CN110258320A - A kind of strong anchor prepressing type synchronization displacement expansion device of unit - Google Patents
A kind of strong anchor prepressing type synchronization displacement expansion device of unit Download PDFInfo
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- CN110258320A CN110258320A CN201910417796.3A CN201910417796A CN110258320A CN 110258320 A CN110258320 A CN 110258320A CN 201910417796 A CN201910417796 A CN 201910417796A CN 110258320 A CN110258320 A CN 110258320A
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- plate
- welding
- steel plate
- bridge
- fishback
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/065—Joints having sliding plates
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention discloses a kind of strong anchor prepressing type synchronization displacement bridge extension joint of unit, it include: the mobile fishback and fixed broach plate arranged in opposite directions, left and right anchoring assembly, anchoring assembly includes equally distributed upright steel plate along longitudinal direction, upright steel plate top and mobile fishback and the welding of fixed broach plate are connected, lower part and the welding of bridge embedded ribs are connected, counterbore is provided on fishback, fishback is arranged with dust excluding plate up and down, the supporting element of at least two groups cross direction profiles being made of the hard rubber item in channel steel and insertion channel steel is set between on lower dust excluding plate and the upright steel plate of right fastener inserts, high-strength bolt and nut are provided in counterbore, it is connected simultaneously with transverse bar and moment reinforcement welding below high-strength bolt, it is connected again with the welding of bridge embedded ribs below moment reinforcement.Due to high-strength bolt lower end and transverse bar and embedded ribs secondary welding, overcome flexible panel counterbore to the shear fatigue of screw rod, and the desoldering of flexible panel can be effectively prevent using the prestressing force of screw rod.
Description
Technical field
The present invention relates to a kind of synchronous displacement bridge extension joints of the strong anchor prepressing type of unit, belong to science of bridge building Building technology neck
Domain.
Background technique
Bridge extension joint, which is arranged, directly affects the durable of bed rearrangement bridge in beam-ends bridge floor vulnerable area, quality and performance
Property.It is influenced since telescopic device subjects always various natural environment etches, because there is cold and hot flexible, Zong Xiangyao in use process
Put the problems such as tilting, lateral oscillation are relative to the multi-directional deflections such as twisting (that is, three direction displacement, flexible and rotation).Therefore, this is stretched
The general requirement of compression apparatus includes: that waterproof performance is good, each component durability in capable of expansion and contraction and device is good, especially flexible dress
The overall structure and installation accuracy set need to reach design requirement, and low noise, vibration are small when being sailed with sharp vehicle, to realize flexible dress
It is good to set overall operation, long service life and easy to maintain.
Existing comb-tooth bridge expansion device, there are two main classes anchor structure, one kind is non-bolt anchor structure form, separately
One kind is the structure type anchored with bolt.
Non-bolt anchor structure form is to be welded into integral unit using flexible panel and anchor system, whole during installation
The anchor system of unit again with abutment embedded bar weld after-pouring concrete, vehicular impact stretch panel when easily cause welding
Fatigue leads to desoldering, is always to be difficult to the headache fully and completely solved, such as patent of invention " the flexible dress of fishback bridge
Set " integral unit welding structure form disclosed in (201010595118.5).
If another kind of machined using the structure type more generally anchored using bolt using on flexible panel
A dry counterbore, when installation, weld screw arbor assembly and abutment embedded bar according to counterbore position, cover after casting concrete flexible
Panel, tightens nut in flexible panel counterbore, vehicular impact stretch panel when easily cause shear fatigue screw rod caused to be cut
Disconnected, this is also the technical problem that this structure type can not avoid.
Summary of the invention
The purpose of the present invention is overcoming deficiency described in background technique, it is flexible to design a kind of strong anchor prepressing type synchronization displacement of unit
Device, flexible panel and anchor system are welded into integral unit, and machine several counterbores on flexible panel, and counterbore is built-in
With high-strength bolt, screw rod lower end and anchor system are welded, during installation the anchor system of overall unit type again with abutment pre-buried steel
Muscle welding, and it is synchronous by screw rod lower end and the welding of abutment embedded bar, and casting concrete is met the requirements to concrete curing intensity
Afterwards, nut is tightened after covering upper lock washer in flexible panel counterbore, and is pressurizeed with impact gun, answers pressure to certain pre- of screw rod.
Technical solution of the present invention overcomes flexible panel counterbore using the stability of welding integral unit and abutment embedded ribs rigidly anchored
To the shear fatigue of screw rod, it can effectively prevent the desoldering of flexible panel using the prestressing force of screw rod in turn, the two mutually reinforces,
Mutually protection, can effectively solve existing two class anchor structure of comb-tooth bridge expansion device cannot synchronize solution solder joint fatigue and cut
Cut the problem of fatigue.On the other hand, technical solution of the present invention utilizes hard rubber seat supports also in the front end of fixed broach plate
Comb teeth plays the role of defeating a force with a tenderness, and effectively buffers cargo impact force and reduces impact noise.
The technical scheme is that a kind of strong anchor prepressing type of unit is synchronous to conjugate bridge extension joint, it is in modular knot
Structure, each unit include: the mobile fishback (1) arranged in opposite directions and fixed broach plate (2), left anchoring assembly (3) and right anchoring group
Part (4)；Counterbore, setting vehicle driving side along bridge are evenly distributed on the mobile fishback (1) and fixed broach plate (2)
To be it is longitudinal, when in-site installation, each unit is laterally arranged in parallel on bridge expanssion joint, is additionally provided between each unit laterally point
The transverse bar (14) of cloth；
Localized chiasma is disposed under the mobile fishback (1) and fixed broach plate (2) and is attached onto upper anti-
Dirt plate (5) and lower dust excluding plate (6)；The left side of the upper dust excluding plate (5) and mobile fishback (1) are connected, the right side of lower dust excluding plate (6)
Side and right anchoring assembly (4) are connected, and the left side and left anchoring assembly (3) of lower dust excluding plate (6) are connected；
The left anchoring assembly (3) and right anchoring assembly (4) are each straight including being in longitudinal equally distributed at least five blocks of upright steel plates
Vertical steel plate top is connected with mobile fishback (1) and the welding of fixed broach plate (2) bottom surface respectively, each upright lower part of steel plate respectively with
Embedded ribs (13) welding reserved on bridge is connected；
Process hole on the upright steel plate, described hole is used for the transverse bar through cross direction profiles, and when guiding in-site installation
The high-strength concrete poured is uniformly distributed；It is characterized by:
The lower dust excluding plate (6) below on the upright steel plate of right fastener inserts (4) along between, by stroke size be provided with to
The supporting element of few two groups of cross direction profiles, the supporting element include: channel steel (8) and supporting part (7), supporting part (7) top and
The lower surface of lower splash guard (6) is in close contact, and supporting part (7) is embedded in channel steel (8), and the channel steel (8) and upright steel plate weld
It is connected, the supporting part (7) is hard rubber material；The beneficial effect is that: play the role of defeating a force with a tenderness using the hard rubber band,
It reduces cargo impact force and provides synchronous displacement effect for telescopic device.
The lower dust excluding plate (6) between right fastener inserts (4) top, is additionally provided with baffle one (9) and block pulp below
Along welding on the upright steel plate of plate two (10), the baffle one (9) and baffle two (10) lower surface and right fastener inserts (4)
It is connected.
A kind of synchronous displacement bridge extension joint of the strong anchor prepressing type of unit as described above, it is characterised in that: the mobile comb
It is provided between tooth plate (1) and fixed broach plate (2) and upright steel plate high-strength bolt (17), high-strength bolt (17) upper end is logical
Nut is crossed to be screwed in counterbore, when in-site installation, the transverse bar (14) is not only connected with the welding of upright steel plate, but also with each high-strength bolt
(17) welding is connected.
A kind of synchronous displacement bridge extension joint of the strong anchor prepressing type of unit as described above, it is characterised in that: the high-strength spiral shell
Bar (17) lower end is provided with moment reinforcement (18), and when in-site installation, moment reinforcement (18) top and high-strength bolt (17) are welded
Connect connected, the lower part of moment reinforcement (18) and the preset embedded ribs in bridge end (13) welding are connected.The beneficial effect is that: due to
High-strength bolt lower end and transverse bar and embedded ribs secondary welding, in rigidly anchoring using welding integral unit and abutment embedded ribs
While stability overcomes shear fatigue of the fishback counterbore to screw rod, the prestressing force of high-strength bolt in counterbore is cooperated to prevent from stretching
Panel desoldering, solution solder joint fatigue cannot be synchronized and shear tired by overcoming existing two class anchor structure of comb-tooth bridge expansion device
The problem of labor, has avoided the deficiency of traditional technology.
Preferably, the upright steel plate of the left anchoring piece and right anchoring piece is supported, or is replaced by ring steel reinforced bar structure.
Further, the upright steel plate of the left anchoring piece and right anchoring piece is supported, or after being replaced by front end steel plate
End is the welding composite structure of moment reinforcement.
When the strong anchor prepressing type of invention unit synchronizes displacement bridge extension joint in-site installation, first by each straight of integral unit
Vertical steel plate and abutment embedded bar weld, and synchronization is secondary by the moment reinforcement transition of high-strength bolt lower end and abutment embedded bar
Welding, to reinforce the connected intensity of high-strength bolt and abutment, then casting concrete, after concrete curing intensity is met the requirements,
Nut is tightened after covering upper lock washer in the counterbore of fishback, and is pressurizeed with impact gun.
The medicine have the advantages that being overcome using the stability of welding integral unit and abutment embedded ribs rigidly anchored
Flexible panel counterbore can effectively prevent the desoldering of flexible panel to the shear fatigue of screw rod using the prestressing force of screw rod in turn,
The two is mutually reinforced, is mutually protected, and can effectively be solved existing fishback telescopic device and be held fatigable root problem.
Detailed description of the invention
Fig. 1 is a kind of present invention " strong anchor prepressing type of unit is synchronous to conjugate bridge extension joint " top view；
Fig. 2 is Fig. 1 along A-A to cross-sectional view；
Fig. 3 is the sectional structure chart for having additional moment reinforcement.
Description of symbols in figure:
1-mobile fishback, 2-fixed broach plates, 3-left fastener inserts, 4-right fastener inserts, 5-upper dust excluding plates, under 6-
Dust excluding plate, 7-supporting parts, 8-channel steels, 9-baffles one, 10-baffles two, the 11-high-strength concretes poured when installing,
12-pavement asphalts, 13-embedded ribs, 14-transverse bars, 15-water repellent components, 16-bridge end members, 17-high-strength bolts,
18-moment reinforcements.
Specific embodiment
Below in conjunction with attached drawing, embodiments of the present invention is further illustrated, and examples of the embodiments are shown in the accompanying drawings,
In which the same or similar labels are throughly indicated same or similar element or elements with the same or similar functions.Under
Face is exemplary by reference to the embodiment that attached drawing describes, it is intended to is used to explain the present invention, and be should not be understood as to the present invention
Limitation, any modification, equivalent replacement or improvement for being made all within the spirits and principles of the present invention etc. should be included in this
It within the scope of the claims of invention, is not addressed in detail in the technical program, is well-known technique.
As depicted in figs. 1 and 2, the synchronous displacement bridge extension joint of the strong anchor prepressing type of a kind of unit of the present invention, in modular
Structure, each unit include: the mobile fishback 1 arranged in opposite directions and fixed broach plate 2, left anchoring assembly 3 and right anchoring assembly 4；
It is evenly distributed with counterbore on the mobile fishback 1 and fixed broach plate 2, sets along bridge vehicle heading to be longitudinal,
When in-site installation, each unit is laterally arranged in parallel on bridge expanssion joint, and the transverse bar of cross direction profiles is additionally provided between each unit
14。
The upper dust excluding plate 5 being attached onto and lower anti-is disposed under the mobile fishback 1 and fixed broach plate 2
Dirt plate 6；The left side of the upper dust excluding plate 5 and mobile fishback 1 are connected, and the right side of lower dust excluding plate 6 and fixed broach plate 2 are connected.
The left anchoring assembly 3 and right anchoring assembly 4 are each straight including being in longitudinal equally distributed at least five blocks of upright steel plates
Vertical steel plate is connected with mobile fishback 1 and the welding of 2 bottom surface of fixed broach plate respectively, each upright lower part of steel plate respectively with it is pre- on bridge
The welding of embedded ribs 13 stayed is connected.
Hole is processed on the upright steel plate, described hole is used for the transverse bar 14 through cross direction profiles, and guides existing peace
The high-strength concrete poured when dress is uniformly distributed.
In the embodiment of the present invention, the lower dust excluding plate 6 is below between edge on the upright steel plate of right fastener inserts 4, by stretching
Contracting amount size is provided with the supporting element of two groups of cross direction profiles, and the supporting element includes: channel steel 8 and supporting part 7, the supporting part 7
Top and the lower surface of lower splash guard 6 are in close contact, and supporting part 7 is embedded in channel steel 8, and the channel steel 8 and the welding of upright steel plate are solid
Even, the supporting part 7 is hard rubber material.Play the role of defeating a force with a tenderness using the hard rubber band, reduces cargo impact force simultaneously
Synchronous displacement effect is provided for telescopic device.
The lower dust excluding plate 6 between right 4 top of fastener inserts, is additionally provided with baffle 1 and baffle 2 10 below,
It is connected on the upright steel plate of the baffle 1 and 2 10 lower surface of baffle and right fastener inserts 4 along welding.
As shown in Fig. 2, it is provided with high-strength bolt 17 between the mobile fishback 1 and fixed broach plate 2 and upright steel plate,
17 upper end of high-strength bolt is screwed in counterbore by nut, and when installing at the scene, the transverse bar 14 was both welded with upright steel plate
It connects connected and connected with the welding of each high-strength bolt 17.
Preferably, the support of the horizontally-parallel distribution more than two can be set according to bridge actual gap stroke size
Part.
With reference to Fig. 2, the right side of the shelves pulpboard 1 is in curved shape, shelves pulpboard 1 and shelves pulpboard 2 10 respectively with 8 bottom of channel steel
It is connected on the upright steel plate of side and right anchoring assembly 4 along welding, reaches block pulp purpose.
In the embodiment of the present invention, the supporting part 7 is chosen to be rubber support, and the top of supporting part 7 is in the circle to raise upward
Arcuation is planar.The length for setting the supporting part 7 is approximately equal to the width of mobile fishback 1 or fixed broach plate 2.
In the embodiment of the present invention, the mobile fishback 1 and fixed broach plate 2 and left anchoring assembly 3 and right anchoring assembly 4
Between connection type be welding be connected.That is: in advance in processing factory by the upright steel of mobile fishback 1 and left anchoring assembly 3
The upright steel plate of plate and lateral vertical plate welding, fixed broach plate 2 and right anchoring assembly 4 welds, and integral in factory-assembled
Unit.Then equally distributed counter sink is processed on integral unit fishback, correspondingly, high-strength bolt 17 is equipped in it, it is existing
When the installation of field, first the left anchoring assembly 3 of integral unit and right anchoring assembly 4 are welded with abutment two sides embedded ribs 13 respectively, then
17 lower end of high-strength bolt is welded with transverse bar 14, then casting concrete, after concrete curing intensity is met the requirements, in each comb
Nut is tightened after putting on lock washer in the counterbore of tooth plate, and is pressurizeed with impact gun.
With reference to Fig. 3, another embodiment of Fig. 2,17 lower end of high-strength bolt one side and the cross are different from for the present invention
The welding of muscle 14 is connected, and on the other hand, in the lower section of high-strength bolt 17, is additionally provided with moment reinforcement 18, and when in-site installation will bending
The upper end and 17 lower end of high-strength bolt of reinforcing bar 18 are welded, and the lower end of moment reinforcement 18 is welded with embedded ribs 13 again.It is this to pass through height
Strong 17 lower end of screw rod, 18 transition of moment reinforcement and 13 secondary welding mode of abutment embedded ribs, can reinforce high-strength bolt 17 and abutment
Connected intensity, then casting concrete covers upper locking after concrete curing intensity is met the requirements in the counterbore of each fishback
Nut is tightened after washer, and is pressurizeed with impact gun.
It should be understood that the upright steel plate of the support left anchoring piece and right anchoring piece, or it is replaced by cyclic annular steel
Muscle structure, the shape of the ring steel reinforced bar are consistent with the upright steel plate outside dimensions.
Further, the upright steel plate of the left anchoring piece and right anchoring piece is supported, or is replaced by front end steel plate, after
End is the welding composite structure of moment reinforcement, and the front end refers to one end close to bridge expanssion joint, and the moment reinforcement is with before
Steel plate welding is held to be connected.
The present invention, which is that a kind of strong anchor prepressing type of unit is synchronous, conjugates bridge extension joint, in mobile fishback and fixed broach
Under the premise of plate and anchor system are welded into integral unit, it is several heavy separately to machine on mobile fishback and fixed broach plate
Hole, the interior high-strength bolt being equipped with, high-strength bolt lower end and anchor system secondary welding, it is flexible to overcome existing interdigitated electrode structure bridge
Two class anchor structure of device, which cannot synchronize, solves the problems, such as solder joint fatigue and shear fatigue.It is pre- using welding integral unit and abutment
The stability rigidly anchored for burying muscle overcomes flexible panel counterbore to the shear fatigue of screw rod, while cooperating high-strength bolt in counterbore
Prestressing force prevent flexible panel desoldering, the two complements each other, and has avoided the deficiency of traditional technology.
In the embodiment of the present invention, the mobile fishback of the synchronous displacement bridge extension joint of the strong anchor prepressing type of each unit is constituted
And the transverse width of fixed broach plate is at least 1M, the synchronous displacement bridge extension joint of the strong anchor prepressing type of multiple groups unit is successively segmented
Construction, the synchronous displacement bridge extension joint of the strong anchor prepressing type of unit for being finally completed entire width of roadway is whole, near anticollision
Telescopic device is then pressed actually required width and is cut at wall.
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom" "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation ",
Terms such as " connected " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with
It is mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside a element, unless otherwise restricted clearly.For the common of this field
For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Claims (3)
- It is in cellular structure, each unit includes: opposite arrangement 1. a kind of strong anchor prepressing type of unit is synchronous to conjugate bridge extension joint Mobile fishback (1) and fixed broach plate (2), left anchoring assembly (3) and right anchoring assembly (4)；The mobile fishback (1) It is evenly distributed with counterbore on fixed broach plate (2), sets along bridge vehicle heading to be longitudinal, when in-site installation, respectively Unit transverse is arranged in parallel on bridge expanssion joint, and the transverse bar (14) of cross direction profiles is additionally provided between each unit；Localized chiasma is disposed under the mobile fishback (1) and fixed broach plate (2) and is attached onto upper anti- Dirt plate (5) and lower dust excluding plate (6)；The left side of the upper dust excluding plate (5) and mobile fishback (1) are connected, the right side of lower dust excluding plate (6) Side and right anchoring assembly (4) are connected, and the left side and left anchoring assembly (3) of lower dust excluding plate (6) are connected；The left anchoring assembly (3) and right anchoring assembly (4) are each straight including being in longitudinal equally distributed at least five blocks of upright steel plates Vertical steel plate top is connected with mobile fishback (1) and the welding of fixed broach plate (2) bottom surface respectively, each upright lower part of steel plate respectively with Embedded ribs (13) welding reserved on bridge is connected；Hole is processed on the upright steel plate, described hole is used for the transverse bar (13) through cross direction profiles, and guides existing installation When the high-strength concrete that pours be uniformly distributed；It is characterized by:The lower dust excluding plate (6) below on the upright steel plate of right fastener inserts (4) along between, be provided at least two groups laterally point The supporting element of cloth, the supporting element include: channel steel (8) and supporting part (7), supporting part (7) top and lower splash guard (6) Lower surface is in close contact, and supporting part (7) is embedded in channel steel (8), and the channel steel (8) and the welding of upright steel plate are connected, the support Band (7) is hard rubber material；The lower dust excluding plate (6) between right fastener inserts (4) top, is additionally provided with baffle one (9) and baffle two below (10), solid along welding on the upright steel plate of the baffle one (9) and baffle two (10) lower surface and right fastener inserts (4) Even.
- 2. the synchronous displacement bridge extension joint of the strong anchor prepressing type of a kind of unit as described in claim 1, it is characterised in that: the shifting It is provided with high-strength bolt (17) between dynamic fishback (1) and fixed broach plate (2) and upright steel plate, on the high-strength bolt (17) End is screwed in counterbore by nut, and when in-site installation, the transverse bar (14) is not only connected with the welding of upright steel plate, but with it is each high-strength Screw rod (17) welding is connected.
- 3. the synchronous displacement bridge extension joint of the strong anchor prepressing type of a kind of unit as claimed in claim 2, it is characterised in that: the height Strong screw rod (17) lower end is provided with moment reinforcement (18), when in-site installation, moment reinforcement (18) top and high-strength bolt (17) welding is connected, and the lower part of moment reinforcement (18) and the preset embedded ribs in bridge end (13) welding are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910417796.3A CN110258320A (en) | 2019-05-20 | 2019-05-20 | A kind of strong anchor prepressing type synchronization displacement expansion device of unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910417796.3A CN110258320A (en) | 2019-05-20 | 2019-05-20 | A kind of strong anchor prepressing type synchronization displacement expansion device of unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110258320A true CN110258320A (en) | 2019-09-20 |
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ID=67914831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910417796.3A Pending CN110258320A (en) | 2019-05-20 | 2019-05-20 | A kind of strong anchor prepressing type synchronization displacement expansion device of unit |
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| CN (1) | CN110258320A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809514A (en) * | 2020-07-31 | 2020-10-23 | 成都市长大路桥科技有限公司 | Riding type comb plate expansion device |
| CN112113841A (en) * | 2020-09-18 | 2020-12-22 | 山东和富工程检测有限公司 | Groove type embedded assembly anchoring tension bearing capacity test device |
-
2019
- 2019-05-20 CN CN201910417796.3A patent/CN110258320A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809514A (en) * | 2020-07-31 | 2020-10-23 | 成都市长大路桥科技有限公司 | Riding type comb plate expansion device |
| CN112113841A (en) * | 2020-09-18 | 2020-12-22 | 山东和富工程检测有限公司 | Groove type embedded assembly anchoring tension bearing capacity test device |
| CN112113841B (en) * | 2020-09-18 | 2023-12-08 | 山东和富工程检测有限公司 | Groove type embedded assembly anchoring tension bearing capacity test device |
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Effective date of registration: 20230426 Address after: 430223 Yangguang Chuanggu, Jiangxia Avenue, Jiangxia District, Wuhan City, Hubei Province Applicant after: WUHAN NAIJIU TELESCOPIC ENGINEERING CO.,LTD. Address before: 430070 Room 1-2501, Building 7, Block B, Dengjia New City, Maying Road, Hanyang District, Wuhan City, Hubei Province Applicant before: Liu Liyuan |
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