CN113981793A

CN113981793A - Suspension type bridge

Info

Publication number: CN113981793A
Application number: CN202111011352.3A
Authority: CN
Inventors: 严爱国; 曾敏; 文望青; 刘诗文; 刘阳明; 饶少臣; 崔旸; 陈丽莎; 姜文恺; 张子尧; 张学强; 李书琼; 樊少彻; 马明; 李元俊; 王希
Original assignee: China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-28
Anticipated expiration: 2041-08-31
Also published as: CN113981793B

Abstract

The embodiment of the application provides a suspension type bridge, belongs to bridge technical field, and suspension type bridge includes track roof beam, first round pin axle, second round pin axle and pier. One end of each track beam is provided with a first mounting hole, the other end of each track beam is provided with a second mounting hole, each first pin shaft penetrates through the first mounting hole, each first pin shaft moves in the first mounting hole along the extending direction of the track beam, and the track beam is used for limiting the first pin shaft to rotate relative to the track beam. Each second pin shaft penetrates through the second mounting hole, and the track beam is used for limiting the second pin shafts to move relative to the track beam along the radial direction of the second pin shafts. The first hinge pin and the second hinge pin are arranged on the two pier lifting lugs in a spanning mode and are in opposite arrangement, the first hinge pin is rotatably connected with the pier lifting lugs, the pier lifting lugs limit the first hinge pin to move relative to the pier lifting lugs in the radial direction along the first hinge pin, and the pier lifting lugs limit the second hinge pin to move relative to the pier lifting lugs in the radial direction along the second hinge pin. The suspension type bridge of this application embodiment has improved the travelling comfort that the vehicle went.

Description

Suspension type bridge

Technical Field

The application relates to the technical field of bridges, in particular to a suspension type bridge.

Background

Suspension type single track mound roof beam can adopt the round pin hub connection also can adopt the support to connect, suspension type single track mound roof beam includes pier and the track roof beam that hangs on the pier usually among the correlation technique, the track roof beam passes through the round pin hub connection with the pier, the track roof beam has stiff end and expansion end usually, the stiff end of track roof beam is used for fixing with the pier and prevents the extending direction drunkenness of track roof beam along the track roof beam, the expansion end of track roof beam allows certain flexible deflection to the cold and hot deformation of release track roof beam. In the related art, when the movable end of the track beam moves telescopically relative to the bridge pier, the track beam may shift along the height direction of the track beam, which affects the driving comfort of the vehicle.

Disclosure of Invention

In view of this, the embodiments of the present application are expected to provide a suspension type bridge, so as to reduce the offset of the track beam along the height direction of the track beam, and improve the comfort of the vehicle during traveling.

To achieve the above object, the present application provides a suspended bridge, including:

the number of the track beams is multiple, at least two first mounting holes which are arranged oppositely along the transverse direction are formed at one end of each track beam along the extending direction of the track beam, and at least two second mounting holes which are arranged oppositely along the transverse direction are formed at the other end of each track beam along the extending direction of the track beam;

the number of the first pin shafts is at least one, each first pin shaft penetrates through two first mounting holes which are oppositely arranged, each first pin shaft can move in the extending direction of the track beam in the corresponding first mounting hole, and the track beam is used for limiting the corresponding first pin shaft to rotate relative to the track beam;

the number of the second pin shafts is at least one, each second pin shaft penetrates through two second mounting holes which are oppositely arranged, and the track beam is used for limiting the radial movement of the corresponding second pin shaft relative to the track beam along the second pin shaft; and

the first hinge pin and the second hinge pin are arranged in a crossing mode and are connected in a rotating mode, the first hinge pin is limited by the bridge lifting lugs, the first hinge pin is opposite to the bridge lifting lugs in the radial movement direction, and the second hinge pin is opposite to the bridge lifting lugs in the radial movement direction.

In one embodiment, the rail beam is located between two pier lifting lugs arranged transversely oppositely, and the first pin comprises:

the first rotation stopping shaft penetrates through the two first mounting holes which are oppositely arranged, can move in the extending direction of the track beam in the corresponding first mounting hole, and is used for limiting the first rotation stopping shaft to rotate relative to the track beam corresponding to the track beam; and

the two ends of the first rotation stopping shaft are connected with the first rotation shaft, and the first rotation shaft is connected with the corresponding bridge pier lifting lug in a rotating mode.

In one embodiment, the first anti-rotation shaft has a rectangular cross section, the first mounting hole has a rectangular cross section, and a span of the first mounting hole along the extending direction of the track beam is greater than a span of the first pin shaft along the extending direction of the track beam.

In one embodiment, the second pin includes:

the second rotation stopping shaft penetrates through the two second mounting holes which are oppositely arranged, the track beam is used for limiting the second rotation stopping shaft to rotate relative to the track beam, and the track beam is used for limiting the radial movement of the second pin shaft relative to the track beam along the second rotation stopping shaft; and

and the two ends of the second rotation stopping shaft are connected with the second rotation shaft, and the second rotation shaft is rotatably connected with the corresponding bridge pier lifting lug.

In one embodiment, the pier lug includes:

the pier lifting lug body is provided with rotation stopping holes and limiting parts, the rotation stopping holes are formed in one end of the first pin shaft and one end of the second pin shaft, two limiting parts which are oppositely arranged are arranged below each rotation stopping hole, an opening communicated with the rotation stopping holes is formed between the two limiting parts which are oppositely arranged, the first pin shaft can move into the rotation stopping holes through the corresponding openings, and the second pin shaft can move into the rotation stopping holes through the corresponding openings; and

the bearing device is installed in the corresponding rotation stopping hole, the limiting part is abutted to the lower side of the bearing device to prevent the bearing device from being separated from the rotation stopping hole through the opening, the first pin shaft is rotatably connected with the corresponding bearing device, the second pin shaft penetrates through the corresponding bearing device, the pier lifting lug body limits the bearing device to rotate relative to the pier lifting lug body, the pier lifting lug body limits the corresponding bearing device to move along the radial direction of the first pin shaft, and the pier lifting lug body limits the corresponding bearing device to move along the radial direction of the second pin shaft.

In one embodiment, the force bearing device comprises:

the supporting pad is positioned in the rotation stopping hole and is abutted against the upper part corresponding to the limiting part; and

the bearing assembly is located in the rotation stopping hole and abutted against the supporting pad, the top of the bearing assembly and the opposite two sides of the bearing assembly along the target direction are abutted against the pier lifting lug body, the rotation stopping hole and the arrangement direction of the openings are arranged in a manner of crossing the target direction, the first pin shaft is connected with the bearing assembly in a rotating manner, and the second pin shaft is arranged in a penetrating manner and corresponds to the bearing assembly.

In one embodiment, the messenger assembly includes:

the bearing table is positioned in the rotation stopping hole, the bearing table is installed above the supporting pad, the first pin shaft is rotatably connected with the corresponding bearing table, and the second pin shaft penetrates through the corresponding bearing table; and

the adjusting pad is arranged between the bearing platform and the supporting pads, between the top of the bearing platform and the pier lifting lug body and between the opposite two sides of the bearing platform along the target direction and the pier lifting lug body, the adjusting pad is arranged between the bearing platform and the supporting pads and abutted against the bearing platform and the supporting pads respectively, and the adjusting pad is arranged between the bearing platform and the pier lifting lug body and abutted against the bearing platform and the pier lifting lug body respectively.

In an embodiment, each of the rotation stopping holes is correspondingly provided with a stopping portion, the stopping portion corresponding to the first mounting hole is located on one side of the rotation stopping hole facing the first mounting hole, and the stopping portion corresponding to the second mounting hole is located on one side of the rotation stopping hole facing the second mounting hole.

In an embodiment, the pier lifting lug further comprises a sealing plate connected with the pier lifting lug body, and the sealing plates are arranged at two ends of the first pin shaft and two ends of the second pin shaft to prevent the first pin shaft and the second pin shaft from moving transversely.

In one embodiment, suspension type bridge still includes along two piece at least limiting plates and first slide of horizontal mutual disposition, every the limiting plate with correspond the track roof beam is connected, every the limiting plate is located at least partially to correspond the track roof beam corresponds along horizontal orientation one side of pier lug, every first slide is located to correspond the limiting plate with correspond between the pier lug, every first slide with correspond the pier lug is connected, the limiting plate with coefficient of friction between the first slide is less than the limiting plate with coefficient of friction between the pier lug.

In the suspension bridge of the embodiment of the application, because the first pin shaft is rotationally connected with the pier lifting lugs, the track beam limits the first pin shaft to rotate relative to the track beam, the pier lifting lugs limit the first pin shaft to move relative to the pier lifting lugs along the radial direction of the first pin shaft, no matter the track beam extends along the horizontal direction or the track beam is positioned on a slope, the extending direction of the track beam forms a certain included angle with the horizontal direction, the extending direction of the corresponding first mounting hole on the track beam always keeps the same as the extending direction of the track beam, so that the moving direction of the first pin shaft in the first mounting hole always keeps the same as the extending direction of the track beam, the first pin shaft is limited by the pier lifting lugs and cannot move along the radial direction of the first pin shaft, and therefore, no matter the track beam extends along the horizontal direction or the track beam upwards makes the extending direction of the track beam and the horizontal direction form a certain included angle, when the track beam is affected by cold and hot stretching, the first pin shaft moves in the first mounting hole, the track beam cannot be raised or sunk along the height direction of the track beam, the driving comfort of a vehicle can be improved to a certain degree, the first mounting hole does not need to be adjusted according to the extending direction of the track beam, the first mounting hole can be machined in a unified mode, and batch production of the track beam is facilitated. First round pin axle rotates with the pier lug to be connected, can both rotate certain angle between track roof beam and the pier lug to make track roof beam can change the extending direction according to actual need, and need not change the structure of pier lug, be favorable to the unified processing batch production of pier. The first round pin axle of pier lug restriction is for the radial displacement of pier lug along first round pin axle, the radial displacement of pier lug restriction second round pin axle along the second round pin axle for the pier lug, the track roof beam restriction second round pin axle is for the radial displacement of track roof beam along the second round pin axle, first round pin axle can move along the extending direction of track roof beam in first mounting hole, make the one end of track roof beam along the extending direction's of track roof beam removal by the pier restriction, can prevent track roof beam drunkenness comparatively effectively, the track roof beam receives the flexible deformation of cold and hot can release through the removal of first round pin axle in first mounting hole again.

Drawings

Fig. 1 is a schematic structural view of a suspended bridge according to the related art, which illustrates that the moving direction of a corresponding pin in a movable hole of a pier lifting lug is arranged to cross the extending direction of a track beam;

fig. 2 is a structural view illustrating a suspended bridge according to the related art, in which the moving direction of a corresponding pin in a movable hole of a pier shackle is substantially along the extending direction of a rail girder;

fig. 3 is an assembly view of a track girder and a pier according to an embodiment of the present application;

FIG. 4 is an exploded view of a suspended bridge according to an embodiment of the present application;

FIG. 5 is a front view of a suspended bridge according to an embodiment of the present application;

FIG. 6 is a cross-sectional view taken at location A-A of FIG. 5;

FIG. 7 is an enlarged view at position B in FIG. 6;

fig. 8 is a schematic diagram of a first pin being installed in a first mounting hole and a second pin being installed in a second mounting hole according to an embodiment of the present application.

Description of reference numerals: a track beam 1; a first mounting hole 11; a second mounting hole 12; a beam body 13; a first beam shackle 14; a beam lug body 141; a second slide plate 142; a second beam lifting lug 15; a first pin shaft 2; a first rotation stop shaft 21; a first rotating shaft 22; a second pin shaft 3; a second whirl-stop shaft 31; a second rotation shaft 32; pier lifting lugs 41; pier lifting lug bodies 411; a rotation stop hole 4111; a stopper 4112; an opening 41113; a force-bearing device 412; a support pad 4121; a force-bearing component 4122; a bearing table 41221; an adjustment pad 41222; a stopper 413; a closure plate 414; a limiting plate 5; a first slide 6; a movable hole 100.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the embodiments of the present application, "upper", "lower", "top", "bottom", orientation or positional relationship is based on the orientation or positional relationship shown in fig. 5, it being understood that these orientation terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application. Referring to fig. 5, the up-down direction is a direction indicated by an arrow R1 in the drawing.

In the description of the embodiments of the present application, the lateral direction is based on the orientation and positional relationship shown in fig. 6, and the lateral direction is the direction indicated by the arrow R2 in the drawing with reference to fig. 6.

Before describing the embodiments of the present application, it is necessary to analyze the reason why the track beam is shifted along the height direction of the track beam in the related art, and obtain the technical solution of the embodiments of the present application through reasonable analysis.

In the related art, referring to fig. 1, a suspended bridge generally includes a bridge pier and a track beam 1 suspended on the bridge pier, the bridge pier includes a bridge pier body and a bridge pier lifting lug 41 connected to the bridge pier body, one end of the track beam 1 is fixedly connected to the bridge pier lifting lug 41 through a corresponding pin, the corresponding pin does not move relative to the lifting lug, generally speaking, at least one end of the track beam 1 is fixedly connected to the bridge pier through a pin to prevent the track beam from moving, the other end of the track beam 1 is installed in a movable hole 100 of the bridge pier lifting lug 41 through a corresponding pin, the movable hole 100 on the bridge pier lifting lug 41 does not rotate along with the track beam 1, the moving direction of the corresponding pin in the movable hole 100 of the bridge pier lifting lug 41 does not change, when the extending direction of the track beam 1 changes, for example, the extending direction of the track beam 1 changes, and a part of the track beam 1 extends along a horizontal direction, part of the track beam 1 is positioned on the slope, so that the extending direction of the track beam 1 forms a certain angle with the horizontal direction, all the movable holes 100 of the bridge pier lifting lugs 41 extend along the horizontal direction, and the corresponding pin shafts move in the movable holes 100 along the horizontal direction, for the track beam 1 on the slope, as the moving direction of the pin shafts in the movable holes 100 is different from the extending direction of the track beam 1, the track beam 1 on the slope is influenced by cold and hot expansion and contraction to push the corresponding pin shafts to horizontally move in the movable holes 100, and the track beam 1 can be lifted up or sunk for a certain distance along the height direction of the track beam 1, so that the driving comfort of a vehicle is influenced. It should be noted that the height direction of the track beam 1 is perpendicular to the lateral direction and the extending direction of the track beam 1, and the vehicle travels substantially along the extending direction of the track beam 1. Referring to fig. 1, the extending direction of the track beam 1 is the arrangement direction of two adjacent track beams 1 on a slope, i.e. the direction indicated by an arrow R4; in the figure, the height direction of the track beam 1 is perpendicular to the extending direction of the track beam 1, that is, the direction indicated by an arrow R3 in the figure, and it can be seen from the figure that when the track beam 1 on the right side is stretched and contracted by cold and heat deformation to push the corresponding pin shaft to move horizontally to the left in the movable hole 100 of the pier, the track beam 1 on the right side is raised by a certain distance h along the height direction of the track beam 1, which affects the driving comfort of the vehicle.

Referring to fig. 2, when the extending direction of the movable hole 100 of the track beam 1 is the same as the extending direction of the track beam 1 on the slope, the moving direction of the corresponding pin in the movable hole 100 is the same as the extending direction of the track beam 1, the direction indicated by the arrow R4 in the figure is the extending direction of the track beam 1, the moving direction of the corresponding pin in the movable hole 100 in the figure is the same as the direction indicated by the arrow R4, when the right track beam 1 in the figure is heated and elongated to push the corresponding pin to move in the movable hole 100, the right track beam 1 will not be raised or lowered along the height direction of the track beam 1, and the height direction of the track beam 1 in the figure is the direction indicated by the arrow R3. However, in fig. 2, the arrangement manner of the extending direction of the movable holes 100 makes the moving direction of the pin have a certain included angle with the horizontal direction, when a part of the track beam 1 is not located on a slope but horizontally extends, that is, the extending direction of the track beam 1 is the horizontal direction, the track beam 1 is pushed by the cold and hot stretching to move the corresponding pin in the movable hole 100 along the direction forming a certain included angle with the horizontal direction, so that the horizontally extending track beam 1 is raised or sunk along the height direction of the track beam 1, which affects the driving comfort of the vehicle.

It can be seen from the above solution that, as the track beam 1 changes continuously in the extending direction, for example, the track beam 1 extends horizontally for a certain distance and then extends for a certain distance along a slope, the movable hole 100 on the corresponding pier suspending the track beam 1 needs to change continuously with the change of the extending direction of the track beam 1, so that the moving direction of the corresponding pin in the movable hole 100 is substantially consistent with the extending direction of the track beam 1, and it can be ensured that the track beam 1 is not raised or lowered along the height direction of the track beam 1. In this way, the movable holes 100 of the pier lugs 41 at different positions may be differently manufactured, and the pier lugs 41 corresponding to different positions are all customized for the corresponding positions, so that the manufacturing cost of the pier is high.

In view of this, the present embodiment provides a middle suspension type bridge, please refer to fig. 3 and 4, the suspension type bridge includes a track beam 1, a first pin 2, a second pin 3, and a bridge pier.

In an embodiment, referring to fig. 3 to 5, the number of the track beams 1 is multiple, a pier is disposed at one end of each two adjacent track beams 1, and the track beams 1 are suspended on the pier through the first pin 2 and/or the second pin 3.

It is understood that the number of the track beams 1 may be set according to actual conditions, and the number of the track beams 1 is not particularly limited.

In one embodiment, the number of the second pins 3 is at least one.

It is understood that the number of the first pins 2 and the number of the second pins 3 may be determined according to actual requirements.

In an embodiment, referring to fig. 3 to 5, at least two first mounting holes 11 are formed at one end of each track beam 1 along the extending direction of the track beam 1, and at least two second mounting holes 12 are formed at the other end of each track beam 1 along the extending direction of the track beam 1. Every first round pin axle 2 runs through two first mounting holes 11 of mutual disposition, and the one end of track roof beam 1 hangs in the pier through first round pin axle 2. Each second pin shaft 3 penetrates through the two second mounting holes 12 which are oppositely arranged, and the other end of the track beam 1 is suspended on a pier through the second pin shaft 3.

In one embodiment, please refer to fig. 6, the transverse direction is the width direction of the track beam 1.

In an embodiment, referring to fig. 3 to 5, each first pin 2 can move in the corresponding first mounting hole 11 along the extending direction of the track beam 1, and the track beam 1 is used for limiting the corresponding first pin 2 to rotate relative to the track beam 1. Thus, when the extending direction of the track beam 1 changes, the moving direction of the first pin 2 in the first mounting hole 11 changes correspondingly, so that the moving direction of the first pin 2 in the first mounting hole 11 can be always kept substantially consistent with the extending direction of the track beam 1.

In one embodiment, referring to fig. 3 to 5, the track beam 1 is used to limit the corresponding second pin 3 from moving radially relative to the track beam 1 along the pin.

In an embodiment, referring to fig. 3 to 6, the track beam 1 includes a beam body 13, a first beam lifting lug 14, and a second beam lifting lug 15. The first beam lifting lug 14 is connected to one end of the beam body 13, the beam body 13 is provided with the first beam lifting lug 14 along two transversely opposite sides, and the first beam lifting lug 14 on each side is provided with a first mounting hole 11. The second beam lifting lug 15 is connected to the other end of the beam body 13, the beam body 13 is provided with the second beam lifting lug 15 along two transversely opposite sides, and the second beam lifting lug 15 on each side is formed with a second mounting hole 12.

In one embodiment, the beam body 13, the first beam lifting lug 14 and the second beam lifting lug 15 are integrally formed.

In one embodiment, the beam body 13 is welded to the first beam lifting lug 14 and the second beam lifting lug 15, respectively.

In one embodiment, referring to fig. 5 and 6, the transverse direction is the width direction of the beam 13.

In an embodiment, referring to fig. 5 to 8, the first beam lifting lug 14 includes a beam lifting lug body 141 and a second sliding plate 142 connected to each other, the first mounting hole 11 is formed in the beam lifting lug body 141, the predetermined direction is perpendicular to the moving direction of the first pin 2 in the first mounting hole 11, the second sliding plate 142 is disposed on two opposite sides of the first mounting hole 11 along the predetermined direction, and the first pin 2 penetrates through the first mounting hole 11 and abuts against the second sliding plate 142. The friction coefficient between the first pin shaft 2 and the second sliding plate 142 is smaller than that between the first pin shaft 2 and the beam lifting lug body 141, so that the abrasion of the first pin shaft 2 is reduced.

In one embodiment, the second slider 142 is a tetrafluoro slider.

It can be understood that the second sliding plate 142 is not limited to a tetrafluoro sliding plate, and the abrasion of the first pin 2 can be reduced as long as the material of the second sliding plate 142 enables the friction coefficient between the first pin 2 and the second sliding plate 142 to be smaller than the friction coefficient between the first pin 2 and the beam lug body 141.

In an embodiment, referring to fig. 8, the second pin 3 is disposed through the second mounting hole 12, and a certain assembly gap is reserved between the hole wall of the second mounting hole 12 and the second pin 3.

It should be noted that, the assembly gap is usually small, so that the second pin shaft 3 can not move substantially along the radial direction of the second pin shaft 3 in the second mounting hole 12, and the assembly gap is set only to enable the second pin shaft 3 to pass through the second mounting hole 12 smoothly in the process that the second pin shaft 3 passes through the second mounting hole 12, which is convenient for the second pin shaft 3 to be mounted.

In an embodiment, an assembly gap may not be reserved between the hole wall of the second mounting hole 12 and the second pin 3, and the hole wall of the second mounting hole 12 abuts against the second pin 3.

In an embodiment, referring to fig. 3 to 8, in two adjacent track beams 1, one end of one track beam 1, which is formed with the first mounting hole 11, is close to one end of the other track beam 1, which is formed with the second mounting hole 12.

In one embodiment, one end of the two adjacent track beams 1, where the first mounting hole 11 is formed, is close to one end of the other track beam 1, where the first mounting hole 11 is formed.

In one embodiment, one end of the two adjacent track beams 1, where the second mounting hole 12 is formed, is close to one end of the other track beam 1, where the second mounting hole 12 is formed.

In one embodiment, referring to fig. 4 and 8, the first mounting hole 11 has a rectangular cross-sectional shape.

In one embodiment, referring to fig. 4 and 8, the second mounting hole 12 has a rectangular cross-sectional shape.

In an embodiment, please refer to fig. 3 and fig. 4, each bridge pier includes a pier body and at least two bridge pier lifting lugs 41 arranged transversely and oppositely, the pier body is connected to the bridge pier lifting lugs 41, the first pin 2 and the second pin 3 are both spanned between the two bridge pier lifting lugs 41 arranged oppositely, the first pin 2 is rotatably connected to the bridge pier lifting lugs 41, the bridge pier lifting lugs 41 limit the first pin 2 to move radially along the first pin 2 relative to the bridge pier lifting lugs 41, and the bridge pier lifting lugs 41 limit the second pin 3 to move radially along the second pin 3 relative to the bridge pier lifting lugs 41. In such a structural form, because the first pin shaft 2 is rotatably connected with the pier lug 41, the track beam 1 limits the first pin shaft 2 to rotate relative to the track beam 1, the pier lug 41 limits the first pin shaft 2 to move relative to the pier lug 41 along the radial direction of the first pin shaft 2, no matter the track beam 1 extends along the horizontal direction or the track beam 1 is positioned on a slope, the extending direction of the track beam 1 and the horizontal direction form a certain included angle, the extending direction of the corresponding first mounting hole 11 on the track beam 1 is always kept the same as the extending direction of the track beam 1, so that the moving direction of the first pin shaft 2 in the first mounting hole 11 is always kept the same as the extending direction of the track beam 1, the first pin shaft 2 is limited by the pier lug 41 and cannot move along the radial direction of the first pin shaft 2, therefore, no matter the track beam 1 extends along the horizontal direction or the track beam 1 is positioned on the slope, the extending direction of the track beam 1 and the horizontal direction form a certain included angle, when the track beam 1 is affected by the cold and hot stretching, the first pin shaft 2 moves in the first mounting hole 11, the track beam 1 cannot be raised or sunk along the height direction of the track beam 1, the comfort of vehicle running can be improved to a certain extent, the first mounting hole 11 does not need to be adjusted according to the extending direction of the track beam 1, the first mounting hole 11 can be processed in a unified mode, and the batch production of the track beam 1 is facilitated. First round pin axle 2 rotates with pier lug 41 and is connected, can both rotate certain angle between track roof beam 1 and the pier lug 41 to make track roof beam 1 can change the extending direction according to actual need, and need not change the structure of pier lug 41, be favorable to the unified processing batch production of pier. The pier lifting lugs 41 limit the first pin shaft 2 to move relative to the pier lifting lugs 41 along the radial direction of the first pin shaft 2, the pier lifting lugs 41 limit the second pin shaft 3 to move relative to the pier lifting lugs 41 along the radial direction of the second pin shaft 3, the track beam 1 limits the second pin shaft 3 to move relative to the track beam 1 along the radial direction of the second pin shaft 3, the first pin shaft 2 can move in the first mounting hole 11 along the extending direction of the track beam 1, so that the movement of one end of the track beam 1 along the extending direction of the track beam 1 is limited by the pier lifting lugs 41, the track beam 1 can be effectively prevented from moving, and the track beam 1 can be released after being subjected to cold and heat telescopic deformation through the first pin shaft 2 moving in the first mounting hole 11.

Illustratively, the track girder 1 may be extended in a horizontal direction, and when the track girder 1 is positioned on a slope, the track girder 1 may be rotated at an angle with respect to the abutment lugs 41 such that the extending direction of the track girder 1 is at an angle with respect to the horizontal direction, so that the track girder 1 extends along the slope, and the structure of each abutment lug 41 does not substantially need to be changed.

In an embodiment, a portion of the bridge pier lifting lug 41 for mounting the first pin 2 and a portion for mounting the second pin 3 may be separately manufactured, and then the portion for mounting the first pin 2 and the portion for mounting the second pin 3 are mounted on a pier body of the bridge pier.

In one embodiment, the pier body and the pier lug 41 may be integrally formed.

In an embodiment, referring to fig. 4 and 5, the lifting lug 41 includes a lifting lug body 411 and a force-bearing device 412. Force bearing device 412 is installed in pier shackle body 411.

In an embodiment, please refer to fig. 4 and 5, a rotation stop hole 4111 and a limiting portion 4112 are formed in the pier lifting lug body 411, the rotation stop hole 4111 is formed at one end of the first pin shaft 2 and one end of the second pin shaft 3, two limiting portions 4112 are disposed below each rotation stop hole 4111, an opening 41113 communicated with the rotation stop hole 4111 is defined between the two limiting portions 4112, the first pin shaft 2 can move into the rotation stop hole 4111 through the corresponding opening 41113, and the second pin shaft 3 can move into the rotation stop hole 4111 through the corresponding opening 41113. The force bearing devices 412 are installed in the corresponding rotation preventing holes 4111, the limiting portions 4112 abut against the lower portions of the force bearing devices 412 to prevent the force bearing devices 412 from being separated from the rotation preventing holes 4111 from the openings 41113, the first pin shaft 2 is rotatably connected with the corresponding force bearing devices 412, the second pin shaft 3 penetrates through the corresponding force bearing devices 412, the pier lifting lug body 411 limits the force bearing devices 412 to rotate relative to the pier lifting lug body 411, the pier lifting lug body 411 limits the corresponding force bearing devices 412 to move along the radial direction of the first pin shaft 2, and the pier lifting lugs 41 limit the corresponding force bearing devices 412 to move along the radial direction of the second pin shaft 3. In this structure, during the installation process, the first pin shaft 2 may be installed in the first installation hole 11, the second pin shaft 3 may be installed in the second installation hole 12, the track beam 1, the first pin shaft 2 and the first pin shaft 2 are moved up together, so that the first pin shaft 2 enters the corresponding rotation-stopping hole 4111 through the corresponding opening 41113, the second pin shaft 3 enters the corresponding rotation-stopping hole 4111 through the corresponding opening 41113, and then the force-bearing device 412 is installed in the rotation-stopping hole 4111, so that the first pin shaft 2 and the second pin shaft 3 are both inserted into the force-bearing device 412, and the movement of the force-bearing device 412 relative to the pier lifting lug body 411 is restricted by the pier lifting lug body 411, thereby restricting the movement of the first pin shaft 2 and the second pin shaft 3 relative to the pier lifting lug body 411. Install first round pin axle 2 and second round pin axle 3 in the first mounting hole 11 and the second mounting hole 12 that correspond earlier for first round pin axle 2 and second round pin axle 3 are installed on track roof beam 1, again with track roof beam 1, first round pin axle 2 and second round pin axle 3 get into through opening 41113 and stop the mounting means who revolves hole 4111 in order to realize track roof beam 1 and pier lug body 411's connection, it is comparatively convenient to make the installation between track roof beam 1 and pier lug body 411, need not be under track roof beam 1 is in the state of lifting by crane, lift by crane first round pin axle 2 and second round pin axle 3 again and wear to locate pier lug body 411 and track roof beam 1 and install, the complexity of installation has been reduced.

In an embodiment, referring to fig. 4 and 5, two limiting portions 4112 below each rotation-stopping hole 4111 are oppositely arranged along the extending direction of the track beam 1.

In an embodiment, referring to fig. 4 and fig. 5, the corresponding force-bearing device 412 limits the first pin 2 to move relative to the corresponding force-bearing device 412 along the radial direction of the first pin 2, and the corresponding force-bearing device 412 limits the second pin 3 to move relative to the corresponding force-bearing device 412 along the radial direction of the second pin 3.

In an embodiment, the opening 41113 may not be provided, the first pin 2 penetrates the rotation stopping hole 4111 and the first mounting hole 11 along the axial direction corresponding to the rotation stopping hole 4111, the second pin 3 penetrates the rotation stopping hole 4111 and the second mounting hole 12 along the axis corresponding to the rotation stopping hole 4111, the first pin 2 is sleeved with the corresponding force bearing device 412, the second pin 3 is sleeved with the corresponding force bearing device 412, and therefore the track beam 1 is suspended on the pier lifting lug body 411.

In an embodiment, the opening 41113 and the force-bearing device 412 may not be provided, the first pin 2 is rotatably connected to the pier lug body 411, the pier lug body 411 limits the radial movement of the first pin 2 along the first pin 2, the second pin 3 penetrates the pier lug body 411, and the pier lug body 411 limits the radial movement of the second pin 3 along the second pin 3.

In one embodiment, referring to fig. 4 and 5, the force-bearing device 412 includes a supporting pad 4121 and a force-bearing component 4122, the supporting pad 4121 is located in the rotation-stopping hole 4111, and the supporting pad 4121 abuts against the upper portion of the corresponding limiting portion 4112. The force bearing component 4122 is located in the rotation stopping hole 4111, the force bearing component 4122 abuts above the supporting pad 4121, opposite sides of the top of the force bearing component 4122 and opposite sides of the force bearing component 4122 along the target direction both abut against the pier lifting lug body 411, the arrangement direction of the rotation stopping hole 4111 and the opening 41113 is crossed with the target direction, the first pin shaft 2 is rotatably connected with the corresponding force bearing component 4122, and the second pin shaft 3 penetrates through the corresponding force bearing component 4122. With the structure, the corresponding force bearing component 4122 can be sleeved on the first pin shaft 2, the corresponding force bearing component 4122 can be sleeved on the second pin shaft 3, and then the supporting pad 4121 is installed between the force bearing component 4122 and the limiting portion 4112, so that the supporting pad 4121 clamps the force bearing component 4122 in the rotation stopping hole 4111, and the force bearing device 412 can be installed conveniently.

In one embodiment, the support pad 4121 is block-shaped.

In an embodiment, the supporting pad 4121 may not be provided, and the force bearing component 4122 abuts on the limiting portion 4112.

In one embodiment, referring to fig. 4, 6 and 7, the force-bearing assembly 4122 includes a force-bearing table 41221 and an adjustment pad 41222. The bearing platform 41221 is positioned in the rotation stopping hole 4111, the bearing platform 41221 is installed above the supporting pad 4121, the first pin shaft 2 is rotatably connected with the corresponding bearing platform 41221, and the second pin shaft 3 penetrates through the corresponding bearing platform 41221. Adjusting pads 41222 are arranged between the bearing platform 41221 and the supporting pad 4121, between the top of the bearing platform 41221 and the pier lifting lug body 411, and between two opposite sides of the bearing platform 41221 along the target direction and the pier lifting lug body 411, and the adjusting pads 41222 arranged between the bearing platform 41221 and the pier lifting lug body 411 are respectively abutted against the bearing platform 41221 and the pier lifting lug body 411. In such a structure form, the gap between the bearing platform 41221 and the hole wall of the rotation stopping hole 4111 and/or the gap between the bearing platform 41221 and the supporting pad 4121 can be adjusted to accurately position the track beam 1, and after the track beam 1 is positioned, the corresponding adjusting pad 41222 is plugged between the bearing platform 41221 and the supporting pad 4121 and between the adjusting pad 41222 and the hole wall of the rotation stopping hole 4111, so that the bearing platform 41221 is tightly abutted against the rotation stopping hole 4111, the axial movement of the first pin shaft 2 relative to the pier lifting lug body 411 along the first pin shaft 2 is limited, and the axial movement of the second pin shaft 3 relative to the pier lifting lug body 411 along the second pin shaft 3 is limited.

In an embodiment, the adjustment pad 41222 may not be provided, and the force-bearing table 41221 may directly abut against the wall surface of the rotation-stopping hole 4111 and the support pad 4121.

In one embodiment, the adjustment pad 41222 is plate-shaped.

In an embodiment, referring to fig. 6 and 7, each pier lifting lug 41 further includes a stopping portion 413, each rotation stopping hole 4111 is correspondingly provided with a stopping portion 413, the stopping portion 413 corresponding to the first installation hole 11 is located on one side of the corresponding rotation stopping hole 4111 facing the first installation hole 11, and the stopping portion 413 corresponding to the second installation hole 12 is located on one side of the corresponding rotation stopping hole 4111 facing the second installation hole 12. In this structure, in the process of installing the force-bearing device 412 in the rotation stopping hole 4111, the force-bearing device 412 can be prevented from being separated from the corresponding rotation stopping hole 4111 toward the first installation hole 11, and the force-bearing device 412 can be prevented from being separated from the corresponding rotation stopping hole 4111 toward the second installation hole 12.

In an embodiment, referring to fig. 6, the pier lifting lug 41 further includes a sealing plate 414 connected to the pier lifting lug body 411, and the sealing plates 414 are disposed at two ends of the first pin 2 and two ends of the second pin 3 to prevent the first pin 2 and the second pin 3 from moving in the transverse direction. With the adoption of the structure, the first pin shaft 2 and the second pin shaft 3 cannot be separated from the track beam 1 and the pier lifting lugs 41, so that the track beam 1 can be always hung on the pier lifting lugs 41 through the first pin shaft 2 and the second pin shaft 3.

In an embodiment, please refer to fig. 8, the suspension bridge further includes at least two limiting plates 5 and a first sliding plate 6 disposed along the transverse direction, wherein each limiting plate 5 is connected to the corresponding track beam 1, each limiting plate 5 at least partially faces one side of the corresponding pier lifting lug 41 along the transverse direction with the corresponding track beam 1, each first sliding plate 6 is located between the corresponding limiting plate 5 and the corresponding pier lifting lug 41, each first sliding plate 6 is connected to the corresponding pier lifting lug 41, and a friction coefficient between the limiting plate 5 and the first sliding plate 6 is smaller than a friction coefficient between the limiting plate 5 and the pier lifting lug 41. According to the structure, each limiting plate 5 at least partially faces one side of the corresponding pier lifting lug 41 along the transverse direction with the corresponding track beam 1, so that the limiting plates 5 can perform a certain limiting effect between the track beam 1 and the pier lifting lug 41 along the transverse direction, and the degree of the track beam 1 shifting relative to the pier lifting lug 41 along the transverse direction is reduced. First slide 6 is located and corresponds between limiting plate 5 and the pier lug 41 and be connected with pier lug 41, receives the flexible deformation influence of cold and hot to move for pier lug 41 when track roof beam 1, and track roof beam 1 drives limiting plate 5 and slides for first slide 6, and the coefficient of friction between limiting plate 5 and the first slide 6 is less, is favorable to reducing the wear of limiting plate 5 and track roof beam 1 receives the flexible resistance that warp the removal and receive of cold and hot.

In one embodiment, referring to fig. 4, the first beam lifting lug 14 is connected to the position-limiting plate 5 on the side facing the corresponding pier lifting lug 41, and the second beam lifting lug 15 is connected to the position-limiting plate 5 on the side facing the corresponding pier lifting lug 41.

In an embodiment, referring to fig. 6 and 7, the first sliding plate 6 is connected to the pier shackle body 411.

In one embodiment, the first slider 6 is a tetrafluoro slider.

In an embodiment, the first sliding plate 6 may not be provided, and the position limiting plate 5 may be in direct contact friction with the pier lug 41.

In an embodiment, referring to fig. 4, the track beam 1 is located between two pier lifting lugs 41 which are oppositely arranged along the transverse direction, and the first pin 2 includes: a first rotation stop shaft 21 and a first rotation shaft 22. The first rotation stopping shaft 21 penetrates through the two first mounting holes 11 which are oppositely arranged, the first rotation stopping shaft 21 can move in the extending direction of the track beam 1 in the corresponding first mounting hole 11, and the corresponding track beam 1 is used for limiting the rotation of the first rotation stopping shaft 21 relative to the track beam 1. Both ends of the first rotary shaft 22 are connected to the first rotary shaft 22, and the first rotary shaft 22 is rotatably connected to the corresponding pier shackle 41. According to the structure, the first pin shaft 2 is divided into multiple sections, the two ends of the first rotation stopping shaft 21 are connected with the first rotating shaft 22, the first rotation stopping shaft 21 rotates along with the track beam 1, the moving direction of the first rotation stopping shaft 21 in the first mounting hole 11 can be kept basically the same as the extending direction of the track beam 1 all the time, the first rotating shaft 22 is rotatably connected with the pier lifting lugs 41, the track beam 1 can rotate for a certain angle relative to the pier lifting lugs 41, and the extending direction of the track beam 1 can be adjusted according to actual needs.

In one embodiment, the first anti-rotation shaft 21 has a polygonal cross-sectional shape.

In one embodiment, referring to fig. 4, the first rotation-stopping shaft 21 has a rectangular cross-sectional shape.

In one embodiment, the first rotating shaft 22 has a circular cross-sectional shape.

In an embodiment, the cross-sectional shape of the first rotation-stopping shaft 21 and the cross-sectional shape of the first mounting hole 11 are both rectangular, and the distance of the first mounting hole 11 along the extending direction of the track beam 1 is greater than the span of the first pin shaft 2 along the extending direction of the track beam 1. In this way, the first pin 2 can move in the first mounting hole 11 along the extending direction of the track beam 1, and is constrained by the rectangular cross section, the first pin 2 cannot rotate in the first mounting hole 11, and the moving direction of the first pin 2 in the first mounting hole 11 is always kept in the extending direction of the track beam 1.

For example, referring to fig. 8, the span of the first mounting hole 11 along the extending direction of the track beam 1 is D2, and the span of the first pin 2 along the extending direction of the track beam 1 is D1, D2> D1.

In an embodiment, the first rotating shaft 22 is disposed through the rotation stopping hole 4111.

In an embodiment, the second pin 3 includes a second rotation-stopping shaft 31 and a second rotation shaft 32, the second rotation-stopping shaft 31 penetrates through the two second mounting holes 12 which are oppositely arranged, the track beam 1 is used for limiting the second rotation-stopping shaft 31 to rotate relative to the track beam 1, and the track beam 1 is used for limiting the radial movement of the corresponding second pin 3 relative to the track beam 1 along the second rotation-stopping shaft 31. Both ends of the second rotation shaft 32 are connected to the second rotation shaft 32, and the second rotation shaft 32 is rotatably connected to the corresponding pier shackle 41. In such a structure, the track beam 1 limits the second rotation-stopping shaft 31 to rotate relative to the track beam 1, the track beam 1 limits the second rotation-stopping shaft 31 to move relative to the track beam 1 along the radial direction of the second rotation-stopping shaft 31, and the abutment ears are rotatably connected with the second rotation shaft 32, so that the track beam 1 does not substantially move along the extending direction of the track beam 1 at the end where the second mounting hole 12 is formed, and the track beam 1 is prevented from moving along the extending direction of the track beam 1. The second rotation shaft 32 is rotatably coupled to the pier lug 41 such that the rail girder 1 can be rotated by a certain angle with respect to the pier lug 41 to change the extending direction of the rail girder 1 to be adapted to slopes of different angles.

In one embodiment, referring to fig. 4, the cross-sectional shape of the second rotation-stopping shaft 31 is rectangular, and the cross-sectional shape of the second rotation-stopping shaft 32 is circular.

In one embodiment, the second pin is rotatably connected with the track beam, and the pier lifting lugs limit the second pin to rotate relative to the pier lifting lugs.

In one embodiment, the cross-sectional shape of the second pin at any position along the axial direction of the second pin is circular.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A suspended bridge, comprising:

2. The suspended bridge according to claim 1, wherein the rail beam is disposed between two of the pier lugs arranged laterally opposite to each other, and the first pin comprises:

3. The suspended bridge according to claim 2, wherein the first rotation-stopping shaft has a rectangular cross-sectional shape, the first mounting hole has a rectangular cross-sectional shape, and a span of the first mounting hole in the extending direction of the track beam is greater than a span of the first pin shaft in the extending direction of the track beam.

4. The suspended bridge of claim 2, wherein the second pin comprises:

5. The suspended bridge according to any one of claims 1 to 4, wherein the pier lifting lug comprises:

6. The suspended bridge according to claim 5, wherein the force bearing means comprises:

7. The suspended bridge according to claim 6, wherein the messenger assembly comprises:

8. The suspended bridge according to claim 5, wherein the pier lifting lug further comprises a stop portion, each rotation stopping hole is correspondingly provided with the stop portion, the stop portion corresponding to the first installation hole is located on a side of the rotation stopping hole facing the first installation hole, and the stop portion corresponding to the second installation hole is located on a side of the rotation stopping hole facing the second installation hole.

9. The suspended bridge according to claim 5, wherein the pier lifting lugs further comprise sealing plates connected to the pier lifting lug body, and the sealing plates are arranged at both ends of the first pin shaft and both ends of the second pin shaft to prevent the first pin shaft and the second pin shaft from moving in the transverse direction.

10. The suspended bridge according to any one of claims 1 to 4, further comprising at least two limiting plates and a first sliding plate, wherein the two limiting plates and the first sliding plate are arranged in a transverse direction, the two limiting plates are connected with the corresponding track beam, each limiting plate is at least partially located on one side, facing the corresponding track beam, of the corresponding lifting lug of the pier in a transverse direction, each first sliding plate is located between the corresponding limiting plate and the corresponding lifting lug of the pier, each first sliding plate is connected with the corresponding lifting lug of the pier, and the friction coefficient between the limiting plate and the first sliding plate is smaller than that between the limiting plate and the lifting lug of the pier.