CN114108489B - Auxiliary device for installing pushing support in steel beam pushing construction - Google Patents
Auxiliary device for installing pushing support in steel beam pushing construction Download PDFInfo
- Publication number
- CN114108489B CN114108489B CN202111561425.6A CN202111561425A CN114108489B CN 114108489 B CN114108489 B CN 114108489B CN 202111561425 A CN202111561425 A CN 202111561425A CN 114108489 B CN114108489 B CN 114108489B
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- fixedly connected
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- shell
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 43
- 239000010959 steel Substances 0.000 title claims abstract description 43
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 230000006978 adaptation Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the technical field of pushing construction and discloses an auxiliary device and method for installing a pushing support for steel beam pushing construction, the auxiliary device comprises a bottom plate, a base is arranged at the top of the bottom plate, a pushing machine is arranged at the top of the base, a plurality of rollers are arranged at the bottom of the base in an array mode, sliding blocks are fixedly connected to two sides of the base, auxiliary structures are arranged at the top and the bottom of the sliding blocks, each auxiliary structure comprises a limiting rod, a movable rod and a fixing rod.
Description
Technical Field
The invention relates to the technical field of pushing construction, in particular to an auxiliary device for installing a pushing support in steel beam pushing construction.
Background
The pushing construction method is mostly applied to the construction of prestressed reinforced concrete constant-section continuous beam bridges and cable-stayed bridges. The construction method is characterized in that the beam body is poured or assembled section by section at the bridge head, and is longitudinally pushed by a jack, so that the beam body is positioned through the temporary sliding support surface of each pier top. The pushing construction is to set a construction site behind the bridge abutment, cast the beam body in sections, integrate the cast sections with the finished Liang Tilian by longitudinal prestress ribs, install steel guide beams with the length of a designated proportion of the pushing span in front of the beam body, and then force the beam body to push the beam body out of the construction site forwards by a horizontal jack. The construction of all beam bodies can be completed by repeating the procedures, the traffic under the bridge is not influenced during pushing construction, large-scale hoisting equipment is not needed, and high-altitude operation is not needed, so that the method is particularly suitable for construction of ultra-large span bridges, long-line bridge approach or three-dimensional intersection of urban bridges; the beam section is periodically constructed on a fixed field, so that the construction quality and the construction progress are easy to ensure, but the pushing construction method also has some defects that the geometric shape of the bridge structure is more limited, and the variable-section beam section, the curve beam shaft and the variable-gradient bridge cannot be subjected to pushing construction.
Because most of the existing steel beams are operated by using a pushing machine, the existing steel beams are required to be placed under the bottom of the steel beams when the pushing machine is installed, larger deflection cannot be generated, otherwise, slight displacement of the steel beams during pushing is difficult to observe, and if the pushing machine is operated continuously at the moment, the moving track of the steel beams is gradually deflected, so that the integral construction of the later-stage steel beams is influenced.
Disclosure of Invention
(One) solving the technical problems
The problem that position deviation is not easy to find and adjust when the pushing machine is installed is solved.
Disclosure of Invention
In order to solve the technical problems, the technical scheme adopted by the embodiment of the invention is as follows: the utility model provides a girder steel pushes away construction and pushes away auxiliary device for support installation, includes the bottom plate, the top of bottom plate is provided with the base, the top of base is provided with the pushing machine, the bottom array of base has a plurality of gyro wheel, the equal fixedly connected with slider in both sides of base, the top and the bottom of slider are provided with auxiliary structure, auxiliary structure includes the gag lever post, the movable rod, the dead lever, the shell, the runner, the movable block, the screw rod, the movable rod, scale mark and spring, works as can follow outside horizontal migration in the shell when the gag lever post receives an outside pulling force, the distance that the gag lever post received the pulling force to remove can carry out horizontal fore-and-aft movement control through rotatory screw rod control base and get back initial position.
Preferably, the top fixedly connected with shell of slider, the front and the back of shell inner wall all fixedly connected with spring, the front fixedly connected with movable rod of spring, the front of movable rod runs through the shell and extends to the outside of shell, one side of movable rod is provided with the scale mark, the front fixedly connected with dead lever of movable rod.
Preferably, the front of dead lever rotates and is connected with the movable rod, the top fixedly connected with gag lever post of movable rod, the back of gag lever post rotates and is connected with the runner, the bottom fixedly connected with movable block of slider, the bottom of movable block runs through the bottom plate and extends to the inside of bottom plate, the screw hole has been seted up to the front of movable block.
