CN113931377A - Prefabricated steel and thin cladding concrete combined upright post - Google Patents
Prefabricated steel and thin cladding concrete combined upright post Download PDFInfo
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- CN113931377A CN113931377A CN202111238653.XA CN202111238653A CN113931377A CN 113931377 A CN113931377 A CN 113931377A CN 202111238653 A CN202111238653 A CN 202111238653A CN 113931377 A CN113931377 A CN 113931377A
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- shaped steel
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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
- E04C3/32—Columns; Pillars; Struts of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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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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Abstract
本发明提供了一种预制钢与薄包覆砼组合立柱，其包括H型钢1、螺纹纵筋3、箍件4和薄包覆混凝土5；具体的，所述H型钢1包括多段结构柱体，多段结构柱体首尾节点连接，所述节点连接处预设有灌浆孔8；所述螺纹纵筋3沿所述H型钢1的柱高方向焊接于所述H型钢1上；所述箍件4套箍设于所述螺纹纵筋3；以及所述外包浇筑于所述H型钢1、螺纹纵筋3和箍件4。本方案通过螺纹纵筋3、H型钢1与薄包覆混凝土5共同承担荷载，螺纹纵筋3的螺纹结构加强了与混凝土之间粘结能力，且所有结构件便于标准化生产，具有更好的经济性。
The present invention provides a prefabricated steel and thin-clad concrete composite column, which includes H-shaped steel 1, threaded longitudinal bars 3, hoop pieces 4 and thin-clad concrete 5; specifically, the H-shaped steel 1 includes a multi-section structural column , the head and tail nodes of the multi-section structural column are connected, and grouting holes 8 are preset at the node connections; the threaded longitudinal bars 3 are welded on the H-shaped steel 1 along the column height direction of the H-shaped steel 1; the hoop 4 sets of hoops are arranged on the threaded longitudinal bars 3 ; In this scheme, the threaded longitudinal bars 3, H-shaped steel 1 and the thin clad concrete 5 jointly bear the load. The thread structure of the threaded longitudinal bars 3 strengthens the bonding ability with the concrete, and all structural parts are convenient for standardized production and have better performance. economical.
Description
Technical Field
The invention relates to a steel-concrete structural column, in particular to a prefabricated steel and thin-coated concrete combined column.
Background
The prefabricated upright columns commonly used at present have various forms, but have various defects, such as:
prefabricating a concrete column: heavy weight and difficult hoisting, and the connection node with the beam is generally in cast-in-place wet connection;
steel column: the paint needs to be made into anticorrosive paint and fireproof coating, and has poor economy;
steel reinforced concrete column: the section size is large (the minimum side length is 450mm), a large number of studs need to be welded on the steel ribs, and the configuration of the steel bars is complex;
a steel pipe concrete column: although the mechanical property is better, corrosion prevention and fire prevention measures are required to be additionally made;
a PEC column: need fire prevention and antiseptic treatment, but the cost is higher.
Therefore, it is an urgent problem to be solved in the prior art to provide a prefabricated column which is convenient for standard production and more economical.
Disclosure of Invention
The invention provides a prefabricated upright post convenient for standard production and more economical, and provides a prefabricated steel and thin-coated concrete combined upright post, which is characterized by comprising the following components in parts by weight:
h-shaped steel;
the threaded longitudinal ribs are arranged along the column height direction of the H-shaped steel and welded on the flange of the H-shaped steel;
the hoop piece is sleeved on the threaded longitudinal rib; and
and (3) thin coating concrete, and prefabricating and coating the H-shaped steel, the threaded longitudinal bar and the hoop member in a factory.
The invention has the beneficial effects that:
the thread longitudinal ribs, the H-shaped steel and the thin-coated concrete of the invention share the compression resistance and the bending resistance, and the problems of poor weak axis bending resistance and low torsional rigidity of the cross section of the H-shaped steel upright are solved. The bonding capability between the H-shaped steel and the concrete is enhanced by the welding of the threaded structure of the threaded longitudinal rib of the H-shaped steel and the welding of the stirrup and the flange of the H-shaped steel, and the bonding force between the concrete and the H-shaped steel is also increased. Through the welding of the longitudinal ribs, the stirrups and the H-shaped steel, compared with the conventional steel concrete column, the concrete outer coating thickness can be greatly reduced (generally within 50mm, the conventional cast-in-place steel concrete column needs about 150 mm), so that the section size of the column is greatly reduced, and meanwhile, studs do not need to be welded on the column; under the condition that the size of the section outer wrapping is not changed, the bearing capacity of the upright post can be adjusted through the number and the diameter of the longitudinal ribs, so that the section specification is favorably reduced, and the standardized production is facilitated; compared with a steel upright post, the steel upright post does not need to be additionally made with fireproof coating and anticorrosive paint; therefore, the method has good economy.
As a preferred embodiment of this embodiment, the number of the H-shaped steels is multiple, and adjacent H-shaped steels are connected by a gusset plate.
As a preferred embodiment of this embodiment, the number of the H-shaped steels is multiple, and adjacent H-shaped steels are connected by flanges.
As a preferred embodiment of this embodiment, the H-shaped steel is provided with a bracket connected to the structural beam, and the bracket is exposed out of the thin-coated concrete.
As a preferred embodiment of this embodiment, the number of the longitudinal ribs is multiple, and the multiple longitudinal ribs are located at the flange corners of the H-shaped steel.
As a preferred embodiment of this embodiment, the longitudinal rib is also located on the web cavity side of the H-shaped steel. The advantage is that different reinforcing bars can be configured according to the stress requirement, so that multiple bearing capacities can be provided under the condition that the outer size of the upright post is not changed, and the section specification and the die cost are reduced.
As a preferred embodiment of this embodiment, the hoop member is a stirrup.
As a preferred embodiment of this embodiment, the hoop member is a steel wire mesh.
As a preferred embodiment of this embodiment, the H-shaped steel of multiple sections is connected by end-to-end joints, and the joints of the H-shaped steel are provided with grouting holes.
As a preferred embodiment of this embodiment, the hoop member is welded to the flange of the H-beam. This has the advantage that the pressure in the steel section can be transmitted to the concrete by the stirrups, allowing the concrete to bear together.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention.
Fig. 2 is a sectional view showing the effect of structural installation of the present invention.
Fig. 3 is an elevational view of the structure of the present invention installed.
Fig. 4 is a mounting structure view of another thread longitudinal rib of the structure of the invention.
Detailed Description
The embodiment provides a prefabricated steel and thin-coated concrete combined upright post which comprises H-shaped steel 1, threaded longitudinal ribs 3, hoop pieces 4 and thin-coated concrete 5; specifically, the H-shaped steel 1 can be single or multi-section, the multi-section H-shaped steel 1 is connected in an end-to-end node manner, and grouting holes 8 are preset at the joint of the nodes; the threaded longitudinal ribs 3 are welded on the H-shaped steel 1 along the column height direction of the H-shaped steel 1; the hoop member 4 is sleeved on the thread longitudinal rib 3; and the thin cladding concrete is coated and poured on the H-shaped steel 1, the threaded longitudinal rib 3 and the hoop member 4 to form a thin layer. This scheme is indulged muscle 3, H shaped steel 1 and thin cladding concrete 5 through the screw thread and is born the load jointly, the screw thread indulges the helicitic texture of muscle 3 and strengthened and concrete between the bonding ability, and all structures standardized production of being convenient for, have good economic nature.
H shaped steel 1 can adopt assembled or prefabricated according to the needs of cylinder height, adopts the mode of end to end connection between the multistage structure cylinder to reach high adaptation adjustment, the multistage through flange joint between the structure cylinder, also can connect through gusset plate 2. In the embodiment, the gusset plates 2 are taken as an example and are described in combination with the accompanying drawings, specifically, the gusset plates 2 are arranged at the head and the tail of the structural cylinders, mounting holes are correspondingly formed in the gusset plates 2 between the adjacent structural cylinders, and then the mounting holes are connected through the bolts.
Further, the H-shaped steel 1 comprises flange plates on two sides and a web plate in the middle, and the threaded longitudinal ribs 3 are welded on the flange plates on the two sides. It is also the threaded longitudinal ribs 3 that are welded to the flange plates on both sides, so the number of the hoop elements 4 does not need to be too large, and the hoop elements can be fitted together.
As a preferred embodiment of this embodiment, the number of the longitudinal threaded ribs 3 is multiple, and the multiple longitudinal threaded ribs 3 are located at the flange corners of the H-shaped steel 1. In particular, a matrix arrangement is formed, and the hoop elements 4 are also threaded longitudinal ribs 3 hooped on the matrix arrangement.
Further, the thread longitudinal ribs 3 are also located in the middle positions of the inner sides of the two sides of the hoop member 4 and are in welded connection with the inner sides of the two sides of the hoop member 4, so that the required bearing capacity of the steel column is further met by adjusting the number of the thread longitudinal ribs 3. Specifically, the threaded longitudinal rib 3 is located on the web cavity side of the H-shaped steel. The advantage is that different reinforcing bars can be configured according to the stress requirement, so that multiple bearing capacities can be provided under the condition that the outer size of the upright post is not changed, and the section specification and the die cost are reduced.
Further, referring to fig. 4, as another installation method of the threaded longitudinal rib 3 and the hoop member 4, the hoop member 4 is welded to the flange of the H-section steel, at this time, the threaded longitudinal rib 3 is located on the inner side of the flange of the H-section steel and welded thereto for facilitating welding, and the threaded longitudinal rib 3 is also welded to the hoop member 4.
Preferably, the hoop 4 is a stirrup.
Preferably, the hoop 4 is a steel wire mesh.
As a preferred embodiment of this embodiment, the H-shaped steel 1 includes a multi-section structural cylinder, the multi-section structural cylinder is connected by joints at the head and the tail, and grouting holes 8 are preset at the joints; when the joint of the node is the node plate 2, the node plate 2 is provided with grouting holes 8, and if necessary, the flange plate is also provided with grouting holes 8 to facilitate lateral grouting; when the flanges are connected, the middle of the flange is generally hollow, so that grouting holes 8 are also formed in the flange plates to facilitate lateral grouting if needed.
Further, the beam 7 is installed on the H-beam 1 by dry connection, i.e., assembly connection. Specifically, set up bracket 6 on H shaped steel 1, bracket 6 and roof beam 7 carry out assembled via hole installation through installation construction bolt 61, bracket 6 expose in thin cladding concrete.
The invention has the beneficial effects that:
the problems of poor weak axis bending resistance and low cross-section torsional rigidity of the H-shaped steel upright are solved;
the compression resistance of the concrete is fully utilized, and the concrete has better economy;
the thin coating concrete 5 solves the problems of fire prevention and corrosion prevention of the steel column, does not need fire protection and paint, and saves the manufacturing cost;
the bearing capacity can be adjusted by adjusting the number and the diameter of the longitudinal steel bars, so that the standardized production is facilitated;
the columns and the beam columns are connected in a dry mode, so that the field grouting amount is reduced;
only a small amount of stirrups are needed, the shearing force is transmitted by means of welding of the longitudinal bars and the steel column flanges and bonding of the longitudinal bar threads and concrete, and studs are not needed to be driven on the stand columns.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. The utility model provides a prefabricated steel and thin cladding concrete combination stand which characterized in that includes:
h-shaped steel;
the threaded longitudinal ribs are arranged along the column height direction of the H-shaped steel and welded on the flange of the H-shaped steel;
the hoop piece is sleeved on the threaded longitudinal rib; and
and (3) thin coating concrete, and prefabricating and coating the H-shaped steel, the threaded longitudinal bar and the hoop member in a factory.
2. The prefabricated steel and thin-coated concrete combined upright post as claimed in claim 1, wherein: the number of H shaped steel is the multistage, and adjacent to it connects through the gusset plate between the H shaped steel.
3. The prefabricated steel and thin-coated concrete combined upright post as claimed in claim 1, wherein: the number of the H-shaped steel is multiple sections, and the adjacent H-shaped steel is connected through flanges.
4. The prefabricated steel and thin-coated concrete combined upright post as claimed in claim 1, wherein: and the H-shaped steel is provided with a bracket connected with the structural beam, and the bracket is exposed out of the thin coating concrete.
