CN112726418A - Connecting frame device for large steel structure bridge displacement and using method thereof - Google Patents
Connecting frame device for large steel structure bridge displacement and using method thereof Download PDFInfo
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- CN112726418A CN112726418A CN202110039612.1A CN202110039612A CN112726418A CN 112726418 A CN112726418 A CN 112726418A CN 202110039612 A CN202110039612 A CN 202110039612A CN 112726418 A CN112726418 A CN 112726418A
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- connecting frame
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- 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
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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Abstract
The invention discloses a connecting frame device for large steel structure bridge displacement and a use method thereof, wherein the connecting frame device comprises a connecting frame body for connecting sea and land side supporting frames and a support structure arranged on the connecting frame body; the support structure comprises a plurality of connecting supports which are connected in sequence; the bottom of each connecting support is provided with a sliding plate beam, and a height adjusting structure is arranged on each sliding plate beam; fixing seats are arranged at two ends of the bottom of each connecting support, and a fixing plate is arranged between the fixing seats; the connecting frame device also comprises slideways laid on the wharf surface, and the number of the slideways is matched with the number of the connecting supports; the skid beam moves along the skid. The invention overcomes the problem of insufficient compression stability of the slender rod in the displacement process of the large steel structure bridge.
Description
Technical Field
The invention relates to a large steel structure bridge displacement technology, in particular to a connecting frame device for large steel structure bridge displacement and a using method thereof.
Background
The main span of the large steel structure bridge is generally dead weight of ten thousand tons, and after the main span is manufactured at a wharf of a manufacturing plant, a transport ship is required to be transported to an installation site for installation, and because some installation sites do not have large floating crane equipment of more than ten thousand tons for hoisting, the large steel structure bridge is required to be placed on a support frame with the height of about 20 meters away from the ground for manufacturing at a production plant based on the requirement of the installation height of some large steel structure bridges, and then the large steel structure bridge and the support frame are integrally slid onto the ship together and transported to the installation site for installation.
As shown in fig. 1, because the height of the supporting frame is high, in order to reduce the weight of the supporting frame and save the cost, the supporting frame 200 below the main span 100 of the large steel structure bridge is generally not designed to be an integral continuous structure, but is designed to be a split structure, two sections of supporting frames 200 are only arranged at the head and tail positions of the main span 100, and the total weight of the two sections of supporting frames 200 is about 1500 tons.
After the main span 100 is completely folded on the support frame 200, the main span 100 is fixed above the support frame 200, and then the main span 100 and the two sections of support frames 200 are integrally slid to a transport ship 400 from a wharf 300, wherein the total weight of the main span 100 and the two sections of support frames 200 is 1.2 ten thousand tons. In order to cope with sudden failures during the sliding from the quay 300 to the carrier 400, a pull-back system is provided in addition to the traction system for pulling back in case of failures.
The maximum resistance can reach 1200 tons when the main span 100 and the two supporting frames 200 integrally slide, and due to wharfs and equipment, dragging points of some traction and pull-back systems are arranged on the sea side supporting frame 200, and the sea side supporting frame 200 pulls the main span 100 and the land side supporting frame 200 to slide forwards together during traction; during the retraction, the sea side cradle 200 pushes the main bay 100 and the land side cradle 200 to slide backwards together. In the sliding process of the support frame 200, in order to prevent the self structure of the large steel structure bridge and the local structure of the joint of the main span 100 and the top of the support frame 200 from being damaged, a light-weight connecting frame is required to be arranged between the two sections of support frames 200 to connect the two sections of support frames into a whole, so that the working conditions of tension and compression can be met simultaneously.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a connecting frame device for large-scale steel structure bridge displacement and a using method thereof, and solves the problem that the pressure stability of a slender rod is insufficient in the large-scale steel structure bridge displacement process.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the connecting frame device for the displacement of the large steel structure bridge comprises a connecting frame body for connecting sea and land side supporting frames and a support structure arranged on the connecting frame body;
the support structure comprises a plurality of connecting supports which are connected in sequence;
the bottom of each connecting support is provided with a sliding plate beam, and a height adjusting structure is arranged on each sliding plate beam;
fixing seats are arranged at two ends of the bottom of each connecting support, and a fixing plate is arranged between the fixing seats;
the connecting frame device also comprises slideways laid on the wharf surface, and the number of the slideways is matched with the number of the connecting supports;
the skid beam moves along the skid.
Preferably, the number of the connecting supports is more than or equal to 3.
Preferably, the connecting frame body comprises longitudinal connecting pipes matched with the connecting supports in number.
Preferably, the connecting supports are connected through a transverse connecting pipe.
Preferably, a toggle plate is arranged between the connecting support and the transverse connecting pipe.
Preferably, the height adjusting structure is a wedge batten.
Preferably, the slideway is fixed on the wharf surface through a horse board.
Preferably, two sides of the top surface of the slideway are provided with baffles.
Preferably, the length of the connecting frame body is 55-57 meters, and the width of the connecting frame body is 29-31 meters.
On the other hand, the use method of the connecting frame device for the displacement of the large steel structure bridge comprises the following steps:
1) before preparing for sliding, paving the slideway in the connecting frame device for the large steel structure bridge to move on the wharf surface, and fixing the wharf surface and the slideway by adopting the horse board;
2) the sea side support frame and the land side support frame withdrawal pier transfer the weight of the sea side support frame, the land side support frame and the main span to the slide way;
3) arranging the sliding plate beam on the slideway, and adjusting the central line of the sliding plate beam to coincide with the central line of the slideway;
4) installing the connecting support, additionally cushioning the height-adjusting structure between the connecting support and the sliding plate beam, and adjusting the height of the bottom surface of the connecting support to be horizontal to the bottom surfaces of the sea side support frame and the land side support frame;
5) mounting the fixed seat and the fixed plate according to the actual clearance lofting of the connecting support and the sliding plate beam to form the support structure;
6) installing the connecting frame body, wherein the end part of the connecting frame body adopts a toggle plate and rib plates in the structural member to align ribs;
7) after the installation is finished, the sea side supporting frame pulls or pushes the land side supporting frame to slide along the slide way through the connecting frame device.
The connecting frame device for large steel structure bridge displacement and the use method thereof provided by the invention also have the following beneficial effects:
1) when a bridge main span with the weight of over ten thousand tons is erected and slid through the support frames, the support frames do not need to be manufactured into a whole, only two sections of independent support frames need to be arranged in a large span, and then the connection is carried out by using the sea and land side connecting frames, so that the erection and integral sliding of the bridge main span and the support frames can be realized, and a large amount of support frame manufacturing cost is saved;
2) the marine and land side connecting frames are convenient to assemble and disassemble, can be quickly disassembled after being loaded on a ship only by being installed a few days before the main span of the bridge slides, and can be installed without manufacturing the main span, so that the occupation of wharfs and ship space resources by the connecting frames and the blockage of field channels are reduced, the personnel and equipment can conveniently enter and exit, and the influence of the personnel and equipment on the construction is reduced to the minimum;
3) the bottom of the support frame is connected into a whole by using the sea and land side connecting frames, so that the tensile force and pressure applied in the sliding process are converted into the internal force of the connecting frame structure, the damage to the structure of the main span of the bridge and the local structure of the connecting part of the main span and the upper part of the support frame is avoided, and the product is well protected;
4) after the sea and land side connecting frames are adopted, the main bridge span and the supporting frame can be pulled forwards when integrally sliding on a ship, and can be pulled backwards when a fault occurs, so that the safety of the integral sliding on the ship when the main bridge span and the supporting frame are erected is greatly improved;
5) the structure of the connecting frame is optimized to the maximum, only the straight pipe and the inserting plate are used, the site construction is convenient, the integrity of the material is ensured to the maximum extent, and the connecting frame can be reused in other projects to the maximum extent after the project is finished;
6) the connecting support is designed in the weakest middle part of the connecting frame, and the displacement of the connecting support in each direction is restrained by adopting the method of the invention, so that the axial center pressure capacity of the connecting frame is greatly improved.
Drawings
FIG. 1 is a schematic view of an existing bridge main span elevated integral slip boarding ship;
FIG. 2 is a schematic view of a field layout of the interface frame assembly of the present invention;
FIG. 3 is a schematic top view of the connector apparatus of the present invention;
FIG. 4 is a schematic view in the direction A of FIG. 3;
fig. 5 is a schematic view of direction B in fig. 4.
Detailed Description
In order to better understand the technical solutions of the present invention, the following further describes the technical solutions of the present invention with reference to the accompanying drawings and examples.
Referring to fig. 3 to 5, the connecting frame device for shifting a large steel structure bridge provided by the present invention includes a connecting frame body 3 for connecting the sea and land side supporting frames 1 and 2, and a support structure 4 installed on the connecting frame body 3.
The support structure 4 comprises a plurality of 3 connection supports 6 connected in sequence by transverse connection pipes 5, the connection direction of the connection supports 6 and the transverse connection pipes 5 being perpendicular to the direction from the quay 300 to the transport ship.
The bottom of every connection support 6 all is provided with slide roof beam 7, has on the slide roof beam 7 to increase the structure 8, and in this embodiment, it chooses for use the slide wedge flitch to increase the structure 8.
Fixing seats 9 are arranged at two ends of the bottom of each connecting support 6, and a fixing plate 10 is arranged in the middle of each fixing seat 9.
The connecting frame device also comprises slideways 11 laid on the face of the wharf 300 and fixed by horse boards 12, the number of the slideways 11 is matched with the number of the connecting supports 6, and the number of the slideways 11 and the number of the connecting supports 6 are more than or equal to 3.
The skid beams 7 move along their corresponding runners 11.
The baffle plates 13 are arranged on two sides of the top surface of each slide rail 11, so that the slide plate beam 7 is prevented from deviating from the slide rail 11 when sliding.
The connecting frame body 3 comprises longitudinal connecting pipes matched with the connecting supports 6 in number, and the connecting supports 6 are sleeved on the corresponding longitudinal connecting pipes.
The connecting support 6 and the transverse connecting pipe 5 are connected by adding a toggle plate 14 to increase the connecting strength.
Referring to fig. 2, the connecting frame device of the present invention is implemented according to the following principle: in the sliding process, the connecting frame device 100 is arranged between the sea side support frame 1 and the land side support frame 2, and the traction force (pulling force or pressure) acting on the sea side support frame 1 in the sliding process is transmitted to the land side support frame 2 through the connecting frame device 100, so that the land side support frame 2 is pulled to advance or the land side support frame 2 is pushed to retreat. The length of the connecting frame device is 55.7 meters, the width of the connecting frame device is 30 meters, the maximum sliding resistance is 1200 tons, and the following measures are taken aiming at the weakest part of the connecting frame body 3 extruded and deformed on the connecting frame device:
1) the support structure 4 with a certain dead weight is arranged at the maximum position of the extrusion deformation of the middle part of the connecting frame body 3, the support structure 4 can prevent the connecting frame body 3 from upwards displacing and deforming when being extruded through the dead weight, can play a role of transfer, is conveniently connected with each longitudinal connecting pipe and each transverse connecting pipe 5, and reduces the field installation difficulty of each pipe fitting;
2) a sliding plate beam 7 is arranged below a connecting support 6 in the support structure 4, and the height of the bottom surface of the connecting support 6 is adjusted through a height adjusting structure 8 (wedge batten) on the sliding plate beam 7 and supports the connecting support 6. The connecting support 6 can slide on the slideway 11 through the sliding plate beam 7, and the slideway 11 is fixed on the wharf 300, so that the connecting frame body 3 can be effectively prevented from downward displacement and deformation when being extruded;
3) the fixed seats 9 are arranged at the head and the tail of the connecting support 6, the fixed plate 10 is arranged in the middle, and the sliding plate beam 7 below the fixed plate and the fixed plate form a rigid whole. The slide way 11 is fixed on the wharf 300 by a horse board 12, the baffle plates 13 are arranged on two sides of the slide way 11, and in the sliding process, the baffle plates 13 can effectively restrict the displacement of the sliding plate beam 7 which is connected with the support 6 to form a whole in the horizontal direction;
4) the connecting support 6 has a certain length, is connected with the two groups of transverse connecting pipes 5 end to end, can keep the connecting support 6 stable in stress in the sliding process, does not deflect, eliminates the requirement of the connecting frame body 3 on the inclined pipe, and reduces the difficulty of site construction.
Through the design, the connecting support 6 is effectively constrained in displacement in all directions, the axial compression resistance of the connecting frame device is greatly enhanced, the construction cost is saved, the investment of manpower, equipment and materials is greatly reduced, and the connecting frame device has high economic value.
The invention also provides a use method of the connecting frame device for the displacement of the large steel structure bridge, which comprises the following steps:
1) before preparation of sliding, three slideways 11 in a connecting frame device 100 for large steel structure bridge displacement are paved on the 300 surface of the wharf, and the 300 surface of the wharf and the slideways 11 are fixed by adopting horse boards 12;
2) the pier of the sea side support frame 1 and the pier of the land side support frame 2 are removed, and the weight of the sea side support frame 1, the land side support frame 2 and the main span is transmitted to the slideway 11;
3) a sliding plate beam 7 is arranged on a sliding way 11 connected with the bottom of the support 6, and the central line of the sliding plate beam 7 is adjusted to be coincident with the central line of the sliding way 11;
4) installing a connecting support 6, adding a cushion height-adjusting structure 8 (wedge batten) between the connecting support 6 and a sliding plate beam 7, and adjusting the height of the bottom surface of the connecting support 6 to be horizontal to the bottom surfaces of the sea side support frame 1 and the land side support frame 2;
5) according to the actual clearance lofting of the connecting support 6 and the sliding plate beam 7, a fixed seat 9 and a fixed plate 10 are installed to form a support structure, so that the connecting support 6 and the sliding plate beam 7 form a rigid whole;
6) installing a connecting frame body 3 and a transverse connecting pipe 5, wherein the end parts of the connecting frame body and the transverse connecting pipe adopt a toggle plate 14 and rib alignment of a structural member internal rib plate;
7) after the installation, the sea-side support frame 1 pulls or pushes the land-side support frame 2 to slide along the slideway 11 through the connecting frame device 100.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a link device that large steel structure bridge shifted usefulness which characterized in that: the device comprises a connecting frame body used for connecting sea and land side supporting frames and a support structure arranged on the connecting frame body;
the support structure comprises a plurality of connecting supports which are connected in sequence;
the bottom of each connecting support is provided with a sliding plate beam, and a height adjusting structure is arranged on each sliding plate beam;
fixing seats are arranged at two ends of the bottom of each connecting support, and a fixing plate is arranged between the fixing seats;
the connecting frame device also comprises slideways laid on the wharf surface, and the number of the slideways is matched with the number of the connecting supports;
the skid beam moves along the skid.
2. The connecting frame device for large steel structure bridge displacement according to claim 1, wherein: the number of the connecting supports is more than or equal to 3.
3. The connecting frame device for large steel structure bridge displacement according to claim 2, wherein: the connecting frame body comprises longitudinal connecting pipes matched with the connecting supports in number.
4. The connecting frame device for large steel structure bridge displacement according to claim 2, wherein: the connecting supports are connected through a transverse connecting pipe.
5. The connecting frame device for large steel structure bridge displacement according to claim 4, wherein: and a toggle plate is arranged between the connecting support and the transverse connecting pipe.
6. The connecting frame device for large steel structure bridge displacement according to claim 1, wherein: the height adjusting structure is a wedge batten.
7. The connecting frame device for large steel structure bridge displacement according to claim 1, wherein: the slideway is fixed on the wharf surface through a horse board.
8. The connecting frame device for large steel structure bridge displacement according to claim 1, wherein: and baffles are arranged on two sides of the top surface of the slide way.
9. The connecting frame device for large steel structure bridge displacement according to claim 1, wherein: the length of the connecting frame body is 55-57 meters, and the width of the connecting frame body is 29-31 meters.
10. The use method of the connecting frame device for the displacement of the large steel structure bridge is characterized by comprising the following steps of:
1) before preparation of sliding, the slide ways in the connecting frame device for the large-scale steel structure bridge displacement according to any one of claims 1 to 9 are laid on the wharf surface, and the wharf surface and the slide ways are fixed by the horse boards;
2) the sea side support frame and the land side support frame withdrawal pier transfer the weight of the sea side support frame, the land side support frame and the main span to the slide way;
3) arranging the sliding plate beam on the slideway, and adjusting the central line of the sliding plate beam to coincide with the central line of the slideway;
4) installing the connecting support, additionally cushioning the height-adjusting structure between the connecting support and the sliding plate beam, and adjusting the height of the bottom surface of the connecting support to be horizontal to the bottom surfaces of the sea side support frame and the land side support frame;
5) mounting the fixed seat and the fixed plate according to the actual clearance lofting of the connecting support and the sliding plate beam to form the support structure;
6) installing the connecting frame body, wherein the end part of the connecting frame body adopts a toggle plate and rib plates in the structural member to align ribs;
7) after the installation is finished, the sea side supporting frame pulls or pushes the land side supporting frame to slide along the slide way through the connecting frame device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110039612.1A CN112726418A (en) | 2021-01-13 | 2021-01-13 | Connecting frame device for large steel structure bridge displacement and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110039612.1A CN112726418A (en) | 2021-01-13 | 2021-01-13 | Connecting frame device for large steel structure bridge displacement and using method thereof |
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| CN112726418A true CN112726418A (en) | 2021-04-30 |
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| CN202110039612.1A Pending CN112726418A (en) | 2021-01-13 | 2021-01-13 | Connecting frame device for large steel structure bridge displacement and using method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338223A (en) * | 2021-06-09 | 2021-09-03 | 上海振华重工(集团)股份有限公司 | Method for adjusting unloading load |
| CN113356079A (en) * | 2021-07-09 | 2021-09-07 | 上海振华重工(集团)股份有限公司 | Method and system for installing large steel bridge |
-
2021
- 2021-01-13 CN CN202110039612.1A patent/CN112726418A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338223A (en) * | 2021-06-09 | 2021-09-03 | 上海振华重工(集团)股份有限公司 | Method for adjusting unloading load |
| CN113356079A (en) * | 2021-07-09 | 2021-09-07 | 上海振华重工(集团)股份有限公司 | Method and system for installing large steel bridge |
| WO2023279548A1 (en) * | 2021-07-09 | 2023-01-12 | 上海振华重工(集团)股份有限公司 | Method and system for mounting large steel bridge |
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