CN105544383B - Movable-bridge support structure - Google Patents
Movable-bridge support structure Download PDFInfo
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- CN105544383B CN105544383B CN201610064674.7A CN201610064674A CN105544383B CN 105544383 B CN105544383 B CN 105544383B CN 201610064674 A CN201610064674 A CN 201610064674A CN 105544383 B CN105544383 B CN 105544383B
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- bearing
- plate
- web
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- support
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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
- E01D19/042—Mechanical bearings
- E01D19/043—Roller bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a movable-bridge support structure. By means of the movable-bridge support structure, the force condition of a support of a movable bridge is improved, the problem that anchor bolts of the support of the movable bridge are frequently fractured is solved, and it is accordingly avoided that the support is frequently replaced. The movable-bridge support structure comprises a main beam and a support fixedly arranged on a concrete base through anchor bolts, and one longitudinal end of the main beam is hinged to the support. The support comprises a main support body and edge support bodies located on the two sides. The main support body is hinged to a middle web plate of the main beam through a main-support pin shaft and a middle-web-plate joint radial bearing. The edge support bodies are hinged to edge web plates of the main beam through edge-support pin shafts, edge-web-plate joint radial bearings and oblong holes in edge support bodies, and elastic components acting on the hinged ends of the edge web plates are arranged on the edge support bodies. Shearing blocks are arranged on the outer sides of the anchor bolts.
Description
Technical field
The present invention relates to bridge, more particularly to a kind of movable bridge pedestal configurations.
Background technology
Qiongzhgou Strait train ferry engineering north and south port movable vehicle approach bridge for span 25.5m single-cantilever movable bridge, the bridge
For π font steel plate girder bridges.Trestle rear end arranges two bearings, each on the web of left and right to arrange one.Bearing crab-bolt is directly imbedded mixed
In solidifying soil matrix seat, girder steel and bearing are directly connected by bearing pin.Two hydraulic jacks are set from bearing 3.5m positions and lift dress
Put, left and right web is each one, play a part of to lift movable bridge.At ordinary times, trestle is in lifting status, after ferry boat approaches, puts down
Movable bridge, front end is placed on ferry duck, and then automobile is sailed in ferry boat by the bridge, and finally, ferry boat leaves harbour, movable bridge
Lift, return to initial lifting status.
Find that Guangdong seagoing vessel crosses movable vehicle approach bridge, and there are the following problems according to owner's file and reconnaissance trip：Bearing crab-bolt
Fracture is frequent, is worn and torn by different degrees of, and fracture shows obvious Fatigue Fracture Characteristic；Pin-and-hole on girder steel and bearing
Serious wear.Solve problem as above, it is necessary first to be analyzed the reason for this problem occur.Lifting state
When, trestle be in single-cantilever state, bearing crab-bolt under tension and shearing effect, wherein direct stress amplitude Δ σ=
53.8MPa, shear stress amplitude Δ τ=9.3MPa.And the limit value of Fatigue Stress Amplitude is 50MPa.It follows that only tension is just
The fatigue fracture of bolt can be caused.During working condition, trestle front end is placed on ferry duck, vertically and horizontally moved due to ferry boat and
The brake force of automobile will cause trestle bearing to receive moment of torsion and shear action, be transformed in crab-bolt to shear, and be computed, and shearing should
Force value reaches 120MPa or so, and due to the uncertainty of ferry moving direction, shear stress amplitude reaches 240MPa.It is so big
Fatigue Stress Amplitude be enough to make bolt fatigue fracture quickly.In the direct Transducers Embedded in Concrete pedestal of crab-bolt at bearing so that bolt is straight
Connect and bear shearing, exacerbate abrasion and the fatigue of crab-bolt.Girder steel and bearing are directly connected by bearing pin, are caused on girder steel and bearing
Pin shaft hole serious wear is obtained, becomes oval by circular abrasion.
Therefore, the fatigue problem of bearing crab-bolt is solved, it is necessary to the drawing that solves the problems, such as bearing, the stress cut, turn round.It is original design
Bearing and crab-bolt simultaneously by drawing, cutting, torsions is acted on, the only deadweight by replacing crab-bolt or mitigation trestle is difficult to solve
The comprehensive stress problem drawing, cut, turning round.
To sum up, conventional type of support is all unsatisfactory for the design requirement of this bridge, so exigence research is a kind of new
Movable bridge type of support.
The content of the invention
The technical problem to be solved is to provide a kind of movable bridge pedestal configurations, improves movable bridge Bearing Seat Force shape
Condition, solves to open the difficult problem that bridge seat crab-bolt frequently ruptures, so as to avoid frequent replacing time.
The technical solution adopted for the present invention to solve the technical problems is as follows：
The movable bridge pedestal configurations of the present invention, including girder and the bearing that is fixedly installed on by crab-bolt on concrete pad,
The longitudinal end of girder one is formed with bearing and is hinged, and be it is characterized in that：The bearing includes main bearing and the side bearing positioned at both sides；It is described
Main bearing is formed and is hinged with the median ventral plate of girder by main bearing bearing pin, median ventral plate joint radial bearing；The side bearing and master
Beam while web by while bearing bearing pin, while web joint radial bearing, while bearing on slotted hole formed be hinged, on the bearing of side
Setting acts on the elastic component of side web hinged end；The outside of the crab-bolt arranges shearing block.
The invention has the beneficial effects as follows, structure innovation, using three abutments pattern, successfully solves unlatching bridge seat crab-bolt
The design problem of fatigue；Reasonable stress, effectively improves movable bridge Bearing Seat Force situation；Thoroughly solve unlatching bridge seat crab-bolt
Frequently a difficult problem for fracture, can reduce the operation of frequent replacing time, greatly reduce the impact to ferry hauling operation.
Description of the drawings
This specification includes following 14 width accompanying drawing：
Fig. 1 is the plane graph of movable bridge pedestal configurations of the present invention；
Fig. 2 is the elevation of main bearing and girder steel connected mode in movable bridge pedestal configurations of the present invention；
Fig. 3 is the midfield plate structure schematic diagram of girder steel hinged end in movable bridge pedestal configurations of the present invention；
Fig. 4 is the side web structure schematic diagram of girder steel hinged end in movable bridge pedestal configurations of the present invention；
Fig. 5 is the front view of main bearing in movable bridge pedestal configurations of the present invention；
Fig. 6 is the top view of main bearing in movable bridge pedestal configurations of the present invention；
Fig. 7 is the front view of side bearing in movable bridge pedestal configurations of the present invention；
Fig. 8 is the top view of side bearing in movable bridge pedestal configurations of the present invention；
Fig. 9 is the structural representation that girder steel hinged end median ventral plate is connected with main bearing in movable bridge pedestal configurations of the present invention；
Figure 10 is that girder steel is hinged the structural representation that end edge web is connected with side bearing in movable bridge pedestal configurations of the present invention；
Figure 11 is the structural representation of main bearing floor in movable bridge pedestal configurations of the present invention；
Figure 12 is the structural representation of side bearing floor in movable bridge pedestal configurations of the present invention；
Figure 13 is the attachment structure schematic diagram of girder steel and side bearing in movable bridge pedestal configurations of the present invention；
Figure 14 is the partial enlarged drawing in Fig. 5 at labelling A, in Fig. 7 at labelling B.
Component and corresponding labelling are shown in figure：Girder 10, median ventral plate 11, median ventral plate bearing mounting hole 110, median ventral plate are closed
Section radial bearing 111, while web 12, while web bearing mounting hole 120, side web joint radial bearing 121；Main bearing 20, master
Bearing pre-embedded steel slab 201, main base-plate 202, main bearing floor 203, main bearing bearing pin 204, circular hole 205；While bearing 21, while
Bearing pre-embedded steel slab 211, while base-plate 212, while bearing floor 213, side bearing bearing pin 214, slotted hole 215；Crab-bolt 22；Cut
Power block 23；Concrete pad 30；Elastic component 31.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is further described.
With reference to Fig. 1, the movable bridge pedestal configurations of the present invention, including girder 10 and concrete pad 30 is arranged on by crab-bolt 22
On bearing, the longitudinal end of girder 10 1 and bearing form and be hinged, and the bearing includes main bearing 20 and the side bearing positioned at both sides
21.With reference to Fig. 2 and Fig. 3, Fig. 9, the main bearing 20 is closed with the median ventral plate 11 of girder 10 by main bearing bearing pin 204, median ventral plate
Section radial bearing 111 is formed and is hinged.It is described in bearing 21 and the while web 12 of girder 10 with reference to Fig. 4, Figure 10, Figure 12 and Figure 13
By while bearing bearing pin 214, while web joint radial bearing 120, side bearing 21 on slotted hole 215 formed and be hinged.Side bearing
The elastic component 31 for acting on the hinged end of side web 12 is set on 21.With reference to Fig. 4, Fig. 7 and Figure 14, the outside of the crab-bolt 22 sets
Put shearing block 23.
With reference to Fig. 1, three bearings are set in movable bridge end, centre for can up and down, the main bearing 20, Bian Shang of left-right rotation
Two for can up and down, left-right rotation, there is excessive mistake to prevent girder 10 in and the side bearing 21 vertically moved along bridge
It is dynamic, hydraulic jack is destroyed, slotted hole 215 is set on side bearing 21 used as longitudinal spacing structure.With reference to Fig. 8 and Figure 13, on side
Elastic component 31 is set on bearing 21, uneven moment of torsion is resisted with the restoring force of elastic component 31 automatically, moreover it is possible to play protecting against shock
Effect.With reference to Fig. 5, Fig. 7 and Figure 14, shearing block 23 is set in the outside of crab-bolt 22 and avoids bearing crab-bolt from directly bearing shearing lotus
Carry.
With reference to Fig. 5, Fig. 6, the main bearing 20 includes main bearing pre-embedded steel slab 201, main base-plate 202, and main bearing is pre-
Bury steel plate 201 to be embedded in advance in concrete pad 30, main base-plate 202 is by crab-bolt 22 and main bearing pre-embedded steel slab 201, concrete
Seat 30 is fixedly connected.Main base-plate 202 has a pair of upstanding and parallel main bearing floor 203, the main plate of bearing floor 203
The circular hole 205 passed through for main bearing bearing pin 204 is offered on face.With reference to Fig. 3 and Fig. 9, the hinged end of the median ventral plate 11 opens up
There is median ventral plate bearing mounting hole 110, median ventral plate joint radial bearing 111 is fixedly installed in the median ventral plate bearing mounting hole 11,
The main bearing bearing pin 204 of median ventral plate is fixedly installed on median ventral plate joint radial bearing 111.
With reference to Fig. 7 and Fig. 8, the bearing pre-embedded steel slab 211, side base-plate 212 when bearing 21 includes, side bearing is pre-
Bury steel plate 211 to be embedded in advance in concrete pad 30, while base-plate 212 by crab-bolt 22 with while bearing pre-embedded steel slab 211, concrete
Seat 30 is fixedly connected.While base-plate 212 have a pair of upstanding and it is parallel while bearing floor 213, the plate of side bearing floor 213
The slotted hole 215 passed through for side bearing bearing pin 214 is offered on face.With reference to Fig. 4 and Figure 10, the hinged end of the side web 12 is opened
It is provided with side web bearing mounting hole 120, web bearing mounting hole 120 when radial bearing 121 is fixedly installed on this in web joint
It is interior, when bearing bearing pin 214 is fixedly installed on web joint radial bearing 121.Reference 7 and Figure 14, the elastic component 31
To be fixedly mounted on compression spring on side base-plate 212, the front end of the compression spring is made in the outer of the hinged end of side web 12
On annular sidewall.
Some principles of the above movable bridge pedestal configurations of the present invention that simply explain through diagrams, are not intended to the present invention
Shown in being confined to and in described concrete structure and the scope of application, therefore every corresponding modification for being possible to be utilized and equivalent
Thing, belongs to apllied the scope of the claims of the invention.
Claims (6)
1. movable bridge pedestal configurations, including girder (10) and by crab-bolt (22) be fixedly installed on concrete pad (30)
Seat, the longitudinal end of girder (10) is formed with bearing and is hinged, and be it is characterized in that：The bearing includes main bearing (20) and positioned at both sides
Side bearing (21)；The median ventral plate (11) of the main bearing (20) and girder (10) is by main bearing bearing pin (204), median ventral plate joint
Radial bearing (111) is formed and is hinged；It is described while bearing (21) and girder (10) while web (12) by side bearing bearing pin
(214), while web joint radial bearing (121), while bearing (21) on slotted hole (215) formed and be hinged, on side bearing (21)
The elastic component (31) for acting on side web (12) hinged end is fixedly installed；The outside of the crab-bolt (22) arranges shearing block
(23)。
2. movable bridge pedestal configurations as claimed in claim 1, is characterized in that：The main bearing (20) is including main bearing pre-buried steel
Plate (201), main base-plate (202), main bearing pre-embedded steel slab (201) is embedded in advance in concrete pad (30), main base-plate
(202) it is fixedly connected with main bearing pre-embedded steel slab (201), concrete pad (30) by crab-bolt (22)；Main base-plate (202) tool
There are a pair of upstanding and parallel main bearing floor (203), offer for main bearing bearing pin in main bearing floor (203) plate face
(204) circular hole (205) for passing through.
3. movable bridge pedestal configurations as claimed in claim 2, is characterized in that：During the hinged end of the median ventral plate (11) offers
Web bearing mounting hole (110), median ventral plate joint radial bearing (111) is fixedly installed on the median ventral plate bearing mounting hole (110)
Interior, main bearing bearing pin (204) is fixedly installed on median ventral plate joint radial bearing (111).
4. movable bridge pedestal configurations as claimed in claim 1, is characterized in that：It is described while bearing (21) including while bearing pre-buried steel
Plate (211), side base-plate (212), side bearing pre-embedded steel slab (211) is embedded in advance in concrete pad (30), side base-plate
(212) it is fixedly connected with side bearing pre-embedded steel slab (211), concrete pad (30) by crab-bolt (22)；Side base-plate (212) has
There are a pair of upstanding and parallel side bearing floor (213), in bearing floor (213) plate face of side slotted hole (215), side are offered
Bearing bearing pin (214) is through the circular hole on the slotted hole (215) and side web (12).
5. movable bridge pedestal configurations as claimed in claim 4, is characterized in that：When the hinged end in web (12) offers
Web bearing mounting hole (120), web bearing mounting hole (120) when web joint radial bearing (121) is fixedly installed on this
It is interior, when bearing bearing pin (214) is fixedly installed on web joint radial bearing (121).
6. movable bridge pedestal configurations as claimed in claim 4, is characterized in that：The elastic component (31) is to be fixedly mounted on side
Make on the outer annular sidewall of side web (12) hinged end compression spring on base-plate (212), the front end of the compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064674.7A CN105544383B (en) | 2016-01-29 | 2016-01-29 | Movable-bridge support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064674.7A CN105544383B (en) | 2016-01-29 | 2016-01-29 | Movable-bridge support structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105544383A CN105544383A (en) | 2016-05-04 |
| CN105544383B true CN105544383B (en) | 2017-04-12 |
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ID=55823915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610064674.7A Active CN105544383B (en) | 2016-01-29 | 2016-01-29 | Movable-bridge support structure |
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| Country | Link |
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| CN (1) | CN105544383B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1604498A (en) * | 1921-12-10 | 1926-10-26 | Joseph B Strauss | Rotating connection for bascule bridges |
| GB1575495A (en) * | 1977-03-16 | 1980-09-24 | Smedvig P | Connecting bridge for personnel to connect two mutually movalbe marine structures |
| CN202509395U (en) * | 2011-12-01 | 2012-10-31 | 天津工程机械研究院 | Supporting device for vertical rotation open bridge |
| CN103031805A (en) * | 2013-01-07 | 2013-04-10 | 天津市市政工程设计研究院 | Single-cantilever supporting system for vertically-rotary movable bridge and installing method thereof |
| CN204703053U (en) * | 2015-06-11 | 2015-10-14 | 长江勘测规划设计研究有限责任公司 | With the vertical rotary type movable bridge of hydraulic hoist |
| CN205529866U (en) * | 2016-01-29 | 2016-08-31 | 中铁二院工程集团有限责任公司 | Movable bridge support structure |
-
2016
- 2016-01-29 CN CN201610064674.7A patent/CN105544383B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1604498A (en) * | 1921-12-10 | 1926-10-26 | Joseph B Strauss | Rotating connection for bascule bridges |
| GB1575495A (en) * | 1977-03-16 | 1980-09-24 | Smedvig P | Connecting bridge for personnel to connect two mutually movalbe marine structures |
| CN202509395U (en) * | 2011-12-01 | 2012-10-31 | 天津工程机械研究院 | Supporting device for vertical rotation open bridge |
| CN103031805A (en) * | 2013-01-07 | 2013-04-10 | 天津市市政工程设计研究院 | Single-cantilever supporting system for vertically-rotary movable bridge and installing method thereof |
| CN204703053U (en) * | 2015-06-11 | 2015-10-14 | 长江勘测规划设计研究有限责任公司 | With the vertical rotary type movable bridge of hydraulic hoist |
| CN205529866U (en) * | 2016-01-29 | 2016-08-31 | 中铁二院工程集团有限责任公司 | Movable bridge support structure |
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| Publication number | Publication date |
|---|---|
| CN105544383A (en) | 2016-05-04 |
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