CN115262998A - Construction process for vertically placing and aligning reserved steel bars of assembled shear wall - Google Patents
Construction process for vertically placing and aligning reserved steel bars of assembled shear wall Download PDFInfo
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- CN115262998A CN115262998A CN202210852823.1A CN202210852823A CN115262998A CN 115262998 A CN115262998 A CN 115262998A CN 202210852823 A CN202210852823 A CN 202210852823A CN 115262998 A CN115262998 A CN 115262998A
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- shear wall
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- reserved
- aligning
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 121
- 239000010959 steel Substances 0.000 title claims abstract description 121
- 238000010276 construction Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 238000011900 installation process Methods 0.000 claims description 2
- 229910000975 Carbon steel Inorganic materials 0.000 claims 2
- 238000003466 welding Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- 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
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- 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
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
- E04G21/185—Means for positioning building parts or elements for anchoring elements or elements to be incorporated in the structure
Abstract
The invention relates to the field of civil engineering construction, in particular to a construction process for vertically placing and aligning reserved steel bars of an assembled shear wall. By adopting the method, the positions of the steel bars and the preformed holes can be accurately and quickly positioned, the placing speed of the assembled shear wall is greatly increased, and the construction efficiency is improved.
Description
Technical Field
The invention relates to the field of civil engineering construction, in particular to a construction process for hanging and aligning vertically reserved steel bars of an assembled shear wall.
Background
As the assembly type building is taken as the modern civil engineering construction technology advocated by the nation, the parts required by the building structure are manufactured in the factory in advance, the structure and the appearance of the parts are well processed during manufacturing, the operation processes of a construction site are reduced, and the construction efficiency is greatly improved. The assembly type building is widely concerned and applied in different countries and regions with the strong superiority.
Shear wall plays an important role in guaranteeing stable structure as main atress component in the assembled building, and the weak link of atress is generally regarded as to the component junction, so always can reserve reinforcing bar and reserve grout hole in prefabricated component junction, makes the component connect into an organic whole through pouring cement mortar. However, the construction positioning problem exists in the hoisting and placing process of the reserved steel bars and the reserved grouting holes, and the positioning accuracy of the construction positioning method has important significance for component placing. The existing suspension alignment process of the assembled shear wall and column generally adopts manual walking to slowly fall, and a mirror is used for observing whether the steel bars align to the holes, so that the installation method is difficult to meet the installation precision of prefabricated parts, the reserved steel bars are difficult to accurately enter reserved grouting holes, the reserved steel bars are easy to bend when the reserved steel bars are placed in deviation, and the construction efficiency and the construction quality are seriously influenced.
The prior patent (CN 211850963U) discloses a detachable steel bar positioning device for a shear wall, which is used for positioning a cast-in-place reinforced concrete structure, preventing steel bars from shifting due to concrete pouring or other reasons, and corresponding to the size, the number and the space of the steel bars in the shear wall one by one in the manufacturing process of a positioning sleeve, so that the detachable steel bar positioning device cannot meet the requirements of various shear walls.
The prior patent (CN 202767370U) discloses a shear wall steel bar positioning frame fixture, which is more complicated to operate and difficult to correct after facing inaccurate positioning by clamping a U-shaped block on a longitudinal bar of a ladder bar.
The prior patent (CN 108952014A) discloses a detachable reinforcing steel bar positioning device for a shear wall, which only considers the problem of positioning accuracy, but the material cannot be recycled, so that the material is greatly wasted.
The three patents mainly adopt a cast-in-place concrete structure, and have great difference with the assembly type building process.
Therefore, the inventor further researches the construction process and develops the construction process for hanging, placing and aligning the vertical reserved steel bars of the fabricated shear wall.
Disclosure of Invention
The invention aims to provide a construction process for vertically placing and aligning reserved steel bars of an assembled shear wall, which can accurately and quickly position the positions of the steel bars and the reserved holes, greatly improve the placing speed of the assembled shear wall and improve the construction efficiency.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the construction process for hanging, placing and aligning the vertical reserved steel bars of the fabricated shear wall comprises the following steps of:
the first step is as follows: the method comprises the following steps that a thin steel pipe is in threaded connection with one end of a thick steel pipe, the other end of the thick steel pipe is connected with a spring and steel bars inside the spring, steel sheets are arranged at the end parts of the steel bars inside the spring, the spring is connected with a base plate, round steel bars are arranged below the base plate, and the connecting structure is a base structure of a positioning device;
the second step: a compression spring, wherein a bolt is inserted into the spring and abuts against the steel sheet to keep the spring in a compression state;
the third step: the upper shear wall is connected through a lifting hook and a steel wire rope, and the lifting operation is carried out on the upper shear wall;
the fourth step: lifting the upper shear wall to a position away from the preset position above the lower shear wall, stopping falling, and adjusting the position;
the fifth step: sleeving a reserved connecting steel bar at one corner of the upper shear wall into the thin steel pipe and enabling the thin steel pipe to prop against the upper shear wall, outwards pulling out the bolt to enable the spring to pop out, adjusting the relative length of the two steel pipes through threads between the thin steel pipe and the thick steel pipe, enabling the smooth steel bar to enter a reserved grouting hole of the lower shear wall, and enabling the bottom surface of the base plate to be completely contacted with the lower shear wall;
and a sixth step: repeating the fifth step flow at the opposite corner in the installation process in the fifth step to ensure that the heights of the positioning devices on the two diagonal lines are consistent, and at the moment, reserving the connecting steel bar right above the reserved grouting hole;
the seventh step: placing two temporary guide devices at two opposite corners of the corner of the upper shear wall, and taking out the positioning devices on the two opposite corners;
eighth step: continuously placing the upper shear wall downwards, and assisting a stabilizing member by a worker to slowly fall to complete the final placing process;
the ninth step: and (5) mounting a shear wall support.
Through the positioner of scalable control, advance to fix a position upper portion shear force wall and lower part shear force wall, the installation that leads is carried out to rethread guider, realizes quick positioning reinforcement and preformed hole's position, improves assembled shear force wall's laying speed greatly, has improved the efficiency of construction.
Further, an annular sleeve blocking piece is arranged on the base plate, and the bolt penetrates through the annular sleeve blocking piece.
The annular sleeve baffle is used for guiding the limiting bolt.
Further, interim guider includes the bar angle steel, and bar angle steel length is 1 meter at least, welds a steel footboard in the angle steel bottom outside, and upper portion welding level pipe support to set up the level pipe.
And further, in the seventh step, the inner sides of the right angles of the strip-shaped angle steels are in contact with the upper shear wall, the temporary guide devices are placed on the lower shear wall, an operator stands on the temporary guide devices through the pedals to keep stable, and at the moment, two steel pipes in the positioning devices are adjusted to take out the positioning devices on two opposite angles.
Furthermore, in the eighth step, when continuing to lay upper portion shear force wall downwards, whether rock or control the skew when detecting upper portion shear force wall whereabouts through the air level pipe, in time correct the shear force wall, guarantee its accurate whereabouts.
Furthermore, one end of the strip-shaped angle steel, which is positioned on the lower shear wall, is provided with a support frame.
After adopting the scheme, compared with the prior art, the invention has the following advantages:
1. the positions of the steel bars and the preformed holes can be accurately and quickly positioned, the placing speed of the assembled shear wall is greatly improved, and the construction efficiency is improved;
2. the equipment can be repeatedly used, has small volume and is convenient to store and transport;
3. the equipment is simple, the operation method is simple, and the method is suitable for large-scale application in assembly type building construction.
Drawings
FIG. 1 is a schematic hanging view of the present invention;
FIG. 2 is a schematic view of the positioning device with the spring in compression;
FIG. 3 is a schematic view of the positioning device with the springs in their relaxed positions;
FIG. 4 is a partial schematic view of the latch pin in linkage with the steel plate;
FIG. 5 is a schematic view of a temporary guide;
description of the reference symbols
The upper shear wall 1 is reserved with connecting steel bars 11, the lower shear wall 2 is reserved with grouting holes 21,
a positioning device 3, a thin steel pipe 31, a thick steel pipe 32, a spring 33, a spring internal steel bar 34,
a temporary guide 4, a bar angle 41, a pedal 42, a level tube 43,
a lifting hook 5 and a steel wire rope 6.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in the figure, the construction process for the vertical reserved steel bar hanging and aligning of the fabricated shear wall comprises the steps of firstly preparing a positioning device 3 and a temporary guide device 4.
