CN112299234A - Rail-mounted pier transformation device and construction method thereof - Google Patents
Rail-mounted pier transformation device and construction method thereof Download PDFInfo
- Publication number
- CN112299234A CN112299234A CN202011191335.8A CN202011191335A CN112299234A CN 112299234 A CN112299234 A CN 112299234A CN 202011191335 A CN202011191335 A CN 202011191335A CN 112299234 A CN112299234 A CN 112299234A
- Authority
- CN
- China
- Prior art keywords
- construction
- half frame
- rail
- pier
- hoisting
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 92
- 230000009466 transformation Effects 0.000 title description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 claims description 15
- 238000007634 remodeling Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 239000000725 suspension Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
-
- 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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of road and bridge maintenance and reconstruction engineering, in particular to a rail-mounted pier reconstruction device and a construction method thereof, wherein the construction method comprises the following steps: s1: placing two half frame bodies of a construction hanging frame on the ground at two sides of the steel truss girder, and moving the traveling mechanism to be above the construction hanging frame; s2: hoisting the two half frame bodies to a set height by using the two groups of hoisting devices, and moving the traveling mechanism to a construction hanger mounting position to enable the central lines of the two half frame bodies to be superposed with the central line of the pier; s3: moving two groups of half frame bodies oppositely on the track to hoist, splicing the two groups of half frame bodies, and putting down and sleeving the half frame bodies on the bridge pier after splicing; s4: and (5) releasing the connection between the hoisting device and the half frame body, and repeating the steps S1-S3 to install the next construction hoisting frame. The construction hanger bracket can solve the problems that the construction hanger bracket in the prior art is small in structural rigidity, small in load bearing capacity, limited in operation space and low in mounting and dismounting work efficiency.
Description
Technical Field
The invention relates to the technical field of road and bridge maintenance and reconstruction engineering, in particular to a rail-mounted pier reconstruction device and a construction method thereof.
Background
With the increase of service life, large bridges are in the maintenance period. The construction hanging bracket of the bridge is usually applied to bridge maintenance and inspection, mainly serves as a construction personnel working platform, is usually arranged beside a pier or at the bottom of a beam, and is suitable for various bridge constructions and maintenance and inspection. The structural form is different according to the needs, and the component parts mainly comprise a construction platform, a fence, a suspender, an anchoring device and the like.
Aiming at the pier cap reconstruction construction of a single-track railway steel truss bridge, the conventional common construction hanging bracket is usually only used for a working platform of personnel, has small structural rigidity and small load bearing capacity, has limited pier top operation space, and has low installation and removal work efficiency and long construction period and also has greater safety risk.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a rail-mounted pier transformation device and a construction method thereof, which can solve the problems of low structural rigidity, low load bearing capacity, limited operation space and low installation and dismantling work efficiency of a construction hanger in the prior art.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the invention provides a system for reconstructing a rail-mounted pier, comprising:
each construction hanging bracket comprises two groups of half frame bodies which can be spliced and disassembled, and the splicing side of each half frame body is provided with a groove;
the walking mechanism comprises a transverse hanging beam which is arranged on the steel truss girder in a walking way, the transverse hanging beam comprises a hoisting end, two ends of the hoisting end extend out of the steel truss girder, and a track is arranged below the hoisting end;
the hoisting device is slidably arranged on the track below the hoisting end and used for hoisting the split half frame bodies, and the hoisting devices on two sides of the steel truss girder can move oppositely on the track, so that the two half frame bodies are spliced and then sleeved on the bridge pier.
On the basis of the technical scheme, the walking mechanism further comprises a track flat car which is used for being arranged on a slideway on the steel truss girder, and the transverse hanging beam is arranged on the track flat car.
On the basis of the technical scheme, rail clamping devices are further arranged on two sides of the track flat car and used for fixing the track flat car on the slideway on the steel truss girder.
On the basis of the technical scheme, the hoisting device comprises at least one electric chain hoist, and a chain of the electric chain hoist is used for being connected with one of the half frame bodies to lift the half frame bodies.
On the basis of the technical scheme, each group of the half frame bodies comprises:
the two upper cross beams are arranged at intervals and respectively comprise an upper connecting end;
the upper longitudinal beams are arranged at intervals and connected with the two upper cross beams, and the upper connecting ends extend out of all the upper longitudinal beams;
the two lower cross beams are arranged at intervals, correspondingly arranged below the upper cross beam and respectively comprise lower connecting ends;
the lower longitudinal beams are arranged at intervals and connected with the two lower cross beams, and the lower connecting ends extend out of all the lower longitudinal beams;
at least one vertical post connecting the corresponding upper cross beam and the lower cross beam;
the groove is arranged on one side of the upper connecting end and one side of the lower connecting end and is fixed on the upper cross beam, the upper longitudinal beam, the lower cross beam, the lower longitudinal beam and the stand column through fixing rods.
On the basis of the technical scheme, the upper connecting end and the lower connecting end are provided with flanges, and the two groups of half frame bodies are connected through the flanges.
On the basis of the technical scheme, the upright columns which are connected with the upper cross beam and the lower cross beam on each side are connected through oblique stiffening rods.
On the basis of the technical scheme, the groove is semicircular.
On the basis of the technical scheme, the inner side of the groove is provided with a rubber gasket.
On the other hand, the invention also provides a construction method of the rail-mounted pier reconstruction system, which comprises the following steps:
s1: placing two half frame bodies of a construction hanging frame on the ground at two sides of the steel truss girder, and moving the traveling mechanism to be above the construction hanging frame;
s2: hoisting the two half frame bodies to a set height by using the two groups of hoisting devices, and moving the traveling mechanism to a construction hanger mounting position to enable the central lines of the two half frame bodies to be superposed with the central line of the pier;
s3: moving two groups of half frame bodies oppositely on the track to hoist, splicing the two groups of half frame bodies, and putting down and sleeving the half frame bodies on the bridge pier after splicing;
s4: and (5) releasing the connection between the hoisting device and the half frame body, and repeating the steps S1-S3 to install the next construction hoisting frame.
Compared with the prior art, the invention has the advantages that: by using the rail-mounted pier transformation device and the construction method thereof, the main body structure of the half frame body is prefabricated in a factory and assembled on the ground on site, so that the device is safe and efficient, and the hanger has good integrity, large rigidity, small deformation and high bearing capacity after being folded. The construction hanger adopts an integral suspension assembly technology, the mechanization degree of the whole installation, dismantling and transporting process is high, the construction efficiency is greatly improved, the construction period is also greatly shortened, the construction cost is reduced, and the construction hanger is particularly suitable for the characteristic that the bridge maintenance and reconstruction period is short. In addition, after the construction of the hanging bracket is completed, the construction method can rapidly move to drop the price to the next pier column to be constructed after the hanging bracket is dismantled, and the pier body template can be transported repeatedly by rapidly installing, dismantling and moving the construction hanging bracket, can bear larger load, and can be used as a construction platform for pier body template installation and concrete pouring.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic front view of a device for modifying a rail-mounted pier according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a rail-mounted pier reconstruction device according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a construction hanger in an embodiment of the present invention;
FIG. 4 is a schematic front view of a construction hanger in an embodiment of the present invention;
FIG. 5 is a schematic side view of a construction hanger ground hoist preparation in an embodiment of the present invention;
FIG. 6 is a schematic side view of a construction hanger ground hoist preparation in an embodiment of the present invention;
FIG. 7 is a schematic side view of a construction hanger hoisting according to an embodiment of the present invention;
FIG. 8 is a schematic view illustrating the construction hanger moving to a pier according to an embodiment of the present invention;
FIG. 9 is a schematic view of a construction hanger in an embodiment of the present invention in a closed state;
FIG. 10 is a side view of the construction hanger separated from the lifting device in the embodiment of the present invention;
FIG. 11 is a front view of the construction hanger separated from the lifting device in the embodiment of the present invention;
FIG. 12 is a schematic view of a second set of construction hangers according to an embodiment of the present invention;
FIG. 13 is a schematic illustration of a second set of construction hangers in place according to an embodiment of the invention.
In the figure: 1. a running mechanism; 11. transversely hanging the beam; 12. a track; 13. a rail flat car; 2. a steel truss beam; 3. constructing a hanging bracket; 31. a half frame body; 311. a groove; 312. an upper cross beam; 313. an upper longitudinal beam; 314. a lower cross beam; 315. a lower longitudinal beam; 316. a column; 317. a stiffener; 4. a bridge pier; 5. a hoisting device; 51. an electric chain hoist; 52. a cyclic chain.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the present invention provides a rail-mounted pier remodeling system comprising: at least one group of construction hangers 3, each group of construction hangers 3 comprises two groups of half frame bodies 31 which can be spliced and disassembled, and the splicing side of each group of half frame bodies 31 is provided with a groove 311; the steel truss girder walking mechanism further comprises a walking mechanism 1, wherein the walking mechanism comprises a transverse hanging beam 11 which is arranged on the steel truss girder 2 in a walking manner, the transverse hanging beam 11 comprises a hoisting end, two ends of the hoisting end extend out of the steel truss girder 2, and a track 12 is arranged below the hoisting end; the steel truss girder erection device is characterized by further comprising a hoisting device 5 which is slidably arranged on the rail 12 below the hoisting end, wherein the hoisting device 5 is used for hoisting the split half frame bodies 31, and the hoisting devices 5 positioned on the two sides of the steel truss girder 2 can move oppositely on the rail 12, so that the two half frame bodies 31 are spliced and then sleeved on the bridge piers 4.
When the rail-mounted pier reconstruction system is used, two groups of half frame bodies 31 of a construction hanging bracket 3 are placed on the ground on two sides of the steel truss girder 2, and the traveling mechanism 1 is moved to be above one group of construction hanging brackets 3; hoisting the two groups of half frame bodies 31 to a set height by using the two groups of hoisting devices 5, and moving the traveling mechanism 1 to the installation position of the construction hanger 3 to ensure that the central lines of the two groups of half frame bodies 31 are superposed with the central line of the pier; moving the two groups of hoisting devices 5 on the track 12 in a relative direction, splicing the two groups of half frame bodies 31, and putting down and sleeving the spliced half frame bodies on the piers 4; and (5) releasing the connection between the hoisting device 5 and the half frame body 31, and repeating the steps to install the next construction hanger 3. In addition, after the construction of the hanging bracket is completed, the price of the pier column to be constructed next can be quickly removed and constructed after the hanging bracket is detached, the pier body template can be repeatedly transported through quick installation and removal of the construction hanging bracket, and the construction hanging bracket can bear large load and can be used as a construction platform for pier body template installation and concrete pouring. The main structure of the half frame body is prefabricated in a factory, assembled on the ground on site, safe and efficient, and the hanger frame is good in integrity, large in rigidity, small in deformation and high in bearing capacity after being folded. The construction hanger adopts an integral suspension assembly technology, the mechanization degree of the whole installation, dismantling and transporting process is high, the construction efficiency is greatly improved, the construction period is also greatly shortened, the construction cost is reduced, and the construction hanger is particularly suitable for the characteristic that the bridge maintenance and reconstruction period is short.
The rail-mounted pier transformation system can be used for not only the transformation of pier caps of piers, but also material transportation equipment, beam bottom inspection equipment and the like. Meanwhile, the hanging bracket with other sizes can be customized according to different requirements and the same principle, so that the hanging bracket is wide in application and flexible and changeable.
In some alternative embodiments, the running gear 1 further comprises a rail trolley 13 for being arranged on the runners of the steel girder 2, and the transverse suspension beam 11 is arranged on the rail trolley 13.
In this embodiment, the transverse suspension beam 11 is provided on the rail platform 13 so that the transverse suspension beam 11 can move on the slideway of the steel girder 2. In addition, in this embodiment, the transverse hanging beam 11 includes two cross beams parallel to each other, and two ends of the cross beams extend out of the hoisting ends of the steel truss beam 2, and a rail 12 is provided below each hoisting end.
In some optional embodiments, rail clamps are further provided on both sides of the rail flatbed 13 for fixing the rail flatbed 13 to the runners on the steel girder 2.
In this embodiment, rail clamping devices are disposed on two sides of the rail flatbed 13, so that the rail flatbed 13 can be fixed on the slide rails when the lifting device 5 lifts two sets of split half frame bodies 31 to move to the installation position.
In some optional embodiments, the lifting device 5 comprises at least one electric chain hoist 51, and the chain 52 of the electric chain hoist 51 is used for connecting with one half of the frame body 31 to lift the half of the frame body 31.
In this embodiment, the transverse hanging beam 11 comprises two parallel beams, two ends of each beam extend out of the lifting end of the steel truss beam 2, and a rail 12 is arranged below each lifting end, so that each side of the steel truss beam 2 is provided with two groups of lifting devices 5.
In this example, each set of hoisting device 5 includes two electric chain hoists 51, so that the half frame bodies 31 on each side are connected by the chain 52 using four electric chain hoists 51 for synchronously hoisting the half frame bodies 31. This makes the process of lifting the half frame body 31 up more stable as a whole.
In some optional embodiments, each half frame 31 includes two spaced upper cross beams 312, each including an upper connecting end; at least two upper longitudinal beams 313 arranged at intervals, wherein the upper longitudinal beams 313 are connected with the two upper cross beams 312, and the upper connecting ends extend out of all the upper longitudinal beams 313; the device also comprises two lower cross beams 314 which are arranged at intervals, are correspondingly arranged below the upper cross beam 312 and respectively comprise lower connecting ends; the device also comprises at least two lower longitudinal beams 315 which are arranged at intervals and are connected with the two lower cross beams 314, and the lower connecting ends extend out of all the lower longitudinal beams 315; at least 4 columns 316 connecting the corresponding upper 312 and lower 314 beams; the grooves 311 are provided at one side of the upper and lower connection ends, and are fixed to the upper cross member 312, the upper longitudinal member 313, the lower cross member 314, the lower longitudinal member 315, and the vertical posts 316 by fixing bars.
In the present embodiment, the groove 311 is fixed to the upper cross member 312, the upper longitudinal member 313, the lower cross member 314, the lower longitudinal member 315, and the pillar 316 by a connecting bracket. And the shape of the recess 311 matches the shape of the pier stud. The upper connecting end of the upper cross beam 312 penetrates through the lower chord of the steel truss girder 2, the folded construction hanger 3 is integrally lowered, and the dip block is arranged at the corresponding position of the upper cross beam 312 and the lower chord of the steel truss girder 2, so that the hanger is stably suspended at the lower chord of the steel truss girder 2.
In some alternative embodiments, the upper connecting end and the lower connecting end are provided with flanges, and the two half frame bodies 31 are connected through the flanges.
In this embodiment, the upper connection end and the lower connection end of the two sets of half frame bodies 31 are provided with flanges, and the two sets of half frame bodies 31 are connected through the flanges, so that the construction efficiency can be improved.
In some alternative embodiments, the columns 316 connecting the top and bottom cross members 312, 314 on each side are connected by diagonal stiffeners 317.
In this embodiment, a stiffener 317 is disposed between the upper cross member 312 and the vertical post 316 of the lower cross member 314 to improve the strength of the half frame body 31.
In some alternative embodiments, the recess 311 is semi-circular. In this embodiment, the groove 311 matches the shape of the bridge pier, but in other embodiments, the bridge pier has another shape, and the groove may also have another shape matching the bridge pier.
In some alternative embodiments, the inside of the recess 311 is provided with a rubber gasket. In this embodiment, the rubber gasket disposed in the groove 311 may increase the friction between the groove 311 and the bridge pier. The construction hanging bracket is more stable.
As shown in fig. 5 to 13, the present invention also provides a construction method of the rail-mounted pier remodeling system, comprising the steps of:
s1: two sets of half frame bodies 31 of a construction hanger 3 are placed on the ground on both sides of the steel truss girder 2, and the running mechanism 1 is moved to above one set of construction hanger 3.
In this embodiment, the half frame bodies 31 are prefabricated in a factory, and after the bar separating members are transported to the site, the bar separating members are assembled on the site and symmetrically placed on the ground along the center line of the bridge.
S2: two groups of half frame bodies 31 are lifted to a set height by using two groups of lifting devices 5, and then the walking mechanism 1 is moved to the installation position of the construction hanger 3, so that the central lines of the two groups of half frame bodies 31 are superposed with the central line of the pier.
In this embodiment, the running mechanism 1 runs above the construction hanger 3 along the slideway, synchronously lowers the lifting hook, lifts the construction hanger 3 to a certain height away from the ground, checks whether the positions of the construction hangers 3 on two sides are symmetrical, checks whether the bottom plate is horizontal, and timely adjusts if there is a deviation. After no error is ensured, the synchronous lifting is carried out to the specified height. And the walking mechanism 1 moves to the installation position of the construction hanger 3, namely the central lines of the two groups of half frame bodies 31 are superposed with the central line of the pier, and the rail clamping devices arranged at the two ends of the rail car are opened to fix the rail flat car 13.
S3: two sets of hoisting devices 5 are moved oppositely on the track 12, the two sets of half frame bodies 31 are spliced, and are placed and sleeved on the pier 4 after splicing.
In this embodiment, the upper connecting end of the upper beam 312 passes through the inside of the lower chord of the steel truss 2 for butt joint, and the flange is pre-tightened by using bolts. Constructors go down to the pier tops, pre-tighten the abutting flanges of the lower cross beam 314, and finally re-screw the bolts of the abutting flanges of the upper cross beam and the lower cross beam, so that the half frame bodies 31 on the two sides form an integral structure.
S4: and (5) releasing the connection between the hoisting device 5 and the half frame body 31, and repeating the steps S1-S3 to install the next construction hanger 3.
In addition, the construction hanger 3 can be transported after being used, the hanger is transported only by moving the traveling mechanism 1 to the position above the transportation hanger, the lifting hooks are arranged, butt-joint bolts of the upper and lower beams of the hanger are removed, and the hanger can be separated after being lifted for a certain height and then transported to other pier tops for installation.
To sum up, the main structure of half support body is prefabricated by the mill, and on-the-spot ground is assembled, and is safe high-efficient, and the wholeness is good after the gallows folds, and rigidity is big, warp for a short time, and bearing capacity is high. The construction hanger adopts an integral suspension assembly technology, the mechanization degree of the whole installation, dismantling and transporting process is high, the construction efficiency is greatly improved, the construction period is also greatly shortened, the construction cost is reduced, and the construction hanger is particularly suitable for the characteristic that the bridge maintenance and reconstruction period is short. In addition, after the construction of the hanging bracket is completed, the construction method can rapidly move to drop the price to the next pier column to be constructed after the hanging bracket is dismantled, and the pier body template can be transported repeatedly by rapidly installing, dismantling and moving the construction hanging bracket, can bear larger load, and can be used as a construction platform for pier body template installation and concrete pouring.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A rail-mounted pier remodeling system comprising:
the construction hanging bracket comprises at least one group of construction hanging brackets (3), each group of construction hanging brackets (3) comprises two groups of half frame bodies (31) which can be spliced and disassembled, and the splicing side of each group of half frame bodies (31) is provided with a groove (311);
the walking mechanism (1) comprises a transverse hanging beam (11) which can be arranged on the steel truss girder (2) in a walking mode, the transverse hanging beam (11) comprises a hanging end, two ends of the hanging end extend out of the steel truss girder (2), and a track (12) is arranged below the hanging end;
locate slidable hoisting accessory (5) on hoisting accessory below track (12), hoisting accessory (5) are used for hoisting the split half support body (31), and are located hoisting accessory (5) of steel longeron (2) both sides can be in track (12) relative movement to make two sets of overlap after half support body (31) splice and establish on pier (4).
2. The system for reconstructing a rail-mounted pier as claimed in claim 1, wherein: the walking mechanism (1) further comprises a track flat car (13) which is used for being arranged on a slideway on the steel truss girder (2), and the transverse hanging beam (11) is arranged on the track flat car (13).
3. The system for reconstructing a rail-mounted pier as claimed in claim 2, wherein: and rail clamping devices are further arranged on two sides of the rail flat car (13) and used for fixing the rail flat car (13) on the slideway on the steel truss girder (2).
4. The system for reconstructing a rail-mounted pier as claimed in claim 1, wherein: the lifting device (5) comprises at least one electric chain hoist (51), and a chain (52) of the electric chain hoist (51) is used for being connected with one half frame body (31) to lift the half frame body (31).
5. The system for reconstructing a rail-mounted pier as claimed in claim 1, wherein: every group half support body (31) all include:
two upper cross beams (312) arranged at intervals and respectively comprising an upper connecting end;
at least two upper longitudinal beams (313) arranged at intervals and connecting the two upper cross beams (312), wherein the upper connecting ends extend out of all the upper longitudinal beams (313);
the two lower cross beams (314) are arranged at intervals, are correspondingly arranged below the upper cross beam (312), and respectively comprise lower connecting ends;
at least two lower longitudinal beams (315) arranged at intervals and connecting the two lower cross beams (314), wherein the lower connecting ends extend out of all the lower longitudinal beams (315);
at least 4 columns (316) connecting the corresponding upper (312) and lower (314) beams;
the groove (311) is arranged on one side of the upper connecting end and one side of the lower connecting end and is fixed on the upper cross beam (312), the upper longitudinal beam (313), the lower cross beam (314), the lower longitudinal beam (315) and the upright post (316) through fixing rods.
6. The rail-mounted pier remodeling system according to claim 5, wherein: the upper connecting end and the lower connecting end are provided with flanges, and the two half frame bodies (31) are connected through the flanges.
7. The rail-mounted pier remodeling system according to claim 5, wherein: the upright posts (316) connecting the upper cross beam (312) and the lower cross beam (314) on each side are connected through oblique stiffening rods (317).
8. The system for reconstructing a rail-mounted pier as claimed in claim 1, wherein: the groove (311) is semicircular.
9. The system for reconstructing a rail-mounted pier as claimed in claim 1, wherein: the inner side of the groove (311) is provided with a rubber gasket.
10. A construction method of a rail-mounted pier remodeling system according to claim 1, comprising the steps of:
s1: placing two groups of half frame bodies (31) of a construction hanging bracket (3) on the ground at two sides of the steel truss girder (2), and moving the traveling mechanism (1) to be above one group of construction hanging brackets (3);
s2: hoisting two groups of half frame bodies (31) to a set height by using two groups of hoisting devices (5), and moving a walking mechanism (1) to the installation position of a construction hoisting frame (3) to enable the central lines of the two groups of half frame bodies (31) to coincide with the central line of a pier;
s3: moving two groups of hoisting devices (5) on the track (12) in a relative direction, splicing the two groups of half frame bodies (31), and sleeving the spliced half frame bodies on the piers (4) in a downward-placing manner;
s4: and (5) releasing the connection between the hoisting device (5) and the half frame body (31), and repeating the steps S1-S3 to install the next construction hanger (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191335.8A CN112299234A (en) | 2020-10-30 | 2020-10-30 | Rail-mounted pier transformation device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191335.8A CN112299234A (en) | 2020-10-30 | 2020-10-30 | Rail-mounted pier transformation device and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112299234A true CN112299234A (en) | 2021-02-02 |
Family
ID=74332952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011191335.8A Pending CN112299234A (en) | 2020-10-30 | 2020-10-30 | Rail-mounted pier transformation device and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112299234A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468743A (en) * | 2019-07-31 | 2019-11-19 | 中铁大桥局集团有限公司 | A kind of traveling cradle and construction method for the transformation of old pier coping |
| CN110904841A (en) * | 2019-11-07 | 2020-03-24 | 中铁大桥局集团有限公司 | Bridge girder lifting method and system |
-
2020
- 2020-10-30 CN CN202011191335.8A patent/CN112299234A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468743A (en) * | 2019-07-31 | 2019-11-19 | 中铁大桥局集团有限公司 | A kind of traveling cradle and construction method for the transformation of old pier coping |
| CN110904841A (en) * | 2019-11-07 | 2020-03-24 | 中铁大桥局集团有限公司 | Bridge girder lifting method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110747761B (en) | Dismantling construction method for temporary supporting system of small box girder type hidden cover beam prefabricated on road and bridge | |
| CN212052327U (en) | Movable type dismounting and hoisting tool for temporary supporting system of small box girder type hidden cover beam of road and bridge prefabrication | |
| CN103898832A (en) | Bridge cable hanging anchoring end detection working platform | |
| CN210288140U (en) | Simple and easy prefabricated decking hoist and mount platform truck | |
| CN114808747A (en) | Multifunctional bridge girder erection machine and bridge girder erection construction method | |
| CN211420881U (en) | Movable formwork for concrete construction of overhanging wing plate of steel-concrete composite beam | |
| CN105464007B (en) | A kind of folding plane girder in longitudinal direction and its application process | |
| CN112726442A (en) | Construction method of large-span thin-wall concrete sound barrier pouring trolley | |
| CN112299234A (en) | Rail-mounted pier transformation device and construction method thereof | |
| CN110700112A (en) | Movable formwork for concrete construction of overhanging wing plate of steel-concrete composite beam and construction method | |
| CN112252194A (en) | Bridge lifting device, transformation system and transformation construction method | |
| CN114934449A (en) | Assembled bridge segment assembling continuous beam bridge erecting machine | |
| CN210597056U (en) | Movable cantilever track gantry device in steel web installation | |
| CN107700363B (en) | Bridge tower rack with lifting system and construction method | |
| CN219384698U (en) | Novel movable operation platform for bridge reinforcement and maintenance | |
| CN219637717U (en) | Cable-stayed bridge cable guide pipe installation device | |
| CN110886225A (en) | Construction method of cable tower stay cable installation system | |
| CN217325032U (en) | Hollow slab beam erection system | |
| CN218345960U (en) | Construction structure of cross-river bridge | |
| CN213740646U (en) | Bridge deck temporary support for mounting steel box girder | |
| CN216474535U (en) | Movable construction platform for bridge inter-span construction | |
| CN217499962U (en) | Multifunctional bridge girder erection machine | |
| CN218909519U (en) | Vertical unloading system between subway station layers | |
| CN215331380U (en) | Rail type suspension platform | |
| CN220486244U (en) | Component transfer carrier for bridge construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210202 |