CN111236046A - Connection structure of steel structure - Google Patents
Connection structure of steel structure Download PDFInfo
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- CN111236046A CN111236046A CN202010082537.2A CN202010082537A CN111236046A CN 111236046 A CN111236046 A CN 111236046A CN 202010082537 A CN202010082537 A CN 202010082537A CN 111236046 A CN111236046 A CN 111236046A
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- main bearing
- steel
- connection
- bearing platform
- hollow
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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 connecting structure of a steel structure, which comprises a connecting steel beam, main bearing platforms, capping beams and truss beams, wherein a plurality of groups of capping beams are fixedly arrayed below the connecting steel beam to be used as supports of the connecting steel beam, the capping beams are fixed on the main bearing platforms, and the truss beams are arranged between two adjacent main bearing platforms; and a buffer assembly is further arranged between the main bearing platform and the cover beam and is used for buffering the vibration on the cover beam, so that the cover beam can perform micro displacement relative to the main bearing platform, the vibration transmission from the connecting steel beam on the auxiliary bearing platform is reduced, and a good damping effect is achieved.
Description
Technical Field
The invention relates to the field of steel structure bridges, in particular to a connecting structure of a steel structure.
Background
The resonance phenomenon is a process of continuously strengthening the positive feedback of energy, namely, when a heat seal object in the nature is stimulated by external force and the excitation frequency of the external force is just equal to the self-resonance frequency, resonance can occur at the moment, when the bridge is seen from the direction of the bridge, the bridge has a natural frequency f fixed, and when the frequency of external driving force applied to the bridge is f fixed and is equal to f fixed, resonance is generated.
With the rapid development of the building industry, the safety of the bridge is gradually enhanced, and at present, the bridge has problems that the bridge deck resonates with external excitation and vibration of the bridge deck is transmitted to the bridge piers to damage the bridge decks. Accordingly, those skilled in the art have provided a connection structure of steel structures to solve the problems suggested in the background art described above.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a steel structure connecting structure comprises a connecting steel beam, main bearing platforms, capping beams and truss beams, wherein a plurality of groups of capping beams are fixedly arrayed below the connecting steel beam to serve as supports of the connecting steel beam, the capping beams are fixed on the main bearing platforms, the truss beams are further arranged between two adjacent main bearing platforms, two groups of auxiliary bearing platforms are symmetrically fixed below the main bearing platforms, two groups of stand columns are symmetrically fixed below the auxiliary bearing platforms so as to disperse pressure borne by the main bearing platforms, and the stand columns are anchored in a foundation; and a buffer assembly is further arranged between the main bearing platform and the cover beam and is used for buffering the vibration on the cover beam, so that the cover beam can perform micro displacement relative to the main bearing platform, and the vibration transmission from the connecting steel beam on the auxiliary bearing platform is reduced.
Further, as preferred, the truss roof beam includes top truss, mount pad and hollow return bend, the top truss is fixed to lean on in the bottom of connecting the girder steel, the both ends bottom surface symmetry of top truss is fixed with the mount pad, the mount pad is fixed on main cushion cap to make the integral connection girder steel all supported by main cushion cap.
Further, as preferred, a plurality of ladder grooves have been seted up to one side that main cushion cap was kept away from to the mount pad to insert and establish hollow return bend, the length of hollow return bend is longer than the distance between the ladder groove that corresponds on two adjacent mount pads, thereby makes hollow return bend can connect between two ladder grooves with certain radian.
Further, as preferred, insert side by side between per two corresponding ladder grooves and have a plurality of hollow return bends, make it to constitute an arcwall face, and laid a plurality of vibrating members that differ in size between the hollow return bend at top and the truss, and the vibrating member in middle part is greater than the vibrating member of its both sides.
Further, as preferred, the vibrating part includes that deformable supports, elasticity return bend support and connecting seat, the top and the roof truss of connecting seat are fixed to support and lean on, the bottom circumference array of connecting seat has a plurality of elasticity return bends to support, the other end that elasticity return bend supported is fixed with deformable support, deformable support is contradicted with hollow return bend is fixed.
Preferably, a hollow bent pipe with a gradually decreasing length is further attached to the lower portion of the hollow bent pipe between the two stepped grooves at the bottommost portion.
Further, as preferred, the bent cap adopts the telescopic link to slide and sets up and be connected with buffering subassembly in main cushion cap body, buffering subassembly can provide the thick liquid for the mount pad when providing the buffering for the bent cap to fill hollow return bend, change its bending strength and natural frequency.
Further, as preferred, the buffering subassembly includes sliding tray, fixed plate, buffer spring and utricule, wherein the fixed plate is fixed in the inside bottom side of main cushion cap body, the array has multiunit buffer spring on the fixed plate, buffer spring's the other end and sliding tray are fixed to link to each other, the sliding tray sets up in main cushion cap for sliding, buffer spring's one end fixedly connected with telescopic link is kept away from to the sliding tray, the other end and the bent cap of telescopic link are fixed to be continuous, still be fixed with the utricule between buffer spring and the sliding tray, the open end of utricule and the bottom sealing connection of main cushion cap body, and be full of the dense fluid in the utricule.
Further, preferably, the bag body is communicated with the mounting seat by an L-shaped connecting pipe.
Further, preferably, the bent cap is fixedly connected with the connecting steel beam through a plurality of groups of cushion blocks.
Compared with the prior art, the invention has the beneficial effects that: two groups of auxiliary bearing platforms are symmetrically fixed below the main bearing platform, and two groups of stand columns are symmetrically fixed below the auxiliary bearing platforms, so that the pressure borne by the main bearing platform can be dispersed, and the integral structure is more stable; in addition, a buffer assembly is arranged between the main bearing platform and the cover beam and is used for buffering the vibration on the cover beam, so that the cover beam can perform micro displacement relative to the main bearing platform, the vibration transmission from the connecting steel beam on the auxiliary bearing platform is reduced, namely part of the vibration from the cover beam is consumed by the up-and-down reciprocating motion work of the telescopic rod, the energy transmitted from the cover beam to the upright post is very small, and a good damping effect is achieved; simultaneously, the buffer assembly can provide buffer for the bent cap and provide thick liquid for the mounting seat, so that the hollow bent pipe is filled, the bending strength and the natural frequency of the hollow bent pipe are changed, the natural frequency of the hollow bent pipe is changed in real time, the external excitation frequency is staggered with the natural frequency, and the influence of the bridge deck on the upright is reduced.
Drawings
FIG. 1 is a schematic structural view of a connection configuration of steel structures;
FIG. 2 is a partially enlarged schematic view of a connection structure of steel structures;
in the figure: 1. connecting the steel beams; 2. a column; 3. a secondary cushion cap; 4. a main bearing platform; 5. a capping beam; 6. a truss beam; 7. a fence; 8. a deformable support; 9. supporting by an elastic bent pipe; 10. a connecting seat; 11. a top truss; 12. a mounting seat; 13. a stepped groove; 14. a hollow bent pipe; 15. a main bearing platform body; 16. a telescopic rod; 17. cushion blocks; 18. a slide plate; 19. fixing a disc; 20. a buffer spring; 21. a capsule body; 22. and (4) connecting the pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example (b): referring to fig. 1-2, the present invention provides a technical solution: a connection structure of a steel structure comprises a connection steel beam 1, a main bearing platform 4, cover beams 5 and truss beams 6, wherein a plurality of groups of cover beams 5 are fixedly arrayed below the connection steel beam 1 to serve as supports of the connection steel beam, the cover beams 5 are fixed on the main bearing platform 4, and the truss beams 6 are arranged between two adjacent main bearing platforms 4, and the connection structure is characterized in that two groups of auxiliary bearing platforms 3 are symmetrically fixed below the main bearing platforms 4, two groups of upright columns 2 are symmetrically fixed below the auxiliary bearing platforms 3 so as to disperse pressure borne by the main bearing platforms 4, and the upright columns 2 are anchored in a foundation; and a buffer assembly is further arranged between the main bearing platform 4 and the cover beam 5 and is used for buffering the vibration on the cover beam 5, so that the cover beam 5 can perform micro displacement relative to the main bearing platform 4, and the vibration transmission from the connecting steel beam 1 on the auxiliary bearing platform 3 is reduced.
