CN111255162A - Semi-grouting sleeve assembly for fabricated building and construction method thereof - Google Patents
Semi-grouting sleeve assembly for fabricated building and construction method thereof Download PDFInfo
- Publication number
- CN111255162A CN111255162A CN202010167420.4A CN202010167420A CN111255162A CN 111255162 A CN111255162 A CN 111255162A CN 202010167420 A CN202010167420 A CN 202010167420A CN 111255162 A CN111255162 A CN 111255162A
- Authority
- CN
- China
- Prior art keywords
- pipe
- sleeve
- square
- steel bar
- grouting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- 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
- E04G21/14—Conveying or assembling building elements
- E04G21/142—Means in or on the elements for connecting same to handling apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a semi-grouting sleeve assembly for an assembly type building, which comprises a first reinforcing steel bar with a first external thread, a second reinforcing steel bar with a second external thread, an integrated nut bolt, a straight thread sleeve with a grout discharge hole, a semi-grouting sleeve and a square nut, wherein the semi-grouting sleeve comprises a rectangular pipe, a square-circle reducer pipe, a circular pipe, an outer-circle inner-square pipe and a grouting hole formed in the square-circle reducer pipe, one end of the rectangular pipe is expanded and gradually changed to one end of the circular pipe through the square-circle reducer pipe, the outer diameters of the circular pipe and the outer-circle inner-square pipe are the same, fourth external threads are arranged on the outer surfaces of the circular pipe and the outer-circle inner-square pipe, the outer-circle inner-square pipe is provided with a rectangular hole through which the first reinforcing steel bar passes and the square nut cannot pass, and the straight thread sleeve is provided with a first internal thread matched with the first. The invention has simple structure and low application cost, and can ensure the integral quality of the semi-grouting sleeve assembly when the sleeve is not fully grouted.
Description
Technical Field
The invention relates to the technical field of assembly type building steel bar connection, in particular to a semi-grouting sleeve assembly for an assembly type building and a construction method thereof.
Background
The grouting sleeve is a combination assembled by a specially processed sleeve, matched grouting materials and reinforcing steel bars, the quick-hardening non-shrinkage grouting materials are injected when the reinforcing steel bars are connected, the reinforcing steel bars and the sleeve are connected by virtue of the bonding and interlocking action between materials, and the grouting sleeve has the advantages of reliable performance, wide applicability, simplicity and convenience in installation and the like, and is mainly applied to reinforcement connection of prefabricated components in an assembled concrete structure and integral butt joint of a reinforcement cage in a cast-in-place concrete structure.
The grouting sleeve comprises a full grouting sleeve and a half grouting sleeve, wherein the full grouting sleeve is a grouting sleeve with two ends of a joint connected with the reinforcing steel bars in a grouting mode, the sleeve is longer than the half grouting sleeve in size and is mainly suitable for reinforcing steel bar connection of longitudinal members (walls and columns) and transverse members (beams); the semi-grouting sleeve is a grouting sleeve with one end of a joint connected in a grouting mode and the other end connected with a steel bar in a non-grouting mode, and is mainly suitable for connecting longitudinal members (walls and columns). Wherein, when half grout sleeve is used for prefabricated component connection of assembled building, because the reinforcing bar position in the component can have certain deviation, be greater than the reinforcing bar nominal diameter about 10mm usually during the design of the one end internal diameter of sleeve grout, and set up a plurality of shear force grooves in the sleeve in order to ensure to realize the firm connection of sleeve and reinforcing bar behind half grout sleeve grout, this is because grout sleeve and the grout material after the sclerosis are connected mainly through the grout material after the sclerosis and the shear force groove biography power and firm connection in the sleeve, the quantity in shear force groove is more, the sleeve is also more firm with being connected of reinforcing bar, however, because the existence in a plurality of shear force grooves, sleeve length can be elongated and easy not full in shear force groove area grout during the grout.
At present, because the sleeve grouting process is a hidden project and no better detection method exists at present, the insufficient sleeve grouting is not easy to find during construction, so that the reinforcing steel bars and the hardened grouting material cannot be firmly connected, and the overall quality of the grouting sleeve is influenced. In addition, because the inner cavity of the sleeve of the grouting part in the half grouting sleeve is far larger than the nominal diameter of the steel bar, the application cost of the sleeve, the section of the beam column and the concrete pouring difficulty of the same area can be increased when the half grouting sleeve is applied to the connection of the steel bars of prefabricated parts, so that the application cost of the fabricated building is greatly increased and needs to be further improved.
Disclosure of Invention
The invention aims to solve the technical problems and provide a technical task for perfecting and improving the defects in the prior art, and provides a semi-grouting sleeve assembly for an assembly type building and a construction method thereof, which are used for solving the problems that the semi-grouting sleeve in the existing assembly type building is high in application cost, difficult to guarantee grouting quality, high in pouring difficulty and the like.
Therefore, the invention adopts the following technical scheme: a half grouting sleeve assembly for an assembly type building comprises a first reinforcing steel bar provided with a first external thread, a second reinforcing steel bar provided with a second external thread, an integrated nut bolt, a straight thread sleeve provided with a grout discharge hole, a half grouting sleeve and a square nut, wherein the integrated nut bolt is provided with a third internal thread and a third external thread, the half grouting sleeve comprises a rectangular pipe, a square-circle reducer pipe, a circular pipe, an outer-circle inner square pipe and a grouting hole formed in the square-circle reducer pipe, one end of the rectangular pipe is gradually changed to one end of the circular pipe through transition expansion of the square-circle reducer pipe, the outer diameters of the circular pipe and the outer-circle inner square pipe are the same, fourth external threads are arranged on the outer surfaces of the circular pipe and the outer-circle inner square pipe, the outer-circle inner square pipe is provided with the rectangular hole through which the first reinforcing steel bar passes and the square nut cannot pass, the straight thread sleeve is provided with a first internal thread matched with the fourth external thread, the square nut is provided with a second internal thread and is used for connecting the half grouting sleeve and the integrated nut bolt after one end of the first steel bar penetrates through the rectangular hole of the half grouting sleeve sleeved on the first steel bar and then is connected with the first external thread through the second internal thread.
Further, the pipe wall thicknesses of the rectangular pipe, the square-circle reducer pipe and the circular pipe are the same.
Further, the width of the inner cavity of the rectangular pipe is 1.05-1.1 times of the diameter of the first steel bar, the length of the inner cavity of the rectangular pipe is the sum of the diameter of the first steel bar and the preset deviation, the diameter of the inner cavity of the circular pipe is the sum of the diameter of the first steel bar and the preset deviation, the width of the rectangular hole is 1.05-1.1 times of the diameter of the first steel bar, the length of the rectangular hole is the sum of the diameter of the first steel bar and the preset deviation, and the preset deviation is 8-12 mm.
Furthermore, the tensile strength of the integrated nut bolt, the straight thread sleeve, the half grouting sleeve and the square nut is greater than that of the first steel bar or that of the second steel bar.
The invention also adopts the following technical scheme: a construction method of a semi-grouting sleeve assembly for an assembly type building comprises the following steps:
s1, after the prefabricated part where the second steel bar is located is hoisted, fixedly connecting the integrated nut and bolt to the second steel bar;
s2, connecting the straight thread sleeve with the semi-grouting sleeve in a threaded manner, and rotating the straight thread sleeve to enable the straight thread sleeve to move to a preset position in a direction close to the rectangular pipe;
s3, sleeving the semi-grouting sleeve on the first steel bar, after the prefabricated part where the first steel bar is located is hoisted in place, enabling the first external thread of the first steel bar to sequentially penetrate through the long square pipe, the circular pipe and the outer circle inner square pipe and then be exposed outside the semi-grouting sleeve, and fixedly connecting the square nut with the first external thread of the first steel bar;
s4, adjusting the position of the half grouting sleeve to enable the fourth external thread of the half grouting sleeve to correspond to the third external thread of the integrated nut bolt, and rotating the straight thread sleeve to enable the straight thread sleeve to move towards the direction close to the integrated nut bolt to be fixedly connected with the third external thread of the integrated nut bolt, so that the second steel bar is firmly connected with the half grouting sleeve;
s5, filling a gap between the inner cavity of the rectangular pipe and the first steel bar with a sealing material;
and S6, grouting and maintaining to form stable connection.
Compared with the prior art, the invention has the following beneficial effects:
(1) the two ends of the semi-grouting sleeve are respectively provided with the rectangular pipe with the small diameter and the rectangular hole in the outer circle inner square pipe to meet the deviation requirement when the steel bars in the prefabricated part are connected, a large-diameter circular pipe opening is not required to be adopted, the size of the inner cavity of the semi-grouting sleeve and the outer diameter of the sleeve are greatly reduced, and the gap between the semi-grouting sleeve components which are arranged in parallel is obviously increased, so that the concrete pouring difficulty in the gap area is reduced, and the potential hazard of compactness of the poured concrete is further reduced;
(2) the half grouting sleeve is internally provided with the square-round reducer pipe with a large inside and a small outside, so that a concrete part with a large inside and a small outside is formed in the inner cavity of the reducer pipe body after the sleeve is grouted and hardened, the concrete part and the side wall of the reducer pipe body interact with each other to firmly connect the hardened grouting material with the sleeve, a plurality of shear grooves are not required to be arranged in the sleeve to realize the firm connection of the grouting material and the sleeve, the sleeve is not easy to be underfilled during grouting, the length of the sleeve and the section of a corresponding beam column are greatly reduced, the tensile strength of the half grouting sleeve is further enhanced, and the application cost of an assembly type building is reduced;
(3) the square nut penetrates through the rectangular hole at one end of the first steel bar and then is connected with the first external thread, so that the rectangular hole of the half grouting sleeve cannot penetrate through the square nut, the upper end of the half grouting sleeve cannot move towards the direction close to the integrated nut bolt after contacting with the square nut, and the square nut can bear partial tensile force when the first steel bar is pulled by utilizing the mutual constraint of the square nut and the rectangular hole, so that the overall quality of the half grouting sleeve assembly can be ensured when the sleeve is not fully grouted or the tensile property of the half grouting sleeve assembly can be further improved when the sleeve is fully grouted;
(4) the construction is more convenient and reliable, and the connection quality of the prefabricated parts is greatly improved.
Drawings
Fig. 1 is a first three-dimensional structural schematic view of a half grout sleeve assembly.
Fig. 2 is a second three-dimensional structural schematic view of a half grout sleeve assembly.
Fig. 3 is a schematic view of a first partial three-dimensional structure of a half grout sleeve assembly.
Fig. 4 is a second partial three-dimensional structural view of a half grout sleeve assembly.
Fig. 5 is a first sectional structure view of a half grout sleeve assembly.
Fig. 6 is a second sectional structural view of the half grout sleeve assembly.
Fig. 7 is a first sectional structure view of the half grouting sleeve.
Fig. 8 is a second sectional structure view of the half grouting sleeve.
Fig. 9 is a first three-dimensional structure diagram of a half grout sleeve.
Fig. 10 is a second three-dimensional structure diagram of the half grout sleeve.
Fig. 11 is a three-dimensional structural view of a straight-threaded sleeve.
Fig. 12 is a three-dimensional structure diagram of a square nut.
Fig. 13 is a schematic plan view of the first reinforcing bar.
Fig. 14 is a plan view of the second reinforcing bar.
Fig. 15 is a three-dimensional structure diagram of the integrated nut-bolt.
Fig. 16 is a schematic plan view of a rectangular tube.
FIG. 17 is a schematic plane structure diagram of the square tube with an outer circle and an inner circle.
Fig. 18 is a plan view of the installation of the square nut.
FIG. 19 is a schematic plan view of multiple types of elongated apertures.
The attached drawings are marked and described as 1-first steel bar, 2-half grouting sleeve, 3-straight thread sleeve, 4-integral nut bolt, 5-second steel bar, 6-grouting hole, 7-grout outlet, 8-square nut, 9-grouting material, 10-rectangular pipe, 11-square diameter-variable pipe, 12-round pipe, 13-fourth external thread, 14-external circular internal square pipe, 15-rectangular hole, 16-first internal thread, 17-second internal thread, 18-first external thread, 19-third internal thread, 20-third external thread, 21-second external thread and 22-second rectangular hole.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1 to 15, the present embodiment provides a fabricated semi-grouting sleeve assembly for a building, including a first steel bar 1 provided with a first external thread 18, a second steel bar 5 provided with a second external thread 21, an integrated nut bolt 4, a straight-threaded sleeve 3 provided with a grout discharge hole 7, a semi-grouting sleeve 2, and a square nut 8, where the position of the grout discharge hole 7 is determined according to the length of the straight-threaded sleeve and the connection length of the straight-threaded sleeve and the third external thread, the integrated nut bolt 4 is provided with a third internal thread 19 matching the second external thread and a third external thread 20 matching the first internal thread, the screw connection of the third internal thread 19 with the second external thread 21 of the second steel bar 5 enables the fixed connection of the second steel bar with the integrated nut bolt, the screw connection of the third external thread 20 with the straight-threaded sleeve 3 enables the fixed connection of the integrated nut bolt with the straight-threaded sleeve, and the second steel bar 5 is firmly connected with the semi-grouting sleeve through the integrated nut and bolt 4 and the straight thread sleeve 3.
It should be noted that the first steel bars 1 and the second steel bars 5 are steel bars in the prefabricated part, and the prefabricated part cannot move after being hoisted.
The straight-thread sleeve 3 is provided with a first internal thread 16 matched with the fourth external thread 13 and the third external thread 20 and used for connecting the half-grouting sleeve and the integrated nut bolt in a threaded mode, namely the straight-thread sleeve 3 is provided with the first internal thread 16, the first internal thread 16 is respectively matched with the fourth external thread and the third external thread to enable the straight-thread sleeve to be partially in threaded connection with the half-grouting sleeve, and the other part of the straight-thread sleeve is in threaded connection with the integrated nut bolt, wherein the parameters of the first external thread and the third external thread are preferably identical, and the third external thread is preferably completely in threaded connection with the first internal thread.
The half grouting sleeve 2 comprises an integrally formed rectangular pipe 10, a square-circle reducer pipe 11, a circular pipe 12, an outer-circle inner-side pipe 14 and a grouting hole 6 arranged on the square-circle reducer pipe, wherein the square-circle reducer pipe 11 is a gradually-changed pipe body which is gradually enlarged and gradually changed into a circular shape from one end of the rectangular pipe inwards (or upwards) along the axis direction, one end of the rectangular pipe 10 is gradually enlarged and gradually changed into one end of the circular pipe through the transition of the square-circle reducer pipe, namely the lower end of the square-circle reducer pipe is communicated with the upper end of the rectangular pipe, the upper end of the square-circle reducer pipe is communicated with the lower end of the circular pipe, the axial cross-sectional area of an inner cavity at the lower end is smaller than that of an inner cavity at the upper end (namely the axial cross-sectional area of the inner cavity of the rectangular pipe is smaller than that of the inner cavity of the circular pipe), the outer diameters of the circular pipe 12 and the outer-, the outer and inner square tubes 14 are provided with rectangular holes 15 through which the first reinforcing steel bars can pass and through which the square nuts cannot pass, as shown in fig. 18, the maximum diameter d of the axial cross section of the first reinforcing steel bars is smaller than the minimum side length K2 of the rectangular holes, and the minimum side length (the minimum value of L1 and L2) of the axial cross section of the square nuts is larger than the minimum side length K2 of the rectangular holes; the shape size of rectangular hole 15 with the inner chamber of rectangular pipe 10 corresponds, and the first reinforcing bar can both be followed rectangular hole department and worn out after penetrating in the arbitrary position of rectangular pipe inner chamber promptly to make the first external screw thread of first reinforcing bar be located half grout sleeve outside.
