A multi-directional anti-collapse beam device

Abstract

The utility model discloses a multi -direction prevent falling beam device, be located between main beam and pier, include: beam bottom check block, two lateral check blocks, two longitudinal check blocks and shear axle, beam bottom check block is connected in the bottom intermediate position of main beam, two lateral check blocks with two longitudinal check blocks all are connected in the top of pier, and two lateral check blocks are along lateral distribution in the both sides of beam bottom check block, two longitudinal check blocks are along the front -back direction distribution in the both sides of beam bottom check block, the shear axle sleeve is established in the inside of beam bottom check block, wherein, every longitudinal check block all is provided with limit hole. The utility model discloses a beam bottom check block is arranged at the bottom of main beam, the lateral and longitudinal check block is arranged at the top of pier, and utilizes the limit hole cooperation of shear axle and longitudinal check block, realizes the multi -direction limit function of lateral, longitudinal and vertical, effectively prevents the beam falling calamity of main beam under the action such as earthquake, has improved the seismic safety of bridge.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge engineering, and in particular to a multi-directional anti-falling beam device. Background Technology

[0002] Under earthquake action, beam collapse is a common form of bridge damage, causing severe direct and indirect losses that are often difficult to repair. Anti-collapse devices are the main components for preventing beam collapse disasters under earthquake action. Common anti-collapse devices include cables, chains, and blocks. Among these, cables and chains have poor durability, complex maintenance, and poor aesthetics, while blocks are particularly favored by engineers due to their simple construction and clean appearance.

[0003] Currently, traditional retaining blocks are usually only unidirectional measures to prevent beams from falling in the horizontal or vertical direction under seismic action. However, actual seismic action is often non-directional, and unidirectional retaining blocks alone cannot meet the requirements for preventing beams from falling. Utility Model Content

[0004] In view of the aforementioned problems existing in existing bridges, this paper aims to provide a multi-directional anti-falling beam device.

[0005] The specific technical solution is as follows:

[0006] A multi-directional anti-fall beam device, installed between the main beam and the pier, includes:

[0007] A bottom stop block is connected to the bottom center of the main beam.

[0008] Two transverse blocks and two longitudinal blocks are provided. Both the transverse blocks and the longitudinal blocks are connected to the top of the pier. The two transverse blocks are distributed laterally on both sides of the bottom beam block, and the two longitudinal blocks are distributed longitudinally on both sides of the bottom beam block.

[0009] Shear-resistant shaft, which is sleeved inside the bottom stop block of the beam;

[0010] Each of the longitudinal blocks is provided with a limiting hole, and the two ends of the shear shaft are respectively located in the two limiting holes and can be longitudinally limited and matched with the two limiting holes.

[0011] As a further improvement and optimization of this solution, the limiting hole is an oblong hole, with its long axis arranged laterally.

[0012] As a further improvement and optimization of this solution, the diameter of the limiting hole is larger than the diameter of the shear-resistant shaft.

[0013] As a further improvement and optimization of this solution, there are gaps between each of the transverse blocks and the bottom block of the beam, between each of the longitudinal blocks and the bottom block of the beam, and between the bottom block of the beam and the top of the pier.

[0014] As a further improvement and optimization of this solution, the top of the pier has two supports, which are symmetrically distributed on both sides of the pier, and the top of each support is supported on the bottom of the main beam.

[0015] As a further improvement and optimization of this solution, the bottom stop block of the beam is provided with a mounting hole through the front and rear direction, and the shear shaft is coaxially inserted into the mounting hole.

[0016] The outer wall of each shear-resistant shaft is provided with two pin holes radially. The two pin holes are located on both sides of the bottom block of the beam along the front-back direction. Each pin hole is equipped with a pin shaft, and the two pin shafts are respectively matched with the two sides of the bottom block of the beam for limiting.

[0017] As a further improvement and optimization of this solution, the shear-resistant shaft is a steel shear-resistant shaft.

[0018] As a further improvement and optimization of this solution, the bottom stop block of the beam is an integral concrete structure with the main beam, or the bottom stop block of the beam is a steel structure and is connected to the main beam through a pre-embedded part embedded in the bottom of the main beam.

[0019] As a further improvement and optimization of this solution, each of the transverse blocks and each of the longitudinal blocks are integral concrete structures with the pier, or each of the transverse blocks / each of the longitudinal blocks is a steel structure and is connected to the pier through embedded parts pre-embedded in the top of the pier.

[0020] The positive effects of the above technical solution compared with the existing technology are:

[0021] (1) This utility model sets a beam bottom block at the bottom of the main beam, sets a transverse and longitudinal block at the top of the pier, and uses the shear shaft to cooperate with the limiting hole of the longitudinal block to realize the multi-directional limiting function of transverse, longitudinal and vertical, effectively preventing the main beam from falling under the action of earthquake and other forces, and improving the seismic safety of the bridge.

[0022] (2) In this utility model, there are gaps between each transverse stop block and the bottom stop block of the beam, between each longitudinal stop block and the bottom stop block of the beam, and between the bottom stop block of the beam and the top of the pier. The gaps between the components provide space for the deformation of the bridge structure under the action of temperature changes, earthquakes, etc., avoid excessive additional internal forces caused by structural deformation, reduce the risk of structural damage, and at the same time facilitate the precision control during construction and installation, thereby improving the overall stability and reliability of the device. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of a multi-directional anti-falling beam device according to the present invention;

[0024] Figure 2 This is a top view of a multi-directional anti-fall beam device according to the present invention;

[0025] Figure 3 This is a side sectional view of a multi-directional anti-fall beam device according to the present invention;

[0026] Figure 4 This is a schematic diagram of the bottom stop of a multi-directional anti-fall beam device according to the present invention;

[0027] In the attached diagram: 1. Main beam; 2. Pier; 3. Shear shaft; 4. Pin; 11. Beam bottom stop; 21. Support; 22. Transverse stop; 23. Longitudinal stop; 221. Limiting hole. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Figure 1This is a structural schematic diagram of a multi-directional anti-falling beam device according to the present invention. Figure 2 This is a top view of a multi-directional anti-falling beam device according to this utility model. Figure 3 This is a side sectional view of a multi-directional anti-fall beam device according to the present invention. Figure 4 This is a schematic diagram of the bottom stop of a multi-directional anti-fall beam device according to the present invention. Figure 1-4 As shown, a preferred embodiment of a multi-directional anti-fall beam device is provided between the main beam 1 and the pier 2. It includes: a beam bottom stop block 11, two transverse stops 22, two longitudinal stops 23, and a shear shaft 3. The beam bottom stop block 11 is connected to the bottom middle position of the main beam 1. The two transverse stops 22 and the two longitudinal stops 23 are both connected to the top of the pier 2. The two transverse stops 22 are distributed laterally on both sides of the beam bottom stop block 11, and the two longitudinal stops 23 are distributed front-back in the direction on both sides of the beam bottom stop block 11. The shear shaft 3 is sleeved inside the beam bottom stop block 11. Each longitudinal stop block 23 is provided with a limiting hole 221. The two ends of the shear shaft 3 are respectively located in the two limiting holes 221 and can be longitudinally limited by the two limiting holes 221.

[0032] In this application, by setting a bottom block 11 at the bottom of the main beam 1 and setting transverse and longitudinal blocks 23 at the top of the pier 2, and by using the shear shaft 3 in conjunction with the limiting hole 221 of the longitudinal block 23, a multi-directional limiting function in the transverse, longitudinal and vertical directions is realized, which effectively prevents the main beam 1 from falling off under the action of earthquakes and other forces, and improves the seismic safety of the bridge.

[0033] As a further improvement and optimization of this scheme, the limiting hole 221 is an oblong hole, with its long axis set in the transverse direction. The oblong hole design allows the shear shaft 3 to have a certain amount of room to move in the transverse direction. While ensuring longitudinal limiting, it can accommodate the small displacements and deformations that the main beam 1 may produce in the transverse direction, avoiding the shear shaft 3 from getting stuck with the limiting hole 221 due to structural deformation, thus enhancing the flexibility and reliability of the device.

[0034] As a further improvement and optimization of this scheme, the diameter of the limiting hole 221 is larger than the diameter of the shear shaft 3. The larger diameter of the limiting hole 221 provides more room for movement for the shear shaft 3, allowing for a certain degree of relative movement between the main beam 1 and the pier 2 under complex dynamic forces such as earthquakes. This reduces the concentration of internal forces in the structure, prevents damage to the device due to excessive local stress, and improves the durability and seismic performance of the device.

[0035] As a further improvement and optimization of this scheme, gaps are provided between each transverse stop 22 and the bottom stop 11, between each longitudinal stop 23 and the bottom stop 11, and between the bottom stop 11 and the top of the pier 2. These gaps between components provide space for the deformation of the bridge structure under temperature changes, earthquakes, and other forces, avoiding excessive additional internal forces caused by structural deformation, reducing the risk of structural damage, and also facilitating precision control during construction and installation, thus improving the overall stability and reliability of the device.

[0036] As a further improvement and optimization of this scheme, the top of pier 2 has two supports 21, which are symmetrically distributed on both sides of pier 2. The top of each support 21 is supported by the bottom of the main beam 1. The symmetrically distributed supports 21 can evenly transfer the load of the main beam 1 to pier 2, ensuring the stress balance of the bridge structure and improving the overall stability of the structure. At the same time, under the action of earthquakes, the supports 21 can play a certain role in seismic isolation and energy dissipation, reducing the seismic force transmitted to the main beam 1 and pier 2, and further enhancing the anti-girder falling effect of the device.

[0037] As a further improvement and optimization of this scheme, a mounting hole is provided through the bottom stop 11 of the beam along the front-to-back direction, and the shear shaft 3 is coaxially inserted into the mounting hole. The outer wall of the shear shaft 3 is provided with two radial pin holes, located on both sides of the bottom stop 11 along the front-to-back direction. A pin 4 is installed in each pin hole, and the two pins 4 respectively engage with the two sides of the bottom stop 11 for limiting. The mounting holes and pins 4 further enhance the connection stability between the shear shaft 3 and the bottom stop 11, preventing axial movement of the shear shaft 3 under load, ensuring that the shear shaft 3 can effectively perform its shear-resistant function, limiting the vertical displacement of the main beam 1, and improving the reliability and safety of the device.

[0038] As a further improvement and optimization of this scheme, the shear shaft 3 is made of steel. The steel shear shaft 3 possesses high strength and shear capacity, capable of withstanding significant seismic forces and vertical loads, ensuring the normal operation of the device under extreme conditions such as earthquakes. Simultaneously, steel has good toughness and ductility, enabling it to undergo a certain degree of plastic deformation under stress, absorbing seismic energy and reducing damage to the bridge structure.

[0039] As a further improvement and optimization of this scheme, the bottom stop block 11 is an integral concrete structure with the main beam 1, or the bottom stop block 11 is a steel structure and is connected to the main beam 1 through embedded parts pre-embedded in the bottom of the main beam 1. When the bottom stop block 11 and the main beam 1 are an integral concrete structure, the integrity is good, the structural strength is high, and the load can be transferred better, improving the stability of the device. When the bottom stop block 11 is a steel structure and is connected to the main beam 1 through embedded parts, construction is convenient, and flexible design and installation can be carried out according to actual needs. At the same time, the steel structure has high strength and light weight, which helps to reduce the self-weight of the bridge and improve the seismic performance of the structure.

[0040] As a further improvement and optimization of this scheme, each transverse stop 22 and each longitudinal stop 23 is an integral concrete structure with the pier 2, or each transverse stop 22 / each longitudinal stop 23 is a steel structure, connected to the pier 2 through embedded parts pre-embedded in the top of the pier 2. The integral concrete structure of the transverse and longitudinal stops 23 is firmly connected to the pier 2, with good integrity, and can better withstand seismic forces and loads, improving the reliability of the device; the steel structure stops are connected to the pier 2 through embedded parts, which allows for flexible construction and can be adjusted according to the bridge design and construction requirements. At the same time, the steel structure has high strength and durability, which can meet the needs of long-term bridge use.

[0041] A construction method for a multi-directional anti-falling beam device, comprising any one of the aforementioned multi-directional anti-falling beam devices, the method comprising:

[0042] S1: During the construction of pier 2, the transverse stop 22 and the longitudinal stop 23 are constructed simultaneously;

[0043] S2: While constructing the main beam 1, construct the beam bottom stop 11 and ensure that the beam bottom stop 11 is located between the two transverse stops 22 and the two longitudinal stops 23.

[0044] S3: Pass one end of the shear shaft 3 through one of the limiting holes 221 and the beam bottom block 11 in sequence to extend to the other limiting hole 221, so that both ends of the shear shaft 3 are located in the two limiting holes 221 respectively.

[0045] This construction method involves the simultaneous construction of the transverse stop 22, the longitudinal stop 23 and the pier 2, and the simultaneous construction of the beam bottom stop 11 and the main beam 1. This ensures the connection accuracy and integrity between the components, improves construction efficiency and quality, and ensures that the shear shaft 3 can be accurately installed in place to achieve the limiting cooperation with the longitudinal stop 23, thus ensuring the effective functioning of the device's multi-directional limiting and anti-falling beam functions.

[0046] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-directional anti-falling beam device, disposed between the main beam and the pier, characterized in that, include: A bottom stop block is connected to the bottom center of the main beam. Two transverse blocks and two longitudinal blocks are provided. Both the transverse blocks and the longitudinal blocks are connected to the top of the pier. The two transverse blocks are distributed laterally on both sides of the bottom beam block, and the two longitudinal blocks are distributed longitudinally on both sides of the bottom beam block. Shear-resistant shaft, which is sleeved inside the bottom stop block of the beam; Each of the longitudinal blocks is provided with a limiting hole, and the two ends of the shear shaft are respectively located in the two limiting holes and can be longitudinally limited and matched with the two limiting holes.

2. The multi-directional anti-falling beam device according to claim 1, characterized in that, The limiting hole is an oblong hole, with its long axis arranged laterally.

3. The multi-directional anti-falling beam device according to claim 2, characterized in that, The diameter of the limiting hole is larger than the diameter of the shear-resistant shaft.

4. The multi-directional anti-falling beam device according to claim 3, characterized in that, There are gaps between each of the transverse blocks and the bottom block of the beam, between each of the longitudinal blocks and the bottom block of the beam, and between the bottom block of the beam and the top of the pier.

5. The multi-directional anti-falling beam device according to claim 1, characterized in that, The pier has two supports at its top, which are symmetrically distributed on both sides of the pier, and the top of each support is supported on the bottom of the main beam.

6. The multi-directional anti-falling beam device according to claim 1, characterized in that, The beam bottom stop block is provided with a mounting hole through the front and rear direction, and the shear shaft is coaxially inserted into the mounting hole; The outer wall of each shear-resistant shaft is provided with two pin holes radially. The two pin holes are located on both sides of the bottom block of the beam along the front-back direction. Each pin hole is equipped with a pin shaft, and the two pin shafts are respectively matched with the two sides of the bottom block of the beam for limiting.

7. The multi-directional anti-falling beam device according to claim 1, characterized in that, The shear-resistant shaft is a steel shear-resistant shaft.

8. The multi-directional anti-falling beam device according to claim 1, characterized in that, The bottom stop block of the beam is an integral concrete structure with the main beam, or the bottom stop block of the beam is a steel structure and is connected to the main beam through a pre-embedded part embedded in the bottom of the main beam.

9. The multi-directional anti-falling beam device according to claim 1, characterized in that, Each of the transverse blocks and each of the longitudinal blocks are integral concrete structures with the pier, or each of the transverse blocks and each of the longitudinal blocks are steel structures and are connected to the pier through embedded parts pre-embedded in the top of the pier.

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