CN111705672A - Bridge construction is with dismantling strutting arrangement - Google Patents
Bridge construction is with dismantling strutting arrangement Download PDFInfo
- Publication number
- CN111705672A CN111705672A CN202010595221.3A CN202010595221A CN111705672A CN 111705672 A CN111705672 A CN 111705672A CN 202010595221 A CN202010595221 A CN 202010595221A CN 111705672 A CN111705672 A CN 111705672A
- Authority
- CN
- China
- Prior art keywords
- groove
- sliding
- fixedly connected
- sliding block
- bottom plate
- 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.)
- Withdrawn
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
- E04G25/065—Shores or struts; Chocks telescopic with parts held together by positive means by a threaded nut
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G2025/045—Shores or struts; Chocks telescopic which telescoping action effected by a lever
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to the technical field of bridge support, in particular to a detachable supporting device for bridge construction, which comprises a bottom plate and a supporting plate, wherein four corners of the bottom end of the bottom plate are fixedly connected with buffer seats, the left front side, the left rear side, the right front side and the right rear side of the top end of the bottom plate are respectively provided with a first sliding chute, a first sliding block is arranged inside the first sliding chute and is in sliding fit with the first sliding chutes, the inner threads of the first sliding block are connected with a first screw rod, one end of the first screw rod is rotatably connected with the inner side wall of the first sliding chute through a bearing, the other end of the first screw rod extends to the outer side of the bottom plate, the top end of the first sliding block is provided with a first groove, and one end of the first sliding block, which is far away from the central plane of the bottom plate; the novel bridge is convenient to disassemble, convenient to transport and carry, capable of adjusting the height of the novel bridge, convenient to support bridges of different heights, and capable of improving the stability and the practicability of the novel bridge.
Description
Technical Field
The invention relates to the technical field of bridge support, in particular to a detachable support device for bridge construction.
Background
As is well known, a bridge supporting device is a commonly used auxiliary tool in the bridge construction process, and with the development of the transportation industry, rural bridge construction including river bridges and land bridges has been increased, and people pay more and more attention to the use safety and the application flexibility of the bridge supporting device.
The bridge strutting arrangement who uses at present can not adjust its height, and is less to the holding power of bridge, and stability is relatively poor, and is not convenient for dismantle strutting arrangement, is not convenient for transport.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the detachable supporting device for bridge construction, which is convenient to disassemble, transport and carry, can adjust the height of the detachable supporting device, is convenient to support bridges with different heights, and improves the supporting stability and practicability of the detachable supporting device.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a detachable supporting device for bridge construction comprises a bottom plate and a supporting plate, wherein buffer seats are fixedly connected at the positions of four corners of the bottom end of the bottom plate, first sliding grooves are formed in the left front side, the left rear side, the right front side and the right rear side of the top end of the bottom plate, a first sliding block is arranged in each first sliding groove and is in sliding fit with the corresponding first sliding groove, a first screw rod is connected to the inner side wall of each first sliding groove in a threaded manner, one end of each first screw rod is rotatably connected with the inner side wall of each first sliding groove through a bearing, the other end of each first screw rod extends to the outer side of the bottom plate, a first groove is formed in the top end of each first sliding block, a circular groove extending into the corresponding first groove is formed in one end, away from the center plane of the bottom plate, screws penetrate through the circular grooves, a fixing column is arranged in the middle of the left side and the right side of the top end of, a support column is connected inside the first square groove in a sliding manner, the top end of the support column extends to the upper part of the fixed column, a first fixing lug is fixedly connected to the bottom end of the support plate, the bottom end of the first fixing lug is rotatably connected with a connecting rod through a first rotating shaft, the bottom end of the connecting rod is rotatably connected with a second fixing lug through a second rotating shaft, the bottom end of the second fixing lug is inserted into the first groove, a threaded hole is formed in the side end of the second fixing lug corresponding to the round groove, one end of the screw extending into the first groove is screwed into the threaded hole, the left side and the right side of the bottom end of the support plate are respectively provided with a second groove, a second sliding groove is formed in one side of the second groove far away from the central plane of the support plate, a second sliding block is connected inside the second sliding groove in a sliding manner, a compression spring is arranged inside the second sliding groove, one end of the compression spring close to the, the one end fixedly connected with pull rod of second recess is kept away from to the second slider, and the one end that the second slider was kept away from to the pull rod extends to the outside of backup pad, and the one end fixedly connected with card post that the second slider is close to the second recess is kept away from to the second slider, and the one end that the second slider was kept away from to the card post extends to the inside of second recess, the inside of second recess is inserted to the top of pillar, and the pillar is provided with the draw-in groove at the inside side of second recess, the inside of draw-in groove is inserted to the card post in the inside one end.
Preferably, an adjusting groove is formed in the fixing column below the first square groove, a first bevel gear and a second bevel gear are arranged in the adjusting groove, the first bevel gear is meshed with the second bevel gear, a rotating shaft is fixedly connected to one end, away from the central plane of the bottom plate, of the first bevel gear, one end, away from the first bevel gear, of the rotating shaft extends to the outer side of the fixing column, a second screw is fixedly connected to the top end of the second bevel gear, a second square groove is formed in the supporting column, a square block is connected to the inner portion of the second square groove in a sliding mode, the bottom end of the square block is connected with the top end of the second screw in a rotating mode, a supporting block is connected to the inner portion of the first square groove in a threaded mode on the outer side of the second screw.
Preferably, the bottom end of the buffer seat is fixedly connected with a fixing plate.
Preferably, one end of the first screw rod extending to the outer side of the bottom plate is fixedly connected with a first rotating handle.
Preferably, one end of the rotating shaft extending to the outer side of the fixed column is fixedly connected with a second rotating handle.
Preferably, one end of the pull rod, which is far away from the second sliding block, extends to one end of the outer side of the support plate, and a pull plate is fixedly connected to the end of the pull rod.
Preferably, a cushion pad is fixedly connected to the top end of the supporting plate.
(III) advantageous effects
Compared with the prior art, the invention provides a detachable supporting device for bridge construction, which has the following beneficial effects:
this bridge construction is with dismantling strutting arrangement, pass through screw fixed connection through the fixed ear of second and first slider, the pillar passes through card post and backup pad fixed connection, thereby be convenient for dismantle the device, be convenient for transport it, it rotates to make first screw rod rotate through rotatory first commentaries on classics, first screw rod rotates and drives first slider and slide the height-adjusting to the backup pad in first spout, be convenient for support not the bridge of co-altitude, it rotates the handle through rotatory second, the second is changeed and is rotated and drive the second screw rod and rotate, the second screw rod rotates and drive the supporting shoe and slide in the first square groove, and make the top of supporting shoe and the bottom contact of pillar support the pillar, prevent that the pillar from sliding in the first square groove, its stability to the bridge support has been improved, its practicality has been improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic left side sectional view of a portion of the structure of the present invention;
FIG. 3 is an enlarged schematic view of the invention at A of FIG. 1;
FIG. 4 is an enlarged view of the structure of FIG. 1 at B according to the present invention;
fig. 5 is a schematic cross-sectional view of the connection between the fixing post and the supporting post according to the present invention.
In the figure: 1. a base plate; 2. a support plate; 3. a buffer seat; 4. a first chute; 5. a first slider; 6. a first screw; 7. a first groove; 8. a circular groove; 9. a screw; 10. fixing a column; 11. a first square groove; 12. a pillar; 13. a first fixing lug; 14. a connecting rod; 15. a second fixing lug; 16. a threaded hole; 17. a second groove; 18. a second chute; 19. a second slider; 20. a compression spring; 21. a pull rod; 22. clamping the column; 23. a card slot; 24. an adjustment groove; 25. a first bevel gear; 26. a second bevel gear; 27. a rotating shaft; 28. a second screw; 29. a second square groove; 30. a square block; 31. a support block; 32. a fixing plate; 33. a first rotating handle; 34. a second rotating handle; 35. pulling a plate; 36. a cushion pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-5, a detachable supporting device for bridge construction comprises a bottom plate 1 and a supporting plate 2, wherein four corners of the bottom end of the bottom plate 1 are fixedly connected with a buffer seat 3, the device is buffered by the buffer seat 3, the bottom end of the buffer seat 3 is fixedly connected with a fixing plate 32, the fixing plate 32 is fixedly connected with the ground by expansion screws 9, the stability of the device is improved, the left front side, the left rear side, the right front side and the right rear side of the top end of the bottom plate 1 are respectively provided with a first sliding chute 4, a first sliding block 5 is arranged inside the first sliding chute 4, the first sliding block 5 is in sliding fit with the first sliding chute 4, a first screw rod 6 is connected with the inner thread of the first sliding block 5, one end of the first screw rod 6 is rotatably connected with the inner side wall of the first sliding chute 4 through a bearing, the other end of the first screw rod 6 extends to the outer side of the bottom plate 1, a first rotating handle 33 is fixedly connected with one end of the first screw rod, the first screw rod 6 is rotated by rotating the first rotating handle 33, the first screw rod 6 rotates to drive the first sliding block 5 to slide in the first sliding groove 4 to adjust the height of the supporting plate 2, bridges with different heights are conveniently supported, the top end of the first sliding block 5 is provided with a first groove 7, one end, away from the central plane of the bottom plate 1, of the first sliding block 5 is provided with a circular groove 8 extending into the first groove 7, a screw 9 is inserted into the circular groove 8, a fixed column 10 is arranged in the middle of the left side and the right side of the top end of the bottom plate 1, a first square groove 11 is arranged inside the fixed column 10, the inside of the first square groove 11 is connected with a supporting column 12 in a sliding manner, the top end of the supporting column 12 extends to the upper part of the fixed column 10, the bottom end of the supporting plate 2 is fixedly connected with a first fixing lug 13, and the bottom end of the first fixing lug 13, the bottom end of the connecting rod 14 is rotatably connected with a second fixing lug 15 through a second rotating shaft, the bottom end of the second fixing lug 15 is inserted into the first groove 7, a threaded hole 16 is arranged at the position, corresponding to the circular groove 8, of the side end of the second fixing lug 15, one end, extending to the inside of the first groove 7, of the screw 9 is screwed in the threaded hole 16, second grooves 17 are respectively arranged at the left side and the right side of the bottom end of the supporting plate 2, a second sliding groove 18 is arranged at one side, away from the central plane of the supporting plate 2, of the second groove 17 in the supporting plate 2, a second sliding block 19 is slidably connected to the inside of the second sliding groove 18, a compression spring 20 is arranged in the second sliding groove 18, one end, close to the second groove 17, of the compression spring 20 is in contact with one end, away from the second groove 17, of the second sliding block 19, one end, away from the second groove 17, of the second sliding block 19 is fixedly connected with a pull, one end fixedly connected with arm-tie 35 in the outside that the one end that second slider 19 was kept away from to pull rod 21 extends to backup pad 2, and second slider 19 is close to the one end fixedly connected with card post 22 of second recess 17, and the one end that second slider 19 was kept away from to card post 22 extends to the inside of second recess 17, the inside of second recess 17 is inserted to the top of pillar 12, and pillar 12 is provided with draw-in groove 23 at the inside side of second recess 17, card post 22 inserts the inside to draw-in groove 23 at the inside one end of second recess 17, makes card post 22 move to the inside of second spout 18 through pulling pull rod 21, makes card post 22 and draw-in groove 23 separation, is convenient for dismantle pillar 12, improves the stability that pillar 12 and backup pad 2 are connected in draw-in groove 23 through card post 22 card.
It should be further noted that an adjusting groove 24 is arranged in the fixed column 10 below the first square groove 11, a first bevel gear 25 and a second bevel gear 26 are arranged in the adjusting groove 24, the first bevel gear 25 is engaged with the second bevel gear 26, a rotating shaft 27 is fixedly connected to one end of the first bevel gear 25 away from the central plane of the base plate 1, one end of the rotating shaft 27 away from the first bevel gear 25 extends to the outside of the fixed column 10, a second rotating handle 34 is fixedly connected to one end of the rotating shaft 27 extending to the outside of the fixed column 10, a second screw 28 is fixedly connected to the top end of the second bevel gear 26, a second square groove 29 is arranged in the support column 12, a square block 30 is slidably connected to the inside of the second square groove 29, the bottom end of the square block 30 is rotatably connected to the top end of the second screw 28, a supporting block 31 is threadedly connected to the outside of the second screw 28 in the first square groove 11, supporting shoe 31 sets up in the below of pillar 12, changes 34 through rotatory second, and the second is changeed 34 and is rotated and drive second screw rod 28 and rotate, and second screw rod 28 rotates and drives supporting shoe 31 and slide in first square groove 11 to the top that makes supporting shoe 31 and the bottom contact of pillar 12 support pillar 12, prevent that pillar 12 from sliding in first square groove 11, improved its stability to the bridge supports, the top fixedly connected with blotter 36 of backup pad 2 plays the effect of buffer protection.
