CN113089462A - Prefabricated pin-connected panel sways pier - Google Patents
Prefabricated pin-connected panel sways pier Download PDFInfo
- Publication number
- CN113089462A CN113089462A CN202110365444.5A CN202110365444A CN113089462A CN 113089462 A CN113089462 A CN 113089462A CN 202110365444 A CN202110365444 A CN 202110365444A CN 113089462 A CN113089462 A CN 113089462A
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- pier
- semicircle
- pier body
- annular steel
- annular
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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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a prefabricated assembled swinging pier, which belongs to the technical field of bridge engineering and comprises a pier body and a bearing platform, wherein a sinking groove used for installing the pier body is formed in the center of the bearing platform, a plurality of first dampers and second dampers are arranged between the sinking groove and the pier body, the first dampers are horizontally arranged, two ends of each first damper are respectively connected with the pier body and the side wall of the sinking groove, a vertical blind hole is formed in the bottom of the sinking groove, vertical arc-shaped grooves are formed in the inner walls of the first semicircular body and the second semicircular body, and the upper end and the lower end of each arc-shaped groove extend outwards. The device can locally protect the connecting part between the pier and the bearing platform, can effectively prolong the service life of the device, and can still meet the requirement of good shock absorption when an earthquake occurs.
Description
Technical Field
The invention belongs to the technical field of bridge engineering, and particularly relates to a prefabricated assembled type swing pier.
Background
The front bridge anti-seismic method mainly consumes seismic energy through plastic deformation selected by the structure, and prolongs the structural period, thereby reducing seismic reaction and achieving the effect of resisting the seismic action. At present, bridge piers are usually designed into ductile members, so that the bridge piers are prevented from collapsing under the action of earthquakes, and the life and property safety of people is protected. Sway the pier in the use, the local pressure-bearing between pier and the cushion cap probably leads to peeling off of protective layer concrete layer and the crushing of foot point concrete, consequently has reduced the life-span of pier, consequently, urgently need provide a prefabricated pin-connected panel and sway the pier, can carry out a local protection to the junction between pier and the cushion cap, effectively improve the life-span of device, when the earthquake takes place, still can satisfy absorbing demand.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a prefabricated assembly type swinging pier, which can locally protect a connection portion between the pier and a bearing platform, effectively prolong the service life of the device, and still meet the requirement of good shock absorption when an earthquake occurs.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention discloses a prefabricated assembled swinging pier which comprises a pier body and a bearing platform, wherein a sinking groove used for mounting the pier body is formed in the center of the bearing platform, a plurality of first dampers and second dampers are arranged between the sinking groove and the pier body, the first dampers are horizontally arranged, two ends of each first damper are respectively connected with the pier body and the side wall of the sinking groove, a vertical blind hole is formed in the bottom of the sinking groove, the second dampers are arranged in the vertical blind holes, and two ends of each second damper are respectively connected with the vertical blind hole and the bottom of the pier body; the center through-hole has been seted up at the center of pier body, an annular steel bushing is installed to the bottom of pier body, annular steel bushing includes first semicircle body and second semicircle body, first semicircle body and second semicircle body are connected through locking device for the central symmetry of annular steel bushing and both, first semicircle body includes semicircle bottom plate, semicircle inboard circle and semicircle outboard circle, forms between the semicircle inboard circle of first semicircle body and second semicircle body and the semicircle outboard circle and is used for the installation the annular mounting groove of pier body.
Further, be provided with the one deck rubber circle between pier body and the annular steel bushing, the inboard of annular mounting groove is seted up and is used for the installation the mounting groove of rubber circle.
Further, fillets are formed in the inner side and the outer side edge of the lower end of the pier body, the height of each fillet is not higher than that of the annular mounting groove, and fiber reinforced concrete is filled in gaps between the pier body and the rubber rings.
Furthermore, the sink groove is filled with gravels, and the gravels are positioned in a gap between the pier body and the bearing platform.
Furthermore, a baffle is arranged at the upper end of the vertical blind hole, a through hole for the through hole of the second damper is formed in the baffle, and the baffle is used for sealing the vertical blind hole.
