CN110055879B - Beam falling prevention device with unidirectional energy consumption - Google Patents

Beam falling prevention device with unidirectional energy consumption Download PDF

Info

Publication number
CN110055879B
CN110055879B CN201910470561.0A CN201910470561A CN110055879B CN 110055879 B CN110055879 B CN 110055879B CN 201910470561 A CN201910470561 A CN 201910470561A CN 110055879 B CN110055879 B CN 110055879B
Authority
CN
China
Prior art keywords
plate
corrugated
bottom plate
energy consumption
prevention device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910470561.0A
Other languages
Chinese (zh)
Other versions
CN110055879A (en
Inventor
陈克坚
董俊
曾永平
杨国静
刘力维
庞林
郑晓龙
陶奇
苏延文
徐昕宇
周川江
颜永逸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Eryuan Engineering Group Co Ltd CREEC
Original Assignee
China Railway Eryuan Engineering Group Co Ltd CREEC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway Eryuan Engineering Group Co Ltd CREEC filed Critical China Railway Eryuan Engineering Group Co Ltd CREEC
Priority to CN201910470561.0A priority Critical patent/CN110055879B/en
Publication of CN110055879A publication Critical patent/CN110055879A/en
Application granted granted Critical
Publication of CN110055879B publication Critical patent/CN110055879B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a unidirectional energy consumption beam falling prevention device, which comprises a bottom plate, wherein at least one corrugated plate is arranged on the bottom plate, the section of each corrugated plate is in a wave shape, the extending direction of each corrugated plate is consistent, the two sides of the wave crest and the wave trough of each corrugated plate are respectively provided with baffle plates, all baffle plates are connected to the bottom plate, the two ends of each corrugated plate are connected to the bottom plate, the bottom plate is used for connecting bridge piers, a limiting groove is arranged on the plate body of each corrugated plate, a sliding block is arranged in the limiting groove, the limiting direction of the limiting groove is consistent with the extending direction of the corrugated plate, and in an initial state, gaps are reserved on the sliding block and the two sides of the limiting groove, and the sliding block is used for connecting a beam body. The device effectively combines the energy consumption components with the beam falling prevention device, so that the beam falling prevention device has remarkable damping and energy consumption capacity, meets the bidirectional movement of the beam body in the normal operation stage, reduces the participation of the energy consumption components, and can temporarily and effectively consume energy and avoid beam falling when an earthquake occurs.

Description

Beam falling prevention device with unidirectional energy consumption
Technical Field
The invention relates to the technical field of railway bridge girder falling prevention energy consumption, in particular to a girder falling prevention device with unidirectional energy consumption.
Background
The beam falling prevention device is a key structure of bridge earthquake resistance and is mainly used for preventing the beam falling caused by overlarge relative displacement between an upper structure and a lower structure, so that the beam falling prevention device is commonly adopted in bridge engineering in a earthquake area.
In the prior art, concrete stop blocks, high-strength steel pull rods, high-strength steel cables and the like are commonly adopted as the bridge falling prevention devices of the highway bridges in China, and various stop block forms are commonly adopted as the bridge falling prevention devices of the railway bridges based on I-steel processing, but the bridge falling prevention devices in the above forms have certain limitations and are embodied in the following aspects:
the bridge lacks of buffer capacity, under the action of earthquake, the beam body is almost in rigid collision with the stop block or the anti-falling device on the beam and the support cushion stone, so that the bridge structure is easy to damage, and the maintenance difficulty is high; the rigid collision has large impact force, on one hand, the anti-falling device needs larger section and consumes more materials, and on the other hand, the impact effect on the beam and the bridge pier is also large;
the earthquake energy consumption is poor, because concrete dog, steel pull rod, cable all have prevented the earthquake injury that falls the roof beam, can't consume energy through self deformation, and current I-steel dog self rigidity is great, can't effectively utilize steel ductile deformation to dispel the earthquake energy, therefore in the bridge of high intensity earthquake district, often need set up energy consumption device such as other dampers in addition alone to dispel the earthquake energy, can increase engineering cost like this, and need to design the space of placing for energy consumption device alone, and normal operation stage also can cause the participation of energy consumption component, extra increase replacement cost, in the earthquake come temporarily, also be difficult to full play power consumption ability.
The post-earthquake repair difficulty is high, the replaceability is poor, once the bridge is basically unable to repair due to damage, even if the bridge can be repaired, the cost of economy and time is very high, and the bridge is possibly damaged seriously in a strong aftershock.
Disclosure of Invention
The invention aims to overcome the defects that the existing anti-falling beam stop block lacks earthquake energy consumption capability, has poor adaptability in a high-intensity earthquake region, needs to be independently additionally provided with a damper device for consuming energy, and the independently provided damper device not only has additional cost and multiple installation steps, but also has loss to energy-consuming components in a normal operation stage, and provides the unidirectional energy-consuming anti-falling beam device.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a one-way power consumption prevent roof beam device that falls, contains the bottom plate, be equipped with at least one buckled plate on the bottom plate, every the cross-section of buckled plate is the wave shape, every the extending direction of buckled plate is unanimous, every crest and trough both sides of buckled plate are equipped with the baffle respectively, all the baffle connect in the bottom plate, every the both ends of buckled plate all connect in the bottom plate, the bottom plate is used for connecting the pier, be equipped with the spacing groove on the plate body of buckled plate, be equipped with the slider in the spacing groove, the spacing direction of spacing groove is unanimous with the extending direction of buckled plate, under the initial state, the slider all has the clearance with the spacing groove both sides, the slider is used for connecting the roof beam body, perhaps the slider is used for connecting the pier, the bottom plate is used for connecting the roof beam body.
The unidirectional energy consumption beam falling prevention device provided by the invention is adopted, wherein the corrugated plate is a metal structural member with higher ductility, such as: the steel structural member or the aluminum structural member, namely the corrugated plate is used as the energy-consuming member, the corrugated plate is connected between the bridge pier and the beam body, when the beam body moves relative to the bridge pier, the corrugated plate can be driven to compress or stretch, the seismic energy is dissipated through the stretching and ductile deformation of the corrugated plate, when the corrugated plate is compressed, the wave crest and the wave trough of the corrugated plate can bulge outwards along the lateral direction, after a certain deformation amount is outwards protruded, the baffle plate is contacted with the wave crest and the wave trough of the corrugated plate to restrict the deformation of the corrugated plate, in the initial state, the sliding block and the two sides of the limiting groove are provided with gaps, namely in the normal use stage of the bridge, the sliding block can slide between the limiting grooves due to the deformation of temperature, load and the like, the limiting groove is arranged to enable the beam body to realize bidirectional movement in the normal operation state, meanwhile, the unidirectionally arranged energy-consuming member is reduced to participate in the energy consumption in the normal operation state, the device effectively combines the energy consumption component and the beam falling prevention device, so that the beam falling prevention device has obvious damping and energy consumption performance, has reasonable and concise structural form, is convenient for adding the energy consumption component according to the energy consumption requirement, simplifies the design, greatly reduces the manufacturing cost compared with the existing independent energy consumption component and beam falling prevention device, is convenient and quick to install and replace, saves the installation space, satisfies the bidirectional movement of the beam body and reduces the participation of the energy consumption component in the normal operation stage, can effectively consume energy and avoid beam falling temporarily in the earthquake, has the buffering of the energy consumption component, can avoid the rigid collision of the beam body and the beam falling prevention device, is convenient to repair after the earthquake, has good application prospect, and has great significance for large-span bridge construction in high-intensity areas of railway bridges in China.
Preferably, the corrugated plate comprises a first clamping plate, wherein the first clamping plate is used for clamping two ends of the corrugated plate, the first clamping plate is connected to two end parts of the baffle, and the first clamping plate is connected to the bottom plate.
Preferably, the corrugated plate further comprises a second clamping plate, wherein the second clamping plate is used for clamping the middle part of the corrugated plate, and the top of the second clamping plate is provided with the limiting groove.
Preferably, all the corrugated plates have a wave shape in vertical section, or all the corrugated plates have a wave shape in horizontal section.
Further preferably, all the corrugated plates are sequentially stacked or arranged side by side along the height direction, and two adjacent corrugated plates are aligned.
By adopting the arrangement mode, all corrugated plates are stacked in the height direction or arranged side by side in the width direction, so that the design and arrangement are convenient.
Preferably, the wave shape includes a sine wave shape and a square wave shape.
The wave shape includes a sine wave shape and a square wave shape, and the square wave shape includes a trapezoid wave shape and a rectangular wave shape.
Preferably, all the corrugated plates can be replaced by corrugated steel pipes.
Preferably, each baffle is provided with stiffening rib plates on the outer side, each baffle is provided with a rubber cushion layer on the inner side, and each wave crest and wave trough of each corrugated plate are provided with a buffer block.
The stiffening rib plates are arranged, so that the rigidity of the baffles at the two sides is improved, and deformation and damage of the baffles are avoided; the rubber cushion layer is arranged, so that the contact area between the rubber cushion layer and the corrugated plate is effectively increased, and the contact point is provided with a certain buffer; the buffer block can effectively play a role in buffering and dissipating energy, increase damping and avoid damage to energy-consuming components caused by overlarge impact force.
Preferably, all the corrugated plates have the same shape and size.
All the corrugated plates are all in shape and size, so that the design and calculation of energy consumption capacity are facilitated.
In summary, compared with the prior art, the invention has the following beneficial effects:
1. the unidirectional energy-dissipation beam falling prevention device effectively combines the energy dissipation components with the beam falling prevention device, so that the beam falling prevention device has remarkable damping and energy dissipation performances, has reasonable and concise structural form, is convenient to add the energy dissipation components according to energy dissipation requirements, simplifies design, can greatly reduce manufacturing cost compared with the existing independent energy dissipation components and beam falling prevention devices, is convenient and quick to install and replace, saves installation space, meets the bidirectional movement of a beam body and reduces participation of the energy dissipation components in a normal operation stage, can temporarily and effectively consume energy and avoid beam falling when an earthquake occurs, has the buffering of the energy dissipation components, can avoid rigid collision between the beam body and the beam falling prevention device, is convenient to repair after the earthquake, and has good application prospect, and particularly has great significance for large-span bridge construction in high-intensity areas of railway bridges in China.
Description of the drawings:
FIG. 1 is a schematic structural view of a unidirectional energy-consuming beam drop prevention device according to the present invention;
fig. 2 is a schematic structural view of a second clamping plate in embodiment 1;
fig. 3 is a schematic structural diagram of a unidirectional energy-consuming beam drop prevention device in embodiment 2;
fig. 4 is a schematic structural view of a second clamping plate in embodiment 2.
The marks in the figure: 1-bottom plate, 2-buckled plate, 3-baffle, 41-splint I, 42-splint II, 5-slider, 6-stiffening rib plate.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and specific examples. It should not be construed that the scope of the above subject matter of the present invention is limited to the following embodiments, and all techniques realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1-2, the unidirectional energy dissipation beam falling prevention device of the present invention comprises a steel bottom plate 1, a first clamping plate 41 and a second clamping plate 42, wherein at least one corrugated plate 2 is arranged on the bottom plate 1, all the corrugated plates 2 are sequentially stacked or arranged side by side along the height direction, two adjacent corrugated plates 2 are aligned, the arrangement mode is convenient for design and arrangement, each horizontal section of each corrugated plate 2 is in a wave shape, the wave shape comprises a sine wave shape and a square wave shape, the square wave shape comprises a trapezoid wave shape and a rectangular wave shape, the shape and the size of each corrugated plate 2 are the same, the shape and the size of each corrugated plate are the same as the design and calculation energy dissipation capacity, each corrugated plate 2 is consistent in extending direction, only one corrugated plate 2 is exemplified, each wave crest and each wave trough of each corrugated plate 2 are provided with a buffer block, each wave crest and each wave trough of each corrugated plate 2 are respectively provided with a baffle 3, all the bottom plates 3 are connected to the two ends of each corrugated plate 2, each corrugated plate 1 is connected to the two clamping plates 41, and each clamping plate 41 is further connected to two ends of each clamping plate 41.
The plate body of the corrugated plate 2 is provided with a limit groove, a sliding block 5 is arranged in the limit groove, the limit direction of the limit groove is consistent with the extending direction of the corrugated plate 2, and the corrugated plate further comprises a second clamping plate 42, the second clamping plate 42 is used for clamping the middle part of the corrugated plate 2, the top of splint two 42 is equipped with the spacing groove, under the initial state, slider 5 all has the clearance with spacing groove both sides, bottom plate 1 is used for connecting pier or roof beam body, slider 5 is used for connecting roof beam body or pier.
As a preferable scheme of the embodiment, the outer side of each baffle plate 3 is provided with a stiffening rib plate 6, the inner side of each baffle plate 3 is provided with a rubber cushion layer, and the stiffening rib plates are arranged, so that the rigidity of the baffle plates 3 on two sides is improved, and deformation and damage of the baffle plates are avoided; the rubber cushion layer is arranged, so that the contact area between the rubber cushion layer and the corrugated plate 2 is effectively increased, and the contact point is provided with a certain buffer.
By adopting the unidirectional energy-consumption beam falling prevention device, in the initial state, gaps are formed between the sliding blocks 5 and two sides of the limiting grooves, namely, the sliding blocks 5 can slide between the limiting grooves or slide along the axial direction of the limiting grooves due to deformation of temperature, load and the like in the normal operation stage of a bridge, so that the beam body can move bidirectionally, but the limiting effect of the limiting grooves ensures that the corrugated plates 2 do not participate in energy consumption in the normal operation state, and the loss on energy-consumption components is reduced.
The device effectively combines the energy consumption components with the beam falling prevention device, so that the beam falling prevention device has the remarkable damping and energy consumption performance, the structural form is reasonable and concise, the energy consumption components are convenient to add according to the energy consumption requirement, the design is simplified, compared with the existing independent energy consumption components and the beam falling prevention device, the device can greatly reduce the manufacturing cost, is convenient and quick to install and replace, saves the installation space, meets the bidirectional movement of the beam body and reduces the participation of the energy consumption components in the normal operation stage, can effectively consume energy and avoid beam falling temporarily in the earthquake, has good application prospect, and has great significance in the construction of large-span bridges in high-intensity areas of railway bridges in China.
Example 2
As shown in fig. 3-4, the structure of the one-way energy-dissipation beam falling prevention device is substantially the same as that of the embodiment 1, and the difference is that two corrugated plates 2 are provided, the vertical section of each corrugated plate 2 is in a wave shape, two clamping plates 42 of each corrugated plate 2 are connected with each other, the two corrugated plates 2 are sequentially stacked along the height direction, and a limit groove is arranged above the two clamping plates 42 on the upper layer.
The beam falling prevention device capable of achieving unidirectional energy consumption can effectively save installation height, the energy consumption capability can be effectively improved by arranging the plurality of corrugated plates, meanwhile, bidirectional movement of the beam body is met and participation of energy consumption components is reduced in a normal operation stage, the beam falling prevention device can effectively consume energy and avoid falling temporarily in an earthquake, and the beam falling prevention device has good application prospect and is particularly significant for large-span bridge construction in high-intensity areas of railway bridges in China.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (4)

1. The utility model provides a one-way power consumption prevent roof beam device that falls, its characterized in that contains bottom plate (1), be equipped with at least one buckled plate (2) on bottom plate (1), every the cross-section of buckled plate (2) is the wave shape, every the extending direction of buckled plate (2) is unanimous, every crest and trough both sides of buckled plate (2) are equipped with baffle (3) respectively, all baffle (3) connect in bottom plate (1), every both ends of buckled plate (2) all connect in bottom plate (1), bottom plate (1) are used for connecting the pier, be equipped with the spacing groove on the plate body of buckled plate (2), be equipped with slider (5) in the spacing groove, under the initial state, slider (5) all have the clearance with the spacing groove both sides, slider (5) are used for connecting the roof beam body, perhaps slider (5) are used for connecting, bottom plate (1) are used for connecting the roof beam body;
the corrugated plate comprises a corrugated plate (2) and is characterized by further comprising a clamping plate I (41), wherein the clamping plate I (41) is used for clamping two ends of the corrugated plate (2), the clamping plate I (41) is connected to two end parts of the baffle plate (3), and the clamping plate I (41) is connected to the bottom plate (1);
the corrugated plate is characterized by further comprising a second clamping plate (42), wherein the second clamping plate (42) is used for clamping the middle part of the corrugated plate (2), and the top of the second clamping plate (42) is provided with the limit groove;
the vertical sections of all the corrugated plates (2) are in a wave shape, or the horizontal sections of all the corrugated plates (2) are in a wave shape;
all the corrugated plates (2) are sequentially stacked or arranged side by side along the height direction, and two adjacent corrugated plates (2) are aligned;
every the outside of baffle (3) all is equipped with stiffening rib plate (6), every the inboard of baffle (3) all is equipped with the rubber cushion, be equipped with the buffer block in every crest and the trough of buckled plate (2).
2. The drop beam device of claim 1, wherein the wave shape comprises a sine wave shape and a square wave shape.
3. The beam drop prevention device according to claim 1, characterized in that all corrugated plates (2) can be replaced with corrugated steel pipes.
4. The beam drop prevention device according to claim 1, characterized in that the shape and dimensions of all corrugated plates (2) are identical.
CN201910470561.0A 2019-05-31 2019-05-31 Beam falling prevention device with unidirectional energy consumption Active CN110055879B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910470561.0A CN110055879B (en) 2019-05-31 2019-05-31 Beam falling prevention device with unidirectional energy consumption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910470561.0A CN110055879B (en) 2019-05-31 2019-05-31 Beam falling prevention device with unidirectional energy consumption

Publications (2)

Publication Number Publication Date
CN110055879A CN110055879A (en) 2019-07-26
CN110055879B true CN110055879B (en) 2024-01-30

Family

ID=67325383

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910470561.0A Active CN110055879B (en) 2019-05-31 2019-05-31 Beam falling prevention device with unidirectional energy consumption

Country Status (1)

Country Link
CN (1) CN110055879B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111589008A (en) * 2020-05-30 2020-08-28 陈韬 Safety protection type building straight-jump escape device
CN111878538B (en) * 2020-08-27 2024-05-07 中铁二院工程集团有限责任公司 Shear type energy-consumption beam falling prevention device
CN114880750B (en) * 2022-05-31 2023-07-07 中铁二院工程集团有限责任公司 Design method of railway bridge energy consumption beam falling prevention device

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002188243A (en) * 2000-12-21 2002-07-05 Taisei Corp Composite structural column
KR20100054889A (en) * 2008-11-15 2010-05-26 고려대학교 산학협력단 Development of fabricated internally confined hollow concrete filled tube using corrugated tube
KR20120008399A (en) * 2010-07-16 2012-01-30 주식회사 도시와광고 Rain receptacle for a rail-road bridges
JP2014029106A (en) * 2012-07-06 2014-02-13 Nippon Steel & Sumikin Engineering Co Ltd Seismic control device, installation method for the same, and waveform plate
KR101378700B1 (en) * 2012-10-09 2014-03-28 한국기술교육대학교 산학협력단 Unit modular seismic absorbing apparatus for rahmen structures
WO2014178158A1 (en) * 2013-05-02 2014-11-06 新日鉄住金エンジニアリング株式会社 Vibration control device, vibration control device installation method, and waveform plate
CN204435320U (en) * 2015-01-28 2015-07-01 湖南大学 The bridge anti-ship collision device of corrugated steel tube-Combined concrete and anti-vessel-bridge collision
CN204608592U (en) * 2015-04-22 2015-09-02 西安科技大学 A kind of bridge energy-dissipating and shock-absorbing anti-fall girder apparatus
JP2017031800A (en) * 2016-09-08 2017-02-09 Jfeシビル株式会社 Seismic strengthening damper for structure
CN106948255A (en) * 2017-04-18 2017-07-14 西南交通大学 A kind of double stop assemblies of trigger-type bridge earthquake resistance
CN206768573U (en) * 2017-04-18 2017-12-19 西南交通大学 A kind of double stop assemblies of trigger-type bridge earthquake resistance
CN208455453U (en) * 2018-05-31 2019-02-01 重庆工程职业技术学院 A kind of science of bridge building damping rubber block
CN210031473U (en) * 2019-05-31 2020-02-07 中铁二院工程集团有限责任公司 One-way energy-consumption beam falling prevention device

