Novel prefabricated concrete filled steel tubular column structure

Through the precast steel pipe concrete column structure, the precast and high-strength pouring concrete methods are used to solve the problems of long construction cycles and dangerous high-altitude operations of steel pipe concrete columns, and the construction speed is improved and safety is enhanced.

CN222862690UActive Publication Date: 2025-05-13SHZF ARCHITECTURAL DESIGN CO LTD
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Patent Information

Application Number
CN202421323322.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-12
Publication Date
2025-05-13
Estimated Expiration
2034-06-12

AI Technical Summary

Technical Problem

The construction period of existing steel pipe concrete columns is long and there is a risk of high-altitude operation.

Method used

The prefabricated steel pipe concrete column structure is adopted, including several steel pipe columns spliced ​​from top to bottom. The steel pipe column is equipped with upper and lower end partitions and grouting ports. By pre-pouring concrete and filling high-strength concrete at the splicing, the construction speed and safety are improved.

Benefits of technology

The construction cycle is shortened, the construction speed and the safety of high-altitude operations are improved, and the overall strength of the steel pipe concrete column is enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel prefabricated concrete filled steel tubular column structure which comprises a plurality of steel tubular columns spliced from top to bottom, a first pouring hole is formed in a wide side plate of each steel tubular column, an upper end partition plate and a lower end partition plate are arranged in each steel tubular column, a grouting opening, a grout outlet and an exhaust hole are formed in each steel tubular column, and the grouting openings are communicated with grouting pipes embedded in the bottoms of the steel tubular columns. The slurry outlet is communicated with a slurry outlet pipe pre-buried at the bottom of the steel pipe column, and the exhaust hole is communicated with a vent pipe pre-buried at the bottom of the steel pipe column; a joint grouting layer is arranged between the lower-end partition plate of the upper-layer steel pipe column and the upper-end partition plate of the lower-layer steel pipe column, and concrete is poured into the joint grouting layer; transverse partition plates are arranged at the connecting joints of the steel pipe columns and the steel beams, the interval between the transverse partition plates is the height of the steel beams, and second pouring orifices and ventilation holes are formed in the transverse partition plates. And concrete is poured into the steel pipe column. Construction is convenient, the construction speed is greatly increased, the construction period is shortened, and the pouring quality of concrete can be guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of steel column tube concrete columns, in particular to a novel prefabricated steel tube concrete column structure. Background Art

[0002] With the development of science and technology, the continuous improvement of steel structure design and construction technology, more and more steel structures are applied to residential buildings. However, the traditional steel columns are large in size, and there are problems such as "convex columns" and "exposed beams" that occupy building space. In order to effectively solve such problems, narrow flat rectangular steel tube concrete columns are generally used. The short side direction is 150-200mm, and the maximum aspect ratio reaches 4, which effectively expands the building space and realizes flexible and variable indoor space.

[0003] The conventional concrete construction process in steel pipe columns is: measurement and positioning → hoisting the first section of steel pipe columns into place → welding the second section of steel pipe columns to the first section of steel pipe columns → pouring of concrete. The pouring of concrete generally adopts the conduit pouring method or the pumping jacking pouring method. However, due to the small cross-section of the steel pipe column and the need for a certain curing period after concrete pouring, the upper section of the steel pipe column cannot be poured before the lower section of the column reaches the concrete strength, which seriously affects the construction speed of the steel structure. Therefore, solving the concrete pouring is a key factor in the steel structure construction period.

[0004] In summary, the present application aims to study a prefabricated steel tube concrete column in order to increase the construction speed, shorten the construction period, and improve the safety of high-altitude operations. Utility Model Content

[0005] The technical problem to be solved by the present application is that the current steel tube concrete column has a long construction period and there is a danger of high-altitude operation.

[0006] In order to solve the above technical problems, the present application provides a novel prefabricated steel tube concrete column structure, comprising: a plurality of steel tube columns spliced ​​from top to bottom, a first pouring hole is provided on a side plate of the width of the steel tube column, an upper end partition and a lower end partition are provided in the steel tube column, the distance between the upper end partition and the upper end port of the steel tube column is 100mm, and the distance between the lower end partition and the lower end port of the steel tube column is 100mm, and a grouting port, a grouting outlet and an exhaust hole are provided on the steel tube column, and the grouting port is connected to the grouting pipe pre-buried at the bottom of the steel tube column, and the exhaust hole is connected to the grouting pipe pre-buried at the bottom of the steel tube column. The slurry outlet is connected to the slurry outlet pipe embedded in the bottom of the steel pipe column, and the exhaust hole is connected to the air pipe embedded in the bottom of the steel pipe column; a joint grouting layer is provided between the lower end partition of the upper steel pipe column and the upper end partition of the lower steel pipe column, and the joint grouting layer is poured with concrete; a cross partition is provided at the connection node between the steel pipe column and the steel beam, the interval between the cross partitions is the height of the steel beam, and a second casting hole and an air hole are provided on the cross partition; concrete is poured in the steel pipe column, and the concrete strength of the joint grouting layer is higher than that of the concrete in the steel pipe column.

[0007] According to an embodiment of the present application, the first pouring orifice is a circular hole with a diameter of 120 mm.

[0008] According to an embodiment of the present application, the second casting orifice is an elliptical orifice, and the elliptical orifice is coaxially designed with the steel pipe column.

[0009] According to an embodiment of the present application, the diameters of the grouting pipe and the grouting pipe are both 30 mm.

[0010] According to an embodiment of the present application, the exhaust hole is a circular hole with a diameter of 20 mm, and the air permeable hole on the transverse partition is a circular hole with a diameter of 25 mm.

[0011] According to an embodiment of the present application, the joints between the upper steel pipe column and the lower steel pipe column are connected by welding.

[0012] According to an embodiment of the present application, a connecting plate is provided at the connection node between the steel pipe column and the steel beam.

[0013] According to an embodiment of the present application, the steel pipe column is a narrow flat rectangular steel pipe column.

[0014] According to an embodiment of the present application, the steel tube concrete columns are spliced ​​by hoisting.

[0015] According to an embodiment of the present application, the height of the joint grouting layer is 205 mm.

[0016] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0017] 1. The unit steel pipe column used in this application is provided with a casting hole, and the concrete in the steel pipe can be poured in advance before splicing. The pre-cast unit steel pipe column is convenient for construction and the casting quality is easy to ensure. The steel pipe column is connected after pouring, the construction speed is fast, and the construction period is shortened.

[0018] 2. The unit steel pipe column used in this application has pre-buried grouting pipes, grouting pipes and air permeable pipes, which facilitates the construction of grouting materials at the joints of the steel pipe concrete column. After hoisting, the grouting materials used at the joints of the upper and lower steel pipe columns are one level higher than the concrete poured into the steel pipe column, thereby strengthening the strength of the entire steel pipe concrete column. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.

[0020] Figure 1 A structural schematic diagram of a novel prefabricated steel tube concrete column structure exemplified by the present utility model;

[0021] Figure 2This is a schematic diagram of the structure in which the steel pipe column is placed horizontally on the ground in an example of the utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 10. Steel pipe column, 11. First casting hole, 12. Upper partition, 13. Horizontal partition, 14. Air vent, 15. Grouting pipe, 16. Slurry outlet pipe, 17. Lower partition, 20. Joint grouting layer, 30. Steel beam, 31. Connection plate, 131. Second casting hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0025] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the patent application specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the existence of at least one.

[0026] like Figure 1 , Figure 2 As shown, a new type of prefabricated steel tube concrete column structure exemplified by the utility model includes a plurality of steel tube columns 10 spliced ​​from top to bottom, wherein the steel tube columns 10 have been poured with concrete before splicing. Compared with the prior art, the steel tube columns 10 of the present application complete the concrete pouring of the steel tube columns 10 except the splicing parts on the ground. After hoisting, a joint grouting layer 20 is provided at the splicing parts of the upper and lower sections of the steel tube columns 10 to pour higher-grade concrete, thereby ensuring the construction quality and significantly improving the construction speed of the entire project.

[0027] In this embodiment, a new type of prefabricated steel tube concrete column structure includes a plurality of steel tube columns 10 spliced ​​from top to bottom. Specifically, a first casting hole 11 is provided on a wide side plate of the steel tube column 10, and an upper end partition 12 and a lower end partition 17 are provided in the steel tube column 10. The distance between the upper end partition 12 and the upper end port of the steel tube column 10 is 100 mm, and the distance between the lower end partition 17 and the lower end port of the steel tube column 10 is 100 mm. The steel tube column 10 is provided with a grouting port, a grouting outlet and an exhaust hole. The grouting port is connected to a grouting pipe 15 pre-buried at the bottom of the steel tube column 10, the grouting outlet is connected to a grouting pipe 16 pre-buried at the bottom of the steel tube column 10, and the exhaust hole is connected to a vent pipe 14 pre-buried at the bottom of the steel tube column 10. A joint grouting layer 20 is provided between the lower end partition 17 of the upper steel tube column and the upper end partition 12 of the lower steel tube column, and the joint grouting layer 20 is poured with concrete. The steel pipe column 10 is poured with concrete, and the concrete strength of the joint grouting layer 20 is higher than the concrete in the steel pipe column 10 .

[0028] Furthermore, in order to avoid damaging the strength of the concrete in the steel pipe column 10 due to excessive temperature during interface welding, the height of the concrete in the steel pipe column 10 should be at a certain distance from the joint welding point. In the present application, it is preferred that the concrete in the steel pipe column 10 should be poured to about 100 mm away from the joint welding point and then stop, that is, the upper and lower end partitions 17 are 100 mm away from the edge of the steel pipe column. As the space formed between the lower end partition 17 of the upper steel pipe column and the upper end partition 12 of the lower steel pipe column, the height of the joint grouting layer 20 can be 205 mm.

[0029] Furthermore, the first casting opening 11 is a circular hole with a diameter of 120 mm.

[0030] Furthermore, the exhaust hole is a circular hole with a diameter of 20 mm, and the air permeable hole on the transverse partition 13 is a circular hole with a diameter of 25 mm.

[0031] Furthermore, the diameters of the grouting pipe 15 and the grouting pipe 16 are both 30 mm.

[0032] Furthermore, the concrete strength of the joint grouting layer 20 needs to be at least one level higher than the concrete in the steel tube column 10, which can enhance the strength of the entire spliced ​​steel tube concrete column structure.

[0033] In this embodiment, a transverse diaphragm 13 is provided at the connection node between the steel pipe column 10 and the steel beam 30 . The interval between the transverse diaphragms 13 is the height of the steel beam 30 . The transverse diaphragms 13 are provided with a second casting hole 131 and a vent hole.

[0034] Furthermore, the second casting opening 131 is an elliptical opening, and the elliptical opening is coaxially designed with the steel pipe column 10 .

[0035] Furthermore, the joints of the upper steel pipe columns and the lower steel pipe columns are connected by welding. In actual construction, in order to control the welding deformation of the steel columns, the welding joints of the steel column splicing installation nodes are welded by two people and two machines, symmetrically, without stopping the machine when changing people, and welding layer by layer, and the welding is completed in one time.

[0036] Furthermore, a connection plate 31 is provided at the connection node between the steel pipe column 10 and the steel beam 30 .

[0037] Furthermore, the steel pipe column 10 is a narrow flat rectangular steel pipe column.

[0038] Furthermore, the entire steel tube concrete column structure is assembled by hoisting.

[0039] In this embodiment, the construction process of a new type of prefabricated steel tube concrete column structure is as follows: the steel tube concrete column is hoisted after being poured on the ground. After hoisting, the positioning should be immediately corrected and fixed. After the steel tube column 10 is fixed, the next step of welding is carried out. After the welding is completed and the inspection is passed, the grouting material is constructed at the joint. The strength of the grouting material needs to be one level higher than the concrete poured in the steel tube column 10. The grouting material is injected from the grouting port, and the grouting is stopped when the grouting material emerges from the outlet.

[0040] Specifically, after the steel pipe column 10 is fixed, the next step of welding is performed. During welding, the lower section of the steel pipe should be cooled with running water to ensure that its temperature is not too high. The welding requirements are as follows:

[0041] (1) The welding sequence should be consistent with the lifting sequence, and the technical issues of welding itself should be considered. In order to reduce shrinkage deformation and stress, the welding sequence should be balanced and symmetrical.

[0042] (2) In order to control the welding deformation of the steel column, the welding joints of the steel column installation nodes are welded symmetrically by two people and two machines. The machine is not stopped when the person is replaced, and the welding is completed layer by layer in one time.

[0043] In summary, the technical solution of this application has the following beneficial effects:

[0044] 1. The unit steel pipe column used in this application is provided with a casting hole, and the concrete in the steel pipe can be poured in advance before splicing. The pre-cast unit steel pipe column is convenient for construction and the casting quality is easy to ensure. The steel pipe column is connected after pouring, the construction speed is fast, and the construction period is shortened.

[0045] 2. The unit steel pipe column used in this application has pre-buried grouting pipes, grouting pipes and air permeable pipes, which facilitates the construction of grouting materials at the joints of the steel pipe concrete column. After hoisting, the grouting materials used at the joints of the upper and lower steel pipe columns are one level higher than the concrete poured into the steel pipe column, thereby strengthening the strength of the entire steel pipe concrete column.

[0046] The above are merely exemplary embodiments of the present application and are not intended to limit the protection scope of the present application. The protection scope of the present application is determined by the appended claims.

Claims

1. A new type of prefabricated steel tube concrete column structure, characterized in that: include: A plurality of steel pipe columns spliced ​​from top to bottom, a first casting hole is provided on a side plate of the width of the steel pipe column, an upper end partition and a lower end partition are provided inside the steel pipe column, the upper end partition is 100 mm away from the upper end port of the steel pipe column, the lower end partition is 100 mm away from the lower end port of the steel pipe column, a grouting port, a grouting outlet and an exhaust hole are provided on the steel pipe column, the grouting port is connected to the grouting pipe pre-buried at the bottom of the steel pipe column, the grouting outlet is connected to the grouting pipe pre-buried at the bottom of the steel pipe column, and the exhaust hole is connected to the air permeable pipe pre-buried at the bottom of the steel pipe column; Wherein, a joint grouting layer is provided between the lower end diaphragm of the upper steel pipe column and the upper end diaphragm of the lower steel pipe column, and the joint grouting layer is poured with concrete; Wherein, a transverse diaphragm is provided at the connection node between the steel pipe column and the steel beam, the interval between the transverse diaphragms is the height of the steel beam, and the transverse diaphragm is provided with a second casting hole and a vent hole; Wherein, concrete is poured into the steel pipe column, and the concrete grade of the joint grouting layer is higher than the concrete in the steel pipe column.

2. The novel prefabricated steel tube concrete column structure according to claim 1 is characterized in that: The first casting opening is a circular hole with a diameter of 120 mm.

3. The novel prefabricated steel tube concrete column structure according to claim 1 is characterized in that: The second casting opening is an elliptical opening, and the elliptical opening is coaxially designed with the steel pipe column.

4. The novel prefabricated steel tube concrete column structure according to claim 1 is characterized in that: The diameters of the grouting pipe and the grouting pipe are both 30 mm.

5. The novel prefabricated steel tube concrete column structure according to claim 1 is characterized in that: The exhaust hole is a circular hole with a diameter of 20 mm, and the air permeable hole on the transverse partition is a circular hole with a diameter of 25 mm.

6. The novel prefabricated steel tube concrete column structure according to claim 1 is characterized in that: The joints between the upper steel pipe column and the lower steel pipe column are connected by welding.

7. The novel prefabricated steel tube concrete column structure according to claim 1 is characterized in that: A connecting plate is provided at the connecting node between the steel pipe column and the steel beam.

8. The novel prefabricated steel tube concrete column structure according to claim 1 is characterized in that: The steel pipe column is a narrow flat rectangular steel pipe column.

9. The novel prefabricated steel tube concrete column structure according to claim 1 is characterized in that: Steel tube concrete columns are spliced ​​by hoisting.

10. The novel prefabricated steel tube concrete column structure according to claim 1 is characterized in that: The height of the joint grouting layer is 205 mm.