In a preferred embodiment, the truss girder 6 includes a top truss 11, a mounting seat 12 and a hollow elbow 14, the top truss 11 is fixedly abutted against the bottom of the connecting steel girder 1, the mounting seats 12 are symmetrically fixed to the bottom surfaces of the two ends of the top truss 11, and the mounting seats 12 are fixed on the main bearing platform 4, so that the connecting steel girder 1 can be supported by the main bearing platform 4.
On the basis of the above embodiment, one side of the mounting seat 12, which is far away from the main bearing platform 4, is provided with a plurality of stepped grooves 13 so as to insert the hollow elbow 14, and the length of the hollow elbow 14 is longer than the distance between the corresponding stepped grooves 13 on two adjacent mounting seats 12, so that the hollow elbow 14 can be connected between two stepped grooves 13 with a certain radian.
In this embodiment, a plurality of hollow bent pipes 14 are inserted side by side between every two corresponding stepped grooves 13, so that an arc-shaped surface can be formed, a plurality of vibrating parts with different sizes are arranged between the hollow bent pipe 14 at the top and the top truss 11, the vibrating part at the middle part is larger than the vibrating parts at two sides of the vibrating part, and the vibrating part feeds back the vibration on the bridge deck to the hollow bent pipe 14.
In this embodiment, the vibrating part includes that deformable supports 8, elasticity return bend support 9 and connecting seat 10, the top of connecting seat 10 supports with a fixed support of roof truss 11 and leans on, the bottom circumference array of connecting seat 10 has a plurality of elasticity return bends to support 9, the other end that elasticity return bend supported 9 is fixed with deformable support 8, deformable support 8 and the fixed conflict of hollow return bend 14.
In this embodiment, a hollow bent pipe 14 having a gradually decreasing length is sequentially attached to the lower portion of the hollow bent pipe 14 between the two bottom-most stepped grooves 13.
In this embodiment, the capping beam 5 is slidably disposed in the main bearing platform body 15 by using the telescopic rod 16 and connected to the buffering assembly, the buffering assembly can provide a buffer for the capping beam 5 and provide a thick liquid for the mounting seat 12 at the same time, so as to fill the hollow elbow 14 and change the bending strength and natural frequency of the hollow elbow 14, the natural frequency of each object is related to the strength, mass and shape of the object, and therefore when the thick liquid fills the hollow elbow 14, the bending strength and the overall mass of the object can be changed, so as to change the natural frequency of the hollow elbow 14, that is, the natural frequency of the hollow elbow 14 changes in real time, so that the external excitation frequency is staggered from the natural frequency, the process of absorbing energy from the outside cannot be continued, that is, there is no resonance foundation, and the influence of the bridge deck on the column due to resonance.
As shown in fig. 2, the damping assembly includes a slide plate 18, a fixed plate 19, a damping spring 20 and a bladder 21, wherein the fixed disc 19 is fixed on the inner bottom side of the main bearing platform body 15, a plurality of groups of buffer springs 20 are arrayed on the fixed disc 19, the other end of the buffer spring 20 is fixedly connected with the sliding disc 18, the sliding disc 18 is arranged in the main bearing platform 15 in a sliding way, one end of the sliding disc 18, which is far away from the buffer spring 20, is fixedly connected with an expansion link 16, the other end of the expansion link 16 is fixedly connected with the cover beam 5, a capsule body 21 is fixed between the buffer spring 20 and the sliding disc 18, the open end of the capsule body 21 is hermetically connected with the bottom of the main bearing platform body 15, and the bag body 21 is filled with thick liquid, part of the vibration from the cover beam 5 is consumed by the up-and-down reciprocating motion of the telescopic rod 16, the energy transmitted from the cover beam 5 to the upright post 2 by the vibration is very small, and a good damping effect is achieved.
In this embodiment, the bladder 21 is connected to the mounting seat 12 by an L-shaped connecting tube 22.
In this embodiment, the bent cap 5 is fixedly connected with the connecting steel beam 1 by a plurality of groups of cushion blocks 17.
In the invention, two groups of auxiliary bearing platforms 3 are symmetrically fixed below a main bearing platform 4, and two groups of upright posts 2 are symmetrically fixed below the auxiliary bearing platforms 3, so that the pressure borne by the main bearing platform 4 can be dispersed, and the whole structure is more stable; in addition, a buffer assembly is arranged between the main bearing platform 4 and the cover beam 5 and is used for buffering the vibration on the cover beam 5, so that the cover beam 5 can perform micro displacement relative to the main bearing platform 4, the vibration transmission from the connecting steel beam 1 on the auxiliary bearing platform 3 is reduced, namely part of the vibration from the cover beam 5 is consumed by the up-and-down reciprocating motion of the telescopic rod 16 to do work, the energy transmitted from the cover beam 5 to the upright post 2 is very small, and a good damping effect is achieved; meanwhile, the buffer assembly can provide buffer for the cover beam 5 and provide thick liquid for the mounting seat 12 at the same time, so that the hollow bent pipe 14 is filled, the bending strength and the natural frequency of the hollow bent pipe 14 are changed, the natural frequency of the hollow bent pipe 14 is changed in real time, the external excitation frequency is staggered with the natural frequency of the hollow bent pipe, and the influence of the bridge deck on the upright post due to resonance is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A connection structure of a steel structure comprises a connection steel beam, main bearing platforms, capping beams and truss beams, wherein a plurality of groups of capping beams are fixedly arrayed below the connection steel beam to serve as supports of the connection steel beam, the capping beams are fixed on the main bearing platforms, and the truss beams are arranged between two adjacent main bearing platforms; and a buffer assembly is further arranged between the main bearing platform and the cover beam and is used for buffering the vibration on the cover beam, so that the cover beam can perform micro displacement relative to the main bearing platform, and the vibration transmission from the connecting steel beam on the auxiliary bearing platform is reduced.
2. The connection structure of a steel structure according to claim 1, wherein the truss girder comprises a top truss, a mounting seat and a hollow elbow, the top truss is fixedly abutted against the bottom of the connection steel girder, the mounting seat is symmetrically fixed on the bottom surfaces of two ends of the top truss, and the mounting seat is fixed on the main bearing platform, so that the whole connection steel girder is supported by the main bearing platform.
3. The connecting structure of a steel structure according to claim 2, wherein the side of the mounting seat away from the main bearing platform is provided with a plurality of stepped grooves for inserting the hollow elbow, and the length of the hollow elbow is longer than the distance between the corresponding stepped grooves on two adjacent mounting seats, so that the hollow elbow can be connected between two stepped grooves with a certain radian.
4. A connection structure of steel structures according to claim 3, wherein a plurality of hollow bent pipes are inserted between every two corresponding stepped grooves side by side to form an arc-shaped surface, and a plurality of vibrating members with different sizes are arranged between the top hollow bent pipe and the top truss, and the vibrating member in the middle is larger than the vibrating members at both sides.
5. The connection structure of a steel structure according to claim 3, wherein the vibrating member includes a deformable support, an elastic bent pipe support and a connection seat, the top of the connection seat is fixedly abutted against the top truss, the bottom of the connection seat is circumferentially arrayed with a plurality of elastic bent pipe supports, the other end of each elastic bent pipe support is fixedly provided with a deformable support, and the deformable support is fixedly abutted against the hollow bent pipe.
6. A connection structure of steel structures according to claim 4, wherein a hollow elbow pipe having a gradually decreasing length is further attached to the lower portion of the hollow elbow pipe between the two lowermost stepped grooves in sequence.
7. The connecting structure of steel structures as claimed in claim 1, wherein the capping beam is slidably disposed in the main platform body by using a telescopic rod to connect with the buffering component, and the buffering component can provide buffering for the capping beam and provide a thick liquid for the mounting seat, so as to fill the hollow elbow and change the bending strength and natural frequency of the hollow elbow.
8. The connection structure of a steel structure according to claim 7, wherein the buffer assembly comprises a sliding tray, a fixed tray, buffer springs and a bag body, wherein the fixed tray is fixed on the bottom side of the interior of the main bearing platform body, a plurality of groups of buffer springs are arrayed on the fixed tray, the other ends of the buffer springs are fixedly connected with the sliding tray, the sliding tray is arranged in the main bearing platform in a sliding manner, one end of the sliding tray, far away from the buffer springs, is fixedly connected with a telescopic rod, the other end of the telescopic rod is fixedly connected with a cover beam, the bag body is further fixed between the buffer springs and the sliding tray, the open end of the bag body is hermetically connected with the bottom of the main bearing platform body, and thick liquid is filled in the bag body.
9. A connection arrangement for steel structures according to claim 8, wherein said bladder is arranged to communicate with the mounting seat by means of an L-shaped connecting tube.
10. The connection structure of a steel structure according to claim 1, wherein the capping beam is fixedly connected with the connection steel beam by adopting a plurality of groups of cushion blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010082537.2A CN111236046B (en) | 2020-02-07 | 2020-02-07 | Connection structure of steel structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010082537.2A CN111236046B (en) | 2020-02-07 | 2020-02-07 | Connection structure of steel structure |
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| CN111236046A true CN111236046A (en) | 2020-06-05 |
| CN111236046B CN111236046B (en) | 2021-06-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388184A (en) * | 2009-03-18 | 2012-03-21 | 维也纳科技大学 | Support construction having increased structural dampening |
| JP2018100514A (en) * | 2016-12-20 | 2018-06-28 | 株式会社ビービーエム | Bridge bearing device |
| CN207633197U (en) * | 2017-11-24 | 2018-07-20 | 警通建设（集团）有限公司 | Damping bridge pier |
| CN110258286A (en) * | 2019-08-05 | 2019-09-20 | 沈阳建筑大学 | A kind of prefabricated PC floorings and bridge |
| CN210013110U (en) * | 2019-04-29 | 2020-02-04 | 广东广达建设集团有限公司 | Bridge shock-absorbing structure |
-
2020
- 2020-02-07 CN CN202010082537.2A patent/CN111236046B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102388184A (en) * | 2009-03-18 | 2012-03-21 | 维也纳科技大学 | Support construction having increased structural dampening |
| JP2018100514A (en) * | 2016-12-20 | 2018-06-28 | 株式会社ビービーエム | Bridge bearing device |
| CN207633197U (en) * | 2017-11-24 | 2018-07-20 | 警通建设（集团）有限公司 | Damping bridge pier |
| CN210013110U (en) * | 2019-04-29 | 2020-02-04 | 广东广达建设集团有限公司 | Bridge shock-absorbing structure |
| CN110258286A (en) * | 2019-08-05 | 2019-09-20 | 沈阳建筑大学 | A kind of prefabricated PC floorings and bridge |
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| CN111236046B (en) | 2021-06-11 |
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Address after: No.91, Longhai Middle Road, Erqi District, Zhengzhou City, Henan Province, 450000 Patentee after: Zhengzhou Transportation planning Survey, Design and Research Institute Co.,Ltd. Address before: 450000 opposite gouzhao station, Lianhuo expressway, West Fourth Ring Road, high tech Zone, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU COMMUNICATIONS PLANNING SURVEY & DESIGN INSTITUTE |
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