CN108677690A - Energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System - Google Patents
Energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System Download PDFInfo
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- CN108677690A CN108677690A CN201810525719.5A CN201810525719A CN108677690A CN 108677690 A CN108677690 A CN 108677690A CN 201810525719 A CN201810525719 A CN 201810525719A CN 108677690 A CN108677690 A CN 108677690A
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
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- Bridges Or Land Bridges (AREA)
Abstract
Energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System, belongs to science of bridge building field.Mainly it is made of girder, bearing, bent cap, the double-deck rectangle hollow concrete pier of steel tube, cushion cap, the prestressing without bondn fiber-reinforced composite material rib with runback bit function and anti-buckling dog bone metal damper.The double-deck rectangle hollow concrete pier of steel tube is cast-in-place integral with bent cap, is placed on cushion cap, and connect with cushion cap by prestressing without bondn FRP tendons and anti-buckling dog bone metal damper, to play the role of Self-resetting and dissipation seismic energy.It is clear that the present invention designed waves Bridge Pier Structure System force-mechanism, under the premise of ensureing that structural system has sufficient intensity and rigidity, the geological process that structure is born can be reduced by local lift-off of the bridge pier on cushion cap, and provide effective energy dissipation capacity and self-resetting capability, it can solve the problem that the cast-in-place bridge pier damage and failure after geological process of tradition is serious and residual deformation is big.
Description
Technical field
The invention belongs to science of bridge building fields.More particularly to by Non-cohesive Prestressing Force Technology and energy consuming components control structure
A kind of energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube of shake reaction and residual deformation waves Bridge Pier Structure System.
Background technology
China is located between circum-Pacific seismic belt and Eurasian earthquake zone, and the most area on territory is earthquake territory, especially
The west area for being China is mostly meizoseismal area, earthquake very frequent activity.Bridge is the multi-purpose project of transportation lifeline, is built
It is of high cost, once by eaerthquake damage, it will lead to huge economic loss, and is repaired after shaking extremely difficult.It occurs directly in
The number of casualties on bridge is simultaneously few, but due to transportation lifeline damage, interrupt and caused by economic loss and casualties
It is inestimable, cause rescue personnel that cannot be in time, many people aggravate earthquake disaster because of not rescued in time.Together
When, the large bridge reparation that wrecks is got up relatively difficult, seriously affects the reconstruction after disaster area production and living and calamity.
Reinforced concrete bridge pier is mainly designed to ductile reinforced member by Bridge Earthquake Resistance Design method at present, utilizes selected plastic hinge
The plastic deformation in region extends the bridge structure basic cycle come the seismic energy that dissipates, to reduce Seismic Response of Bridge Structure.
Can be met by the bridge structure of reasonable Ductility Design prevents Bridge Structure Collapse in earthquake, protects the life of people
Property safety.But the short bridge pier in, curved scissors destruction easily occurs in earthquake, in order to meet tensility shock-resistant demand, need to match
A large amount of stirrups and longitudinal reinforcement are set, it is serious to increase construction investment cost.More importantly Ductility Design method is inevitable
Ground makes bridge pier damage, and the damage of Pier domain will be very serious especially under severe earthquake action, and generates larger lateral
Residual displacement causes bridge substructure to need reconstruction completely or partially that could provide Functions of Transportation after shake.These are torn open
It removes, replace and economic loss caused by repair causes interruption of communication indirect is even more to be difficult to estimate.
Invention content
In order to overcome above-mentioned defect, the present invention to provide a kind of energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube
Bridge Pier Structure System is waved, malformation caused by earthquake is concentrated on the contact surface of bridge pier and cushion cap, avoids structure
It is serious to destroy, allow bridge pier that lift-off occurs in contact surface, to reduce the seismic force that structure is born, and effective energy dissipation capacity can be provided
And self-resetting capability, improve the anti-seismic performance of bridge structure.
The purpose of the present invention is to provide a kind of energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tubes to wave bridge pier structure
System, characteristic are：It includes girder that the energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube, which waves Bridge Pier Structure System,
(1), bearing (2), bent cap (3), the double-deck rectangle hollow concrete pier of steel tube (4), prestressing without bondn fiber-reinforced composite material
Expect (FRP) muscle (5), cushion cap (6), pile foundation (7), polyvinyl chloride (PVC) pipe (12), anti-buckling dog bone metal damper
(16)；It is characterized in that：It is followed successively by girder (1), bearing (2), bent cap (3), the double-deck rectangle hollow concrete filled steel tube from top to bottom
Bridge pier (4), cushion cap (6), pile foundation (7) connection are installed together, and at least two bearings are used between girder (1), bent cap (3)
(2) girder (1), bent cap (3) are supported, has gap between two bearings (2)；
The bilayer rectangle hollow concrete pier of steel tube (4) is in coaxial bridge pier outer layer pipe (8), bridge pier internal layer steel
The sandwich concrete of bridge pier (10) is filled between pipe (9), it is hollow to form a pier section inside bridge pier inner layer steel pipe (9)
(11)；The upper end of the double-deck rectangle hollow concrete pier of steel tube (4) is embedded into the lower face of bent cap (3)；
The billet (15) of center band rectangular recess is embedded at the top of cushion cap (6), bottom portion of groove is equipped with hole；Bridge pier outer layer
The lower face of steel pipe (8) and bridge pier inner layer steel pipe (9) is placed on billet (15), bridge pier outer layer pipe (8) and bridge pier internal layer
Steel pipe (9) axially vertical billet (15), the side axial of bridge pier inner layer steel pipe (9) inner surface and billet (15) rectangular recess
It flushes；The side junction of bridge pier inner layer steel pipe (9) inner surface and billet (15) rectangular recess is equipped with anti-buckling dog bone gold
Belong to damper (16)；
Polyvinyl chloride (PVC) pipe (12), which runs through, gap, bent cap (3), bilayer between the girder (1), two bearings (2)
Rectangle hollow concrete pier of steel tube (4) and cushion cap (6)；Polyvinyl chloride (PVC), which is managed, is equipped with prestressing without bondn in the pipe of (12)
Fibre reinforced composites (FRP) muscle (5)；Pre-stress fibre enhances upper end and girder (1) anchor of composite material (FRP) muscle (5)
Gu together, lower end anchors together with cushion cap (6).
It is independent between the bilayer rectangle hollow concrete pier of steel tube (4) and cushion cap (6), does not pour integrally,
Only connected by prestressing without bondn FRP tendons (5) and anti-buckling dog bone metal damper (16).By anti-buckling dog bone metal
The installation of damper (16) reserves space.
The prestressing without bondn FRP tendons (5) sequentially pass through cushion cap (6), band rectangle in polyvinyl chloride (PVC) pipe (12)
The billet (15) of groove, the double-deck rectangle hollow concrete pier of steel tube (4), bent cap (3) and girder (1), pass through anchorage (13)
The top of the bottom and girder (1) of cushion cap (6) is anchored at anchorage steel plate.
The anti-buckling dog bone metal damper (16) is by dog bone metal Wasted-energy steel plate (17) and anti-buckling cover board (18)
Composition is reserved with and the double-deck rectangle hollow steel tube concrete in the end of dog bone metal Wasted-energy steel plate (17) and anti-buckling cover board (18)
The bolt hole (19) of native bridge pier (4) and cushion cap (6) connection, dog bone metal Wasted-energy steel plate (17) are mounted on the steel with rectangular recess
The recess sidewall of backing plate (15) and bridge pier inner layer steel pipe (9) inner surface junction, anti-buckling cover board (18) are groove steel plate, are placed in
In the outside of dog bone metal Wasted-energy steel plate (17) middle section, with the recess sidewall and bridge pier inner layer steel pipe (9) of billet (15)
Surface is fixed together, to limit dog bone metal Wasted-energy steel plate (17) out-of-plane deformation, to prevent dog bone metal Wasted-energy steel plate (17)
Out-of-plane buckling.
The beneficial effects of the invention are as follows：
The energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube of the present invention waves Bridge Pier Structure System, under geological process
Damping and isolation effect is notable, is mainly reflected in the following：
1. since bridge pier is placed on cushion cap, and only being connected by prestressing without bondn FRP tendons, then bridge pier can be sent out on cushion cap
Raw part lift-off, is released effectively bridge pier bottom moment, reduces the seismic force that bridge structure is born, and deformation is concentrated on bridge pier
On contact surface between cushion cap, billet is arranged in raft contact face, and bridge pier, which then uses, both can significantly reinforce bridge pier bearing strength
The double-deck rectangle hollow concrete pier of steel tube that bridge pier concrete amount can be reduced again becomes to make contact surface that plasticity not occur
Shape, to reduce bridge pier damage.
2. the anti-buckling dog bone metal damper arranged between cushion cap and bridge pier plays the role of dissipation seismic energy,
The effectively development of control bridge pier lift-off on cushion cap, makes damage concentration in anti-buckling dog bone metal damper, plays protection bridge
Pier, the effect for improving system strength and stiffness, anti-buckling dog bone metal damper are mounted on the inside of bridge pier and cushion cap, can keep away
Exempt from the problem of damper is surrendered too early during normal use, while not influencing bridge appearance, and is easier to replace after shake.
3. the application of Non-cohesive Prestressing Force Technology and FRP material provides bridge structure self-resetting capability, bridge pier is effectively controlled
Residual deformation ensures transport services function after bridge structure shake, reduces repair after shake, and it is perishable to avoid deformed bar
The problem of erosion.
4. the present invention is smaller to the design change of existing conventional bridge pier, easy to implement, applied widely, bridge pier can be reduced
Design section and arrangement of reinforcement dosage；It is destroyed after shake and concentrates on anti-buckling dog bone metal damper, slightly repairing can use, it is ensured that
Transportation lifeline does not interrupt, and reduces rehabilitation cost and disaster area reconstruction time after shake.Therefore, the present invention has good society economy
Benefit is worthy of popularization.
Description of the drawings
Fig. 1 is the direction across bridge section signal that energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System
Figure.
Fig. 2 is the Section A-A schematic diagram that energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System.
Fig. 3 is the section B-B schematic diagram that energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System.
Fig. 4 is the C-C schematic cross-sections that energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System.
Fig. 5 is the anti-buckling dog bone gold that energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System
Belong to damper structure schematic diagram.
Fig. 6 is the anti-buckling dog bone gold that energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System
Belong to the D-D schematic cross-sections of damper.
Fig. 7 is the anti-buckling dog bone gold that energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System
Belong to the E-E schematic cross-sections of damper.
Fig. 8 is the anti-buckling dog bone gold that energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System
Belong to the F-F schematic cross-sections of damper.
Reference sign：
1-girder；2-bearings；3-bent caps；4-double-deck rectangle hollow the concrete pier of steel tube；5-prestressing without bondns
Fibre reinforced composites (FRP) muscle；6-cushion caps；7-pile foundations；8-bridge pier outer layer pipes；9-bridge pier inner layer steel pipes；
The sandwich concrete of 10-bridge piers；11-pier sections are hollow；12-polyvinyl chloride (PVC) are managed；13-anchorages；The steel of 14-anchorages
Backing plate；15-the billets with rectangular recess；16-anti-buckling dog bone metal dampers；17-dog bone metal Wasted-energy steel plates；
18-anti-buckling cover boards；19-bolts hole.
Specific implementation mode
The present invention is to detach bridge pier bottom with cushion cap on the basis of conventional rebar concrete pier, only by without viscous
Knot prestressed FRP rebar is connected with anti-buckling dog bone metal damper, and behavior is waved come the seismic energy that dissipates with realize bridge pier
And there is runback bit function, achieve the purpose that subtract shock insulation.The structure be mainly used for the more demanding science of bridge building of anti-seismic performance and
Engineering of crossing a river subtracts in seismic isolation technology.
As shown in Fig. 1~8, the present invention is that a kind of energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves bridge pier structure
System includes mainly bridge pier-cushion cap connecting structure, bridge pier-bent cap connecting structure, prestressing without bondn system and damper structure
It makes.Bridge pier-cushion cap connecting structure that Fig. 2 waves Bridge Pier Structure System for energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube shows
It is intended to, mainly by the double-deck rectangle hollow concrete pier of steel tube 4, cushion cap 6, prestressing without bondn FRP tendons 5 and anti-buckling dog bone
Metal damper 16 forms.The billet 15 of the pre- buried strap rectangular recess in top of cushion cap 6, the double-deck rectangle hollow steel pipe encased concrete bridge
Pier 4 is placed on the billet 15 with rectangular recess, and anti-buckling dog bone metal damper 16 is mounted on the steel pad with rectangular recess
Between the recess sidewall and bridge pier inner layer steel pipe 9 of plate 15.5 connected double-layer rectangle hollow steel tube concrete of prestressing without bondn FRP tendons
Native bridge pier 4 and cushion cap 6.Fig. 3 is the bridge pier section that energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System
Face schematic diagram, the double-deck rectangle hollow concrete pier of steel tube 4 are sandwich mixed by bridge pier outer layer pipe 8, bridge pier inner layer steel pipe 9 and bridge pier
Solidifying soil 10 forms, and bridge pier inner layer steel pipe 9 forms a pier section hollow 11.Fig. 4 is energy dissipating Self-resetting bilayer rectangle hollow steel
Pipe concrete waves bridge pier-bent cap connection structure diagram of Bridge Pier Structure System, mainly by the double-deck rectangle hollow steel tube concrete
Native bridge pier 4, bent cap 3 and prestressing without bondn FRP tendons 5 form.The double-deck rectangle hollow concrete pier of steel tube 4 and bent cap 3 pour
Integrally.5 connected double-layer rectangle hollow concrete pier of steel tube 4 of prestressing without bondn FRP tendons and bent cap 3.Connect in bridge pier-cushion cap
It is elongated muscle to connect the prestressing without bondn FRP tendons 5 applied in construction and bridge pier-bent cap connecting structure, sequentially passes through cushion cap 6, band
The billet 15 of rectangular recess, the double-deck rectangle hollow concrete pier of steel tube 4, bent cap 3 and girder 1, and anchored by anchorage 13
Top in the bottom of cushion cap 6 and girder 1.Fig. 5~8 are that energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves bridge pier knot
The anti-buckling dog bone metal damper organigram of structure system, by 18 groups of dog bone metal Wasted-energy steel plate 17 and anti-buckling cover board
At anti-buckling cover board 18 is placed in dog bone metal Wasted-energy steel plate 17, in dog bone metal Wasted-energy steel plate 17 and anti-buckling cover board 18
The reserved bolt hole 19 being connect with the double-deck rectangle hollow concrete pier of steel tube 4 and cushion cap 6 in end.
