CN111593846A - High-strength thin-wall steel pipe concrete combined column - Google Patents

High-strength thin-wall steel pipe concrete combined column Download PDF

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Publication number
CN111593846A
CN111593846A CN202010571844.7A CN202010571844A CN111593846A CN 111593846 A CN111593846 A CN 111593846A CN 202010571844 A CN202010571844 A CN 202010571844A CN 111593846 A CN111593846 A CN 111593846A
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China
Prior art keywords
steel
concrete
steel pipe
strength
vertical stiffening
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CN202010571844.7A
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Chinese (zh)
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杨峰
耿俊迪
席兆凯
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Ningbo Excellent Building Technology Co ltd
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Ningbo Excellent Building Technology Co ltd
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Priority to CN202010571844.7A priority Critical patent/CN111593846A/en
Publication of CN111593846A publication Critical patent/CN111593846A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/30Columns; Pillars; Struts
    • E04C3/34Columns; 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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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The utility model provides a high-strength thin-wall steel pipe concrete combination column, includes steel panels, brace, vertical stiffening rib and concrete body, characterized by: the steel panel is an L-shaped steel panel or
Figure DDA0002549903320000011
The concrete slab comprises a steel slab, a plurality of steel slabs and a plurality of vertical stiffening ribs, wherein the steel slab is cold-formed C-shaped steel, the steel slabs are connected in pairs to form a rectangular steel pipe, a welding seam gap is reserved at the joint of the steel slabs, the vertical stiffening ribs are welded and connected with the steel slab at the welding seam gap, two ends of each brace are respectively welded and connected with the vertical stiffening ribs, and the concrete body is poured in the rectangular steel pipe. The concrete and the steel pipe column component are combined, the respective mechanical properties can be fully exerted, the steel pipe column component can effectively prevent outward bending, the problem of concrete height-thickness ratio is solved, the rigidity of a splicing part is high, the welding is convenient, a formwork is not required during concrete pouring, the hoisting construction of the precast beam in the construction stage can be met under the condition that the concrete is not poured in the component, and the construction progress is greatly accelerated.

Description

High-strength thin-wall steel pipe concrete combined column
Technical Field
The invention relates to the field of building construction, in particular to a high-strength thin-wall steel pipe concrete combined column form.
Background
The concrete filled steel tube combination column is mainly applied to large-load buildings, has the characteristics of high bearing capacity and the like, is usually welded at corners to form steel tubes by four steel plates, and has the advantages of large thickness of the steel plates, large steel consumption, heavy steel members and high hoisting difficulty in order to meet the requirements on strength and stability of the steel plates. The existing patent publication (patent number: 2009102205787) splices a rectangular steel pipe column component by adopting ribbed steel plates welded in the middle, but the ribbed steel plates are formed by bending by a sheet metal process, the bending angle of the spliced part is large, when the thickness is slightly large, the bending is difficult, and the pulling pieces penetrate through the outer surface of the steel pipe to be welded, so that the welding workload is increased, the automatic welding difficulty is large, and the longitudinal tensile strength of the welded steel plates is low. A high-strength thin-wall steel pipe concrete combined column with good section mechanical property, convenient welding and large rigidity at the splicing part is not reported.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provide the high-strength thin-wall steel pipe concrete combined column which has good section mechanical property, is convenient to weld and has high rigidity at the splicing part.
The high-strength thin-wall steel pipe concrete combined column provided by the invention comprises steel panels, brace rods, vertical stiffening ribs and a concrete body, wherein the steel panels are L-shaped steel panels or
Figure BDA0002549903300000011
The concrete slab comprises a steel slab, a plurality of steel slabs and a plurality of vertical stiffening ribs, wherein the steel slab is cold-formed C-shaped steel, the steel slabs are connected in pairs to form a rectangular steel pipe, a welding seam gap is reserved at the joint of the steel slabs, the vertical stiffening ribs are welded and connected with the steel slab at the welding seam gap, two ends of each brace are respectively welded and connected with the vertical stiffening ribs, and the concrete body is poured in the rectangular steel pipe.
The high-strength thin-wall steel pipe concrete combined column provided by the invention also has the following accessory technical characteristics:
the above-mentioned
Figure BDA0002549903300000012
The shape steel panel is equipped with the plug welding through-hole of interval certain distance arrangement along vertically, plug welding through-hole inboard welding has ally oneself with vertical stiffening rib.
And a certain number of tie nails or wavy reinforcing steel bars are longitudinally welded on the inner side of the steel panel.
And widened steel plates can be added between the steel panels to form a large-section rectangular steel pipe.
The coolingThe shape of the bent C-shaped steel is
Figure BDA0002549903300000013
Or
Figure BDA0002549903300000014
The braces are steel bars or angle bars and are arranged at certain intervals along the longitudinal direction of the rectangular steel pipe.
The steel panel is a high-strength steel plate with the strength of more than Q345.
The concrete body is high-strength concrete with the weight of above C50.
Compared with the prior art, the high-strength thin-wall steel pipe concrete combined column provided by the invention has the following advantages:
1. the concrete and the thin-wall steel pipe components are combined, the respective mechanical properties are fully exerted, the thickness of the steel plate is small, and the steel consumption is greatly saved.
2. The thin-walled steel plate is convenient to weld after being spliced, and the splicing part and the vertical stiffening rib can be automatically welded.
3. The bracing piece is connected with the thin-wall steel pipe, so that the lateral pressure requirement is met in the construction stage, and the concrete constraint is facilitated in the use stage.
4. The vertical stiffening ribs are used as a panel welding lining plate and a vertical compression (bending) rod piece, and meanwhile, the vertical direction of the brace can be reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a welded L-shaped steel panel composite column of the present invention.
FIG. 2 shows the present invention
Figure BDA0002549903300000021
The sectional view of the combined column after the welding of the steel-shaped panels.
FIG. 3 is a schematic view of an L-shaped steel panel of the present invention.
FIG. 4 shows the present invention
Figure BDA0002549903300000022
Schematic drawing of a steel-shaped panel.
FIG. 5 shows the present invention
Figure BDA0002549903300000023
The effect diagram of the combined column formed by the steel plates.
FIG. 6 shows the present invention
Figure BDA0002549903300000024
The cross section of the combined column formed by the vertical stiffening ribs and the steel panels is schematic.
FIG. 7 is a schematic cross-sectional view of a steel panel according to the present invention after joining a widened steel plate.
FIG. 8 is a cross-sectional view of the composite post with a drawknot nail welded thereto according to the present invention.
Fig. 9 is a schematic cross-sectional view of the composite column welded with the corrugated reinforcing steel bars according to the present invention.
Fig. 10 is a schematic view of a wavy reinforcing bar according to the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1 to 10, in the embodiment of the present invention, the high-strength thin-wall steel pipe concrete composite column comprises a steel panel 1, a brace 2, a vertical stiffening rib 3 and a concrete body 4, wherein the steel panel 1 is an L-shaped steel panel 11 or "
Figure 1
The concrete slab comprises a steel slab 12 and vertical stiffening ribs, wherein the vertical stiffening ribs are cold-formed C-shaped steel, a plurality of steel slabs 1 are connected in pairs to form a rectangular steel pipe, welding seam gaps 13 are reserved at the joints of the steel slabs 1, the vertical stiffening ribs 3 are welded and connected with the steel slabs 1 in the welding seam gaps 13, two ends of each brace 2 are respectively welded and connected with the vertical stiffening ribs 3, and the concrete body 4 is poured in the rectangular steel pipe. The steel panel 1 is welded and connected with the vertical stiffening ribs 3 arranged on the inner wall through the reserved welding seam gaps 13The steel plate is convenient to connect, the steel plate is easy to process, the mechanical property of the section of the member is good, the concrete constraint weakening phenomenon does not exist, the bracing pieces 2 are used for connecting the members into a whole, the structural stability is good, the steel pipe is prevented from being bent outside, the concrete and the steel pipe member are combined, the respective mechanical property is fully exerted, and the material cost is saved.
Referring to fig. 2, 4 to 5, in an embodiment of the present invention, the high-strength thin-wall steel pipe concrete composite column is described
Figure BDA0002549903300000026
The shaped steel panel 12 is longitudinally provided with plug welding through holes 121 which are arranged at certain intervals, and the vertical stiffening ribs 3 are welded on the inner sides of the plug welding through holes 121. The plug welding through holes 121 enable the vertical stiffening ribs 3 arranged on the inner wall and the steel panel 1 to be welded into a whole, and the constraint performance to concrete is enhanced.
Referring to fig. 7 to 10, in an embodiment of the high-strength thin-wall steel tube concrete composite column according to the present invention, a certain number of tie nails 5 or wavy steel bars 6 are welded to the inner side of the steel face plate 11 along the longitudinal direction, a widened steel plate 7 may be added between the steel face plates 1 to form a large-section rectangular steel tube, and the cold-formed C-shaped steel is in the shape of a large-section rectangular steel tube
Figure BDA0002549903300000031
Or
Figure BDA0002549903300000032
The steel panel 1 is a high-strength steel plate with the strength of more than Q345, and the concrete body 4 is high-strength concrete with the strength of more than C50. The integrity of the steel pipe column and the inner concrete is effectively improved by the tie nails 5 and the reinforcing steel bars 6, the cold-formed C-shaped steel is convenient to process and easy to bend at various angles, the connection mode of the brace 2 meeting different requirements is met, the section with the widened steel plate 7 can be used for the column with a larger section, and the thickness of the steel plate is effectively reduced by adopting a high-strength steel plate.
Referring to fig. 5, in the embodiment of the high-strength thin-wall steel pipe concrete composite column provided by the invention, the bracing pieces 2 are steel bars or angle irons and are uniformly arranged at intervals along the longitudinal direction of the steel pipe. The brace 2 solves the problem of concrete height-thickness ratio in the use stage, has good constraint performance to the concrete, can avoid formwork support and split bolt fixation when pouring the concrete, and greatly improves the construction efficiency.
In the present invention, all "a certain distance" means a length necessary to satisfy design requirements, that is, a length necessary to be suitable for connection and strength requirements, which is clear to those skilled in the art and may be set as needed.

Claims (8)

1. The utility model provides a high-strength thin-wall steel pipe concrete combination column, includes steel panels, brace, vertical stiffening rib and concrete body, characterized by: the steel panel is an L-shaped steel panel or
Figure FDA0002549903290000011
The concrete slab comprises a steel slab, a plurality of steel slabs and a plurality of vertical stiffening ribs, wherein the steel slab is cold-formed C-shaped steel, the steel slabs are connected in pairs to form a rectangular steel pipe, a welding seam gap is reserved at the joint of the steel slabs, the vertical stiffening ribs are welded and connected with the steel slab at the welding seam gap, two ends of each brace are respectively welded and connected with the vertical stiffening ribs, and the concrete body is poured in the rectangular steel pipe.
2. The high-strength thin-wall steel pipe concrete combined column as claimed in claim 1, wherein the high-strength thin-wall steel pipe concrete combined column is characterized in that
Figure FDA0002549903290000012
The shape steel panel is equipped with the plug welding through-hole of certain distance arrangement along vertically, the welding downthehole side welding has ally oneself with vertical stiffening rib.
3. A high-strength thin-wall steel pipe concrete composite column as claimed in claim 1, wherein a certain number of tie nails or wavy steel bars are welded longitudinally to the inner side of the steel face plate.
4. A high-strength thin-wall steel pipe concrete combined column as claimed in claim 1, wherein a widened steel plate can be added between the steel face plates to form a large-section rectangular steel pipe.
5. A high-strength thin-wall steel pipe concrete combined column as claimed in claim 1, wherein the shape of the cold-formed C-shaped steel is
Figure FDA0002549903290000013
Or
Figure FDA0002549903290000014
6. The high-strength thin-wall steel pipe concrete composite column as claimed in claim 1, wherein the bracing pieces are steel bars or angle bars arranged at a certain distance along the longitudinal direction of the rectangular steel pipe.
7. The high-strength thin-wall steel pipe concrete composite column as claimed in claim 1, wherein the steel face plate is a high-strength steel plate with a strength of above Q345.
8. The high-strength thin-wall steel tube concrete composite column as claimed in claim 1, wherein the concrete body is high-strength concrete with a strength of above C50.
CN202010571844.7A 2020-06-22 2020-06-22 High-strength thin-wall steel pipe concrete combined column Pending CN111593846A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023061124A1 (en) * 2021-10-15 2023-04-20 孖垚建筑科技(上海)有限公司 Housing module and housing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1975061A (en) * 2006-12-25 2007-06-06 哈尔滨工业大学 Steel reinforcement square, rectangular or polygonal steel pipe concrete column
CN101748860A (en) * 2009-12-09 2010-06-23 中国建筑东北设计研究院有限公司 Concrete post provided with counter pulling sheet profile steel welding rectangular steel tube
JP2012140824A (en) * 2011-01-05 2012-07-26 Takenaka Komuten Co Ltd Concrete filled steel pipe column
CN105239724A (en) * 2015-11-09 2016-01-13 上海建筑设计研究院有限公司 Giant rectangular-section concrete filled steel tubular column
CN106906952A (en) * 2017-04-20 2017-06-30 重庆大学 A kind of band oblique pull rib rectangular steel pipe reinforced column and its construction method
CN212613381U (en) * 2020-06-22 2021-02-26 宁波优造建筑科技有限公司 High-strength thin-wall steel pipe concrete combined column

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1975061A (en) * 2006-12-25 2007-06-06 哈尔滨工业大学 Steel reinforcement square, rectangular or polygonal steel pipe concrete column
CN101748860A (en) * 2009-12-09 2010-06-23 中国建筑东北设计研究院有限公司 Concrete post provided with counter pulling sheet profile steel welding rectangular steel tube
JP2012140824A (en) * 2011-01-05 2012-07-26 Takenaka Komuten Co Ltd Concrete filled steel pipe column
CN105239724A (en) * 2015-11-09 2016-01-13 上海建筑设计研究院有限公司 Giant rectangular-section concrete filled steel tubular column
CN106906952A (en) * 2017-04-20 2017-06-30 重庆大学 A kind of band oblique pull rib rectangular steel pipe reinforced column and its construction method
CN212613381U (en) * 2020-06-22 2021-02-26 宁波优造建筑科技有限公司 High-strength thin-wall steel pipe concrete combined column

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023061124A1 (en) * 2021-10-15 2023-04-20 孖垚建筑科技(上海)有限公司 Housing module and housing

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