CN118048990B - Non-bearing prefabricated shear wall connection structure and construction method - Google Patents
Non-bearing prefabricated shear wall connection structure and construction method Download PDFInfo
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- CN118048990B CN118048990B CN202410456172.3A CN202410456172A CN118048990B CN 118048990 B CN118048990 B CN 118048990B CN 202410456172 A CN202410456172 A CN 202410456172A CN 118048990 B CN118048990 B CN 118048990B
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- 238000010276 construction Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 167
- 239000010959 steel Substances 0.000 claims abstract description 167
- 230000002787 reinforcement Effects 0.000 claims abstract description 61
- 238000009434 installation Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The invention discloses a non-bearing precast shear wall connection structure and a construction method, which relate to the technical field of building construction, wherein a lower chamber is formed on the upper side of a lower precast member, and an upper chamber is formed on the lower side of an upper precast member, and comprises a reinforcement cage, a steel upright rod and a driving piece, wherein: the steel reinforcement cage is movably arranged in the lower-layer cavity, the lower end of the steel upright rod is horizontally and slidably arranged along the radial direction of the steel reinforcement cage, and the driving piece is used for adjusting the radial position of the steel upright rod in the steel reinforcement cage; when the steel reinforcement cage is installed, the upper end of the steel upright rod can be smoothly inserted into the upper cavity according to the circumferential angle of the steel reinforcement cage and the radial position of the steel upright rod in the steel reinforcement cage; according to the invention, the steel upright rods are adjusted in a certain range through the two axial directions of the circumferential shaft and the radial shaft, so that the smooth butt joint of the positions of the steel upright rods and the upper chamber is realized, and the steel upright rods are prevented from bending.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a non-bearing prefabricated shear wall connection structure and a construction method.
Background
At present, a non-bearing shear wall adopts vertical grouting sleeve connection, the sleeve interval is not more than 600mm, because the allowable deviation of a sleeve connection mode is only 5mm, but the pre-buried deviation of the steel bars on site is more than 10mm, so that the steel bars of an upper-layer prefabricated part and a lower-layer prefabricated part cannot be smoothly butted, hoisting cannot be completed, the condition of bending the steel bars in the process of hoisting at present influences the hoisting speed, and because the steel bars are askew, the steel bars can be clung to the sleeve, the grouting material wrapping thickness of the steel bars is insufficient when grouting is caused, and the engineering quality is influenced.
Disclosure of Invention
The invention aims to provide a non-bearing precast shear wall connection structure and a construction method, which solve the problem that hoisting of a precast member cannot be successfully completed due to position deviation of reinforcing steel bars.
The invention solves the technical problems through the following technical scheme that the upper side of the lower-layer prefabricated part is provided with a lower-layer cavity, and the lower side of the upper-layer prefabricated part is provided with an upper-layer cavity, and is characterized in that: including steel reinforcement cage, steel pole setting and driving piece, wherein:
The steel reinforcement cage is movably arranged in the lower-layer cavity, the lower end of the steel upright rod is horizontally and slidably arranged along the radial direction of the steel reinforcement cage, and the driving piece is used for adjusting the radial position of the steel upright rod in the steel reinforcement cage;
During installation, the circumferential angle of the steel reinforcement cage and the radial position of the steel upright rod in the steel reinforcement cage are adjusted so as to realize that the upper end of the steel upright rod can be smoothly inserted into the upper-layer cavity.
Preferably, a plurality of sliding bars are fixed in the reinforcement cage, and the lower ends of the steel upright bars are slidably arranged on the sliding bars.
Preferably, the driving piece comprises a first spring, a steel wire rope, a pulley and a locking structure; wherein:
The steel reinforcement cage is internally provided with a vertical rod, the first spring is arranged between the vertical rod and the steel vertical rod, one end of the steel wire rope is fixed with the steel vertical rod, the other end of the steel wire rope penetrates through the locking structure, the locking structure is used for fixing the steel wire rope, and the pulley is arranged in the steel reinforcement cage and used for guiding the steel wire rope to turn; the outer end of the steel wire rope is pulled or loosened and matched with the acting force of the first spring, so that the radial position of the steel upright rod in the steel reinforcement cage is adjusted.
Preferably, the locking structure comprises a mounting block fixed on the vertical rod, two vertical blocks and a bolt; wherein:
the installation block is provided with a through hole, the steel wire rope penetrates through the through hole, the two vertical blocks are fixed on the installation block, the bolt is connected to one of the vertical blocks in a screwed mode, and the steel wire rope is abutted and fixed through screwing the bolt.
Preferably, the upper end of the upper chamber is provided with a grouting hole.
Preferably, a plurality of protruding rods are fixed on the surface of the steel upright rods positioned in the reinforcement cage.
Preferably, a plurality of reinforcing members are arranged at the upper end of the steel upright rod, and each reinforcing member comprises a groove, a turnover supporting rod and a second spring; wherein:
the recess is seted up in the surface of steel pole setting, the upper end of upset butt pole is rotated through the pivot and is installed in the recess, the second spring is installed between recess inner wall and upset butt pole, makes the upset butt pole is the slope setting.
Preferably, the maximum inclination angle of the overturning supporting rod is 40-60 degrees, and the horizontal span of the overturning supporting rod at the maximum inclination angle is larger than the radius of the upper chamber.
Preferably, the plurality of reinforcements are arranged in two rows, and the two rows of reinforcements are oppositely distributed.
The invention also discloses a construction method of the non-bearing prefabricated shear wall connection structure, which comprises the following steps:
step one: prefabricating a lower-layer prefabricated part and an upper-layer prefabricated part, and forming a lower-layer cavity and an upper-layer cavity on the lower-layer prefabricated part and the upper-layer prefabricated part respectively;
Step two: after the lower-layer prefabricated part is installed, hoisting the steel reinforcement cage into the lower-layer chamber, positioning the steel upright rods on the connecting line of the circle centers of the lower-layer chamber and the upper-layer chamber, and adjusting the radial positions of the steel upright rods in the steel reinforcement cage by pulling or loosening the outer end parts of the steel wire ropes so that the positions of the steel upright rods correspond to the positions of the upper-layer chamber, and then locking the steel wire ropes through a locking structure;
Step three: hoisting the upper-layer prefabricated part to the upper side of the lower-layer prefabricated part, enabling the steel upright rod to vertically correspond to the upper-layer cavity, and then vertically moving the upper-layer prefabricated part downwards, namely inserting the upper end of the steel upright rod into the upper-layer cavity;
step four: filling concrete is poured into the upper layer cavity and the lower layer cavity through grouting holes.
Compared with the prior art, the invention has the beneficial effects that:
1. The steel upright rods are adjusted in a certain range through the two axial directions of the circumferential shaft and the radial shaft, so that the smooth butt joint of the positions of the steel upright rods and the upper chamber is realized, and the steel upright rods are prevented from bending;
2. Grouting is performed in the upper-layer cavity and the lower-layer cavity through the grouting holes, and the grouting material of the steel bar can be prevented from being coated with insufficient thickness due to the fact that the steel upright rod is located at the center of the upper-layer cavity.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
fig. 2 is a schematic diagram of a front view of the reinforcement cage of fig. 1;
fig. 3 is a schematic top view of the reinforcement cage of fig. 1;
Fig. 4 is a schematic diagram of a front view of the fastener shown in fig. 2.
The figures represent the numbers:
1-lower layer prefabricated parts; 11-a lower chamber; 2-upper layer prefabricated parts; 21-an upper chamber; 22-grouting holes; 3-a reinforcement cage; 31-a slide bar; 4-steel upright rods; 41-a convex rod; 5-a driving member; 51-pulley; 52-wire rope; 53-locking structure; 531-vertical blocks; 532-bolts; 533-mounting block; 54-a first spring; 6-reinforcement; 61-grooves; 62-turning the supporting rod; 63-a second spring.
Detailed Description
The above and further technical features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example 1
The embodiment provides a technical scheme: 1-2, lower-layer chamber 11 is offered to the upside of lower floor prefabricated component 1, and upper-layer chamber 21 has been offered to the downside of upper-layer prefabricated component 2, and lower-layer chamber 11 and upper-layer chamber 21's quantity is set for as required, and lower-layer chamber 11 and upper-layer chamber 21's cross section are circular structure, and lower-layer chamber 11 and upper-layer chamber 21's inner wall all are provided with the sleeve, and grouting hole 22 has all been offered to the upper end of every upper-layer chamber 21 for pour into concrete.
