CN216948757U - Crossed double-helix high-strength stirrup honeycomb type steel concrete column - Google Patents
Crossed double-helix high-strength stirrup honeycomb type steel concrete column Download PDFInfo
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- CN216948757U CN216948757U CN202220402039.6U CN202220402039U CN216948757U CN 216948757 U CN216948757 U CN 216948757U CN 202220402039 U CN202220402039 U CN 202220402039U CN 216948757 U CN216948757 U CN 216948757U
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Abstract
A crossed double-spiral high-strength stirrup honeycomb steel concrete column comprises honeycomb steel, longitudinal reinforcements, crossed high-strength spiral stirrups and cast-in-place concrete. Honeycomb shaped steel is the cellular H shaped steel that is formed by steel edge of a wing one, steel edge of a wing two and steel web welding, and the steel web setting is between steel edge of a wing one and steel edge of a wing two, and the steel web is for cutting along the broken line by real web form steel sheet, through the cellular steel sheet that butt weld welded formation, and the outside of honeycomb shaped steel sets up a plurality of muscle of indulging parallel with honeycomb shaped steel length direction, along a plurality of muscle outside winding spiral stirrup that excels in that indulges in a plurality of, along a plurality of muscle inboard winding spiral stirrup two that excels in that indulge. The utility model also provides a construction method of the column, and the column has the advantages of high bearing capacity, excellent fire resistance and earthquake resistance, convenient construction, steel consumption saving compared with a solid-web steel reinforced concrete column, and better integral performance of honeycomb steel and concrete.
Description
Technical Field
The utility model belongs to the technical field of buildings, and particularly relates to a crossed double-spiral high-strength stirrup honeycomb type steel concrete column.
Background
In recent years, the steel reinforced concrete structure is widely applied to super high-rise buildings and large-span heavy-load structures at home and abroad due to high strength, high rigidity and good ductility and energy consumption capability. However, with the development of super high-rise buildings, large-span structures and heavy plants, the load on the upper part of the structure is increased, so that the section size of the internal section steel is increased, the consumption of steel is increased, and the comprehensive construction cost of the project is improved.
In the traditional structure, most of the split stirrups are used as transverse stressed steel bars, however, two 135-degree anchoring hooks are required to be arranged at the tail end of each layer of split stirrups, and the consumption of steel is increased; meanwhile, seismic damage investigation of past times shows that the long column adopting the traditional separated stirrup is pulled straight and loose under the action of an earthquake, the bearing capacity of the structural column is lost, and the whole structure collapses, so that the seismic performance of the traditional separated stirrup is poor.
With the development of concrete materials and concrete engineering technologies, high-strength concrete and ultrahigh-performance concrete are increasingly widely applied, but due to the compact microstructure, steam generated by a member under the action of fire and high temperature is difficult to escape, so that a bursting behavior at high temperature is generated, and the mechanical property of the structure is finally weakened.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a crossed double-helix high-strength stirrup honeycomb steel concrete column to avoid high-temperature bursting and improve the fire-resistant and high-temperature-resistant performances of the column.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a crossed double-spiral high-strength stirrup honeycomb steel concrete column comprises honeycomb steel, longitudinal reinforcements, crossed high-strength spiral stirrups and cast-in-place concrete; the length direction of the longitudinal ribs is parallel to the length direction of the honeycomb-shaped steel and arranged outside the honeycomb-shaped steel; the crossed high-strength spiral stirrup comprises a first high-strength spiral stirrup wound along the outer side of the longitudinal reinforcement and a second high-strength spiral stirrup wound along the inner side of the longitudinal reinforcement, and the cast-in-place concrete is poured in the honeycomb steel, the longitudinal reinforcement and the crossed high-strength spiral stirrup.
In one embodiment, the honeycomb-shaped steel is honeycomb-shaped H-shaped steel formed by welding a first steel flange, a second steel flange and a steel web; the steel web is a honeycomb steel plate and is arranged between the first steel flange and the second steel flange.
In one embodiment, the first high-strength spiral stirrup is a square continuous spiral stirrup, the second high-strength spiral stirrup is a square or circular continuous spiral stirrup, the first high-strength spiral stirrup is fixed on the outer side of the longitudinal bar to form an outer reinforcing mesh, and the second high-strength spiral stirrup is fixed on the inner side of the longitudinal bar to form an inner reinforcing mesh.
In one embodiment, the high-strength helical stirrup or the high-strength helical stirrup is/are banded or welded to the longitudinal rib.
In one embodiment, the diameter of the adopted stirrups of the high-strength spiral stirrup I and the high-strength spiral stirrup II is 4-8 mm, the yield strength is more than 600MPa, and the distance between the stirrups is set to be 20-120 mm.
In one embodiment, the first high-strength helical reinforcement has a helical ascending direction opposite to that of the second high-strength helical reinforcement.
In one embodiment, the cast-in-place concrete is high strength concrete, ultra high performance concrete, recycled concrete, lightweight concrete, or thermal insulation concrete.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the structure performance is excellent.
The crossed double-helix high-strength stirrup honeycomb steel concrete column effectively improves the bearing capacity and ductility of the column and the bonding performance between steel and concrete through the restraint effect of a crossed continuous high-strength stirrup net on the transverse deformation of the concrete column and the two ways of arranging honeycomb steel; secondly, the possibility that the stirrup is loosened in the earthquake process is avoided by adopting a spiral stirrup form, and the earthquake resistance of the column is obviously improved; in addition, the restraint effect of the crossed continuous high-strength stirrup net on the core concrete can prevent high-temperature bursting, and the fire resistance and high-temperature resistance of the column are obviously improved.
(2) The construction is convenient and fast.
The construction process of the crossed double-helix high-strength stirrup honeycomb steel concrete column is divided into two stages, wherein the first stage is used for completing the manufacturing of a steel reinforcement framework in a factory, and the second stage is used for completing the work of formwork erecting and concrete pouring on a construction site. Compared with the traditional construction process of the steel reinforced concrete structure, the method reduces a large amount of work for binding the reinforcement cage on the construction site, is simple to transport, has little influence on the surrounding living environment, and is favorable for environmental protection and reduction of construction disturbance.
(3) The economic benefit is remarkable.
Compared with solid section steel, the honeycomb section steel saves about 25 percent of steel consumption and about 15 percent of cost; compared with the traditional separated stirrup, the spiral stirrup has obvious economic benefit compared with the traditional steel reinforced concrete column because two 135-degree anchoring hooks are reduced for each layer and the steel consumption is saved by 8-12%.
Drawings
FIG. 1 is a schematic perspective view of a cross double helix high strength stirrup cellular steel concrete column of the present invention.
FIG. 2 is a schematic cross-sectional view of a cross double helix high strength stirrup cellular steel concrete column of the present invention along the length direction.
FIG. 3 is a schematic perspective view of the honeycomb shaped steel of the present invention.
Fig. 4 is a perspective view of the reinforcement cage of the present invention.
Fig. 5 is a perspective view of a second embodiment of the present invention.
Fig. 6 is a schematic cross-sectional view of a second embodiment of the present invention taken along the length thereof.
Fig. 7 is a perspective view of a reinforcing cage according to a second embodiment of the present invention.
The reference numerals explain:
100 parts of honeycomb section steel; a first steel flange 101; a second steel flange 102; a steel web 103; longitudinal ribs 200; the outer layer is a high-strength spiral stirrup 301; the inner layer high-strength spiral stirrup second 302; the concrete 400 is cast in situ.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1 and 2, the present invention is a cross double-spiral high-strength stirrup honeycomb steel concrete column, which comprises honeycomb steel 100, longitudinal bars 200, cross high-strength spiral stirrups and cast-in-place concrete 400. Wherein, the length direction of the longitudinal bar 200 is parallel to the length direction of the honeycomb-shaped steel 100, is arranged outside the honeycomb-shaped steel 100, and has a certain distance with the honeycomb-shaped steel 100; the crossed high-strength spiral stirrup comprises a first high-strength spiral stirrup 301 and a second high-strength spiral stirrup 302, the first high-strength spiral stirrup 301 is wound along the outer side of the longitudinal bar 200, the second high-strength spiral stirrup 302 is wound along the inner side of the longitudinal bar 200, and the cast-in-place concrete 400 is poured in the honeycomb steel 100, the longitudinal bar 200 and the crossed high-strength spiral stirrup.
