CN208763186U - A kind of prefabricated beam column crimping joint strengthening structure - Google Patents
A kind of prefabricated beam column crimping joint strengthening structure Download PDFInfo
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- CN208763186U CN208763186U CN201820127707.2U CN201820127707U CN208763186U CN 208763186 U CN208763186 U CN 208763186U CN 201820127707 U CN201820127707 U CN 201820127707U CN 208763186 U CN208763186 U CN 208763186U
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- prefabricated
- joint strengthening
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- supporting piece
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Abstract
A kind of prefabricated beam column crimping joint strengthening structure, the joint strengthening structure includes prefabricated post and composite beam, composite beam includes prefabricated lower part and cast-in-place top, overlapping beam end outsourcing at beam-column connection has joint strengthening device, joint strengthening device includes U-shaped supporting piece and anchor pole, it reserves and has the gap between prefabricated post and prefabricated lower part, be filled with grouting material by template of U-shaped supporting piece in gap, anchor pole integrally anchors into cast-in-place top.The utility model reduces site operation branch modulus, and speed of application is fast；Additional effect of contraction is produced to beam-ends concrete, the concrete compression bearing capacity of beam-ends bottom can be effectively improved, and then improve the anti-seismic performance of node.
Description
Technical field
The utility model belongs to adding for assembling type node installing area, especially a kind of precast concrete beam column crimping node
Strong structure.
Background technique
Assembly concrete frame structure is the mode of construction that a kind of speed of application is fast, economic benefit and environmental benefit are good.
In terms of the stress and from the point of view of in terms of convenience for construction, the joint structure of fabricated construction is all the influence factor of key.Currently, dress
The way that bean column node with formula frame structure mostly uses node area cast-in-place, the way need to handle keeping away for node area beam column reinforcing bar
Make problem, wet construction heavy workload, construction efficiency not high.The crimping way of another bean column node can preferably avoid above
Disadvantage structurally utilizes the prestressing force steel hinge line through prefabricated post and precast beam to be crimped together bean column node, avoids
The conflict of node area reinforcing bar and a large amount of concrete pouring practice, construction efficiency is high, good in economic efficiency.
But there are still following problems in the actual operation process for this prefabricated beam column crimping node:
One, in bean column node seam when grouting, individually designed bed die and side form are needed, handles bad easy spillage.
Two, experimental study shows that under the reciprocating of earthquake, beam-ends coagulation occurs close to the downside of seam crossing is easily relatively early
The routed phenomenon of soil pressure, is not easily repaired after shake.
Utility model content
The purpose of the utility model is to provide a kind of prefabricated beam columns to crimp joint strengthening structure, to solve existing bean column node
Grouting needs the technical issues of individually designed template easy spillage in seam；There are also repair after the insufficient shake of concrete constraint on the downside of beam-ends
The higher technical problem of cost.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of prefabricated beam column crimping joint strengthening structure, the prefabricated post of the concrete including connection and the overlapping of concrete
Beam, the composite beam include prefabricated lower part and cast-in-place top, and the overlapping beam end outsourcing at beam-column connection has joint strengthening
Device, the joint strengthening device include U-shaped supporting piece and anchor pole,
The U-shaped supporting piece includes two vertical side plates disposed in parallel and a horizonal base plate, two ends of horizonal base plate
Portion is fixedly connected with the bottom of vertical side plate respectively,
The upper side of the horizonal base plate is close to the bottom side of composite beam, and the medial surface of the vertical side plate is close to composite beam
Two lateral surfaces of width direction, the front end face of the vertical side plate are close to the lateral surface of prefabricated post, the length of the vertical side plate
Degree is not less than overlapping depth of beam,
It reserves and has the gap between the prefabricated post and prefabricated lower part, be filled with grouting material using U-shaped supporting piece as template in gap,
The high degree of symmetry such as the anchor pole be fixedly connected on the top of two vertical side plates, horizontally extend into two vertical side plates it
Between, the anchor pole integrally anchors into cast-in-place top.
The U-shaped supporting piece is to be welded by three blocks of steel plates or integrally bent by one block of steel plate.
