CN105951605B - Steel strand wires are steady on bridge floor, accurate blanking device and method - Google Patents
Steel strand wires are steady on bridge floor, accurate blanking device and method Download PDFInfo
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- CN105951605B CN105951605B CN201610445184.1A CN201610445184A CN105951605B CN 105951605 B CN105951605 B CN 105951605B CN 201610445184 A CN201610445184 A CN 201610445184A CN 105951605 B CN105951605 B CN 105951605B
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- strand wires
- steel strand
- bridge floor
- concrete
- steel
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- 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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of device and method of steady on bridge floor, accurate blanking the present invention relates to steel strand wires, steel strand wires are fixed on bridge floor by fixed frame, set bearing beam before steel strand wires discharge end at 3m, and one is provided with the middle of bearing beamHole；Fixed pulley is arranged on and has poured concrete front top, and, to an abrasive wheel cutting machine is set at the direction 2.2m for newly pouring, the boundary that concrete the old and new pour is to setting vertical reinforcement at old casting direction 0.5m for the boundary that concrete new-old is poured.First, forward and backward framework is attached on steel strand wires；Fastening screw is fastened through forward and backward framework with nut；Steel strand wires are pulled out from front baffle and sequentially pass through constraint circle, bearing beamHole, fixed pulley bends, drawn forward by vertical reinforcement；Steel strand wires are moved to the termination of young concrete always；Again drawn forward from new, old casting concrete intersection, end face is brought out before making steel strand wires；The accurate blanking of steel strand wires is cut with the abrasive wheel cutting machine for being fixed on bridge floor cutting position.
Description
Technical field
The present invention relates to a kind of device of the blanking of steel strand wires in construction, especially a kind of steel strand wires on bridge floor
The device and method of blanking.
Background technology
The RB-06 grand bridges of Teheran the north highway first stage of the project are located at 9 degree of earthquake territories of Iranian Mountainous Area of North.For
Mitigate bridge deadweight, further improve the bridge construction anti-seismic performance, compare through multi-scheme.Design is pre- across Wavelike steel webplate using 3
Prestressed concrete continuous bridge.Bridge lateral double width arranges, left and right width bridge clear distance 2m.Single width bridge floor 13.1m wide, its across footpath cloth
It is set to 83+153+83=319m, tunnel entrance, outlet of the bridge main across 153m between mulberry koris, 2 seat height mountains of connection.
The side hillside of mulberry koris 2 is precipitous.1# piers are located on the hillside of river valley side, pier shaft left panel height 28m, right panel height 31m.2# piers are located at river
Paddy opposite is at the foot of the hill.Left and right width pier shaft 65.5m high.Single chamber list box beam center 8.8m high.Therefore bridge floor to river valley has more than 80 m high.
Collapse across, 2# piers side in RB-06 grand bridge 1# piers and cross over existing highway.Construction period must not influence traffic.Therefore construction site is only
In very narrow and small mountain valley that can be between river valley and 2# piers.Cause difficulty of construction extremely difficult.Project progress is completed on schedule,
RB-06 grand bridges turn into the position that whole engineering applies most critical.
Steel web Construction of continuous beam order (see Fig. 1), 2#~16# sections of (0,1# sections except) uses cradle construction.Hang
What one sections of basket, sections were pushed ahead.The concreting of box beam each sections is completed, high by being arranged on bridge floor
After the completion of intensity, underrelaxation steel strand tension, the reach construction loads of Hanging Basket could be met.Bridge floor longitudinal direction steel strand wires are with sections
Increase, length is continuously increased.It is 46.3m from 5# segmental lengths, 152m is reached to 16# segmental lengths.
Steel strand wires are that producer is bundled packages the scene of transporting to.General one is bundled between 3~4 tons.(see Fig. 2).Prestressing force is applied
Work first has to steel wire.High intensity, the steel strand wires of underrelaxation, one leaves packaging, is exactly straight one, can also beat
" strand ".To prevent hurting sb.'s feelings.It is general all to be carried out on spacious ground.R L6 grand bridges construction site it is narrow and small, bridge pier is again so
It is high.It is just very inadequate in vertical transport to bridge floor more than 80 m high to steel strand wires length after the completion of below 40m, blanking.Will be to 16#
Every length of sections is difficult to the imagination up to (22) steel strand wires of 152m.Therefore, steel wire for more than 40m, it is necessary to
Steel strand wires after 4# sections are put into bridge floor blanking up.
