CN108729341A - A kind of limiting device having height difference bridge - Google Patents
A kind of limiting device having height difference bridge Download PDFInfo
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- CN108729341A CN108729341A CN201811030260.8A CN201811030260A CN108729341A CN 108729341 A CN108729341 A CN 108729341A CN 201811030260 A CN201811030260 A CN 201811030260A CN 108729341 A CN108729341 A CN 108729341A
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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
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- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to technical field of building construction, more particularly to a kind of limiting device having height difference bridge.Including bridge floor, bridge pier, cross spacing device and longitudinal spacing device are set between bridge floor and bridge pier；The longitudinal spacing device includes spring fixed column, energy dissipation spring, sliding ball, connecting rod, limited block, the cross spacing device includes hollow steel ball, limit sliding rail, L-shaped steel plate, high-strength bolt, holdfast, in the width direction of bridge, two longitudinal spacing devices are respectively set in the down either side of bridge floor, and a cross spacing device is arranged in two the intermediate of longitudinal spacing device.Present invention installation is simple, easy for construction, greatly reduces shear wave and transmits energy and hard breakdown between bridge and bridge pier, multiple structures is caused to limit simultaneously, prevents bridge falling-off effect more efficient.
Description
Technical field
The invention belongs to technical field of building construction, more particularly to a kind of limiting device having height difference bridge.
Background technology
Earthquake disaster in world wide for many years shows the development with urbanization, and transportation network is in entire city antidetonation
It takes precautions against natural calamities more and more important in life line system.Tangshan Earthquake in 1976, U.S. Bei Ling (Northrige) earthquake, 1995 in 1994
Year Japanese Osaka-Kobe earthquake, U.S. Sheng Feinanduo (San i^ernado) earthquakes in 1997 and TaiWan, China Chi-Chi Earthquake in 1999 are equal
Serious destruction is caused to local transportation network, leads to the massive losses of lives and properties, and its Bridge vertically and horizontally falls beam and is
Earthquake form the most outstanding.
Currently, Bridges in Our Country Aseismic Design is mainly to emphasize the intensity of pier body, pier body how to be made not fallen in earthquake
It collapses.Mainly on pier body beam falling prevention stopping block is fixedly installed in used anti-fall beam construction, by the length travel amount of beam body and
Lateral displacement amount controls in a certain range.But contacted due to lacking between beam body and pier body, beam body and beam body, when strong
Higher earthquake is spent come when attacking, the impact acutely shaken by beam body, beam falling prevention stopping block easily occurs failure by shear and fails, and generation is fallen
Beam destroys.In Wenchuan earthquake, earthquake region majority bridge all receives destruction, and such as " all sorts of flowers bridge " this pier body is substantially complete
Well, cause the example of bridge collapse too numerous to enumerate due to falling beam, it has also become the principal element that earthquake Bridge destroys causes bridge
The common concern of Liang Jie.With the rapid development of China's transport development cause, bridge as the multi-purpose project in traffic lines, no matter
Quantitatively still on development length all in rapid growth.And China is an earthquake-prone countries, bridge is once in earthquake
Falling beam destruction will make entire transportation network paralyse, serious to hinder rescue and rebuilding in disaster-hit areas, therefore exist in recent years
Bridge three-dimensional limits damping device and is applied in Bridge Seismic design.
Existing bridge three-dimensional limit vibration reduction structure mainly has following three kinds of forms, i.e. chain vertical limit device cooperation vertical
Vertically and horizontally beam falling prevention stopping block, prestressed strand vertical spacing fill for lateral beam falling prevention stopping block, the cooperation of anchoring rod iron vertical limit device
Setting cooperation, vertically and horizontally girder falling fills.Three kinds of forms are that longitudinal beam falling prevention stopping block and lateral girder falling are fixedly installed in beam body
Block is matched with the bearing pad stone on pier body top to constrain beam body length travel, lateral displacement, longitudinal beam falling prevention stopping block and branch
The gap of seat cushion stone meets the normal length travel amount of beam body.But in practice, there are still some problems, especially faces have height
The road and bridge of difference, the limiting device of bridge are not fully up to expectations.