Furthermore, energy-consuming steel bars are arranged between the pier body and the bearing platform and are L-shaped, one ends of the energy-consuming steel bars are fixed in the pier body, and the other ends of the energy-consuming steel bars are fixed at the bottom of the bearing platform.
Furthermore, the energy dissipation reinforcing steel bars are located in the central through hole of the pier body, a plurality of groups of energy dissipation reinforcing steel bars are arranged along the circumferential direction of the pier body, and each group of energy dissipation reinforcing steel bars are sequentially arranged along the height direction of the pier body.
Furthermore, a plurality of abdicating holes used for abdicating the energy-consuming steel bars are formed in the annular steel sleeve, external threads are formed in the lower ends of the energy-consuming steel bars, and the energy-consuming steel bars penetrate through the abdicating holes and are fixedly connected with the annular steel sleeve through bolts.
Further, the pier body is assembled from last to forming down in proper order by a plurality of pier segments, the fixed first annular steel sheet that is provided with in bottom of pier segment, the fixed second annular steel sheet that is provided with in top of pier segment, first annular steel sheet and second annular steel sheet equipartition are established on pier segment's terminal surface and both radially outwards extend along the pier body respectively, and the length of extension equals pier segment's thickness, be provided with the guide rail on the first annular steel sheet, be provided with on the second annular steel sheet with guide rail complex spout, first annular steel sheet is through first anchor nail and pier segment fixed connection, the second annular steel sheet passes through second anchor nail and pier segment fixed connection.
Furthermore, vertical arc-shaped grooves are formed in the inner walls of the first semicircular body and the second semicircular body, and the upper end and the lower end of each arc-shaped groove extend outwards.
The invention has the beneficial effects that:
according to the prefabricated assembled swinging pier, the first dampers and the second dampers are arranged between the sinking grooves and the pier body, so that when an earthquake happens, the pier body can be subjected to shock absorption and energy consumption in the transverse direction and the longitudinal direction respectively, the pier body is prevented from being damaged, and the safety performance of a bridge is improved. The second damper is arranged in the vertical blind hole and can be hidden, so that the second damper can work well, cannot be influenced by a bottom soil base layer, and can also ensure the supporting performance of the bearing platform.
In the device, an annular steel sleeve is installed at the bottom of the pier body, and an annular installation groove for installing the pier body is formed between the semicircular inner side ring and the semicircular outer side ring of the first semicircular body and the second semicircular body. Can be used for protecting the bottom of pier body, prevent peeling off of the protective layer concrete layer that pier body local atress too big leads to and the crushing technical problem of foot point concrete, can carry out a local protection to the connection position between pier and the cushion cap, effectively improve the life-span of device, when the earthquake takes place, still can satisfy good absorbing demand.
Additional advantages, objects, and features of the invention will be set forth in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a top view of FIG. 1;
fig. 4 is a schematic structural diagram of an annular steel sleeve.
The drawings are numbered as follows: pier body 1, cushion cap 2, heavy groove 3, first attenuator 4, second attenuator 5, vertical blind hole 6, central through hole 7, annular steel bushing 8, first semicircle body 81, semicircle bottom plate 811, semicircle inboard circle 812, semicircle outside circle 813, second semicircle body 82, rubber ring 9, fibre reinforced concrete 10, baffle 11, power consumption reinforcing bar 12, hole of stepping down 13, bolt 14, first annular steel sheet 15, second annular steel sheet 16, slide rail 17, spout 18, first anchor 19, second anchor 20, arc wall 21.
Detailed Description
As shown in fig. 1 to 4, the prefabricated assembled swinging pier comprises a pier body 1 and a bearing platform 2, wherein a sinking groove 3 for installing the pier body 1 is formed in the center of the bearing platform 2, a plurality of first dampers 4 and second dampers 5 are arranged between the sinking groove 3 and the pier body 1, the first dampers 4 are horizontally arranged, two ends of each first damper 4 are respectively connected with the side walls of the pier body 1 and the sinking groove 3, a vertical blind hole 6 is formed in the bottom of each sinking groove 3, each second damper 5 is arranged in the corresponding vertical blind hole 6, and two ends of each second damper 5 are respectively connected with the corresponding vertical blind hole 6 and the bottom of the pier body 1; center through-hole 7 has been seted up at the center of pier body 1, an annular steel bushing 8 is installed to the bottom of pier body 1, annular steel bushing 8 includes first semicircle body 81 and second semicircle body 82, first semicircle body 81 and second semicircle body 82 are connected through locking device for the central symmetry of annular steel bushing 8 and both, first semicircle body 81 includes semicircle bottom plate 811, semicircle inboard circle 812 and semicircle outboard circle 813, forms between the semicircle inboard circle 812 and the semicircle outboard circle 813 of first semicircle body 81 and second semicircle body 82 and is used for the installation the annular mounting groove of pier body 1.
According to the prefabricated assembled swinging pier, the first dampers 4 and the second dampers 5 are arranged between the sinking grooves 3 and the pier body 1, so that when an earthquake happens, the pier body 1 can be subjected to damping and energy consumption from the transverse direction and the longitudinal direction respectively, the pier body 1 is prevented from being damaged, and the safety performance of a bridge is improved. Second attenuator 5 sets up in the vertical blind hole 6, can be used for hiding of second attenuator 5, thereby second attenuator 5 can better work, can not receive the influence of bottom earth basic unit, can also guarantee the support performance of cushion cap 2 simultaneously, thereby carry out the shock attenuation to pier body 1 through setting up first attenuator 4 and second attenuator 5, the anti lateral stiffness of pier has been reduced, thereby the extension bridge structures is from shaking the cycle and is played the vibration isolation effect, pier body 1 has been avoided receiving the damage and destruction, through connecting the attenuator at the deformation position, the ability of restoring to the throne that has improved pier body 1 has been from restoring to the throne and the consumption ability.
In the device, an annular steel sleeve 8 is installed at the bottom of the pier body 1, and an annular installation groove for installing the pier body 1 is formed between the semicircular inner side ring 812 and the semicircular outer side ring 813 of the first semicircular body 81 and the second semicircular body 82. Can be used for protecting the bottom of pier body 1, prevent that the crushing technical problem of peeling off and the foot point concrete of the protective layer concrete layer that 1 local atress of pier body is too big to lead to, can carry out a local protection to the connection position between pier and cushion cap 2, effectively improve the life-span of device, when the earthquake takes place, still can satisfy good absorbing demand.
In the embodiment, a layer of rubber ring 9 is arranged between the pier body 1 and the annular steel sleeve 8, a mounting groove for mounting the rubber ring 9 is formed in the inner side of the annular mounting groove, a certain protection effect can be achieved by arranging the rubber ring 9, the pier body 1 is prevented from being lifted away from and closed with the bearing platform 2, local damage caused by direct contact with the annular steel sleeve 8 is avoided, the damage degree is reduced, and the service life of the device is prolonged.
In this embodiment, the fillet has all been seted up to pier body 1's lower extreme inboard and outside edge, the height of fillet is not higher than the height of annular mounting groove, has consequently ground out pier body 1's outer arris, prevents that pier body 1's outer arris from receiving the destruction of external force, the clearance intussuseption between pier body 1 and the rubber circle 9 is filled with fibre reinforced concrete 10, carries out a protection to pier body 1's the outside through fibre reinforced concrete 10, prevents that pier body 1 from receiving the destruction.
In this embodiment, it is filled with the rubble to sink 3 intussuseptions, the rubble is located in the clearance between pier body 1 and the cushion cap 2, through filling the rubble, be used for carrying out a basis protection to the device in sinking groove 3, in order to guarantee the normal work of first attenuator 4, the rubble is comparatively loose, need not tamp, simple packing can, through setting up the rubble, also can carry out a basis protection to pier body 1's the outside, prevent that hard contact from leading to pier body 1's destruction, the rubble setting also has certain side direction supporting role in sinking groove 3 simultaneously, pier body 1's stability has been guaranteed.
In this embodiment, a baffle 11 is arranged at the upper end of the vertical blind hole 6, a through hole for the through hole of the second damper 5 is formed in the baffle 11, and the baffle 11 is used for sealing the vertical blind hole 6, so that sewage or impurities are prevented from entering the vertical blind hole 6, and the second damper 5 can normally work.
In this embodiment, pier body 1 with be provided with energy consumption reinforcing bar 12 between the cushion cap 2, energy consumption reinforcing bar 12 is the L type, the one end of energy consumption reinforcing bar 12 is fixed in pier body 1, the other end of energy consumption reinforcing bar 12 is fixed the bottom of cushion cap 2, and the shape of energy consumption reinforcing bar 12 has certain elastic recovery ability, and when taking place relative displacement between pier body 1 and cushion cap 2, energy consumption reinforcing bar 12 can play certain power consumption effect, thereby prolongs the self-oscillation cycle of bridge structure and plays the vibration isolation effect.
In this embodiment, the energy dissipation steel bars 12 are located in the central through hole 7 of the pier body 1, a plurality of groups of energy dissipation steel bars 12 are arranged along the circumferential direction of the pier body 1, each group of energy dissipation steel bars 12 is sequentially arranged along the height direction of the pier body 1, each group of energy dissipation steel bars 12 includes a plurality of energy dissipation steel bars 12, and the energy dissipation effect can be improved.
In this embodiment, a plurality of abdicating holes 13 used for abdicating the energy dissipation steel bars 12 are formed in the annular steel sleeve 8, external threads are formed in the lower ends of the energy dissipation steel bars 12, and the energy dissipation steel bars 12 penetrate through the abdicating holes 13 and then are fixedly connected with the annular steel sleeve 8 through bolts 14, so that the energy dissipation steel bars 12 are fixed, and the energy dissipation steel bars 12 are guaranteed to have a good energy dissipation effect after a small earthquake.
In this embodiment, the pier body 1 is formed by sequentially assembling a plurality of pier sections from top to bottom, a first annular steel plate 15 is fixedly arranged at the bottom of each pier section, a second annular steel plate 16 is fixedly arranged at the top of each pier section, the first annular steel plate 15 and the second annular steel plate 16 are uniformly arranged on the end face of each pier section and extend outwards in the radial direction of the pier body 1 respectively, the extending length is equal to the thickness of each pier section, a guide rail is arranged on the first annular steel plate 15, a sliding groove 18 matched with the guide rail is arranged on the second annular steel plate 16, the first annular steel plate 15 is fixedly connected with each pier section through a first anchor bolt 19, the second annular steel plate 16 is fixedly connected with each pier section through a second anchor bolt 20, and the first annular steel plate 15 can slide along the second annular steel plate 16 to play a role in guiding and protecting, when an earthquake occurs, even if relative displacement occurs between pier segments, under the protection effect of the first annular steel plate 15 and the second annular steel plate 16, the pier segments can be protected from being damaged by the end faces of the pier segments, the service life of the whole device is prolonged, and therefore multiple aftershocks can be well dealt with.
In this embodiment, vertical arc wall 21 has all been seted up on the inner wall of first semicircle body and the second semicircle body, the upper and lower both ends of arc wall 21 outwards extend. Taking the first semicircular body as an example, the upper end of the arc-shaped groove 21 extends to the upper surface of the first semicircular body, and the lower end of the arc-shaped groove 21 extends to the bottom plate of the first semicircular body. Through setting up arc wall 21, reserve certain evacuation space for fibre reinforced concrete 10, increase fibre reinforced concrete 10 and pier surface's area of contact prevents that it from hugging closely on pier surface, can play better protection effect.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a pier is swayd to prefabricated pin-connected panel, includes pier body and cushion cap, its characterized in that: a sinking groove used for installing the pier body is formed in the center of the bearing platform, a plurality of first dampers and second dampers are arranged between the sinking groove and the pier body, the first dampers are horizontally arranged, two ends of each first damper are respectively connected with the pier body and the side wall of the sinking groove, a vertical blind hole is formed in the bottom of the sinking groove, the second dampers are arranged in the vertical blind holes, and two ends of each second damper are respectively connected with the vertical blind hole and the bottom of the pier body; the center through-hole has been seted up at the center of pier body, an annular steel bushing is installed to the bottom of pier body, annular steel bushing includes first semicircle body and second semicircle body, first semicircle body and second semicircle body are connected through locking device for the central symmetry of annular steel bushing and both, first semicircle body includes semicircle bottom plate, semicircle inboard circle and semicircle outboard circle, forms between the semicircle inboard circle of first semicircle body and second semicircle body and the semicircle outboard circle and is used for the installation the annular mounting groove of pier body.
2. The prefabricated assembled type rocking pier of claim 1, wherein: a layer of rubber ring is arranged between the pier body and the annular steel sleeve, and a mounting groove for mounting the rubber ring is formed in the inner side of the annular mounting groove.
3. The prefabricated assembled type rocking pier of claim 2, wherein: the fillet has all been seted up to the inboard and outside edge of lower extreme of pier body, the height that highly is not higher than the annular mounting groove of fillet, the clearance intussuseption between pier body and the rubber circle is filled with fibre reinforced concrete.
4. The prefabricated assembled type rocking pier of claim 1, wherein: the sinking groove is filled with gravels, and the gravels are positioned in a gap between the pier body and the bearing platform.
5. The prefabricated assembled type rocking pier of claim 1, wherein: the upper end of the vertical blind hole is provided with a baffle, the baffle is provided with a through hole for the through hole of the second damper, and the baffle is used for sealing the vertical blind hole.
6. The precast assembled type rocking pier according to any one of claims 1 to 5, wherein: the energy-consuming steel bar is arranged between the pier body and the bearing platform, the energy-consuming steel bar is L-shaped, one end of the energy-consuming steel bar is fixed in the pier body, and the other end of the energy-consuming steel bar is fixed at the bottom of the bearing platform.
7. The prefabricated assembled type rocking pier of claim 6, wherein: the energy dissipation reinforcing steel bars are located in the central through hole of the pier body, a plurality of groups of energy dissipation reinforcing steel bars are arranged along the circumferential direction of the pier body, and each group of energy dissipation reinforcing steel bars are sequentially arranged along the height direction of the pier body.
8. The prefabricated assembled type rocking pier of claim 7, wherein: the annular steel sleeve is provided with a plurality of abdicating holes used for abdicating the energy dissipation steel bars, the lower ends of the energy dissipation steel bars are provided with external threads, and the energy dissipation steel bars penetrate through the abdicating holes and are fixedly connected with the annular steel sleeve through bolts.
9. The prefabricated assembled type rocking pier of claim 1, wherein: the pier body is assembled from last to forming down in proper order by a plurality of pier segments, the fixed first annular steel sheet that is provided with in bottom of pier segment, the fixed second annular steel sheet that is provided with in top of pier segment, first annular steel sheet and second annular steel sheet equipartition are established on pier segment's terminal surface and both radially outwards extend along the pier body respectively, and the length of extension equals pier segment's thickness, be provided with the guide rail on the first annular steel sheet, be provided with on the second annular steel sheet with guide rail complex spout, first annular steel sheet is through first anchor nail and pier segment fixed connection, second annular steel sheet passes through second anchor nail and pier segment fixed connection.
10. The prefabricated assembled type rocking pier of claim 1, wherein: vertical arc-shaped grooves are formed in the inner walls of the first semicircular body and the second semicircular body, and the upper end and the lower end of each arc-shaped groove extend outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110365444.5A CN113089462A (en) | 2021-04-06 | 2021-04-06 | Prefabricated pin-connected panel sways pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110365444.5A CN113089462A (en) | 2021-04-06 | 2021-04-06 | Prefabricated pin-connected panel sways pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113089462A true CN113089462A (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110365444.5A Withdrawn CN113089462A (en) | 2021-04-06 | 2021-04-06 | Prefabricated pin-connected panel sways pier |
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| Country | Link |
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| CN (1) | CN113089462A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775413A (en) * | 2022-05-11 | 2022-07-22 | 北京建筑大学 | Existing pier anti-seismic performance improving structure and method based on inertial container shock insulation and swing |
-
2021
- 2021-04-06 CN CN202110365444.5A patent/CN113089462A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775413A (en) * | 2022-05-11 | 2022-07-22 | 北京建筑大学 | Existing pier anti-seismic performance improving structure and method based on inertial container shock insulation and swing |
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Application publication date: 20210709 |