CN113699900A - Beam pier structure for bridge emergency repair and application thereof - Google Patents
Beam pier structure for bridge emergency repair and application thereof Download PDFInfo
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- CN113699900A CN113699900A CN202111064161.3A CN202111064161A CN113699900A CN 113699900 A CN113699900 A CN 113699900A CN 202111064161 A CN202111064161 A CN 202111064161A CN 113699900 A CN113699900 A CN 113699900A
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention provides a beam pier structure for rush repair of a bridge and application thereof, and belongs to the field of rush repair of bridges. This beam pier structure is salvageed the mound subassembly and is salvageed the roof beam subassembly including salvageing, wherein: the emergency repair pier assembly comprises a base and a pier body, wherein the base is connected with the bottom of the pier body so as to fix the base on the ground; the pier body adopts a telescopic sleeve structure; salvage the roof beam subassembly and salvage the top of mound subassembly and be connected, should salvage the roof beam subassembly and adopt extensible structure, the during operation salvages the roof beam subassembly and expands along following the bridge to the direction symmetry, then both ends are connected with the pier support of waiting to salvage the bridge to this completion bridge salvagees work. The invention can realize the integral transportation of the bridge emergency repair equipment, has strong maneuvering performance and realizes multipoint synchronous operation; meanwhile, the emergency repair pier assembly and the emergency repair beam assembly adopt a modularized design idea, so that the problems of multiple types of parts and complex field assembly of the conventional emergency repair equipment are effectively solved.
Description
Technical Field
The invention belongs to the field of emergency repair of bridges, and particularly relates to a beam pier structure for emergency repair of bridges and application thereof.
Background
After the bridge is damaged, the emergency repair is finished as soon as possible with the minimum workload and the shortest time so as to recover the traffic as soon as possible. At present, standard beam pier emergency repair equipment is mostly adopted for bridge emergency repair, a field manpower splicing and assembling method is mainly adopted, a small-sized hoisting machine is used as an auxiliary material, the problems of large quantity of rod pieces, complex splicing, low mechanization degree, large manpower consumption, large early preparation workload, long splicing and assembling time, low efficiency and the like mainly exist, and the railway transportation guarantee requirement under a new situation is difficult to meet.
In the prior art, the rapid erection mode for rush repair of highway bridges mainly comprises the following two modes: one is a mechanical bridge, the bridge and the erection transportation equipment form a whole, the degree of mechanization is high, the operation speed is high, but because the bridge is not provided with a pier body emergency repair unit, the bridge is only suitable for overcoming traffic guarantee of various ditches, rivers and craters or rapid emergency repair under the condition that only a beam part structure is damaged, and once a line which is simultaneously damaged by a beam pier is met, the line is difficult to guarantee; the other type is mechanical equipment bridge building, the beam pier is usually of an integrated structure, and the operation speed is high by using special mechanical building equipment, so that the bridge pier is more suitable for on-line building. However, the railway has the characteristics of high requirements on line conditions, large load capacity and the like, so that the integrated equipment which is used for the railway and has higher mechanization degree is not equipped at home and abroad at present.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a beam pier structure for bridge emergency repair and application thereof, and aims to solve the problems of long time and low efficiency of the conventional splicing work of bridge emergency repair.
To achieve the above objects, according to an aspect of the present invention, there is provided a beam pier structure for bridge emergency repair, including an emergency repair pier assembly and an emergency repair beam assembly, wherein:
the emergency repair pier assembly comprises a base and a pier body, wherein the base is connected with the bottom of the pier body so as to fix the emergency repair pier assembly on the ground; the pier body adopts a telescopic sleeve structure;
salvage the girder component with the top of salvageing the mound subassembly is connected, and this salvage the girder component and adopt extensible structure, the during operation salvage the girder component and expand along following the bridge to the direction symmetry, then both ends are connected with the pier support of treating the salvage bridge to this completion bridge salvagees work.
As further preferred, salvage mound subassembly still includes pylon and hawser, the pylon setting is at the top of pier shaft, and the top of this pylon is equipped with guide pulley for accomplish with the hawser cooperation salvage roof beam subassembly erect work, then shrink the entering the inside of pier shaft.
As a further preferred, the pier body is automatically locked after being lifted to the proper position.
As a further preferred, the rush-repair beam assembly comprises a left span beam and a right span beam, wherein the left span beam and the right span beam are symmetrically arranged along the central line of the tower pole and are respectively symmetrically arranged along the direction of the bridge direction under the driving of the mooring rope during the unfolding.
Preferably, the top surfaces of the left and right cross beams are provided with rails.
Preferably, the base is separately transported to the position below the bridge to be rush-repaired, or is connected with the pier body and transported to the position below the bridge to be rush-repaired; wherein under the condition that base and pier shaft are connected, when equipment is in the transport state, the base is connected through round pin axle semi-mounted with the bottom of pier shaft, works as the pier shaft erects to rotate and inserts another round pin axle after targetting in place, in order to accomplish the fixing of base and pier shaft.
As a further preference, the top of the tower is provided with a track to cooperate with the tracks of the left and right bridge surfaces to form a complete track after retraction.
Preferably, the left span beam and the right span beam are both composed of two beam sections, and the two beam sections are respectively driven by the first oil cylinder or the second oil cylinder to be unfolded along the bridge direction and are mutually matched with the cable to be unfolded in place.
According to another aspect of the invention, a transportation assembly for bridge emergency repair is provided, the transportation assembly is used for transporting the beam pier structure, the transportation assembly comprises a vehicle body, hydraulic supporting legs, a longitudinal moving slide way, a transverse moving slide way, a horizontal rotary table and a lifting oil cylinder, the longitudinal moving slide way, the transverse moving slide way, the horizontal rotary table and the lifting oil cylinder are arranged on the vehicle body, and the hydraulic supporting legs are arranged on two sides of the vehicle body; the longitudinal moving slideway, the transverse moving slideway and the horizontal turntable are sequentially connected from bottom to top; the bottom of the lifting oil cylinder is arranged on the horizontal rotary table, and the top of the lifting oil cylinder is connected with the pier body and used for pushing the beam pier structure to vertically rotate.
According to another aspect of the invention, the bridge emergency repair erection equipment integrated with the beam pier machine comprises the beam pier structure and the transportation assembly, wherein the beam pier structure is transported to the position below a bridge to be subjected to emergency repair during operation by the transportation assembly, the beam pier structure is driven to vertically rotate, and then the beam pier structure completes the bridge emergency repair operation through jacking and stretching.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
1. the invention adopts an integrated design concept, can realize the integral transportation of the bridge emergency repair equipment, has strong maneuvering performance, can quickly transport the beam pier structure to the position of the bridge to be subjected to emergency repair, realizes multipoint synchronous operation, is not limited by the damage quantity, and can ensure that multipoint damage and single-hole damage complete line emergency repair with similar efficiency; meanwhile, the emergency repair beam assembly and the emergency repair pier assembly are modularized and are integrated, the problems of multiple types of parts and complex field assembly of the conventional emergency repair equipment are effectively solved, the method has the advantages of less preliminary preparation work, simple construction steps and high bridging speed, and conditions are created for timely recovery after the railway line is damaged;
2. particularly, according to the concrete application scene of the emergency repair of the bridge, the connection mode of the base and the pier body, the tower pole and the structure of the emergency repair pier are optimized, the efficiency and the safety of the emergency repair of the bridge can be effectively improved, the emergency repair task of the bridge in different height ranges can be completed, flexible span change can be realized, the influence of the original line span is avoided, the direct pier erection at the position of the residual pier can be effectively avoided, the high connection and other treatments of the residual pier are not needed, and the early-stage workload is further reduced.
Drawings
Fig. 1 is a schematic overall structure diagram of a beam-pier integrated bridge rush-repair erection device provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a rush-repair pier assembly in a beam pier structure for rush repair of a bridge, which is provided by the embodiment of the invention;
fig. 3 is a schematic structural diagram of a rush-repair beam assembly in a beam pier structure for rush-repair of a bridge according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a transportation assembly for emergency repair of a bridge according to an embodiment of the present invention;
fig. 5a to 5l are schematic diagrams of a work flow of the beam-pier integrated bridge rush-repair erection equipment provided by the embodiment of the invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
1-transportation component, 1.1-hydraulic supporting leg, 1.2-lifting oil cylinder, 2-emergency repair pier component, 3-emergency repair beam component, 2.1-base, 2.2-pier body, 2.3-tower pole, 2.4-cable, 3.1-left span beam, 3.2-right span beam, 3.3-first oil cylinder and 3.4-second oil cylinder.
Detailed Description
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 invention and are not intended to limit the invention.
As shown in fig. 1 to 3, the invention provides a beam pier structure for rush repair of a bridge, which comprises a rush repair pier component 2 and a rush repair beam component 3, wherein:
the emergency repair pier component 2 comprises a base 2.1, a pier body 2.2, a tower pole 2.3 and a cable 2.4, wherein the base 2.1 is used for being connected with the bottom of the pier body 2.2 so as to fix the pier on the ground; the pier body 2.2 adopts a multi-stage telescopic sleeve structure, the height of the pier body 2.2 is adjusted by jacking the telescopic sleeve in the pier erecting process, and the pier body is automatically locked after being jacked in place; the tower pole 2.3 is arranged above the pier body 2.2, the top of the tower pole is provided with a guide pulley, the erection work of the emergency repair beam component 3 is completed by matching with the mooring rope 2.4, meanwhile, the tower pole 2.3 can vertically lift along the pier body 2.2 through a gear rack, the tower pole 2.3 is in an extension state in the transportation process and the erection process, the tower pole 2.3 falls into an inner cavity of the pier body 2.2 after the emergency repair beam component 3 is erected, and a top surface track of the tower pole 2.3 is connected with a top surface track of the emergency repair beam component 3 to form a complete track;
the rush-repair beam assembly 3 is connected with the top of the rush-repair pier assembly 2, the rush-repair beam assembly 3 adopts an extensible structure and comprises a left span beam 3.1 and a right span beam 3.2, the left span beam 3.1 and the right span beam 3.2 are symmetrically arranged along the central line of a tower pole 2.3, and are respectively and symmetrically arranged along the bridge direction under the driving of a cable 2.4 when being unfolded, and two ends of the rush-repair beam assembly are connected with bridge pier supports of a bridge to be rush-repaired; simultaneously, the top surfaces of the left span beam 3.1 and the right span beam 3.2 are provided with rails, so that the rush repair beam assembly 3 can be directly and quickly connected with the rails on the two sides after being unfolded, and then the rails are matched with the rails on the bridge to be rush repaired to form a complete rail.
Further, the base 2.1 can be directly fixed below the bridge to be rush-repaired in a prefabricated mode, is connected with the bottom of the pier body 2.2 after the beam pier structure is transported in place, then pushes the beam pier structure to vertically rotate, and inserts the pin shaft to fix after the beam pier structure is vertically rotated in place; meanwhile, the base 2.1 can be connected with the pier body 2.2 to be jointly transported to the lower part of the bridge to be rush-repaired, when the equipment is in a transportation state, the base 2.1 is in semi-hanging connection with the bottom of the pier body 2.2 through a pin shaft, and another pin shaft is inserted after the pier body 2.2 is vertically rotated in place, so that the base 2.1 and the pier body 2.2 are fixed.
Further, pier shaft 2.2 passes through hydraulic pressure electrical system, can realize quick lift and fold up to automatic locking is realized through single cylinder bolt structure after the telescopic tube jacking targets in place, can be automatic spacing, and the frame is torn open conveniently, and degree of automation is high, has greatly reduced the manual work volume. The height of the pier shaft 2.2 is 10 m-40 m, and the pier shaft is adjusted by sections with the modulus of 2 m.
Further, the unilateral span of the rush repair beam assembly 3 is 6-20 m, which is determined by the span of the existing bridge and can be selected according to the actual situation. The left span beam 3.1 and the right span beam 3.2 are both composed of two beam sections, and the two beam sections are respectively unfolded along the direction of the bridge under the driving of the first oil cylinder 3.3 or the second oil cylinder 3.4 and are matched with the cable 2.4 to be unfolded in place.
According to another aspect of the invention, as shown in fig. 4, a transportation assembly for bridge emergency repair is provided for transporting the beam pier structure, the transportation assembly 1 comprises a vehicle body, hydraulic supporting legs 1.1, and a longitudinal movement slideway, a transverse movement slideway, a horizontal turntable and a lifting oil cylinder 1.2 which are arranged on the vehicle body, wherein the hydraulic supporting legs 1.1 are arranged on two sides of the vehicle body; the longitudinal moving slideway, the transverse moving slideway and the horizontal turntable are sequentially connected from bottom to top; the bottom of the lifting oil cylinder 1.2 is arranged on the horizontal turntable, and the top of the lifting oil cylinder is connected with the pier body 2.2 and used for pushing the beam pier structure to vertically rotate.
According to another aspect of the invention, the bridge emergency repair erection equipment with the integrated beam pier machine comprises the transportation assembly of the beam pier structure, the beam pier structure is conveyed to the position below a bridge to be subjected to emergency repair by the transportation assembly 1 during operation, the vertical rotation of the beam pier structure is realized by being pushed by the lifting oil cylinder 1.2, then the pier body 2.2 is automatically locked after being lifted in place, and finally the emergency repair beam assembly is unfolded along the direction along the bridge direction under the driving of the cable 2.4, the first oil cylinder 3.3 and the second oil cylinder 3.4, so that the emergency repair work of the bridge is completed.
In practical application, the connection of the porous bridge is usually damaged or the multi-point damage is usually caused, if an on-line rush-repair mode is adopted, the hole-by-hole recovery is required along a line, the more the bridge span damage is, the slower the rush-repair time is, and the restriction of adverse factors such as curve radius, tunnel passing transportation and the like is easily caused. The invention adopts an offline first-aid repair mode, can synchronously operate at multiple points according to the field requirement, is not limited by the damage quantity, can still ensure that the efficiency close to the single-hole damage is realized to complete the rush-connection of the line, and is not influenced by the line condition. And because the line still has the residual pier usually after being damaged, if connect it highly in situ, the work load is huge, the invention can realize flexibly changing the span through setting up the beam section of different sizes, is not influenced by original line span, thus avoid the position of the residual pier to set up the pier directly effectively, compare with mechanized bridge in the prior art, do not need to connect any treatment such as high, have reduced the work load in earlier stage effectively, further raise and salvage the efficiency.
Furthermore, the integrated bridge rush-repair erection equipment of the beam pier machine further comprises an intelligent monitoring system which is used for monitoring, alarming and correcting the stress deformation of the whole process of equipment alignment, installation, bracket grabbing, operation and maintenance and the like, so that the safety of the equipment is effectively ensured.
The technical solution provided by the present invention is further explained below according to specific embodiments.
Taking a first-aid repair 32m beam as an example, after receiving a first-aid repair command, clearing and transporting the damaged bridge, leveling and reinforcing the existing pier top, installing a pier prefabricated support cushion block, leveling the underbridge site of the damaged beam at the midspan position, and prefabricating a foundation cushion cap and a pier bottom base; as shown in fig. 5a, the transportation assembly 1 transports the beam pier structure to the lower part of the bridge to be salvageed, the alignment between the bottom of the pier and the base is realized through the longitudinal movement slideway, the transverse movement slideway and the horizontal rotary table, the vertical rotation steel pin is inserted, then the hydraulic support leg 1.1 is opened, the integral vertical rotation of the beam pier structure is completed through the extension of the lifting oil cylinder 1.2, as shown in fig. 5b and 5c, the stopping steel pin at the bottom of the pier is inserted after the vertical rotation is in place, and the connection between the pier body and the lifting oil cylinder 1.2 is released; the pier body 2.2 is in a four-stage telescopic sleeve form, the length of each stage of sleeve is about 10m, the pier erecting process is carried out through jacking of an oil cylinder, the height of the pier body 2.2 can be adjusted within the range of 10m to 40m by sections with the modulus of 2m, the sleeves are jacked step by step from inside to outside during lifting, and each stage of sleeve is automatically locked through a single-cylinder bolt structure after being jacked in place, as shown in fig. 5d and 5 e; the top surface of the innermost four-stage sleeve of the pier body 2.2 is a pier top, bridge supports are symmetrically arranged on two sides above the pier top and are respectively connected with the left span beam 3.1 and the right span beam 3.2 through pin shafts, meanwhile, the left span beam 3.1 and the right span beam 3.2 are respectively divided into two beam sections, namely an inner beam section and an outer beam section, steel rails are directly arranged on the top surfaces of the beams, the lengths of the steel rails are respectively 7m and 9m, the two beam sections are connected through the pin shafts, synchronous symmetrical rotation at a certain angle is realized through jacking of the first oil cylinder 3.3 and the second oil cylinder 3.4, after the strokes of the first oil cylinder 3.3 and the second oil cylinder 3.4 reach the maximum positions, synchronous symmetrical unfolding of the left span beam 3.1 and the right span beam 3.2 is completed through adjusting the length matching of the mooring rope 2.4, and the pier is shown in fig. 5 f-5 h; after the rush-repair beam assembly 3 is unfolded in place, the rush-repair beam assembly is connected with a concrete pier support of a bridge to be rush-repaired, the tower pole 2.3 is retracted, and the line traffic can be realized after the track is finely adjusted, as shown in fig. 5 i-5 l, the line is selected to complete the line-replacement rush-repair. The hydraulic jacking method is used for erecting a 40m emergency repair pier, the time is about 40 hours, and the method provided by the invention only needs 15 minutes, so that the erecting efficiency is greatly improved, and conditions are created for timely recovery after the line is damaged.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a beam pier structure for bridge is salvageed, its characterized in that, this beam pier structure is salvageed mound subassembly (2) and is salvageed roof beam subassembly (3) including salvageing, wherein:
the emergency repair pier assembly (2) comprises a base (2.1) and a pier body (2.2), wherein the base (2.1) is used for being connected with the bottom of the pier body (2.2) so as to fix the pier assembly on the ground; the pier body (2.2) adopts a telescopic sleeve structure;
salvage roof beam subassembly (3) with the top of salvageing mound subassembly (2) is connected, and this salvage roof beam subassembly (3) adopt and can extend the structure, the during operation salvage roof beam subassembly (3) along following the bridge to the direction symmetry expand, then both ends are connected with the pier support of waiting to salvage the bridge to this completion bridge is salvageed work.
2. The beam pier structure for bridge emergency repair according to claim 1, wherein the emergency repair pier assembly further comprises a tower pole (2.3) and a cable (2.4), the tower pole (2.3) is arranged at the top of the pier body (2.2), and a guide pulley is arranged at the top of the tower pole (2.3) and used for being matched with the cable (2.4) to complete the erection work of the emergency repair beam assembly (3) and then being contracted into the pier body (2.2).
3. The beam-pier structure for bridge emergency repair according to claim 1, characterized in that the pier body (2.2) is automatically locked after it has been lifted in place.
4. The beam pier structure for bridge emergency repair according to claim 1, wherein the emergency repair beam assembly (3) comprises a left span beam (3.1) and a right span beam (3.2), the left span beam (3.1) and the right span beam (3.2) are symmetrically arranged along the center line of the tower pole (2.3), and are respectively and symmetrically arranged along the bridge direction under the drive of the mooring rope (2.4) during expansion.
5. Beam pier structure for bridge rush-repair according to claim 4, characterized in that the top surfaces of the left (3.1) and right (3.2) span beams are provided with rails.
6. The beam pier structure for bridge emergency repair according to claim 1, wherein the base (2.1) is transported to the lower part of the bridge to be emergency repaired separately or is connected with the pier body (2.2) and transported to the lower part of the bridge to be emergency repaired together; wherein under the condition that base (2.1) and pier shaft (2.2) are connected, when equipment was in the transport state, base (2.1) and pier shaft (2.2) bottom were through the half-hanging connection of round pin axle, work as pier shaft (2.2) erects to rotate and inserts another round pin axle after target in place, in order to accomplish base (2.1) and pier shaft (2.2) are fixed.
7. Beam pier structure for bridge rush-repair according to claim 2, characterized in that the top of the tower (2.3) is provided with rails to cooperate with the rails of the surfaces of the left (3.1) and right (3.2) bridge girders after contraction to form a complete rail.
8. The beam pier structure for bridge emergency repair according to claim 4, characterized in that the left span beam (3.1) and the right span beam (3.2) are both composed of two beam sections, and the two beam sections are respectively driven by the first oil cylinder (3.3) or the second oil cylinder (3.4) to be unfolded along the bridge direction and are mutually matched with the cable (2.4) to be unfolded in place.
9. A transportation assembly for bridge emergency repair is characterized in that the transportation assembly is used for transporting the beam pier structure as claimed in any one of claims 1 to 8, the transportation assembly (1) comprises a vehicle body, hydraulic supporting legs (1.1), and a longitudinal movement slideway, a transverse movement slideway, a horizontal rotary table and a lifting oil cylinder (1.2) which are arranged on the vehicle body, wherein the hydraulic supporting legs are arranged on two sides of the vehicle body; the longitudinal moving slideway, the transverse moving slideway and the horizontal turntable are sequentially connected from bottom to top; the bottom of the lifting oil cylinder is arranged on the horizontal rotary table, and the top of the lifting oil cylinder is connected with the pier body (2.2) and used for pushing the beam pier structure to vertically rotate.
10. The utility model provides a girder pier machine integration bridge is salvageed and is erected equipment which characterized in that, this erection equipment include according to any one of claim 1 ~ 8 the girder pier structure with according to claim 9 the transportation subassembly, during operation the girder pier structure quilt transportation subassembly (1) transport to the below of waiting to salvage the bridge to realize the perpendicular commentaries on classics of this girder pier structure through promoting, then the girder pier structure is through the jacking with extend the completion bridge and salvage work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111064161.3A CN113699900B (en) | 2021-09-10 | 2021-09-10 | Beam pier structure for bridge emergency repair and application thereof |
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| CN202111064161.3A CN113699900B (en) | 2021-09-10 | 2021-09-10 | Beam pier structure for bridge emergency repair and application thereof |
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| Publication number | Publication date |
|---|---|
| CN113699900B (en) | 2023-01-03 |
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