CN107268783A - A kind of existing reinforced concrete post and newly-increased reinforced beam node connecting structure - Google Patents
A kind of existing reinforced concrete post and newly-increased reinforced beam node connecting structure Download PDFInfo
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- CN107268783A CN107268783A CN201710519349.XA CN201710519349A CN107268783A CN 107268783 A CN107268783 A CN 107268783A CN 201710519349 A CN201710519349 A CN 201710519349A CN 107268783 A CN107268783 A CN 107268783A
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- 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
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
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- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of existing reinforced concrete post and newly-increased reinforced beam node connecting structure, including existing reinforced concrete post, newly-increased reinforced beam, L-type steel plate and fixed component, L-type steel plate is divided into, it is lower two groups, every group of L-type steel plate enclose include existing reinforced concrete post formation enclose structure, shaft of the web of every group of L-type steel plate along existing reinforced concrete post is fixed thereon by fixed component, on, indulge the vertical muscle of muscle and bottom in the top that the wing plate of lower two groups of L-type steel plates corresponds respectively to newly-increased reinforced beam, and the wing plate of two groups of L-type steel plates indulges muscle with corresponding top respectively and bottom is indulged muscle and is connected.The Path of Force Transfer of the invention that traditional bar planting mode is changed compared with traditional bar planting mode, the area and depth of implantation fixed component needed for reducing, alleviates the destruction to reinforced column；Every group of L-type steel plate produces confinement effect to reinforced column, makes to form three dimension stress state at newly-increased node, strengthens joints.
Description
Technical field
The present invention relates to a kind of existing reinforced concrete post and newly-increased reinforced beam node connecting structure.
Background technology
With continuing to develop for Building Trade in China, the storage of building is continued to increase, and the strengthening reconstruction of existing building is needed
Ask also more and more, wherein, increased newly on existed concrete bridge post during reinforced beam is existing building strengthening and rebuilding engineering
One important strengthening reconstruction method.
At present, use bar planting mode newly-increased reinforced beam on existing reinforced concrete post, which is specifically more
Existing reinforced concrete post will be implanted into as the reinforcing bar of the vertical muscle of newly-increased reinforced beam.
Above-mentioned bar planting mode has following defect：
(1) reinforcing bar is implanted on reinforced column, it is necessary to be drilled on reinforced column, the area of reinforcing bar implantation is big
And it is relatively deep, and implantation reinforcing bar is larger to the pulling capacity of reinforced column, therefore existing reinforced concrete post can be caused brokenly
It is bad.
(2) when the low strength of existing reinforced concrete post, the length and spacing of reinforcing bar implantation be difficult to meet node by
Power requirement.
The content of the invention
It is an object of the invention to provide a kind of simple in construction, cost it is low, mitigate to the destruction of existing reinforced concrete post, carry
The existing reinforced concrete post of high bearing capacity and newly-increased reinforced beam node connecting structure.
The present invention can be realized by following measures：A kind of existing reinforced concrete post and newly-increased reinforced beam section
Point attachment structure, including existing reinforced concrete post and newly-increased reinforced beam, it is characterised in that：The existing reinforced concrete
Earth pillar and newly-increased reinforced beam node connecting structure also include L-type steel plate and fixed component, the L-type steel plate is divided into,
Lower two groups, every group of L-type steel plate, which encloses, to be included the formation of existing reinforced concrete post and encloses structure, and the web of every group of L-type steel plate was along both
The shaft for having reinforced column is fixed thereon by fixed component, and the wing plate of upper and lower two groups of L-type steel plates is corresponded respectively to newly
The top for increasing reinforced beam indulges muscle and bottom and indulges muscle, and two groups of L-type steel plates wing plate indulged respectively with corresponding top muscle and
Indulge muscle and be connected in bottom.
The Path of Force Transfer of the invention that traditional bar planting mode is changed compared with traditional bar planting mode, increases reinforced concrete newly
The pulling force of native beam steel is mainly transmitted by L-type steel plate；Newly-increased reinforced beam is main to the shearing of existing reinforced concrete post
Transmitted by fixed component, the area and depth of implantation fixed component needed for reducing are alleviated to existing reinforced concrete post
Destroy, and every group of L-type steel plate of the invention four sides is enclosed, and confinement effect is produced to reinforced column, makes existing reinforced concrete
Earth pillar, which is increased newly, forms three dimension stress state at node, strengthen joints, and the design for meeting this area " the strong weak component of node " will
Ask.
The following group L-type steel plate of the present invention is set to be upright, and upper group of L-type steel plate is set to stand upside down.
