CN218345934U - Variable-rigidity limiting anti-beam-falling device - Google Patents
Variable-rigidity limiting anti-beam-falling device Download PDFInfo
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- CN218345934U CN218345934U CN202222678028.3U CN202222678028U CN218345934U CN 218345934 U CN218345934 U CN 218345934U CN 202222678028 U CN202222678028 U CN 202222678028U CN 218345934 U CN218345934 U CN 218345934U
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Abstract
The utility model relates to a bridge building technical field specifically is a become spacing roof beam device that falls of rigidity, include the anchorage subassembly and prevent the subassembly that falls, prevent the subassembly that falls including with anchorage subassembly fixed connection's first long baffle and first floor, first long baffle and first floor mutually perpendicular, first long baffle and first floor interval are from last to grow gradually down, its top clearance is 0-1mm, bottom clearance more than or equal to 30mm. When the earthquake impact is received, the upper structure and the lower structure have a transverse dislocation trend, the lower structure is in contact with the first rubber plate, so that the first long baffle starts to generate deformation buffering and consume part of earthquake energy, when the earthquake energy is too large and the first long baffle is not enough to consume the earthquake energy, the first long baffle is deformed to be in contact with the first rib plate, the variable-rigidity limiting anti-falling beam device becomes a rigid support, the continuous dislocation displacement of the upper structure and the lower structure is limited, and the beam falling accident is prevented.
Description
Technical Field
The utility model relates to a bridge building technical field specifically is a become spacing roof beam device that prevents falling of rigidity.
Background
Earthquakes are extremely destructive natural disasters, china is located in distribution areas of the Pacific earthquake zone and the Eurasia earthquake zone at the same time, earthquakes occur frequently, and the earthquakes are particularly concentrated in five areas, namely, taihai, southwest, northwest, north China and southeast coastal areas. The bridges are numerous in China, and the importance of the bridges to traffic is self-evident. The beam falling is a common earthquake damage form of the bridge, once the beam falling happens, serious traffic paralysis is caused, the rescue work is extremely unfavorable, and the beam falling prevention device is produced at the right moment.
The existing beam falling prevention device is mainly a profile steel or concrete stop block or an elastic-plastic damping type beam falling prevention device. The former is a way of directly resisting horizontal impact, and has almost no buffer function; the device is subjected to yield deformation to further absorb and dissipate energy, but the device is used as the last barrier of the bridge, when the device is in a plastic stage, the effect of shock absorption and isolation can be achieved, when the earthquake response is further increased, the displacement is increased, and when more parts enter the plastic deformation, the device can be damaged. The elastic-plastic seismic isolation and fall prevention beam can only be used for fortifying a certain seismic input, and when the seismic input is large, the device cannot provide enough restoring force increment and cannot meet the standard requirement. Therefore, a new anti-beam-falling device with buffering energy consumption under small deformation and certain horizontal rigidity limit under large deformation is needed to improve the reliability of the anti-beam-falling device.
SUMMERY OF THE UTILITY MODEL
For solving prior art's is not enough, the utility model provides a become spacing roof beam device that falls of rigidity, include the anchorage subassembly and prevent the subassembly that falls, prevent the subassembly that falls include with anchorage subassembly fixed connection's first long baffle and first floor, first long baffle and first floor mutually perpendicular, first long baffle and first floor interval are from last to grow gradually down, its top clearance is 0-1mm, bottom clearance more than or equal to 30mm.
Preferably, still include pre-buried subassembly, pre-buried subassembly includes pre-buried steel sheet and embedded steel bar, pre-buried steel sheet and embedded steel bar fixed connection.
Preferably, the anchorage assembly comprises an anchorage steel plate, a plurality of anchorage bolts and an anchorage sleeve, the anchorage sleeve penetrates through and is fixed on the embedded steel plate, and the anchorage bolts penetrate through the anchorage steel plate from the bottom and are in threaded connection with the anchorage sleeve.
Preferably, the anti-falling assembly further comprises a short baffle, the short baffle is fixedly connected with the anchorage steel plate, and the short baffle is in contact with one side, far away from the first long baffle, of the first rib plate and is perpendicular to the first rib plate.
Preferably, a first rubber plate is fixedly mounted on one side, away from the first rib plate, of the first long baffle.
Preferably, a reinforcing rib plate is fixedly installed at the joint of the first long baffle and the anchorage steel plate.
