CN113622323B - Assembly type beam slab bridge reinforcing structure and reinforcing method thereof - Google Patents
Assembly type beam slab bridge reinforcing structure and reinforcing method thereof Download PDFInfo
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- CN113622323B CN113622323B CN202110999762.7A CN202110999762A CN113622323B CN 113622323 B CN113622323 B CN 113622323B CN 202110999762 A CN202110999762 A CN 202110999762A CN 113622323 B CN113622323 B CN 113622323B
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of 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
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/048—Bearings being adjustable once installed; Bearings used in incremental launching
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The utility model relates to a field of beam slab bridge, a assembled beam slab bridge reinforced structure and reinforcing method thereof is related to, an assembled beam slab bridge reinforced structure, it includes the pier body, beam slab bridge body and shock insulation support, the shock insulation support is including installing the lower mounting panel on the pier body, install the last mounting panel on beam slab bridge body, install adapting unit on the lower mounting panel, install the shock attenuation part on the last mounting panel, the shock attenuation part is including installing the shock attenuation section of thick bamboo on last mounting panel, install the shock attenuation pole on adapting unit, fixedly connected with damping spring on the inner wall of shock attenuation section of thick bamboo, damping spring and shock attenuation pole fixed connection. A method for reinforcing an assembled beam slab bridge comprises the following steps: pouring a pier body on the ground; a shock insulation support is arranged at the top of the pier body; hoisting the prefabricated beam slab bridge body to the position above the shock insulation support; and starting the driving part to adjust the height of the beam slab bridge body. The application improves the problem of poor shock absorption effect of the shock insulation support.
Description
Technical Field
The application relates to the field of beam slab bridges, in particular to an assembly type beam slab bridge reinforcing structure and a reinforcing method thereof.
Background
At present, the bridge assembly type superstructure is a structural form frequently adopted by the superstructure of a highway bridge, and the structural form and the construction process have the characteristics of saving construction equipment, improving construction conditions, accelerating construction progress, facilitating industrial production, reducing construction cost and the like.
In the correlation technique, when the beam slab crane span structure was established on the pier, can install the isolation bearing between beam slab bridge and pier, the isolation bearing includes connecting plate and upper junction plate down usually, a plurality of steel sheets and if the rubber pad are installed to the up end of lower connecting plate, a plurality of steel sheets and a plurality of rubber pad stack gradually on the connecting plate down from bottom to top, the steel sheet upper cover that is located the superiors is equipped with the upper junction plate, install the rubber protection ring between upper junction plate and the lower connecting plate, the rubber protection ring cup joints on a plurality of steel sheets and a plurality of rubber pad, the intrados of rubber protection ring is connected with the cambered surface of a plurality of steel sheets and a plurality of rubber pad.
With respect to the related art in the above, the inventors consider that: the shock absorption effect of the shock absorption support is poor due to the fact that the shock absorption support only absorbs shock of the beam slab bridge through superposition of the rubber pads and the steel plates.
Disclosure of Invention
In order to solve the problem that the shock absorption effect of a shock insulation support is poor, the application provides an assembly type beam-slab bridge reinforcing structure and a reinforcing method thereof.
First aspect, the application provides an assembled beam slab bridge reinforced structure adopts following technical scheme:
an assembled beam-slab bridge reinforced structure comprises a pier body, a beam-slab bridge body erected on the pier body and a shock insulation support arranged between the pier body and the beam-slab bridge body, wherein the shock insulation support comprises a lower mounting plate arranged on the pier body and an upper mounting plate arranged on the beam-slab bridge body, the top of the lower mounting plate is fixedly connected with a lower mounting pipe, the bottom of the upper mounting plate is fixedly connected with an upper mounting pipe, the upper mounting pipe is slidably arranged in the lower mounting pipe, and a steel plate and a rubber pad are sequentially stacked in the lower mounting pipe and the upper mounting pipe; install two adapting unit down on the mounting panel, go up and install two shock attenuation parts of being connected with adapting unit respectively on the mounting panel, two shock attenuation parts are located the both sides of installation pipe respectively, shock attenuation part includes fixed connection at the damper cylinder of last mounting panel bottom, installs the shock attenuation pole on adapting unit, the shock attenuation pole slides and wears to establish in the damper cylinder, fixedly connected with damping spring on the inner wall of damper cylinder, damping spring and shock attenuation pole fixed connection.
Through adopting above-mentioned technical scheme, at the in-process that the beam slab bridge body rocked, the mounting panel rocked on the beam slab bridge body drives, goes up the mounting panel and drives the damper cylinder and rock, and the damper cylinder applys external force to damping spring, because damping spring self has elasticity, can offset rocking of some damper cylinders to make damping spring offset rocking of some beam slab bridge bodies, improved the relatively poor problem of isolation bearing shock attenuation effect.
Preferably, the shock-absorbing rod is sleeved with a shock-absorbing plate fixedly connected with the shock-absorbing rod, the side wall of the shock-absorbing plate is attached to the inner wall of the shock-absorbing cylinder, and the shock-absorbing plate is provided with shock-absorbing holes.
Through adopting above-mentioned technical scheme, at the in-process that shock attenuation section of thick bamboo rocked, the shock attenuation board removes with shock attenuation section of thick bamboo relatively, because there is air resistance in the shock attenuation section of thick bamboo, the air only circulates through the shock attenuation hole, can offset rocking of some shock attenuation section of thick bamboo, further improvement the relatively poor problem of isolation bearing shock attenuation effect.
Preferably, integrated into one piece has the installation cavity in the lower mounting panel, adapting unit is including rotating the screw thread section of thick bamboo of installation on the mounting panel terminal surface down, set up the screw thread on the lateral wall of shock-absorbing rod, the shock-absorbing rod screw thread is worn to establish in the screw thread section of thick bamboo, the screw thread section of thick bamboo is worn to establish in the installation cavity, install in the installation cavity and be used for driving two screw thread section of thick bamboopivoted driver part, offer the hole of placing that is used for placing steel sheet and rubber pad on the lateral wall of going up the installation pipe.
Through adopting above-mentioned technical scheme, start the driver part, the driver part drives a screw thread section of thick bamboo and rotates, a screw thread section of thick bamboo drives shock-absorbing rod vertical migration, the shock-absorbing rod drives shock-absorbing spring vertical migration, shock-absorbing spring drives shock-absorbing cylinder vertical migration, the shock-absorbing cylinder drives mounting panel vertical migration, it drives roof beam slab bridge body vertical migration to go up the mounting panel, can adjust the height of roof beam slab bridge body, the time that the staff changes the isolation bearing of co-altitude has been saved, then put into the last mounting tube with steel sheet and rubber pad from placing the hole, the completion is to the regulation of isolation bearing height.
Preferably, the drive assembly installs the actuating lever on the installation cavity inner wall including rotating, the outside of mounting panel is worn to establish down by the actuating lever, the cover is equipped with two first bevel gears with actuating lever fixed connection on the actuating lever, two all the cover is equipped with the second bevel gear with screw thread section of thick bamboo fixed connection on the screw thread section of thick bamboo, two second bevel gear meshes with first bevel gear respectively.
Through adopting above-mentioned technical scheme, rotate the actuating lever, the actuating lever drives two first bevel gear and rotates, and two first bevel gear drive second bevel gear respectively and rotate, and two second bevel gear drive a screw section of thick bamboo respectively and rotate to realize the regulation of beam slab bridge body height, the staff of being convenient for operates.
Preferably, the side wall of the lower mounting pipe is provided with a taking hole for taking the steel plate and the rubber pad.
Through adopting above-mentioned technical scheme, can take out steel sheet and rubber pad after long-time use from the department of taking, then put into new steel sheet and rubber pad from placing the hole department, can change steel sheet and rubber pad.
