CN104562920A - Disc spring and dynamic damper combined damping and energy dissipation device for transverse direction of bridge - Google Patents

Disc spring and dynamic damper combined damping and energy dissipation device for transverse direction of bridge Download PDF

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Publication number
CN104562920A
CN104562920A CN201510020473.2A CN201510020473A CN104562920A CN 104562920 A CN104562920 A CN 104562920A CN 201510020473 A CN201510020473 A CN 201510020473A CN 104562920 A CN104562920 A CN 104562920A
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CN
China
Prior art keywords
bridge
damping
girder
dissipating device
bloom
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Granted
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CN201510020473.2A
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Chinese (zh)
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CN104562920B (en
Inventor
张喜刚
刘高
冯清海
黄李骥
徐源庆
徐军
周山水
张鹏
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CCCC Highway Long Bridge Construction National Engineering Research Center Co Ltd
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CCCC Highway Long Bridge Construction National Engineering Research Center Co Ltd
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Publication of CN104562920A publication Critical patent/CN104562920A/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges

Abstract

The invention discloses a disc spring and dynamic damper combined damping and energy dissipation device for the transverse direction of a bridge. The disc spring and dynamic damper combined damping and energy dissipation device is arranged at the joint between a bridge tower and a girder; the damping and energy dissipation device at least comprises a sliding plate, a pressed push plate, an arc-shaped sliding plate, a pressed steel block and a pedestal, wherein N disc spring sets and M power dampers are arranged between the pressed steel block and the pedestal, both N and M are natural numbers, N is more than or equal to 2, and M is more than or equal to 1. Under earthquake, strong wind and the like load in the transverse direction of the bridge, the girder extrudes the pressed steel block through the sliding plate, pressed push plate and arc-shaped sliding plate in sequence, the pressed steel block extrudes the disc spring sets and power dampers to reciprocate to realize damping and energy dissipation,wherein the reciprocation travel is +/-L, and the disc spring sets and power dampers can reset automatically. The disc spring and dynamic damper combined damping and energy dissipation device for the transverse direction of the bridge is capable of providing a certain self-resetting rigidity for the transverse direction movement of the bridge girder and also capable of providing a certain power damping to realize damping and energy dissipation, and meanwhile, the longitudinal and vertical movement of the bridge girder is not restrained, and large-displacement deformation and rotation can be realized.

Description

The damping energy-dissipating device that a kind of bridge direction across bridge disk spring and dynamic damping combine
Technical field
The present invention relates to the damping energy-dissipating device that a kind of bridge direction across bridge disk spring and dynamic damping combine, belong to technical field of bridge engineering.
Background technology
Along with the fast development of Modern Traffic, the built environment of bridge engineering is more complicated.In the face of the effect of the external environment condition such as strong wind, macroseism, need to research and solve the structural system of guarantee structural safety and function and relevant key device.
At present, about bridge indulge bridge to structural system and relevant damping energy-dissipating device research many, achievement is also abundanter.But, about bridge direction across bridge structural system and relevant damping energy-dissipating device research fewer.The direction across bridge constraint of tradition bridge, usually between girder and bridge tower (or bridge pier), arranging rigid transverse wind-resistant support or rigid transverse stopping means, is rigid contact when girder contacts with horizontal limit devices under lateral dynamics effect.Under direction across bridge strong wind, severe earthquake action, girder will produce powerful impact force to bridge tower (or bridge pier), this significantly increases causing the Transverse Internal Force of bridge tower (or bridge pier) and girder, girder, bridge tower (or bridge pier) and basis need to design very powerfully could resist huge horizontal force, thus increase the scale of girder and bridge tower (bridge pier).And, due to the powerful percussion of horizontal moment, very easily cause the local damage of the destruction of horizontal limit devices and girder, bridge tower structure, totally unfavorable impact is produced on the security performance, application life etc. of bridge construction and horizontal limit devices.
For adapting to the development of bridge construction, need the effective damping energy-dissipating device of research and development badly to improve the using function of bridge under the effect such as direction across bridge macroseism, strong wind and stress performance, especially there is the elastic stiffness of auto-reset function and the damping energy-dissipating device of dynamic damping combination, and girder longitudinal direction and vertical rotation can be met and be free to slide demand.
Summary of the invention
(1) technical problem that will solve
For the deficiencies in the prior art, main purpose of the present invention be to provide a kind of there is auto-reset function bridge direction across bridge disk spring and the damping energy-dissipating device that combines of dynamic damping, to meet girder longitudinally and vertical rotation and be free to slide demand.
(2) technical scheme
For achieving the above object, the invention provides the damping energy-dissipating device that a kind of bridge direction across bridge disk spring and dynamic damping combine, be arranged at bridge tower and girder joint, this damping energy-dissipating device at least comprises sliding panel, by coping, arc sliding plate, pressurized bloom and base, wherein be provided with N number of disk spring group and M dynamic damping between pressurized bloom and base, N and M is natural number, and N >=2, M >=1; Base is fixed on the pre-embedded steel slab of bridge tower by base anchor bolt.Under the load actions such as direction across bridge earthquake, strong wind, girder passes through sliding panel successively, by coping and arc sliding plate extruding pressurized bloom, pressurized bloom extruding disk spring group and dynamic damping move reciprocatingly, and reciprocating stroke is ± L, realize damping power consumption, and can automatically reset; This damping energy-dissipating device carries out precompressed in a pre-installation, precompressed amount H=0.2-0.5L, and time in working order, this damping energy-dissipating device provides certain direction across bridge precompression to girder, ensures that the direction across bridge of girder is stablized.
In such scheme, described each disk spring group is by K the butterfly spring mutually fastened to forming, and K is natural number, and K >=2; To cover on the guide bar, the bottom of guide peg is vertically fixed on base by guide peg set bolt butterfly spring, and its top can be free to slide along the guide groove inside pressurized bloom.
In such scheme, described each dynamic damping comprises piston rod and oil cylinder, and piston rod is vertically fixed on base by piston rod set bolt, and oil cylinder is vertically mounted in inside pressurized bloom by oil cylinder set bolt.
In such scheme, described arc sliding plate is installed on described has lower convex arc-shaped curved surface by inside coping, the arc-shaped curved surface close fit of fovea superior outside this lower convex arc-shaped curved surface and pressurized bloom, therebetween can be free to slide, meet the needs that bridge main beam horizontally rotates in bridge tower joint.
In such scheme, described girder side and the described sliding panel by installing outside coping are fitted closely, and girder can be free to slide along sliding panel, and can apply lateral pressure to sliding panel.
In such scheme, side plate and lateral seal plate are also installed between described base and pressurized bloom, to carry out effective sealing to butterfly spring group, dynamic damping.
In such scheme, described pressurized bloom and side plate junction are provided with L-type rounded corners, to prevent Steel Compression block from departing from side plate, and avoid the stress at chamfering place to concentrate.
In such scheme, the outside of described side plate is provided with side direction stiffener, to meet device self lateral rigidity needs, and provides certain horizontal shear resistance.
(3) beneficial effect
As can be seen from technique scheme, the present invention has following beneficial effect:
1, the damping energy-dissipating device that combines of bridge direction across bridge disk spring provided by the invention and dynamic damping, under the load actions such as direction across bridge earthquake, strong wind, girder passes through sliding panel, successively by coping and arc sliding plate extruding pressurized bloom, pressurized bloom extruding disk spring group and dynamic damping move reciprocatingly, realize damping power consumption, thus improve the stress performance of the component such as girder, bridge tower of bridge.
2, the damping energy-dissipating device that combines of bridge direction across bridge disk spring provided by the invention and dynamic damping, Self-resetting performance is realized by the elasticity of disk spring group, for providing nonlinear elasticity coupling stiffness between girder and bridge tower, thus weaken girder to the impact force that bridge tower produces under outside load action, and damping energy-dissipating device itself has good self-resetting capability.
3, the damping energy-dissipating device that combines of bridge direction across bridge disk spring provided by the invention and dynamic damping, girder can be free to slide along damping energy-dissipating device by the sliding panel installed outside coping, ensure girder and bridge tower vertical bridge to nothing retrain freely-movable, indulge bridge to Large travel range demand to meet girder.In addition, by installing lower convex arc sliding plate inside coping, outside itself and pressurized bloom, the arc-shaped curved surface close fit of fovea superior, can be free to slide therebetween, can meet the needs that bridge main beam freely rotates in bridge tower joint level.
4, the damping energy-dissipating device that combines of bridge direction across bridge disk spring provided by the invention and dynamic damping, can according to the demand of bridge direction across bridge rigidity and damping power consumption, and the parameter of adjustment disk spring group and dynamic damping, to reach optimum efficiency, applicability is good.
5, the damping energy-dissipating device that combines of bridge direction across bridge disk spring provided by the invention and dynamic damping, Path of Force Transfer is clear and definite, and structure is simple, economic and practical, and is easy to install, safeguard and change.
Accompanying drawing explanation
Fig. 1 is the elevation of the damping energy-dissipating device combined according to bridge direction across bridge disk spring and the dynamic damping of the embodiment of the present invention.
Fig. 2 is the top view of the damping energy-dissipating device combined according to bridge direction across bridge disk spring and the dynamic damping of the embodiment of the present invention.
Fig. 3 is the lateral view of the damping energy-dissipating device combined according to bridge direction across bridge disk spring and the dynamic damping of the embodiment of the present invention.
Fig. 4 is the layout schematic diagram of the damping energy-dissipating device that combines according to bridge direction across bridge disk spring and the dynamic damping of the embodiment of the present invention and girder, bridge tower.
In figure, 1-sliding panel; 2-is by coping; 3-arc sliding plate; 4-pressurized bloom; 5-guide groove; 6-guide peg; 7-disk spring group; 8-dynamic damping; 9-base; 10-side plate; 11-lateral seal plate; 12-side direction stiffener; 13-pre-embedded steel slab; 14-guide peg set bolt; 15-piston rod set bolt; 16-oil cylinder set bolt; 17-lateral seal plate set bolt; 18-base anchor bolt; 19-bridge tower; 20-girder; The damping energy-dissipating device that 21-bridge direction across bridge provided by the invention disk spring and dynamic damping combine.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
As shown in Figure 1 to 4, the damping energy-dissipating device 21 that bridge direction across bridge disk spring provided by the invention and dynamic damping combine, be arranged at bridge tower 19 and girder 20 joint, this damping energy-dissipating device at least comprises sliding panel 1, by coping 2, arc sliding plate 3, pressurized bloom 4 and base 9, wherein be provided with N number of disk spring group 7 and M dynamic damping 8 between pressurized bloom 4 and base 9, N and M is natural number, and N >=2, M >=1; Base 9 is fixed on the pre-embedded steel slab 13 of bridge tower 19 by base anchor bolt 18.Under the load actions such as direction across bridge earthquake, strong wind, girder 20 is successively by sliding panel 1, extrude pressurized bloom 4 by coping 2 and arc sliding plate 3, pressurized bloom 4 extrudes disk spring group 7 and dynamic damping 8 moves reciprocatingly, reciprocating stroke is ± L, realize damping power consumption, and can automatically reset; This damping energy-dissipating device carries out precompressed in a pre-installation, precompressed amount H=0.2-0.5L, and time in working order, this damping energy-dissipating device provides certain direction across bridge precompression to girder, ensures that the direction across bridge of girder is stablized.
In Fig. 1, the butterfly spring that each disk spring group 7 fastens mutually by K is to composition, K is natural number, and K >=2, butterfly spring is to being enclosed within guide peg 6, the bottom of guide peg 6 is vertically fixed on base 9 by guide peg set bolt 14, and its top can be free to slide along the guide groove 5 inside pressurized bloom 4.
In Fig. 1, each dynamic damping 8 comprises piston rod and oil cylinder, and piston rod is vertically fixed on base 9 by piston rod set bolt 15, and oil cylinder is vertically mounted in inside pressurized bloom 4 by oil cylinder set bolt 16.
In Fig. 1, arc sliding plate 3 is installed on by inside coping 2, has lower convex arc-shaped curved surface, the arc-shaped curved surface close fit of fovea superior outside this lower convex arc-shaped curved surface and pressurized bloom 4, therebetween can be free to slide, meet the needs that bridge main beam 20 horizontally rotates in bridge tower 19 joint.
In Fig. 1 and Fig. 2, fit closely with by the sliding panel 1 installed outside coping 2 in girder 20 side, girder 20 can be free to slide along sliding panel 1, and can apply lateral pressure to sliding panel 1.
In Fig. 1, side plate 10 and lateral seal plate 11 are also installed between base 9 and pressurized bloom 4, to carry out effective sealing to butterfly spring group 7, dynamic damping 8.Pressurized bloom 4 and side plate 10 junction are provided with L-type rounded corners, to prevent Steel Compression block 4 from departing from side plate, and avoid the stress at chamfering place to concentrate.The outside of side plate 10 is provided with side direction stiffener 12, to meet device self lateral rigidity needs, and provides certain horizontal shear resistance.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. the damping energy-dissipating device that combines of a bridge direction across bridge disk spring and dynamic damping, be arranged at bridge tower and girder joint, it is characterized in that, this damping energy-dissipating device at least comprises sliding panel, by coping, arc sliding plate, pressurized bloom and base, wherein be provided with N number of disk spring group and M dynamic damping between pressurized bloom and base, N and M is natural number, and N >=2, M >=1; Base is fixed on the pre-embedded steel slab of bridge tower by base anchor bolt; Under direction across bridge earthquake and large wind action, girder passes through sliding panel successively, by coping and arc sliding plate extruding pressurized bloom, pressurized bloom extruding disk spring group and dynamic damping move reciprocatingly, and reciprocating stroke is ± L, realize damping power consumption, and can automatically reset; This damping energy-dissipating device carries out precompressed in a pre-installation, precompressed amount H=0.2-0.5L, and time in working order, this damping energy-dissipating device provides certain direction across bridge precompression to girder, ensures that the direction across bridge of girder is stablized.
2. the damping energy-dissipating device that combines of bridge direction across bridge disk spring according to claim 1 and dynamic damping, is characterized in that, described each disk spring group is by K the butterfly spring mutually fastened to forming, and K is natural number, and K >=2; To cover on the guide bar, the bottom of guide peg is vertically fixed on base by guide peg set bolt butterfly spring, and its top can be free to slide along the guide groove inside pressurized bloom.
3. the damping energy-dissipating device that combines of bridge direction across bridge disk spring according to claim 1 and dynamic damping, it is characterized in that, described each dynamic damping comprises piston rod and oil cylinder, piston rod is vertically fixed on base by piston rod set bolt, and oil cylinder is vertically mounted in inside pressurized bloom by oil cylinder set bolt.
4. the damping energy-dissipating device that combines of bridge direction across bridge disk spring according to claim 1 and dynamic damping, it is characterized in that, described arc sliding plate is installed on described by inside coping, there is lower convex arc-shaped curved surface, the arc-shaped curved surface close fit of fovea superior outside this lower convex arc-shaped curved surface and pressurized bloom, therebetween can be free to slide, meet the needs that bridge main beam horizontally rotates in bridge tower joint.
5. the damping energy-dissipating device that combines of bridge direction across bridge disk spring according to claim 1 and dynamic damping, it is characterized in that, described girder side and the described sliding panel by installing outside coping are fitted closely, and girder can be free to slide along sliding panel, and can apply lateral pressure to sliding panel.
6. the damping energy-dissipating device that combines of bridge direction across bridge disk spring according to claim 1 and dynamic damping, it is characterized in that, side plate and lateral seal plate are also installed, to carry out effective sealing to butterfly spring group, dynamic damping between described base and pressurized bloom.
7. the damping energy-dissipating device that combines of bridge direction across bridge disk spring according to claim 6 and dynamic damping, it is characterized in that, described pressurized bloom and side plate junction are provided with L-type rounded corners, to prevent Steel Compression block from departing from side plate, and avoid the stress at chamfering place to concentrate.
8. the damping energy-dissipating device that combines of bridge direction across bridge disk spring according to claim 6 and dynamic damping, it is characterized in that, the outside of described side plate is provided with side direction stiffener, to meet device self lateral rigidity needs, and provides certain horizontal shear resistance.
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Cited By (11)

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Publication number Priority date Publication date Assignee Title
CN105780640A (en) * 2015-12-04 2016-07-20 东南大学 Resettable shape memory alloy (SMA) multidimensional vibration isolating support
CN105887668A (en) * 2016-05-31 2016-08-24 山东省交通规划设计院 Bridge shock reduction and isolation supporting base and cable-stayed bridge and suspension bridge supporting structure
CN106087723A (en) * 2016-08-10 2016-11-09 山东省交通规划设计院 Flabellum shape steel damper and vibration absorption and isolation support
CN106192733A (en) * 2016-07-13 2016-12-07 山东省交通规划设计院 A kind of be applicable to cable-stayed bridge, the three-dimensional of suspension bridge subtracts shock insulation supporting system
CN106354922A (en) * 2016-08-26 2017-01-25 中铁大桥勘测设计院集团有限公司 Optimization method for power parameters of nonlinear viscous damper
CN108103942A (en) * 2017-12-20 2018-06-01 温州市创新市政建设工程有限公司 A kind of removable operation platform for bridge construction
CN108643061A (en) * 2018-05-17 2018-10-12 蔡东彬 A kind of bridge strengthening device for municipal science of bridge building
CN108797326A (en) * 2018-06-29 2018-11-13 张晓强 A kind of horizontal shock-absorbing device for bridge
CN111608693A (en) * 2020-06-02 2020-09-01 仲恺农业工程学院 High-strength steel pipe concrete arch
CN114182625A (en) * 2022-01-19 2022-03-15 福州大学 Automatic limiting and anti-seismic device for long-span bridge girder and working method thereof
CN114232469A (en) * 2021-12-30 2022-03-25 中交公路长大桥建设国家工程研究中心有限公司 Friction energy-consumption type wind-resistant support and method

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105780640A (en) * 2015-12-04 2016-07-20 东南大学 Resettable shape memory alloy (SMA) multidimensional vibration isolating support
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CN108103942A (en) * 2017-12-20 2018-06-01 温州市创新市政建设工程有限公司 A kind of removable operation platform for bridge construction
CN108643061A (en) * 2018-05-17 2018-10-12 蔡东彬 A kind of bridge strengthening device for municipal science of bridge building
CN108797326A (en) * 2018-06-29 2018-11-13 张晓强 A kind of horizontal shock-absorbing device for bridge
CN111608693A (en) * 2020-06-02 2020-09-01 仲恺农业工程学院 High-strength steel pipe concrete arch
CN114232469A (en) * 2021-12-30 2022-03-25 中交公路长大桥建设国家工程研究中心有限公司 Friction energy-consumption type wind-resistant support and method
CN114182625A (en) * 2022-01-19 2022-03-15 福州大学 Automatic limiting and anti-seismic device for long-span bridge girder and working method thereof

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