Preferably, the two opposite sides of the first rib plate are respectively and fixedly provided with a first supporting plate, and one side of the first supporting plate is flush with one side of the first rib plate close to the first long baffle.
Preferably, the anti-falling assembly further comprises a second long baffle, a second rib plate and a second rubber plate, the second long baffle is fixedly installed on the anchorage steel plate and is perpendicular to the first long baffle, the second rubber plate is fixedly installed on one side, away from the first rib plate, of the second long baffle, the second rib plate is fixedly connected with the anchorage steel plate, the distance between the second rib plate and the second long baffle is gradually increased from top to bottom, the top gap of the second rib plate is 0-1mm, and the bottom gap of the second rib plate is greater than or equal to 30mm.
Preferably, a second support plate is fixedly mounted on each of two sides of the second rib plate, and one side of the second support plate is flush with one side of the second rib plate close to the second long baffle.
The utility model discloses have following beneficial effect:
under normal operating mode, there is the clearance first long baffle and substructure to satisfy the bridge normal displacement and the demand of turning. When the device is impacted by an earthquake, the upper structure and the lower structure have a transverse dislocation trend, the lower structure is in contact with the first rubber plate to enable the first long baffle to start to generate deformation buffering and consume part of earthquake energy, when the earthquake energy is too large and the first long baffle is not enough to consume the earthquake energy, the first long baffle is deformed to be in contact with the first rib plate, the variable-rigidity limiting anti-falling beam device is changed into a rigid support to limit the upper structure and the lower structure to continue dislocation displacement, and the beam falling accident is prevented.
Drawings
Fig. 1 is a schematic view of the three-dimensional structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a bottom view of fig. 2.
Fig. 4 is a schematic structural view of the first long baffle and the first rib plate of the present invention forming the first notch.
Fig. 5 is a schematic view of the installation of the upper structure and the lower structure of the present invention.
Fig. 6 is a schematic view of the horizontal and vertical anti-falling beam of the present invention.
Fig. 7 is a bottom view of fig. 6.
Fig. 8 is a schematic view of the installation position of the present invention.
In FIGS. 1-8, the list of structures represented by each reference numeral is as follows:
1. pre-burying the assembly; 11. pre-burying a steel plate; 12. embedding reinforcing steel bars in advance; 2. an anchor assembly; 21. an anchorage steel plate; 22. an anchorage bolt; 23. an anchor sleeve; 3. a drop prevention assembly; 31. a first long baffle; 311. reinforcing the ribbed plate; 32. a first rib plate; 321. a first support plate; 322. a first notch; 33. a short baffle; 34. a first rubber sheet; 35. a second long baffle; 36. a second rib plate; 361. a second support plate; 362. a second notch; 37. a second rubber sheet; 4. a superstructure; 5. a lower structure.
Detailed Description
The following description is made for the purpose of illustrating the principles and features of the present invention, and is not intended to limit the scope of the invention.
It will be understood that when an element or component is referred to as being "connected," "positioned," or "mounted" to another element or component, it can be directly on the other element or component or intervening elements or components may also be present. The terms "left", "right", "upper", "lower" and the like as used herein are for illustrative purposes only.
In a specific embodiment, as shown in fig. 1 to 8, the variable-stiffness limiting anti-drop beam device comprises an anchor assembly 2 and an anti-drop assembly 3, wherein the anti-drop assembly 3 comprises a first long baffle 31 and a first ribbed plate 32, the first long baffle 31 and the first ribbed plate 32 are fixedly connected with the anchor assembly 2, the first long baffle 31 and the first ribbed plate 32 are perpendicular to each other, the distance between the first long baffle 31 and the first ribbed plate 32 gradually increases from top to bottom, the top gap is 0-1mm, and the bottom gap is greater than or equal to 30mm.
In this embodiment, still include pre-buried subassembly 1, pre-buried subassembly 1 includes pre-buried steel sheet 11 and embedded steel bar 12, pre-buried steel sheet 11 and embedded steel bar 12 fixed connection, pre-buried subassembly 1 is pre-buried in superstructure 4 when pouring shaping superstructure 4, anchorage subassembly 2 and superstructure 4 fixed connection. The embedded steel bars 12 are U-shaped, so that the connection strength of the embedded assembly 1 and the upper structure 4 is higher.
In this embodiment, the anchorage assembly 2 includes an anchorage steel plate 21, a plurality of anchorage bolts 22 and an anchorage sleeve 23, the anchorage sleeve 23 penetrates through and is fixed on the embedded steel plate 11, the number of the anchorage bolts 22 corresponds to that of the anchorage sleeve 23, a plurality of through holes corresponding to the anchorage sleeve 23 are formed in the anchorage steel plate 21, and the anchorage bolts 22 penetrate through the through holes from the bottom and are in threaded connection with the anchorage sleeve 23 to fixedly connect the embedded assembly 1 and the anchorage assembly 2. The first long baffle 31 and the first rib plate 32 are fixedly connected with the anchorage steel plate 21.
In this embodiment, the anti-falling assembly 3 further includes a short baffle 33, the short baffle 33 is fixedly connected with the anchorage steel plate 21, the short baffle 33 is in contact with one side of the first rib plate 32, which is far away from the first long baffle 31, and is perpendicular to the first rib plate 32, and the short baffle 33 abuts against the first rib plate 32, so that the strength of the first rib plate 32 is increased.
In this embodiment, as shown in fig. 2, the first long baffle 31 is parallel to the first rib plate 32 in the vertical direction, a first notch 322 is formed between the first long baffle 31 and the first rib plate 32, the bottom of the first rib plate 32 near one side of the first long baffle 31 is concave, so that the first notch 322 is gradually widened from top to bottom, and the requirements that the distance between the first long baffle 31 and the first rib plate 32 is gradually enlarged from top to bottom, the top gap is 0-1mm, and the bottom gap is greater than or equal to 30mm are met, so that the first long baffle 31 has a sufficient deformation space. A first rubber plate 34 is fixedly mounted on one side, away from the first rib plate 32, of the first long baffle 31, and the first rubber plate 34 and the first long baffle 31 buffer partial vibration of the bridge through deformation. A reinforcing rib plate 311 is fixedly mounted at the joint of the first long baffle 31 and the anchorage steel plate 21 so as to increase the connection stability between the first long baffle 31 and the anchorage steel plate 21. In other embodiments, as shown in fig. 4, the first long baffle 31 is obliquely arranged to form an included angle with the first rib 32 on the vertical plane, so that the deformable range of the first long baffle 31 is larger, and the cushioned stroke is longer.
In this embodiment, a pair of first support plates 321 is symmetrically and fixedly mounted on the first ribs 32, and one side of the first support plate 321 is flush with the side of the first ribs 32 close to the first long baffle 31, so as to avoid the first long baffle 31 from bending or rotating and twisting in the horizontal direction.
The variable-rigidity limiting anti-falling beam device can be further optimized or/and improved according to actual requirements:
the anti-falling assembly 3 further comprises a second long baffle 35, a second ribbed plate 36 and a second rubber plate 37, the second long baffle 35 is fixedly installed on the anchorage steel plate 21 and perpendicular to the first long baffle 31, the second rubber plate 37 is fixedly installed on one side, away from the first ribbed plate 32, of the second long baffle 35, the second ribbed plate 36 is perpendicular to the second long baffle 35, the first ribbed plate 32 and the anchorage steel plate 21, the second ribbed plate 36 is fixedly connected with the anchorage steel plate 21 and the first ribbed plate 32, the distance between the second ribbed plate 36 and the second long baffle 35 gradually increases from top to bottom, the top gap is 0-1mm, the bottom gap is greater than or equal to 30mm, a pair of symmetrical second support plates 361 are fixedly installed on two opposite sides of the second ribbed plate 36, one side of the second support plate is flush with one side, close to the second long baffle 35, of the second ribbed plate 35 and the second ribbed plate 36, the second long baffle 35 and the bottom gap are gradually increased from top to bottom, the second ribbed plate 36 is larger than or equal to the second elongated baffle 35, the space between the second elongated baffle 35 and the second ribbed plate 35 and the bottom gap is larger than or equal to the second elongated baffle 35, the space is larger from top gap is larger than 0-1mm, and the inner concave space of the second ribbed plate 35, and the second elongated baffle 35 is larger. The variable-rigidity limiting anti-falling beam device can prevent beams from falling in the transverse direction and the longitudinal direction.
In conclusion: under normal working conditions, a gap exists between the first long baffle 31 and the lower structure 5, so that the requirements of normal displacement and rotation of the bridge are met. When the earthquake impact is received, the upper structure 4 and the lower structure 5 have a transverse dislocation trend, the lower structure 5 is contacted with the first rubber plate 34, so that the first long baffle 31 starts to generate deformation buffering and consume part of earthquake energy, when the earthquake energy is overlarge and the first long baffle 31 is not enough to consume the earthquake energy, the first long baffle 31 is deformed to be contacted with the first rib plate 32, the variable-rigidity limiting anti-falling beam device is changed into a rigid support, the continuous dislocation displacement of the upper structure 4 and the lower structure 5 is limited, and the beam falling accident is prevented.
The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any manner; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a become spacing roof beam device that prevents falling of rigidity which characterized in that: including anchorage subassembly (2) and prevent falling subassembly (3), prevent falling subassembly (3) include with anchorage subassembly (2) fixed connection's first long baffle (31) and first floor (32), first long baffle (31) and first floor (32) mutually perpendicular, first long baffle (31) and first floor (32) interval are from last to grow gradually down, its top clearance is 0-1mm, bottom clearance more than or equal to 30mm.
2. The variable-rigidity limiting anti-falling beam device according to claim 1, characterized in that: still include pre-buried subassembly (1), pre-buried subassembly (1) is including pre-buried steel sheet (11) and embedded steel bar (12), pre-buried steel sheet (11) and embedded steel bar (12) fixed connection.
3. The variable-rigidity limiting anti-falling beam device according to claim 2, characterized in that: the anchor assembly (2) comprises an anchor steel plate (21), a plurality of anchor bolts (22) and an anchor sleeve (23), the anchor sleeve (23) penetrates through and is fixed on the embedded steel plate (11), and the anchor bolts (22) penetrate through the anchor steel plate (21) from the bottom and are in threaded connection with the anchor sleeve (23).
4. The variable-rigidity limiting anti-falling beam device as claimed in claim 3, wherein: the anti-falling assembly (3) further comprises a short baffle (33), the short baffle (33) is fixedly connected with the anchorage steel plate (21), and the short baffle (33) is in contact with one side, far away from the first long baffle (31), of the first ribbed slab (32) and is perpendicular to the first ribbed slab (32).
5. The variable-rigidity limiting anti-falling beam device according to claim 1, characterized in that: a first rubber plate (34) is fixedly arranged on one side, away from the first ribbed plate (32), of the first long baffle (31).
6. The variable-rigidity limiting anti-falling beam device as claimed in claim 1, wherein: and a reinforcing rib plate (311) is fixedly arranged at the joint of the first long baffle (31) and the anchorage steel plate (21).
7. The variable-rigidity limiting anti-falling beam device according to claim 1, characterized in that: the first rib plate (32) is provided with first supporting plates (321) on two opposite sides, and one side of each first supporting plate (321) is flush with one side of the first rib plate (32) close to the first long baffle (31).
8. The variable-rigidity limiting anti-falling beam device according to claim 3, characterized in that: prevent falling subassembly (3) still includes second long baffle (35), second floor (36) and second rubber slab (37), second long baffle (35) fixed mounting on anchorage steel sheet (21) and with first long baffle (31) are perpendicular, second rubber slab (37) fixed mounting in the one side of first floor (32) is kept away from in second long baffle (35), second floor (36) and anchorage steel sheet (21) fixed connection, second floor (36) and second long baffle (35) interval from last to down grow gradually, its top clearance is 0-1mm, bottom clearance more than or equal to 30mm.
9. The variable-rigidity limiting anti-falling beam device according to claim 8, characterized in that: and second supporting plates (361) are fixedly mounted on two sides of the second rib plates (36) respectively, and one sides of the second supporting plates (361) are flush with one sides, close to the second long baffle (35), of the second rib plates (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222678028.3U CN218345934U (en) | 2022-10-12 | 2022-10-12 | Variable-rigidity limiting anti-beam-falling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222678028.3U CN218345934U (en) | 2022-10-12 | 2022-10-12 | Variable-rigidity limiting anti-beam-falling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218345934U true CN218345934U (en) | 2023-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222678028.3U Active CN218345934U (en) | 2022-10-12 | 2022-10-12 | Variable-rigidity limiting anti-beam-falling device |
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| Country | Link |
|---|---|
| CN (1) | CN218345934U (en) |
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2022
- 2022-10-12 CN CN202222678028.3U patent/CN218345934U/en active Active
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