CN203977286U - Replaceable modulus bridge expansion device - Google Patents
Replaceable modulus bridge expansion device Download PDFInfo
- Publication number
- CN203977286U CN203977286U CN201420458162.5U CN201420458162U CN203977286U CN 203977286 U CN203977286 U CN 203977286U CN 201420458162 U CN201420458162 U CN 201420458162U CN 203977286 U CN203977286 U CN 203977286U
- Authority
- CN
- China
- Prior art keywords
- central sill
- top board
- side bar
- displacement case
- bearing
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model belongs to bridge extension joint technical field, discloses replaceable modulus bridge expansion device.Its technical characteristics is: every central sill is fixedly connected with a bearing cross beam, between side bar and the central sill adjacent with this side bar and be provided with polyurethane spring between adjacent central sill, the above and below of the bearing cross beam in described displacement case is respectively arranged with compressing support and bearing, described side bar end face is equal with the cover top surface of displacement case, be provided with the bottom plate with lower through-hole on described box side top, on described top board, be provided with the screw corresponding with this lower through-hole, described top board and casing are bolted.In installation process, central sill upper surface and displacement roof box upper surface align with grade elevation, the upper surface of top board must not oversite concrete, when compressing support in maintenance and in changing central sill or displacement case, bearing and polyurethane spring, only need open top board, convenient and swift, greatly shorten the component time that checks, keeps in repair and change stretching device, reduce maintenance cost.
Description
Technical field
The utility model belongs to modulus bridge expansion device technical field, relates to specifically replaceable modulus bridge expansion device.
Background technology
Stretching device is the important composition parts of bridge, and the quality of its performance directly has influence on the safety of reliable, the car operation of bridge telescopicing performance.But owing to designing, manufacturing, installing, use and maintenance aspect, have every year a lot of bridge extension joints to damage.Once stretching device damages, the one, easily produce security incident, suspend traffic; The 2nd, the dirt falling along seam causes the corrosion of bridge substructure.This just require to improve on the one hand stretching device designing requirement, manufacture standard, installation quality, strengthen using supervision, inspection and routine servicing, want timely rapid-maintenance to change to the stretching device damaging on the other hand.The side bar of modulus bridge expansion device and displacement case seldom damage, general damage as central sill and supporting beam snap or rupture, and bearing, compressing support and polyurethane spring damage or come off.The load-carrying members of modulus bridge expansion device are mainly made up of central sill and bearing cross beam, the design size of central sill and supporting beam and supporting beam pitch arrangement mainly design according to national standard payload values, but domestic communication exist heavy duty, at a high speed, the phenomenon such as vehicle flowrate is large, the external force that these factors produce can directly increase the instant impact to stretching device, bridge extension joint is for a long time in fatigue state, thereby causes central sill and supporting beam fracture., As time goes on, also can there is the problems such as aging and damage in bearing, compressing support and polyurethane spring in displacement case, need to change.The modulus bridge expansion device displacement case using is at present an overall structure, and entirety is embedded in beam-ends concrete, on the upper surface of top board, lay the concrete that is greater than seven centimetres of thickness, if do not destroy concrete, do not cut off displacement roof box and just can not check and change the component in central sill, supporting beam and displacement case, check, keep in repair and change extremely inconvenient.Modulus bridge expansion device central sill fracture now, bearing or compressing support all suspend traffic after damaging, cut intermediate zone concrete, by stretching device integral replacing, after young concrete, need the curing time at least one week, maintenance cost is high, remove old seam, more renew seam waste time and energy.
Utility model content
The technical problem that the utility model solves is just to provide a kind of replaceable modulus bridge expansion device that operation is simple, replacement cost is low, the time is short, do not break off a friendship of changing.
For solving the problems of the technologies described above, the technical scheme the utility model proposes is: comprise displacement case, two side bars and many central sills between side bar, between side bar and the central sill adjacent with this side bar and be provided with rubber seal tape between adjacent central sill, every central sill is fixedly connected with a bearing cross beam, between side bar and the central sill adjacent with this side bar and be provided with polyurethane spring between adjacent central sill, the above and below of the bearing cross beam in described displacement case is respectively arranged with compressing support and bearing, described displacement case is fixedly connected with described side bar, described displacement case comprises top board and casing, described side bar end face is equal with the cover top surface of displacement case, be provided with the bottom plate with lower through-hole on described box side top, on described top board, be provided with the screw corresponding with this lower through-hole, described top board and casing are bolted.
Its additional technical feature is:
Between described casing and top board, be provided with macromolecular elastomer packing ring;
Between described compressing support and top board soffit, be provided with steel lining bar.
The replaceable modulus bridge expansion device that the utility model provides and installation thereof and maintenance replacing method, compared with the existing technology have the following advantages: one, owing to comprising displacement case, two side bars and many central sills between side bar, between side bar and the central sill adjacent with this side bar and be provided with rubber seal tape between adjacent central sill, every central sill is fixedly connected with a bearing cross beam, between side bar and the central sill adjacent with this side bar and be provided with polyurethane spring between adjacent central sill, the above and below of the bearing cross beam in described displacement case is respectively arranged with compressing support and bearing, described displacement case is fixedly connected with described side bar, described displacement case comprises top board and casing, described side bar end face is equal with the cover top surface of displacement case, be provided with the bottom plate with lower through-hole on described box side top, on described top board, be provided with the screw corresponding with this lower through-hole, described top board and casing are bolted, in installation process, central sill upper surface and displacement roof box upper surface align with grade elevation, the upper surface of top board must not oversite concrete, compressing support in maintenance and replacing central sill or displacement case, when bearing and polyurethane spring, only need open top board, a corresponding bearing cross beam of central sill in same displacement unit, make the replacing of central sill become possibility, only need to change the central sill damaging and do not interfere other central sills, every bearing cross beam has corresponding bearing and compressing support in displacement case, and changing the bearing damaging can not affect miscellaneous part, displacement case end face and bridge floor maintain an equal level, displacement roof box is connected with bolt with displacement case side plate, ensure can dismantle displacement roof box in the situation that not destroying shrinkage joint intermediate zone concrete and displacement case, convenient and swift, greatly shorten the component time that checks, keeps in repair and change stretching device, reduce maintenance cost, its two, between described casing and top board, be provided with macromolecular elastomer packing ring, play vibration damping sealing function, traffic road vibration is attenuated, extend stretching device application life, its three, owing to being provided with steel lining bar between described compressing support and top board soffit, be convenient to adjust the distance of compressing support and top board, can be according to the distance between compressing support and top board, use the steel lining bar of different-thickness.
Brief description of the drawings
Fig. 1 is the installation effect schematic diagram of replaceable modulus bridge expansion device;
Fig. 2 is replaceable modulus bridge expansion device displacement case place top view;
Fig. 3 is the sectional view of Fig. 2 along A-A;
Fig. 4 is the sectional view of Fig. 3 along B-B;
Fig. 5 is the sectional view of Fig. 3 along C-C.
Detailed description of the invention
Replaceable modulus bridge expansion device the utility model being proposed below in conjunction with accompanying drawing and installation thereof and maintenance replacing method are described further.
As depicted in figs. 1 and 2, replaceable modulus bridge expansion device comprises displacement case 5, two side bars 2 and the many central sills 3 between side bar, between side bar 2 and the central sill 3 adjacent with this side bar and be provided with rubber seal tape 4 between adjacent central sill 3, side bar 2 is connected with beam body 11 with displacement case 5, and the end face of the end face of side bar 2, the end face of central sill 3 and displacement case 5 is equal with bridge floor.As Fig. 3, shown in Fig. 4 and Fig. 5, every central sill 3 is fixedly connected with a bearing cross beam 1, between side bar 2 and the central sill 3 adjacent with this side bar and be provided with polyurethane spring 10 between adjacent central sill 3, the above and below of the bearing cross beam 1 in displacement case 5 is respectively arranged with compressing support 6 and bearing 7, displacement case 5 comprises top board 51 and casing 52, the end face of side bar 2, the end face of central sill 3, the upper surface of the top board 51 of the end face of side bar 2 and displacement case is equal, be provided with the bottom plate 54 with lower through-hole 53 on casing 52 side plate tops, on top board 51, be provided with the screw corresponding with this lower through-hole 53 55, top board 51 is connected by bolt 56 with casing 52.In installation process, the upper surface of the top board 51 of the upper surface of central sill 3 and displacement case aligns with grade elevation, the upper surface of top board 51 must not oversite concrete, when compressing support in maintenance and in changing central sill or displacement case, bearing and polyurethane spring, only need open top board, in same displacement unit, the corresponding bearing cross beam 1 of central sill 3, makes the replacing of central sill 3 become possibility, only needs to change the central sill 3 damaging and does not interfere other central sills; Every bearing cross beam 1 has corresponding bearing 7 and compressing support 6 in displacement case, and changing the bearing damaging can not affect miscellaneous part; Displacement case end face and bridge floor maintain an equal level, displacement roof box is connected with bolt with displacement case side plate, ensure can dismantle displacement roof box in the situation that not destroying shrinkage joint intermediate zone concrete and displacement case, convenient and swift, greatly shorten the component time that checks, keeps in repair and change stretching device, reduce maintenance cost.
Between casing 52 and top board 51, be provided with macromolecular elastomer packing ring 57, play vibration damping sealing function, traffic road vibration is attenuated, extend stretching device application life.
Between compressing support 6 and the soffit of top board 51, be provided with steel lining bar 9, be convenient to adjust the distance of compressing support and top board, can, according to the distance between compressing support and top board, use the steel lining bar of different-thickness.
Be provided with stainless steel slide plate 8 in the upper and lower end face of bearing cross beam 1.
The load bearing system that side bar 2, central sill 3, bearing cross beam 1, compressing support 6, bearing 7 and displacement case 5 form can bear wheel load; The sealing system that side bar 2, central sill 3 and rubber seal tape 4 form can stop that rainwater, dirt flow down along seam; Polyurethane spring 10 can be controlled stretching device with bearing cross beam 1, and respectively seam is wide evenly; The flexible members such as compressing support 6, bearing 7 and polyurethane spring 10 can adapt to longitudinal, horizontal and vertical displacement and the corner of bridge.
The mounting method of above-mentioned replaceable modulus bridge expansion device, the method comprises the following steps:
The first step, puts replaceable modulus bridge expansion device entirety in beam-ends preformed groove into, and the center line of stretching device and beam-ends preformed groove gap center line align, and the upper surface of the upper surface of central sill 3 and displacement case 5 top boards 51 aligns with grade elevation;
Second step, the embedded ribs in stretching device anchoring piece, preformed groove with cross muscle and connect together, fixedly secures preformed groove in installation site by stretching device by welding method;
The 3rd step, builds intermediate zone steel fibrous concrete and makes stretching device and beam or abutment form entirety, and concrete adopts and manually builds, and vibration compacting should strictly be controlled height and the planeness of concrete surface, notices that the upper surface of top board must not oversite concrete;
The 4th step, concrete curing, many 7 days of curing time, can be open to traffic after intensity reaches 80%.
The repair method of above-mentioned replaceable modulus bridge expansion device, the method comprises the following steps:
The method comprises the following steps:
The first step, opens top board 51
The connecting bolt 56 of top board 51 and casing of outwarding winding, and remove top board 51;
Second step, maintenance moves the parts in case
To the compressing support 6 in displacement case, bearing 7 and polyurethane spring 10, the parts that damage are carried out to mark by range estimation;
The 3rd step, detects central sill 3
Detect by range estimation or instrument, central sill 3 is detected, the central sill 3 damaging is carried out to mark;
The 4th step, the parts of changing central sill 3 and relating to
If central sill 3 has damage, take off steel lining bar 9 and compressing support 6 in involved several displacement casees 5, the central sill 3 damaging is taken off together with bearing cross beam 1, lay the central sill of one section of equal length of getting ready in advance with bearing cross beam 1, put back to again compressing support and steel lining bar, if compressing support 6, bearing 7 and polyurethane spring 10 have damage, together change;
The 5th step, changes the damage parts in displacement case
The compressing support 6 damaging in other displacement casees, bearing 7 and polyurethane spring 10 are changed;
The 6th step, covers top board
Top board 51 is built, and bolt 56 is spun.
Protection domain of the present utility model is not only confined to above-described embodiment, as long as structure is identical with the replaceable modulus bridge expansion device structure of the utility model, just drops on the scope of the utility model protection.
Claims (3)
1. replaceable modulus bridge expansion device, comprise displacement case, two side bars and many central sills between side bar, between side bar and the central sill adjacent with this side bar and be provided with rubber seal tape between adjacent central sill, it is characterized in that: the central sill described in every is fixedly connected with a bearing cross beam, between side bar and the central sill adjacent with this side bar and be provided with polyurethane spring between adjacent central sill, the above and below of the bearing cross beam in described displacement case is respectively arranged with compressing support and bearing, described displacement case is fixedly connected with described side bar, described displacement case comprises top board and casing, described side bar end face is equal with the cover top surface of displacement case, be provided with the bottom plate with lower through-hole on described box side top, on described top board, be provided with the screw corresponding with this lower through-hole, described top board and casing are bolted.
2. replaceable modulus bridge expansion device according to claim 1, is characterized in that: between described casing and top board, be provided with macromolecular elastomer packing ring.
3. replaceable modulus bridge expansion device according to claim 1, is characterized in that: between described compressing support and top board soffit, be provided with steel lining bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420458162.5U CN203977286U (en) | 2014-08-14 | 2014-08-14 | Replaceable modulus bridge expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420458162.5U CN203977286U (en) | 2014-08-14 | 2014-08-14 | Replaceable modulus bridge expansion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203977286U true CN203977286U (en) | 2014-12-03 |
Family
ID=51974744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420458162.5U Withdrawn - After Issue CN203977286U (en) | 2014-08-14 | 2014-08-14 | Replaceable modulus bridge expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203977286U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153289A (en) * | 2014-08-14 | 2014-11-19 | 衡水布朗科技有限公司 | Replaceable modular bridge expansion device and installation and maintenance replacement method thereof |
| CN104762874A (en) * | 2015-04-08 | 2015-07-08 | 杨皓玮 | Joint expansion and contraction device for assembled bridge and mounting method of joint expansion and contraction device |
| CN111119039A (en) * | 2019-12-31 | 2020-05-08 | 山西省交通新技术发展有限公司 | Displacement device for plate type expansion joint of highway bridge |
| CN111305060A (en) * | 2020-04-21 | 2020-06-19 | 衡水旗舰桥隧橡塑有限公司 | Rotary rod type multidirectional displacement bridge expansion device |
-
2014
- 2014-08-14 CN CN201420458162.5U patent/CN203977286U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153289A (en) * | 2014-08-14 | 2014-11-19 | 衡水布朗科技有限公司 | Replaceable modular bridge expansion device and installation and maintenance replacement method thereof |
| CN104153289B (en) * | 2014-08-14 | 2016-03-02 | 衡水布朗科技有限公司 | Replaceable modulus bridge expansion device and install and examine and replace method |
| CN104762874A (en) * | 2015-04-08 | 2015-07-08 | 杨皓玮 | Joint expansion and contraction device for assembled bridge and mounting method of joint expansion and contraction device |
| CN111119039A (en) * | 2019-12-31 | 2020-05-08 | 山西省交通新技术发展有限公司 | Displacement device for plate type expansion joint of highway bridge |
| CN111119039B (en) * | 2019-12-31 | 2021-11-23 | 山西省交通新技术发展有限公司 | Displacement device for plate type expansion joint of highway bridge |
| CN111305060A (en) * | 2020-04-21 | 2020-06-19 | 衡水旗舰桥隧橡塑有限公司 | Rotary rod type multidirectional displacement bridge expansion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104153289B (en) | Replaceable modulus bridge expansion device and install and examine and replace method | |
| CN203977286U (en) | Replaceable modulus bridge expansion device | |
| CN104018434B (en) | The replacing options of architectural vibration-insulation rubber supporting seat | |
| CN105603871A (en) | Bridge telescoping unit component and bridge telescoping device | |
| CN103938505B (en) | Orbit traffic floating board is with easily changing rubber shock absorber and replacing options thereof | |
| KR101506118B1 (en) | Expansion joint for bridge and installing and repairing method for using the same | |
| CN203603050U (en) | Telescopic device for inverted-T-shaped bent cap | |
| CN203701451U (en) | Draining system for steel structural workshop | |
| CN205012241U (en) | Device of making an uproar falls in nearly rail of T roof beam | |
| CN207435888U (en) | A kind of bridge expanssion joint attachment device | |
| CN106284062A (en) | Bridge telescopic unit component and bridge extension joint | |
| CN203768745U (en) | Easily-replaced rubber vibration isolator for rail traffic floating slab | |
| CN205329535U (en) | Novel bridge double slit formula expansion joint device | |
| CN208472559U (en) | Maintainable Combined bridge expansion joint structure | |
| CN205010324U (en) | A inflating pump bracket for [electric] motor coach | |
| CN215252300U (en) | Sectional combined type damping and noise reducing bridge expansion device | |
| CN107354877B (en) | Integral cup opening mounting structure for sound barrier | |
| CN208717727U (en) | A kind of novel maintenance-free noise abatement bridge extension joint | |
| CN207405479U (en) | A kind of easily changeable bridge expanssion joint water-tight device | |
| CN205712173U (en) | Melt pit side bar | |
| CN207209786U (en) | The cast-in-place boom support monoblock type automatic disassembling device of falsework | |
| CN204900515U (en) | Wear -resisting rust -resistant structure of portal frame articulated shaft | |
| CN205177551U (en) | Oil groove anti vibration observation window | |
| CN203583356U (en) | Replaceable road weather-proof expansion device | |
| CN203904828U (en) | Rubber bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |