CN104278620B - The ball of Self-resetting can enter formula winged and wave shock insulation pier stud - Google Patents
The ball of Self-resetting can enter formula winged and wave shock insulation pier stud Download PDFInfo
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- CN104278620B CN104278620B CN201410514822.1A CN201410514822A CN104278620B CN 104278620 B CN104278620 B CN 104278620B CN 201410514822 A CN201410514822 A CN 201410514822A CN 104278620 B CN104278620 B CN 104278620B
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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
- 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
- E01D19/04—Bearings; Hinges
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
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- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The ball of Self-resetting can enter formula winged and wave shock insulation pier stud, its for a kind of can the isolation structure that wave pier stud of Self-resetting, this shock insulation pier stud includes at the bottom of girder, bridge pier, cushion cap, the spherical pier of semi-convex formula, bridge pier wing plate, rubber spacer, hollow out hemisphere face cushion cap top, marmem shear studs, oblique section block.Bridge pier and the consolidation of cushion cap are changed producing into wave hinged by it.Embed cushion cap top at the bottom of the spherical pier of bridge pier and hollow out hemisphere.Both sides, top at the bottom of the spherical pier of bridge pier are bridge pier flange plates, and flange plate is by marmem shear studs and cushion cap anchor connection.Rubber spacer is arranged at the bottom of the spherical pier of semi-convex formula and hollows out between hemispherical top, between cushion cap and bridge pier wing plate, between bridge pier wing plate side and cushion cap block.The present invention makes pier column and basis separate, and waves filtering seismic energy, not only protects bridge pier but also protect basis；This structure has good society economic benefit, is worthy of popularization.
Description
Technical field
The present invention relates to science of bridge building and engineering technical field of isolation of crossing a river, especially relate to one
Kind can Self-resetting wave shock insulation pier stud.
Background technology
China's most area is in earthquake-prone region, and particularly North China and southwest etc. is the strongest
Earthquake region, when these regional Construction structures, it is necessary to consider the anti-seismic performance of structure and adopt
Take rational version to reduce the destruction that earthquake brings.Nearly violent earthquake the most both domestic and external
All show the serious consequence that science of bridge building destroys, it is necessary to it is taked effective earthquake resistant construction,
To alleviate the destruction of bridge, keep transportation lifeline engineering disaster area weight after earthquake relief work and shake
In building unimpeded.Different according to structural seismic mechanism, " antidetonation ", " shock-damping energy-dissipating " can be divided into
" shock insulation " three kinds of modes.Bridge seismic isolation design be mainly bridge upper and lower part structure it
Between, use various vibration absorption and isolation support to replace traditional axle beam support, with extending structure natural vibration period
And the frequency range that the seismic energy that staggers is concentrated, dissipative part seismic energy simultaneously.Bridge ductility resists
Shake and be mainly designed to utilize the plastic deformation of bridge pier, but the damage of Pier
Reparation is difficult, can cause Bridge Structure Collapse time serious.Highly seismic region, centering is short
Bridge pier, for ensureing safety when plastic hinge region moment of flexure is excessive, the method by increasing section area is non-
The most uneconomical, and ductility is difficult to ensure that.For the problems referred to above, herein should by shock insulation thought
For bridge pier position, propose a kind of can the isolation structure that wave pier stud of Self-resetting.Pier stud every
The structure of shake can effectively discharge the moment of flexure at the bottom of pier, moulds thus without being formed bottom bridge pier
Property hinge, the bridge pier efficiently controlled reaction in earthquake, thus protect bridge, reach
The purpose of Bridge Earthquake Resistance Design.
Summary of the invention
In order to solve the problem that in the Bridge Earthquake Resistance Design illustrated in background technology, bridge pier exists,
The present invention propose a kind of can the isolation structure that wave pier stud of Self-resetting, bridge can be improved
Can quickly repair after shock resistance, and connection damage.Realize " energy dissipating " to exist with " shock insulation "
Use in conjunction in bridge pier antidetonation, effective control structure destruction under geological process, it is ensured that knot
The function recovered of structure.
For achieving the above object, the technical solution used in the present invention is the ball of Self-resetting can to enter formula
Winged waves shock insulation pier stud, its be a kind of can the isolation structure that wave pier stud of Self-resetting, should
Shock insulation pier stud includes at the bottom of girder 1, bridge pier 2, cushion cap 3, the spherical pier of semi-convex formula 5, bridge pier
Wing plate 6, rubber spacer 7, hollow out hemispherical top 8, marmem shear studs 10,
Oblique section block 12.It changes the mode that traditional bearing connects Dun Liang into pier consolidation, will
Bridge pier 2 and the consolidation of cushion cap 3 change producing wave hinged into.
The bottom of bridge pier 2 is prefabricated at the bottom of the spherical pier of semi-convex formula 5；The top of cushion cap 3 is prefabricated into
Hollow out hemispherical top 8；Bridge pier 2 is connected with cushion cap 3 in " ball enters formula " mode, fills out therebetween
Fill rubber spacer 7 preferably complete both sliding and rotation and protect contact surface.Bridge pier ball
Both sides, top at the bottom of shape pier are bridge pier flange plates, and flange plate passes through marmem shear studs
10 with cushion cap 3 anchor connection.Marmem shear studs 10 is remembered by pre-buried shape
Recall alloy shear studs sleeve 9 and carry out positioning installation, and two ends are by end anchorage steel plate
11 anchor.The surrounding of cushion cap 3 has the oblique section block 12 higher than bridge pier flange plate, tiltedly
Filled rubber bed course 7 between cross section block 12 and bridge pier wing plate 6 side.
Described rubber spacer 7 be arranged at the bottom of the spherical pier of semi-convex formula 5 and hollow out hemispherical top 8 it
Between, between cushion cap 3 and bridge pier wing plate 6, between bridge pier wing plate 6 side and cushion cap block 12.
The radius R of 5 hemisphere at the bottom of the spherical pier of semi-convex formula1Bridge is less than radius or the minimum in cross section of pier
Size, the depression radius R of cushion cap 32Less than the half of cushion cap thickness, and R1Less than R2.Described
The rubber spacer 7 of filling thickness D between bridge pier wing plate 6 and cushion cap 3, by this most solid
Fixed connected mode, pier stud reach " every " purpose shaken.
Rubber layer thickness D needs to meet rubber spacer 7 and cushion cap 3 contact surface when waving
The demand of relative deformation.There are the bridge pier wing plate 6 stretched out, the width of bridge pier wing plate 6 in bridge pier 2 both sides
L is more than bridge pier radius or the full-size in cross section, and bridge pier wing plate 6 height H is the cushion cap of 1/3～1/2
3 height.
Bridge pier wing plate 6 and cushion cap 3 are attached by marmem shear studs 10.Shape
Memory alloy material (SMA) has shape memory effect and the phase transformation superelastic properties of uniqueness,
Allow it to produce bigger recovery stress and recovery strain.Marmem shearing spiral shell
Bolt 10 can provide pulling capacity and shearing resistance for bridge pier 2, helps bridge pier 2 to reset.Shape memory
Alloy shear studs 10 is evenly arranged on bridge pier wing plate 6.
Cushion cap 3 surrounding is oblique section block 12, can use novel earthquake-proof link stopper form；This bevel
Face block 12 by concrete wedge, vertical reinforcement, horizontal reinforcement, polystyrene foam every
Form from block and anti-stick thin layer, there is resettability and easy prosthetic.By sacrificial structure
The design philosophy of part, the width B of oblique section block 12 meets structural behaviour need under site ground motion
Ask, as the secondary security perimeter of bridge pier antidetonation, limit displacement excessive when bridge pier waves,
Under extreme case, oblique section block 12 can destroy, thus protects bridge structure main body.
The invention has the beneficial effects as follows:
The present invention can the isolation structure that wave pier stud of Self-resetting, damping under geological process
Effect is notable, be mainly reflected in following some:
1. can be reduced to hinged, in earthquake bottom bridge pier due to the connected mode of bridge pier and cushion cap
Moment of flexure be released, shake rear abutment and the basic not damaged in basis, integrity is preferable.And shake
The design of existing conventional bridge pier is changed less by pendulum shock insulation, easily realizes, applied widely.
2. wave the ball of pier stud enter formula be connected under small angle tower can Self-resetting, bridge pier and cushion cap
Between junction embed rubber spacer and be beneficial to wave, and have marmem shear studs to help
Helping reset, cushion cap surrounding block limits bridge pier over-large displacement.Therefore, structure can realize on ground
Waving of earthquake centre, reaches the effect of shock insulation.
3. traditional hinged changing into of pier beam is consolidated by the present invention, and bridge pier and girder junction are no longer
Bearing is set, it is to avoid bearing sliding and girder relative displacement is excessive and falling of causing in earthquake
Beam；Simultaneously because bearing exists endurance issues, the bearing phase under arms needs periodic detection also
Change in time, and this structure well avoids problems.
4. the present invention is while meeting relevant design specification, makes pier column and basis separate,
Wave filtering seismic energy, not only protect bridge pier but also protect basis.
5. present invention design makes structure bridge pier stress in earthquake little, therefore can reduce bridge pier
Design section and arrangement of reinforcement；Shake rear abutment does not occurs or slight damage occurs, and repairs a little and just may be used
Use, decrease the repair amount after shake and Financial cost, it is ensured that have a good transport and communication network, for
After shake, valuable time has been won in earthquake relief work and post-disaster reconstruction.Therefore, this structure has good
Good economic results in society, are worthy of popularization.
Accompanying drawing explanation
Fig. 1 is the isolation structure waving pier stud of Self-resetting can to indulge bridge to schematic cross-section；
Fig. 2 is can the isolation structure direction across bridge schematic cross-section that wave pier stud of Self-resetting；
Fig. 3 be can Self-resetting wave pier stud top view at rubber spacer；
Fig. 4 is the normal section schematic diagram of oblique section block.
In figure: 1, girder；2, bridge pier；3, cushion cap；4, bridge pier；5, semi-convex formula ball
At the bottom of shape pier；6, bridge pier wing plate；7, rubber spacer；8, hemispherical top is hollowed out；9, shape
Shape memory alloys shear studs sleeve；10, marmem shear studs；11, termination anchor
Gu steel plate；12, oblique section block；L, pier wing plate width；H, pier wing plate thickness；R1、
The radius of a ball at the bottom of the spherical pier of semi-convex formula；R2, hollow out hemisphere face cushion cap heading radius；D, rubber
Cushion thickness；B, block maximum cross-section, oblique section width.
Detailed description of the invention
The present invention a kind of under the natural disaster effects such as earthquake can Self-resetting wave pier stud
Isolation structure, by waving the seismic energy that dissipates, reaches " energy dissipating " and " shock insulation " two
Plant purpose.This structure be mainly used in science of bridge building and cross a river engineering seismic isolation technology it can also be used to
In the frame-shear-wall structure that depth-width ratio is little.
As Figure 1-4, the present invention is can Self-resetting structure under the natural disaster effects such as earthquake
A specific embodiment, make includes girder 1, bridge pier 2, cushion cap 3, semi-convex formula
At the bottom of spherical pier 5, bridge pier wing plate 6, rubber spacer 7, hollow out hemispherical top 8, shape note
Recall alloy shear studs 10, oblique section block 12.
Can the bridge pier structure of Self-resetting, change the mode that traditional bearing connects Dun Liang into Dun Liang
Consolidation, changes by bridge pier 2 and the consolidation of cushion cap 3 as producing wave hinged into.
The bottom of bridge pier 2 is prefabricated at the bottom of the spherical pier of semi-convex formula 5；The top of cushion cap 3 is prefabricated into
Hollow out hemispherical top 8；Bridge pier 2 is connected with cushion cap 3 in " ball enters formula " mode, fills out therebetween
Fill rubber spacer 7 and preferably realize both sliding and rotation.Top two at the bottom of the spherical pier of bridge pier
Side is bridge pier flange plate, and flange plate is by marmem shear studs 10 and cushion cap 3 anchor
It is solidly connected.Marmem shear studs 10 is by pre-buried marmem shearing spiral shell
Bolt sleeve 9 carries out positioning installation, and two ends are anchored by end anchorage steel plate 11.
The surrounding of cushion cap 3 has the oblique section block 12 higher than bridge pier flange plate, oblique section block 12 He
Filled rubber interlayer between bridge pier wing plate 6 side.
Described rubber spacer 7 be arranged at the bottom of the spherical pier of semi-convex formula 5 and hollow out hemispherical top 8 it
Between, between cushion cap 3 and bridge pier wing plate 6, between bridge pier wing plate 6 side and cushion cap block 12.
The radius R of 5 hemisphere at the bottom of the spherical pier of semi-convex formula1Bridge is less than radius or the minimum in cross section of pier
Size, the depression radius R of cushion cap 32Less than the half of cushion cap thickness, and R1Less than R2.Described
The rubber spacer 7 of filling thickness D between bridge pier wing plate 6 and cushion cap 3, by this most solid
Fixed connected mode, pier stud reach " every " purpose shaken.
Rubber layer thickness D needs to meet rubber spacer 7 and cushion cap 3 contact surface when waving
The demand of relative deformation.There are the bridge pier wing plate 6 stretched out, the width of bridge pier wing plate 6 in bridge pier 2 both sides
L is slightly less than the width of cushion cap 3 and more than bridge pier radius or the full-size in cross section, bridge pier wing plate 6
Highly H is cushion cap 3 height of 1/3～1/2.
Bridge pier wing plate 6 and cushion cap 3 are attached by marmem shear studs 10.Shape
Memory alloy material (SMA) has shape memory effect and the phase transformation superelastic properties of uniqueness,
Allow it to produce bigger recovery stress and recovery strain.Marmem shearing spiral shell
Bolt 10 can provide pulling capacity and shearing resistance for bridge pier 2, helps bridge pier 2 to reset.Shape memory
Alloy shear studs 10 is evenly arranged on bridge pier wing plate 6.
Cushion cap 3 surrounding is oblique section block 12, can use novel earthquake-proof link stopper form；This bevel
Face block 12 by concrete wedge, vertical reinforcement, horizontal reinforcement, polystyrene foam every
Form from block and anti-stick thin layer, there is resettability and easy prosthetic.By sacrificial structure
The design philosophy of part, the width B of oblique section block 12 meets structural behaviour need under site ground motion
Ask, it is provided that the secondary defence line of bridge pier quake-resistant safety, limit displacement excessive when bridge pier waves,
Under extreme case, oblique section block 12 can destroy, thus protects bridge structure main body.
Under geological process, due to the effect of horizontal tilting moment, basis and the boundary of pier stud
Getting a promotion at face, lifting and return repeatedly cause waving of pontic, and at the bottom of pier, internal force is (curved
Square) it is released.Ball enters the location limit that the connection of formula can realize waving smoothly with pier stud
Position.Marmem shear studs 10 earthquake energy in swing process, and about
The bundle bridge pier edge of a wing, provides restoring force for bridge pier.It is excessive that the block 12 of cushion cap surrounding limits bridge pier
Displacement, it is ensured that bridge pier reset.Bottom pier stud and cushion cap hinged, release moment of flexure at the bottom of pier,
Reduce the size in pier stud cross section.Additionally, the shear studs 10 between cushion cap and pier stud wing plate
Carry out disposing location by being embedded in basis and the sleeve in pier stud, do not expose, be difficult to aging
Damage, its service life can be increased, be also easy to change.This structure not in use by bearing,
Solve tradition bridge in bridge life cycle management, need the problem of replacing time, economic effect
Benefit is greatly improved.The joint structure mode adaptive ability of Self-resetting is strong, is normally using lotus
(such as Foundation displacement effect, carload, automobile braking force etc.) under load effect, pier stud with hold
Do not separate between platform.Under little shake effect, bridge pier realizes knot by the deformation of rubber spacer
Waving of structure, reduces the stress of main structure body；Under big shake effect, produce between pier shaft and cushion cap
Raw bigger relative displacement and lift-off, now, marmem shear studs helps bridge pier
Resetting, meanwhile, the oblique section block of cushion cap surrounding limits and bigger waves displacement.Due to bridge
Pier is hinged with cushion cap, and release moment of flexure decreases structural earthquake stress, it is ensured that structure after shake
Bearing capacity does not declines.The most not only protect bridge pier column but also protect cushion cap foundation, also
Energy restrainer, it is possible to meet the high request of structural seismic performance.Can Self-resetting wave pier
Post isolation structure all has good work under normal working load and accidental seismic loading
Performance, is worth popularization and application in Practical Project.
Claims (6)
1. the ball of Self-resetting can enter formula winged and wave shock insulation pier stud, it is characterised in that: this pier stud
For a kind of can the isolation structure that wave pier stud of Self-resetting, this shock insulation pier stud include girder (1),
(5), bridge pier wing plate (6), rubber at the bottom of bridge pier (2), cushion cap (3), the spherical pier of semi-convex formula
Rubber cushion layer (7), hollow out hemispherical top (8), marmem shear studs (10),
Oblique section block (12)；It changes the mode that traditional bearing connects Dun Liang into pier consolidation,
Bridge pier (2) and the consolidation of cushion cap (3) change into producing wave hinged；
The bottom of bridge pier (2) is prefabricated at the bottom of the spherical pier of semi-convex formula (5)；Cushion cap (3)
Top is prefabricated into and hollows out hemispherical top (8)；Bridge pier (2) with " ball enters formula " mode with hold
Platform (3) connects, and filled rubber bed course (7) realizes both sliding and rotation and protects therebetween
Protect contact surface；Both sides, top at the bottom of the spherical pier of bridge pier are bridge pier flange plates, and flange plate passes through shape
Memorial alloy shear studs (10) and cushion cap (3) anchor connection；Marmem shearing
Bolt (10) carries out location peace by pre-buried marmem shear studs sleeve (9)
Put, and two ends are anchored by end anchorage steel plate (11)；The surrounding of cushion cap (3)
There are the oblique section block (12) higher than bridge pier flange plate, oblique section block (12) and the bridge pier wing
Filled rubber bed course (7) between plate (6) side.
The most according to claim 1 the ball of Self-resetting can enter formula winged and wave shock insulation pier stud,
It is characterized in that: described rubber spacer (7) be arranged on (5) at the bottom of the spherical pier of semi-convex formula and
Hollow out between hemispherical top (8), between cushion cap (3) and bridge pier wing plate (6), bridge pier
Between wing plate (6) side and cushion cap block (12).
The most according to claim 1 the ball of Self-resetting can enter formula winged and wave shock insulation pier stud,
It is characterized in that: the radius R of (5) hemisphere at the bottom of the spherical pier of semi-convex formula1Radius less than bridge pier
Or the minimum dimension in cross section, the depression radius R of cushion cap (3)2Less than the half of cushion cap thickness,
And R1Less than R2；The rubber of filling thickness D between described bridge pier wing plate (6) and cushion cap (3)
Bed course (7), by this not exclusively fixing connected mode, pier stud reach " every " shake
Purpose.
The most according to claim 1 the ball of Self-resetting can enter formula winged and wave shock insulation pier stud,
It is characterized in that: rubber layer thickness D needs to meet rubber spacer (7) and cushion cap (3) when waving
The demand of the relative deformation of both contact surfaces；There is the bridge pier wing plate (6) stretched out bridge pier (2) both sides,
The width L of bridge pier wing plate (6) is slightly less than the width of cushion cap (3) and is more than bridge pier radius or cuts
The full-size in face, bridge pier wing plate (6) highly H be 1/3～1/2 cushion cap (3) highly.
The most according to claim 1 the ball of Self-resetting can enter formula winged and wave shock insulation pier stud,
It is characterized in that: bridge pier wing plate (6) and cushion cap (3) are by marmem shearing spiral shell
Bolt (10) is attached；Marmem shear studs (10) can be bridge pier (2)
Pulling capacity and shearing resistance are provided, help bridge pier (2) to reset；Marmem shear studs
(10) it is evenly arranged on bridge pier wing plate (6).
The most according to claim 1 the ball of Self-resetting can enter formula winged and wave shock insulation pier stud,
It is characterized in that: cushion cap (3) surrounding is oblique section block (12), can use novel earthquake-proof
Link stopper form；This oblique section block (12) is by concrete wedge, vertical reinforcement, level
Reinforcing bar, polystyrene foam spacing block and anti-stick thin layer composition, have resettability and
Easily prosthetic；The width B of oblique section block (12) meets structural behaviour under site ground motion
Demand, it is provided that the secondary defence line of bridge pier quake-resistant safety, limits displacement excessive when bridge pier waves,
Under extreme case, oblique section block (12) can destroy, thus protects bridge structure main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410514822.1A CN104278620B (en) | 2014-09-29 | 2014-09-29 | The ball of Self-resetting can enter formula winged and wave shock insulation pier stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410514822.1A CN104278620B (en) | 2014-09-29 | 2014-09-29 | The ball of Self-resetting can enter formula winged and wave shock insulation pier stud |
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| Publication Number | Publication Date |
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| CN104278620A CN104278620A (en) | 2015-01-14 |
| CN104278620B true CN104278620B (en) | 2016-09-14 |
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| JPH0770872A (en) * | 1993-08-30 | 1995-03-14 | Koei:Kk | Thermally bondable woven and knitted fabric |
| JP3803153B2 (en) * | 1996-12-26 | 2006-08-02 | 大林道路株式会社 | Seismic structure of building |
| JP2006342508A (en) * | 2005-06-07 | 2006-12-21 | Zenitaka Corp | Vibration reduction structure and vibration reduction construction method |
| TW200736469A (en) * | 2006-03-30 | 2007-10-01 | wen-xiang Li | Universal seismic isolation device |
| CN101289868B (en) * | 2008-06-11 | 2010-06-02 | 陈茂祥 | Large earthquake resistance foundation structure of buildings |
| CN103362147B (en) * | 2013-06-20 | 2016-04-27 | 上海师范大学 | The multidirectional Self-resetting isolation structure of a kind of building |
| CN103882803B (en) * | 2014-03-19 | 2016-11-09 | 浙江建科减震科技有限公司 | A kind of replaceable landscape configuration presstressed reinforcing steel Self-resetting power consumption bridge pier |
| CN104060687B (en) * | 2014-07-03 | 2016-02-03 | 河北工程大学 | The implementation method of controllable rotary Self-resetting elastic hinge structure and Self-resetting elastic hinge |
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2014
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