As a kind of preferred embodiment of the present invention, the existing reinforced concrete post is square column, every group of L-type steel plate
Mainly it is made up of the short a pair L-type steel plate of thickness identical and long a pair L-type steel plate, the wing plate of the short L-type steel plate and web
Length is identical with the post edge lengths of existing reinforced concrete post, and the web length of the long L-type steel plate is existing reinforced concrete
The thickness sum of the post edge lengths of earth pillar and twice of L-type steel plate, and the wing plate length of the long L-type steel plate is long L-type steel plate
Web length and twice of short L-type steel plate wing plate width sum, two short L-type steel plate is oppositely arranged, and two long L-types
Steel plate is oppositely arranged, the end sides welding of the end face of the wing plate of adjacent short L-type steel plate and the wing plate of long L-type steel plate, and adjacent
The end plate face welding of the web of the end face of the web of short L-type steel plate and long L-type steel plate.
It is used as one embodiment of the present invention, the node of the existing reinforced concrete post and newly-increased reinforced beam
It is in-line, the wing plate of the long L-type steel plate of two groups of L-type steel plates is indulged with the top of corresponding newly-increased reinforced beam respectively
Muscle is indulged muscle with bottom and is connected.Because the tensile strength of welded steel is more than shearing strength, therefore, when existing reinforced concrete post pair
When the both sides of title need newly-increased reinforced beam, should be arranged in long L-type steel plate needs the two of newly-increased reinforced beam
Side, and short L-type steel plate, which is arranged in, need not increase the both sides of armored concrete newly.
It is used as another embodiment of the invention, the section of the existing reinforced concrete post and newly-increased reinforced beam
Point is cross, and the long L-type steel plate of two groups of L-type steel plates is located at two larger sides of existing reinforced concrete post stress,
And short L-type steel plate is located at the wing plate of less two sides of existing reinforced concrete post stress, long L-type steel plate and short L-type steel plate
Muscle is indulged with the top of corresponding newly-increased reinforced beam respectively and bottom is indulged muscle and is connected.Because the tensile strength of welded steel is big
, therefore, should be by length when four sides of existing reinforced concrete post are required to increase reinforced beam in shearing strength
L-type steel plate is arranged in the larger symmetrical both sides of existing reinforced concrete post stress, and short L-type steel plate is arranged in into existing coagulation
The less symmetrical both sides of earth pillar stress.
As a kind of preferred embodiment of the present invention, the wing plate and web of adjacent short L-type steel plate and long L-type steel plate are adopted
Welded with groove welding.
As a kind of preferred embodiment of the present invention, the fixed component uses chemical bolt and pad, the L-type steel
Be provided with hole on the web of plate, the chemical bolt through stretch into after pad and hole in existing reinforced concrete post and by L-type
Steel plate is anchored thereon.
As a kind of preferred embodiment of the present invention, the L-type steel plate, which is prefabricated in the factory, to be formed, and described hole is in work
Reserved open up of factory forms, and the size and number of hole is chosen according to actual conditions.
The top of newly-increased reinforced beam of the present invention indulge muscle be welded on group L-type steel plate wing plate upper face or
On lower face, and the bottom of the newly-increased reinforced beam indulge muscle be welded on the upper face of the wing plate of the following group L-type steel plate or under
In plate face.
Compared with prior art, the present invention has following significant effect：
(1) the Path of Force Transfer of the invention that traditional bar planting mode is changed compared with traditional bar planting mode, increases reinforcing bar newly and mixes
The pulling force of solidifying soil beam steel is mainly transmitted by L-type steel plate, increases shearing master of the reinforced beam to existing reinforced concrete post newly
To be transmitted by fixed component, the area and depth of implantation fixed component needed for reducing are alleviated to existing reinforced concrete post
Destruction.
(2) every group of L-type steel plate combination four sides is enclosed, and confinement effect is produced to reinforced column, makes existing reinforced concrete
Post, which is increased newly, forms three dimension stress state at node, strengthen joints, meet the design requirement of this area " the strong weak component of node ".
(3) simple in construction, cost of the invention is low, practical, suitable for being widely popularized and being applicable.
Brief description of the drawings
The invention will be described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the dimensional structure diagram of the present invention；
Fig. 2 is short L-type steel plate and chemical bolt assembling structure explosive view；
Fig. 3 is long L-type steel plate and chemical bolt assembling structure explosive view；
Fig. 4 is that every group of L-type steel plate surrounds the cross-sectional view that the formation of existing reinforced concrete post encloses structure.
