the positioning ring (16) with the positioning groove (17), clamping the first clamping block (10) with the first clamping groove (11) at the same time, splicing the first guide-in plate (6) with the second guide-in plate (7), enabling the bottom of the positioning plate (18) to cling to the top of the second connecting cylinder (9), and connecting the first attaching pipe (12) with the second attaching pipe (13) through the clamp (15);
s3, inserting the upper steel bar (3) into a channel formed by the first guide-in plate (6) and the second guide-in plate (7), positioning the upper steel bar (3), connecting the upper steel bar (3) with the second connecting cylinder (9) through threads, and simultaneously enabling the first extension rod (21) to extend into the sleeve body (1) to connect the upper steel bar (3) with the sleeve body (1);
s4, grouting the inside of the sleeve body (1) through the grouting opening (4).
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| CN116201294B (en) | 2023-07-21 |
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