CN108374335A - A kind of multiple protective girder girder falling and energy-consuming device and preparation method thereof - Google Patents
A kind of multiple protective girder girder falling and energy-consuming device and preparation method thereof Download PDFInfo
- Publication number
- CN108374335A CN108374335A CN201810443500.0A CN201810443500A CN108374335A CN 108374335 A CN108374335 A CN 108374335A CN 201810443500 A CN201810443500 A CN 201810443500A CN 108374335 A CN108374335 A CN 108374335A
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- Prior art keywords
- bridge pier
- beam body
- drag
- line
- girder
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The present invention relates to bridge earthquake resistances and field of shock absorption; more particularly to a kind of multiple protective girder girder falling and energy-consuming device and preparation method thereof, including bridge pier, bearing pad stone is provided with above bridge pier; bearing pad stone is equipped with rubber support, and drag-line and damping device are equipped between bridge pier and beam body.Production method based on above-mentioned apparatus, by the reinforcing bar of bridge pier, the reinforcing bar of horizontal pre-embedded steel slab and longitudinal block bind that installation is complete by sequence of construction successively, then pours into a mould the concrete of bridge pier and longitudinal direction block, installation damping cushion；Rubber support is installed later, lifts beam body, drag-line is installed.Under small shake effect, prevent adjacent two beam body from hard collision occurs by longitudinal block damping energy consumption with damping cushion.Under big shake effect, longitudinal block is cut up, and drag-line plays a role, and can limit the excessive displacement amplitude of beam body vertical and horizontal simultaneously, and the generation of restrainer earthquake improves bridge entirety anti-seismic performance level, extends its service life.
Description
Technical field
The present invention relates to bridge earthquake resistances and field of shock absorption, and in particular to a kind of multiple protective girder girder falling and energy-consuming device
And preparation method thereof.
Technical background
In the late three decades, domestic and international earthquake disaster takes place frequently, and many bridge collapses or major injury have cut off earthquake region traffic
Lifeline causes huge life and property loss；Include in all previous earthquake Bridge typical damage form：Fall beam earthquake, branch
Seat sliding, expansion joint destroy, block destroys, adjacent girder collides earthquake and abutment crack earthquake；Short/Medium Span Bridge is general at present
Contribute to the seismic response of reduction superstructure all over the sliding mechanism using laminated rubber bearing, laminated rubber bearing, and one
Determine to protect bridge pier and basis from larger eaerthquake damage in degree；But in some highlight lines area, bridge is made in earthquake
Larger displacement will occur with lower, superstructure will be caused to collide or fall beam earthquake after displacement is more than permissible value, sternly
Ghost image rings the development of rescue work after shake.
Invention content
In order to solve the above technical problems, a kind of multiple protective girder girder falling of present invention offer and energy-consuming device and its making
Method is solved bridge and longitudinal and transverse bridge is easily occurred under geological process to substantially deviation and is fallen using the combination of damping device and drag-line
The defect of beam improves the anti-seismic performance of bridge structure.The technical solution adopted in the present invention is：Including bridge pier, above bridge pier
It is provided with bearing pad stone, the bearing pad stone is equipped with the rubber support being supported below beam body, between bridge pier and beam body also
Tensioning has drag-line, and damping device is additionally provided among the bridge pier and beam body.
Described drag-line one end is connect by spherical interconnecting piece with beam body, is additionally provided in the beam body and is slided for spherical interconnecting piece
Dynamic steel guide groove, the drag-line other end are pre- by spherical bellend and the level with reserved steel beam hole being arranged on bridge pier
Bury steel plate connection.
The steel guide groove is welded in beam body by pre-embedded steel slab.
The spherical interconnecting piece of the drag-line and spherical bellend are the claim-reduction using spherical steel sleeve compression moulding.
The damping device includes being arranged to pour with the use ultra-high performance concrete UTFC below beam body above bridge pier
Longitudinal block, it is described longitudinal direction block adjacent surface be provided with damping cushion.
