CN106812068A - A kind of device for progressively turning down suspension bridge construction phase temporary support height - Google Patents
A kind of device for progressively turning down suspension bridge construction phase temporary support height Download PDFInfo
- Publication number
- CN106812068A CN106812068A CN201710047470.7A CN201710047470A CN106812068A CN 106812068 A CN106812068 A CN 106812068A CN 201710047470 A CN201710047470 A CN 201710047470A CN 106812068 A CN106812068 A CN 106812068A
- Authority
- CN
- China
- Prior art keywords
- husky
- plate
- fine sand
- bearing
- base
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention discloses a kind of device for progressively turning down suspension bridge construction phase temporary support height, including bearing top board, base-plate, husky groove, fine sand and valve；The bearing top board is bolted below steel truss girder lower boom, and bearing top board is arranged below bearing rubber layer, and bearing rubber layer is arranged below base-plate；The husky groove is to be surrounded to be located in husky trough floor by husky groove side plate four sides, form a top-open structure, fine sand is provided with husky groove, the base-plate is located on the top surface of fine sand, the Internal periphery of husky groove side plate leaves gap with the periphery of base-plate, and husky groove side plate is provided with the valve for fine sand to be discharged；The husky trough floor is placed on bridge tower sill top surface, and is bolted with it, and the thickness of the fine sand is exactly that bearing needs padded height with husky bottom land plate thickness sum.The present invention using husky groove cuff fine sand, can support carriers base plate, using the synchronous symmetrical discharge fine sand of valve, be capable of achieving the stepless of bearing and turn down.
Description
Technical field
The present invention relates to a kind of device for progressively turning down height of support, and in particular to a kind of steel trussed girder suspension bridge construction time by
The device of the low stiff girder temporary support height of step.
Background technology
Suspension bridge is across a kind of maximum bridge type of ability.China's landforms are complicated, and river valley gathers, and has greatly to Longspan Bridge
Large span suspension bridge construction also achieves huge progress over amount demand, and nearly 30 years.
Suspension bridge is made up of the component such as anchorage, bridge tower, main cable saddle, scattered cable saddle, main push-towing rope, cord clip, suspension rod and stiff girder.Construction
Sequentially it is usually：Construction anchorage and bridge tower → installation main cable saddle and scattered cable saddle → erection main push-towing rope → installation cord clip and suspension rod → lifting
Stiff girder.Stiff girder has two kinds of common forms：Steel box-girder and steel truss girder.
For steel box-girder suspension bridge, deck paving is laid on orthotropic top board.Every linear meter(lin.m.) weight of deck paving is remote
Less than every linear meter(lin.m.) weight of steel box-girder, deck paving will not cause stiff girder than larger vertical displacement, therefore be hung in steel box-girder
Just the permanent bearing of formula can be rectified with mounting rail after the completion of dress.
For steel trussed girder suspension bridge, steel bridge deck (orthotropic plate) or concrete bridge deck need to be laid on steel truss girder
Plate, then lays deck paving on floorings.Steel bridge deck is generally slightly smaller than steel truss girder per linear meter(lin.m.) weight per linear meter(lin.m.) weight, or
Both are quite.Per linear meter(lin.m.) weight more than the every linear meter(lin.m.) weight of steel truss girder, the former is usually 2~3 times of the latter to concrete slab.Steel
After the completion of trusses lifting, its absolute altitude is more than bridge completion state designed elevation；Treat floorings install and deck paving after the completion of, steel truss girder
Absolute altitude can just be reduced to bridge completion state designed elevation.Installed with during deck paving in floorings, steel truss girder absolute altitude progressively drops
It is low.Face, it is necessary to be installed in beam-ends after the completion of steel truss girder lifting to prevent the formal bearing in this work progress to be damaged
When bearing, after after floorings installation with formal bearing replace temporary support.The height of construction time temporary support need to be more than into
The height of the formal bearing of bridge like state.If the height of temporary support is equal to the height of formal bearing, steel truss beam end beam section is online
Knuckle will be produced in shape, it is also unfavorable to steel truss beam stress.With the installation of floorings, steel truss girder absolute altitude is gradually reduced, it is necessary to will
Temporary support is progressively turned down.If do not turned down, steel truss beam end beam section will produce reverse knuckle on linear, to steel truss beam stress
Also it is unfavorable.
