CN116397904A - Positioning method of positioning mechanism for reserved steel sleeve on cast-in-situ floor plate of high-rise building - Google Patents

Positioning method of positioning mechanism for reserved steel sleeve on cast-in-situ floor plate of high-rise building Download PDF

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Publication number
CN116397904A
CN116397904A CN202310677197.1A CN202310677197A CN116397904A CN 116397904 A CN116397904 A CN 116397904A CN 202310677197 A CN202310677197 A CN 202310677197A CN 116397904 A CN116397904 A CN 116397904A
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positioning
steel sleeve
embedded steel
pressing plate
hole
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CN116397904B (en
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米振国
耿秋红
张健
秦伟
李云栓
李英霞
郝涛瑞
和玉东
刘桓溥
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Shanxi Sanjian Group Co Ltd
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Shanxi Sanjian Group Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • E04G21/16Tools or apparatus
    • E04G21/18Adjusting tools; Templates
    • E04G21/1841Means for positioning building parts or elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/04Cores for anchor holes or the like around anchors embedded in the concrete
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The invention discloses a positioning method of a positioning mechanism for reserving steel sleeves on a cast-in-place floor plate of a high-rise building, which solves the problem of how to develop an accurate positioning mechanism for steel sleeves, uses the same positioning datum line to determine the central position of holes of each floor plate and realize the accurate positioning of reserved holes among floors, and belongs to the technical field of templates in civil engineering.

Description

Positioning method of positioning mechanism for reserved steel sleeve on cast-in-situ floor plate of high-rise building
Technical Field
The invention relates to a reserved hole on a cast-in-situ floor plate, in particular to a positioning method for a positioning mechanism of a reserved steel sleeve on a cast-in-situ floor plate of a high-rise building before casting construction.
Background
For the building body of the high-rise cast-in-place concrete shear wall structure, a standard aluminum template is generally adopted for pouring the floor plate, and a water supply pipe penetrating hole and a water drain pipe penetrating hole are reserved on each floor plate for installing the water supply pipe and the water drain pipe; for the reserved holes, in the prior art, a steel sleeve is positioned and fixed on a floor plate pouring aluminum template, so that a pipe penetrating hole of a water supply pipe and a water drainage pipe is reserved in floor plate pouring; according to design requirements, the center vertical lines of the reserved pipe penetrating holes on each floor slab are coincident so as to ensure the smooth proceeding of the later pipe penetrating; in site construction, because the cast-in-situ shear wall high-rise building is built and poured from bottom to top layer by layer, after the pouring templates of each layer of floor slabs are built, the layer of steel sleeve is positioned on the floor pouring aluminum templates by using a tape measure, and the steel sleeve is positioned and installed by being connected with surrounding floor steel bars; the existing positioning method of the steel sleeve has the defect that errors are easy to occur in positioning; particularly, the independent positioning mode of the steel sleeves of each floor is easy to cause the deviation of the positioning of the steel sleeves on two adjacent floors, and because the high-rise building has the height of tens of floors, the accumulation of the deviation amounts layer by layer can form larger positioning errors, and the misalignment of the central axes of the reserved holes of the steel sleeves between floors is increased, so that the later-stage drain pipe is difficult to install; in addition, the bottom surface or top surface of the bottom opening of the steel pipe is not perpendicular to the central axis of the steel pipe frequently in the processing process of the steel pipe, so that the steel pipe is inclined when being fixed on an aluminum template, reserved holes are inclined and accumulated layer by layer, offset errors are larger and larger, a later water supply and drainage pipeline cannot be installed, and the later secondary drilling processing is needed, so that engineering cost is increased; how to develop an accurate positioning mechanism for steel sleeves, which uses the same positioning datum line to determine the center position of holes of all floor plates and realize the accurate positioning of reserved holes among floors, has become a problem to be solved on site.
Disclosure of Invention
The invention provides a positioning method of a positioning mechanism for reserving steel sleeves on a cast-in-situ floor plate of a high-rise building, which solves the technical problems of how to develop an accurate positioning mechanism for the steel sleeves, determine the center positions of holes of all floor plates by using the same positioning datum line, and realize the accurate positioning of reserved holes among floors.
The invention solves the technical problems by the following technical proposal:
the general conception of the invention is that: and positioning the steel sleeves on the pouring bottom templates of all floor plates by using the same vertical positioning reference infrared rays, so that the coincidence of the central vertical lines of the pre-buried steel sleeves in all floor plates is realized.
The positioning mechanism comprises a poured basement floor and a first floor pouring bottom template, wherein a datum point of a central axis of a vertical drain pipe is arranged on the basement floor, a central positioning through hole of a first embedded steel sleeve is arranged on the first floor pouring bottom template, an infrared transmitter bracket is arranged on the basement floor, an infrared transmitter is arranged on the infrared transmitter bracket, vertical infrared datum lines emitted by the infrared transmitter are respectively overlapped with the datum point of the central axis of the vertical drain pipe, and the central axis of the central positioning through hole of the first embedded steel sleeve; the central positioning through hole of the first embedded steel sleeve is connected with a first hollow screw in a penetrating way, four first embedded steel sleeve positioning steel nails are arranged on the first floor plate pouring bottom template at the outer side of the first hollow screw in an equidistant radian way, the outer sides of the four first embedded steel sleeve positioning steel nails are sleeved with first embedded steel sleeves, the top port of the first embedded steel sleeve is provided with a first positioning pressing plate, the first positioning pressing plate is provided with a first positioning pressing plate central through hole, the upper end of the first hollow screw is connected with the first positioning pressing plate central through hole in a penetrating way, a second locking nut is arranged between the upper end of the first hollow screw and the upper top surface of the first positioning pressing plate, a first locking nut is arranged between the lower end of the first hollow screw and the bottom end surface of the first floor plate pouring bottom template, and the central axis of the first embedded steel sleeve and the central axis of the first hollow screw are overlapped with vertical infrared reference lines.
The method comprises the steps that a second floor plate pouring bottom template is arranged above a first floor plate pouring bottom template, a central positioning through hole of a second embedded steel sleeve is formed in the second floor plate pouring bottom template, a second hollow screw rod is connected in the central positioning through hole of the second embedded steel sleeve in a penetrating mode, four second embedded steel sleeve positioning steel nails are arranged on the second floor plate pouring bottom template outside the second hollow screw rod in an equidistant radian mode, a second embedded steel sleeve is sleeved on the outer side of the four second embedded steel sleeve positioning steel nails, a second positioning pressing plate is arranged on the top port of the second embedded steel sleeve, a second positioning pressing plate central through hole is formed in the second positioning pressing plate, the upper end of the second hollow screw rod is connected in the second positioning pressing plate central through hole in a penetrating mode, a fourth locking nut is arranged between the upper end of the second hollow screw rod and the upper top surface of the second positioning pressing plate, a third locking nut is arranged between the lower end of the second hollow screw rod and the bottom surface of the second floor plate in a equidistant mode, and the central axis of the second embedded steel sleeve is perpendicular to the central axis of the second positioning pressing plate.
The positioning method of the positioning mechanism for the reserved steel sleeve on the cast-in-place floor plate of the high-rise building comprises a basement floor plate and a first floor plate casting bottom template, wherein the basement floor plate is provided with a datum point vertical to the central axis of a drain pipe, and the first floor plate casting bottom template is provided with a central positioning through hole of a first embedded steel sleeve, and is characterized by comprising the following steps:
the method comprises the steps that firstly, an infrared emitter bracket is erected on a basement floor, an infrared emitter is arranged on the infrared emitter bracket, and a vertical infrared datum line emitted by the infrared emitter coincides with a datum point of a central axis of a vertical drain pipe;
step two, a first floor plate pouring bottom template is erected, and the central axis of a central positioning through hole of a first embedded steel sleeve arranged on the first floor plate pouring bottom template coincides with a vertical infrared datum line;
third, taking the central axis of the central positioning through hole of the first embedded steel sleeve as the center of a circle, and arranging the first embedded steel sleeve on the top end surface of the first floor plate pouring bottom template, wherein the concrete method comprises the following steps: drawing a positioning circle on the top end surface of the first floor slab pouring bottom template by taking the central positioning through hole as the center and the inner diameter of the first embedded steel sleeve as the diameter, and uniformly-spacing radian ground nailing four first embedded steel sleeve positioning steel nails on the positioning circle; sleeving the first embedded steel sleeves on four first embedded steel sleeve positioning steel nails, and positioning and installing the first embedded steel sleeves on the top end surface of the first floor slab pouring bottom template;