Production method based on above-mentioned multiple protective girder girder falling and energy-consuming device：
Step 1：By the reinforcing bar of bridge pier, the reinforcing bar of horizontal pre-embedded steel slab and longitudinal block is bound peace by sequence of construction successively
It installs into；
Step 2：The template of bridge pier and longitudinal block is installed, then the concrete of cast-in-site bridge pier and longitudinal block,
Middle longitudinal direction block is poured using ultra-high performance concrete UTFC, is finally subtracted what the installation of the adjacent surface of longitudinal block worked as a buffer
Shake cushion block；
Step 3：The form removal after the mechanical performance index of concrete reaches design requirement installs rubber support, lifting
Beam body；
Step 4：Drag-line is installed, one end is connect with bridge pier, and the other end is slidably connected with beam body；Drag-line one end passes through ball
Shape interconnecting piece is stuck in the steel guide groove of beam body corresponding position, and the other end is connected to the horizontal pre-buried steel that steel beam hole is reserved on bridge pier
Then plate is pressed into corresponding spherical bellend to the end drag-line using spherical steel sleeve.
The beneficial effects of the invention are as follows：
Due to being provided with damping device and drag-line, when bridge is acted on by small earthquakes, limited by damping device
Beam body processed generates excessive displacement damping and consumes energy and prevent adjacent two beam body from hard collision occurs.When bridge is acted on by big shake
When, drag-line plays a role, and can limit the excessive displacement amplitude of beam body vertical and horizontal simultaneously, and the generation of restrainer earthquake carries
High bridge entirety anti-seismic performance is horizontal, prolongs the service life.
Since longitudinal block is poured using ultra-high performance concrete UTFC, has the effect of more safe and reliable, Er Qieke
Meet the design requirement of different earthquake resistant engineerings with the beam number of proportioning and drag-line by adjusting ultra-high performance concrete UTFC.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1.
Fig. 2 is longitudinal block regional enlarged drawing of the embodiment of the present invention 1.
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 2.
Fig. 4 is longitudinal block regional enlarged drawing of the embodiment of the present invention 2.
Fig. 5 is cross-sectional view of the present invention.
Fig. 6 is the structural schematic diagram of steel guide groove in the present invention.
Fig. 7 is the cross-sectional view of steel guide groove in the present invention.
Fig. 8 is horizontal pre-embedded steel slab vertical view in the present invention.
In figure：1- bridge piers, 2- bearing pad stones, 3- rubber supports, 4- beam bodies, 5- spherical shape interconnecting pieces, 6- spherical shape bellends, 7-
Steel guide groove, 8- pre-embedded steel slabs, 9- weld seams, 10- drag-lines, the horizontal pre-embedded steel slabs of 11-, the longitudinal directions 12- block, 13- damping cushions, 14-
Reserved steel beam hole, 15- embedded bars.
Specific implementation mode
Ultra-tough fiber concrete Ultra-high Toughess Fiber Concrete (UTFC) in the art are
One proprietary name is generally referred in the present invention with superhigh intensity, high ductility, high workability, durability is good and can be suitably used for
The concrete for pouring Antivibration block is the another kind of mechanical property for opposite normal concrete, high performance concrete
More excellent concrete material, such as Reactive Powder Concrete, very-high performance fibre reinforced concrete, slip casting fiber coagulation
It is native, closely knit to match rib reinforced composite material or engineering latex composite material etc., but preferably Reactive Powder Concrete, very-high performance fiber increase
Reinforced concrete or slip casting fiber concrete.
Embodiment 1
As shown in Figure 1,5, a kind of multiple protective girder girder falling and energy-consuming device and preparation method thereof, which is characterized in that
Including bridge pier 1, bearing pad stone 2 is provided with above bridge pier 1, the bearing pad stone 2 is equipped with the rubber for being supported on 4 lower section of beam body
Bearing 3, between bridge pier 1 and beam body 4 also tensioning have drag-line 10, as shown in Fig. 2, the both sides of bridge direction of traffic pier coping portion and
The bottom of beam body corresponding position is equipped with longitudinal block 12, and the adjacent surface of longitudinal block 12 has been fixedly connected with damping cushion 13.
Production method based on above-mentioned multiple protective girder girder falling and energy-consuming device：
Step 1：By the reinforcing bar of bridge pier 1, the reinforcing bar of horizontal pre-embedded steel slab 11 and longitudinal block 12 is tied up successively by sequence of construction
Installation is complete for bundle；
Step 2：The template of bridge pier 1 and longitudinal block 12 is installed, then cast-in-site bridge pier 1 and longitudinal block 12 is mixed
Solidifying soil is finally installed in the adjacent surface of longitudinal block 12 wherein longitudinal block 12 is poured using ultra-high performance concrete UTFC
The damping cushion 13 of cushioning effect；
Step 3：The form removal after the mechanical performance index of concrete reaches design requirement is installed rubber support 3, is hung
Fill beam body 4；
Step 4：As shown in Figure 6,7, drag-line 10 is installed, one end is connect with bridge pier 1, and the other end connects with the sliding of beam body 4
It connects；10 one end of drag-line is stuck in by spherical interconnecting piece 5 in the steel guide groove 7 of 4 corresponding position of beam body, as shown in figure 8, the other end connects
The horizontal pre-embedded steel slab 11 of steel beam hole 14 is reserved on bridge pier 1, and phase then is pressed into using spherical steel sleeve to the end drag-line 10
The spherical bellend 6 answered completes multiple protective girder girder falling and energy-consuming device.
The drag-line 10 of the present embodiment uses the low decrement of high intensity and has the steel strand wires of energy consumption function, and single beam nominal is straight
Diameter is 15.24mm, tensile strength 1970MPa.
It has been blocked close to one end of bridge pier when steel guide groove 7 makes, and the other end far from bridge pier waits for the company of drag-line 10
Socket part 5 is blocked after installing using corresponding plug, is skidded off in use to prevent interconnecting piece 5.
The present invention has given full play to the effect of the limitation sliding displacement amplitude of longitudinal block 12 and energy consumption and drag-line 10 and has prevented
The effect for falling beam, mitigating earthquake, plays and subtracts function of shock insulation well, significantly improve the safety of bridge structure.
Embodiment 2
As shown in Fig. 3,5, a kind of multiple protective girder girder falling and energy-consuming device and preparation method thereof, which is characterized in that
Including bridge pier 1, bearing pad stone 2 is provided with above bridge pier 1, the bearing pad stone 2 is equipped with the rubber for being supported on 4 lower section of beam body
Bearing 3, between bridge pier 1 and beam body 4 also tensioning have drag-line 10, as shown in figure 4, on the outside of bridge pier 1 corresponding position of beam body bottom
Equipped with longitudinal block 12, longitudinal block 12 and the adjacent surface of bridge pier 1 are fixedly connected with damping cushion 13.
Production method based on above-mentioned multiple protective girder girder falling and energy-consuming device：
Step 1：By the reinforcing bar of bridge pier 1, the reinforcing bar of horizontal pre-embedded steel slab 11 and longitudinal block 12 is tied up successively by sequence of construction
Installation is complete for bundle；
Step 2：The template of bridge pier 1 and longitudinal block 12 is installed, then cast-in-site bridge pier 1 and longitudinal block 12 is mixed
Solidifying soil is finally pacified in the adjacent surface of longitudinal block and bridge pier wherein longitudinal block 12 is poured using ultra-high performance concrete UTFC
Load the damping cushion 13 of cushioning effect；
Step 3：The form removal after the mechanical performance index of concrete reaches design requirement is installed rubber support 3, is hung
Fill beam body 4；
Step 4：As shown in Figure 6,7, drag-line 10 is installed, one end is connect with bridge pier 1, and the other end connects with the sliding of beam body 4
It connects；10 one end of drag-line is stuck in by spherical interconnecting piece 5 in the steel guide groove 7 of 4 corresponding position of beam body, as shown in figure 8, the other end connects
The horizontal pre-embedded steel slab 11 of steel beam hole 14 is reserved on bridge pier 1, and phase then is pressed into using spherical steel sleeve to the end drag-line 10
The spherical bellend 6 answered completes multiple protective girder girder falling and energy-consuming device.
The drag-line 10 of the present embodiment uses the low decrement of high intensity and has the steel strand wires of energy consumption function, and single beam nominal is straight
Diameter is 15.24mm, tensile strength 1970MPa.
It has been blocked close to one end of bridge pier when steel guide groove 7 makes, and the other end far from bridge pier 1 waits for the company of drag-line 10
Socket part 5 is blocked after installing using corresponding plug, is skidded off in use to prevent spherical interconnecting piece 5.
The present invention has given full play to the effect of the limitation sliding displacement amplitude of longitudinal block 12 and energy consumption and drag-line 10 and has prevented
The effect for falling beam, mitigating earthquake, plays and subtracts function of shock insulation well, significantly improve the safety of bridge structure.
The damping cushion 13 of above example can be replaced foamed plastics cushion block or rubber cushion blocks etc..
The configuration of the present invention is simple, mechanical model clear and definite, quick construction is convenient, can be effective by reasonably analyzing calculating
Dissipation seismic energy achievees the purpose that beam body 4 is vertically and horizontally limited and consumed energy, to improve the anti-seismic performance of bridge structure entirety.
Claims (6)
1. a kind of multiple protective girder girder falling and energy-consuming device, which is characterized in that including bridge pier (1) and be disposed thereon
Beam body 4 has bearing pad stone (2) and rubber support (3), in bridge pier (1) and beam successively from bottom to top in bridge pier (1) between beam body
Also tensioning has drag-line (10) between body (4), and damping device is additionally provided among the bridge pier (1) and beam body (4).
2. a kind of multiple protective girder girder falling according to claim 1 and energy-consuming device, which is characterized in that the drag-line
(10) one end is connect by spherical interconnecting piece (5) with beam body (4), is additionally provided on the beam body (4) sliding for spherical interconnecting piece (5)
Dynamic steel guide groove (7), drag-line (10) other end are reserved by spherical bellend (7) and setting carrying on bridge pier (1)
The horizontal pre-embedded steel slab (11) of steel beam hole (14) connects.
3. a kind of multiple protective girder girder falling according to claim 2 and energy-consuming device, which is characterized in that the steel is led
Slot (7) is welded in beam body (4) by pre-embedded steel slab (8).
4. a kind of multiple protective girder girder falling according to claim 1 and energy-consuming device, which is characterized in that the drag-line
(10) spherical interconnecting piece (5) and spherical bellend (6) is the claim-reduction using spherical steel sleeve compression moulding.
5. a kind of multiple protective girder girder falling according to claim 1 and energy-consuming device, which is characterized in that the damping
Device includes the longitudinal block that using ultra-high performance concrete UTFC is poured of the setting above bridge pier (1) and below beam body (4)
(12), described longitudinal block (12) adjacent surface is provided with damping cushion (13).
6. the production method based on multiple protective girder girder falling and energy-consuming device described in any one of claim 1-5：
Step 1：By the reinforcing bar of bridge pier (1), the reinforcing bar of horizontal pre-embedded steel slab (11) and longitudinal block (12) presses sequence of construction successively
Installation is complete for binding；
Step 2：The template of bridge pier (1) and longitudinal block (12) is installed, then cast-in-site bridge pier (1) and longitudinal block (12)
Concrete, wherein longitudinal block (12) is poured using ultra-high performance concrete UTFC, finally in the adjacent of longitudinal block (12)
Face is installed by the damping cushion (13) worked as a buffer；
Step 3：The form removal after the mechanical performance index of concrete reaches design requirement, installation rubber support (3), lifting
Beam body (4)；
Step 4：Drag-line (10) is installed, one end is connect with bridge pier (1), and the other end is slidably connected with beam body (4)；Drag-line (10)
One end is stuck in by spherical interconnecting piece (5) in the steel guide groove (7) of beam body (4) corresponding position, and the other end is connected on bridge pier (1) in advance
The horizontal pre-embedded steel slab (11) of steel beam hole (14) is stayed, corresponding ball then is pressed into using spherical steel sleeve to the end drag-line (10)
Shape bellend (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443500.0A CN108374335A (en) | 2018-05-10 | 2018-05-10 | A kind of multiple protective girder girder falling and energy-consuming device and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443500.0A CN108374335A (en) | 2018-05-10 | 2018-05-10 | A kind of multiple protective girder girder falling and energy-consuming device and preparation method thereof |
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| CN108374335A true CN108374335A (en) | 2018-08-07 |
Family
ID=63033270
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| CN201810443500.0A Pending CN108374335A (en) | 2018-05-10 | 2018-05-10 | A kind of multiple protective girder girder falling and energy-consuming device and preparation method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555009A (en) * | 2019-01-24 | 2019-04-02 | 湖南中腾土木工程技术有限公司 | A kind of support and beam body seismic isolation and reduction structure system and its application |
| CN109610301A (en) * | 2019-01-29 | 2019-04-12 | 中铁二院工程集团有限责任公司 | Nearly tomography bridge damping energy consumption three-dimensional limit metal damping unit and installation method |
| CN110396913A (en) * | 2019-08-07 | 2019-11-01 | 湖南联智桥隧技术有限公司 | It is a kind of to prevent the high pier bridge bridge pier deviation device of big longitudinal slope |
| CN111155418A (en) * | 2020-01-15 | 2020-05-15 | 东南大学 | Beam falling prevention device and method using fabricated bridge hanging point structure |
| CN111455823A (en) * | 2020-04-30 | 2020-07-28 | 重庆交通大学 | Longitudinal beam falling prevention device |
| CN111455818A (en) * | 2020-04-07 | 2020-07-28 | 中冶南方城市建设工程技术有限公司 | Anti-inclination covering type bridge limit stop block device |
| CN111560830A (en) * | 2020-04-21 | 2020-08-21 | 中铁武汉勘察设计研究院有限公司 | Bridge without fixed support |
| CN111560841A (en) * | 2020-06-08 | 2020-08-21 | 中国地震局工程力学研究所 | Embedded energy-consuming type bridge beam falling prevention device |
| CN112144379A (en) * | 2020-09-25 | 2020-12-29 | 中国地震局工程力学研究所 | Assembled buffering beam falling prevention device |
| CN112160232A (en) * | 2020-09-24 | 2021-01-01 | 中国地震局工程力学研究所 | Embedded roof beam device that falls is prevented |
| CN112195754A (en) * | 2020-09-25 | 2021-01-08 | 陈松 | Anti-collision connecting device for bridge |
| CN112523070A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
| CN113136789A (en) * | 2021-05-06 | 2021-07-20 | 中国地震局工程力学研究所 | Rotary box girder anti-falling device |
| CN113914235A (en) * | 2021-11-23 | 2022-01-11 | 长安大学 | Transverse anti-overturning catastrophe reinforcement design method for single-column pier bridge |
| CN113944097A (en) * | 2021-10-26 | 2022-01-18 | 北京工业大学 | Friction energy consumption-self-reset beam falling prevention device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11269822A (en) * | 1998-03-23 | 1999-10-05 | Yokohama Rubber Co Ltd:The | Falling prevention device for bridge |
| CN203846390U (en) * | 2014-05-24 | 2014-09-24 | 长安大学 | Girder falling prevention device based on bridge girder body damping |
| CN106368115A (en) * | 2016-09-28 | 2017-02-01 | 同济大学 | Novel shock insulation system suitable for medium and small-span beam bridges |
| CN106436559A (en) * | 2016-11-18 | 2017-02-22 | 南昌大学 | Transverse-direction low-yield-point energy dissipation type steel bridge anti-seismic stop block structure and arranging method |
| CN206512589U (en) * | 2017-02-24 | 2017-09-22 | 西南交通大学 | A kind of longitudinal girder falling of bridge and crash device |
| CN208685436U (en) * | 2018-05-10 | 2019-04-02 | 长安大学 | A kind of energy-consuming device of multiple protective girder girder falling |
-
2018
- 2018-05-10 CN CN201810443500.0A patent/CN108374335A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11269822A (en) * | 1998-03-23 | 1999-10-05 | Yokohama Rubber Co Ltd:The | Falling prevention device for bridge |
| CN203846390U (en) * | 2014-05-24 | 2014-09-24 | 长安大学 | Girder falling prevention device based on bridge girder body damping |
| CN106368115A (en) * | 2016-09-28 | 2017-02-01 | 同济大学 | Novel shock insulation system suitable for medium and small-span beam bridges |
| CN106436559A (en) * | 2016-11-18 | 2017-02-22 | 南昌大学 | Transverse-direction low-yield-point energy dissipation type steel bridge anti-seismic stop block structure and arranging method |
| CN206512589U (en) * | 2017-02-24 | 2017-09-22 | 西南交通大学 | A kind of longitudinal girder falling of bridge and crash device |
| CN208685436U (en) * | 2018-05-10 | 2019-04-02 | 长安大学 | A kind of energy-consuming device of multiple protective girder girder falling |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555009A (en) * | 2019-01-24 | 2019-04-02 | 湖南中腾土木工程技术有限公司 | A kind of support and beam body seismic isolation and reduction structure system and its application |
| CN109555009B (en) * | 2019-01-24 | 2023-08-15 | 湖南中腾土木工程技术有限公司 | Support and beam body shock absorption and insulation structure system and application thereof |
| CN109610301A (en) * | 2019-01-29 | 2019-04-12 | 中铁二院工程集团有限责任公司 | Nearly tomography bridge damping energy consumption three-dimensional limit metal damping unit and installation method |
| CN109610301B (en) * | 2019-01-29 | 2023-08-04 | 中铁二院工程集团有限责任公司 | Damping energy consumption three-way limiting metal damping device for near-fault bridge and installation method |
| CN110396913A (en) * | 2019-08-07 | 2019-11-01 | 湖南联智桥隧技术有限公司 | It is a kind of to prevent the high pier bridge bridge pier deviation device of big longitudinal slope |
| CN110396913B (en) * | 2019-08-07 | 2023-12-22 | 湖南联智科技股份有限公司 | Device for preventing pier from deviating in high pier bridge of large longitudinal slope |
| CN111155418B (en) * | 2020-01-15 | 2021-08-06 | 东南大学 | Beam falling prevention device and method using fabricated bridge hanging point structure |
| CN111155418A (en) * | 2020-01-15 | 2020-05-15 | 东南大学 | Beam falling prevention device and method using fabricated bridge hanging point structure |
| CN111455818A (en) * | 2020-04-07 | 2020-07-28 | 中冶南方城市建设工程技术有限公司 | Anti-inclination covering type bridge limit stop block device |
| CN111560830A (en) * | 2020-04-21 | 2020-08-21 | 中铁武汉勘察设计研究院有限公司 | Bridge without fixed support |
| CN111455823B (en) * | 2020-04-30 | 2021-07-27 | 重庆交通大学 | Longitudinal beam falling prevention device |
| CN111455823A (en) * | 2020-04-30 | 2020-07-28 | 重庆交通大学 | Longitudinal beam falling prevention device |
| CN111560841A (en) * | 2020-06-08 | 2020-08-21 | 中国地震局工程力学研究所 | Embedded energy-consuming type bridge beam falling prevention device |
| CN111560841B (en) * | 2020-06-08 | 2021-07-27 | 中国地震局工程力学研究所 | Embedded energy-consuming type bridge beam falling prevention device |
| CN112160232A (en) * | 2020-09-24 | 2021-01-01 | 中国地震局工程力学研究所 | Embedded roof beam device that falls is prevented |
| CN112160232B (en) * | 2020-09-24 | 2021-11-09 | 中国地震局工程力学研究所 | Embedded roof beam device that falls is prevented |
| CN112195754A (en) * | 2020-09-25 | 2021-01-08 | 陈松 | Anti-collision connecting device for bridge |
| CN112144379A (en) * | 2020-09-25 | 2020-12-29 | 中国地震局工程力学研究所 | Assembled buffering beam falling prevention device |
| CN112523070A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
| CN113136789A (en) * | 2021-05-06 | 2021-07-20 | 中国地震局工程力学研究所 | Rotary box girder anti-falling device |
| CN113136789B (en) * | 2021-05-06 | 2022-06-24 | 中国地震局工程力学研究所 | Rotary box girder anti-falling device |
| CN113944097A (en) * | 2021-10-26 | 2022-01-18 | 北京工业大学 | Friction energy consumption-self-reset beam falling prevention device |
| CN113914235A (en) * | 2021-11-23 | 2022-01-11 | 长安大学 | Transverse anti-overturning catastrophe reinforcement design method for single-column pier bridge |
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