CN209429390U - A kind of modified cross shaped rc columns - Google Patents
A kind of modified cross shaped rc columns Download PDFInfo
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- CN209429390U CN209429390U CN201822044987.3U CN201822044987U CN209429390U CN 209429390 U CN209429390 U CN 209429390U CN 201822044987 U CN201822044987 U CN 201822044987U CN 209429390 U CN209429390 U CN 209429390U
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- reinforcing bar
- stirrup
- column
- limb
- triangle
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Abstract
The utility model provides a kind of modified cross shaped rc columns, the cylinder to be formed is combined using concrete and rebar, four middle part reinforcing bars are equipped in confluence, four column limbs are respectively provided with two external reinforcing bars, middle part reinforcing bar and external reinforcing bar are arranged in groined type, rectangle hoop is set on the outside of middle part reinforcing bar and external reinforcing bar, forms two vertical rectangle hoop structures；Stiffener is set to the outside of middle part reinforcing bar, and middle part reinforcing bar is located on the side of quadrangle；Middle part stirrup is located on the outside of four stiffeners, and several middle part stirrups and four stiffeners form center and constrain enhancing structure；The external reinforcing bar of two of column limb and adjacent nearest stiffener are arranged in isosceles triangle, and triangle u stirrup is set on the outside of isosceles triangle, and several triangle u stirrups, external reinforcing bar and stiffener form four column limbs and constrain enhancing structure；Center constrains enhancing structure and connect with four column limb constraint enhancing structures, forms the concrete constraint enhancing structure of Special-Shaped Column.
Description
Technical field
The utility model relates to armored concrete field more particularly to a kind of modified cross armored concrete abnormity
Column.
Background technique
Special-Shaped Column refers under the premise of meeting the requirement such as the rigidity of structure and bearing capacity, uses function, building according to building
The requirement of design arrangement and the column for taking different geometries section: the column of the shaped cross such as T, L, cross, and section
The high length depth ratio of the limb of each limb is not more than 4 column.Each limb limb length of general Special-Shaped Column is equal, and shock resistance is than unequal abnormity
Column is more preferable.
The stirrup configured in conventional steel bar concrete Special-Shaped Column is horizontal hoop, that is, is parallel to two engineering axis directions, is
The rectangle hoop of closure, it is this kind of to match hoop formula to elongated shape shaped rc columns right in the biggish application scenarios of stress
The restriction ability of concrete seems insufficient, and concrete is easy to that lateral expansion occurs.
Meanwhile when cylinder stress is larger, in the confluence of two engineering axis, so-called inner corner trim region, that is, abnormity
The core of column, this region are a stress confluences, and stress is the most complicated, cross of the common horizontal hoop to limitation concrete
It is difficult to meet to expansion, it is also particularly important for improving the concrete restriction ability in inner corner trim area.
Cross shaped rc columns are mainly used in the center pillar of building, stress complexity and larger, traditional cross
Shape shaped rc columns are often difficult to meet the requirements in terms of core space concrete constraint, need to be expired by increasing stirrup ratio
Foot correlation stress performance demand, leading to it, hooping bars layout is intensive in elongated Special-Shaped Column column limb, be unfavorable for concrete construction and
Related process requirement.
In view of this, it is proposed that a kind of modified cross shaped rc columns, to solve the above problems.
Summary of the invention
The purpose of this utility model is to provide a kind of modified cross shaped rc columns, by traditional
On the basis of cross shaped rc columns, increase stiffener and corresponding stirrup, forms constraint enhancing structure, thus
The raising to the concrete restriction ability in Special-Shaped Column confluence is realized, to improve the concrete restriction ability to inner corner trim area.
The technology that the utility model uses is:
A kind of modified cross shaped rc columns, the cylinder to be formed, cylinder are combined using concrete and rebar
Including confluence and four column limbs, four middle part reinforcing bars are equipped in confluence, four column limbs are respectively provided with two external reinforcing bars, middle part
Reinforcing bar and external reinforcing bar are arranged in groined type, further include several rectangle hoops, and rectangle hoop is set to middle part reinforcing bar and external reinforcing bar
Outside forms two vertical rectangle hoop structures；It further include four stiffeners, stiffener is set to the outer of middle part reinforcing bar
Side, four stiffeners are in quadrangular array, and middle part reinforcing bar is located on the side of quadrangle；It further include several middle part stirrups, middle part
Stirrup is located on the outside of four stiffeners, and several middle part stirrups and four stiffeners form center and constrain enhancing structure；Also wrap
Several triangle u stirrups are included, the two external reinforcing bars and adjacent nearest stiffener of column limb are arranged in isosceles triangle, triangle
U stirrup is set on the outside of isosceles triangle, and several triangle u stirrups, external reinforcing bar and stiffener form four column limb constraints and increase
Strong structure；Center constrains enhancing structure and connect with four column limb constraint enhancing structures, forms cross shaped rc columns
Concrete constrain enhancing structure.
