CN113756210A - Device and method for self-transporting and mounting top box girder across adjacent bent cap - Google Patents
Device and method for self-transporting and mounting top box girder across adjacent bent cap Download PDFInfo
- Publication number
- CN113756210A CN113756210A CN202111213037.9A CN202111213037A CN113756210A CN 113756210 A CN113756210 A CN 113756210A CN 202111213037 A CN202111213037 A CN 202111213037A CN 113756210 A CN113756210 A CN 113756210A
- Authority
- CN
- China
- Prior art keywords
- moving frame
- cover
- span
- girder
- adjacent
- 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.)
- Granted
Links
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to a device and a method for self-transporting and mounting a top box girder across adjacent bent caps. The method is that a span beam moving frame or a half span beam moving frame is respectively and longitudinally arranged on two second cover beams which are longitudinally adjacent and pads on the adjacent sides of the two first cover beams in an aligned mode, a moving roller below one end side of the span beam moving frame or the half span beam moving frame is positioned on the pads on the top surfaces of the adjacent sides of the first cover beams, and a moving roller below the other end side of the span beam moving frame or the half span beam moving frame is positioned on the pads on the top surfaces of the transversely adjacent sides of the second cover beams, namely when a box beam to be laid on the span beam moving frame or the half span beam moving frame moves from one cover beam side to the transversely adjacent other cover beam side, the span beam moving frame or the half span beam moving frame plays a role of a fixed bridge. The invention can finish the transportation and the laying of the box girder by crossing a plurality of cover girders by manpower and only by using the manpower, the existing manual hoisting device and the mobile device of the invention without reforming the existing equipment, thereby solving the problem that the box girder can not be transported and laid by machinery crossing a plurality of cover girders in a special area.
Description
Technical Field
The invention belongs to a device and a method for self-transporting and mounting a top box girder across adjacent bent caps.
Background
When highway, railway or bridge sections are constructed on the tops of the capping beams in steep mountainous areas, the conventional bridge girder erection machine is used for laying the box girders on the tops of the capping beams, but the bridge girder erection machine can only hoist and lay the box girders on the tops of the capping beams at the lower ends of the bridge girder erection machine, and the laying surface is narrow. Such as: the method is characterized in that 9-standard projects of a terrace tunnel group located in the sky terraces of Qinling mountains are provided, the length of a bluestone ridge tunnel in construction is 3619m, the length of a silver-hole gorge tunnel is 816m, and a Zhugou bridge is 240m, and the typical two tunnels are in a form of clamping one bridge; the widened bridge face width of the bridge is about 50m, the clear width of the tunnel is 14m, the width of the bridge deck is larger than that of the tunnel, a tunnel paving support area is additionally arranged outside the widened bridge, two cover beams which are distributed in parallel at a distance are arranged on one side or two sides of a transverse bridge of the cover beam opposite to the tunnel, the adjacent distance between the cover beams is 50-100 cm, a widened part is formed, the length of a longitudinal bridge of the widened part is 100m and consists of a plurality of cover beams, the landform of a bridge site area is severe, the tunnel portals of the two tunnels are cliff walls, and the abutment is connected with the tunnel. The box girder laid on the top of the cover girder by the bridge girder erection machine mainly has the following two technical problems:
(1) because the designed bridge width is larger than the tunnel road surface width, the top width of the bridge girder erection machine does not have excess length corresponding to the position above the arch waist of the tunnel, so that the transverse moving area of the bridge girder erection machine is limited. After the bridge girder erection machine is assembled in the tunnel, the bridge girder erection machine cannot move transversely to the position of the side beam according to a conventional bridge girder erection scheme, so that the side box girders cannot be installed according to the designed position, namely the bridge girder erection machine cannot transport and lay the box girders on the two cover girders at the sides.
(2) If the box girder laying on the two cover girders on the side edges is finished by adopting a method of prefabricating the box girder on site in a field girder erection field, the environment limits the girder field, mainly embodying that the valley of the bridge site area is V-shaped, the abutment is closer to the cliff side, and no large-scale equipment hoisting platform is arranged. The traditional bridging form needs a large amount of earthwork to fill the construction operation platform of the equipment, so that the construction period is long, the investment is large, and the potential safety risk is high.
The construction conditions described above also exist in a large number of other similar construction environments.
The inventor discloses a simple and rapid method and a device for mounting adjacent capping beam top box beams by using a cross-pier gantry crane in Chinese patent publication No. CN 106677076A, the method is that extension sections are mounted at two side ends or one side end of a gantry transverse moving hanging beam of the cross-pier gantry crane, the length of each extension section covers the upper space of the corresponding side end of the adjacent capping beam, sleepers and rails or raceways are laid on the top surfaces of the adjacent capping beams, and the adjacent box beams are placed on a moving rail car or a moving plate on the top surfaces of the adjacent capping beams by a crane; and the hydraulic jack synchronously transversely moves each adjacent box girder to the corresponding position on the adjacent bent cap, then the manual hydraulic jack is adopted to jack up the two ends of each adjacent box girder, the movable rail car, the rail and the sleeper are withdrawn, and the installation of each adjacent box girder is completed. The method and the device are simple and feasible, the construction speed is high, time and labor are saved, the construction cost is low, the construction quality is good, the safety is good, and the using effect is good.
However, the method and the device disclosed in the above patent cannot be applied to the case beam transportation and laying across a plurality of capping beams only by manpower without the cooperation of a pier-spanning gantry crane, and the method and the device disclosed in the above patent have the precondition that extension sections are installed at two side ends or one side end of a gantry traversing crane beam of the pier-spanning gantry crane, the length of the extension section covers the upper space of a corresponding side end of a transversely adjacent capping beam, namely, the case beam is transported to one side across the adjacent capping beam side by the pier-spanning gantry crane, and then the case beam is moved to the other side of the capping beam by a moving device to complete the installation, so that the problem that the case beam is transported and laid across the plurality of capping beams autonomously by manpower is solved, and the construction period for installing the extension sections at two side ends or one side end of the gantry traversing crane beam of the pier-spanning gantry crane is long, the cost is high, and the destructiveness to the modified body is large. And the construction condition does not have the space environment for installing the extension section on the bridge erecting machine.
Disclosure of Invention
In order to overcome the defects, the invention aims to design a device and a method for self-transporting and mounting top box girders by spanning adjacent cover girders, the problem of manually and autonomously spanning a plurality of cover girders to transport and lay the box girders can be solved by using the method and the device without modifying equipment, and the device and the method have the advantages of simplicity and feasibility, high construction speed, time and labor conservation, low construction cost and good safety.
To this end, the method of the invention comprises the following steps:
(1) preparing a span beam moving frame and a half span beam moving frame;
(2) laying a pad on the top surfaces of adjacent edges of the second and third cover beams and the first cover beam which are adjacent in a transverse interval so that the top surfaces of the adjacent edges of the second and third cover beams and the first cover beam are on the same plane without a barrier;
(3) respectively longitudinally aligning two longitudinally adjacent second cover beams and the pad on the adjacent sides of the two first cover beams to form a span beam moving frame, wherein a moving roller below one end side of the span beam moving frame is positioned on the pad on the top surface of the adjacent side of the first cover beam, and a moving roller below the other end side of the span beam moving frame is positioned on the pad on the top surface of the transverse adjacent side of the second cover beam;
(4) the front hook lug at the front end of each cross beam moving frame is respectively fixed with the far end edge of the second cover beam or the far end edge of the third cover beam through a steel wire rope and a traction manual hoist which are connected in series, and the rear hook lug at the rear end of each cross beam moving frame is respectively fixed with the first cover beam through the steel wire rope and the manual hoist which are connected in series;
(5) the bridge girder erection machine on the box girder at the rear end of the first cover girder respectively positions two ends of a box girder to be laid on top rollers at one end of the span girder moving frame on two longitudinally adjacent first cover girders, and the gravity center of the box girder to be laid is positioned at the rear end of the span girder moving frame on two longitudinally adjacent first cover girders;
(6) synchronously moving the box girder to be laid to the other end of the span beam moving frame on the second cover girder by using a front fixed manual hoisting device respectively, wherein the gravity center of the box girder to be laid is positioned on the front end of the span beam moving frame on the second cover girder;
(7) fixing the box girder to be laid on the span beam moving frame respectively;
(8) loosening the state that rear hook lugs at the rear end of each span beam moving frame are respectively fixed with the first cover beam through the steel wire ropes and the manual hoisting devices which are connected in series, and respectively and synchronously moving the span beam moving frame carrying the box beam to be paved to the end edge, close to the third cover beam, of the second cover beam through the second cover beam by using the manual hoisting devices;
(9) fixing the span beam moving frame, loosening the front fixed manual hoisting device, and synchronously moving each box girder to be laid on the end edge of the span beam moving frame, which is far away from the end edge of the third cover beam, of the span beam moving frame by using the rear fixed manual hoisting device respectively, wherein the gravity center of the box girder to be laid is positioned on the rear end of the span beam moving frame on the second cover beam;
(10) fixing the box girder to be laid on the end edges of the span beam moving frame respectively;
(11) loosening the state that the rear hook lugs at the rear end of each span beam moving frame are respectively fixed with the first cover beam through the steel wire ropes and the manual hoisting devices which are connected in series, and respectively and synchronously moving the front end edge of the span beam moving frame loaded with the box girder to be paved to a cushion at the edge end of the third cover beam close to the second cover beam by using the manual hoisting devices;
(12) repeating the steps (6) to (8), moving the front end edge of the span beam moving frame carrying the box girder to be laid to a corresponding mounting position close to the other edge end of the third cover beam, fixing each span beam moving frame, and synchronously moving the box girder to be laid on the span beam moving frame to the front end edge of the span beam moving frame;
(13) then, jacking up two ends of the box girder to be laid on each span beam moving frame by adopting a manual hydraulic jack, returning each span beam moving frame and dismantling a cushion on the corresponding part of the mounting seat on the third cover girder, and mounting the lower end of the box girder to be laid on the mounting seat on the corresponding mounting seat on the far end edge of the third cover girder to finish the mounting of the box girder to be laid;
(14) sequentially repeating the steps (3) to (13) to sequentially complete the installation of the longitudinal two box girders from the far end edge of the third cover girder, the second cover girder to the second cover girder;
(15) after the bridge girder erection machine is used for completing the installation of each box girder on the two first cover girders, the bridge girder erection machine moves forwards to the first cover girder on which the box girder installation is completed, and the installation of the next first cover girder to the third cover girder in parallel is carried out;
(16) laying a cushion on the top surfaces of the adjacent sides of the first capping beam to the third capping beam on which the box girders are completely installed on one side and the adjacent sides of the longitudinally adjacent second capping beam and the transversely adjacent first capping beam, so that the top surfaces of the adjacent sides of the transversely adjacent first capping beam and the transversely adjacent second capping beam are on the same plane without a barrier;
(17) a half-side span beam moving frame is arranged on the pad on the other side edge of the first cover beam to the third cover beam, the mounting of each box beam is finished, a moving roller under one end edge of the half-side span beam moving frame is positioned on the pad on the top surface of the adjacent side of the first cover beam, and the mounting of each box beam is finished, and a moving roller under the other end edge of the half-side span beam moving frame is positioned on the pad on the top surface of the adjacent side of the second cover beam;
a cross beam moving frame is arranged on the pad on the adjacent side of the next second cover beam and the next first cover beam longitudinally adjacent, a moving roller below one end side of the cross beam moving frame is positioned on the pad on the top surface of the adjacent side of the next first cover beam, and a moving roller below the other end side of the cross beam moving frame is positioned on the pad on the top surface of the adjacent side of the next second cover beam;
(18) and (5) repeating the steps (4) to (17) until the installation of each box girder of the first to third cover girders of the whole section is completed.
