CN108729591B - Positioning device and positioning method for vertically distributed connecting steel bars of round hole plate shear wall - Google Patents

Positioning device and positioning method for vertically distributed connecting steel bars of round hole plate shear wall Download PDF

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Publication number
CN108729591B
CN108729591B CN201810491959.8A CN201810491959A CN108729591B CN 108729591 B CN108729591 B CN 108729591B CN 201810491959 A CN201810491959 A CN 201810491959A CN 108729591 B CN108729591 B CN 108729591B
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distributed
steel bars
positioning
round hole
iron wire
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CN108729591A (en
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王福阳
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Fanlin Assembly Building Technology Co.,Ltd.
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Jilin Jianzhu University
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/18Spacers of metal or substantially of metal

Abstract

The invention relates to a positioning device and a positioning method for vertically distributed connecting steel bars of a round hole plate shear wall, belonging to the technical field of building engineering.A steel wire is adopted for manufacturing, the vertically distributed connecting steel bars are wound to form a closed ring, a prefabricated concrete round hole plate shear wall plate and a template or a laminated slab bottom plate of a floor slab are installed, the lower part of the positioning steel bars of the vertically distributed connecting steel bars with steel wire rings is inserted into a hollow hole of the prefabricated concrete round hole plate shear wall plate from the upper side, so that long positioning steel bars and short positioning steel bars are abutted against the top end outside the hollow hole, two steel wire rings are respectively arranged in the hollow hole of the prefabricated concrete round hole plate shear wall plate, and the positions of the vertically distributed connecting steel bars are limited; and pouring cast-in-place concrete into the hollow holes of the precast concrete round hole plate shear wall plate, and finishing the manufacturing. The iron wire ring for positioning is convenient to manufacture, the vertically distributed connecting steel bars are accurately positioned, and the construction quality and the work efficiency can be obviously improved.

Description

Positioning device and positioning method for vertically distributed connecting steel bars of round hole plate shear wall
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a method for positioning vertically distributed connecting steel bars of a round hole plate shear wall.
Background
And searching, wherein a positioning method for vertically distributing and connecting reinforcing steel bars in the round hole plate shear wall is not found. Similar concrete structure steel bar positioning methods include:
utility model patent grant specification CN201720720090.0 discloses a reinforcing bar holding ring, and it includes: the first positioning block and the second positioning block; the upper part of the first positioning block is provided with a first fixing hole, the first positioning block is provided with a first semicircular hole, the front surface of the first positioning block is provided with a first semicircular ring bulge, the upper part of the second positioning block is provided with a second fixing hole, the second positioning block is provided with a second semicircular hole, and the front surface of the second positioning block is provided with a second semicircular ring bulge; the first locating block and the second locating block are butted to form a steel bar locating ring, the first semicircular hole and the second semicircular hole jointly form the rear half part of the steel bar locating hole, the first semicircular ring bulge and the second semicircular ring bulge jointly form an annular bulge located on the surface of the steel bar locating ring, an inner hole formed by the annular bulge forms the front half part of the steel bar locating hole, and the rear half part of the steel bar locating hole and the front half part of the steel bar locating hole jointly form the steel bar locating hole of the steel bar locating ring. The product has simple structure and is convenient to install and use. The reinforcing steel positioning ring has the function of ensuring that the thickness of the concrete protective layer is not less than a fixed value, does not play a role in bidirectional positioning, and cannot limit the maximum protective layer thickness.
Utility model patent grant specification CN201620759882.4 discloses a vertical reinforcing bar positioner of shear force wall, relates to building element technical field. The utility model discloses an including the location body, the location body is solid cuboid, and the length of the location body equals with the thickness of shear force wall, and the both ends of the location body are equipped with the round hole that vertical reinforcing bar passes through respectively. The concrete protective layer positioning device is simple in structure and convenient to operate, can guarantee that the vertical steel bars are accurately positioned and the thickness of the concrete protective layer meets the design requirements, and improves the working efficiency. This kind of shear force wall vertical reinforcement positioner can guarantee that the concrete protective layer thickness of vertical reinforcing bar satisfies the designing requirement, guarantees the accuracy of vertical reinforcing bar along the wall thickness direction location, but can't guarantee along the longitudinal positioning of wall.
The utility model discloses a patent grant specification CN201720583885.1 discloses a novel steel bar location hoop muscle, including circular reinforcing bar ring, location muscle and atress muscle, circular reinforcing bar ring has 2 at least, and each circular reinforcing bar ring diameter is the same from last to placing with one heart down, and there is 10 at least pairs of atress muscle in every circular reinforcing bar ring outside, the atress muscle is according to the spot welding around circular reinforcing bar ring outside around corresponding wait angle around circular reinforcing bar ring a week, from last to corresponding a atress muscle to every atress muscle down, the atress muscle welding is between two atress muscle that correspond each circular reinforcing bar ring outside. The utility model discloses a novel steel bar positioning stirrup can be applicable to different reinforcing bars through adjustment pattern, size to have the installation swift, the practicality is strong, the accurate characteristics in location. The steel bar positioning device is convenient to mount and circulate, and can improve the accuracy of steel bar positioning. However, the positioning stirrup is only suitable for a cast-in-place concrete structure, and is not practical for positioning the on-site binding reinforcing steel bars in the hollow hole of the prefabricated circular hole plate concrete shear wall.
The invention discloses a steel bar positioning fixture and a steel bar positioning method for prefabricated wall installation, wherein the fixture comprises a steel plate with the width suitable for the thickness of a prefabricated wall, a steel bar preformed hole is formed in the steel plate, the aperture size of the steel bar preformed hole is suitable for the diameter of a connecting steel bar exposed at the top end of the prefabricated wall, and the distribution is suitable for the arrangement of the connecting steel bars; vertical short steel sleeves are welded on the upper plate surfaces corresponding to the steel bar preformed holes at the two ends of the steel plate respectively, the heights of all the short steel sleeves are consistent, paired horizontal bolt holes are formed in the uniform height of the pipe wall, and bolts used for controlling the insertion depth of the connecting steel bars are inserted into the bolt holes. The steel bar positioning device is used for positioning the steel bars in the assembling process of two prefabricated wallboards, has the advantages of simple structure, convenience in manufacturing and operation, accurate positioning and turnover use, can be adjusted for many times along with the construction process in the steel bar positioning process, is not taken down in the middle process of the fixture, ensures that the positions of the steel bars are accurate after the positioning, and greatly improves the assembling efficiency of the prefabricated wallboards. However, the method is only used for positioning the steel bars in the assembling process of the two prefabricated wall boards, and cannot be used for positioning the vertically distributed connecting steel bars of the circular hole plate concrete shear wall.
In the local standard 'assembly type shear wall structure design rule' DB 11/1003-2013 in Beijing city, provisions are made for vertically distributed reinforcing steel bars of the prefabricated round hole plate shear wall structure design, but a positioning method of the vertically distributed reinforcing steel bars is not given, and no positioning description of the vertically distributed connecting reinforcing steel bars exists.
The positioning of the vertically distributed reinforcing steel bars and the connecting reinforcing steel bars of the fabricated concrete shear wall has great influence on the quality and the efficiency of assembly construction, and when the positioning construction error is large, the prefabricated concrete shear wall plate cannot be installed in place, so that the engineering quality and the construction efficiency are influenced, and the technical scheme of the problem needs to be solved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the positioning device and the positioning method for the vertically distributed connecting steel bars of the round hole plate shear wall are provided, so that the positioning accuracy of the vertically distributed connecting steel bars of the round hole plate shear wall is ensured, the engineering construction quality is ensured, and the assembly construction efficiency is improved.
The invention adopts the following technical scheme:
positioner of vertical distribution connection reinforcing bar of round hole board shear force wall, characterized by: the shear wall comprises an iron wire ring, wherein the iron wire ring is in a closed ring shape, and the outer contour dimension of the iron wire ring is 2-6 mm smaller than the inner diameter of a round hole of the precast concrete round hole plate shear wall plate.
The method for positioning the vertically distributed connecting steel bars of the round hole plate shear wall is characterized by comprising the following steps of: the positioning device for vertically distributing and connecting the reinforcing steel bars by applying the round hole plate shear wall comprises the following steps which are sequentially carried out,
step one, preparing vertically distributed connecting steel bars
The vertically distributed connecting steel bars are closed rectangles, and the size of the outer outline of the short side of each rectangle is 6-12 mm smaller than the size of the inner diameter of the round hole of the precast concrete round hole plate shear wall plate; arranging the long positioning steel bars at one side of the rectangular long-side joint of the vertically distributed connecting steel bars, and welding the side bars at the outer sides of the vertically distributed connecting steel bars to play a role in closing the vertically distributed connecting steel bars; arranging short positioning steel bars on the other side corresponding to the long positioning steel bars welded by the vertically distributed connecting steel bars, and welding the side bars on the outer sides of the vertically distributed connecting steel bars;
step two, winding iron wire rings on the vertically distributed connecting steel bars
According to the blanking length of a required iron wire, cutting out a section of iron wire, inserting the iron wire into the middle of a vertically distributed connecting steel bar, winding the iron wire from inside to outside on the vertically distributed connecting steel bar at the lower part of the positioning steel bar at one side from the middle position of the iron wire section, winding the two sides of the iron wire section for half circles respectively, winding the whole iron wire for one circle around the vertically distributed connecting steel bar at one side, winding the two sides of the iron wire for half circles respectively along the size of the arc inner wall of the circular hole of the prefabricated concrete circular hole plate shear wallboard to the position of the vertically distributed connecting steel bar at the other side to form a complete circular ring shape, and winding the vertically distributed connecting steel bar at the other side around the two ends of the iron wire for 1.25 circles respectively to; in the same way, winding a second iron wire ring at the lower end of the vertically distributed connecting steel bar, and winding two iron wire rings on the vertically distributed connecting steel bar;
step three, arranging vertically distributed connecting steel bars with iron wire rings
After the prefabricated concrete round hole plate shear wall plate and a template or a laminated slab bottom plate of a floor slab are installed, inserting the lower parts of long positioning steel bars and short positioning steel bars of vertically distributed connecting steel bars wound with two iron wire rings into a hollow hole of the prefabricated concrete round hole plate shear wall plate from the upper side, enabling the long positioning steel bars and the short positioning steel bars to be abutted against the top end of the outer side of the hollow hole, enabling the plane of the vertically distributed connecting steel bars to be perpendicular to the outer surface of the shear wall, enabling the two iron wire rings to be arranged in the hollow hole of the prefabricated concrete round hole plate shear wall plate, and limiting the positions of the vertically distributed connecting steel bars;
step four, pouring the cast-in-place concrete
And after finishing binding of all other reinforcing steel bars and supporting of the template, pouring cast-in-place concrete into the hollow hole of the precast concrete round hole plate shear wall plate to complete the positioning of the vertically distributed connecting reinforcing steel bars of the round hole plate shear wall.
Through the design scheme, the invention can bring the following beneficial effects: the positioning device and the positioning method for the vertically distributed connecting steel bars of the round hole plate shear wall have the advantages that the iron wire rings for positioning are convenient to manufacture, the vertically distributed connecting steel bars are accurately positioned, and the construction quality and the work efficiency can be obviously improved.
Drawings
The invention is further described with reference to the following figures and detailed description:
fig. 1 is a schematic top view of the iron wire ring of the present invention.
Fig. 2 is a front view schematically showing the iron wire ring of the present invention.
Fig. 3 is a left side view schematically showing the iron wire ring of the present invention.
Fig. 4 is a right-side view schematically showing the iron wire ring of the present invention.
Fig. 5 is a schematic top view of the vertically distributed connecting rebars of the present invention.
Fig. 6 is a schematic front view of the vertically distributed connecting reinforcement of the present invention.
Fig. 7 is a schematic front view of the vertically distributed connecting steel bars of the present invention wound with iron wire rings.
Fig. 8 is a schematic sectional view of a vertically distributed connecting reinforcement a-a wound with a wire loop according to the present invention.
Fig. 9 is a schematic cross-sectional view of a precast concrete round hole plate shear wall panel according to the present invention.
Fig. 10 is a schematic view of the installation of vertically distributed connecting steel bars wound with wire loops according to the present invention.
Fig. 11 is a schematic view of the vertically distributed connecting steel bar wound iron wire ring of the cast concrete of the present invention.
In the figure, 1-iron wire ring, 2-vertical distribution connecting steel bar, 3-precast concrete round hole plate shear wall plate, 201-long positioning steel bar and 202-short positioning steel bar.
Detailed Description
The positioning device for the vertically distributed connecting steel bars of the round hole plate shear wall comprises an iron wire ring 1 as shown in figures 1-4, wherein the iron wire ring 1 is made of iron wires and is wound with the vertically distributed connecting steel bars 2 to form a closed ring, and the outer contour dimension of the positioning device is the diameter reduced by 2-6 mm from the inner diameter of a round hole of a prefabricated concrete round hole plate shear wall plate 3.
The method for positioning the vertically distributed connecting steel bars of the round hole plate shear wall is implemented by adopting the positioning device for the vertically distributed connecting steel bars of the round hole plate shear wall, which is disclosed by the invention and shown in figures 1-11,
step one, preparing vertically distributed connecting steel bars 2
The vertically distributed connecting steel bars 2 are closed rectangles, and the size of the outer outline of the short side of each rectangle is 6-12 mm smaller than the size of the inner diameter of the round hole of the precast concrete round hole plate shear wall plate 3; arranging the long positioning steel bars 201 at one side of the rectangular long-side joint of the vertically distributed connecting steel bars 2, and welding the upper bars on the outer side of the vertically distributed connecting steel bars 2 to play a role in closing the vertically distributed connecting steel bars 2; arranging a short positioning steel bar 202 on the other side corresponding to the long positioning steel bar 201 welded on the vertically distributed connecting steel bar 2, and welding the side bars on the outer side of the vertically distributed connecting steel bar 2;
step two, winding iron wire rings 1 on the vertically distributed connecting steel bars 2
Cutting a section of iron wire according to the blanking length of the required iron wire, inserting the iron wire into the middle of the vertically distributed connecting steel bars, winding the vertically distributed connecting steel bars 2 outwards from the lower part of the positioning steel bar on one side of the iron wire section, winding half circles on the two sides of the iron wire section respectively, winding the whole iron wire around the vertically distributed connecting steel bars 2 on one side for one circle, winding the two sides of the iron wire into a complete circular ring along the inner diameter of the circular hole of the prefabricated concrete circular hole plate shear wall plate 3, touching the vertically distributed connecting steel bars 2 on the other side, winding the vertically distributed connecting steel bars 2 on the two ends of the iron wire for 1.25 circles respectively, and completing the winding of an iron wire ring 1; in the same way, winding one iron wire ring 1 at the lower end of the vertically distributed connecting steel bar 2, and winding two iron wire rings 1 on the vertically distributed connecting steel bar 2 in total;
step three, arranging vertically distributed connecting steel bars 2 with iron wire rings 1
After the prefabricated concrete round hole plate shear wall plate 3 and the template or laminated slab bottom plate of the floor slab are installed, inserting the lower parts of the long positioning steel bars 201 and the short positioning steel bars 202 of the vertically distributed connecting steel bars 2 with the iron wire rings 1 into the hollow holes of the prefabricated concrete round hole plate shear wall plate 3 from the upper side, enabling the long positioning steel bars 201 and the short positioning steel bars 202 to abut against the top ends of the outer sides of the hollow holes, enabling the planes of the vertically distributed connecting steel bars 2 to be perpendicular to the outer surface of the shear wall, placing the two iron wire rings 1 into the hollow holes of the prefabricated concrete round hole plate shear wall plate 3, and limiting the positions of the vertically distributed connecting steel bars 2;
step four, pouring the cast-in-place concrete
And after finishing binding of all other reinforcing steel bars and supporting of the templates, pouring cast-in-place concrete into the hollow holes of the precast concrete round hole plate shear wall plate 3 to complete the positioning of the vertically distributed connecting reinforcing steel bars of the round hole plate shear wall.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (1)

1. The positioning method of the round hole plate shear wall vertical distribution connecting steel bars comprises a wire ring (1), wherein the wire ring (1) is in a closed ring shape, and the size of the outer contour of the wire ring is 2-6 mm smaller than the inner diameter of a round hole of a precast concrete round hole plate shear wall plate;
the method is characterized in that: comprises the following steps which are sequentially carried out,
step one, preparing vertical distribution connecting steel bar (2)
The vertically distributed connecting steel bars (2) are closed rectangles, and the size of the outer outline of the short side of each rectangle is 6-12 mm smaller than the size of the inner diameter of the round hole of the precast concrete round hole plate shear wall plate (3); arranging a long positioning steel bar (201) at one side of a rectangular long-side joint of the vertically distributed connecting steel bar (2), and welding the side bars on the outer side of the vertically distributed connecting steel bar (2) to play a role in closing the vertically distributed connecting steel bar (2); arranging short positioning steel bars (202) on the other side corresponding to the long positioning steel bars (201) welded on the vertically distributed connecting steel bars (2), and welding the side bars on the outer side of the vertically distributed connecting steel bars (2);
secondly, winding iron wire rings (1) on the vertically distributed connecting steel bars (2)
According to the blanking length of a required iron wire, cutting a section of iron wire, inserting the iron wire into the middle of a vertically distributed connecting steel bar (2), winding the iron wire from inside to outside from the middle position of the iron wire section to the vertically distributed connecting steel bar (2) at the lower part of a positioning steel bar at one side, winding half circles at two sides of the iron wire section respectively, winding the whole iron wire into a circle around the vertically distributed connecting steel bar (2) at one side, winding the two sides of the iron wire into a position of the vertically distributed connecting steel bar (2) at the other side along the size of the arc inner wall of a round hole of a precast concrete round hole plate shear wallboard (3) respectively to form a complete ring shape, winding the vertically distributed connecting steel bar (2) at the other side at two ends of the iron wire by 1.25 circles respectively, and finishing winding of an iron wire ring (1); in the same way, a second iron wire ring (1) is wound at the lower end of the vertically distributed connecting steel bar (2), and two iron wire rings (1) are wound on the vertically distributed connecting steel bar (2);
step three, arranging the vertically distributed connecting steel bars (2) with the iron wire rings (1)
After the prefabricated concrete round hole plate shear wall plate (3) and a template or a laminated slab bottom plate of a floor slab are installed, inserting the lower parts of long positioning steel bars (201) and short positioning steel bars (202) of vertically distributed connecting steel bars (2) wound with two wire rings (1) into a hollow hole of the prefabricated concrete round hole plate shear wall plate (3) from the upper side, enabling the long positioning steel bars (201) and the short positioning steel bars (202) to abut against the top end of the outer side of the hollow hole, enabling the plane of the vertically distributed connecting steel bars (2) to be perpendicular to the outer surface of the shear wall, placing the two wire rings (1) into the hollow hole of the prefabricated concrete round hole plate shear wall plate (3), and limiting the positions of the vertically distributed connecting steel bars (2);
step four, pouring the cast-in-place concrete
After the binding of all other reinforcing steel bars and the supporting of the templates are finished, pouring cast-in-place concrete into the hollow holes of the precast concrete round hole plate shear wall plate (3) to complete the positioning of the vertically distributed connecting reinforcing steel bars of the round hole plate shear wall.
CN201810491959.8A 2018-05-22 2018-05-22 Positioning device and positioning method for vertically distributed connecting steel bars of round hole plate shear wall Active CN108729591B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB639038A (en) * 1948-07-07 1950-06-21 Broads Mfg Company Ltd Improvements in or relating to locating devices for reinforcing members in reinforced concrete structures and units
CN202359742U (en) * 2011-11-30 2012-08-01 长沙华坤建材科技有限公司 Steel bar locator with reinforced masonry structure
CN103485548A (en) * 2013-10-17 2014-01-01 孟凡林 Vertical reinforcement connecting method for fabricated hollow concrete superimposed shear wall
CN103850363A (en) * 2014-03-11 2014-06-11 朱彤 Prefabricated through hole assembly type reinforced concrete shear wall and construction method of prefabricated through hole assembly type reinforced concrete shear wall
CN104047381A (en) * 2014-07-04 2014-09-17 孟凡林 Assembly integrated type lightly reinforced concrete shear wall structure
RU2013144829A (en) * 2013-10-07 2015-04-20 Владимир Викторович Данель LOOPless WELDED JOINT OF WALL PANELS
CN105544798A (en) * 2016-01-25 2016-05-04 三新房屋制造股份有限公司 Assembled-type hollow-slab shear wall structure and construction method thereof
CN106545109A (en) * 2016-12-08 2017-03-29 湖北宇辉新型建筑材料有限公司 Overlaid plate type concrete shear wall longitudinal connection structure and method of attachment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB639038A (en) * 1948-07-07 1950-06-21 Broads Mfg Company Ltd Improvements in or relating to locating devices for reinforcing members in reinforced concrete structures and units
CN202359742U (en) * 2011-11-30 2012-08-01 长沙华坤建材科技有限公司 Steel bar locator with reinforced masonry structure
RU2013144829A (en) * 2013-10-07 2015-04-20 Владимир Викторович Данель LOOPless WELDED JOINT OF WALL PANELS
CN103485548A (en) * 2013-10-17 2014-01-01 孟凡林 Vertical reinforcement connecting method for fabricated hollow concrete superimposed shear wall
CN103850363A (en) * 2014-03-11 2014-06-11 朱彤 Prefabricated through hole assembly type reinforced concrete shear wall and construction method of prefabricated through hole assembly type reinforced concrete shear wall
CN104047381A (en) * 2014-07-04 2014-09-17 孟凡林 Assembly integrated type lightly reinforced concrete shear wall structure
CN105544798A (en) * 2016-01-25 2016-05-04 三新房屋制造股份有限公司 Assembled-type hollow-slab shear wall structure and construction method thereof
CN106545109A (en) * 2016-12-08 2017-03-29 湖北宇辉新型建筑材料有限公司 Overlaid plate type concrete shear wall longitudinal connection structure and method of attachment

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Address after: Room 101, building b3-2-1, group B3, Wanda Plaza, Changchun City, automobile economic and Technological Development Zone, Changchun City, Jilin Province, 130062

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Patentee before: JILIN JIANZHU University

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