Increasing structure and the constraint of column limb by the center constraint that stiffener and middle part reinforcing bar and external reinforcing bar are formed enhances
Structure, the connection of two enhancing structures realize the concrete restriction ability to confluence and column limb, improve Special-Shaped Column entirety
Vertical bearing capacity.
As advanced optimizing for scheme, stiffener is located at the middle part of the limb wide direction of column limb.Stiffener is set to column
The position of center line of limb realizes stress symmetrical structure, guarantees the uniform force of cylinder.
As advanced optimizing for scheme, the vertical range of the external external wall of reinforcing bar distance post is 20-40mm.External reinforcing bar
Outer concrete thickness cannot be too thin, and too thin concrete layer is easily peeled off, too thick, and concrete constrains the binding effect of enhancing structure
Difference.
As advanced optimizing for scheme, the limb height and the wide ratio of limb of column limb are 2-3.The limb height of cylinder should not be wider than limb
Size is too many greatly, and too high limb height causes the area coverage of column limb constraint enhancing structure to become smaller, and binding effect is lower.
As advanced optimizing for scheme, the waist edges three such as two outside reinforcing bars and the adjacent nearest stiffener of column limb are in
Triangular arrangement, triangle u stirrup are equilateral triangular shape.When controlling limb height and the wide ratio of limb, column limb can be constrained into increasing
Strong structure is designed as equilateral triangle structure, and structure is the most stable at this time, and stress intensity is best.
As advanced optimizing for scheme, the square arrangement of middle part reinforcing bar, the square arrangement of stiffener.In tradition
Special-Shaped Column in, confluence is square structure, therefore, for improve special-shaped column structure symmetry, middle part reinforcing bar and reinforce
Reinforcing bar is square arrangement, is located on the angle of square, and two squares are arranged concentrically, and is in 45 degree of angles.
As advanced optimizing for scheme, the longitudinal pitch of rectangle hoop is 80-200mm, the longitudinal pitch of middle part stirrup
For 80-200mm, the spacing of triangle u stirrup is 80-200mm.The spacing of all kinds of stirrups should be arranged rationally, prevent in concrete
Oversize rock material is stuck between stirrup, causes concreting effect poor, structure leakiness.
As advanced optimizing for scheme, rectangle hoop, middle part stirrup and triangle u stirrup are closed stirrup.Each hoop
Muscle uses closed stirrup structure, improves the effect of stirrup banding, improves the effect of pullling to reinforcing bar.Reserve crotch knot in end
Structure is reinforced using welding when necessary.
As advanced optimizing for scheme, the diameter of rectangle hoop, middle part stirrup and triangle u stirrup is 6-8mm.Stirrup
In view of actual requirement, too small stirrup is easily broken off, and excessive stirrup bending difficulty is big, and heavy workload be easy to cause wave
Take.
Compared with prior art, the utility model has the beneficial effects that
Increasing structure and the constraint of column limb by the center constraint that stiffener and middle part reinforcing bar and external reinforcing bar are formed enhances
Structure, the connection of two enhancing structures realize the concrete restriction ability to confluence and column limb, improve Special-Shaped Column entirety
Vertical bearing capacity.
By the symmetry and that by middle part reinforcing bar, stiffener and external reinforcing bar symmetric design, ensure that column structure
Even property, the position for preventing unbalance stress occur.
By controlling the spacing and diameter of stirrup, on the basis of guaranteeing binding effect, material saving cost and reduction
Labor intensity.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of modified cross shaped rc columns provided by the utility model；
Fig. 2 is that a kind of structure of the cylinder of modified cross shaped rc columns provided by the utility model is shown
It is intended to.