Obviously, in the present invention, the honeycomb structural steel 100, the longitudinal bars 200 and the crossed high-strength helical stirrups are prefabricated parts in a construction site, and the cast-in-place concrete 400 is a cast-in-place part in a construction site. The cast-in-place concrete 400 may be high-strength concrete, ultra-high performance concrete, recycled concrete, lightweight concrete, or heat-insulating concrete.
In one embodiment, as shown in fig. 1, 2 and 3, the honeycomb-shaped steel 100 of the present invention is a honeycomb-shaped H-shaped steel formed by welding a first steel flange 101, a second steel flange 102 and a steel web 103; the steel web 103 is a honeycomb steel plate, can be formed by cutting a solid web-shaped steel plate along a broken line and welding the solid web-shaped steel plate through a butt weld, and the steel web 103 is arranged between the first steel flange 101 and the second steel flange 102. For example, the honeycomb steel 100 may be formed by cutting a web of H-shaped steel, welding the web after shifting the position, or welding the web of H-shaped steel with a cut high strength steel plate. The steel web 103 can be cut according to the designed expansion ratio and spliced to form the honeycomb web.
In one embodiment, as shown in fig. 1, 2, 4 and 5, the first high-strength helical stirrup 301 of the present invention is a square continuous helical stirrup, the second high-strength helical stirrup 302 is a square or circular continuous helical stirrup, the first high-strength helical stirrup 301 is fixed to the outer side of the longitudinal bar 200 to form an outer mesh reinforcement, and the second high-strength helical stirrup 302 is fixed to the inner side of the longitudinal bar 200 to form an inner mesh reinforcement. The first high-strength spiral stirrup 301 or the second high-strength spiral stirrup 302 is fixed with the longitudinal bar 200 in a binding or welding mode. Illustratively, the diameter of the adopted stirrups of the first high-strength spiral stirrup 301 and the second high-strength spiral stirrup 302 is 4-8 mm, the yield strength is more than 600MPa, and the distance between the stirrups is set to be 20-120 mm.
In one embodiment, the first high-strength helical stirrup 301 has a helical rising direction opposite to that of the second high-strength helical stirrup 302.
The specific construction method of the utility model is as follows:
step one, cutting a high-strength steel plate into a first steel flange 101, a second steel flange 102 and a steel web 103 according to design requirements in a factory;
step two, welding the first steel flange 101, the second steel flange 102 and the steel web 103 according to the requirement that the steel web 103 is arranged between the first steel flange 101 and the second steel flange 102 to form the honeycomb steel 100;
step three, manufacturing a first high-strength spiral stirrup 301 and a second high-strength spiral stirrup 302 by using automatic spiral stirrup forming equipment according to the designed diameter, distance and other requirements of stirrups;
step four, binding the second high-strength spiral stirrup 302 on the inner side of the longitudinal reinforcement 200, then binding the first high-strength spiral stirrup 301 on the outer side of the longitudinal reinforcement 200, and forming a steel reinforcement framework by the longitudinal reinforcement 200, the first high-strength spiral stirrup 301 and the second high-strength spiral stirrup 302;
transporting the honeycomb steel 100 and the steel reinforcement framework to a construction site, and fixing the honeycomb steel 100 and the steel reinforcement framework at a specified position;
and step six, supporting a template, and pouring the specified cast-in-place concrete 400 in situ.
By adopting the crossed continuous high-strength spiral net technology, the bearing capacity and the ductility of the column are effectively improved, the possibility of stirrup tripping in an earthquake is avoided, the earthquake resistance and the hysteresis performance of the column are obviously improved, the high-strength concrete bursting behavior at high temperature is effectively inhibited, the fire resistance and the high-temperature resistance of the column are obviously improved, and meanwhile, the high-strength honeycomb steel and the high-strength concrete are adopted, so that the section size is reduced, the steel consumption is saved, the engineering cost is reduced, and the high-performance steel reinforced concrete column is a novel high-performance steel reinforced concrete column technology. The crossed double-helix high-strength stirrup honeycomb steel concrete column provided by the utility model can finish the processing of profile steel and a steel reinforcement framework in a workshop, can finish construction only by pouring concrete on site, has the advantages of convenience in construction, wide applicability, convenience in transportation and the like, can be widely applied to various engineering structures such as buildings, plants and the like, has wide application prospect, and has important engineering practice significance and social and economic benefits.
Claims (7)
1. The crossed double-spiral high-strength stirrup honeycomb steel concrete column is characterized by comprising honeycomb steel (100), longitudinal reinforcements (200), crossed high-strength spiral stirrups and cast-in-place concrete (400); the length direction of the longitudinal ribs (200) is parallel to the length direction of the honeycomb-shaped steel (100) and is arranged outside the honeycomb-shaped steel (100); the crossed high-strength spiral stirrup comprises a first high-strength spiral stirrup (301) wound along the outer side of the longitudinal bar (200) and a second high-strength spiral stirrup (302) wound along the inner side of the longitudinal bar (200), and cast-in-place concrete (400) is poured in the honeycomb steel (100), the longitudinal bar (200) and the crossed high-strength spiral stirrup.
2. The crossed double-helix high-strength stirrup cellular steel concrete column as claimed in claim 1, wherein the cellular steel (100) is cellular H-shaped steel formed by welding a first steel flange (101), a second steel flange (102) and a steel web (103); the steel web plate (103) is a honeycomb steel plate and is arranged between the first steel flange (101) and the second steel flange (102).
3. The crossed double-helix high-strength stirrup cellular steel concrete column according to claim 1, wherein the first high-strength spiral stirrup (301) is a square continuous spiral stirrup, the second high-strength spiral stirrup (302) is a square or round continuous spiral stirrup, the first high-strength spiral stirrup (301) is fixed on the outer side of the longitudinal bar (200) to form an outer reinforcing mesh, and the second high-strength spiral stirrup (302) is fixed on the inner side of the longitudinal bar (200) to form an inner reinforcing mesh.
4. The crossed double-helix high-strength stirrup cellular steel concrete column according to claim 3, characterized in that the first high-strength spiral stirrup (301) or the second high-strength spiral stirrup (302) is bound or welded to the longitudinal bar (200).
5. The crossed double-helix high-strength stirrup cellular steel concrete column as claimed in claim 1, wherein the diameter of the stirrups adopted by the first high-strength spiral stirrup (301) and the second high-strength spiral stirrup (302) is 4-8 mm, the yield strength is more than 600MPa, and the distance between the stirrups is set to be 20-120 mm.
6. The crossed double-helix high-strength-hooped honeycomb steel-concrete column as claimed in claim 1 or 2 or 3 or 4 or 5, characterized in that the direction of the helix of the high-strength spiral hoop I (301) is opposite to the direction of the helix of the high-strength spiral hoop II (302).
7. The crossed double-helix high-strength stirrup cellular steel concrete column according to claim 1, characterized in that the cast-in-place concrete (400) is high-strength concrete, ultra-high performance concrete, recycled concrete, lightweight concrete or thermal insulation concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220402039.6U CN216948757U (en) | 2022-02-25 | 2022-02-25 | Crossed double-helix high-strength stirrup honeycomb type steel concrete column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220402039.6U CN216948757U (en) | 2022-02-25 | 2022-02-25 | Crossed double-helix high-strength stirrup honeycomb type steel concrete column |
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| CN216948757U true CN216948757U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220402039.6U Active CN216948757U (en) | 2022-02-25 | 2022-02-25 | Crossed double-helix high-strength stirrup honeycomb type steel concrete column |
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