5. The prefabricated steel and thin-coated concrete combined upright post as claimed in claim 1, wherein: the number of the thread longitudinal ribs is multiple, and the thread longitudinal ribs are located at the flange corners of the H-shaped steel.
6. The prefabricated steel and thin-coated concrete combined upright post as claimed in claim 5, wherein: the thread longitudinal rib is also positioned on the web plate cavity side of the H-shaped steel.
7. The prefabricated steel and thin-coated concrete combined upright post as claimed in claim 1, wherein: the hoop is a stirrup.
8. The prefabricated steel and thin-coated concrete combined upright post as claimed in claim 1, wherein: the hoop is made of steel wire mesh.
9. The prefabricated steel and thin-coated concrete combined upright post as claimed in claims 2 to 3, wherein: the H-shaped steel is connected in a joint mode from head to tail, and grouting holes are formed in joints of the H-shaped steel.
10. The prefabricated steel and thin-coated concrete combined upright post as claimed in claim 1, wherein: and the hoop part is welded with the flange of the H-shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111238653.XA CN113931377A (en) | 2021-10-25 | 2021-10-25 | Prefabricated steel and thin cladding concrete combined upright post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111238653.XA CN113931377A (en) | 2021-10-25 | 2021-10-25 | Prefabricated steel and thin cladding concrete combined upright post |
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| Publication Number | Publication Date |
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| CN113931377A true CN113931377A (en) | 2022-01-14 |
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| CN202111238653.XA Pending CN113931377A (en) | 2021-10-25 | 2021-10-25 | Prefabricated steel and thin cladding concrete combined upright post |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2074320A (en) * | 1933-03-20 | 1937-03-23 | Bauer Bruno | Combination wrapping |
| CN101851984A (en) * | 2010-06-30 | 2010-10-06 | 哈尔滨工业大学 | A prefabricated steel-concrete composite beam |
| CN204357001U (en) * | 2014-12-22 | 2015-05-27 | 西安建筑科技大学 | A kind of prefabrication and assembly construction profile steel concrete column skeleton |
| CN106703290A (en) * | 2016-12-22 | 2017-05-24 | 华侨大学 | Detachable-assembly type concrete-filled steel tube column and construction method thereof |
| CN107503469A (en) * | 2017-08-29 | 2017-12-22 | 北京工业大学 | A kind of type lowly reinforced external wrapping concrete shaped steel Special-Shaped Columns of L 2 |
| CN111593926A (en) * | 2020-05-20 | 2020-08-28 | 浙江工业大学 | H-beam partially filled concrete composite column-reinforced concrete beam joint and its design method |
| CN216196010U (en) * | 2021-10-25 | 2022-04-05 | 上海泰大建筑科技有限公司 | Prefabricated steel and thin cladding concrete combined upright post |
-
2021
- 2021-10-25 CN CN202111238653.XA patent/CN113931377A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2074320A (en) * | 1933-03-20 | 1937-03-23 | Bauer Bruno | Combination wrapping |
| CN101851984A (en) * | 2010-06-30 | 2010-10-06 | 哈尔滨工业大学 | A prefabricated steel-concrete composite beam |
| CN204357001U (en) * | 2014-12-22 | 2015-05-27 | 西安建筑科技大学 | A kind of prefabrication and assembly construction profile steel concrete column skeleton |
| CN106703290A (en) * | 2016-12-22 | 2017-05-24 | 华侨大学 | Detachable-assembly type concrete-filled steel tube column and construction method thereof |
| CN107503469A (en) * | 2017-08-29 | 2017-12-22 | 北京工业大学 | A kind of type lowly reinforced external wrapping concrete shaped steel Special-Shaped Columns of L 2 |
| CN111593926A (en) * | 2020-05-20 | 2020-08-28 | 浙江工业大学 | H-beam partially filled concrete composite column-reinforced concrete beam joint and its design method |
| CN216196010U (en) * | 2021-10-25 | 2022-04-05 | 上海泰大建筑科技有限公司 | Prefabricated steel and thin cladding concrete combined upright post |
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Application publication date: 20220114 |
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