CN209482155U - A kind of function separate type Self-resetting shock-absorption bridge - Google Patents
A kind of function separate type Self-resetting shock-absorption bridge Download PDFInfo
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- CN209482155U CN209482155U CN201920056963.1U CN201920056963U CN209482155U CN 209482155 U CN209482155 U CN 209482155U CN 201920056963 U CN201920056963 U CN 201920056963U CN 209482155 U CN209482155 U CN 209482155U
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Abstract
A kind of function separate type Self-resetting shock-absorption bridge, the horizontal Self-resetting Structural System With Energy Dissipative Devices of sliding support and connection girder including vertical support girder at abutment, bridge pier, girder and abutment, bridge pier.The Self-resetting Structural System With Energy Dissipative Devices are composed in series by Self-resetting energy-consumption damper and acceleration relationship type locking device, in series connection position setting located in series device and girder bottom is fixed on, by connecting elements by Self-resetting Structural System With Energy Dissipative Devices and abutment, bridge pier and main beam pivot；Self-resetting Structural System With Energy Dissipative Devices axis is arranged at an angle with girder axis；Acceleration relationship type locking device can adapt to temperature deformation when bridge normal operation, and by momentary activation when earthquake occurs, Self-resetting energy-consumption damper is started to work；Sliding support and Self-resetting Structural System With Energy Dissipative Devices, which realize, vertically to be separated with horizontally function.The invention can effectively limit pier beam relative displacement under geological process, reduce bridge pier seismic Damage, it is ensured that bridge structure post earthquake recovery is open to traffic.
Description
Technical field
The utility model relates to bridges, and in particular to Self-resetting energy-consumption damper, the locking of acceleration relationship type
The function separate type Self-resetting shock-absorption bridge that device, located in series device and sliding support are used cooperatively.
Background technique
The promotion of its anti-seismic performance of existing highway bridge structural system mainly passes through setting vibration absorption and isolation support and elastoplasticity block
Etc. glissandoes realize, it is larger using the earthquake displacement response of the bridges of these glissandoes its beam body, easily cause support
Destruction and fall the generations of the earthquakes such as beam.In addition, there are very big survivor bits in these traditional glissandoes girder after shake
It moves, bridge cannot be made to be restored to initial state, be difficult to meet the requirement such as post-earthquake emergency response operation.For this purpose, using for reference day
Originally " function separation " aseismatic design concept and in Taiwan Province, China high-speed rail bridge used, proposes a kind of function separate type Self-resetting
Damping bridge, Self-resetting shock-absorption bridge are mainly the vertical load that girder is undertaken by sliding support, are consumed energy by Self-resetting
Shock absorption system controls the horizontal displacement of girder, vertically separates with horizontally function to realize.
Summary of the invention
The purpose of the utility model is to provide a kind of function separate type Self-resetting shock-absorption bridges.
The utility model is a kind of function separate type Self-resetting shock-absorption bridge, abutment 1, bridge pier 2, girder 3 and abutment 1,
The Self-resetting Structural System With Energy Dissipative Devices 5 of the sliding support 4 of vertical support girder and connection girder at bridge pier 2；Self-resetting energy-dissipating and shock-absorbing
System 5 is made of Self-resetting energy-consumption damper 7, acceleration relationship type locking device 8, located in series device 9, located in series device
9 be a round stainless steel steel cylinder, and the midpoint outside steel cylinder is welded to connect component 6, Self-resetting is consumed energy using bolt and is damped
Device 7 is cascaded with acceleration relationship type locking device 8, and in series connection position housing located in series device 9, forms Self-resetting
Structural System With Energy Dissipative Devices 5；The Self-resetting Structural System With Energy Dissipative Devices 5 connected are passed through into connecting elements 6 and abutment 1, bridge pier 2 and girder 3
It is hinged and connected；Self-resetting Structural System With Energy Dissipative Devices 5 are longitudinally arranged in the arrangement form of beam bottom along bridge by 3 axis of parallel spines, are hung down
Straight 3 axis of girder is at a certain angle along bridge lateral arrangement or with 3 axis of girderθArrangement,θValue range be 0 ° ~
90°。
The benificial effect of the utility model is to 1) met by sliding support normal under temperature, contraction, creep effects
The small deformation requirement used.2) under the live loadings such as vehicle, wind, earthquake, acceleration relationship type locking device moment is activated, and makes
Its mechanical characteristic becomes rigidity from flexibility, to ensure that deformation between pier (platform) beam and energy consumption have Self-resetting Structural System With Energy Dissipative Devices to hold entirely
Load, to reduce the seismic Damage of bridge pier.3) for beam structure system, each bridge pier cooperative bearing, shared earthquake
Power.4) energy for passing through Self-resetting energy-consumption damper dissipation Seismic input structure, reduces the seismic Damage of bridge structure, realizes bridge
Function restorability after the shake of girder construction is required with meeting emergency operation after shake etc..
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the function separate type Self-resetting shock-absorption bridge system of the utility model, and Fig. 2 is function point
From the structural schematic diagram for arranging 2 Self-resetting Structural System With Energy Dissipative Devices between formula Self-resetting shock-absorption bridge middle girder and abutment, Fig. 3, Fig. 4
The more Self-resetting Structural System With Energy Dissipative Devices arragement construction schematic diagrames between function separate type Self-resetting shock-absorption bridge middle girder and bridge pier.
Appended drawing reference and corresponding title are as follows: 1, abutment, 2, bridge pier, 3, girder, 4, sliding support, 5, Self-resetting Structural System With Energy Dissipative Devices, 6,
Connecting elements, 7, Self-resetting energy-consumption damper, 8, acceleration relationship type locking device, 9, located in series device.
Specific embodiment
As shown in Fig. 1 ~ Fig. 4, the utility model is a kind of function separate type Self-resetting shock-absorption bridge, abutment 1, bridge pier 2, master
The Self-resetting Structural System With Energy Dissipative Devices 5 of the sliding support 4 of vertical support girder and connection girder at beam 3 and abutment 1, bridge pier 2；From
Structural System With Energy Dissipative Devices 5 are resetted to be made of Self-resetting energy-consumption damper 7, acceleration relationship type locking device 8, located in series device 9,
Located in series device 9 is a round stainless steel steel cylinder, and the midpoint outside steel cylinder is welded to connect component 6, will be certainly using bolt
It resets energy-consumption damper 7 to be cascaded with acceleration relationship type locking device 8, and in series connection position housing located in series device
9, form Self-resetting Structural System With Energy Dissipative Devices 5；By the Self-resetting Structural System With Energy Dissipative Devices 5 connected by connecting elements 6 and abutment 1,
Bridge pier 2 and girder 3 are hinged and connected；Self-resetting Structural System With Energy Dissipative Devices 5 press 3 axis of parallel spines along bridge in the arrangement form of beam bottom
It is longitudinally arranged, 3 axis of vertical girder is arranged along bridge lateral or at a certain angle with 3 axis of girderθArrangement,θValue
Range is 0 ° ~ 90 °.
The utility model relates to Self-resetting energy-consumption damper, acceleration relationship type locking device, located in series device and cunnings
The function separate type Self-resetting shock-absorption bridge that dynamic support is used cooperatively, not only adapts to beam body under temperature, contraction, creep effects
Free shrink, and can effectively limit pier beam relative displacement under geological process, reduce Bridge Structural Damage.For continuous beam
Bridge structural system, function separate type Self-resetting shock-absorption bridge make the anchor block and movable pier cooperative bearing of continuous bridge, avoid
The independent stress of anchor block.Meanwhile by Self-resetting Structural System With Energy Dissipative Devices bridge structure is restored to original state, meet bridge
Restore to be open to traffic as early as possible after structure shake.The utility model is suitable for the antidetonation of newly building bridge and seismic isolation design measure and existing bridge
Seismic hardening.
As shown in Fig. 1 ~ Fig. 4, in the case that the longitudinal earthquake risk of the bridge system is higher than lateral seismic risk, runback
The angle of position Structural System With Energy Dissipative Devices 5 and 3 axis of girderθValue is within the scope of 0 ° ~ 45 °；The lateral seismic wind of the bridge system
In the case that danger is higher than bridge longitudinal earthquake risk, the angle of Self-resetting Structural System With Energy Dissipative Devices 5 and 3 axis of girderθValue is at 45 °
Within the scope of ~ 90 °；The vertical, horizontal Earthquake risk of the bridge system is quite or the uncertain situation of vertical, horizontal Earthquake risk
Under, 5 axis 5 of Self-resetting Structural System With Energy Dissipative Devices is arranged with 3 axis of girder in 45 ° of angles；Wherein several relatively typical cases are as follows:θ=0 ° indicates only to be longitudinally arranged Self-resetting Structural System With Energy Dissipative Devices 5 in bridge structure, i.e., 3 axis of parallel spines is along bridge longitudinal direction cloth
Set Self-resetting Structural System With Energy Dissipative Devices 5；θ=90 ° indicate the only lateral arrangement Self-resetting Structural System With Energy Dissipative Devices 5 in bridge, i.e., vertical main
3 axis of beam arranges Self-resetting Structural System With Energy Dissipative Devices 5 along bridge lateral.
As shown in Fig. 1 ~ Fig. 4, the acceleration relationship type locking device 8 in Self-resetting Structural System With Energy Dissipative Devices 5 is articulated with runback
The end of position energy-consumption damper 7, and the located in series device 9 for preventing serial system Cross deformation is equipped in hinge point, series connection
Positioning device 9 is a cylindrical stainless steel steel cylinder, and in steel cylinder outside weldings connecting elements 6, using bolt by connecting elements 6 with
3 bottom of girder is connected.
As shown in Fig. 1 ~ Fig. 4, the acceleration relationship type locking device 8 in the Self-resetting Structural System With Energy Dissipative Devices 5 should be selected
Free extension state is under temperature, shrinkage and creep effect, does not generate second inner force, the meeting under earthquake motion, high speed mobile load situation
By the locking device of momentary activation.
As shown in Fig. 1 ~ Fig. 4, the selection of Self-resetting energy-consumption damper 7 in the Self-resetting Structural System With Energy Dissipative Devices 5 has
The Self-resetting frcition damper of Self-resetting and energy dissipation behavior, Self-resetting energy dissipation brace.
As shown in Fig. 1 ~ Fig. 4, the sliding support 4 uses laminated rubber bearing or polytetrafluoroethylene (PTFE) slide type rubber
Support.
As shown in Fig. 1 ~ Fig. 4, the bridge pier 2 uses gravity type armored concrete solid pier；The abutment 1 uses
Gravity water wheel.
As shown in Fig. 1 ~ Fig. 4, the structural system is simply supported girder bridge and continuous bridge system；For continuous bridge Abutment
Self-resetting energy-consumption damper 7 in the Self-resetting Structural System With Energy Dissipative Devices 5 of setting is replaced by energy consumption property damper.
The installation method of the function separate type Self-resetting shock-absorption bridge of the utility model, the steps include:
(1) Self-resetting energy-consumption damper 7, acceleration locking dress Self-resetting Structural System With Energy Dissipative Devices: are chosen according to design requirement
Set 8, located in series device 9；Self-resetting energy-consumption damper 7 and acceleration relationship type locking device 8 are connected on one using bolt
It rises, and in series connection position housing located in series device 9, forms Self-resetting Structural System With Energy Dissipative Devices 5；
(2) connecting elements 6: according to the otherness of bridge structure vertical, horizontal Earthquake risk, Self-resetting energy-dissipating and shock-absorbing body is determined
It is 5 position on girder 3 and bridge pier 2 or platform, makes connecting elements 6 according to design requirement steel, and utilize high-strength
Bolt abutment 1, bridge pier 2, girder 3 position at install connecting elements 6；
(3) whole assembly: using bolt by the connection at Self-resetting Structural System With Energy Dissipative Devices 5 and abutment 1, bridge pier 2, girder 3
Component 6 is connected, and the connecting elements 6 of 9 external welding of located in series device is connected with 3 bottom of girder using bolt.
Self-resetting energy-consumption damper 7, acceleration relationship type locking device 8, located in series device 9 and cunning as shown in Figure 1
The function separate type Self-resetting shock-absorption bridge that dynamic support 4 is used cooperatively, comprising: abutment 1, bridge pier 2, girder 3 and abutment 1, bridge
The horizontal Self-resetting Structural System With Energy Dissipative Devices 5 of the sliding support 4 of vertical support girder and connection girder at pier 2.Self-resetting energy consumption subtracts
Shake system 5 is made of Self-resetting energy-consumption damper 7, acceleration relationship type locking device 8 and located in series device 9, located in series
Device 9 is a round stainless steel steel cylinder, and the midpoint outside steel cylinder is welded to connect component 6, Self-resetting is consumed energy using bolt
Damper 7 and acceleration relationship type locking device 8 are cascaded, and in series connection position housing located in series device 9, are formed certainly
Reset shock absorption system 5；The Self-resetting shock-absorption system 5 connected is passed through into connecting elements 6 and abutment 1, bridge pier 2, the hinged phase of girder 3
Even.Self-resetting Structural System With Energy Dissipative Devices 5 are longitudinally arranged in the arrangement form of beam bottom along bridge by 3 axis of parallel spines, vertical girder 3
Axis is at a certain angle along bridge lateral arrangement or with 3 axis of girderθArrangement,θValue range be 0 ° ~ 90 °.
Using above-mentioned Self-resetting energy-consumption damper 7, acceleration relationship type locking device 8, located in series device 9 and sliding branch
The function separate type Self-resetting shock-absorption bridge that seat 4 is used cooperatively, can effectively limit pier beam relative displacement under geological process, reduce
The seismic Damage of bridge pier 2 makes bridge pier 2 be in elastic stage.In addition, Self-resetting Structural System With Energy Dissipative Devices 5 can control residual displacement,
Function restorability after realizing bridge structure shake.
The Self-resetting energy consumption being displaced for dissipate seismic energy and limitation girder 3 is set between abutment 1, bridge pier 2 and girder 3
Shock absorption system 5.Wherein Self-resetting energy-consumption damper 7 reduces the ground that substructure passes to superstructure for the seismic energy that dissipates
Brisance, limitation girder generate excessive vertical, horizontal displacement, and the vertical, horizontal displacement of girder 3 can be reduced or even eliminated after shaking,
So that bridge structure is restored to initial state, restores to be open to traffic as early as possible after being conducive to bridge structure shake.
In the hinged acceleration locking device 8 in the end of Self-resetting energy-consumption damper 7, which makees in temperature, shrinkage and creep
It is in free extension state with lower, its mechanical characteristic can be made by soft by momentary activation under earthquake motion, high speed mobile load uniform acceleration
Property become rigidity, to guarantee that deformation between girder 3 and bridge pier 2 (platform) and energy consumption are held by Self-resetting Structural System With Energy Dissipative Devices 5 entirely
Load.
Self-resetting energy-consumption damper 7 and 8 hinged place of acceleration relationship type locking device are arranged for positioning, preventing Self-resetting
The located in series device 9 of shock absorption system Cross deformation, located in series device 9 are a round stainless steel steel cylinder, midpoint outside steel cylinder
Position is welded to connect component 6.
Sliding support 4 uses laminated rubber bearing or the board-like rubber support of polytetrafluoroethylene (PTFE), is mainly used for undertaking girder
Vertical load, and do not generate vertical load.
Arrangement of the Self-resetting Structural System With Energy Dissipative Devices 5 in beam bottom: according to the difference of bridge structure vertical, horizontal Earthquake risk
Property, determine Self-resetting Structural System With Energy Dissipative Devices 5 and 3 axis angle of girderθSize；When bridge longitudinal earthquake risk is higher, from
The angle of reset Structural System With Energy Dissipative Devices 5 and 3 axis of girder is within the scope of 0 ° ~ 45 °；When bridge lateral Earthquake risk is higher, from
The angle of reset Structural System With Energy Dissipative Devices 5 and 3 axis of girder is within the scope of 45 ° ~ 90 °；When vertical, horizontal Earthquake risk it is basic quite or
When person's vertical, horizontal Earthquake risk is not known, 5 axis of Self-resetting Structural System With Energy Dissipative Devices and 3 axis of girder are in 45 ° of arrangements.
The quantity of the Self-resetting Structural System With Energy Dissipative Devices 5 can be calculated according to bridge earthquake resistance and seismic isolation design and be determined, when
When the quantity of Self-resetting Structural System With Energy Dissipative Devices 5 is 2, the oblique cloth between abutment, bridge pier and girder of Self-resetting Structural System With Energy Dissipative Devices 5
It sets, as shown in Figure 2 and Figure 3；When the quantity of Self-resetting Structural System With Energy Dissipative Devices 5 is more than 2, Self-resetting Structural System With Energy Dissipative Devices are in bridge
The transverse direction of girder construction is by broken line type arrangement, as shown in Figure 4.
The connection type of Self-resetting Structural System With Energy Dissipative Devices 5 and abutment 1, bridge pier 2, girder 3, because of its object (newly building bridge knot
Structure or existing bridge structure) different and different:
The first, for newly building bridge, it is characterized in that first connecting elements 6 pre-buried at abutment 1, bridge pier 2, girder 3, then pass through
Self-resetting Structural System With Energy Dissipative Devices 5 are connect by the way of hinged by bolt with built-in fitting connecting elements 6, guarantee it in rarely occurred earthquake
Under do not occur slide or extract etc. destroy.
The second, for existing bridge, it is characterized in that connecting elements 6 is first installed at existing abutment 1, bridge pier 2, girder 3, then
Self-resetting Structural System With Energy Dissipative Devices 5 are connected with connecting elements 6 by bolt, guarantee that it does not slide or pull out under rarely occurred earthquake
It is equal out to destroy.
Using the utility model proposes energy-consumption damper containing Self-resetting, acceleration relationship type locking device, located in series
The function separate type Self-resetting shock-absorption bridge that device and sliding support are used cooperatively, can effectively improve the two-way of bridge structure
Shock resistance, reaching can restore in rarely occurred earthquake axle casing to requirements, i.e. the utility model such as original state, satisfaction emergency operations
It can be used for the seismic hardening of newly building bridge Aseismic Design or existing bridge.
In conclusion although the utility model is described in detail referring to previous examples, for the skill of this field
For art personnel, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of skill
Art feature is replaced on an equal basis, and within the spirit and principle of the utility model, made any modification, changes equivalent replacement
Into etc., it should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of function separate type Self-resetting shock-absorption bridge, it is characterised in that: abutment (1), bridge pier (2), girder (3) and abutment
(1), at bridge pier (2) sliding support (4) of vertical support girder and connect girder Self-resetting Structural System With Energy Dissipative Devices (5)；Runback
Position Structural System With Energy Dissipative Devices (5) are by Self-resetting energy-consumption damper (7), acceleration relationship type locking device (8), located in series device
(9) it constituting, located in series device (9) is a round stainless steel steel cylinder, and the midpoint outside steel cylinder is welded to connect component (6),
Self-resetting energy-consumption damper (7) and acceleration relationship type locking device (8) are cascaded using bolt, and at series connection position
Housing located in series device (9) is formed Self-resetting Structural System With Energy Dissipative Devices (5)；The Self-resetting Structural System With Energy Dissipative Devices (5) that will be connected
It is hinged and connected by connecting elements (6) and abutment (1), bridge pier (2) and girder (3)；Self-resetting Structural System With Energy Dissipative Devices (5) are in beam bottom
Arrangement form be longitudinally arranged by parallel spines (3) axis along bridge, vertical girder (3) axis along bridge lateral arrange or with
Girder (3) axis atθAngle arrangement,θValue range be 0 ° ~ 90 °.
2. function separate type Self-resetting shock-absorption bridge according to claim 1, it is characterised in that: the Self-resetting energy consumption subtracts
Shake system (5) is in the case where bridge longitudinal earthquake risk is higher than lateral seismic risk, Self-resetting Structural System With Energy Dissipative Devices (5) and master
The angle of beam (3) axisθValue is within the scope of 0 ° ~ 45 °；The Self-resetting Structural System With Energy Dissipative Devices (5) are in bridge lateral earthquake wind
In the case that danger is higher than bridge longitudinal earthquake risk, the angle of Self-resetting Structural System With Energy Dissipative Devices (5) and girder (3) axisθValue
Within the scope of 45 ° ~ 90 °；The Self-resetting Structural System With Energy Dissipative Devices (5) bridge vertical, horizontal Earthquake risk quite or vertical, horizontal
In the uncertain situation of Earthquake risk, Self-resetting Structural System With Energy Dissipative Devices (5) axis and girder (3) axis are arranged in 45 ° of angles；Its
In 2 kinds compare typical caseθ=0 ° andθ=90°;θ=0 ° indicates only to be longitudinally arranged Self-resetting Structural System With Energy Dissipative Devices in bridge structure
(5), i.e. parallel spines (3) axis along bridge is longitudinally arranged Self-resetting Structural System With Energy Dissipative Devices (5)；θ=90 ° indicate only in bridge
Lateral arrangement Self-resetting Structural System With Energy Dissipative Devices (5), i.e., vertical girder (3) axis arrange Self-resetting energy-dissipating and shock-absorbing body along bridge lateral
It is (5).
3. function separate type Self-resetting shock-absorption bridge according to claim 1, it is characterised in that: Self-resetting energy-dissipating and shock-absorbing body
Acceleration relationship type locking device (8) in system (5) is articulated with the end of Self-resetting energy-consumption damper (7), and in hinge point
Equipped with the located in series device (9) for preventing serial system Cross deformation, located in series device (9) is a cylindrical stainless steel steel
Cylinder, and in steel cylinder outside weldings connecting elements (6), connecting elements (6) is connected with girder (3) bottom using bolt.
4. function separate type Self-resetting shock-absorption bridge according to claim 1, it is characterised in that: the Self-resetting energy consumption subtracts
Acceleration relationship type locking device (8) Ying Xuanyong in shake system (5) is in free extension shape under temperature, shrinkage and creep effect
State does not generate second inner force, can be by the locking device of momentary activation under earthquake motion, high speed mobile load situation.
5. function separate type Self-resetting shock-absorption bridge according to claim 1, it is characterised in that: the Self-resetting energy consumption
Self-resetting energy-consumption damper (7) in shock absorption system (5) select the Self-resetting frcition damper with Self-resetting and energy dissipation behavior,
Self-resetting energy dissipation brace.
6. function separate type Self-resetting shock-absorption bridge according to claim 1, it is characterised in that: the sliding support
(4) laminated rubber bearing or polytetrafluoroethylene (PTFE) teflon slider bearing are used.
7. function separate type Self-resetting shock-absorption bridge according to claim 1, it is characterised in that: the bridge pier (2) is adopted
With gravity type armored concrete solid pier；The abutment (1) uses gravity water wheel.
8. function separate type Self-resetting shock-absorption bridge according to claim 1, it is characterised in that: the Self-resetting energy consumption subtracts
Shake system (5) is arranged between the abutment (1), bridge pier (2) and girder (3) of simply supported girder bridge and continuous beam；For continuous bridge bridge
The Self-resetting energy-consumption damper (7) in Self-resetting Structural System With Energy Dissipative Devices (5) being arranged at platform is changed to energy consumption property damper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920056963.1U CN209482155U (en) | 2019-01-14 | 2019-01-14 | A kind of function separate type Self-resetting shock-absorption bridge |
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| CN201920056963.1U CN209482155U (en) | 2019-01-14 | 2019-01-14 | A kind of function separate type Self-resetting shock-absorption bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487703A (en) * | 2019-01-14 | 2019-03-19 | 兰州理工大学 | A kind of function separate type Self-resetting shock-absorption bridge and installation method |
| CN110847008A (en) * | 2019-12-12 | 2020-02-28 | 福州大学 | Structure of abutment rigid frame bridge with rigid enlarged foundation and construction method thereof |
-
2019
- 2019-01-14 CN CN201920056963.1U patent/CN209482155U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487703A (en) * | 2019-01-14 | 2019-03-19 | 兰州理工大学 | A kind of function separate type Self-resetting shock-absorption bridge and installation method |
| CN110847008A (en) * | 2019-12-12 | 2020-02-28 | 福州大学 | Structure of abutment rigid frame bridge with rigid enlarged foundation and construction method thereof |
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