The content of the invention
The present invention is to provide for that a kind of steel strand wires are steady on bridge floor, accurate blanking device and method, using on building site
Current material makes the framework of fixed steel strand wires, for construction site it is narrow and small, bridge pier height is high, vertical transport is difficult bridge is applied
Work.
To achieve the above object, the technical solution adopted by the present invention is：A kind of steel strand wires are steady on bridge floor, accurate blanking
Device, including steel strand wires, fixed frame, bearing beam, fixed pulley, abrasive wheel cutting machine, vertical reinforcement, the steel strand wires are by fixing
Framework is fixed on bridge floor, and the fixed frame side is provided with constraint circle；One extension is set at 3m before steel strand wires discharge end
The working bearing beam of basket, is provided with one in the middle of bearing beamHole；Before the fixed pulley is arranged on the concrete for newly having poured
End top, direction 2.2m place setting one sand of the boundary poured in novel concrete and old concrete to the concrete for newly pouring
Wheel cutting machine, sets vertical reinforcement at the 0.5m that the boundary poured in novel concrete and old concrete is poured to old concrete.
The fixed frame includes front baffle, afterframe, by fastening spiral shell after placement steel strand wires in front baffle and afterframe
Bar and nut fastening and regulation steel strand wires, then weld constraint circle outside front baffle.
When steel wire, the steel strand wires are released from fixed frame and passed sequentially through in the middle of constraint circle, bearing beamHole, pulley, vertical reinforcement to the end of other end young concrete.
When steel strand wires not blanking, the steel strand wires iron wire is tied up pull-out steel strand wires head in constraint circle.
The constraint circle byReinforcement fabrication, the outside diameter of constraint circleSmall endLength
It is 600mm.
The front baffle, afterframe are made up of vertical channel-section steel, transverse channel steels, longitudinal channel-section steel, diagonal brace respectively, two vertical slots
Two transverse channel steels between steel by upper and lower arrangement weld together, and two vertical channel-section steel bottoms are respectively welded horizontal indulging
To channel-section steel, form L-type and erect framework, diagonal brace is welded between longitudinal channel-section steel and vertical channel-section steel, L-type erects welded reinforcement shape in framework
Into intersecting parallels, 24mm wide, the rectangular opening of 80mm long are provided with the vertical channel-section steel two ends 160mm.
The front baffle, the height of afterframe are 1400mm, and width is 960mm.
A kind of steel strand wires are steady on bridge floor, accurate baiting method, it is characterised in that concretely comprise the following steps：
The first step, steel strand wires is hung and is put on bridge floor；
Second step, forward and backward framework is attached on steel strand wires；
3rd step, fastening screw is fastened through forward and backward framework with nut；
4th step, steel strand wires are pulled out by constraint circle from front baffle, make the steel strand wires can only be before constraint circleCircle
Interior upper and lower play, then by bearing beamHole；
5th step, steel strand wires start to bend by fixed pulley, and are drawn forward by vertical reinforcement；
6th step, steel strand wires are moved to the termination of young concrete always；
7th step, is drawn forward from new, old casting concrete intersection again, and end face is brought out before making steel strand wires；
8th step, the accurate blanking of steel strand wires is cut with the abrasive wheel cutting machine for being fixed on bridge floor cutting position.
The beneficial effects of the invention are as follows：The present invention makes the framework of fixed steel strand wires using current material on building site, uses
Steel wire device blanking steel strand wires of the invention, unlike generally going out to need length by dipstick metering, carry out mark.And definitely protect
The active length of steel strand wires is demonstrate,proved, is not wasted also.And construct till now it has not been found that too short and long.This be construction site it is narrow and small,
Construction provides a good apparatus and method on the water surface.
Brief description of the drawings
Fig. 1 is steel web Construction of continuous beam sequential schematic；
Fig. 2 is into bale packaging steel strand wires schematic diagram；
Fig. 3 is front baffle structural front view；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is afterframe structural front view；
Fig. 6 is the left view of Fig. 5；
Fig. 7 is constraint coil structures floor map；
Fig. 8 is the left view of Fig. 7；
Fig. 9 is stationary frame structure front view；
Figure 10 is the left view of Fig. 9；
Figure 11 is the top view of Fig. 9；
Figure 12 is fixed pulley schematic diagram；
Figure 13 is abrasive wheel cutting machine schematic diagram；
Figure 14 is bearing beam structural front view；
Figure 15 is the left view of Figure 14；
Figure 16 is that steel strand wires prepare to pull out blanking view；
Figure 17 is the sectional view in Figure 16 along A-A；
Figure 18 is pulled out to young concrete end view for steel strand wires；
For steel strand wires are returned to, new and old intersection moves casting concrete end view to Figure 19 again.
Specific embodiment
As shown in Fig. 1 to Figure 19, a kind of steel strand wires are steady on bridge floor, accurate blanking device, including steel strand wires 1, solid
Determine framework 2, bearing beam 3, fixed pulley 4, abrasive wheel cutting machine 5, vertical reinforcement 6 etc..
As shown in Figure 16 to Figure 19, steel strand wires 1 are fixed on bridge floor by fixed frame 2, and the side of fixed frame 2 is provided with about
Beam circle 14；One bearing beam of cradle construction 3 is set at 3m before the discharge end of steel strand wires 1, one is provided with the middle of bearing beam 3Hole；Fixed pulley 4 is arranged on the Concrete front top for newly having poured, and is poured with old concrete B in novel concrete A
Boundary at the direction 2.2m of the Concrete for newly pouring set an abrasive wheel cutting machine 5, in novel concrete A and old coagulation
Vertical reinforcement 6 is set at the 0.5m that the boundary that native B is poured is poured to old concrete B.
As shown in Figures 9 to 11, fixed frame 2 includes front baffle 20, afterframe 21, is put in front baffle 20 and afterframe 21
Steel strand wires are fastened and adjust by fastening screw 16 and nut 17 after putting steel strand wires 1, front baffle 20 is outer then to weld constraint circle 14.
Front baffle 20, afterframe 21 make main material 10# channel-section steels, 1400mm high two.960mm long two, 500mm
Two, welding fabrication (see Fig. 3 to Fig. 6).In figure at the two ends 160mm of vertical channel-section steel 10 of 1400mm long, 24mm wide, length are provided with
The rectangular opening of 80mm, for fastening steel strand wires regulation.The transverse channel steels 11 of 760mm long are welded on two vertical channel-section steels 10 of 1400mm
Between form framework, welded with the level of longitudinal channel-section steel 12 of 500mm long in base of frame, its l-shaped is erected framework.Between tiltedly
Support 13 is usedReinforcing bar, makes it stand in ground into individual tripod stabilizer.Used in frameworkReinforcement welding intersecting parallels,
Vertical spacing 550mm, level is to spacing 520mm.(see Fig. 3,5).Front baffle and afterframe are distinguished in intersecting parallels frame 15, between weld
Connect a constraint circle 14.Other are all.Such as Fig. 7, shown in 8, constraint circle 14 is usedReinforcement fabrication, outside diameterSmall endLength is 600.
When using, packaged steel strand wires 1 hang the Hanging Basket outside of bridge floor, and afterframe 21 is first abutted steel strand wires 1.Fastening screw 16 passed through from rectangular opening, one end first the nut 17 of pad 18, M20 is installed.Again front baffle
20 touch steel strand wires 1.Fastening screw 16 is gone through, upper and lower space is adjusted.Backing plate 18, nut 17 are first-class.Steel strand wires 1 are consolidated
Be fixed on bridge floor.Steel strand wires 1 fix (see Figure 16,17) and at this moment can just remove strap, pull out steel strand wires 1.Steel is twisted
Pull-out steel strand wires head can be tied up in constraint circle 14 with iron wire when 1 not blanking of line.
Concrete+the active length of the length of the blanking of steel strand wires 1=poured is (jack at two ends, work anchor, spacing
Expose 3cm etc. after plate, moveable anchor, intermediate plate equal length and installation intermediate plate).
It is the steel strand wires length of this each sections 2.2m more long than bridge floor.In the novel concrete A front tops for having poured
One fixed pulley 4 (Figure 12) is set, side from the boundary poured in novel concrete A and old concrete B to the Concrete for newly pouring
To one abrasive wheel cutting machine 5 of setting at 2.2m, and maintain static.The boundary poured with old concrete B in novel concrete A is to old
Reinforcing bar 6 is set at concrete 0.5m, before steel strand wires discharge end about 3m places set bearing beam for cradle construction 3 (see
Figure 14,15), there is one in the middle of bearing beam 3Hole.So steel strand wires 1 are just stirred in constraint circle 14, the hole of bearing beam 3
, do not interfere with surrounding environment.
When steel wire, steel strand wires 1 are released from fixed frame 2 → 14 → bearing beam of constraint circle, 3 → fixed pulley 4 → perpendicular
To reinforcing bar 6 → to other end top (see Figure 18).After putting down, return to new and old intersection this 4.8m is moved to again and newly pour
The top (see Figure 19) of concrete.Last workman cuts off steel strand wires at abrasive wheel cutting machine.After cut-out, this workman after
It is continuous to draw the 2nd.Six workmans can just complete the task of blanking in bridge floor.First man is pulled out behind 30 meters of followed by the 2nd people drawings
Such circulation, last abrasive wheel cutting machine 5 cut-out steel strand wires 1.
Steel strand wires of the invention are steady on bridge floor, accurate baiting method, concretely comprise the following steps：
The first step, steel strand wires 1 is hung and is put on bridge floor (Figure 16,17)；
Second step, forward and backward framework 20,21 is attached on steel strand wires 1 (Fig. 9,10,11)；
3rd step, fastening screw 16 is fastened (Fig. 9,10,11) through the nut 17 of forward and backward framework 20,21；
4th step, steel strand wires 1 are pulled out by constraint circle 14 from front baffle 20, can only be before constraint circle 14Circle
Interior upper and lower play, then by bearing beam 3Hole, just not play (Figure 18) substantially；
5th step, steel strand wires 1 start to bend by fixed pulley 4, and draw (Figure 18) forward by vertical reinforcement 6；
6th step, steel strand wires 1 are moved to the termination (Figure 18) of young concrete always；
7th step, again from new, old casting concrete A, B intersections draw forward, and front end allows steel strand wires 1 to go out the (figure of end face 9
19)；
8th step, the accurate blanking of steel strand wires 1 is cut with the abrasive wheel cutting machine 5 for being fixed on bridge floor cutting position.
Claims (8)
1. a kind of steel strand wires are steady on bridge floor, accurate blanking device, including steel strand wires (1), fixed frame (2), bearing beam
(3), fixed pulley (4), abrasive wheel cutting machine (5), vertical reinforcement (6), it is characterised in that：The steel strand wires (1) are by fixed frame
(2) it is fixed on bridge floor, fixed frame (2) side is provided with constraint circle (14)；Set at 3m before steel strand wires (1) discharge end
Put and be provided with one in the middle of a bearing beam for cradle construction (3), bearing beam (3)Hole；The fixed pulley (4) is arranged on newly
Novel concrete (A) front top for having poured, the boundary that pours in novel concrete (A) and old concrete (B) is to newly pouring
One abrasive wheel cutting machine (5) is set at the direction 2.2m of novel concrete (A), is poured in novel concrete (A) and old concrete (B)
Vertical reinforcement (6) is set at the 0.5m that boundary is poured to old concrete (B).
2. steel strand wires according to claim 1 are steady on bridge floor, accurate blanking device, it is characterised in that：It is described solid
Determining framework (2) includes front baffle (20), afterframe (21), steel strand wires (1) is placed in front baffle (20) and afterframe (21) and is led to afterwards
Cross fastening screw (16) and nut (17) fastening and regulation steel strand wires, front baffle (20) then welding constraint circle (14) outward.
3. steel strand wires according to claim 1 are steady on bridge floor, accurate blanking device, it is characterised in that：When steel is twisted
During line blanking, the steel strand wires (1) are released from fixed frame (2) and are passed sequentially through in the middle of constraint circle (14), bearing beam (3)
Hole, fixed pulley (4), vertical reinforcement (6) to the end of other end novel concrete (A).
4. steel strand wires according to claim 1 are steady on bridge floor, accurate blanking device, it is characterised in that：When steel is twisted
When line not blanking, the steel strand wires (1) are tied up pull-out steel strand wires head in constraint circle (14) with iron wire.
5. steel strand wires according to claim 1 are steady on bridge floor, accurate blanking device, it is characterised in that：It is described about
Beam circle (14) byReinforcement fabrication, the outside diameter of constraint circleSmall endLength is 600mm.
6. steel strand wires according to claim 2 are steady on bridge floor, accurate blanking device, it is characterised in that：Before described
Framework (20), afterframe (21) are made up of vertical channel-section steel (10), transverse channel steels (11), longitudinal channel-section steel (12), diagonal brace (13) respectively,
Two transverse channel steels (11) between two vertical channel-section steels (10) by upper and lower arrangement weld together, two vertical channel-section steels
(10) bottom is respectively welded horizontal longitudinal channel-section steel (12), forms L-type and erects framework, longitudinal channel-section steel (12) and vertical channel-section steel (10)
Between weld diagonal brace (13), L-type erects in framework welded reinforcement and forms intersecting parallels frame (15), vertical channel-section steel (10) two ends
24mm wide, the rectangular opening of 80mm long are provided with 160mm.
7. steel strand wires according to claim 2 are steady on bridge floor, accurate blanking device, it is characterised in that：Before described
Framework (20), the height of afterframe (21) are 1400mm, and width is 960mm.
8. a kind of steel strand wires are steady on bridge floor, accurate baiting method, it is characterised in that concretely comprise the following steps：
The first step, steel strand wires (1) is hung and is put on bridge floor；
Second step, forward and backward framework (20,21) is attached on steel strand wires (1)；
3rd step, fastening screw (16) is fastened through forward and backward framework (20,21) with nut (17)；
4th step, steel strand wires (1) are pulled out by constraint circle (14) from front baffle (20), make the steel strand wires (1) can only be in constraint circle
(14) beforeCircle in play up and down, then by bearing beam (3)Hole；
5th step, steel strand wires (1) start to bend by fixed pulley (4), and are drawn forward by vertical reinforcement (6)；
6th step, steel strand wires (1) are moved to the termination of young concrete always；
7th step, is drawn forward from new, old casting concrete (A, B) intersection again, and end face is brought out before making steel strand wires (1)；
8th step, the accurate blanking of steel strand wires (1) is cut with the abrasive wheel cutting machine (5) for being fixed on bridge floor cutting position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610445184.1A CN105951605B (en) | 2016-06-20 | 2016-06-20 | Steel strand wires are steady on bridge floor, accurate blanking device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610445184.1A CN105951605B (en) | 2016-06-20 | 2016-06-20 | Steel strand wires are steady on bridge floor, accurate blanking device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105951605A CN105951605A (en) | 2016-09-21 |
| CN105951605B true CN105951605B (en) | 2017-06-23 |
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ID=56907080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610445184.1A Active CN105951605B (en) | 2016-06-20 | 2016-06-20 | Steel strand wires are steady on bridge floor, accurate blanking device and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008280730A (en) * | 2007-05-10 | 2008-11-20 | Sumitomo Denko Steel Wire Kk | Feeding device and laying method for prestressed steel strand |
| CN204751678U (en) * | 2015-06-18 | 2015-11-11 | 中建八局第三建设有限公司 | A charging tray fastener for steel strand wires unloading |
| CN105110069A (en) * | 2015-08-07 | 2015-12-02 | 中铁五局（集团）有限公司 | Support for unbundling and fixed-length cutting of steel strands of whole bundle |
| CN205240695U (en) * | 2015-11-10 | 2016-05-18 | 浙江兴土桥梁临时钢结构工程有限公司 | Steel strand wires scale unloader for bridge |
| CN205775875U (en) * | 2016-06-20 | 2016-12-07 | 杭州市交通工程集团有限公司 | Steel strand wires are steady on bridge floor, the device of accurate blanking |
-
2016
- 2016-06-20 CN CN201610445184.1A patent/CN105951605B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008280730A (en) * | 2007-05-10 | 2008-11-20 | Sumitomo Denko Steel Wire Kk | Feeding device and laying method for prestressed steel strand |
| CN204751678U (en) * | 2015-06-18 | 2015-11-11 | 中建八局第三建设有限公司 | A charging tray fastener for steel strand wires unloading |
| CN105110069A (en) * | 2015-08-07 | 2015-12-02 | 中铁五局（集团）有限公司 | Support for unbundling and fixed-length cutting of steel strands of whole bundle |
| CN205240695U (en) * | 2015-11-10 | 2016-05-18 | 浙江兴土桥梁临时钢结构工程有限公司 | Steel strand wires scale unloader for bridge |
| CN205775875U (en) * | 2016-06-20 | 2016-12-07 | 杭州市交通工程集团有限公司 | Steel strand wires are steady on bridge floor, the device of accurate blanking |
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| Publication number | Publication date |
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| CN105951605A (en) | 2016-09-21 |
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