The width of the U-shaped supporting piece is 100mm~200mm, and plate thickness is 6mm~20mm.
The horizontal column prestressed pore passage for running through cylinder is provided in the prefabricated post, the corresponding position of the prefabricated lower part is equipped with
Run through the girder pre-stressed duct of beam body along its length, is integrally installed with pre- answer in the column prestressed pore passage and girder pre-stressed duct
Power steel tendon, the outer end of the prestressing steel wire bunch are anchored at the back surface of prefabricated post by anchoring assembly.
The width in the gap is 20mm~35mm, and the grouting material is non-shrinkage cement-based high-intensity fiber grouting material, nothing
Epoxy resin grouting material or ungauged regions penetrative polymer mortar are shunk, intensity is greater than 20MPa within 1 day, and 28 days compression strength is not
Less than the compression strength of the concrete of prefabricated post.
The anchor pole is weldering nail, and the weldering nail includes post and cylinder ailhead, and the bottom face of the post is welded on vertically
On the medial surface of side plate,
The minimum diameter of the post is 10mm, and minimum length is 4 times of post diameter.
The anchor pole is screw rod, and the screw rod is linear type, and the length of screw rod is greater than the setting distance between vertical side plate,
Open opposite side plate screw hole, the both ends of screw rod in the corresponding position of screw thread over two ends of screw rod are equal, two vertical side plates
It is each passed through side plate screw hole, two external screw threads of screw rod are connect with two nut threads respectively, and the both ends of the screw rod also cover
There is center to be provided with backing plate screw hole and be close to two backing plates of vertical side plate lateral surface, two nuts are fastened to two pads respectively
On the lateral surface of plate.
The diameter of the screw rod is not less than 10mm.
Compared with prior art the utility model have the characteristics that and the utility model has the advantages that
Reparation cost is high after the utility model solves difficult beam column joint grouting, beam-ends concrete constraint deficiency, shake
Problem.It can be used as the bed die and side form being in the milk in beam column seam using joint strengthening device, reduce site operation formwork
Amount, speed of application are fast；Simultaneously joint strengthening device by anchor rod anchored in the overlapping layers of beam, can also be to beam-ends after being installed
Portion's concrete generates certain confining pressure effect, produces additional effect of contraction to beam-ends concrete, can effectively improve beam-ends bottom
The concrete compression bearing capacity in portion, and then improve the anti-seismic performance of node.In addition, joint strengthening device using general steel plate and
Anchor pole production, production can be simply processed and formed at one time in factory, and be transported with precast concrete beam to erecting bed, lifting
Preceding needs to be socketed in prefabricated beam-ends, and the processing is simple, easy for installation.
It reserves and has the gap between the precast concrete column and precast concrete beam of the utility model joint strengthening structure, gap
Inside it is inoculated with high-strength grout；It is equipped with pre-buried duct in precast concrete column and precast concrete beam, wears prestress steel in duct
Tow is crimped together precast concrete column and precast concrete beam, after cooperating the use of joint strengthening device, improves beam column and connects
Stitch grouting efficiency.
Detailed description of the invention
The utility model is described in more detail with reference to the accompanying drawing.
Fig. 1 is the schematic perspective view of the utility model.
Fig. 2 is the side the schematic diagram of the section structure of Fig. 1.
Fig. 3 is the A-A section of the utility model embodiment one.
Fig. 4 is the schematic perspective view of U-shaped supporting piece and weldering nail in Fig. 3.
Fig. 5 is the A-A section of the utility model embodiment two.
Fig. 6 is the schematic perspective view of U-shaped supporting piece and screw rod in Fig. 5.
Appended drawing reference: 1- prefabricated post, 11- column prestressed pore passage, the prefabricated lower part 2-, the girder pre-stressed duct 21-, 3-
Cast-in-place top, 4-U type supporting piece, the vertical side plate of 41-, 411- side plate screw hole, 42- horizonal base plate, 5- anchor pole, 51- weldering
Nail, 511- post, 512- cylinder ailhead, 52- screw rod, 521- external screw thread, 53- nut, the gap 6-, 7- grouting material,
8- prestressing steel wire bunch, 9- anchoring assembly, 10- backing plate.
