CN212956170U - System for dismantling and replacing bridge deck structure of ultra-large span steel pipe concrete arch bridge - Google Patents
System for dismantling and replacing bridge deck structure of ultra-large span steel pipe concrete arch bridge Download PDFInfo
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- CN212956170U CN212956170U CN202021126618.XU CN202021126618U CN212956170U CN 212956170 U CN212956170 U CN 212956170U CN 202021126618 U CN202021126618 U CN 202021126618U CN 212956170 U CN212956170 U CN 212956170U
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Abstract
The utility model discloses a system is demolishd and change to super large stride footpath steel pipe concrete arch bridge floor structure, include: a pair of load-bearing structures; the pair of longitudinal steel truss girder structures comprises longitudinal steel truss girder bodies, longitudinal guide rails and longitudinal transport vehicles; the transverse bridge steel truss structure comprises a transverse bridge steel truss main body, a transverse bridge guide rail and a transverse bridge transport vehicle; and the hoisting structure comprises a crane and a lifting appliance, wherein the crane is placed on the transverse bridge transport vehicle, and the crane suspends the bridge deck structure to be dismantled or replaced through the lifting appliance. The utility model discloses can be on existing bridge floor structure quick, high-efficient whole demolish, change piecemeal bridge floor structure, do not occupy the underbridge space, influence the underbridge normal navigation, the on-the-spot installation is quick, convenient, can reuse.
Description
Technical Field
The utility model relates to a bridge construction technical field. More specifically speaking, the utility model relates to a system is demolishd and change to super large stride footpath steel pipe concrete arch bridge floor structure.
Background
In the recent 30 years of development history of the concrete-filled steel tube arch bridge in China, concrete is filled into a thin-wall circular steel tube to form a concrete-filled steel tube composite material which is used as an arch rib and can enhance the stability of the tube wall, a hoop effect is generated on core concrete, the concrete in the steel tube composite material is in a three-dimensional compression state, and the concrete-filled steel tube arch bridge has higher compression strength and deformability. At present, the span of the super-large span concrete-filled steel tube arch bridge is as high as 530m, and the bridge structure is damaged and needs to be maintained, reinforced and reconstructed. The bridge deck structure needs to be partitioned during integral dismantling and replacement, and how to overcome physical conditions (such as overlarge wind speed and a specific mode of suspension rod suspension connection) during dismantling and replacement and ensure normal navigation under a bridge is a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses still another purpose provides a system is demolishd and change to super large stride footpath steel pipe concrete arch bridge floor structure, and it can be structural quick, high-efficient whole demolishs, changes the piecemeal bridge floor structure at existing bridge floor, does not occupy the underbridge space, influences the underbridge normal navigation, and the on-the-spot installation is quick, convenient, can reuse.
In order to realize according to the utility model discloses a these purposes and other advantages provide an ultra large span steel pipe concrete arch bridge deck structure demolishs and change system, a serial communication port, include:
the bearing structures are symmetrically arranged on the replaced bridge deck structure along the longitudinal bridge direction and comprise two bearing piers which are arranged in a straight line, wherein a bearing frame is detachably connected to the two sides of one bearing pier close to the bridge deck structure to be detached or replaced in the longitudinal bridge direction, and the bearing frames are oppositely arranged on the single side of the other bearing pier far away from the bridge deck structure to be detached or replaced;
the pair of longitudinal steel truss girder structures comprises a longitudinal steel truss girder main body, longitudinal guide rails and a longitudinal transport vehicle, wherein the bottom of the longitudinal steel truss girder main body is detachably connected with the force bearing piers and the force bearing frame, a connection point of one force bearing pier is positioned on one side, away from the bridge deck structure to be dismantled or replaced, of the longitudinal steel truss girder main body, a connection point of the other force bearing pier is positioned at the middle point of the longitudinal steel truss girder main body, the other side of the longitudinal steel truss girder main body is positioned right above the bridge deck structure to be dismantled or replaced, the longitudinal guide rails are arranged at the top of the longitudinal steel truss girder main body, and the longitudinal transport vehicle moves along the longitudinal guide rails;
the transverse bridge steel truss girder structure comprises a transverse bridge steel truss girder main body, a transverse bridge guide rail and a transverse bridge transport vehicle, wherein the bottom of the transverse bridge steel truss girder main body is detachably connected with a pair of longitudinal bridge transport vehicles, the transverse bridge guide rail is arranged at the top of the transverse bridge steel truss girder main body, and the transverse bridge transport vehicle moves along the transverse bridge guide rail;
and the hoisting structure comprises a crane and a lifting appliance, wherein the crane is placed on the transverse bridge transport vehicle, and the crane suspends the bridge deck structure to be dismantled or replaced through the lifting appliance.
