CN109868749A - A kind of steel truss girder hole-specifically sets up closure mouth wind-resistance locking device and application method - Google Patents
A kind of steel truss girder hole-specifically sets up closure mouth wind-resistance locking device and application method Download PDFInfo
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- CN109868749A CN109868749A CN201910198903.8A CN201910198903A CN109868749A CN 109868749 A CN109868749 A CN 109868749A CN 201910198903 A CN201910198903 A CN 201910198903A CN 109868749 A CN109868749 A CN 109868749A
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Abstract
The invention discloses a kind of steel truss girders hole-specifically to set up closure mouth wind-resistance locking device and method, and the A for being used to have set up is across steel truss girder and across the steel truss girder carry out temporary locking of B to be set up comprising two telescopic arms, rear cross beam and two top-pushing mechanisms；Two telescopic arms are respectively arranged the brace two sides in A across steel truss girder along direction across bridge, and telescopic arm includes outer sleeve, inner sleeve, driving mechanism；Outer sleeve is placed in A of the A across steel truss girder across on lower boom；Inner sleeve portion is located in outer sleeve；Driving mechanism is set in outer sleeve and is connected with inner sleeve, for driving inner sleeve along vertical bridge Xiang Yundong；Rear cross beam connects two outer sleeves；It is formed between the inner sleeve of two telescopic arms for accommodating accommodating area of B of the B across steel truss girder across lower boom；Two top-pushing mechanism one end are individually fixed on two inner sleeves and are located at outside outer sleeve, and the other end can be extended or be bounced back towards accommodating area along direction across bridge.The present invention whole wind loading rating during steel truss erection can be improved.
Description
Technical field
The present invention relates to science of bridge building superstructure steel truss girder hole-specifically Construction Techniques for Erection fields, and in particular to a kind of steel truss
Beam hole-specifically sets up closure mouth wind-resistance locking device and application method.
Background technique
In existing highway bridge engineering Superstructure Construction, hole-specifically erection method is such as the multi-joint longspan steel truss girder of general multispan
Under: longspan steel truss girder by beam transportation vehicle vertical shift, it is traversing go to river harbour to steel truss girder after, transport is to frame aperture position, in one
It is first directly set up across steel truss girder using large-scale floating crane, except head across in addition to remaining across steel truss girder assist hole-specifically pacifying by diamond shape girder steel hanger
Dress completes a steel truss girder until setting up.
However, annual March~October, bridge site region takes place frequently unpredictalbe hurricane or squall line wind, steel truss erection rank
10 years one highest wind velocities met of section reach 39.25m/s, on the one hand, superpower squall line wind once damaged steel truss girder and goes to river harbour
And large-scale floating crane；On the other hand, the steel truss girder wait set up close up with the steel truss girder set up when docking process, and the two is closed up
Wind resistance is weak, stability is poor, and it is low to close up docking safety.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of steel truss girders hole-specifically to set up closure mouth
Wind-resistance locking device, whole wind loading rating, guarantees safety of setting a roof beam in place during hurricane or squall line wind during steel truss erection can be improved.
To achieve the above objectives, the technical solution adopted by the present invention is that: a kind of steel truss girder hole-specifically sets up closure mouth wind resistance lock
Determine device, the A for being used to have set up is across steel truss girder and across the steel truss girder carry out temporary locking of B to be set up comprising:
Two telescopic arms are used to be respectively arranged the brace two sides in A across steel truss girder, the telescopic arm packet along direction across bridge
It includes:
Outer sleeve is used to be placed in A of the A across steel truss girder across lower boom；
Inner sleeve, part are located in the outer sleeve；
Driving mechanism is set in outer sleeve and is connected with inner sleeve, is used to drive the inner sleeve along vertical bridge Xiang Yun
It is dynamic；
Rear cross beam connects two outer sleeves；
It is formed between the inner sleeve of two telescopic arms for accommodating accommodating area of B of the B across steel truss girder across lower boom；
Two top-pushing mechanisms, two described top-pushing mechanism one end are individually fixed on two inner sleeves and are located at outer sleeve
Outside, the other end can be extended or be bounced back towards accommodating area along direction across bridge.
Further, it is also connected by connection structure between two outer sleeves, the rear cross beam and connection structure interval are arranged.
Further, counter-force seat is equipped in the outer sleeve, the driving mechanism is connected with counter-force seat.
Further, the top-pushing mechanism uses jack, and the jack is connected with inner sleeve, and its power output end
For supporting B across lower boom.
Further, top surface of the one end of the inner sleeve far from outer sleeve from A across lower boom extends and is formed to bottom surface
One extension, the top-pushing mechanism are connected with extension, and be located at A across the top surface of lower boom below.
Further, offered respectively on the outer sleeve and inner sleeve the oil pipe for drawing driving mechanism hole and
For drawing the hole of the oil pipe of top-pushing mechanism.
Further, the wind-resistance locking device further includes control system, the control system and driving mechanism and pushing tow
Mechanism is connected, and for controlling driving mechanism and top-pushing mechanism executes corresponding actions respectively.
The present invention also provides a kind of application methods of wind-resistance locking device as described above, include the following steps:
In the assembled wind-resistance locking device in A across steel truss girder closure mouth end；
B is lifted by crane to align across steel truss girder to across the steel truss girder closure mouth of B and across the steel truss girder closure mouth of A；
Inner sleeve to two top-pushing mechanisms are driven to be located at two sides of the B across lower boom direction across bridge by driving mechanism；
Start two top-pushing mechanisms and be held in two sides of the B across lower boom direction across bridge respectively to it, completes temporary locking.
Further, further include following steps after completing temporary locking:
When completing B across steel truss girder and after A across steel truss girder closure, releasing temporary locking.
Further, the step of B is aligned across steel truss girder to across the steel truss girder closure mouth of B and across the steel truss girder closure mouth of A is being lifted by crane
In, further include the steps that adjusting B across steel truss girder closure mouth position by two top-pushing mechanisms.
Compared with the prior art, the advantages of the present invention are as follows:
(1) using wind-resistance locking device can with across the steel truss girder closure mouth of temporary locking A and across the steel truss girder closure mouth of B, make A across
Steel truss girder and B are linked together across steel truss girder, and raising whole wind loading rating during setting a roof beam in place guarantees B across steel truss girder, diamond shape girder steel hanger
Etc. structures safety, weld stable work surface be provided for across the steel truss girder lower boom of A and across the steel truss girder lower boom of the B mouth that joins the two sections of a bridge, etc.
(2) a kind of steel truss girder of the invention hole-specifically sets up closure mouth wind-resistance locking device and is provided simultaneously with adjustment B across steel truss girder
To bit function, there is no need to the thrustor of lower boom closure mouth adjustment is in addition arranged for lower boom closure.
(3) it is efficient hole-specifically to set up closure mouth wind resistance locking means method safety to a kind of steel truss girder of the invention, is not required to additional
Increase excessive parts, structure is simple, convenient to use.
Detailed description of the invention
Fig. 1 is wind-resistance locking device elevation provided in an embodiment of the present invention；
Fig. 2 is wind-resistance locking device plan view provided in an embodiment of the present invention.
In figure: 1, A is across steel truss girder；10, brace；11, A is across lower boom；2, B is across steel truss girder；20, B is across lower boom；3, it stretches
Arm；30, outer sleeve；31, inner sleeve；310, extension；32, driving mechanism；4, rear cross beam；5, accommodating area；6, top-pushing mechanism；7,
Counter-force seat；8, pin shaft；9, connection structure.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to figure 1 and figure 2, the embodiment of the invention provides a kind of steel truss girders hole-specifically to set up closure mouth wind resistance locking dress
It sets, the A for being used to have set up carries out temporary locking, the wind-resistance locking device across steel truss girder 2 across steel truss girder 1 and B to be set up
Including two telescopic arms 3, rear cross beam 4 and two top-pushing mechanisms 6；
Referring to figs. 1 and 2, two telescopic arms 3 are respectively arranged 10 two sides of brace in A across steel truss girder 1 along direction across bridge,
Telescopic arm 3 includes outer sleeve 30, inner sleeve 31 and driving mechanism 32.
Outer sleeve 30 in the present embodiment present it is U-shaped, it is U-shaped list limb be box-structure, by 12~16mm of thickness steel plate weld
It connects, is connected between U-shaped list limb using box-structure connection structure；Outer sleeve 30 is placed in A of the A across steel truss girder 1 across lower boom
On 11,31 one end of inner sleeve is located in outer sleeve 30, and the other end extends to outside outer sleeve 30；Driving mechanism 32 is set to outer sleeve 30
It is interior, and its power output end is connected with inner sleeve 31, and driving mechanism 32 can drive inner sleeve 31 along vertical bridge Xiang Yundong, realize
Inner sleeve 31 is located at the part outside outer sleeve 30 can and court mobile towards the direction close to B of the B across steel truss girder 2 across lower boom 20
Direction far from B of the B across steel truss girder 2 across lower boom 20 is mobile；
Referring to figs. 1 and 2,4 both ends of rear cross beam are separately connected two outer sleeves 30；
It is shown in Figure 2, it is formed between the inner sleeve 31 of two telescopic arms 3 for accommodating B of the B across steel truss girder 2 across lower edge
The accommodating area 5 of bar 20；Two top-pushing mechanisms, 6 one end is individually fixed on two inner sleeves 31 and is located at outside corresponding outer sleeve 30, separately
One end can extend or bounce back towards accommodating area 5 along direction across bridge, in this way when B is located at accommodating area 5 across lower boom 20, two pushers
Structure 6 is extended along direction across bridge and is supported respectively in B across 20 two sides of lower boom, to lock B across lower boom 20.
When installation, outer sleeve 30 and A are closely connected across 1 endpoint node brace of steel truss girder, 10 outer surfaces, and rear cross beam 4 and A are across steel truss
1 endpoint node brace 10 of beam is closely connected, and if any gap, sheet metal pad can be used.
B across steel truss girder by diamond shape girder steel hanger suspending after, can be with across the steel truss girder conjunction of temporary locking A using wind-resistance locking device
Longkou and across the steel truss girder closure mouth of B, are linked together A across steel truss girder across steel truss girder and B, raising whole wind resistance energy during setting a roof beam in place
Power guarantees that B is that across the steel truss girder lower boom of A and across the steel truss girder lower boom of B close across the structures such as steel truss girder, diamond shape girder steel hanger safety
Longkou welding provides stable work surface.
In order to gather materials on the spot, top-pushing mechanism 6 uses jack, and jack is connected with inner sleeve 31, and its power output end
For supporting B across lower boom 20；In the present embodiment, top-pushing mechanism 6 is arranged in inner sleeve 31.It of courses, driving mechanism 32
Jack can also be used.
In the case where not carrying out temporary locking, 31 retracted state of inner sleeve, inner sleeve 31 is located at the one end in 30 outside of outer sleeve not
B is contacted across lower boom 20；In the locked state, B is located at the length in accommodating area 5 across lower boom 20 and is greater than 6 institute of top-pushing mechanism
Using the diameter of jack, it is ensured that the jack can lock B across lower boom 20.
Outer sleeve can be protruded into inner sleeve 31 when lock state when the range of driving mechanism 32 is greater than retracted state
Length in 30.
Referring to figs. 1 and 2, it is also connected by connection structure 9 between two outer sleeves 30, box is used in the present embodiment
The connection structure of structure, rear cross beam 4 and the interval of connection structure 9 are arranged, it is ensured that in this locking device in use, rear cross beam 4 and connection structure 9
Along indulging bridge to being divided into 10 two sides of brace and be held in brace 10.Using brace 10 as load mechanism, pass through rear cross beam 4 and connection
Connecing is 9 to support brace 10, and after locking B is across lower boom 20, if there is high wind conditions, B is produced across lower boom 20 because of strong wind
The power such as raw torsion can be transferred to brace 10, be finally transmitted to A across steel truss girder 1, ensure that in wind-resistance locking device
Safety and stability.
It is shown in Figure 1, counter-force seat 7 is equipped in outer sleeve 30, driving mechanism 32 is connected with counter-force seat 7.Specifically, it drives
The both ends of mechanism 32 are connected with counter-force seat 7 and inner sleeve 31 respectively by pin shaft 8.
Shown in Figure 1, top surface of the one end of inner sleeve 31 far from outer sleeve 30 from A across lower boom 11 extends simultaneously to bottom surface
An extension 310 is formed, top-pushing mechanism 6 is connected with extension 310, and is located at top surface of the A across lower boom 11 or less.
The hole of the oil pipe for drawing driving mechanism 32 is offered on outer sleeve 30 and inner sleeve 31 respectively and for drawing
The hole of the oil pipe of top-pushing mechanism 6 out.
Wind-resistance locking device further includes control system, and control system is connected with driving mechanism 32 and top-pushing mechanism 6, and is used for
Control driving mechanism 32 and top-pushing mechanism 6 execute corresponding actions respectively.
The embodiment of the invention also provides the application methods of above-mentioned wind-resistance locking device, include the following steps:
S1: in A across the closure mouth end assembly wind-resistance locking device of steel truss girder 1, inner sleeve 31 retracts outer sleeve 30 at this time；
S2: diamond shape girder steel hanger is installed across the top boom end of steel truss girder 1 in A, large-scale floating crane ship lifts by crane B across steel truss girder 2
To B across the closure mouth of steel truss girder 2 and A across the closure mouth contraposition of steel truss girder 1；
S3: 31 to two top-pushing mechanism 6 of inner sleeve is driven to be located at B across 20 direction across bridge of lower boom by driving mechanism 32
Two sides；
S4: two top-pushing mechanisms 6 of starting are held in two sides of the B across 20 direction across bridge of lower boom to it respectively, complete temporary locking；
S5: B is welded across the closure mouth of steel truss girder 2 and A across the closure oral area point of steel truss girder 1, when completion B is across steel truss girder 2
After joining the two sections of a bridge, etc with A across steel truss girder 1, temporary locking is released.
In lifting by crane the step of B is aligned across the closure mouth of steel truss girder 2 and A across the closure mouth of steel truss girder 1 across steel truss girder 2 to B, if any
It needs, further includes the steps that adjusting B by two top-pushing mechanisms 6 across the closure of steel truss girder 2 mouth position.Specifically, start top-pushing mechanism
6, the accurate B that adjusts makes itself and A across the closure mouth exactitude position of lower boom 11 across the closure of lower boom 20 mouth position.Therefore, which locks
Determine device and be provided simultaneously with across the steel truss girder lower boom closure of adjustment B to bit function, there is no need to lower boom closure mouth tune is in addition arranged
Whole thrustor.
A kind of steel truss girder of the invention hole-specifically set up closure mouth wind resistance locking means it is safe and efficient, it is extra to be not required to additionally increase
Component, structure is simple, convenient to use.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of steel truss girder hole-specifically sets up closure mouth wind-resistance locking device, the A for being used to have set up is across steel truss girder (1) and to frame
If B across steel truss girder (2) carry out temporary locking, characterized in that it comprises:
Two telescopic arms (3) are used to be respectively arranged brace (10) two sides in A across steel truss girder (1) along direction across bridge, described flexible
Arm (3) includes:
Outer sleeve (30) is used to be placed in A of the A across steel truss girder (1) across lower boom (11)；
Inner sleeve (31), part are located in the outer sleeve (30)；
Driving mechanism (32) is set in outer sleeve (30) and is connected with inner sleeve (31), is used to drive the inner sleeve
(31) along vertical bridge Xiang Yundong；
Rear cross beam (4) connects two outer sleeves (30)；
It is formed between the inner sleeve (31) of two telescopic arms (3) for accommodating B receipts across lower boom (20) of the B across steel truss girder (2)
Hold area (5)；
Two top-pushing mechanisms (6), two described top-pushing mechanism (6) one end are individually fixed on two inner sleeves (31) and are located at outer
Outside, the other end can be extended or be bounced back towards accommodating area (5) along direction across bridge sleeve (30).
2. wind-resistance locking device as described in claim 1, it is characterised in that: also pass through connection between two outer sleeves (30)
It is (9) connection, the rear cross beam (4) and connection structure (9) interval are arranged.
3. wind-resistance locking device as described in claim 1, it is characterised in that: counter-force seat (7) are equipped in the outer sleeve (30),
The driving mechanism (32) is connected with counter-force seat (7).
4. wind-resistance locking device as described in claim 1, it is characterised in that: the top-pushing mechanism (6) uses jack, described
Jack is connected with inner sleeve (31), and its power output end is for supporting B across lower boom (20).
5. wind-resistance locking device as described in claim 1, it is characterised in that: the inner sleeve (31) is far from outer sleeve (30)
One end extends to bottom surface across the top surface of lower boom (11) from A and is formed an extension (310), the top-pushing mechanism (6) and extension
Portion (310) is connected, and is located at top surface of the A across lower boom (11) or less.
6. wind-resistance locking device as described in claim 1, it is characterised in that: divide on the outer sleeve (30) and inner sleeve (31)
The hole of the oil pipe for drawing driving mechanism (32) and the hole of the oil pipe for drawing top-pushing mechanism (6) are not offered.
7. wind-resistance locking device as described in claim 1, it is characterised in that: the wind-resistance locking device further includes control system
System, the control system are connected with driving mechanism (32) and top-pushing mechanism (6), and for controlling driving mechanism (32) and pusher
Structure (6) executes corresponding actions respectively.
8. a kind of application method of wind-resistance locking device as described in claim 1, which comprises the steps of:
In A across the assembled wind-resistance locking device in steel truss girder (1) closure mouth end；
It lifts by crane B and is aligned across steel truss girder (2) closure mouth and A across steel truss girder (1) closure mouth across steel truss girder (2) to B；
Inner sleeve (31) to two top-pushing mechanisms (6) are driven to be located at B across lower boom (20) cross by driving mechanism (32)
Bridge to two sides；
Start two top-pushing mechanisms (6) and be held in two sides of the B across lower boom (20) direction across bridge respectively to it, completes interim lock
It is fixed.
9. application method as claimed in claim 8, which is characterized in that further include following steps after completing temporary locking:
After completion B joins the two sections of a bridge, etc across steel truss girder (2) and A across steel truss girder (1), temporary locking is released.
10. application method as claimed in claim 8, it is characterised in that: in lifting B across steel truss girder (2) to B across steel truss girder (2)
It further include adjusting B across steel truss by two top-pushing mechanisms (6) in the step of closure mouth and A are across steel truss girder (1) closure mouth contraposition
The step of beam (2) closure mouth position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198903.8A CN109868749B (en) | 2019-03-15 | 2019-03-15 | Wind-resistant locking device for erecting closure openings one by one through steel trussed beams and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910198903.8A CN109868749B (en) | 2019-03-15 | 2019-03-15 | Wind-resistant locking device for erecting closure openings one by one through steel trussed beams and using method |
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| Publication Number | Publication Date |
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| CN109868749A true CN109868749A (en) | 2019-06-11 |
| CN109868749B CN109868749B (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910198903.8A Active CN109868749B (en) | 2019-03-15 | 2019-03-15 | Wind-resistant locking device for erecting closure openings one by one through steel trussed beams and using method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111519538A (en) * | 2020-04-17 | 2020-08-11 | 中铁大桥局集团有限公司 | Hole-by-hole erection method for large-span continuous steel truss girder |
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| CN109868749B (en) | 2020-09-08 |
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