CN111794071A

CN111794071A - Water conservancy bridge structure

Info

Publication number: CN111794071A
Application number: CN202010642585.2A
Authority: CN
Inventors: 王刚晴
Original assignee: Shanghai Chongming Water Conservancy Engineering Co ltd
Current assignee: Shanghai Chongming Water Conservancy Engineering Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2020-10-20

Abstract

The utility model relates to a water conservancy bridge structures, it includes the bridgehead side wall of two relative settings, establish abutment cap and the vertical underground of multiunit on the bridgehead side wall and be located two the pier stud of position between the bridgehead side wall still including establishing the basic unit backing plate that is close to its top on the pier stud, with pier stud top fixed connection's bent cap, with the top surface fixed connection's of bent cap damping support, the symmetry establish the earwall in bent cap both sides, with the perpendicular supporting beam who is connected of earwall, through damping support and bent cap fixed connection's bridge face attachment strap, along the waterproof bridgehead attachment of length direction's both sides respectively with abutment cap and bent cap, both sides respectively with bridge face attachment strap and waterproof bridgehead attachment's expansion joint, establish the automatic regulating ware on the abutment cap and overlap crashproof barrel and the guardrail on the pier stud. The water conservancy bridge that has solved among the correlation technique has the defect that security and durability are poor, has the security that makes the water conservancy bridge and the advantage that durability obtains improving.

Description

Water conservancy bridge structure

Technical Field

The application relates to the field of bridges, in particular to a water conservancy bridge structure.

Background

At present, in order to adapt to the modern high-speed developed traffic industry, bridges are used as buildings which span mountain stream, unfavorable geology or meet other traffic needs and are erected to enable traffic to be more convenient, and the functions of the bridges are more and more important.

And the requirement that the bridge among the hydraulic engineering compares in other bridges also is higher, and along with the development in city, the river-crossing bridge in the city is then more important. Referring to fig. 1, a water conservancy bridge structure in the related art mainly comprises a bridge abutment side wall 1, a bridge abutment cap 2, bridge piles 3, a support capping beam 4, a bridge plate 5 and a protective fence 6. These bridges often have damaged bridge structures due to water erosion, excessive traffic, bridge vibration or alternate dry and wet environments.

With respect to the related art in the above, the inventors consider that the bridge has a drawback of poor safety and durability.

Disclosure of Invention

In order to improve the security and the durability of bridge, this application provides a water conservancy bridge structures.

The application provides a water conservancy bridge structures adopts following technical scheme:

a water conservancy bridge structure comprises two relatively-arranged bridge head side walls, a cap arranged on the bridge head side walls, a plurality of groups of pier studs vertically embedded between the two bridge head side walls, a base layer base plate arranged on each pier stud and close to the top end of the pier stud, a cover beam fixedly connected with the top end of each pier stud, a damping support fixedly connected with the top surface of each cover beam, ear walls symmetrically arranged on two sides of each cover beam, a support beam vertically connected with the ear walls, a bridge face attachment plate fixedly connected with each cover beam through the damping support, a waterproof bridge head attachment plate respectively connected with the cap and the cover beam along two sides of the length direction, expansion joints respectively fixedly connected with the bridge face attachment plate and the waterproof bridge head attachment plate on two sides, an automatic regulator arranged on the cap, and an anti-collision barrel sleeved on each pier stud;

guardrails are arranged on two sides of the top surfaces of the bridge floor butt strap and the waterproof bridge head butt strap;

one end of the automatic regulator is fixedly connected with the waterproof bridgehead butt strap.

Through adopting above-mentioned technical scheme, elastic deformation can take place for basic unit's backing plate and elastic cushion layer homoenergetic, consequently, can adjust through basic unit's backing plate because of the deflection that expend with heat and contract with cold produced between bent cap and the pier stud, and can adjust through the expansion joint because of the deflection that expend with heat and contract with cold produced between bridge floor attachment plate and the bridgehead attachment plate, can prevent that bridge structures from taking place to damage, avoids causing the incident because of bridge structures damages. The damping support and the automatic regulator can play a protective role in the aspects of shock absorption and bridge deck shearing force resistance, and the bridge structure is prevented from being damaged. Finally, the anti-collision barrel can also prevent water flow from eroding the pier stud.

Preferably, a cross beam is arranged on the pier column along the horizontal direction.

Through adopting above-mentioned technical scheme, the setting up of crossbeam can support the pier stud of both sides, makes the connection between two adjacent pier studs more firm, and then makes the structural strength improvement of bridge.

Preferably, the hydrophilic surfaces of the bridge head side wall and the cover beam are provided with first waterproof layers.

By adopting the technical scheme, when the water level is changed rapidly, such as in the flood season of rivers, the first waterproof layer can prevent the bridge structure from being damaged by the alternate dry and wet environment generated by rising and falling of the water level.

Preferably, a plurality of structure holes are formed in the cover beam.

Through adopting above-mentioned technical scheme, the structure hole can let the rivers of perpendicular to bent cap direction pass through, can also reduce the internal stress of bent cap simultaneously, can prevent that the bent cap from damaging.

Preferably, the bent cap comprises an L-shaped beam fixedly connected with the top of the pier stud and a plate beam vertically and downwards arranged on the bottom surface of the L-shaped beam;

one of the surfaces of the plate girder abuts against the side surface of the pier stud.

Through adopting above-mentioned technical scheme, L type roof beam is as the main tributary supporting beam, and the side butt of plate beam and pier stud can strengthen the joint strength of the piece of bent cap and pier stud.

Preferably, the damping support comprises a bottom plate fixedly connected with the capping beam, a stand column vertically arranged on the top surface of the bottom plate in the middle, a damping body sleeved on the stand column, and a top plate arranged at the top of the stand column and fixedly connected with the bridge deck slab.

By adopting the technical scheme, the bottom plate, the top plate and the damping layer bear the weight of the bridge deck and the horizontal displacement function, and the upright column absorbs energy by plastic deformation when shearing deformation occurs in the damping layer. After the vibration occurs, the upright posts can automatically recover the original positions of the bridge floor lapping plates through the dynamic recovery and recrystallization processes and the action of the tension of the damping layer, so that the safety and the durability of the bridge are further improved.

Preferably, the upright post is provided with a plurality of layers of pressure-resistant plates, and the outer side of the damping body is provided with a protective layer.

Through adopting above-mentioned technical scheme, multilayer rubber support is separated into with the damping layer to the resistance to compression board, and when the stand when multilayer damping layer shear deformation, the shearing force that the damping layer in the damping support received can transmit downwards layer upon layer to make the anti-seismic performance of damping support better.

Preferably, waterproof bridgehead access plate includes with bent cap top surface fixed connection's substrate layer, establish the concrete bed course on the substrate layer, establish the medium grain formula asphalt concrete layer on the concrete bed course, establish the fine grain formula asphalt concrete layer on medium grain formula asphalt concrete layer and establish the second waterproof layer on fine grain formula asphalt concrete layer.

By adopting the technical scheme, the base material layer is used as a foundation structure of the waterproof bridge end butt strap, the concrete cushion layer is used as a reinforcing structure of the waterproof bridge end butt strap, the strength and high-temperature stability of the medium-grain asphalt concrete layer are good, and the waterproof performance of the fine-grain asphalt concrete layer is better arranged on the medium-grain asphalt concrete layer as a surface layer. In addition, the second waterproof layer further improves the waterproof performance of the waterproof bridge end butt strap.

Preferably, the thickness of the medium grain type asphalt concrete layer is thicker than that of the fine grain type asphalt concrete layer.

By adopting the technical scheme, the construction cost is reduced as far as possible while the quality of the bridge structure is met.

Preferably, the automatic regulator comprises two opposite pull rods arranged in the platform cap and the waterproof bridge head butt strap, a regulating sleeve connected with the two opposite pull rods in a sliding manner, a spring arranged in the regulating sleeve and a rubber filling layer filled in the regulating sleeve;

and two ends of the spring are respectively and fixedly connected with the oppositely arranged opposite pull rods.

Through adopting above-mentioned technical scheme, to pull rod and adjusting sleeve sliding connection, and the both ends of the intraductal spring of adjusting sleeve respectively with to pull rod fixed connection, when the bridgehead attachment strap takes place the displacement, slide to the adjusting sleeve in the pull rod on the bridgehead attachment strap, the spring plays the cushioning effect, avoids taking place hard collision and causes the damage of bridgehead attachment strap.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in this application, the deflection that produces because of expend with heat and contract with cold between bent cap and the pier stud can be adjusted through basic unit's backing plate, can prevent that bridge structures from taking place to damage, improves the security performance. Damping support and automatic regulator can play the guard action in the aspect of shock attenuation and anti bridge floor shearing force, avoid bridge structures to be damaged, moreover, the anticollision barrel can also prevent rivers to the erosion of pier stud, and security and durability have been improved in this application.

2. The bottom plate, the top plate and the damping layer bear the weight of the bridge deck and the horizontal displacement, and the vertical columns absorb energy by plastic deformation when shearing deformation occurs in the damping layer. After the vibration occurs, the upright columns can automatically restore the original positions of the bridge deck laps through the dynamic recovery and recrystallization processes and the action of the tension of the damping layer, so that the safety and the durability of the bridge are further improved;

3. when the bridge head butt strap is displaced, the counter pull rod on the bridge head butt strap slides towards the adjusting sleeve, the spring plays a buffering role, and the damage of the bridge head butt strap caused by hard collision is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a related art in the background of the present application.

Fig. 2 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 3 is a schematic structural view for illustrating a connection relationship between a bridge deck and a waterproof bridge head in an embodiment of the present application.

Fig. 4 is a schematic structural view of the capping beam and the support beam in the embodiment of the present application.

Fig. 5 is a schematic structural diagram for showing a damping mount in an embodiment of the present application.

FIG. 6 is a longitudinal cross-sectional view of a waterproof bridgehead template in an embodiment of the present application.

Fig. 7 is a schematic diagram for showing the structure of the automatic regulator in the embodiment of the present application.

Description of reference numerals: 1. abutment side walls, 2, abutment caps, 3, bridge piles, 4, supporting capping beams, 5, bridge decks, 6, guard rails, 11, abutment side walls, 12, abutment caps, 13, pier studs, 131, base mats, 21, capping beams, 22, damping supports, 23, ear walls, 31, supporting beams, 41, bridge deck shingles, 51, waterproof abutment shingles, 61, expansion joints, 71, automatic adjusters, 81, crash cylinders, 91, guardrails, 132, cross beams, 101, first waterproof layers, 24, structural holes, 211, L-beams, 212, plate beams, 221, bottom plates, 222, uprights, 223, damping bodies, 224, top plates, 225, compression plates, 226, protective layers, 511, base layers, 512, concrete cushions, 513, medium grain asphalt concrete layers, 514, fine grain asphalt concrete layers, 515, second waterproof layers, 711, tie rods, 712, adjusting sleeves, 713, springs, 714, and rubber filling layers.

Detailed Description

The present application is described in further detail below with reference to figures 2-7. It should be understood that the bridge deck of a general water conservancy bridge is easily damaged in an environment with alternate dry and wet conditions, or the bridge is damaged due to expansion and contraction caused by temperature difference change, or even the whole structure of the bridge is damaged due to large bridge deck traffic or bridge vibration, in addition, the pier stud is also abraded due to the impact of objects in water flow, and once the bridge structure is damaged, the safety and durability of the bridge structure are also deteriorated, and the water conservancy bridge structure disclosed by the embodiment of the application can improve the safety and durability of the bridge.

The embodiment of the application discloses water conservancy bridge structures. Referring to fig. 2 and 3, a water conservancy bridge structure mainly comprises a bridge head side wall 11, a cap 12, a pier 13, a capping beam 21, a damping support 22, a stud 23, a support beam 31, a bridge floor slab 41, a waterproof bridge head slab 51, an expansion joint 61, an automatic regulator 71, an anti-collision cylinder 81 and a guardrail 91.

Wherein, the abutment cap 12 is arranged on the abutment side wall 11. The pier stud 13 is multiunit, all vertically buries in the ground or the river course of the position between two bridgehead side walls 11 underground. The cap beam 21 is fixedly connected to the top end of the pier stud 13, and is used for supporting the bridge deck 41 and the bridge head 51. The damping support 22 is fixedly connected with the top surface of the cover beam 21, the ear walls 23 are symmetrically arranged on two sides of the cover beam 21, the supporting beam 31 is vertically connected with the ear walls 23, the bridge deck attachment plate 41 is fixedly connected with the cover beam 21 through the damping support 22, the waterproof bridge head attachment plate 51 is arranged along the length direction, and two sides of the waterproof bridge head attachment plate along the length direction are respectively connected with the table cap 12 and the cover beam 21. The two sides of the expansion joint 61 are respectively fixedly connected with the bridge deck slab 41 and the waterproof bridge head slab 51, the automatic regulator 71 is arranged on the platform cap 12, and one end of the automatic regulator 71 is fixedly connected with the waterproof bridge head slab 51. The anti-collision cylinder 81 is sleeved on the pier stud 13, and the guard rails 91 are arranged on the top surfaces of the bridge floor slab 41 and the waterproof bridge end slab 51 along the two sides of the width direction.

When the traffic volume on the bridge floor is large or the bridge has vibration, the vibration of the vehicle or the vibration of the bridge floor can be transmitted to the damping support 22 from the bridge floor, and the damping support 22 can play a role in buffering, and absorb partial energy through plastic deformation, so that the influence of the vibration on the bridge is reduced. The waterproof abutment plate 51 has a waterproof function, and therefore, the waterproof abutment plate 51 is prevented from being damaged in an alternate dry and wet environment. In addition, generally, the change of the water level is within a certain range, and the impact part of the object in the water flow on the pier stud 13 is basically unchanged, so that the pier stud 13 can be prevented from being damaged due to the protection of the anti-collision cylinder 81. Therefore, the water conservancy bridge structure that this application embodiment provided has improved the durability and the security of bridge.

Referring to fig. 2 and 3, the bridge head side walls 11 may be made of concrete and steel bars, and are disposed at two sides of the river channel and opposite to each other. One side of the top surface of the bridgehead side wall 11, which is close to the water flow direction, is provided with a rectangular groove for pouring a platform cap 12. The hydrophilic surface of the bridgehead side wall 11 is also provided with a first waterproof layer 101, the first waterproof layer 101 can be made of a fiber-reinforced waterproof coating 101, and the waterproof coating is coated on the hydrophilic surface of the bridgehead side wall 11. The damage to the bridgehead side wall 11 caused by the soaking and permeation of water to the bridgehead side wall 11 for a long time can be prevented.

The section of the table cap 12 can be L-shaped and is formed by pouring concrete, and the table cap 12 can be fixedly connected with the waterproof bridge head butt strap 51 after being mixed and solidified by the embedded steel bars and the concrete.

The pier columns 13 can be cast-in-place piles, in the embodiment of the present application, the pier columns 13 can be cylinders with a diameter of 0.6 meter and a length of 24 meters, and are manufactured by drilling and pouring concrete, at least every two pier columns 13 form a group and are arranged between the two bridge head side walls 11 at equal intervals, and generally, the interval between each group of pier columns 13 is 5.6 meters. In addition, the pier stud 13 is further provided with a base layer cushion plate 131 close to the top end of the pier stud, the base layer cushion plate 131 can be a C15 concrete cushion layer, and a rubber plate is further bonded on the top surface of the C15 concrete cushion layer, so that certain elastic deformation can be generated, the pier stud 13 and the cover beam 21 are connected more tightly, a buffering effect can be achieved, and the durability of the pier stud 13 is improved. In addition, a cross beam 132 is further arranged between every two adjacent pier columns 13 in the width direction of the bridge, the bridge is manufactured by installing a template and pouring concrete on the pier columns 13, and two ends of the cross beam 132 are fixedly connected with the two pier columns 13 respectively to play a role in supporting and reinforcing the bottom support of the bridge.

Referring to fig. 4, the capping beam 21 includes an L-shaped beam 211 and a plate beam 212, the L-shaped beam 211 is used as a main bearing component of the capping beam 21, a bottom surface of the L-shaped beam 211 is fixedly connected with a top surface of the pier stud 13, the plate beam 212 is vertically disposed downward, the L-shaped beam 211 is fixedly connected with a bottom surface of the L-shaped beam 211, and one surface of the plate beam 212 is fixedly connected with a side surface of the pier stud 13, and specifically, the L-shaped beam 211 and the plate beam 212 may be integrally cast. The bottom surface of the bent cap 21 is fixedly connected with the top end of the base 13 in a concrete pouring mode after being welded with the embedded steel bars through the tenons. The hydrophilic side of the lid beam 21, i.e. the surface that will often be in contact with water, is provided with a first water barrier 101. The first waterproof layer 101 may employ a fiber-reinforced waterproof coating material, which is coated on the hydrophilic surface of the capping beam 21. The damage to the capping beam 21 caused by the soaking and infiltration of water into the capping beam 21 for a long time can be prevented. In addition, a plurality of structural holes 24 are formed in the capping beam 21 to reduce erosion of water flow to both side surfaces of the capping beam 21 in the direction of the bridge deck, so that the capping beam 21 is more durable.

Referring to fig. 5, the damping mount 22 includes a bottom plate 221, a pillar 222, a damping body 223, a top plate 224, a multi-layer compression-resistant plate 225, and a shield layer 226. The bottom plate 221 may be a circular or rectangular plate made of a metal material, and the bottom plate 221 and the cover beam 21 may be fixedly connected by bolts or welding. Upright 222 is centrally vertically disposed on the top surface of base plate 221, which may be an aluminum mandrel. The damping body 223 is sleeved on the pillar 222, the top and bottom surfaces of the damping body 223 are fixedly connected with the top plate 224 and the bottom plate 221, respectively, and the top plate 224 may be made of a steel plate and is fixedly connected with the bottom surface of the deck slab 41. The damping body 223 can adopt high damping rubber formed by adding various additives into natural rubber, the damping body 233 is divided into laminated rubber by a plurality of layers of pressure resistant plates 225, the plurality of layers of pressure resistant plates 225 can adopt steel plates, the steel plates can play a role in restraining the damping body 223, so that the whole damping support 22 has high vertical bearing capacity, can bear the load of a building without generating excessive deformation in a normal use state and during the vibration of a bridge, and the protective layer 226 can be adhered on the outer side surface of the damping body 223 by adopting a rubber sleeve coated with waterproof paint, so that the multilayer pressure resistant plates 225 and the damping body 223 can be prevented from being aged and damaged in a dry-wet alternate environment.

Referring to fig. 4, the stud 23 and the capping beam 21 are integrally cast on both sides of the bridge deck in the width direction, and the stud 23 may be a trapezoidal concrete precast slab, which can play a role in safety and also can play a role in supporting the bridge deck slab 41 and the waterproof bridge head slab 51.

The support beam 31 is perpendicular to the ear wall 23, and the upper surface thereof abuts against the bottom surface of the waterproof bridge end attachment plate 51 to support the waterproof bridge end attachment plate 51. The bridge deck slab 41 may be a concrete precast slab, which is placed on the two capping beams 21 and fixedly connected with the damping support 22 by pre-buried steel bars and cushion blocks.

Referring to fig. 6, the waterproof bridge end attachment plate 51 includes a base material layer 511, a concrete cushion layer 512, a medium-grain asphalt concrete layer 513, a fine-grain asphalt concrete layer 514, and a second waterproof layer 515. The base material layer 511 may be a C15 concrete-based layer having a thickness of 0.1 m. The concrete cushion 512 can be a 0.3 m light concrete pouring layer, and the bottom surface thereof is fixedly connected with the base material layer 511 and can be used as a structural main body part of the waterproof bridge head attachment plate 51. The medium grain asphalt concrete layer 513 can be made of AC-20 mixture, the bottom surface thereof is fixedly connected with the concrete cushion 512, and the stone with the maximum grain diameter is 20 mm. The fine grain type asphalt concrete layer 514 can be made of AC-13C material and poured on the top surface of the medium grain type asphalt concrete layer 513. In addition, the thickness of the medium grain type asphalt concrete layer 513 is thicker than that of the fine grain type asphalt concrete layer 514, and generally, the thickness of the medium grain type asphalt concrete layer 513 is 60 mm, and the thickness of the fine grain type asphalt concrete layer 514 is 40 mm. The second waterproof layer 515 may be a water-based asphalt-based waterproof coating sprayed on the top surface of the fine-grained asphalt concrete layer 514, making the waterproof bridge end attachment plate 51 more durable.

Referring to fig. 1, the expansion joint 61 may be an 80-type comb-tooth bridge expansion joint, which mainly comprises a comb-tooth steel plate, a stainless steel sliding plate, a neoprene plate and an anchor bolt, and the arrangement of the expansion joint 61 can prevent the bridge structure from generating an excessive temperature stress due to thermal expansion and contraction and prevent the bridge structure from generating cracks.

Referring to fig. 2 and 3, the number of the automatic regulator 71 may be plural, and is provided on the table cap 12 in the width direction of the deck. Including a pair of tie rods 711, an adjustment sleeve 712, springs 713, and a rubber packing 714. The opposite pull rods 711 can be metal rods, and one of the two opposite pull rods 711 in the same automatic adjuster 71 is embedded in the platform cap 12, and the other is embedded in the waterproof bridge head butt strap 51. The adjusting sleeve 712 is sleeved on the opposite pull rod 711 and can slide along the opposite pull rod 711 in a reciprocating manner, and the adjusting sleeve 712 can be made of a metal pipe. The spring 713 is located in the adjusting sleeve 712, and both ends of the spring are fixedly connected to the ends of the two opposite pull rods 711, respectively, and the connection may be welding. A rubber packing layer 714 is packed in the adjustment sleeve 712 to increase damping and also to prevent moisture from entering the adjustment sleeve 712 to damage the spring 713, thereby enabling the automatic adjuster 71.

Referring to fig. 2 and 3, the anti-collision cylinder 81 can be made of steel cylinder and rubber, the steel cylinder is not easy to be damaged, and the rubber can play a role in buffering. The anti-collision barrel 81 is located at a common water level section on the pier stud 13, and can prevent objects in water flow from impacting the pier stud 13 to cause damage to a bridge structure.

The guardrail 91 can be a rectangular frame formed by welding pillars and crosspiece rods, and the bottom of the guardrail 91 is fixedly connected with the bridge floor butt strap 41 and the waterproof bridge head butt strap 51 in a bolt connection mode. That is, the bottoms of the guardrails 91 may be symmetrically installed on both sides of the deck slab 41 and the waterproof bridgehead slab 51 in the width direction of the deck by means of expansion bolts.

The implementation principle of a water conservancy bridge structure of the embodiment of the application is as follows:

firstly, when the traffic flow is large, the damping support 22 can bear the vertical bearing capacity, and bear the load of the building under the normal use state and when the bridge vibrates, and does not generate excessive deformation, so that the bridge structure is not easy to damage and is more durable.

Secondly, the automatic regulator 71 can automatically regulate the displacement amount when the waterproof abutment 51 is subjected to vibration and force generated when the vehicle is bridged from the ground, so that the stage cap 12 and the waterproof abutment 51 are not easily damaged. Then, the expansion joint 61 can prevent the bridge structure from being damaged by excessive temperature stress generated in the bridge structure due to expansion and contraction. Furthermore, the anti-collision barrel 81 can prevent the bridge structure from generating cracks and damaging the bridge pier due to the object in water flow, so that the safety and the durability of the bridge structure are improved.

Finally, in terms of waterproofing, the waterproof bridge end attachment plate 51 and the first waterproof layer 101 can prevent moisture in a dry and wet environment from damaging the bridge structure, so that the water conservancy bridge is more durable.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, 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

1. The utility model provides a water conservancy bridge structures, includes bridgehead side wall (11) of two relative settings, establishes abutment cap (12) and the vertical embedded two that are located of multiunit on bridgehead side wall (11) between pier stud (13) of position, its characterized in that: the anti-collision device is characterized by further comprising a base layer base plate (131) arranged on the pier column (13) and close to the top end of the pier column, a cover beam (21) fixedly connected with the top end of the pier column (13), a damping support (22) fixedly connected with the top surface of the cover beam (21), earwalls (23) symmetrically arranged on two sides of the cover beam (21), a supporting beam (31) vertically connected with the earwalls (23), a bridge floor (41) fixedly connected with the cover beam (21) through the damping support (22), a waterproof bridge head attachment plate (51) respectively connected with the abutment cap (12) and the cover beam (21) along two sides of the length direction, expansion joints (61) respectively fixedly connected with the bridge floor attachment plate (41) and the waterproof bridge head attachment plate (51) on two sides, an automatic regulator (71) arranged on the abutment cap (12) and an anti-collision barrel (81) sleeved on the pier column (13);

guardrails (91) are arranged on two sides of the top surfaces of the bridge deck butt strap (41) and the waterproof bridge head butt strap (51);

one end of the automatic regulator (71) is fixedly connected with the waterproof bridgehead butt strap (51).

2. The water conservancy bridge structure of claim 1, characterized in that: a cross beam (132) is arranged on the pier column (13) along the horizontal direction.

3. The water conservancy bridge structure of claim 1, characterized in that: and the hydrophilic surfaces of the bridgehead side wall (11) and the bent cap (21) are provided with first waterproof layers (101).

4. The water conservancy bridge structure of claim 1, characterized in that: the bent cap (21) is provided with a plurality of structure holes (24).

5. The water conservancy bridge structure of claim 1, 3 or 4, wherein: the bent cap (21) comprises an L-shaped beam (211) fixedly connected with the top of the pier stud (13) and a plate beam (212) vertically and downwards arranged on the bottom surface of the L-shaped beam (211);

one surface of the plate beam (212) is abutted against the side surface of the pier column (13).

6. The water conservancy bridge structure of claim 1, characterized in that: the damping support (22) comprises a bottom plate (221) fixedly connected with the cover beam (21), a vertical column (222) vertically arranged on the top surface of the bottom plate (221) in the middle, a damping body (223) sleeved on the vertical column (222), and a top plate (224) arranged at the top of the vertical column (222) and fixedly connected with the bridge deck slab (41).

7. The water conservancy bridge structure of claim 6, characterized in that: the vertical column (222) is provided with a plurality of layers of pressure-resistant plates (225), and the outer side of the damping body (223) is provided with a protective layer (226).

8. The water conservancy bridge structure of claim 1, characterized in that: waterproof bridgehead attachment (51) include with bent cap (21) top surface fixed connection's substrate layer (511), establish concrete bed course (512) on substrate layer (511), establish well grain formula asphalt concrete layer (513) on concrete bed course (512), establish fine grain formula asphalt concrete layer (514) on well grain formula asphalt concrete layer (513) and establish second waterproof layer (515) on fine grain formula asphalt concrete layer (514).

9. The water conservancy bridge structure of claim 8, characterized in that: the thickness of the medium-sized asphalt concrete layer (513) is thicker than that of the fine-sized asphalt concrete layer (514).

10. The water conservancy bridge structure of claim 1, characterized in that: the automatic regulator (71) comprises a pair of pull rods (711) arranged in a platform cap (12) and a waterproof bridge head butt strap (51), a regulating sleeve (712) connected with the two pair of pull rods (711) in a sliding manner, a spring (713) arranged in the regulating sleeve (712) and a rubber filling layer (714) filled in the regulating sleeve (712);

two ends of the spring (713) are respectively and fixedly connected with the oppositely arranged opposite pull rods (711).