For turning down temporary support highly, the more commonly used method is：Install temporary support when with some cushion blocks by its
It is padded；When need to reduce height, with jack by steel truss beam-ends jack-up, part cushion block is taken out, then put down steel truss beam-ends.It is this
Method has following some deficiency：
(1) it is inconvenient to construct, and process is cumbersome, influences the duration；
(2) with jack by steel truss beam-ends jack-up during, it is unfavorable to steel girder member bar stress.
(3) height turned down is limited by cushion block height, it is impossible to realize stepless turning down.
In order to overcome above-mentioned deficiency, a kind of device that easily can progressively turn down temporary support height need to be developed.
The content of the invention
The temporary support height method for turning down sound traditional the invention aims to overcome the shortcomings of suspension bridge, there is provided one
Kind of simple, easy to process, effect is significant the temporary support of design highly turns down device, using the fine sand in the husky groove in bearing lower section by
Step discharge, can gradually reduce height of support.
The technical solution adopted by the present invention is：A kind of device for progressively turning down suspension bridge construction phase temporary support height, bag
Include bearing top board, base-plate, husky groove, fine sand and valve；
The bearing top board is bolted below steel truss girder lower boom, and bearing top board is arranged below bearing rubber
Layer, bearing rubber layer is arranged below base-plate；
The husky groove is to be surrounded to be located in husky trough floor by husky groove side plate four sides, forms a top-open structure, husky groove
Fine sand is inside provided with, the base-plate is located on the top surface of fine sand, Internal periphery and the periphery of base-plate of husky groove side plate are left
Gap, husky groove side plate is provided with the valve for fine sand to be discharged；
The husky trough floor is placed on bridge tower sill top surface, and is bolted with it, the thickness of the fine sand with
Husky bottom land plate thickness sum is exactly that bearing needs padded height.
Preferably, the Internal periphery of the husky groove side plate is 1~2mm with the gap on the periphery of base-plate, it is ensured that bearing
Base plate can freely decline in husky groove.
Preferably, the valve quantity is multiple, husky groove side plate bottom position is arranged symmetrically in.
Sand groove shape of the invention determines according to base-plate shape, by base-plate outline to 1~2mm of external expansion, i.e.,
It is husky groove in-profile.Husky groove side plate is used for cuff fine sand, and undertakes the lateral pressure that bearing compression fine sand causes, and need to have foot
Enough strength and stiffness.
Fine sand particle of the present invention is as far as possible small, is easy to be discharged from sand discharge valve.Fine sand original depth (undertake abutment pressure it
Before) the fine sand decrement that need to cause comprising abutment pressure, can determine according to calculating.
The present invention enables fine sand to undertake the vertical pressure that bearing is transmitted with husky groove cuff fine sand.By valve by fine sand
Discharge, is capable of achieving the stepless of height of support and turns down.When height of support is reduced to specified altitude assignment, valve is closed.
Beneficial effect
" a kind of device for progressively turning down suspension bridge construction phase temporary support height " of the invention has following excellent performance：
(1) present invention is discharged fine sand using valve, is capable of achieving the stepless of height of support and is turned down.
(2) bearing turn down operation process is simple and convenient, eliminates the mistake of the utilization jack jacking stiff girder of conventional method
Journey.
(3) valve quantity of the present invention is more than one, and is arranged symmetrically in husky groove outside, is capable of achieving multiple valve and synchronously arranges
It is husky, it is to avoid the inclination of bearing.
Brief description of the drawings
Fig. 1 is the stereogram of apparatus of the present invention；
Fig. 2 is the side view of apparatus of the present invention；
Fig. 3 is the top view of apparatus of the present invention；
Have in figure：Steel truss girder lower boom 1；Bearing top board 2；Bearing rubber layer 3；Base-plate 4；Husky groove side plate 5；Husky bottom land
Plate 6；Valve 7；Fine sand 8；Bridge tower sill 9.
Specific embodiment
Further the present invention will be described with reference to the accompanying drawings and detailed description.
A kind of as Figure 1-3, device for progressively turning down suspension bridge construction phase temporary support height, including bearing top board 2,
Base-plate 4, husky groove, fine sand 8 and valve 7；
The bearing top board 2 is bolted below steel truss girder lower boom 1, and bearing top board 2 is arranged below bearing
Rubber layer 3, bearing rubber layer 3 is arranged below base-plate 4；
The husky groove is to be surrounded to be located in husky trough floor 6 by the husky four sides of groove side plate 5, forms a top-open structure, husky
Fine sand 8 is provided with groove, the base-plate 4 is located on the top surface of fine sand 8, the Internal periphery of husky groove side plate 5 and the week of base-plate 4
While leaving 1~2mm gaps, husky groove side plate 5 is provided with the valve 7 for fine sand 8 to be discharged；
The husky trough floor 6 is placed on the top surface of bridge tower sill 9, and is bolted with it, the thickness of the fine sand 8
It is exactly that bearing needs padded height with the thickness sum of husky trough floor 6.
The fine sand decrement that the original depth (before undertaking abutment pressure) of the fine sand 8 need to cause comprising abutment pressure,
Can determine according to calculating.Fine sand 8 is subject to the Confinement effect of husky groove side plate 5, can undertake the vertical pressure of the transmission of base-plate 4.
The quantity of the valve 7 is more than one, is arranged symmetrically in the outside of husky groove side plate 5 near bottom position.In branch seat height
When degree needs to reduce, open valve 7 and discharge fine sand, be capable of achieving the stepless of height of support and turn down.Treat that bearing is reduced to and specify height
When spending, valve 7 is closed.As long as synchronous open valve, it is possible to symmetrically discharges fine sand, it is to avoid base-plate 4 is inclined.
Embodiments of the present invention are described in detail above in association with accompanying drawing, but the present invention is not limited to described reality
Apply mode.For one of ordinary skill in the art, in the range of principle of the invention and technological thought, to these implementations
Mode carries out implementation method and carries out various changes, modification, replacement and deformation still falling within protection scope of the present invention.
Claims (3)
1. a kind of device for progressively turning down suspension bridge construction phase temporary support height, it is characterised in that：Including bearing top board, bearing
Base plate, husky groove, fine sand and valve；
The bearing top board is bolted below steel truss girder lower boom, and bearing top board is arranged below bearing rubber layer,
Bearing rubber layer is arranged below base-plate；
The husky groove is to be surrounded to be located in husky trough floor by husky groove side plate four sides, forms a top-open structure, is set in husky groove
There is fine sand, the base-plate is located on the top surface of fine sand, the Internal periphery of husky groove side plate leaves gap with the periphery of base-plate,
Husky groove side plate is provided with the valve for fine sand to be discharged；
The husky trough floor is placed on bridge tower sill top surface, and is bolted with it, thickness and the sand groove of the fine sand
Base plate thickness sum is exactly that bearing needs padded height.
2. a kind of device for progressively turning down suspension bridge construction phase temporary support height according to claim 1, its feature exists
In：The Internal periphery of the husky groove side plate is 1 ~ 2mm with the gap on the periphery of base-plate.
3. a kind of device for progressively turning down suspension bridge construction phase temporary support height according to claim 1, its feature exists
In：The valve quantity is multiple, is arranged symmetrically in husky groove side plate bottom position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047470.7A CN106812068A (en) | 2017-01-22 | 2017-01-22 | A kind of device for progressively turning down suspension bridge construction phase temporary support height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047470.7A CN106812068A (en) | 2017-01-22 | 2017-01-22 | A kind of device for progressively turning down suspension bridge construction phase temporary support height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106812068A true CN106812068A (en) | 2017-06-09 |
Family
ID=59111447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710047470.7A Pending CN106812068A (en) | 2017-01-22 | 2017-01-22 | A kind of device for progressively turning down suspension bridge construction phase temporary support height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106812068A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109906814A (en) * | 2019-04-12 | 2019-06-21 | 宁波植物园景区管理有限公司 | Cultivation box in a kind of raw xylophyta water of sponge urban rainwater garden water-wet |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001262515A (en) * | 2000-03-23 | 2001-09-26 | Taisei Corp | Method for constructing temporary bearing |
| KR20070016378A (en) * | 2005-08-03 | 2007-02-08 | 명보산공 주식회사 | Method of constructing temporary bridge and Rotation Apparatus therefor |
| CN201087322Y (en) * | 2007-07-26 | 2008-07-16 | 中铁二局股份有限公司 | Large tonnage box beam construction temporary support saddle |
| CN101424128A (en) * | 2008-12-12 | 2009-05-06 | 中建三局建设工程股份有限公司 | Civil engineering construction flask device |
| KR20100073881A (en) * | 2008-12-23 | 2010-07-01 | (주)씨씨엘 코리아 | Dummy bearing for bridge using sand and upper structure of bridge supporting method thterewith |
| CN202055180U (en) * | 2011-05-10 | 2011-11-30 | 天津城市建设学院 | Rack unloading sand box of cast-in-site bridge |
| CN202466416U (en) * | 2012-01-04 | 2012-10-03 | 广东中匠工程建设有限公司 | Force-bearing type settling sand barrel |
| CN204185774U (en) * | 2014-08-29 | 2015-03-04 | 中交第二航务工程局有限公司 | Steel pipe support relief sand jack |
| CN205557315U (en) * | 2016-04-30 | 2016-09-07 | 湖北益通建设股份有限公司 | Pier cap top temporary support |
-
2017
- 2017-01-22 CN CN201710047470.7A patent/CN106812068A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001262515A (en) * | 2000-03-23 | 2001-09-26 | Taisei Corp | Method for constructing temporary bearing |
| KR20070016378A (en) * | 2005-08-03 | 2007-02-08 | 명보산공 주식회사 | Method of constructing temporary bridge and Rotation Apparatus therefor |
| CN201087322Y (en) * | 2007-07-26 | 2008-07-16 | 中铁二局股份有限公司 | Large tonnage box beam construction temporary support saddle |
| CN101424128A (en) * | 2008-12-12 | 2009-05-06 | 中建三局建设工程股份有限公司 | Civil engineering construction flask device |
| KR20100073881A (en) * | 2008-12-23 | 2010-07-01 | (주)씨씨엘 코리아 | Dummy bearing for bridge using sand and upper structure of bridge supporting method thterewith |
| CN202055180U (en) * | 2011-05-10 | 2011-11-30 | 天津城市建设学院 | Rack unloading sand box of cast-in-site bridge |
| CN202466416U (en) * | 2012-01-04 | 2012-10-03 | 广东中匠工程建设有限公司 | Force-bearing type settling sand barrel |
| CN204185774U (en) * | 2014-08-29 | 2015-03-04 | 中交第二航务工程局有限公司 | Steel pipe support relief sand jack |
| CN205557315U (en) * | 2016-04-30 | 2016-09-07 | 湖北益通建设股份有限公司 | Pier cap top temporary support |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109906814A (en) * | 2019-04-12 | 2019-06-21 | 宁波植物园景区管理有限公司 | Cultivation box in a kind of raw xylophyta water of sponge urban rainwater garden water-wet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103669114B (en) | Ballast bed base prefabricated slab and application thereof | |
| CN102767137B (en) | Anti-seismic large deformation expansion device of comb plate | |
| CN108130833A (en) | The method for correcting error of sedimentation offset non-fragment orbit | |
| CN108951322A (en) | A kind of ballastless track structure sedimentation lifting apparatus and its lifting method | |
| CN206886602U (en) | A kind of highway bridge construction drilling platform | |
| CN209338921U (en) | A kind of high-speed railway subgrade differential settlement reinforcing lifting leveling structure | |
| CN107245912A (en) | A kind of Foam lightweight soil railway bed structure and engineering method | |
| CN105239502B (en) | Uniform force transmission device used for bridge support and installation method of uniform force transmission device | |
| CN105297620B (en) | Steel plate spherical crown polymer mortar structure support and construction method thereof | |
| CN110080454A (en) | LPM light filling body Construction of Cast-in-situ Concrete Hollow | |
| CN204112169U (en) | City rail system | |
| CN106812068A (en) | A kind of device for progressively turning down suspension bridge construction phase temporary support height | |
| CN106522036A (en) | Adjustable type ballastless track structure, ballastless track and adjustment method | |
| CN206245730U (en) | A kind of cast-in-place pitched roof double template structure | |
| CN109750561B (en) | Structure for preventing slurry pumping on surface layer of ballastless track bed plate foundation bed and construction method | |
| CN108571330A (en) | A method of processing subway bottom plate rear pouring tape percolating water | |
| CN208586468U (en) | The secondary scalable general railway roadbed of pouring type | |
| JP2010229696A (en) | Repair method for laborsaving track | |
| CN208685404U (en) | A kind of improvement type wooden footway paving structure | |
| CN108560330A (en) | The scalable general railway roadbed of secondary pouring type and its construction method | |
| CN106812065A (en) | A kind of concrete freely-supported pre-stressed box girder construction process | |
| CN207919383U (en) | A kind of hanging basket main truss front fulcrum height tunable arrangement | |
| CN110144767A (en) | Help broad way based structures and construction method | |
| CN104047213A (en) | Pavement repairing method capable of resolving settlement velocity difference between hard soil and soft soil | |
| CN209066195U (en) | Railway high-filled embankment vertically in iris type box-structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170609 |