CN205529866U - Movable bridge support structure - Google Patents
Movable bridge support structure Download PDFInfo
- Publication number
- CN205529866U CN205529866U CN201620095859.XU CN201620095859U CN205529866U CN 205529866 U CN205529866 U CN 205529866U CN 201620095859 U CN201620095859 U CN 201620095859U CN 205529866 U CN205529866 U CN 205529866U
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- bearing
- limit
- web
- plate
- movable bridge
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Abstract
Movable bridge support structure improves movable bridge support atress situation, solves the frequent cracked difficult problem of movable bridge support crab -bolt to avoid frequently changing the support. Fix the support that sets up on the concrete seat including the girder with through the crab -bolt, a girder vertical end forms articulatedly with the support. The support includes main tributary seat and the limit support that is located both sides. The main tributary seat passes through main tributary seat pin axle with the well web of girder, well web joint radial bearing forms articulatedly. The slotted hole formation that the limit web of limit support and girder passes through on a limit seat pin axle, limit web joint radial bearing, the limit support is articulated, sets up the elastic component who acts on limit web hinged end on the support of limit. The outside of crab -bolt sets up the shear force piece.
Description
Technical field
The utility model relates to bridge, particularly to a kind of movable bridge pedestal configurations.
Background technology
Port, Qiongzhgou Strait train ferry engineering north and south movable vehicle approach bridge is the single-cantilever movable bridge of span 25.5m, and this bridge is π Zee bar steel Z plate girder bridge.Trestle rear end arranges two bearings, and left and right web respectively arranges one.In bearing crab-bolt direct Transducers Embedded in Concrete pedestal, girder steel and bearing are directly connected by bearing pin.From this bearing 3.5m position, two hydraulic jack lifting devices are set, each one of left and right web, acts the effect promoting movable bridge.At ordinary times, trestle is in lifting status, after ferry boat approaches, puts down movable bridge, and front end is placed on ferry duck, and then automobile sails in ferry boat by this bridge, and finally, ferry boat leaves harbour, and movable bridge lifts, and returns to initial lifting status.
Finding according to owner's file and reconnaissance trip, Guangdong seagoing vessel crosses movable vehicle approach bridge, and there are the following problems: frequently, by abrasion in various degree, and fracture shows obvious Fatigue Fracture Characteristic to the fracture of bearing crab-bolt；Pin bore wear on girder steel and bearing is serious.Solve problem as above, it is necessary first to the reason this problem occur is analyzed.During lifting state, trestle is in single-cantilever state, bearing crab-bolt under tension and the effect of shearing, 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 leads to the fatigue fracture of bolt.During duty, trestle front end is placed on ferry duck, vertically and horizontally move due to ferry boat and the brake force of automobile will cause trestle bearing to receive moment of torsion and shear action, it is transformed in crab-bolt as shearing, it is computed, shear stress values reaches about 120MPa, and due to the uncertainty of ferry moving direction, shear stress amplitude reaches 240MPa.The biggest Fatigue Stress Amplitude be enough to make bolt quickly fatigue fracture.In crab-bolt direct Transducers Embedded in Concrete pedestal at bearing so that bolt directly bears shearing, exacerbates abrasion and the fatigue of crab-bolt.Girder steel and bearing are directly connected by bearing pin, cause obtaining on girder steel and bearing pin shaft hole serious wear, circle abrasion become oval.
Therefore, the fatigue problem of bearing crab-bolt to be solved, it is necessary to solve the stress problem drawn, cut, turn round of bearing.The effect that intrinsic bearing and crab-bolt are drawn simultaneously, cut, turn round, only by changing crab-bolt or alleviating the comprehensive stress problem that the deadweight of trestle is difficult to solve to draw, cut, turn round.
To sum up, conventional type of support is all unsatisfactory for the design requirement of this bridge, so a kind of New Type Bascule Bridge type of support of exigence research.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of movable bridge pedestal configurations, improves movable bridge Bearing Seat Force situation, solves the difficult problem that movable bridge bearing crab-bolt frequently ruptures, thus avoids frequent replacing time.
It is as follows that the utility model solves the technical scheme that its technical problem used:
Movable bridge pedestal configurations of the present utility model, including girder and the bearing that is fixedly installed on concrete pad by crab-bolt, the longitudinal end of girder one is formed hinged with bearing, it is characterized in that: described bearing includes main bearing and is positioned at the limit bearing of both sides；Described main bearing is formed hinged with the median ventral plate of girder by main bearing bearing pin, median ventral plate joint radial bearing；Described limit bearing is formed hinged with the limit web of girder by the slotted hole on limit bearing bearing pin, web joint, limit radial bearing, limit bearing, and limit bearing arranges the elastic component acting on limit web hinged end；The outside of described crab-bolt arranges shearing block.
The beneficial effects of the utility model are, structure innovation, use three abutments pattern, successfully solve the design problem that movable bridge bearing crab-bolt is tired；Reasonable stress, effectively improves movable bridge Bearing Seat Force situation；Thoroughly solve the difficult problem that movable bridge bearing crab-bolt frequently ruptures, it is possible to reduce the operation of frequent replacing time, greatly reduce the impact on ferry hauling operation.