Preferably, a connecting hole is formed in the side wall, away from the taking hole, of the lower mounting pipe, and a connecting rod penetrates through the connecting hole in a sliding mode.
Through adopting above-mentioned technical scheme, remove the connecting rod, the connecting rod can drive steel sheet and rubber pad and remove, is convenient for take out steel sheet and rubber pad from the hole of taking.
Preferably, the connecting rod is sleeved with a limiting plate fixedly connected with the connecting rod, and the limiting plate is positioned in the lower mounting pipe.
Through adopting above-mentioned technical scheme, the limiting plate has restricted the movement track of connecting rod, has reduced the connecting rod and has broken away from the emergence of the condition in the installation pipe down.
Preferably, a plurality of buffer springs are fixedly connected to the inner bottom surface of the lower mounting pipe, and the plurality of buffer springs are fixedly connected to the end surface of the upper mounting pipe.
Through adopting above-mentioned technical scheme, at the in-process that the last mounting panel rocked, go up the mounting panel and drive the installation pipe and rock, go up the installation pipe and exert external force to buffer spring, because buffer spring self has elasticity, can offset partly rocking of going up the installation pipe to make buffer spring offset partly rocking of beam slab bridge body, further improved the relatively poor problem of shock insulation support shock attenuation effect.
In a second aspect, the following technical solution is adopted in the method for reinforcing an assembled girder slab bridge provided by the present application.
A method for reinforcing an assembled beam slab bridge comprises the following steps:
pouring a pier body on the ground; a shock insulation support is arranged at the top of the pier body; hoisting the prefabricated beam slab bridge body to the upper part of the pier body by using a hoisting device, and placing the beam slab bridge body above the shock insulation support; fixing the vibration isolation support with the beam slab bridge body; and starting the driving part to adjust the height of the beam slab bridge body.
Through adopting above-mentioned technical scheme, can finely carry out the shock attenuation to the beam slab bridge body to can adjust the height of beam slab bridge body.
In summary, the present application includes at least one of the following beneficial technical effects:
by arranging the damping spring, the damping spring has elasticity and can offset the shaking of a part of damping cylinder, so that the damping spring offsets the shaking of a part of beam slab bridge body, and the problem of poor damping effect of the shock insulation support is solved;
according to the shock absorption support, the shock absorption plates and the shock absorption holes are arranged, the shock absorption plates move relative to the shock absorption cylinder in the shaking process of the shock absorption cylinder, and due to the fact that air resistance exists in the shock absorption cylinder, air only circulates through the shock absorption holes, so that the shaking of a part of shock absorption cylinder can be counteracted, and the problem that the shock absorption effect of the shock absorption support is poor is further solved;
this application is through setting up buffer spring, and buffer spring can offset rocking of installing the pipe on the part to make buffer spring offset rocking of some beam slab bridge bodies, further improvement the relatively poor problem of isolation bearing shock attenuation effect.
Drawings
Fig. 1 is an overall structural schematic diagram of a fabricated girder bridge reinforcement structure and a reinforcement method thereof according to an embodiment of the present application.
Fig. 2 is an overall structural schematic diagram of the fabricated girder bridge reinforcement structure and the reinforcement method thereof according to the embodiment of the present application.
Fig. 3 is a schematic structural view of a seismic mount according to an embodiment of the present invention.
FIG. 4 is a schematic view showing the structure of a seismic mount, a coupling member, a vibration damping member, and a driving member according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a connecting rod and a limiting plate according to an embodiment of the present application.
Fig. 6 is a schematic structural view of a damper plate according to an embodiment of the present application.
Description of reference numerals: 1. a pier body; 2. a girder bridge body; 3. a shock insulation support; 31. a lower mounting plate; 311. a mounting cavity; 32. an upper mounting plate; 33. a lower mounting tube; 331. taking the hole; 332. connecting holes; 333. a connecting rod; 334. a limiting plate; 335. a buffer spring; 34. installing a pipe; 341. placing holes; 35. a steel plate; 36. a rubber pad; 4. a connecting member; 41. a threaded barrel; 5. a shock-absorbing member; 51. a damper cylinder; 52. a shock-absorbing rod; 53. a damping spring; 54. a damper plate; 541. a shock absorbing hole; 6. a drive member; 61. a drive rod; 62. a first bevel gear; 63. a second bevel gear; 7. and (4) bolts.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses an assembled beam slab bridge reinforcing structure and a reinforcing method thereof. Referring to fig. 1 and 2, the fabricated beam slab bridge reinforcing structure comprises a pier body 1, wherein the pier body 1 is formed on the ground in a pouring mode, a shock insulation support 3 is installed at the top of the pier body 1, and a beam slab bridge body 2 is installed at the top of the shock insulation support 3; when the girder slab bridge body 2 rocks, the shock insulation support 3 can offset the rocking of a part of the girder slab bridge body 2, so that the service life of the girder slab bridge body 2 is prolonged. The vibration isolation support 3 comprises a lower mounting plate 31 and an upper mounting plate 32; the lower mounting plate 31 is placed at the top of the pier body 1, the lower mounting plate 31 is a square plate, bolts 7 are arranged at four corners of the upper end surface of the lower mounting plate 31 in a threaded manner, and the four bolts 7 are arranged in the pier body 1 in a threaded manner, so that the lower mounting plate 31 is fixed; go up mounting panel 32 and hang and establish the top at mounting panel 31 down, go up mounting panel 32 and be square board, go up mounting panel 32 down four equal screw threads in edge of terminal surface wear to be equipped with bolt 7, four equal screw threads of bolt 7 wear to establish in beam slab bridge body 2 to fix last mounting panel 32.
Referring to fig. 3 and 4, the seismic isolation bearing 3 further includes a lower mounting pipe 33, an upper mounting pipe 34, a plurality of steel plates 35, and a plurality of rubber pads 36; the lower mounting pipe 33 is fixedly connected to the upper end face of the lower mounting plate 31, the lower mounting pipe 33 is vertically arranged, and the lower mounting pipe 33 is a square pipe; the upper mounting pipe 34 is fixedly connected to the lower end face of the upper mounting plate 32, the upper mounting pipe 34 is vertically arranged, the upper mounting pipe 34 is a square pipe, the upper mounting pipe 34 is slidably arranged in the lower mounting pipe 33, the outer side wall of the upper mounting pipe 34 is in contact with the inner side wall of the lower mounting pipe 33, the plurality of steel plates 35 are horizontally placed on the lower mounting plate 31, and the horizontal sections of the plurality of steel plates 35 are square; a plurality of rubber pads 36 are horizontally placed on lower mounting panel 31, and the horizontal cross-section of a plurality of rubber pads 36 is square, and a plurality of rubber pads 36 are the same with the size of a plurality of steel sheet 35, and a plurality of steel sheet 35 and a plurality of rubber pads 36 crisscross setting, the lateral wall of a plurality of steel sheet 35 and a plurality of rubber pads 36 and the inner wall contact of last installation pipe 34. The steel plates 35 can support the upper mounting plate 32, and in the process of shaking the upper mounting plate 32, the rubber pads 36 can offset part of shaking of the upper mounting plate 32.
Referring to fig. 3 and 4, a placing hole 341 is horizontally formed in a side wall of the top end of the upper mounting pipe 34, the top of the placing hole 341 is open, the vertical section of the placing hole 341 is square, and the steel plate 35 and the rubber pad 36 can be placed into the upper mounting pipe 34 through the placing hole 341; the hole 331 of taking has been seted up to the lateral wall of lower installation pipe 33 bottom level, and the bottom of the hole 331 of taking is the opening form, and the vertical cross-section of the hole 331 of taking is square, and the hole 331 of taking lies in same one side with placing hole 341, and steel sheet 35 and rubber pad 36 can be followed and taken out in the hole 331 of taking, and after steel sheet 35 and rubber pad 36 used ageing back for a long time, take out from the hole 331 of taking, put into from placing hole 341, can change steel sheet 35 and rubber pad 36.
Referring to fig. 4 and 5, a connecting hole 332 is formed in the side wall of the lower mounting tube 33 away from the taking hole 331, a horizontally arranged connecting rod 333 is slidably inserted into the connecting hole 332, the connecting rod 333 is a round rod, the connecting rod 333 is in contact with the steel plate 35, and the connecting rod 333 can push the steel plate 35 to move so as to take the steel plate 35 out of the taking hole 331; the cover is equipped with the limiting plate 334 with connecting rod 333 fixed connection on connecting rod 333, and limiting plate 334 is the level setting, and limiting plate 334 is square board, and limiting plate 334 is located down and installs the pipe 33, and limiting plate 334 and steel sheet 35 contact, and limiting plate 334 has restricted the movement track of connecting rod 333, has reduced the emergence that breaks away from the condition in connecting rod 333 installs the pipe 33 from down. A plurality of buffer spring 335 of fixedly connected with on the interior bottom surface of lower installation pipe 33, a plurality of buffer spring 335 are vertical setting, a plurality of buffer spring 335's top all with the lower terminal surface fixed connection of last installation pipe 34, buffer spring 335 can offset partly rocking of installing pipe 34 on, has improved the relatively poor problem of isolation bearing 3 shock attenuation effect.
Referring to fig. 4, a mounting cavity 311 is integrally formed in the lower mounting plate 31, two connecting members 4 are mounted on the lower mounting plate 31, and the two connecting members 4 are respectively located at two sides of the lower mounting pipe 33; the connecting part 4 comprises a threaded cylinder 41; the screw cylinder 41 is rotatably mounted on the upper end surface of the lower mounting plate 31, the screw cylinder 41 is vertically arranged, and the screw cylinder 41 penetrates through the mounting cavity 311. The mounting cavity 311 is mounted with a driving member 6, and the driving member 6 can drive the two screw cylinders 41 to rotate.
Referring to fig. 4, the driving part 6 includes a driving lever 61, two first bevel gears 62, and two second bevel gears 63; the driving rod 61 is rotatably installed on the inner wall of the installation cavity 311, the driving rod 61 is horizontally arranged, and the driving rod 61 penetrates through the outer side of the lower installation plate 31; the two first bevel gears 62 are respectively sleeved at two ends of the driving rod 61, the two first bevel gears 62 are both fixedly connected with the driving rod 61, the rotation directions of the two first bevel gears 62 are opposite, the driving rod 61 is rotated, and the driving rod 61 can drive the two first bevel gears 62 to rotate; the two second bevel gears 63 are respectively sleeved on the threaded cylinder 41, the two second bevel gears 63 are both fixedly connected with the threaded cylinder 41, the two second bevel gears 63 are respectively meshed with the first bevel gears 62, the two first bevel gears 62 respectively drive the second bevel gears 63 to rotate, and the two second bevel gears 63 respectively drive the threaded cylinder 41 to rotate.
Referring to fig. 4 and 6, two damping members 5 are mounted on the upper mounting plate 32, the two damping members 5 are respectively located at both sides of the lower mounting pipe 33, and the two damping members 5 are respectively arranged corresponding to the connecting member 4; the damper member 5 includes a damper cylinder 51, a damper rod 52, a damper spring 53, and a damper plate 54; the shock-absorbing cylinder 51 is fixedly connected with the lower end surface of the upper mounting plate 32, the shock-absorbing cylinder 51 is a square cylinder, and the shock-absorbing cylinder 51 is vertically arranged; the shock absorption rod 52 is slidably arranged in the shock absorption cylinder 51 in a penetrating manner, the shock absorption rod 52 is vertically arranged, the shock absorption rod 52 is arranged at the bottom of the shock absorption cylinder 51 in a penetrating manner, the side wall of the shock absorption rod 52 is provided with threads, and the shock absorption rod 52 is arranged in the threaded cylinder 41 in a penetrating manner; the damping spring 53 is fixedly connected to the inner top surface of the damping cylinder 51, and the bottom end of the damping spring 53 is fixedly connected to the top end of the damping rod 52. A screw thread section of thick bamboo 41 can drive shock attenuation pole 52 vertical migration, and shock attenuation pole 52 passes through damping spring 53 and drives shock attenuation section of thick bamboo 51 vertical migration, and shock attenuation section of thick bamboo 51 drives mounting panel 32 vertical migration, can adjust the height of last mounting panel 32, and meanwhile damping spring 53 can offset partly rocking of shock attenuation section of thick bamboo 51 to make damping spring 53 offset partly rocking of mounting panel 32, improved the relatively poor problem of 3 shock attenuation effects of isolation bearing.
Refer to fig. 4 and 6, the horizontal cover of shock attenuation board 54 is established on shock attenuation pole 52, shock attenuation board 54 and shock attenuation pole 52 fixed connection, shock attenuation board 54's lateral wall and the laminating of the inner wall of damper cylinder 51, shock attenuation hole 541 has been seted up on the terminal surface of shock attenuation board 54, the air in the damper cylinder 51 only circulates through shock attenuation hole 541, there is air resistance in the damper cylinder 51, partly rocking of damper cylinder 51 can be offset, further improvement the 3 relatively poor problems of shock attenuation effect of isolation bearing.
The implementation principle of the fabricated beam slab bridge reinforcing structure and the reinforcing method thereof in the embodiment of the application is as follows: firstly, the seismic isolation support 3 is placed between a pier body 1 and a beam-slab bridge body 2, and then a bolt 7 is rotated, so that a lower mounting plate 31 and an upper mounting plate 32 are fixed, then a driving rod 61 is rotated, the driving rod 61 drives two first bevel gears 62 to rotate, the two first bevel gears 62 respectively drive two second bevel gears 63 to rotate, the two second bevel gears 63 respectively drive a threaded cylinder 41 to rotate, the two threaded cylinders 41 respectively drive a damping rod 52 to vertically move, the two damping rods 52 respectively drive a damping spring 53 to vertically move, the two damping springs 53 respectively drive a damping cylinder 51 to vertically move, the two damping cylinders 51 respectively drive the upper mounting plate 32 to vertically move, the upper mounting plate 32 drives the beam-slab bridge body 2 to vertically move, the height of the beam-slab bridge body 2 can be adjusted, the time for workers to replace the seismic isolation supports 3 with different heights is saved, then a steel plate 35 and a rubber pad 36 are placed into an upper mounting pipe 34 from a placing hole 341, and the adjustment of the height of the seismic isolation support 3 is completed.
In the process of shaking the beam-slab bridge body 2, the beam-slab bridge body 2 drives the upper mounting plate 32 to shake, the upper mounting plate 32 drives the shock-absorbing cylinder 51 to shake, the shock-absorbing cylinder 51 applies external force to the shock-absorbing spring 53, and the shock-absorbing spring 53 has elasticity and can counteract shaking of a part of the shock-absorbing cylinder 51, so that the shock-absorbing spring 53 counteracts shaking of a part of the beam-slab bridge body 2, the problem of poor shock-absorbing effect of the shock-isolating support 3 is solved, and air in the shock-absorbing cylinder 51 only circulates through the shock-absorbing holes 541, air resistance exists in the shock-absorbing cylinder 51, shaking of a part of the shock-absorbing cylinder 51 can be counteracted, and the problem of poor shock-absorbing effect of the shock-isolating support 3 is further solved; meanwhile, the upper mounting plate 32 drives the upper mounting pipe 34 to shake, and the buffer spring 335 and the rubber pad 36 can offset the shaking of a part of the upper mounting pipe 34, so that the problem of poor shock absorption effect of the shock insulation support 3 is further solved.
After the steel plate 35 and the rubber pad 36 are aged for a long time, the connecting rod 333 is moved, the connecting rod 333 can push the steel plate 35 or the rubber pad 36 to move, so that the steel plate 35 and the rubber pad 36 can be taken out from the taking hole 331, and then new steel plate 35 and rubber pad 36 are placed in the placing hole 341, and the steel plate 35 and the rubber pad 36 can be replaced.
The method for reinforcing the fabricated beam slab bridge comprises the following steps:
s1, firstly, pouring and molding a plurality of pier bodies 1 on the ground, and prefabricating a beam slab bridge body 2.
S2, installing a seismic isolation support 3 at the top of the pier body 1, firstly placing the lower installation plate 31 on the pier body 1, then penetrating the four bolts 7 into the pier body 1 in a threaded manner, and fixing the lower installation plate 31.
S3, using the hoisting device to hoist the prefabricated beam slab bridge body 2 to the upper side of the pier body 1, and placing the beam slab bridge body 2 above the shock insulation support 3, so that the upper mounting plate 32 is attached to the bottom of the beam slab bridge body 2.
S4, the four bolts 7 on the upper mounting plate 32 are threaded through the beam-slab bridge body 2, and the upper mounting plate 32 is fixed.
And S5, starting the driving part 6, adjusting the height of the precast beam slab bridge body 2, and saving the time for replacing the shock insulation supports 3 with different heights when the height difference exists between the precast beam slab bridge bodies 2.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. The utility model provides an assembled beam slab bridge reinforced structure, includes pier body (1), erects beam slab bridge body (2) on pier body (1) and installs isolation bearing (3) between pier body (1) and beam slab bridge body (2), its characterized in that: the seismic isolation support (3) comprises a lower mounting plate (31) arranged on a pier body (1) and an upper mounting plate (32) arranged on a beam slab bridge body (2), wherein the top of the lower mounting plate (31) is fixedly connected with a lower mounting pipe (33), the bottom of the upper mounting plate (32) is fixedly connected with an upper mounting pipe (34), the upper mounting pipe (34) is slidably arranged in the lower mounting pipe (33), and a steel plate (35) and a rubber pad (36) are sequentially stacked in the lower mounting pipe (33) and the upper mounting pipe (34); the damping device is characterized in that two connecting parts (4) are mounted on the lower mounting plate (31), two damping parts (5) which are respectively connected with the connecting parts (4) are mounted on the upper mounting plate (32), the two damping parts (5) are respectively positioned on two sides of the mounting pipe (33), each damping part (5) comprises a damping cylinder (51) fixedly connected to the bottom of the upper mounting plate (32) and a damping rod (52) mounted on the connecting part (4), the damping rod (52) slides and penetrates through the damping cylinder (51), a damping spring (53) is fixedly connected to the inner wall of the damping cylinder (51), and the damping spring (53) is fixedly connected with the damping rod (52);
an installation cavity (311) is integrally formed in the lower installation plate (31), the connecting part (4) comprises a threaded cylinder (41) rotatably installed on the end face of the lower installation plate (31), threads are formed on the side wall of the shock absorption rod (52), the shock absorption rod (52) is arranged in the threaded cylinder (41) in a threaded manner, the threaded cylinder (41) is arranged in the installation cavity (311) in a penetrating manner, a driving part (6) for driving the two threaded cylinders (41) to rotate is installed in the installation cavity (311), and a placing hole (341) for placing a steel plate (35) and a rubber pad (36) is formed in the side wall of the upper installation pipe (34);
a taking hole (331) for taking the steel plate (35) and the rubber pad (36) is formed in the side wall of the lower mounting pipe (33);
a connecting hole (332) is formed in the side wall, away from the taking hole (331), of the lower mounting tube (33), and a connecting rod (333) is slidably arranged in the connecting hole (332) in a penetrating manner;
the connecting rod (333) is sleeved with a limiting plate (334) fixedly connected with the connecting rod (333), and the limiting plate (334) is located in the lower mounting pipe (33).
2. The fabricated girder slab bridge reinforcement structure of claim 1, wherein: the shock-absorbing device is characterized in that a shock-absorbing plate (54) fixedly connected with the shock-absorbing rod (52) is sleeved on the shock-absorbing rod (52), the side wall of the shock-absorbing plate (54) is attached to the inner wall of the shock-absorbing cylinder (51), and shock-absorbing holes (541) are formed in the shock-absorbing plate (54).
3. The fabricated girder slab bridge reinforcement structure of claim 1, wherein: drive part (6) are including rotating actuating lever (61) of installing on installation cavity (311) inner wall, the outside of installing panel (31) is worn to establish down in actuating lever (61), the cover is equipped with two first bevel gear (62) with actuating lever (61) fixed connection on actuating lever (61), two all the cover is equipped with second bevel gear (63) with a screw thread section of thick bamboo (41) fixed connection on screw thread section of thick bamboo (41), two second bevel gear (63) mesh with first bevel gear (62) respectively.
4. The fabricated girder slab bridge reinforcement structure of claim 1, wherein: a plurality of buffer springs (335) are fixedly connected to the inner bottom surface of the lower mounting pipe (33), and the buffer springs (335) are fixedly connected to the end surface of the upper mounting pipe (34).
5. A fabricated girder bridge reinforcing method using a fabricated girder bridge reinforcing structure according to any one of claims 1 to 4, comprising the steps of:
pouring a pier body (1) on the ground; a shock insulation support (3) is arranged at the top of the pier body (1); hoisting the prefabricated beam slab bridge body (2) to the upper part of the pier body (1) by using a hoisting device, and placing the beam slab bridge body (2) above the shock insulation support (3); fixing the vibration isolation support (3) with the beam slab bridge body (2); and starting the driving part (6) to adjust the height of the beam-slab bridge body (2).
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| CN202110999762.7A CN113622323B (en) | 2021-08-30 | 2021-08-30 | Assembly type beam slab bridge reinforcing structure and reinforcing method thereof |
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| CN202110999762.7A CN113622323B (en) | 2021-08-30 | 2021-08-30 | Assembly type beam slab bridge reinforcing structure and reinforcing method thereof |
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| CN113622323B true CN113622323B (en) | 2023-03-31 |
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| CN114775445B (en) * | 2022-05-25 | 2023-12-22 | 长沙市公路桥梁建设有限责任公司 | Prefabricated bridge segment splicing structure and splicing method |
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| CN108468460A (en) * | 2018-06-18 | 2018-08-31 | 佛山奎丰商务咨询服务有限公司 | A kind of antidetonation vibration damping holder for building |
| CN209428935U (en) * | 2019-01-11 | 2019-09-24 | 张春燕 | A kind of bridge girder anti-seismic bearing |
| CN212128832U (en) * | 2020-01-21 | 2020-12-11 | 邝君柯 | Bridge beam supports adjustment mechanism |
| CN212582410U (en) * | 2020-06-30 | 2021-02-23 | 衡水双金橡塑制品有限公司 | Adjusting device for bridge support |
| CN213653177U (en) * | 2020-08-31 | 2021-07-09 | 广州市恒鼎建设工程有限公司 | Bridge structure damping damper |
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Address after: No. 16 Ganggang Road, Yingzhou District, Fuyang City, Anhui Province, 236001 Patentee after: Fuyang Water Conservancy and Hydropower Construction Group Co.,Ltd. Address before: 236033 east of Gangkou road and west of zhou21 Road, Yingzhou Economic Development Zone, Fuyang City, Anhui Province Patentee before: Fuyang water conservancy construction and installation engineering Co. |