CN112681118B - Energy-consuming type swing pier - Google Patents
Energy-consuming type swing pier Download PDFInfo
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- CN112681118B CN112681118B CN202011579614.1A CN202011579614A CN112681118B CN 112681118 B CN112681118 B CN 112681118B CN 202011579614 A CN202011579614 A CN 202011579614A CN 112681118 B CN112681118 B CN 112681118B
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Abstract
The invention relates to the technical field of bridges, and particularly discloses an energy-consuming type swing pier. Including bridge floor, connecting seat, first base, pier and second base, the one end and the first base fixed connection of pier, the other end of pier is located the second base, the both sides at first base upper surface are placed to the connecting seat symmetry, the bridge floor is located the connecting seat, the inside of second base is equipped with the arc wall, be equipped with the arc piece in the arc wall, the deflection motion can be done to the arc piece in the arc wall, the one end and the arc piece middle part fixed connection of pier, the top of base is equipped with 2 at least group's wabbler mechanism, the joint between adjacent two sets of wabbler mechanisms, the pier runs through the middle part of wabbler mechanism, sliding connection between pier and the wabbler mechanism. This technical scheme is used for improving the antidetonation effect of bridge, reduces the damage that the earthquake caused the bridge.
Description
Technical Field
The invention relates to the technical field of bridges, and particularly discloses an energy-consuming type swing pier.
Background
China is located between the Pacific earthquake zone and the Eurasia earthquake zone, most regions of the country are earthquake regions, particularly western regions of China are strong earthquake regions, and earthquake activities are frequent. The bridge is the pivot engineering of traffic lifeline, and its construction cost is high, in case suffer earthquake to destroy, will lead to huge economic loss, and the post-earthquake restoration is extremely difficult. The number of casualties directly happening on the bridge is not large, but due to economic loss and inestimable casualties caused by damage and interruption of traffic life lines, rescue workers cannot be timely in place, and a lot of people are not rescued in time to aggravate earthquake disasters. Meanwhile, large bridges which are damaged are difficult to repair, and production life in disaster areas and reconstruction work after disasters are seriously influenced. The current bridge anti-seismic design is mainly based on ductile anti-seismic design of hysteretic performance of a reinforced concrete bridge pier, but repair of damage and damage of a bridge pier plastic hinge area is difficult.
Disclosure of Invention
In view of this, an object of the present invention is to provide an energy-consuming type swing bridge pier, which improves the anti-seismic effect of the bridge and reduces the damage to the bridge caused by the earthquake by consuming the energy transferred to the bridge pier by the earthquake.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an energy-consuming type sways pier, includes bridge floor, connecting seat, first base, pier and second base, the one end and the first base fixed connection of pier, the other end of pier is located the second base, the both sides at first base upper surface are placed to the connecting seat symmetry, the bridge floor is located the connecting seat, the inside of second base is equipped with the arc wall, be equipped with the arc piece in the arc wall, the arc piece can be deflection motion in the arc wall, the one end and the arc piece middle part fixed connection of pier, the top of base is equipped with at least 2 and organizes wabbler mechanism, the joint between adjacent two sets of wabbler mechanism, the pier runs through wabbler mechanism's middle part, sliding connection between pier and the wabbler mechanism.
The overall working principle of the technical scheme is as follows:
when the earthquake takes place, the pier is under the effect of arc wall and arc piece, can make the swing of corresponding radian along with the earthquake wave, when wobbling radian is great, wabbler mechanism intervenes, it is spacing to make the swing of pier, when the amplitude of oscillation of pier is less, because the joint between two adjacent wabbler mechanisms, the wabbler mechanism does not intervene the small amplitude swing of pier this moment, sliding connection between wabbler mechanism and the pier, the purpose that sets up like this still lies in, when the normal thermal expansion of pier shrinks, wabbler mechanism can not form the interference to the pier, after the pier sways, under the effect of gravity, the middle part of arc wall can be got back to the arc piece, because this pier still has the reset function after the swing.
Further inject, wabbler mechanism includes upper end plate, lower plate and side wall board, the side wall board is located between upper end plate and the lower plate, and is fixed in on the lateral wall of upper end plate and lower plate, the pier hole has still been seted up respectively on upper end plate and the lower plate, pier position pier is downthehole, wabbler mechanism still includes that circumference sets up at 3 at least articulated connecting rods of group and 3 at least compression spring of lower plate upper surface, the upper surface at the lower plate is fixed to the one end of articulated connecting rod, the other end and the pier sliding connection of articulated connecting rod, compression spring's one end fixed connection is on side wall's inner wall, compression spring's the other end and the upper portion outside fixed connection of articulated connecting rod.
The working principle of the swing mechanism is as follows: when the pier swings in a small range, the sliding block slides in the sliding groove, the swing mechanism does not interfere with the swing of the pier, if the swing radian is large, the sliding block is limited by the edge of the sliding groove, the swing mechanism is subjected to stress at the moment, the swing of the pier is limited, the buffer spring supports the swing of the pier and consumes energy, and the large swing range of the pier is avoided.
Further prescribe a limit, at least two the diameter of the pier hole on the wabbler mechanism reduces from top to bottom in proper order, and its beneficial effect lies in that because pier bottom slides and deflects, pier swing range from top to bottom reduces in proper order, so the pier hole can be followed the supreme swing of restricting the pier down.
Further inject, articulated connecting rod and pier sliding connection's mode specifically does, be equipped with the spout on the pier, the upper end of articulated connecting rod is equipped with the slider, the upper end fixed connection of slider and articulated connecting rod, the slider is located the spout, and its beneficial part lies in, and when the pier takes place expend with heat and contract with cold or the swing of little amplitude, the slider can slide at the spout, avoids the wabbler mechanism atress to cause the influence to the expend with heat and contract with cold of pier.
Further inject, adjacent two sets of the mode of joint specifically does between the wabbler mechanism, be located the top the bottom surface circumference of wabbler mechanism's lower end plate is equipped with spacing section of thick bamboo, spacing section of thick bamboo position is fixed in the edge of lower end plate, is located the below be equipped with the spacing post that corresponds with the spacing section of thick bamboo position in top on the wabbler mechanism's the upper surface, spacing post is fixed in the upper surface edge of upper end plate, spacing post is located spacing section of thick bamboo, the inner circle diameter of spacing section of thick bamboo is 1-2 times of spacing post diameter, and its beneficial effect lies in, and upper portion wabbler mechanism can make certain relative motion relative lower portion wabbler mechanism, makes the range of swaying of pier bigger, and when swaying of pier left small range, wabbler mechanism does not participate in, and when the range of swaying is great, wabbler mechanism intervenes and cushions and is spacing to the pier.
Further inject, the upper surface of arc piece is equipped with the annular baffle, be equipped with a plurality of ball that the annular distributes between the inner wall of arc baffle and arc wall, the height of annular baffle is 0.5-0.7 times of ball diameter, and its beneficial part lies in, avoids annular baffle and arc wall upper end contact, causes the great while of inclined resistance, can also avoid the ball to slide to the middle part of arc piece.
Further inject, be located and be equipped with the auxiliary beam on the upper surface of the wabbler mechanism of pier the top, the auxiliary beam cladding is in the outside of pier, and the one end fixed connection of auxiliary beam is on first base, the other end fixed connection of auxiliary beam is on the upper end plate of wabbler mechanism, and its beneficial effect lies in, increases the bearing capacity of pier in the auxiliary beam can, makes pier stability more simultaneously.
The technical effect achieved by the scheme is as follows: (1) the limiting groove and the limiting block are arranged, so that the bridge pier can deflect to a certain degree along with seismic waves, and the shearing force applied to the bridge pier is reduced. (2) The setting of wabbler mechanism can cushion and spacing the deflection of pier, avoids the pier to receive great shearing force and causes the damage to and avoid the pier amplitude of deflection great, make bridge floor and connecting seat directly break away from. (3) The bridge pier and the rocking mechanism are in sliding connection, and the rocking mechanism does not intervene and interfere when the bridge pier swings in a small amplitude or expands with heat and contracts with cold. (4) The arch bridge reinforcing structure and the construction method thereof have the advantages of low cost, short construction period, low operation difficulty of reinforcement and strong practicability.
Drawings
Fig. 1 is a perspective view of the present embodiment.
Fig. 2 is a schematic front view of the present embodiment.
Fig. 3 is a schematic sectional view of the present embodiment.
Fig. 4 is a schematic view of the internal structure of the rocking mechanism of the present embodiment.
FIG. 5 is a schematic view of the connection relationship of the swing mechanism of the present embodiment
The drawings are numbered as follows:
Detailed Description
The following is further detailed by way of specific embodiments:
the utility model provides an energy consumption formula sways pier, as shown in fig. 1, including two piers 4.1 in this embodiment, compare and lie in being equipped with the wabbler mechanism with common pier 4.1 on pier 4.1, the upper end of two piers 4.1 is equipped with first base 3, first base 3 and pier 4.1 fixed connection, connecting seat 2 has been put in the top symmetry of first base 3, bridge floor 1 is placed on connecting seat 2, the wabbler mechanism is equipped with 2 at least on pier 4.1, the wabbler mechanism is located the outside of pier 4.1, and pier 4.1 passes the center of wabbler mechanism.
As shown in fig. 2, a second base 7 is disposed below the ground, the second base 7 is formed by pouring reinforced concrete, the lower end of the pier 4.1 is located inside the second base 7, as can be seen from the figure, an arc-shaped groove 7.1 is disposed inside the second base 7, a through hole for facilitating the pier 4.1 to enter and fix is disposed at the upper end of the arc-shaped groove 7.1, an arc-shaped block 7.2 is disposed in the arc-shaped groove 7.1, preferably, the arc-shaped block 7.2 is hemispherical in shape in this embodiment, the arc-shaped block 7.2 can swing in the arc-shaped groove 7.1, the lower end of the pier 4.1 is fixedly connected with the middle of the upper surface of the arc-shaped block 7.2, and after the pouring is finished, the outer side wall of the arc-shaped block 7.2 and the inner side wall of the arc-shaped groove 7.1 need to be polished, so as to reduce friction resistance in the movement processes of the two. And the arc block 7.2 makes after the arc wall 7.1 shaping, in putting into arc wall 7.1, then fix the end cover of seting up the through-hole in the upper end of arc wall 7.1, and the end cover can be reinforced concrete structure, also can be the circular steel sheet of bolt fastening at arc wall 7.1 upper surface.
As shown in fig. 3, 4 and 5, the rocking mechanism is arranged at the outer side of the pier 4.1 from top to bottom, and mainly comprises an upper end plate 5.2, a lower end plate 5.1 and a side wall plate which is fixed at the outer sides of the upper end plate 5.2 and the lower end plate 5.1 and is positioned at the outer sides of the upper end plate 5.2 and the lower end plate 5.1, pier 4.1 holes which are convenient for the pier 4.1 to pass through from the middle are arranged on the upper end plate 5.2 and the lower end plate 5.1, on the same swing mechanism, the holes of the piers 4.1 on the upper end plate 5.2 are larger than the holes of the piers 4.1 on the lower short plate, on the pier 4.1, the pier 4.1 holes of the plurality of rocking mechanisms are reduced from top to bottom in sequence, and the arrangement is aimed at that, when an earthquake occurs, the amplitude of the rocking of the pier 4.1 is reduced from top to bottom in sequence, therefore, the lower part is provided with the smaller pier 4.1 hole, the swinging of the pier 4.1 can be limited, and the phenomenon that the swinging amplitude of the pier 4.1 is too large, so that the bridge floor 1 on the upper part is separated from the connecting seat 2 on the first base 3 is avoided.
The swing mechanism also comprises a mechanism for buffering the swing of the pier 4.1, supporting and limiting the pier at ordinary times and avoiding the offset of the pier 4.1, and mainly comprises a hinged connecting rod 5.3, the hinged connecting rod 5.3 is a hinged rod with two hinged ends, one end of the hinged connecting rod 5.3 is fixed on the upper surface of the lower end surface of the swing mechanism, the other end of the hinged connecting rod 5.3 is connected with the pier 4.1 in a sliding way, the arrangement is characterized in that the sliding connection swing mechanism does not interfere normal expansion and contraction of the pier 4.1, and in order to further buffer and consume the force applied to the pier 4.1, a buffer spring 5.4 is arranged between the side face of the upper end of the hinged connecting rod 5.3 and the side wall plate 5, one end of the buffer spring 5.4 is fixedly connected with the inner side of the side wall plate 5, and the other end of the buffer spring 5.4 is fixedly connected with the outer side face of the upper part of the hinged connecting rod 5.3.
The sliding connection mode between the hinged connecting rod 5.3 and the pier 4.1 is specifically that, a plurality of sliding grooves 4.2 are arranged on the outer side face of the pier 4.1, in this embodiment, the number of the sliding grooves 4.2 is 3, sliding blocks 5.5 are arranged at the end portions of the hinged connecting rod 5.3, the sliding blocks 5.5 are fixedly connected with the upper end portions of the hinged connecting rods 5.3, in this embodiment, the hinged connecting rods 5.3 are uniformly arranged on the lower end face of the rocking mechanism along the circumferential direction and correspond to the number of the sliding grooves 4.2, so in this embodiment, the number of the hinged connecting rods 5.3 and the number of the sliding blocks 5.5 are 3, the sliding grooves 4.2 are cylindrical, the sliding blocks 5.5 are also cylindrical, the sliding blocks 5.5 are located in the sliding grooves 4.2, when the pier 4.1 expands with heat and contracts with cold, the sliding blocks 5.5 can slide in the sliding grooves 4.2, and the influence of the stress of the rocking mechanism on the expansion with heat and the contraction with cold of the pier 4.1 is avoided.
The adjacent two rocking mechanisms on the pier 4.1 are clamped, the clamping is specifically that a limiting cylinder 6 is arranged on the lower surface of the lower end plate 5.1 of the upper rocking mechanism, a limiting column 6.1 is arranged on an upper end plate 5.2 of the lower swing mechanism, a limiting cylinder 6 and the limiting column 6.1 are uniformly socialized at the outer sides of the upper end plate 5.2 and the lower end plate 5.1 along the circumferential direction, the limiting column 6.1 is positioned in the limiting cylinder 6, preferably, the diameter of the inner side of the limiting column 6.1 is 1-2 times of the diameter of the limiting column 6.1, preferably 1 times in this embodiment, this arrangement has the advantage that the upper rocking mechanism can make a certain relative movement with respect to the lower rocking mechanism, making the rocking amplitude of the pier 4.1 greater, simultaneously, when the left small amplitude of the pier 4.1 swings, the swing mechanism does not participate, and when the swing amplitude is large, the swing mechanism intervenes to buffer and limit the pier 4.1.
In order to further limit the swing amplitude of the pier 4.1, the annular baffle 7.3 is arranged on the upper surface of the limiting block, the balls 7.4 are arranged between the annular baffle 7.3 and the inner wall of the arc-shaped groove 7.1, and the gaps formed by the annular baffle 7.3 and the inner side of the arc-shaped groove 7.1 are basically filled with the balls 7.4, so that the advantage that when the limiting capacity of the swing mechanism above the pier 4.1 is insufficient, the inclination amplitude of the arc-shaped block 7.2 is large, the balls 7.4 are in contact with the upper surface of the second base 7, the swing amplitude of the pier 4.1 is further limited, and the pier 4.1 cannot be inclined greatly is ensured. Preferably, the height of the annular baffle 7.3 is 0.5-0.7 times the diameter of the ball 7.4, which is beneficial to avoid the contact between the annular baffle 7.3 and the upper end of the arc-shaped groove 7.1, causing large inclination resistance, and simultaneously avoiding the ball 7.4 from sliding to the middle of the arc-shaped block 7.2.
In order to strengthen the supporting capacity of the pier 4.1 to the first base 3, an auxiliary beam 4 is arranged on the outer side of the pier 4.1, the auxiliary beam 4 is located on the outer side of the pier 4.1, one end of the auxiliary beam 4 is fixedly connected with the first base 3, the other end of the auxiliary beam 4 is fixedly connected with an upper end plate 5.2 of the uppermost swing mechanism, and the auxiliary beam 4 can be of a reinforced concrete structure and can also be a steel column with a hole core.
It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several variations and modifications can be made, which should also be considered as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. An energy-consuming type swinging pier comprises a bridge floor, connecting seats, a first base, piers and a second base, wherein one end of each pier is fixedly connected with the first base, the other end of each pier is positioned in the second base, the connecting seats are symmetrically arranged on two sides of the upper surface of the first base, and the bridge floor is positioned on the connecting seats, the upper end plate and the lower end plate are respectively provided with a pier hole, the pier is positioned in the pier hole, the swing mechanism further comprises at least 3 groups of hinged connecting rods and at least 3 groups of compression springs which are circumferentially arranged on the upper surface of the lower end plate, one end of each hinged connecting rod is fixed on the upper surface of the lower end plate, the other end of each hinged connecting rod is in sliding connection with the pier, one end of each compression spring is fixedly connected to the inner wall of the side wall plate, the other end of each compression spring is fixedly connected with the outer side of the upper part of each hinged connecting rod, the sliding connection mode of each hinged connecting rod and the pier is specifically that a sliding groove is arranged on the pier, the upper end of each hinged connecting rod is provided with a sliding block, the sliding blocks are fixedly connected with the upper end of each hinged connecting rod, the sliding blocks are positioned in the sliding grooves, and the clamping mode between two adjacent groups of the swing mechanisms is specifically that, be located the top the bottom surface circumference of wabbler mechanism's lower end plate is equipped with a spacing section of thick bamboo, the edge of lower end plate is fixed in to spacing section of thick bamboo position, is located the below be equipped with the spacing post that corresponds with the spacing section of thick bamboo position in top on the upper surface of wabbler mechanism, spacing post is fixed in the upper surface edge of upper end plate, spacing post is located a spacing section of thick bamboo, is located to be equipped with auxiliary beam on the upper surface of the wabbler mechanism of pier the top, auxiliary beam cladding is in the outside of pier, and auxiliary beam's one end fixed connection is on first base, auxiliary beam's other end fixed connection is on wabbler mechanism's upper end plate.
2. The energy-consuming type swinging pier of claim 1, wherein the diameters of pier holes in at least two swinging mechanisms are sequentially reduced from top to bottom.
3. The energy-consuming type swinging pier according to claim 1, wherein the diameter of the inner ring of the limiting cylinder is 1-2 times of the diameter of the limiting column.
4. The energy-consuming type swinging pier as claimed in claim 1, wherein the upper surface of the arc-shaped block is provided with an annular baffle, and a plurality of balls are annularly distributed between the annular baffle and the inner wall of the arc-shaped groove.
5. The pier of claim 4, wherein the height of the ring-shaped baffle is 0.5-0.7 times the diameter of the ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011579614.1A CN112681118B (en) | 2020-12-28 | 2020-12-28 | Energy-consuming type swing pier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011579614.1A CN112681118B (en) | 2020-12-28 | 2020-12-28 | Energy-consuming type swing pier |
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| CN112681118A CN112681118A (en) | 2021-04-20 |
| CN112681118B true CN112681118B (en) | 2022-07-26 |
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| CN202011579614.1A Active CN112681118B (en) | 2020-12-28 | 2020-12-28 | Energy-consuming type swing pier |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114319081B (en) * | 2022-01-17 | 2024-01-02 | 宁波市高等级公路建设管理中心 | Prefabricated UHPC bent cap structure of quick installation |
| CN114319080B (en) * | 2022-01-17 | 2024-06-04 | 宁波市高等级公路建设管理中心 | High strength bent cap structure based on UHPC shell |
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| CN106869011A (en) * | 2017-02-28 | 2017-06-20 | 长安大学 | A kind of anti-shearing Self-resetting bridge pier joint |
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| CN112030730A (en) * | 2020-09-08 | 2020-12-04 | 河北振创电子科技有限公司 | Multi-section energy-consumption horizontal swinging pier |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207700043U (en) * | 2017-12-29 | 2018-08-07 | 长安大学 | One kind waving bridge pier |
| CN108729344B (en) * | 2018-05-28 | 2019-09-03 | 北京工业大学 | A kind of two-columned pier construction waving shock insulation use in conjunction |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001336571A (en) * | 2000-05-25 | 2001-12-07 | Oiles Ind Co Ltd | Base isolation structure |
| CN105672517A (en) * | 2016-03-10 | 2016-06-15 | 苏州科技学院 | Swing self-reset and self-standing type high-rise structure |
| CN105887665A (en) * | 2016-04-12 | 2016-08-24 | 东南大学 | Self-restoring rolling swinging shake-isolation bridge pier |
| CN106284060A (en) * | 2016-10-11 | 2017-01-04 | 重庆交通大学 | Bridge pier assembly for Bridge Seismic |
| CN106869011A (en) * | 2017-02-28 | 2017-06-20 | 长安大学 | A kind of anti-shearing Self-resetting bridge pier joint |
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| CN108951908A (en) * | 2018-07-25 | 2018-12-07 | 西安建筑科技大学 | It is a kind of with wave energy consumption column frame-shear-wall structure |
| CN112030730A (en) * | 2020-09-08 | 2020-12-04 | 河北振创电子科技有限公司 | Multi-section energy-consumption horizontal swinging pier |
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