It should be noted that, in this embodiment, the shapes of the inner cavities of the first rectangular hole and the rectangular pipe are not limited to the common rectangular hole, and a rectangular hole such as a round-corner rectangular hole and an oblong hole for the movement of the reinforcing steel bar in a single direction may also be adopted, as shown in fig. 19.
The square nut 8 is provided with a second internal thread 17 matching the first external thread 18 for
One end (a first external thread part) of the first steel bar penetrates through the rectangular hole of the semi-grouting sleeve sleeved on the first steel bar and then is connected with the first external thread through the second internal thread so that the rectangular hole of the semi-grouting sleeve cannot penetrate through
And the square nut, so that the upper end of the half grouting sleeve can not move towards the direction close to the integrated nut bolt after contacting with the square nut, as shown in fig. 5, after the square nut is connected with the first external thread of the first steel bar, the upper end of the half grouting sleeve can not move upwards after contacting with the square nut.
It should be noted that, since the square nut is mainly used to make the upper end of the half-grouting sleeve contact with the square nut after being connected with the first external thread and then cannot move in the direction close to the integrated nut bolt, other nuts or components, such as a hexagon nut, may also be used in this embodiment.
Preferably, the pipe wall thicknesses of the rectangular pipe, the square-circle reducer pipe and the circular pipe are the same.
Preferably, the shaft sectional area of the lumen of the rectangular tube is smaller than the shaft sectional area of the lumen of the circular tube, and the shaft sectional area of the rectangular hole is smaller than the shaft sectional area of the lumen of the circular tube.
Preferably, as shown in fig. 16 and 17, the width K1 of the inner cavity of the rectangular tube is 1.05 to 1.1 times of the diameter of the first steel bar, the length C1 is the sum of the diameter of the first steel bar and a preset deviation, the diameter of the inner cavity of the circular tube is the sum of the diameter of the first steel bar and the preset deviation, the width K2 of the rectangular hole is 1.05 to 1.1 times of the diameter of the first steel bar, the length C2 is the sum of the diameter of the first steel bar and the preset deviation, and the preset deviation is 8 to 12 mm.
Preferably, the connection length of the straight thread sleeve and the third external thread, the connection length of the straight thread sleeve and the fourth external thread, and the connection length of the second external thread and the third internal thread may be designed and determined according to the tensile strength requirement of the grouting sleeve.
Preferably, the tensile strength of the integrated nut bolt, the straight threaded sleeve, the half grouting sleeve and the square nut is greater than that of the first steel bar or that of the second steel bar.
In this embodiment, the connection between the second steel bar and the half grouting sleeve is realized by the threaded connection between the second steel bar and the integral nut-bolt and the threaded connection between the straight threaded sleeve and the integral nut-bolt, on one hand, the connection between the first steel bar and the half grouting sleeve is realized by adopting a square-round reducer pipe with a large inside and a small outside in the half grouting sleeve, so that a concrete part with a large inside and a small outside is formed in an inner cavity of the reducer pipe after the sleeve is grouted and hardened, the concrete part interacts with the side wall of the reducer pipe to firmly connect the hardened grouting material and the sleeve (the stress area in the tensile direction is obviously larger than that of the grouting sleeve adopting a plurality of shear grooves), a plurality of shear grooves do not need to be arranged in the sleeve to realize the firm connection between the grouting material and the sleeve, the grouting sleeve is not easy to be insufficient during grouting, on the other hand, the first external thread of the first steel bar penetrates through the rectangular hole and then is connected with the square nut which cannot penetrate the rectangular hole to realize And tension force is applied to the sleeve, so that the overall quality of the half-grouting sleeve assembly can be guaranteed when grouting is not full, or the tensile property of the half-grouting sleeve assembly is further improved when grouting is full.
On the basis of the semi-grouting sleeve assembly for the fabricated building, the embodiment also provides a construction method of the semi-grouting sleeve assembly for the fabricated building, which comprises the following steps:
s1, after the prefabricated part where the second steel bar is located is hoisted, fixedly connecting the integrated nut and bolt to the second steel bar;
s2, connecting the straight thread sleeve with the semi-grouting sleeve in a threaded manner, and rotating the straight thread sleeve to enable the straight thread sleeve to move to a preset position in a direction close to the rectangular pipe, wherein the straight thread sleeve is preferably completely sleeved on the fourth external thread;
s3, sleeving a half grouting sleeve on a first steel bar, after a prefabricated part where the first steel bar is located is hoisted in place, enabling a first external thread of the first steel bar to sequentially penetrate through a long square pipe, a circular pipe and an outer circle inner square pipe and then be exposed outside the half grouting sleeve, and fixedly connecting a square nut with the first external thread of the first steel bar, wherein after the first steel bar is hoisted, the upper end of the first steel bar is spaced from the lower end of a hoisted second steel bar by a preset distance, the preset distance is required to ensure that the square nut is convenient to operate, and when the half grouting sleeve is sleeved on the first steel bar, temporary fixing measures such as adhesive tape fixing, iron wire binding and the like are preferably added to prevent the half grouting sleeve from falling off when the component where the first steel bar is hoisted;
s4, adjusting the position of the half grouting sleeve to enable the fourth external thread of the half grouting sleeve to correspond to the third external thread of the integrated nut bolt, and rotating the straight thread sleeve to enable the straight thread sleeve to move towards the direction close to the integrated nut bolt to be fixedly connected with the third external thread of the integrated nut bolt, so that the second steel bar is firmly connected with the half grouting sleeve, wherein after the straight thread sleeve is connected with the third external thread, a grout discharging hole is ensured to be positioned in a region between the upper end of the first steel bar and the lower end of the second steel bar;
s5, filling a gap between the inner cavity of the rectangular pipe and the first steel bar with a sealing material, wherein the sealing material can be polyurethane foam rubber or a special sealing ring;
and S6, grouting and maintaining to form stable connection.
The scope of the present invention is not limited to the above description, and any other products with different shapes, structures and material choices, which are similar or similar to the present invention, are within the scope of the present invention.
Claims (5)
1. The semi-grouting sleeve component for the assembly type building is characterized by comprising a first reinforcing steel bar (1) provided with a first external thread (18), a second reinforcing steel bar (5) provided with a second external thread (21), an integrated nut bolt (4), a straight thread sleeve (3) provided with a grout discharge hole (7), a semi-grouting sleeve (2) and a square nut (8), wherein the integrated nut bolt (4) is provided with a third internal thread (19) and a third external thread (20), the semi-grouting sleeve (2) comprises a rectangular pipe (10), a square reducing pipe (11), a circular pipe (12), an outer circular inner square pipe (14) and a grouting hole (6) formed in the square reducing pipe, one end of the rectangular pipe (10) is transitionally expanded to one end of the circular pipe through the square reducing pipe, the outer diameters of the circular pipe (12) and the outer circular inner square pipe (14) are the same, the outer surface of the square bolt is provided with fourth external threads (13), the outer circle inner square tube (14) is provided with a rectangular hole (15) which is used for a first reinforcing steel bar to pass through and a square nut cannot pass through, the straight thread sleeve (3) is provided with a first internal thread (16) matched with the fourth external threads and the third external threads and used for connecting the half grouting sleeve and the integrated nut bolt, and the square nut (8) is provided with second internal threads (17) and used for connecting the second internal threads with the first external threads after one end of the first reinforcing steel bar passes through the rectangular hole of the half grouting sleeve sleeved on the first reinforcing steel bar.
2. The prefabricated structural grout sleeve assembly of claim 1, wherein the rectangular pipe, the square and round tapered pipe and the round pipe have the same pipe wall thickness.
3. The assembly-type semi-grouting sleeve assembly for construction according to claim 1 or 2, wherein the width of the inner cavity of the rectangular pipe is 1.05 to 1.1 times the diameter of the first reinforcing bar, the length is the sum of the diameter of the first reinforcing bar and a preset deviation, the diameter of the inner cavity of the circular pipe is the sum of the diameter of the first reinforcing bar and the preset deviation, the width of the rectangular hole is 1.05 to 1.1 times the diameter of the first reinforcing bar, the length is the sum of the diameter of the first reinforcing bar and the preset deviation, and the preset deviation is 8 to 12 mm.
4. The fabricated semi-grouting sleeve assembly for a building according to claim 1 or 2, wherein the tensile strength of the integrated nut bolt, the straight-threaded sleeve, the semi-grouting sleeve and the square nut is greater than that of the first reinforcing steel bar or that of the second reinforcing steel bar.
5. A construction method of the semi-grouting sleeve assembly for fabricated construction according to any one of claims 1 to 4, comprising the steps of:
s1, after the prefabricated part where the second steel bar is located is hoisted, fixedly connecting the integrated nut and bolt to the second steel bar;
s2, connecting the straight thread sleeve with the semi-grouting sleeve in a threaded manner, and rotating the straight thread sleeve to enable the straight thread sleeve to move to a preset position in a direction close to the rectangular pipe;
s3, sleeving the semi-grouting sleeve on the first steel bar, after the prefabricated part where the first steel bar is located is hoisted in place, enabling the first external thread of the first steel bar to sequentially penetrate through the long square pipe, the circular pipe and the outer circle inner square pipe and then be exposed outside the semi-grouting sleeve, and fixedly connecting the square nut with the first external thread of the first steel bar;
s4, adjusting the position of the half grouting sleeve to enable the fourth external thread of the half grouting sleeve to correspond to the third external thread of the integrated nut bolt, and rotating the straight thread sleeve to enable the straight thread sleeve to move towards the direction close to the integrated nut bolt to be fixedly connected with the third external thread of the integrated nut bolt, so that the second steel bar is firmly connected with the half grouting sleeve;
s5, filling a gap between the inner cavity of the rectangular pipe and the first steel bar with a sealing material;
and S6, grouting and maintaining to form stable connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167420.4A CN111255162A (en) | 2020-03-11 | 2020-03-11 | Semi-grouting sleeve assembly for fabricated building and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167420.4A CN111255162A (en) | 2020-03-11 | 2020-03-11 | Semi-grouting sleeve assembly for fabricated building and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111255162A true CN111255162A (en) | 2020-06-09 |
Family
ID=70941892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010167420.4A Withdrawn CN111255162A (en) | 2020-03-11 | 2020-03-11 | Semi-grouting sleeve assembly for fabricated building and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111255162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894207A (en) * | 2020-07-30 | 2020-11-06 | 乐昌市住宅建筑工程有限公司 | Grouting sleeve for assembly type building construction and mounting method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101456055B1 (en) * | 2014-03-27 | 2014-11-04 | 김찬수 | Rebar coupler and method for coupling rebar |
| CN104264908A (en) * | 2014-09-12 | 2015-01-07 | 中国中建设计集团有限公司 | Precast concrete members connected by locking and anchoring nuts and grouting variable diameter sleeve, prefabricated concrete member and manufacturing method of prefabricated concrete member |
| CN105518235A (en) * | 2013-09-09 | 2016-04-20 | 金龙根 | Socket fastening-type reinforcing bar connector using binding end member |
| CN108252458A (en) * | 2018-03-20 | 2018-07-06 | 浙江省建筑科学设计研究院有限公司 | The cast-in-place connection of bean column node precast beam reinforced bar half grout sleeve component and its application |
| CN109339345A (en) * | 2018-11-16 | 2019-02-15 | 深圳海龙建筑科技有限公司 | A kind of non-grout sleeve for the connection of prefabricated reinforced concrete pendant reinforcing bar |
-
2020
- 2020-03-11 CN CN202010167420.4A patent/CN111255162A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105518235A (en) * | 2013-09-09 | 2016-04-20 | 金龙根 | Socket fastening-type reinforcing bar connector using binding end member |
| KR101456055B1 (en) * | 2014-03-27 | 2014-11-04 | 김찬수 | Rebar coupler and method for coupling rebar |
| CN104264908A (en) * | 2014-09-12 | 2015-01-07 | 中国中建设计集团有限公司 | Precast concrete members connected by locking and anchoring nuts and grouting variable diameter sleeve, prefabricated concrete member and manufacturing method of prefabricated concrete member |
| CN108252458A (en) * | 2018-03-20 | 2018-07-06 | 浙江省建筑科学设计研究院有限公司 | The cast-in-place connection of bean column node precast beam reinforced bar half grout sleeve component and its application |
| CN109339345A (en) * | 2018-11-16 | 2019-02-15 | 深圳海龙建筑科技有限公司 | A kind of non-grout sleeve for the connection of prefabricated reinforced concrete pendant reinforcing bar |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894207A (en) * | 2020-07-30 | 2020-11-06 | 乐昌市住宅建筑工程有限公司 | Grouting sleeve for assembly type building construction and mounting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2724176C1 (en) | Composite deformable rock anchor with improved range of deformations | |
| CN102116075B (en) | Novel joint prepared from cement grout and steel bars | |
| CN111119410A (en) | Column splicing structure and method suitable for reinforced concrete assembled structure | |
| US11718990B2 (en) | Rebar anchoring method | |
| CN205348589U (en) | One end extrusion anchored half grout sleeve steel bar connection connect | |
| KR101328078B1 (en) | Sleeve usde for fixing reinforcing bar | |
| CN111255162A (en) | Semi-grouting sleeve assembly for fabricated building and construction method thereof | |
| CN108412134B (en) | Mixed grouting sleeve and prefabricated shear wall thereof | |
| CN111236541A (en) | Full grouting sleeve assembly for connecting concrete prefabricated parts and construction method thereof | |
| JP2014227800A (en) | Joining structure | |
| JP6236974B2 (en) | Ground anchor and method for constructing ground anchor | |
| CN108915158B (en) | Separated combined grouting sleeve and connecting method | |
| JP2019082027A (en) | Reinforced joint, reinforced steel assembly and precast reinforced concrete body | |
| KR101734127B1 (en) | Precast reinforced concrete slab structure | |
| TWI809329B (en) | Bar anchoring system and method | |
| JP7261658B2 (en) | Method for joining precast concrete members | |
| CN213449167U (en) | Screw thread clip formula steel bar connection spare | |
| JP6636275B2 (en) | Anchor bolt and method of construction of anchor bolt | |
| CN109826323B (en) | Flexible high-strength connecting rib and assembly method thereof | |
| CN111206723A (en) | Prefabricated component steel bar connecting structure of prefabricated building and connecting method thereof | |
| KR200349643Y1 (en) | coupling structure of steel reinforcement | |
| CN112726965A (en) | Detachable assembly type prefabricated floor slab steel bar connecting device, structure and method | |
| WO2021014616A1 (en) | Steel reinforced joint, steel reinforced assembly, and precast steel reinforced concrete body | |
| JP2011241625A (en) | Joint structure of members, building, and joint method of members | |
| CN110777946A (en) | Prefabricated assembled concrete structure mosaic structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200609 |
|
| WW01 | Invention patent application withdrawn after publication |