CN118324020A - Lifting appliance structure of prefabricated building component and installation method thereof - Google Patents
Lifting appliance structure of prefabricated building component and installation method thereof Download PDFInfo
- Publication number
- CN118324020A CN118324020A CN202410530830.9A CN202410530830A CN118324020A CN 118324020 A CN118324020 A CN 118324020A CN 202410530830 A CN202410530830 A CN 202410530830A CN 118324020 A CN118324020 A CN 118324020A
- Authority
- CN
- China
- Prior art keywords
- protective tube
- hook
- steel bar
- prefabricated building
- tube
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 title abstract description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 142
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 74
- 239000010959 steel Substances 0.000 claims abstract description 74
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 4
- 238000009416 shuttering Methods 0.000 description 17
- 230000002787 reinforcement Effects 0.000 description 12
- 230000006378 damage Effects 0.000 description 8
- 238000009415 formwork Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a lifting appliance structure of a prefabricated building component and an installation method thereof, wherein the lifting appliance structure comprises the prefabricated building component and a lifting appliance, a steel bar cage frame is arranged in the prefabricated building component, and the lifting appliance comprises a lifting hook and a protective pipe; the protective sleeve is sleeved on the steel bars in the steel bar cage frame and clamps and fixes the sleeved steel bars; the lifting hook is provided with a hook foot which can be fixed on the outer wall of the protective tube so that the lifting hook is indirectly connected with the steel bar through the protective tube; the inner diameter of the protective tube is larger than the outer diameter of the steel bar, so that the protective tube is easy to be sleeved on the steel bar; the protective tube can deform and is clamped and fixed on the steel bar after deformation; the slot structure is arranged on the protective tube, so that the protective tube is easy to deform, and the shape of the slot structure is correspondingly changed when the protective tube deforms; the slot structure is a cutting groove arranged at the end part of the protective tube, and the cutting groove extends from one end of the protective tube to the other end of the protective tube. The invention can not hurt the stressed steel bar when installing the lifting appliance.
Description
Technical Field
The invention relates to the technical field of assembled buildings, in particular to a lifting appliance structure of prefabricated building components and an installation method thereof.
Background
The assembled building is a building formed by prefabricating and forming basic components such as beams, plates, columns, walls and the like which form the building by factories and then assembling the basic components on site. The shuttering column (shuttering wall) is an assembled prefabricated member which is formed by a reinforcing steel bar system and a disassembling-free template. Compared with the traditional concrete prefabricated parts, the shuttering column (shuttering wall) is light and easy to transport and hoist, so that the shuttering column is popular. The hoisting point of the prefabricated shuttering column (wall) is extremely important, and relates to demoulding and hoisting, in-factory transportation, long-distance transportation, component hoisting and the like. Because the prefabricated shuttering column (wall) has no concrete, the thickness of the disassembling-free shuttering is very thin, and the weight of the component itself cannot be borne, therefore, the hanging point can only be solved by using a reinforcement cage.
The prior shuttering column (wall) hanging point structure is as follows:
1) Welding hanging points: one form commonly used is to weld one or more points of the component hooks to the main bars of a formwork column (wall) reinforcement cage;
2) And (3) hanging: and hoisting by using a hanging strip bottom prefabricated shuttering column (wall).
However, the existing prefabricated column structure and construction process have technical defects. For the welding hanging points, the hanging hooks are welded with the main reinforcement, so that damages are formed to the stressed reinforcement, the stressed cross section of the main reinforcement is reduced, and potential damages are formed to engineering quality; in addition, in the welding process, the high-temperature electric arc directly melts the steel bars, so that brittle failure is easy to form, and the safety of a building is endangered. For straight hoisting, the hoisting efficiency is low; after the component is hoisted in place, the hanging strip influences construction operation; moreover, the hanging point is not fixed, the randomness is high, and safety accidents such as overturning and the like are very easy to occur.
In combination, the structure form of the hanging point of the existing shuttering column (wall) is improved.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides the lifting appliance structure of the prefabricated building component and the installation method thereof, and the lifting appliance can not cause damage to the stressed steel bars when being installed.
The technical scheme is as follows: in order to achieve the above purpose, the lifting appliance structure of the prefabricated building component comprises the prefabricated building component and a lifting appliance, wherein a steel bar cage frame is arranged in the prefabricated building component, and the lifting appliance comprises a lifting hook and a protective pipe; the protective sleeve is sleeved on the steel bars in the steel bar cage frame and clamps and fixes the sleeved steel bars; the lifting hook is provided with a hook foot which can be fixed on the outer wall of the protective tube so that the lifting hook is indirectly connected with the steel bar through the protective tube.
