CN214089438U - A connection structure between lower floor steel drawbridge and pier stud for double-deck bridge - Google Patents
A connection structure between lower floor steel drawbridge and pier stud for double-deck bridge Download PDFInfo
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- CN214089438U CN214089438U CN202022560052.8U CN202022560052U CN214089438U CN 214089438 U CN214089438 U CN 214089438U CN 202022560052 U CN202022560052 U CN 202022560052U CN 214089438 U CN214089438 U CN 214089438U
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Abstract
The utility model relates to a connection structure between lower floor's steel draw bridge and pier stud for double-deck bridge, including backing plate and otic placode, the backing plate level set up and with pier stud fixed connection, the otic placode also level set up and with the bridge limit fixed connection of lower floor's steel draw bridge, the otic placode includes upper ear flitch and lower ear flitch, the backing plate is in between upper ear flitch and the lower ear flitch, be provided with between otic placode and the backing plate and be used for carrying out the connecting piece connected between them, the bar hole has been seted up on the backing plate, the length direction in bar hole is unanimous with the length direction of lower floor's steel draw bridge, the connecting piece slides and sets up downtheholely at the bar. This application has the advantage of being convenient for release temperature stress under the self vibration's of reduction lower floor suspension bridge the condition.
Description
Technical Field
The application relates to the field of bridge structural design, in particular to a connecting structure between a lower-layer steel suspension bridge and a pier stud of a double-layer bridge.
Background
At present, a lot of cities use double-deck bridge gradually, and double-deck bridge's benefit lies in, and upper steel draw bridge can lead to the car, and lower floor's steel draw bridge can supply pedestrian and non-motor vehicle to pass. However, in the design of the double-layer bridge, the lower layer steel suspension bridge is often influenced by the upper layer bridge and self vibration, so that the safety and the pedestrian comfort of the lower layer steel suspension bridge are greatly reduced.
Aiming at the related technologies, the inventor thinks that the defects exist that the temperature stress of the lower steel suspension bridge is large due to the fact that the lower steel suspension bridge is generally a steel structure and is influenced by temperature change, and if the longitudinal displacement of the lower steel suspension bridge is limited, the temperature stress of the whole lower steel suspension bridge is large, so that the temperature stress is not easy to release, the local deformation is generated, and the safety of the lower steel suspension bridge is influenced.
SUMMERY OF THE UTILITY MODEL
In order to be convenient for release temperature stress under the self vibration's of reduction lower floor suspension bridge condition, this application provides a connection structure between lower floor steel suspension bridge and the pier stud for double-deck bridge.
The application provides a connection structure that is used for lower floor steel drawbridge of double-deck bridge and pier stud between adopt following technical scheme:
the utility model provides a connection structure between lower floor's steel draw bridge and pier stud for double-deck bridge, includes backing plate and otic placode, the backing plate level set up and with pier stud fixed connection, the otic placode also the level set up and with the bridge limit fixed connection of lower floor's steel draw bridge, the otic placode includes upper ear flitch and lower ear flitch, the backing plate is in between upper ear flitch and the lower ear flitch, be provided with between otic placode and the backing plate and be used for carrying out the connecting piece connected between them, the bar hole has been seted up on the backing plate, the length direction in bar hole is unanimous with the length direction of lower floor's steel draw bridge, the connecting piece slides and sets up downtheholely at the bar.
By adopting the technical scheme, when the lower-layer steel suspension bridge is connected with the pier stud, the base plate on the pier stud is horizontally placed between the upper lug attachment plate and the lower lug attachment plate and is connected through the connecting piece, so that the base plate is connected with the lug plates, and the connecting piece is arranged in the strip-shaped hole in a sliding manner, namely if the lower-layer steel suspension bridge vibrates after being connected with the pier stud, the vibration in the direction vertical to the length direction of the lower-layer steel suspension bridge on the horizontal plane, namely the transverse vibration is limited, but the vibration in the direction parallel to the length direction of the lower-layer steel suspension bridge can be realized, because the strip-shaped hole is formed in the base plate, and the length direction of the strip-shaped hole is consistent with the length direction of the lower-layer steel suspension bridge, so that the vibration of the lower-layer steel suspension bridge in the length direction of the lower-layer steel suspension bridge can be converted into the sliding of the connecting piece in the length direction of the strip-shaped hole, namely, the transverse displacement of the lower steel suspension bridge is blocked, but the longitudinal displacement of the lower steel suspension bridge is allowed to release the temperature stress. After the arrangement, the self vibration of the lower-layer bridge can be reduced to a certain extent, and the temperature stress can be released conveniently.
Preferably, the connecting piece includes the peg, first pinhole has all been seted up on upper ear flitch and the lower ear flitch, the peg is connected upper ear flitch, backing plate and lower ear flitch through first pinhole and bar hole.
By adopting the technical scheme, when the lug plate is connected with the base plate, the base plate is firstly placed between the upper lug pasting plate and the lower lug pasting plate, so that the first pin hole and the strip-shaped hole are opposite to each other in the vertical direction, and then the plug pin is directly inserted from top to bottom, so that the plug pin firstly passes through the first pin hole on the upper lug pasting plate, then passes through the strip-shaped hole on the base plate and finally passes through the first pin hole on the lower lug pasting plate, and the connection between the lug plate and the base plate can be realized, thereby achieving the effect of more convenient connection of the lug plate and the base plate; likewise, when the lug plate and the base plate are disassembled, the inserting pins are directly lifted upwards vertically, and the effect of disassembling the lug plate and the base plate is achieved.
Preferably, the edges of the upper ear pasting plate and the lower ear pasting plate are both arranged in a chamfer angle.
By adopting the technical scheme, the chamfer angle at the edge of the upper ear flitch and the lower ear flitch is arranged to ensure that the connecting part is smooth and barrier-free when mechanical rotation occurs, thereby reducing the collision between different structures to a certain extent.
Preferably, the cross-sectional shape of the bayonet pin is cylindrical.
Through adopting above-mentioned technical scheme, the bayonet pin adopts cylindrically after, can improve the mobility when connection structure department rotates to a certain extent, can allow to take place relative rotation between otic placode and the backing plate promptly, further increaseing the release of temperature stress.
Preferably, the bar downthehole slip of setting up is provided with the guide block, the both sides of guide block laminate mutually with the hole wall in bar hole respectively, set up on the guide block and supply bayonet pin male second pinhole.
By adopting the technical scheme, when the joint of the lug plate and the base plate is longitudinally displaced, namely the direction of the longitudinal displacement is consistent with the length direction of the lower-layer steel suspension bridge and the length direction of the strip-shaped hole; lower floor's steel draw bridge just can turn into the guide block when the vibration itself and slide at the length direction in bar hole, the setting up of guide block then is in order to let the peg slide more smoothly in the bar downthehole when self vibration takes place for lower floor's steel draw bridge, also effectively guarantees the longitudinal displacement of connection structure department to a certain extent.
Preferably, the sliding tray has been seted up on the inside wall in bar hole and along the length direction in bar hole, be provided with the sliding block on the lateral wall of guide block, the sliding block with the cooperation is pegged graft to the sliding tray.
Through adopting above-mentioned technical scheme, back in the sliding tray on the sliding block on inserting the bar downthehole wall on the guide block, the guide block just can receive the restriction in the ascending displacement of vertical side, and the guide block only can slide and be difficult for coming off from the bar downthehole in the length direction in bar hole promptly, and then has guaranteed the sliding stability of guide block to a certain extent.
Preferably, the inner walls of the strip-shaped holes and the inner wall of the sliding groove are coated with polytetrafluoroethylene layers.