Therefore, during bridge limits, avoid more destroying, avoid bridge generate fall off be bridge construction weight in it
Weight.
Invention content
In order to solve above-mentioned technical problem, the present invention provides a kind of limiting devices having height difference bridge.Earthquake
It arrives, longitudinal wave transfers energy to bridge pier, and then energy transmission arrives spring fixed column, and then energy passes to energy dissipation spring, energy consumption
Spring deformation consumes energy, and for shear wave by between energy transmission bridge and bridge pier, bridge generates relative displacement with bridge pier, and steel ball is limiting
Position sliding rail generates displacement and consumes certain energy, and sliding ball generates displacement, consumes certain energy, limited block limit slippage ball
Generation is significantly moved, and prevents bridge from falling off.
The technical solution adopted by the present invention is as follows：
A kind of limiting device having height difference bridge is arranged between bridge floor and bridge pier, and laterally limit is arranged between bridge floor and bridge pier
Position device and longitudinal spacing device；The longitudinal spacing device includes spring fixed column, energy dissipation spring, sliding ball, connecting rod, limit
Block, spring fixed column include first row spring fixed column, second row spring fixed column, third row spring fixed column, the 4th row's bullet
Spring fixed column, energy dissipation spring include first row energy dissipation spring, second row energy dissipation spring, and limited block includes first row limited block,
Two row's limited blocks, the cross spacing device include hollow steel ball, limit sliding rail, L-shaped steel plate, high-strength bolt, holdfast；
In the width direction of bridge, two longitudinal spacings are respectively arranged below at bridge floor left and right sides edge 20-30cm
A cross spacing device is arranged in device, two the intermediate of longitudinal spacing device；In the length direction of bridge, several cross spacings are set
Device and longitudinal spacing device；
The longitudinal spacing device is followed successively by from top to bottom：First row spring fixed column, first row energy dissipation spring, second row spring are solid
Fixed column, first row limited block, second row limited block, third row spring fixed column, second row energy dissipation spring, the 4th row's spring are fixed
Column；It is provided with sliding ball and connecting rod between the first row limited block and second row limited block, sliding ball is connect with connecting rod
Square skeleton is formed, the sliding ball of square skeleton upper surface is close to second row spring fixed column bottom surface, square skeleton
The sliding ball of lower surface is close to third row's spring fixed column top surface；
The hollow steel ball of the cross spacing device is fixedly connected by high-strength bolt with the lower surface of bridge floor, with hollow steel ball position
Two limit sliding rails are symmetrical arranged on corresponding bridge pier, limit sliding rail bottom surface is close to top surface on bridge pier, and limit is slided
Dynamic rail top face limits the outside setting L-shaped steel plate of sliding rail apart from bridge floor bottom surface 3-5cm, and L-shaped steel plate is distinguished by holdfast
It is connect with bridge pier, limit sliding rail.
Further, at the left and right edges 3-5cm of second row spring fixed column bottom surface and second row spring fixed column
First row limited block is respectively set at bottom center, first row limited block forms the equal space of two spacing distances；Vertical
Second row limited block, second row limited block and third row's spring fixed column top is arranged in direction at first row limited block 5-8cm
Face is close to, and second row limited block forms the equal space of two spacing distances, and the space and second that first row limited block is formed
It is symmetrical above and below to arrange the space that limited block is formed；Sliding ball connect the square skeleton to be formed with connecting rod and is limited by first row
In the space that block, second row limited block are formed；First row spring fixed column, second row spring fixed column, third row's spring are fixed
Column, the 4th row's spring fixed column height be 3-5cm, wall thickness is 1-2mm, and diameter is 25-30cm.
Further, the first row energy dissipation spring, second row energy dissipation spring buffer distance be 100-200mm.
Further, bearing is equipped in the sliding ball, the bearing in sliding ball is inserted into the end of connecting rod；Sliding ball
A diameter of 3-5cm, material are nickel alloy.