Further, the inner diameter of the protective tube is larger than the outer diameter of the steel bar, so that the protective tube is easy to be sleeved on the steel bar; the protective tube can deform, and is clamped and fixed on the steel bar after deformation.
Further, the slot structure is arranged on the protective tube, so that the protective tube is easy to deform, and the shape of the slot structure is correspondingly changed when the protective tube deforms.
Further, the slot structure is a cutting groove arranged at the end part of the protective tube, and the cutting groove extends from one end of the protective tube to the other end of the protective tube.
Further, a plurality of cutting grooves are respectively arranged at the two ends of the protective tube, and the cutting grooves at the two ends of the protective tube are distributed in a staggered mode along the circumferential direction.
Further, the cutting grooves at one end of the protective tube extend between two adjacent cutting grooves at the other end of the protective tube, so that the cutting grooves at the two ends of the protective tube can cover the whole length direction of the protective tube in a matched mode; when the two ends of the protective tube are subjected to reverse torsion, the cutting grooves are narrowed, and the inner diameter of the protective tube is reduced and clamps the sleeved reinforcing steel bars.
Further, the lifting hook is provided with at least two hook feet, and each hook foot is respectively fixed on different steel bars in the steel bar cage frame through the protective tube.
Further, the lifting hook comprises an upturned hook body part, two ends of the hook body part are respectively provided with a hook foot, and the hook feet extend along the length direction of the protective tube and are fixedly attached to the outer wall of the protective tube.
Further, the hook feet are welded and fixed on the outer wall of the protective tube.
Further, the method for installing the sling structure of the prefabricated building component comprises the following steps: the protective tube is sleeved on the steel bars in the steel bar cage frame, reverse torsion is applied to the two ends of the protective tube, so that the cutting grooves on the protective tube are narrowed and deformed, the protective tube clamp is fastened and fixed on the corresponding steel bars, and then the hook legs of the lifting hooks are welded and fixed on the outer wall of the protective tube.
The beneficial effects are that: the lifting appliance structure of the prefabricated building component and the installation method thereof have the beneficial effects that:
1) The protective tube is sleeved and fixed on the steel bar, and then the hook feet of the lifting hook are welded and fixed on the outer wall of the protective tube, so that the lifting hook is indirectly connected with the steel bar through the protective tube, and the damage to the steel bar caused by the welding of the lifting hook and the steel bar is avoided;
2) The two ends of the protective tube are respectively provided with a cutting groove, so that the protective tube is easy to deform; the protective tube is deformed in a mode of applying reverse torsion to the two ends of the protective tube, so that the protective tube is clamped on the reinforcing steel bars; the deformed protective tube has more contact points with the steel bars, and the protective tube can be more firmly fixed on the steel bars.
Drawings
FIG. 1 is a schematic cross-sectional view of a prefabricated formwork column;
Fig. 2 is a schematic structural view of a hanger mounted on a steel bar;
FIG. 3 is a schematic view of a shorter slot in a protective tube;
fig. 4 is a schematic view of a longer slot in the guard tube.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The hanger structure of prefabricated building elements according to fig. 1 to 4 comprises prefabricated building elements and a hanger, wherein a reinforcement cage 1 is arranged in the prefabricated building elements, and the hanger comprises a lifting hook 2 and a protective tube 3. The protective tube 3 is sleeved on the steel bars in the steel bar cage frame 1, and the protective tube 3 clamps and fixes the sleeved steel bars. The hook 2 has a hook leg 4, and the hook leg 4 of the hook 2 is fixed on the outer wall of the protective tube 3 so that the hook 2 is indirectly connected with the reinforcing steel bar through the protective tube 3. In the existing lifting appliance installation mode, the lifting hook 2 is generally directly connected with the steel bar in a welding mode, so that certain damage can be caused to the steel bar, the stressed section of the steel bar is reduced, and potential harm is formed to engineering quality. In the invention, the lifting hook 2 is indirectly connected with the steel bar through the protective tube 3, so that damage to the steel bar is avoided.
The prefabricated building elements can be subdivided into different categories depending on the concrete content. Taking a prefabricated column as an example, the prefabricated column can be divided into a prefabricated solid column, a prefabricated hollow column and a prefabricated shuttering column 7, wherein the prefabricated solid column is formed by pouring the steel bar system of the column into concrete; the prefabricated hollow column is formed by hollowing out the middle of the column body and concrete is arranged around the column body; and the exterior of the reinforcement cage 1 of the prefabricated formwork column 7 is wrapped with the disassembly-free templates 8 on four sides.
The prefabricated shuttering column 7 shown in fig. 1 has a cross section structure, the prefabricated shuttering column 7 has no concrete, the thickness of the disassembling-free shuttering 8 is very thin, and the weight of the component cannot be borne, so the hanging point can only be solved by the steel bar cage 1, the invention is suitable for being applied to the prefabricated shuttering column 7, but not limited to being applied to the prefabricated shuttering column 7, and the hanging tool structure of the invention can also be applied to the prefabricated solid column and the prefabricated hollow column.
The inner diameter of the protective tube 3 is larger than the outer diameter of the steel bar, so that the protective tube 3 is easy to be sleeved on the steel bar, and the protective tube 3 is convenient to be sleeved on a proper position of the steel bar from one end of the steel bar. The protection tube 3 can deform, the protection tube 3 clamps and fixes on the reinforcing bar after deformation, and when the lifting hook 2 is stressed, the protection tube 3 can transmit the pulling force of the lifting hook 2 to the reinforcing bar cage frame 1.
The protective tube 3 is provided with a slot structure. The protective tube 3 is clamped on the reinforcing steel bars after plastic deformation, and the protective tube 3 is easier to deform due to the existence of the slot structure, and the shape of the slot structure is correspondingly changed when the protective tube 3 deforms.
As shown in fig. 3 and 4, the slit structure is a slit 5 provided at an end of the protective tube 3, the slit 5 extending from one end of the protective tube 3 to the other end of the protective tube 3. Since the notch 5 is located at the end of the protection tube 3, the end of the protection tube 3 is easier to deform, and the notch 5 is easier to be processed at the end of the protection tube 3, so that the processing cost of the protection tube 3 in practical application is lower.
The two ends of the protective tube 3 are respectively provided with a plurality of cutting grooves 5, and the cutting grooves 5 at one end of the protective tube 3 are circumferentially distributed. The end of the protective tube 3 is more easily deformed by the engagement of the plurality of slits 5. The cutting grooves 5 at the two ends of the protective tube 3 are distributed in a staggered mode along the circumferential direction, and the cutting grooves 5 are arranged to have small influence on the strength of the protective tube 3.
As shown in fig. 4, the slits 5 at one end of the protective tube 3 extend between two adjacent slits 5 at the other end of the protective tube 3, so that the slits 5 at both ends of the protective tube 3 can be fitted to cover the entire length direction of the protective tube 3. Thereby, when both ends of the sheathing tube 3 are subjected to reverse torsion, the cutting groove 5 is inclined and narrowed, and the inner diameter of the sheathing tube 3 is reduced, thereby enabling the sheathing tube 3 to clamp the sheathed reinforcing bar.
If the protective tube 3 shown in fig. 3 is used, the two ends of the protective tube 3 are pressed and fixed on the main rib 9 of the reinforcement cage 1 by tool pressure pliers. With this fixing method, only two ends of the protective tube 3 are clamped on the reinforcing steel bar, and the contact points between the protective tube 3 and the reinforcing steel bar are fewer. In the case of the protective tube 3 shown in fig. 4, if the protective tube 3 is clamped and fixed on the reinforcing steel bar by using the tool pressure pliers, the protective tube 3 can be contacted with the reinforcing steel bar in the whole length direction, the contact points are increased, and the fixing effect is better. However, the protective tube 3 is deformed and clamped on the steel bar in a clamping manner, and the contact points between the inner wall of the deformed protective tube 3 and the steel bar are still less, so in the invention, the protective tube 3 is deformed by applying reverse torsion to the two ends of the protective tube 3 instead of simply clamping the protective tube 3, the slot 5 is narrowed under the action of torsion, the inner diameter of the protective tube 3 is also reduced, the inner wall of the protective tube 3 can be tightly attached on the steel bar, the number of the contact points between the inner wall of the protective tube 3 and the steel bar is further increased, the protective tube 3 can be more firmly fixed on the steel bar, and the protective tube 3 is not easy to separate from the steel bar when the protective tube 3 transfers the tension of the lifting hook 2 to the steel bar.