Accompanying drawing explanation
This specification includes following 14 width accompanying drawings:
Fig. 1 is the plane of the utility model movable bridge pedestal configurations；
Fig. 2 is main bearing and the elevation of girder steel connected mode in the utility model movable bridge pedestal configurations；
Fig. 3 is the median ventral plate structural representation of girder steel hinged end in the utility model movable bridge pedestal configurations；
Fig. 4 is the limit web structure schematic diagram of girder steel hinged end in the utility model movable bridge pedestal configurations；
Fig. 5 is the front view of main bearing in the utility model movable bridge pedestal configurations；
Fig. 6 is the top view of main bearing in the utility model movable bridge pedestal configurations；
Fig. 7 is the front view of limit bearing in the utility model movable bridge pedestal configurations；
Fig. 8 is the top view of limit bearing in the utility model movable bridge pedestal configurations；
Fig. 9 is the structural representation that in the utility model movable bridge pedestal configurations, girder steel hinged end median ventral plate is connected with main bearing；
Figure 10 is the structural representation that in the utility model movable bridge pedestal configurations, girder steel hinged end edge web is connected with limit bearing；
Figure 11 is the structural representation of main bearing floor in the utility model movable bridge pedestal configurations；
Figure 12 is the structural representation of limit bearing floor in the utility model movable bridge pedestal configurations；
Figure 13 is girder steel and the attachment structure schematic diagram of limit bearing in the utility model movable bridge pedestal configurations；
Figure 14 is to mark in Fig. 5 to mark the partial enlarged drawing at B at A, in Fig. 7.
Component shown in figure and corresponding mark: girder 10, median ventral plate 11, median ventral plate bearing mounting hole 110, median ventral plate joint radial bearing 111, limit web 12, limit web bearing mounting hole 120, web joint, limit radial bearing 121；Main bearing 20, main bearing pre-embedded steel slab 201, main base-plate 202, main bearing floor 203, main bearing bearing pin 204, circular hole 205；Limit bearing 21, limit bearing pre-embedded steel slab 211, limit base-plate 212, limit bearing floor 213, limit bearing bearing pin 214, slotted hole 215；Crab-bolt 22；Shearing block 23；Concrete pad 30；Elastic component 31.
Detailed description of the invention
With embodiment, the utility model is further illustrated below in conjunction with the accompanying drawings.
With reference to Fig. 1, movable bridge pedestal configurations of the present utility model, being arranged on the bearing on concrete pad 30 including girder 10 with by crab-bolt 22, the longitudinal end of girder 10 1 is formed hinged with bearing, and described bearing includes main bearing 20 and is positioned at the limit bearing 21 of both sides.With reference to Fig. 2 and Fig. 3, Fig. 9, described main bearing 20 is formed hinged with the median ventral plate 11 of girder 10 by main bearing bearing pin 204, median ventral plate joint radial bearing 111.With reference to Fig. 4, Figure 10, Figure 12 and Figure 13, described limit bearing 21 is formed hinged with the limit web 12 of girder 10 by the slotted hole 215 on limit bearing bearing pin 214, web joint, limit radial bearing 120, limit bearing 21.The elastic component 31 acting on limit web 12 hinged end is set on limit bearing 21.With reference to Fig. 4, Fig. 7 and Figure 14, the outside of described crab-bolt 22 arranges shearing block 23.
With reference to Fig. 1, three bearings are set in movable bridge end, centre be can up and down, the main bearing of left-right rotation 20, on limit two be can up and down, left-right rotation, and along the limit bearing 21 that bridge vertically moves, for preventing girder 10 from the excessive changing of the relative positions occurring, destroy hydraulic jack, limit bearing 21 arranges slotted hole 215 as longitudinal spacing structure.With reference to Fig. 8 and Figure 13, limit bearing 21 arranges elastic component 31, automatically resist uneven moment of torsion with the restoring force of elastic component 31, 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 directly to bear shear loads.
With reference to Fig. 5, Fig. 6, described main bearing 20 includes main bearing pre-embedded steel slab 201, main base-plate 202, main bearing pre-embedded steel slab 201 is embedded in concrete pad 30 in advance, and main base-plate 202 is fixed by crab-bolt 22 be connected with main bearing pre-embedded steel slab 201, concrete pad 30.Main base-plate 202 has pair of upstanding and parallel main bearing floor 203, and main bearing floor 203 plate face offers the circular hole 205 passed for main bearing bearing pin 204.With reference to Fig. 3 and Fig. 9, the hinged end of described median ventral plate 11 offers median ventral plate bearing mounting hole 110, median ventral plate joint radial bearing 111 is fixedly installed in this median ventral plate bearing mounting hole 11, and median ventral plate main bearing bearing pin 204 is fixedly installed on median ventral plate joint radial bearing 111.
With reference to Fig. 7 and Fig. 8, described limit bearing 21 includes limit bearing pre-embedded steel slab 211, limit base-plate 212, limit bearing pre-embedded steel slab 211 is embedded in concrete pad 30 in advance, and limit base-plate 212 is fixed by crab-bolt 22 be connected with limit bearing pre-embedded steel slab 211, concrete pad 30.Limit base-plate 212 has pair of upstanding and parallel limit bearing floor 213, and bearing floor 213 plate face, limit offers the slotted hole 215 passed for limit bearing bearing pin 214.With reference to Fig. 4 and Figure 10, the hinged end of described limit web 12 offers limit web bearing mounting hole 120, web joint, limit radial bearing 121 is fixedly installed in this limit web bearing mounting hole 120, and limit bearing bearing pin 214 is fixedly installed on web joint, limit radial bearing 121.With reference to 7 and Figure 14, described elastic component 31 is for being fixedly mounted on compression spring on limit base-plate 212, and the front end of this compression spring is made on the outer annular sidewall of limit web 12 hinged end.
Some principles of the above the utility model movable bridge pedestal configurations that simply explains through diagrams, it is not intended to be confined to by the utility model in shown and described concrete structure and the scope of application, therefore every corresponding amendment being likely utilized and equivalent, belong to the apllied the scope of the claims of the utility model.
Claims (6)
1. movable bridge pedestal configurations, it is fixedly installed on the bearing on concrete pad (30) including girder (10) with by crab-bolt (22), the longitudinal end of girder (10) is formed hinged with bearing, it is characterized in that: described bearing includes main bearing (20) and is positioned at the limit bearing (21) of both sides；Described main bearing (20) is formed hinged with the median ventral plate of girder (10) (11) by main bearing bearing pin (204), median ventral plate joint radial bearing (111)；Described limit bearing (21) is formed hinged with the limit web (12) of girder (10) by the slotted hole (215) on limit bearing bearing pin (214), web joint, limit radial bearing (121), limit bearing (21), and limit bearing (21) is fixedly installed the elastic component (31) acting on limit web (12) hinged end；The outside of described crab-bolt (22) arranges shearing block (23).
2. movable bridge pedestal configurations as claimed in claim 1, it is characterized in that: described main bearing (20) includes main bearing pre-embedded steel slab (201), main base-plate (202), in main bearing pre-embedded steel slab (201) is embedded in concrete pad (30) in advance, main base-plate (202) is fixed with main bearing pre-embedded steel slab (201), concrete pad (30) by crab-bolt (22) and is connected；Main base-plate (202) has pair of upstanding and parallel main bearing floor (203), and main bearing floor (203) plate face offers the circular hole (205) passed for main bearing bearing pin (204).
3. movable bridge pedestal configurations as claimed in claim 2, it is characterized in that: the hinged end of described median ventral plate (11) offers median ventral plate bearing mounting hole (110), median ventral plate joint radial bearing (111) is fixedly installed in this median ventral plate bearing mounting hole (110), and 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, it is characterized in that: described limit bearing (21) includes limit bearing pre-embedded steel slab (211), limit base-plate (212), in limit bearing pre-embedded steel slab (211) is embedded in concrete pad (30) in advance, limit base-plate (212) is fixed with limit bearing pre-embedded steel slab (211), concrete pad (30) by crab-bolt (22) and is connected；Limit base-plate (212) has pair of upstanding and parallel limit bearing floor (213), offering slotted hole (215) on bearing floor (213) plate face, limit, limit bearing bearing pin (214) is through the circular hole on this slotted hole (215) and limit web (12).
5. movable bridge pedestal configurations as claimed in claim 4, it is characterized in that: the hinged end on described limit web (12) offers limit web bearing mounting hole (120), web joint, limit radial bearing (121) is fixedly installed in this limit web bearing mounting hole (120), and limit bearing bearing pin (214) is fixedly installed on web joint, limit radial bearing (121).
6. movable bridge pedestal configurations as claimed in claim 4, it is characterized in that: described elastic component (31) is for being fixedly mounted on the upper compression spring of limit base-plate (212), and the front end of this compression spring is made on the outer annular sidewall of limit web (12) hinged end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095859.XU CN205529866U (en) | 2016-01-29 | 2016-01-29 | Movable bridge support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095859.XU CN205529866U (en) | 2016-01-29 | 2016-01-29 | Movable bridge support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205529866U true CN205529866U (en) | 2016-08-31 |
Family
ID=56774312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620095859.XU Withdrawn - After Issue CN205529866U (en) | 2016-01-29 | 2016-01-29 | Movable bridge support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205529866U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544383A (en) * | 2016-01-29 | 2016-05-04 | 中铁二院工程集团有限责任公司 | Movable-bridge support structure |
| WO2020167878A1 (en) * | 2019-02-12 | 2020-08-20 | Gibraltar Industries | Structural bearing configuration and method of making same |
-
2016
- 2016-01-29 CN CN201620095859.XU patent/CN205529866U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544383A (en) * | 2016-01-29 | 2016-05-04 | 中铁二院工程集团有限责任公司 | Movable-bridge support structure |
| CN105544383B (en) * | 2016-01-29 | 2017-04-12 | 中铁二院工程集团有限责任公司 | Movable-bridge support structure |
| WO2020167878A1 (en) * | 2019-02-12 | 2020-08-20 | Gibraltar Industries | Structural bearing configuration and method of making same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20170412 |