CN107119558A - A kind of bridge extension joint of strong applicability - Google Patents
A kind of bridge extension joint of strong applicability Download PDFInfo
- Publication number
- CN107119558A CN107119558A CN201710471621.1A CN201710471621A CN107119558A CN 107119558 A CN107119558 A CN 107119558A CN 201710471621 A CN201710471621 A CN 201710471621A CN 107119558 A CN107119558 A CN 107119558A
- Authority
- CN
- China
- Prior art keywords
- shaped steel
- side bar
- sliding
- bar shaped
- intermediate beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 102
- 239000010959 steel Substances 0.000 claims abstract description 102
- 239000003292 glue Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000005728 strengthening Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of bridge extension joint of strong applicability, including two side bar shaped steel, it is arranged on the intermediate beam shaped steel between two side bar shaped steel, sliding crossbeam and water-stop glue band, described two side bar shaped steel are symmetricly set on the left and right sides of described intermediate beam shaped steel, the intermediate beam shaped steel is connected with two side bar shaped steel by broach engagement, the bottom of the side bar shaped steel is provided with sliding case, sliding chamber is provided with described sliding case, the right and left of the sliding crossbeam distinguishes frame in the sliding intracavitary of left and right sides beam type steel, described sliding crossbeam upper end and the bottom of intermediate beam shaped steel is movably hinged, water-stop glue band is respectively connected between described intermediate beam shaped steel and the side bar shaped steel of the left and right sides.A kind of bridge extension joint of strong applicability of the present invention, using the structure type of the setting intermediate beam shaped steel of two side bar shaped steel, with stronger telescopicing performance, meets big displacement, tilts displacement, be favorably improved the performance of vehicle smooth-ride.
Description
【Technical field】
The present invention relates to the technical field of Expansion Units for Highway Bridges, the flexible dress of more particularly to a kind of bridge of strong applicability
Put.
【Background technology】
To meet the requirement of bridge floor deformation, generally between two beam-ends, between beam-ends and abutment or bridge articulated position
Upper setting retractor device.Bridge extension joint is the important component in bridge floor structure, and his quality directly affects car
The service life of driving performance and bridge, its major function is to adapt to beam body due to by the temperature difference, concrete drying shrinkage, in advance should
Conjugated caused by the contraction of power concrete creep and load action etc., play a part of structure under joint seal protection bridge.Current is flexible
Device telescopicing performance is relatively low, and the gap being easily caused between two beam-ends is larger, causes vehicle to smoothly pass the connection of two beam-ends
Place.To solve problem above, it is necessary to propose a kind of bridge extension joint of strong applicability.
【The content of the invention】
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of flexible dress of bridge of strong applicability
Put, it aims to solve the problem that retractor device telescopicing performance is relatively low in the prior art, and the gap being easily caused between two beam-ends is larger, causes car
It can not smoothly pass the technical problem of the junction of two beam-ends.
To achieve the above object, the present invention proposes a kind of bridge extension joint of strong applicability, including two side bar types
Steel, is arranged on the intermediate beam shaped steel between two side bar shaped steel, sliding crossbeam and water-stop glue band, two described side bar shaped steel pair
Claim the left and right sides for being arranged on described intermediate beam shaped steel, described intermediate beam shaped steel is nibbled with two side bar shaped steel by broach
Connection is closed, the bottom of described side bar shaped steel, which is provided with sliding case, described sliding case, is provided with sliding chamber, described cunning
The right and left for moving crossbeam distinguishes frame in the sliding intracavitary of left and right sides beam type steel, described sliding crossbeam upper end and intermediate beam
The bottom of shaped steel is movably hinged, and water-stop glue band is respectively connected between described intermediate beam shaped steel and the side bar shaped steel of the left and right sides.
Preferably, described sliding chamber is the U-shape structure of side mouth, the sliding chamber on the side bar shaped steel of the left and right sides
Opening is set inwardly relatively, is embedded with tetrafluoro slide plate on the bottom surface of described sliding chamber, is set on the bottom surface of described sliding crossbeam
Stainless steel plate is equipped with, described sliding crossbeam is connected with sliding chamber by stainless steel plate with tetrafluoro slide plate slides.
Preferably, the crown center of described sliding crossbeam is provided with lower connecting portion, described centre along direction across bridge
Direction across bridge is provided with upper connecting portion, described lower connecting portion and the interlocking of upper connecting portion in the middle of the bottom of beam type steel, and passed through
Strengthen axis of rotation connection.
Preferably, described upper connecting portion and lower connecting portion are staggered.
Preferably, described lower connecting portion is in the rear and front end of sliding crossbeam, described upper connecting portion is under two
Between connecting portion, each lower connecting portion is connected with upper connecting portion by strengthening rotating shaft.
Preferably, the top both sides of described intermediate beam shaped steel are symmetrically arranged with the first upper comb dent, described side bar type
The top side of steel is provided with the second upper comb dent, and the bottom both sides of described intermediate beam shaped steel are symmetrically arranged with first time broach,
The side of described side bar shaped steel is provided with second time broach, and described intermediate beam shaped steel and side bar shaped steel are by combing on first
Tooth is engaged with the second upper comb dent, first time broach is realized with second time broach engagement and be connected, and second time described broach, which is located at, to be slided
Move between chamber and the second upper comb dent.
Preferably, the first described upper comb dent is staggered with first time broach, the second described upper comb dent and second
Lower broach is staggered.
Preferably, described intermediate beam shaped steel both sides are provided with twice between the first upper comb dent and first time broach
First water stopping trough, described side bar shaped steel is provided with the twice corresponding with the water stopping trough of twice first below the second upper comb dent
Second water stopping trough, water-stop glue band is mounted between the described water stopping trough of per pass first and corresponding second water stopping trough.
Preferably, spaced set has some ribs between the top of described side bar shaped steel and the outside for sliding case
Plate.
Beneficial effects of the present invention：Compared with prior art, the flexible dress of the bridge for a kind of strong applicability that the present invention is provided
Put, it is rational in infrastructure, using the structure type of the setting intermediate beam shaped steel of two side bar shaped steel, add stretching for bridge extension joint
Contracting scope, with stronger telescopicing performance, and intermediate beam shaped steel engages connection with the side bar shaped steel broach of both sides, it is ensured that middle
Remain able to overlap in the case of big displacement between beam type steel and side bar shaped steel, can smooth transition, improve vehicle in beam-ends
The smooth-ride performance at place；The high intensity sliding crossbeam that intermediate beam shaped steel is by way of axle turns and frame is between the beam type steel of both sides
Connection, bridge along along bridge to can also meet inclination displacement in the case of inclined, with larger performance.
The feature and advantage of the present invention will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is a kind of structural representation of the bridge extension joint of strong applicability of the embodiment of the present invention；
Fig. 2 is a kind of explosive view of the bridge extension joint of strong applicability of the embodiment of the present invention；
Fig. 3 is the top view of the sliding crossbeam of the embodiment of the present invention one；
Fig. 4 is the top view of the sliding crossbeam of the embodiment of the present invention two.
In figure：1- side bars shaped steel, 11- slidings case, 12- slidings chamber, 13- tetrafluoros slide plate, the upper comb dents of 14- second, 15- second
Lower broach, the water stopping troughs of 16- second, 17- deep floors, 2- intermediate beams shaped steel, the upper connecting portions of 21-, the upper comb dents of 22- first, 23-
Once connecting portion, 4- water-stop glues band, 5- strengthen turning under broach, the water stopping troughs of 24- first, 3- sliding crossbeams, 31- stainless steel plates, 32-
Axle.
【Embodiment】
To make the object, technical solutions and advantages of the present invention of greater clarity, below by drawings and Examples, to this
Invention is further elaborated.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention,
The scope being not intended to limit the invention.In addition, in the following description, the description to known features and technology is eliminated, to keep away
Exempt from unnecessarily to obscure idea of the invention.
Refering to Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of bridge extension joint of strong applicability, including two side bars
Shaped steel 1, is arranged on the intermediate beam shaped steel 2 between two side bar shaped steel 1, sliding crossbeam 3 and water-stop glue band 4, two described sides
Beam type steel 1 is symmetricly set on the left and right sides of described intermediate beam shaped steel 2, described intermediate beam shaped steel 2 and two side bar shaped steel 1
Engaged and connected by broach, the bottom of described side bar shaped steel 1, which is provided with sliding case 11, described sliding case 11, to be set
There is a sliding chamber 12, the right and left difference frame of described sliding crossbeam 3 is in the sliding chamber 12 of left and right sides beam type steel 1, institute
The upper end of sliding crossbeam 3 and the bottom of intermediate beam shaped steel 2 stated are movably hinged, described intermediate beam shaped steel 2 and the side of the left and right sides
Water-stop glue band 4 is respectively connected between beam type steel 1.
Further, described sliding chamber 12 is the cunning on the U-shape structure of side mouth, the side bar shaped steel 1 of the left and right sides
Move chamber 12 to be open and sets inwardly relatively, tetrafluoro slide plate 13, described sliding crossbeam 3 are embedded with the bottom surface of described sliding chamber 12
Bottom surface on be provided with stainless steel plate 31, described sliding crossbeam 3 passes through stainless steel plate 31 and tetrafluoro slide plate 13 with sliding chamber 12
It is slidably connected.Realizing the sliding crossbeam 3 in the case of displacement can slide in sliding chamber 12.
Further, the crown center of described sliding crossbeam 3 is provided with lower connecting portion 32 along direction across bridge, it is described in
Between beam type steel 2 bottom in the middle of direction across bridge is provided with upper connecting portion 21, described lower connecting portion 32 and upper connecting portion 21 is embedding
Connect, and connection is rotated by strengthening rotating shaft 5, intermediate beam shaped steel 2 is connected with the pivoting of sliding crossbeam 3, realizes the feelings in corner
Sliding crossbeam 3 can rotate under condition, realize steady connection.
Further, the top both sides of described intermediate beam shaped steel 2 are symmetrically arranged with the first upper comb dent 22, described side bar
The top side of shaped steel 1 is provided with the second upper comb dent 14, and the bottom both sides of described intermediate beam shaped steel 2 are symmetrically arranged with first
Broach 23, the side of described side bar shaped steel 1 is provided with second time broach 15, and described intermediate beam shaped steel 2 and side bar shaped steel 1 is equal
Engaged by the first upper comb dent 22 with the second upper comb dent 14, first time broach 23 is realized with second time engagement of broach 15 and be connected, institute
The second time broach 15 stated is located between the sliding upper comb dent 14 of chamber 12 and second, the first described upper comb dent 22 and first time broach
23 are staggered, and the second described upper comb dent 14 is staggered with second time broach 15.
Further, the described both sides of intermediate beam shaped steel 2 are set between the first upper comb dent 22 and first time broach 23
The first water stopping trough of twice 24 is equipped with, described side bar shaped steel 1 is provided with and the sealing of twice first in the lower section of the second upper comb dent 14
Corresponding the second water stopping trough of twice 16 of groove 24, between described the first water stopping trough of per pass 24 and corresponding second water stopping trough 16
Water-stop glue band 4 is installed, spaced set there are some reinforcements between the described top of side bar shaped steel 1 and the outside of sliding case 11
Floor 17.
Embodiment one, refering to Fig. 3, described upper connecting portion 21 and lower connecting portion 32 are staggered.
Embodiment two, refering to Fig. 4, described lower connecting portion 32 is located at the rear and front end of sliding crossbeam 3, described upper connection
Portion 21 is located between twice connecting portions 32, and each lower connecting portion 32 is connected with upper connecting portion 21 by strengthening rotating shaft 5.
Beneficial effects of the present invention：Compared with prior art, the flexible dress of the bridge for a kind of strong applicability that the present invention is provided
Put, it is rational in infrastructure, using the structure type of the setting intermediate beam shaped steel 2 of two side bar shaped steel 1, add bridge extension joint
Telescopic extensions, with stronger telescopicing performance, and intermediate beam shaped steel 2 is connected with the broach of side bar shaped steel 1 engagement of both sides, it is ensured that
Remain able to overlap in the case of big displacement between intermediate beam shaped steel 2 and side bar shaped steel 1, being capable of smooth transition, raising vehicle
Smooth-ride performance at beam-ends；The high intensity that intermediate beam shaped steel 2 is by way of axle turns and frame is between both sides beam type steel 1
Sliding crossbeam 3 is connected, bridge along along bridge to can also meet inclination displacement in the case of inclined, with larger performance.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent substitution or improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. a kind of bridge extension joint of strong applicability, it is characterised in that：Including two side bar shaped steel (1), two sides are arranged on
Intermediate beam shaped steel (2) between beam type steel (1), sliding crossbeam (3) and water-stop glue band (4), two described side bar shaped steel (1) are right
Claim the left and right sides for being arranged on described intermediate beam shaped steel (2), described intermediate beam shaped steel (2) and two side bar shaped steel (1) is equal
Engaged and connected by broach, the bottom of described side bar shaped steel (1) is provided with sliding case (11), described sliding case (11)
Sliding chamber (12) is provided with, the right and left of described sliding crossbeam (3) distinguishes frame in the sliding of left and right sides beam type steel (1)
In chamber (12), described sliding crossbeam (3) upper end and the bottom of intermediate beam shaped steel (2) is movably hinged, described intermediate beam shaped steel
(2) water-stop glue band (4) is respectively connected between the side bar shaped steel (1) of the left and right sides.
2. a kind of bridge extension joint of strong applicability as claimed in claim 1, it is characterised in that：Described sliding chamber (12)
For the U-shape structure of side mouth, sliding chamber (12) opening on the side bar shaped steel (1) of the left and right sides is set inwardly relatively, described
Sliding chamber (12) bottom surface on be embedded with tetrafluoro slide plate (13), be provided with stainless steel on the bottom surface of described sliding crossbeam (3)
Plate (31), described sliding crossbeam (3) is slidably connected with sliding chamber (12) by stainless steel plate (31) with tetrafluoro slide plate (13).
3. a kind of bridge extension joint of strong applicability as claimed in claim 1, it is characterised in that：Described sliding crossbeam
(3) crown center is provided with lower connecting portion (32) along direction across bridge, along horizontal stroke in the middle of the bottom of described intermediate beam shaped steel (2)
Bridge is rabbeted to upper connecting portion (21), described lower connecting portion (32) and upper connecting portion (21) is provided with, and by strengthening rotating shaft (5)
Rotate connection.
4. a kind of bridge extension joint of strong applicability as claimed in claim 3, it is characterised in that：Described upper connecting portion
(21) it is staggered with lower connecting portion (32).
5. a kind of bridge extension joint of strong applicability as claimed in claim 3, it is characterised in that：Described lower connecting portion
(32) be located at the rear and front end of sliding crossbeam (3), described upper connecting portion (21) is located between twice connecting portions (32), each under
Connecting portion (32) is connected with upper connecting portion (21) by strengthening rotating shaft (5).
6. a kind of bridge extension joint of strong applicability as claimed in claim 1, it is characterised in that：Described intermediate beam shaped steel
(2) top both sides are symmetrically arranged with the first upper comb dent (22), and the top side of described side bar shaped steel (1) is provided with second
Broach (14), the bottom both sides of described intermediate beam shaped steel (2) are symmetrically arranged with first time broach (23), described side bar shaped steel
(1) side is provided with second time broach (15), and described intermediate beam shaped steel (2) and side bar shaped steel (1) are by combing on first
Tooth (22) is engaged with the second upper comb dent (14), first time broach (23) is realized with second time broach (15) engagement and be connected, described
Second time broach (15) is located between sliding chamber (12) and the second upper comb dent (14).
7. a kind of bridge extension joint of strong applicability as claimed in claim 6, it is characterised in that：The first described upper comb dent
(22) it is staggered with first time broach (23), described the second upper comb dent (14) is staggered with second time broach (15).
8. a kind of bridge extension joint of strong applicability as claimed in claim 6, it is characterised in that：Described intermediate beam shaped steel
(2) both sides are provided with the water stopping trough of twice first (24) between the first upper comb dent (22) and first time broach (23), described
Side bar shaped steel (1) is provided with the twice second corresponding with the water stopping trough of twice first (24) below the second upper comb dent (14) to be stopped
Tank (16), water-stop glue band is mounted between the described water stopping trough of per pass first (24) and corresponding second water stopping trough (16)
(4)。
9. a kind of bridge extension joint of strong applicability as claimed in claim 1, it is characterised in that：Described side bar shaped steel
(1) spaced set has some deep floors (17) between top and the outside of sliding case (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710471621.1A CN107119558A (en) | 2017-06-20 | 2017-06-20 | A kind of bridge extension joint of strong applicability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710471621.1A CN107119558A (en) | 2017-06-20 | 2017-06-20 | A kind of bridge extension joint of strong applicability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107119558A true CN107119558A (en) | 2017-09-01 |
Family
ID=59718633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710471621.1A Pending CN107119558A (en) | 2017-06-20 | 2017-06-20 | A kind of bridge extension joint of strong applicability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107119558A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609361A (en) * | 2018-04-27 | 2018-10-02 | 中国二十冶集团有限公司 | A kind of across expansion joint deformation adjustment method of dummy car track |
| CN109629408A (en) * | 2019-01-08 | 2019-04-16 | 中冶南方工程技术有限公司 | A kind of Double slit type expansion joint of comb plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0215980A1 (en) * | 1985-09-23 | 1987-04-01 | Marcel Vecchi | A grating bar-type bridging device for expansion joints in bridges |
| DE8916127U1 (en) * | 1989-06-02 | 1994-03-03 | Friedrich Maurer Söhne GmbH & Co KG, 80807 München | Device for resilient clamping of trusses of a roadway bridging construction |
| JP2000257013A (en) * | 1999-03-09 | 2000-09-19 | Nippon Chuzo Kk | Expansion joint device |
| EP1334235A1 (en) * | 2000-11-06 | 2003-08-13 | C/S Constructions Specialties Limited | Expansion joint |
| CN202220324U (en) * | 2011-09-29 | 2012-05-16 | 衡水橡胶股份有限公司 | Multidirectional displacement modulus type bridge telescopic device |
| CN102518037A (en) * | 2011-12-16 | 2012-06-27 | 成都市新筑路桥机械股份有限公司 | Expansion device for extra-large displacement bridge |
| CN203583357U (en) * | 2013-11-18 | 2014-05-07 | 中国交通企业管理协会路桥配套产品工作委员会 | Expansion and contraction device |
| CN103911947A (en) * | 2014-04-01 | 2014-07-09 | 秦皇岛路桥建设开发有限公司 | Bridge extending and contracting device |
| CN203768802U (en) * | 2014-04-01 | 2014-08-13 | 苏玉明 | Highway bridge expansion joint device |
| CN105696463A (en) * | 2016-03-23 | 2016-06-22 | 成都新筑展博环保科技有限公司 | Bridge expansion and retraction device |
| US20160289967A1 (en) * | 2013-11-28 | 2016-10-06 | Maurer Sohne Engineering Gmbh & Co. Kg | Bridging device |
| CN206928184U (en) * | 2017-06-20 | 2018-01-26 | 浙江秦山橡胶工程股份有限公司 | A kind of bridge extension joint of strong applicability |
-
2017
- 2017-06-20 CN CN201710471621.1A patent/CN107119558A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0215980A1 (en) * | 1985-09-23 | 1987-04-01 | Marcel Vecchi | A grating bar-type bridging device for expansion joints in bridges |
| DE8916127U1 (en) * | 1989-06-02 | 1994-03-03 | Friedrich Maurer Söhne GmbH & Co KG, 80807 München | Device for resilient clamping of trusses of a roadway bridging construction |
| JP2000257013A (en) * | 1999-03-09 | 2000-09-19 | Nippon Chuzo Kk | Expansion joint device |
| EP1334235A1 (en) * | 2000-11-06 | 2003-08-13 | C/S Constructions Specialties Limited | Expansion joint |
| CN202220324U (en) * | 2011-09-29 | 2012-05-16 | 衡水橡胶股份有限公司 | Multidirectional displacement modulus type bridge telescopic device |
| CN102518037A (en) * | 2011-12-16 | 2012-06-27 | 成都市新筑路桥机械股份有限公司 | Expansion device for extra-large displacement bridge |
| CN203583357U (en) * | 2013-11-18 | 2014-05-07 | 中国交通企业管理协会路桥配套产品工作委员会 | Expansion and contraction device |
| US20160289967A1 (en) * | 2013-11-28 | 2016-10-06 | Maurer Sohne Engineering Gmbh & Co. Kg | Bridging device |
| CN103911947A (en) * | 2014-04-01 | 2014-07-09 | 秦皇岛路桥建设开发有限公司 | Bridge extending and contracting device |
| CN203768802U (en) * | 2014-04-01 | 2014-08-13 | 苏玉明 | Highway bridge expansion joint device |
| CN105696463A (en) * | 2016-03-23 | 2016-06-22 | 成都新筑展博环保科技有限公司 | Bridge expansion and retraction device |
| CN206928184U (en) * | 2017-06-20 | 2018-01-26 | 浙江秦山橡胶工程股份有限公司 | A kind of bridge extension joint of strong applicability |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609361A (en) * | 2018-04-27 | 2018-10-02 | 中国二十冶集团有限公司 | A kind of across expansion joint deformation adjustment method of dummy car track |
| CN108609361B (en) * | 2018-04-27 | 2020-03-20 | 中国二十冶集团有限公司 | Method for adjusting deformation of track of unloading car across expansion joint |
| CN109629408A (en) * | 2019-01-08 | 2019-04-16 | 中冶南方工程技术有限公司 | A kind of Double slit type expansion joint of comb plate |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170901 |
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| RJ01 | Rejection of invention patent application after publication |