CN105951605A - Apparatus and method for blanking steel strand stably and accurately on deck - Google Patents
Apparatus and method for blanking steel strand stably and accurately on deck Download PDFInfo
- Publication number
- CN105951605A CN105951605A CN201610445184.1A CN201610445184A CN105951605A CN 105951605 A CN105951605 A CN 105951605A CN 201610445184 A CN201610445184 A CN 201610445184A CN 105951605 A CN105951605 A CN 105951605A
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- steel strand
- strand wires
- steel
- concrete
- bridge floor
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Classifications
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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
The invention relates to an apparatus and method for blanking a steel strand stably and accurately on a deck. The steel strand is fixed to the deck through a fixing frame, a pad is disposed 3 m in the front of a release end of the steel strand, and the middle of pad is provided with a hole Phi30 mm; a fixed pulley is disposed at the top of the front end of concrete that has been cast, a grinding wheel cutter is disposed 2.2 m from a new and old concrete junction to a new casting direction, and vertical rebars are disposed 0.5 m from the new and old concrete junction to an old casting direction. The method includes: first, attaching front and rear frames to the steel strand; passing fastening bolts through the front and rear frames, and fastening with nuts; pulling the steel strand out of the front frame, passing it sequentially by a constraint ring, the hole Phi30 mm of the pad and the fixed pulley, and pulling forward via the vertical rebars; pulling the steel strand all the way to an end of the newly cast concrete; pulling forward again from the new and old concrete junction so that the front end of the steel strand is out of the end face; cutting the steel strand for accurate blanking with the grinding wheel cutter at a deck cutting position.
Description
Technical field
The present invention relates to the device of the blanking of steel strand wires in a kind of construction, a kind of steel on bridge floor
The device and method of twisted wire blanking.
Background technology
The RB-06 grand bridge of the north, Teheran highway first stage of the project is positioned at 9 degree of earthquakes of Iran Mountainous Area of North
District.For alleviating bridge deadweight, improve this bridge construction anti-seismic performance further, compare through multi-scheme.Design is adopted
With 3 across Wavelike steel webplate prestressed concrete continuous beam.Bridge lateral double width is arranged, left and right width bridge is clean
Away from 2m.Single width bridge floor width 13.1m, its span setting is 83+153+83=319m, bridge main across 153m across
Mulberry koris, connects the tunnel entrance between 2 seat height mountains, outlet.Hillside, Mulberry koris 2 side is precipitous.1#
Pier is positioned on hillside, side, river valley, pier shaft left panel height 28m, right panel height 31m.2# pier is positioned at the foot of the hill, opposite, river valley
Under.Left and right width pier shaft height 65.5m.Single chamber list box beam center height 8.8m.Therefore there are more than 80 m in bridge floor to river valley
High.RB-06 grand bridge 1# pier collapses all cross over existing highway across, 2# pier limit.Construction period must not affect friendship
Logical.Therefore construction site can only be in the narrowest and small mountain valley between river valley and 2# pier.Cause difficulty of construction pole
Its difficulty.Completing project progress, RB-06 grand bridge becomes whole engineering and executes the position of most critical on schedule.
Steel web Construction of continuous beam order (see Fig. 1), (0,1# sections except) 2#～16# section uses Hanging Basket to execute
Work.I.e. one sections of Hanging Basket, sections is pushed ahead.The concreting of each sections of box beam completes,
After dependence is arranged on high intensity on bridge floor, underrelaxation steel strand tension completes, the reach that could meet Hanging Basket is executed
Work load.Bridge floor longitudinal direction steel strand wires increase along with sections, and length is continuously increased.It is 46.3m from 5# segmental length,
152m is reached to 16# segmental length.
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).
Pre-stress construction first has to steel wire.High intensity, the steel strand wires of underrelaxation, one leaves packaging, it is simply that
Straight one, also can beat " strand ".For preventing from hurting sb.'s feelings.The most all carry out on spacious ground.R L6 especially big
The construction site of bridge is narrow and small, and bridge pier is again the highest.To steel strand wires length at below 40m, after blanking completes,
Vertical transport is to the most inadequate on bridge floor high for more than 80 m.To reach (the 22 of 152m by root length degree every to 16# sections
Root) steel strand wires be difficult to the imagination.To this end, for the steel wire of more than 40m, need after 4# sections
Steel strand wires be put into bridge floor and get on blanking.
Summary of the invention
The present invention is to provide for that a kind of steel strand wires are steady on bridge floor, the device and method of accurate blanking, utilizes work
Current material makes the framework of fixing steel strand wires on the ground, narrow and small for construction site, bridge pier height high, vertical
The bridge construction of transport difficult.
For achieving the above object, the technical solution used in the present invention is: a kind of steel strand wires are steady on bridge floor, accurate
The really device of blanking, including steel strand wires, fixed frame, bearing beam, fixed pulley, abrasive wheel cutting machine, vertical steel
Muscle, described steel strand wires are fixed on bridge floor by fixed frame, and described fixed frame side is provided with constraint circle；
The bearing beam of one cradle construction is set at 3m before steel strand wires discharge end, in the middle of bearing beam, is provided with one
Hole；Described fixed pulley is arranged on the concrete front top newly poured, at novel concrete and old concrete
The boundary poured arranges an abrasive wheel cutting machine at the direction 2.2m of the concrete newly poured, at new coagulation
The boundary that soil and old concrete pour arranges vertical reinforcement at the 0.5m that old concrete pours.
Described fixed frame passes through tight after placing steel strand wires in including front baffle, afterframe, front baffle and afterframe
Gu screw rod and nut fasten and regulation steel strand wires, outside front baffle, then welding constraint is enclosed.
When steel wire, described steel strand wires are released from fixed frame and are passed sequentially through in the middle of constraint circle, bearing beamHole, pulley, the end of vertical reinforcement to other end young concrete.
When steel strand wires not blanking time, described steel strand wires iron wire is tied up pull-out steel strand wires head on constraint circle.
Described constraint circle byReinforcement fabrication, constraint circle outside diameterSmall end
A length of 600mm.
Described front baffle, afterframe are made up of vertical channel-section steel, transverse channel steels, longitudinal channel-section steel, diagonal brace respectively, and two
Welded together by two transverse channel steels of upper and lower layout between the vertical channel-section steel of root, at the bottom of two vertical channel-section steels
Longitudinal channel-section steel of portion's weld horizontal respectively, forms L-type and erects framework, weld between longitudinal channel-section steel and vertical channel-section steel
Connecing diagonal brace, in L-type erects framework, welded reinforcement forms intersecting parallels, has at described vertical channel-section steel two ends 160mm
Wide 24mm, the rectangular opening of long 80mm.
Described front baffle, the height of afterframe are 1400mm, and width is 960mm.
A kind of steel strand wires baiting method steady on bridge floor, accurate, it is characterised in that concretely comprise the following steps:
Steel strand wires are hung and are put on bridge floor by the first step；
Second step, is attached to forward and backward framework on steel strand wires；
3rd step, fastening screw fastens through forward and backward framework nut；
4th step, steel strand wires pull out through Planar Mechanisms circle from front baffle, make steel strand wires retraining before circle's
Upper and lower play in circle, then through bearing beamHole；
5th step, steel strand wires start to bend through fixed pulley, draw forward through vertical reinforcement again；
Steel strand wires are moved to the termination of young concrete by the 6th step always；
7th step, again draws forward from casting concrete intersection new, old, brings out end face before making steel strand wires；
8th step, with the abrasive wheel cutting machine accurate blanking of cutting of steel twisted wire being fixed on bridge floor cutting position.
The invention has the beneficial effects as follows: the present invention utilizes current material on building site to make the framework of fixing steel strand wires,
Use the steel wire device blanking steel strand wires of the present invention, unlike generally taking dipstick metering to go out to need length, carry out
Mark.And the active length of absolute guarantee's steel strand wires, do not waste.And construction does not the most find
Too short and long.For construction site is narrow and small, on the water surface, construction provides good apparatus and method for this.
Accompanying drawing explanation
Fig. 1 is steel web Construction of continuous beam sequential schematic；
Fig. 2 is for becoming 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 pull-out blanking view；
Figure 17 is the sectional view in Figure 16 along A-A；
Figure 18 is that steel strand wires are pulled out to young concrete end view；
Figure 19 is that steel strand wires return to new and old intersection and move casting concrete end view again to.
Detailed description of the invention
As shown in Fig. 1 to Figure 19, a kind of steel strand wires are steady on bridge floor, the device of accurate blanking, including
Steel strand wires 1, fixed frame 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, fixed frame 2
Side is provided with constraint circle 14；The bearing beam 3 of one cradle construction is set at 3m before steel strand wires 1 discharge end,
It is provided with one in the middle of bearing beam 3Hole；Fixed pulley 4 is arranged on the top, Concrete front end newly poured
Portion, the boundary poured at novel concrete A and old concrete B is to the direction 2.2m of the Concrete newly poured
Place arranges an abrasive wheel cutting machine 5, and the boundary poured at novel concrete A and old concrete B is to old concrete
Vertical reinforcement 6 is set at the 0.5m that B pours.
As shown in Figures 9 to 11, fixed frame 2 includes front baffle 20, afterframe 21, front baffle 20 and after
Fasten and regulate steel strand wires, front frame by fastening screw 16 and nut 17 after placing steel strand wires 1 in framework 21
Frame 20 outer then welding constraint circle 14.
Front baffle 20, afterframe 21 make main material 10# channel-section steel, high 1400mm two.Long 960mm
Two, 500mm two, welding fabrication (see Fig. 3 to Fig. 6).The vertical channel-section steel 10 of long 1400mm in figure
At the 160mm of two ends, have wide 24mm, the rectangular opening of long 80mm, for fastening steel strand wires regulation.Long 760mm
Transverse channel steels 11 be welded between two vertical channel-section steels of 1400mm 10 formation framework, long in base of frame
Longitudinal channel-section steel 12 level welding of 500mm so that it is l-shaped erects framework.Between diagonal brace 13 useSteel
Muscle so that it is become a tripod stabilizer stands in ground.Use in frameworkReinforcement welding intersecting parallels, perpendicular
To spacing 550mm, level is to spacing 520mm.(see Fig. 3,5).Front baffle is distinguished at intersecting parallels with afterframe
Frame 15, between welding constraint a circle 14.Other all as.Such as Fig. 7, shown in 8, constraint circle 14 use
Reinforcement fabrication, outside diameterSmall endA length of 600.
During use, packaged steel strand wires 1 hang outside the Hanging Basket of bridge floor, first afterframe 21 are twisted against steel
Line 1.?Fastening screw 16 pass in rectangular opening, one end is first pad 18, the nut of M20
17 install.Again front baffle 20 is touched steel strand wires 1.Fastening screw 16 is gone through, adjusts the most empty
Gap.Backing plate 18, nut 17 are first-class.Firm being fixed on bridge floor of steel strand wires 1.Steel strand wires 1 fix
(see Figure 16,17) the most just can remove strap, pulls out steel strand wires 1.When steel strand wires 1 not blanking
With iron wire, pull-out steel strand wires head can be tied up on constraint circle 14.
Concrete+the active length of the length of steel strand wires 1 blanking=poured (jack at two ends, work anchor,
3cm etc. is exposed) after limiting plate, moveable anchor, intermediate plate equal length and installation intermediate plate.
Steel strand wires length 2.2m longer than bridge floor for this each sections.In the novel concrete A front end poured
Top arranges a fixed pulley 4 (Figure 12), and the boundary poured at novel concrete A and old concrete B is to newly
One abrasive wheel cutting machine 5 is set at the direction 2.2m of the Concrete poured, and maintains static.At new coagulation
The boundary that soil A and old concrete B pours arranges reinforcing bar 6 at old concrete 0.5m, releases at steel strand wires
Before end, about 3m place is arranged has in the middle of the bearing beam 3 (see Figure 14,15) of a cradle construction, bearing beam 3
OneHole.So steel strand wires 1 just stir in the hole retraining circle 14, bearing beam 3, Bu Huiying
Ring and arrive surrounding.
When steel wire, circle 14 → bearing beam 3 → fixed is released → retrained to steel strand wires 1 from fixed frame 2
Pulley 4 → vertical reinforcement 6 → to other end top (see Figure 18).After putting down, return to new and old intersection
Again this 4.8m is moved to the top (see Figure 19) of young concrete.Last workman cuts at emery wheel
At machine, steel strand wires are cut off.After cut-out, this workman continues to draw the 2nd.Six workmans just can be complete at bridge floor
Become the task of blanking.First man pulls out 30 meters of the followed by the 2nd people and draws such circulation below, last emery wheel
Cutting machine 5 cuts off steel strand wires 1.
The steel strand wires of present invention baiting method steady on bridge floor, accurate, concretely comprises the following steps:
Steel strand wires 1 are hung and are put on bridge floor (Figure 16,17) by the first step；
Second step, is attached on steel strand wires 1 (Fig. 9,10,11) forward and backward framework 20,21；
3rd step, fastening screw 16 through forward and backward framework 20,21 nut 17 fasten (Fig. 9,10,
11)；
4th step, steel strand wires 1 pull out through Planar Mechanisms circle 14 from front baffle 20, can only be before constraint circle 14Circle in upper and lower play, then through bearing beam 3Hole, the most not play (Figure 18)；
5th step, steel strand wires 1 start to bend through fixed pulley 4, draw forward (figure through vertical reinforcement 6 again
18)；
Steel strand wires 1 are moved to the termination (Figure 18) of young concrete by the 6th step always；
7th step, again from casting concrete A new, old, B intersection draws forward, and front end allows steel strand wires 1 go out
End face 9 (Figure 19)；
8th step, with the accurate blanking of abrasive wheel cutting machine 5 cutting of steel twisted wire 1 being fixed on bridge floor cutting position.
Claims (8)
1. steel strand wires are steady on bridge floor, a device for accurate blanking, 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: described steel twists
Line (1) is fixed on bridge floor by fixed frame (2), and described fixed frame (2) side is provided with constraint circle (14)；
Arrange at 3m before steel strand wires (1) discharge end and set in the middle of the bearing beam (3) of a cradle construction, bearing beam (3)
There is oneHole；Described fixed pulley (4) is arranged on concrete (A) front top newly poured,
The boundary that novel concrete (A) and old concrete (B) pour is to the direction 2.2m of the concrete (A) newly poured
Place arranges an abrasive wheel cutting machine (5), the boundary poured at novel concrete (A) and old concrete (B) to
Vertical reinforcement (6) is set at the 0.5m that old concrete (B) pours.
Steel strand wires the most according to claim 1 are steady on bridge floor, the device of accurate blanking, it is characterised in that:
Described fixed frame (2) is put in including front baffle (20), afterframe (21), front baffle (20) and afterframe (21)
Putting steel strand wires (1) and fasten and regulate steel strand wires by fastening screw (16) and nut (17) afterwards, front baffle (20) is outward
Then welding constraint circle (14).
Steel strand wires the most according to claim 1 are steady on bridge floor, the device of accurate blanking, it is characterised in that:
When steel wire, described steel strand wires (1) are released from fixed frame (2) and are passed sequentially through constraint circle (14), pad
In the middle of beam (3)Hole, fixed pulley (4), vertical reinforcement (6) arrive other end young concrete A's
End.
Steel strand wires the most according to claim 1 are steady on bridge floor, the device of accurate blanking, it is characterised in that:
When steel strand wires not blanking time, described steel strand wires (1) iron wire ties up pull-out steel strand wires head in constraint circle (14)
On.
Steel strand wires the most according to claim 1 are steady on bridge floor, the device of accurate blanking, it is characterised in that:
Described constraint circle (14) byReinforcement fabrication, constraint circle outside diameterSmall end
A length of 600mm.
Steel strand wires the most according to claim 2 are steady on bridge floor, the device of accurate blanking, it is characterised in that:
Described front baffle (20), afterframe (21) are respectively by vertical channel-section steel (10), transverse channel steels (11), longitudinal channel-section steel
(12), diagonal brace (13) is constituted, by two transverse channel steels of upper and lower layout between two vertical channel-section steels (10)
(11) welding together, two vertical channel-section steel (10) bottoms are respectively welded longitudinal channel-section steel (12) of level, form L
Type erects framework, welds diagonal brace (13) between longitudinal channel-section steel (12) and vertical channel-section steel (10), and L-type erects in framework
Welded reinforcement forms intersecting parallels frame (15), has wide 24mm, length at described vertical channel-section steel (10) two ends 160mm
The rectangular opening of 80mm.
Steel strand wires the most according to claim 2 are steady on bridge floor, the device of accurate blanking, it is characterised in that:
Described front baffle (20), the height of afterframe (21) are 1400mm, and width is 960mm.
8. a steel strand wires baiting method steady on bridge floor, accurate, it is characterised in that concretely comprise the following steps:
Steel strand wires (1) are hung and are put on bridge floor by the first step；
Second step, is attached to forward and backward framework (20,21) on steel strand wires (1)；
3rd step, fastening screw (16) is through forward and backward framework (20,21) nut (17) fastening；
4th step, steel strand wires (1) pull out through Planar Mechanisms circle (14) from front baffle (20), make steel strand wires (1) only
Can be before constraint circle (14)Circle in upper and lower play, then through bearing beam (3)Hole；
5th step, steel strand wires (1) start to bend through fixed pulley (4), draw forward through vertical reinforcement (6) again；
Steel strand wires (1) are moved to the termination of young concrete by the 6th step always；
7th step, again draws forward from casting concrete (A, B) intersection new, old, makes steel strand wires (1) front end
Go out end face；
8th step, with abrasive wheel cutting machine (5) cutting of steel twisted wire (1) the accurately blanking 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 true CN105951605A (en) | 2016-09-21 |
| CN105951605B 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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| CN105951605B (en) | 2017-06-23 |
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