Preferably, the screws are rotatably connected to two sides of the front surface of the inner wall of the bottom plate, the screws are matched with the threaded holes, the front surfaces of the two screws penetrate through the bottom plate and extend to the outside of the bottom plate, and the front surfaces of the two screws are fixedly connected with driven wheels.
Preferably, one side of the bottom plate is fixedly connected with a shell, a motor is arranged at the bottom of the inner wall of the shell, an output shaft of the motor penetrates through the shell and extends to the outside of the shell, a power wheel is fixedly connected to the front face of the motor, and the surface of the power wheel is in transmission connection with the surface of the driven wheel through a belt.
Preferably, the two sides of the top of the bottom plate are fixedly connected with brackets, the tops of the two brackets are fixedly connected with top plates, the bottoms of the opposite sides of the two brackets are fixedly connected with sliding rails, and the sliding rails are matched with the sliding blocks.
Preferably, the bottom of the inner wall of the base is fixedly connected with a partition board, movable rails are symmetrically distributed between the front surface and the back surface of the inner wall of the base, one side of each movable rail is slidably connected with a fixed plate, the other side of each fixed plate penetrates through the other movable rail and extends to the outside of each movable rail, and the other side of each fixed plate is fixedly connected with a movable block.
Preferably, the back fixedly connected with fixation clamp of fixed plate, semicircular groove has been seted up to the back of fixation clamp, semicircular groove's back fixedly connected with rubber pad, the standing groove has been seted up at the top of base, the standing groove is located the fixation clamp directly over, standing groove and pushing away quick-witted looks adaptation.
Preferably, the two sides of the front of the inner wall of the base are respectively connected with a pair of threaded rods in a rotating mode, the two pairs of threaded rods are matched with the movable block, and the front of the two pairs of threaded rods penetrate through the base and extend to the outside of the base.
Preferably, the front faces of the two pairs of threaded rods are fixedly connected with rotating discs, and the front faces of the two rotating discs are rotatably connected with handles.
Compared with the prior art, the auxiliary structure is arranged on the base, the auxiliary structure checks whether the position is installed correctly through the four limiting rods when the pushing machine is installed, if a certain offset is installed, the two limiting rods can drive the moving rods to stretch outwards, the moving rods are also provided with the scale marks, a user can observe the deviation distance of the bridge body of the steel girder rapidly through the outwards moving distance of the moving rods, if the deviation is observed, the base can be adjusted through the rotation of the motor control screw, the base and the pushing machine are adjusted to be under the steel girder at the fastest speed, the situation that the later pushing steel girder has slight offset and stress points are not in the same straight line with other pushing machines due to the deviation when the pushing machine is installed is effectively prevented, the construction of the steel girder is affected, the limiting rod is also provided with a rotating wheel, the rotating wheel can be matched with the movable rod to deform the bottoms of various irregularly-shaped steel beams in a small range, so that the rotating wheel can adapt to the bottoms of various steel beams, a torque spring is arranged at the rotating joint of the movable rod and the fixed rod, the limiting rod and the movable rod can be changed into an initial shape after the steel beams are disassembled after being installed, a fixing clamp is also arranged on the base, the fixing clamp can control and loosen and clamp a threaded rod through rotation, the fixing clamp is matched with a placing groove to fix four support legs of the pushing machine, thus pushing can not be displaced when the base is adjusted in position, secondary deviation is caused, the fixing clamp can control tightness through manual shaking, the rotating adjustment is quick and convenient, a rubber pad is also arranged on the fixing clamp, the rubber pad can increase the friction force with the surface of a support leg of the pushing machine, the clamping of the fixing clamp is firmer, and the surface of the supporting leg of the pushing machine can be protected from being scratched by the fixing clamp when being clamped.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the technology disclosed.
Drawings
FIG. 1 is a schematic front view of the external structure of the present invention;
FIG. 2 is a schematic front view of the outer structure of the base of the present invention;
FIG. 3 is an enlarged schematic view of the structure of the present invention at A;
FIG. 4 is a schematic elevational view of the internal cross-sectional structure of the base of the present invention;
FIG. 5 is an enlarged schematic view of the structure of the present invention at B;
FIG. 6 is a schematic side view of the internal structure of the housing of the present invention;
FIG. 7 is a schematic view of a retaining clip according to the present invention;
fig. 8 is a schematic top view of the internal structure of the base of the present invention.
In the figure: 1. auxiliary structure, 101, limit lever, 102, movable lever, 103, fixed lever, 104, outer shell, 105, rotating wheel, 106, movable block, 107, screw, 108, movable lever, 109, scale mark, 110, spring, 2, top plate, 3, support, 4, bottom plate, 5, base, 6, belt, 7, driven wheel, 8, power wheel, 9, slider, 10, holding tank, 11, handle, 12, rotating disk, 13, slide rail, 14, fixed clamp, 15, movable rail, 16, roller, 17, fixed plate, 18, heightening disk, 19, pushing machine, 20, pair threaded rod, 21, movable block, 22, rubber pad, 23, and partition plate.
Detailed Description
So that the objects, technical solutions and advantages of the embodiments of the present disclosure are more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the terms "comprising" or "includes" and the like in this disclosure is intended to cover an element or article listed after that term and equivalents thereof without precluding other elements or articles. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
As shown in fig. 1 to 8, the auxiliary device for installing the pushing support for the steel beam pushing construction provided by the invention comprises a bottom plate, the top of the bottom plate 4 is provided with a base 5, the top of the base 5 is provided with a pushing machine 19, the bottom of the base 5 is provided with a plurality of rollers 16, both sides of the base 5 are fixedly connected with sliding blocks 9, the top and the bottom of the sliding blocks 9 are provided with auxiliary structures 1, the auxiliary structures 1 comprise a limiting rod 101, a movable rod 102, a fixed rod 103, a shell 104, a rotating wheel 105, a moving block 106, a screw 107, a moving rod 108, a scale 109 and a spring 110, when the limiting rod 101 receives an outward pulling force, the base 5 can be controlled to horizontally move back to an initial position by rotating the screw 107, the auxiliary structures 1 check whether the positions are installed correctly or not by the four limiting rods 101, if a certain offset is installed, the two limiting rods 101 can drive the moving rod 108 to be outwards moved, scale marks 109 are further arranged on the moving rod 108, a user can very quickly move to the position of the steel beam bridge 5 through a very fast motor, and the position of the steel beam bridge 19 can be adjusted to the position of the steel bridge 19 when the steel bridge is not influenced by the position of the pushing machine, and the position of the pushing machine is adjusted to the position of the steel bridge 19 when the steel bridge is very fast and the position is directly influenced by the position of the steel bridge 19, and the position of the pushing machine is adjusted to the position of the steel bridge 19 when the steel bridge is very far away from the position by the position of the steel bridge 19 and the position is directly opposite to the position when the position is directly opposite to the position of the pushing machine 19.
The top fixedly connected with shell 104 of slider 9, the front and the back of shell 104 inner wall all fixedly connected with spring 110, the front fixedly connected with movable rod 108 of spring 110, the front of movable rod 108 runs through shell 104 and extends to the outside of shell 104, and one side of movable rod 108 is provided with scale mark 109, and the front of movable rod 108 is fixedly connected with dead lever 103.
The front of dead lever 103 rotates and is connected with movable rod 102, the top fixedly connected with gag lever post 101 of movable rod 102, the back rotation of gag lever post 101 is connected with runner 105, the bottom fixedly connected with movable block 106 of slider 9, the bottom of movable block 106 runs through bottom plate 4 and extends to the inside of bottom plate 4, threaded hole is seted up in the front of movable block 106, runner 105 can cooperate movable rod 102 to carry out a small scale deformation to the girder steel bottom of various irregular shapes, just so can adapt to the bottom of various different girder steel, the rotation junction of movable rod 102 and dead lever 103 is provided with torque spring, can let girder steel installation dismantle the back gag lever post 101 and movable rod 102 can become initial shape after coming, wait for next use.
Screw rods 107 are rotatably connected to two sides of the front surface of the inner wall of the bottom plate 4, the screw rods 107 are matched with threaded holes, the front surfaces of the two screw rods 107 penetrate through the bottom plate 4 and extend to the outside of the bottom plate 4, and driven wheels 7 are fixedly connected to the front surfaces of the two screw rods 107.
One side fixedly connected with casing of bottom plate 4, the bottom of shells inner wall is provided with the motor, and the output shaft of motor runs through the casing and extends to the outside of casing, and the positive fixedly connected with power wheel 8 of motor, the surface of power wheel 8 is connected with the surface phase transmission of driving wheel 7 through belt 6.
Both sides at bottom plate 4 top are all fixedly connected with support 3, and the equal fixedly connected with roof 2 at the top of two supports 3, the equal fixedly connected with slide rail 13 in the bottom of two opposite sides of support 3, slide rail 13 and slider 9 looks adaptation.
The bottom fixedly connected with baffle 23 of base 5 inner wall, the symmetry distributes between the front of base 5 inner wall and the back has movable rail 15, and one side sliding connection of one of them movable rail 15 has fixed plate 17, and the opposite side of fixed plate 17 runs through another movable rail 15 and extends to the outside of movable rail 15, and the opposite side fixedly connected with movable block 21 of fixed plate 17.
The back fixedly connected with fixation clamp 14 of fixed plate 17, the semicircle groove has been seted up at the back of fixation clamp 14, the back fixedly connected with rubber pad 22 of semicircle groove, rubber pad 22 can increase the frictional force with pushing away 19 stabilizer blade surface, let the more firm also can protect pushing away 19 stabilizer blade's surface can not produce the scratch by fixation clamp 14 when being pressed from both sides tightly by the clamping of fixation clamp 14 centre gripping, standing groove 10 has been seted up at the top of base 5, standing groove 10 is located directly over the fixation clamp 14, standing groove 10 and pushing away 19 looks adaptation, the fixation clamp 14 can be controlled to loosen and press from both sides tight through rotatory threaded rod 20, cooperate together with standing groove 10 can fix four stabilizer blades of pushing away 19, so when base 5 carries out position adjustment, push away 9 can not take place the displacement, cause secondary deviation, the fixation clamp 14 can be through manual hand control elasticity, rotatory regulation is quick convenient.
The positive both sides of base 5 inner wall all rotate and are connected with to threaded rod 20, and two are to threaded rod 20 and movable block 21 looks adaptation, and the front of two to threaded rod 20 all runs through base 5 and extends to the outside of base 5.
The front faces of the two pairs of threaded rods 20 are fixedly connected with rotating discs 12, and the front faces of the two rotating discs 12 are rotatably connected with handles 11.
The working principle and the using flow of the invention are as follows: when a user installs the pushing machine 19, firstly, four supporting legs of the pushing machine 19 are placed into the placing groove 10, the supporting legs enter the base 5 after passing through the placing groove 10 and are stabilized on the heightening disc 18, after the pushing machine 19 is placed, the user holds the handle 11 with two hands to rotate simultaneously, the handle 11 is stressed and drives the rotating disc 12 to rotate, the rotating disc 12 drives the threaded rod 20 to rotate, the threaded rod 20 drives the movable block 21 to move, the movable block 21 drives the fixing plate 17 to move, the fixing plate 17 drives the fixing clamp 14 to move, the fixing clamp 14 only moves to firmly clamp the four supporting legs of the pushing machine 19, after the pushing machine 19 is fixed, the motor can be started to control the base 5 to move back and forth along the sliding rail 13 and to a position under the measured steel beam, after the pushing machine is moved, the steel beam can be pushed after one time of inspection, when the steel beam moves to the top of the pushing machine 19, the bottom of the steel beam can prop the limiting rod 101 outwards, if the mounting position of the pushing machine 19 is deviated, the part of the steel beam deviated can push the limiting rod 101 at one side outwards by a part of distance more than the limiting rod 101 at the other side, the pushed part of distance can be observed by a user through a scale mark 109 on a moving rod 108, after the user observes the cheap distance, the user needs to open a motor to adjust the position of the base 5, then the pushing machine 19 is driven to move by the base 5 to a small amplitude position, the motor is started to drive the power wheel 8 to rotate, the power wheel 8 drives the two driven wheels 7 to rotate by a belt 6, the driven wheels 7 drive the screw 107 to rotate, the screw 107 drives the moving block 106 to horizontally move back and forth, the moving block 106 drives the base 5 to horizontally move back and forth along the sliding rail 13, the pushing machine 19 is moved to a proper position, so that the limit rods 101 at the two sides are deformed uniformly, and the adjustment is quick and convenient.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.
Claims (5)
1. The utility model provides a girder steel pushes away construction and pushes away auxiliary device for support installation, includes bottom plate (4), its characterized in that: the automatic lifting device is characterized in that a base (5) is arranged at the top of the bottom plate (4), a pushing machine (19) is arranged at the top of the base (5), a plurality of rollers (16) are arranged at the bottom of the base (5) in an array mode, sliding blocks (9) are fixedly connected to two sides of the base (5), auxiliary structures (1) are arranged at the top and the bottom of the sliding blocks (9), each auxiliary structure (1) comprises a limiting rod (101), a movable rod (102), a fixed rod (103), a shell (104), a rotating wheel (105), a moving block (106), a screw (107), a moving rod (108), a scale mark (109) and a spring (110), when the limiting rod (101) receives an outward pulling force, the limiting rod (101) can horizontally move outwards from the shell (104), and the distance that the limiting rod (101) receives pulling force can be controlled to horizontally move back and forth through a rotating screw (107) to control the base (5) to return to an initial position;
The top of the sliding block (9) is fixedly connected with a shell (104), the front and the back of the inner wall of the shell (104) are fixedly connected with springs (110), the front of each spring (110) is fixedly connected with a movable rod (108), the front of each movable rod (108) penetrates through the shell (104) and extends to the outside of the shell (104), one side of each movable rod (108) is provided with a scale mark (109), and the front of each movable rod (108) is fixedly connected with a fixed rod (103);
The front of the fixed rod (103) is rotationally connected with a movable rod (102), the top of the movable rod (102) is fixedly connected with a limiting rod (101), the back of the limiting rod (101) is rotationally connected with a rotating wheel (105), the bottom of the sliding block (9) is fixedly connected with a moving block (106), the bottom of the moving block (106) penetrates through the bottom plate (4) and extends to the inside of the bottom plate (4), and the front of the moving block (106) is provided with a threaded hole;
Screw rods (107) are rotatably connected to two sides of the front surface of the inner wall of the bottom plate (4), the screw rods (107) are matched with the threaded holes, the front surfaces of the two screw rods (107) penetrate through the bottom plate (4) and extend to the outside of the bottom plate (4), and driven wheels (7) are fixedly connected to the front surfaces of the two screw rods (107);
One side of the bottom plate (4) is fixedly connected with a shell, the bottom of the inner wall of the shell is provided with a motor, an output shaft of the motor penetrates through the shell and extends to the outside of the shell, the front of the motor is fixedly connected with a power wheel (8), and the surface of the power wheel (8) is in transmission connection with the surface of a driven wheel (7) through a belt (6);
Both sides at bottom plate (4) top are all fixedly connected with support (3), two the top of support (3) is all fixedly connected with roof (2), two the bottom of support (3) opposite side is all fixedly connected with slide rail (13), slide rail (13) and slider (9) looks adaptation.
2. The auxiliary device for installing the pushing support for pushing construction of the steel beam, as set forth in claim 1, is characterized in that: the base is characterized in that a partition plate (23) is fixedly connected to the bottom of the inner wall of the base (5), movable rails (15) are symmetrically distributed between the front surface and the back surface of the inner wall of the base (5), one side of each movable rail (15) is slidably connected with a fixed plate (17), the other side of each fixed plate (17) penetrates through the other movable rail (15) and extends to the outside of each movable rail (15), and movable blocks (21) are fixedly connected to the other side of each fixed plate (17).
3. The auxiliary device for installing the pushing support for pushing construction of the steel beam, according to claim 2, is characterized in that: the utility model discloses a fixed plate, including fixed plate (17), fixed plate (14), semicircular groove has been seted up at the back of fixed plate (17), semicircular groove's back fixedly connected with rubber pad (22), standing groove (10) have been seted up at the top of base (5), standing groove (10) are located directly over fixed plate (14), standing groove (10) and pushing away quick-witted (19) looks adaptation.
4. The auxiliary device for installing the pushing support for pushing construction of the steel beam, according to claim 2, is characterized in that: the two sides of the front side of the inner wall of the base (5) are respectively connected with a pair of threaded rods (20) in a rotating mode, the two pair of threaded rods (20) are matched with the movable block (21), and the front sides of the two pair of threaded rods (20) penetrate through the base (5) and extend to the outside of the base (5).
5. The auxiliary device for installing the pushing support for pushing construction of the steel beam, as claimed in claim 4, is characterized in that: the front faces of the two pairs of threaded rods (20) are fixedly connected with rotating discs (12), and the front faces of the two rotating discs (12) are rotatably connected with handles (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111561425.6A CN114108489B (en) | 2021-12-20 | 2021-12-20 | Auxiliary device for installing pushing support in steel beam pushing construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111561425.6A CN114108489B (en) | 2021-12-20 | 2021-12-20 | Auxiliary device for installing pushing support in steel beam pushing construction |
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| CN114108489A CN114108489A (en) | 2022-03-01 |
| CN114108489B true CN114108489B (en) | 2024-06-04 |
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| CN202111561425.6A Active CN114108489B (en) | 2021-12-20 | 2021-12-20 | Auxiliary device for installing pushing support in steel beam pushing construction |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114737488A (en) * | 2022-03-29 | 2022-07-12 | 中铁六局集团有限公司 | Frame bridge displacement adjusting equipment and using method thereof |
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2021
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|---|---|---|---|---|
| KR960029569A (en) * | 1995-01-27 | 1996-08-17 | 최훈 | Formwork Scaffolding |
| KR20130021017A (en) * | 2011-08-22 | 2013-03-05 | 차광찬 | A shore system of the variable support angle |
| CN208668286U (en) * | 2018-07-14 | 2019-03-29 | 四川瀚科建设有限公司 | A kind of municipal administration bridge construction support frame |
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| CN114108489A (en) | 2022-03-01 |
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