CN114197295A - High-strength anti-seismic buffer structure for steel bridge and design method - Google Patents
High-strength anti-seismic buffer structure for steel bridge and design method Download PDFInfo
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- CN114197295A CN114197295A CN202210076183.XA CN202210076183A CN114197295A CN 114197295 A CN114197295 A CN 114197295A CN 202210076183 A CN202210076183 A CN 202210076183A CN 114197295 A CN114197295 A CN 114197295A
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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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Abstract
The invention discloses a high-strength anti-seismic buffer structure for a steel bridge and a design method thereof. According to the invention, through the mutual matching of the movable block, the slide rod, the first spring, the abutting block, the positioning rod, the spring steel and the second spring, the anti-seismic performance of the whole support can be enhanced, the service life of the support is prolonged, and through the mutual matching of the mounting seat, the fixed block, the cavity, the third spring, the movable plate, the screw rod and the nut, the quick mounting and dismounting between the upper support and the lower support can be realized, and the working difficulty of workers is reduced.
Description
Technical Field
The invention relates to the technical field of anti-seismic buffer structures, in particular to a high-strength anti-seismic buffer structure for a steel bridge and a design method.
Background
The steel bridge is a bridge using steel as main building material, and has the characteristics of high strength and large rigidity, and compared with concrete bridge, it can reduce the beam height and dead weight, and is generally erected on the river, lake and sea, so that the structure can make the vehicles and pedestrians smoothly pass through, and in order to adapt to the modern high-speed developed traffic industry, the bridge is also extended to be a building which can be erected for spanning mountain stream, unfavorable geology or meeting other traffic requirements and making the passing more convenient.
At present bridge along with the lapse of time, the life of bridge can reduce, in order to guarantee the life of bridge, consequently current bridge can install the antidetonation support at the in-process of construction, and current antidetonation support is at the in-process that uses, and the antidetonation effect is relatively poor to at the in-process that uses, along with the lapse of time and antidetonation effect can slowly worsen, at the in-process of carrying out antidetonation simultaneously, the support nature of support is relatively poor.
Disclosure of Invention
The invention aims to: in order to solve the problems, the invention provides a high-strength anti-seismic buffer structure for a steel bridge and a design method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-strength anti-seismic buffer structure for a steel bridge and a design method thereof comprise a cement building platform, a lower support and an upper support, wherein the upper wall of the cement building platform is provided with a plurality of uniformly distributed mounting seats, the lower wall of the lower support is provided with a plurality of uniformly distributed fixed blocks which are respectively matched with the mounting seats, the upper wall of the lower support is provided with an assembly groove, the lower wall inside the assembly groove is slidably connected with two symmetrically distributed movable blocks, one side of each of the two movable blocks, which is close to the lateral wall of the assembly groove, is fixedly connected with two symmetrically distributed slide bars, the two slide bars are respectively sleeved with a first spring, the lower wall of the upper support is fixedly connected with abutting blocks matched with the two movable blocks, two symmetrically distributed thread grooves are respectively formed in two sides of the upper wall of the lower support, two symmetrically distributed positioning rods matched with the thread grooves are respectively embedded in two sides of the upper wall of the upper support, the locating lever extends to the inside of thread groove to with thread groove threaded connection, the cover is equipped with spring steel and second spring on the locating lever, the last upper surface wall fixedly connected with mounting panel of upper bracket.
Preferably, the last wall of mount pad is seted up and is led to the groove with fixed block complex, it all is provided with the cavity to lead to the inside both sides of groove, the inside third spring of keeping away from two symmetric distributions of a table wall fixedly connected with that lead to the groove of cavity, the same fly leaf of the flexible end fixedly connected with of third spring, one side fixedly connected with stopper that the third spring was kept away from to the fly leaf, the one end that the fly leaf was kept away from to the stopper extends to the inside that leads to the groove, one side that is close to the fixed block of stopper is provided with the inclined plane, one side fixedly connected with screw rod of stopper is kept away from to the fly leaf, the one end that the fly leaf was kept away from to the screw rod extends to the outside of mount pad to fixedly connected with dog, the cover is equipped with the nut on the screw rod.
Preferably, the both sides of fixed block all seted up with the spacing spout of stopper complex, the stopper sets up the inside at spacing spout, table wall sliding connection in fly leaf and the cavity, the nut cover is established on the screw rod to with screw rod threaded connection, the last wall subsides of mount pad have the shock pad, the lower table wall and the shock pad contact of undersetting.
Preferably, the slide bar is kept away from the one end of movable block and is run through the outside that the assembly groove extends to the undersetting to with assembly groove side table wall sliding connection, the one end of first spring and the side table wall fixed connection of movable block, the flexible end of first spring and the side table wall fixed connection of assembly groove, the table wall that the movable block is close to the butt piece sets up to the inclined plane, the one end both sides that the butt piece is close to the movable block all set up to the inclined plane.
Preferably, the locating lever and the upper surface wall sliding connection of upper bracket, inlay on the spring steel and be equipped with the passing through with the locating lever complex, the spring steel passes through the through-hole cover and establishes on the locating lever to with locating lever sliding connection, the one end of second spring and the lower surface wall fixed connection of spring steel, the flexible end of second spring and the upper surface wall fixed connection of spring steel.
Preferably, the upper surface wall of the mounting plate is provided with a plurality of mounting holes which are uniformly distributed.
A method of designing a high-strength anti-seismic buffer structure for a steel bridge, the method comprising the steps of:
firstly, a plurality of cement building platforms which are uniformly distributed are arranged at a place where a support is needed to be erected on a steel bridge, then a fixed block of the lower surface wall of a lower support is aligned to a through groove of the upper surface wall of a mounting seat, the fixed block is arranged inside the through groove, when the fixed block slides towards the inside of the through groove, the fixed block pushes a limiting block towards the cavity, when the fixed block is completely embedded in the through groove, the limiting block is ejected to the inside of a limiting sliding groove on the fixed block under the action of a third spring, so that the lower surface wall of the limiting block is fully contacted with the inner surface wall of the limiting sliding groove, and the purpose of fastening the fixed block is achieved;
after the lower support is fixed, the abutting block of the upper support is placed in the assembling groove, the inclined surfaces of two sides of the bottom of the abutting block are completely attached to the inclined surfaces of the two movable blocks, then the bottom of the positioning rod of the upper support is screwed into the threaded groove of the lower support, before the positioning rod is installed, the second spring is embedded in the inner side of the spring steel, the spring steel and the second spring are sleeved on the positioning rod, and the lower support and the upper support are fastened and connected;
step three, fastening connection of other steel structural members is carried out through the mounting plate, under the action of external force, the upper support moves towards the direction close to the lower support, the upper support extrudes the spring steel and the second spring, meanwhile, the abutting blocks continue to move towards the inside of the assembling groove, the two movable blocks are extruded to slide towards two sides, the first spring is further extruded, under the mutual matching action of the first spring, the spring steel and the second spring, a certain buffering effect is achieved, the external impact force is effectively reduced, and the service life of the bridge is prolonged to a certain extent;
step four, when dismantling undersetting and upper bracket, screw out locating lever 11 from the thread groove, and take out from the upper bracket, and then take out spring steel and second spring, make the separation between undersetting and the upper bracket, outwards spur the screw rod again, make the screw rod drive the fly leaf and slide to the direction of keeping away from logical groove, make the stopper slide into the inside of cavity, then screw the nut, make the nut fully contact with the exterior wall of mount pad, under the cooperation of third spring, make the stopper stabilize in the inside of cavity, be convenient for take out the fixed block from the logical inslot of mount pad, thereby realize the dismantlement of undersetting, be convenient for staff's change to whole bearing structure.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. this application is through mutually supporting of the movable block, slide bar, first spring, butt joint piece, locating lever, spring steel and the second spring that set up, can strengthen the anti-seismic performance of whole support, prolongs the life of support.
2. This application is through mutually supporting of mount pad, fixed block, cavity, third spring, fly leaf, screw rod and the nut that sets up, can realize the quick installation between upper bracket and the undersetting and dismantle, reduces staff's the work degree of difficulty.
Drawings
FIG. 1 is a schematic diagram illustrating an overall structure of a steel bridge support according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an assembly structure of a steel bridge support provided by an embodiment of the invention;
FIG. 3 is a first cross-sectional structural schematic diagram of a side surface of a steel bridge support provided according to an embodiment of the invention;
FIG. 4 is a second cross-sectional structural schematic view of a side surface of a steel bridge support provided according to an embodiment of the invention;
FIG. 5 is a schematic view illustrating a structure of the movable plate and the limiting block;
fig. 6 is a schematic diagram illustrating an enlarged structure at a in fig. 5 according to an embodiment of the present invention.
Illustration of the drawings:
1. building a cement platform; 2. a lower support; 3. an upper support; 4. a mounting seat; 5. a fixed block; 6. a shock pad; 7. a movable block; 8. a slide bar; 9. a first spring; 10. a butting block; 11. positioning a rod; 12. spring steel; 13. a second spring; 14. mounting a plate; 15. a cavity; 16. a third spring; 17. a movable plate; 18. a limiting block; 19. a screw; 20. and (4) a nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution:
a high-strength anti-seismic buffer structure for a steel bridge and a design method thereof comprise a cement building platform 1, a lower support 2 and an upper support 3, wherein the upper surface wall of the cement building platform 1 is provided with a plurality of uniformly distributed installation seats 4, the lower surface wall of the lower support 2 is provided with a plurality of uniformly distributed fixed blocks 5 respectively matched with the installation seats 4, the upper surface wall of the lower support 2 is provided with an assembly groove, the lower surface wall inside the assembly groove is slidably connected with two symmetrically distributed movable blocks 7, one side of each movable block 7, close to the side surface wall of the assembly groove, is fixedly connected with two symmetrically distributed slide bars 8, each slide bar 8 is sleeved with a first spring 9, the lower surface wall of the upper support 3 is fixedly connected with a butt block 10 matched with the two movable blocks 7, two symmetrically distributed thread grooves are respectively formed in two sides of the upper surface wall of the lower support 2, two symmetrically distributed positioning rods 11 matched with the thread grooves are respectively embedded in two sides of the upper surface wall of the upper support 3, the locating rod 11 extends to the inside of thread groove to with thread groove threaded connection, the cover is equipped with spring steel 12 and second spring 13 on the locating rod 11, the last upper surface wall fixedly connected with mounting panel 14 of upper bracket 3.
Specifically, as shown in fig. 4 and fig. 6, the last wall of mount pad 4 is seted up and is passed through the groove with fixed block 5 complex, the inside both sides of leading to the groove all are provided with cavity 15, the inside third spring 16 of keeping away from two symmetric distributions of a side table wall fixedly connected with that lead to the groove of cavity 15, the flexible end fixedly connected with of third spring 16 has same fly leaf 17, one side fixedly connected with stopper 18 that third spring 16 was kept away from to fly leaf 17, the one end that fly leaf 17 was kept away from to stopper 18 extends to the inside that leads to the groove, one side that is close to fixed block 5 of stopper 18 is provided with the inclined plane, avoid stopper 18 to appear the problem of slippage when being convenient for the fixed block 5 installation, one side fixedly connected with screw rod 19 that stopper 18 was kept away from to fly leaf 17, screw rod 19 keeps away from the one end of fly leaf 17 and extends to the outside of mount pad 4, and fixedly connected with dog, the cover is equipped with nut 20 on the screw rod 19.
Specifically, as shown in fig. 4 and 6, the limiting sliding grooves matched with the limiting blocks 18 are formed in the two sides of the fixing block 5, the limiting blocks 18 are arranged inside the limiting sliding grooves, the movable plate 17 is in sliding connection with the inner surface wall of the cavity 15, the nut 20 is sleeved on the screw rod 19 and is in threaded connection with the screw rod 19, the damping pad 6 is attached to the upper surface wall of the mounting seat 4, and the lower surface wall of the lower support 2 is in contact with the damping pad 6.
Specifically, as shown in fig. 2 and 3, the one end that movable block 7 was kept away from to slide bar 8 runs through the outside that the assembly groove extended to undersetting 2, and with assembly groove side table wall sliding connection, the one end of first spring 9 and the side table wall fixed connection of movable block 7, the flexible end of first spring 9 and the side table wall fixed connection of assembly groove, the table wall that movable block 7 is close to butt piece 10 sets up to the inclined plane, be convenient for butt piece 10 extrudees movable block 7, be convenient for reach the purpose of shock attenuation buffering, the one end both sides that butt piece 10 is close to movable block 7 all set up to the inclined plane.
Specifically, as shown in fig. 2, a positioning rod 11 is slidably connected to the upper surface wall of the upper support 3, a spring steel 12 is embedded in the spring steel 12 and is matched with the positioning rod 11, the spring steel 12 is sleeved on the positioning rod 11 through a through hole and is slidably connected to the positioning rod 11, one end of a second spring 13 is fixedly connected to the lower surface wall of the spring steel 12, and a telescopic end of the second spring 13 is fixedly connected to the upper surface wall of the spring steel 12.
Specifically, as shown in fig. 1 and 2, the upper wall of the mounting plate 14 is provided with a plurality of mounting holes uniformly distributed.
A high-strength anti-seismic buffer structure for a steel bridge and a design method thereof are disclosed, wherein the method comprises the following steps:
firstly, arranging a plurality of uniformly distributed cement building platforms 1 at a place where a support is needed for erecting a steel bridge, aligning a fixing block 5 on the lower surface wall of a lower support 2 with a through groove on the upper surface wall of a mounting seat 4, arranging the fixing block 5 in the through groove, pushing a limiting block 18 into a cavity 15 by the fixing block 5 when the fixing block 5 slides towards the inside of the through groove, and ejecting the limiting block 18 to the inside of a limiting sliding groove on the fixing block 5 under the action of a third spring 16 when the fixing block 5 is completely embedded in the through groove, so that the lower surface wall of the limiting block 18 is fully contacted with the inner surface wall of the limiting sliding groove, and the purpose of fastening the fixing block 5 is achieved;
step two, after the lower support 2 is fixed, the abutting block 10 of the upper support 3 is placed in the assembling groove, the inclined surfaces of two sides of the bottom of the abutting block 10 are completely attached to the inclined surfaces of the two movable blocks 7, then the bottom of the positioning rod 11 of the upper support 3 is screwed into the threaded groove of the lower support 2, before the positioning rod 11 is installed, the second spring 13 is embedded on the inner side of the spring steel 12, the spring steel 12 and the second spring 13 are both sleeved on the positioning rod 11, and the lower support 2 and the upper support 3 are further fixedly connected;
step three, fastening connection of other steel structural members is carried out through the mounting plate 14, under the action of external force, the upper support 3 moves towards the direction close to the lower support 2, so that the upper support 3 extrudes the spring steel 12 and the second spring 13, meanwhile, the abutting block 10 continuously moves towards the inside of the assembling groove, so that the two movable blocks 7 are extruded to slide towards two sides, further the first spring 9 is extruded, under the mutual matching action of the first spring 9, the spring steel 12 and the second spring 13, a certain buffering effect is achieved, the external impact force is effectively reduced, and the service life of the bridge is prolonged to a certain extent;
step four, when the lower support 2 and the upper support 3 are disassembled, the positioning rod 11 is screwed out from the thread groove, and is pulled away from the upper support 3, and further the spring steel 12 and the second spring 13 are pulled away, so that the lower support 2 is separated from the upper support 3, and the screw rod 19 is pulled outwards, so that the screw rod 19 drives the movable plate 17 to slide towards the direction far away from the through groove, so that the limit block 18 slides into the inside of the cavity 15, and then the nut 20 is screwed, so that the nut 20 is fully contacted with the outer wall of the mounting seat 4, under the cooperation of the third spring 16, the limit block 18 is stabilized inside the cavity 15, the fixed block 5 is conveniently taken out from the through groove of the mounting seat 4, so that the lower support 2 is disassembled, and the whole supporting structure is conveniently replaced by workers.
The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a high strength's antidetonation buffer structure for steel bridge, includes that cement builds platform (1), undersetting (2) and upper bracket (3), its characterized in that, the last wall of cement builds platform (1) is provided with a plurality of evenly distributed's mount pad (4), the lower wall of undersetting (2) is provided with a plurality of evenly distributed and a plurality of mount pad (4) respectively the complex fixed block (5), the assembly groove has been seted up to the upper wall of undersetting (2), the inside lower wall sliding connection of assembly groove has two symmetric distribution's movable block (7), two one side that movable block (7) are close to assembly groove side table wall all fixedly connected with two symmetric distribution's slide bar (8), two all overlap on slide bar (8) and be equipped with first spring (9), the lower wall fixedly connected with of upper bracket (3) and two movable block (7) complex butt joint piece (10), the utility model discloses a spring steel spring, including lower support (2), last wall both sides of upper bracket (3) are all seted up the thread groove of two symmetric distributions, the last wall both sides of upper bracket (3) all inlay be equipped with two symmetric distributions with thread groove complex locating lever (11), locating lever (11) extend to the inside of thread groove to with thread groove threaded connection, the cover is equipped with spring steel (12) and second spring (13) on locating lever (11), the last wall fixedly connected with mounting panel (14) of upper bracket (3).
2. The high-strength anti-seismic buffering structure for the steel bridge according to claim 1, wherein a through groove matched with the fixed block (5) is formed in the upper surface wall of the mounting seat (4), cavities (15) are formed in two sides of the inside of the through groove, two symmetrically distributed third springs (16) are fixedly connected to one side surface wall of the inside of each cavity (15) far away from the through groove, a same movable plate (17) is fixedly connected to the telescopic end of each third spring (16), a limiting block (18) is fixedly connected to one side of each movable plate (17) far away from the corresponding third spring (16), one end of each limiting block (18) far away from the corresponding movable plate (17) extends to the inside of the corresponding through groove, an inclined surface is arranged on one side of each limiting block (18) close to the corresponding fixed block (5), and a screw rod (19) is fixedly connected to one side of each movable plate (17) far away from the corresponding limiting block (18), one end of the screw rod (19) far away from the movable plate (17) extends to the outside of the mounting seat (4), a check block is fixedly connected with the screw rod, and a nut (20) is sleeved on the screw rod (19).
3. The high-strength anti-seismic buffering structure for the steel bridge according to claim 2, characterized in that limiting sliding grooves matched with the limiting blocks (18) are formed in two sides of the fixing block (5), the limiting blocks (18) are arranged inside the limiting sliding grooves, the movable plate (17) is in sliding connection with the inner surface wall of the cavity (15), the nut (20) is sleeved on the screw rod (19) and is in threaded connection with the screw rod (19), the damping pad (6) is attached to the upper surface wall of the mounting seat (4), and the lower surface wall of the lower support (2) is in contact with the damping pad (6).
4. A high-strength anti-seismic buffer structure for a steel bridge according to claim 1, wherein one end of the sliding rod (8) far away from the movable block (7) extends to the outside of the lower support (2) through the assembly groove and is in sliding connection with the side surface wall of the assembly groove, one end of the first spring (9) is fixedly connected with the side surface wall of the movable block (7), the telescopic end of the first spring (9) is fixedly connected with the side surface wall of the assembly groove, the surface wall of the movable block (7) close to the abutting block (10) is arranged to be an inclined surface, and both sides of one end of the abutting block (10) close to the movable block (7) are arranged to be inclined surfaces.
5. The high-strength anti-seismic buffer structure for the steel bridge according to claim 1, wherein the positioning rod (11) is slidably connected with the upper surface wall of the upper support (3), the spring steel (12) is embedded with a through hole matched with the positioning rod (11), the spring steel (12) is sleeved on the positioning rod (11) through the through hole and is slidably connected with the positioning rod (11), one end of the second spring (13) is fixedly connected with the lower surface wall of the spring steel (12), and the telescopic end of the second spring (13) is fixedly connected with the upper surface wall of the spring steel (12).
6. A high strength seismic buffer structure for steel bridges according to claim 1, wherein the upper surface wall of said mounting plate (14) is provided with a plurality of mounting holes uniformly distributed.
7. A design method of a high-strength anti-seismic buffer structure for a steel bridge is characterized by comprising the following steps:
firstly, a plurality of uniformly distributed cement building platforms (1) are arranged at a place where a support is needed for erecting a steel bridge, then a fixing block (5) of the lower surface wall of a lower support (2) is aligned to a through groove of the upper surface wall of an installation seat (4), the fixing block (5) is arranged inside the through groove, when the fixing block (5) slides towards the inside of the through groove, the fixing block (5) pushes a limiting block (18) into a cavity (15), when the fixing block (5) is completely embedded in the through groove, the limiting block (18) is ejected to the inside of a limiting sliding groove on the fixing block (5) under the action of a third spring (16), so that the lower surface wall of the limiting block (18) is fully contacted with the inner surface wall of the limiting sliding groove, and the purpose of fastening the fixing block (5) is achieved;
step two, after the lower support (2) is fixed, placing a butting block (10) of the upper support (3) in an assembly groove, enabling inclined planes on two sides of the bottom of the butting block (10) to be completely attached to inclined planes of two movable blocks (7), then screwing the bottom of a positioning rod (11) of the upper support (3) into a threaded groove of the lower support (2), embedding a second spring (13) on the inner side of spring steel (12) before the positioning rod (11) is installed, enabling the spring steel (12) and the second spring (13) to be sleeved on the positioning rod (11), and further enabling the lower support (2) and the upper support (3) to be connected in a fastening mode;
step three, fastening connection of other steel structural members is carried out through the mounting plate (14), under the action of external force, the upper support (3) moves towards the direction close to the lower support (2), so that the upper support (3) extrudes the spring steel (12) and the second spring (13), meanwhile, the abutting block (10) continues to move towards the inside of the assembling groove, so that the two movable blocks (7) are extruded to slide towards two sides, and further the first spring (9) is extruded, under the mutual matching action of the first spring (9), the spring steel (12) and the second spring (13), a certain buffering effect is achieved, the external impact force is effectively reduced, and the service life of the bridge is prolonged to a certain extent;
step four, when the lower support (2) and the upper support (3) are disassembled, the positioning rod (11) is screwed out from the thread groove and is pulled away from the upper support (3), further drawing the spring steel (12) and the second spring (13) away to separate the lower support (2) and the upper support (3), and then pulling the screw rod (19) outwards, so that the screw rod (19) drives the movable plate (17) to slide towards the direction far away from the through groove, the limiting block (18) slides into the cavity (15), then the screw cap (20) is screwed tightly, so that the screw cap (20) is fully contacted with the outer surface wall of the mounting seat (4), under the cooperation of the third spring (16), the limiting block (18) is stabilized in the cavity (15) to facilitate the fixed block (5) to be taken out from the through groove of the mounting seat (4), thereby realize the dismantlement of undersetting (2), be convenient for the staff to the change of whole bearing structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210076183.XA CN114197295A (en) | 2022-01-24 | 2022-01-24 | High-strength anti-seismic buffer structure for steel bridge and design method |
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| CN202210076183.XA CN114197295A (en) | 2022-01-24 | 2022-01-24 | High-strength anti-seismic buffer structure for steel bridge and design method |
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