CN109356287A - The cylindrical cap node and manufacturing process of one Zhu Duo beam intersection of concrete - Google Patents
The cylindrical cap node and manufacturing process of one Zhu Duo beam intersection of concrete Download PDFInfo
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- CN109356287A CN109356287A CN201811323022.6A CN201811323022A CN109356287A CN 109356287 A CN109356287 A CN 109356287A CN 201811323022 A CN201811323022 A CN 201811323022A CN 109356287 A CN109356287 A CN 109356287A
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- ring muscle
- cylindrical cap
- cap node
- column
- muscle
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 210000003205 muscle Anatomy 0.000 claims abstract description 73
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 26
- 238000009826 distribution Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 4
- 238000003491 array Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a kind of manufacturing process of the cylindrical cap node of one Zhu Duo beam intersection of concrete, comprising the following steps: 1) is laid with cylindrical cap node template；2) the U-shaped stirrup of equidistantly distributed cylindrical in template, and it positions, bottom surface ring muscle, side ring muscle and top ring muscle are successively bound in the inner bottom surface of U-shaped stirrup, interior sidewall surface and inner top surface, make bottom surface ring muscle, top ring muscle in concentric circles and distribution at equal intervals, the distribution of side ring muscle also equally is fixed, and cylindrical cap node is formed；3) reinforcing bar of column is formed directly into cylindrical cap node, and it is located within most inner side bottom surface ring muscle and top ring muscle, the vertical muscle of multiple crossbeams is anchored into the bolumn cap node again, the concrete of bolumn cap node region is finally poured in the while parallel joint stirrup of binding and column along column in the crossbeam that two intersect.
Description
Technical field
The invention belongs to building fields, cross specifically, being related to the more beams of a column (five beams or more) in a kind of building
The cylindrical cap node and its manufacturing process at place.
Background technique
Contemporary Architecture design becomes increasingly complex, especially large scale business, and large stadium, it is more that exhibition room etc. often will appear a column
The case where beam (five beams or more) crosses.And the structure and manufacturing process of a Zhu Duo beam intersection node are that these complex buildings are anti-
Whether very important component part in shake design, design rationally will affect the safety and stabilization of whole building.Such as
The one of main problem in the building that Hualian County, Taiwan Province, China is collapsed just goes out the beam column in bottom frame-supporting column and crosses node, when construction
Beam steel is not anchored in the column heart and anchorage length is insufficient, and core space reinforcing bar is overstocked to lead to concrete placings leakiness.Therefore a column is more
The node of beam intersection is the weak link of frame structure, is that multiple position is destroyed in earthquake, it is necessary to this key position beam
Enough attention are given in the design of Column border node.
Currently, the more beams of one column of concrete (five beams or more) column beam joint node technology, when crossbeam 11 and column 10 bias oblique
When vertical muscle 8 anchor length in column 10 and be easy to be unsatisfactory for code requirement, it may be necessary to horizontal buckling is vertically bent again, full to ensure
Sufficient anchorage length requirement, as shown in figure 4, so operation posterior nodal point region inner beam, column reinforcing bar are intensive, and vertical 8 horizontal buckling of muscle is again
Longitudinal bending construction is extremely difficult；Such as: it need to be entered in column 10 with the vertical muscle 8 of the Vierendeel girder (crossbeam) of column oblique, it is practical
It is difficult binding in 10 joint cores of column to implement, node concrete placings are also not easy closely knit；10 top of column is due to oblique beam
Vertical muscle and stirrup overlapping are placed, and beam section effective height reduces, and is difficult to meet the requirement of safe design.
Summary of the invention
The purpose of the present invention is to provide a kind of one Zhu Duo beam intersection cylindrical cap node of concrete and manufacturing process, can be to one
Zhu Duo beam intersection is reinforced, and the constructional difficulties that biasing oblique node is indulged muscle anchoring horizontal buckling or vertically bent again are solved,
Crossbeam indulges the problem of the horizontal anchorage length deficiency of muscle.
The manufacturing process of the cylindrical cap node of one Zhu Duo beam intersection of concrete in the present invention, comprising the following steps:
1) it is laid with cylindrical cap node template；
2) the U-shaped stirrup of equidistantly distributed cylindrical in template, and position, inner bottom surface, inner sidewall in U-shaped stirrup
Face and inner top surface successively bind bottom surface ring muscle, side ring muscle and top ring muscle, make bottom surface ring muscle, top ring muscle in concentric circles and wait
The distribution of spacing, the distribution of side ring muscle also equally are fixed, and cylindrical cap node is formed；
3) reinforcing bar of column is formed directly into cylindrical cap node, and is located within most inner side bottom surface ring muscle and top ring muscle,
The vertical muscle of multiple crossbeams is anchored into the bolumn cap node again, along the binding of the side of column and column in the crossbeam that two intersect
The parallel joint stirrup in side, finally pours the concrete of bolumn cap node region.
The bottom surface ring muscle and top ring muscle are three, in equidistantly sequentially arranging after concentric arrays.
The diameter of the smallest bottom surface ring muscle of diameter and the top ring muscle is greater than the side length or diameter of the column.
The opening of the U-shaped stirrup is arranged towards the direction of the cylindrical cap node cylinder axis.
The outer diameter for the cylindrical cap node that the U-shaped stirrup surrounds is twice of the column side length.
The cylindrical cap node of one Zhu Duo beam intersection of concrete includes more U-shaped reinforcing bars in the present invention, the U shape reinforcing bar
The mode being open towards center is evenly distributed in a ring, is fixedly connected in the inner top for the circular column that the U-shaped reinforcing bar surrounds
More top ring muscle, the fixed more foundation face ring muscle in interior bottom, are fixedly connected with more sides in the interior sidewall surface of the circular column
Ring muscle forms a cylindrical cap node.
The top ring muscle is three, fixes and connects with the inner top surface of the U-shaped reinforcing bar after concentric circles distribution equally
It connects, the bottom surface ring muscle is three, is fixedly connected after concentric circles distribution equally with the inner bottom surface of the U-shaped reinforcing bar.
The side ring muscle is the identical ring muscle of three diameters, is fixedly connected on the inside of the U-shaped reinforcing bar at equal intervals
Wall surface.
Cylindrical cap node and manufacturing process in the present invention, which solve stirrup between column and oblique crossbeam, need to enter column
Inside it is difficult to the problem of constructing；It is solved at the top of column simultaneously since two oblique beams indulge muscle and stirrup overlapping is placed, crossbeam is caused to cut
Face effective height reduces, and is difficult the problem of meeting design safety requirement in practice, realizes the good result of Seismic Resistance And Disaster Reduction.
Detailed description of the invention
Fig. 1 is the schematic top plan view of a Zhu Duo beam intersection cylindrical cap node in the present invention.
Fig. 2 is the schematic side view of a Zhu Duo beam intersection cylindrical cap node in the present invention.
Fig. 3 is the schematic cross-sectional view in Fig. 1 along line A-A.
Fig. 4 is the structural schematic diagram of existing Zhu Duo beam intersection node.
Fig. 5 is structural schematic diagram when two oblique beams intersect with column on one side in the present invention.
Fig. 6 is structural schematic diagram when two oblique beams intersect with two sides of column in the present invention.
Fig. 7 is a structural schematic diagram when oblique beam and beam side different with column are intersected in the present invention.
Specific embodiment
It elaborates below in conjunction with attached drawing to the specific embodiment in the present invention.
As depicted in figs. 1 and 2, the present invention in concrete (armored concrete) Zhu Duo beam intersection cylindrical cap node, one
The more beams of column are at least used in the case where a root post 10 is intersected with five or five with upper beam 11, and cylindrical cap node is not having
Have before casting in hollow cylindric, including more U-shaped reinforcing bars 4, the U-shaped reinforcing bar 4 is in opening 5 towards cylindrical cap node axis side
To making, annular is evenly distributed, and the present embodiment is by taking 17 U-shaped reinforcing bars 4 as an example, as shown in Figure 1, opening 5 is uniform towards axis direction
Ground is distributed back wall into a circular column in a ring.The particular number of U-shaped reinforcing bar 4 is not limited to this, can between 10 and 20,
Depending on the intensity of cylindrical cap node.3 top ring muscle are fixedly connected in the inner top surface for the circular column that U-shaped reinforcing bar 4 surrounds
1, inner bottom surface is fixedly connected with 3 foundation face ring muscle 2, and 3 side ring muscle 3 are fixedly connected in the interior sidewall surface of circular column.Its
In 3 top ring muscle 1 equally concentric circles distribution, 3 foundation face ring muscle 2 also equally concentric circles distribution.By means of
17 U-shaped reinforcing bars 4 are surrounded a firm cylindrical cap node by top ring muscle 1, bottom surface ring muscle 2 and side ring muscle 3.
The basal diameter of the cylindrical cap node is 1.5 to 2 times of 10 side length of column or diameter, the highly height than crossbeam 11
It is 180-200 millimeters high, and the top ring muscle 1 of most inner side (diameter is minimum) and 2 diameter of bottom surface ring muscle are more than or equal to the side of column 10
Long or diameter, and the top ring muscle 1 of most inner side (diameter is minimum) is equal with the diameter of bottom surface ring muscle 2.So when in use, it stands
The column reinforcing bar 9 of column 10 can be formed directly into cylindrical cap intra-node, have the advantages that convenient and inner space is sufficiently large.Simultaneously
The vertical muscle 8 of crossbeam 11 can also be formed directly into cylindrical cap node, so that beam is indulged when muscle 8 anchors in column 10 with enough
Anchorage length, without making any bending process, and it is overstocked and lead to concrete in cylindrical cap joint cores also not occur reinforcing bar entirely
Pour uncompacted situation.
In using the present invention after cylindrical cap node, there are following situations for the intersection of crossbeam 11 and column 10, according to not
It will be reinforced according to distinct methods with situation, specific as follows:
As shown in figure 5, the crossbeam 11 of two obliques penetrates circle when on one side intersection of two oblique beams 11 with column 10
After bolumn cap node, the while 12 parallel joint stirrups 7 with column 10 need to be set in the cylindrical cap node except of column 10,
For reinforcing two crossbeams 11.The length of joint stirrup 7, maximum spacing and minimum diameter should meet skyscraper concrete structure technology rule
Journey JGJ3-2010 table 6.3.2-2.And according to Code for design of concrete structures 6.4.12 in moment of flexure, shearing and torque collective effect
Under rectangle, T tee section bending and twisting component, can by following regulation carry out bearing capacity calculation:
I.e. when T (torsional capacity) is not more than 0.175 ɑ hftWt no more than 0.175ftWt or T, can only it check by curved structure
The flexure bearing capacity and Shear bearing capacity of part.
Since the sectional dimension of cylindrical cap node in the application is much larger than beam section, meet above-mentioned requirements, so only checking
The flexure bearing capacity and Shear bearing capacity of flexural member consider.Wherein the checking computations of shear resistance capacity are specific
It is as follows:
By Code for design of concrete structures V (shear resistance capacity)
V≤Vcs+Vp(6.3.4-1)；(1)
Vp=0.05Np0(6.3.4-3)；(3)
It can derive the stirrup value of joint stirrup 7.
But since two oblique beams 11 are with the intersection on one side of column 10, above-mentioned formula (2) middle cross beam width b cannot be direct
Using crossbeam degree, equivalent beam section width need to be used, calculates gained by following formula (4):
Wherein: Y is the height of two 11 overlapping positions of oblique beam；
ɑ is the angle of the first oblique beam Yu column axis；
β is the angle of the second oblique beam Yu column axis；
B1 is the width of the first oblique beam,
B2 is the width of the second oblique beam.
Shear resistance capacity design value V takes under same operating shearing and maximum value in two obliques.And it further calculates and takes
The diameter of the joint stirrup 7 obtained should be not less than the diameter of stirrup maximum in oblique crossbeam 11, to guarantee safety.
As shown in fig. 6, only existing when two oblique beams 11 and 10 intersection of column be not on a side 12 of column 10
The 10 oblique crossbeam 11 of outside two of column is overlapped end and the joint stirrup 7 parallel with the side 12 of column 10 is arranged, and joint is bound round
The value mode of muscle 7 is identical as aforesaid way, and equivalent beam section width b length as shown in Figure 6, can also be counted by formula (4)
Calculate gained.
As shown in fig. 7, intersect not on a side with column 10 when an oblique beam 11, i.e., with two sides of column 10
The joint parallel with the side 12 of column 10 is arranged in the end that is overlapped of 10 outside oblique crossbeam 11 of column and orthogonal crossbeam in 12 intersections
Stirrup 7, as shown in Figure 7, calculation method is obtained by formula (4), and β value is 0 in formula for equivalent beam section width b length.
According to upper type, combining 7 value of stirrup has calculation basis, it is ensured that safety, the joint setting of stirrup 7 is vertical
Outside column, facilitate construction, avoids oblique crossbeam stirrup and enter in column 10, can not actually implement to bind, concrete placings are difficult closely knit
The problems such as.
After cylindrical cap node is formed, makees live formwork binding, poured after node, by crossbeam 11 and the reliable earth anchor of column 10
Gu together, guaranteeing the feasibility of construction, joints are reasonable, quake-resistant safety.,
In conclusion the cylindrical cap node in the present invention can anchor to crossbeam in the cylindrical cap node at the top of column,
Anchorage length needed for crossbeam indulges muscle 8 is readily satisfied, and no longer needs vertically to bend, more construction feasibility, is easily guaranteed that matter
Amount.
Cylindrical cap node in the present invention increases anti-earthquake ductility, improves node area bending resistance shear resistance.
Cylindrical cap node in the present invention is able to satisfy rigid joint requirement, parallel with column side by being arranged outside stud edge
Joint stirrup, and joint stirrup value has calculation basis, it is ensured that safety is arranged outside column, facilitates construction, effectively avoid
The vertical muscle of oblique crossbeam enters in column, can not actually implement to bind, concrete placings are difficult the problems such as closely knit.
Claims (8)
1. a kind of manufacturing process of the cylindrical cap node of one Zhu Duo beam intersection of concrete, comprising the following steps:
1) it is laid with cylindrical cap node template；
2) the U-shaped stirrup of equidistantly distributed cylindrical in template, and positioning, the inner bottom surface of U-shaped stirrup, interior sidewall surface and
Inner top surface successively binds bottom surface ring muscle, side ring muscle and top ring muscle, makes bottom surface ring muscle, top ring muscle in concentric circles and equidistant
Distribution, the distribution of side ring muscle also equally fixes, and forms cylindrical cap node；
3) reinforcing bar of column is formed directly into cylindrical cap node, and be located within most inner side bottom surface ring muscle and top ring muscle, then will
The vertical muscle of multiple crossbeams anchors into the bolumn cap node, in the crossbeam that two intersect along column while binding and column while put down
Capable joint stirrup, finally pours the concrete of bolumn cap node region.
2. the manufacturing process of the cylindrical cap node of one Zhu Duo beam intersection of concrete according to claim 1, which is characterized in that institute
It states bottom surface ring muscle and top ring muscle is three, in equidistantly sequentially being arranged after concentric arrays.
3. the manufacturing process of the cylindrical cap node of one Zhu Duo beam intersection of concrete according to claim 2, which is characterized in that straight
The diameter of the smallest bottom surface ring muscle of diameter and the top ring muscle is greater than the side length or diameter of the column.
4. the manufacturing process of the cylindrical cap node of one Zhu Duo beam intersection of concrete according to claim 2, which is characterized in that institute
The opening for stating U-shaped stirrup is arranged towards the direction of the cylindrical cap node cylinder axis.
5. the manufacturing process of the cylindrical cap node of one Zhu Duo beam intersection of concrete according to claim 2, which is characterized in that institute
The outer diameter for stating the cylindrical cap node that U-shaped stirrup surrounds is twice of the column side length.
6. a kind of cylindrical cap node for any one of the claims 1-5 the method, which is characterized in that include
The mode of more U-shaped reinforcing bars, opening towards the center of the U-shaped reinforcing bar is evenly distributed in a ring, surrounds in the U-shaped reinforcing bar
The inner top of circular column be fixedly connected with more top ring muscle, the fixed more foundation face ring muscle in interior bottom, in the circular column
It is fixedly connected with more side ring muscle in side wall surface, forms a cylindrical cap node.
7. cylindrical cap node according to claim 6, which is characterized in that the top ring muscle is three, equally
It is fixedly connected after concentric circles distribution with the inner top surface of the U-shaped reinforcing bar, the bottom surface ring muscle is three, concentric circles equally
It is fixedly connected after distribution with the inner bottom surface of the U-shaped reinforcing bar.
8. cylindrical cap node according to claim 6, which is characterized in that the side ring muscle is the identical ring of three diameters
Muscle is fixedly connected on the interior sidewall surface of the U-shaped reinforcing bar at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811323022.6A CN109356287B (en) | 2018-11-08 | 2018-11-08 | Cylindrical cap node at intersection of one column and multiple beams of concrete and forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811323022.6A CN109356287B (en) | 2018-11-08 | 2018-11-08 | Cylindrical cap node at intersection of one column and multiple beams of concrete and forming method |
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| Publication Number | Publication Date |
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| CN109356287A true CN109356287A (en) | 2019-02-19 |
| CN109356287B CN109356287B (en) | 2024-06-07 |
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| CN201811323022.6A Active CN109356287B (en) | 2018-11-08 | 2018-11-08 | Cylindrical cap node at intersection of one column and multiple beams of concrete and forming method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113293928A (en) * | 2021-05-25 | 2021-08-24 | 中铁第五勘察设计院集团有限公司 | Oblique crossing beam structure and building applying same |
| CN114197770A (en) * | 2021-12-27 | 2022-03-18 | 中冶城市投资控股有限公司 | Building structure |
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| CN113293928A (en) * | 2021-05-25 | 2021-08-24 | 中铁第五勘察设计院集团有限公司 | Oblique crossing beam structure and building applying same |
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| CN114197770B (en) * | 2021-12-27 | 2023-11-21 | 中冶城市投资控股有限公司 | Building structure |
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| CN109356287B (en) | 2024-06-07 |
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