CN208899751U - Replaceable screw shell ductility reinforcing steel bar connecting device - Google Patents
Replaceable screw shell ductility reinforcing steel bar connecting device Download PDFInfo
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- CN208899751U CN208899751U CN201821333908.4U CN201821333908U CN208899751U CN 208899751 U CN208899751 U CN 208899751U CN 201821333908 U CN201821333908 U CN 201821333908U CN 208899751 U CN208899751 U CN 208899751U
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- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 230000002787 reinforcement Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000025712 muscle attachment Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of replaceable screw shell ductility reinforcing steel bar connecting devices, belong to concrete component interconnection technique field.The utility model attachment device main body includes: a set of bolt and nut component；A pair of of screw shell, one end of the screw shell are internal screw thread hollow cylinders, and the other end is the horizontal shear plate containing an axis hole.With the positioning convex point and positioning pit of center of circle centering on the utility model horizontal shear plate.The utility model can still reconnect the reinforcing bar of new, old component after the structural elements integral replacing of script connection；Using larger axis hole, to provide displacement space under limiting condition；, full device replaceable with attachment device can it is prefabricated, can single construction, advantage that is reusable, saving human cost, improve ductility of joint.
Description
Technical field
The utility model relates to a kind of replaceable screw shell reinforcing steel bar connecting devices, belong to concrete component interconnection technique neck
Domain.
Background technique
Existing reinforcing bar connection type mainly has three kinds of binding overlap joint, mechanical connection and welding.Reinforcing bar binding overlap joint connection
Mode is simple, construction efficiency is high；But reinforcing bar waste simultaneously is too big, skeleton is easily deformed, and application is limited, in " concrete
Code for structural design GB 50010-2010 " regulation: the Reinforcement of axial tension and small eccentricity tension member must not use
Bind lap joint.Welding operation splice operation is more direct, overlaps not applicable occasion supplemented with binding；Disadvantage
It is that welding equipment volume is larger, it is mobile inconvenient, it narrow space or is difficult to construct without crane, connector qualification rate is low, and power consumption is larger,
To construction process requirement height.The development trend of building industrialization is not met, it is not environmentally protective.
Mechanical connection mainly includes sleeve grouting interconnection technique, is press-connected, is threadedly coupled.Sleeve grouting connection application is wide
General, cost is relatively low；But there are the inadequate problems of the hidden danger blocked in spillage, sleeve and low-temperature construction intensity to be difficult to avoid that.
It is press-connected and avoids using all kinds of defects of grouting material, but extrusion equipment volume is big, high altitude operation is constant.
Thread connecting mode strength of joint is high, connector speed is fast, usability is strong, construction efficiency is high, section material, energy saving economy,
Advantage applied widely.But one is not easy to operate under existing thread connecting mode.From outer in existing thread connecting mode
Portion cannot observe determining reinforcing bar screw-in length, can not find in time when misplacing the case where, the company between reinforcing bar and sleeve
Reliability is connect to be difficult to ensure.Meanwhile reinforcing bar is screwed in when only one sleeve under existing thread connecting mode, it needs by spanner
Rotation or mobile whole reinforcing bar even two reinforcing bars, the connection that can not be applied between the structural elements of casting concrete.
Moreover, needing to process steel bar end by instrument when connecting the reinforcing bar of different-diameter under existing thread connecting mode, operate
It is cumbersome, can also have an adverse effect to the performance of steel bar end.Existing China's building aseismicity sets up defences the design principle of specification can be simple
It is described as " no damage in small earthquake, middle shake can repair, no collapsing with strong earthquake ", and reinforcing bar connection type does not consider its ductile performance mostly at present,
Shock resistance is weaker under limiting condition, it is difficult to meet requirements for fortification against earthquake.The utility model will make full use of threaded connection side
While formula advantage itself, posed problems above is solved.