Further, the connection pole length is 5-8cm, a diameter of 1.5-2cm of connecting rod.
Further, the first row limited block and second row limited block are rubber material.
Further, a diameter of 12-15cm of the hollow steel ball.
Further, the limit sliding rail is arranged at the left and right sides 3-5cm apart from hollow steel ball ball body, limit
Position sliding rail is prismatoid, is highly 25-30cm, and top margin length is 10-15cm, and bottom edge length is 25-30cm, lateral width
For 10-12cm, the lenth ratio for limiting sliding rail bottom edge and top margin is 2-2.5.
Further, the thickness of the L-shaped steel plate is 3-4mm.
Further, the bottom surface of the vertical bridge floor of the high-strength bolt, high-strength bolt pass through connecting seat, the bridge of hollow steel ball
10-15cm in bridge floor is simultaneously inserted into the bottom surface in face.
Beneficial effects of the present invention are：It is provided by the invention it is a kind of have the limiting device of height difference bridge both consumed longitudinal wave biography
The energy passed, and the energy of shear wave transmission is consumed, installation is simple, easy for construction, greatly reduces shear wave transmission energy and makes
At the hard breakdown between bridge and bridge pier, multiple structures limit simultaneously, prevent bridge falling-off effect more efficient.
Description of the drawings
Fig. 1 is a kind of bridge width direction sectional view for the limiting device for having a height difference bridge of the present invention.
Fig. 2 is a kind of bridge length direction sectional view for the limiting device for having a height difference bridge of the present invention.
Fig. 3 is Section A-A figure in Fig. 1.
Fig. 4 is section B-B figure in Fig. 1.
Fig. 5 is sliding ball and connecting rod connection diagram.
In figure, 1 is bridge floor；2 be bridge pier；3 be spring fixed column；3-1 is first row spring fixed column；3-2 is second row
Spring fixed column；3-3 is that third arranges spring fixed column；3-4 is the 4th row's spring fixed column；4 be energy dissipation spring；4-1 is first
Arrange energy dissipation spring；4-2 is second row energy dissipation spring；5 be sliding ball；6 be connecting rod；7 be limited block；7-1 limits for first row
Block；7-2 is second row limited block；8 be hollow steel ball；9 be limit sliding rail；10 be L-shaped steel plate；11 be high-strength bolt；12
For holdfast.
Specific implementation mode
In order to further illustrate the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments, but not
They can be interpreted as limiting the scope of the present invention.
Embodiment 1
As shown in Figs. 1-5, a kind of limiting device having height difference bridge, including bridge floor 1, bridge pier 2, spring fixed column 3, energy dissipation spring
4, sliding ball 5, connecting rod 6, limited block 7, steel ball 8, limit sliding rail 9, L-shaped steel plate 10, high-strength bolt 11, holdfast 12, position
In bridge width direction, first row spring fixed column 3-1 is respectively set at 1 both sides of the edge 20cm of bridge floor in left and right, and spring is solid
The height of fixed column 3 is 3cm, and the first row top surfaces spring fixed column 3-1 are close to connect with 1 bottom surface of bridge floor, first row spring fixed column
The top surfaces first row energy dissipation spring 4-1 are fixed in the bottom surfaces 3-1, and first row energy dissipation spring 4-1 is fixed in the top surfaces second row spring fixed column 3-2
Bottom surface, at second row spring fixed column 3-2 bottom surface left and right edges 3cm and second row spring fixed column 3-2 bottom center
First row limited block 7-1 is respectively set in place, and three first row limited block 7-1 form two spacing distance equal spaces, vertical
Direction is arranged second row limited block 7-2, second row limited block 7-2 with first row limited block 7-1 at 5cm and arranges bullet with third
Spring fixed column 3-3 is close to top surface, and second row limited block 7-2 forms two spacing distance equal spaces, and first row limited block 7-1
The space of formation and the space that second row limited block 7-2 is formed are symmetrical above and below, and sliding ball 5 is connect with connecting rod 6, form square
Skeleton, two square skeletons are respectively in the space formed by first row limited block 7-1, second row limited block 7-2, square
The sliding ball 5 of skeleton upper surface is close to the bottom surfaces second row spring fixed column 3-2, the sliding ball 5 of square skeleton lower surface with
Third row spring fixed column 3-3 is close to top surface, and third arranges the bottom surfaces spring fixed column 3-3 and fixes the top surfaces second row energy dissipation spring 4-2,
The second row bottom surfaces energy dissipation spring 4-2 are fixed with the 4th top surfaces row spring fixed column 3-4, the 4th row bottom surfaces spring fixed column 3-4 with
Bridge pier 2 connects, and at bridge width center, the connecting seat of hollow steel ball 8 is close to 1 bottom surface of bridge floor, 11 vertical bridge of high-strength bolt
10cm in bridge floor 1 across the connecting seat of hollow steel ball 8,1 bottom surface of bridge floor and is inserted into 1 bottom surface of face, ball body and the sky of hollow steel ball 8
The connecting seat of heart steel ball 8 connects, the top surface 3cm on bridge pier 2, is respectively set at ball body 3cm of the left and right apart from hollow steel ball 8
Two symmetrical limit sliding rails 9, limit 9 bottom surface of sliding rail are close to top surface on bridge pier 2, limit 9 top surface of sliding rail away from
From 1 bottom surface 3cm of bridge floor, L-shaped steel plate 10 is abutted with bridge pier 2,9 side of limit sliding rail respectively, and holdfast 12 is respectively by L-shaped steel plate
10 connect with bridge pier 2, L-shaped steel plate 10 with limit sliding rail 9.Bearing is equipped in sliding ball 5, the end of connecting rod 6, which is inserted into, to be slided
Bearing in dynamic ball 5, connecting rod 6 can the rotations in sliding ball 5.
When earthquake arrives, longitudinal wave transfers energy to bridge pier 2, and then energy transmission arrives spring fixed column 3, then energy biography
To energy dissipation spring 4,4 deformation of energy dissipation spring consumes energy, and by between energy transmission bridge and bridge pier 2, bridge produces shear wave with bridge pier 2
Raw relative displacement, hollow steel ball 8 are moved closer to limit sliding rail 9,9 bottom surface of the contact limit sliding rail of hollow steel ball 8, and
It is slided on limit sliding rail 9, while sliding ball 5 generates displacement, consumes certain energy, 7 limit slippage ball 5 of limited block generates
It significantly moves, prevents bridge from falling off.
Embodiment 2
As shown in Figs. 1-5, a kind of limiting device having height difference bridge, including bridge floor 1, bridge pier 2, spring fixed column 3, energy dissipation spring
4, sliding ball 5, connecting rod 6, limited block 7, hollow steel ball 8, limit sliding rail 9, L-shaped steel plate 10, high-strength bolt 11, holdfast
12, it is located at bridge width direction, first row spring fixed column 3-1, bullet is respectively set apart from 1 both sides of the edge 30cm of bridge floor in left and right
3 height 5cm of spring fixed column, the first row top surfaces spring fixed column 3-1 are close to connect with 1 bottom surface of bridge floor, first row spring fixed column
The top surfaces first row energy dissipation spring 4-1 are fixed in the bottom surfaces 3-1, and first row energy dissipation spring 4-1 is fixed in the top surfaces second row spring fixed column 3-2
Bottom surface, at second row spring fixed column 3-2 bottom surface left and right edges 5cm and second row spring fixed column 3-2 bottom center
First row limited block 7-1 is respectively set in place, and three first row limited block 7-1 form two spacing distance equal spaces, vertical
Direction is arranged second row limited block 7-2, second row limited block 7-2 with first row limited block 7-1 at 8cm and arranges bullet with third
Spring fixed column 3-3 is close to top surface, and second row limited block 7-2 forms two spacing distance equal spaces, and first row limited block 7-1
The space of formation and the space that second row limited block 7-2 is formed are symmetrical above and below, and sliding ball 5 is connect with connecting rod 6, form square
Skeleton, two square skeletons are respectively in the space formed by first row limited block 7-1, second row limited block 7-2, square
The sliding ball 5 of skeleton upper surface is close to the bottom surfaces second row spring fixed column 3-2, the sliding ball 5 of square skeleton lower surface with
Third row spring fixed column 3-3 is close to top surface, and third arranges the bottom surfaces spring fixed column 3-3 and fixes the top surfaces second row energy dissipation spring 4-2,
The second row bottom surfaces energy dissipation spring 4-2 are fixed with the 4th top surfaces row spring fixed column 3-4, the 4th row bottom surfaces spring fixed column 3-4 with
Bridge pier 2 connects, and at bridge width center, the connecting seat of hollow steel ball 8 is close to 1 bottom surface of bridge floor, 11 vertical bridge of high-strength bolt
15cm in bridge floor 1 across the connecting seat of hollow steel ball 8,1 bottom surface of bridge floor and is inserted into 1 bottom surface of face, ball body and the sky of hollow steel ball 8
The connecting seat of heart steel ball 8 connects, the top surface 5cm on bridge pier 2, is respectively set at ball body 5cm of the left and right apart from hollow steel ball 8
Two symmetrical limit sliding rails 9, limit 9 bottom surface of sliding rail are close to top surface on bridge pier 2, limit 9 top surface of sliding rail away from
From 1 bottom surface 5cm of bridge floor, L-shaped steel plate 10 is abutted with bridge pier 2,9 side of limit sliding rail respectively, and holdfast 12 is respectively by L-shaped steel plate
10 connect with bridge pier 2, L-shaped steel plate 10 with limit sliding rail 9.
Embodiment 3
As shown in Figs. 1-5, a kind of limiting device having height difference bridge, including bridge floor 1, bridge pier 2, spring fixed column 3, energy dissipation spring
4, sliding ball 5, connecting rod 6, limited block 7, hollow steel ball 8, limit sliding rail 9, L-shaped steel plate 10, high-strength bolt 11, holdfast
12, it is located at bridge width direction, first row spring fixed column 3-1, bullet is respectively set apart from 1 both sides of the edge 25cm of bridge floor in left and right
3 height 4cm of spring fixed column, the first row top surfaces spring fixed column 3-1 are close to connect with 1 bottom surface of bridge floor, first row spring fixed column
The top surfaces first row energy dissipation spring 4-1 are fixed in the bottom surfaces 3-1, and first row energy dissipation spring 4-1 is fixed in the top surfaces second row spring fixed column 3-2
Bottom surface, at second row spring fixed column 3-2 bottom surface left and right edges 4cm and second row spring fixed column 3-2 bottom center
First row limited block 7-1 is respectively set in place, and three first row limited block 7-1 form two spacing distance equal spaces, vertical
Direction is arranged second row limited block 7-2, second row limited block 7-2 with first row limited block 7-1 at 7cm and arranges bullet with third
Spring fixed column 3-3 is close to top surface, and second row limited block 7-2 forms two spacing distance equal spaces, and first row limited block 7-1
The space of formation and the space that second row limited block 7-2 is formed are symmetrical above and below, and sliding ball 5 is connect with connecting rod 6, form square
Skeleton, two square skeletons are respectively in the space formed by first row limited block 7-1, second row limited block 7-2, square
The sliding ball 5 of skeleton upper surface is close to the bottom surfaces second row spring fixed column 3-2, the sliding ball 5 of square skeleton lower surface with
Third row spring fixed column 3-3 is close to top surface, and third arranges the bottom surfaces spring fixed column 3-3 and fixes the top surfaces second row energy dissipation spring 4-2,
The second row bottom surfaces energy dissipation spring 4-2 are fixed with the 4th top surfaces row spring fixed column 3-4, the 4th row bottom surfaces spring fixed column 3-4 with
Bridge pier 2 connects, and at bridge width center, the connecting seat of hollow steel ball 8 is close to 1 bottom surface of bridge floor, 11 vertical bridge of high-strength bolt
12cm in bridge floor 1 across the connecting seat of hollow steel ball 8,1 bottom surface of bridge floor and is inserted into 1 bottom surface of face, ball body and the sky of hollow steel ball 8
The connecting seat of heart steel ball 8 connects, the top surface 4cm on bridge pier 2, is respectively set at ball body 4cm of the left and right apart from hollow steel ball 8
Two symmetrical limit sliding rails 9, limit 9 bottom surface of sliding rail are close to top surface on bridge pier 2, limit 9 top surface of sliding rail away from
From 1 bottom surface 4cm of bridge floor, L-shaped steel plate 10 is abutted with bridge pier 2,9 side of limit sliding rail respectively, and holdfast 12 is respectively by L-shaped steel plate
10 connect with bridge pier 2, L-shaped steel plate 10 with limit sliding rail 9.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of limiting device having height difference bridge is arranged in bridge floor（1）And bridge pier（2）Between, it is characterised in that：In bridge floor
（1）With bridge pier（2）Between setting cross spacing device and longitudinal spacing device；The longitudinal spacing device includes spring fixed column（3）,
Energy dissipation spring（4）, sliding ball（5）, connecting rod（6）, limited block（7）, spring fixed column（3）Including first row spring fixed column
（3-1）, second row spring fixed column（3-2）, third arrange spring fixed column（3-3）, the 4th row's spring fixed column（3-4）, energy consumption
Spring（4）Including first row energy dissipation spring（4-1）, second row energy dissipation spring（4-2）, limited block（7）Including first row limited block
（7-1）, second row limited block（7-2）, the cross spacing device includes hollow steel ball（8）, limit sliding rail（9）, L-shaped steel
Plate（10）, high-strength bolt（11）, holdfast（12）；
In the width direction of bridge, apart from bridge floor（1）It is respectively arranged below two longitudinal limits at left and right sides edge 20-30cm
A cross spacing device is arranged in position device, two the intermediate of longitudinal spacing device；In the length direction of bridge, several are set and is laterally limited
Position device and longitudinal spacing device；
The longitudinal spacing device is followed successively by from top to bottom：First row spring fixed column（3-1）, first row energy dissipation spring（4-1）,
Two row's spring fixed columns（3-2）, first row limited block（7-1）, second row limited block（7-2）, third arrange spring fixed column（3-
3）, second row energy dissipation spring（4-2）, the 4th row's spring fixed column（3-4）；The first row limited block（7-1）It is limited with second row
Position block（7-2）Between be provided with sliding ball（5）And connecting rod（6）, sliding ball（5）With connecting rod（6）Connection forms square bone
Frame, the sliding ball of square skeleton upper surface（5）With second row spring fixed column（3-2）Bottom surface is close to, square skeleton following table
The sliding ball in face（5）Spring fixed column is arranged with third（3-3）It is close to top surface；
The hollow steel ball of the cross spacing device（8）Pass through high-strength bolt（11）With bridge floor（1）Lower surface be fixedly connected, with sky
Heart steel ball（8）The corresponding bridge pier in position（2）It is upper to be symmetrical arranged two limit sliding rails（9）, limit sliding rail（9）Bottom surface with
Bridge pier（2）Upper top surface is close to, and sliding rail is limited（9）Top surface is apart from bridge floor（1）Bottom surface 3-5cm limits sliding rail（9）It is outer
L-shaped steel plate is arranged in side（10）, L-shaped steel plate（10）Pass through holdfast（12）Respectively with bridge pier（2）, limit sliding rail（9）Connection.
2. a kind of limiting device having height difference bridge according to claim 1, it is characterised in that：Apart from second row spring
Fixed column（3-2）At the left and right edges 3-5cm of bottom surface and second row spring fixed column（3-2）First row is respectively set at bottom center
Limited block（7-1）, first row limited block（7-1）Form the equal space of two spacing distances；In vertical direction, apart from first row
Limited block（7-1）Second row limited block is set at 5-8cm（7-2）, second row limited block（7-2）Spring fixed column is arranged with third
（3-3）Top surface is close to, second row limited block（7-2）Form the equal space of two spacing distances, and first row limited block（7-1）
The space of formation and second row limited block（7-2）The space of formation is symmetrical above and below；Sliding ball（5）With connecting rod（6）Connection is formed
Square skeleton by first row limited block（7-1）, second row limited block（7-2）In the space of formation；First row spring is solid
Fixed column（3-1）, second row spring fixed column（3-2）, third arrange spring fixed column（3-3）, the 4th row's spring fixed column（3-4）'s
Height is 3-5cm, and wall thickness is 1-2mm, and diameter is 25-30cm.
3. a kind of limiting device having height difference bridge according to claim 1, it is characterised in that：The first row energy consumption
Spring（4-1）, second row energy dissipation spring（4-2）Buffer distance be 100-200mm.
4. a kind of limiting device having height difference bridge according to claim 1, it is characterised in that：The sliding ball（5）
It is interior to be equipped with bearing, connecting rod（6）End be inserted into sliding ball（5）Interior bearing；Sliding ball（5）A diameter of 3-5cm, material are nickel
Alloy.
5. a kind of limiting device having height difference bridge according to claim 1, it is characterised in that：The connecting rod（6）
Length is 5-8cm, connecting rod（6）A diameter of 1.5-2cm.
6. a kind of limiting device having height difference bridge according to claim 1, it is characterised in that：The first row limit
Block（7-1）With second row limited block（7-2）It is rubber material.
7. a kind of limiting device having height difference bridge according to claim 1, it is characterised in that：The hollow steel ball
（8）A diameter of 12-15cm.
8. a kind of limiting device having height difference bridge according to claim 1, it is characterised in that：Rail is slided in the limit
Road（9）It is arranged apart from hollow steel ball（8）At the left and right sides 3-5cm of ball body, sliding rail is limited（9）For prismatoid, height
For 25-30cm, top margin length is 10-15cm, and bottom edge length is 25-30cm, lateral width 10-12cm, limits sliding rail
（9）The lenth ratio of bottom edge and top margin is 2-2.5.
9. a kind of limiting device having height difference bridge according to claim 1, it is characterised in that：The L-shaped steel plate
（10）Thickness be 3-4mm.
10. a kind of limiting device having height difference bridge according to claim 1, it is characterised in that：The high-strength bolt
（11）Vertical bridge floor（1）Bottom surface, high-strength bolt（11）Across hollow steel ball（8）Connecting seat, bridge floor（1）Bottom surface and insertion
Bridge floor（1）Interior 10-15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030260.8A CN108729341A (en) | 2018-09-05 | 2018-09-05 | A kind of limiting device having height difference bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030260.8A CN108729341A (en) | 2018-09-05 | 2018-09-05 | A kind of limiting device having height difference bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108729341A true CN108729341A (en) | 2018-11-02 |
Family
ID=63941720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811030260.8A Withdrawn CN108729341A (en) | 2018-09-05 | 2018-09-05 | A kind of limiting device having height difference bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108729341A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371826A (en) * | 2018-11-26 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of slideway type damper set up for bridge spanning the sea Simply-supported Steel Beams |
| CN113106844A (en) * | 2021-04-14 | 2021-07-13 | 河北中通铁路配件有限公司 | Adjustable spacing clearance's locking type prevents roof beam dog that falls |
-
2018
- 2018-09-05 CN CN201811030260.8A patent/CN108729341A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109371826A (en) * | 2018-11-26 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of slideway type damper set up for bridge spanning the sea Simply-supported Steel Beams |
| CN109371826B (en) * | 2018-11-26 | 2020-09-29 | 中铁大桥科学研究院有限公司 | Slide way type shock absorber for erecting simply-supported steel beam of sea-crossing bridge |
| CN113106844A (en) * | 2021-04-14 | 2021-07-13 | 河北中通铁路配件有限公司 | Adjustable spacing clearance's locking type prevents roof beam dog that falls |
| CN113106844B (en) * | 2021-04-14 | 2022-08-02 | 河北中通铁路配件有限公司 | Adjustable spacing clearance's locking type prevents roof beam dog that falls |
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