CN215561935U - Large-span bridge gantry crane - Google Patents
Large-span bridge gantry crane Download PDFInfo
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- CN215561935U CN215561935U CN202022871241.7U CN202022871241U CN215561935U CN 215561935 U CN215561935 U CN 215561935U CN 202022871241 U CN202022871241 U CN 202022871241U CN 215561935 U CN215561935 U CN 215561935U
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Abstract
The utility model relates to the technical field of road and bridge construction, in particular to a large-span bridge erecting gantry crane, which comprises temporary track bridges arranged on two sides of an existing river-crossing bridge, sliding tracks arranged on the temporary track bridges, a gantry crane gantry arranged above the existing river-crossing bridge, supporting legs connected below the gantry crane gantry, and sliding groove seats arranged at the lower ends of the supporting legs and corresponding to the sliding tracks. According to the large-span bridge-erecting gantry crane, the gantry crane equipment is arranged above the existing cross-river bridge from the construction angle skillfully, the hoisting operation is easily realized, accurate hoisting equipment is provided for the widening, dismantling or maintenance construction of the existing cross-river bridge, and the wading construction precision of the equipment is ensured.
Description
Technical Field
The utility model relates to a road and bridge construction technology, in particular to a large-span bridge erecting gantry crane.
Background
The construction of the large-span river-crossing bridge still has a plurality of problems which need to be overcome for the modern road and bridge construction technology, and the bridge deck widening or maintenance construction is carried out on the existing river-crossing bridge, so that a plurality of challenges are faced, but modern cities are mostly built when rivers face rivers, and the situations of maintenance, overhaul or removal of the existing river-crossing bridge become more and more, so that the technical problem which has to be solved in the technical field of modern road and bridge construction is achieved.
Specifically, hoisting operation cannot be directly performed on two banks of the river by using equipment such as a crane and the like, which is a key to cause difficulty in updating or maintaining a bridge across the river; in addition, although the problem of equipment arrangement can be solved to a certain extent by building temporary support piers and other construction modes in the river channel, how to ensure the operation precision of the equipment becomes an important factor restricting the construction precision of the river-crossing bridge in a wading state, and potential safety hazards are brought to the future stable operation of the river-crossing bridge.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: aiming at solving the technical problem of how to keep the equipment operation precision in the wading state after the equipment layout problem is solved by using the conventional hoisting technology when the bridge floor of the existing large-span river-crossing bridge is widened or the construction engineering is maintained, the large-span bridge gantry crane is skillfully designed from the construction angle, the gantry crane equipment is configured above the existing river-crossing bridge, the hoisting operation is easily realized, accurate hoisting equipment is provided for the widening, dismantling or maintenance construction of the existing river-crossing bridge, and the wading construction precision of the equipment is ensured.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a large-span bridge portal crane, is including setting up at the interim track bridge of existing river bridge both sides of striding the interim track bridge is equipped with the slip track, still including setting up the portal crane portal frame in existing river bridge top of striding, even there is the landing leg in the below of portal crane portal frame, the landing leg lower extreme corresponds with the slip groove seat that is equipped with the slip track.
The large-span bridge-erecting gantry crane is ingeniously started from a construction angle, temporary track bridges are arranged on two sides of an existing river-spanning bridge, a track is arranged on the track bridge, a gantry crane portal frame stretching over the existing river-spanning bridge is configured, supporting legs of the gantry crane portal frame correspond to the track and are provided with sliding groove seats, gantry crane equipment is configured above the existing river-spanning bridge, hoisting operation is easily achieved, accurate hoisting equipment is provided for widening, dismantling or maintaining construction of the existing river-spanning bridge, the problems of steel beam hoisting and erecting of the river-spanning bridge are solved, interference on existing traffic passage can be reduced through shunting construction, the operation precision of the gantry crane can be kept through positioning of the temporary track bridges, and the water-wading construction precision of the equipment is further guaranteed.
As a preferred scheme of the utility model, the gantry crane portal frame comprises a main beam, a traveling mechanism and a lifting trolley are arranged on the main beam, and a lightning arrester is also arranged on the main beam.
As a preferable scheme of the utility model, the main beam is formed by splicing a plurality of sections of beam sections. The main beam is divided into a multi-section beam segment structure, so that the split type hoisting and installation are facilitated.
As a preferable scheme of the utility model, two or more gantry cranes are arranged on the temporary track bridge. Set up two or two portal crane portal more than on interim track bridge, be convenient for construct from river course both sides respectively, improve the efficiency of construction.
As a preferable scheme of the present invention, the temporary rail bridge includes a steel box girder and a plurality of pier supports, the steel box girder is supported by the plurality of pier supports, the sliding rail is disposed on the steel box girder, a foundation pile is connected below the pier supports, and a lower end of the foundation pile is disposed in the underwater concrete foundation.
According to the preferable scheme, the pier support comprises a plurality of steel pipe foundation piles, a flow blocking part is arranged in front of each pier support, the flow blocking part comprises drainage vertical piles which are arranged approximately parallel to the steel pipe foundation piles, a flow guide support is connected between each drainage vertical pile and the steel pipe foundation pile, each flow guide support comprises a multi-component flow connecting frame, each flow distribution connecting frame at least comprises two vertical pile connecting columns, one end of each vertical pile connecting column is connected with the corresponding drainage vertical pile, and the other end of each vertical pile connecting column is connected with the corresponding adjacent two steel pipe foundation piles respectively to form a V-shaped flow guide structure.
Through setting up in pier support the place ahead and keeping off a class part, set up drainage vertical pile in steel pipe foundation pile the place ahead to set up the water conservancy diversion support between drainage vertical pile and steel pipe foundation pile, and utilize the reposition of redundant personnel link to form the V-arrangement structure, realize shunting rivers after setting up with the rivers direction correspondence and keeping off class part, reduce rivers and wash away the directness of steel pipe foundation pile, guarantee pier support's stability, guarantee portal crane slip precision and improve and stride river bridge construction precision.
As a preferred scheme of the utility model, each pier support comprises four steel pipe foundation piles, and is provided with a foundation pile connecting column for connecting the four steel pipe foundation piles, and the vertical pile connecting column and the foundation pile connecting column are correspondingly arranged so as to be close to the connecting position of the steel pipe foundation pile. The foundation pile connecting column and the vertical pile connecting column are respectively close to the connecting position of the steel pipe foundation pile, so that a triangular stable structure is favorably formed between the drainage vertical pile and the steel pipe foundation pile, and the stability of a flow blocking structure is favorably maintained.
As a preferred scheme of the utility model, the guide flushing plate is arranged on the vertical pile connecting column and is connected with a plurality of vertical pile connecting columns to form a V-shaped structure. The diversion scouring plates attached to the vertical pile connecting columns form a V-shaped structure and correspond to the water flow direction, water flow can be shunted, scouring of water flow to the pier supports is reduced directly, the flow blocking effect is achieved, and adaptability of the gantry crane to wading construction is improved.
In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:
1. the large-span bridge gantry crane ingeniously starts from a construction angle, the gantry crane equipment is configured above the existing river-crossing bridge, the hoisting operation is easily realized, accurate hoisting equipment is provided for the widening, dismantling or maintenance construction of the existing river-crossing bridge, and the wading construction precision of the equipment is ensured;
2. the main beam is divided into a multi-section beam segment structure, so that the split type hoisting and installation are convenient;
3. the flow blocking part is arranged in front of the pier support, the drainage vertical pile is arranged in front of the steel pipe foundation pile, the flow guide support is arranged between the drainage vertical pile and the steel pipe foundation pile, the flow distribution connecting frame is utilized to form a V-shaped structure, and the flow blocking part is arranged corresponding to the water flow direction to realize water flow distribution, so that direct washing of the water flow to the steel pipe foundation pile is reduced, the stability of the pier support is ensured, the sliding precision of a gantry crane is ensured, and the construction precision of a river-crossing bridge is improved;
4. the diversion scouring plates attached to the vertical pile connecting columns form a V-shaped structure and correspond to the water flow direction, water flow can be shunted, scouring of water flow to the pier supports is reduced directly, the flow blocking effect is achieved, and adaptability of the gantry crane to wading construction is improved.
Drawings
Fig. 1 is a schematic structural diagram of a large-span bridging gantry crane of the utility model.
Fig. 2 is a combined schematic diagram of a gantry crane gantry and a support leg in the embodiment.
FIG. 3 is a schematic diagram of a temporary trestle bridge pier support in the embodiment.
Fig. 4 is a schematic perspective view of a temporary trestle pier support in the embodiment.
FIG. 5 is a schematic view of a flow blocking component of a temporary trestle bridge pier bracket with a flow guide flushing plate in the embodiment.
The labels in the figure are: 1-gantry crane portal, 101-main beam, 102-walking mechanism, 103-lightning arrester, 104-lifting trolley, 2-support leg, 201-support leg frame, 202-sliding groove seat, 203-stair, 3-river-crossing bridge body, 4-temporary track bridge, 5-pier support, 501-steel pipe foundation pile, 502-foundation pile connecting column, 503-pier support top beam, 504-drainage vertical pile, 505-vertical pile connecting column, 6-concrete base layer and 7-diversion flushing plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
As shown in fig. 1 to 5, the large-span bridge crane of this embodiment includes temporary track bridges 4 disposed on two sides of an existing bridge body 3, the temporary track bridges 4 are provided with sliding tracks, and further includes a gantry crane gantry 1 disposed above the existing bridge body 3, a support leg 2 is connected below the gantry crane gantry 1, and a sliding groove seat is disposed at the lower end of the support leg 2 and corresponds to the sliding tracks.
The large-span bridge-erecting gantry crane of the embodiment ingeniously starts from a construction angle, temporary track bridges are arranged on two sides of an existing river-spanning bridge, tracks are arranged on the track bridges, gantry crane door frames stretching over the existing river-spanning bridge are configured, supporting legs of the gantry crane door frames correspond to the tracks and are provided with sliding groove seats, gantry crane equipment is configured above the existing river-spanning bridge, hoisting operation is easily achieved, accurate hoisting equipment is provided for widening, dismantling or maintaining construction of the existing river-spanning bridge, the problems of steel beam hoisting and erection of the river-spanning bridge are solved, interference on existing traffic is reduced through shunting construction, the operation precision of the gantry crane can be kept through positioning of the temporary track bridges, and the wading construction precision of the equipment is further guaranteed.
Example 2
As shown in fig. 1 to 5, according to the long-span bridge gantry crane described in embodiment 1, the gantry crane gantry 1 of this embodiment includes a main beam 101, a traveling mechanism 102 and a lifting trolley 104 are disposed on the main beam 101, and a lightning arrester 103 is further disposed on the main beam 101.
In this embodiment, the main beam 101 is formed by splicing a plurality of beam segments. The main beam is divided into a multi-section beam segment structure, so that the split type hoisting and installation are facilitated.
As shown in fig. 2, the leg 2 includes leg frames 201, a chute seat 202 matching with the sliding track is provided at the lowest end of the leg frame 201, and a staircase 203 is further provided on one of the leg frames 201.
Further, in the present embodiment, two gantry cranes 1 are disposed on the temporary track bridge 4. Set up two portal crane portal on interim track bridge, be convenient for construct from river course both sides respectively, improve the efficiency of construction.
Example 3
As shown in fig. 1 to 5, according to the long-span bridge gantry crane according to embodiment 1 or embodiment 2, the temporary track bridge 4 of this embodiment includes a steel box girder and a plurality of pier supports 5, the steel box girder is supported by the pier supports 5, the sliding track is disposed on the steel box girder, a foundation pile is connected below the pier supports 5, and a lower end of the foundation pile is disposed in an underwater concrete base layer 6.
In this embodiment, pier support 5 includes four steel pipe foundation piles 501, every 5 the place ahead of pier support all is equipped with the fender and flows the part, keep off and flow the part and include the drainage vertical pile 504 of arranging with steel pipe foundation pile 501 roughly parallel, even there is the water conservancy diversion support between drainage vertical pile 504 and the steel pipe foundation pile 501, the water conservancy diversion support includes the polycomponent flow link, every group the reposition of redundant personnel link includes two vertical pile spliced poles 505 at least, and two vertical pile spliced poles 505 one end link to each other with drainage vertical pile 504, other tip links to each other with two adjacent steel pipe foundation piles 501 respectively, forms V-arrangement water conservancy diversion structure.
Through setting up in pier support the place ahead and keeping off a class part, set up drainage vertical pile in steel pipe foundation pile the place ahead to set up the water conservancy diversion support between drainage vertical pile and steel pipe foundation pile, and utilize the reposition of redundant personnel link to form the V-arrangement structure, realize shunting rivers after setting up with the rivers direction correspondence and keeping off class part, reduce rivers and wash away the directness of steel pipe foundation pile, guarantee pier support's stability, guarantee portal crane slip precision and improve and stride river bridge construction precision.
Further, the present embodiment is provided with a foundation pile connection column 502 for connecting four steel pipe foundation piles 501, and the vertical pile connection column 505 is arranged corresponding to the foundation pile connection column 502 so as to be close to the connection position of the steel pipe foundation piles 501. The foundation pile connecting column and the vertical pile connecting column are respectively close to the connecting position of the steel pipe foundation pile, so that a triangular stable structure is favorably formed between the drainage vertical pile and the steel pipe foundation pile, and the stability of a flow blocking structure is favorably maintained.
Furthermore, as shown in fig. 5, a guiding and flushing plate 7 is disposed on the vertical pile connecting column 504, and the guiding and flushing plate 7 is connected to a plurality of vertical pile connecting columns 505 to form a V-shaped structure. The diversion scouring plates attached to the vertical pile connecting columns form a V-shaped structure and correspond to the water flow direction, water flow can be shunted, scouring of water flow to the pier supports is reduced directly, the flow blocking effect is achieved, and adaptability of the gantry crane to wading construction is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The large-span bridge erecting gantry crane is characterized by comprising temporary track bridges arranged on two sides of an existing river-crossing bridge, sliding tracks are arranged on the temporary track bridges, a gantry crane portal frame arranged above the existing river-crossing bridge is further arranged, supporting legs are connected below the gantry crane portal frame, the lower ends of the supporting legs correspond to the sliding tracks and are provided with sliding groove seats, a stair is further arranged on one supporting leg frame, and a main beam is formed by splicing a plurality of beam sections.
2. The large-span bridging gantry crane of claim 1, wherein the gantry crane gantry comprises a main beam, a traveling mechanism and a lifting trolley are arranged on the main beam, and a lightning arrester is further arranged on the main beam.
3. The long-span bridge erecting gantry crane of claim 2, wherein two or more gantry crane gantries are provided on the temporary rail bridge.
4. The large-span bridge erecting gantry crane according to any one of claims 1 to 3, wherein the temporary rail bridge comprises a steel box girder supported by a plurality of pier supports, and a plurality of pier supports, the sliding rail is provided on the steel box girder, a foundation pile is connected below the pier supports, and a lower end of the foundation pile is provided in the underwater concrete foundation.
5. The large-span bridge erecting gantry crane according to claim 4, wherein the pier supports comprise a plurality of steel pipe foundation piles, a flow blocking component is arranged in front of each pier support, the flow blocking component comprises drainage vertical piles arranged approximately parallel to the steel pipe foundation piles, a flow guide support is connected between each drainage vertical pile and the steel pipe foundation pile, the flow guide support comprises a multi-component flow connecting frame, each group of flow guide connecting frame at least comprises two vertical pile connecting columns, one end of each vertical pile connecting column is connected with the corresponding drainage vertical pile, and the other end of each vertical pile connecting column is respectively connected with the two adjacent steel pipe foundation piles to form a V-shaped flow guide structure.
6. The long-span bridge erecting gantry crane according to claim 5, wherein each of the pier supports comprises four steel pipe foundation piles, and is provided with a foundation pile connection column connecting the four steel pipe foundation piles, and the vertical pile connection column is arranged corresponding to the foundation pile connection column so as to be close to the connection position of the steel pipe foundation pile.
7. The large-span bridge erecting gantry crane according to claim 6, wherein a plurality of guiding and flushing plates are arranged on the vertical pile connecting columns, and the guiding and flushing plates are connected with the plurality of vertical pile connecting columns to form a V-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022871241.7U CN215561935U (en) | 2020-12-02 | 2020-12-02 | Large-span bridge gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022871241.7U CN215561935U (en) | 2020-12-02 | 2020-12-02 | Large-span bridge gantry crane |
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| Publication Number | Publication Date |
|---|---|
| CN215561935U true CN215561935U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022871241.7U Active CN215561935U (en) | 2020-12-02 | 2020-12-02 | Large-span bridge gantry crane |
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|---|---|
| CN (1) | CN215561935U (en) |
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2020
- 2020-12-02 CN CN202022871241.7U patent/CN215561935U/en active Active
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