Summary of the invention
Place, the utility model provide a kind of replaceable screw shell ductile steel in order to overcome the above-mentioned deficiencies of the prior art
Muscle attachment device has slipping space in the junction of screw shell, and bolt moves horizontally in axis hole can absorb portion of energy, increases
The strong deformability of structure, thus enhance ductile performance, and installation effectiveness is high, it is easy to use, safe.
The utility model is achieved by the following technical solution: a kind of replaceable screw shell ductility reinforcing bar connection dress
It sets, including a pair of mutually matched screw shell, a set of fastening assembly being made of bolt, nut；The screw shell includes
Internal screw thread hollow cylinder, internal screw thread hollow cylinder middle part have the spiral shell with splice cooperation along the production of internal screw thread hollow cylinder central axes direction
Line through-hole, one end of the internal screw thread hollow cylinder are that reinforcing bar screws in face, and the other end of internal screw thread hollow cylinder is a plate interface, cylinder
Horizontal shear plate is fixed on plate interface, the thickness of horizontal shear plate is the half of internal screw thread hollow cylinder whole height；
Production has the axis hole passed through for the bolt on the horizontal shear plate, and axis hole is that both ends are semi-circle edge, centre
The long hole of straight flange, the longitudinal direction of long hole is consistent with the axis direction of internal screw thread hollow cylinder, the radius of the semi-circle edge with
The screw rod radius of the bolt is consistent；The center of circle of the inside semi-circle edge of axis hole is denoted as A, by the outside semi-circle edge of axis hole
The center of circle is denoted as B, and the distance of center circle between center of circle A and center of circle B is denoted as L；
In a pair of screw shell, production has two on the wherein inner plane of the horizontal shear plate of a screw shell
A positioning convex point, two positioning convex points are located at the two sides of its center of circle B for corresponding to axis hole, and the center of two positioning convex points is connected through
Center of circle B；There are four positioning pits for production on the inner plane of the horizontal shear plate of another screw shell, wherein there are two fixed
Position concave point be located at its correspond to axis hole center of circle B two sides, the center of the two positioning pits be connected through center of circle B, formation by
Positioning pit is drawn, the position of other two positioning pit is equivalent to the distance that the tension positioning pit translates 2L inwardly, shape
At compression positioning pit.
The main body of the internal screw thread hollow cylinder is the column structure being made of half of cylindrical body and half of cube, the water
The bottom surface of flat shear resisting board is flushed with the bottom surface of half of cube of internal screw thread hollow cylinder, and the inner plane of horizontal shear plate blocks described
The half of the tapped through hole of internal screw thread hollow cylinder, so that tapped through hole forms semicircular observation window in cylinder plate interface.
The internal screw thread hollow cylinder and horizontal shear plate for constituting the screw shell are whole integrated moldings.
The positioning convex point is hemispherical projections, and the positioning pit is hemispherical dimples.
The beneficial effects of the utility model are:
The defect of material and the difficulty of construction when the connection type of the utility model had not only avoided sleeve grouting connection, but also rule
The defect that the problem of equipment is difficult to high altitude operation again when being press-connected mode solves binding overlap joint and welding, strength of joint are kept away
Height, connector speed is fast, usability is strong, construction efficiency is high, section material, energy conservation.
The utility model uses the axis hole of long hole forms, under normal operating condition, the utility model reinforcing steel bar connecting device
Guarantee securely to connect between reinforcing bar and do not occur to slide and destroy, meets building aseismicity and set up defences the design requirement of specification；By height
When the limiting cases such as the earthquake or explosion of this area fortification intensity influence, under reciprocating load, the presence of slipping space L
Bolt can be made to move horizontally in axis hole and enhance the deformability of structure to absorb portion of energy, thus enhance ductility, with
Realize the design requirement of " no collapsing with strong earthquake ".
The interior outside center of circle of effective positioning shaft hole is capable of in the setting of the utility model positioning convex point and positioning pit, from
And compressive reinforcement can be adapted to simultaneously and connected with the installation of tension reinforcement, construction efficiency is high, and both having constructed slipping space L can be with
It moves horizontally bolt in axis hole, and facilitates operation and secure connection.
Semicircle orifice existing at the utility model cylinder plate interface can see whether to be completely screwed into, and guarantee reinforcing bar and screw thread
The abundant connection of sleeve.Steel bar end is screwed in respectively using two sleeves, is not necessarily to rotation or mobile whole even two reinforcing bars, one
Operation becomes a reality, and operating process is easily easy, reduces human cost.
Detailed description of the invention
Below according to drawings and examples, the present invention will be further described.
Fig. 1 is the utility model component schematic diagram；
Fig. 2 is the utility model a pair of screw shell top view；
Fig. 3 is the left view of Fig. 2, and the screw shell with positioning pit 6 has overturn 180 degree；
Fig. 4 is the utility model significant dimensions label schematic diagram；
Fig. 5 is the utility model connection schematic diagram；
Fig. 6 is the utility model use state diagram.
In figure, 1, horizontal shear plate, 1-1, axis hole, 2, internal screw thread hollow cylinder, 2-1, cylinder plate interface, 2-2, reinforcing bar are screwed in
6-2, face, 2-3, observation window, 3, bolt, 4, nut, 5, positioning convex point, 6, positioning pit, 6-1, tension positioning pit are pressurized and determine
Position concave point, 7, screw shell；
The face α, the face β-horizontal shear plate inner plane.
Specific embodiment
Below with reference to embodiment, the present invention will be further described.
A kind of replaceable screw shell ductility reinforcing steel bar connecting device as shown in figure 1-5, including it is a pair of mutually matched
Screw shell 7, a set of fastening assembly being made of bolt 3, nut 4；The screw shell 7 includes internal screw thread hollow cylinder 2, interior spiral shell
There are the tapped through hole with splice cooperation, the interior spiral shell in 2 middle part of line hollow cylinder along the production of 2 central axes direction of internal screw thread hollow cylinder
One end of line hollow cylinder 2 is that reinforcing bar screws in face 2-2, and the other end of internal screw thread hollow cylinder 2 is a plate interface 2-1, and cylinder plate has a common boundary
Horizontal shear plate 1 is fixed on the 2-1 of face, the thickness of horizontal shear plate 1 is the half of 2 whole height of internal screw thread hollow cylinder.
The axis hole 1-1 that production has the confession bolt 3 to pass through on the horizontal shear plate 1, axis hole 1-1 are that both ends are semi arch
Side, centre are the long holes of straight flange, and the longitudinal direction of long hole is consistent with the axis direction of internal screw thread hollow cylinder 2, the semi-circle edge
Radius it is consistent with the screw rod radius of the bolt 3；The center of circle of the inside semi-circle edge of axis hole 1-1 is denoted as A, by axis hole 1-1
The center of circle of outside semi-circle edge be denoted as B, the distance of center circle between center of circle A and center of circle B is denoted as L.
In a pair of screw shell 7, made on the wherein inner plane of the horizontal shear plate 1 of a screw shell 7
There are two positioning convex point 5, two positioning convex points 5 are located at the two sides of center of circle B of its correspondence axis hole 1-1, in two positioning convex points 5
The heart is connected through center of circle B；There are four positioning pits for production on the inner plane of the horizontal shear plate 1 of another screw shell 7
6, wherein there are two the two sides that positioning pit 6 is located at its center of circle B for corresponding to axis hole 1-1, the center connection of the two positioning pits 6
By center of circle B, tension positioning pit 6-1 is formed, the position of other two positioning pit 6 is equivalent to the tension positioning pit
6-1 translates the distance of 2L inwardly, forms compression positioning pit 6-2.
The main body of the internal screw thread hollow cylinder 2 is the column structure being made of half of cylindrical body and half of cube, described
The bottom surface of horizontal shear plate 1 is flushed with the bottom surface of half of cube of internal screw thread hollow cylinder 2, and the inner plane of horizontal shear plate 1 hides
The half of the tapped through hole of the internal screw thread hollow cylinder 2 is kept off, so that tapped through hole forms semicircular sight in cylinder plate interface 2-1
Examine window 2-3.
The internal screw thread hollow cylinder 2 and horizontal shear plate 1 for constituting the screw shell 7 are whole integrated moldings.Institute
Stating has straight thread in internal screw thread hollow cylinder, the diameter of thread is consistent with splice end diameter；Above-mentioned internal screw thread has and reinforcing bar
The corresponding screw pitch of tip side external screw thread.Hexagon-headed bolt size needed for above-mentioned attachment device is strong by concrete application situation, connector
It spends the practical factors such as requirement, bar diameter and determines that screw shell 7 can make in advance according to the actual situation, easy to operate, scene
Without large-scale instrument.Meet the trend of building industrialization, device is prefabricated, assembled in situ.
The positioning convex point 5 is hemispherical projections, and the positioning pit 6 is hemispherical dimples.
With reference to Fig. 1, Fig. 4, the horizontal shear plate of the utility model Z-direction with a thickness of 1/2 internal screw thread hollow cylinder in Z
Axis direction outer diameter.The wall thickness and X-direction length of the internal screw thread hollow cylinder 2 of the utility model reinforcing steel bar connecting device can refer to " steel
Muscle mechanical connection sleeve JG/T 163-2013 " " Table A .1 steel concrete supporting straight screw sleeve minimum parameter in appendix A
The requirement of table " is determined in conjunction with the specific situation.
In the axis hole 1-1 size of the utility model reinforcing steel bar connecting device, R1 is the radius and hexagonal of axis hole two sides semicircle
The radius of hook bolt (partial threads) tightening latch；R2 is the hexagon nut inradius of hexagon-headed bolt (partial threads)；It is sliding
Shifting space L is two semicircle center of circle spacing.It is using the advantages of larger axis hole: under normal operating condition, and by low
When the earthquake effect of this area fortification intensity or by the case where the earthquake effect for being equivalent to this area fortification intensity, lead to
Cross the utility model proposes reinforcing steel bar connecting device guarantee securely to connect between reinforcing bar and do not occur to slide and destroy, it is anti-to meet building
Shake the design requirement for specification of setting up defences；When being influenced by limiting cases such as the earthquakes or explosion for being higher than this area fortification intensity,
Under reciprocating load, the presence of slipping space L can be such that bolt is moved horizontally in axis hole to absorb portion of energy, enhance
The deformability of structure, to enhance ductility, with the design principle of realization " no collapsing with strong earthquake ".
A kind of installation method of replaceable screw shell ductility reinforcing steel bar connecting device:
Include the following steps: with reference to Fig. 1-Fig. 6,
Step 1, threaded steel bar end is reserved in two concrete component connecting pins to be connected, by a pair of of screw shell
The steel bar end on two concrete components is screwed in 7 internal screw thread hollow cylinder 2 respectively, until cylinder plate interface 2-1 is arrived on top, is passed through
Observation window 2-3 at cylinder plate interface sees whether to be sufficiently rotated into；
Step 2, the face inner plane α of the horizontal shear plate 1 of two screw shells 7, the face β are overlapped；It will be with positioning pit 6 one
The center of circle A and center of circle B of the axis hole 1-1 of side is denoted as A1, B1, and the center of circle A and center of circle B of the axis hole 1-1 with 5 side of positioning convex point is denoted as
A2,B2；It is required that the horizontal shear plate inner plane of two screw shells, i.e. the face α and the face β in Fig. 1 completely attach to overlapping,
Two internal screw thread hollow cylinders 2 are coaxial conllinear.
For compressive reinforcement: fixed by the compression on the positioning convex point 5 and another screw shell 7 of a screw shell 7
Position concave point 6-2 is engaged, and will be overlapped after center of circle A1, A2 centering on the inside of the axis hole on two screw shells；For tension reinforcement: logical
The positioning convex point 5 and the tension positioning pit 6-1 on another screw shell 7 for crossing a screw shell 7 are engaged, by two screw threads
It is overlapped after center of circle B1, B2 centering on the outside of the axis hole of sleeve.
Step 3, it is inserted into bolt 3, bolt is close to the axis hole wall of the side axis hole 1-1, is made in the axis C1 and axis hole of bolt 3
Corresponding nut 4 is tightened after center of circle B1, B2 centering on the outside of the center of circle A1, A2 or axis hole of side.
Step 4, after completing whole reinforcing bar connections, bonding pad cast-in-place concrete connects two concrete components.
Semicircle orifice existing at the utility model cylinder plate interface can see whether to be completely screwed into, and guarantee reinforcing bar and screw thread
The abundant connection of sleeve.Steel bar end is screwed in respectively using two sleeves, is not necessarily to rotation or mobile whole even two reinforcing bars, one
Operation becomes a reality, and operating process is easily easy, reduces human cost.It is directed to two class of tension reinforcement and compressive reinforcement respectively
Connection make concrete regulation, application range is wider.By limiting cases such as the earthquakes or explosion for being higher than this area fortification intensity
When influence, when reciprocating load reaches a certain level down, the tension reinforcement or compressive reinforcement of script may not maintain tension or by
Pressure, after Impact direction changes, the center of circle of the bolt no longer to central axis hole side semicircle, bolt-center C1 center of circle A1 and center of circle B1 it
Between, slide between center of circle A2 and center of circle B2, the deformability of structure is enhanced, to enhance ductility；If under end-state for by
It presses, then bolt-center C1 and center of circle A1, center of circle A2 centering, if under end-state being tension, bolt-center C1 and center of circle B1, circle
Heart B2 centering.
A kind of replacing options of replaceable screw shell ductility reinforcing steel bar connecting device,
Include the following steps:
Step 1, the concrete of removing member bonding pad unclamps nut 4 and extracts bolt 3；
Step 2, it after two screw shells 7 being separated along horizontal shear plate, is screwed out respectively from two threaded steel bar ends；
Step 3, the original structure component needed replacing is removed, after new structural elements is in place, repeats installation method
In step installed.
The construction of minimum part, reinforcing bar after outer concrete disconnects can be realized when replacing structural elements using the utility model
It can be easier to split in the case where not cutting, and original device part is still available after splitting, and can reconnect new clothes
The reinforcing bar set.Not only energy conservation and environmental protection, the reusable waste that more avoids efficient apparatus and cannot continue with.
In short, using utility model device and installation, Replacement procedure, in the structural elements integral replacing of script connection
Afterwards, the reinforcing bar of new, old component can still be reconnected；Using larger axis hole, to provide displacement space under limiting condition, for past
The anti-seismic performance that reinforcing bar connects under multiple load provides safeguard；, full device replaceable with attachment device can it is prefabricated, can one apply
Work, advantage that is reusable, saving human cost, improve ductility of joint.
Claims (4)
1. a kind of replaceable screw shell ductility reinforcing steel bar connecting device, it is characterised in that: including a pair of mutually matched thread bush
Cylinder (7), a set of fastening assembly being made of bolt (3), nut (4)；The screw shell (7) includes internal screw thread hollow cylinder (2),
Along internal screw thread hollow cylinder (2) central axes direction, production has the tapped through hole with splice cooperation in the middle part of internal screw thread hollow cylinder (2),
One end of the internal screw thread hollow cylinder (2) is that reinforcing bar screws in face (2-2), and the other end of internal screw thread hollow cylinder (2) is that a plate has a common boundary
Face (2-1) is fixed with horizontal shear plate (1) on cylinder plate interface (2-1), and the thickness of horizontal shear plate (1) is that internal screw thread is hollow
The half of cylinder (2) whole height；
Production has the axis hole (1-1) passed through for the bolt (3) on the horizontal shear plate (1), and axis hole (1-1) is that both ends are half
Arc-shaped edges, centre are the long holes of straight flange, and the longitudinal direction of long hole is consistent with the axis direction of internal screw thread hollow cylinder (2), described half
The radius of arc-shaped edges is consistent with the screw rod radius of the bolt (3)；The center of circle of the inside semi-circle edge of axis hole (1-1) is denoted as A,
The center of circle of the outside semi-circle edge of axis hole (1-1) is denoted as B, the distance of center circle between center of circle A and center of circle B is denoted as L；
In a pair of screw shell (7), made on the inner plane of the horizontal shear plate (1) of a screw shell (7) wherein
Make there are two positioning convex point (5), two positioning convex points (5) are located at the two sides of its center of circle B for corresponding to axis hole (1-1), two positioning
The center of salient point (5) is connected through center of circle B；It is made on the inner plane of the horizontal shear plate (1) of another screw shell (7)
There are four positioning pit (6), wherein this two there are two the two sides that positioning pit (6) are located at its center of circle B for corresponding to axis hole (1-1)
The center of a positioning pit (6) is connected through center of circle B, forms tension positioning pit (6-1), other two positioning pit (6)
Position be equivalent to the distance that the tension positioning pit (6-1) translates 2L inwardly, formed compression positioning pit (6-2).
2. replaceable screw shell ductility reinforcing steel bar connecting device according to claim 1, it is characterised in that: the internal screw thread
The main body of hollow cylinder (2) is the column structure being made of half of cylindrical body and half of cube, the bottom of the horizontal shear plate (1)
Face is flushed with the bottom surface of half of cube of internal screw thread hollow cylinder (2), and the inner plane of horizontal shear plate (1) blocks the internal screw thread
The half of the tapped through hole of hollow cylinder (2), so that tapped through hole forms semicircular observation window (2- in cylinder plate interface (2-1)
3).
3. replaceable screw shell ductility reinforcing steel bar connecting device according to claim 1 or 2, it is characterised in that: constitute institute
The internal screw thread hollow cylinder (2) and horizontal shear plate (1) for stating screw shell (7) are whole integrated moldings.
4. replaceable screw shell ductility reinforcing steel bar connecting device according to claim 1 or 2, it is characterised in that: described fixed
Position salient point (5) is hemispherical projections, and the positioning pit (6) is hemispherical dimples.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821333908.4U CN208899751U (en) | 2018-08-19 | 2018-08-19 | Replaceable screw shell ductility reinforcing steel bar connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821333908.4U CN208899751U (en) | 2018-08-19 | 2018-08-19 | Replaceable screw shell ductility reinforcing steel bar connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208899751U true CN208899751U (en) | 2019-05-24 |
Family
ID=66569619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821333908.4U Withdrawn - After Issue CN208899751U (en) | 2018-08-19 | 2018-08-19 | Replaceable screw shell ductility reinforcing steel bar connecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208899751U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868008A (en) * | 2018-08-19 | 2018-11-23 | 中国矿业大学 | Replaceable screw shell ductility reinforcing steel bar connecting device and installation and replacement method |
| CN113982124A (en) * | 2021-10-28 | 2022-01-28 | 中国建筑第五工程局有限公司 | Prefabricated part dislocation connecting structure and construction method thereof |
-
2018
- 2018-08-19 CN CN201821333908.4U patent/CN208899751U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868008A (en) * | 2018-08-19 | 2018-11-23 | 中国矿业大学 | Replaceable screw shell ductility reinforcing steel bar connecting device and installation and replacement method |
| CN108868008B (en) * | 2018-08-19 | 2024-06-18 | 中国矿业大学 | Ductile steel bar connecting device with replaceable threaded sleeve and installation and replacement method |
| CN113982124A (en) * | 2021-10-28 | 2022-01-28 | 中国建筑第五工程局有限公司 | Prefabricated part dislocation connecting structure and construction method thereof |
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Granted publication date: 20190524 Effective date of abandoning: 20240618 |
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