CN206438678U - A kind of Reinforced Concrete Double repeats gynostemium - Google Patents
A kind of Reinforced Concrete Double repeats gynostemium Download PDFInfo
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- CN206438678U CN206438678U CN201720022501.9U CN201720022501U CN206438678U CN 206438678 U CN206438678 U CN 206438678U CN 201720022501 U CN201720022501 U CN 201720022501U CN 206438678 U CN206438678 U CN 206438678U
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Abstract
The utility model is related to Reinforced Concrete Double and repeats gynostemium.Under the premise of post Ductility Requirement is ensured, ratio between axial force and compressive strength limit value how is improved, effectively to reduce the outstanding problem that the sectional dimension of reinforced column is increasingly becoming in reinforced concrete work practice.The utility model includes being provided with the outer core and inner core coaxial with concrete column in concrete column, concrete column；Outer core includes outer core stirrup, and alternately the outer core of fixation indulges muscle inside and outside outer core stirrup；The inner core that inner core includes on the inside of inner core stirrup and inner core stirrup indulges muscle；The outer ring of outer core, which is provided with the inside of the peripheral stirrup of concrete column, peripheral stirrup, is provided with the vertical muscle in periphery.The utility model can effectively improve the anti-seismic performance and limit value of axial compression ratio of reinforced column, and construction method is simple, it is easy to promote.
Description
Technical field
The utility model is related to a kind of armored concrete rod structure, and in particular to a kind of Reinforced Concrete Double weight composite core
Post.
Background technology
In armored concrete rod structure, axial compression ratio is the principal element of its anti-seismic performance, and specification is to its limit value of axial compression ratio
Considered critical has been carried out, has been the limit value of axial compression ratio requirement for meeting post during structure design, frequently with the method for increasing column cross-section size,
But increase after column cross-section size, cause building to be obviously reduced using space and influence indoor sight；Simultaneously because column section chi
Very little to increase, brittle shear failure will be caused by easily being formed under short column, geological process.Therefore, under the premise of post Ductility Requirement is ensured, such as
What improves ratio between axial force and compressive strength limit value, and reinforced concrete work is increasingly becoming with the sectional dimension for effectively reducing reinforced column
Outstanding problem in practice, is directly connected to the use function and anti-seismic performance of building structure.
To change this situation, improve strength grade of concrete, reduce column section, be more effective measure.It is high
Reinforced concrete has intensity height, the excellent properties such as strong small, stability, anti-permeability performance and excellent in durability is deformed, by high-strength coagulation
Soil is applied to building structure, can not only effectively solve the problems, such as short column, moreover it is possible to reduce concrete amount, Social benefit and economic benefit
Significantly.But there is the defects such as fragility is big, ductility is poor in high-strength concrete, and it is further notable with the raising of strength grade.
At present, in order to improve the ductility of high-strength concrete column, the measure mainly taken has modified concrete, stirrup restraint to mix
Solidifying soil, concrete filled steel tube, steel reinforced concrete, core arrangement of reinforcement stem etc..Although but these measures can improve reinforced column
Anti-seismic performance and limit value of axial compression ratio problem, but because the problems such as difficulty of construction is big, cost is higher, practical operation gets up to have one
Fixed limitation.
Utility model content
The purpose of this utility model is to provide a kind of Reinforced Concrete Double and repeats gynostemium and its construction method, effectively changes
The anti-seismic performance and limit value of axial compression ratio of kind reinforced column.
The technical scheme that the utility model is used for：
A kind of Reinforced Concrete Double repeats gynostemium, it is characterised in that：
Including concrete column, the outer core and inner core coaxial with concrete column is provided with concrete column；
Outer core includes outer core stirrup, and alternately the outer core of fixation indulges muscle inside and outside outer core stirrup；
The inner core that inner core includes on the inside of inner core stirrup and inner core stirrup indulges muscle；
The outer ring of outer core, which is provided with the inside of the peripheral stirrup of concrete column, peripheral stirrup, is provided with the vertical muscle in periphery.
The shape of cross section of concrete column is N sides shape or circle, wherein N >=4；
The shape of cross section of the tubular structure of peripheral stirrup formation is identical with concrete column.
The shape of cross section of the tubular structure of outer core stirrup and inner core stirrup formation is N sides shape or circle, wherein N >=4.
Peripheral stirrup is closed stirrups or tie hoop, using many limb hoop formulas.
The utility model has advantages below：
The dual composite core column that the utility model is related to includes concrete column, outer core and inner core, and inner core is by inner core stirrup
Muscle mixed constraints are indulged with inner core and are fixed together, and outer core is vertical, and muscle is by outer core stirrup restraint and is fixed together, inner core and outer core
The common bearing load in high-strength concrete column body.Under the constraint of inside and outside twin-core stirrup, the concrete shape of inside and outside twin-core constraint
Into local three dimension stress, the performance of high-strength concrete can have preferably been given play to, high-strength concrete MULTIPLE COMPOSITE stem is improved
Bearing capacity.Simultaneously because the structure of double-deck hoop, makes the intensity of high-strength concrete be fully utilized, height is solved well
There is the deficiency that fragility is big, ductility is poor in reinforced concrete, can effectively strengthen the deformability of core concrete, significantly improve
The bearing capacity of pillar.
The utility model, first construction obtains inner core and outer core, the then peripheral arrangement of reinforcement of colligation concrete column, then pass through template branch
Shield, pours high-strength concrete, forms concrete column, and Reinforced Concrete Double is can be obtained by after the demoulding and repeats gynostemium, construction party
Method is simple.
Brief description of the drawings
Fig. 1 is the outer core schematic diagram of the circular inner core of square concrete cylinder；
Fig. 2 is the outer core schematic diagram of the square inner core of square concrete cylinder；
In figure, 1, concrete column；2nd, peripheral stirrup；3rd, the vertical muscle in periphery；4th, outer core stirrup；5th, outer core indulges muscle；6th, inner core hoop
Muscle；7th, inner core indulges muscle.
Embodiment
The utility model is described in detail with reference to embodiment.
The Reinforced Concrete Double that the utility model is related to repeats to set in gynostemium, including concrete column 1, concrete column 1
There is the outer core and inner core coaxial with concrete column 1.
Outer core includes outer core stirrup 4, and indulges muscle 5 in the outer core of the inside and outside alternately fixation of outer core stirrup 4.Inner core includes inner core
Stirrup 6 and the inner core of the inner side of inner core stirrup 6 indulge muscle 7.The cross section shape of the tubular structure of outer core stirrup 4 and inner core stirrup 6 formation
Shape is N sides shape or circle, wherein N >=4.
The outer ring of outer core is provided with the peripheral stirrup 2 of concrete column 1, and the peripheral inner side of stirrup 2 is provided with the vertical muscle 3 in periphery.It is mixed
The shape of cross section of solidifying earth pillar 1 is N sides shape or circle, wherein N >=4；The shape of cross section of the tubular structure of the peripheral formation of stirrup 2
It is identical with concrete column 1.Peripheral stirrup 2 is closed stirrups or tie hoop, using many limb hoop formulas such as double limb hoops, three limb hoops.
Above-mentioned Reinforced Concrete Double repeats the construction method of gynostemium, comprises the following steps：
1. design and determine column cross-section size.According to design requirement, the size of suitable cross sectional shape and post is selected and outer
Arrangement of reinforcement is enclosed, the size and arrangement of reinforcement of inner core and outer core is determined.
2. the making of inner core.The utility model is explained with circular inner core stirrup 6 as illustrated, inner core is to indulge muscle 7 by inner core
The inner core stirrup 6 closed with typical circular is constituted.The position that inner core indulges muscle 7 is first fixed, inner core stirrup 6 is put into according to design drawing
The requirement stirrup spacing of paper carries out colligation, completes the making of inner core.
3. the making of outer core.The utility model is explained with core stirrup 4 outside circle.As shown in figure 1, outer core is the core outside circle
Stirrup 4 and outer core are indulged muscle 5 and constituted, as requested, select the reinforcing bar of suitable dimension, scene processing or the outer core stirrup of preprocessing
5, then indulge muscle 5 with outer core and carry out colligation, when core indulges muscle 5 outside colligation, adjacent outer core indulge to keep between muscle 5 it is suitable away from
From, and the distance for enabling any two outer cores to indulge muscle 5 is maintained at almost identical numerical value.Meanwhile, outer core indulges the position of the colligation of muscle 5
It should be that an outer core indulges the outside that the vertical muscle 5 of core outside the outer inner side of core stirrup 4, adjacent side of muscle 5 is located at outer core stirrup 4 to put,
Any two adjacent outer cores are indulged muscle 5 and are always located in outside one in the one of outer core stirrup 4.
4. the colligation of peripheral reinforcing bar.According to design drawing, the colligation of peripheral stirrup 2 and the vertical muscle in periphery is carried out.Peripheral stirrup 2
For closed stirrup, many limb hoop formulas such as double limb hoops, three limb hoops can be used.
5. the template support of concrete column 1.Template should have certain rigidity, the side of lightweight aggregate concrete during to prevent pouring
Pressure makes template deformation or runs mould.
6. prepare and pour high-strength concrete.Before engineering construction, high-strength coagulation is provided by the laboratory with corresponding qualification
Soil proportioning is single, and the match ratio for being adjusted to be adapted to scene by field laboratory again during construction is constructed.When pouring high-strength concrete,
It is noted that inner core and outer core will keep the center in post, the inclination or off-center because of inner core and outer core is prevented, and is made
There is causing because of stiffness controlling bearing capacity less than expection into the dual composite core column of high-strength concrete after shaping.
7. being stripped and conserving, when concrete reaches expected intensity, template is removed, and periodically cylinder is carried out according to specification
Maintenance, finally gives Reinforced Concrete Double and repeats gynostemium.
The utility model is to fix after-pouring concrete by inner core and outer core to be formed, and is set in the inside of high-strength concrete column 1
Put one layer of inner core and one layer of outer core forms dual composite core, inner core is located at the centre of post with outer core；If inner core is by inner core hoop
Muscle 6 and inner core are indulged muscle 7 and constituted；Outer core is indulged muscle 5 by outer core stirrup 4 and outer core and constituted, and outer core is indulged muscle 5 and constrained by outer core stirrup 4
And be fixed together, inner core and outer core common bearing load in high-strength concrete column body not only increase high-strength concrete column
Ductility and improve its limit value of axial compression ratio problem.
In outer core, for constraining, outer core stirrup 4 selection tie hoop or closed stirrups that outer core indulges muscle 5 are fixed.In arrangement
When outer core indulges muscle 5, the position that outer core indulges the colligation of muscle 5 should be that an outer core indulges muscle 5 positioned at the outer inner side of core stirrup 4, adjacent side
Outer core indulges the outside that muscle 5 is located at outer core stirrup 4, and any two adjacent outer cores are indulged muscle 5 and are always located in one in the one of outer core stirrup 4
Outside.
The utility model has following technical advantage：
High-strength concrete has compression strength high, and rigidity is big, and density is high, the low plurality of advantages of porosity.Its compression strength
It is 4 ~ 6 times of normal concrete intensity；Anti-side rigidity preferably can be provided for cylinder, its good crack resistance can be protected well
Stirrup and vertical muscle in post, extend the service life of pillar, improve durability.
The effect of contraction of twin-core makes core space high-strength concrete be in three dimension stress state, make strength of high strength concrete it is high,
Deform the excellent properties such as strong small, stability, anti-permeability performance and excellent in durability preferably to be played, improve well high-strength
The defect such as Brittleness of Concrete is big, ductility is poor, greatly improves the bearing capacity of post.
The high-strength concrete column for setting inner core and outer core in the utility model has very high bearing capacity, in structure design
In, also require that down, the sectional dimension of cylinder can be substantially reduced and the safety stock of structure is improved, in being Anti-Seismic Region special construction
Primary choosing.
Content of the present utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion taken technical solutions of the utility model, are claim institute of the present utility model
Cover.
Claims (4)
1. a kind of Reinforced Concrete Double repeats gynostemium, it is characterised in that：
Including concrete column（1）, concrete column（1）Inside it is provided with and concrete column（1）Coaxial outer core and inner core；
Outer core includes outer core stirrup（4）, and in outer core stirrup（4）The outer core of inside and outside alternately fixation indulges muscle（5）；
Inner core includes inner core stirrup（6）And inner core stirrup（6）The inner core of inner side indulges muscle（7）；
The outer ring of outer core is provided with concrete column（1）Peripheral stirrup（2）, peripheral stirrup（2）Inner side is provided with the vertical muscle in periphery
（3）.
2. a kind of Reinforced Concrete Double according to claim 1 repeats gynostemium, it is characterised in that：
Concrete column（1）Shape of cross section be N sides shape or circle, wherein N >=4；
Peripheral stirrup（2）The shape of cross section and concrete column of the tubular structure of formation（1）It is identical.
3. a kind of Reinforced Concrete Double according to claim 1 repeats gynostemium, it is characterised in that：
Outer core stirrup（4）With inner core stirrup（6）The shape of cross section of the tubular structure of formation is N sides shape or circle, wherein N >=4.
4. a kind of Reinforced Concrete Double according to claim 1 repeats gynostemium, it is characterised in that：
Peripheral stirrup（2）For closed stirrups or tie hoop, using many limb hoop formulas.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760210A (en) * | 2017-01-10 | 2017-05-31 | 中铁第勘察设计院集团有限公司 | Reinforced Concrete Double repeats gynostemium and its construction method |
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- 2017-01-10 CN CN201720022501.9U patent/CN206438678U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760210A (en) * | 2017-01-10 | 2017-05-31 | 中铁第勘察设计院集团有限公司 | Reinforced Concrete Double repeats gynostemium and its construction method |
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