Preferably, the force-bearing frame comprises a main support, and the main support is connected with the force-bearing pier and the longitudinal steel truss girder main body.
Preferably, the force-bearing frame further comprises a first auxiliary support and a second auxiliary support, the first auxiliary support is connected with the force-bearing pier and the main support, and the second auxiliary support is connected with the longitudinal steel truss girder main body and the main support.
Preferably, the outrigger further comprises a third auxiliary support, and the third auxiliary support is connected to the main support and the first auxiliary support, or the main support and the second auxiliary support, or the first auxiliary support and the second auxiliary support.
Preferably, the bridge structure further comprises a plurality of pairs of stiffening legs, the stiffening legs support the hard pier and the replaced bridge deck structure in an inclined mode, and the pair of stiffening legs are located on the same transverse bridge section.
Preferably, the longitudinal length of the longitudinal steel truss girder main body is slightly larger than the bridge deck structure to be removed or replaced.
The utility model discloses at least, include following beneficial effect:
firstly, the utility model discloses based on the bridge floor structure that has changed, form the strong point through the load structure, form the longitudinal bridge through the longitudinal bridge to the steel truss structure and move the route to the longitudinal bridge, form the horizontal bridge through the horizontal bridge to the steel truss structure and move the route to the horizontal bridge, lift by crane the structure and wait to demolish or the bridge floor structure of changing and put down, realize the aerial operation, do not occupy the space under the bridge, influence the normal navigation under the bridge, the on-the-spot installation is quick, convenient, can reuse;
secondly, the force bearing piers are connected with the bridge deck structure through a quick detachable component, so that the shifting is convenient, the distance between the force bearing piers is preferably half of the longitudinal steel truss girder main body (namely the bridge deck structure is approximately equal to half of the bridge deck structure to be detached or replaced after being divided), the force bearing piers are connected with the longitudinal steel truss girder main body through the quick detachable component, the longitudinal steel truss girder main body can be adjusted in length according to construction requirements, the force bearing frame adjusts single-point support into linear support, 2/3 longitudinal length is covered on the longitudinal steel truss main body, the construction safety is improved, the transverse steel truss main bodies are installed on a pair of longitudinal transport vehicles, the transverse steel truss main bodies are matched with the transverse transport vehicles to move on the transverse steel truss, the positions of the transverse steel truss main bodies are adjusted, and the optimal hoisting position is selected;
thirdly, during construction, the bearing structures are spliced with the bearing frames, the longitudinal bridge steel truss girder structures and the transverse bridge steel truss girder structures, then the bearing structures are transported to a construction site through a transport vehicle, a pair of bearing structures are symmetrically arranged at a bridge head or a replaced bridge deck structure, the distance between the pair of bearing structures is smaller than the transverse bridge width of the bridge deck structure, when the bearing structures are arranged at the bridge head, one part of a longitudinal bridge steel truss main body is positioned above the bridge head, the other part of the longitudinal bridge steel truss main body is suspended, when the bearing structures are arranged at the replaced bridge deck structure, one part of the longitudinal bridge steel truss main body is positioned above the replaced bridge deck structure, the other part of the longitudinal bridge steel truss main body is positioned above the bridge deck structure to be removed and replaced, the position of the longitudinal bridge transport vehicle on the longitudinal bridge guide rail and the position of the transverse bridge transport vehicle on the transverse bridge guide rail are adjusted, so that the crane is positioned right above the bridge deck structure to be removed, then the, releasing stress, temporarily connecting a lifting appliance with the bridge deck structure, lifting and transferring the bridge deck structure through a crane, then replacing a new bridge deck structure, transferring and lowering the bridge deck structure through reverse operation, connecting the new bridge deck structure with the replaced bridge deck structure and a lifting rod, and then jacking and conveying the bridge deck crane to a next construction unit, repeating the steps till the dismantling and replacing of all partitioned bridge deck structures are completed, and then reinforcing the bridge deck structure;
fourthly, the main support is arranged to reinforce the connection of the force bearing pier and the longitudinal bridge steel truss girder main body to form a stable triangular structure; the arrangement of the first auxiliary support and the second auxiliary support increases the integrity of each bearing part, and improves the construction safety; the third auxiliary support is arranged to further increase the integrity of each bearing part and improve the construction safety; the arrangement position of the stiffening leg is reinforced by a bearing pier from the outer side; the longitudinal length of the longitudinal bridge to the steel truss girder main body is convenient for hoisting the connecting points from the bridge deck structure, and meanwhile, the construction safety of the longitudinal bridge to the steel truss girder main body is improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a transverse bridge direction according to a technical solution of the present invention;
fig. 2 is a schematic structural view of a longitudinal bridge direction according to another embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1-2, the utility model provides a system is demolishd and changes to super large span steel pipe concrete arch bridge deck structure, include:
the pair of bearing structures are symmetrically arranged at the bridge head or the replaced bridge deck structure 9 along the longitudinal bridge direction, each bearing structure comprises two bearing piers 1 which are arranged in a straight line, wherein the two sides of one bearing pier 1 close to the bridge deck structure 10 to be dismantled or replaced in the longitudinal bridge direction are detachably connected with bearing frames 2, and the single side of the other bearing pier 1 far away from the bridge deck structure 10 to be dismantled or replaced is oppositely provided with the bearing frames 2;
the pair of longitudinal steel truss girder structures comprises a longitudinal steel truss girder main body 3, longitudinal guide rails 11 and a longitudinal transport vehicle 4, wherein the bottom of the longitudinal steel truss girder main body 3 is detachably connected with the force bearing piers 1 and the force bearing frame 2, a connection point of one force bearing pier 1 is positioned on one side, far away from a bridge deck structure 10 to be dismantled or replaced, of the longitudinal steel truss girder main body 3, a connection point of the other force bearing pier 1 is positioned at the middle point of the longitudinal steel truss girder main body 3, the other side of the longitudinal steel truss girder main body 3 is positioned right above the bridge deck structure 10 to be dismantled or replaced, the longitudinal guide rails 11 are arranged at the top of the longitudinal steel truss girder main body 3, and the longitudinal transport vehicle 4 moves along the longitudinal guide rails 11;
the transverse bridge steel truss girder structure comprises a transverse bridge steel truss girder main body 5, transverse bridge guide rails 12 and a transverse bridge transport vehicle 6, wherein the bottom of the transverse bridge steel truss girder main body 5 is detachably connected with a pair of longitudinal bridge transport vehicles 4, the transverse bridge guide rails 12 are arranged at the top of the transverse bridge steel truss girder main body 5, and the transverse bridge transport vehicle 6 moves along the transverse bridge guide rails 12;
the hoisting structure comprises a crane 7 and a lifting appliance 8, wherein the crane 7 is placed on the transverse bridge transport vehicle 6, and the crane 7 is used for hanging a bridge deck structure 10 to be dismantled or replaced through the lifting appliance 8.
In the technical scheme, the utility model discloses based on bridge floor structure 9 that has changed, form the strong point through load structure, form to steel truss structure through indulging the bridge and indulge the bridge to the removal route, form horizontal bridge to the removal route to steel truss structure through horizontal bridge, treat bridge floor structure 10 of demolising or changing through lifting by crane the structure and lift by crane or transfer, realize aerial operation, do not occupy space under the bridge, influence normal navigation under the bridge, the on-the-spot installation is quick, convenient, can reuse.
The force bearing piers 1 are connected with the bridge deck structure by adopting a quick detachable component and are convenient to move, the distance between the force bearing piers 1 is preferably half of the distance between a longitudinal bridge and a steel truss girder main body 3 (namely the distance between the bridge deck structure and the bridge deck structure is approximately equal to half of the distance between a bridge deck structure 10 to be detached or replaced after being divided), the force bearing piers 1 are connected with the longitudinal bridge and the steel truss girder main body 3 by adopting the quick detachable component, the longitudinal bridge and the steel truss girder main body 3 can be subjected to length adjustment according to construction requirements, the force bearing frame 2 adjusts single-point support into linear support, 2/3 longitudinal bridge and steel truss main body is covered on the longitudinal bridge and the steel truss main body, construction safety is improved, a pair of longitudinal bridge and steel truss main bodies are installed on a pair of longitudinal bridge and transport vehicles 4, the transverse bridge and the steel truss main bodies move in a transverse bridge direction.
When in construction, the bearing structure is spliced with the bearing frame 2, the longitudinal bridge-to-steel truss structure and the transverse bridge-to-steel truss structure, then the bearing structures are transported to a construction site by a transport vehicle, a pair of bearing structures are symmetrically arranged at a bridge head or a replaced bridge deck structure 9, the distance between the pair of bearing structures is smaller than the transverse bridge-to-width of the bridge deck structure, when the bearing structures are arranged at the bridge head, one part of the longitudinal bridge-to-steel truss main body is positioned above the bridge head, the other part is suspended, when the bearing structures are arranged at the replaced bridge deck structure 9, one part of the longitudinal bridge-to-steel truss main body is positioned above the replaced bridge deck structure 9, the other part is positioned above the bridge deck structure to be removed and replaced, the position of the longitudinal bridge-to-transport vehicle 4 on the longitudinal bridge-to guide rail 11 and the position of the transverse bridge-to-transport vehicle 6 on the transverse bridge-to-guide rail 12 are adjusted, so that the crane 7 is positioned right above the, release stress, with hoist 8 and bridge floor structure temporary connection, carry out lifting by crane and the transfer of bridge floor structure through loop wheel machine 7, then more new bridge floor structure, reverse order operation carries out the transfer of bridge floor structure and transfers, connects new bridge floor structure and the bridge floor structure 9 that has changed, jib, then will the utility model discloses a bridge deck crane jacking, transport to next construction unit, repeat above-mentioned step, to accomplishing dismantling and changing of the bridge floor structure of all blocks, then carry out bridge floor structure's reinforcement.
In another technical scheme, the force-bearing frame 2 comprises a main support, and the main support is connected with the force-bearing pier 1 and the longitudinal steel truss girder main body 3. The main support is arranged to reinforce the connection of the bearing pier 1 and the longitudinal steel truss girder main body 3, so that a stable triangular structure is formed.
In another technical scheme, the carrier 2 further comprises a first auxiliary support and a second auxiliary support, the first auxiliary support is connected with the carrier pier 1 and the main support, and the second auxiliary support is connected with the longitudinal steel truss girder main body 3 and the main support. The arrangement of the first auxiliary support and the second auxiliary support increases the integrity of each bearing part, and improves the construction safety.
In another technical solution, the carrier 2 further includes a third auxiliary support, and the third auxiliary support is connected to the main support and the first auxiliary support, or the main support and the second auxiliary support, or the first auxiliary support and the second auxiliary support. The third auxiliary support further increases the integrity of each bearing part and improves the construction safety.
In another technical scheme, the bridge structure further comprises a plurality of pairs of stiffening legs 13, the stiffening legs 13 support the hard pier 1 and the replaced bridge deck structure 9 in an inclined mode, and the pair of stiffening legs 13 are located on the same transverse bridge section. The arrangement position of the stiffening supporting leg 13 is reinforced by the force bearing pier 1 from the outer side.
In another solution, the longitudinal length of the longitudinal steel truss girder 3 is slightly larger than the deck structure 10 to be removed or replaced. The longitudinal length of the longitudinal bridge to the steel truss girder main body 3 is set so as to be convenient for hoisting the connecting points from the bridge deck structure position, and meanwhile, the construction safety of the longitudinal bridge to the steel truss girder main body 3 is improved.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (6)
1. System is demolishd and change to super large span steel pipe concrete arch bridge deck structure, its characterized in that includes:
the bearing structures comprise two bearing piers which are arranged in a straight line, wherein the bearing frame is detachably connected to the two sides of the longitudinal bridge direction of one bearing pier close to the bridge deck structure to be dismantled or replaced, and the bearing frames are oppositely arranged on the single side of the other bearing pier far away from the bridge deck structure to be dismantled or replaced;
the pair of longitudinal steel truss girder structures comprises a longitudinal steel truss girder main body, longitudinal guide rails and a longitudinal transport vehicle, wherein the bottom of the longitudinal steel truss girder main body is detachably connected with the force bearing piers and the force bearing frame, a connection point of one force bearing pier is positioned on one side, away from the bridge deck structure to be dismantled or replaced, of the longitudinal steel truss girder main body, a connection point of the other force bearing pier is positioned at the middle point of the longitudinal steel truss girder main body, the other side of the longitudinal steel truss girder main body is positioned right above the bridge deck structure to be dismantled or replaced, the longitudinal guide rails are arranged at the top of the longitudinal steel truss girder main body, and the longitudinal transport vehicle moves along the longitudinal guide rails;
the transverse bridge steel truss girder structure comprises a transverse bridge steel truss girder main body, a transverse bridge guide rail and a transverse bridge transport vehicle, wherein the bottom of the transverse bridge steel truss girder main body is detachably connected with a pair of longitudinal bridge transport vehicles, the transverse bridge guide rail is arranged at the top of the transverse bridge steel truss girder main body, and the transverse bridge transport vehicle moves along the transverse bridge guide rail;
and the hoisting structure comprises a crane and a lifting appliance, wherein the crane is placed on the transverse bridge transport vehicle, and the crane suspends the bridge deck structure to be dismantled or replaced through the lifting appliance.
2. The system for removing and replacing a deck structure of an ultra-large span steel pipe concrete arch bridge according to claim 1, wherein the force-bearing frame comprises a main support, and the main support is connected with the force-bearing pier and the longitudinal bridge steel truss girder main body.
3. The system for removing and replacing a bridge deck structure of an ultra-large span steel pipe concrete arch bridge of claim 2, wherein the force-bearing frame further comprises a first auxiliary frame and a second auxiliary frame, the first auxiliary frame is connected with the force-bearing pier and the main frame, and the second auxiliary frame is connected with the longitudinal steel truss girder body and the main frame.
4. The system for removing and replacing a deck structure of an ultra-large span concrete-filled steel tube arch bridge according to claim 3, wherein the outrigger further comprises a third auxiliary support, and the third auxiliary support is connected to the main support and the first auxiliary support, or the main support and the second auxiliary support, or the first auxiliary support and the second auxiliary support.
5. The system for removing and replacing a deck structure of an ultra-large span steel pipe concrete arch bridge according to claim 1, further comprising a plurality of pairs of stiffening legs, wherein the stiffening legs obliquely support the hard pier and the replaced deck structure, and the pair of stiffening legs are positioned on the same transverse bridge section.
6. The system for removing and replacing a deck structure of an ultra-large span steel pipe concrete arch bridge according to claim 1, wherein the longitudinal length of the longitudinal steel truss girder body is slightly larger than the deck structure to be removed or replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021126618.XU CN212956170U (en) | 2020-06-17 | 2020-06-17 | System for dismantling and replacing bridge deck structure of ultra-large span steel pipe concrete arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021126618.XU CN212956170U (en) | 2020-06-17 | 2020-06-17 | System for dismantling and replacing bridge deck structure of ultra-large span steel pipe concrete arch bridge |
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| Publication Number | Publication Date |
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| CN212956170U true CN212956170U (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021126618.XU Active CN212956170U (en) | 2020-06-17 | 2020-06-17 | System for dismantling and replacing bridge deck structure of ultra-large span steel pipe concrete arch bridge |
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| CN (1) | CN212956170U (en) |
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- 2020-06-17 CN CN202021126618.XU patent/CN212956170U/en active Active
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