The present invention breaks through traditional bridge pier mentality of designing, and flexible design, structure stress is clear, so that Bridge Pier Structure System is had good
The energy dissipation capacity of good Self-resetting performance and stabilization, and energy quick-replaceable, quickly update after meeting control residual deformation, shake
The requirements such as reparation.It is convenient that damper according to the present invention is replaced, and prestressing without bondn FRP tendons high corrosion resistance ensure that
Recoverability energy after the durability of this pillarwork system and shake is breakthrough and development to traditional pier Column border node system.This hair
It is bright to can be good at solving the problems, such as that traditional bridge pier is not easy to restore residual deformation after earthquake load with larger and same
When ensure enough energy dissipation capacities.Energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube, which waves Bridge Pier Structure System, normally to be made
There is good working performance under load and accidental seismic loading, is worth promoting and applying in Practical Project.
Claims (4)
1. a kind of energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System, characteristic is：It is described to disappear
Can Self-resetting bilayer rectangle hollow concrete filled steel tube wave Bridge Pier Structure System include girder (1), it is bearing (2), bent cap (3), double
Layer rectangle hollow concrete pier of steel tube (4), prestressing without bondn fibre reinforced composites (FRP) muscle (5), cushion cap (6), stake
Basic (7), polyvinyl chloride (PVC) pipe (12), anti-buckling dog bone metal damper (16)；It is characterized in that：From top to bottom according to
It is secondary to connect for girder (1), bearing (2), bent cap (3), the double-deck rectangle hollow concrete pier of steel tube (4), cushion cap (6), pile foundation (7)
It connects and is installed together, supported girder (1), bent cap (3) using at least two bearings (2) between girder (1), bent cap (3), two
There is gap between a bearing (2)；
The bilayer rectangle hollow concrete pier of steel tube (4) is in coaxial bridge pier outer layer pipe (8), bridge pier inner layer steel pipe
(9) the sandwich concrete of bridge pier (10) is filled between, it is hollow (11) to form a pier section inside bridge pier inner layer steel pipe (9)；
The upper end of the double-deck rectangle hollow concrete pier of steel tube (4) is embedded into the lower face of bent cap (3)；
The billet (15) of center band rectangular recess is embedded at the top of cushion cap (6)；
The lower face of bridge pier outer layer pipe (8) and bridge pier inner layer steel pipe (9) is placed on billet (15), bridge pier outer layer pipe
(8) and bridge pier inner layer steel pipe (9) axially vertical billet (15), bridge pier inner layer steel pipe (9) inner surface and billet (15) rectangle
The side axial of groove flushes；Bridge pier inner layer steel pipe (9) inner surface and the side junction of billet (15) rectangular recess are equipped with
Anti-buckling dog bone metal damper (16)；
Polyvinyl chloride (PVC) pipe (12), which runs through, gap, bent cap (3), the double-deck rectangle between the girder (1), two bearings (2)
Concrete-filled steel tubular hollow bridge pier (4) and cushion cap (6)；Polyvinyl chloride (PVC), which is managed, is equipped with prestressing without bondn fiber in the pipe of (12)
Enhance composite material (FRP) muscle (5)；The upper end of pre-stress fibre enhancing composite material (FRP) muscle (5) is anchored at girder (1)
Together, lower end anchors together with cushion cap (6).
2. a kind of energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube described in accordance with the claim 1 waves bridge pier structure body
System, characteristic are：It is independent between the bilayer rectangle hollow concrete pier of steel tube (4) and cushion cap (6), does not pour and build up
One is connected by prestressing without bondn FRP tendons (5) and anti-buckling dog bone metal damper (16)；By anti-buckling dog bone
The installation of metal damper (16) reserves space.
3. a kind of energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube described in accordance with the claim 1 waves bridge pier structure body
System, characteristic are：The prestressing without bondn FRP tendons (5) polyvinyl chloride (PVC) pipe (12) in sequentially pass through cushion cap (6),
Billet (15) with rectangular recess, the double-deck rectangle hollow concrete pier of steel tube (4), bent cap (3) and girder (1), pass through anchor
Tool (13) and anchorage steel plate are anchored at the top of the bottom and girder (1) of cushion cap (6).
4. a kind of energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube described in accordance with the claim 1 waves bridge pier structure body
System, characteristic are：The anti-buckling dog bone metal damper (16) is by dog bone metal Wasted-energy steel plate (17) and anti-buckling lid
Plate (18) forms, and is reserved with and the double-deck rectangle hollow steel in the end of dog bone metal Wasted-energy steel plate (17) and anti-buckling cover board (18)
The bolt hole (19) of pipe concrete bridge pier (4) and cushion cap (6) connection, it is recessed that dog bone metal Wasted-energy steel plate (17) is mounted on band rectangle
The recess sidewall of the billet (15) of slot and bridge pier inner layer steel pipe (9) inner surface junction, anti-buckling cover board (18) are groove steel
Plate is placed in the outside of dog bone metal Wasted-energy steel plate (17) middle section, recess sidewall and bridge pier internal layer steel with billet (15)
Pipe (9) inner surface is fixed together, to limit dog bone metal Wasted-energy steel plate (17) out-of-plane deformation, to prevent dog bone metal from consuming energy
The out-of-plane buckling of plate (17).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810525719.5A CN108677690B (en) | 2018-05-28 | 2018-05-28 | Energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System |
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| CN108677690B CN108677690B (en) | 2019-09-27 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610669A (en) * | 2018-12-28 | 2019-04-12 | 北京工业大学 | A kind of Self-resetting seismic isolation structure system preventing Seismic Isolation of Isolation Layer tension |
| CN109881841A (en) * | 2019-04-15 | 2019-06-14 | 沈阳建筑大学 | Concrete sway cylinder system is filled out in a kind of styletable constraint rotation pipe body |
| CN110541355A (en) * | 2019-09-30 | 2019-12-06 | 华侨大学 | FRP (fiber reinforced plastic) confined concrete hollow self-resetting-mild steel extrusion energy dissipation pier structure |
| CN110952439A (en) * | 2019-12-31 | 2020-04-03 | 福州大学 | Self-resetting leading plate structure suitable for seamless bridge and method thereof |
| CN112942077A (en) * | 2021-02-03 | 2021-06-11 | 中国地震局工程力学研究所 | Sliding swing pier system and swing pier top structure |
| CN113152253A (en) * | 2021-04-19 | 2021-07-23 | 中国石油大学(华东) | Simply supported bridge anti-falling beam connecting device with dual guarantee |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610669A (en) * | 2018-12-28 | 2019-04-12 | 北京工业大学 | A kind of Self-resetting seismic isolation structure system preventing Seismic Isolation of Isolation Layer tension |
| CN109881841A (en) * | 2019-04-15 | 2019-06-14 | 沈阳建筑大学 | Concrete sway cylinder system is filled out in a kind of styletable constraint rotation pipe body |
| CN110541355A (en) * | 2019-09-30 | 2019-12-06 | 华侨大学 | FRP (fiber reinforced plastic) confined concrete hollow self-resetting-mild steel extrusion energy dissipation pier structure |
| CN110541355B (en) * | 2019-09-30 | 2023-12-29 | 华侨大学 | FRP constraint concrete hollow self-resetting-mild steel extrusion energy dissipation pier structure |
| CN110952439A (en) * | 2019-12-31 | 2020-04-03 | 福州大学 | Self-resetting leading plate structure suitable for seamless bridge and method thereof |
| CN110952439B (en) * | 2019-12-31 | 2024-05-31 | 福州大学 | Self-resetting guide plate structure suitable for seamless bridge and method thereof |
| CN112942077A (en) * | 2021-02-03 | 2021-06-11 | 中国地震局工程力学研究所 | Sliding swing pier system and swing pier top structure |
| CN113152253A (en) * | 2021-04-19 | 2021-07-23 | 中国石油大学(华东) | Simply supported bridge anti-falling beam connecting device with dual guarantee |
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| Publication number | Publication date |
|---|---|
| CN108677690B (en) | 2019-09-27 |
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