In figure, 1- existing reinforced concrete posts, 2-L shape steel plates, the short L-type steel plates of 3-, the wing plate of the short L-type steel plates of 31-, 32-
Muscle is indulged at the web of short L-type steel plate, the top that 4- increases reinforced beam newly, and 5- increases the stirrup of reinforced beam newly, and 6- is increased newly
Indulge muscle, 7- chemical bolts, the long L-type steel plates of 8-, the wing plate of the long L-type steel plates of 81-, the long L-type steel plates of 82- in the bottom of reinforced beam
Web, 9- pads, 10- holes.
Embodiment
As shown in figures 1-4, it is that a kind of existing reinforced concrete post of the invention is connected knot with newly-increased armored concrete girder connection
Structure, including existing reinforced concrete post 1, newly-increased reinforced beam, L-type steel plate 2 and fixed component, in the present embodiment, both
The cross section for having reinforced column 1 is square, and the node of existing reinforced concrete post 1 and newly-increased reinforced beam is cross
Shape, 2 points of L-type steel plate is upper and lower two groups, and the following group L-type steel plate is set to be upright, and upper group of L-type steel plate is set to stand upside down, every group of L
Shape steel plate 2, which encloses, to be included the formation of existing reinforced concrete post 1 and encloses structure, and the web of every group of L-type steel plate 2 is along existing reinforced concrete
The shaft of earth pillar 1 is fixed thereon by fixed component, and the reinforcing bar increased newly in reinforced beam is main by top vertical muscle 4, bottom
Portion indulges the stirrup 5 of muscle 6 and cuff on vertical muscle and constituted, and the wing plate of upper and lower two groups of L-type steel plates 2 corresponds respectively to newly-increased reinforcing bar and mixed
Muscle 4 is indulged at solidifying Tu Liang top and muscle 6 is indulged in bottom, and the wing plate of two groups of L-type steel plates 2 indulges muscle 4 and bottom with corresponding top respectively
Vertical muscle 6 is connected.
Every group of L-type steel plate is mainly made up of the short a pair L-type steel plate 3 of thickness identical and long a pair L-type steel plate 8, short L-type steel
The wing plate 31 of plate 3 and the length of web 32 are identical with the post edge lengths of existing reinforced concrete post 1, the web of long L-type steel plate 8
82 length is the post edge lengths of existing reinforced concrete post 1 and the thickness sum of twice of L-type steel plate, and long L-type steel plate 8
The length of wing plate 81 for long L-type steel plate 8 the length of web 82 and twice of short L-type steel plate 3 wing plate 31 width sum, it is two short
L-type steel plate 3 is oppositely arranged, and two long L-type steel plate 8 is oppositely arranged, the end face and long L-type of the wing plate 31 of adjacent short L-type steel plate 3
The end sides of the wing plate 81 of steel plate 8 are welded using groove welding, and the end face and long L of the web 32 of adjacent short L-type steel plate 3
The end plate face of the web 82 of shape steel plate 8 is welded using groove welding.
The long L-type steel plate 8 of two groups of L-type steel plates is located at larger two sides of the stress of existing reinforced concrete post 1, and short L
Shape steel plate 3 is located at the wing plate point of less two sides of the stress of existing reinforced concrete post 1, long L-type steel plate 8 and short L-type steel plate 3
Muscle 4 is not indulged with the top of corresponding newly-increased reinforced beam and bottom is indulged muscle 6 and welded.In the present embodiment, reinforcing bar is increased newly to mix
Solidifying Tu Liang top is indulged muscle 4 and is welded on the upper face of the wing plate of group L-type steel plate, and the bottom of newly-increased reinforced beam is indulged
Muscle 6 is welded on the lower face of the wing plate of the following group L-type steel plate.
In the present embodiment, fixed component uses and is provided with hole 10 on chemical bolt 7 and pad 9, the web of L-type steel plate 2,
Chemical bolt 7 stretches into existing reinforced concrete post 1 after passing through pad 9 and hole 10 and anchors L-type steel plate 2 thereon.L-type
Steel plate 2, which is prefabricated in the factory, to be formed, and hole 10 is to reserve to open up in factory, and the size and number of hole 10 is selected according to actual conditions
Take.
The construction procedure of the present invention is as follows：
Step 1: L-type steel plate is designed as into two kinds of specifications, respectively A (short L-type steel plate) and B (long L-type steel plate), specification A
Be L-type steel plate wing plate and web it is identical with post edge lengths, specification B wing plate length is equal to the specification A that post edge lengths add twice
The width of wing plate, the length of specification B webs is equal to the steel plate thickness that post edge lengths add twice, the wing of the L-type steel plate of two kinds of specifications
Plate width and thickness are determined according to the actual requirements；
The completion Step 2: L-type steel plate can be prefabricated in the factory, the web of L-type steel plate should stay hole in advance, hole it is big
Small and quantity is chosen according to actual conditions；
Step 3: the L-type steel plate of two kinds of specifications is respectively symmetrically arranged, every face arrangement same size symmetrical above and below of post
L-type steel plate, outwardly, the distance of upper bottom web outer surface adds newly-increased reinforced beam top for the position of the web of L-type steel plate
The diameter of the bar diameter of the vertical muscle of maximum and the vertical muscle of bottom maximum, additional twice of protective layer thickness is equal to newly-increased armored concrete
Depth of beam；
Step 4: according to the position of L-type steel plate holes, corresponding hole is drilled through on existed concrete bridge post：
Step 5: clearing up hole and adhesive being filled into full hole, L-type steel plate and existing reinforcing bar are mixed using chemical bolt
Solidifying earth pillar connection；
Step 6: the wing plate and web of adjacent L-type steel plate are respectively welded using groove welding, and by newly-increased armored concrete
Indulge muscle needed for beam to be welded on the wing plate of L-type steel plate, the vertical single fillet welded length of muscle needs to be indulge muscle diameter 10 times, welding by both sides
Connecing needs to be indulge muscle 5 times；
Step 7: indulging colligation stirrup on muscle in newly-increased beam, template is set.
Step 8: L-type steel plate is poured together with the reinforcing bar of newly-increased reinforced beam with concrete to form an entirety.
Step 9: form removal curing concrete.
In other embodiments, the node of existing reinforced concrete post and newly-increased reinforced beam is in-line, two groups of L
The wing plate of the long L-type steel plate of shape steel plate indulges muscle with the top of corresponding newly-increased reinforced beam respectively and bottom is indulged muscle and is connected.
The implementation of the present invention is not limited to this, according to the above of the present invention, knows according to the ordinary skill of this area
Know and customary means, under the premise of above-mentioned basic fundamental thought of the invention is not departed from, existing reinforced concrete post of the present invention also may be used
Think cylinder etc., correspondingly, L-type steel plate is fabricated to the shape being adapted with existing reinforced concrete column outer wall, so as to
Composition encloses structure；The present invention is in-line except the node suitable for existing reinforced concrete post and newly-increased reinforced beam
And cross, it can be applicable to the node of other forms；Indulge muscle and be welded on group L-type steel in the top of newly-increased reinforced beam
On the upper face or lower face of the wing plate of plate, and the wing that muscle is welded on the following group L-type steel plate is indulged in the bottom of newly-increased reinforced beam
On the upper face or lower face of plate；Fixed component can also use other parts except using chemical bolt and pad.Therefore,
The present invention can also make the modification of other diversified forms, replace or change, and all fall within the scope of the present invention.
Claims (10)
1. a kind of existing reinforced concrete post and newly-increased reinforced beam node connecting structure, including existing reinforced concrete post
With newly-increased reinforced beam, it is characterised in that：The existing reinforced concrete post is connected with newly-increased armored concrete girder connection
Structure also includes L-type steel plate and fixed component, and the L-type steel plate is divided into upper and lower two groups, and every group of L-type steel plate, which encloses, includes existing steel
The formation of reinforced concrete post encloses structure, and the shaft of the web of every group of L-type steel plate along existing reinforced concrete post passes through fixed part
Part is fixed thereon, and the wing plate of upper and lower two groups of L-type steel plates corresponds respectively to the vertical muscle in top and the bottom of newly-increased reinforced beam
Vertical muscle, and the wing plate of two groups of L-type steel plates is connected with the vertical muscle of the vertical muscle in corresponding top and bottom respectively.
2. existing reinforced concrete post according to claim 1 and newly-increased reinforced beam node connecting structure, it is special
Levy and be：The following group L-type steel plate is set to be upright, and upper group of L-type steel plate is set to stand upside down.
3. existing reinforced concrete post according to claim 2 and newly-increased reinforced beam node connecting structure, it is special
Levy and be：The cross section of the existing reinforced concrete post is square, and every group of L-type steel plate is main by short a pair L of thickness identical
Shape steel plate and long a pair L-type steel plate composition, the wing plate of the short L-type steel plate and the length of web with existing reinforced concrete post
Post edge lengths it is identical, the web length of the long L-type steel plate is the post edge lengths and twice of L-type of existing reinforced concrete post
The thickness sum of steel plate, and the wing plate length of the long L-type steel plate is the web length and twice of short L-type steel of long L-type steel plate
The width sum of the wing plate of plate, two short L-type steel plate is oppositely arranged, and two long L-type steel plate is oppositely arranged, adjacent short L-type steel
The end sides welding of the wing plate of the end face of the wing plate of plate and long L-type steel plate, and the end face and length of the web of adjacent short L-type steel plate
The end plate face welding of the web of L-type steel plate.
