CN111456256A - Reinforced concrete prefabricated column type steel connecting joint and connecting method - Google Patents

Reinforced concrete prefabricated column type steel connecting joint and connecting method Download PDF

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Publication number
CN111456256A
CN111456256A CN202010398660.5A CN202010398660A CN111456256A CN 111456256 A CN111456256 A CN 111456256A CN 202010398660 A CN202010398660 A CN 202010398660A CN 111456256 A CN111456256 A CN 111456256A
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CN
China
Prior art keywords
reinforced concrete
steel
prefabricated column
concrete prefabricated
column
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010398660.5A
Other languages
Chinese (zh)
Inventor
刘文清
李国涛
颜鹏
闫红缨
祝玉君
马川峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heilongjiang Yuhui New Building Material Co Ltd
Original Assignee
Heilongjiang Yuhui New Building Material Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heilongjiang Yuhui New Building Material Co Ltd filed Critical Heilongjiang Yuhui New Building Material Co Ltd
Priority to CN202010398660.5A priority Critical patent/CN111456256A/en
Publication of CN111456256A publication Critical patent/CN111456256A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/58Connections for building structures in general of bar-shaped building elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245Curing concrete articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/30Columns; Pillars; Struts
    • E04C3/36Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
    • 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

Abstract

A reinforced concrete prefabricated column type steel connecting node and a connecting method. Most of longitudinal steel bars of the reinforced concrete prefabricated column at the present stage are connected through sleeves, and all the longitudinal steel bars need to be connected, the number of the sleeves is large, the cost is high, the steel bars are difficult to align holes during installation, and the installation difficulty is large. The invention comprises the following components: including a plurality of reinforced concrete prefabricated post (1), reinforced concrete prefabricated post includes steel reinforcement cage (9), and both ends are fixed with ring flange (6) about the steel reinforcement cage, and four shaped steel (2) have all been welded to the upper surface of upper end ring flange and the lower surface of lower extreme ring flange, set up rectangular shape screw hole (8) on the shaped steel, and the last pouring concrete of steel reinforcement cage, the concrete upper end extends to ring flange department, and the lower extreme extends to the shaped steel bottom and the shaped steel department of lower part reserves spread groove (7). The invention is used for the reinforced concrete prefabricated column type steel connecting node and the connecting method.

Description

Reinforced concrete prefabricated column type steel connecting joint and connecting method
The technical field is as follows:
the invention relates to a reinforced concrete prefabricated column type steel connecting node and a connecting method.
Background art:
compared with the traditional cast-in-place structure, the prefabricated building has obvious technical advantages of saving labor, templates and machinery, improving the quality of survival, reducing emission and pollution, saving construction period and cost, but the economic benefit and the social benefit generated by different construction modes of the prefabricated building are different. The longitudinal steel bars of the edge components of the reinforced concrete shear wall structure at the present stage are mostly connected through the sleeves, and all the longitudinal steel bars need to be connected, the sleeve cost, the manufacturing and installation labor cost of the prefabricated components, the grouting material cost and the grouting labor cost are high, the grouting process has high requirements on environment, the construction difficulty is high, the connection quality is not easy to guarantee, the grouting fullness degree detection difficulty is high, potential safety hazards are caused to the engineering quality, the assembled frame structure has obvious technical advantages compared with the traditional cast-in-place structure, the types of columns are few, the production is convenient, labor is saved, templates are saved, the survival quality is improved, the construction pollution is reduced, the construction period is shortened, the cost is saved, and the produced economic benefit and the social benefit are different for different assembled building construction modes. Most of longitudinal steel bars of the reinforced concrete prefabricated column at the present stage are connected through sleeves, the sleeves are required to be connected every time, the number of the sleeves is large, the cost is high, the steel bars are difficult to align holes during installation, the installation difficulty is large, the manufacturing and installation labor cost, the grouting material cost and the grouting labor cost of prefabricated components are higher, grouting depends on the responsibility of grouting workers and is high in supervision difficulty, grouting quality is difficult to observe visually, grouting fullness detection difficulty is high, and potential safety hazards are caused to engineering quality.
The invention content is as follows:
the invention aims to solve the problems that most longitudinal steel bars of a reinforced concrete prefabricated column are connected through sleeves at the present stage, each longitudinal steel bar needs to be connected, the number of the sleeves is large, the cost is high, the holes of the steel bars are difficult to align during installation, and the installation difficulty is high.
The above purpose is realized by the following technical scheme:
a reinforced concrete prefabricated column type steel connecting node comprises a plurality of reinforced concrete prefabricated columns, each reinforced concrete prefabricated column comprises a reinforcement cage, the upper end and the lower end of the reinforcement cage are fixed with flanges, four section steels are welded on the upper surface of the flange at the upper end and the lower surface of the flange at the lower end, and elongated threaded holes are formed in the section steels;
concrete is poured on the reinforcement cage, the upper end of the concrete extends to the flange plate, the lower end of the concrete extends to the bottom of the section steel, and a connecting groove is reserved at the section steel at the lower part of the section steel;
the section steel on the flange plate at the upper end of the reinforced concrete prefabricated column at the lower side is inserted into the section steel on the flange plate at the lower end of the reinforced concrete prefabricated column at the upper side and fixed through strip-shaped threaded holes of the section steel and the flange plate by high-strength bolts.
The reinforced concrete prefabricated column type steel connecting node is characterized in that the steel reinforcement cage comprises a steel reinforcement ring formed by enclosing longitudinal steel reinforcements, and a plurality of annular stirrups and internal tie bars are sleeved outside the steel reinforcement ring from top to bottom.
The reinforced concrete prefabricated column type steel connecting joint is characterized in that vent holes are formed in the bottom of the reinforced concrete prefabricated column, the starting point of each vent hole is near the center of the bottom plane of the column, and the end point of each vent hole is 300-500 th of one side face of the bottom of the column.
The reinforced concrete prefabricated column type steel connecting node is characterized in that the reinforced ring is a square ring or a circular ring, and the flange is square or circular and matched with the reinforced ring in shape.
The reinforced concrete prefabricated column type steel connecting node is characterized in that the section steel is in a square steel shape, a channel steel shape, an angle steel shape or a flat steel shape.
The reinforced concrete prefabricated column-shaped steel connecting node is characterized in that the flange plate is connected with the longitudinal steel bars in a steel bar threading or welding mode.
A method for connecting reinforced concrete prefabricated column section steel,
the method comprises the following steps:
(1) producing the reinforced concrete prefabricated column;
firstly, erecting a reinforced concrete prefabricated column template, connecting the upper part of a longitudinal steel bar of the reinforced concrete prefabricated column with an upper flange, connecting the lower part of the longitudinal steel bar with a lower flange, connecting profile steel on the upper flange and the lower flange, hoisting and fixing a steel reinforcement cage with the profile steel flange in the template, arranging a concrete protective layer cushion block and fixing the concrete protective layer cushion block, arranging a prefabricated column supporting embedded part, a hoisting embedded part or a lifting hook in the reinforced concrete prefabricated column template, pouring concrete in the concrete template, covering the reinforced concrete prefabricated column template after pouring the concrete, and curing the concrete by using steam to finish the manufacturing of the reinforced concrete prefabricated column;
(2) mounting the reinforced concrete prefabricated column;
after the production of the reinforced concrete prefabricated column is finished, the concrete prefabricated column is hoisted and transported to a construction site through a hoisting embedded part or a lifting hook, a prefabricated column contour line and a control line are discharged on an operation surface, a cushion block is arranged at the column bottom and the elevation is measured, the reinforced concrete prefabricated column is hoisted, lower-layer column top section steel is inserted into prefabricated column bottom section steel, the alignment of bolt holes is adjusted, the prefabricated column is temporarily fixed through an inclined strut, the plane position and the verticality of the prefabricated column are adjusted, the reinforced concrete prefabricated column is finally fixed, a foundation layer at the bottom of the prefabricated column is plugged and a grouting hole is reserved, a high-strength screw rod is inserted into the aligned bolt hole and a nut is screwed, the mode of gradually screwing one by one and the final fixation is adopted, grouting material is injected through the grouting hole, and gas in a cavity is discharged through an exhaust hole.
Has the advantages that:
1. the invention solves the defect of large field wet operation amount of the cast-in-situ column, improves the construction field environment and reduces the pollution and construction disturbance phenomena.
The invention solves the problems of large template consumption, more temporary supports, large field labor consumption and the like caused by in-situ cast column on-site layer-by-layer formwork support, reinforcement binding and concrete pouring, avoids the problem of disordered construction sites, shortens the time of key lines, shortens the construction period and reduces the financial cost.
The invention solves the problems that most longitudinal steel bars of the reinforced concrete prefabricated column are connected through the sleeve at the present stage, each longitudinal steel bar needs to be connected, the number of the sleeves is large, the cost is high, the hole alignment of the steel bars is difficult during installation, the installation difficulty is large, the manufacturing and installation labor cost, the grouting material cost and the grouting labor cost of the prefabricated part are high, and the like, and avoids the phenomena that grouting depends on the responsibility of grouting workers, the supervision difficulty is large, the grouting quality is difficult to observe visually, the grouting fullness detection difficulty is large, and the potential safety hazard is caused to the engineering quality.
The reinforced concrete precast column is produced industrially, the production environment is stable, the inspection is strictly carried out according to the standard, the product strength is high, the quality is ensured, and the phenomenon of common quality problems caused by the traditional cast-in-place construction process is avoided.
The reinforced concrete prefabricated column is connected by utilizing the section steel bolts, and the column body can be manufactured into a standard component, so that the prefabricated column is produced in advance and has strong universality.
The invention has the advantages of reusable components, convenient installation and convenient assembly and disassembly.
Description of the drawings:
FIG. 1 is a schematic view of a reinforced concrete prefabricated square column according to the present invention;
FIG. 2 is a schematic view of a reinforced concrete prefabricated cylinder according to the present invention;
FIG. 3 is a schematic view of a reinforced concrete prefabricated square column steel reinforcement cage connection section steel of the present invention;
FIG. 4 is a schematic view of a connection section steel of a reinforced concrete prefabricated cylindrical reinforcement cage according to the present invention;
FIG. 5 is a first schematic view of the flange connection profile steel of the present invention;
FIG. 6 is a schematic view of a flange connection section steel of the present invention;
FIG. 7 is a third schematic view of the flange connection section steel of the present invention;
FIG. 8 is a fourth schematic view of the flange connection section steel of the present invention;
FIG. 9 is a schematic view of the connection of reinforced concrete precast square column high-strength bolts of the present invention;
FIG. 10 is a schematic view of the connection of a high-strength bolt for a reinforced concrete prefabricated cylinder according to the present invention;
FIG. 11 is a schematic view showing a connection form of reinforced concrete precast column channel steel according to the present invention;
FIG. 12 is a schematic view of the connection form of the reinforced concrete prefabricated column and the square steel according to the present invention;
FIG. 13 is a schematic view of a connecting bedding course of upper and lower columns of the reinforced concrete precast column of the present invention;
FIG. 14 is a schematic view of the connection grouting holes and the exhaust holes of the upper and lower columns of the reinforced concrete precast column according to the present invention.
In the figure: 1. prefabricating a column by reinforced concrete; 2. section steel; 3. a high strength bolt; 4. longitudinal reinforcing steel bars; 5. hooping; 6. a flange plate; 7. connecting grooves; 8. a threaded hole of elongated shape; 9. and (4) a reinforcement cage. 10. And (4) grouting holes. 11. And (4) exhausting holes. 12. And (7) setting a pulp layer.
The specific implementation mode is as follows:
example 1:
a reinforced concrete prefabricated column type steel connecting node comprises a plurality of reinforced concrete prefabricated columns 1, each reinforced concrete prefabricated column comprises a reinforcement cage 9, the upper end and the lower end of each reinforcement cage are fixed with flanges 6, four section steels 2 are welded on the upper surfaces of the flanges at the upper ends and the lower surfaces of the flanges at the lower ends, and elongated threaded holes 8 are formed in the section steels;
concrete is poured on the reinforcement cage, the upper end of the concrete extends to the flange, the lower end of the concrete extends to the bottom of the section steel, and a connecting groove 7 is reserved at the section steel at the lower part of the section steel;
the section steel on the flange plate at the upper end of the reinforced concrete prefabricated column at the lower side is inserted into the section steel on the flange plate at the lower end of the reinforced concrete prefabricated column at the upper side and is fixed through strip-shaped threaded holes of the section steel and the flange plate through high-strength bolts 3.
Example 2:
the prefabricated reinforced concrete column-shaped steel connection node according to embodiment 1, wherein the reinforcement cage comprises a reinforcement ring formed by enclosing longitudinal reinforcements 4, and a plurality of annular stirrups 5 and internal tie bars are sleeved outside the reinforcement ring from top to bottom.
Example 3:
according to the reinforced concrete prefabricated column type steel connecting node in the embodiment 1 or 2, the bottom of the reinforced concrete prefabricated column is provided with the exhaust hole 11, the starting point of the exhaust hole is near the center of the bottom plane of the column, and the end point of the exhaust hole is 300-500 th of one side surface of the bottom of the column body.
Example 4:
according to the reinforced concrete prefabricated column-shaped steel connecting node in the embodiment 1, 2 or 3, the reinforcing steel ring is a square ring or a circular ring, and the flange is square or circular and matched with the reinforcing steel ring in shape.
Example 5:
according to the reinforced concrete prefabricated column type steel connecting node in the embodiment 1, 2, 3 or 4, the section steel is in a square steel shape, a channel steel shape, an angle steel shape or a flat steel shape.
Example 6:
according to the reinforced concrete prefabricated column type steel connecting node in the embodiment 1, 2, 3, 4 or 5, the flange plate and the longitudinal steel bar are connected in a reinforcing steel bar threading or welding mode.
Example 7:
a method for connecting reinforced concrete prefabricated column type steel connecting nodes,
the method comprises the following steps:
(1) producing the reinforced concrete prefabricated column;
firstly, erecting a reinforced concrete prefabricated column template, connecting the upper part of a longitudinal steel bar of the reinforced concrete prefabricated column with an upper flange, connecting the lower part of the longitudinal steel bar with a lower flange, connecting profile steel on the upper flange and the lower flange, hoisting and fixing a steel reinforcement cage with the profile steel flange in the template, arranging a concrete protective layer cushion block and fixing the concrete protective layer cushion block, arranging a prefabricated column supporting embedded part, a hoisting embedded part or a lifting hook in the reinforced concrete prefabricated column template, pouring concrete in the concrete template, covering the reinforced concrete prefabricated column template after pouring the concrete, and curing the concrete by using steam to finish the manufacturing of the reinforced concrete prefabricated column;
(2) mounting the reinforced concrete prefabricated column;
after the production of the reinforced concrete prefabricated column is finished, the concrete prefabricated column is hoisted and transported to a construction site through a hoisting embedded part or a lifting hook, a prefabricated column contour line and a control line are discharged on an operation surface, a cushion block is arranged at the column bottom and the elevation is hoisted, the reinforced concrete prefabricated column is hoisted, lower-layer column top section steel is inserted into prefabricated column bottom section steel, the alignment of bolt holes is adjusted, the prefabricated column is temporarily fixed through an inclined strut, the plane position and the verticality of the prefabricated column are adjusted, the reinforced concrete prefabricated column is finally fixed, a prefabricated column bottom base layer 12 is plugged and a grouting hole 10 is reserved, a high-strength screw rod is inserted into the aligned bolt hole and a nut is screwed, the mode of gradually screwing one by one and the final fixation are adopted, grouting materials are injected through the grouting hole, and gas in a cavity is discharged through an exhaust hole, so that the.

Claims (7)

1. The utility model provides a prefabricated post type steel connected node of reinforced concrete which characterized by: the reinforced concrete prefabricated column type steel connecting node comprises a plurality of reinforced concrete prefabricated columns, each reinforced concrete prefabricated column comprises a reinforcement cage, the upper end and the lower end of each reinforcement cage are fixed with a flange, four section steels are welded on the upper surface of the flange at the upper end and the lower surface of the flange at the lower end, and elongated threaded holes are formed in the section steels;
concrete is poured on the reinforcement cage, the upper end of the concrete extends to the flange plate, the lower end of the concrete extends to the bottom of the section steel, and a connecting groove is reserved at the section steel at the lower part of the section steel;
the section steel on the flange plate at the upper end of the reinforced concrete prefabricated column at the lower side is inserted into the section steel on the flange plate at the lower end of the reinforced concrete prefabricated column at the upper side and fixed through strip-shaped threaded holes of the section steel and the flange plate by high-strength bolts.
2. The reinforced concrete prefabricated column type steel connection node as claimed in claim 1, wherein: the steel reinforcement cage includes that vertical reinforcing bar encloses synthetic reinforcing bar ring, reinforcing bar ring outside from last to having a plurality of annular stirrups and inside lacing wire down the cover.
3. The reinforced concrete prefabricated column type steel connection node as claimed in claim 2, wherein: the bottom of the reinforced concrete prefabricated column is provided with an exhaust hole, the starting point of the exhaust hole is near the center of the plane of the column bottom, and the end point is at a position 300-500 th higher than one side face of the column body bottom.
4. The reinforced concrete prefabricated column type steel connection node as claimed in claim 3, wherein: the reinforcing bar ring is a square ring or a circular ring, and the flange plate is square or circular and matched with the reinforcing bar ring in shape.
5. The reinforced concrete prefabricated column type steel connection node as claimed in claim 4, wherein: the section steel is in the shape of square steel, channel steel, angle steel or flat steel.
6. The reinforced concrete prefabricated column type steel connection node as claimed in claim 5, wherein: the flange plate is connected with the longitudinal steel bars in a steel bar threading or welding mode.
7. A method for connecting the reinforced concrete precast column steel according to claims 1 to 6, which is characterized in that:
the method comprises the following steps:
(1) producing the reinforced concrete prefabricated column;
firstly, erecting a reinforced concrete prefabricated column template, connecting the upper part of a longitudinal steel bar of the reinforced concrete prefabricated column with an upper flange, connecting the lower part of the longitudinal steel bar with a lower flange, connecting profile steel on the upper flange and the lower flange, hoisting and fixing a steel reinforcement cage with the profile steel flange in the template, arranging a concrete protective layer cushion block and fixing the concrete protective layer cushion block, arranging a prefabricated column supporting embedded part, a hoisting embedded part or a lifting hook in the reinforced concrete prefabricated column template, pouring concrete in the concrete template, covering the reinforced concrete prefabricated column template after pouring the concrete, and curing the concrete by using steam to finish the manufacturing of the reinforced concrete prefabricated column;
(2) mounting the reinforced concrete prefabricated column;
after the production of the reinforced concrete prefabricated column is finished, the concrete prefabricated column is hoisted and transported to a construction site through a hoisting embedded part or a lifting hook, a prefabricated column contour line and a control line are discharged on an operation surface, a cushion block is arranged at the column bottom and the elevation is measured, the reinforced concrete prefabricated column is hoisted, lower-layer column top section steel is inserted into prefabricated column bottom section steel, the alignment of bolt holes is adjusted, the prefabricated column is temporarily fixed through an inclined strut, the plane position and the verticality of the prefabricated column are adjusted, the reinforced concrete prefabricated column is finally fixed, a foundation layer at the bottom of the prefabricated column is plugged and a grouting hole is reserved, a high-strength screw rod is inserted into the aligned bolt hole and a nut is screwed, the mode of gradually screwing one by one and the final fixation is adopted, grouting material is injected through the grouting hole, and gas in a cavity is discharged through an exhaust hole.
CN202010398660.5A 2020-05-12 2020-05-12 Reinforced concrete prefabricated column type steel connecting joint and connecting method Pending CN111456256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010398660.5A CN111456256A (en) 2020-05-12 2020-05-12 Reinforced concrete prefabricated column type steel connecting joint and connecting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010398660.5A CN111456256A (en) 2020-05-12 2020-05-12 Reinforced concrete prefabricated column type steel connecting joint and connecting method

Publications (1)

Publication Number Publication Date
CN111456256A true CN111456256A (en) 2020-07-28

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Application Number Title Priority Date Filing Date
CN202010398660.5A Pending CN111456256A (en) 2020-05-12 2020-05-12 Reinforced concrete prefabricated column type steel connecting joint and connecting method

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113152669A (en) * 2021-03-22 2021-07-23 河北工业大学 Assembly type reinforced concrete column and column splicing structure and method
CN113236006A (en) * 2021-05-25 2021-08-10 天津城建大学 Novel assembled concrete column connected node

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113152669A (en) * 2021-03-22 2021-07-23 河北工业大学 Assembly type reinforced concrete column and column splicing structure and method
CN113236006A (en) * 2021-05-25 2021-08-10 天津城建大学 Novel assembled concrete column connected node

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