(1) The positioning device 3: two steel pipes with threads are used, the threads on the outer side of the thin steel pipe 31 are 100mm from bottom to top, the length of the steel pipe is 300mm, the inner diameter is 15mm, the wall thickness is 4mm, the threads on the inner side of the thick steel pipe 32 are long, the length of the steel pipe is 250mm, the inner diameter is 23mm, and the wall thickness is 4mm, and the two steel pipes are screwed together through the threads. The reserved connecting steel bars 11 are 14mm in diameter, the inner diameter of the thin steel tube 31 is slightly larger than the diameter of the connecting steel bars, and the gap is preferably 1mm to 2 mm. The steel sheet 35 is welded at the bottom of the thick steel pipe 32, the spring 33 is connected to the lower portion of the steel sheet 35, the spring inner steel bar 34 is arranged to serve as a bouncing device of the spring 33, the other end of the spring 33 is connected with the circular base plate 38, the 100mm round steel bar 39 with the length being welded below the base plate 38 is slightly smaller than the reserved hole in diameter, the gap is preferably 1mm to 2mm, and when the whole device is manufactured, the central lines of the two steel pipes, the spring 33 and the round steel bar 39 are required to be on the same straight line, so that two sets of the device are manufactured.
(2) The temporary guide 4: strip-shaped angle steel 41 is adopted: 12.5cm 5mm, the length is 1m, a steel pedal 42 is welded on the outer side of the bottom of the strip-shaped angle steel 41, a leveling tube 43 bracket is welded on the upper part, and a leveling tube 43 is arranged to manufacture two sets of the device.
The construction steps are as follows:
the first step is as follows: thin steel pipe 31 is connected with thick steel pipe 32 through the screw thread, thick steel pipe 32 is connected with spring 33 and the inside reinforcing bar 34 of spring, the inside reinforcing bar 34 welding steel sheet 35 of spring, and spring 33 lower part and backing plate 38 welding are in the same place, and backing plate 38 upper portion welding annular sleeve separation blade 37, smooth steel bar 39 welding is at the backing plate 38 opposite side, and thin steel pipe 31, thick steel pipe 32, spring 33, the inside reinforcing bar 34 of spring, the connection of smooth steel bar 39 all are in same vertical direction.
The second step is that: the pin 36 is placed in the ring shaped flap and is placed 3mm into the hole in the spring 33, compressing the spring 33 to 100mm and placing the pin 36 on the steel plate 35.
The third step: and connecting the lifting hook 5 with a lifting point and a steel wire rope 6, and lifting the upper shear wall 1.
The fourth step: and hoisting the upper shear wall 1 to a position which is about 500mm above the lower shear wall 2, stopping falling, and roughly adjusting the position of the upper shear wall.
The fifth step: by using the positioning device 3, the reserved connecting steel bars 11 at the corners of the shear wall are sleeved into the thin steel pipes 31 and are propped against the upper shear wall 1, the bolts 36 are pulled out to eject the springs 33, the lengths of the two steel pipes are slightly adjusted through the threads between the steel pipes, so that the smooth steel bars 39 enter the reserved grouting holes 21, the bottom surfaces of the backing plates 38 are completely contacted with the lower shear wall 2, the upper part of the positioning device 3 is propped against the upper shear wall 1, and the lower backing plates 38 are flatly placed on the lower shear wall 2.
And a sixth step: and (3) placing the reserved connecting steel bars 11 at the opposite corners of the shear wall in the fifth step, repeating the flow of the fifth step, adjusting the installed positioning devices 3 to the same height through the threads on the two steel pipes, and at the moment, reserving the connecting steel bars 11 right above the reserved grouting holes 21.
The seventh step: two temporary guiding devices 4 are placed at two opposite corners of the upper shear wall 1, the right-angled inner sides of the strip-shaped angle steels 41 are just in contact with the upper shear wall 1, the temporary guiding devices 4 are placed on the lower shear wall 2, an operator stands on the temporary guiding devices through the pedals 42 and keeps stable, and at the moment, the steel pipe threads in the positioning devices 3 are adjusted to take out the positioning devices 3 on the two opposite corners.
Eighth step: whether the upper shear wall 1 rocks or deflects left and right when falling is detected through the leveling tube 43, the shear wall is corrected in time, accurate falling is guaranteed, and a worker assists the stabilizing member to slowly fall to complete the final laying process.
The ninth step: and (5) installing shear wall supports.
The tenth step: the construction of other shear walls is continued according to the flow, and the shear walls are recycled and properly stored.
The above description is only an embodiment of the present invention, and the terms "upper, lower, left, right, middle" and the like in the present invention are used for reference only and are not absolute limitations, and all the insubstantial changes made by the present invention shall fall within the scope of the present invention.
Claims (6)
1. The construction process for the vertical reserved steel bar hanging alignment of the fabricated shear wall is characterized by comprising the following steps of:
the first step is as follows: the method comprises the following steps that a thin steel pipe is in threaded connection with one end of a thick steel pipe, the other end of the thick steel pipe is connected with a spring and a steel bar inside the spring, a steel sheet is arranged at the end part of the steel bar inside the spring, the spring is connected with a backing plate, a plain steel bar is arranged below the backing plate, and the connecting structure is a base structure of a positioning device;
the second step is that: a compression spring, wherein a bolt is inserted into the spring and abuts against the steel sheet to keep the spring in a compression state;
the third step: the upper shear wall is connected through a lifting hook and a steel wire rope, and the lifting operation is carried out on the upper shear wall;
the fourth step: hoisting the upper shear wall to a position away from the preset position above the lower shear wall, stopping falling, and adjusting the position;
the fifth step: sleeving a reserved connecting steel bar at one corner of the upper shear wall into the thin steel tube and enabling the thin steel tube to prop against the upper shear wall, pulling out the bolt outwards to enable the spring to pop out, adjusting the relative lengths of the two steel tubes through threads between the thin steel tube and the thick steel tube, enabling the plain steel bar to enter a reserved grouting hole of the lower shear wall, and enabling the bottom surface of the base plate to be completely contacted with the lower shear wall;
and a sixth step: repeating the fifth step flow at the opposite corner in the installation process in the fifth step to ensure that the heights of the positioning devices on the two diagonal lines are consistent, and at the moment, reserving the connecting steel bar right above the reserved grouting hole;
the seventh step: placing two temporary guide devices at two opposite corners of the corner of the upper shear wall, and taking out the positioning devices on the two opposite corners;
eighth step: continuing to place the upper shear wall downwards, and assisting a stabilizing component by workers to enable the stabilizing component to slowly fall to complete the final placing process;
the ninth step: and (5) installing shear wall supports.
2. The construction process for hoisting and aligning the vertically reserved steel bars of the fabricated shear wall according to claim 1, characterized in that: the backing plate is provided with an annular sleeve blocking piece, and the bolt penetrates through the annular sleeve blocking piece.
3. The construction process for lifting, placing and aligning the vertical reserved steel bars of the assembled shear wall according to claim 1, is characterized in that: the temporary guide device comprises bar-shaped angle steel, the length of the bar-shaped angle steel is at least 1m, a steel pedal is welded on the outer side of the bottom of the angle steel, a leveling pipe support is welded on the upper portion of the angle steel, and a leveling pipe is arranged.
4. The construction process for hoisting and aligning the vertically reserved steel bars of the fabricated shear wall according to claim 3, characterized in that: and seventhly, the inner sides of the right angles of the strip-shaped angle steels are in contact with the upper shear wall, the temporary guide devices are placed on the lower shear wall, an operator stands on the temporary guide devices through the pedals to keep stable, and the two steel pipes in the positioning devices are adjusted to take out the positioning devices on the two opposite angles.
5. The construction process for hoisting and aligning the vertically reserved steel bars of the fabricated shear wall according to claim 3, characterized in that: and in the eighth step, when the upper shear wall is continuously placed downwards, whether the upper shear wall shakes or deviates left and right when falling is detected through the leveling tube, the shear wall is corrected in time, and the accurate falling of the shear wall is guaranteed.
6. The construction process for hoisting and aligning the vertically reserved steel bars of the fabricated shear wall according to claim 3, characterized in that: one end of the strip-shaped angle steel, which is positioned on the lower shear wall, is provided with a support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210852823.1A CN115262998B (en) | 2022-07-19 | 2022-07-19 | Construction process for vertically reserving steel bar hanging alignment of assembled shear wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210852823.1A CN115262998B (en) | 2022-07-19 | 2022-07-19 | Construction process for vertically reserving steel bar hanging alignment of assembled shear wall |
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| Publication Number | Publication Date |
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| CN115262998A true CN115262998A (en) | 2022-11-01 |
| CN115262998B CN115262998B (en) | 2023-11-03 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999060898A1 (en) * | 1998-05-27 | 1999-12-02 | Abernathy Henry H Jr | Adjustable wall hanging device |
| US6263628B1 (en) * | 1999-04-21 | 2001-07-24 | John Griffin G. E. Steel Company | Load bearing building component and wall assembly method |
| CN107476582A (en) * | 2017-08-08 | 2017-12-15 | 袁奥 | A kind of prefabricated components installation auxiliary equipment and the method installed using the equipment |
| CN108385876A (en) * | 2018-02-12 | 2018-08-10 | 刘振华 | Whole pour of prefabricated assembled shear wall builds technique soon |
| CN108952014A (en) * | 2018-07-09 | 2018-12-07 | 上海宝冶集团有限公司 | A kind of shear force wall reinforcing steel bar positioning device |
| CN212200879U (en) * | 2020-03-19 | 2020-12-22 | 云南工商学院 | Connect reliable prefabricated assembled shear force wall |
| CN212406155U (en) * | 2020-05-21 | 2021-01-26 | 南京工程学院 | Vertical correction of hoist and mount prefabricated assembled reinforced concrete structure is to telescopic link of counterpointing |
| CN113047472A (en) * | 2021-04-25 | 2021-06-29 | 青岛腾远设计事务所有限公司 | Vertical wet method connecting structure of assembled concrete shear wall and construction method thereof |
| CN215716254U (en) * | 2021-09-07 | 2022-02-01 | 华侨大学 | Grouting joint bar compaction grouting sleeve precast concrete wall |
| KR102371555B1 (en) * | 2021-05-14 | 2022-03-07 | 동서 피, 씨, 씨 주식회사 | Hollow core slab joint wall construction structure and construction method thereof |
-
2022
- 2022-07-19 CN CN202210852823.1A patent/CN115262998B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999060898A1 (en) * | 1998-05-27 | 1999-12-02 | Abernathy Henry H Jr | Adjustable wall hanging device |
| US6263628B1 (en) * | 1999-04-21 | 2001-07-24 | John Griffin G. E. Steel Company | Load bearing building component and wall assembly method |
| CN107476582A (en) * | 2017-08-08 | 2017-12-15 | 袁奥 | A kind of prefabricated components installation auxiliary equipment and the method installed using the equipment |
| CN108385876A (en) * | 2018-02-12 | 2018-08-10 | 刘振华 | Whole pour of prefabricated assembled shear wall builds technique soon |
| CN108952014A (en) * | 2018-07-09 | 2018-12-07 | 上海宝冶集团有限公司 | A kind of shear force wall reinforcing steel bar positioning device |
| CN212200879U (en) * | 2020-03-19 | 2020-12-22 | 云南工商学院 | Connect reliable prefabricated assembled shear force wall |
| CN212406155U (en) * | 2020-05-21 | 2021-01-26 | 南京工程学院 | Vertical correction of hoist and mount prefabricated assembled reinforced concrete structure is to telescopic link of counterpointing |
| CN113047472A (en) * | 2021-04-25 | 2021-06-29 | 青岛腾远设计事务所有限公司 | Vertical wet method connecting structure of assembled concrete shear wall and construction method thereof |
| KR102371555B1 (en) * | 2021-05-14 | 2022-03-07 | 동서 피, 씨, 씨 주식회사 | Hollow core slab joint wall construction structure and construction method thereof |
| CN215716254U (en) * | 2021-09-07 | 2022-02-01 | 华侨大学 | Grouting joint bar compaction grouting sleeve precast concrete wall |
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| Publication number | Publication date |
|---|---|
| CN115262998B (en) | 2023-11-03 |
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