CN205894731U - Reinforced structure of construction joint among reinforced concrete structure - Google Patents
Reinforced structure of construction joint among reinforced concrete structure Download PDFInfo
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- CN205894731U CN205894731U CN201620656600.8U CN201620656600U CN205894731U CN 205894731 U CN205894731 U CN 205894731U CN 201620656600 U CN201620656600 U CN 201620656600U CN 205894731 U CN205894731 U CN 205894731U
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Abstract
The utility model discloses a reinforced structure of construction joint among reinforced concrete structure, reinforced concrete structure includes cableway, stirrup, tension bar, tension bar and cableway depend on the inboard of stirrup and with it the ligature be in the same place, the diagonal bar reinforced structure includes that at least one passes the vertical planar diagonal bar in construction joint place, and weld respectively in setting up in the tension bar of bottom, setting up in the cableway at top at the bottom of diagonal bar, top, and the diagonal bar is 45 or 60 with the contained angle of tension bar. The utility model discloses a reinforced structure of construction joint among reinforced concrete structure safe and reliable, construction convenience have improved reinforced concrete structure's the intensity and the bearing capacity that shears, have guaranteed reinforced concrete structure's stability and security.
Description
Technical field
This utility model is related to a kind of ruggedized construction of construction joint in reinforced concrete structure, belongs to reinforced concrete structure
Field of reinforcement.
Background technology
In concreting process, because design requirement or construction need segmentation to pour, and formerly, the concrete of after-pouring
Between the seam that formed be construction joint.Construction joint is not the seam of necessary being, but in priority pouring concrete junction
The weak disease face being formed, its presence can reduce the tension of concrete sample, shearing resistance, cracking resistance, the performance such as impervious.Ordinary circumstance
Under, the concrete of a construction section answers continuous placing to ensure the globality of xoncrete structure, but if pouring area is excessive, or
When special construction operation, such as half adverse construction method mode is it is possible to form construction joint.Though existing job specfication is to applying
Indwelling position of work seam etc. is made that regulation it is desirable to construction joint should be retained in by the less position of shearing as far as possible, but work progress
In unavoidable exist interim change design drawing, meet with the emergency situations such as extreme weather, construction joint may be forced indwelling in the end of beam
Portion etc. is subject to the larger position of shearing.If dealt with improperly, will result in very great potential safety hazard, therefore, by effective measures
Construction joint is carried out with reinforcing is very necessary.
Utility model content
The purpose of this utility model is for the problems referred to above and difficult point, overcomes in prior art because construction joint indwelling is improper
The problem that the structure tension brought, shearing strength decline.
To achieve these goals, this utility model provides a kind of ruggedized construction of construction joint in reinforced concrete structure,
Described reinforced concrete structure includes cableway, stirrup and tension reinforcement, and described tension reinforcement and cableway depend on hoop
Together, described ruggedized construction includes at least one and passes through the oblique of construction joint place perpendicular for the inner side of muscle therewith colligation
Muscle, the bottom of diagonal bar, top are respectively welded in being arranged at the tension reinforcement of bottom, be arranged at the cableway at top, diagonal bar with
The angle of tension reinforcement is 45 ° or 60 °.
By being arranged through the diagonal bar of construction joint place perpendicular, then the structure of construction joint both sides is passed through diagonal bar and tiltedly
The concrete pouring on muscle links together, and strengthens the intensity of ruggedized construction of the present utility model, improves its shear resistant capacity,
Avoiding may the potential safety hazard that is occurred by the larger position of shearing in the end etc. of beam of indwelling because of construction joint.Practice of construction process
In, can diagonal bar be set before concreting, have poured the structure completing simultaneously for concrete, also can pass through bar planting
Mode diagonal bar is set, realize to the reinforcing pouring the structure completing.Diagonal bar welded top is in the erection on framework of steel reinforcement top
On reinforcing bar, diagonal bar bottom welding is on the tension reinforcement of framework of steel reinforcement bottom.Due to being configured with tension reinforcement at construction joint, increase
Add the abdomen muscle ratio of reinforcement at this, thus the diameter of diagonal bar will determine according to force analysis at construction joint.By 45 ° of the inclination angle of diagonal bar or
60 °, be conducive to the operation in engineering.
Further, described stirrup is closed stirrup, is to stirrup in the range of d in the left and right sides length of construction joint
It is encrypted, wherein the value of d is 150-250 millimeter.By arranging encryption stirrup, Ke Yijin in construction joint left and right sides position
One step strengthens the intensity of ruggedized construction of the present utility model, improves the shear resistant capacity of structure further.
Further, in described reinforced concrete structure, the ruggedized construction of construction joint is additionally included in and is arranged in horizontal direction
The horizontal reinforcement on stirrup after being encrypted, described horizontal reinforcement is welded on described stirrup, described horizontal reinforcement with described
Stirrup constitutes network structure.The network structure that horizontal reinforcement and described stirrup are formed has preferable strength and stability, can
To further enhance the intensity of ruggedized construction of the present utility model, improve the shear resistant capacity of structure further.
Further, in described reinforced concrete structure, the ruggedized construction of construction joint includes two diagonal bars be arrangeding in parallel.
Setting two diagonal bars being parallel to each other, compared to a diagonal bar is only set it is also possible to improve structure shear resistant capacity.
Further, described tension reinforcement, diagonal bar are high tensile reinforcement, and described cableway and stirrup are high tensile reinforcement or general
Logical reinforcing bar, described high tensile reinforcement is yield strength 500mpa and above reinforcing bar.In ruggedized construction of the present utility model, due to
Tension reinforcement and diagonal bar stress are larger, and therefore tension reinforcement and diagonal bar adopt high tensile reinforcement.Simultaneously as cableway and stirrup
Stress is less, and therefore cableway and stirrup can adopt high tensile reinforcement or regular reinforcement.
This utility model has the advantages and positive effects that: construction joint in reinforced concrete structure of the present utility model
Ruggedized construction is safe and reliable, easy construction, improves the intensity of reinforced concrete structure and shear resistant capacity it is ensured that reinforcing bar
The stability of xoncrete structure and safety.
Brief description
Fig. 1 is the cross-sectional view at the construction joint of reinforced beam construction joint ruggedized construction of the present utility model；
Fig. 2 is the positive structure schematic of reinforced beam construction joint ruggedized construction of the present utility model；
Fig. 3 is that the horizontal reinforcement of reinforced beam construction joint ruggedized construction of the present utility model is arranged at the knot on stirrup
Structure schematic diagram；
Wherein: 1, cableway, 2, diagonal bar, 3, tension reinforcement, 4, stirrup, 5, construction joint, 6, horizontal reinforcement.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of making creative work
The every other embodiment being obtained, broadly falls into the scope of this utility model protection.
This utility model construction is applied to the reinforced concrete structure that all carry construction joint, mainly includes armored concrete
Beam.
Below in conjunction with the accompanying drawings this utility model is described in further details.
1st, in a kind of reinforced concrete structure construction joint ruggedized construction
As Figure 1-3, in a kind of reinforced concrete structure construction joint ruggedized construction, including the erection being arranged at top
Reinforcing bar 1, stirrup 4, the tension reinforcement 3 being arranged at bottom and two diagonal bars 2, tension reinforcement 3 and cableway 1 depend on stirrup
4 inner side together with stirrup 4 colligation, diagonal bar 2 passes through construction joint 5 place perpendicular, and the welded top of diagonal bar 2 is erecting
On reinforcing bar 1, the bottom welding of diagonal bar 2 is on tension reinforcement 3.Diagonal bar 2 is 45 ° or 60 ° with the angle of tension reinforcement 3.Stirrup 4 is adopted
With for closed stirrup, being encrypted to stirrup 4 in construction joint 5 position.Between the two ends of stirrup 4 after being encrypted
At least one horizontal reinforcement 6 is set, and horizontal reinforcement 6 constitutes network structure with stirrup 4.Can arrange before concreting tiltedly
Muscle 2, it is also possible to carry out reinforcement and strengthening to the structure of casting concrete by way of bar planting, is arranged by way of bar planting
Diagonal bar 2 and horizontal reinforcement 6.
Bar planting refers to boring on concrete, is then injected into high-strength anchoring adhesive, is inserted into diagonal bar 2 or horizontal reinforcement 6, waits
After high-strength bar planting adhesive curing, diagonal bar 2 or horizontal reinforcement 6 are integrated with concrete bonding.
Tension reinforcement 3, diagonal bar 2 adopt high tensile reinforcement, cableway 1 and stirrup 4 to adopt high tensile reinforcement or regular reinforcement, institute
Stating high tensile reinforcement is yield strength 500mpa and above reinforcing bar.
2nd, test result analysis
In test, make five reinforced beams altogether, the normal reinforced beam of respectively no construction joint be designated as la,
lb；There are construction joint and unreinforced reinforced beam lc, ld；Have construction joint and arrange the ruggedized construction of the present invention reinforcing bar mix
Solidifying soil beam le.
The test datas such as reinforced beam experimental data cracking load are listed in table 1.As shown in table 1, this test is main
Investigate anti-shear ability.Typically require construction joint should be retained in by the less position of shearing as far as possible, but difficult in work progress
Exempt to exist interim change design drawing, meet with the emergency situations such as extreme weather, construction joint may be forced indwelling in the end etc. of beam
By the larger position of shearing.
In construction joint 5 cracking load result, la, lb, lc, ld cracking load is almost consistent；In addition, can by experimental result
Know, the cracking load of the reinforced beam le of ruggedized construction of the setting present invention improves more than 10%, therefore setting diagonal bar 2 is right
In the effect is significant improving shear resistant capacity.The Cracks of reinforced beam are to be reached capacity due to cutting area's concrete
Tensile strength, the effect of the stirrup 4 being encrypted is mainly suppression construction joint 5 after concrete cracking and continues to launch；Diagonal bar 2 exists
Before concrete cracking together with concrete tension, the stiffening effect to cracking load is also normal.
Table 1 reinforced beam experimental data
| Test specimen is numbered | Cracking load/kn |
| la | 39.2 |
| lb | 38.3 |
| lc | 39.5 |
| ld | 38.2 |
| le | 48.0 |
Above test proves that the ruggedized construction of construction joint in reinforced concrete structure of the present utility model is not only substantially better than
There are construction joint and unreinforced reinforced beam, be also significantly better than the normal reinforced beam of no construction joint, significantly improve
The tension of reinforced concrete structure, shear behavior, speed of application is fast, low cost, and effect is good.
Above embodiment of the present utility model is described in detail, but described content has been only of the present utility model preferable
Embodiment is it is impossible to be considered the practical range for limiting the present invention.All impartial changes made according to this utility model scope with
Improve etc., all should still belong within this patent covering scope.
Claims (5)
1. in a kind of reinforced concrete structure construction joint ruggedized construction, described reinforced concrete structure includes being arranged at top
Cableway (1), stirrup (4) and the tension reinforcement (3) being arranged at bottom, described tension reinforcement (3) and cableway (1) depend on
In stirrup (4) inner side and together with stirrup (4) colligation it is characterised in that: construction joint in described reinforced concrete structure
Ruggedized construction includes the diagonal bar (2) that at least one passes through construction joint (5) place perpendicular, and the bottom of diagonal bar (2), top are respectively
Be welded in tension reinforcement (3), on cableway (1), diagonal bar (2) is 45 ° or 60 ° with the angle of tension reinforcement (3).
2. in reinforced concrete structure according to claim 1 construction joint ruggedized construction it is characterised in that: described stirrup
(4) it is closed stirrup, be in the range of d stirrup (4) to be encrypted in the left and right sides length of construction joint (5), wherein d
Value is 150-250 millimeter.
3. in reinforced concrete structure according to claim 2 construction joint ruggedized construction it is characterised in that: be additionally included in
Horizontal reinforcement (6) on stirrup after being encrypted (4) is arranged on horizontal direction, described horizontal reinforcement (6) is welded in described
On stirrup (4), described horizontal reinforcement (6) constitutes network structure with described stirrup (4).
4. in reinforced concrete structure according to claim 1 construction joint ruggedized construction it is characterised in that: described reinforcing bar
In xoncrete structure, the ruggedized construction of construction joint includes two diagonal bars be arrangeding in parallel (2).
5. in reinforced concrete structure according to claim 1 construction joint ruggedized construction it is characterised in that: described tension
Reinforcing bar (3), diagonal bar (2) are high tensile reinforcement, and described cableway (1) and stirrup (4) are high tensile reinforcement or regular reinforcement, described height
Strong reinforcing bar is yield strength 500mpa and above reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620656600.8U CN205894731U (en) | 2016-06-28 | 2016-06-28 | Reinforced structure of construction joint among reinforced concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620656600.8U CN205894731U (en) | 2016-06-28 | 2016-06-28 | Reinforced structure of construction joint among reinforced concrete structure |
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| Publication Number | Publication Date |
|---|---|
| CN205894731U true CN205894731U (en) | 2017-01-18 |
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| CN201620656600.8U Active CN205894731U (en) | 2016-06-28 | 2016-06-28 | Reinforced structure of construction joint among reinforced concrete structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952183A (en) * | 2016-06-28 | 2016-09-21 | 中铁建设集团有限公司 | Reinforcing structure and reinforcing method of construction joint in reinforced concrete structure |
-
2016
- 2016-06-28 CN CN201620656600.8U patent/CN205894731U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952183A (en) * | 2016-06-28 | 2016-09-21 | 中铁建设集团有限公司 | Reinforcing structure and reinforcing method of construction joint in reinforced concrete structure |
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