CN113530086B - Supporting device of cylinder steel bar keel - Google Patents
Supporting device of cylinder steel bar keel Download PDFInfo
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- CN113530086B CN113530086B CN202110877437.3A CN202110877437A CN113530086B CN 113530086 B CN113530086 B CN 113530086B CN 202110877437 A CN202110877437 A CN 202110877437A CN 113530086 B CN113530086 B CN 113530086B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0627—Three-dimensional reinforcements composed of a prefabricated reinforcing mat combined with reinforcing elements protruding out of the plane of the mat
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
A supporting device for a column steel bar keel belongs to the technical field of building column construction and comprises a steel bar keel and a supporting device, wherein the steel bar keel comprises column steel bars, inner stirrups, outer stirrups, an anchoring cylinder and binding steel wires; the inner layer column steel bar square fence net and the outer layer column steel bar square fence net are formed and welded by an anchoring cylinder to form a column steel bar keel; the supporting device comprises a template, gasket strips, expansion-proof bolts, positioning angle laths, bolt and nut sets and screws; the template is lapped on the periphery of a steel bar keel of the column body, the expansion-proof bolt penetrates through the gasket strip and the template and is screwed into the anchoring cylinder to be screwed, the positioning angle lath is closely butted on the outer surfaces of the two templates which are vertical to each other, and the positioning angle lath is fixedly lapped by using a bolt-nut group and a screw to form a supporting device; the anchor cylinder has the beneficial effects that the anchor cylinder is simultaneously used as a keel and a support, the problems of slurry leakage, mold expansion and exposed ribs are solved, and the construction quality of the column body is improved.
Description
Technical Field
The invention relates to the technical field of construction of building columns, in particular to a supporting device for a steel keel of a column.
Background
The construction process of the reinforced concrete column body comprises the steps of firstly building a steel keel, then building a template, fixing the template and then pouring concrete.
The existing construction method is easy to cause the problems of mold expansion, rib exposure, slurry leakage at the external corner part and the like. The size of the component is increased due to slurry leakage and expansion, the appearance is irregular, and the appearance quality of concrete is influenced. In the concrete solidification process, if the phenomena of slurry leakage or mold expansion exist, after solidification is finished, correction treatment needs to be carried out, and some concrete can even directly destroy and rebuild, so that time, material resources and human resources are seriously wasted. Exposed steel bars can enable external substances such as oxygen, water vapor and the like to permeate into concrete, steel bars in the reinforced concrete are corroded, corroded objects of the steel bars are loosened and expanded, the concrete cracks or falls off to expose the steel bars, and the appearance and the service life of the reinforced concrete structure are seriously affected.
Patent document CN 110029863B discloses a reinforced concrete steel column, which comprises a cylinder column arranged above the reinforced concrete column, wherein the cylinder column comprises a cylinder column body and a cup bottom; and the section steel column is fixed above the cup bottom. The cup bottom and the cylinder column body are fixedly connected through a bottom plate and an anchor bolt, the cup bottom is bound with a main steel bar and a first stirrup, and the anchor bolt is pre-embedded in the reinforced concrete column, penetrates through the cup bottom and is fixed after extending out of the bottom plate; the cylindrical column is formed by binding main steel bars and second stirrups, and a stiffening plate and third stirrups are arranged at the upper end part of the cylindrical column; the side wall surface of the cylindrical column and the concrete of the upper-floor platform are poured simultaneously, and the cup bottom and the cylindrical column body are formed by pouring the concrete. The section size of the steel column of the invention better meets the stress requirement, the construction strength is ensured, the construction efficiency is improved, and the construction cost is saved; but this solution does not solve the problems of die swell and exposed ribs.
Patent document CN 112360149A discloses a column formwork slurry leakage prevention reinforcement construction method, after the bottom of a column formwork is plugged by adopting angle steel with a sealing gasket, a plurality of wood purlin are arranged around the outer side of the column formwork, and a plurality of formwork reinforcing members are installed on the outer side of the column formwork from bottom to top along the axial direction of the column formwork, so that the problem of slurry leakage of the external corner of the column formwork is effectively solved, the opening of the formwork is avoided, the formwork resource is greatly saved, green construction is realized, the formwork reinforcement process is simplified, the working efficiency is improved, and the labor and the construction period are saved. Although the scheme solves the problem of slurry leakage, the template is additionally provided with the wood purlin and the template reinforcing member, the structure is complex, and the problems of expansion and exposed ribs are not solved at the same time.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a steel bar keel and a supporting device which adopt an anchoring bolt and a positioning angle lath so as to simultaneously solve the problems of slurry leakage, mold expansion and rib exposure and improve the construction quality of a column body.