By adopting the technical scheme, the polytetrafluoroethylene is generally called as a non-stick coating or an easy-to-clean material. The material has the characteristics of high temperature resistance and extremely low friction coefficient, so that the material is coated on the inner wall of the strip-shaped hole and the inner wall of the sliding groove, and the sliding block and the guide block can slide more smoothly.
Preferably, the both ends of bayonet pin all are connected with the threaded rod coaxially, threaded sleeve is equipped with the anticreep nut on the threaded rod.
Through adopting above-mentioned technical scheme, after the cover was equipped with the anticreep nut on the threaded rod, can prevent to a certain extent that the peg pin breaks away from in first pinhole and the second pinhole to can improve the connection stability in peg pinhole.
In summary, the present application includes at least one of the following beneficial technical effects:
when the lower layer steel suspension bridge is connected with the pier stud, firstly, the base plate on the pier stud is horizontally placed between the upper ear flitch and the lower ear flitch, and is connected through the connecting piece, so that the cushion plate is connected with the ear plate, and the connecting piece is arranged in the strip-shaped hole in a sliding way, namely, if the lower layer steel suspension bridge vibrates after being connected with the pier stud, the lower layer steel suspension bridge vibrates in the direction vertical to the length direction of the lower layer steel suspension bridge on the horizontal plane, namely, the transverse vibration can be limited, but the vibration in the direction parallel to the length direction of the lower steel suspension bridge can be realized because the backing plate is provided with the strip-shaped hole, the length direction of the strip-shaped hole is consistent with the length direction of the lower layer steel suspension bridge, so that the vibration of the lower layer steel suspension bridge in the length direction of the lower layer steel suspension bridge is converted into the sliding of the connecting piece in the length direction of the strip-shaped hole, namely, the transverse displacement of the lower steel suspension bridge is blocked, but the longitudinal displacement of the lower steel suspension bridge is allowed to release the temperature stress. After the arrangement, the self vibration of the lower-layer bridge can be reduced to a certain degree, and the temperature stress can be released conveniently;
when the connection part of the ear plate and the base plate is longitudinally displaced, namely the longitudinal displacement direction is consistent with the length direction of the lower steel suspension bridge and is also consistent with the length direction of the strip-shaped hole; the lower layer steel suspension bridge can be converted into a guide block to slide in the length direction of the strip-shaped hole when vibrating, and the guide block is arranged to enable the plug pins to slide more smoothly in the strip-shaped hole when the lower layer steel suspension bridge vibrates per se, so that the longitudinal displacement of the connecting structure is effectively ensured to a certain extent;
after the sliding block on the guide block inserted the sliding tray on the downthehole wall of bar, the guide block just can receive the restriction in the ascending displacement of vertical side, and the guide block only can slide on the length direction in bar hole promptly and be difficult for coming off from the bar is downthehole, and then has guaranteed the sliding stability of guide block to a certain extent.
Drawings
Fig. 1 is a partial structural schematic diagram of an embodiment of the present application.
Fig. 2 is an exploded schematic view of an embodiment of the present application.
Description of reference numerals: 1. a base plate; 11. a strip-shaped hole; 111. a sliding groove; 2. an ear plate; 21. an upper ear pasting plate; 22. a lower ear pasting plate; 23. a first pin hole; 3. pier studs; 4. a lower layer steel suspension bridge; 5. inserting pins; 6. a guide block; 61. a second pin hole; 62. a slider; 7. a threaded rod; 71. anti-drop nut.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
In the field of bridges, double-layer bridges are provided with two layers as the name implies, wherein the upper layer is generally a motor vehicle lane, and the lower layer is a non-motor vehicle lane and a pedestrian passage; the pier stud 3 is the foundation of each bridge, and the bridge deck is erected on a plurality of vertically arranged pier studs 3, such as a river-crossing bridge or pier studs 3 crossing the river bridge are erected in water; therefore, the pier stud 3 is connected with the upper layer steel suspension bridge and the lower layer steel suspension bridge 4. And in the long-term use process, the lower steel suspension bridge 4 is influenced by the upper bridge and self vibration, and can generate stronger vibration, namely, pedestrians can feel the shaking feeling on the bridge. If fix the prevention through connection structure to lower floor steel suspension bridge 4 and rock the case, the temperature stress of lower floor steel suspension bridge 4 self is difficult for releasing again and goes out, has consequently designed this application.
The embodiment of the application discloses a connection structure between lower floor steel drawbridge and pier stud for double-deck bridge. Referring to fig. 1 and 2, the connection structure between the lower steel suspension bridge and the pier stud of the double-layer bridge comprises a base plate 1 and an ear plate 2, wherein the base plate 1 is horizontally arranged and fixedly connected with the pier stud 3, and the ear plate 2 is also horizontally arranged and fixedly connected with the bridge edge of the lower steel suspension bridge 4; the ear plate 2 comprises an upper ear pasting plate 21 and a lower ear pasting plate 22, and the cushion plate 1 is positioned between the upper ear pasting plate 21 and the lower ear pasting plate 22; be provided with between otic placode 2 and the backing plate 1 and be used for carrying out the connecting piece that connects between them, seted up bar hole 11 on the backing plate 1, the length direction in bar hole 11 is unanimous with the length direction of lower floor's steel draw bridge 4, and the connecting piece just slides and sets up in bar hole 11.
As shown in fig. 1 and 2, the connecting member comprises a plug pin 5, first pin holes 23 are formed in the upper ear pasting plate 21 and the lower ear pasting plate 22, and the plug pin 5 connects the upper ear pasting plate 21, the backing plate 1 and the lower ear pasting plate 22 through the first pin holes 23 and the strip-shaped holes 11; the cross-sectional shape of the bayonet pin 5 is cylindrical, and the cross-sectional shape of the first pin hole 23 is also circular; after the inserting pin 5 is cylindrical, the maneuverability of the connecting structure during rotation can be improved to a certain extent, namely, the ear plate 2 and the base plate 1 can be allowed to rotate relatively, and the release of temperature stress is further increased.
When the ear plate 2 is connected with the base plate 1, the base plate 1 is firstly placed between an upper ear attachment plate 21 and a lower ear attachment plate 22, so that a first pin hole 23 is opposite to a strip-shaped hole 11 in the vertical direction, and then a plug pin 5 is directly inserted from top to bottom, namely the plug pin 5 firstly passes through the first pin hole 23 on the upper ear attachment plate 21, then passes through the strip-shaped hole 11 on the base plate 1, and finally passes through the first pin hole 23 on the lower ear attachment plate 22, so that the connection between the ear plate 2 and the base plate 1 can be realized, and the effect of conveniently connecting the ear plate 2 and the base plate 1 is achieved; likewise, reason, when dismantling otic placode 2 and backing plate 1, directly to 5 vertical upwards propositions of peg 5 can, reach and dismantle also comparatively convenient effect of otic placode 2 and backing plate 1.
As shown in fig. 1 and 2, the edges of the upper ear pasting plate 21 and the lower ear pasting plate 22 are both chamfered; the chamfering arrangement at the plate edges of the upper ear pasting plate 21 and the lower ear pasting plate 22 is used for ensuring that the connecting part is smooth and has no obstacle when in mechanical rotation, thereby reducing the collision among different structures to a certain extent; in the embodiment, the shape of the ear plate 2 can be adjusted, and the size of the chamfer arc can be changed.
As shown in fig. 1 and 2, the guide block 6 is slidably disposed in the strip-shaped hole 11 along the length direction of the strip-shaped hole 11, two sides of the guide block 6 are respectively attached to inner holes of the strip-shaped hole 11, the guide block 6 is provided with a second pin hole 61 for inserting the plug pin 5, and the second pin hole 61 has the same shape and size as the first pin hole 23.
When the connection part of the ear plate 2 and the base plate 1 is longitudinally displaced, namely the longitudinal displacement direction is consistent with the length direction of the lower steel suspension bridge 4 and the length direction of the strip-shaped hole 11; lower floor's steel draw bridge 4 self just can turn into guide block 6 and slide at the length direction in bar hole 11 when the vibration, and the setting of guide block 6 then is in order to let the peg 5 slide more smoothly in bar hole 11 when lower floor's steel draw bridge 4 takes place self vibration, also effectively guarantees the longitudinal displacement of connection structure department to a certain extent.
As shown in fig. 1 and 2, a sliding groove 111 is formed in the inner side wall of the strip-shaped hole 11 and along the length direction of the strip-shaped hole 11, a sliding block 62 is arranged on the side wall of the guide block 6, and the sliding block 62 is in inserted fit with the sliding groove 111; moreover, polytetrafluoroethylene layers are coated on the inner walls of the strip-shaped holes 11 and the inner walls of the sliding grooves 111; after the sliding block 62 on the guide block 6 is inserted into the sliding groove 111 on the inner wall of the strip-shaped hole 11, the displacement of the guide block 6 in the vertical direction is limited, that is, the guide block 6 only slides in the length direction of the strip-shaped hole 11 and is not easy to fall off from the strip-shaped hole 11, so that the sliding stability of the guide block 6 is ensured to a certain extent; polytetrafluoroethylene, in turn, is commonly referred to as a "non-stick coating" or "easy-to-clean material". The material has the characteristics of high temperature resistance and extremely low friction coefficient, so that the sliding block 62 and the guide block 6 can be more smoothly slid by coating the material on the inner wall of the strip-shaped hole 11 and the inner wall of the sliding groove 111.
As shown in fig. 1 and 2, two ends of the plug pin 5 are coaxially connected with a threaded rod 7, and an anti-drop nut 71 is sleeved on the threaded rod 7 in a threaded manner; after the threaded rod 7 is sleeved with the anti-drop nut 71, the plug pin 5 can be prevented from being separated from the first pin hole 23 and the second pin hole 61 to a certain extent, so that the connection stability of the plug pin hole can be improved.
The implementation principle of the connection structure between the lower layer steel suspension bridge and the pier stud for the double-layer bridge is as follows: when the lower-layer steel suspension bridge 4 is connected with the pier stud 3, firstly, the base plate 1 on the pier stud 3 is horizontally placed between the upper ear attachment plate 21 and the lower ear attachment plate 22 and is connected through the inserting pin 5, so that the base plate 1 is connected with the ear plate 2, and the inserting pin 5 is arranged in the strip-shaped hole 11 in a sliding mode through the guide block 6, namely, if the lower-layer steel suspension bridge 4 vibrates after being connected with the pier stud 3, the vibration in the direction perpendicular to the length direction of the lower-layer steel suspension bridge 4 on the horizontal plane, namely, the transverse vibration is limited; but the vibration on the length direction that is on a parallel with lower floor's steel draw bridge 4 just can realize, the reason lies in having seted up bar hole 11 on backing plate 1, and the length direction in bar hole 11 is unanimous with the length direction of lower floor's steel draw bridge 4 again, and consequently lower floor's steel draw bridge 4 vibration on its self length direction just can be transformed into the slip of bayonet pin 5 on the length direction in bar hole 11, blocks the lateral displacement of lower floor's steel draw bridge 4 promptly but allows the longitudinal displacement of lower floor's steel draw bridge 4 to release temperature stress. After the arrangement, the self vibration of the lower-layer bridge can be reduced to a certain extent, and the temperature stress can be released conveniently. Also, in the present embodiment, the limitation of the lateral displacement may also be achieved by a rubber pad.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a connection structure between lower floor steel drawbridge and pier stud for double-deck bridge, its characterized in that: including backing plate (1) and otic placode (2), backing plate (1) level set up and with pier stud (3) fixed connection, otic placode (2) also level set up and with the bridge limit fixed connection of lower floor's steel draw bridge (4), otic placode (2) include upper ear flitch (21) and lower ear flitch (22), backing plate (1) is in between upper ear flitch (21) and lower ear flitch (22), be provided with between otic placode (2) and backing plate (1) and be used for carrying out the connecting piece connected between them, strip hole (11) have been seted up on backing plate (1), the length direction of strip hole (11) is unanimous with the length direction of lower floor's steel draw bridge (4), the connecting piece slides and sets up in strip hole (11).
2. The connection structure between the lower steel suspension bridge and the pier stud for the double-deck bridge according to claim 1, wherein: the connecting piece includes bayonet (5), first pinhole (23) have all been seted up on upper ear flitch (21) and lower ear flitch (22), bayonet (5) are connected upper ear flitch (21), backing plate (1) and lower ear flitch (22) through first pinhole (23) and bar hole (11).
3. The connection structure between the lower steel suspension bridge and the pier stud for the double-deck bridge of claim 2, wherein: the edge of the upper ear pasting plate (21) and the edge of the lower ear pasting plate (22) are both arranged in a chamfer way.
4. The connection structure between the lower steel suspension bridge and the pier stud for the double-deck bridge of claim 2, wherein: the cross section of the plug pin (5) is cylindrical.
5. The connection structure between the lower steel suspension bridge and the pier stud for the double-deck bridge according to claim 1, wherein: the utility model discloses a bolt, including bar hole (11), bar hole (11) are provided with guide block (6) in the slip, the both sides of guide block (6) are laminated with the hole wall in bar hole (11) respectively mutually, offer on guide block (6) and supply peg (5) male second pinhole (61).
6. The connection structure between the lower steel suspension bridge and the pier stud for the double-deck bridge of claim 5, wherein: sliding tray (111) have been seted up on the inside wall in bar hole (11) and along the length direction in bar hole (11), be provided with sliding block (62) on the lateral wall of guide block (6), sliding block (62) with sliding tray (111) are pegged graft the cooperation.
7. The connection structure between the lower steel suspension bridge and the pier stud for the double-deck bridge of claim 6, wherein: and polytetrafluoroethylene layers are respectively coated on the inner wall of the strip-shaped hole (11) and the inner wall of the sliding groove (111).
8. The connection structure between the lower steel suspension bridge and the pier stud for the double-deck bridge of claim 2, wherein: the both ends of bayonet (5) all are connected with threaded rod (7) coaxial line, threaded rod (7) are gone up the thread bush and are equipped with anticreep nut (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022560052.8U CN214089438U (en) | 2020-11-06 | 2020-11-06 | A connection structure between lower floor steel drawbridge and pier stud for double-deck bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022560052.8U CN214089438U (en) | 2020-11-06 | 2020-11-06 | A connection structure between lower floor steel drawbridge and pier stud for double-deck bridge |
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| CN214089438U true CN214089438U (en) | 2021-08-31 |
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| CN202022560052.8U Active CN214089438U (en) | 2020-11-06 | 2020-11-06 | A connection structure between lower floor steel drawbridge and pier stud for double-deck bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450079A (en) * | 2022-10-18 | 2022-12-09 | 成都市市政工程设计研究院有限公司 | Environment-friendly steel structure cantilever foot bridge and main beam connecting structure and construction method |
-
2020
- 2020-11-06 CN CN202022560052.8U patent/CN214089438U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450079A (en) * | 2022-10-18 | 2022-12-09 | 成都市市政工程设计研究院有限公司 | Environment-friendly steel structure cantilever foot bridge and main beam connecting structure and construction method |
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Address after: 610218 annex ol-05-202105010, No. 2828, Shuzhou Road, Zhengxing street, Tianfu new area, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan Patentee after: Chengdu Municipal Engineering Design and Research Institute Co.,Ltd. Address before: No.21, Wufu Street, Chengdu, Sichuan 610015 Patentee before: CHENGDU MUNICIPAL ENGINEERING AND RESEARCH DESIGN INSTITUTE |
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