CN216973815U - Vibration suppression connecting bridge structure for multistage harvest and separation - Google Patents
Vibration suppression connecting bridge structure for multistage harvest and separation Download PDFInfo
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- CN216973815U CN216973815U CN202122481600.2U CN202122481600U CN216973815U CN 216973815 U CN216973815 U CN 216973815U CN 202122481600 U CN202122481600 U CN 202122481600U CN 216973815 U CN216973815 U CN 216973815U
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Abstract
The utility model belongs to the technical field of building structures, and particularly relates to a vibration suppression connecting bridge structure with multi-stage harvest and separation. The utility model comprises a multistage-divided tension assembly consisting of a tension body, a structure body connecting node, a fixed body connecting node, a guide device and a constraint unit, and through the connection between the structure body and the fixed body, the utility model can effectively reduce the structure micro-vibration and the vertical earthquake motion, is beneficial to realizing the light weight of a bridge connecting structure, and forms rich and beautiful visual effects.
Description
Technical Field
The utility model belongs to the technical field of building structures, and particularly relates to a vibration suppression connecting bridge structure with multi-stage harvest and separation.
Background
The long-span bridge structure is a widely existing structural form, and the application scene of the long-span bridge structure comprises but is not limited to residential buildings, public buildings, industrial buildings and road and bridge buildings, and the long-span bridge structure can generate obvious structural vibration under the excitation action of pedestrian load, vehicle load, equipment load and wind load so as to influence the comfort, even cause psychological panic of people, and can generate obvious structural response under the action of vertical earthquake, so that the vibration (shock) response of the long-span bridge structure needs to be controlled. Common control methods are as follows: increasing structural stiffness (e.g., increasing beam section size or truss height), increasing support points (e.g., adding structural columns to reduce span), changing structural style (e.g., raising the middle of the beam into an arch), applying Tuned Mass Dampers (TMD), and the like.
However, the prior art has the following disadvantages:
(1) the light and thin building effect cannot be realized by increasing the beam height or the truss height;
(2) the added structural column needs to bear the weight of a large-span structure, so that the section of the structural column is large, and the building effect is influenced;
(3) the arch structure requires a large lifting amount in the middle of the beam, which affects the building effect;
(4) TMDs are sensitive to vibration frequency, and a single TMD is generally more efficient at improving the vibration of the structure at a specific frequency, with a slight deviation in excitation frequency, and the damping efficiency will be significantly reduced. Because of the wide frequency band of seismic action, a single TMD typically does not significantly degrade the seismic response, and may even cause seismic response amplification. The joint application of multiple TMDs can broaden the vibration (shock) sensitive frequency range, but will put a significant burden on the structure.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a vibration suppression connecting bridge structure for multistage collection and separation and a design method thereof, so as to solve the technical problems in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a vibration suppressing connecting bridge structure of multistage collection and separation, which comprises: the tension assembly comprises a structure body, a fixing body, a structure support and a multi-stage contraction and separation; the multi-stage adduction tension assembly includes: the tension device comprises a multi-stage tension body, a structure body connecting node, a fixing body connecting node, a guiding device and a constraint unit;
in the longitudinal direction, the upper end of the uppermost one-stage tension body is connected with the structure body through the structure body connecting node, and the lower end of the lowermost one-stage tension body is connected with the fixing body through the fixing body connecting node; the uppermost stage of tension body is connected with the lowermost stage of tension body through a guide device;
in the transverse direction, adjacent guide devices of the same stage are connected through a constraint unit.
Preferably, a middle-stage tension body is further arranged between the uppermost stage tension body and the lowermost stage tension body; the tension body of the uppermost stage, the tension body of the middle stage and the tension body of the lowermost stage are connected sequentially through the guide device.
Preferably, the guide means comprises: and the guide connecting plate is provided with a plurality of connecting holes and is used for being connected with one ends of the tension body and the constraint unit.
Preferably, the boundary shape of the guide connecting plate is any one of the following shapes: polygonal, rounded polygonal, circular, elliptical, annular, sector, rounded sector.
Preferably, the extension lines of the tension bodies and the constraint units connected on the same guide connection plate are in the same point.
Preferably, a certain constraint unit is in the form of any one of the following: a tension body, a rigid rod; two ends of the tension body or the rigid compression bar are connected with the connecting hole of the guide connecting plate through pin roll joints;
preferably, the tension body is in the form of any one of a strand, a cable, a bar, a sheet, a cloth, a bar and a pipe; the tension body is made of any one of steel, stainless steel, aluminum alloy, carbon fiber, glass fiber and memory alloy.
Preferably, the multistage adduction tension assembly further comprises: a node protection device; the node protection device is arranged around the connecting node of the structure body or the connecting node of the fixed body.
Preferably, the multistage adduction tension assembly further comprises: a tension adjusting device; the tension adjusting device is arranged on the tension body.
Preferably, the tension assembly further comprises: an accessory function member; the auxiliary function member is disposed on the tension body, the restraint unit and the connection node thereof.
By adopting the technical scheme, the utility model has the following beneficial effects:
the utility model has strong universality, and can be widely applied to the response control of structural vibration (shock) under the loads of people, vehicles and equipment; the tension assembly is simple in structure and can be realized only by connecting the tension assemblies in multistage collection and separation between the structure body and the fixing body; the tensile body is fine in shape, and rich visual effects can be formed through the contraction and the division of the tensile body; the utility model has designability, and can realize the vibration reduction (shock) effect of different degrees by adjusting the tension of the tension assembly; the tension assembly has expandability, and can realize specific functions or create richer visual effects by attaching a function or a decoration member to the tension assembly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a structural body connection node, a fixed body connection node, a node protection device and a tension adjustment device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of a guide device according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
FIG. 5 is a schematic view of another guide according to an embodiment of the present invention;
fig. 6 is a schematic view of a vibration suppressing bridge structure in which the profile of a tension assembly of multi-step contraction is an accelerated narrowing type from the top down according to an embodiment of the present invention.
Fig. 7 is a schematic view of a vibration suppressing bridge structure in which the profile of a tension assembly of multistage adduction is an acceleration widening type from the top to the bottom according to an embodiment of the present invention.
Fig. 8 is a schematic view of a vibration suppressing bridge structure in which the profile of a tension assembly of multi-step adduction is a reduction-contraction narrowing type from the top down according to an embodiment of the present invention.
Figure 9 is a schematic view of a vibration suppressing bridge structure having a profile of a multi-step decoupled tension assembly of a deceleration broadening type from top to bottom according to an embodiment of the present invention.
Fig. 10 is a schematic view of an arrangement of the auxiliary functional members according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 10, the present application provides a vibration suppressing bridge structure with multi-stage damping, which includes: the structure comprises a structure body 1, a fixed body 2, a structure support 3 and a tension assembly 4 with multiple stages of contraction and separation; the structural body 1 is connected with the fixed body 2 through the structural support 3; the multi-stage adduction tension assembly 4 includes: a plurality of tension bodies 40, structural body connection nodes 41, fixing body connection nodes 42, guide means 43, and restraint units 44; wherein:
in the longitudinal direction, the upper end of the uppermost one-stage tension body 40 is connected with the structural body 1 through a structural body connecting node 41, and the lower end of the lowermost one-stage tension body 40 is connected with the fixing body 2 through a fixing body connecting node 42; the tension body 40 of the uppermost stage and the tension body 40 of the lowermost stage are connected by a guide means 43;
in the transverse direction, adjacent guides 43 of the same stage are connected by a restraining unit 44.
Preferably, an intermediate stage tension body 40 is further provided between the uppermost stage tension body 40 and the lowermost stage tension body 40; the tension body 40 of the uppermost stage, the tension body 40 of the middle stage, and the tension body 40 of the lowermost stage are connected in sequence by the guide means 43.
The tension components 4 of the multi-stage harvest in the embodiment play a central role in damping the structure. Since the tension body 40 is only subjected to tension, there is no problem of stability under compression, and therefore the cross-sectional dimension of the tension body 40 is not limited to the distance between the structural body 1 and the fixing body 2, and the slender form can be always maintained. In the vibration process of the structural body 1, the tension in the tension body 40 changes, but as long as the tension does not loosen, the constraint rigidity can be provided for the structural body 1, so that the actual span of the structural body 1 is reduced, and the natural vibration frequency of the structural body is improved. The larger the deviation between the self-vibration frequency of the structure and the frequency of the excitation load or the frequency doubling of the self-vibration frequency is, the smaller the probability of resonance of the structure is, and the smaller the vibration amplitude is, which is the mechanical action mechanism of the vibration reduction (shock) of the structure.
The tension body 40 may be made of various materials and implementations according to various requirements such as cost, functionality, availability, etc., including but not limited to metal and nonmetal materials such as steel, stainless steel, carbon fiber, glass fiber, aluminum alloy, memory alloy, etc., and implementations such as stranded wire, cable, rib, bar, sheet, cloth, pipe, etc.
The structure body connection node 41 may be fixed at the bottom of the structure body in a pin or lock clamp manner, or may be fixed in a through anchor manner, and is not limited to the above manner.
The fixing body connection node 42 may be fixed on the top of the fixing body in the form of a pin or a locking clip, or may be fixed in the form of a through anchor, and is not limited to the above form. For example: the fixture connection nodes 42 may be welded to the embedments 21 at the top of the reinforced concrete structure.
Preferably, said guide means 43 comprise: and the guide connecting plate is provided with a plurality of connecting holes which are connected with one ends of the tension body and the constraint unit.
Preferably, since the direction of the tensile force in the tension body 40 is along the direction of the tension body 40, in order to satisfy the basic mechanical principle, the stress in the plurality of tension bodies 40 and the restraint unit 44 connected to the same guiding device 43 should satisfy the balance condition, and the optimal arrangement is that the extension lines of the plurality of tension bodies 40 and the restraint unit 44 connected to the same guiding device 43 are in the same point.
Preferably, the guide link plates include, but are not limited to, polygonal, rounded polygonal, circular, oval, annular, as required by the pitch relationship of the tension bodies 40.
Preferably, the restraining element 44 is in the form of any one of: a tension body, a rigid rod; the two ends of the tension body or the rigid compression bar are connected with the connecting holes of the guide connecting plate through pin roll joints, so that the form of the tension assembly 4 with multi-stage contraction and separation has adjustability:
the shape profile of the tension assembly with multi-level contraction and separation obtained by the combined action of the guide device 43 and the restraint unit 44 can be in an acceleration narrowing type or an acceleration widening type from top to bottom, and at the moment, the restraint unit 44 is tensioned and can be realized by adopting a fine tension body;
the shape profile of the tension assembly with multi-stage contraction and separation obtained by the combined action of the guide device 43 and the restraint unit 44 can also be in a deceleration narrowing type or a deceleration widening type from top to bottom, and the restraint unit 44 is pressed at the moment and can be realized by adopting a rigid rod;
the shape and contour of the multi-stage contraction tension assembly obtained by the combined action of the guide device 43 and the restraint unit 44 can also be in an irregular contraction type, an irregular widening type and an alternate contraction and widening type, at the moment, the restraint units 44 at different positions can be stressed or pulled, and the type of the required restraint unit 44 can be correspondingly selected according to the tension and compression characteristics.
Preferably, the tension assembly 4 further comprises: a node protection device 45; the node protection device 45 is arranged around the structural body connection node 41 or the fixed body connection node 42. Particularly, the first-stage tension body 40 and the penultimate-stage tension body 40 are both single tension bodies 40, so that the method for connecting the structural body connection node 41 and the fixed body connection node 42 can be simplified, and the arrangement of the limiting device 45 is facilitated. The functions are as follows:
because the tension body 40 is fine in form and large in length, a continuous wind vibration response may be excited under the lateral wind load. The addition of the node protection device 45 near the structural body connecting node 41 or the fixed body connecting node 42 can prevent the connecting node from fatigue failure under long-term wind vibration. An alternative form is: the support bar 451 extending from the structure body 1 or the fixing body 2 fixes the stopper ring 452, and the tension body 40 passes through the stopper ring 452 and then is connected to the structure body connection node 41 or the fixing body connection node 42. The small gap between the stop collar 452 and the tensioned body 40 may be filled with a filler material 453, including but not limited to rubber, silicone, etc.
Preferably, the tension assembly 4 further comprises: a tension adjusting device 46; the tension adjusting means 46 is provided on the tension body 40.
Preferably, the tension adjusting means 46 includes, but is not limited to, screw threading or hydraulic means, and is not limited to adjustment by means of manual, mechanical assistance or automatic control by electric power, and is not limited to being provided at the top, middle or bottom of the tension body 40.
Preferably, the tension assembly 4 further comprises: an auxiliary function member 47. The auxiliary function components 47 include, but are not limited to, lighting devices, audio devices, bells, billboards, signs, etc., and can be fixed by various means such as winding, clamping, hanging, etc.
Preferably, since the anchoring body 2 is intended to help the structural body to damp vibrations, it is characterized by not moving under all possible forces exerted thereon by the tension assemblies 4 or by a substantially smaller movement than the structural body 1, in typical forms including, but not limited to: the weight of the fixing body 2 placed on the ground is large enough not to be pulled; the fixed body 2 is buried underground, so that the fixed body and the soil covered on the fixed body have enough weight and cannot be pulled; the fixing body 2 is fixed by the combined action between the foundation such as the uplift anchor rod, the uplift pile and the like and the foundation; the fixed body 2 is a part of the structure body 1; the fixed body 2 is a structure other than the structure body 1.
Preferably, the structural support 3 connecting the structural body 1 and the fixing body 2 can be rigid, hinged, semi-rigid, sliding, elastic, etc., and the number of the structural support is not limited (one, two or more), the distribution position is not limited (not limited to the internal, peripheral or external part of the structural body), and the arrangement elevation is not limited (not limited to the support from the bottom, the side support or the top of the structural body). For example, when the structural body plane is polygonal, the structural supports may be disposed wholly or partially within the polygon boundary corners, edges, or interior.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A vibration suppressing connecting bridge structure of multistage harvest and separation is characterized by comprising: the tension assembly comprises a structure body, a fixing body, a structure support and a multi-stage contraction and separation; the multi-stage adduction tension assembly includes: the tension device comprises a multi-stage tension body, a structure body connecting node, a fixing body connecting node, a guiding device and a constraint unit;
in the longitudinal direction, the upper end of the uppermost stage of tension body is connected with the structure body through the structure body connecting node, and the lower end of the lowermost stage of tension body is connected with the fixing body through the fixing body connecting node; the uppermost stage of tension body is connected with the lowermost stage of tension body through a guide device;
in the transverse direction, adjacent guide devices of the same stage are connected through a constraint unit.
2. The bridging structure according to claim 1, wherein intermediate stage tension bodies are further provided between the uppermost stage tension body and the lowermost stage tension body; the uppermost stage of tension body, the middle stage of tension body and the lowermost stage of tension body are connected sequentially through the guide device.
3. The bridging structure of claim 1 wherein the guide means comprises: and the guide connecting plate is provided with a plurality of connecting holes and is used for being connected with one ends of the tension body and the constraint unit.
4. The bridging structure of claim 3 wherein the boundary of the guide web is shaped to be any one of: polygonal, circular, elliptical, annular, sector.
5. A bridging structure according to claim 3 wherein the extensions of the tension bodies and the restraining elements connected to the same guide web are co-located.
6. A bridging structure according to claim 3 wherein the restraining element is in the form of any one of: a tension body, a rigid rod; and two ends of the tension body or the rigid rod are connected with the connecting holes of the guide connecting plates through pin roll joints.
7. The bridging structure of claim 1, wherein the multi-stage adduction tension assembly further comprises: a node protection device; the node protection device is arranged around the connecting node of the structure body or the connecting node of the fixed body.
8. The bridging structure of claim 1, wherein the multi-stage adduction tension assembly further comprises: a tension adjusting device; the tension adjusting device is arranged on the tension body.
9. The bridging structure of claim 1, wherein the tension assembly further comprises: an accessory function member; the auxiliary function member is disposed on the tension body, the restraint unit and the connection node thereof.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122481600.2U CN216973815U (en) | 2021-10-14 | 2021-10-14 | Vibration suppression connecting bridge structure for multistage harvest and separation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122481600.2U CN216973815U (en) | 2021-10-14 | 2021-10-14 | Vibration suppression connecting bridge structure for multistage harvest and separation |
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| CN216973815U true CN216973815U (en) | 2022-07-15 |
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| CN202122481600.2U Active CN216973815U (en) | 2021-10-14 | 2021-10-14 | Vibration suppression connecting bridge structure for multistage harvest and separation |
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