Specific embodiment
Embodiment one is referring to shown in Fig. 1-4, and a kind of prefabricated beam column crimps joint strengthening structure, the concrete including connection
The composite beam of prefabricated post 1 and concrete, the composite beam include prefabricated lower part 2 and cast-in-place top 3, folding at beam-column connection
It closes and is surrounded by joint strengthening device outside beam end, the joint strengthening device includes U-shaped supporting piece 4 and anchor pole 5.
The U-shaped supporting piece includes two vertical side plates 41 disposed in parallel and a horizonal base plate 42, horizonal base plate 42
Two ends are fixedly connected with the bottom of vertical side plate 41 respectively.
The upper side of the horizonal base plate 42 is close to the bottom side of composite beam, and the medial surface of the vertical side plate 41 is close to folded
Two lateral surfaces in beam width direction are closed, the front end face of the vertical side plate 41 is close to the lateral surface of prefabricated post 1, the vertical side
The length of plate 41 is reserved between the prefabricated post 1 and prefabricated lower part 2 not less than overlapping depth of beam and has the gap 6, with U in gap
Type supporting piece is that template is filled with grouting material 7.
The high degree of symmetry such as the anchor pole 5 are fixedly connected on the top of two vertical side plates 41, horizontally extend into two vertical sides
Between plate 41, the anchor pole 5 is whole to anchor into cast-in-place top 3.
The U-shaped supporting piece 4 is to be welded by three blocks of steel plates or integrally bent by one block of steel plate, the material of steel plate strip
Matter is Q235B.
The width of the U-shaped supporting piece 4 is 100mm~200mm, and plate thickness is 6mm~20mm.
The horizontal column prestressed pore passage 11 for running through cylinder, the corresponding position of the prefabricated lower part 2 are provided in the prefabricated post 1
It is whole in the column prestressed pore passage 11 and girder pre-stressed duct 21 equipped with the girder pre-stressed duct 21 for running through beam body along its length
Body is installed with prestressing steel wire bunch 8, and the outer end of the prestressing steel wire bunch 8 is anchored at the back side of prefabricated post 1 by anchoring assembly 9
Surface.
The width in the gap 6 be 20mm~35mm, the grouting material 7 be non-shrinkage cement-based high-intensity fiber grouting material,
Ungauged regions epoxy resin grouting material or ungauged regions penetrative polymer mortar, intensity is greater than 20MPa, 28 days compression strength within 1 day
Not less than the compression strength of the concrete of prefabricated post.
In the present embodiment, the anchor pole 5 is weldering nail 51, and the weldering nail includes post 511 and cylinder ailhead 512, the nail
The bottom face of column is welded on the medial surface of vertical side plate 41.The minimum diameter of the post is 10mm, and minimum length is post
4 times of diameter.
The construction method of this prefabricated beam column crimping joint strengthening structure, construction procedure are as follows:
Step 1: making prefabricated post 1, prefabricated lower part 2 and joint strengthening device in factory；
Step 2: hanging over the end into prefabricated lower part 2 for 4 sets of U-shaped supporting piece of tape welding nail 51；
Step 3: lifting in place by the prefabricated lower part 2 that prefabricated post 1 and set hang with U-shaped supporting piece 4 and being fixed temporarily, the two
Between there are gap 6, alignment post prestressed pore passage 11 and girder pre-stressed duct 21, then penetrate prestressing steel wire bunch 8, column is answered in advance
It is sealed at the docking in power duct 11 and girder pre-stressed duct 21；
Step 4: U-shaped supporting piece 4 is removed to the direction of prefabricated post 1, hold out against the front end of U-shaped supporting piece 4 and prefabricated post 1 together
When U-shaped supporting piece inside be close to three sides of prefabricated lower part 2, be fixed temporarily U-shaped supporting piece 4；
Step 5: pouring into grouting material 7 in the gap 6 between prefabricated post 1 and prefabricated lower part 2 full of close from the top of node
In fact, bed die and side form of the U-shaped supporting piece 4 as grouting material when grouting；
Step 6: stretch-draw prestressing force steel tendon 8 and fixed by anchoring assembly 9；
Step 7: doing side form beyond the part of prefabricated post with U-shaped supporting piece 4 at beam-column connection, cast-in-place top 3 is poured
Concrete anchors into weldering nail 51 in the concrete, completes the construction of composite beam at node.
