CN116084269A - Single-span seamless abutment-free bridge and use method thereof - Google Patents

Abstract

The application discloses a single-span seamless abutment-free bridge and a using method thereof, and belongs to the technical field of bridges. The anti-seismic device comprises a bridge framework A, a bridge framework B, road surface guide plates, a reinforcing structure, an anti-seismic mechanism, corbels and an anti-wind mechanism, wherein two bridge frameworks A are symmetrically arranged, and the bridge framework A is used for paving a road surface main body; through the setting of anti-wind mechanism, anti-wind mechanism can make bridge skeleton A and bridge skeleton B resist horizontal wind, and after bridge skeleton A and bridge skeleton B take place to shift, anti-wind mechanism can reduce bridge skeleton A and bridge skeleton B's displacement volume, prevents bridge skeleton A and bridge skeleton B dislocation and causes the bridge to damage, also can reduce wearing and tearing between each component, improves the holistic life of bridge.

Description

Single-span seamless abutment-free bridge and use method thereof

Technical Field

The application relates to the technical field of bridges, in particular to a single-span seamless bridge without abutment and a use method.

Background

The common bridge is connected with the road at two ends of the bridge through bridge decks, and expansion joints are arranged at the bridge decks. The expansion joint is extremely easy to damage due to the severe use environment, and is a weak link of the bridge; from the beginning of the 20 th century, the bridge industry developed research and applications for seamless bridges. The seamless bridge is a bridge with a continuous upper structure and no expansion device in the range of the tail ends of the guide plates at the two ends. The existing seamless bridge is provided with bridge abutment at the joint of road and bridge, and can be divided into three types: integral abutment bridge, semi-integral abutment bridge, extension deck abutment bridge.

The document with the prior art publication number of CN114892498A provides a single-span seamless bridge without bridge abutment, and the device supports a beam body through the arrangement of pile foundations, support seats, end cross beams and guide plates, so that the bridge body forms a bridge building without bridge abutment.

In the related art, through the arrangement of pile foundations, support bases, end cross beams and guide plates, the support of a beam body is achieved, and a bridge building without bridge abutment is formed.

In the prior art scheme, the arrangement of pile foundations, support seats, end cross beams and guide plates can realize the effect of supporting a beam body to form a bridge building without a bridge abutment, but the following defects still exist; the whole span that spans of the bridge body is great for the bridge body receives wind-force great when transversely coming the wind, and this bridge body does not set up any mechanism that resists transversely coming the wind, make the bridge body receive the life reduction under transversely coming the wind, and when the vehicle is driven to the bridge centre, the vertical force that receives in the middle of the bridge is biggest, and there is not any protection to the bridge intermediate position in this device, collapse phenomenon easily takes place, probably cause irrecoverable loss, and the ratio of carrying out reinforcing bar and steel component is aggravated simply in other solutions and is realized intensity promotion, but this kind of solution input is huge and intensity enhancement effect upper limit is limited.

In view of the above, we propose a single span seamless abutment-free bridge and method of use.

Disclosure of Invention

1. Technical problem to be solved

The utility model provides a single span seamless abutment-free bridge and application method, it is great to have solved the whole span of bridge body, make the bridge body receive wind-force great when transversely coming wind, and this bridge body does not set up any mechanism that resists transversely coming wind, make the bridge body receive the life reduction under transversely coming wind, and when the vehicle is driven to the bridge centre, the vertical force that receives in the middle of the bridge is biggest, and do not have any protection to the bridge intermediate position in this device, collapse phenomenon easily takes place, the technical problem of the loss of possible irrecoverable, realized making bridge intermediate position bearing capacity stronger, and the holistic anti-wind effect of bridge is better, the security of improving the bridge use, also can reduce wearing and tearing between each component, the technical effect of the holistic life of bridge improves.

2. Technical proposal

The embodiment of the application provides a single-span seamless bridge without bridge abutment and a use method thereof, wherein the single-span seamless bridge comprises a bridge framework A, a bridge framework B, a pavement slab, a reinforcing structure, an anti-seismic mechanism, brackets and an anti-wind mechanism;

the bridge framework A is symmetrically provided with two bridge frameworks, and the bridge frameworks A are used for paving a pavement main body;

the bridge framework B is arranged between the two bridge frameworks A, a bottom bearing carrier plate is fixedly arranged at the bottom end of the bridge framework B through a connecting support A, the bottom bearing carrier plate is fixedly connected with the bridge framework A through bearing bolts, the bridge framework B is used for paving a pavement main body, and the bottom bearing carrier plate is used for stably fixing the bridge framework B between the bridge frameworks A so as to be convenient for bearing;

the road surface guide plate is arranged at one side of the top end of the bridge framework A and is used for guiding vehicles or pedestrians to travel at the top end of the road surface main body;

the reinforcing structures are arranged at the bottom ends of the bridge skeleton A and the bottom bearing carrier plate, and are provided with a plurality of groups, and the reinforcing structures are used for enhancing the bearing capacity of the bridge skeleton A and the bridge skeleton B;

the anti-seismic mechanisms are arranged at the bottom end of the reinforcing structure, the number of the anti-seismic mechanisms is consistent with that of the reinforcing structure, and the anti-seismic mechanisms are used for reducing vibration generated by running of vehicles at the top ends of the bridge framework A, the bridge framework B and the pavement main body;

the bracket is arranged on one side below the bridge framework A, is arranged on one side of the reinforcing structure, is consistent with the reinforcing structure in number, is fixedly provided with a bearing table at the bottom end, is used for integrally supporting the bridge and shares the gravity born by the bridge framework B in the bridge;

the wind resistance mechanism is arranged on two sides of the road surface guide plate, and is used for enabling the displacement between the bridge framework A and the bridge framework B to be reduced when the displacement is subjected to transverse wind, and simultaneously reducing friction between all components by being matched with the friction reducing pad.

Through adopting above-mentioned technical scheme, wind-resistant mechanism can reduce bridge skeleton A and bridge skeleton B's displacement, prevent bridge skeleton A and bridge skeleton B dislocation and cause the bridge to damage, also can reduce wearing and tearing between each component, improve the holistic life of bridge, reinforced structure's setting can make the bridge skeleton B bearing capacity who is located the middle part stronger, bear the partial gravity import bracket that bridge skeleton B bore, reach and share neutral effect, increase the holistic bearing capacity of bridge, and vibration-resistant mechanism's setting can reduce the injury of vibrations to the bridge when receiving the vibrations that the vehicle was gone produced by bridge skeleton A and bridge skeleton B, and vibration-resistant mechanism can make bridge skeleton A and bridge skeleton B take place to deform and reduce the shake power, make the bridge can be better use.

As an alternative scheme of this application file technical scheme, pour district has all been seted up on bridge skeleton A and bridge skeleton B's top, road surface main part sets up in the inboard of pouring the district, a plurality of wind holes have all been seted up to bridge skeleton A's one side, the wind hole runs through in bridge skeleton A's one side, bridge skeleton A is mutual the fixed transverse antifriction pad A that is provided with of one side symmetry that keeps away from each other.

Through adopting above-mentioned technical scheme, the wind hole can cooperate the use of anti-wind mechanism, when wind passed the wind hole, can make bridge skeleton A and bridge skeleton B have better stability, reduces bridge skeleton A and bridge skeleton B's rocking.

As an alternative scheme of this application file technical scheme, reinforced structure still includes the atress girder, the top of atress girder is provided with hanging beam and pressure-bearing auxiliary girder, the pressure-bearing auxiliary girder is the slope setting, the pressure-bearing auxiliary girder is fixed to be set up in bridge skeleton A's bottom through connecting support D, the fixed connection support C that is provided with in hanging beam's top, connecting support C's top is fixed to be provided with and connects the seatpad, the fixed well carrier plate that is provided with in top one side of atress girder.

Through adopting above-mentioned technical scheme, reinforced structure's setting can make the bridge skeleton B bearing capacity that is located the middle part stronger, bears the leading-in bracket of partial gravity that bridge skeleton B bore, reaches and shares neutral effect, increases the holistic bearing capacity of bridge

As an alternative scheme of this application technical scheme, the fixed connection support B that is provided with in one side of atress girder, connection support B is fixed to be set up in one side of bracket, well carrier plate is fixed to be set up in the middle of the bottom of carrying the carrier plate in the bottom, the connection seatpad passes through fastening bolt to be fixed to be set up in bridge skeleton A's bottom, the bottom of hanging beam and pressure-bearing auxiliary girder all is provided with triangular block, triangular groove has been seted up to the top of atress girder corresponds the position of triangular block, triangular block sets up in triangular groove's inboard.

By adopting the technical scheme, the reinforcing structure is convenient to use.

As an alternative scheme of this application technical scheme, antidetonation mechanism still includes protective sleeve, protective sleeve's inboard slides and is provided with the traveller, the fixed long spring that is provided with of one end of traveller, the fixed inboard one end that sets up in protective sleeve of long spring, the other end of traveller rotates and is provided with mount table A, protective sleeve's one end rotates and is provided with mount table B, connect through the universal joint between protective sleeve and mount table B and traveller and the mount table A, protective sleeve's the other end is fixed and is provided with the flexible cover of protection, the flexible cover of protection is fixed to be set up in the one end outside of traveller.

Through adopting above-mentioned technical scheme, the connecting mode of universal joint has been used wherein to antidetonation mechanism, consequently can not influence the use of anti-wind mechanism, and antidetonation mechanism's setting can reduce the injury of vibrations to the bridge when receiving the vibrations that the vehicle was driven produced by bridge skeleton A and bridge skeleton B, and antidetonation mechanism can make bridge skeleton A and bridge skeleton B take place deformation to reduce the vibration power, makes the bridge can be better use.

As an alternative scheme of this application file technical scheme, mount table A is fixed to be set up in the bottom of atress girder, mount table B is fixed to be set up in one side of bracket, and mount table B is located the below of connecting support B.

By adopting the technical scheme, the anti-seismic mechanism can be used better.

As an alternative scheme of this application technical scheme, wind-resistant mechanism still includes bears the frame, the both sides that bear the frame all are provided with a plurality of reset spring and telescopic link, the telescopic link sets up in reset spring's inboard, reset spring and telescopic link are all fixed to be set up in bridge skeleton A's both sides, bear the both sides of frame and all pass through mounting bolt and curb plate fixed connection, the looks butt between reset spring and telescopic link and the curb plate, bear the fixed transverse antifriction pad B that is provided with in one side symmetry of frame, the inboard top of bearing the frame is provided with the guide rail.

Through adopting above-mentioned technical scheme, wind-resistant mechanism can make bridge skeleton A and bridge skeleton B resist horizontal wind, and after bridge skeleton A and bridge skeleton B take place to shift, wind-resistant mechanism can reduce bridge skeleton A and bridge skeleton B's displacement volume, prevents bridge skeleton A and bridge skeleton B dislocation and causes the bridge to damage, also can reduce wearing and tearing between each component, improves the holistic life of bridge.

As an alternative scheme of this application technical scheme, horizontal antifriction pad B and horizontal antifriction pad A contact each other and set up, horizontal antifriction pad A and horizontal antifriction pad B are rubber materials, bridge skeleton A slides and sets up in the inboard top of bearing frame.

Through adopting above-mentioned technical scheme, bridge skeleton A will take place the friction when taking place transverse displacement like this between transverse antifriction pad A and the transverse antifriction pad B, and replace the setting of expansion joint.

As an alternative scheme of this application file technical scheme, the road surface guide plate is fixed to be set up in the top of bearing frame, the bracket is all fixed to be set up in the bottom of bearing frame.

By adopting the technical scheme, the installation and the use of the bridge framework A are convenient.

As an alternative to the technical solution of the present application, the method includes the following steps:

s1, firstly, setting bracket and bearing rack to be completed, then fixing the bearing rack at the top end of the bracket, erecting a bridge skeleton A and a bridge skeleton B, paving a pavement main body into the inner side of a pouring area, fixedly connecting a bottom bearing support plate arranged at the bottom end of the bridge skeleton B with the bridge skeleton A through bearing bolts, manufacturing a connecting support A arranged between the bridge skeleton B and the bottom bearing support plate by using rubber, so that the bridge skeleton A can slightly deform, and simultaneously playing the roles of diffusion pressure and transmission pressure, and a wind through hole arranged at one side of the bridge skeleton A is convenient for transverse wind to blow through, so that the stability of the bridge skeleton A in use is improved;

s2, when the bridge framework A and the bridge framework B are subjected to transverse incoming wind with higher grades, the return spring and the telescopic rod in the wind-resistant mechanism on one side of the wind power are lengthened, the return spring and the telescopic rod on the other side are compressed, so that the influence of the wind power on the bridge framework A and the bridge framework B is reduced, the transverse antifriction pad A is rubbed with the transverse antifriction pad B, abrasion among various components is reduced, and the service life of the bridge can be prolonged;

s3, when the vehicle runs to the pavement main body at the top end of the bridge framework B, the gravity born by the position is transferred to the bracket through the stressed main beam in the reinforcing structure, so that the bearing capacity of the bridge framework B is enhanced, and in the running process of the vehicle, the gravity is transferred to the stressed main beam through the hanging beam and the stressed auxiliary beam through the pavement main body at the top end of the bridge framework A, so that the bearing capacity of the bridge framework A is enhanced, and the functions of the connecting support B, the connecting support C and the connecting support D play roles of diffusion pressure and transfer pressure, so that the vehicle is more stable in the running process, and the overall safety of the bridge is improved;

s4, the sliding column slides in the protective sleeve due to vibration generated during running of the vehicle, the long spring is compressed and then is in an original state, the process is repeated, the vibration generated during running of the vehicle is relieved, the protective sleeve and the sliding column are connected with the mounting table B and the mounting table A through universal joints, the use of the wind-resistant mechanism is not affected, the vibration-resistant mechanism can be used, the influence of vibration on the whole bridge is reduced, and the bridge can be used better.

3. Advantageous effects

One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:

1. according to the wind-resistant mechanism, the functions of reducing the transverse displacement and reducing the abrasion of components can be simultaneously exerted, through the arrangement of the wind-resistant mechanism, the bridge framework A and the bridge framework B can resist transverse incoming wind, after the bridge framework A and the bridge framework B are shifted, the displacement of the bridge framework A and the bridge framework B can be reduced by the wind-resistant mechanism, the bridge damage caused by dislocation of the bridge framework A and the bridge framework B is prevented, the abrasion among the components can be reduced, and the service life of the whole bridge is prolonged;

2. according to the method, through the arrangement of the reinforcing structure, the bearing capacity of the bridge framework B positioned in the middle is stronger, part of the gravity born by the bridge framework B is guided into the bracket for bearing, the effect of sharing the neutral is achieved, and the whole bearing capacity of the bridge is increased;

3. this application is through the setting of antidetonation mechanism, and antidetonation mechanism wherein has used the connected mode of universal joint, consequently can not influence the use of anti-wind mechanism, and antidetonation mechanism's setting can reduce the injury of vibrations to the bridge when receiving the vibrations that the vehicle was driven produced by bridge skeleton A and bridge skeleton B, and antidetonation mechanism can make bridge skeleton A and bridge skeleton B take place deformation to reduce the vibration power, makes the bridge can be better use.

Drawings

FIG. 1 is a schematic view of the overall structure of a single span seamless abutment-free bridge according to a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of an overall structure of an upper and lower axle-measurement of a single-span seamless abutment-free bridge according to a preferred embodiment of the present invention;

FIG. 3 is a schematic cross-sectional overall structure of a single span seamless abutment-free bridge according to a preferred embodiment of the present invention;

FIG. 4 is a schematic diagram showing a partially disassembled structure of a single span seamless abutment-free bridge according to a preferred embodiment of the present invention

FIG. 5 is a schematic view of a combination of a reinforcement structure and an earthquake-resistant structure in a single-span seamless abutment-free bridge according to a preferred embodiment of the present invention;

FIG. 6 is a schematic diagram showing the overall structure of a single span seamless abutment-free bridge according to a preferred embodiment of the present invention;

FIG. 7 is a schematic diagram showing a split structure of an anti-wind mechanism and a bridge skeleton A in a single-span seamless bridge without bridge abutment according to a preferred embodiment of the present invention;

FIG. 8 is a schematic diagram of a split overall structure of a medium seismic mechanism of a single span seamless bridgeless bridge according to a preferred embodiment of the present invention;

the reference numerals in the figures illustrate: 1. a bridge framework A; 101. a road surface main body; 102. a transverse antifriction pad A; 103. a wind hole; 104. pouring areas; 2. a bridge skeleton B; 201. the bottom is connected with a carrier plate; 202. the connecting support A; 203. a receiving bolt; 3. a road surface leading plate; 4. a reinforcing structure; 401. a main beam for bearing force; 4011. triangular grooves; 402. the connecting support B; 403. a hanging beam; 4031. triangular blocks; 404. the connecting support C; 405. connecting a seat cushion; 406. a pressure-bearing auxiliary beam; 407. the connecting support D; 408. a middle carrier plate; 409. a fastening bolt; 5. an anti-vibration mechanism; 501. a protective sleeve; 502. a spool; 503. a long spring; 504. a protective telescoping shield; 505. a mounting table A; 506. a mounting table B; 6. a bracket; 601. a carrying platform; 7. a carrier; 701. a side plate; 702. installing a bolt; 703. a guide rail; 704. a return spring; 705. a telescopic rod; 706. and a transverse antifriction pad B.

Detailed Description

The present application is described in further detail below in conjunction with the drawings attached to the specification.

Referring to fig. 1 and 2, an embodiment of the application discloses a single-span seamless bridge without bridge abutment and a use method thereof, wherein the single-span seamless bridge comprises a bridge framework A1, a bridge framework B2, a pavement slab guide 3, a reinforcing structure 4, an anti-seismic mechanism 5, brackets 6 and an anti-wind mechanism;

two bridge frameworks A1 are symmetrically arranged, and the bridge frameworks A1 are used for paving the pavement main body 101;

the bridge framework B2 is arranged between the two bridge frameworks A1, the bottom end of the bridge framework B2 is fixedly provided with a bottom bearing carrier plate 201 through a connecting support A202, the bottom bearing carrier plate 201 is fixedly connected with the bridge framework A1 through a bearing bolt 203, the bridge framework B2 is used for paving the pavement main body 101, and the bottom bearing carrier plate 201 is used for stably fixing the bridge framework B2 between the bridge frameworks A1 so as to be convenient for bearing;

the road surface guide plate 3, the road surface guide plate 3 is set up in the top side of the bridge skeleton A1, the road surface guide plate 3 is used for guiding the vehicle or pedestrian to travel on the top of the road surface main body 101;

the reinforcing structures 4 are arranged at the bottom ends of the bridge skeleton A1 and the bottom bearing carrier plate 201, a plurality of groups of reinforcing structures 4 are arranged on the reinforcing structures 4, and the reinforcing structures 4 are used for enhancing the bearing capacity of the bridge skeleton A1 and the bridge skeleton B2;

the anti-seismic mechanisms 5 are arranged at the bottom end of the reinforcing structure 4, the number of the anti-seismic mechanisms 5 is consistent with that of the reinforcing structure 4, and the anti-seismic mechanisms 5 are used for reducing vibration generated by vehicle running at the top ends of the bridge skeleton A1, the bridge skeleton B2 and the pavement main body 101;

the bracket 6 is arranged on one side below the bridge framework A1, the bracket 6 is arranged on one side of the reinforcing structure 4, the number of the bracket 6 is consistent with that of the reinforcing structure 4, the bottom end of the bracket 6 is fixedly provided with a bearing table 601, and the bracket 6 is used for integrally supporting the bridge and sharing the gravity borne by the bridge framework B2 in the bridge;

the wind-resistant mechanism, wind-resistant mechanism sets up in the both sides of road surface guide plate 3, wind-resistant mechanism is used for making between bridge skeleton A1 and the bridge skeleton B2 cooperate antifriction pad to reduce the friction between each component when receiving horizontal wind when the displacement reduces, and road surface guide plate 3 is fixed to be set up in the top of bearing frame 7, and bracket 6 is all fixed to be set up in the bottom of bearing frame 7.

The anti-wind mechanism can reduce the displacement of the bridge framework A1 and the bridge framework B2, prevent the bridge framework A1 and the bridge framework B2 from being damaged due to dislocation, reduce the abrasion among various components, improve the whole service life of the bridge, set up the reinforcing structure 4 to enable the bridge framework B2 in the middle to have stronger bearing capacity, guide partial gravity born by the bridge framework B2 into the bracket 6 to bear, achieve the effect of sharing the neutral, increase the whole load capacity of the bridge, set up of the anti-vibration mechanism 5 to reduce the damage of the bridge caused by vibration when the bridge framework A1 and the bridge framework B2 are subjected to vibration generated by vehicle driving, and the anti-vibration mechanism 5 to deform the bridge framework A1 and the bridge framework B2 to reduce the vibration force, so that the bridge can be better used.

Referring to fig. 2 and 4, pouring areas 104 are respectively formed at the top ends of the bridge frameworks A1 and B2, the pavement main body 101 is arranged at the inner side of the pouring areas 104, a plurality of air through holes 103 are respectively formed at one side of the bridge framework A1, the air through holes 103 penetrate through one side of the bridge framework A1, and transverse antifriction pads a102 are symmetrically and fixedly arranged at one sides, far away from each other, of the bridge framework A1.

The wind through hole 103 can be matched with an anti-wind mechanism, when wind passes through the wind through hole 103, the bridge framework A1 and the bridge framework B2 can have better stability, and shaking of the bridge framework A1 and the bridge framework B2 is reduced.

Referring to fig. 1 and 5, the reinforcement structure 4 further includes a stress main beam 401, a hanging beam 403 and a pressure-bearing auxiliary beam 406 are disposed at the top end of the stress main beam 401, the pressure-bearing auxiliary beam 406 is disposed in an inclined manner, the pressure-bearing auxiliary beam 406 is fixedly disposed at the bottom end of the bridge skeleton A1 through a connection support D407, a connection support C404 is fixedly disposed at the top end of the hanging beam 403, a connection seat cushion 405 is fixedly disposed at the top end of the connection support C404, a middle carrier plate 408 is fixedly disposed at one side of the top end of the stress main beam 401, a connection support B402 is fixedly disposed at one side of the bracket 6, the middle carrier plate 408 is fixedly disposed in the middle of the bottom end of the bottom bearing carrier plate 201, the connection seat cushion 405 is fixedly disposed at the bottom end of the bridge skeleton A1 through a fastening bolt 409, triangular blocks 4031 are disposed at the bottom ends of the hanging beam 403 and the pressure-bearing auxiliary beam 406, triangular blocks 4011 are disposed at positions corresponding to the triangular blocks 4031 at the top end of the stress main beam 401, and the triangular blocks 4031 are disposed inside the triangular blocks 4011.

When the vehicle runs to the road surface main body 101 at the top end of the bridge framework B2, gravity born by the position is transmitted to the bracket 6 through the stressed main beam 401 in the reinforcing structure 4, so that the bearing capacity of the bridge framework B2 is enhanced, and in the running process of the vehicle, the gravity is transmitted to the stressed main beam 401 through the hanging beam 403 and the bearing auxiliary beam 406 through the road surface main body 101 at the top end of the bridge framework A1, so that the bearing capacity of the bridge framework A1 is enhanced, and the functions of the connecting support B402, the connecting support C404 and the connecting support D407 play roles of diffusion pressure and transmission pressure, so that the vehicle is more stable in the running process, and the overall safety of the bridge is improved.

Referring to fig. 1 and 8, the anti-seismic mechanism 5 further includes a protection sleeve 501, a sliding column 502 is slidably disposed on the inner side of the protection sleeve 501, a long spring 503 is fixedly disposed at one end of the sliding column 502, the long spring 503 is fixedly disposed at one end of the inner side of the protection sleeve 501, a mounting table a505 is rotatably disposed at the other end of the sliding column 502, a mounting table B506 is rotatably disposed at one end of the protection sleeve 501, the mounting table B506 and the sliding column 502 are connected with the mounting table a505 through a universal joint, a protection telescopic cover 504 is fixedly disposed at the other end of the protection sleeve 501, the protection telescopic cover 504 is fixedly disposed at one end outer side of the sliding column 502, the mounting table a505 is fixedly disposed at the bottom end of the main bearing beam 401, the mounting table B506 is fixedly disposed at one side of the bracket 6, and the mounting table B506 is disposed below the connection support B402.

The vibrations that produce in the vehicle driving can make the strut 502 slide in the inside of protective sleeve 501, and long spring 503 can compress, then can be the original state, repeat this process for the vibrations that produce when the car was driven can slow down, and use the universal joint to be connected protective sleeve 501 and strut 502 with mount table B506 and mount table A505, do not influence the use of anti-wind mechanism, and also can make anti-vibration mechanism 5 can use, make the bridge wholly receive the influence reduction of vibrations, the bridge of being convenient for can better use.

Referring to fig. 3 and 7, the wind-resistant mechanism further includes a carrier 7, a plurality of return springs 704 and telescopic rods 705 are disposed on two sides of the carrier 7, the telescopic rods 705 are disposed on inner sides of the return springs 704, the return springs 704 and the telescopic rods 705 are fixedly disposed on two sides of the bridge skeleton A1, two sides of the carrier 7 are fixedly connected with the side plates 701 through mounting bolts 702, the return springs 704 and the telescopic rods 705 are abutted to the side plates 701, transverse antifriction pads B706 are symmetrically and fixedly disposed on one side of the carrier 7, guide rails 703 are disposed on inner side tops of the carrier 7, the transverse antifriction pads B706 and the transverse antifriction pads a102 are in contact with each other, the transverse antifriction pads a102 and the transverse antifriction pads B706 are made of rubber materials, and the bridge skeleton A1 is slidably disposed on inner side tops of the carrier 7.

When the bridge skeleton A1 and the bridge skeleton B2 are subjected to higher-level transverse incoming wind, the return spring 704 and the telescopic rod 705 in the wind-resistant mechanism on one side of the wind power are lengthened, the return spring 704 and the telescopic rod 705 on the other side are compressed to reduce the influence of the wind power on the bridge skeleton A1 and the bridge skeleton B2, and the transverse antifriction pad A102 is rubbed with the transverse antifriction pad B706, so that abrasion among various components is reduced, and the service life of the bridge can be longer.

The application method of the single-span seamless abutment-free bridge comprises the following steps:

s1, firstly, erecting bracket 6 and bearing platform 601, then fixing bearing frame 7 at the top end of bracket 6, erecting bridge skeleton A1 and bridge skeleton B2, paving pavement main body 101 into the inner side of pouring area 104, and fixing bottom bearing carrier 201 arranged at the bottom end of bridge skeleton B2 with bridge skeleton A1 through bearing bolts 203, wherein connecting support A202 arranged between bridge skeleton B2 and bottom bearing carrier 201 can be made of rubber, so that bridge skeleton A1 can slightly deform, and meanwhile, the effect of diffusion pressure and transmission pressure is achieved, and through-air hole 103 arranged at one side of bridge skeleton A1 is convenient for transverse air to blow through, so that stability of bridge skeleton A1 in use is improved;

s2, when the bridge framework A1 and the bridge framework B2 are subjected to higher-level transverse incoming wind, the reset spring 704 and the telescopic rod 705 in the wind-resistant mechanism on one side of the wind power are lengthened, the reset spring 704 and the telescopic rod 705 on the other side are compressed to reduce the influence of the wind power on the bridge framework A1 and the bridge framework B2, and the transverse antifriction pad A102 is rubbed with the transverse antifriction pad B706, so that abrasion among various components is reduced, and the service life of the bridge can be longer;

s3, when the vehicle runs to the pavement main body 101 at the top end of the bridge framework B2, the gravity born by the position is transmitted to the bracket 6 through the stress main beam 401 in the reinforcing structure 4 so as to strengthen the bearing capacity of the bridge framework B2, and in the running process of the vehicle, the gravity is transmitted to the stress main beam 401 through the hanging beam 403 and the pressure-bearing auxiliary beam 406 through the pavement main body 101 at the top end of the bridge framework A1 so as to strengthen the bearing capacity of the bridge framework A1, and the functions of the connecting support B402, the connecting support C404 and the connecting support D407 all play roles of diffusion pressure and transmission pressure, so that the vehicle is more stable in the running process, and the safety of the whole bridge is improved;

s4, the sliding column 502 slides in the protective sleeve 501 due to vibration generated during running of the vehicle, the long spring 503 is compressed and then returns to the original state, the process is repeated, the vibration generated during running of the vehicle is relieved, the protective sleeve 501 and the sliding column 502 are connected with the mounting table B506 and the mounting table A505 through universal joints, the use of the wind-resistant mechanism is not affected, the anti-vibration mechanism 5 can be used, the influence of vibration on the whole bridge is reduced, and the bridge can be used better conveniently.

Therefore, the wind-resistant mechanism can play the functions of reducing the transverse displacement and reducing the abrasion of the components, through the arrangement of the wind-resistant mechanism, the bridge framework A and the bridge framework B can resist transverse incoming wind, after the bridge framework A and the bridge framework B are shifted, the wind-resistant mechanism can reduce the shift amount of the bridge framework A and the bridge framework B, the bridge damage caused by the dislocation of the bridge framework A and the bridge framework B is prevented, the abrasion among the components can be reduced, and the service life of the whole bridge is prolonged.

Claims (10)

1. A single-span seamless abutment-free bridge is characterized in that: comprising: the bridge framework A, the bridge framework B, the pavement slab, the reinforcing structure, the anti-seismic mechanism, the bracket and the wind-resistant mechanism;

the bridge framework A is symmetrically provided with two bridge frameworks, and the bridge frameworks A are used for paving a pavement main body;

the bridge framework B is arranged between the two bridge frameworks A, a bottom bearing carrier plate is fixedly arranged at the bottom end of the bridge framework B through a connecting support A, the bottom bearing carrier plate is fixedly connected with the bridge framework A through bearing bolts, the bridge framework B is used for paving a pavement main body, and the bottom bearing carrier plate is used for stably fixing the bridge framework B between the bridge frameworks A so as to be convenient for bearing;

the road surface guide plate is arranged at one side of the top end of the bridge framework A and is used for guiding vehicles or pedestrians to travel at the top end of the road surface main body;

the reinforcing structures are arranged at the bottom ends of the bridge skeleton A and the bottom bearing carrier plate, and are provided with a plurality of groups, and the reinforcing structures are used for enhancing the bearing capacity of the bridge skeleton A and the bridge skeleton B;

the anti-seismic mechanisms are arranged at the bottom end of the reinforcing structure, the number of the anti-seismic mechanisms is consistent with that of the reinforcing structure, and the anti-seismic mechanisms are used for reducing vibration generated by running of vehicles at the top ends of the bridge framework A, the bridge framework B and the pavement main body;

the bracket is arranged on one side below the bridge framework A, is arranged on one side of the reinforcing structure, is consistent with the reinforcing structure in number, is fixedly provided with a bearing table at the bottom end, is used for integrally supporting the bridge and shares the gravity born by the bridge framework B in the bridge;

the wind resistance mechanism is arranged on two sides of the road surface guide plate, and is used for enabling the displacement between the bridge framework A and the bridge framework B to be reduced when the displacement is subjected to transverse wind, and simultaneously reducing friction between all components by being matched with the friction reducing pad.

2. The single span, seamless, abutment-free bridge of claim 1, wherein: the road surface main body is arranged on the inner side of the pouring area, a plurality of wind through holes are formed in one side of the bridge framework A, the wind through holes penetrate through one side of the bridge framework A, and transverse antifriction pads A are symmetrically and fixedly arranged on one sides, far away from each other, of the bridge framework A.

3. The single span, seamless, abutment-free bridge of claim 1, wherein: the reinforcing structure further comprises a stressed main beam, a hanging beam and a pressure-bearing auxiliary beam are arranged at the top end of the stressed main beam, the pressure-bearing auxiliary beam is obliquely arranged, the pressure-bearing auxiliary beam is fixedly arranged at the bottom end of the bridge framework A through a connecting support D, a connecting support C is fixedly arranged at the top end of the hanging beam, a connecting seat cushion is fixedly arranged at the top end of the connecting support C, and a middle carrier plate is fixedly arranged at one side of the top end of the stressed main beam.

4. A single span seamless abutment-free bridge according to claim 3, wherein: a connecting support B is fixedly arranged on one side of the stressed main beam, the connecting support B is fixedly arranged on one side of the bracket, the middle carrier plate is fixedly arranged in the middle of the bottom end of the bottom bearing carrier plate, the connecting seat cushion is fixedly arranged at the bottom end of the bridge framework A through a fastening bolt, triangular blocks are arranged at the bottom ends of the hanging beam and the pressure-bearing auxiliary beam, triangular grooves are formed in the positions, corresponding to the triangular blocks, of the top end of the stressed main beam, and the triangular blocks are arranged on the inner sides of the triangular grooves.

5. The single span, seamless, abutment-free bridge of claim 1, wherein: the anti-seismic mechanism further comprises a protection sleeve, a sliding column is arranged on the inner side of the protection sleeve in a sliding mode, a long spring is fixedly arranged at one end of the sliding column, the long spring is fixedly arranged at one end of the inner side of the protection sleeve, an installation table A is rotatably arranged at the other end of the sliding column, an installation table B is rotatably arranged at one end of the protection sleeve, the protection sleeve is connected with the installation table B and the sliding column and the installation table A through universal joints, a protection telescopic cover is fixedly arranged at the other end of the protection sleeve, and the protection telescopic cover is fixedly arranged at the outer side of one end of the sliding column.

6. The single span seamless abutment-free bridge according to claim 5, wherein: the mounting table A is fixedly arranged at the bottom end of the stressed main beam, the mounting table B is fixedly arranged at one side of the bracket, and the mounting table B is positioned below the connecting support B.

7. The single span, seamless, abutment-free bridge of claim 1, wherein: the wind-resistant mechanism further comprises a bearing frame, a plurality of reset springs and telescopic rods are arranged on two sides of the bearing frame, the telescopic rods are arranged on the inner sides of the reset springs, the reset springs and the telescopic rods are fixedly arranged on two sides of the bridge framework A, two sides of the bearing frame are fixedly connected with the side plates through mounting bolts, the reset springs and the telescopic rods are in butt joint with the side plates, transverse antifriction pads B are symmetrically and fixedly arranged on one side of the bearing frame, and guide rails are arranged on the top ends of the inner sides of the bearing frame.

8. The single span seamless abutment-free bridge according to claim 7, wherein: the transverse antifriction pad B and the transverse antifriction pad A are in contact with each other, the transverse antifriction pad A and the transverse antifriction pad B are made of rubber materials, and the bridge framework A is arranged at the top end of the inner side of the bearing frame in a sliding mode.

9. The single span, seamless, abutment-free bridge of claim 1, wherein: the road surface guide plate is fixedly arranged at the top end of the bearing frame, and the brackets are fixedly arranged at the bottom end of the bearing frame.

10. The method of using a single span seamless abutment-free bridge according to any one of claims 1-9, comprising the steps of:

s1, firstly, setting bracket and bearing rack to be completed, then fixing the bearing rack at the top end of the bracket, erecting a bridge skeleton A and a bridge skeleton B, paving a pavement main body into the inner side of a pouring area, fixedly connecting a bottom bearing support plate arranged at the bottom end of the bridge skeleton B with the bridge skeleton A through bearing bolts, manufacturing a connecting support A arranged between the bridge skeleton B and the bottom bearing support plate by using rubber, so that the bridge skeleton A can slightly deform, and simultaneously playing the roles of diffusion pressure and transmission pressure, and a wind through hole arranged at one side of the bridge skeleton A is convenient for transverse wind to blow through, so that the stability of the bridge skeleton A in use is improved;

s2, when the bridge framework A and the bridge framework B are subjected to transverse incoming wind with higher grades, the return spring and the telescopic rod in the wind-resistant mechanism on one side of the wind power are lengthened, the return spring and the telescopic rod on the other side are compressed, so that the influence of the wind power on the bridge framework A and the bridge framework B is reduced, the transverse antifriction pad A is rubbed with the transverse antifriction pad B, abrasion among various components is reduced, and the service life of the bridge can be prolonged;

s3, when the vehicle runs to the pavement main body at the top end of the bridge framework B, the gravity born by the position is transferred to the bracket through the stressed main beam in the reinforcing structure, so that the bearing capacity of the bridge framework B is enhanced, and in the running process of the vehicle, the gravity is transferred to the stressed main beam through the hanging beam and the stressed auxiliary beam through the pavement main body at the top end of the bridge framework A, so that the bearing capacity of the bridge framework A is enhanced, and the functions of the connecting support B, the connecting support C and the connecting support D play roles of diffusion pressure and transfer pressure, so that the vehicle is more stable in the running process, and the overall safety of the bridge is improved;

s4, the sliding column slides in the protective sleeve due to vibration generated during running of the vehicle, the long spring is compressed and then is in an original state, the process is repeated, the vibration generated during running of the vehicle is relieved, the protective sleeve and the sliding column are connected with the mounting table B and the mounting table A through universal joints, the use of the wind-resistant mechanism is not affected, the vibration-resistant mechanism can be used, the influence of vibration on the whole bridge is reduced, and the bridge can be used better.

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