CN214364437U

CN214364437U - Partially prefabricated and assembled T-shaped steel concrete column with hidden column

Info

Publication number: CN214364437U
Application number: CN202023224203.9U
Authority: CN
Inventors: 刘祖强; 周志明; 王肖男; 薛建阳; 梁钰强
Original assignee: Xian University of Architecture and Technology
Current assignee: Xian University of Architecture and Technology
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-08
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a partially prefabricated T-shaped column with hidden column steel reinforced concrete, which comprises a partially prefabricated T-shaped column shell with hidden column steel reinforced concrete and internal cast-in-place concrete; the shell comprises precast concrete and a T-shaped steel-steel reinforcement framework; the framework is a solid web type T-shaped steel surrounded by stirrups and longitudinal bars and comprises a T-shaped steel formed by a steel web and a side wing steel plate, and the side wing steel plate and the steel web are respectively connected with a pattern steel plate to form a convex cavity; the outer side of the end part of the convex cavity is provided with a hidden column; the inner cast-in-place concrete is poured in a convex cavity of a part of prefabricated T-shaped column shell with the hidden column steel concrete. Meanwhile, a hidden column is arranged at the web of the partially prefabricated T-shaped column with the hidden column steel reinforced concrete to enhance the anti-seismic performance of the column. The T-shaped column can enhance the bearing capacity of the column, compensate the asymmetry of the column, greatly improve the ductility of the column and solve the problems of difficult hoisting and transportation and environmental pollution caused by cast-in-place concrete columns.

Description

Partially prefabricated and assembled T-shaped steel concrete column with hidden column

Technical Field

The utility model relates to a prefabricated assembly shaped steel concrete dysmorphism post, concretely relates to partly prefabricated assembly's dark post shaped steel concrete T in area shape post.

Background

The development of steel and concrete composite structures has been achieved to date. The steel reinforced concrete has the advantages of both concrete and steel, can make up the respective defects, and is one of the development trends of the building industry at present due to the good stress performance and characteristics of the steel reinforced concrete.

The traditional construction method in China is site construction, but with the increasing call of 'green buildings', the construction method cannot meet the requirements of society on low consumption and environmental protection, and the steel reinforced concrete structure is different from a common reinforced concrete structure, so that the construction is more difficult, the working procedures are complicated, the technical requirements on constructors are high, the time and the economic cost for construction are high, the economic benefit is reduced, and the popularization of the construction method is limited. With the development of prefabricated structures, the fully prefabricated steel reinforced concrete structure is produced, and all components of the steel reinforced concrete structure are produced in a factory and then transported to a construction site for splicing and assembling. The construction method ensures the quality of each component, can control the processing progress, and is green and environment-friendly. However, the method has the defects of poor integrity, large self weight of the member and high transportation and hoisting cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can be applicable to industrial batch production, promote building structure anti-seismic performance again, can reduce the bearing capacity of the prefabricated assembly of part, the reinforcing post of component transportation hoist and mount cost simultaneously, compensate the asymmetry of post to can greatly improve the ductile dark post type steel concrete T shape post in area of post.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a partially prefabricated T-shaped column with hidden column steel reinforced concrete, which comprises a partially prefabricated T-shaped column shell with hidden column steel reinforced concrete and internal cast-in-place concrete; the partially prefabricated T-shaped column shell with the hidden column comprises precast concrete and a T-shaped steel-steel reinforcement framework;

the T-shaped steel-steel bar framework comprises solid web type T-shaped steel surrounded by stirrups and longitudinal bars, the solid web type T-shaped steel comprises T-shaped steel formed by a first steel web plate, a second steel web plate and a side wing steel plate which are distributed in a T shape, and both sides of the side wing steel plate and the second steel web plate are respectively connected with a pattern steel plate to form a convex cavity; the outer side of the end part of the convex cavity is provided with a hidden column; the inner cast-in-place concrete is poured in a convex cavity of a part of prefabricated T-shaped column shell with the hidden column steel concrete.

Preferably, the peripheral skeleton forming the convex cavity comprises a pattern steel plate connected between the side wing steel plates on one side of the first section steel web plate, and the pattern steel plate connected to the side wing steel plate on the other side of the first section steel web plate is connected to the middle of the second section steel web plate in a bent shape.

Preferably, the first section steel web plate and the second section steel web plate are fixed with studs at two sides, and two ends of the studs are connected to the pattern steel plate.

Preferably, the rows of the studs welded on the web plates of the first section steel and the second section steel are arranged in the same vertical row or staggered.

Preferably, the hidden column comprises a side wing steel plate connected with the end part of the second type steel web plate, and a stirrup and a longitudinal bar which are arranged around the side wing steel plate, and precast concrete is poured in a frame surrounded by the stirrup and the longitudinal bar.

Preferably, the longitudinal ribs are arranged around the first profile steel web plate and the second profile steel web plate which are distributed in a T shape, the stirrups are bound on the longitudinal ribs, and the stirrups are welded on two sides of the first profile steel web plate and the second profile steel web plate and do not penetrate through.

Preferably, the width a of the wing steel plate is (1/4-1/2) b, and b is the limb thickness of the T-shaped column.

Preferably, the height-limb thickness ratio of the T-shaped column limb is 2-3, 1 row of studs are welded on the second section steel web plate, and the studs are not welded on the first section steel web plate;

when the height-limb thickness ratio of the T-shaped column limb is 3, 1 or 2 rows of studs are welded on the second section steel web plate, and 1 row of studs are welded on the first section steel web plate;

when the high limb thickness ratio of T shape column is 3 ~ 4, weld 2 rows of pegs on the second shaped steel web, weld 1 row of pegs on the first shaped steel web.

Preferably, when only 1 row of studs are arranged on the section steel web plate, the distance D1 between the upper stud and the lower stud takes the value of (1.5-4) s, and s is the distance between stirrups;

when 2 rows of studs are arranged on the web plate of the section steel, the vertical distance D2 between the upper stud and the lower stud is more than or equal to 0.75D1, and the horizontal distance L between the two studs is more than or equal to 150 mm.

The utility model relates to a partly prefabricated assembly take dark post shaped steel concrete T shape post based on cast-in-place shaped steel concrete column and the advantage and the not enough of prefabricated assembled shaped steel concrete column entirely, combine the two, make full use of respective strong point, compensate each other. Meanwhile, the theoretical calculation shows that the T-shaped section area under the condition of equal inertia moment is smaller than the rectangular section area, and the T-shaped section can be inferred to have higher rigidity than the equal-area rectangle, so that the sectional form of the T-shaped column is preferentially selected on the premise of meeting the anti-seismic requirement, the material can be saved, the indoor layout is neat and elegant, the corner space is effectively utilized, and the using area of the building is increased.

Compared with the prior art, the utility model is characterized in that:

1) the partially prefabricated and assembled steel concrete column with the hidden column is based on the fully prefabricated and assembled concrete column and the cast-in-place concrete column, so that the industrial prefabricated production is realized, the environmental pollution of a construction site is reduced, the transportation and hoisting cost of the traditional prefabricated and assembled steel concrete column is reduced, and the social benefit is good.

2) Adopt decorative pattern steel sheet formwork between inside cast in situ concrete and the precast segment concrete, need not on the one hand to tear open the mould, construction convenience, on the other hand reduces because the crack that the intensity difference produced between cast in situ concrete and the precast concrete.

3) The concrete of the prefabricated part of the partially prefabricated and assembled section steel concrete with the hidden column is concrete, so that the durability and the toughness of the structure are further improved, and the cast-in-place concrete part can also reduce the cost of raw materials and has good economic benefit.

4) The steel reinforced concrete column has better anti-seismic performance, the bearing capacity and the ductility of the column are obviously improved, and the excellent characteristics of concrete and steel are fully utilized to make up the defects of independent use of the concrete and the steel.

5) The column section form is reasonably utilized, the T-shaped column can be integrated with a wall to form a hidden column, the column corner is prevented from protruding in a room, the actual use area of the room is increased, and the flexibility and the convenience of a building are improved.

6) According to a large number of test results, the hidden column is arranged in the T-shaped column, so that the bearing capacity of the column can be enhanced, the asymmetry of the column can be compensated, and the ductility of the column can be greatly improved.

Drawings

FIG. 1 is a schematic cross-sectional view of a partially prefabricated assembled steel reinforced concrete T-shaped column housing with a column height to column thickness ratio of 2;

FIG. 2 is a schematic cross-sectional view of a partially prefabricated assembled steel reinforced concrete T-shaped column with a limb height to limb thickness ratio of 2;

FIG. 3 is a schematic cross-sectional view of a partially prefabricated assembled steel reinforced concrete T-shaped column housing with a column height to column thickness ratio of 3;

FIG. 4 is a schematic cross-sectional view of a partially prefabricated assembled steel reinforced concrete T-shaped column housing with a column height to column thickness ratio of 4;

FIG. 5 is a schematic elevation of a partially prefabricated assembled steel reinforced concrete T-shaped column with a stud for the column limb;

FIG. 6 is an elevational schematic view of a partially prefabricated assembled steel reinforced concrete T-shaped column with a hidden column having two studs for the column limb;

FIG. 7 is a schematic illustration of a partially prefabricated T-section steel assembled with a hidden column steel reinforced concrete T-column.

In the figure: 1. hooping; 2. a side wing steel plate; 3. a patterned steel plate; 4. prefabricating concrete; 5. a first steel web; 6. a second type steel web; 7. a convex cavity; 8. a stud; 9. longitudinal ribs; 10. casting concrete in situ inside; 11. and (4) dark columns.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2, the embodiment of the utility model provides a dark post shaped steel concrete T of area post of partial prefabricated assembly, including the dark post shaped steel concrete T of area post shell (fig. 1) of partial prefabricated assembly to and inside cast in situ concrete 10, the dark post shaped steel concrete T of area post shell (fig. 1) of partial prefabricated assembly includes precast concrete 4 and T shape shaped steel-steel reinforcement cage, T shape shaped steel-steel reinforcement cage comprises vertical muscle 9, stirrup 1 and T shape shaped steel, T shape shaped steel includes flank steel sheet 2 and is the profiled steel web that T shape distributes, the profiled steel web includes first profiled steel web 5 and second profiled steel web 6, mutually perpendicular connects, is T shape. The flank steel plate 2 is fixed at one end of a second section steel web 6 and two ends of a first section steel web 5, and the two sides of the flank steel plate 2 and the two sides of the second section steel web 6 are respectively connected with the figured steel plate 3 to form a convex cavity 7; the internal cast-in-place concrete 10 is poured into the convex cavity 7 of the partially prefabricated T-shaped column shell with the hidden column steel reinforced concrete. At the same time, the studs 8 are fixed on the two sides of the section steel web plate to tie the concrete. The side wing steel plates are connected with the web plates and the web plates in a fillet weld welding mode.

Wherein, the peripheral skeleton of convex cavity 7 is including connecting the decorative pattern steel sheet 3 between the flank steel sheet 2 of one side of first shaped steel web 5, and the decorative pattern steel sheet 3 of connecting is the middle part that the form is connected at second shaped steel web 6 of buckling on the flank steel sheet 2 of the opposite side of first shaped steel web 5.

As shown in figure 3, the peg 8 is fixed on both sides of the first section steel web 5 and the second section steel web 6, and both ends of the peg 8 are connected to the pattern steel plate 3.

According to the stress characteristics of the T-shaped column, the area of the flange end is larger than that of the web end, more steel is distributed, the bearing force of the flange end is higher than that of the web end, and the stress is extremely asymmetric, so that an additional longitudinal rib is additionally arranged at the web of the T-shaped column to form the hidden column 11, the stress of the T-shaped column is balanced, and the bearing capacity of the column can be improved to a certain extent by the arrangement of the hidden column. Longitudinal ribs 9 are arranged around the T-shaped steel, additional longitudinal ribs 9 are arranged at web plates of the T-shaped steel to form hidden columns 11, the hidden columns 11 comprise side wing steel plates 2 connected with the end portions of second type steel web plates 6, stirrups 1 and longitudinal ribs 9 are arranged around the side wing steel plates 2, and precast concrete 4 is poured in a frame surrounded by the stirrups 1 and the longitudinal ribs 9. The limb height of the hidden column 11 is designed according to the specification, the longitudinal bars 9 and the stirrups 1 are bound together to form a steel reinforcement framework, and then the T-shaped steel-steel reinforcement framework is formed.

The T-shaped steel is formed by welding steel plates with different thicknesses, and the T-shaped steel is welded around the T-shaped steel by using a pattern steel plate as a template, wherein the pattern steel plate is welded on the flank steel plate at the flange position of the T-shaped steel, the pattern steel plate at the web plate of the T-shaped steel is welded on the web plate and is arranged on the outer side of the hidden column, so that the concrete in the hidden column is a prefabricated part. And (4) adding longitudinal ribs and reserving drilling holes required by the studs on the patterned steel plate to form a closed T-shaped column body.

And (4) manufacturing a prefabricated shell in a factory, and transporting the prefabricated shell to a construction site to pour concrete at the core part in the internal cavity after the prefabricated assembly type steel concrete T-shaped column shell is cured.

In order to prevent the stud from weakening the concrete member when the column is too short, and ensure that the stud can effectively tie the concrete. In one embodiment, referring to FIG. 1, the width a of the steel plate at the side of the T-shaped steel of the T-shaped column is (1/4-1/2) b, and b is the limb thickness of the T-shaped column. With reference to the figures 1, 3 and 4, for the T-shaped column with the limb height-limb thickness ratio of 2-3, no stud is welded on the web plate of the section steel; for a T-shaped column with the limb height-limb thickness ratio of 3, welding a row of studs on the second section steel web 6, and welding 1 row of studs on the first section steel web 5; for the stud T-shaped column with the limb height-limb thickness ratio of 3-4, 2 rows of studs are welded on the second

profile steel web

6, and 1 row of studs are welded on the first profile steel web 5.

In order to avoid that the distance between the stud and the stirrup is too close, which causes construction difficulty and internal defects in the concrete, destroys the integrity of the concrete, and prevents the concrete between the stud and the stirrup from being too thin to weaken the concrete and reduce the overall strength of the member. As shown in FIG. 5, when only one row of studs is arranged on the steel web, in order to reduce the weakening of the studs to the member and effectively tie the concrete, the distance D1 between the upper stud and the lower stud takes the value of (1.5-4) s, and s is the distance between the stirrups 1. As shown in FIG. 6, when two rows of pegs are arranged on the web plate of the section steel, the vertical distance D2 between the upper peg and the lower peg is more than or equal to 0.75D1, and the horizontal distance L between the two pegs is more than or equal to 150 mm.

The stud is fixed on the web plate of the T-shaped steel, the longitudinal bars are arranged around the stud, the stirrups are bound on the longitudinal bars and are welded on the two sides of the web plate without being communicated, and the stirrups, the longitudinal bars and the section steel form a T-shaped steel-steel bar framework. FIG. 7 is a perspective view of a T-section steel.

The utility model discloses a dark post shaped steel concrete T shape post shell in area of part prefabricated assembly makes in the mill in advance and accomplishes, and the good maintenance condition of mill provides the advantage for precast concrete, and the quality of prefabricated shell obtains guaranteeing, and the time of very big reduction site operation.

The technical scheme of the utility model, based on prefabricated assembled shaped steel concrete post and cast-in-place shaped steel concrete column entirely, improved the ductility and the anti-seismic performance of component, reduced the transportation and the hoist and mount cost of prefabricated assembled shaped steel concrete column entirely, reduce the site operation time of cast-in-place shaped steel concrete column, also reduce the pollution degree to the environment simultaneously, have good society, economic benefits.

While certain exemplary embodiments of the present invention have been described above by way of illustration, it will be apparent to those of ordinary skill in the art that modifications to the described embodiments may be made in many different ways without departing from the spirit and scope of the invention. Other embodiments are within the scope of the present invention.

Claims

1. A partially prefabricated T-shaped column with a hidden column and steel reinforced concrete is characterized by comprising a partially prefabricated T-shaped column shell with a hidden column and steel reinforced concrete cast in situ (10); the partially prefabricated T-shaped column shell with the hidden column comprises precast concrete (4) and a T-shaped steel-steel reinforcement framework;

the T-shaped steel-steel reinforcement framework comprises solid web type T-shaped steel surrounded by stirrups (1) and longitudinal reinforcements (9), the solid web type T-shaped steel comprises T-shaped steel formed by a first steel web (5), a second steel web (6) and a flank steel plate (2) which are distributed in a T shape, and both sides of the flank steel plate (2) and the second steel web (6) are respectively connected with a pattern steel plate (3) to form a convex cavity; a hidden column (11) is arranged outside the end part of the convex cavity; the inner cast-in-place concrete (10) is poured in a convex cavity (7) of a partially prefabricated T-shaped column shell with the hidden column steel concrete.

2. The partially prefabricated T-shaped steel concrete column with hidden columns according to claim 1, wherein the peripheral framework forming the convex cavity (7) comprises a pattern steel plate (3) connected between the side wing steel plates (2) on one side of the first section steel web (5), and the pattern steel plate (3) connected to the side wing steel plate (2) on the other side of the first section steel web (5) is connected to the middle of the second section steel web (6) in a bent shape.

3. The partially prefabricated T-pillar with hidden pillar steel reinforced concrete according to claim 2, wherein studs (8) are fixed to both sides of the first section steel web (5) and the second section steel web (6), and both ends of the studs (8) are connected to the pattern steel plate (3).

4. The partially prefabricated T-pillar with embedded columns of steel reinforced concrete according to claim 3, wherein the rows of studs (8) welded to the first section steel web (5) and the second section steel web (6) are arranged in the same row or staggered.

5. The partially prefabricated T-shaped steel concrete column with the hidden column according to claim 2, wherein the hidden column (11) comprises a side wing steel plate (2) connected to the end of the second type steel web (6), and a hoop reinforcement (1) and a longitudinal reinforcement (9) arranged around the side wing steel plate (2), and the precast concrete (4) is poured in a frame surrounded by the hoop reinforcement (1) and the longitudinal reinforcement (9).

6. The partially prefabricated T-pillar with hidden pillar steel concrete according to claim 1, wherein longitudinal bars (9) are arranged around the first type steel web (5) and the second type steel web (6) in a T-shaped distribution, the stirrups (1) are bound on the longitudinal bars (9), and the stirrups (1) are welded on two sides of the first type steel web (5) and the second type steel web (6) without being penetrated.

7. The partially prefabricated T-shaped steel concrete column with a hidden column according to claim 1, wherein the width a of the wing steel plate (2) is 1/4 b-1/2 b, and b is the limb thickness of the T-shaped column.

8. The partially prefabricated T-shaped column with the hidden column steel reinforced concrete is characterized in that the height-limb thickness ratio of the T-shaped column is between 2 and 3, 1 row of studs are welded on a second section steel web plate (6), and no stud is welded on a first section steel web plate (5);

when the height-limb thickness ratio of the T-shaped column limb is 3, 1 or 2 rows of studs are welded on the second section steel web plate (6), and 1 row of studs are welded on the first section steel web plate (5);

when the high limb thickness ratio of T shape column is 3 ~ 4, weld 2 rows of pegs on second type steel web (6), weld 1 row of pegs on first type steel web (5).

9. The partially prefabricated T-shaped steel reinforced concrete column with the hidden column as claimed in claim 1, wherein when only 1 row of studs are arranged on the steel web, the distance D1 between the upper stud and the lower stud is 1.5 s-4 s, and s is the distance between stirrups (1);