CN201671227U - SRC column with diagonally arranged cross steels with flanges - Google Patents

SRC column with diagonally arranged cross steels with flanges Download PDF

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Publication number
CN201671227U
CN201671227U CN2010202016317U CN201020201631U CN201671227U CN 201671227 U CN201671227 U CN 201671227U CN 2010202016317 U CN2010202016317 U CN 2010202016317U CN 201020201631 U CN201020201631 U CN 201020201631U CN 201671227 U CN201671227 U CN 201671227U
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CN
China
Prior art keywords
shaped steel
wing
concrete column
steel
diagonal
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Expired - Lifetime
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CN2010202016317U
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Chinese (zh)
Inventor
史庆轩
王秋维
姜维山
张兴虎
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Xian University of Architecture and Technology
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Xian University of Architecture and Technology
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Priority to CN2010202016317U priority Critical patent/CN201671227U/en
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Abstract

The utility model discloses a novel section type steel reinforced concrete column, namely a SRC column with diagonally arranged cross steels with flanges, which comprises a concrete column and a spiral stirrup frame arranged in the concrete column. Longitudinal steel bars are respectively uniformly distributed in the side angles on the inside walls of the spiral stirrup frame along the depth direction of the spiral stirrup frame. The SRC column is characterized in that the cross steels distributed diagonally are arranged in the frame consisting of spiral stirrups and the longitudinal steel bars in the concrete column; a web of the cross steels which are distributed diagonally and are provided with the flanges is respectively vertically provided with shaped steel flanges; and both end parts of the shaped steel flanges are adhered to the inside surfaces of the spiral stirrups. The diagonals of the web of the the cross steels which are arranged diagonally and are provided with the flanges and the column section are coincident manually, and thus, not only the steel reinforced concrete column can resist inclined earthquake action, but also the shearing force resolution in the diagonal direction can effective resist multidimensional earthquake action so as to greatly improve earthquake resistance of the steel reinforced concrete column.

Description

Diagonal is arranged band edge of a wing cross-shaped steel SRC post
Technical field
The utility model relates to the SRC post of steel and concrete combined structure and combination construction, and particularly diagonal is arranged band edge of a wing cross-shaped steel SRC post.
Background technology
Steel reinforced concrete structure be with shaped steel be skeleton and around the shaped steel flush type combined structure system of configuration reinforcement and fluid concrete, be called for short the SRC structure.Profile steel concrete column is the important component part of steel reinforced concrete structure, and profile steel concrete column mainly adopts several shaped steel forms such as I shape, H shape and core cross at present, and test shows that the more common RC post of the anti-seismic performance of profile steel concrete column increases.Yet along with going deep into that engineering is used and studied, the limitation that the present tradition that adopts is joined steel form SRC post clearly embodies.Conventional I shape and H shape etc. are joined the steel form can not provide operative constraint to the core concrete of column section, and the slippage between shaped steel and the concrete has reduced the bearing capacity and the deformability of post; In addition, tradition is joined the common quadrangle stirrup of the normal employing of steel form SRC post, and 135 ° of crotch places of stirrup destroy easily.When adopting tradition to join the steel form, the ductility of profile steel concrete column is relatively poor, and limit value of axial compression ratio is lower, and the more common RC post of anti-seismic performance improves few, its restricted application.Therefore, how research improves is joined the steel form to improve the supporting capacity and the anti-seismic performance of post, problem demanding prompt solution when just becoming the applied steel concrete column in highrise building and high earthquake intensity district.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of new type section form profile steel concrete column is provided, and promptly diagonal is arranged band edge of a wing cross-shaped steel SRC post, overcomes the deficiency that tradition is joined the steel form, thus the anti-seismic performance of improved-type greatly steel concrete column.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: diagonal is arranged band edge of a wing cross-shaped steel SRC post, comprise concrete column, and the spiral stirrup framework that is provided with in the concrete column, longitudinal reinforcement is distributed in respectively in the side angle of its inside wall along the depth direction of spiral stirrup framework, it is characterized in that: the band edge of a wing cross-shaped steel that is the diagonal distribution is set in the framework that spiral stirrup in described concrete column and longitudinal reinforcement constitute, this is on the web of the band edge of a wing cross-shaped steel that diagonal distributes and is vertically installed with the shaped steel edge of a wing respectively, and the both side ends on this shaped steel edge of a wing and spiral stirrup medial surface are close to.
Described concrete column is square post, and the web of band edge of a wing cross-shaped steel overlaps with two diagonal of square post in this square post.
Described band edge of a wing cross-shaped steel is structure as a whole.
Described shaped steel flange width is 1/4 of a concrete column breadth of section.
It is 5%~9% that the steel rate is joined in the cross section of described band edge of a wing cross-shaped steel SRC post.
The beneficial effects of the utility model are:
Diagonal arranges that the web of band edge of a wing cross-shaped steel overlaps with the column section diagonal, and therefore profile steel concrete column can not only resist oblique geological process, and the shearing of diagonal decomposes can also effectively resist multi-component earthquake excitation; In addition, this kind joined under the steel form, be subjected to the concrete area of shaped steel constraint and intensity all more than common SRC post raising, thereby the ductility of post and energy dissipation capacity improves greatly.The utility model has changed the mode of failure of profile steel concrete column, and very big bearing capacity is still arranged behind the component damage, and this variation both can reduce earthquake sheet significantly, can embody the design principles of no collapsing with strong earthquake again, makes member have good seismic resistance.
Profile steel concrete column is arranged band edge of a wing cross-shaped steel by the configuration diagonal, thereby guarantee that shaped steel, vertical muscle and stirrup form a whole steelframe, the constraint core concrete also can collaborative work with it, reaches the purpose that improves profile steel concrete column supporting capacity and anti-seismic performance.Diagonal arranges that band edge of a wing cross-shaped steel SRC rod structure can be applied in the building in highrise building and high earthquake intensity area, particularly the highrise building in the above area of seismic fortification intensity 8 degree.
Description of drawings
Fig. 1 arranges the schematic cross-section of band edge of a wing cross-shaped steel SRC post for diagonal.
Among the figure: 1 is the shaped steel web, and 2 is longitudinal reinforcement, and 3 is the quadrangle spiral stirrup, and 4 is the shaped steel edge of a wing.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is described further.Need to prove that following embodiment only limits to explanation of the present utility model, but do not limit practical range of the present utility model.The increase of every structure of making on the basis of this programme or with the replacement of same content all should belong to protection domain of the present utility model.
As shown in Figure 1, this diagonal is arranged band edge of a wing cross-shaped steel SRC post, comprise concrete column, and spiral stirrup 3 frameworks that are provided with in the concrete column, longitudinal reinforcement 2 is distributed in respectively in the side angle of its inside wall along the depth direction of spiral stirrup 3 frameworks, wherein: in the framework that spiral stirrup 3 in described concrete column and longitudinal reinforcement 2 constitute the band edge of a wing cross-shaped steel that is the diagonal distribution is set, this is on the web 1 of the band edge of a wing cross-shaped steel that diagonal distributes and is vertically installed with the shaped steel edge of a wing 4 respectively, and the both side ends on this shaped steel edge of a wing 4 and spiral stirrup 3 medial surfaces are close to.Concrete column shown in Figure 1 is square rod structure, and band edge of a wing cross-shaped steel web 1 overlaps with two diagonal of square post in this square post.The end face on the shaped steel edge of a wing 4 of band edge of a wing cross-shaped steel is relative with longitudinal reinforcement 2.And band edge of a wing cross-shaped steel and longitudinal reinforcement 2 and quadrangle spiral stirrup 3 form the whole steelframe in a space, the constraint core concrete and with its co-operation; Longitudinal reinforcement 2 with spiral stirrup 3 colligations be in the same place, the both side ends on the outer edge of a wing 4 of shaped steel is close in eight positions and spiral stirrup 3 inboards, thus the three forms the whole steelframe constraint in space core concrete, the bearing capacity and the anti-seismic performance of assurance SRC post.
Diagonal of the present utility model arranges that band edge of a wing cross-shaped steel is designed to integrative-structure, and promptly it is welded as structure shown in Figure 1 with steel part.The shaped steel edge of a wing 4 of band edge of a wing cross-shaped steel is vertically set on the cross-shaped steel web 1.These shaped steel edge of a wing 4 width are 1/4 of concrete column cross section overall width.
This diagonal arranges that band edge of a wing cross-shaped steel is used in combination and can produces operative constraint to core concrete with continuous helical stirrup 3 and common longitudinal reinforcement 2, improves concrete intensity and ductility greatly, improves structural seismic performance.
Because the repeatability of geological process, the oblique layout band of diagonal edge of a wing cross-shaped steel can effectively improve the anti-seismic performance and the shear-carrying capacity of SRC post.We show by the experimental study result: diagonal arranges that the shaped steel and the concrete of band edge of a wing cross-shaped steel SRC post can keep collaborative work until the bearing capacity damage that reaches capacity, the cross section strain meets plane hypothesis, when the design ratio of axial compressive force to axial compressive ultimate capacity of section is 1.0, the hysteresis loop of test specimen is still comparatively full, bearing capacity and deformability are big, energy dissipation capacity is strong, has better anti.
In order to guarantee enough supporting capacitys and anti-seismic performance, the steel rate of joining in cross section can not be low excessively, can not be too high, shaped steel configuration very few misses one's aim, but the shaped steel configuration too much increase construction costs again.Diagonal arranges that the steel rate of joining of band edge of a wing cross-shaped steel SRC post mainly controls by the shaped steel flange width, and in conjunction with experimental study and China's national situation, the cross section is joined the steel rate and is advisable 5%~9%, and it is 7.5% that present embodiment the best is joined the steel rate.Join the profile steel concrete column of steel rate in this certain scope, its bearing capacity and ultimate deformation improve 30% and 55% respectively than the plain edition steel concrete column of same cross-sectional size and ratio of axial compressive force to axial compressive ultimate capacity of section.
Following table 1 has provided the comparison of the utility model and plain edition steel concrete column anti-seismic performance.
Table 1 the utility model and common SRC post supporting capacity and ultimate deformation are frequently
In order to guarantee shaped steel and concrete collaborative work better, diagonal arranges that longitudinal reinforcement and the stirrup of being with edge of a wing cross-shaped steel SRC post to dispose some in the cross section are necessary fully, also very effective, in the test that we finish, ductility bending failure has preferably all taken place in the profile steel concrete column that has disposed the vertical muscle of continuous helical stirrup and some.
The construction technology of profile steel concrete column described in the utility model:
Diagonal arranges that the shaped steel skeleton of band edge of a wing cross-shaped steel SRC post is welded by the steel plate of corresponding specification as required, it is made in specialized steel structure company, transport to the job site then, carry out colligation with vertical muscle and stirrup again, thus further formwork and concreting.Spiral stirrup adopts quadrangle continuous helical stirrup, its diameter and shaped steel size according to post is utilized the bar bending machine, to indulge muscle during colligation earlier and be welded on the interior hoop by spacing, as a whole from the top down with the shaped steel parcel, the shaped steel flange width is 1/4 of a column section overall height then.
If be connected to form space structures, then can weld the shaped steel in reinforcing bar in the beam and the SRC post at connection contact place with reinforced concrete beam; If be connected to form overall structure with girder with rolled steel section en cased in concrete or girder steel, then vertical shaped steel in the post and the shaped steel in the beam adopt welding, so just formed whole shaped steel skeleton, it can be used as the load-bearing skeleton of construction stage, resist bigger vertical and horizontal loading, create certain social benefit and economic benefit.

Claims (5)

1. diagonal is arranged band edge of a wing cross-shaped steel SRC post, comprise concrete column, and spiral stirrup (3) framework that is provided with in the concrete column, longitudinal reinforcement (2) is distributed in respectively in the side angle of its inside wall along the depth direction of spiral stirrup (3) framework, it is characterized in that: the cross-shaped steel that is the diagonal distribution is set in the framework that spiral stirrup in described concrete column (3) and longitudinal reinforcement (2) constitute, this is on the web (1) of the band edge of a wing cross-shaped steel that diagonal distributes and is vertically installed with the shaped steel edge of a wing (4) respectively, and the both side ends on this shaped steel edge of a wing (4) is pasted mutually with spiral stirrup (3) medial surface.
2. diagonal according to claim 1 is arranged band edge of a wing cross-shaped steel SRC post, and it is characterized in that: described concrete column is square post, and band edge of a wing cross-shaped steel web (1) overlaps with two diagonal of square post in this square post.
3. diagonal according to claim 1 is arranged band edge of a wing cross-shaped steel SRC post, and it is characterized in that: described band edge of a wing cross-shaped steel is structure as a whole.
4. diagonal according to claim 1 is arranged band edge of a wing cross-shaped steel SRC post, and it is characterized in that: the described shaped steel edge of a wing (4) width is 1/4 of a concrete column breadth of section.
5. diagonal according to claim 1 is arranged band edge of a wing cross-shaped steel SRC post, and it is characterized in that: it is 5%~9% that the steel rate is joined in the cross section of described band edge of a wing cross-shaped steel SRC post.
CN2010202016317U 2010-05-25 2010-05-25 SRC column with diagonally arranged cross steels with flanges Expired - Lifetime CN201671227U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101812898A (en) * 2010-05-25 2010-08-25 西安建筑科技大学 45-degree arranged cross section steel SRC column with flanges
CN102642247A (en) * 2011-02-18 2012-08-22 桑菲斯株式会社 Method of constructing prefabricated steel reinforced concrete (psrc) column using angle steels
CN103556782A (en) * 2013-11-04 2014-02-05 山东建筑大学 Concrete column and making method thereof
CN112064788A (en) * 2020-08-21 2020-12-11 盐城工学院 Reinforced concrete frame column reinforcing structure and reinforcing method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101812898A (en) * 2010-05-25 2010-08-25 西安建筑科技大学 45-degree arranged cross section steel SRC column with flanges
CN102642247A (en) * 2011-02-18 2012-08-22 桑菲斯株式会社 Method of constructing prefabricated steel reinforced concrete (psrc) column using angle steels
CN104196170A (en) * 2011-02-18 2014-12-10 桑菲斯株式会社 Method of constructing prefabricated steel reinforced concrete (psrc) column using angle steels
CN103556782A (en) * 2013-11-04 2014-02-05 山东建筑大学 Concrete column and making method thereof
CN103556782B (en) * 2013-11-04 2015-09-02 山东建筑大学 A kind of concrete column and preparation method thereof
CN112064788A (en) * 2020-08-21 2020-12-11 盐城工学院 Reinforced concrete frame column reinforcing structure and reinforcing method

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AV01 Patent right actively abandoned

Granted publication date: 20101215

Effective date of abandoning: 20111026