In order to solve the technical problem, the technical scheme adopted by the invention is that the supporting device of the column steel bar keel comprises the steel bar keel and the supporting device, and is characterized in that the steel bar keel comprises column steel bars, inner stirrups, outer stirrups, an anchoring cylinder and binding steel wires; the anchoring cylinder is a through-hole steel cylinder, internal threads are arranged on the inner wall of the steel cylinder, the two ends of the anchoring cylinder are the same, and for convenience of expression, one end of the anchoring cylinder is called a bottom end, and the other end of the anchoring cylinder is called a top end; a plurality of column steel bars are vertically distributed into an inner layer square fence structure and an outer layer square fence structure, and a plurality of inner hooping bars are vertically and uniformly distributed and are bound on the inner layer square fence structure by binding steel wires to form an inner layer column steel bar square fence net; the outer hooping bars are bound on the outer layer square fence structure by binding steel wires in an up-and-down uniformly distributed manner to form an outer layer column steel bar square fence net; the anchoring cylinders are horizontally welded on the inner stirrups and the outer stirrups at the same height, the bottom ends of the anchoring cylinders are welded on the inner stirrups, and the top ends of the anchoring cylinders are welded on the outer stirrups to enable the top ends to protrude out of the outer stirrups, so that the column body steel bar keel is formed.
The supporting device comprises a template, gasket strips, expansion-proof bolts, positioning angle laths, bolt and nut sets and screws; the gasket strip is a rectangular strip gasket, the expansion-proof bolt comprises a stud, a positioning column and a nut which are fixedly connected or directly generated in sequence, wherein an external thread matched with an internal thread of the anchoring cylinder is arranged on the stud, the external diameter of the positioning column is larger than that of the stud, and the length of the positioning column is equal to the sum of the thickness of the gasket strip, the thickness of the template and the distance from the top end of the anchoring cylinder to the outer surface of the column body, so that the position of the template can be determined and fixed, and the phenomenon of mold expansion during grouting is prevented; the positioning angle lath is formed by mutually and vertically fixing two strips along the long edges of the two strips, wherein one strip is drilled with a plurality of bolt rod through holes matched with the outer diameters of the screw rods in the bolt and nut group, the other strip is called a bolt strip, the other strip is drilled with a plurality of nail rod through holes matched with the outer diameters of the nail rods of the screws, and the other strip is called a screw strip; the length of a screw rod of the screw is greater than the thickness of a strip of the positioning angle lath and less than the sum of the thickness of the strip and the thickness of the template; a through hole matched with the outer diameter of the positioning column is drilled in the template horizontally corresponding to the position of the anchoring cylinder in the steel bar keel, and a through hole matched with the outer diameter of the positioning column is also drilled in the gasket strip; overlapping the templates on the periphery of the steel bar keel of the column according to a designed position, enabling the templates on the four outer surfaces of the column to be vertical to each other, enabling one end part of the template on one outer surface to be vertically connected on the side edge of the extending end of the template on one adjacent outer surface, enabling the other end part to extend out of the template on the other adjacent outer surface, enabling the end part of the template on the other adjacent outer surface to be vertically connected on the side edge of the extending end, and drilling a bolt rod through hole matched with the outer diameter of a screw rod in a bolt nut group on the side edge of the extending end of the template; attaching a gasket strip to the outer surface of the template, sequentially penetrating a stud and a positioning column of the anti-expansion bolt through the gasket strip and a through hole in the template, screwing the stud into the anchoring cylinders and screwing the stud tightly, so that the end surfaces of the positioning columns are abutted against the top end surfaces of the anchoring cylinders, and thus, the anti-expansion bolt is screwed in each anchoring cylinder; then, the positioning angle laths are abutted against the outer surfaces of the two mutually perpendicular formworks in a clinging manner, screws on bolts in the bolt and nut groups penetrate through the positioning angle laths and bolt rod through holes in the formworks and are screwed up by nuts, screws penetrate through the bolt rod through holes in the positioning angle laths and are screwed up on the formworks, and thus the positioning angle laths are fixedly connected to the outer surfaces of the four perpendicular formworks; forming the supporting device.
Furthermore, the bottom end of the anchoring cylinder is welded on the inner stirrups and the column reinforcements on the square fence net of the inner-layer column reinforcements, and the top end of the anchoring cylinder is welded on the outer stirrups and the column reinforcements on the square fence net of the outer-layer column reinforcements and enables the top end to protrude out of the outer stirrups.
The length of the outer stirrup protruded from the top end of the anchoring cylinder is smaller than the diameter of the outer stirrup.
The length of the stud is smaller than that of the anchoring cylinder and is larger than half of the length of the anchoring cylinder.
The outer diameter of the positioning column is equal to that of the anchoring cylinder.
A construction method of a supporting device of a column steel reinforcement keel comprises the following steps:
the square fence mesh for binding the inner-layer column steel bars is characterized in that a plurality of column steel bars are vertically and uniformly distributed to form a square fence structure, and a plurality of inner tie bars are vertically and uniformly distributed and are bound on the square fence structure through binding steel wires to form the square fence mesh for binding the inner-layer column steel bars.
The wall is square fence net of outer post reinforcing bar of ligature, gets a plurality of post reinforcing bars and is vertical form evenly distributed and constitutes peripheral square fence structure in the periphery of inner post reinforcing bar square fence net, gets a plurality of outer stirrup and is upper and lower equal distribution form by ligature steel wire ligature on peripheral square fence structure, constitutes outer post reinforcing bar square fence net.
Welding the steel bar keels, horizontally welding a plurality of anchoring cylinders on the inner stirrups and the outer stirrups at the same height, welding the bottom ends of the anchoring cylinders on the inner stirrups on the square fence net of the inner-layer column steel bars, welding the top ends of the anchoring cylinders on the outer stirrups on the square fence net of the outer-layer column steel bars, and enabling the top ends to protrude out of the outer stirrups to manufacture the column steel bar keels.
Fourthly, overlapping the templates, namely taking a plurality of templates, overlapping the templates on the peripheries of the four outer surfaces of the column steel bar keel at corresponding positions according to design requirements, enabling the templates on the four outer surfaces of the column to be mutually vertical, enabling one end part of the template on one outer surface to be vertically connected to the side edge of the extending end of the template on one adjacent outer surface, enabling the other end part to extend out of the template on the other adjacent outer surface, and enabling the end part of the template on the other adjacent outer surface to be vertically connected to the side edge of the extending end; checking the distance between the inner surface of each template and the column steel keel to make the distance equal to a set value; for convenience of description, the end of the form that is attached vertically with the side of the form on the surface of the other form is referred to as the vertical end of the form, and the end of the form that receives the vertical form with the surface of the form is referred to as the vertical end of the form.
Fifthly, installing an anti-expansion bolt, drilling a through hole matched with the outer diameter of the positioning column on the template horizontally corresponding to the position of the anchoring cylinder in the column steel keel, and drilling a through hole matched with the outer diameter of the positioning column on the gasket strip; then taking a plurality of anti-expansion bolts, tightly attaching gasket strips to the outer surface of the template, sequentially penetrating the studs and the positioning columns of the anti-expansion bolts through the gasket strips and the through holes in the template, screwing the studs into the anchoring cylinders, and screwing the studs tightly, so that the end surfaces of the positioning columns are abutted against the top end surfaces of the anchoring cylinders, and at least two anti-expansion bolts are installed on each gasket strip, so that the anti-expansion bolts are screwed in each anchoring cylinder; and checking the distance between the inner surface of each template and the outer stirrup to ensure that the distance is equal to a set value.
Sixthly, mounting a positioning angle lath, and drilling a bolt rod through hole matched with the outer diameter of a screw rod in a bolt nut group on a template extending out of the vertical end of the template; then, the positioning angle laths are tightly attached and abutted to the outer surfaces of the two mutually vertical templates, screws on bolts in the bolt and nut groups penetrate through bolt strips on the positioning angle laths and bolt rod through holes on the vertical ends of the templates and are screwed by nuts, screws penetrate through bolt rod through holes on the bolt strips on the positioning angle laths and are screwed and screwed on the vertical ends of the templates, and thus the positioning angle laths are fixedly attached to the outer surfaces of the four vertical templates; making a supporting device; and checking the distance between the inner surface of each template and the outer stirrup again to enable the distance to be equal to a set value, and checking the distance between the inner surfaces of the two corresponding parallel templates to enable the distance to be equal to the set thickness of the cylinder.
And then pouring concrete mortar, vibrating, and removing the mold after maintenance is finished to obtain the reinforced concrete column.
The holes left by the expansion-proof bolts after the form removal can be filled with concrete mortar or other sealing materials.
Compared with the prior art, the invention has the following beneficial effects:
the expansion-preventing bolt is combined with the anchoring cylinder without adopting a pair of pull rods, the anchoring cylinder does not penetrate through the cylinder, the expansion-preventing bolt can position and fix the distance between the template and the outer hooping, and the expansion die can be effectively avoided.
The anchor cylinder replaces the traditional lacing wire, the anchor cylinder is integrated into the steel bar keel and is combined into a whole, a part of the steel bar keel is formed, the anchor cylinder is combined with the anti-expansion bolt to support the formwork, a part of the formwork supporting device is formed, and materials are effectively saved.
And thirdly, the top end of the anchoring cylinder slightly protrudes out of the outer stirrup, and the positioning columns are arranged on the expansion-preventing bolts, so that the template keeps a set distance from the top end face of the anchoring cylinder and the outer stirrup, and the exposure of the reinforcement can be effectively avoided.
Fourthly, positioning angle laths are adopted, and the outer ends of the templates which are vertically and tightly abutted with each other are fixed, so that slurry leakage can be effectively avoided; the construction quality is improved as a whole.
Drawings
Fig. 1 is a schematic overall top view of the support device of the column steel keel of the invention.
Fig. 2 is a schematic top view of the column steel keel according to the invention.
Fig. 3 is an enlarged schematic diagram of a block a in fig. 1.
Fig. 4 is a schematic structural view of the anchoring cylinder and the expansion-preventing bolt of the present invention.
FIG. 5 is a schematic view of the construction of the angle bar of the present invention.
In the figure: 1. the concrete column comprises a steel bar keel, 2 parts of a supporting device, 3 parts of column steel bars, 4 parts of inner stirrups, 5 parts of outer stirrups, 6 parts of an anchoring cylinder, 7 parts of a bottom end, 8 parts of a top end, 9 parts of an inner-layer column steel bar square fence net, 10 parts of an outer-layer column steel bar square fence net, 11 parts of a template, 12 parts of a gasket strip, 13 parts of an anti-expansion bolt, 14 parts of a positioning angle lath, 15 parts of a bolt strip, 16 parts of a bolt strip, 17 parts of a bolt and nut group, 18 parts of a bolt, 19 parts of a stud, 20 parts of a positioning column, 21 parts of a nut, 22 parts of a template vertical end and 23 parts of a template vertical end.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to illustrate the invention but not to limit it further, and should not be construed as limiting the scope of the invention.
Example 1.
As shown in the figure, the supporting device for the column steel bar keel is installed, and comprises a steel bar keel 1 and a supporting device 2, wherein the steel bar keel 1 comprises column steel bars 3, inner stirrups 4, outer stirrups 5, anchoring cylinders 6 and binding steel wires; the anchoring cylinder 6 is a through-hole steel cylinder, internal threads are arranged on the inner wall of the steel cylinder, the two ends of the anchoring cylinder 6 are the same, and for convenience of expression, one end of the anchoring cylinder 6 is called a bottom end 7, and the other end of the anchoring cylinder 6 is called a top end 8; a plurality of column steel bars 3 are vertically distributed into an inner square fence structure and an outer square fence structure, and a plurality of inner stirrups 4 are bound on the inner square fence structure by binding steel wires in an up-down uniform distribution manner to form an inner column steel bar square fence net 9; the outer stirrups 5 are uniformly distributed up and down and are bound on the outer square fence structure by binding steel wires to form an outer column steel bar square fence net 10; a plurality of anchor section of thick bamboo 6 are the welding of level form on interior stirrup 4 and the outer stirrup 5 of co-altitude, wherein anchor section of thick bamboo bottom 7 welds on interior stirrup 4, and 8 welding on outer stirrup 5 on anchor section of thick bamboo top and make top 8 emerge outside outer stirrup 5, constitute cylinder steel reinforcement fossil fragments 1.
The supporting device 2 comprises a template 11, a gasket strip 12, an expansion-proof bolt 13, a positioning angle lath 14, a bolt and nut group 17 and a screw 18; the gasket strip 12 is a strip gasket block, the expansion-proof bolt 13 comprises a stud 19, a positioning column 20 and a nut 21 which are directly generated in sequence, wherein an external thread matched with an internal thread in the anchoring cylinder 6 is arranged on the stud 19 in a tapping manner, the outer diameter of the positioning column 20 is larger than that of the stud 19, and the length of the positioning column 20 is equal to the sum of the thickness of the gasket strip 12, the thickness of the template 11 and the distance from the top end 8 of the anchoring cylinder to the outer surface of the cylinder; the positioning angle lath 14 is formed by bending a long-strip-shaped plate into a right-angle shape along the central line to form two strips, and the two strips are mutually vertically fixed along the edges of the long edges to form the positioning angle lath 14, wherein a plurality of bolt rod through holes matched with the outer diameter of a screw rod in a bolt and nut group 17 are drilled on one strip, the other strip is called a bolt strip 15, a plurality of nail rod through holes matched with the outer diameter of a nail rod of a screw 18 are drilled on the other strip, and the other strip is called a screw strip 16; the length of the screw rod of the screw 18 is greater than the thickness of the screw strip 16 and less than the sum of the thickness of the screw strip 16 and the thickness of the template 11; a through hole matched with the outer diameter of the positioning column 20 is drilled on the template 11 horizontally corresponding to the position of the anchoring cylinder 6 in the steel keel 1, and a through hole matched with the outer diameter of the positioning column 20 is also drilled on the gasket strip 12; overlapping the templates 11 at the periphery of the column steel bar keel 1 according to the design position, enabling the templates 11 on the four outer surfaces of the column steel bar keel 1 to be mutually vertical, enabling the side edge of the template on one outer surface to be vertically connected to the template on the adjacent outer surface, and drilling a bolt rod through hole matched with the outer diameter of a screw rod in the bolt and nut group 17 at the position of the vertical template extending out of the template on the outside; attaching a gasket strip 12 on the outer surface of the template 11, sequentially penetrating a stud 19 and a positioning column 20 of an anti-expansion bolt 13 through the gasket strip 12 and a through hole in the template 11, screwing the stud 19 into the anchoring cylinder 6, screwing the stud 19 tightly, and enabling the end surface of the positioning column 20 to abut against the top end 8 surface of the anchoring cylinder 6, so that the anti-expansion bolt 13 is screwed in each anchoring cylinder 6; then, the positioning angle laths 14 are tightly abutted on the outer surfaces of the two mutually vertical formworks 11, screws on bolts in the bolt and nut sets 17 penetrate through the positioning angle laths 14 and bolt rod through holes in the formworks 11 and are screwed by nuts, and screws 18 penetrate through the bolt rod through holes in the positioning angle laths 14 and are screwed on the formworks 11, so that the positioning angle laths 14 are fixedly connected on the outer surfaces of the four vertical formworks 11; constituting a supporting device 2.
Example 2.
On the basis of the embodiment 1, the bottom end 7 of the anchoring cylinder is welded on the inner stirrup 9 and the column steel bar 3 on the inner-layer column steel bar square fence net 9, the top end 8 of the anchoring cylinder is welded on the outer stirrup 5 and the column steel bar 3 on the outer-layer column steel bar square fence net 10, and the top end 8 protrudes out of the outer stirrup 5.
The length of the top end 8 of the anchoring cylinder, which protrudes out of the outer stirrup 5, is further smaller than the material diameter of the outer stirrup 5.
The length of the stud 19 is made smaller than the length of the anchoring cylinder 6 and greater than half the length of the anchoring cylinder 6.
The outer diameter of the positioning post 20 is made equal to the outer diameter of the anchoring cylinder 6.
Example 3.
A construction method of a supporting device of a column steel keel is characterized in that the supporting device 2 of the steel keel 1 is built at a design position, and the construction method comprises the following steps:
the method comprises the steps of binding the square fence net 9 of the inner-layer column steel bars, taking a plurality of column steel bars 3 to be vertically and uniformly distributed to form a square fence structure, taking a plurality of inner stirrups 4 to be vertically and uniformly distributed, and binding the inner-layer column steel bars on the square fence structure by binding steel wires to form the square fence net 9 of the inner-layer column steel bars.
The square fence net 10 of outer post reinforcing bar of basement ligature, get a plurality of post reinforcing bars 3 and be vertical form evenly distributed and constitute peripheral square fence structure in the periphery of inner post reinforcing bar square fence net 9, get a plurality of outer stirrups 5 and be upper and lower equal distribution form by the ligature steel wire ligature in peripheral square fence structure, constitute outer post reinforcing bar square fence net 10.
Welding the steel bar keels, horizontally welding a plurality of anchoring cylinders 6 on the inner stirrups 4 and the outer stirrups 5 at the same height, welding the bottom ends 7 of the anchoring cylinders on the inner stirrups 4 on the inner-layer column steel bar square fence net 9, welding the top ends 8 of the anchoring cylinders on the outer stirrups 5 on the outer-layer column steel bar square fence net 10, and enabling the top ends 8 to protrude out of the outer stirrups 5 to form the column steel bar keels 1.
Fourthly, overlapping the templates 11, namely taking a plurality of templates 11, overlapping the templates 11 at the peripheries of the four outer surfaces of the column steel keel 1 at corresponding positions according to design requirements, enabling the templates 11 on the four outer surfaces of the column steel keel 1 to be mutually vertical, and enabling the side edge of one template on one outer surface to be vertically connected to the template on the adjacent outer surface; then checking the distance between the inner surface of each template and the column steel keel 1 to ensure that the distance is equal to a set value; for ease of description, forms that are attached vertically with the sides of the forms on the face of another form will be referred to as form vertical ends 22, and forms that receive vertical forms with the faces of the forms will be referred to as forms vertical ends 23.
Fifthly, installing expansion-proof bolts 13, drilling through holes matched with the outer diameter of the positioning columns 20 in the templates 11 horizontally corresponding to the positions of the anchoring cylinders 6 in the column steel keel 1, and drilling through holes matched with the outer diameter of the positioning columns 20 in the spacer strips 12; then taking a plurality of anti-expansion bolts 13, tightly attaching gasket strips 12 to the outer side surface of a template 11, sequentially penetrating studs 19 and positioning columns 20 of the anti-expansion bolts 13 through holes in the gasket strips 12 and the template 11, screwing the studs 19 into the anchoring cylinders 6, screwing the studs 19, and enabling the end surfaces of the positioning columns 20 to abut against the top 8 surfaces of the anchoring cylinders 6, installing at least two anti-expansion bolts 13 on each gasket strip 12, and screwing the anti-expansion bolts 13 into each anchoring cylinder 6; the distance between the inner surface of each formwork 11 and the outer stirrup 5 is then checked so that it is equal to the set value.
Sixthly, mounting a positioning angle lath 14, and drilling a bolt rod through hole matched with the outer diameter of a screw rod in the bolt nut group 17 on the template part extending out of the vertical end 23 of the template; then, the positioning angle lath 14 is tightly attached and abutted on the outer surfaces of the two mutually perpendicular formworks 11, a screw rod on a bolt in a bolt-nut group 17 passes through a bolt strip 15 and a bolt rod through hole on a vertical end 23 of the formwork and is screwed by a nut, a screw 18 passes through a nail rod through hole on a bolt strip 16 and is screwed and screwed on a vertical end 22 of the formwork, and thus the positioning angle lath 14 is fixedly attached and connected at the vertical corners on the outer surfaces of the four mutually perpendicular formworks; making a supporting device 2; then the distance between the inner surface of each template 11 and the outer stirrup 5 is checked again to be equal to the set value, and then the distance between the inner surfaces of the two corresponding parallel templates 11 is checked to be equal to the set thickness of the cylinder.
And then pouring concrete mortar, vibrating, and removing the mold after maintenance is finished to obtain the reinforced concrete column.
After the form is removed, the holes left by the expansion-proof bolts 13 can be filled with concrete mortar or other sealing materials; therefore, the anchoring cylinder 6 does not penetrate through the column body and is completely sealed in the column body after the hole is filled, so that the anchoring cylinder cannot rust in later use, and potential quality hazards cannot be left.
Claims (7)
1. A supporting device of a column steel bar keel comprises the steel bar keel and a supporting device, and is characterized in that the steel bar keel comprises column steel bars, inner stirrups, outer stirrups, an anchoring cylinder and binding steel wires; the anchoring cylinder is a through-hole steel cylinder, internal threads are arranged on the inner wall of the steel cylinder, two ends of the anchoring cylinder are the same, one end of the anchoring cylinder is called a bottom end, and the other end of the anchoring cylinder is called a top end; a plurality of column reinforcing steel bars are vertically distributed into an inner-layer square fence structure and an outer-layer square fence structure, and a plurality of inner hooping steel bars are bound on the inner-layer square fence structure by binding steel wires in an up-and-down uniformly distributed manner to form an inner-layer column reinforcing steel bar square fence net; the outer hooping bars are bound on the outer layer square fence structure by binding steel wires in an up-and-down uniformly distributed manner to form an outer layer column steel bar square fence net; a plurality of anchoring cylinders are horizontally welded on the inner stirrups and the outer stirrups at the same height, wherein the bottom ends of the anchoring cylinders are welded on the inner stirrups, and the top ends of the anchoring cylinders are welded on the outer stirrups and protrude out of the outer stirrups to form a cylinder steel bar keel;
the supporting device comprises a template, gasket strips, expansion-proof bolts, positioning angle laths, bolt and nut sets and screws; the gasket strip is a rectangular strip gasket, the expansion-proof bolt comprises a stud, a positioning column and a nut which are fixedly connected or directly generated in sequence, wherein an external thread matched with an internal thread of the anchoring cylinder is arranged on the stud, the external diameter of the positioning column is larger than that of the stud, and the length of the positioning column is equal to the sum of the thickness of the gasket strip, the thickness of the template and the distance from the top end of the anchoring cylinder to the outer surface of the cylinder; the positioning angle lath is formed by two strips which are perpendicular to each other along the long edge, wherein one strip is drilled with a plurality of bolt rod through holes matched with the outer diameters of the screw rods in the bolt and nut group, and the other strip is drilled with a plurality of nail rod through holes matched with the outer diameters of the nail rods of the screws; the length of a screw rod of the screw is greater than the thickness of a strip of the positioning angle lath and less than the sum of the thickness of the strip and the thickness of the template; a through hole matched with the outer diameter of the positioning column is drilled in the template horizontally corresponding to the position of the anchoring cylinder in the steel bar keel, and a through hole matched with the outer diameter of the positioning column is also drilled in the gasket strip; overlapping the templates on the periphery of the steel bar keel of the column according to a designed position, enabling the templates on the four outer surfaces of the column to be vertical to each other, enabling one end part of the template on one outer surface to be vertically connected on the side edge of the extending end of the template on one adjacent outer surface, enabling the other end part to extend out of the template on the other adjacent outer surface, enabling the end part of the template on the other adjacent outer surface to be vertically connected on the side edge of the extending end, and drilling a bolt rod through hole matched with the outer diameter of a screw rod in a bolt nut group on the side edge of the extending end of the template; attaching gasket strips on the outer surface of the template, sequentially penetrating a stud and a positioning column of the anti-expansion bolt through the gasket strips and through holes in the template, screwing the stud into the anchoring cylinders and screwing the stud tightly, and enabling the end surfaces of the positioning columns to abut against the top end surfaces of the anchoring cylinders, so that the anti-expansion bolt is screwed in each anchoring cylinder; then, the positioning angle laths are tightly attached and abutted to the outer surfaces of the two mutually perpendicular formworks, screws on bolts in the bolt and nut sets penetrate through the positioning angle laths and bolt rod through holes in the formworks and are screwed up by nuts, screws penetrate through nail rod through holes in the positioning angle laths and are screwed into and screwed up on the formworks, and thus the positioning angle laths are fixedly attached to the outer surfaces of the four perpendicular formworks; forming the supporting device.
2. The column body steel reinforcement keel supporting device according to claim 1, wherein the bottom end of the anchoring cylinder is welded on the inner stirrups and the column steel reinforcement on the inner-layer column steel reinforcement square fence net, and the top end of the anchoring cylinder is welded on the outer stirrups and the column steel reinforcement on the outer-layer column steel reinforcement square fence net and enables the top end to protrude out of the outer stirrups.
3. The support device for column steel keels according to claim 2, wherein the length of the outer stirrups protruded from the top end of the anchoring cylinder is smaller than the diameter of the outer stirrups.
4. The support device for column rebar keels of claim 3, wherein the length of the stud is less than the length of the anchoring cylinder and greater than half of the length of the anchoring cylinder.