Embodiment two is referring to shown in Fig. 1-2,5-6, what is different from the first embodiment is that the anchor pole 5 is screw rod 52, the spiral shell
Bar 52 is linear type, and the length of screw rod 52 is greater than the setting distance between vertical side plate 41, over two ends of screw rod 52 are equal
Opposite side plate screw hole 411 is opened in the corresponding position of screw thread 521, two vertical side plates 41, and the both ends of screw rod 52 are each passed through side
Two external screw threads 521 of plate screw hole 411, screw rod 52 are threadedly coupled with two nuts 53 respectively, and the both ends of the screw rod 52 are also
It is cased with center to be provided with backing plate screw hole and be close to two backing plates 10 of vertical 41 lateral surface of side plate, two nuts 53 fasten respectively
To the lateral surface of two backing plates 10.
The diameter of the screw rod is not less than 10mm.
The construction method of this prefabricated beam column crimping joint strengthening structure, construction procedure are as follows:
Step 1: making prefabricated post 1, prefabricated lower part 2 and joint strengthening device in factory；
Step 2: prefabricated post 1 and prefabricated lower part 2 are lifted in place and are fixed temporarily, it is right between the two there are gap 6
Neat column prestressed pore passage 11 and girder pre-stressed duct 21, then penetrate prestressing steel wire bunch 8, column prestressed pore passage 11 and beam are answered in advance
It is sealed at the docking in power duct 21；
Step 3: the end of U-shaped supporting piece 4 from prefabricated lower part 2 is inserted in upwards, and removed to the direction of prefabricated post 1, makes U
The front end of type supporting piece 4 is close to three sides of prefabricated lower part 2 with the inside that prefabricated post 1 holds out against U-shaped supporting piece simultaneously, is fixed temporarily U
Type supporting piece 4；
Step 4: being fastened through screw rod 52 in side plate screw hole 411 and by backing plate 10 and 53 both ends of nut；
Step 5: pouring into grouting material 7 in the gap 6 between prefabricated post 1 and prefabricated lower part 2 full of close from the top of node
In fact, bed die and side form of the U-shaped supporting piece 4 as grouting material when grouting；
Step 6: stretch-draw prestressing force steel tendon 8 and fixed by anchoring assembly 9；
Step 7: doing side form beyond the part of prefabricated post with U-shaped supporting piece 4 at beam-column connection, cast-in-place top 3 is poured
Concrete anchors into screw rod 52 in the concrete, completes the construction of composite beam at node.
Claims (7)
1. a kind of prefabricated beam column crimps joint strengthening structure, the overlapping of prefabricated post (1) and concrete of the concrete including connection
Beam, the composite beam include prefabricated lower part (2) and cast-in-place top (3), it is characterised in that: the overlapping beam-ends at beam-column connection
It is surrounded by joint strengthening device outside portion, the joint strengthening device includes U-shaped supporting piece (4) and anchor pole (5),
The U-shaped supporting piece includes two vertical side plates (41) and a horizonal base plate (42) disposed in parallel, horizonal base plate (42)
Two ends be fixedly connected respectively with the bottom of vertical side plate (41),
The upper side of the horizonal base plate (42) is close to the bottom side of composite beam, and the medial surface of the vertical side plate (41) is close to folded
Two lateral surfaces in beam width direction are closed, the front end face of the vertical side plate (41) is close to the lateral surface of prefabricated post (1), described perpendicular
It is not less than overlapping depth of beam to the length of side plate (41),
It reserves and has the gap (6) between the prefabricated post (1) and prefabricated lower part (2), U-shaped supporting piece is that template is filled with grouting in gap
Expect (7),
The high degree of symmetry such as the anchor pole (5) are fixedly connected on the top of two vertical side plates (41), horizontally extend into two vertical sides
Between plate (41), the anchor pole (5) integrally anchors into cast-in-place top (3).
2. prefabricated beam column according to claim 1 crimps joint strengthening structure, it is characterised in that: the U-shaped supporting piece (4) is
It is welded by three blocks of steel plates or is integrally bent by one block of steel plate.
3. prefabricated beam column according to claim 2 crimps joint strengthening structure, it is characterised in that: the U-shaped supporting piece (4)
Width is 100mm~200mm, and plate thickness is 6mm~20mm.
4. prefabricated beam column according to claim 3 crimps joint strengthening structure, it is characterised in that: on the prefabricated post (1)
It is provided with the horizontal column prestressed pore passage (11) for running through cylinder, the corresponding position of the prefabricated lower part (2) is equipped with to be passed through along its length
The girder pre-stressed duct (21) of beam body is worn, is integrally installed with pre- answer in the column prestressed pore passage (11) and girder pre-stressed duct (21)
Power steel tendon (8), the outer end of the prestressing steel wire bunch (8) are anchored at the back side table of prefabricated post (1) by anchoring assembly (9)
Face.
5. prefabricated beam column according to claim 4 crimps joint strengthening structure, it is characterised in that: the width of the gap (6)
Degree is 20mm~35mm, and the grouting material (7) is non-shrinkage cement-based high-intensity fiber grouting material, ungauged regions epoxy resin grouting material
Or ungauged regions penetrative polymer mortar, 1 day intensity are greater than 20MPa, compression strength is not less than the concrete of prefabricated post within 28 days
Compression strength.
6. prefabricated beam column according to claim 3 or 4 crimps joint strengthening structure, it is characterised in that: the anchor pole (5) is
Weldering nail (51), the weldering nail include that post (511) and cylinder ailhead (512), the bottom face of the post are welded on vertical side plate
(41) on medial surface,
The minimum diameter of the post is 10mm, and minimum length is 4 times of post diameter.
7. prefabricated beam column according to claim 3 or 4 crimps joint strengthening structure, it is characterised in that: the anchor pole (5) is
Screw rod (52), the screw rod (52) are linear type, and the length of screw rod (52) is greater than the setting distance between vertical side plate (41), spiral shell
Open opposite side plate screw hole in the corresponding position of screw thread (521) over two ends of bar (52) are equal, two vertical side plates (41)
(411), the both ends of screw rod (52) are each passed through side plate screw hole (411), and two external screw threads (521) of screw rod (52) are respectively with two
A nut (53) is threadedly coupled, and the both ends of the screw rod (52) are also cased with center and are provided with backing plate screw hole and are close to vertical side plate
(41) two backing plates (10) of lateral surface, two nuts (53) are fastened to respectively on the lateral surface of two backing plates (10)；The spiral shell
The diameter of bar is not less than 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820127707.2U CN208763186U (en) | 2018-01-25 | 2018-01-25 | A kind of prefabricated beam column crimping joint strengthening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820127707.2U CN208763186U (en) | 2018-01-25 | 2018-01-25 | A kind of prefabricated beam column crimping joint strengthening structure |
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| CN208763186U true CN208763186U (en) | 2019-04-19 |
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ID=66124991
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820127707.2U Expired - Fee Related CN208763186U (en) | 2018-01-25 | 2018-01-25 | A kind of prefabricated beam column crimping joint strengthening structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179807A (en) * | 2018-01-25 | 2018-06-19 | 中国建筑股份有限公司 | A kind of prefabricated beam column crimping joint strengthening structure and its construction method |
| CN110130501A (en) * | 2019-04-30 | 2019-08-16 | 同济大学 | A kind of welding procedure method suitable for combining the cement-based material of concrete structure |
-
2018
- 2018-01-25 CN CN201820127707.2U patent/CN208763186U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179807A (en) * | 2018-01-25 | 2018-06-19 | 中国建筑股份有限公司 | A kind of prefabricated beam column crimping joint strengthening structure and its construction method |
| CN110130501A (en) * | 2019-04-30 | 2019-08-16 | 同济大学 | A kind of welding procedure method suitable for combining the cement-based material of concrete structure |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 Termination date: 20210125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |