CN109989335B - Wind-resistant shock-absorbing bridge suspender capable of adapting to multi-direction wind load - Google Patents
Wind-resistant shock-absorbing bridge suspender capable of adapting to multi-direction wind load Download PDFInfo
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- CN109989335B CN109989335B CN201910342122.1A CN201910342122A CN109989335B CN 109989335 B CN109989335 B CN 109989335B CN 201910342122 A CN201910342122 A CN 201910342122A CN 109989335 B CN109989335 B CN 109989335B
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- wind
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- guide rod
- rod body
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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 wind-resistant damping bridge suspender adaptable to multi-direction wind load, which comprises a guide rod body, wherein a central rod is arranged at the center of the guide rod body along the axial direction of the guide rod body, the central rod is arranged in the guide rod body in a self-rotating mode, damping blades are fixedly connected to the central rod and are rotatably arranged in a damping cavity through the central rod, and the wind-resistant blades are used for receiving wind energy on two sides of the guide rod body and transferring the wind energy to the damping blades through the central rod. The device takes the central rod as a main bearing object of the bridge, the guide rod body can share part of bearing capacity, and wind power drives the wind-resistant blades to rotate, so that the wind power is transmitted to the damping blades through the central rod, and the damping blades rotate in damping liquid to achieve the purpose of energy dissipation. The mode that this device blade set up is along the axial of guide arm body, is different from the type that sets up of other kinds of guide arms, can adapt to multi-direction wind-load, and wind-resistant performance is good, simple structure moreover, low cost, the practicality is better.
Description
Technical Field
The invention relates to the technical field of assembled bridges, in particular to a wind-resistant damping bridge suspender suitable for multidirectional wind loads.
Background
The suspension rod is generally used in bridge construction, endures wind and rain for a long time, and has a bad use environment, but the suspension rod is an important component in the bridge structure. As in suspension bridges, the suspension rods are rods connecting the suspension cables and the deck system, through which the load of the deck system is transferred to the suspension cables. With the continuous development of the bridge industry, various types of bridges are more and more. For example, as the span of a half-through or underslung arch bridge increases, the longer and more flexible the boom, the more sensitive it is to the wind, and the less stable it is to the wind.
The jib in the bridge when both sides receive the influence of wind, leads to wind to cause the vibration easily, among the prior art, has studied many jib structures, and the majority all increases relevant anti-wind device on the both sides of jib, but because wind probably blows to the jib or blows from the both sides of jib from all directions, consequently in the device now, is inhomogeneous to the ability of anti-wind in fact, can not deal with the blowing of multiple direction simultaneously, and adaptability is poor.
Disclosure of Invention
In view of this, the invention aims to provide a wind-resistant and shock-absorbing bridge hanger rod which can adapt to multidirectional wind loads, has good wind resistance, simple structure, low cost and good practicability and can adapt to multidirectional wind loads.
A wind-resistant damping bridge suspender adaptable to multi-direction wind load comprises a guide rod body and a wind-resistant device arranged on the guide rod body, wherein the guide rod body is of a hollow cylindrical structure, a central rod is arranged at the center of the guide rod body along the axial direction of the guide rod body, the central rod is arranged in the guide rod body in a self-rotating mode, a damping cavity is formed between the guide rod body and the central rod, damping liquid is filled in the damping cavity, the wind-resistant device comprises a wind-resistant blade and a damping blade, the central rod is in rotary sealing connection with the guide rod body, the damping blade is fixedly connected to the central rod and is rotatably arranged in the damping cavity through the central rod, the wind-resistant blade is fixedly connected to one section of the central rod positioned outside the guide rod body and is coaxially connected with the damping blade through the central rod, and the outer diameter of the wind-resistant blade is, the wind-resistant blades are used for receiving wind energy on two sides of the guide rod body and transferring the wind energy to the damping blades through the central rod.
Furthermore, the guide rod body comprises a plurality of outer cylinder units arranged along the axial direction of the guide rod body, two ends of each outer cylinder unit are connected with the central rod in a sealing mode, so that the damping cavity is formed inside each outer cylinder unit, and the wind resisting device is arranged between every two adjacent outer cylinder units in the axial direction of the guide rod body.
Furthermore, two wind resistance devices are arranged between two adjacent outer barrel units, two groups of wind resistance blades of the two wind resistance devices are arranged adjacently, and two groups of damping blades of the two wind resistance devices are arranged back to back and are respectively located in damping cavities of the two adjacent outer barrel units.
Furthermore, the wind-resistant blades are straight blades, and the straight blades are at least three and are uniformly distributed along the circumferential direction of the central rod.
Further, be in the axial of guide arm body be provided with the damping ring between two anti-wind device's the anti-wind blade, the damping ring is annular structure, the damping ring includes first shock attenuation piece and second shock attenuation piece, first shock attenuation piece and second shock attenuation piece are the half-circular arc that the symmetry set up and cooperate mutually and form a complete damping ring, be provided with the shock attenuation rib along the radial of damping ring between first shock attenuation piece and second shock attenuation piece and the well core rod, the shock attenuation rib adopts elastic material to make, and it is used for to correspond on the outer arris of two sets of anti-wind blade adjacent one side of two anti-wind devices first shock attenuation piece or second shock attenuation piece spacing groove, the width of spacing groove is greater than the thickness of first shock attenuation piece and second shock attenuation piece.
Furthermore, the outer edges of the two sets of wind resisting blades on the opposite sides are provided with abdicating grooves used for abdicating the outer barrel units, and the outer barrel units are located at one ends of the wind resisting blades and extend to the abdicating grooves along the axial direction of the guide rod body.
Further, the outer barrel unit is internally provided with a step, the step is used for axial positioning of the damping blade, a bearing mounting hole is formed in the center of the step, the central rod is arranged in the bearing mounting hole through a bearing, the central rod is in rotary sealing connection with the outer barrel unit through the bearing, and the step is detachably connected with the outer barrel unit.
Further, the step and the outer cylinder unit are detachably connected through threads.
Further, a positioning sleeve is arranged between the step and the damping blade in the axial direction of the guide rod body.
The invention has the beneficial effects that: the invention relates to a wind-resistant damping bridge suspender suitable for multidirectional wind load, which comprises a guide rod body, wherein a central rod is arranged at the center of the guide rod body along the axial direction of the guide rod body, the central rod is arranged in the guide rod body in a self-rotating mode, damping blades are fixedly connected to the central rod and are rotatably arranged in a damping cavity through the central rod, and the wind-resistant blades are used for receiving wind energy on two sides of the guide rod body and transmitting the wind energy to the damping blades through the central rod. The device takes the central rod as a main bearing object of the bridge, the guide rod body can share part of bearing capacity, and wind power drives the wind-resistant blades to rotate, so that the wind power is transmitted to the damping blades through the central rod, and the damping blades rotate in damping liquid to achieve the purpose of energy dissipation. The mode that this device blade set up is along the axial of guide arm body, is different from the type that sets up of other kinds of guide arms, can adapt to multi-direction wind-load, and wind-resistant performance is good, simple structure moreover, low cost, the practicality is better.
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 structural view of the present invention;
FIG. 2 is an enlarged view at C of FIG. 1;
FIG. 3 is a schematic view of the connection of the wind-resistant blades;
FIG. 4 is a schematic view of the structure of FIG. 1 taken along A-A;
fig. 5 is a schematic view of the structure of fig. 1 along B-B.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention, fig. 2 is an enlarged view of a point C in fig. 1, fig. 3 is a schematic connection view of a wind-resistant blade, fig. 4 is a schematic structural view along a-a in fig. 1, and fig. 5 is a schematic structural view along B-B in fig. 1.
The invention relates to a wind-resistant shock-absorbing bridge suspender suitable for multidirectional wind load, which comprises a guide rod body 1 and a wind-resistant device 2 arranged on the guide rod body 1, wherein the guide rod body 1 is of a hollow cylindrical structure, a central rod 3 is arranged at the center of the guide rod body 1 along the axial direction of the guide rod body 1, and the central rod 3 is arranged in the guide rod body 1 in a manner of rotating around itself. The center rod 3 penetrates through the guide rod body 1, the connection mode of the center rod 3 is different from that of the guide rod body 1, and the center rod 3 is rotatable, so that two ends of the center rod can be connected with a bridge through bearings, but two ends of the guide rod body 1 are fixedly connected with the bridge. A damping cavity 4 is formed between the guide rod body 1 and the central rod 3, and damping liquid is filled in the damping cavity 4. The damping fluid is made of the existing materials, damping oil and the like, can be filled with damping oil with different damping coefficients according to needs, can be applied to the conditions of different damping, and is relatively attached to the requirements of an assembly type.
In this embodiment, anti-wind device 2 includes anti-wind blade 201 and damping blade 202, well core rod 3 with 1 rotation sealing connection of guide arm body, damping blade 202 fixed connection is in well core rod 3 and passes through well core rod 3 rotationally sets up in the damping chamber 4, anti-wind blade 201 fixed connection is located the outer one section of guide arm body 1 and passes through in well core rod 3 and damping blade 202 coaxial coupling, anti-wind blade 201's blade external diameter is greater than the external diameter of guide arm body 1, anti-wind blade 201 is used for receiving the wind energy of 1 both sides of guide arm body and passes on for damping blade 202 through well core rod 3. The outer diameter of the wind-resistant blades 201 may be selected as desired.
According to the device, the central rod 3 is used as a main bearing object of a bridge, the guide rod body 1 can share part of bearing capacity, wind power drives the wind-resistant blades 201 to rotate, and therefore the damping blades 202 are transmitted to the central rod 3, and the damping blades 202 rotate in damping liquid to achieve the purpose of energy dissipation. The mode that this device blade set up is along the axial of guide arm body 1, is different from the type that sets up of other kinds of guide arms, can adapt to multi-direction wind-load, and wind-resistant performance is good, simple structure moreover, low cost, the practicality is better.
In this embodiment, the guide rod body 1 includes a plurality of outer cylinder units 101 arranged along the axial direction of the guide rod body 1, two ends of each outer cylinder unit 101 are hermetically connected with the central rod 3, so that the damping cavity 4 is formed inside each outer cylinder unit 101, and the wind-resistant device 2 is arranged between two adjacent outer cylinder units 101 in the axial direction of the guide rod body 1. This device sets up a plurality of urceolus units 101 and constitutes the guide arm body, can select the length of guide arm body 1 as required, has realized the detachable connected mode, and the requirement of relatively laminating assembled, especially on bridges such as suspension cable, because the length of suspender often is different, consequently selects differently, but this mode has adopted a plurality of urceolus units 101 to constitute the guide arm body, can change out the length that needs to wind-resistant performance is relatively stable.
In this embodiment, two wind-resistant devices 2 are disposed between two adjacent outer cylinder units 101, two sets of wind-resistant blades 201 of the two wind-resistant devices 2 are disposed adjacently, and two sets of damping blades 202 of the two wind-resistant devices 2 are disposed oppositely and located in the damping cavities 4 of two adjacent outer cylinder units 101 respectively. It can be understood that a plurality of wind resisting devices 2 can be arranged as required, and a plurality of groups of wind resisting blades 201 on the wind resisting devices 2 can also be arranged along the axial direction, and the groups are selected according to the requirement of damping.
In this embodiment, the wind-resistant blades 201 are straight blades, and the straight blades are at least three and are uniformly distributed along the circumferential direction of the central rod 3. Be in the axial of guide arm body 1 be provided with damper ring 5 between two anti-wind device 2's the anti-wind blade 201, damper ring 5 is the loop configuration, damper ring 5 includes first shock attenuation piece 501 and second shock attenuation piece 502, first shock attenuation piece 501 and second shock attenuation piece 502 are the half circular arc that the symmetry set up and cooperate mutually and form a complete damper ring 5, be provided with damping rib 503 along damper ring 5's radial between first shock attenuation piece 501 and second shock attenuation piece 502 and the well core rod 3, damping rib 503 adopts elastic material to make, and the correspondence is provided with on the outer arris of two sets of anti-wind blade 201 adjacent one side of two anti-wind devices 2 is used for the spacing groove 6 of first shock attenuation piece 501 or second shock attenuation piece 502, the width of spacing groove 6 is greater than the thickness of first shock attenuation piece 501 and second shock attenuation piece 502. Adopt damping ring 5, further closed the clearance between two adjacent anti-wind blade 201 and can carry out the shock attenuation simultaneously, reduced the unstable problem that the crosswind got into the clearance and caused.
In this embodiment, the outer edges of the two sets of wind-resistant blades 201 on the opposite sides are provided with the abdicating groove 7 for the outer cylinder unit 101 to abdicate, the outer cylinder unit 101 is located at one end of the wind-resistant blades 201 and extends to the abdicating groove 7 along the axial direction of the guide rod body 1.
In this embodiment, a step 8 is provided in the outer cylinder unit 101, the step 8 is used for axial positioning of the damping blade 202, a bearing mounting hole is provided at the center of the step 8, the central rod 3 is provided in the bearing mounting hole through a bearing 9, the central rod 3 is connected with the outer cylinder unit 101 in a rotating and sealing manner through the bearing 9, and the step 8 is detachably connected with the outer cylinder unit 101.
In this embodiment, the step 8 and the outer cylinder unit 101 are detachably connected through a thread, so that the step is convenient to detach and use, and has a sealing effect.
In this embodiment, a positioning sleeve is disposed between the step 8 and the damping blade 202 in the axial direction of the guide rod body 1, and is used for positioning the damping blade 202.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. A wind-resistant damping bridge suspender adaptable to multi-direction wind load is characterized by comprising a guide rod body and a wind-resistant device arranged on the guide rod body, wherein the guide rod body is of a hollow cylindrical structure, a central rod is arranged at the center of the guide rod body along the axial direction of the guide rod body, the central rod is arranged in the guide rod body in a self-rotating mode, a damping cavity is formed between the guide rod body and the central rod, damping liquid is filled in the damping cavity, the wind-resistant device comprises a wind-resistant blade and a damping blade, the central rod is in rotary sealing connection with the guide rod body, the damping blade is fixedly connected to the central rod and is rotatably arranged in the damping cavity through the central rod, the wind-resistant blade is fixedly connected to one section of the central rod, which is positioned outside the guide rod body, and is coaxially connected with the damping blade, the outer diameter of the wind-resistant blade is larger than that of the guide rod body, and the wind-resistant blade is used for receiving wind energy on two sides of the guide rod body and transmitting the wind energy to the damping blade through the central rod.
2. The multi-directional wind load adaptable wind resistance and vibration reduction bridge boom according to claim 1, wherein said guide bar body comprises a plurality of outer cylindrical units axially arranged along the guide bar body, both ends of said outer cylindrical units are hermetically connected with the central rod, so that said damping chamber is formed inside the outer cylindrical units, and said wind resistance device is arranged between two adjacent outer cylindrical units in the axial direction of the guide bar body.
3. The multi-directional wind load adaptable wind-resistant shock-absorbing bridge boom according to claim 2, wherein two wind-resistant devices are disposed between two adjacent outer cylinder units, two sets of wind-resistant blades of the two wind-resistant devices are disposed adjacently, and two sets of damping blades of the two wind-resistant devices are disposed back to back and are respectively located in the damping cavities of the two adjacent outer cylinder units.
4. The multi-directional wind load adaptable wind damping bridge boom of claim 3, wherein said wind resistant blades are straight blades, said straight blades are arranged in at least three pieces, and are evenly distributed along the circumference of the central rod.
5. The wind-resistant and shock-absorbing bridge boom adaptable to multidirectional wind load as in claim 4, wherein a shock-absorbing ring is arranged between the wind-resistant blades of the two wind-resistant devices in the axial direction of the guide rod body, the damping ring is of an annular structure and comprises a first damping sheet and a second damping sheet, the first damping sheet and the second damping sheet are symmetrically arranged semi-circular arcs and are matched with each other to form a complete damping ring, damping ribs are arranged between the first damping sheet and the central rod and between the second damping sheet and the central rod along the radial direction of the damping ring, the damping ribs are made of elastic materials, limiting grooves used for limiting the first damping pieces or/and the second damping pieces are correspondingly arranged on the outer edges of the adjacent sides of the two groups of wind-resistant blades of the two wind-resistant devices, and the width of each limiting groove is larger than the thickness of the first damping piece and the thickness of the second damping piece.
6. The wind-resistant and shock-absorbing bridge boom adapting to multidirectional wind load as claimed in claim 5, wherein the outer edges of two sets of wind-resistant blades on opposite sides are provided with abdicating grooves for abdicating the outer cylinder unit, and the outer cylinder unit is located at one end of the wind-resistant blade and extends into the abdicating grooves along the axial direction of the guide rod body.
7. The wind-resistant and shock-absorbing bridge boom adapting to multidirectional wind load as claimed in claim 6, wherein a step is arranged in the outer cylinder unit, the step is used for axial positioning of the damping blade, a bearing mounting hole is arranged at the center of the step, the central rod is arranged in the bearing mounting hole through a bearing, the central rod is in rotary sealing connection with the outer cylinder unit through the bearing, and the step is detachably connected with the outer cylinder unit.
8. The wind resistant and vibration damping bridge hanger rod adaptable to multidirectional wind load as in claim 7, wherein the step is detachably connected with the outer cylinder unit through threads.
9. The multi-directional wind load adaptable wind resistant, shock absorbing bridge boom of claim 8, wherein a locating sleeve is provided axially of the guide rod body between said step and said damping blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342122.1A CN109989335B (en) | 2019-04-26 | 2019-04-26 | Wind-resistant shock-absorbing bridge suspender capable of adapting to multi-direction wind load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342122.1A CN109989335B (en) | 2019-04-26 | 2019-04-26 | Wind-resistant shock-absorbing bridge suspender capable of adapting to multi-direction wind load |
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| Publication Number | Publication Date |
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| CN109989335A CN109989335A (en) | 2019-07-09 |
| CN109989335B true CN109989335B (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910342122.1A Active CN109989335B (en) | 2019-04-26 | 2019-04-26 | Wind-resistant shock-absorbing bridge suspender capable of adapting to multi-direction wind load |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112942094B (en) * | 2021-01-27 | 2022-12-06 | 中铁二十一局集团第三工程有限公司 | A check out test set for bridge bottom |
| CN112853940B (en) * | 2021-03-29 | 2022-09-16 | 哈尔滨职业技术学院 | External energy-consumption type auxiliary device for wind-resistant suspender of bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7146672B1 (en) * | 2005-09-23 | 2006-12-12 | Meheen H Joe | Tunable load sharing arch bridge |
| US8752225B2 (en) * | 2009-05-08 | 2014-06-17 | H. Joe Meheen | Tunable load sharing arch bridge |
| CN102409604B (en) * | 2011-09-01 | 2013-12-25 | 哈尔滨工业大学 | Device for damping and protecting bridge structural suspender |
| FR3061727A1 (en) * | 2017-01-06 | 2018-07-13 | Joao Antonio Crespo Fontes | SUSPENDED BRIDGE WITH LARGER DISTANCE BETWEEN THE PILLARS |
| CN106835946B (en) * | 2017-01-18 | 2018-09-21 | 核工业西南勘察设计研究院有限公司 | A kind of wind resistance damping device and pillar shock-absorbing suspension rod |
| CN206529695U (en) * | 2017-01-18 | 2017-09-29 | 核工业西南勘察设计研究院有限公司 | Board-like vibration damping suspension rod |
| CN206538673U (en) * | 2017-01-18 | 2017-10-03 | 核工业西南勘察设计研究院有限公司 | A kind of wind resistance damping device and pillar shock-absorbing suspension rod |
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