CN110306727A - Precast prestressed steel core concrete column and construction method - Google Patents
Precast prestressed steel core concrete column and construction method Download PDFInfo
- Publication number
- CN110306727A CN110306727A CN201910497576.6A CN201910497576A CN110306727A CN 110306727 A CN110306727 A CN 110306727A CN 201910497576 A CN201910497576 A CN 201910497576A CN 110306727 A CN110306727 A CN 110306727A
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- steel pipe
- concrete
- outer steel
- locating device
- concrete column
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
A kind of precast prestressed steel core concrete column and construction method.By outer steel pipe, upper steel pipe, lower steel pipe and coagulation local soil type at；Outer steel pipe, upper steel pipe and lower steel pipe are all round steel pipe；Upper steel pipe is located at the top of outer steel pipe, and outer steel pipe is stretched out in one end, and lower steel pipe is located at the lower part of outer steel pipe, does not stretch out outer steel pipe；Outer steel pipe and upper steel duct fill concrete, lower steel duct do not have concrete.In construction, concrete is formed to the side surface dabbing of cylinder, top and bottom polish, and heat outer steel pipe, and outer steel pipe is covered on the cylinder that concrete is formed, and outer steel pipe cooling meat forms prestressed steel tube concrete columns.The present invention is able to solve load-bearing initial stage steel pipe to the restricted problem of concrete, improves the stress performance of service stage steel core concrete column, and is able to achieve assembly construction.
Description
Technical field
The present invention relates to the Prefabricated concrete-filled steel tube column fields in assembled composite structure.
Background technique
The stress performance of steel core concrete column is good, and under the constraint of outer steel pipe, compression strength improves concrete, and outer steel pipe exists
Under the support of inner concrete, it is not easy to buckling failure occur.But outer steel pipe to the constraint of inner concrete be passively,
Load-bearing initial stage, the Poisson's ratios of steel are greater than the Poisson's ratio of concrete, steel pipe to concrete without effect of contraction, when the Poisson of concrete
When Poisson's ratio than being greater than steel, the transversely deforming of concrete is greater than the transversely deforming of steel pipe, transverse direction of the concrete by steel pipe
Constraint, concrete are three dimension stress state, and intensity improves, so this effect of contraction does not work at load initial stage, in steel pipe
Concrete column approaches competence exertion maximum effect when destroying.Currently, steel reinforced concrete assembling structure obtains wide application, dress
It is not applied also with formula steel core concrete column.Therefore, it is necessary to a kind of service stages can play the prefabricated pre- of outer steel pipe effect of contraction
Stress steel core concrete column and corresponding construction method.
Summary of the invention
In order to solve steel pipe to the initial stage restricted problem of inner concrete, and realize fabricated construction, the present invention discloses one
The precast prestressed steel core concrete column of kind and construction method, have many advantages, such as that stress performance is good, easy for construction.
The technical solution of precast prestressed steel core concrete column of the invention is: by outer steel pipe, upper steel pipe, lower steel pipe and mixing
Solidifying local soil type at；Outer steel pipe, upper steel pipe and lower steel pipe are all round steel pipe, and the axis of outer steel pipe, upper steel pipe and lower steel pipe is overlapped；Upper steel
Pipe is located at the top of outer steel pipe, and outer steel pipe is stretched out in one end, and the length for stretching out outer steel pipe is not less than the half of outer steel pipe internal diameter, protrudes into
The length of outer steel pipe is equal to extension elongation；Lower steel pipe is located at the lower part of outer steel pipe, does not stretch out outer steel pipe, and the internal diameter of lower steel pipe is equal to
The length of the outer diameter of upper steel pipe, lower steel pipe is 1mm bigger than the extension elongation of upper steel pipe；Outer steel pipe and upper steel duct fill coagulation
Soil, lower steel duct do not have concrete；The outer diameter and wall thickness of upper steel pipe are determined according to design, and outer diameter is not more than outer steel pipe internal diameter
Half；The wall thickness of lower steel pipe is determined according to design, can bear the radial pressure in prestress stage.
For the outer steel pipe before not constructing, internal diameter is less than the diameter that concrete forms cylinder, keeps outer steel pipe swollen by heating
It is swollen, it can cover on the cylinder that concrete is formed, outer steel pipe cooling meat generates compressive pre-stress, compressive pre-stress to concrete
Primarily radial compression also generates certain axial compression stress.The outer surface of the concrete carries out dabbing processing, increase with
The coefficient of friction of outer steel pipe enables outer steel pipe preferably to work together with concrete.
The construction method of precast prestressed steel core concrete column of the invention is: by lower steel pipe socket lower locating device protrusion
Portion makes the top surface of lower steel pipe and the either flush of lower locating device top plate, is connected with steel form and lower locating device, by upper positioning
Device is fixed by bolts on steel form, upper steel pipe is penetrated into the casing of upper locator, is fixed with fastening screw；In steel form
With the inside casting concrete of upper steel pipe；It tears steel form, upper locator and lower locating device open, concrete is formed to the side surface of cylinder
The top and bottom that concrete forms cylinder are polished, the concrete of upper steel pipe top are polished by dabbing；The both ends of outer steel pipe add
Work groove heats outer steel pipe, and outer steel pipe is covered on the cylinder that concrete is formed.
The upper locator is made of casing, fastening screw and bracket, and casing is round steel pipe, and casing inner diameter is equal to upper steel pipe
Outer diameter, fastening screw is mounted in the screw hole on casing, and bracket is integrally welded with casing, there is bolt hole on bracket, props up
Frame bottom is concordant with sleeve bottom.The lower locating device is made of bottom plate, top plate and pillar, and the diameter of top plate is equal to lower steel pipe
To be round, the center of circle of bottom plate and top plate is located on same perpendicular for internal diameter, bottom plate and top plate, there is bolt hole, Zhi Zhugao on bottom plate
Degree plus top plate thickness are equal to the length of lower steel pipe, and bottom plate, top plate and pillar are integrally welded.
When precast prestressed steel core concrete column joint connection in site of the invention, applied on the concrete surface at the top of lower floor's post
Grouting material is smeared, smears grouting material in the upper steel pipe top of lower floor's post, by the lower steel pipe socket of upper strata post on the upper steel pipe of lower floor's post,
It is welded between lower floor's post and the outer steel pipe of upper strata post, forms butt weld.The length of lower steel pipe is bigger than the extension elongation of upper steel pipe
1mm is to be filled and led up gap by grouting material in order to avoid component fabrication error bring assembles inconvenience.
Precast prestressed steel core concrete column simple structure of the invention applies compressive pre-stress to inner concrete in advance,
The compression strength for improving concrete, the effect of contraction of steel pipe can be played at load-bearing initial stage, stress performance is good.By upper steel pipe and
Lower steel pipe can connect two precast prestressed steel core concrete columns, can Transfer of Shear well.The construction method
It can be realized prestressed application.The present invention is able to solve load-bearing initial stage steel pipe to the restricted problem of concrete, improves and uses rank
The stress performance of section steel core concrete column, and it is able to achieve assembly construction.
Detailed description of the invention
The following further describes the present invention with reference to the drawings.
Fig. 1 is the cross-sectional view of precast prestressed steel core concrete column of the invention.
Fig. 2 is the axonometric drawing of precast prestressed steel core concrete column of the invention.
Fig. 3 is the work progress figure of precast prestressed steel core concrete column of the invention.
Fig. 4 is the cross-sectional view and top view of upper locator of the invention.
Fig. 5 is the cross-sectional view and top view of lower locating device of the invention.
Fig. 6 is the assembled in situ schematic diagram of precast prestressed steel core concrete column of the invention.
In figure: 1-outer steel pipe, 2-upper steel pipes, 3-lower steel pipes, 4-concrete, 5-steel forms, 6-upper locators,
7-lower locating devices, 8-bolts, 9-bolts hole, 10-grouting materials, 11-butt welds, 61-casings, 62-fastening screws,
63-brackets, 71-bottom plates, 72-top plates, 73-pillars.
Specific embodiment
As shown in Figs. 1-2, a kind of precast prestressed steel core concrete column, by outer steel pipe (1), upper steel pipe (2), lower steel pipe
(3) it is formed with concrete (4)；Outer steel pipe (1), upper steel pipe (2) and lower steel pipe (3) are all round steel pipe, outer steel pipe (1), upper steel pipe
(2) it is overlapped with the axis of lower steel pipe (3)；Upper steel pipe (2) is located at the top of outer steel pipe (1), and outer steel pipe (1) is stretched out in one end, stretches out
The length of outer steel pipe (1) is not less than the half of outer steel pipe (1) internal diameter, and the length that upper steel pipe (2) protrudes into outer steel pipe (1), which is equal to, stretches out
Length；Lower steel pipe (3) is located at the lower part of outer steel pipe (1), does not stretch out outer steel pipe (1), and the internal diameter of lower steel pipe (3) is equal to upper steel pipe
(2) length of outer diameter, lower steel pipe (3) is 1mm bigger than the extension elongation of upper steel pipe (2)；Outer steel pipe (1) and upper steel pipe (2) are internal
Fill concrete (4), lower steel pipe (3) is internal not to have concrete (4)；The outer diameter and wall thickness of upper steel pipe (2) according to design determine, and
Outer diameter is not more than the half of outer steel pipe (1) internal diameter；The wall thickness of lower steel pipe (3) is determined according to design, can bear the prestress stage
Radial pressure.
Fig. 3 be precast prestressed steel core concrete column of the invention work progress figure, entire work progress be divided into a, b,
C, tetra- steps of d, specific work progress are as follows: construction procedure a as shown in Fig. 3 (a) covers lower steel pipe (3) in lower locating device
(7) protruding portion makes the top surface of lower steel pipe (3) and the either flush of lower locating device (7) top plate (72), connects steel with bolt (8)
Upper locator (6) is fixed on steel form (5) with bolt (8), upper steel pipe (2) is penetrated by template (5) and lower locating device (7)
It is fixed with fastening screw (62) into the casing (61) of upper locator (6)；Construction procedure b, as shown in Figure 3 (b), in steel form
(5) and the inside casting concrete (4) of upper steel pipe (2)；Construction procedure c tears steel form (5), upper locator open as shown in Figure 3 (c)
(6) and lower locating device (7) the side surface dabbing that concrete (4), are formed to cylinder, by concrete (4) formed cylinder top surface and
Bottom surface polishes, and the concrete (4) at the top of upper steel pipe (2) is polished；Construction procedure d, as shown in Fig. 3 (d), the two of outer steel pipe (1)
Finished edge is held, is heated outer steel pipe (1), outer steel pipe (1) is covered on the cylinder that concrete (4) are formed.
As shown in figure 4, Fig. 4 (a) is the cross-sectional view of upper locator of the invention, Fig. 4 (b) is upper locator of the invention
Top view, locator (6) are made of casing (61), fastening screw (62) and bracket (63), and casing (61) is round steel pipe, fasten spiral shell
Nail (62) is mounted in the screw hole on casing (61), and bracket (63) and casing (61) are integrally welded, and bracket has spiral shell on (63)
Keyhole (9), bracket (63) bottom are concordant with casing (61) bottom.
As shown in figure 5, Fig. 5 (a) is the cross-sectional view of lower locating device of the invention, Fig. 5 (b) is lower locating device of the invention
Top view, lower locating device (7) are made of bottom plate (71), top plate (72) and pillar (73), and bottom plate (71) and top plate (72) are circle,
The center of circle of bottom plate (71) and top plate (72) is located on same perpendicular, has on bottom plate (71) bolt hole (9), bottom plate (71), top plate
(72) and pillar (73) is integrally welded.
As shown in fig. 6, concrete when precast prestressed steel core concrete column assembled in situ of the invention, at the top of lower floor's post
(4) grouting material (10) are smeared on surface, grouting material (10) is smeared at the top of the upper steel pipe (2) of lower floor's post, by the lower steel pipe of upper strata post
(3) it covers on the upper steel pipe (2) of lower floor's post, is welded between the outer steel pipe (1) of lower floor's post and upper strata post, form butt weld
(11).
Claims (2)
1. a kind of precast prestressed steel core concrete column, by outer steel pipe, upper steel pipe, lower steel pipe and coagulation local soil type at, it is characterized in that:
Outer steel pipe, upper steel pipe and lower steel pipe are all round steel pipe, and the axis of outer steel pipe, upper steel pipe and lower steel pipe is overlapped；Upper steel pipe is located at outer
Outer steel pipe is stretched out in the top of steel pipe, one end, and the length for stretching out outer steel pipe is not less than the half of outer steel pipe internal diameter, protrudes into outer steel pipe
Length is equal to extension elongation；Lower steel pipe is located at the lower part of outer steel pipe, does not stretch out outer steel pipe, and the internal diameter of lower steel pipe is equal to upper steel pipe
The length of outer diameter, lower steel pipe is 1mm bigger than the extension elongation of upper steel pipe；Outer steel pipe and upper steel duct fill concrete, lower steel pipe
Inside does not have concrete.
2. a kind of construction method for realizing precast prestressed steel core concrete column described in claim 1, it is characterized in that: by lower steel
Pipe sleeve makes the top surface of lower steel pipe and the either flush of lower locating device top plate, is connected with punching block in the protruding portion of lower locating device
Upper locator is fixed by bolts on steel form by plate and lower locating device, upper steel pipe is penetrated into the casing of upper locator, is used
Fastening screw is fixed；In the inside casting concrete of steel form and upper steel pipe；Tear steel form, upper locator and lower locating device open, it will
Concrete forms the side surface dabbing of cylinder, and the top and bottom that concrete forms cylinder are polished, by the mixed of upper steel pipe top
Solidifying soil polishes；The both ends finished edge of outer steel pipe heats outer steel pipe, and outer steel pipe is covered on the cylinder that concrete is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910497576.6A CN110306727B (en) | 2019-06-10 | 2019-06-10 | Prefabricated prestressed steel pipe concrete column and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910497576.6A CN110306727B (en) | 2019-06-10 | 2019-06-10 | Prefabricated prestressed steel pipe concrete column and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110306727A true CN110306727A (en) | 2019-10-08 |
| CN110306727B CN110306727B (en) | 2021-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910497576.6A Expired - Fee Related CN110306727B (en) | 2019-06-10 | 2019-06-10 | Prefabricated prestressed steel pipe concrete column and construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984472A (en) * | 2019-12-30 | 2020-04-10 | 扬州大学 | High-temperature prestressed FRP pipe constraint profile steel recycled concrete column and preparation method thereof |
| CN111119409A (en) * | 2019-12-30 | 2020-05-08 | 扬州大学 | Prestressed steel pipe constraint steel concrete column and preparation method thereof |
| CN111501520A (en) * | 2020-05-08 | 2020-08-07 | 重庆交通大学 | Pouring process for preventing concrete filled steel tube from being emptied |
| CN112922152A (en) * | 2021-01-18 | 2021-06-08 | 罗洪湖 | Steel pipe concrete beam column structure for building and manufacturing method thereof |
| CN113700221A (en) * | 2021-08-11 | 2021-11-26 | 河北省建筑工程质量检测中心有限公司 | Prefabricated prestressed steel pipe concrete column and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050050837A1 (en) * | 2003-09-08 | 2005-03-10 | Jiaduo Wang | Meshed (porous) steel pipe/tube used as concrete reinforcement |
| EP1567735B1 (en) * | 2002-10-22 | 2012-06-06 | Fearn, Richard Neil | Fabric column and pad concrete form |
| CN103240802A (en) * | 2013-05-16 | 2013-08-14 | 淮海工学院 | Production method of prestress concrete filled steel tube |
| CN205637144U (en) * | 2016-05-26 | 2016-10-12 | 长安大学 | Double entry circular steel tube confined concrete post and concrete beam node structure |
| CN208533704U (en) * | 2018-05-30 | 2019-02-22 | 常州工程职业技术学院 | A kind of prefabricated post node connecting structure using rebound pin key fixed structure |
| CN109653437A (en) * | 2019-01-14 | 2019-04-19 | 沈阳建筑大学 | A kind of preparation method of the strength round steel pipe concrete column using steel pipe active constraint |
-
2019
- 2019-06-10 CN CN201910497576.6A patent/CN110306727B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1567735B1 (en) * | 2002-10-22 | 2012-06-06 | Fearn, Richard Neil | Fabric column and pad concrete form |
| US20050050837A1 (en) * | 2003-09-08 | 2005-03-10 | Jiaduo Wang | Meshed (porous) steel pipe/tube used as concrete reinforcement |
| CN103240802A (en) * | 2013-05-16 | 2013-08-14 | 淮海工学院 | Production method of prestress concrete filled steel tube |
| CN205637144U (en) * | 2016-05-26 | 2016-10-12 | 长安大学 | Double entry circular steel tube confined concrete post and concrete beam node structure |
| CN208533704U (en) * | 2018-05-30 | 2019-02-22 | 常州工程职业技术学院 | A kind of prefabricated post node connecting structure using rebound pin key fixed structure |
| CN109653437A (en) * | 2019-01-14 | 2019-04-19 | 沈阳建筑大学 | A kind of preparation method of the strength round steel pipe concrete column using steel pipe active constraint |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984472A (en) * | 2019-12-30 | 2020-04-10 | 扬州大学 | High-temperature prestressed FRP pipe constraint profile steel recycled concrete column and preparation method thereof |
| CN111119409A (en) * | 2019-12-30 | 2020-05-08 | 扬州大学 | Prestressed steel pipe constraint steel concrete column and preparation method thereof |
| CN111119409B (en) * | 2019-12-30 | 2022-03-04 | 扬州大学 | Prestressed steel pipe constraint steel concrete column and preparation method thereof |
| CN111501520A (en) * | 2020-05-08 | 2020-08-07 | 重庆交通大学 | Pouring process for preventing concrete filled steel tube from being emptied |
| CN111501520B (en) * | 2020-05-08 | 2021-08-24 | 重庆交通大学 | Pouring process for preventing concrete filled steel tube from being emptied |
| CN112922152A (en) * | 2021-01-18 | 2021-06-08 | 罗洪湖 | Steel pipe concrete beam column structure for building and manufacturing method thereof |
| CN113700221A (en) * | 2021-08-11 | 2021-11-26 | 河北省建筑工程质量检测中心有限公司 | Prefabricated prestressed steel pipe concrete column and construction method |
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| Publication number | Publication date |
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| CN110306727B (en) | 2021-07-02 |
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