Bridge limiting device

Abstract

The utility model relates to the technical field of bridges, and discloses a bridge limiting device which comprises a bridge and a limiting device body. The bridge comprises an upper structure and a pier column, and the upper structure is located above the pier column. The limiting device comprises an anti-beam-falling device and an anti-overturning device, and the anti-beam-falling device and the anti-overturning device are perpendicular to each other and are connected with each other; the anti-beam-falling device and the anti-overturning device are integrally formed and connected with an upper structure. The anti-falling beam device can limit the transverse displacement of the beam body and prevent the beam body from falling, so that the damage of the earthquake to the bridge is reduced. The anti-overturning device can limit overturning of the upper structure of the bridge, the anti-overturning capacity of the bridge is improved, and the stability of the bridge under the action of unbalance loading and the like is guaranteed. The bridge can be effectively protected through the limiting device, beam falling of an upper structure under the action of an earthquake and overturning of the upper structure under the action of unbalance loading are prevented, and meanwhile the appearance effect of the landscape bridge can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to a bridge limiting device. Background Art

[0002] For pedestrian landscape bridges built across rivers or along rivers and lakes in parks and wetlands, which are convenient for tourists to view scenery, get close to water and meet the traffic function, the design principle is beautiful line shape and visual transparency. Therefore, the bridges usually adopt steel structures, the height of the upper structure beam is relatively low, and the lower structure will also adopt different shapes according to the surrounding environment. For such pedestrian landscape bridges, the bridge is long, basically more than several hundred meters; the bridge width is relatively narrow, only 3-6m; the lower structure adopts single columns or V-shaped columns, and no capping beam is set on the pier top; the radius of the horizontal curve is relatively small. At present, the commonly used anti-falling beam measures in bridge engineering are pier limiting blocks or limiting anchor bolts, and the anti-overturning measures include beam end weight, increasing the curve radius, setting tensile bearings, etc.

[0003] There are mainly three existing anti-overturning measures: one is to press weights at the beam ends, the second is to increase the radius of the circular curve, and the third is to adopt tensile bearings. Due to the relatively low beam height, adding weights at the beam ends has limited effect on increasing the anti-overturning effect. In addition, the setting of a small curve radius on the bridge plane is inevitable. The tensile bearing has a complex structure and high cost. Summary of the Utility Model

[0004] The embodiment of the utility model aims to provide a bridge limiting device to solve the technical problems raised in the prior art.

[0005] The embodiment of the utility model solves its technical problems by adopting the following technical solutions:

[0006] Provide a bridge limiting device, including:

[0007] A bridge, the bridge includes an upper structure and a pier column, and the upper structure is located above the pier column;

[0008] A limiting device, the limiting device includes an anti-falling beam device and an anti-overturning device, and the anti-falling beam device and the anti-overturning device are arranged perpendicular to each other and integrally formed;

[0009] Wherein, the anti-falling beam device is connected to the upper structure of the bridge, and the anti-overturning device is arranged below the pier column.

[0010] In some embodiments, the pier column includes a pier top cover plate, the pier top cover plate is arranged at the top of the pier column, the anti-overturning device is located below the pier top cover plate, and the anti-falling beam device is arranged on the side of the pier top cover plate.

[0011] In some embodiments, the anti-overturning device is disposed within the pier column and below the pier top cover plate;

[0012] Wherein, when the superstructure overturns, the anti-overturning device can abut against the bottom of the pier top cover plate, and the anti-falling beam device is used to limit the overturning of the superstructure.

[0013] In some embodiments, the anti-overturning device includes an anti-overturning baffle, and the anti-overturning baffle is disposed within the pier column and below the pier top cover plate.

[0014] In some embodiments, the anti-overturning device further includes a first stiffening rib, and the first stiffening rib is disposed on the anti-overturning baffle.

[0015] In some embodiments, the anti-overturning device further includes a first rubber cushion block, and the first rubber cushion block is located between the anti-overturning baffle and the pier top cover plate.

[0016] In some embodiments, the anti-falling beam device includes an anti-falling beam baffle, and the anti-falling beam baffle is disposed on the side of the pier top cover plate and is perpendicular to the anti-overturning baffle to be arranged in an L shape.

[0017] In some embodiments, the anti-falling beam device includes fixing bolts, and the anti-falling beam baffle is connected to the superstructure through the fixing bolts.

[0018] In some embodiments, the anti-falling beam device further includes a second rubber cushion block, and the second rubber cushion block is disposed between the anti-falling beam baffle and the superstructure.

[0019] In some embodiments, the anti-falling beam device further includes a second stiffening rib, and the second stiffening rib is disposed on the anti-falling beam baffle.

[0020] Compared with the prior art, in the bridge limiting device provided in the embodiments of the present invention, it includes a bridge and a limiting device. The bridge includes a superstructure and a pier column, and the superstructure is located above the pier column; the limiting device includes an anti-falling beam device and an anti-overturning device, and the anti-falling beam device and the anti-overturning device are perpendicularly arranged and connected to each other; wherein, the anti-falling beam device is connected to the superstructure of the bridge, and the anti-overturning device is connected to the pier column. The anti-falling beam device can limit the lateral displacement of the beam body, prevent the beam body from falling, and meet the requirements of relevant seismic fortification measures. The anti-overturning device can limit the overturning of the bridge superstructure, improve the anti-overturning ability of the bridge, and ensure the stability of the bridge under the action of eccentric load. Through this limiting device, it is possible to prevent the superstructure from falling under the action of an earthquake and the superstructure from overturning under the action of an eccentric load, and in addition, it can also ensure the appearance effect of the landscape bridge. Description of the Drawings

[0021] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the drawings in the figures do not constitute a scale limitation.

[0022] Figure 1 is a schematic structural view of a bridge limit device provided by one embodiment of the present utility model;

[0023] Figure 2 is a partial schematic structural view of a bridge limit device provided by one embodiment of the present utility model.

[0024] Reference numerals:

[0025] 100, bridge limit device; 10, bridge; 11, superstructure; 12, pier column; 121, pier top cover plate; 20, limit device; 21, anti-falling beam device; 211, anti-falling beam baffle; 212, fixing bolt; 213, second rubber cushion block; 214, second stiffening rib; 22, anti-overturning device; 221, anti-overturning baffle; 222, first stiffening rib; 223, first rubber cushion block. Detailed implementation manners

[0026] For the convenience of understanding the present utility model, the present utility model will be described in more detail below with reference to the drawings and specific embodiments. It should be noted that when an element is expressed as "connected" to another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" etc. used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model.

[0028] In the embodiment of the present utility model, the bridge limit device can provide a more comfortable and gentle experience for the user when awakened.

[0029] The following combines Figures 1 to 2, specific embodiments are used to illustrate in detail the bridge limiting device provided by the embodiments of the present application.

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic structural view of the bridge limiting device provided by one embodiment of the present utility model; Figure 2 is a partial structural view of the bridge limiting device provided by one embodiment of the present utility model. The bridge limiting device 100 provided by one embodiment of the present utility model includes a bridge 10 and a limiting device 20. The bridge 10 includes an upper structure 11 and a pier column 12, and the upper structure 11 is located above the pier column 12; the limiting device 20 includes a falling prevention beam device 21 and an anti-overturning device 22, and the falling prevention beam device 21 and the anti-overturning device 22 are arranged perpendicular to each other and integrally formed; wherein, the falling prevention beam device 21 is connected to the upper structure 11 of the bridge 10, and the anti-overturning device 22 is arranged below the pier column 12.

[0031] It should be noted that the upper structure 11 and the pier column 12 can be connected through a common plate rubber bearing.

[0032] The falling prevention beam device 21 and the anti-overturning device 22 are integrally formed, which is convenient for installation in the bridge, does not require separate installation of the falling prevention beam device 21 and the anti-overturning device 22, saves the installation steps, and reduces the construction difficulty; and can save a certain amount of installation space to improve the appearance effect of the bridge.

[0033] The falling prevention beam device 21 in the limiting device 20 can limit the lateral displacement of the beam body, prevent the beam body from falling, and meet the requirements of relevant seismic fortification measures. The anti-overturning device 22 can limit the overturning of the upper structure 11 of the bridge 10, improve the anti-overturning ability of the bridge 10, and ensure the stability of the bridge 10 under the action of eccentric load. Through the limiting device 20, it is possible to prevent the upper structure from falling under the action of an earthquake and the upper structure from overturning under the action of an eccentric load, and in addition, it can also ensure the appearance effect of the landscape bridge.

[0034] Specifically, the falling prevention beam device 21 is connected to the upper structure 11 of the bridge 10. When the bridge 10 is affected by a lateral seismic wave, if there is not enough limiting device 20, the bridge 10 may generate a large lateral displacement, resulting in the beam body slipping and being damaged. The falling prevention beam device 21 can prevent this situation from occurring. The anti-overturning device 22 is connected to the upper structure 11 of the bridge 10 and is located below the pier top cover plate 121 of the pier column 12. When the bridge 10 is affected by an eccentric load, the anti-overturning device 22 can prevent the bridge 10 from overturning. And through the integral formation of the falling prevention beam device 21 and the anti-overturning device 22, it is convenient to install the limiting device 20 on the bridge, and can meet the seismic requirements while meeting the anti-overturning requirements.

[0035] In some embodiments, the pier column 12 includes a pier top cover plate 121, the pier top cover plate 121 is disposed at the top of the pier column 12, the anti-overturning device 22 is located below the pier top cover plate 121, and the anti-falling beam device 21 is disposed on the side of the pier top cover plate 121. When there is a tendency of overturning, the anti-overturning device will contact the pier top cover plate 121 to prevent overturning; when there is a tendency of falling beam, the anti-falling beam device will contact the pier top cover plate 121 to prevent the falling beam.

[0036] By such an arrangement, the overall stability and safety of the bridge 10 can be improved. The weight and load of the superstructure 11 can be transmitted to the pier column 12 through the pier top cover plate 121, increasing the overall stability of the bridge 10. At the same time, the pier top cover plate 121 can also prevent rainwater, sundries, etc. from entering the interior of the pier column 12, protecting the quality and durability of the pier column 12.

[0037] Specifically, when the bridge 10 is subjected to an external force, the superstructure 11 will deform and displace. The pier top cover plate 121 can disperse the reaction force of the superstructure 11 acting on the top of the pier column 12 through its connection with the superstructure 11, avoiding stress concentration, and thus reducing the local stress on the pier column 12. In addition, the pier top cover plate 121 can also play a role in waterproofing and dustproofing, preventing water from accumulating inside the pier column 12 and extending the service life of the pier column 12.

[0038] In some embodiments, the anti-overturning device 22 is disposed inside the pier column 12 and below the pier top cover plate 121; wherein, when the superstructure 11 overturns, the anti-overturning device 22 can abut against the bottom of the pier top cover plate 121, and the anti-falling beam device 21 is used to limit the overturning of the superstructure 11.

[0039] When the superstructure 11 of the bridge 10 overturns, for example, under the action of eccentric load, the superstructure 11 will have a tendency to tilt to one side. The pier top cover plate 121 is located at the top of the pier column 12, and the pier top cover plate 121 is connected to the superstructure 11 through a plain bearing. The anti-overturning device 22 is disposed inside the pier column 12 and below the pier top cover plate 121. When the superstructure 11 overturns, the anti-overturning device 22 will first abut against the bottom of the pier top cover plate 121, thereby restricting the further overturning of the superstructure 11.

[0040] In some embodiments, the anti-overturning device 22 includes an anti-overturning baffle 221, and the anti-overturning baffle 221 is disposed inside the pier column 12 and below the pier top cover plate 121.

[0041] When the superstructure 11 overturns, the anti-overturning baffle 221 will receive an upward thrust and abut against the bottom of the pier top cover plate 121, thereby restricting the further overturning of the superstructure 11. Through such a setting, when the superstructure 11 of the bridge 10 overturns, the anti-overturning baffle 221 can play a role of blocking and restricting, preventing the superstructure 11 from further overturning, thereby improving the overall stability and safety of the bridge 10.

[0042] In some embodiments, the anti-overturning device 22 further includes a first stiffening rib 222, and the first stiffening rib 222 is arranged on the anti-overturning baffle 221. When the superstructure 11 of the bridge 10 overturns, the anti-overturning baffle 221 will receive an upward thrust. At this time, the first stiffening rib 222 can increase the flexural section modulus of the anti-overturning baffle 221, thereby improving its bending resistance and overall stability. The first stiffening rib 222 can be arranged along the length direction of the anti-overturning baffle 221 or other suitable directions, and form an integral structure with the anti-overturning baffle 221 to jointly bear the action of the overturning force. By arranging the first stiffening rib 222, it can effectively prevent the anti-overturning baffle 221 from deforming or being damaged when subjected to the overturning force, ensure the normal operation of the bridge limiting device, and protect the safety of the structure of the bridge 10. At the same time, the first stiffening rib 222 can also improve the local stability of the anti-overturning baffle 221, enabling it to better resist the influence of local loads and stress concentrations.

[0043] In some embodiments, the anti-overturning device 22 further includes a first rubber cushion block 223, and the first rubber cushion block 223 is located between the anti-overturning baffle 221 and the pier top cover plate 121.

[0044] The first rubber cushion block 223 has good elasticity and buffering performance, can provide a certain buffer between the anti-overturning baffle 221 and the pier top cover plate 121, reduce the impact and damage of rigid collision on the structure, and at the same time can also absorb part of the vibration energy and improve the seismic performance of the device. The first rubber cushion block 223 can prevent the anti-overturning baffle 221 from directly contacting the pier top cover plate 121, reduce wear, and extend the service life of the structure.

[0045] When the superstructure 11 of the bridge 10 overturns, the anti-overturning baffle 221 receives an upward thrust. Due to the existence of the first rubber cushion block 223, the anti-overturning baffle 221 will first contact the first rubber cushion block 223, and the first rubber cushion block 223 is compressed, generating elastic deformation and absorbing part of the overturning force. At the same time, the elasticity of the first rubber cushion block 223 also makes the contact between the anti-overturning baffle 221 and the pier top cover plate 121 more uniform, reducing local stress concentration.

[0046] In some embodiments, the anti-falling beam device 21 includes an anti-falling beam baffle 211, which is disposed on the side of the pier top cover plate 121 and is perpendicular to the anti-overturning baffle 221 to form an L-shaped arrangement.

[0047] When an earthquake occurs, the bridge 10 may be subjected to lateral forces, causing the superstructure 11 to have a lateral displacement. At this time, the anti-falling beam baffle 211 and the anti-overturning baffle 221 work together. The anti-falling beam baffle 211 can limit the lateral displacement of the superstructure 11 and prevent the beam body from sliding off the pier top. At the same time, the perpendicular connection between the anti-falling beam baffle 211 and the anti-overturning baffle 221 forms a stable structure, which can effectively resist the lateral forces caused by the earthquake and reduce the deformation and damage of the structure. By setting the anti-falling beam baffle 211 to be perpendicularly connected to the anti-overturning baffle 221 in an L-shaped manner, the stability and integrity of the structure are increased, and the limiting effect of the device and the ability to resist seismic action are improved.

[0048] In some embodiments, the anti-falling beam device 21 includes fixing bolts 212, and the anti-falling beam baffle 211 is connected to the superstructure 11 through the fixing bolts 212. The fixing bolts 212 can stably connect the anti-falling beam baffle 211 and the superstructure 11. In addition, other connecting and fixing components such as screws can also be used for connection.

[0049] In some embodiments, the anti-falling beam device 21 further includes a second rubber cushion block 213, which is disposed between the anti-falling beam baffle 211 and the superstructure 11.

[0050] The second rubber cushion block 213 can provide a certain buffering and shock-absorbing effect, reduce the impact and damage of the earthquake or other external forces on the structure of the bridge 10, and prevent damage caused by collision between the anti-falling beam baffle 211 and the superstructure 11.

[0051] Specifically, when an earthquake or other external forces act on the bridge 10, the superstructure 11 may have a lateral or vertical displacement. The anti-falling beam baffle 211 will first contact the second rubber cushion block 213 and transmit the impact force through the second rubber cushion block 213. The second rubber cushion block 213 has good elastic and damping properties, can absorb part of the impact energy, and play a buffering and shock-absorbing role, reducing the acceleration and displacement response of the superstructure 11. At the same time, the deformation of the rubber cushion block can also consume a part of the seismic energy and reduce the damage to the structure of the bridge 10.

[0052] In some embodiments, the anti-falling beam device 21 further includes a second stiffening rib 214, which is disposed on the anti-falling beam baffle 211.

[0053] The second stiffening rib 214 can improve the structural strength and stability of the anti-falling beam baffle 211, enhance its anti-deformation ability, and thus better prevent the upper structure 11 from falling.

[0054] When external forces such as earthquakes act on the bridge 10, the upper structure 11 may generate large lateral forces or bending moments, resulting in deformation or damage to the anti-falling beam baffle 211. The setting of the second stiffening rib 214 can increase the thickness and width of the anti-falling beam baffle 211, improve its bending and shear resistance, and thus reduce the deformation and damage of the baffle. At the same time, the second stiffening rib 214 can also form an integral body with the anti-falling beam baffle 211 to enhance the structural stability and integrity. When the beam body generates a lateral displacement, the second stiffening rib 214 can effectively limit the deformation of the anti-falling beam baffle 211 and prevent it from slipping off the pier top.

[0055] It should be particularly noted that the bridge limiting device 100 provided in the embodiment of the present invention only shows the part related to the technical problem to be solved by the embodiment of the present invention. It can be understood that the bridge limiting device 100 provided in the embodiment of the present invention also includes other structures for realizing the functions of the bridge limiting device 100.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bridge limit device, characterized in that, Comprising: A bridge, the bridge comprising a superstructure and pier columns, the superstructure being located above the pier columns; A limiting device, the limiting device comprising a falling prevention beam device and an anti-overturning device, the falling prevention beam device and the anti-overturning device being perpendicularly arranged and integrally formed; Wherein, the falling prevention beam device is connected to the superstructure of the bridge, and the anti-overturning device is arranged below the pier columns; The pier columns include pier top cover plates, the pier top cover plates being arranged at the tops of the pier columns, the anti-overturning device being located below the pier top cover plates, and the falling prevention beam device being arranged on the sides of the pier top cover plates; The anti-overturning device includes an anti-overturning baffle, the anti-overturning baffle being arranged inside the pier columns and located below the pier top cover plates; The falling prevention beam device includes a falling prevention beam baffle, the falling prevention beam baffle being arranged on the side of the pier top cover plate and being perpendicular to the anti-overturning baffle to be arranged in an L shape.

2. The bridge limit device according to claim 1, characterized in that, The anti-overturning device is arranged inside the pier columns and located below the pier top cover plates; Wherein, when the superstructure overturns, the anti-overturning device can abut against the bottom of the pier top cover plate, and the falling prevention beam device restricts the superstructure from overturning.

3. The bridge limit device according to claim 2, characterized in that, The anti-overturning device further includes a first stiffening rib, the first stiffening rib being arranged on the anti-overturning baffle.

4. The bridge limit device according to claim 3, characterized in that, The anti-overturning device further includes a first rubber cushion block, the first rubber cushion block being located between the anti-overturning baffle and the pier top cover plate.

5. The bridge limiting device according to claim 4, characterized in that, The falling prevention beam device includes fixing bolts, and the falling prevention beam baffle is connected to the superstructure through the fixing bolts.

6. The bridge limit device according to claim 5, characterized in that, The falling prevention beam device further includes a second rubber cushion block, the second rubber cushion block being arranged between the falling prevention beam baffle and the superstructure.

7. The bridge limit device according to claim 5, characterized in that, The falling prevention beam device further includes a second stiffening rib, the second stiffening rib being arranged on the falling prevention beam baffle.

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