CN107060214A - Rectangular steel-tube concrete column and its construction method - Google Patents
Rectangular steel-tube concrete column and its construction method Download PDFInfo
- Publication number
- CN107060214A CN107060214A CN201710353429.2A CN201710353429A CN107060214A CN 107060214 A CN107060214 A CN 107060214A CN 201710353429 A CN201710353429 A CN 201710353429A CN 107060214 A CN107060214 A CN 107060214A
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- China
- Prior art keywords
- rectangular
- concrete column
- short side
- rectangular washer
- washer
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a kind of rectangular steel-tube concrete column and its construction method.The present invention is directed to the rectangular steel-tube concrete column commonly used in engineering and improved, increase Pre-stressed pole in concrete filled rectangular steel tube members, rectangular steel-tube concrete column is constrained using using Pre-stressed pole, rectangular washer is extruded by the prestressing force of Pre-stressed pole, so that rectangular washer extrudes steel pipe walls, and then extruded concrete post, to improve steel pipe walls local buckling performance, this structure can preferably improve the steel pipe walls local buckling ability of rectangular steel-tube concrete column, and indices are greatly improved.The present invention is simple in construction, and with low cost, using effect is good.
Description
Technical field
The present invention relates to technical field of buildings, especially a kind of rectangular steel-tube concrete column and its construction method.
Background technology
With the development of skyscraper, concrete-filled rectangular steel tube is used by increasing building structure, while also gradually
Some shortcomings are shown, it is main as follows：Constraint of the rectangular steel pipe to concrete is not so good as round steel pipe；In order to prevent steel pipe wall pressure
Bend, to control flakiness ratio, cause steel to waste, while also limit application of the high strength steel in concrete filled steel tube.
In order to improve steel pipe walls local buckling ability, the construction measure Constrained pull bar taken, by the drawing of binding bar
The stability of knot effect enhancing steel pipe walls；Horizontal pull-tab is set, and operation principle is identical with binding bar；Corner angle brace is set,
Corner angle brace provides two restraining forces to each face of steel pipe, limits local buckling.
, it is necessary to find a kind of new construction measure to improve rectangular steel-tube concrete column the need in order to meet engineering construction
Steel pipe walls local buckling ability.
The content of the invention
The purpose of the present invention is：There is provided a kind of rectangular steel-tube concrete column and its construction method, it can effectively improve steel
Tube wall local buckling performance.
What the present invention was realized in：Rectangular steel-tube concrete column, including rectangular steel pipe, concrete column, in rectangular steel pipe
Middle part be provided with criss-cross Pre-stressed pole, the termination of Pre-stressed pole is connected with rectangular washer, and rectangular washer is fitted in rectangle steel
On the outside of pipe；Rectangular washer includes being fitted in rectangle steel pipe range rectangular washer and to be fitted in rectangular steel pipe short when upper long
Short side rectangular washer on side；Wherein, the length of side on the long side in the cross section of concrete column is respectively a, and the cross section of concrete column is long
The length of side on side is respectively b, and the wall thickness of rectangular steel pipe is c；Pre-stressed pole diameter is not less than 2.5c；Rectangular washer thickness is not less than
3c, the short side of long side rectangular washer is not less than a/4, the long short side in rectangular washer parallel to the cross section of concrete column it is long while,
It is long while rectangular washer it is long while be not less than 0.3a, it is long while rectangular washer it is long while and concrete column cross section it is perpendicular；Short side
The short side of rectangular washer is not less than b/5, and the short side of short side rectangular washer is parallel to the cross section short side of concrete column, short side rectangle
The long side of pad is not less than 0.24b, short side rectangular washer it is perpendicular with the cross section of concrete column, in long side rectangular washer
The heart is overlapped with the long side midpoint of rectangular steel pipe, and the center of short side rectangular washer is overlapped with the short side midpoint of rectangular steel pipe, long side square
Spacing of the shape pad in pillar height direction is not more than a, and spacing of the short side rectangular washer in pillar height direction is not more than b.
The construction method of rectangular steel-tube concrete column, first stays and is used on through the hole of Pre-stressed pole in advance on rectangular steel pipe
Hole, Pre-stressed pole is inserted in hole, casting concrete, when waiting the concrete to reach 28 days intensity, stretch-draw prestressing force bar, in advance should
Area and 1/2nd of concrete column intensity product of the prestressing force that power bar applies not less than the rectangular washer that its termination is connected.
Compared with prior art, the present invention is directed to the rectangular steel-tube concrete column commonly used in engineering and improved,
Increase Pre-stressed pole in concrete filled rectangular steel tube members, constrain rectangular steel-tube concrete column using using Pre-stressed pole, pass through Pre-stressed pole
Prestressing force extruding rectangular washer so that rectangular washer extrudes steel pipe walls, and then extruded concrete post, to improve steel pipe walls office
Portion's flexural property, this structure can preferably improve the steel pipe walls local buckling ability of rectangular steel-tube concrete column, and indices have
Greatly improve.The present invention is simple in construction, and with low cost, using effect is good.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Embodiment
Embodiments of the invention：Rectangular steel-tube concrete column, including rectangular steel pipe 1, concrete column 4, in rectangular steel pipe 1
Middle part is provided with criss-cross Pre-stressed pole 3, and the termination of Pre-stressed pole 3 is connected with rectangular washer, and rectangular washer is fitted in rectangle steel
On the outside of pipe 1；Rectangular washer includes being fitted in the long rectangular washer 2 when upper long of rectangular steel pipe 1 and is fitted in rectangle steel
Short side rectangular washer 5 on the short side of pipe 1；Wherein, the length of side on the long side in the cross section of concrete column 4 is respectively a, concrete column 4
The length of side on the long side in cross section is respectively b, and the wall thickness of rectangular steel pipe 1 is c；The diameter of Pre-stressed pole 3 is not less than 2.5c；Rectangular washer is thick
Degree is not less than 3c, and the short side of long side rectangular washer 2 is not less than a/4, and the short side of long side rectangular washer 2 is parallel to concrete column 4
The long side in cross section, it is long while rectangular washer 2 it is long while be not less than 0.3a, it is long while rectangular washer 2 it is long while it is transversal with concrete column 4
Face is perpendicular；The short side of short side rectangular washer 5 is not less than b/5, the horizontal stroke of the short side of short side rectangular washer 5 parallel to concrete column 4
Section short side, the long side of short side rectangular washer 5 is not less than 0.24b, the cross section phase with concrete column 4 of short side rectangular washer 5
Vertically, the long center in rectangular washer 2 and rectangular steel pipe 1 it is long while midpoint overlap, the center of short side rectangular washer 5 and rectangle steel
The short side midpoint of pipe 1 is overlapped, and spacing of the long side rectangular washer 2 in pillar height direction is not more than a, and short side rectangular washer 5 is in pillar height side
To spacing be not more than b.
The construction method of rectangular steel-tube concrete column, first stays and is used on through Pre-stressed pole 3 in advance on rectangular steel pipe 1
Hole, Pre-stressed pole 3 is inserted in hole, casting concrete, and when waiting the concrete to reach 28 days intensity, stretch-draw prestressing force bar 3 is right
Area and the two of concrete column semi-finals degree product of the prestressing force that Pre-stressed pole 3 applies not less than the rectangular washer that its termination is connected
/ mono-.
Table 1
According to table 1 as can be seen that the steel core concrete column indices of Pre-stressed pole are provided with embodiment to be had significantly
Improve.
Claims (3)
1. a kind of rectangular steel-tube concrete column, including rectangular steel pipe (1), concrete column (4), it is characterised in that：In rectangular steel pipe
(1) middle part is provided with criss-cross Pre-stressed pole (3), and the termination of Pre-stressed pole (3) is connected with rectangular washer, rectangular washer laminating
On the outside of rectangular steel pipe (1)；Rectangular washer include being fitted in the long rectangular washer (2) when upper long of rectangular steel pipe (1) with
And it is fitted in the short side rectangular washer (5) on rectangular steel pipe (1) short side；Wherein, the length of side on the long side in cross section of concrete column (4)
Respectively a, the length of side on the long side in cross section of concrete column (4) is respectively b, and the wall thickness of rectangular steel pipe (1) is c；Pre-stressed pole (3)
Diameter is not less than 2.5c；Rectangular washer thickness is not less than 3c, and the short side of long side rectangular washer (2) is not less than a/4, long side rectangular pad
The short side of piece (2) parallel to concrete column (4) the long side in cross section, it is long while rectangular washer (2) it is long while be not less than 0.3a, long side
The long side of rectangular washer (2) and the cross section of concrete column (4) are perpendicular；The short side of short side rectangular washer (5) is not less than b/5,
The short side of short side rectangular washer (5) is parallel to the cross section short side of concrete column (4), and the long side of short side rectangular washer (5) is small
In 0.24b, short side rectangular washer (5) it is perpendicular with the cross section of concrete column (4), the center of long side rectangular washer (2) with
The long side midpoint of rectangular steel pipe (1) is overlapped, and the center of short side rectangular washer (5) is overlapped with the short side midpoint of rectangular steel pipe (1), long
Spacing of the side rectangular washer (2) in pillar height direction is not more than a, and spacing of the short side rectangular washer (5) in pillar height direction is not more than b.
2. a kind of construction method of rectangular steel-tube concrete column as described in claim requirement 1, it is characterised in that：In rectangle steel
The hole being used on through Pre-stressed pole (3) is first stayed in advance on pipe (1), and Pre-stressed pole (3) is inserted in hole, coagulation is poured
Soil, when waiting the concrete to reach 28 days intensity, stretch-draw prestressing force bar (3) is not less than its end to the prestressing force that Pre-stressed pole (3) applies
The area of the rectangular washer of head connection and 1/2nd of concrete column (4) intensity product.
3. the construction method according to claim requirement 2, it is characterised in that：The intensity of described rectangular washer is not less than
600MPa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710353429.2A CN107060214A (en) | 2017-05-18 | 2017-05-18 | Rectangular steel-tube concrete column and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710353429.2A CN107060214A (en) | 2017-05-18 | 2017-05-18 | Rectangular steel-tube concrete column and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107060214A true CN107060214A (en) | 2017-08-18 |
Family
ID=59610964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710353429.2A Pending CN107060214A (en) | 2017-05-18 | 2017-05-18 | Rectangular steel-tube concrete column and its construction method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107060214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930748A (en) * | 2019-03-22 | 2019-06-25 | 天津大学 | A kind of concrete-filled steel square tubular column using prestress wire |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE6604507U (en) * | 1966-02-26 | 1970-01-15 | Trent Concrete Ltd Colwick Ind | PRE-FABRICATED ELEMENTS FOR A REINFORCED CONCRETE SKELETON |
| CN86101986A (en) * | 1985-03-05 | 1986-09-03 | 清水建设株式会社 | Concrete-filled steel tubular column and manufacture method thereof |
| JPH1150595A (en) * | 1997-08-05 | 1999-02-23 | Kurosawa Kensetsu Kk | Cage body |
| US6123485A (en) * | 1998-02-03 | 2000-09-26 | University Of Central Florida | Pre-stressed FRP-concrete composite structural members |
| JP2001262774A (en) * | 2000-03-21 | 2001-09-26 | Sumitomo Metal Ind Ltd | Steel concrete composite structural member |
| CN1447873A (en) * | 2000-07-12 | 2003-10-08 | 阿洛伊斯·沃本 | Tower Made of prestressed concrete prefabricated assembly units |
| CN101451387A (en) * | 2008-12-29 | 2009-06-10 | 西安建筑科技大学 | Prestressed reinforcement large span stone component |
| CN101982629A (en) * | 2010-10-18 | 2011-03-02 | 清华大学 | Assembly-type self-compaction steel tube and concrete composite structure |
| CN206800794U (en) * | 2017-05-18 | 2017-12-26 | 贵州中建伟业建设工程有限责任公司 | Rectangular steel-tube concrete column |
-
2017
- 2017-05-18 CN CN201710353429.2A patent/CN107060214A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE6604507U (en) * | 1966-02-26 | 1970-01-15 | Trent Concrete Ltd Colwick Ind | PRE-FABRICATED ELEMENTS FOR A REINFORCED CONCRETE SKELETON |
| CN86101986A (en) * | 1985-03-05 | 1986-09-03 | 清水建设株式会社 | Concrete-filled steel tubular column and manufacture method thereof |
| JPH1150595A (en) * | 1997-08-05 | 1999-02-23 | Kurosawa Kensetsu Kk | Cage body |
| US6123485A (en) * | 1998-02-03 | 2000-09-26 | University Of Central Florida | Pre-stressed FRP-concrete composite structural members |
| JP2001262774A (en) * | 2000-03-21 | 2001-09-26 | Sumitomo Metal Ind Ltd | Steel concrete composite structural member |
| CN1447873A (en) * | 2000-07-12 | 2003-10-08 | 阿洛伊斯·沃本 | Tower Made of prestressed concrete prefabricated assembly units |
| CN101451387A (en) * | 2008-12-29 | 2009-06-10 | 西安建筑科技大学 | Prestressed reinforcement large span stone component |
| CN101982629A (en) * | 2010-10-18 | 2011-03-02 | 清华大学 | Assembly-type self-compaction steel tube and concrete composite structure |
| CN206800794U (en) * | 2017-05-18 | 2017-12-26 | 贵州中建伟业建设工程有限责任公司 | Rectangular steel-tube concrete column |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930748A (en) * | 2019-03-22 | 2019-06-25 | 天津大学 | A kind of concrete-filled steel square tubular column using prestress wire |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |