CN214942026U - Pipe well prefabricated plate - Google Patents
Pipe well prefabricated plate Download PDFInfo
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- CN214942026U CN214942026U CN202121692220.7U CN202121692220U CN214942026U CN 214942026 U CN214942026 U CN 214942026U CN 202121692220 U CN202121692220 U CN 202121692220U CN 214942026 U CN214942026 U CN 214942026U
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Abstract
The utility model discloses a pipe well precast slab, which comprises a precast slab arranged at the inner side of a frame beam a, wherein the precast slab is a clear water concrete slab, a single-layer bidirectional reinforcing steel bar b is arranged in the precast slab, fiber nets are laid on the bottom surface and the top surface of the precast slab, a plurality of reserved through holes which are arranged at equal intervals and a plurality of reserved detachable holes which are arranged at equal intervals are arranged on the precast slab, and a hanging ring is pre-embedded on the upper end surface of the precast slab; the prefabricated plate structure is characterized by further comprising L-shaped angle steel used for wrapping four corners of the prefabricated plate, and the L-shaped angle steel is welded and fixed with the main bars of the frame beams a around through positioning steel bars respectively. The prefabricated plate of the utility model is produced by factory prefabrication processing and has the characteristics of high plate precision, accurate reserved hole, good molding impression effect and the like; the design has the hole of dismantling in advance, has solved the differentiation of the interior prefabricated plate of same tube well, has reduced the prefabrication cost.
Description
Technical Field
The utility model relates to a building engineering construction technical field, more specifically say, relate to a tube well prefabricated plate, be applicable to the interior sheathed tube accurate reservation of tube well, can guarantee the riser installation sleeve pipe placed in the middle.
Background
The pre-buried mode that adopts the structure is pre-buried usually to traditional tube well interior sleeve pipe reservation, and the tube well leads to long about according to the building height again, can be bigger and bigger along with reserving its accumulative error of pre-burying at every turn, and the riser installation must be the vertically again, consequently often can appear the later stage and chisel and beat the phenomenon that the structure comes the reaming. In addition, in order to ensure that the pipe well embedded sleeves are completely consistent from top to bottom, 1) the perpendicularity is controlled by adopting a later-stage structure hole opening mode to ensure the installation precision of the vertical pipe, a large amount of labor cost is required, and the hole opening can cut steel bars in the plate to influence the integrity of a structural floor slab; 2) by adopting the form of a steel formwork, after concrete pouring is finished, angle irons are installed on the periphery of a frame beam, then steel plates are laid, sleeves are installed after holes are formed in the steel plates, and finally concrete is poured, so that a large amount of cost is required, and the steel plates need to be subjected to fireproof and antirust treatment.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model aims to provide a pipe well prefabricated plate, which is designed and installed in an assembly manner, is prefabricated and processed in a factory, has high prefabrication precision, convenient installation, economy and practicability and good popularization; the design has the hole of dismantling in advance, has solved the differentiation of the interior prefabricated plate of same tube well, has reduced the prefabrication cost.
In order to further realize the above purpose, the utility model adopts the following technical scheme: a pipe well precast slab comprises a precast slab which is arranged on the inner side of a frame beam a at the periphery, wherein the precast slab is a fair-faced concrete slab, a single-layer bidirectional reinforcing steel bar b is arranged in the precast slab, fiber nets are laid on the bottom surface and the top surface of the precast slab, a plurality of reserved through holes which are distributed at equal intervals and a plurality of reserved detachable holes which are distributed at equal intervals are arranged on the precast slab, and a hanging ring is embedded in the upper end surface of the precast slab; the prefabricated plate structure is characterized by further comprising L-shaped angle steel used for wrapping four corners of the prefabricated plate, and the L-shaped angle steel is welded and fixed with the main bars of the frame beams a around through positioning steel bars respectively.
Preferably, the steel bar retaining structure further comprises prefabricated retaining strips, wherein reinforcing steel bar grooves are formed in the prefabricated retaining strips, and 1 steel bar groove is formed in each prefabricated retaining strip
And the steel bars are bonded on the precast slab through marble glue or epoxy resin glue.
Preferably, the laser target plate is a plastic transparent plate, a target center auxiliary line is printed on the surface of the laser target plate, the length of the plastic lantern ring is 2CM, and the plastic lantern ring is embedded into the reserved through hole and fixed in the positioning plate.
Preferably, the reserved detachable holes are non-through holes, and the plate thickness of the hole area is 3 mm.
Preferably, the diameter of the reserved through hole and the diameter of the reserved detachable hole are larger than the diameter of the sleeve by 2 cm.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
(1) the method is suitable for factory prefabrication processing production, has the characteristics of high plate precision, accurate reserved holes, good molding impression effect and the like, is simple in process, and can save labor cost.
(2) The design has the hole of dismantling in advance, has solved the differentiation of the interior prefabricated plate of same tube well, has reduced the prefabrication cost.
(3) Compared with a steel formwork construction method, the precast slab is a GRC fair-faced concrete slab, has higher compressive strength, is produced in batches, does not need differential secondary processing, can serve as a template in the early stage, has a fair-faced concrete effect in the later stage after pouring and forming, does not need decorative treatment, and is exquisite and attractive.
(4) Compared with the traditional cast-in-place concrete embedded casing, the deviation adjusting opportunity is 2 times, and the deviation adjustment is performed by creating a clearance of 2cm on each side of the precast slab through increasing the beam width by 8cm and reducing the slab by 2cm when the precast slab is installed for the 1 st time; and secondly, the design of the preformed hole of the prefabricated plate is 2cm larger than the pipe diameter of the embedded sleeve, and deviation adjustment is carried out by adjusting the sleeve. The embedded precision of the sleeve can be ensured through 2 times of deviation adjustment.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a sectional view of a prefabricated structure of the present invention;
FIG. 2 is a front view of the present invention in place;
FIG. 3 is a front view of the prefabricated panels of the present invention after the installation and before the pouring of concrete;
FIG. 4 is a schematic diagram of the precast slab of the present invention after the concrete pouring of the floor is completed;
FIG. 5 is a perspective view of the present invention in place;
FIG. 6 is a perspective view of the prefabricated panels of the present invention after the installation and before the pouring of concrete;
FIG. 7 is a perspective view of the sleeve installed after the concrete is poured on the floor;
FIG. 8 is a perspective view of the second pouring of concrete in the pipe well after the installation of the vertical pipe of the present invention;
fig. 9 is a perspective view of the sleeve of the present invention;
FIG. 10 is a perspective view of the prefabricated panels of the present invention for filling gaps;
fig. 11 is a plan view of the positioning plate of the present invention;
fig. 12 is a sectional view of the positioning plate of the present invention;
fig. 13 is a schematic plan view of the positioning of the precast slab according to the present invention.
In the figure: 1. the beam comprises frame beams a and 2, beam widened parts, 3, precast slabs, 4, L-shaped angle steel, 5, precast stop bars, 6, reinforcing steel bars a and 7, frame beams b and 8, beam side templates, 9, reserved through holes, 10, sleeves, 11, vertical pipes, 12, pipe well concrete slabs, 13, positioning reinforcing steel bars, 14, hanging rings, 15, construction joints, 16, fiber nets, 17, reinforcing steel bars b and 18, reserved detachable holes, 19, positioning plates, 20, laser target plates, 21 and plastic lantern rings.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
The utility model provides a tube well prefabricated plate, as shown in fig. 1-13, including prefabricated plate 3 to the GRC clear water concrete slab of 1500mm 30mm thick explains as an example, GRC clear water concrete slab has intensity more than 40Mpa, embeds there is the intensity
The two-way reinforcing bar b17 of individual layer, fibre web 16 prevents the panel surface crack is all laid to bottom surface and top surface, and sees the face to be the clear water concrete effect, and later stage face need not to decorate and handles, beautifully just can save the decorative expense.
The thickness of the tube well plate of the present invention is described by taking 100mm as an example. After the prefabricated plate 3 is installed in place, the bottom surface is a viewing surface. The prefabricated plate 3 comprises a steel bar b17, a fiber net 16, L-shaped angle steel 4, a reserved through hole 9, a reserved detachable hole 18, a hanging ring 14 and a prefabricated stopping strip 5, the L-shaped angle steel 4 wraps four corners of the prefabricated plate 3, the diameter of the reserved through hole 9 and the reserved detachable hole 18 is enlarged by 2cm on the size of a sleeve 10 designed on a drawing so as to adjust installation errors, the prefabricated plate 3 is finely adjusted and positioned by a positioning plate 19, and the prefabricated holes are guaranteed to be concentric from top to bottom. The prefabricated stop strip 5 is fixedly bonded with the prefabricated plate 3. The precast slabs 3 are hoisted to the corresponding pipe well area by a tower crane or a crane to be in place through the pre-buried hoisting rings 14 and are well positioned by manual adjustment, and then are welded and fixed with the main bars of the frame beams a1 at the four corners on the L-shaped angle steels 4 pre-buried at the four corners by adopting positioning steel bars 13, so that the displacement generated in the concrete pouring process is prevented.
The utility model discloses a prefabricated shelves strip 5's preparation material is the same with prefabricated plate 3, and prefabricated shelves strip 5 upper and lower design has the reinforcing bar recess, and 1 root of internal complex
The steel bar, for example, marble glue or epoxy resin glue, bonds the precast bars 5 to the precast slab 3. The utility model discloses the thick 100mm that is of board, prefabricated plate 3 thickness 30mm, so prefabricated shelves strip 5 is high for 70 mm. The prefabricated shelves 5 do not need to be dismantled.
The utility model discloses a locating plate 19 comprises laser target plate 20 and the plastics lantern ring 21, and laser target plate 20 is the plastics transparent plate, and the surface is printed on the centre of a target auxiliary line, and plastics lantern ring 21 pipe diameter is with reserving the hole 9 pipe diameter that link up, and plastics lantern ring 21 length is about 2CM, can imbed and reserve in the hole 9 that link up make locating plate 19 can not remove can.
The utility model discloses in, reserve and to dismantle hole 18 and be the design of non-link up, the regional thick 3mm that is of plate of this hole.
In the present invention, the positioning bar 13 is illustrated by taking a bar with a diameter of 12mm as an example.
The frame beam a1 is in a steel bar framework state before concrete pouring, and the frame beam b7 is in a state after the concrete pouring of the frame beam a1 is completed.
The utility model discloses drawn reinforcing bar is arranged in the drawing and is the sign to actual construction drawing is accurate.
The utility model discloses a solve prefabricated plate 3's anchor and four sides and expose the problem, adopt following measure:
1) the tube well perimeter frame beam a1 increases the beam width by 8cm in the tube well area and the precast panel 3 size is reduced by 2cm on each side compared to the structural panel net size, i.e. in the case of a seam, the precast panel 3 rests 6cm on each side on the frame beam a1 beam widening 2.
2) The beam widening part 2 adopts U-shaped opening stirrups with distributed reinforcing steel bars, and structural requirements can be met.
3) After the concrete pouring is completed, the prefabricated panels 3 are embedded in the frame beams b7, and the appearance is a decorative ceiling with a fair-faced concrete effect.
For the differentiation problem of solving different floor tube well prefabricated plates, the utility model discloses a following measure:
with the same tube well, the riser 11 quantity of different floors is different, generally along with the increase progressively of floor, the quantity of riser 11 is reducing in the tube well, for reducing the 3 differentiation of prefabricated plate, reduces prefabricated cost, makes things convenient for 3 productions of prefabricated plate to process, the utility model discloses prefabricated plate 3 refers to the floor that riser 11 is minimum in the same tube well and reserves through hole 9, refers to the floor that riser 11 is the most in the same tube well, and except reserving through hole 9, other holes are reservation detachable hole 18. The thickness of the plate in the area where the detachable holes 18 are reserved is only 3mm, the reserved detachable holes 18 are knocked into through holes according to different design quantities of the vertical pipes 11 on different floors, and the requirement that the prefabricated plates 3 with the same modulus in the same pipe well can be applied to all floors is met.
The utility model provides a tubular well prefabricated plate, its mounting method is as follows:
first, the current floor prefabricated panel 3 is prepared. According to the number of the stand pipes 11 in the pipe well of the current floor in the drawing, the number of the through holes in the prefabricated plate 3 is adjusted, and the specific operation is that the reserved detachable holes 18 needing to be through are selected and beaten into the through holes.
And secondly, fixing the prefabricated stop bars 5. The prefabricated shelves 5 are fixed at least 1 day ahead of time, and are bonded to the four sides of the prefabricated slab 3 by marble adhesive or epoxy resin adhesive.
Thirdly, the prefabricated plate 3 is in place. After the frame beam a1 around the pipe well and the templates and the steel bars of the beam widened part 2 are bound, hoisting the pipe well to a position on the pipe well on a floor by a tower crane through a hoisting ring pre-embedded by the precast slab, and placing the precast slab 3 on the beam side templates 8 around the frame beam a 1.
Fourthly, the prefabricated plate 3 is positioned. The prefabricated plate 3 is installed for the first time only by measuring and positioning the distances from the structural size to the four sides of the prefabricated plate 3. And in the second and later installation, accurate positioning is required, and the accumulative error of the concentric circles of the reserved holes on the precast slab 3 is controlled. 2 positioning plates 19 are respectively placed on the prefabricated plate 3 of the construction layer and the prefabricated plate 3 of the lower-layer finished structure layer, two holes with the opposite angles or the farthest distance are selected as the reserved through holes 9 in the prefabricated plate 3, the centers of the 2 positioning plates 19 on the prefabricated plate 3 of the lower layer are respectively aligned through 2 laser plummet (taking DZJ200 as an example), and laser points are simultaneously projected to the positioning plates 19 on the prefabricated plate 3 of the upper layer (construction layer). When the centers of the 2 positioning plates 19 are aligned at the same time, the prefabricated plate 3 is positioned. And finally, the angle steels 4 at four corners of the precast slab 3 and the main rib of the frame beam a1 are welded and fixed through the positioning steel bars 13, so that the precast slab 3 is not moved in the concrete pouring process.
And fifthly, pouring the concrete of the frame beam a1 together with the concrete of the building.
Sixth, the sleeve 10 is positioned. After concrete pouring and floor frame dismantling, the sleeves 10 are installed layer by layer, wing rings are arranged in the middle of the sleeves 10, the plate steel bars a6 are arranged on the reserved holes, the plate steel bars a6 are hammered by a hammer to bypass the reserved holes, finally the sleeves 10 with the wing rings are placed on the prefabricated plates 3, the positioning plates 19 are embedded into the sleeves 10, in order to ensure the installation accuracy of the final vertical pipe 11, the sleeves 10 are installed for more than 4 layers at one time, and after the sleeves 10 are positioned, the sleeves are welded and fixed with the plate steel bars a6 to prevent deviation. The mounting method is the same as the fourth step.
And seventhly, pouring the pipe well concrete plate 12. And (3) pouring the pipe well concrete slab 12, wherein the wing ring is arranged in the middle of the sleeve 10, so that the preformed holes on the precast slabs 3 are naturally blocked, and the concrete cannot leak in the pouring process.
And step eight, finishing the surface of the sleeve 10. After the sleeve 10 is embedded and the pipe well concrete slab 12 is poured, a structural joint 15 is reserved at the position of a hole reserved on the precast slab 3 and between the viewing surface side and the sleeve wing ring, the hole is filled with foaming glue, and finally, weather-resistant glue with the color similar to that of the viewing surface of the precast slab 3 is used for seam beautifying.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (5)
1. The tube well precast slab is characterized by comprising a precast slab (3) arranged on the inner side of a frame beam a (1) at the periphery, wherein the precast slab (3) is a bare concrete slab, a single-layer bidirectional steel bar b (17) is arranged in the precast slab, fiber nets (16) are laid on the bottom surface and the top surface of the precast slab (3), a plurality of reserved through holes (9) which are distributed at equal intervals and a plurality of reserved detachable holes (18) which are distributed at equal intervals are arranged on the precast slab (3), and a hanging ring (14) is embedded on the upper end surface of the precast slab (3); the prefabricated plate structure is characterized by further comprising L-shaped angle steel (4) used for wrapping four corners of the prefabricated plate (3), wherein the L-shaped angle steel (4) is welded and fixed with the main ribs of the frame beam a (1) on the periphery through positioning steel bars (13).
2. The tube well prefabricated plate according to the claim 1, further comprising prefabricated stopping strips (5), wherein the prefabricated stopping strips (5) are provided with steel bar grooves at the upper and lower parts, 1 steel bar is arranged in the prefabricated stopping strips, and the prefabricated stopping strips are bonded on the prefabricated plate (3) through marble glue or epoxy resin glue.
3. The tube well prefabricated plate according to claim 1, further comprising a positioning plate (19), wherein the positioning plate (19) comprises a laser target plate (20) and a plastic collar (21), a target line is printed on the surface of the laser target plate (20), and the length of the plastic collar (21) is 2CM, and the plastic collar is used for being embedded into the reserved through hole (9) to fix the positioning plate (19).
4. The tube well prefabricated plate according to the claim 1, characterized in that the reserved detachable holes (18) are non-through holes, and the thickness of the holes is 3 mm.
5. The tube well prefabricated plate according to claim 1, characterized in that the diameter of the through-reserved hole (9) and the detachable reserved hole (18) is 2cm larger than the diameter of the casing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121692220.7U CN214942026U (en) | 2021-07-24 | 2021-07-24 | Pipe well prefabricated plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121692220.7U CN214942026U (en) | 2021-07-24 | 2021-07-24 | Pipe well prefabricated plate |
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| Publication Number | Publication Date |
|---|---|
| CN214942026U true CN214942026U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121692220.7U Active CN214942026U (en) | 2021-07-24 | 2021-07-24 | Pipe well prefabricated plate |
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| CN (1) | CN214942026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856195A (en) * | 2022-06-06 | 2022-08-05 | 中建八局深圳科创发展有限公司 | Post-pouring construction method for floor slab at building pipe well |
-
2021
- 2021-07-24 CN CN202121692220.7U patent/CN214942026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856195A (en) * | 2022-06-06 | 2022-08-05 | 中建八局深圳科创发展有限公司 | Post-pouring construction method for floor slab at building pipe well |
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