The connecting structure comprises a steel reinforcement cage 3, a steel upright rod 4 and a driving piece 5, wherein the cross section of the steel reinforcement cage 3 is of a circular structure, the steel reinforcement cage 3 is movably installed in a lower chamber 11, namely, the outer diameter of the steel reinforcement cage 3 is slightly smaller than the inner diameter of the lower chamber 11, so that the steel reinforcement cage 3 can be stably placed in the lower chamber 11, and the steel reinforcement cage 3 is placed in the lower chamber 11, and the steel upright rod 4 is positioned on the connecting line of the center of the steel reinforcement cage 3 and the center of the upper chamber 21 by adjusting the installation circumferential angle of the steel reinforcement cage 3 after observation, so that the cross section of the upper chamber 21 is larger than the cross section of the steel upright rod 4;
the lower extreme of steel pole setting 4 is along the radial horizontal sliding mounting of steel reinforcement cage 3, and specifically is: a plurality of sliding rods 31 are fixed in the reinforcement cage 3, the sliding rods 31 are arranged along the radial direction of the steel upright rods 4, corresponding sliding holes are formed in the steel upright rods 4, and the sliding rods 31 penetrate through the sliding holes so as to realize that the lower ends of the steel upright rods 4 are slidably arranged on the sliding rods 31;
the upper end of the steel upright rod 4 extends out of the lower chamber 11 and is positioned in the upper chamber 21 after being installed, the driving piece 5 is used for adjusting the radial position of the steel upright rod 4 in the steel reinforcement cage 3, a plurality of protruding rods 41 are fixed on the surface of the steel upright rod 4 positioned in the steel reinforcement cage 3, and the protruding rods 41 can increase the stability of the steel upright rod 4.
During installation, according to observed data, when hoisting steel reinforcement cage 3 enters lower floor's cavity 11, adjust the circumference angle of steel reinforcement cage 3 promptly, make steel pole setting 4 be located lower floor's cavity 11 and upper strata cavity 21 centre of a circle on the connecting wire, rethread driving piece 5 adjusts the radial position of steel pole setting 4 in steel reinforcement cage 3, and then adjust steel pole setting 4 in a certain extent through two axial of circumference axle and radial axle, this governing mode, can make the flexibility of the position adjustment of steel pole setting 4, in order to ensure that steel pole setting 4 can correspond with the position of upper strata cavity 21, and peg graft steel pole setting 4 in the middle in upper strata cavity 21, avoid steel pole setting 4 crooked, at last through grouting hole 22 in upper strata cavity 21 and lower floor's cavity 11, because steel pole setting 4 is located the central position of upper strata cavity 21, can avoid the not enough problem of grout parcel thickness of reinforcing bar.
Example two
The present embodiment is further optimized based on the foregoing embodiment, and the same parts as the foregoing technical solutions will not be described herein, as shown in fig. 2-3, and in order to better implement the present invention, the following arrangement mode is specifically adopted: the driving member 5 comprises a first spring 54, a wire rope 52, a pulley 51 and a locking structure 53; the steel reinforcement cage 3 is internally provided with a vertical rod, the first spring 54 is arranged between the vertical rod and the steel upright rod 4, the first spring 54 can apply radial external thrust to the steel upright rod 4, the number of the first springs 54 is set according to the requirement, one end of the steel wire rope 52 is fixed with the steel upright rod 4, the other end of the steel wire rope 52 penetrates through the locking structure 53, the connecting end of the steel wire rope 52 can be provided with a plurality of strands, and the steel wire rope 52 is respectively connected with different vertical positions of the steel upright rod 4 so as to ensure stable pulling movement of the steel upright rod 4.
The pulley 51 is arranged on the reinforcement cage 3 and used for guiding the steel wire rope 52 to turn, so that the pulling stability of the steel wire rope 52 is ensured; the adjustment of the radial position of the steel uprights 4 in the reinforcement cage 3 is achieved by pulling or releasing the outer end of the wire rope 52 and cooperating with the force of the first spring 54.
The locking structure 53 is used for fixing the steel wire rope 52 after the steel upright rod 4 is adjusted to the corresponding position, so as to position the steel upright rod 4, and the locking structure 53 comprises a mounting block 533 fixed on the vertical rod, two upright blocks 531 and a bolt 532; the mounting blocks 533 are provided with through holes, the steel wire ropes 52 penetrate through the through holes, the two vertical blocks 531 are fixed on the mounting blocks 533, the bolts 532 are screwed on one of the vertical blocks 531, and the bolts 532 are screwed to tightly prop against the steel wire ropes 52 through the bolts 532 and the other vertical block 531, so that the steel wire ropes 52 are fixed.
Example III
The present embodiment is further optimized based on the foregoing embodiment, and the same parts as the foregoing technical solutions will not be described herein, as shown in fig. 4, and in order to better implement the present invention, the following setting manner is specifically adopted: the upper end of the steel upright rod 4 is provided with a plurality of reinforcing members 6, and each reinforcing member 6 comprises a groove 61, a turnover supporting rod 62 and a second spring 63; the recess 61 is offered in the surface of steel pole setting 4, and the upper end of upset butt pole 62 is installed in recess 61 through the pivot rotation, and second spring 63 installs between recess 61 inner wall and upset butt pole 62, because the effort of second spring 63 makes upset butt pole 62 be the slope setting, when steel pole setting 4 enters into in the upper chamber 21, upset butt pole 62 can be extruded down upset, and upset butt pole 62 and the inner wall butt of upper chamber 21, after filling concrete in upper chamber 21, the connectivity of steel pole setting 4 can be strengthened to upset butt pole 62.
The maximum tilt angle of the flip lever 62 is 40-60 deg., and the horizontal span of the flip lever 62 at the maximum tilt angle is larger than the radius of the upper chamber 21 to ensure that the flip lever 62 is pressed to flip down.
The plurality of reinforcing members 6 are arranged in two rows, and the reinforcing members 6 in two rows are oppositely distributed so as to ensure the stability of stress.
Example IV
A construction method of a non-load-bearing precast shear wall connection structure according to an embodiment one, as shown in fig. 1 to 3, includes the following steps:
step one: prefabricating a lower prefabricated part 1 and an upper prefabricated part 2 in a factory, and forming a lower chamber 11 and an upper chamber 21 on the lower prefabricated part 1 and the upper prefabricated part 2 respectively, wherein the lower chambers 11 and 12 are consistent in number and correspond to each other;
Step two: after the installation of the lower-layer prefabricated part 1 is completed at a construction site, hoisting the steel reinforcement cage 3 into the lower-layer chamber 11, positioning the steel upright rods 4 on the connecting line of the circle centers of the lower-layer chamber 11 and the upper-layer chamber 21, and adjusting the radial positions of the steel upright rods 4 in the steel reinforcement cage 3 by pulling or loosening the outer end parts of the steel wire ropes 52 so that the positions of the steel upright rods 4 correspond to the positions of the upper-layer chamber 21, and then locking the steel wire ropes 52 through the locking structures 53;
Step three: hoisting the upper prefabricated part 2 to the upper side of the lower prefabricated part 1, vertically corresponding the steel upright 4 to the upper chamber 21, and then vertically moving the upper prefabricated part 2 downwards, namely inserting the upper end of the steel upright 4 into the upper chamber 21;
Step four: concrete is poured into the upper layer chamber 21 and the lower layer chamber 11 through the grouting holes 22, the concrete firstly enters the lower layer chamber 11 due to gravity, the lower layer chamber 11 is filled, then the upper layer chamber 21 is filled, and after the concrete is solidified, the reinforcement cage 3, the lower layer prefabricated part 1, the steel upright 4 and the upper layer prefabricated part 2 are respectively integrated.
The foregoing description of the preferred embodiment of the invention is merely illustrative of the invention and is not intended to be limiting. It will be appreciated by persons skilled in the art that many variations, modifications, and even equivalents may be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. The utility model provides a non-bearing precast shear wall connection structure, lower floor's cavity has been seted up to the upside of lower floor's prefabricated component, and upper strata cavity has been seted up to the downside of upper prefabricated component, its characterized in that: including steel reinforcement cage, steel pole setting and driving piece, wherein:
The steel reinforcement cage is movably arranged in the lower-layer cavity, the lower end of the steel upright rod is horizontally and slidably arranged along the radial direction of the steel reinforcement cage, and the driving piece is used for adjusting the radial position of the steel upright rod in the steel reinforcement cage;
a plurality of sliding bars are fixed in the reinforcement cage, and the lower ends of the steel upright bars are slidably arranged on the sliding bars;
During installation, the circumferential angle of the steel reinforcement cage and the radial position of the steel upright rod in the steel reinforcement cage are adjusted so as to realize that the upper end of the steel upright rod can be smoothly inserted into the upper-layer cavity.
2. The non-load bearing precast shear wall connection construction of claim 1, wherein the drive member comprises a first spring, a wire rope, a pulley, and a locking structure; wherein:
The steel reinforcement cage is internally provided with a vertical rod, the first spring is arranged between the vertical rod and the steel vertical rod, one end of the steel wire rope is fixed with the steel vertical rod, the other end of the steel wire rope penetrates through the locking structure, the locking structure is used for fixing the steel wire rope, and the pulley is arranged in the steel reinforcement cage and used for guiding the steel wire rope to turn; the outer end of the steel wire rope is pulled or loosened and matched with the acting force of the first spring, so that the radial position of the steel upright rod in the steel reinforcement cage is adjusted.
3. The non-load bearing precast shear wall connection structure of claim 2, wherein the locking structure comprises a mounting block fixed to a vertical rod, two vertical blocks and a bolt; wherein:
the installation block is provided with a through hole, the steel wire rope penetrates through the through hole, the two vertical blocks are fixed on the installation block, the bolt is connected to one of the vertical blocks in a screwed mode, and the steel wire rope is abutted and fixed through screwing the bolt.
4. The non-load bearing precast shear wall connection structure of claim 1 or 3, wherein a grouting hole is formed at the upper end of the upper chamber.
5. The non-load bearing precast shear wall connection structure of claim 1, wherein a plurality of protruding rods are fixed to the surface of the steel upright rods located in the reinforcement cage.
6. The non-load bearing precast shear wall connection structure of claim 1, wherein the upper end of the steel upright is provided with a plurality of reinforcements, the reinforcements comprise grooves, overturning supporting rods and second springs; wherein:
the recess is seted up in the surface of steel pole setting, the upper end of upset butt pole is rotated through the pivot and is installed in the recess, the second spring is installed between recess inner wall and upset butt pole, makes the upset butt pole is the slope setting.
7. The non-load bearing precast shear wall connection structure of claim 6, wherein the maximum tilt angle of the tilt lever is 40-60 °, and the horizontal span of the tilt lever at the maximum tilt angle is greater than the radius of the upper chamber.
8. The non-load bearing precast shear wall connection structure of claim 6 or 7, wherein a plurality of the reinforcing members are arranged in two rows, and the reinforcing members in two rows are oppositely disposed.
9. A method of constructing a non-load bearing precast shear wall connection structure of claim 4, comprising the steps of:
step one: prefabricating a lower-layer prefabricated part and an upper-layer prefabricated part, and forming a lower-layer cavity and an upper-layer cavity on the lower-layer prefabricated part and the upper-layer prefabricated part respectively;
Step two: after the lower-layer prefabricated part is installed, hoisting the steel reinforcement cage into the lower-layer chamber, positioning the steel upright rods on the connecting line of the circle centers of the lower-layer chamber and the upper-layer chamber, and adjusting the radial positions of the steel upright rods in the steel reinforcement cage by pulling or loosening the outer end parts of the steel wire ropes so that the positions of the steel upright rods correspond to the positions of the upper-layer chamber, and then locking the steel wire ropes through a locking structure;
Step three: hoisting the upper-layer prefabricated part to the upper side of the lower-layer prefabricated part, enabling the steel upright rod to vertically correspond to the upper-layer cavity, and then vertically moving the upper-layer prefabricated part downwards, namely inserting the upper end of the steel upright rod into the upper-layer cavity;
step four: filling concrete is poured into the upper layer cavity and the lower layer cavity through grouting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410456172.3A CN118048990B (en) | 2024-04-16 | Non-bearing prefabricated shear wall connection structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410456172.3A CN118048990B (en) | 2024-04-16 | Non-bearing prefabricated shear wall connection structure and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118048990A CN118048990A (en) | 2024-05-17 |
| CN118048990B true CN118048990B (en) | 2024-07-02 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355010A (en) * | 2017-08-21 | 2017-11-17 | 南京工业大学 | A kind of precast concrete shear wall profile steel joint attachment structure |
| CN112112261A (en) * | 2020-09-21 | 2020-12-22 | 福建创润建设有限公司 | Fabricated building and construction method thereof |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355010A (en) * | 2017-08-21 | 2017-11-17 | 南京工业大学 | A kind of precast concrete shear wall profile steel joint attachment structure |
| CN112112261A (en) * | 2020-09-21 | 2020-12-22 | 福建创润建设有限公司 | Fabricated building and construction method thereof |
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