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002188243A (en) * 2000-12-21 2002-07-05 Taisei Corp Composite structural column
KR20100054889A (en) * 2008-11-15 2010-05-26 고려대학교 산학협력단 Development of fabricated internally confined hollow concrete filled tube using corrugated tube
KR20120008399A (en) * 2010-07-16 2012-01-30 주식회사 도시와광고 Rain receptacle for a rail-road bridges
JP2014029106A (en) * 2012-07-06 2014-02-13 Nippon Steel & Sumikin Engineering Co Ltd Seismic control device, installation method for the same, and waveform plate
KR101378700B1 (en) * 2012-10-09 2014-03-28 한국기술교육대학교 산학협력단 Unit modular seismic absorbing apparatus for rahmen structures
WO2014178158A1 (en) * 2013-05-02 2014-11-06 新日鉄住金エンジニアリング株式会社 Vibration control device, vibration control device installation method, and waveform plate
CN204435320U (en) * 2015-01-28 2015-07-01 湖南大学 The bridge anti-ship collision device of corrugated steel tube-Combined concrete and anti-vessel-bridge collision
CN204608592U (en) * 2015-04-22 2015-09-02 西安科技大学 A kind of bridge energy-dissipating and shock-absorbing anti-fall girder apparatus
JP2017031800A (en) * 2016-09-08 2017-02-09 Jfeシビル株式会社 Seismic strengthening damper for structure
CN106948255A (en) * 2017-04-18 2017-07-14 西南交通大学 A kind of double stop assemblies of trigger-type bridge earthquake resistance
CN206768573U (en) * 2017-04-18 2017-12-19 西南交通大学 A kind of double stop assemblies of trigger-type bridge earthquake resistance
CN208455453U (en) * 2018-05-31 2019-02-01 重庆工程职业技术学院 A kind of science of bridge building damping rubber block
CN210031473U (en) * 2019-05-31 2020-02-07 中铁二院工程集团有限责任公司 One-way energy-consumption beam falling prevention device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
特大跨悬索桥索塔波形钢腹板横梁抗震性能试验研究(Ⅱ):试验结果及性能评估;刘少乾;吴涤;唐德强;周道良;;公路交通技术(第05期);全文 *

Also Published As

Publication number Publication date
CN110055879A (en) 2019-07-26

Similar Documents

Publication Publication Date Title
CN110055879B (en) Beam falling prevention device with unidirectional energy consumption
CN110055880B (en) Damping energy-consumption beam falling prevention device for railway bridge
CN210031475U (en) Anti-beam-falling energy consumption device for bridge
CN109778685B (en) Additional damping limit stop capable of quantitatively sliding
CN111425038A (en) Non-prestress self-resetting energy dissipation supporting device with variable friction damper
CN210031473U (en) One-way energy-consumption beam falling prevention device
CN114775413A (en) Existing pier anti-seismic performance improving structure and method based on inertial container shock insulation and swing
CN111119034B (en) Combined rubber shock-absorbing support with limiting rigidity difference of inhaul cable
CN111981087B (en) Metal energy consumption limiting and beam falling preventing device for bridge
CN210031474U (en) Railway bridge is with shock attenuation power consumption beam device that prevents falling
CN113265939A (en) Multi-friction damping energy dissipation reset anti-seismic stop block structure
CN210031476U (en) Bidirectional energy-consumption beam falling prevention device
CN210104542U (en) Energy-consuming beam-falling-preventing device for controlling displacement of main beam
CN116876265B (en) Vibration reduction track structure used in railway traffic
CN203346787U (en) Flat steel spring plate expansion joint
CN203238538U (en) Flat spring plate type rubber expansion joint
CN110130210B (en) Mounting method of beam-falling-preventing energy consumption device
CN111878538B (en) Shear type energy-consumption beam falling prevention device
CN213173312U (en) Energy consumption stop device for bridge
CN217733721U (en) Multi-friction damping energy dissipation reset anti-seismic stop block structure
CN212297392U (en) Shearing type energy-consumption beam-falling-preventing device
CN210104545U (en) Connection structure of energy-consuming beam-falling-preventing device
CN114214876B (en) Anti-seismic ballastless track structure
CN213173314U (en) Energy-consuming and beam-falling preventing device for metal pipe for railway bridge
CN211113110U (en) Steel structure bridge with steel-concrete combined cross beam arranged at beam end

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant