CN109680618A - Steel box-girder entirety fall girder apparatus and its fall beam method - Google Patents
Steel box-girder entirety fall girder apparatus and its fall beam method Download PDFInfo
- Publication number
- CN109680618A CN109680618A CN201910084013.4A CN201910084013A CN109680618A CN 109680618 A CN109680618 A CN 109680618A CN 201910084013 A CN201910084013 A CN 201910084013A CN 109680618 A CN109680618 A CN 109680618A
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- Prior art keywords
- girder
- steel box
- steel
- jack
- fall
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 109
- 239000010959 steel Substances 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005086 pumping Methods 0.000 claims abstract description 20
- 239000000725 suspension Substances 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000003447 ipsilateral effect Effects 0.000 claims abstract description 4
- 210000005069 ears Anatomy 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 12
- 230000001737 promoting effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
Landscapes
- 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 steel box-girder entirety fall girder apparatus and its fall beam method, the device include two groups be respectively provided at steel box-girder both ends fall beam reaction frame, it includes steel pipe pier, equalizer bar and long beam that every group, which falls beam reaction frame,；It is fallen in beam reaction frame at every group, steel pipe pier be located at steel box-girder two sides and every side it is equal there are two, equalizer bar is across on two ipsilateral steel pipe piers and being distributed in steel box-girder two sides, long beam is on the equalizer bar in steel box-girder two sides, by anchorage installation, there are two the jack of hydraulic-driven on long beam, jack is connect by steel strand wires with the lifting lug of underlying steel box-girder, and two jack are driven by the same pumping plant；All on steel box-girder to promote the range sensor being equipped at suspension centre for detecting height, two groups of pumping plants fallen on beam reaction frame are controlled by the same control system, and range sensor is connected to control system, and control system is connected to remote monitoring system.Construction efficiency of the present invention is high, keeps steady under steel box-girder, securely and reliably.
Description
Technical field
The invention belongs to sciences of bridge building to apply technical field, and in particular to a kind of steel box-girder entirety fall girder apparatus and its fall beam side
Method.
Background technique
Bridge using pushing tow and dilatory equal constructions across after the facilities such as existing highway, railway, river, generally with it is predetermined
Position can have difference in height, it is therefore desirable to carry out falling beam construction, to fall on predetermined position.Currently, steel box-girder is carried out falling beam and be applied
It is working hour, general to use the construction technology that jack is set at concrete pier and steel pipe pier is successively cut off to decline, the technology
Have the following deficiencies: that 1) jack is on concrete pier, when construction can have an impact concrete bridge pier structure；2) jack
Fall Liang Sudu, synchronism not can guarantee, construct it is unreliable；3) falling joist steel pipe need to be used alternatingly, and construction efficiency is low.
Summary of the invention
The object of the present invention is to provide a kind of steel box-girder entirety fall girder apparatus and its beam method is fallen, construction efficiency of the present invention
Height is kept steady under steel box-girder, securely and reliably.
The technical scheme adopted by the invention is that:
A kind of steel box-girder entirety fall girder apparatus, including two groups be respectively provided at steel box-girder both ends fall beam reaction frame, every group falls
Beam reaction frame includes steel pipe pier, equalizer bar and long beam；Fallen in beam reaction frame at every group, steel pipe pier be located at steel box-girder two sides and
There are two every side is equal, equalizer bar is across on two ipsilateral steel pipe piers and steel box-girder two sides are distributed in, and long beam is across in steel
On the equalizer bar of box beam two sides, by anchorage installation there are two the jack of hydraulic-driven on long beam, jack passes through steel
Twisted wire is connect with the lifting lug of underlying steel box-girder, and two jack are driven by the same pumping plant；All promotions on steel box-girder
The range sensor for detecting height is equipped at suspension centre, two groups of pumping plants fallen on beam reaction frame are by the same control system control
System, range sensor are connected to control system, and control system is connected to remote monitoring system.
Further, lifting lug lower weld is fixed on the web of steel box-girder, top is equipped with ears piece, and steel strand wires lower end is solid
Surely have a connecting cylinder, connecting cylinder lower end is equipped with ears piece, the ears piece on lifting lug top be located between the ears piece of connecting cylinder lower end and
The ears piece of the two is cooperatively connected by connecting shaft.
Further, the two sides of ears on piece and the connecting hole of connecting shaft cooperation are equipped with stiffening plate.
Further, one-way hydraulic lock and stall proof descending mechanism are equipped on all jack.
Further, it is equipped with oil pressure sensor on all jack, oil pressure sensor is connected to control system.
Further, the promotion speed of jack is by the proportional valve control in pumping plant on proportional hydraulic oil circuit.
It is a kind of that beam method is fallen based on above-mentioned steel box-girder entirety fall girder apparatus, it is characterised in that: including step, 1) steel box-girder
After the completion of pushing tow, steel box-girder is integrally fallen on pushing tow falsework, is cut off nose girder, is removed incremental launching device；2) at steel box-girder both ends
It is respectively set two groups and falls beam reaction frame, jack is connect by steel strand wires with the lifting lug of underlying steel box-girder；3) it controls
System controls the starting of two pumps station, and steel box-girder is integrally promoted a stroke by steel strand wires, first cuts off certain altitude by jack
Pushing tow falsework, then jack transfer a stroke；4) step 3) is repeated, until steel box-girder is transferred to permanent support
On；5) steel box-girder axis and absolute altitude are adjusted, beam completion is entirely fallen.
The beneficial effects of the present invention are:
Device construction efficiency is high --- after the horizontal pushing tow of steel box-girder is to predetermined mileage, using falling beam counter-force bracket and thousand
Jin top is transferred to designed elevation by steel box-girder；The device makes to keep steady under steel box-girder --- and control system is controlled by pumping plant
Jack integrating action, when range sensor reflects the promotion suspension centre on steel box-girder there are when difference in height, control system passes through
Pumping plant controls corresponding jack movement, realizes that all positions for promoting suspension centre are synchronous；The equipment safety is reliable --- and system processed is logical
The information for crossing range sensor and pumping plant obtains the aerial statue information of steel box-girder, and control system is determined by aerial statue information
The next step of pumping plant acts, and whole process is remotely monitored by remote monitoring system.
Detailed description of the invention
Fig. 1 is the front view of the embodiment of the present invention.
Fig. 2 is the side view of the embodiment of the present invention.
Fig. 3 is the connection schematic diagram of steel box-girder and steel strand wires in the embodiment of the present invention.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is the process chart of the embodiment of the present invention.
In figure: 1- steel box-girder；2- jack；3- anchorage；4- long beam；5- equalizer bar；6- steel pipe pier；7- pushing tow is interim
Bracket；8- pumping plant；9- lifting lug；10- steel strand wires；11- connecting cylinder.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, a kind of steel box-girder entirety fall girder apparatus is respectively provided at falling for 1 both ends of steel box-girder including two groups
Beam reaction frame, it includes steel pipe pier 6, equalizer bar 5 and long beam 4 that every group, which falls beam reaction frame,；It is fallen in beam reaction frame at every group, steel pipe
Pier 6 be located at 1 two sides of steel box-girder and every side it is equal there are two, equalizer bar 5 is across on two ipsilateral steel pipe piers 6 and being distributed in steel case
1 two sides of beam, long beam 4 is on the equalizer bar 5 in 1 two sides of steel box-girder, and by the installation of anchorage 3, there are two liquid on long beam 4
The jack 2 of driving is pressed, jack 2 is connect by steel strand wires 10 with the lifting lug 9 of underlying steel box-girder 1, two jack 2
It is driven by the same pumping plant 8；All promoted is equipped with range sensor for detecting height on steel box-girder 1 at suspension centres, and two groups
The pumping plant 8 fallen on beam reaction frame is controlled by the same control system, and range sensor is connected to control system, control system connection
To remote monitoring system.Device construction efficiency is high --- after the horizontal pushing tow of steel box-girder 1 is to predetermined mileage, using falling Liang Fanli
Bracket and jack 2 transfer steel box-girder 1 to designed elevation；The device makes to keep steady under steel box-girder 1 --- control system
Jack integrating action is controlled by pumping plant 8, there are differences in height when range sensor reflects the promotion suspension centre on steel box-girder 1
When, control system controls corresponding jack 2 by pumping plant 8 and acts, and realizes that all positions for promoting suspension centre are synchronous；The equipment safety
Reliably --- system processed obtains the aerial statue information of steel box-girder 1 by the information of range sensor and pumping plant 8, and control system is logical
The next step movement that aerial statue information determines pumping plant 8 is crossed, whole process is remotely monitored by remote monitoring system.
As shown in Figure 3 and Figure 4, in the present embodiment, 9 lower weld of lifting lug is fixed on the web of steel box-girder 1, top is set
There is ears piece, 10 lower end of steel strand wires is fixed with connecting cylinder 11, and 11 lower end of connecting cylinder is equipped with ears piece, the ears piece position on lifting lug top
Between the ears piece of 11 lower end of connecting cylinder and the ears piece of the two is cooperatively connected by connecting shaft 12.
As shown in figure 3, in the present embodiment, the two sides for the connecting hole that ears on piece and connecting shaft 12 cooperate are equipped with reinforcement
Plate.
In the present embodiment, one-way hydraulic lock and stall proof descending mechanism (balanced valve) are equipped on all jack 2.It is single
It can ensure that automatic synchronization is self-locking when accidental power failure, pipeline rupture occurs in construction to hydraulic lock and stall proof descending mechanism, steel case
Beam 1 is smoothly parked in a certain height and will not drop, and improves construction safety.
In the present embodiment, it is equipped with oil pressure sensor on all jack 2, oil pressure sensor is connected to control system.
Control system has by each load change situation for promoting suspension centre of oil pressure sensor real-time monitoring if promoting the load of suspension centre
Abnormal mutation, then control system can control the shutdown of jack 2 and signal of alarming, and improve construction safety.
In the present embodiment, the promotion speed (maximum lift speed is not more than 10 ms/h) of jack 2 is by pumping plant 8
Proportional valve control on proportional hydraulic oil circuit.
The course of work of the present embodiment is: 1) after the completion of 1 pushing tow of steel box-girder, steel box-girder 1 is whole to fall in pushing tow falsework 7
On, it cuts off nose girder, remove incremental launching device；2) two groups are respectively set at 1 both ends of steel box-girder and fall beam reaction frame, jack 2 is passed through
Steel strand wires 10 are connect with the lifting lug 9 of underlying steel box-girder 1；3) control system control two pumps station 8 starts, and jack 2 is logical
Steel strand wires 10 are crossed by one stroke of whole promotion of steel box-girder 1, the pushing tow falsework 7 of 500mm are first cut off, then under jack 2
Put a stroke；4) step 3) is repeated, until steel box-girder 1 is transferred on permanent support；5) 1 axis of steel box-girder and mark are adjusted
Height entirely falls beam completion.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (7)
1. a kind of steel box-girder entirety fall girder apparatus, it is characterised in that: including two groups be respectively provided at steel box-girder both ends fall Liang Fanli
Frame, it includes steel pipe pier, equalizer bar and long beam that every group, which falls beam reaction frame,；It is fallen in beam reaction frame at every group, steel pipe pier is located at steel
Box beam two sides and every side it is equal there are two, equalizer bar is long horizontal across on two ipsilateral steel pipe piers and being distributed in steel box-girder two sides
Beam on the equalizer bar in steel box-girder two sides, on long beam by anchorage installation there are two hydraulic-driven jack, thousand
Jin top is connect by steel strand wires with the lifting lug of underlying steel box-girder, and two jack are driven by the same pumping plant；Steel box-girder
The range sensor for detecting height is equipped at upper all promotion suspension centres, two groups of pumping plants fallen on beam reaction frame are by same
Control system control, range sensor are connected to control system, and control system is connected to remote monitoring system.
2. steel box-girder entirety fall girder apparatus as described in claim 1, it is characterised in that: lifting lug lower weld is fixed on steel box-girder
Web on, top be equipped with ears piece, steel strand wires lower end is fixed with connecting cylinder, and connecting cylinder lower end is equipped with ears piece, lifting lug top
Ears piece be located between the ears piece of connecting cylinder lower end and the ears piece of the two pass through connecting shaft be cooperatively connected.
3. steel box-girder entirety fall girder apparatus as claimed in claim 2, it is characterised in that: the company of ears on piece and connecting shaft cooperation
The two sides for connecing hole are equipped with stiffening plate.
4. steel box-girder entirety fall girder apparatus as described in claim 1, it is characterised in that: be equipped with unidirectional liquid on all jack
Pressure lock and stall proof descending mechanism.
5. steel box-girder entirety fall girder apparatus as described in claim 1, it is characterised in that: be equipped with oil pressure biography on all jack
Sensor, oil pressure sensor are connected to control system.
6. steel box-girder entirety fall girder apparatus as described in claim 1, it is characterised in that: the promotion speed of jack is by pumping plant
Proportional valve control on proportional hydraulic oil circuit.
7. a kind of fall beam method based on any steel box-girder entirety fall girder apparatus of claim 1 to 6, it is characterised in that: packet
Include step, 1) after the completion of steel box-girder pushing tow, steel box-girder is integrally fallen on pushing tow falsework, is cut off nose girder, is removed incremental launching device；
2) two groups are respectively set at steel box-girder both ends and fall beam reaction frame, by jack hanging by steel strand wires and underlying steel box-girder
Ear connection；3) steel box-girder is integrally promoted a stroke by steel strand wires by the starting of control system control two pumps station, jack, first
The pushing tow falsework of certain altitude is cut off, then jack transfers a stroke；4) step 3) is repeated, until will be under steel box-girder
It is put on permanent support；5) steel box-girder axis and absolute altitude are adjusted, beam completion is entirely fallen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084013.4A CN109680618A (en) | 2019-01-28 | 2019-01-28 | Steel box-girder entirety fall girder apparatus and its fall beam method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910084013.4A CN109680618A (en) | 2019-01-28 | 2019-01-28 | Steel box-girder entirety fall girder apparatus and its fall beam method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109680618A true CN109680618A (en) | 2019-04-26 |
Family
ID=66194993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910084013.4A Pending CN109680618A (en) | 2019-01-28 | 2019-01-28 | Steel box-girder entirety fall girder apparatus and its fall beam method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109680618A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813834A (en) * | 2020-12-31 | 2021-05-18 | 中铁八局集团昆明铁路建设有限公司 | Beam piece mounting system and mounting method |
| CN117536118A (en) * | 2023-11-28 | 2024-02-09 | 保利长大工程有限公司 | Beam Duan Zhineng hoisting method for bridge deck crane system and bridge deck crane system |
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| CN117536118A (en) * | 2023-11-28 | 2024-02-09 | 保利长大工程有限公司 | Beam Duan Zhineng hoisting method for bridge deck crane system and bridge deck crane system |
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