4. existing reinforced concrete post according to claim 3 and newly-increased reinforced beam node connecting structure, it is special
Levy and be：The node of the existing reinforced concrete post and newly-increased reinforced beam is in-line, two groups of L-type steel plates
The wing plate of long L-type steel plate indulges muscle with the top of corresponding newly-increased reinforced beam respectively and bottom is indulged muscle and is connected.
5. existing reinforced concrete post according to claim 3 and newly-increased reinforced beam node connecting structure, it is special
Levy and be：The node of the existing reinforced concrete post and newly-increased reinforced beam is cross, two groups of L-type steel plates
Long L-type steel plate is located at two larger sides of existing reinforced concrete post stress, and short L-type steel plate is located at existing reinforced concrete
The wing plate of less two sides of post stress, long L-type steel plate and short L-type steel plate respectively with corresponding newly-increased reinforced beam
Indulge muscle and be connected with the vertical muscle in bottom in top.
6. existing reinforced concrete post and newly-increased reinforced beam node connecting structure according to claim 4 or 5, its
It is characterised by：The wing plate and web of adjacent short L-type steel plate and long L-type steel plate are welded using groove welding.
7. existing reinforced concrete post according to claim 6 and newly-increased reinforced beam node connecting structure, it is special
Levy and be：Indulge the upper face or lower face that muscle is welded on the wing plate of group L-type steel plate in the top of the newly-increased reinforced beam
On, and the bottom of the newly-increased reinforced beam is indulged muscle and is welded on the upper face of the wing plate of the following group L-type steel plate or lower face.
8. existing reinforced concrete post according to claim 7 and newly-increased reinforced beam node connecting structure, it is special
Levy and be：The fixed component uses and is provided with hole, the chemical spiral shell on chemical bolt and pad, the web of the L-type steel plate
Bolt, which is passed through, to be stretched into existing reinforced concrete post after pad and hole and anchors L-type steel plate thereon.
9. existing reinforced concrete post according to claim 8 and newly-increased reinforced beam node connecting structure, it is special
Levy and be：The L-type steel plate, which is prefabricated in the factory, to be formed.
10. existing reinforced concrete post according to claim 9 and newly-increased reinforced beam node connecting structure, it is special
Levy and be：Described hole is to be formed in reserved open up of factory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519349.XA CN107268783A (en) | 2017-06-30 | 2017-06-30 | A kind of existing reinforced concrete post and newly-increased reinforced beam node connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519349.XA CN107268783A (en) | 2017-06-30 | 2017-06-30 | A kind of existing reinforced concrete post and newly-increased reinforced beam node connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107268783A true CN107268783A (en) | 2017-10-20 |
Family
ID=60070140
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710519349.XA Pending CN107268783A (en) | 2017-06-30 | 2017-06-30 | A kind of existing reinforced concrete post and newly-increased reinforced beam node connecting structure |
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| CN (1) | CN107268783A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111255260A (en) * | 2020-01-20 | 2020-06-09 | 河南亚佳特绿建科技股份有限公司 | Prefabricated unit-based prefabricated house and construction method thereof |
| CN113756433A (en) * | 2021-09-06 | 2021-12-07 | 百盛联合集团有限公司 | Reinforcing and quick connecting structure and method for reinforcing steel bars of reinforced concrete column and reinforced concrete beam |
| CN114293657A (en) * | 2022-01-08 | 2022-04-08 | 博华工程技术有限公司 | Assembly type building frame and assembling method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111255260A (en) * | 2020-01-20 | 2020-06-09 | 河南亚佳特绿建科技股份有限公司 | Prefabricated unit-based prefabricated house and construction method thereof |
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| CN113756433A (en) * | 2021-09-06 | 2021-12-07 | 百盛联合集团有限公司 | Reinforcing and quick connecting structure and method for reinforcing steel bars of reinforced concrete column and reinforced concrete beam |
| CN114293657A (en) * | 2022-01-08 | 2022-04-08 | 博华工程技术有限公司 | Assembly type building frame and assembling method thereof |
| CN114293657B (en) * | 2022-01-08 | 2023-08-18 | 博华工程技术有限公司 | Assembled building frame and assembling method thereof |
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Application publication date: 20171020 |
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