At least two hook feet 4 are arranged on the lifting hook 2, each hook foot 4 is respectively fixed on different steel bars in the steel bar cage frame 1 through the protective tube 3, namely, each hook foot 4 is fixed on the protective tube 3, and the hook feet 4 are not directly connected with the steel bars, so that the damage to the steel bars can be avoided. Two or more hooks 4 also allow the hooks 2 to be stably fixed to the reinforcement cage 1.
In one embodiment shown in fig. 2, the hook 2 includes a hook body 6 bent upwards, two ends of the hook body 6 are respectively provided with a hook leg 4, the hook legs 4 extend along the length direction of the protective tube 3 and are fixedly attached to the outer wall of the protective tube 3, and the hook legs 4 are fixedly welded to the outer wall of the protective tube 3, so that the hook legs 4 can be stably connected with the protective tube 3.
The invention also provides an installation method of the lifting appliance structure of the prefabricated building component, which comprises the following steps: the protective tube 3 is sleeved on the steel bars in the steel bar cage frame 1, reverse torsion is applied to the two ends of the protective tube 3, so that the cutting groove 5 on the protective tube 3 is narrowed and deformed, the protective tube 3 is clamped and fixed on the corresponding steel bars, and then the hook leg 4 of the lifting hook 2 is welded and fixed on the outer wall of the protective tube 3.
An embodiment of the present invention is as follows: as shown in fig. 1, the prefabricated building element is a prefabricated formwork column 7, the prefabricated formwork column 7 comprises an external disassembly-free formwork 8 and an internal reinforcement cage 1, and the reinforcement cage 1 consists of main reinforcements 9 and stirrups 10; the shape of the protective tube 3 is shown in figure 4, the inner diameter of the protective tube 3 is slightly larger than the outer diameter of the main ribs 9, two protective tubes 3 are sleeved on the two adjacent main ribs 9, then two clamps are adopted to clamp the two ends of the protective tube 3 respectively, the two clamps are twisted reversely, reverse torsion is applied to the two ends of the protective tube 3, the cutting grooves 5 on the protective tube 3 are narrowed, and the inner diameter of the protective tube 3 is reduced and clamped and fixed on the steel bars; then, as shown in fig. 2, the two legs 4 of the hanger 2 are fixed to the two protection pipes 3 by welding, thereby achieving the mounting of the hanger.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (10)
1. Hoist structure of prefabricated building component, its characterized in that: the steel bar cage comprises a prefabricated building component and a lifting appliance, wherein a steel bar cage frame (1) is arranged in the prefabricated building component, and the lifting appliance comprises a lifting hook (2) and a protective tube (3); the protective tube (3) is sleeved on the steel bars in the steel bar cage frame (1) and clamps and fixes the sleeved steel bars; the lifting hook (2) is provided with a hook foot (4), and the hook foot (4) can be fixed on the outer wall of the protective tube (3) so that the lifting hook (2) is indirectly connected with the steel bar through the protective tube (3).
2. The spreader structure of prefabricated building elements according to claim 1, wherein: the inner diameter of the protective tube (3) is larger than the outer diameter of the steel bar, so that the protective tube (3) is easy to be sleeved on the steel bar; the protection tube (3) can deform, and the protection tube (3) is clamped and fixed on the steel bar after deformation.
3. The spreader structure of prefabricated building elements according to claim 2, wherein: the slot structure is arranged on the protective tube (3), so that the protective tube (3) is easy to deform, and the shape of the slot structure is correspondingly changed when the protective tube (3) deforms.
4. A spreader construction for prefabricated building elements according to claim 3, wherein: the slot structure is a cutting groove (5) arranged at the end part of the protective tube (3), and the cutting groove (5) extends from one end of the protective tube (3) to the other end of the protective tube (3).
5. The spreader structure of prefabricated building elements according to claim 4, wherein: the two ends of the protection tube (3) are respectively provided with a plurality of cutting grooves (5), and the cutting grooves (5) at the two ends of the protection tube (3) are distributed in a staggered mode along the circumferential direction.