5. The support device of column steel keel according to claim 4, wherein the outside diameter of the positioning column is equal to the outside diameter of the anchoring cylinder.
6. The support device for the column steel reinforcement keels according to any one of claims 1 to 5, wherein the construction method comprises the following steps:
the method comprises the steps of binding an inner-layer column steel bar square fence net, uniformly distributing a plurality of column steel bars in a vertical shape to form a square fence structure, binding a plurality of inner hooping bars in an up-down uniformly distributed shape on the square fence structure by binding steel wires to form the inner-layer column steel bar square fence net;
binding the square fence net of the outer-layer column steel bars, wherein a plurality of column steel bars are vertically and uniformly distributed on the periphery of the square fence net of the inner-layer column steel bars to form a peripheral square fence structure, and a plurality of outer hoop steel bars are vertically and uniformly distributed and bound on the peripheral square fence structure through binding steel wires to form the square fence net of the outer-layer column steel bars;
welding a steel bar keel, namely horizontally welding a plurality of anchoring cylinders on inner stirrups and outer stirrups with the same height, wherein the bottom ends of the anchoring cylinders are welded on the inner stirrups on the square fence net of the steel bars of the inner-layer column, the top ends of the anchoring cylinders are welded on the outer stirrups on the square fence net of the steel bars of the outer-layer column, and the outer stirrups protrude from the top ends of the anchoring cylinders to form the column steel bar keel;
fourthly, overlapping the formworks, namely taking a plurality of formworks, overlapping the formworks on the peripheries of four outer surfaces of the steel reinforced keel of the column at corresponding positions according to design requirements, enabling the formworks on the four outer surfaces of the column to be mutually vertical, vertically attaching one end part of the formwork on one outer surface to the side edge of the extending end of the formwork on one adjacent outer surface, extending the other end part of the formwork on the other adjacent outer surface to the outer side of the formwork on the other adjacent outer surface, and vertically attaching the end part of the formwork on the other adjacent outer surface to the side edge of the extending end; checking the distance between the inner surface of each template and the column steel keel to enable the distance to be equal to a set value; the end part of the template, which is vertically connected with the side edge of the template on the surface of the other template, is called a template vertical end, and the end of the template, which receives the vertical template on the surface of the template, is called a template vertical end;
fifthly, installing an anti-expansion bolt, drilling a through hole matched with the outer diameter of the positioning column on the template horizontally corresponding to the position of the anchoring cylinder in the column steel keel, and drilling a through hole matched with the outer diameter of the positioning column on the gasket strip; then taking a plurality of anti-expansion bolts, tightly attaching gasket strips to the outer surface of the template, sequentially penetrating the studs and the positioning columns of the anti-expansion bolts through the gasket strips and the through holes in the template, screwing the studs into the anchoring cylinders, and screwing the studs tightly, so that the end surfaces of the positioning columns are abutted against the top end surfaces of the anchoring cylinders, and at least two anti-expansion bolts are installed on each gasket strip, so that the anti-expansion bolts are screwed in each anchoring cylinder; checking the distance between the inner surface of each template and the outer stirrup to enable the distance to be equal to a set value;
sixthly, mounting a positioning angle lath, and drilling a bolt rod through hole matched with the outer diameter of a screw rod in a bolt nut group on a template extending out of the vertical end of the template; then, the positioning angle laths are tightly attached and abutted to the outer surfaces of the two mutually vertical templates, screws on bolts in the bolt and nut groups penetrate through bolt strips on the positioning angle laths and bolt rod through holes on the vertical ends of the templates and are screwed by nuts, screws penetrate through bolt rod through holes on the bolt strips on the positioning angle laths and are screwed and screwed on the vertical ends of the templates, and thus the positioning angle laths are fixedly attached to the outer surfaces of the four vertical templates; making a supporting device; and checking the distance between the inner surface of each template and the outer stirrup again to enable the distance to be equal to a set value, and checking the distance between the inner surfaces of the two corresponding parallel templates to enable the distance to be equal to the set thickness of the cylinder.
7. The support device for column steel reinforcement keels according to claim 6, wherein the holes left by the expansion-proof bolts after the form removal can be filled with concrete mortar or other sealing materials.
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| CN114856197A (en) * | 2022-04-24 | 2022-08-05 | 中建三局集团有限公司 | Inflatable recyclable high-low grade concrete pouring block net airbag and installation method thereof |
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