CN107460820B - A kind of support device of the slow drop of control hazard to bridge's pier - Google Patents
A kind of support device of the slow drop of control hazard to bridge's pier Download PDFInfo
- Publication number
- CN107460820B CN107460820B CN201710818310.8A CN201710818310A CN107460820B CN 107460820 B CN107460820 B CN 107460820B CN 201710818310 A CN201710818310 A CN 201710818310A CN 107460820 B CN107460820 B CN 107460820B
- Authority
- CN
- China
- Prior art keywords
- protective housing
- slow drop
- bridge
- right cylinder
- correcting wedge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of support devices of slow drop of control hazard to bridge's pier.Present invention mainly solves the jump vehicle technical problems of the current limited generation of attachment strap relief capabilities.The technical scheme is that a kind of support device of the slow drop of control hazard to bridge's pier comprising connect support right cylinder, protective housing, locating ring, correcting wedge, slow drop control mechanism and the rope of attachment strap；The locating ring is located among protection box cavity, locating ring is connect by connecting rod with the two sidewalls of box cavity are protected, correcting wedge is located at the lower part of protection box cavity and its bottom is located in the sliding slot of protective housing, the support right cylinder bottom end is directly contacted by locating ring with correcting wedge inclined-plane, right cylinder upper end is supported to pass through the post holes of protective housing top panel setting, correcting wedge side is connected by rope with the gear shaft of slow drop control mechanism, and slow drop control mechanism is located at the both sides on protection box cavity top.The present invention has the advantages that total bearing capacity is high, deformation is small, applicability is good, engineering material is saved and is easy to construct and safeguard.
Description
Technical field
The present invention relates to a kind of support devices of slow drop of control hazard to bridge's pier.
Background technique
With the rapid development of construction of road and bridge and the raising of road quality classification, to safety of road and bridge during operation, relax
More stringent requirements are proposed for the indexs such as adaptive and rapidity.And bumping at bridge-head is road and bridge one comparison during using and being on active service
Common phenomenon causes driver and passenger's body to jolt discomfort, has seriously affected safety, the comfort of vehicle pass-through.Meanwhile
Can also driving vehicle be made significantly to slow down, cause different degrees of traffic accident, brought security risk, caused bad
Social influence.Meanwhile vehicle passes through the jump generated when road-bridge transition section and impact bring additional dynamic load and water damage
Coupling will accelerate the damage and destruction at Abutment Back, support, end of the bridge expansion joint etc., and maintenance department is furnished a huge amount of money for every year to end of the bridge
Maintenance and maintenance, also bring huge financial burden.Causing vehicle to jolt, to jump the basic reason of vehicle be since abutment pedestal is logical
It is often reinforced concrete member, overall stiffness is big, embankment soil body category flexible structure object after platform, under vehicular load, Gravitative Loads,
It generates Compression Settlement (flexible deformation and permanent deformation).In addition, embankment is in the construction process, adjacent close to end of the bridge pedestal after platform
Embankment position be extremely difficult to closely knit requirement, the embankment of abutment and embankment joining place can sink (time deformation) frequently after being open to traffic.
Problem of bumping at bridge-head is generated in order to solve the differential settlement of bridge and road, most common treating method is in abutment and embankment
Between shelve attachment strap, the step height difference that the junction Tai Di is mutated is decomposed to the both ends of attachment strap, can effectively slow down vehicle row
Sail to the jump vehicle phenomenon of end of the bridge.However, the length of actually attachment strap is eventually limited, the height difference of abutment and roadbed can be with by attachment strap
Abatement a part, but cause to jump vehicle there are still relative settlement between the end and roadbed of attachment strap.Therefore, problem of bumping at bridge-head
It is urgent problem to be solved in high-grade highway construction all the time, there is an urgent need to invent a kind of bridge for overcoming prior art defect
Platform attachment strap ramp-down device fundamentally solves the problems, such as the jump vehicle of the current limited generation of attachment strap relief capabilities.
Summary of the invention
The present invention is to overcome the shortcomings of the prior art, provide a kind of total bearing capacity is high, deformation is small, applicability is good,
The support device for controlling the slow drop of hazard to bridge's pier that engineering material is saved and is easy to construct and safeguard.The support device can be adjusted accurately
The end elevation location of attachment strap is saved, realizes the slow drop of hazard to bridge's pier to eliminate the height difference that the unbalanced sedimentation of roadbed generates, it is ensured that attachment strap
With road surface joining place smooth transition, to avoid bumping at bridge-head.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of support device of the slow drop of control hazard to bridge's pier comprising connect support right cylinder, the protective housing, positioning of attachment strap
Circle, correcting wedge, slow drop control mechanism and rope；The locating ring be located at protection box cavity among, locating ring by connecting rod with
The two sidewalls connection of box cavity is protected, correcting wedge is located at the lower part of protection box cavity and its bottom is located at the setting of protective housing bottom
Sliding slot in, the support right cylinder bottom end is directly contacted with correcting wedge inclined-plane by locating ring, and support right cylinder upper end, which passes through, prevents
The post holes of protecting box top panel setting, correcting wedge side are connected by rope with the gear shaft of slow drop control mechanism, and drop control is delayed
Mechanism is located at the both sides on protection box cavity top；The slow drop control mechanism by screw rod, upper screw sleeve, gear, gear shaft and
Lower screw sleeve composition, the upper screw sleeve are located on the screw hole of protective housing top surface, and the lower screw sleeve is located on connecting rod,
For the screw rod in upper screw sleeve and lower screw sleeve, the gear is located at the inner cavity top of protective housing simultaneously by gear shaft
Positioned at screw rod side and gear be meshed with screw rod.
Further, the bottom of the protection box cavity is equipped with sliding slot, and the centre of protective housing top panel, which is equipped with, can pass through branch
The post holes of right cylinder is supportted, the both sides of protective housing top panel, which are equipped with, to protect four sides of box cavity two sidewalls by the screw hole of screw rod
Fixed pulley is equipped at angle.
Further, the correcting wedge is two, is symmetrical set, and the correcting wedge inclined-plane tilts tangent of an angle
Value should be less than the coefficient of friction of its contact surface.
Further, the support right cylinder cross-sectional shape is in circle, annulus, rectangle, H font, flute profile or box-shaped
Any one；The material for supporting right cylinder is reinforced column, steel column, steel core concrete column, combined steel and concrete column or FRP- mixed
Coagulate any one in earth pillar.
Further, the rope is high tensile steel wire, carbon fiber, basalt fibre, aramid fiber, nylon or PBO material
Made of fiber any one.
The beneficial effects of the present invention are: one end of attachment strap is placed in abutment, the other end is set when lap slab of bridge is installed in setting
In support post top end of the invention, the mobility of the correcting wedge of the lower section of support right cylinder is utilized, passes through turning for screw rod
The dynamic rotation with moving gear realizes that rope is slowly wrapped on gear shaft, is further driven to the connected correcting wedge of rope along sliding
The left and right movement of slot realizes the height of supporting descending right cylinder, to realize that the absolute altitude of the attachment strap of upper support is adjustable, to adapt to
Height difference caused by settlement of foundation guarantees bridge and the smooth transition of road surface junction, avoids the jump vehicle of abutment.Therefore, with background skill
Art is compared, and the present invention has that total bearing capacity is high, deformation is small, applicability is good, engineering material is saved and is easy to construct and maintenance
Advantage.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is slow drop control mechanism schematic diagram.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, the support device of the slow drop of one of the present embodiment control hazard to bridge's pier comprising connection
Support right cylinder 1, protective housing 2, locating ring 7, correcting wedge 8, slow drop control mechanism and the rope 9 of attachment strap；The locating ring 7 is located at
Among 2 inner cavity of protective housing, locating ring 7 is connect by connecting rod 6 with the two sidewalls of 2 inner cavity of protective housing, and correcting wedge 8 is located at protective housing
The lower part of 2 inner cavities and its bottom are located in the sliding slot 11 of 2 bottom of protective housing setting, and 1 bottom end of support right cylinder passes through locating ring
It is directly contacted with 8 inclined-plane of correcting wedge, support 1 upper end of right cylinder passes through the post holes of 2 top panel of protective housing setting, 8 side of correcting wedge
Face is connected by rope with the gear shaft 12 of slow drop control mechanism, and slow drop control mechanism is located at the both sides on 2 inner cavity top of protective housing.
The bottom of 2 inner cavity of protective housing is equipped with sliding slot 11, and the centre of 2 top panel of protective housing is equipped with can be by support right cylinder
1 post holes, the both sides of 2 top panel of protective housing are equipped with the screw hole that can pass through screw rod 3, four corners of 2 inner cavity two sidewalls of protective housing
Place is equipped with fixed pulley 10.
The slow drop control mechanism is made of screw rod 3, upper screw sleeve 4, gear 5, gear shaft 12 and lower screw sleeve 13,
The upper screw sleeve 4 is located on the screw hole of 2 top surface of protective housing, and the lower screw sleeve 13 is located on connecting rod 6, the screw rod 3
In upper screw sleeve 4 and lower screw sleeve 13, the gear 5 is located at the inner cavity top of protective housing 2 simultaneously by gear shaft 12
Positioned at screw rod 3 side and gear 5 be meshed with screw rod 3.
The correcting wedge 8 is two, is symmetrical set, the tangent value at the 8 inclined-plane inclination angle of correcting wedge is answered small
In the coefficient of friction of its contact surface.
Support 1 cross-sectional shape of right cylinder is any one in circle, annulus, rectangle, H font, flute profile or box-shaped；
The material for supporting right cylinder 1 is in reinforced column, steel column, steel core concrete column, combined steel and concrete column or FRP- concrete column
Any one.
The rope 9 is made of high tensile steel wire, carbon fiber, basalt fibre, aramid fiber, nylon or PBO material fiber
Any one.
Construction method of the invention are as follows:
1) according to bridge axes, length of setting up the stage, road width center line determines the position of foundation pit；The ruler of excavation of foundation pit extremely design
It is very little；Substrate soil is handled, by substrate cutouts or whole Soft Soil Layers, backfill physical property is preferably native, with sand pile, sand
Well, lime pile, plastic draining board discharging consolidation or tamping press closely knit.When deeper for bearing stratum, it can also use
Pile foundation.
2) template is set up in foundation pit surrounding and bottom, assembling reinforcement, and in the steel plate of the pre-buried groove profile in bottom, and in left and right sides
Fixed pulley built-in fitting, the pre-buried bearing-seat component on rear wall are placed in wall upper and lower position, in addition, having locating ring, lower screw sleeve
Connecting rod be also secured in left and right sidewall, last casting concrete.
3) after concrete reaches intensity, lubricant is smeared on groove profile steel plate, is then placed in correcting wedge accordingly
Position, by prefabricated support right cylinder by being established on correcting wedge after locating ring.
4) by the lower end of screw rod in lower screw sleeve, cogged gear shaft will be filled in bearing block and ensure spiral shell
Bar meshes together with gear.Rope one end is connected with correcting wedge side, by fixed pulley, restrict another Suo Yiduan and gear shaft
It is connected.
5) it is placed on support right cylinder and screw rod after beating post holes and screw hole on panel on the steel plate, upper screw sleeve covers
It is connect on screw rod and with top panel, finally forms protective housing in the fixation of top panel surrounding.
In addition, top panel, screw surface also need anti-corrosion, corrosion protection processing in construction method of the present invention；Gear and screw rod
Between also need lubricated.
Claims (5)
1. a kind of support device of the slow drop of control hazard to bridge's pier, it is characterised in that: including connecting the support right cylinder (1) of attachment strap, preventing
Protecting box (2), locating ring (7), correcting wedge (8), slow drop control mechanism and rope (9)；The locating ring (7) is located at protective housing
(2) among inner cavity, locating ring (7) is connect by connecting rod (6) with the both side plate of protective housing (2) inner cavity, and correcting wedge (8) is located at anti-
The lower part and its bottom of protecting box (2) inner cavity are located in the sliding slot (11) of protective housing (2) bottom setting, support right cylinder (1) bottom
End is directly contacted by locating ring with correcting wedge (8) inclined-plane, and support right cylinder (1) upper end is arranged across protective housing (2) top panel
Post holes, correcting wedge (8) side is connected by rope with the gear shaft (12) of slow drop control mechanism, is delayed and is dropped control mechanism and be located at
The both sides on protective housing (2) inner cavity top；The slow drop control mechanism is by screw rod (3), upper screw sleeve (4), gear (5), gear
Axis (12) and lower screw sleeve (13) composition, the upper screw sleeve (4) is located on the screw hole of protective housing (2) top surface, under described
Screw sleeve (13) is located on connecting rod (6), and the screw rod (3) is described in upper screw sleeve (4) and lower screw sleeve (13)
Gear (5) is located at the inner cavity top of protective housing (2) by gear shaft (12) and is located at side and gear (5) and the spiral shell of screw rod (3)
Bar (3) is meshed.
2. the support device of the slow drop of control hazard to bridge's pier according to claim 1, it is characterised in that: the protective housing (2)
The bottom of inner cavity is equipped with sliding slot (11), and the centre of protective housing (2) top panel is equipped with can be by the post holes of support right cylinder (1), protection
The both sides of case (2) top panel are equipped with the screw hole that can pass through screw rod (3), and four edges of protective housing (2) inner cavity both side plate are equipped with
Fixed pulley (10).
3. the support device of the slow drop of control hazard to bridge's pier according to claim 1, it is characterised in that: the correcting wedge
It (8) is two；It is symmetrical set, the tangent value at correcting wedge (8) the inclined-plane inclination angle should be less than the friction of its contact surface
Coefficient.
4. the support device of the slow drop of control hazard to bridge's pier according to claim 1, it is characterised in that: the support right cylinder
(1) cross-sectional shape is any one in circle, annulus, rectangle, H font, flute profile or box-shaped；Support the material of right cylinder (1)
For any one in reinforced column, steel column, steel core concrete column, combined steel and concrete column or FRP- concrete column.
5. the support device of the slow drop of control hazard to bridge's pier according to claim 1, it is characterised in that: the rope is high-strength
Steel wire, carbon fiber, basalt fibre, aramid fiber, made of nylon or PBO material fiber any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818310.8A CN107460820B (en) | 2017-09-12 | 2017-09-12 | A kind of support device of the slow drop of control hazard to bridge's pier |
| JP2018002985U JP3218420U (en) | 2017-09-12 | 2018-08-02 | Support mechanism of road bridge approach slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710818310.8A CN107460820B (en) | 2017-09-12 | 2017-09-12 | A kind of support device of the slow drop of control hazard to bridge's pier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107460820A CN107460820A (en) | 2017-12-12 |
| CN107460820B true CN107460820B (en) | 2019-01-15 |
Family
ID=60552340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710818310.8A Expired - Fee Related CN107460820B (en) | 2017-09-12 | 2017-09-12 | A kind of support device of the slow drop of control hazard to bridge's pier |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3218420U (en) |
| CN (1) | CN107460820B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316128B (en) * | 2018-01-09 | 2019-11-19 | 山西大学 | A kind of novel road bridge attachment strap structure and its construction method |
| CN108894098B (en) * | 2018-07-27 | 2020-10-09 | 中冶南方工程技术有限公司 | Bridge slab base for solving problem of vehicle bump at bridge head and method for solving problem of vehicle bump at bridge head |
| CN109338875B (en) * | 2018-10-30 | 2023-09-19 | 中国地质大学（武汉） | Friction damping support for bridge |
| CN111236043A (en) * | 2020-01-10 | 2020-06-05 | 山西大学 | Novel road bridge attachment strap connection structure of self-adaptation height |
| CN111424533B (en) * | 2020-05-11 | 2024-09-20 | 中铁二院工程集团有限责任公司 | Bridge tunnel and bridge road junction area anti-skip device, bridge and use method |
| CN113897875B (en) * | 2021-11-15 | 2024-07-09 | 吉林建筑大学 | Transition device for road bridge construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892635A (en) * | 2010-08-11 | 2010-11-24 | 中交第四航务工程局有限公司 | Method for solving problem of vehicle bump at bridge head and structure thereof |
| CN202610700U (en) * | 2012-05-31 | 2012-12-19 | 东南大学 | Mounting structure of bridge abutment access board |
| CN204825618U (en) * | 2015-07-30 | 2015-12-02 | 辽宁科技学院 | Transition slab device |
| CN205188819U (en) * | 2015-12-08 | 2016-04-27 | 郑州大学 | Support arrangement for prevent either end of a bridge jump car |
| KR20160085086A (en) * | 2015-01-07 | 2016-07-15 | 주식회사 포스코건설 | Settlement adjusting apparatus and settlement adjusting maintenance method for earthwork connecting portion |
-
2017
- 2017-09-12 CN CN201710818310.8A patent/CN107460820B/en not_active Expired - Fee Related
-
2018
- 2018-08-02 JP JP2018002985U patent/JP3218420U/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892635A (en) * | 2010-08-11 | 2010-11-24 | 中交第四航务工程局有限公司 | Method for solving problem of vehicle bump at bridge head and structure thereof |
| CN202610700U (en) * | 2012-05-31 | 2012-12-19 | 东南大学 | Mounting structure of bridge abutment access board |
| KR20160085086A (en) * | 2015-01-07 | 2016-07-15 | 주식회사 포스코건설 | Settlement adjusting apparatus and settlement adjusting maintenance method for earthwork connecting portion |
| CN204825618U (en) * | 2015-07-30 | 2015-12-02 | 辽宁科技学院 | Transition slab device |
| CN205188819U (en) * | 2015-12-08 | 2016-04-27 | 郑州大学 | Support arrangement for prevent either end of a bridge jump car |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3218420U (en) | 2018-10-11 |
| CN107460820A (en) | 2017-12-12 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20210912 |