To sum up, when the detachable supporting device for bridge construction is used, firstly, the fixing plate 32 is fixed on the ground under the bridge through the expansion screws 9, then the four fixing lugs are respectively inserted into the first grooves 7, the screws 9 are inserted into the circular grooves 8, the screws 9 are screwed in the threaded holes 16 and screwed tightly on the screws 9 to fix the second fixing lugs 15, meanwhile, the top ends of the supporting columns 12 are inserted into the second grooves 17, the clamping columns 22 are clamped in the clamping grooves 23 to fix the supporting columns 12, then the first rotating handle 33 is rotated, the first rotating handle 33 is rotated to drive the first screw rod 6 to rotate, the first screw rod 6 is rotated to enable the first sliding blocks 5 to slide in the first sliding grooves 4 to adjust the distance between the left first sliding blocks 5 and the right first sliding blocks 5, when the distance between the left first sliding blocks 5 and the right sliding blocks 5 is reduced, the connecting rod 14 pushes the supporting plate 2 to move upwards, when the distance between the left sliding blocks 5 and the right sliding blocks is increased, connecting rod 14 pulling backup pad 2 moves down, thereby be convenient for highly adjusting the device, be convenient for support the not bridge of co-altitude, and the dynamics that adjustment backup pad 2 supported the bridge, change 34 through rotatory second, the second is changeed 34 and is rotated and drive second screw 28 and rotate, second screw 28 rotates and drives supporting shoe 31 and slide in first square groove 11, and make supporting shoe 31's top and pillar 12's bottom contact support pillar 12, prevent that pillar 12 from sliding in first square groove 11, the stability that it supported the bridge has been improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a bridge construction is with dismantling strutting arrangement which characterized in that: comprises a bottom plate (1) and a supporting plate (2), wherein buffer bases (3) are fixedly connected at the positions of four corners of the bottom end of the bottom plate (1), first sliding grooves (4) are respectively formed in the left front side, the left rear side, the right front side and the right rear side of the top end of the bottom plate (1), a first sliding block (5) is arranged inside each first sliding groove (4), each first sliding block (5) is in sliding fit with each first sliding groove (4), a first screw rod (6) is in threaded connection with the inside of each first sliding block (5), one end of each first screw rod (6) is rotatably connected with the inner side wall of each first sliding groove (4) through a bearing, the other end of each first screw rod (6) extends to the outer side of the bottom plate (1), a first groove (7) is formed in the top end of each first sliding block (5), one end, far away from the central plane of the bottom plate (1), is provided with a circular groove (8) extending to the inside of each first, a screw (9) is inserted into the round groove (8), a fixing column (10) is arranged in the middle of the left side and the right side of the top end of the bottom plate (1), a first square groove (11) is arranged inside the fixing column (10), a supporting column (12) is connected inside the first square groove (11) in a sliding manner, the top end of the supporting column (12) extends to the upper side of the fixing column (10), a first fixing lug (13) is fixedly connected to the bottom end of the supporting plate (2), a connecting rod (14) is rotatably connected to the bottom end of the first fixing lug (13) through a first rotating shaft, a second fixing lug (15) is rotatably connected to the bottom end of the connecting rod (14) through a second rotating shaft, the bottom end of the second fixing lug (15) is inserted into the first groove (7), a threaded hole (16) is formed in the position, corresponding to the round groove (8), and one end, extending to the inside of the first groove (7), of the screw (9) is screwed into the threaded hole (16), the left side and the right side of the bottom end of the supporting plate (2) are respectively provided with a second groove (17), a second sliding groove (18) is arranged in one side, far away from the central plane of the supporting plate (2), of the second groove (17) in the supporting plate (2), a second sliding block (19) is connected in the second sliding groove (18) in a sliding manner, a compression spring (20) is arranged in the second sliding groove (18), one end, close to the second groove (17), of the compression spring (20) is contacted with one end, far away from the second groove (17), of the second sliding block (19), one end, far away from the second groove (17), of the second sliding block (19) is fixedly connected with a pull rod (21), one end, far away from the second sliding block (19), of the pull rod (21) extends to the outer side of the supporting plate (2), one end, close to the second groove (17), of the second sliding block (19), of the block column (22) extends to the inside of the second groove (17), the top end of the support column (12) is inserted into the second groove (17), a clamping groove (23) is formed in the side end of the support column (12) in the second groove (17), and one end of the clamping column (22) in the second groove (17) is inserted into the clamping groove (23).
2. The detachable supporting device for bridge construction according to claim 1, wherein: an adjusting groove (24) is formed in the fixing column (10) below the first square groove (11), a first bevel gear (25) and a second bevel gear (26) are arranged in the adjusting groove (24), the first bevel gear (25) is meshed with the second bevel gear (26), one end, far away from the central plane of the bottom plate (1), of the first bevel gear (25) is fixedly connected with a rotating shaft (27), one end, far away from the first bevel gear (25), of the rotating shaft (27) extends to the outer side of the fixing column (10), the top end of the second bevel gear (26) is fixedly connected with a second screw (28), a second square groove (29) is formed in the support column (12), a square block (30) is connected to the inner portion of the second square groove (29) in a sliding mode, the bottom end of the square block (30) is rotatably connected with the top end of the second screw (28), a supporting block (31) is connected to the outer side of the second screw (28) in the first square groove (11) in a threaded mode, the support block (31) is disposed below the pillar (12).
3. The detachable supporting device for bridge construction according to claim 2, wherein: the bottom end of the buffer seat (3) is fixedly connected with a fixing plate (32).
4. The detachable supporting device for bridge construction according to claim 3, wherein: one end of the first screw rod (6) extending to the outer side of the bottom plate (1) is fixedly connected with a first rotating handle (33).
5. The detachable supporting device for bridge construction according to claim 4, wherein: one end of the rotating shaft (27) extending to the outer side of the fixed column (10) is fixedly connected with a second rotating handle (34).
6. The detachable supporting device for bridge construction according to claim 5, wherein: one end of the pull rod (21) far away from the second sliding block (19) extends to one end of the outer side of the support plate (2) and is fixedly connected with a pull plate (35).
7. The detachable supporting device for bridge construction according to claim 6, wherein: the top end of the supporting plate (2) is fixedly connected with a cushion pad (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010595221.3A CN111705672A (en) | 2020-06-24 | 2020-06-24 | Bridge construction is with dismantling strutting arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010595221.3A CN111705672A (en) | 2020-06-24 | 2020-06-24 | Bridge construction is with dismantling strutting arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111705672A true CN111705672A (en) | 2020-09-25 |
Family
ID=72542840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010595221.3A Withdrawn CN111705672A (en) | 2020-06-24 | 2020-06-24 | Bridge construction is with dismantling strutting arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111705672A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482750A (en) * | 2020-11-04 | 2021-03-12 | 金章明 | Support piece for mounting beam aluminum die |
| CN112502164A (en) * | 2020-12-04 | 2021-03-16 | 中国建筑第二工程局有限公司 | Civil engineering structure self-adaptation horizontal thrust controlling means |
| CN113136814A (en) * | 2021-04-27 | 2021-07-20 | 董玉英 | Mobile bridge support quick replacement support system and support method thereof |
| CN113233393A (en) * | 2021-06-01 | 2021-08-10 | 鹿婧 | Lifting type supporting device for bridge construction |
| CN113389371A (en) * | 2021-08-17 | 2021-09-14 | 烟建集团有限公司 | Early-dismantling formwork system and construction method thereof |
-
2020
- 2020-06-24 CN CN202010595221.3A patent/CN111705672A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482750A (en) * | 2020-11-04 | 2021-03-12 | 金章明 | Support piece for mounting beam aluminum die |
| CN112502164A (en) * | 2020-12-04 | 2021-03-16 | 中国建筑第二工程局有限公司 | Civil engineering structure self-adaptation horizontal thrust controlling means |
| CN112502164B (en) * | 2020-12-04 | 2022-01-28 | 中国建筑第二工程局有限公司 | Civil engineering structure self-adaptation horizontal thrust controlling means |
| CN113136814A (en) * | 2021-04-27 | 2021-07-20 | 董玉英 | Mobile bridge support quick replacement support system and support method thereof |
| CN113233393A (en) * | 2021-06-01 | 2021-08-10 | 鹿婧 | Lifting type supporting device for bridge construction |
| CN113233393B (en) * | 2021-06-01 | 2022-08-12 | 鹿婧 | Lifting type supporting device for bridge construction |
| CN113389371A (en) * | 2021-08-17 | 2021-09-14 | 烟建集团有限公司 | Early-dismantling formwork system and construction method thereof |
| CN113389371B (en) * | 2021-08-17 | 2021-11-02 | 烟建集团有限公司 | Early-dismantling formwork system and construction method thereof |
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Application publication date: 20200925 |