CN208309365U - It is a kind of to lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake - Google Patents
It is a kind of to lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake Download PDFInfo
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- CN208309365U CN208309365U CN201820275429.5U CN201820275429U CN208309365U CN 208309365 U CN208309365 U CN 208309365U CN 201820275429 U CN201820275429 U CN 201820275429U CN 208309365 U CN208309365 U CN 208309365U
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- vertical displacement
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Abstract
Lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake the utility model discloses a kind of, including the steel plate B for being set to bent cap upper end and the steel plate A for being set to end floor beam side, the lower surface the steel plate B is provided with the anchor bar A being fixedly connected with bent cap, upper surface is provided with steel plate C, the side the steel plate A is provided with the anchor bar B being fixedly connected with end floor beam, the other side is provided with steel plate D, the steel plate D and steel plate C articulated connection, and the axis of the steel plate D and steel plate C is mutually perpendicular to.The utility model prevent bridge superstructure under geological process upthrow and it is damaged, meet 9 degree of area's Bridge Design code requirements.The utility model can adapt to a variety of Bridge Types, such as precast prestressed concrete small box girder, precast prestressed concrete plate-girder, cast-in-place box beam, cast-in-place concrete plate-girder, steel box-girder, while have good landscape effect.
Description
Technical field
The utility model relates to a kind of antishock devices, are suitable for limitation multiple spot earthquake more specifically, it relates to one kind and lead
Cause the device of bridge vertical displacement.
Background technique
In recent years, global earthquake takes place frequently, and causes very heavy life and property loss, a critically important reason is bridge
Beam engineering meets with serious destruction in earthquake, has cut off earthquake region transportation lifeline, has caused the great difficulty of disaster relief work, has made secondary
Disaster aggravates, so as to cause huge loss.
Currently, China is in the peak period of bridge construction, the Aseismic Design for paying attention to science of bridge building is necessary, and bridge is made
For project of vital and lasting importance engineering, it is irreplaceable public transit facility, plays an important role in people's daily life, bridge
Influence of the build guality to people's daily life is also far-reaching and permanent.In addition, China is earthquake-prone countries, in great calamity
When difficult, bridge can not be destroyed and disaster is made to be minimized degree, all reflect the importance of Bridge Earthquake Resistance Design.In order to have
Effect improves the build guality of bridge, bridge damaging property in earthquake disaster is avoided to damage, it is necessary to which the antidetonation for reinforcing bridge is set
Meter.
Destroying for times earthquake shows the serious consequence that science of bridge building is destroyed again and again, also shows bridge work again and again
The importance of journey Aseismic Design.From after Tangshan Earthquake in 1976, the bridge earthquake resistance work in China is paid more and more attention and develops.
Recent years, " code for sesmic design of railway engineering " in China, " Seismic Design of Highway Bridges detailed rules and regulations ", " highway engineering antidetonation
Specification " and " Urban Bridge earthquake resistant design code " successively revised or worked out.These specifications introduce new bridge
Beam aseismatic design concept, perfect corresponding Seismic Design Method and construction measure provide weight for Bridges in Our Country Aseismic Design
It will foundation.
The macroscopic appearance of earthquake shows that the influence of ground vertical motion in meizoseismal area is significant.In seimic disaster census mistake
Cheng Zhong, the earthquake region people are generally reflected, are to beat when earthquake starts above and below, are then only horizontal jitter.Therefore corresponding bridge is set
Code requirement is counted, it is damaged to prevent superstructure upthrow for 9 degree area's bridge movable bearing supports, it should use and limit vertical displacement
Measure.
Utility model content
The purpose of this utility model is to overcome deficiencies in the prior art, provide a kind of suitable for limiting multiple spot
Shake leads to the device of bridge vertical displacement, prevents bridge superstructure upthrow and damaged, 9 degree of area's bridges of satisfaction under geological process
Design specification requirement.The utility model can adapt to a variety of Bridge Types, such as precast prestressed concrete small box girder, prefabricated
PCslab girder, cast-in-place box beam, cast-in-place concrete plate-girder, steel box-girder etc., while there is good landscape to imitate
Fruit.
The purpose of this utility model is achieved through the following technical solutions.
It is a kind of to lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake, it is made of device noumenon, described device
Ontology includes being set to the steel plate B of bent cap upper end and being set to the lower surface steel plate A, the steel plate B of end floor beam side to be provided with
The anchor bar A being fixedly connected with bent cap, upper surface are provided with steel plate C, and the side the steel plate A is provided with and the fixed company of end floor beam
The anchor bar B connect, the other side are provided with steel plate D, the steel plate D and steel plate C articulated connection, the axis of the steel plate D and steel plate C
Line is mutually perpendicular to.
The anchor bar A and steel plate B weld all around are welded, it is preferred that the anchor bar A is set as three.
The anchor bar B and steel plate A weld all around are welded, it is preferred that the anchor bar B is set as three.
The upper end the steel plate C is horizontally disposed oblong mounting hole, and the steel plate D is provided with circular mounting
Hole is connected by rod iron with nut, it is preferred that the steel plate C is set as two, the steel plate between the steel plate C and steel plate D
D is set as three, and each steel plate C is set between two neighboring steel plate D.
The steel plate C and steel plate B is welded to connect, and the steel plate D and steel plate A are welded to connect.
Compared with prior art, beneficial effect brought by the technical solution of the utility model is:
The utility model is mounted on abutment and connection pier position, pull rod connect beam body and pier stud (bent cap, abutment), work as generation
Necessary connection function is played when earthquake load, steel plate C and steel plate D can satisfy earthquake and normal use by being hinged and connected
Under, the longitudinal direction of bridge and angular distortion, while can be good at limiting the vertical displacement under bridge geological process, it prevents on bridge
Portion's structure under geological process upthrow and it is damaged so that Bridge Design meets related earthquake resistant code requirement.
Detailed description of the invention
Fig. 1 is the elevation that the present invention is suitable for limiting the device that multiple spot earthquake leads to bridge vertical displacement；
Fig. 2 is I-I sectional view in Fig. 1；
Fig. 3 is II-II sectional view in Fig. 1；
Fig. 4 is light plate C drawing of the present invention；
Fig. 5 is the part light plate D of the present invention master drawing；
Fig. 6 is III-III sectional view in Fig. 5；
Fig. 7 is schematic view of the mounting position of the present invention (by taking precast prestressed small box girder as an example).
Appended drawing reference: 1 bent cap；2 end floor beams；3 cushion blocks；4 anchor bar A；5 anchor bar B；
6 steel plate A；7 steel plate B；8 steel plate C；9 steel plate D；10 rod irons；11 nuts.
Specific embodiment
The utility model will be further described with reference to the accompanying drawing.
The present invention relates to it is a kind of limitation geological process under bridge vertical displacement antishock device, the present apparatus be mounted on abutment and
Pier position is connected, pull rod connects beam body and pier stud (bent cap, abutment), plays necessary connection function when earthquake load occurs,
Limit bridge superstructure and biggish vertical displacement occur, prevent bridge superstructure under geological process upthrow and it is damaged, mention
High bridge entirety shock resistance, focus on the application are more than or equal to the area of 0.2g in earthquake motion peak acceleration coefficient.
As shown in Figures 1 to 6, the utility model is suitable for limiting multiple spot earthquake and lead to the device of bridge vertical displacement, by
Device noumenon is constituted, and described device ontology includes the steel plate B7 for being set to 1 upper end of bent cap and the steel plate for being set to 2 side of end floor beam
The lower surface A6, the steel plate B7 is provided with the anchor bar A4 being fixedly connected with bent cap 1, and upper surface is vertically installed with steel plate C8,
The side the steel plate A6 is provided with the anchor bar B5 being fixedly connected with end floor beam 2, and the other side is vertically installed with steel plate D9, described
Steel plate D9 and steel plate C8 is articulated and connected, and the axis of the steel plate D9 and steel plate C8 is mutually perpendicular to.
Preferably, the anchor bar A4 and steel plate B7 weld all around are welded, and it is three that the anchor bar A4, which is arranged side by side,.Institute
It states anchor bar B5 and steel plate A6 weld all around is welded, it is three that the anchor bar B5, which is arranged side by side,.The steel plate C8 and steel plate B7
It is welded to connect, the steel plate D9 and steel plate A6 are welded to connect.The upper end the steel plate C8 is horizontally disposed oblong peace
Hole is filled, the steel plate D9 is provided with circular mounting hole, it is connected between the steel plate C8 and steel plate D9 by rod iron 10 and nut 11,
The steel plate C8 is set as two, and the steel plate D9 is set as three, and each steel plate C8 is set between two neighboring steel plate D9.
Cushion block 3, preferably C30 self-compacting concrete cushion block are provided between the steel plate B7 and bent cap 1, thickness is according to scene
High-volume determine.The anchor bar A4 and anchor bar B5 model are C20.
As shown in fig. 7, apparatus of the present invention are mounted on every bridge end by taking common precast prestressed concrete small box girder bridge as an example
Crossbeam (expansion joint where pier position) position, F is the present apparatus in figure, and when constructing end floor beam and bent cap, (built bridge can lead to
Bar planting mode is crossed to be installed), according to the associated components of the pre-buried apparatus of the present invention of attached drawing --- anchor bar A4 and anchor bar
B5, specific location and size can be adjusted according to the actual situation.Steel plate C8 and steel plate D9 should meet hinged requirement, limit
Vertical displacement, at the same discharge vertical bridge to and corner displacement.Corresponding pre-buried and connecting elements should meet seismic Calculation requirement and its
The requirement such as his related specifications deformation, intensity, anchorage length.
Although the utility model is described above in conjunction with attached drawing, the utility model is not limited to above-mentioned
Specific embodiment, the above mentioned embodiment is only schematical, rather than restrictive, the ordinary skill of this field
Personnel are under the enlightenment of the utility model, in the case where not departing from the utility model aims, according to different superstructure types
Formula and substructure (pier stud, bent cap, abutment) pattern, can refer to adjustment connection type, these belong to the guarantor of the utility model
Within shield.
Claims (5)
1. a kind of lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake, it is made of device noumenon, which is characterized in that
Described device ontology includes the steel plate B (7) for being set to bent cap (1) upper end and the steel plate A (6) for being set to end floor beam (2) side, institute
It states steel plate B (7) lower surface and is provided with the anchor bar A (4) being fixedly connected with bent cap (1), upper surface is provided with steel plate C (8), institute
It states steel plate A (6) side and is provided with the anchor bar B (5) being fixedly connected with end floor beam (2), the other side is provided with steel plate D (9), institute
It states steel plate D (9) and steel plate C (8) to be articulated and connected, the steel plate D (9) and the axis of steel plate C (8) are mutually perpendicular to.
2. according to claim 1 lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake, which is characterized in that
The anchor bar A (4) and steel plate B (7) weld all around are welded, and the anchor bar A (4) is set as three.
3. according to claim 1 lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake, which is characterized in that
The anchor bar B (5) and steel plate A (6) weld all around are welded, and the anchor bar B (5) is set as three.
4. according to claim 1 lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake, which is characterized in that
Steel plate C (8) upper end is horizontally disposed oblong mounting hole, and the steel plate D (9) is provided with circular mounting hole,
It being connected between the steel plate C (8) and steel plate D (9) by rod iron (10) and nut (11), the steel plate C (8) is set as two,
The steel plate D (9) is set as three, and each steel plate C (8) is set between two neighboring steel plate D (9).
5. according to claim 1 lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake, which is characterized in that
The steel plate C (8) and steel plate B (7) are welded to connect, and the steel plate D (9) and steel plate A (6) are welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275429.5U CN208309365U (en) | 2018-02-27 | 2018-02-27 | It is a kind of to lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275429.5U CN208309365U (en) | 2018-02-27 | 2018-02-27 | It is a kind of to lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake |
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| CN208309365U true CN208309365U (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820275429.5U Active CN208309365U (en) | 2018-02-27 | 2018-02-27 | It is a kind of to lead to the device of bridge vertical displacement suitable for limiting multiple spot earthquake |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663510A (en) * | 2021-01-12 | 2021-04-16 | 山西省交通科技研发有限公司 | Method for treating transverse stability of single-column pier bridge |
| CN113774804A (en) * | 2021-09-27 | 2021-12-10 | 黎建林 | Vertical pre-tensioning device for connecting upper structure and lower structure of bridge and construction method |
-
2018
- 2018-02-27 CN CN201820275429.5U patent/CN208309365U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112663510A (en) * | 2021-01-12 | 2021-04-16 | 山西省交通科技研发有限公司 | Method for treating transverse stability of single-column pier bridge |
| CN113774804A (en) * | 2021-09-27 | 2021-12-10 | 黎建林 | Vertical pre-tensioning device for connecting upper structure and lower structure of bridge and construction method |
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Address after: 300051 No. 239, Yingkou Road, Heping District, Tianjin Patentee after: Tianjin municipal engineering design and Research Institute Co.,Ltd. Address before: 300051 No. 239, Yingkou Road, Heping District, Tianjin Patentee before: TIANJIN MUNICIPAL ENGINEERING DESIGN & Research Institute |