As a preferable technical scheme of the invention, the pad is one or a combination of a plurality of I-steel, steel rails, a cushion stone and a skid.
As a preferable technical solution of the present invention, the length of the span beam moving rack or the length of the half span beam moving rack is at least equal to the sum of the width of the bottom surface of the two box girders and the distance between the adjacent cover girders.
As a preferred technical solution of the present invention, when the box girder to be laid on the span beam moving frame or the half span beam moving frame moves from one capping beam side to another capping beam side which is laterally adjacent, the span beam moving frame or the half span beam moving frame plays a role of a fixed bridge.
As a preferred technical solution of the present invention, the fixing of the box girder or the half span beam moving frame to be laid is performed by fixing the front and rear sides of the span beam moving frame or the half span beam moving frame with the corresponding sides of the box girder to be laid by front and rear fixed manual cranes respectively on the span beam moving frame or the half span beam moving frame, and the front and rear fixed manual cranes perform the front and rear movement of the box girder to be laid on the span beam moving frame respectively.
As a preferred technical scheme of the invention, the pad is in a strip shape, and the strip-shaped pads which are adjacent up and down or adjacent right and left are arranged in a staggered manner.
The device for realizing the method for self-transporting and installing the top box girder across the adjacent bent cap comprises a manual lifter and is characterized in that: the device also comprises a span beam moving frame and a half span beam moving frame;
span roof beam carriage release for bear and remove and wait to lay the case roof beam, the side of span roof beam carriage release is door style of calligraphy, the middle part of span roof beam carriage release is equipped with the top layer board, the both sides limit of top layer board is equipped with the side guide board downwards respectively perpendicularly, the up end of top layer board transversely is the spacing distance and is equipped with a plurality of roller groove side by side, the axle is equipped with the knock-out roller in the roller groove, the terminal surface both sides are equipped with the mounting panel under the top layer board that is located the side guide inboard, transversely be a plurality of that the spacing distance set up side by side and remove the roller both ends and fix on the mounting panel that corresponds the side through the bearing pair respectively.
Half span roof beam carriage release for bearing and removing the opposite side edge of accomplishing each bent cap of each case roof beam of installation and waiting to lay the case roof beam, half span roof beam carriage release's side is the Z style of calligraphy, half span roof beam carriage release's middle part is equipped with a layer board, a side of top layer board is equipped with the outside board downwards perpendicularly, the opposite side of top layer board is equipped with the inside board perpendicularly, the upper end middle part of inside board is equipped with the handle pole, the up end of top layer board transversely is the interval distance and is equipped with a plurality of roller groove side by side, the axle is equipped with the knock-out roll in the roller groove, be located, the terminal surface both sides are equipped with the mounting panel under the top layer board between the outside board side by side, transversely be a plurality of that the interval distance set up and remove the roller both ends and fix on the mounting panel that corresponds the side through the bearing pair respectively.
As a preferable technical solution of the present invention, the lower end edge of the side guide plate extends to a lower portion of the side edge of the corresponding side cap rail.
As a preferable technical solution of the present invention, the width of the top pallet on the bridge moving frame is equal to or greater than the width of the cap beam, and the width of the top pallet on the half bridge moving frame is equal to the half width of the cap beam.
As a preferred technical scheme of the invention, the middle parts of the front end and the rear end of the top supporting plate of the span beam moving frame or the half span beam moving frame are respectively provided with a front hook lug and a rear hook lug.
The above method and apparatus achieve the objects of the present invention.
Compared with the prior art, the invention can achieve the following beneficial effects:
1. the invention can finish the transportation and the laying of the box girder by crossing a plurality of cover girders by manpower and only by using the manpower, the existing manual hoisting device and the mobile device of the invention without reforming the existing equipment, thereby solving the problem that the box girder can not be transported and laid by machinery crossing a plurality of cover girders in a special area.
2. The method and the device are simple and feasible, have high construction speed, save time and labor, greatly reduce the construction cost, and have good construction quality, good safety and good use effect.
TABLE 1 comparison of the benefits of the method of the present invention with conventional truck-mounted cranes
The transportation and the laying of box girders across a plurality of cover girders in a conventional plain area can be finished by a plurality of truck cranes, but the dangerous section of the section described in the background of the invention can not be installed by the truck cranes, and the table 1 shows that the method has obvious effect and advantage compared with the traditional truck crane installation benefit; if the invention is used in dangerous sections of the working section, the construction can be safely carried out, and the traditional truck crane installation cannot be carried out; table 1, measured at the critical section and by installing an equivalent number of cap beams with several truck-cranes in a conventional plain area, also shows: compared with the traditional truck crane installation, the construction period of the invention is reduced by 25 days, the total cost is reduced by 110 ten thousand, the average installation cost of each beam plate is reduced by 1700 yuan, the invention has the advantages of easy quality control, excellent quality, small installation risk coefficient and applicability to both conventional and dangerous sections; are superior to the traditional truck crane installation.
Drawings
FIG. 1 is a schematic view of the construction conditions of the present invention;
FIG. 2 is a schematic front view of the bridge traveling gantry of the present invention;
FIG. 3 is a schematic side view of the bridge traveling gantry of the present invention;
FIG. 4 is a schematic side view of the half span frame of the present invention;
FIG. 5 is a schematic front view of the half span frame of the present invention;
FIG. 6 is a schematic view of the structure of the bridge transfer frame of the present invention at the beginning of the pickup of the cap beam;
FIG. 7 is a schematic structural view of the cross-beam mobile frame of the present invention in use;
FIG. 8 is a schematic structural view of the half span beam moving frame of the present invention in use;
FIG. 9 is a schematic diagram of the structure of the method of the present invention when step (6) is completed;
FIG. 10 is a schematic view of the structure of the method of the present invention at the time of completion of step (8);
FIG. 11 is a schematic view of the structure of the method of the present invention at the time of completion of step (9);
FIG. 12 is a schematic diagram of the structure of the method of the present invention when step (11) is completed.
Wherein: 1. a bridge pier; 2. a shockproof baffle plate; 3. a second capping beam; 4. a bridge girder erection machine; 5. a cross beam; 6. a crane is transversely moved; 7. a hook; 8. a box girder is to be laid; 81. the box girder is installed; 9. a span beam moving frame; 91. a half span beam moving frame; 10. a first capping beam; 13. a third capping beam; 14. a top roll; 15. a rear hook ear; 16. a bearing pair; 17. a front hook ear; 19. a roller groove; 20. mounting a plate; 21. towing the manual hoist; 22. a wire rope; 23. a manual hoisting device is fixed in front; 24. the manual hoisting device is fixed at the back; 25. a pad; 26. a mounting seat; 27. an inner edge plate; 28. aligning the wood blocks; 29. a handle bar; 30. an outer board.
Detailed Description
The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
A method of self-transporting an installed top box girder across adjacent capping girders, as shown in figures 1 to 11. The method comprises the following steps:
(1) the device for manufacturing the self-transporting and installing the top box girder across the adjacent cover girders comprises a span girder moving frame 9 and a half span girder moving frame 91.
As shown in fig. 2, 3 and 7, a bridge transfer frame 9 for carrying and transferring the box girder 8 to be laid. The side of the span beam moving frame 9 is in a shape of a Chinese character 'men', the middle part of the span beam moving frame is provided with a top supporting plate 13, two side edges of the top supporting plate 13 are respectively and vertically provided with a side guide plate 18 downwards, the lower end edge of each side guide plate extends to the lower part of the corresponding side cover beam side edge, the side guide plates can be used for clamping and jacking the two side edges of the cover beam to guide the top supporting plate, and the strength of the top supporting plate can also be increased. The upper end face of the top supporting plate 13 is transversely provided with a plurality of roller grooves 19 at intervals side by side, the roller grooves are semicircular, top rollers 14 are arranged in the roller grooves in a shaft mode, lubricating oil can be arranged in the roller grooves to facilitate the rotation of the top rollers in the roller grooves, the lower end face of one end of the box girder is located on each top roller when the box girder is used, and the box girder can move on the upper end face of the cross girder moving frame through each top roller. The two sides of the lower end surface of the top supporting plate positioned in the side guide plate are provided with mounting plates 20, the two ends of a plurality of movable rollers 12 which are transversely arranged at intervals side by side are respectively fixed on the mounting plates 20 at the corresponding sides through bearing pairs 16, and the movable rollers are positioned and run on a pad 25 at the upper end of each cover beam when in use and move on the pad 25 by means of external force. The width of the top supporting plate on the span beam moving frame is equal to or larger than that of the cover beam. The middle parts of the front end and the rear end of the top supporting plate of the span beam moving frame are respectively provided with a front hook lug 17 and a rear hook lug 15.
As shown in fig. 4, 5 and 8, a half span beam moving frame 91 for carrying and moving the box girder to be laid on the other side of each of the capping beams having completed the installation of the box girder 81. The side of the half-side span beam moving frame is Z-shaped, the middle of the half-side span beam moving frame is provided with a top supporting plate 13, one side of the top supporting plate is downwards vertically provided with an outer side plate 30, and the lower end edge of the outer side plate extends to the lower part of the side of the corresponding side cover beam. An inner edge plate 27 is vertically arranged on the other side edge of the top supporting plate. The middle part of the upper end of the inner side plate is provided with a handle rod 29, the length of the handle rod extends to the upper end of the corresponding side where the installation of each box girder is finished, so that a person can stand on the corresponding side where the installation of each box girder is finished to support the half-side span beam moving frame conveniently. The inner and outer edge plates can increase the strength of the top supporting plate.
The upper end face of the top supporting plate is transversely provided with a plurality of roller grooves at intervals side by side, the roller grooves are internally provided with top rollers, lubricating oil can be arranged in the roller grooves to facilitate the rotation of the top rollers in the roller grooves, the lower end face of one end of the box girder is positioned on each top roller during use, and the top rollers can move on the upper end face of the span girder moving frame. The two sides of the lower end surface of the jacking plate between the inner and outer edge plates are provided with mounting plates 20, two ends of a plurality of movable rollers 12 which are transversely arranged side by side at intervals are respectively fixed on the mounting plates at the corresponding sides through bearing pairs 16, and the movable rollers are positioned and run on a pad 25 at the upper end of each cover beam when in use and move on the pad 25 by means of external force. The width of the top supporting plate on the half span beam moving frame is equal to half of the width of the cover beam. The middle parts of the front end and the rear end of the top supporting plate of the half-side span beam moving frame are respectively provided with a front hook lug 17 and a rear hook lug 15.
The span beam moving frame 9 and the half span beam moving frame 91 are both made of steel, and the top supporting plate is made of a steel plate with the thickness of at least 5 cm. The width of the half bridge transfer frame 91 is half of the width of the bridge transfer frame 9, and the length of the half bridge transfer frame 91 is the same as the length of the bridge transfer frame 9.
The length of the span beam moving frame 9 or the length of the half span beam moving frame 91 is at least equal to the sum of the widths of the bottom surfaces of the two box girders and the distance between the adjacent cover girders, so that the span beam moving frame 9 or the half span beam moving frame 91 plays a role of bridging among the cover girders; namely, when the box girder to be laid on the span beam moving frame or the half span beam moving frame moves from one capping beam edge to the other capping beam edge which is adjacent in the transverse direction, the span beam moving frame or the half span beam moving frame plays a role of a fixed bridge.
(2) The mat 25 is laid on the top surfaces of the adjacent edges of the second and third capping beams 3, 11 and the first capping beam 10 which are adjacent in the transverse direction at a spacing distance so that the top surfaces of the adjacent edges of the second and third capping beams and the first capping beam in the transverse direction are on the same plane without the barrier. Each bent cap is positioned on the corresponding pier 1, two ends of each bent cap are respectively provided with a shockproof baffle 2, and the upper end surface of each bent cap is provided with two rows of convex mounting seats 26 which are arranged corresponding to the lower grooves of the box girder. When the mat 25 is laid, the shockproof baffles 2 at the two ends of each bent cap can be detached firstly, and the shockproof baffles are fixed again after the box girder is installed, so that the height of the mat can be effectively reduced, namely the upper end surface of the mat is flush with the upper end surface of the installation seat 26.
The pad 25 is one or a combination of a plurality of I-steel, steel rail, pad stone and pad wood, the pad is strip-shaped, and the strip-shaped pads which are adjacent up and down or right and left are arranged in a staggered manner so as to be convenient for gravity conduction and partial removal.
(3) A span beam moving frame is respectively longitudinally arranged on the pad on the adjacent sides of two longitudinally adjacent second cover beams and two first cover beams in an aligned mode, a moving roller 12 below one end edge of the span beam moving frame 9 is positioned on the pad on the top surface of the adjacent side of the first cover beam 10, and a moving roller below the other end edge of the span beam moving frame is positioned on the pad on the top surface of the transverse adjacent side of the second cover beam 3; namely, when the box girder to be laid on the span beam moving frame moves from one cover beam edge to the other transversely adjacent cover beam edge, the span beam moving frame plays a role of a fixed bridge.
(4) The span beam moving frames are fixed, front hook lugs 17 at the front ends of the span beam moving frames are respectively fixed with the far end edge of the second cover beam or the far end edge of the third cover beam through a steel wire rope 22 and a traction manual hoisting device 21 which are connected in series, and rear hook lugs at the rear ends of the span beam moving frames are respectively fixed with the first cover beam through the steel wire rope and the manual hoisting device which are connected in series.
As shown in fig. 6, (5) the bridge girder erection machine 4 located on the box girder at the rear end of the first capping beam places both ends of the box girder 8 to be laid on the top rollers located at one end of the bridge girder moving frames on the longitudinally adjacent two first capping beams, respectively, and the center of gravity of the box girder to be laid is located at the rear end of the bridge girder moving frames on the longitudinally adjacent two first capping beams. The bridge girder erection machine 4 is a conventional bridge girder erection machine, and a transverse moving crane 6 on an upper end cross beam 5 of the bridge girder erection machine operates to hoist the first capping beam 10 in the range of laying the box girder through a lifting hook 7.
As shown in fig. 9, (6) the box girder to be laid is synchronously moved to the other end of the span beam moving frame on the second cover beam by the front fixed manual hoisting device 23, that is, the body end of the front fixed manual hoisting device 23 is fixed to the front hook lug 17 at the front end of the span beam moving frame by the steel wire rope, the hoisting end of the front fixed manual hoisting device 23 is fixed to the side of the box girder to be laid on the span beam moving frame, and the hoisting end of the front fixed manual hoisting device is tightened to complete the movement.
After the movement is finished, the gravity center of the box girder to be laid is positioned on the front end of the span beam moving frame on the second cover beam.
(7) The box girder to be laid is fixed on the span beam moving frame respectively, namely one side of the box girder to be laid is fixed with the front hook lug 17 at the front end of the span beam moving frame through the front fixed manual hoisting device 23, and the other side of the box girder to be laid is fixed with the rear hook lug 15 at the rear end of the span beam moving frame through the rear fixed manual hoisting device 24.
As shown in fig. 10, (8) the rear hook lugs at the rear end of each span beam moving frame are loosened and fixed with the first cover beam through the serially connected steel wire ropes and the manual hoisting device, and the span beam moving frame 9 carrying the box beam to be laid is synchronously moved through the second cover beam 3 to the end edge of the second cover beam close to the third cover beam 11 by the manual hoisting device 21.
As shown in fig. 11, (9) the span beam moving frame is fixed, the front fixed manual hoist 23 is loosened, and the rear fixed manual hoist 24 is used to synchronously move each box girder to be laid on the end edge of the span beam moving frame far away from the end edge of the third capping beam of the span beam moving frame, and at this time, the gravity center of the box girder to be laid is positioned on the rear end of the span beam moving frame on the second capping beam.
(10) And fixing the box girder to be laid on the end edges of the span beam moving frame respectively.
As shown in fig. 12, (11) the fixed state of the rear end of each span beam moving frame is released, that is, the fixed state of the rear hook lug of each span beam moving frame with the first cover beam is respectively maintained by the series connection steel wire rope and the manual lifting device (note that if the span beam moving frame needs to be fixed, the tightened state is still maintained, so the description is not repeated). Respectively and synchronously moving the front end edge of the span beam moving frame 9 loaded with the box girder 8 to be paved to a cushion object at the edge end of a third cover beam close to the second cover beam by using a traction manual hoisting device 21; namely, when the box girder to be laid on the span beam moving frame moves from the second capping beam edge to the transversely adjacent third capping beam edge, the span beam moving frame plays a role of a fixed bridge.
(12) And (5) repeating the steps (6) to (8), moving the front end edge of the cross beam moving frame carrying the box girder to be paved to a corresponding mounting position close to the other edge end of the third cover beam, fixing each cross beam moving frame, and synchronously moving the box girder to be paved on the cross beam moving frame to the front end edge of the cross beam moving frame.
(13) And then, jacking up two ends of the box girder to be laid on each span beam moving frame by adopting a manual hydraulic jack, returning each span beam moving frame and dismantling the cushion on the corresponding part of the mounting seat on the third cover girder, and mounting the lower end of the box girder to be laid on the mounting seat on the corresponding mounting seat 26 positioned at the far end edge of the third cover girder 11 to finish the mounting of the box girder to be laid.
(14) Sequentially repeating the steps (3) to (13) to sequentially complete the installation of the longitudinal two box girders from the far end edge of the third cover girder, the second cover girder to the second cover girder;
(15) after the bridge girder erection machine is used for completing the installation of each box girder on the two first cover girders, the bridge girder erection machine moves forwards to the first cover girder on which the box girder installation is completed, and the installation of the next first cover girder to the third cover girder in parallel is carried out;
(16) laying a cushion on the top surfaces of the adjacent sides of the first capping beam to the third capping beam on which the box girders are completely installed on one side and the adjacent sides of the longitudinally adjacent second capping beam and the transversely adjacent first capping beam, so that the top surfaces of the adjacent sides of the transversely adjacent first capping beam and the transversely adjacent second capping beam are on the same plane without a barrier;
(17) a half-side span beam moving frame 91 is arranged on the pad on the other side edge of the first cover beam to the third cover beam, the side edge of the pad is provided with the box beams, the aligning wood block 28 is positioned at the upper end of the mounting seat and is flush with the upper end of the pad,
the moving roller under one end edge of the half span beam moving frame is positioned on the cushion on the top surface of the adjacent edge of the first cover beam which is installed with each box beam, and the moving roller under the other end edge of the half span beam moving frame is positioned on the cushion on the top surface of the adjacent edge of the second cover beam which is installed with each box beam. When the operation half span beam moving frame 91 moves, an operator can stand on the corresponding side where the installation of each box beam is completed, and hold the handle bar.
A span beam moving frame 9 is arranged on the pad on the adjacent side of the next second cover beam and the next first cover beam longitudinally adjacent, a moving roller under one end edge of the span beam moving frame is positioned on the pad on the top surface of the adjacent side of the next first cover beam, and a moving roller under the other end edge of the span beam moving frame is positioned on the pad on the top surface of the adjacent side of the next second cover beam;
(18) repeating the steps (4) to (17) to complete the installation of each box girder of the first to third capping beams of the whole section, so that the description is not repeated
It should be noted that: the movement is synchronous, equidirectional and same-speed movement; so as to ensure the installation safety of each box girder.
The fixed box girder or half span beam moving frame to be laid is respectively arranged on the span beam moving frame or half span beam moving frame at the position: the front and rear sides of the cross beam moving frame or the half cross beam moving frame are respectively fixed with the corresponding side edges of the box girder to be laid by using front and rear fixed manual hoisting devices, and the front and rear fixed manual hoisting devices can respectively complete the front and rear movement of the box girder to be laid on the cross beam moving frame or the half cross beam moving frame.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A method for self-transporting and installing top box girders across adjacent bent girders is characterized in that: comprises the following steps;
(1) preparing a span beam moving frame and a half span beam moving frame;
(2) laying a pad on the top surfaces of adjacent edges of the second and third cover beams and the first cover beam which are adjacent in a transverse interval so that the top surfaces of the adjacent edges of the second and third cover beams and the first cover beam are on the same plane without a barrier;
(3) respectively longitudinally aligning two longitudinally adjacent second cover beams and the pad on the adjacent sides of the two first cover beams to form a span beam moving frame, wherein a moving roller below one end side of the span beam moving frame is positioned on the pad on the top surface of the adjacent side of the first cover beam, and a moving roller below the other end side of the span beam moving frame is positioned on the pad on the top surface of the transverse adjacent side of the second cover beam;
(4) the front hook lug at the front end of each cross beam moving frame is respectively fixed with the far end edge of the second cover beam or the far end edge of the third cover beam through a steel wire rope and a traction manual hoist which are connected in series, and the rear hook lug at the rear end of each cross beam moving frame is respectively fixed with the first cover beam through the steel wire rope and the manual hoist which are connected in series;
(5) the bridge girder erection machine on the box girder at the rear end of the first cover girder respectively positions two ends of a box girder to be laid on top rollers at one end of the span girder moving frame on two longitudinally adjacent first cover girders, and the gravity center of the box girder to be laid is positioned at the rear end of the span girder moving frame on two longitudinally adjacent first cover girders;
(6) synchronously moving the box girder to be laid to the other end of the span beam moving frame on the second cover girder by using a front fixed manual hoisting device respectively, wherein the gravity center of the box girder to be laid is positioned on the front end of the span beam moving frame on the second cover girder;
(7) fixing the box girder to be laid on the span beam moving frame respectively;
(8) loosening the state that rear hook lugs at the rear end of each span beam moving frame are respectively fixed with the first cover beam through the steel wire ropes and the manual hoisting devices which are connected in series, and respectively and synchronously moving the span beam moving frame carrying the box beam to be paved to the end edge, close to the third cover beam, of the second cover beam through the second cover beam by using the manual hoisting devices;
(9) fixing the span beam moving frame, loosening the front fixed manual hoisting device, and synchronously moving each box girder to be laid on the end edge of the span beam moving frame, which is far away from the end edge of the third cover beam, of the span beam moving frame by using the rear fixed manual hoisting device respectively, wherein the gravity center of the box girder to be laid is positioned on the rear end of the span beam moving frame on the second cover beam;
(10) fixing the box girder to be laid on the end edges of the span beam moving frame respectively;
(11) loosening the state that the rear hook lugs at the rear end of each span beam moving frame are respectively fixed with the first cover beam through the steel wire ropes and the manual hoisting devices which are connected in series, and respectively and synchronously moving the front end edge of the span beam moving frame loaded with the box girder to be paved to a cushion at the edge end of the third cover beam close to the second cover beam by using the manual hoisting devices;
(12) repeating the steps (6) to (8), moving the front end edge of the span beam moving frame carrying the box girder to be laid to a corresponding mounting position close to the other edge end of the third cover beam, fixing each span beam moving frame, and synchronously moving the box girder to be laid on the span beam moving frame to the front end edge of the span beam moving frame;
(13) then, jacking up two ends of the box girder to be laid on each span beam moving frame by adopting a manual hydraulic jack, returning each span beam moving frame and dismantling a cushion on the corresponding part of the mounting seat on the third cover girder, and mounting the lower end of the box girder to be laid on the mounting seat on the corresponding mounting seat on the far end edge of the third cover girder to finish the mounting of the box girder to be laid;
(14) sequentially repeating the steps (3) to (13) to sequentially complete the installation of the longitudinal two box girders from the far end edge of the third cover girder, the second cover girder to the second cover girder;
(15) after the bridge girder erection machine is used for completing the installation of each box girder on the two first cover girders, the bridge girder erection machine moves forwards to the first cover girder on which the box girder installation is completed, and the installation of the next first cover girder to the third cover girder in parallel is carried out;
(16) laying a cushion on the top surfaces of the adjacent sides of the first capping beam to the third capping beam on which the box girders are completely installed on one side and the adjacent sides of the longitudinally adjacent second capping beam and the transversely adjacent first capping beam, so that the top surfaces of the adjacent sides of the transversely adjacent first capping beam and the transversely adjacent second capping beam are on the same plane without a barrier;
(17) a half-side span beam moving frame is arranged on the pad on the other side edge of the first cover beam to the third cover beam, the mounting of each box beam is finished, a moving roller under one end edge of the half-side span beam moving frame is positioned on the pad on the top surface of the adjacent side of the first cover beam, and the mounting of each box beam is finished, and a moving roller under the other end edge of the half-side span beam moving frame is positioned on the pad on the top surface of the adjacent side of the second cover beam;
a cross beam moving frame is arranged on the pad on the adjacent side of the next second cover beam and the next first cover beam longitudinally adjacent, a moving roller below one end side of the cross beam moving frame is positioned on the pad on the top surface of the adjacent side of the next first cover beam, and a moving roller below the other end side of the cross beam moving frame is positioned on the pad on the top surface of the adjacent side of the next second cover beam;
(18) and (5) repeating the steps (4) to (17) until the installation of each box girder of the first to third cover girders of the whole section is completed.
2. The method of claim 1, wherein: the pad is one or a combination of a plurality of I-steel, steel rails, a cushion stone and a skid.
3. The method of claim 1, wherein: the length of the span beam moving frame or the length of the half span beam moving frame is at least equal to the sum of the width of the bottom surfaces of the two box girders and the distance between the adjacent cover girders.
4. The method of claim 1, wherein: when the box girder to be laid on the span beam moving frame or the half span beam moving frame moves from one cover beam edge to the other transversely adjacent cover beam edge, the span beam moving frame or the half span beam moving frame plays a role of a fixed bridge.
5. The method of claim 1, wherein: the front and rear sides of the span beam moving frame or the half span beam moving frame are respectively fixed with the corresponding side edges of the box girder to be paved by a front and rear fixed manual hoisting device; and the front and rear fixed manual hoisting devices respectively complete the front and rear movement of the box girder to be laid on the cross girder moving frame.
6. The method of claim 1, wherein: the cushion is in a strip shape, and the strip-shaped cushions which are adjacent up and down or right and left are arranged in a staggered manner.
7. An apparatus for carrying out the method of self-transporting and installing a top box girder across adjacent capping beams of claim 1, comprising a manual hoist, wherein: the device also comprises a span beam moving frame and a half span beam moving frame;
the cross beam moving frame is used for bearing and moving box girders to be laid, the side edges of the cross beam moving frame are in a shape of a Chinese character 'men', the middle part of the cross beam moving frame is provided with a top supporting plate, the two side edges of the top supporting plate are downwards respectively and vertically provided with side guide plates, the upper end surface of the top supporting plate is transversely provided with a plurality of roller grooves side by side at intervals, roller grooves are internally provided with top rollers, the two sides of the lower end surface of the top supporting plate positioned in the side guide plates are provided with mounting plates, and the two ends of a plurality of moving rollers which are transversely arranged side by side at intervals are respectively fixed on the mounting plates at the corresponding sides through bearing pairs;
half span roof beam carriage release for bearing and removing the opposite side edge of accomplishing each bent cap of each case roof beam of installation and waiting to lay the case roof beam, half span roof beam carriage release's side is the Z style of calligraphy, half span roof beam carriage release's middle part is equipped with a layer board, a side of top layer board is equipped with the outside board downwards perpendicularly, the opposite side of top layer board is equipped with the inside board perpendicularly, the upper end middle part of inside board is equipped with the handle pole, the up end of top layer board transversely is the interval distance and is equipped with a plurality of roller groove side by side, the axle is equipped with the knock-out roll in the roller groove, be located, the terminal surface both sides are equipped with the mounting panel under the top layer board between the outside board side by side, transversely be a plurality of that the interval distance set up and remove the roller both ends and fix on the mounting panel that corresponds the side through the bearing pair respectively.
8. The apparatus of claim 7, wherein: the lower end edge of the side guide plate extends to the lower part of the side edge of the corresponding side cover beam.
9. The apparatus of claim 7, wherein: the width of the top supporting plate on the span beam moving frame is equal to or larger than that of the cover beam, and the width of the top supporting plate on the half span beam moving frame is equal to that of the cover beam.
10. The apparatus of claim 7, wherein: the middle parts of the front end and the rear end of the top supporting plate of the span beam moving frame or the half span beam moving frame are respectively provided with a front hook lug and a rear hook lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111213037.9A CN113756210B (en) | 2021-10-19 | 2021-10-19 | Device and method for self-transporting and mounting top box girder across adjacent bent cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111213037.9A CN113756210B (en) | 2021-10-19 | 2021-10-19 | Device and method for self-transporting and mounting top box girder across adjacent bent cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113756210A true CN113756210A (en) | 2021-12-07 |
| CN113756210B CN113756210B (en) | 2023-02-10 |
Family
ID=78799774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111213037.9A Active CN113756210B (en) | 2021-10-19 | 2021-10-19 | Device and method for self-transporting and mounting top box girder across adjacent bent cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113756210B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE655908A (en) * | 1963-11-22 | 1965-03-16 | ||
| CN101324053A (en) * | 2008-08-01 | 2008-12-17 | 中铁大桥局集团第三工程有限公司 | Double line box girder downward mobile formwork bridge fabrication machine and construction method thereof |
| CN109695204A (en) * | 2018-07-08 | 2019-04-30 | 中铁十一局集团汉江重工有限公司 | A kind of Bridge Erector and bridge erection method |
| CN110273364A (en) * | 2018-03-17 | 2019-09-24 | 中铁第五勘察设计院集团有限公司 | In the method set a roof beam in place on station of setting a roof beam in place |
| CN110331672A (en) * | 2019-08-14 | 2019-10-15 | 中交一公局第一工程有限公司 | Across the pier bale handle holder device in bridge side position and its simple and fast construction method |
| CN210766417U (en) * | 2019-08-14 | 2020-06-16 | 中交一公局第一工程有限公司 | Pier-spanning lifting beam support device at side position of bridge |
| CN111764298A (en) * | 2020-07-16 | 2020-10-13 | 中交一公局第一工程有限公司 | Common support system for cast-in-place closure sections of box girders of steel bridge and construction method of common support system |
-
2021
- 2021-10-19 CN CN202111213037.9A patent/CN113756210B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE655908A (en) * | 1963-11-22 | 1965-03-16 | ||
| CN101324053A (en) * | 2008-08-01 | 2008-12-17 | 中铁大桥局集团第三工程有限公司 | Double line box girder downward mobile formwork bridge fabrication machine and construction method thereof |
| CN110273364A (en) * | 2018-03-17 | 2019-09-24 | 中铁第五勘察设计院集团有限公司 | In the method set a roof beam in place on station of setting a roof beam in place |
| CN109695204A (en) * | 2018-07-08 | 2019-04-30 | 中铁十一局集团汉江重工有限公司 | A kind of Bridge Erector and bridge erection method |
| CN110331672A (en) * | 2019-08-14 | 2019-10-15 | 中交一公局第一工程有限公司 | Across the pier bale handle holder device in bridge side position and its simple and fast construction method |
| CN210766417U (en) * | 2019-08-14 | 2020-06-16 | 中交一公局第一工程有限公司 | Pier-spanning lifting beam support device at side position of bridge |
| CN111764298A (en) * | 2020-07-16 | 2020-10-13 | 中交一公局第一工程有限公司 | Common support system for cast-in-place closure sections of box girders of steel bridge and construction method of common support system |
Non-Patent Citations (2)
| Title |
|---|
| 俞明耀等: "现浇连续箱梁施工质量控制", 《浙江建筑》 * |
| 张东山等: "现浇箱梁大跨度钢管贝雷与碗扣组合支架设计与分析", 《施工技术》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113756210B (en) | 2023-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4956332B2 (en) | Bridge girder replacement method | |
| CN110886233A (en) | Construction method for connecting T-shaped beam with bridge | |
| CN112575694A (en) | Mounting construction method for long-span T beam | |
| KR100454406B1 (en) | Method and apparatus for changing steel bridge of supporting rail into concrete bridge using temporary bent | |
| CN113279335A (en) | Device and method for mounting large-tonnage and wide-width steel box girder across mountain ridge | |
| CN108625270A (en) | Nose girder gantry crane installs bridge prefabrication box girder construction method | |
| CN113622310A (en) | Method for transporting beam and frame beam suitable for small-radius curve section | |
| JP2001146716A (en) | Erection method for bridge beam | |
| CN113756210B (en) | Device and method for self-transporting and mounting top box girder across adjacent bent cap | |
| KR101234090B1 (en) | Method for changing girder of railway plate girder bridge | |
| CN111705682A (en) | Construction method and equipment for removing and rebuilding superstructure of widened bridge across electrified railway | |
| CN106677076A (en) | Simple and rapid method and device for mounting box girder at the top of adjacent bent cap by using span pier gantry crane | |
| KR20100021874A (en) | Method for removing, installing and replacing an upper structure of bridge, and lifting apparatus and transportation vehicle of the upper structure of bridge for the method | |
| CN110578526A (en) | construction method for translation of shield trolley in semi-covered excavation subway station | |
| CN201046888Y (en) | Bridge-dismantling hoisting device | |
| CN214462917U (en) | Movable type packway system for large-span special-shaped lighting roof | |
| CN111139742B (en) | Method for mounting and dismounting highway bridge girder erection machine | |
| JP5133146B2 (en) | Railway girder moving installation method and railway girder removal method | |
| CN104213512B (en) | Fortune frame railway D beam one chassis and D beam installation method | |
| CN216586200U (en) | Device for moving large-tonnage steel box girder | |
| CN214831989U (en) | Device for mounting large-tonnage and wide-width steel box girder across mountain ridge | |
| CN111824191A (en) | Method special for transporting assembled box girder of heavy prefabricated arch bridge | |
| CN212714587U (en) | Equipment for removing and rebuilding superstructure of widened bridge across electrified railway | |
| CN216764103U (en) | Hoisting portal frame for roller type combined cable saddle | |
| CN217733717U (en) | Manual longitudinal D-shaped temporary girder moving trolley during existing line jacking culvert 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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230113 Address after: 100024 block a, Shitong international building, zhoujiajing, Guanzhuang, Chaoyang District, Beijing Applicant after: CCCC FIRST HIGHWAY ENGINEERING GROUP Co.,Ltd. Applicant after: NO 1 ENGINEERING Co.,Ltd. OF FHEC OF CCCC Address before: 100076 No.2, East Yangfang Road, Yangfang Town, Changping District, Beijing Applicant before: NO 1 ENGINEERING Co.,Ltd. OF FHEC OF CCCC |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |