CN212897652U - Modularized turnover prefabricated inner wall joint bar positioning system - Google Patents
Modularized turnover prefabricated inner wall joint bar positioning system Download PDFInfo
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- CN212897652U CN212897652U CN202021104942.1U CN202021104942U CN212897652U CN 212897652 U CN212897652 U CN 212897652U CN 202021104942 U CN202021104942 U CN 202021104942U CN 212897652 U CN212897652 U CN 212897652U
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- 230000007306 turnover Effects 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000005266 casting Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 17
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 238000009415 formwork Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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Abstract
The utility model relates to a modularized turnover prefabricated inner wall dowel positioning system, which comprises a positioning plate, a support leg, a positioning nut and a fastening butterfly nut, wherein the positioning plate, the support leg, the positioning nut and the fastening butterfly nut are sequentially arranged from top to bottom; the positioning plate is of a rectangular plate-shaped structure, and embedded dowel positioning holes and vibrating holes are sequentially and alternately arranged in the length direction of the positioning plate; the supporting legs comprise cross rods horizontally penetrating through the positioning plates and vertical rods fixedly connected to the two ends of the cross rods, and positioning nuts and butterfly nuts are arranged on the two vertical rods; a sleeve is further sleeved on the vertical rod and above the positioning nut, and an adjusting screw is screwed at the lower end of the vertical rod; the locating plates are arranged into a plurality of and are connected through equal angle steel. The utility model discloses functional strong, application range is wide, can the wide application in construction technical field.
Description
Technical Field
The utility model relates to a construction technical field specifically indicates that the modularization can have enough to meet need prefabricated interior wall joint bar positioning system. More specifically, the utility model discloses a to all buildings that adopt assembled PC interior wall, the reinforcing bar location of structure wall conversion layer.
Background
At present, with the common application of the assembled structural form in China, the usage amount of the assembled wall body is increased year by year. However, during the construction of the assembled PC wall, a high requirement is provided for the pre-embedding accuracy of the reinforcing steel bars of the conversion layer, the wall cannot be installed directly due to the deviation of the pre-embedded inserted bars, and great influence is caused on the engineering quality, the construction period and the cost. But the wall body reinforcing steel bar positioning device who uses in traditional work progress has the location precision low, the installation is inconvenient, need weld, can't have enough to meet the need a series of problems such as turnover.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a technical scheme does:
a modularized turnover prefabricated inner wall dowel positioning system comprises a positioning plate, supporting legs, positioning nuts and fastening butterfly nuts, wherein the positioning plate, the supporting legs are arranged at the lower parts of the positioning plate in a penetrating mode, and the positioning nuts and the fastening butterfly nuts are screwed on the supporting legs; the positioning plate is of a rectangular plate-shaped structure, and embedded dowel positioning holes and vibrating holes are sequentially and alternately arranged in the length direction of the positioning plate; the supporting legs comprise cross rods horizontally penetrating through the positioning plates and vertical rods fixedly connected to two ends of the cross rods, and the positioning nuts and the butterfly nuts are arranged on the two vertical rods; a sleeve is further sleeved on the vertical rod and above the positioning nut, and an adjusting screw is screwed at the lower end of the vertical rod; the locating plates are arranged in a plurality of numbers and are connected through equal angle steel.
Furthermore, bolt through holes are formed in the end portion of the positioning plate and the angle steel, and the positioning plate and the angle steel are connected in the through holes through fixing bolts.
Furthermore, the supporting legs are symmetrically arranged at the positions, close to the two ends, of the lower portion of the positioning plate respectively.
Furthermore, the upper end of the sleeve is positioned above the floor concrete pouring working surface.
When the system is used for constructing the dowel bars, the construction method comprises the following steps:
1) performing line snapping, positioning and punching on the upper part of the template or the prefabricated laminated slab;
2) penetrating positioning support legs into the template or the prefabricated laminated slab and fixing;
3) positioning and fastening the positioning support leg through a positioning nut;
4) the positioning plate is installed, fixed through angle steel and bolts and installed on the upper portion of the positioning supporting leg;
5) penetrating the embedded joint bars into the embedded joint bar positioning holes, and then checking and accepting;
6) pouring concrete and vibrating by a vibrator;
7) removing the positioning system after the concrete is initially set;
8) and filling and compacting the holes formed after the dismantling by using micro-expansion mortar.
In the step 1), snapping a 30cm control line and a hidden column control line on the outer side of the shear wall according to an embedded joint bar positioning drawing of the assembled PC shear wall, positioning the embedded joint bar position, and labeling in the control line; drilling holes in the upper part of the template or the laminated slab for installing and positioning the supporting legs, and then screwing positioning bolts into the lower parts of the supporting legs to adjust the supporting legs; when the sleeve is sleeved, the length of the sleeve is larger than the thickness of the cast-in-situ laminate.
In the step 5), after the embedded joint bars are inserted into the positioning plate, the joint bars and the steel bars at the lower part of the wall body are bound and fixed.
In the step 7), in the process of dismantling, the positioning plate is firstly dismantled, then the butterfly nut at the lower part is loosened, and finally the positioning support leg and the positioning nut are integrally pulled out.
And 8), uniformly filling the micro-expansion mortar with a high grade into the reserved holes in a mould hanging mode, and maintaining.
After the structure more than adopting, the utility model has the advantages of as follows:
1) the system adopts modularized assembly, on-site welding operation is not needed, uncertainty caused by on-site welding of a traditional steel bar positioning system is avoided, positioning of the prefabricated PC inner wall steel bar can be effectively carried out, positioning accuracy is improved, and the advantage of avoiding welding makes the environmental protection benefit of the utility model more obvious;
2) the butterfly nuts are adopted for fastening, so that the composite floor slab can adapt to composite floor slabs with different thicknesses and different forms, the on-site assembly efficiency is improved, any welding is not needed, the implementation process is convenient to operate, and the application range is wide;
3) compared with the conventional positioning device, the utility model can realize 100 percent turnover use, does not need to add any measure reinforcing steel bars, and effectively reduces the construction cost;
4) the utility model adopts modular assembly, can be assembled on site according to different parameters of the PC wall, improves the turnover rate of the positioning system and improves the applicability of the positioning system;
5) the utility model discloses a do not have the requirement to the floor form, applicable in the combined floor of different construction forms about cast-in-place plank sheathing, prefabricated superimposed sheet and wall body, application scope is wide, and can promote the nature by force.
Drawings
FIG. 1 is a schematic illustration of a dowel for a conversion layer in a prior art shear wall;
FIG. 2 is a schematic structural view of a positioning plate according to an embodiment of the present invention;
fig. 3 is a usage state diagram in the embodiment of the present invention;
FIG. 4 is a schematic view of the connection relationship between the positioning plate and the angle steel in the embodiment of the present invention;
FIG. 5 is a schematic view illustrating the positioning plate of the embodiment of the present invention;
fig. 6 is a schematic view of the installation of the support leg in the embodiment of the present invention;
fig. 7 is a schematic structural diagram of the embodiment of the present invention before concrete is poured.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
With reference to fig. 1, for a building with an assembly type inner wall, in a connection area between a cast-in-place wall body and the assembly type wall body, wall embedded steel bars need to be embedded on a cast-in-place layer, namely, conversion layer joint bars in the drawing. The utility model discloses to this problem, a new pre-buried dowel method of using system and utilizing this system to realize is proposed to solved the pre-buried shortcoming of traditional construction, the precision obviously promotes, and maneuverability is strong, and can realize the advantage that 100% can have enough to meet the need the use, has extensive range of application, and stronger generalizability. The present invention will be described in detail with reference to the following examples.
Example one
The embodiment provides a positioning system for positioning a dowel.
A modularized turnover prefabricated inner wall dowel positioning system comprises a positioning plate 1, supporting legs 2, positioning nuts 3 and fastening butterfly nuts 4, wherein the positioning plate 1, the supporting legs 2 are arranged at the lower parts of the positioning plate 1 in a penetrating mode, and the positioning nuts 3 and the fastening butterfly nuts 4 are screwed on the supporting legs 2; the positioning plate 1 is of a rectangular plate-shaped structure, and embedded dowel positioning holes 5 and vibrating holes 6 are sequentially and alternately arranged in the length direction of the positioning plate 1; the supporting legs 2 comprise cross rods 201 horizontally penetrating through the positioning plate 1 and vertical rods 202 fixedly connected to two ends of the cross rods 201, and positioning nuts 3 and butterfly nuts 4 are arranged on the two vertical rods 202; a sleeve 7 is further sleeved on the vertical rod 202 and above the positioning nut 3, and an adjusting screw is screwed at the lower end of the vertical rod 202; the positioning plates 1 are arranged in a plurality of numbers and are connected through equal angle steels 8.
Bolt through holes 9 are formed in the end portion of the positioning plate 1 and the angle steel 8, and the positioning plate 1 and the angle steel 8 are connected through the fixing bolts in the through holes 9.
The supporting legs 2 are respectively and symmetrically arranged at the lower part of the positioning plate 1 and close to the two ends.
The upper end of the sleeve 7 is positioned above the floor concrete pouring working surface.
As can be seen from fig. 2, the supporting legs 2 are located at the lower part of the positioning plate 1, and the upper ends of the supporting legs 2 vertically penetrate through the positioning plate 1, specifically, the cross bars 201 on the supporting legs 2 vertically penetrate through the positioning plate 1, two ends of the cross bars 201 exceed the positioning plate 1, and the ends of the cross bars 201 and the vertical bars 202 can be fixed by bolts; the number of the embedded dowel locating holes 5 on the locating plate 1 corresponds to the number of the embedded dowels, and the vibrating holes 6 are square.
Referring to fig. 3, a cross-sectional view of an embedded joint of an assembled wall body after embedded joint bars is shown. In the figure, 10 is a pre-embedded dowel, which passes through a pre-embedded dowel positioning hole 5 on a positioning plate 1, extends downwards and enters a shear wall 12 through a floor slab concrete pouring operation surface 11, and a sleeve 7 is sleeved in a vertical rod 202 in the part of the floor slab concrete pouring operation surface, so that a certain protection effect is achieved; the cast-in-situ wall and the shear wall 13 where the floor slab concrete pouring operation surface 11 is positioned are positioned in a standard way through a wooden template or a laminated slab 14; the positioning nut 3 and the fastening wing nut 4 are respectively positioned on the upper surface and the lower surface of the template or the laminated slab 14 to play a role in positioning and fastening, and the lower end of the vertical rod 202 penetrates through the template or the laminated slab 14.
According to the structure and the mounting structure sketch map that the attached 1-3 promulgated, the utility model discloses a prefabricated PC interior wall steel bar positioning system can have enough to meet the need to the modularization fixes this conversion layer dowel. During construction, the template or the prefabricated composite slab 14 is firstly subjected to paying-off and punching with the aperture of
And penetrate intoThe landing leg 2 is used in position, the height of the landing leg 2 is adjusted according to the plate thickness required by a drawing, the upper end of the landing leg 2 is fixed by adopting a matched bolt, and the outer side of the landing leg needs to be sleeved with a sleeve before fixing
And then the underside of the leg 2 is secured using the thumb bolt 4 on the underside of the template or laminate 14 (see figure 3). After the supporting legs 2 are installed, the positioning plate 1 is installed, and the positioning plate 1 and the connecting device in the construction method both adopt a modularized forming and assembling type and mainly comprise 8mm positioning steel plates, L30, 30, 3.5mm angle steel 8 and matched connecting bolts (see figure 4). After the positioning steel plate is provided with the through hole 9 at the specified position of the drawing, the positioning steel plate adopts
The angle steel 8 is connected with the steel plate by bolts, and the modularized angle steel 8 and the angle steel 8 are connected by bolts
The bolts are connected, so that the whole steel bar positioning system is free of welding, and the steel bar positioning deviation caused by the state and the process of field welding personnel is avoided.
Example two
The embodiment provides a construction method for embedding a dowel by using the system in the first embodiment.
The method specifically comprises the following steps that aiming at a building with an assembly type inner wall, in a connecting area of a cast-in-place wall body and the assembly type wall body, and in the process of embedding joint bars in the cast-in-place layer of the wall body, the method comprises the following steps:
1) snapping lines and positioning and punching holes on the upper part of the template or the prefabricated laminated slab 14;
2) the positioning supporting legs 2 are penetrated into the template or the prefabricated composite slab 14 and fixed;
3) positioning and fastening the positioning support leg 2 through a positioning nut 3;
4) installing a positioning plate 1, fixing the positioning plate through angle steel 8 and bolts, and installing the positioning plate on the upper part of a positioning supporting leg 2;
5) penetrating the embedded joint bars 10 into the embedded joint bar positioning holes 5, and then checking and accepting;
6) pouring concrete and vibrating by a vibrator;
7) removing the positioning system after the concrete is initially set;
8) and filling and compacting the holes formed after the dismantling by using micro-expansion mortar.
In the step 1), snapping a 30cm control line and a hidden column control line on the outer side of the shear wall according to an embedded joint bar positioning drawing of the assembled PC shear wall, positioning the position of an embedded joint bar 10, and labeling in the control line; after the upper part of the template or the laminated slab 14 is drilled for installing and positioning the supporting legs 2, adjusting the supporting legs 2 according to the thickness of a floor slab; when the sleeve 7 is sleeved, the length of the sleeve is larger than the thickness of the cast-in-situ laminate.
In the step 5), after the embedded joint bars 10 are inserted into the positioning plate 1, the joint bars 10 and the steel bars at the lower part of the wall body are bound and fixed.
In the step 7), in the process of dismantling, the locating plate 1 is firstly dismantled, then the butterfly nut 4 at the lower part is loosened, and finally the locating support leg 2 and the locating nut 3 are integrally pulled out.
And 8), uniformly filling the micro-expansion mortar with a high grade into the reserved holes in a mould hanging mode, and maintaining.
As shown in fig. 5, in the process of installing the positioning leg 2 in step 2), a hole is drilled at a position corresponding to the upper portion of the formwork or the laminated slab 14 at the positioning leg 2, after the hole is drilled, an M14 positioning bolt is screwed into the lower portion of the positioning leg 2, and the screwing depth (the distance from the bottom to the cross bar of the positioning leg) of the bolt is adjusted according to the thickness of the floor slab, which is generally equal to the thickness of the floor slab plus 5 cm. After the positioning bolt is adjusted, the PVC sleeve 7 is sleeved on the positioning supporting leg 2, the positioning supporting leg 2 is inserted into a drilling position, and a supporting leg head 203 is arranged in the middle of the cross rod 201 of the supporting leg 2. The length of the PVC casing pipe 7 is required to be larger than the thickness of a cast-in-situ slab, so that the support leg 2 can be smoothly detached (see the attached figure 6).
Referring to fig. 7, in the positioning and fixing process in step 3), after the legs 2 pass through the lower portion of the formwork 14, the fastening wing nuts 4 are screwed into the lower portion of the formwork 14 in consideration of the construction operationConvenience, arrangement position of lower square timber and other factors, and selection and use of fastening nut
Butterfly nut 4 that the reinforcing bar matches.
In step 4), carry out the modularization according to different wall bodies and assemble locating plate 1, the utility model discloses in this engineering modularization locating plate 1 adopt thickness 8mm, length modulus to be L1200 mm, L400 mm, L150 mm's three modulus (can adjust and make up the matching according to the modulus difference of wall body). The positioning plate 1 and the positioning plate 1 are connected by angle steel 8
The bolts are connected and fixed, and the angle steel 8 is adopted to pass through the positioning plate 1 between the angle steel 8 and the positioning plate
The bolts are fixedly connected, so that the whole assembled positioning plate 1 is ensured to be smooth and stable. Specifically, the end portions of every two positioning plates 1 to be spliced are provided with angle steel 8, so that the two angle steels 8 are connected through bolts, and the flatness of the upper end surfaces of the positioning plates 1 is guaranteed.
In the step 5), the pre-buried dowel bars 10 are checked for the types, the number, the positions and the reserved lengths, the positions, the stability and other contents of the positioning plates 1 are checked, and the next procedure is performed after all the positioning plates are qualified. In the concrete pouring process in the step 6), a specially-assigned person is responsible for viewing the reinforcement, and no people or heaps are allowed to stand on the positioning plate 1, if the personnel or the vibrating rod collides the positioning system in the concrete pouring process, the reinforcing steel bar positioning plate 1 is moved, the construction is immediately stopped, the position and the elevation of the reinforcing steel bar positioning plate are checked again, and the reinforcing steel bar positioning plate is adjusted in time. And in the process of dismantling the used system, smashing, prying and the like are strictly forbidden. After the concrete is dismantled, the sticky concrete in the pouring process is cleaned and sorted and put in order.
EXAMPLE III
The present embodiment is to verify the effect by using the techniques provided in the second embodiment and the first embodiment.
(1) Overview of the engineering
Shenyang first opening, first class section and second class section projects of Shenyang first class section and second class section are located in Shenbei New zone of Shenyang city, Zhenqiang road No. 28, and the total floor area is 7.6 ten thousand meters2Wherein, the high-rise of C-1#, C-2#, C-3#, C-4# are the prefabricated interior wall of assembled PC, the quality standard is to accord with the good standard of the national construction acceptance standard and the requirement of the engineering standard, strive for the century cup of Liaoning province. The start date is 2019, 5 months and 30 days; wherein the first segment completion date is 2021 year 10 month 31 day, and the second segment completion date is 2024 year 10 month 31 day.
(2) Engineering applications
This engineering C series high-rise residential building, the prefabricated interior wall of region for assembled PC above 4 layers, for improving positioning accuracy and installation rate, uses the utility model discloses the time limit for a project has effectively been practiced thrift to the technique that first and second embodiment provided to realized positioning system's 100% turnover use between each building, improved the quality, practiced thrift the cost, accumulated simultaneously the utility model discloses an implement the experience.
The above-mentioned embodiments only represent the embodiments of the present invention, but can not be understood as the limitation of the scope of the present invention, and it should be noted that, for those skilled in the art, a plurality of variations and improvements can be made without departing from the concept of the present invention, and all of them belong to the protection scope of the present invention.
Claims (4)
1. A modularized turnover prefabricated inner wall dowel positioning system is characterized by comprising a positioning plate, supporting legs, positioning nuts and fastening butterfly nuts, wherein the positioning plate, the supporting legs are arranged at the lower parts of the positioning plate in sequence from top to bottom; the positioning plate is of a rectangular plate-shaped structure, and embedded dowel positioning holes and vibrating holes are sequentially and alternately arranged in the length direction of the positioning plate; the supporting legs comprise cross rods horizontally penetrating through the positioning plates and vertical rods fixedly connected to two ends of the cross rods, and the positioning nuts and the butterfly nuts are arranged on the two vertical rods; a sleeve is further sleeved on the vertical rod and above the positioning nut, and an adjusting screw is screwed at the lower end of the vertical rod; the locating plates are arranged in a plurality of numbers and are connected through equal angle steel.
2. The modular turnover prefabricated inner wall dowel positioning system is characterized in that bolt penetrating holes are formed in the end portion of the positioning plate and the angle steel, and fixing bolts penetrate through the penetrating holes of the positioning plate and the angle steel to achieve connection.
3. The modular turnover prefabricated interior wall joint bar positioning system of claim 1, wherein the supporting legs are symmetrically arranged at the lower part of the positioning plate and close to the two ends respectively.
4. The modular turnaround prefabricated interior wall joint bar positioning system of claim 1, wherein the sleeve upper end is positioned above a floor slab concrete casting work surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021104942.1U CN212897652U (en) | 2020-06-16 | 2020-06-16 | Modularized turnover prefabricated inner wall joint bar positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021104942.1U CN212897652U (en) | 2020-06-16 | 2020-06-16 | Modularized turnover prefabricated inner wall joint bar positioning system |
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| Publication Number | Publication Date |
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| CN212897652U true CN212897652U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021104942.1U Expired - Fee Related CN212897652U (en) | 2020-06-16 | 2020-06-16 | Modularized turnover prefabricated inner wall joint bar positioning system |
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| Country | Link |
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| CN (1) | CN212897652U (en) |
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2020
- 2020-06-16 CN CN202021104942.1U patent/CN212897652U/en not_active Expired - Fee Related
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