a fourth step of respectively manufacturing a first hollow screw and a first positioning pressing plate, wherein a first positioning pressing plate central through hole is formed in the center of the first positioning pressing plate, so that the aperture of the first positioning pressing plate central through hole and the outer diameter of the first hollow screw are equal to the aperture of the first pre-buried steel sleeve central positioning through hole; placing a first positioning pressing plate on the upper port of the first embedded steel sleeve, enabling the lower end of the first hollow screw rod to sequentially penetrate through a first positioning pressing plate center through hole, the first embedded steel sleeve and the center positioning through hole on the first positioning pressing plate along the direction from top to bottom, and then enabling the central axis of the first hollow screw rod to coincide with a vertical infrared datum line by adjusting the gap between the bottom template of the first layer floor pouring bottom template and the bottom end port of the first embedded steel sleeve and the gap between the top port of the first embedded steel sleeve and the first positioning pressing plate respectively, and finally enabling the first hollow screw rod to be fixedly connected with the first positioning pressing plate through the second locking nut at the upper end of the first hollow screw rod in a threaded manner, and enabling the first hollow screw rod to be fixedly connected with the first layer floor pouring bottom template through the first locking nut at the lower end of the first hollow screw rod in a threaded manner;
and fifthly, pouring the concrete of the first floor slab, and pouring and fixing the first embedded steel sleeve in the first floor slab.
Step six, erecting a second floor plate pouring bottom template above the first floor plate pouring bottom template, and arranging a center positioning through hole of a second embedded steel sleeve on the second floor plate pouring bottom template;
a seventh step of drawing a positioning circle on the top end surface of the second floor plate pouring bottom template by taking the central positioning through hole of the second embedded steel sleeve as the center of a circle and the inner diameter of the second embedded steel sleeve as the diameter, arranging four second embedded steel sleeve positioning steel nails on the positioning circle at equal intervals in radian, and sleeving the outer sides of the four second embedded steel sleeve positioning steel nails with the second embedded steel sleeve;
eighth, respectively manufacturing a second hollow screw and a second positioning pressing plate, wherein a central through hole of the second positioning pressing plate is arranged in the center of the second positioning pressing plate, so that the aperture of the central through hole of the second positioning pressing plate and the outer diameter of the second hollow screw are equal to the aperture of the central positioning through hole of the second embedded steel sleeve; setting a second positioning pressing plate on the top port of the second embedded steel sleeve, enabling the lower end of the second hollow screw rod to sequentially penetrate through a second positioning pressing plate center through hole, the second embedded steel sleeve and the second embedded steel sleeve center positioning through hole on the second positioning pressing plate along the direction from top to bottom, and enabling the central axis of the second hollow screw rod to coincide with a vertical infrared datum line by adjusting the gap between the second layer floor pouring bottom template and the bottom port of the second embedded steel sleeve and the gap between the top port of the second embedded steel sleeve and the second positioning pressing plate respectively, and finally enabling the second hollow screw rod to be fixedly connected with the second positioning pressing plate through screwing a fourth locking nut on the upper end of the second hollow screw rod and enabling the second hollow screw rod to be fixedly connected with the second layer floor pouring bottom template through screwing a third locking nut on the lower end of the second hollow screw rod;
and ninth, pouring the concrete of the second floor slab, and pouring and fixing the second embedded steel sleeve in the second floor slab.
Tenth, the first hollow screw and the first positioning pressing plate are disassembled for standby by disassembling the first locking nut and the second locking nut;
eleventh step, setting up a third floor slab pouring bottom template, on the third floor slab pouring bottom template, according to the steps from the second step to the fourth step, completing the positioning of the third embedded steel sleeve on the floor slab, and positioning and pouring and fixing the third embedded steel sleeve in the third floor slab by repeatedly using the first lock nut, the second lock nut, the first hollow screw and the first positioning pressing plate.
The invention is particularly suitable for the construction of high-rise residential buildings by adopting aluminum templates, solves the inaccuracy of the positions of the reserved holes and the embedded steel sleeves, avoids the problems of later hole drilling and hole expansion, and also lays a foundation for the root of the later waterproof construction sleeve; the construction process is simple, the construction cost is low, and the construction efficiency is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the positioning structure of the first embedded steel sleeve 9 of the present invention on the first floor slab casting bottom formwork 6;
FIG. 3 is a schematic view of the positioning structure of the second embedded steel sleeve 18 of the present invention on the second floor slab casting bottom mold plate 23;
fig. 4 is a schematic view of the positioning structure of the third embedded steel sleeve 24 of the present invention on the third floor slab casting bottom mold 25.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
the positioning mechanism for the reserved steel sleeve on the cast-in-place floor plate of the high-rise building comprises a basement floor plate 1 and a first floor plate casting bottom template 6 which are cast, wherein a datum point 2 perpendicular to the central axis of the drain pipe is arranged on the basement floor plate 1, a central positioning through hole 7 of a first embedded steel sleeve is arranged on the first floor plate casting bottom template 6, an infrared transmitter bracket 3 is arranged on the basement floor plate 1, an infrared transmitter 4 is arranged on the infrared transmitter bracket 3, and a perpendicular infrared datum line 5 emitted by the infrared transmitter 4 is respectively overlapped with the datum point 2 perpendicular to the central axis of the drain pipe and the central axis of the central positioning through hole 7 of the first embedded steel sleeve; the central positioning through hole 7 of the first embedded steel sleeve is penetrated with a first hollow screw rod 8, the first floor plate pouring bottom template 6 outside the first hollow screw rod 8 is provided with four first embedded steel sleeve positioning steel nails 14 at equal intervals in a radian manner, the outer sides of the four first embedded steel sleeve positioning steel nails 14 are sleeved with first embedded steel sleeves 9, the top port of the first embedded steel sleeve 9 is provided with a first positioning pressing plate 10, the first positioning pressing plate 10 is provided with a first positioning pressing plate central through hole 11, the upper end of the first hollow screw rod 8 is penetrated into the first positioning pressing plate central through hole 11, a second locking nut 13 is arranged between the upper end of the first hollow screw rod 8 and the upper top surface of the first positioning pressing plate 10, a first locking nut 12 is arranged between the lower end of the first hollow screw rod 8 and the bottom end surface of the first floor plate pouring bottom template 6, and the central axis of the first embedded steel sleeve 9 and the central axis of the first hollow screw rod 8 are overlapped with the vertical infrared light 5.
The first floor plate pouring bottom formwork 6 is provided with a second floor plate pouring bottom formwork 23 above, the second floor plate pouring bottom formwork 23 is provided with a second pre-buried steel sleeve center positioning through hole 15, a second hollow screw 16 is connected in the second pre-buried steel sleeve center positioning through hole 15 in a penetrating manner, four second pre-buried steel sleeve positioning steel nails 17 are arranged on the second floor plate pouring bottom formwork 23 on the outer side of the second hollow screw 16 in an equidistant radian manner, a second pre-buried steel sleeve 18 is sleeved on the outer side of the four second pre-buried steel sleeve positioning steel nails 17, a second positioning pressing plate 19 is arranged on the top end of the second pre-buried steel sleeve 18, a second positioning pressing plate center through hole 20 is arranged on the second positioning pressing plate 19, the upper end of the second hollow screw 16 is connected in the second positioning pressing plate center through hole 20 in a penetrating manner, a fourth locking nut 22 is arranged between the upper end of the second hollow screw 16 and the upper top surface of the second positioning pressing plate 19, a central axis 21 is arranged between the lower end of the second hollow screw 16 and the second floor plate pouring bottom surface 23, and the central axis 21 of the second pre-buried steel sleeve is perpendicular to the central axis of the second floor plate, and the central axis is perpendicular to the second pre-buried steel sleeve, and the central axis is arranged on the second floor plate and the central axis is perpendicular to the central axis 21.
The positioning method of the positioning mechanism for the reserved steel sleeve on the cast-in-place floor plate of the high-rise building comprises a basement floor plate 1 and a first floor plate casting bottom template 6 which are cast, wherein a datum point 2 perpendicular to the central axis of a drain pipe is arranged on the basement floor plate 1, and a central positioning through hole 7 of a first embedded steel sleeve is arranged on the first floor plate casting bottom template 6, and is characterized by comprising the following steps of:
the method comprises the steps that firstly, an infrared emitter bracket 3 is erected on a basement floor 1, an infrared emitter 4 is arranged on the infrared emitter bracket 3, and a vertical infrared datum line 5 emitted by the infrared emitter 4 is overlapped with a datum point 2 of a central axis of a vertical drain pipe;
step two, a first floor slab pouring bottom template 6 is erected, and the central axis of a central positioning through hole 7 of a first embedded steel sleeve arranged on the first floor slab pouring bottom template 6 is overlapped with a vertical infrared datum line 5;
thirdly, setting a first embedded steel sleeve 9 on the top end surface of the first floor plate pouring bottom template 6 by taking the central axis of the central positioning through hole 7 of the first embedded steel sleeve as the center, wherein the concrete method comprises the following steps: drawing a positioning circle on the top end surface of the first floor slab pouring bottom template 6 by taking the central positioning through hole 7 as the center and the inner diameter of the first embedded steel sleeve 9 as the diameter, and uniformly spacing radian ground nails of four first embedded steel sleeve positioning steel nails 14 on the positioning circle; sleeving the first embedded steel sleeves 9 on four first embedded steel sleeve positioning steel nails 14, and positioning and installing the first embedded steel sleeves 9 on the top end surface of the first floor slab pouring bottom template 6;
a fourth step of manufacturing a first hollow screw rod 8 and a first positioning pressing plate 10 respectively, wherein a first positioning pressing plate center through hole 11 is arranged at the center of the first positioning pressing plate 10, so that the aperture of the first positioning pressing plate center through hole 11 and the outer diameter of the first hollow screw rod 8 are equal to the aperture of a first pre-buried steel sleeve center positioning through hole 7; placing a first positioning pressing plate 10 on the upper port of the first embedded steel sleeve 9, enabling the lower end of the first hollow screw rod 8 to sequentially pass through a first positioning pressing plate center through hole 11, the first embedded steel sleeve 9 and the center positioning through hole 7 on the first positioning pressing plate 10 along the direction from top to bottom, and then fixedly connecting the first hollow screw rod 8 with the first positioning pressing plate 10 by adjusting the gap between the first floor slab pouring bottom formwork 6 and the bottom port of the first embedded steel sleeve 9 and the gap between the top port of the first embedded steel sleeve 9 and the first positioning pressing plate 10 so as to overcome the uneven defects of the top port and the bottom port of the first embedded steel sleeve 9, and finally enabling the central axis of the first hollow screw rod 8 to coincide with the vertical infrared datum line 5, and enabling the first hollow screw rod 8 to be fixedly connected with the first positioning pressing plate 10 by screwing a first locking nut 12 on the upper end of the first hollow screw rod 8;
and fifthly, pouring the concrete of the first floor slab, and pouring and fixing the first embedded steel sleeve 9 in the first floor slab.
Step six, erecting a second floor plate pouring bottom template 23 above the first floor plate pouring bottom template 6, and arranging a center positioning through hole 15 of a second embedded steel sleeve on the second floor plate pouring bottom template 23;
a seventh step of drawing a positioning circle on the top end surface of the second floor plate pouring bottom template 23 by taking the central positioning through hole 15 of the second embedded steel sleeve as a circle center and the inner diameter of the second embedded steel sleeve 18 as a diameter, arranging four second embedded steel sleeve positioning steel nails 17 in an equal interval radian manner on the positioning circle, and sleeving the second embedded steel sleeve 18 on the outer sides of the four second embedded steel sleeve positioning steel nails 17;
eighth, respectively manufacturing a second hollow screw 16 and a second positioning pressing plate 19, wherein a second positioning pressing plate center through hole 20 is arranged at the center of the second positioning pressing plate 19, so that the aperture of the second positioning pressing plate center through hole 20 and the outer diameter of the second hollow screw 16 are equal to the aperture of a second pre-buried steel sleeve center positioning through hole 15; setting a second positioning pressing plate 19 on the top port of the second embedded steel sleeve 18, enabling the lower end of the second hollow screw 16 to sequentially pass through a second positioning pressing plate center through hole 20, a second embedded steel sleeve 18 and a second embedded steel sleeve center positioning through hole 15 on the second positioning pressing plate 19 along the direction from top to bottom, and then enabling the central axis of the second hollow screw 16 to coincide with the vertical infrared datum line 5 by respectively adjusting the gap between a second floor pouring bottom template 23 and the bottom port of the second embedded steel sleeve 18 and the gap between the top port of the second embedded steel sleeve 18 and the second positioning pressing plate 19, and finally enabling the upper end of the second hollow screw 16 to be connected with a fourth locking nut 22 in a threaded manner, enabling the second hollow screw 16 to be fixedly connected with the second positioning pressing plate 19, and enabling the lower end of the second hollow screw 16 to be connected with a second floor pouring bottom template 23 in a threaded manner;
and ninth, pouring the concrete of the second floor slab, and pouring and fixing the second embedded steel sleeve 18 in the second floor slab.
Tenth, the first hollow screw rod 8 and the first positioning pressing plate 10 are disassembled for standby by disassembling the first locking nut 12 and the second locking nut 13;
eleventh, setting up a third floor slab pouring bottom template 25, and according to the steps from the second step to the fourth step, positioning the third embedded steel sleeve 24 on the floor slab on the third floor slab pouring bottom template 25, and positioning and pouring and fixing the third embedded steel sleeve 24 in the third floor slab by repeatedly using the first locking nut 12, the second locking nut 13, the first hollow screw 8 and the first positioning pressing plate 10.

Claims (3)

1. The positioning method of the positioning mechanism for the reserved steel sleeve on the cast-in-place floor plate of the high-rise building comprises a basement floor plate (1) which is poured and a first floor plate pouring bottom template (6), wherein a datum point (2) perpendicular to the central axis of a drain pipe is arranged on the basement floor plate (1), and a central positioning through hole (7) of a first embedded steel sleeve is arranged on the first floor plate pouring bottom template (6), and is characterized by comprising the following steps of:
the method comprises the steps that firstly, an infrared emitter bracket (3) is erected on a basement floor (1), an infrared emitter (4) is arranged on the infrared emitter bracket (3), and a vertical infrared datum line (5) emitted by the infrared emitter (4) is overlapped with a datum point (2) of a central axis of a vertical drain pipe;
step two, a first floor plate pouring bottom template (6) is erected, and the central axis of a central positioning through hole (7) of a first embedded steel sleeve arranged on the first floor plate pouring bottom template (6) is overlapped with a vertical infrared datum line (5);
the third step, regard central axis of the central location through hole (7) of the first embedded steel sleeve as the centre of a circle, on the top end face of the first floor slab pouring bottom template (6), set up the first embedded steel sleeve (9), the concrete method is: a central positioning through hole (7) is taken as the center, the inner diameter of a first embedded steel sleeve (9) is taken as the diameter, a positioning circle is drawn on the top end surface of a first floor slab pouring bottom template (6), and four first embedded steel sleeve positioning steel nails (14) are nailed on the positioning circle at equal intervals in radian; sleeving the first embedded steel sleeves (9) on four first embedded steel sleeve positioning steel nails (14), and positioning and installing the first embedded steel sleeves (9) on the top end surface of the first floor slab pouring bottom template (6);
a fourth step of manufacturing a first hollow screw (8) and a first positioning pressing plate (10) respectively, wherein a first positioning pressing plate center through hole (11) is formed in the center of the first positioning pressing plate (10), so that the aperture of the first positioning pressing plate center through hole (11) and the outer diameter of the first hollow screw (8) are equal to the aperture of a first pre-buried steel sleeve center positioning through hole (7); placing a first positioning pressing plate (10) on the upper port of the first embedded steel sleeve (9), enabling the lower end of the first hollow screw (8) to sequentially pass through a first positioning pressing plate center through hole (11), the first embedded steel sleeve (9) and the center positioning through hole (7) on the first positioning pressing plate (10) along the direction from top to bottom, and then enabling the central axis of the first hollow screw (8) to coincide with a vertical infrared datum line (5) by respectively adjusting the gap between the bottom template (6) of the first floor slab pouring base plate and the bottom port of the first embedded steel sleeve (9) and the gap between the top port of the first embedded steel sleeve (9) and the first positioning pressing plate (10), and finally enabling the first hollow screw (8) to be fixedly connected with the first positioning pressing plate (10) through a second locking nut (13) in a threaded manner at the upper end of the first hollow screw (8), and enabling the first hollow screw (8) to be fixedly connected with the first floor slab (6) through a first locking nut (12) in a threaded manner at the lower end of the first hollow screw (8);
and fifthly, pouring the concrete of the first floor slab, and pouring and fixing the first embedded steel sleeve (9) in the first floor slab.
2. The method for positioning the positioning mechanism of the reserved steel sleeve on the cast-in-situ floor plate of the high-rise building according to claim 1, wherein the method comprises the following steps of,
step six, erecting a second floor plate pouring bottom template (23) above the first floor plate pouring bottom template (6), and arranging a center positioning through hole (15) of a second embedded steel sleeve on the second floor plate pouring bottom template (23);
a seventh step of drawing a positioning circle on the top end surface of a second floor plate pouring bottom template (23) by taking a central positioning through hole (15) of a second embedded steel sleeve as a circle center and taking the inner diameter of a second embedded steel sleeve (18) as a diameter, arranging four second embedded steel sleeve positioning steel nails (17) at equal intervals in the positioning circle, and sleeving the second embedded steel sleeve (18) on the outer sides of the four second embedded steel sleeve positioning steel nails (17);
eighth, respectively manufacturing a second hollow screw (16) and a second positioning pressing plate (19), wherein a second positioning pressing plate center through hole (20) is arranged at the center of the second positioning pressing plate (19), so that the aperture of the second positioning pressing plate center through hole (20) and the outer diameter of the second hollow screw (16) are equal to the aperture of a second pre-buried steel sleeve center positioning through hole (15); setting a second positioning pressing plate (19) on the top end opening of a second embedded steel sleeve (18), enabling the lower end of a second hollow screw (16) to sequentially penetrate through a second positioning pressing plate center through hole (20), the second embedded steel sleeve (18) and a second embedded steel sleeve center positioning through hole (15) on the second positioning pressing plate (19) along the direction from top to bottom, and then enabling the central axis of the second hollow screw (16) to coincide with a vertical infrared datum line (5) by respectively adjusting the gap between a second floor slab pouring bottom formwork (23) and the bottom end opening of the second embedded steel sleeve (18) and the gap between the top end opening of the second embedded steel sleeve (19) and adjusting the gap between the top end opening of the second embedded steel sleeve (19), and finally enabling the upper end of the second hollow screw (16) to be in threaded connection with a fourth locking nut (22) to enable the second hollow screw (16) to be fixedly connected with the second positioning pressing plate (19), and enabling the lower end of the second hollow screw (16) to be in threaded connection with the second floor slab pouring bottom formwork (23);
and ninth, pouring the concrete of the second floor slab, and pouring and fixing the second embedded steel sleeve (18) in the second floor slab.
3. The method for positioning the positioning mechanism of the reserved steel sleeve on the cast-in-situ floor plate of the high-rise building according to claim 2, wherein the method comprises the following steps of,
tenth, the first hollow screw rod (8) and the first positioning pressing plate (10) are detached for standby by detaching the first locking nut (12) and the second locking nut (13);
eleventh step, setting up a third floor slab pouring bottom template (25), and on the third floor slab pouring bottom template (25), according to the steps from the second step to the fourth step, completing the positioning of a third embedded steel sleeve (24) on the floor slab, and positioning and pouring and fixing the third embedded steel sleeve (24) in the third floor slab by repeatedly using the first locking nut (12), the second locking nut (13), the first hollow screw (8) and the first positioning pressing plate (10).
CN202310677197.1A 2023-06-08 2023-06-08 Positioning method of positioning mechanism for reserved steel sleeve on cast-in-situ floor plate of high-rise building Active CN116397904B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310677197.1A CN116397904B (en) 2023-06-08 2023-06-08 Positioning method of positioning mechanism for reserved steel sleeve on cast-in-situ floor plate of high-rise building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310677197.1A CN116397904B (en) 2023-06-08 2023-06-08 Positioning method of positioning mechanism for reserved steel sleeve on cast-in-situ floor plate of high-rise building

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