6. The spreader structure of prefabricated building elements according to claim 5, wherein: the cutting grooves (5) at one end of the protective tube (3) extend between two adjacent cutting grooves (5) at the other end of the protective tube (3), so that the cutting grooves (5) at the two ends of the protective tube (3) can cover the whole length direction of the protective tube (3) in a matching manner; when the two ends of the protective tube (3) are subjected to reverse torsion, the cutting grooves (5) are narrowed, and the inner diameter of the protective tube (3) is reduced and clamps the sleeved reinforcing steel bars.
7. A spreader construction for prefabricated building elements according to any one of claims 1 to 6, wherein: at least two hook legs (4) are arranged on the lifting hook (2), and each hook leg (4) is respectively fixed on different steel bars in the steel bar cage frame (1) through the protective tube (3).
8. The spreader structure of prefabricated building elements according to claim 7, wherein: the lifting hook (2) comprises an upturned hook body part (6), two ends of the hook body part (6) are respectively provided with a hook foot (4), and the hook feet (4) extend along the length direction of the protective tube (3) and are fixedly attached to the outer wall of the protective tube (3).
9. The spreader structure of prefabricated building elements according to claim 8, wherein: the hook leg (4) is welded and fixed on the outer wall of the protective tube (3).
10. The method of installing a spreader structure for prefabricated building elements according to claim 6, wherein: the method comprises the following steps: the protective tube (3) is sleeved on the steel bars in the steel bar cage (1), reverse torsion is applied to the two ends of the protective tube (3), so that the cutting groove (5) on the protective tube (3) is narrowed and deformed, the protective tube (3) is clamped and fixed on the corresponding steel bars, and then the hook feet (4) of the lifting hook (2) are welded and fixed on the outer wall of the protective tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410530830.9A CN118324020A (en) | 2024-04-29 | 2024-04-29 | Lifting appliance structure of prefabricated building component and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410530830.9A CN118324020A (en) | 2024-04-29 | 2024-04-29 | Lifting appliance structure of prefabricated building component and installation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118324020A true CN118324020A (en) | 2024-07-12 |
Family
ID=91770034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410530830.9A Pending CN118324020A (en) | 2024-04-29 | 2024-04-29 | Lifting appliance structure of prefabricated building component and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118324020A (en) |
-
2024
- 2024-04-29 CN CN202410530830.9A patent/CN118324020A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3299528B1 (en) | Assembly type steel pipe casing reinforced concrete combined joint and mounting method | |
| KR102075165B1 (en) | Concrete filled tubular column and connecting structure of the same and construction method thereof | |
| US10017942B2 (en) | Rebar wall set-up bar | |
| JP5894039B2 (en) | Anchor cable fixing structure | |
| US20160130813A1 (en) | Fiber reinforced composite system for strengthening of wall-like rc columns and methods for preparing such system | |
| KR100952930B1 (en) | Shear force reinforcing apparatus of concrete filled steel tube column-reinforced concrete flat slab joint | |
| JP6491030B2 (en) | Anchor cable fixing structure | |
| EP0794296A1 (en) | Support structure for cage for reinforcing a concrete pile | |
| CN118324020A (en) | Lifting appliance structure of prefabricated building component and installation method thereof | |
| KR101142436B1 (en) | Hybrid paper formwork | |
| KR101490812B1 (en) | Prefabricated steel frame with hoop reinforcement for composite member of steel and concrete | |
| JP5103202B2 (en) | Assembling method of beam support bar and beam reinforcement | |
| KR101938887B1 (en) | Reinforcement structure of seismic detailing hoop with fixed device | |
| KR200406190Y1 (en) | Confining Structure of Steel Reinforcement with Wire | |
| JP2015045202A (en) | Arch culvert and manufacturing method thereof | |
| US11834854B2 (en) | Transport anchor having a fibre-plastic composite material pressure element | |
| KR20150048993A (en) | Device for preventing buoyance in hollow concrete slab | |
| JPH08170306A (en) | Saddle structure for main-tower side diagonal cable of cable stayed bridge | |
| CN215670070U (en) | RC beam connecting joint of assembled circular steel tube concrete column | |
| KR100684235B1 (en) | Strub steel reinforcing coupler | |
| CN211572254U (en) | Easily-disassembled stirrup | |
| JPS6018482Y2 (en) | Structure of joint between steel pipe concrete column and shaped steel beam | |
| CN218170862U (en) | Tool for adjusting precast beam opening hoop protection layer | |
| JP3707749B2 (en) | Wrapping method of linear steel around columnar structure | |
| KR20120077778A (en) | Connecting apparatus for arrangement of pararrel steel reinforcement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination |