CN112049890B - Bridge girder falling prevention device capable of balancing transverse bending moment - Google Patents
Bridge girder falling prevention device capable of balancing transverse bending moment Download PDFInfo
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- CN112049890B CN112049890B CN202010933593.2A CN202010933593A CN112049890B CN 112049890 B CN112049890 B CN 112049890B CN 202010933593 A CN202010933593 A CN 202010933593A CN 112049890 B CN112049890 B CN 112049890B
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- falling
- balancing
- compression rod
- rod
- connecting seat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
Abstract
The invention discloses a bridge anti-falling device capable of balancing transverse bending moment, which belongs to the technical field of building bridges and comprises a first longitudinal anti-falling beam assembly and a second longitudinal anti-falling beam assembly, wherein the first longitudinal anti-falling beam assembly and the second longitudinal anti-falling beam assembly are respectively positioned at two sides of a main beam, the first longitudinal anti-falling beam assembly and the second longitudinal anti-falling beam assembly are connected with a balance rod, the balance rod is positioned in a gap between two adjacent main beams, a mounting seat is fixedly arranged on the end surface of each main beam, and the balance rod is rotatably connected with the main beams through the mounting seats; when the two main beams displace along the longitudinal direction, the upper compression device and the lower compression device are close together along the vertical direction, and the upper compression device acts on the balancing rod through the connecting rod assembly to enable the balancing rod to rotate by a certain angle. The device can effectively prevent the girder from falling through the linkage action of the first longitudinal girder falling prevention assembly and the second longitudinal girder falling prevention assembly on the two sides of the main girder.
Description
Technical Field
The invention belongs to the technical field of building bridges, and particularly relates to a bridge anti-falling device capable of balancing transverse bending moment.
Background
When the bridge is subjected to a strong earthquake, the bridge can bear a large load instantly so as to generate large displacement, the generated displacement exceeds the laying length of the beam or the beam can be dropped due to insufficient strength of the stop blocks, and the beam dropping can bring irrecoverable serious loss. The anti-falling beam structure is a connecting measure structure used for resisting earthquake and preventing a beam body from falling or disengaging in a bridge structure.
Most of the existing anti-falling beam structures are arranged on two sides of a main beam, when the main beam is excited by transverse and longitudinal earthquakes, bending moment can be applied to a pier supporting part, the stress directions of the anti-falling beam devices on two sides of the main beam are opposite, so that the anti-falling beam device on one side of the main beam can be used for preventing the falling beam, and the effect of preventing the falling beam can not be well played.
Disclosure of Invention
In view of the above, the present invention provides a bridge girder-falling prevention device capable of balancing a transverse bending moment, which can effectively prevent girder falling through a linkage effect of a first longitudinal girder-falling prevention assembly and a second longitudinal girder-falling prevention assembly on two sides of a main girder.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention relates to a bridge anti-falling device capable of balancing transverse bending moment, which comprises a first longitudinal anti-falling beam assembly and a second longitudinal anti-falling beam assembly, wherein the first longitudinal anti-falling beam assembly and the second longitudinal anti-falling beam assembly are respectively positioned at two sides of a main beam, the first longitudinal anti-falling beam assembly and the second longitudinal anti-falling beam assembly are connected with a balancing rod, the balancing rod is positioned in a gap between two adjacent main beams, a mounting seat is fixedly arranged on the end surface of each main beam, and the balancing rod is rotatably connected with the main beams through the mounting seats; the structure that first vertical roof beam subassembly and the second of preventing falls the roof beam subassembly is the same, all includes compressor arrangement, lower compressor arrangement and damping device, the both ends of going up compressor arrangement, lower compressor arrangement are provided with first connection structure and the second connection structure of being connected with two adjacent girders respectively, damping device sets up at last compressor arrangement under and between the compressor arrangement, damping device is used for providing the damping when compressing between compressor arrangement and the lower compressor arrangement and drawing close, the both ends of balancing pole are connected with the last compressor arrangement of first vertical roof beam subassembly and the vertical roof beam subassembly of preventing falling of second through link assembly respectively, when two girders were along vertically taking place the displacement, go up compressor arrangement and lower compressor arrangement and draw close along vertical, it makes its certain angle of rotation to go up compressor arrangement through link assembly effect balancing pole.
Further, the upper compression device comprises an upper connecting seat, a first compression rod and a second compression rod, the first compression rod and the second compression rod are symmetrical relative to the center of the upper connecting seat, the upper ends of the first compression rod and the second compression rod are respectively pivoted with the upper connecting seat, the lower compression device comprises a lower connecting seat, a third compression rod and a fourth compression rod, the third compression rod and the fourth compression rod are symmetrical relative to the center of the lower connecting seat, the lower ends of the third compression rod and the fourth compression rod are respectively pivoted with the lower connecting seat, the first compression rod and the third compression rod are simultaneously pivoted with the first connecting structure, and the second compression rod and the fourth compression rod are simultaneously pivoted with the second connecting structure.
Furthermore, the upper connecting seat is provided with a first pivot and a second pivot, the upper ends of the first pressure lever and the second pressure lever are respectively pivoted with the upper connecting seat through the first pivot and the second pivot, the lower connecting seat is provided with a third pivot and a fourth pivot, and the lower ends of the third pressure lever and the fourth pressure lever are respectively pivoted with the lower connecting seat through the third pivot and the fourth pivot.
Furthermore, first connection structure includes first round pin axle, second connection structure includes the second round pin axle, first round pin axle and second round pin axle are fixed the setting simultaneously in two adjacent girders.
Further, damping device includes the attenuator, the attenuator is along vertical setting just the both ends of attenuator are articulated with last connecting seat and lower connecting seat respectively.
Further, the mount pad is a plurality of groups, and a plurality of groups of mount pads all fixed connection to the girder of homonymy.
Further, the mounting base comprises a base body, a through hole is formed in the base body, a bearing is installed in the through hole, and a screw connected with the main beam is arranged on one side of the base body.
Furthermore, one side of the seat body is provided with a hole for screwing the screw conveniently.
The invention has the beneficial effects that:
the invention relates to a girder falling prevention device, which comprises a first longitudinal girder falling prevention assembly and a second longitudinal girder falling prevention assembly which are connected with a balance rod, when two main girders are displaced along the longitudinal direction, an upper compression device and a lower compression device are drawn close along the vertical direction, the upper compression device and the lower compression device are damped, so that a bridge is prevented from falling, the upper compression device and the lower compression device are acted on the balance rod through a connecting rod assembly to rotate for a certain angle while being subjected to damping force, after the balance rod rotates, the rotating torque can be transmitted to the girder falling prevention assembly at the other side through the connecting rod assembly, so that the first longitudinal girder falling prevention assembly and the second longitudinal girder falling prevention assembly at the two sides of the main girders can be influenced mutually, and the first longitudinal girder falling prevention assembly and the second longitudinal girder falling prevention assembly at the two sides of the main girders can simultaneously play roles when a pier supporting part is subjected to bending moment, the stability of the device is improved and the roof beam effect is prevented falling, the cost is reduced.
Additional advantages, objects, and features of the invention will be set forth in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic structural view of a first longitudinal drop beam assembly of the present invention;
FIG. 3 is a schematic structural view of the connecting rod assembly of the present invention;
FIG. 4 is a schematic structural view of the mounting base of the present invention;
FIG. 5 is a side view of the apparatus of the present invention in use;
FIG. 6 is a top view of the device of the present invention in use.
The drawings are numbered as follows: the anti-falling device comprises a first longitudinal anti-falling beam assembly 1, an upper compression device 11, an upper connecting seat 111, a first pressure lever 112, a second pressure lever 113, a first pivot 114, a second pivot 115, a lower compression device 12, a lower connecting seat 121, a third pressure lever 122, a fourth pressure lever 123, a third pivot 124, a fourth pivot 125, a damping device 13, a first connecting structure 14, a second connecting structure 15, a connecting rod assembly 16, a first connecting rod 161, a second connecting rod 162, a second longitudinal anti-falling beam assembly 2, a balance rod 3, a mounting seat 4, a seat body 41, a bearing 42, a screw 43 and an opening 44.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the description of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 6, the bridge girder falling prevention device capable of balancing transverse bending moment of the present invention includes a first longitudinal girder falling prevention assembly 1 and a second longitudinal girder falling prevention assembly 2, the first longitudinal girder falling prevention assembly 1 and the second longitudinal girder falling prevention assembly 2 are respectively located at two sides of a main girder, the first longitudinal girder falling prevention assembly 1 and the second longitudinal girder falling prevention assembly 2 are connected with a balance rod 3, the balance rod 3 is located in a gap between two adjacent main girders, an installation seat 4 is fixedly arranged on an end surface of each main girder, and the balance rod 3 is rotatably connected with the main girder through the installation seat 4; the first longitudinal anti-falling beam assembly 1 and the second longitudinal anti-falling beam assembly 2 have the same structure, taking the first longitudinal anti-falling beam assembly 1 as an example, the first longitudinal anti-falling beam assembly comprises an upper compression device 11, a lower compression device and a damping device 13, a first connecting structure 14 and a second connecting structure 15 which are respectively connected with two adjacent main beams are arranged at two ends of the upper compression device 11 and the lower compression device, the damping device 13 is arranged between the upper compression device 11 and the lower compression device, the damping device 13 is used for providing damping when the upper compression device 11 and the lower compression device are compressed and closed, two ends of the balance bar 3 are respectively connected with the upper compression device 11 of the first longitudinal anti-falling beam assembly 1 and the second longitudinal anti-falling beam assembly 2 through a connecting rod assembly 16, when the two main beams are displaced along the longitudinal direction, the upper compression device 11 and the lower compression device are closed along the vertical direction, the upper compression device 11 acts on the balance bar 3 through the connecting rod assembly 16 to enable the balance bar to rotate for a certain angle, the longitudinal direction is along the length direction of the bridge, and the transverse direction is perpendicular to the longitudinal direction, the connecting rod assembly 16 includes a first connecting rod 161 and a second connecting rod 162, one end of the first connecting rod 161 is hinged with the upper compression device 11, the other end of the first connecting rod 161 is hinged with the second connecting rod 162, and the second connecting rod 162 is simultaneously fixedly connected with the balance bar 3.
The invention relates to a girder falling prevention device, which comprises a first longitudinal girder falling prevention assembly 1 and a second longitudinal girder falling prevention assembly 2 which are connected with a balance rod 3, when two girders are displaced along the longitudinal direction, an upper compression device 11 and a lower compression device are drawn close along the vertical direction, the upper compression device 11 and the lower compression device are damped, so as to prevent the girder from falling, the upper compression device 11 and the lower compression device are subjected to damping force, the upper compression device 11 acts on the balance rod 3 through a connecting rod assembly 16 to rotate for a certain angle, after the balance rod 3 rotates, the rotating torque can be transmitted to the girder falling prevention assembly at the other side through the connecting rod assembly 16, so that the first longitudinal girder falling prevention assembly 1 and the second longitudinal girder falling prevention assembly 2 at the two sides of the girders can be mutually influenced, the supporting part of a bridge pier is subjected to bending moment, so that the first longitudinal girder falling prevention assembly 1 and the second longitudinal girder falling prevention assembly 2 at the two sides of the girders can simultaneously play a role, the stability of the device is improved and the roof beam effect is prevented falling, the cost is reduced.
In this embodiment, the upper compression device 11 includes an upper connection seat 111, a first compression bar 112 and a second compression bar 113, the first compression bar 112 and the second compression bar 113 are symmetrical with respect to the center of the upper connection seat 111, the upper ends of the first compression bar 112 and the second compression bar 113 are respectively pivoted with the upper connection seat 111, the lower compression device includes a lower connection seat 121, a third compression bar 122 and a fourth compression bar 123, the third compression bar 122 and the fourth compression bar 123 are symmetrical with respect to the center of the lower connection seat 121, the lower ends of the third compression bar 122 and the fourth compression bar 123 are respectively pivoted with the lower connection seat 121, the first compression bar 112 and the third compression bar 122 are simultaneously pivoted with the first connection structure 14, and the second compression bar 113 and the fourth compression bar 123 are simultaneously pivoted with the second connection structure 15. When two girders are displaced along the longitudinal direction, the two ends of the first pressure lever 112 and the second pressure lever 113 are pulled longitudinally, the included angle between the first pressure lever 112 and the second pressure lever 113 is continuously increased, the upper ends of the first pressure lever 112 and the second pressure lever 113 move downwards, similarly, the included angle between the third pressure lever 122 and the fourth pressure lever 123 of the lower compression device is also continuously increased, the upper compression device 11 and the lower compression device are closed along the vertical direction, the upper compression device 11 and the lower compression device are damped, and the girder falling prevention effect is realized.
In this embodiment, the upper connecting seat 111 is provided with a first pivot and a second pivot, the first pivot and the second pivot are in the same horizontal plane, the upper ends of the first pressure lever 112 and the second pressure lever 113 are respectively pivoted with the upper connecting seat 111 through the first pivot and the second pivot, the lower connecting seat 121 is provided with a third pivot and a fourth pivot, the third pivot and the fourth pivot are in the same horizontal plane, and the lower ends of the third pressure lever 122 and the fourth pressure lever 123 are respectively pivoted with the lower connecting seat 121 through the third pivot and the fourth pivot.
In this embodiment, the first connecting structure 14 includes a first pin, the second connecting structure 15 includes a second pin, the first pin and the second pin are simultaneously and fixedly disposed in two adjacent main beams, and can be fixedly connected to the main beams in a threaded connection manner, so as to bear the acting force of the main beams on the pins when an earthquake occurs.
In this embodiment, the damping device 13 includes a damper, the damper is vertically disposed, and two ends of the damper are respectively hinged to the upper connecting seat 111 and the lower connecting seat 121. Mount pad 4 is a plurality of groups, and the equal fixed connection of a plurality of groups mount pad 4 is to the girder of homonymy, through setting up a plurality of groups mount pad 4, can make the rotation of balancing pole 3 more stable, prevent its irreversible bending, in this embodiment, balancing pole 3 can adopt the spring steel material to make, certain elasticity has, through the girder with the equal fixed connection of a plurality of groups mount pad 4 to the homonymy, when taking place certain displacement between two girders, avoid mount pad 4 on two girders to exert certain shear stress to the middle part of balancing pole 3.
In this embodiment, the mounting base 4 includes a base body 41, a through hole is formed in the base body 41, a bearing 42 is installed in the through hole, and a screw 43 connected to the main beam is disposed on one side of the base body 41. One side of the base body 41 is provided with an opening 44 for screwing the screw 43 conveniently, so that detachable connection can be realized, and overhaul and maintenance are facilitated.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a can balance bridge of horizontal moment of flexure and prevent beam device that falls which characterized in that: the anti-falling device comprises a first longitudinal anti-falling beam assembly and a second longitudinal anti-falling beam assembly, wherein the first longitudinal anti-falling beam assembly and the second longitudinal anti-falling beam assembly are respectively positioned at two sides of a main beam, the first longitudinal anti-falling beam assembly and the second longitudinal anti-falling beam assembly are connected with a balancing rod, the balancing rod is positioned in a gap between two adjacent main beams, a mounting seat is fixedly arranged on the end surface of each main beam, and the balancing rod is rotatably connected with the main beams through the mounting seats; the structure that first vertical roof beam subassembly and the second of preventing falls the roof beam subassembly is the same, all includes compressor arrangement, lower compressor arrangement and damping device, the both ends of going up compressor arrangement, lower compressor arrangement are provided with first connection structure and the second connection structure of being connected with two adjacent girders respectively, damping device sets up at last compressor arrangement under and between the compressor arrangement, damping device is used for providing the damping when compressing between compressor arrangement and the lower compressor arrangement and drawing close, the both ends of balancing pole are connected with the last compressor arrangement of first vertical roof beam subassembly and the vertical roof beam subassembly of preventing falling of second through link assembly respectively, when two girders were along vertically taking place the displacement, go up compressor arrangement and lower compressor arrangement and draw close along vertical, it makes its certain angle of rotation to go up compressor arrangement through link assembly effect balancing pole.
2. The bridge girder-falling prevention device capable of balancing transverse bending moment according to claim 1, wherein: the upper compression device comprises an upper connecting seat, a first compression rod and a second compression rod, the first compression rod and the second compression rod are symmetrical relative to the center of the upper connecting seat, the upper ends of the first compression rod and the second compression rod are respectively pivoted with the upper connecting seat, the lower compression device comprises a lower connecting seat, a third compression rod and a fourth compression rod, the third compression rod and the fourth compression rod are symmetrical relative to the center of the lower connecting seat, the lower ends of the third compression rod and the fourth compression rod are respectively pivoted with the lower connecting seat, the first compression rod and the third compression rod are simultaneously pivoted with a first connecting structure, and the second compression rod and the fourth compression rod are simultaneously pivoted with a second connecting structure.
3. The bridge girder-falling prevention device capable of balancing transverse bending moment according to claim 2, wherein: the upper connecting seat is provided with a first pivot and a second pivot, the upper ends of the first pressure lever and the second pressure lever are respectively pivoted with the upper connecting seat through the first pivot and the second pivot, the lower connecting seat is provided with a third pivot and a fourth pivot, and the lower ends of the third pressure lever and the fourth pressure lever are respectively pivoted with the lower connecting seat through the third pivot and the fourth pivot.
4. The bridge girder-falling prevention device capable of balancing transverse bending moment according to claim 3, wherein: the first connecting structure comprises a first pin shaft, the second connecting structure comprises a second pin shaft, and the first pin shaft and the second pin shaft are simultaneously and fixedly arranged in the two adjacent main beams.
5. The bridge girder falling prevention device capable of balancing transverse bending moment according to claim 4, wherein: the damping device comprises a damper, the damper is vertically arranged, and two ends of the damper are hinged to the upper connecting seat and the lower connecting seat respectively.
6. The bridge girder-falling prevention device capable of balancing transverse bending moment according to any one of claims 1 to 5, wherein: the mounting seats are a plurality of groups, and the mounting seats of the groups are fixedly connected to the main beams at the same side.
7. The bridge girder falling prevention device capable of balancing transverse bending moment of claim 6, wherein: the mounting base comprises a base body, a through hole is formed in the base body, a bearing is installed in the through hole, and a screw connected with the main beam is arranged on one side of the base body.
8. The bridge girder-falling prevention device capable of balancing transverse bending moment of claim 7, wherein: one side of the seat body is provided with a hole for screwing the screw conveniently.
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| CN202010933593.2A CN112049890B (en) | 2020-09-08 | 2020-09-08 | Bridge girder falling prevention device capable of balancing transverse bending moment |
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| CN202010933593.2A CN112049890B (en) | 2020-09-08 | 2020-09-08 | Bridge girder falling prevention device capable of balancing transverse bending moment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112523070B (en) * | 2020-12-16 | 2022-05-27 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
| CN112832120B (en) * | 2021-01-14 | 2022-07-15 | 广东创昇金属结构有限公司 | Chain bridge anti-falling device |
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