Specific embodiment
The utility model is described in detail in each embodiment shown in reference to the accompanying drawing, but it should be stated that,
These embodiments are not limitation of the utility model, those of ordinary skill in the art according to these embodiments made by function
Energy, method or equivalent transformation or substitution in structure, belong within the protection scope of the utility model.
In the description of the present embodiment, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the utility model and creates and simplify description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as the limitation created to the utility model.
In addition, term " first ", " second ", " third " etc. are used for description purposes only, it is not understood to indicate or imply
Relative importance or the quantity for implicitly indicating indicated technical characteristic.The feature of " first ", " second " etc. is defined as a result,
It can explicitly or implicitly include one or more of the features.In the description that the utility model is created, unless otherwise
Illustrate, the meaning of " plurality " is two or more.
Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removable
Connection is unloaded, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, can pass through
Concrete condition understands concrete meaning of the above-mentioned term in the utility model creation.
Embodiment 1:
Referring to shown in attached drawing 1-2, a kind of modified cross shaped rc columns are combined using concrete and rebar
The cylinder 1 of formation, cylinder 1 include confluence 2 and four column limbs 3, and four middle part reinforcing bars 4, four column limbs 3 are equipped in confluence 2
Two external reinforcing bars 6 are respectively provided with, it further includes several rectangle hoops 7, rectangle that middle part reinforcing bar 4 and external reinforcing bar 6 are arranged in groined type
Stirrup 7 is set to 6 outside of middle part reinforcing bar 4 and external reinforcing bar, forms two vertical 7 structures of rectangle hoop；It further include four reinforcements
Reinforcing bar 5, stiffener 5 are set to the outside of middle part reinforcing bar 4, and four stiffeners 5 are in quadrangular array, and middle part reinforcing bar 4 is located at four
While shape while on；Further include several middle part stirrups 8, middle part stirrup 8 is located at four stiffeners, 5 outside, several middle part stirrups 8 with
Four stiffeners 5 form center and constrain enhancing structure；It further include several triangle u stirrups 9, the external reinforcing bar 6 of two of column limb 3
It is arranged with adjacent nearest stiffener 5 in isosceles triangle, triangle u stirrup 9 is set on the outside of isosceles triangle, several triangles
U stirrup 9, external reinforcing bar 6 and stiffener 5 form four column limbs 3 and constrain enhancing structure；Center constrains enhancing structure and four
Column limb 3 constrains enhancing structure connection, and the concrete for forming cross shaped rc columns constrains enhancing structure.
In traditional cross shaped rc columns, middle part reinforcing bar 4, external reinforcing bar 6 and rectangle are generally contained only
7 three kinds of bar constructions of stirrup, the bar construction formed is lower to the restraining force of the concrete lateral expansion of confluence 2, to yin
The protection at angle seems insufficient.
In the present embodiment, for the deficiency of existing structure, at middle part, stiffener 5 is arranged in the external of reinforcing bar 4, then passes through
The connection of stiffener 5 and middle part reinforcing bar 4, the connection of stiffener 5 and external reinforcing bar 6, to reinforce whole cylinder 1 to concrete
The restriction ability of lateral expansion.
Structure is increased with the constraint of 4 center of middle part reinforcing bar by 8 connection reinforcement reinforcing bar 5 of middle part stirrup, passes through triangle hoop
The column limb 3 that 9 connection reinforcement reinforcing bar 5 of muscle is formed with external reinforcing bar 6 constrains enhancing structure, and the connection of two enhancing structures realizes pair
The concrete restriction ability of confluence 2 and column limb 3 improves the vertical bearing capacity of Special-Shaped Column entirety.
Embodiment 2:
It please refers to shown in Fig. 1-2, the present embodiment and the difference of embodiment 1 are the sizes of position and cylinder 1 to reinforcing bar
Relationship has made optimization design, to improve the bearing capacity of cylinder 1.
In the present embodiment, stiffener 5 is located at the middle part of the limb wide direction of column limb 3.As shown in Figure 1, stiffener 5 is set
In the position of center line of column limb 3, stress symmetrical structure is realized, guarantee the uniform force of cylinder 1.
Wherein, vertical range of the external reinforcing bar 6 apart from 1 outer wall of cylinder is 20-40mm.Concrete Thick outside external reinforcing bar 6
Degree cannot be too thin, and too thin concrete layer is easily peeled off, too thick, and the binding effect that concrete constrains enhancing structure is poor.
As advanced optimizing for scheme, the limb height and the wide ratio of limb of column limb 3 are 2-3.The limb height of cylinder 1 should not compare limb
Wide size is too many greatly, and the area coverage that too high limb height causes column limb 3 to constrain enhancing structure becomes smaller, and binding effect is lower.
As advanced optimizing for scheme, the external reinforcing bar 6 of two of column limb 3 and adjacent nearest stiffener 5 are in isosceles
Side rounded projections arranged, triangle u stirrup 9 are equilateral triangular shape.It, can be by column limb 3 when controlling limb height and the wide ratio of limb
Constraint enhancing structure is designed as equilateral triangle structure, and structure is the most stable at this time, and stress intensity is best.
As advanced optimizing for scheme, the square arrangement of middle part reinforcing bar 4, the square arrangement of stiffener 5.It is passing
In the Special-Shaped Column of system, confluence 2 is square structure, therefore, for improve special-shaped column structure symmetry, middle part reinforcing bar 4 with
Stiffener 5 is square arrangement, is located on the angle of square, and two squares are arranged concentrically, and is in 45 degree of angles.
Through the above technical solution, the arrangement of reinforcing bar is in stringent symmetric design, middle part reinforcing bar 4 and 5 shape of stiffener
The restraining structure of pairs of confluence 2 generates identical protecting effect to four inner corner trims, and there is no the unequal situations in part.
In concrete lateral expansion, carry out outside extruding to middle part reinforcing bar 4 first, middle part reinforcing bar 4 with external steel
Muscle 6 and rectangle hoop 7 form first layer and constrain expansion structure；Stiffener 5 is formd by middle part stirrup 8 with middle part reinforcing bar 4
Center constraint increases structure, and middle part reinforcing bar 4 carries out the protection to inner corner trim by middle part stirrup 8；Then stiffener 5 is carried out again
It squeezes, 5 one side of stiffener forms the selfdiscipline structure of square with middle part rectangle, and any stiffener 5 is wanted
It deforms outward, the constraint by other three stiffeners 5；That is, any stiffener 5 will outward, at least
An other stiffener 5 is needed to deform inside, and for stiffener 5, itself have under concrete expansion effect past
Outer trend, and each stiffener 5 also forms stable triangular structure with external reinforcing bar 6, therefore, stiffener 5 is just
It is formed from the structure mutually constrained, is neither deformed outward, and do not deform inside in this way, is only broken in stirrup, so that restraining structure
Dismission just will appear the case where stiffener 5 deforms.
In embodiment, as shown in Figure 1, the region of multiple triangles is formd between reinforcing bar and stirrup, playing will be mixed
The effect of solidifying soil dispersion constraint, that is to say, that by the thinking to break the whole up into parts, the disadvantage of traditional binding effect difference is overcome.
Embodiment 3:
It please refers to shown in Fig. 1-2, the present embodiment and the difference of embodiment 2 are that the present embodiment is directed to the arrangement of all kinds of stirrups
Interval and materials size carry out reducing cost under the premise of guaranteeing the realization of effect.
In the present embodiment, the longitudinal pitch of rectangle hoop 7 is 80-200mm, and the longitudinal pitch of middle part stirrup 8 is 80-
200mm, the spacing of triangle u stirrup 9 are 80-200mm.The spacing of all kinds of stirrups should be arranged rationally, prevent the bulk in concrete
Building stones are stuck between stirrup, cause concreting effect poor, structure leakiness.
As advanced optimizing for scheme, rectangle hoop 7, middle part stirrup 8 and triangle u stirrup 9 are closed stirrup.Respectively
A stirrup uses closed stirrup structure, improves the effect of stirrup banding, improves the effect of pullling to reinforcing bar.Reserve crotch in end
Structure is reinforced using welding when necessary.
As advanced optimizing for scheme, the diameter of rectangle hoop 7, middle part stirrup 8 and triangle u stirrup 9 is 6-8mm.Hoop
Muscle considers actual requirement, and too small stirrup is easily broken off, and excessive stirrup bending difficulty is big, and heavy workload is be easy to cause
Waste.
Technical solution through this embodiment, stirrup both play self-acting, it is also contemplated that casting craft and reinforcing bar are taken
The realization of frame technique guarantees the banding effect to reinforcing bar by controlling diameter and the enclosed construction of stirrup, guarantees embodiment 2
In binding effect.In the spread length by control stirrup, guarantees the quality poured, guarantee the density of concrete.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of modified cross shaped rc columns are combined the cylinder to be formed (1) using concrete and rebar, special
Sign is that the cylinder (1) includes confluence (2) and four column limbs (3), and four middle part reinforcing bars are equipped in the confluence (2)
(4), four column limbs (3) are respectively provided with two external reinforcing bars (6), and the middle part reinforcing bar (4) and the external reinforcing bar (6) are in well
Font arrangement, further includes several rectangle hoops (7), and the rectangle hoop (7) is set to the middle part reinforcing bar (4) and external reinforcing bar
(6) outside forms two vertical rectangle hoop (7) structures；
It further include four stiffeners (5), the stiffener (5) is set to the outside of the middle part reinforcing bar (4), adds described in four
Strong reinforcing bar (5) is in quadrangular array, and the middle part reinforcing bar (4) is located on the side of the quadrangle；
It further include several middle part stirrups (8), the middle part stirrup (8) is located on the outside of four stiffeners (5), several described
Middle part stirrup (8) forms center with four stiffeners (5) and constrains enhancing structure；
It further include several triangle u stirrups (9), the external reinforcing bar (6) of two of the column limb (3) and adjacent recently described
Stiffener (5) is arranged in isosceles triangle, and the triangle u stirrup (9) is set on the outside of the isosceles triangle, several described
Triangle u stirrup (9), the external reinforcing bar (6) and the stiffener (5) form four column limbs (3) and constrain enhancing structure；
The center constraint enhancing structure is connect with four column limb (3) constraint enhancing structures, forms the cross reinforcing bar
The concrete of concrete profiled pile constrains enhancing structure.
2. a kind of modified cross shaped rc columns according to claim 1, which is characterized in that the reinforcement
Reinforcing bar (5) is located at the middle part of the limb wide direction of the column limb (3).
3. a kind of modified cross shaped rc columns according to claim 2, which is characterized in that the outside
Vertical range of the reinforcing bar (6) apart from the cylinder (1) outer wall is 20-40mm.
4. a kind of modified cross shaped rc columns according to claim 3, which is characterized in that the column limb
(3) limb height and the wide ratio of limb is 2-3.
5. a kind of modified cross shaped rc columns according to claim 4, which is characterized in that the column limb
(3) the external reinforcing bar (6) of two and the adjacent nearest stiffener (5) in etc. waist edges rounded projections arranged, described three
Angular stirrup (9) is equilateral triangular shape.
6. a kind of modified cross shaped rc columns according to claim 5, which is characterized in that the middle part
Reinforcing bar (4) square arrangement, the square arrangement of the stiffener (5).
7. a kind of modified cross shaped rc columns according to claim 1-6, which is characterized in that
The longitudinal pitch of the rectangle hoop (7) is 80-200mm, and the longitudinal pitch of the middle part stirrup (8) is 80-200mm, described
The spacing of triangle u stirrup (9) is 80-200mm.
8. a kind of modified cross shaped rc columns according to claim 7, which is characterized in that the rectangle
Stirrup (7), middle part stirrup (8) and triangle u stirrup (9) are closed stirrup.
9. a kind of modified cross shaped rc columns according to claim 8, which is characterized in that the rectangle
The diameter of stirrup (7), middle part stirrup (8) and triangle u stirrup (9) is 6-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822044987.3U CN209429390U (en) | 2018-12-07 | 2018-12-07 | A kind of modified cross shaped rc columns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822044987.3U CN209429390U (en) | 2018-12-07 | 2018-12-07 | A kind of modified cross shaped rc columns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209429390U true CN209429390U (en) | 2019-09-24 |
Family
ID=67971018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822044987.3U Expired - Fee Related CN209429390U (en) | 2018-12-07 | 2018-12-07 | A kind of modified cross shaped rc columns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209429390U (en) |
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2018
- 2018-12-07 CN CN201822044987.3U patent/CN209429390U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191030 Address after: 710000 No. 98, middle section of Wen Jing Road, Xi'an, Shaanxi Co-patentee after: Nanjing University of Technology Patentee after: China State Construction Northwest Architectural Design And Research Institute Co., Ltd. Address before: 710000 No. 98, middle section of Wen Jing Road, Xi'an, Shaanxi Patentee before: China State Construction Northwest Architectural Design And Research Institute Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190924 Termination date: 20201207 |