CN108130859A - The beam-ends installation method of suspension cable - Google Patents
The beam-ends installation method of suspension cable Download PDFInfo
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- CN108130859A CN108130859A CN201711434389.0A CN201711434389A CN108130859A CN 108130859 A CN108130859 A CN 108130859A CN 201711434389 A CN201711434389 A CN 201711434389A CN 108130859 A CN108130859 A CN 108130859A
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- suspension cable
- anchor
- steel
- jack
- transfer mechanism
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- 239000000725 suspension Substances 0.000 title claims abstract description 169
- 238000000034 method Methods 0.000 title claims abstract description 74
- 238000009434 installation Methods 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 148
- 239000010959 steel Substances 0.000 claims abstract description 148
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000012546 transfer Methods 0.000 claims abstract description 53
- 238000004873 anchoring Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 11
- 238000011900 installation process Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 38
- 230000032258 transport Effects 0.000 description 19
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001195 anabolic effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000002045 lasting effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention provides a kind of beam-ends installation method of suspension cable, including step：The soft draft gear being made of actuating unit and the first force transfer mechanism is arranged and is hoisted to beam-ends steel anchor box lower end and is installed；Suspension cable is transported, makes the closely described steel anchor box of the head rest that casts anchor of the suspension cable；The lower anchor head of the soft draft gear and the suspension cable is connected using the second force transfer mechanism；Start the soft draft gear, draw the lower anchor head that second force transfer mechanism draws the suspension cable through the steel anchor box；The lower anchor head of the suspension cable is anchored, and releases second force transfer mechanism and actuating unit, to complete the beam-ends installation procedure of single suspension cable.By the implementation of this programme, which ensure that the stability that the beam-ends installation process power of suspension cable is transmitted, while improve the efficiency of construction.
Description
Technical field
The present invention relates to civil construction technical field, specifically, the beam-ends installation side the present invention relates to a kind of suspension cable
Method.
Background technology
Cable-stayed bridge is a kind of bridge being directly pulled in girder with suspension cable on Tasso, be tower by pressure-bearing, tension rope
With a kind of structural system held curved beam body and combined.The girder is considered as the multispan elastic bearing that suspension cable replaces buttress
Continuous beam.And suspension cable can reduce moment of flexure in beam body, reduce building height, alleviate construction weight, save material.Oblique pull
Bridge is mainly made of Sarasota, girder, suspension cable.With the continuous development of bridge technology, master of the cable-stayed bridge as Longspan Bridge
One of type selecting is wanted to be widely used, span is built and increasingly increases, suspension cable is as its length of the main bearing member of cable-stayed bridge
And section increases therewith, site operation difficulty and used device are continuously increased.Construction is hanged up for suspension cable and mainly includes rope
Upper bridge floor, exhibition rope are hung and the processes such as tensioning, are hung wherein hanging process and being divided into tower end and hang with beam-ends.
The sequencing that hangs at tower end or beam-ends for suspension cable is generally dependent on stretching end, and elder generation is hung for different
Sequence afterwards has different working procedures；When stretching end is in beam-ends, after the beam-ends of general suspension cable is mounted on.The prior art
In, the beam-ends of the suspension cable in rear installation is installed generally by the way of soft traction or drawing firmly.But this method due to
Adaptable traction anchor force is small, it is difficult to be adapted to the construction environment that the distance for needing to transport suspension cable is longer, suspension cable is heavier.
So it is badly in need of proposing the beam-ends installation method that a kind of hauling distance is long, traction anchor force is big.
Invention content
The purpose of the present invention is intended to provide one kind and is adapted to that suspension cable hauling distance is long, the big suspension cable of traction anchor force
Beam-ends installation method.
To achieve these goals, the present invention provides following technical scheme：
The beam-ends installation method of a kind of suspension cable, including step：
Be arranged the soft draft gear that is made of actuating unit and the first force transfer mechanism and be hoisted under beam-ends steel anchor box into
Row installation；
Suspension cable is transported, makes the closely described steel anchor box of the head rest that casts anchor of the suspension cable；
The lower anchor head of the soft draft gear and the suspension cable is connected using the second power force transmission mechanism；
Start the soft draft gear, draw second force transfer mechanism and draw the suspension cable through the steel anchor box
Lower anchor head；
The lower anchor head of the suspension cable is anchored, and releases second force transfer mechanism and actuating unit, to complete list
The beam-ends installation procedure of skew cables.
Wherein, it is described that the soft draft gear being made of actuating unit and the first force transfer mechanism is arranged, including step：
The first force transfer mechanism for providing the actuating unit of power by jack and power being transmitted by steel wire bundle is arranged；
The steel wire bundle is inserted into the jack, and lock one.
Wherein, it oil cylinder of the jack with about two, the first moveable anchor in upper cylinder side and is in
Lower the second moveable anchor of oil cylinder side composition；Wherein one end of the steel wire bundle is laid with the first connection being connect with the jack
Device, the other end are laid with the second connector being connect with second force transfer mechanism；It is described that the steel wire bundle is inserted into institute
Jack is stated, and locks one, including step：
The steel wire bundle insertion jack is drawn by carrying first connector one end；
First connector is passed through into first moveable anchor and is locked；
It is arranged and the fixed anchor ring of the second force transfer mechanism on the second moveable anchor of the jack.
Further, it is installed under soft draft gear to beam-ends steel anchor box described in handling, including step：
Under soft draft gear to beam-ends steel anchor box described in handling；
The steel wire bundle is drawn with second connector one end from the steel anchor box lower end to upper end；
The jack is installed on to the lower end of the steel anchor box.
Specifically, the transport suspension cable, until the closely described steel anchor box of the head rest that casts anchor of the suspension cable, including step：
Fortune point is laid below the lower anchor head of the suspension cable at pre-determined distance；
The roller band of a suspension cable is laid on bridge floor；
The lower anchor head of the suspension cable is transported to by institute through the roller band by drawing the fortune point using fortune anchor device
State steel anchor box present position.
Further, it is described to use fortune anchor device by drawing the fortune point by the lower anchor head of the suspension cable through the rolling
Cylinder band is transported to after the steel anchor box present position, further includes step：
Release the traction relationship of the fortune anchor device and suspension cable；
Release the fortune point on the suspension cable.
Preferably, the lower anchor head that the soft draft gear and the suspension cable are connected using the second force transfer mechanism,
Including step：
The second force transfer mechanism that power is transmitted by pull rod is arranged；The pull rod wherein one end be equipped with under the suspension cable
The anchor line members of anchor head connection；
The pull rod is connect by anchor line members with the lower anchor head of the suspension cable, the other end and the steel wire bundle
Second connector connects.
Further, it is described to start the soft draft gear, it draws second force transfer mechanism and draws through the steel anchor box
Go out before the lower anchor head of the suspension cable, including step：
Start the jack, the pull rod is driven to enter the steel anchor box through drawing the steel wire bundle.
Further, it is described to start the soft draft gear, second force transfer mechanism is drawn through the steel anchor box
The lower anchor head of the suspension cable is drawn, including step：
The pull rod is pulled into steel anchor box by the steel wire bundle, and leads to the second moveable anchor institute of the jack
Locate position；
The locking relation of the steel wire bundle and jack is released, and passes through the anchor ring on second moveable anchor by pull rod
It is integrally connected with jack；
Continue the traction of the jack, the suspension cable is driven to enter the steel anchor box through drawing the pull rod；
Continue the traction of the jack, until drawing the lower anchor head of the suspension cable from the steel anchor box.
Wherein, the lower anchor head of the anchoring suspension cable, and second force transfer mechanism and actuating unit are released,
Including step：
The lower anchor head of the suspension cable is fixed on to the lower end of the steel anchor box using threaded connection；
Release the connection relation between second force transfer mechanism and the lower anchor head of the suspension cable；
Release the connection relation between the actuating unit and the steel anchor box.
Compared with prior art, the solution of the present invention has the following advantages：
(1) present invention provides a kind of beam-ends installation method of suspension cable, and second is combined especially by soft draft gear is arranged
Force transfer mechanism is implemented to draw anchoring to the beam-ends of suspension cable；Wherein, the arranging of the soft draft gear is included to jack, steel
Strand bundle is respective to be arranged and locks integrated arranging process between the two, by first matching soft draft gear in this programme
It is installed in place again after if, ensure that the stress of each position of steel wire bundle is identical, avoid due to steel wire bundle stress not
The problem of causing the tractive force that soft draft gear provides uneven, while strengthen the stability of soft draft gear.
(2) in a kind of beam-ends installation method of suspension cable provided by the invention, suspension cable is transported using roller mode, specifically
To install roller band on bridge floor, the lower anchor head through transporting anchor device traction suspension cable is sent suspension cable to steel anchor box by roller band
The process for nearby carrying out next step.In the working procedure, by roller band to the transport process of suspension cable, avoid due to oblique pull
Suo Zishen is bent or is in direct contact with bridge floor, causes that the protective case of suspension cable or damage strand may be damaged during transport
And the problem of reducing suspension cable service life and cable-stayed bridge stability.
(3) in a kind of beam-ends installation method of suspension cable provided by the invention, between soft draft gear and suspension cable
Tractive force transmits, and is completed using the second force transfer mechanism of third party.Second force transfer mechanism complete to soft draft gear and
Connection between the lower anchor head of suspension cable by the transition of the second force transfer mechanism, in the construction process, terminates in soft traction
Afterwards, can not rest and continue directly to draw firmly, work progress link up do not rest ensure that tractive force it is uniform, by soft traction transition
It is adapted to the constantly increased process of tractive force in the distraction procedure of suspension cable to hard traction, it is longer heavier has fully adapted to suspension cable
The problem of, simultaneously as the transition successively so that construction efficiency is high, and ensure that the precision of construction.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
It obtains significantly or is recognized by the practice of the present invention.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Significantly and it is readily appreciated that, wherein：
Schematic diagrames of the Fig. 1 for structure involved by method provided by one embodiment of the present invention, main presentation steel anchor box institute
The position at place.
Schematic diagrames of the Fig. 2 for structure involved by method provided by one embodiment of the present invention, main presentation installation procedure
In each component connection relation；
Fig. 3 is the schematic diagram of structure involved by method provided by one embodiment of the present invention, main presentation roller band
Structure；
Fig. 4 is the structure diagram in Fig. 3 A-A directions；
Fig. 5 is method flow diagram provided by one embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Suspension cable is made of the anchorage, intermediate drag-line force transmission element and protective materials three parts at both ends, becomes drag-line assembling
Part.The suspension cable used at present generally comprises parallel wire stay and parallel steel stranded wire drag-line, it is specific similary the characteristics of be
Anti-corrosion protection method includes wire galvanization and PE protective jackets.In the present embodiment, it will be installed on beam-ends in suspension cable 3
One end is known as lower anchor head 31.
With reference to Fig. 1,2,3,4 and 5, the embodiment of the present invention provides a kind of beam-ends installation method of suspension cable, due to suspension cable 1
The difference at inclined guy cable stretching end of cable-stayed bridge is depended in the installation procedure of beam-ends and different, in the present embodiment to be adapted to tensioning
The beam-ends of the suspension cable for beam-ends is held to be illustrated for installing.But the example, which does not represent, is defined in method provided by the invention only
It is installed suitable for beam-ends of the stretching end for the suspension cable of beam-ends, is equally applicable to the tensioning of other situations.Specifically, it is of the invention
The method of offer includes the following steps：
The soft draft gear that S01 arrangings are made of actuating unit and the first force transfer mechanism, and it is hoisted to beam-ends steel anchor box
It is installed under 01；
It is specifically, described that the soft draft gear being made of actuating unit and the first force transfer mechanism is arranged in step S01,
Including step：
The the first power transmission machine for providing the actuating unit of power by jack 12 and power being transmitted by steel wire bundle 11 is arranged
Structure；
Wherein, in the present embodiment, the arranging jack 12 the step of steel wire bundle 11 for equipment and material with preparing
Process, wherein the jack 11 is for providing tractive force, preferably YCW types, the specific punching with about two
Oil cylinder, the first moveable anchor in upper cylinder side and the composition (not shown) of the second moveable anchor in lower oil cylinder side.Specifically,
11 50~the 63MPa of rated oil pressure of jack, 2~101/mi of oil drain quantity n, corresponding hauling speed are 76~383mm/mi n,
It is embodied in Non-intermittent in distraction procedure and works continuously.Wherein described steel wire bundle 11 transmits thousand for soft draw in process
The tractive force that jin top 12 provides, are preferably arranged using the steel strand wires of several a diameter of 15.24mm, required radical according to
Hauling rope power be arranged, further, for ensure steel wire bundle 11 uniform force or every steel strand wires therein simultaneously stress,
It is tightened at pre-determined distance with adhesive plaster, the pre-determined distance is preferably 50cm in the present embodiment.Further, the steel
Strand bundle 11 is after the anabolic process by several steel strand wires is completed, and beam-ends lays connector, tool before and after steel wire bundle 11
Body, the first connector (not shown) being connect with the jack 12 is laid in one end wherein, and the other end is laid and the second power
The second connector (not shown) of transmission mechanism connection.First connector is adapted to and different components from the second connector
Connect and different, first connector is equipped with to carry out the fixed position of intermediate plate and progress with the jack 12
The position that nut is screwed on, second connector include the socket of the second force transfer mechanism of socket, and the socket is according to the
Bore, the material type of two force transfer mechanism connecting pins and set.Those skilled in the art pass through to 12 and second power of jack
The cognition of transmission mechanism would know that the difference of the first connector and the second connector, and the present embodiment will herein be described in detail.
The steel wire bundle 11 is inserted into the jack 12, and lock one.
Specifically, in the present embodiment, it is adapted to the arranging to soft draft gear, it is described that the steel wire bundle 11 is inserted into institute
Jack 12 is stated, and locks one, is included the following steps：
The jack 12 is inserted by carrying first connector one end traction steel wire bundle 11；
First connector is passed through into first moveable anchor and is locked；
In the locking process of the steel wire bundle 11 and the jack 11, using first will be carried in steel wire bundle 11
One end of connector is head, is inserted into the jack 12, and the first moveable anchor through jack 12 stretches out, and steel wire bundle 11 is drawn
Into jack 12, then steel wire bundle 11 is locked in jack 12 by using tool clamping piece and stop nut, is completed
The arranging process of integrated soft draft gear is locked by steel wire bundle 11 and jack 12.The arranging process ensure that is led by soft
Leading-in device provides the stability of tractive force.
It is arranged and the fixed anchor ring of the second force transfer mechanism on the second moveable anchor of the jack 12.
Preferably, for subsequently in traction process firmly, the jack 12 can be do not rest will during continuous work
Tractive force is transferred to the second force transfer mechanism, while soft draft gear is arranged, in the jack 12 and second power
Anchor ring is laid on second moveable anchor of transmission mechanism connection.
Specifically, it in step S01, is installed under soft draft gear described in the handling to beam-ends steel anchor 01 case, including
Step：
Under soft draft gear to beam-ends steel anchor box 01 described in handling；
The steel wire bundle 11 is drawn with second connector one end from 01 lower end of steel anchor box to upper end；
The jack 12 is installed on to the lower end of the steel anchor box 01.
With reference to Fig. 1, in the present embodiment, the soft draft gear being arranged is hoisted to 01 lower end of beam-ends steel anchor box and is completed and steel
The installation procedure of anchor case 01, in the installation process, first by the steel wire bundle 11 in soft draft gear from the of jack 12
The part (free end of steel wire bundle 11) stretched out in one moveable anchor through drawing from the bottom to the top inside steel anchor box 01, specially
Steel wire bundle 11 is entered with second connector one end (free end of steel wire bundle 11) by the lower end of steel anchor box 01, and from
It draws upper end；Then, the lower end for the jack 12 in soft draft gear being mounted on to steel anchor box 01 (is also referred to as steel anchor box 01
Tail end), it is visible with reference to Fig. 2；Further, the jack 12 is on the reaction frame 02 of the steel anchor box 01, this is anti-
Power frame 02 not only provides the construction space that construction personnel installs the beam-ends of suspension cable 3, even more can realize drop by reaction frame 02
Opposite force effect of the low jack 01 when providing tractive force, further improves the stability that soft draft gear provides tractive force.
S02 transports suspension cable 3, until the lower anchor head 31 of the suspension cable 3 is close to the steel anchor box 01；
Specifically, in step S02, the transport suspension cable 3, until the lower anchor head 31 of the suspension cable 3 is close to the steel
Anchor case 01, including step：
Fortune point is laid below the lower anchor head 31 of the suspension cable 3 at pre-determined distance；
Specifically, the fortune point of laying is to lay cord clip (not shown) close to the lower 31 tail end anchor cup position of anchor head,
During the transport of suspension cable 3, the tractive force born is larger, and the cord clip of laying must withstand 31 tail end of lower anchor head
Anchor cup so that suspension cable 3 transports the power that point (i.e. cord clip) is born during transport can pass to lower anchor head 31, effectively prevent
Sliding of the cord clip in distraction procedure on suspension cable 3, ensure that the stability of transport process, while also avoid due to cord clip
Sliding and cause suspension cable 3 protective case damage the problem of.Preferably, the cord clip is the installing component with fender, should
Fender is the rubber ring laid between cord clip and suspension cable 3, is conducive to increase frictional force therebetween, reduces cord clip
Slide probability.
Specifically, based on above-mentioned analysis, in the present embodiment, the lower 31 lower section pre-determined distance of anchor head is preferably 0.
The roller band 03 of a suspension cable 3 is laid on bridge floor；
Specifically, with reference to Fig. 3,4, the roller band 03 is is made of several vertical rotary cylinder devices, vertical rotary cylinder device
Number and laying spacing with suspension cable 3 transport distance and suspension cable 3 weight determine.The vertical rotary cylinder device
Temporary consolidation structure can be formed with 3 sleeve of suspension cable or with bridge floor, specifically depending on visual site operation situation.The roller band 03
Be laid be conducive to avoid due to suspension cable 3 itself be bent or be in direct contact with bridge floor and damage during transport suspension cable protect
The problem of sheath or damage strand.
The lower anchor head 31 of the suspension cable 3 is transported through the roller band 03 by drawing the fortune point using fortune anchor device
To 01 present position of steel anchor box.
Specifically, the fortune anchor device includes at least fortune anchor trolley, since the required tractive force of transport process constantly increases
Greatly, chain block can be used when close to steel anchor box 01 or when necessary or hoist engine cooperation fortune anchor trolley is realized to the suspension cable
3 traction is completed to transport process.
In this step, the traction that temporary consolidation is mainly formed by transporting the fortune laid on anchor device and suspension cable 3 point is closed
Suspension cable 3 (is also positioned over each vertical rotary cylinder of roller band 03 by system by 31 band of lower anchor head of suspension cable 3 to roller band 03
On device), transport suspension cable 3 through roller band 03.Preferably, the roller of each vertical rotary cylinder device is excellent in the roller band 03
The material for selecting frictional force small forms and (preservative oil transported conducive to suspension cable 3 further, can be also smeared on roller), reduces oblique
Due to the additional friction that roller band 03 generates during the transport of drag-line 3, the tractive force needed for transport process is reduced.
Specifically, 01 present position of steel anchor box is the position for connecting the suspension cable 3 with the second force transfer mechanism.
It is described to use fortune anchor device by drawing the fortune point by the lower anchor head 31 of the suspension cable 3 through the roller band 03
It is transported to after 01 present position of steel anchor box, further includes step：
Release the traction relationship of the fortune anchor device and suspension cable 3；
Specifically, to release the traction relationship being fixed temporarily between the cord clip laid on fortune anchor device and suspension cable 3.
Release the fortune point on the suspension cable 3.
Specifically, after for suspension cable 3 is drawn in place, suspension cable 3 is transported to the receptor withstood forces in the process, that is, cord clip
It releases.
S03 connects the lower anchor head 31 of the soft draft gear and the suspension cable 3 using the second force transfer mechanism；
Specifically, it is described that the soft draft gear and the suspension cable are connected using the second force transfer mechanism in step S03
Lower anchor head, including step：
The second force transfer mechanism that power is transmitted by pull rod 21 is arranged；The pull rod 21 wherein one end is equipped with and the suspension cable
The anchor line members that 3 lower anchor head 31 connects；
In the present embodiment, second force transfer mechanism preferably uses pull rod, and is adapted to steel anchor box 01 or suspension cable 3
The difference of model, the length or diameter of the pull rod 21 should be adaptively adjusted.Specifically, wherein one end of the pull rod 21
It is laid with the anchor line members being connect with the lower anchor head 31 of the suspension cable 3, which includes at least reducing nut, with into one
Reinforced pull rod 21 and the grip between the lower anchor head 31 of suspension cable 3 are walked, improves the stabilization that the second force transfer mechanism transmits tractive force
Property.
The pull rod 21 is connect by anchor line members with the lower anchor head 31 of the suspension cable 3, the other end is twisted with the steel
The second connector connection of harness 11.
Preferably, the stability for tractive force suffered by guarantee suspension cable 3, it is first that pull rod 21 and the steel wire bundle 11 is complete
It is integrally connected into after connection, then by pull rod 21 and the lower anchor head 31 of the suspension cable 3.Specifically, in the transport process of suspension cable 3
Before, in or after, can complete the connection of the pull rod 21 and the steel wire bundle 11, but after the transport process of suspension cable 3
When completing the process, it should ensure that suspension cable 3 is constant by the tractive force of fortune anchor device in the process, then in the drawing
After bar 21 completes the connection with the steel wire bundle 11, then by 31 transposing of lower anchor head of suspension cable 3 in pull rod 21, completion connection
Afterwards, the traction relationship between fortune anchor device and suspension cable 3 is just released.
In the present embodiment, after above-mentioned steps S03 is completed, the preparation rank in the beam-ends installation procedure of suspension cable is completed
Section, thereafter process by do not rest continuous work jack 12 provide tractive force, complete suspension cable 3 lower anchor head 31 drawn
Process in place.
S04 starts the soft draft gear, and traction second force transfer mechanism is drawn described oblique through the steel anchor box 01
The lower anchor head 31 of drag-line 3；
Specifically, it is described to start the soft draft gear in step S04, it draws described in the second force transfer mechanism warp
Before steel anchor box 01 draws the lower anchor head 31 of the suspension cable 3, including step：
Start the jack 12, the pull rod 21 is driven to enter the steel anchor box 01 through drawing the steel wire bundle 11.
When being mounted on steel anchor box 01 due to the soft draft gear, inside that the steel wire bundle 11 passes through steel anchor box 01
Structure is stretched out, thus the connection process completed of the second connector of the steel wire bundle 11 and institute's pull rod 21 steel anchor box 01 it
Outside, and when startup jack 12 starts to draw process, the tractive force that steel wire bundle 11 is granted by jack 12 is slowly in steel
The running from the upper end of steel anchor box 01 to lower end is carried out in anchor case 01, so as to draw the pull rod 21 slowly to the steel anchor box 01
It is mobile, and enter from the upper end of steel anchor box 01 (with reference to Fig. 2).
Further, it is described to start the soft draft gear in step S04, second force transfer mechanism is drawn through institute
The lower anchor head 31 that steel anchor box 01 draws the suspension cable 3 is stated, including step：
The pull rod 21 is pulled into steel anchor box 01, and lead to the second of the jack 12 by the steel wire bundle 11
Moveable anchor present position；
In the pull rod 21 constantly by the tractive force transmitted from steel wire bundle 11 after, will slowly complete from steel
Moving process from the upper end of anchor case 01 to lower end, and in moving, when steel wire bundle 11 slowly exits the steel anchor box 01, immediately
At the time of the second tool anchor location of the jack 12 being in for pull rod 21, the beam-ends installation for the suspension cable 3 that is near completion at this time
The process of soft traction in process.
The locking relation of the steel wire bundle 11 and jack 12 is released, and passes through the anchor ring on second moveable anchor and incites somebody to action
Pull rod 21 is integrally connected with jack 12；
Specifically, when in previous step, the steel wire bundle 11 pull rod 21 is connect with steel wire bundle 11 one
End by the second tool anchor location of soft traction traction to the jack 12, needs to lay on the second moveable anchor at this time
Anchor ring is connect with pull rod 21, is realized by the second force transfer mechanism that jack 12 is formed with pull rod 21 and soft draft gear phase interworking
The arranging process of conjunction at this point, soft traction process has been fully completed, and is transitioned into hard traction process so that jack 12 provided
Tractive force is directly delivered on pull rod 21.
Continue the traction of the jack 12, the suspension cable 3 is driven to enter the steel anchor box through drawing the pull rod 21
01；
With reference to Fig. 2, into when drawing in process firmly, the tractive force that jack 12 is provided will be transferred directly to pull rod 21,
And since pull rod 21 is by the connection of the anchor line members being arranged and the lower anchor head 31 of suspension cable 3, realize pull rod 21 and oblique pull
The traction relationship being integrally connected of rope 3.When pull rod 21 is pulled power from the upper end of steel anchor box 01 into lower end moving process, tiltedly
The tractive force transmitted by pull rod 21 is slowly entered the inside of steel anchor box 01 by drag-line 3 from the upper end of steel anchor box 01.
Continue the traction of the jack 12, until drawing the lower anchor head 31 of the suspension cable 3 from the steel anchor box 01.
In lasting jack 12 continues continuous operation, pull rod 21 will be completed to exit the work of traction firmly of steel anchor box 01
Sequence, when pull rod 21 has reached 12 present position of jack with one end that suspension cable 3 is connect in slow moving process, pull rod 21 is
It will be exited from the lower end of steel anchor box 01, during the exiting of pull rod 21, since there is connection one with the lower anchor head 31 of suspension cable 3
The traction relationship of body, the lower anchor head 31 of the suspension cable 3 will be stretched out from the lower end of steel anchor box 01 together with pull rod 21.
S05 anchors the lower anchor head 31 of the suspension cable 3, and releases second force transfer mechanism and soft draft gear,
To complete the beam-ends installation procedure of single suspension cable 3.
The lower anchor head 31 of the anchoring suspension cable 3, and second force transfer mechanism and actuating unit are released, it wraps
Include step：
The lower anchor head 31 of the suspension cable 3 is fixed on to the lower end of the steel anchor box 01 using threaded connection；Specifically, it is
After the lower anchor head 31 of the suspension cable 3 is drawn in place, lower anchor head 31 is anchored on steel anchor box 01.
Release the connection relation between second force transfer mechanism and the lower anchor head 31 of the suspension cable 3；
At this point, what is released is specially the connection relation between the anchor line members of pull rod 21 and the lower anchor head 31 of suspension cable 3.
Contact the connection relation between the soft draft gear and the steel anchor box 01.
At this point, what is released is specially the connection relation between jack 12 and steel anchor box 01, and the steel in soft draft gear
Strand bundle 11 releases the locking relation between jack 12 preferably when exiting steel anchor box 01.
In embodiments of the present invention, a kind of beam-ends installation method of suspension cable is provided, by combine soft draft gear with
And second force transfer mechanism implement to draw anchoring to the beam-ends of suspension cable, solve due to anchor force is weak, suspension cable is heavier or compared with
Long the problem of bringing construction inconvenient.In embodiment provided by the invention, soft traction process to the transition of hard traction process
Naturally, ensure power transmit stability simultaneously, ensure that suspension cable beam-ends constantly suffered by distraction procedure tractive force it is steady
It is qualitative.
Above-described embodiment is only some embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. the beam-ends installation method of a kind of suspension cable, which is characterized in that including step：
The soft draft gear being made of actuating unit and the first force transfer mechanism is arranged, and is hoisted to the progress of beam-ends steel anchor box lower end
Installation；
Suspension cable is transported, makes the closely described steel anchor box of the head rest that casts anchor of the suspension cable；
The lower anchor head of the soft draft gear and the suspension cable is connected using the second force transfer mechanism；
Start the soft draft gear, draw second force transfer mechanism and draw casting anchor for the suspension cable through the steel anchor box
Head；
The lower anchor head of the suspension cable is anchored, and releases second force transfer mechanism and actuating unit, it is single oblique to complete
The beam-ends installation procedure of drag-line.
2. the beam-ends installation method of suspension cable according to claim 1, which is characterized in that it is described be arranged by actuating unit and
The soft draft gear of first force transfer mechanism composition, including step：
The first force transfer mechanism for providing the actuating unit of power by jack and power being transmitted by steel wire bundle is arranged；
The steel wire bundle is inserted into the jack, and lock one.
3. the beam-ends installation method of suspension cable according to claim 2, which is characterized in that the jack is by about two
The oil cylinder of cooperation, the first moveable anchor in upper cylinder side and the composition of the second moveable anchor in lower oil cylinder side；The steel twists
Wherein one end of harness is laid with the first connector being connect with the jack, and the other end is laid with to be transmitted with second power
Second connector of mechanism connection；It is described that the steel wire bundle is inserted into the jack, and one is locked, including step：
The steel wire bundle insertion jack is drawn by carrying first connector one end；
First connector is passed through into first moveable anchor and is locked；
It is arranged and the fixed anchor ring of the second force transfer mechanism on the second moveable anchor of the jack.
4. the beam-ends installation method of suspension cable according to claim 3, which is characterized in that soft draft gear described in handling is extremely
It is installed under beam-ends steel anchor box, including step：
Under soft draft gear to beam-ends steel anchor box described in handling；
The steel wire bundle is drawn with second connector one end from the steel anchor box lower end to upper end；
The jack is installed on to the lower end of the steel anchor box.
5. the beam-ends installation method of suspension cable according to claim 1, which is characterized in that the transport suspension cable, until institute
The closely described steel anchor box of the head rest that casts anchor of suspension cable is stated, including step：
Fortune point is laid below the lower anchor head of the suspension cable at pre-determined distance；
The roller band of a suspension cable is laid on bridge floor；
The lower anchor head of the suspension cable is transported to by the steel through the roller band by drawing the fortune point using fortune anchor device
Anchor case present position.
6. the beam-ends installation method of suspension cable according to claim 5, which is characterized in that described to be passed through using fortune anchor device
Draw it is described fortune point the lower anchor head of the suspension cable is transported to the steel anchor box present position through the roller band after, also wrap
Include step：
Release the traction relationship of the fortune anchor device and suspension cable；
Release the fortune point on the suspension cable.
7. the beam-ends installation method of suspension cable according to claim 4, which is characterized in that described that machine is transmitted using the second power
Structure connects the lower anchor head of the soft draft gear and the suspension cable, including step：
The second force transfer mechanism that power is transmitted by pull rod is arranged；The pull rod wherein one end is equipped with the lower anchor head with the suspension cable
The anchor line members of connection；
The pull rod is connect by anchor line members with the lower anchor head of the suspension cable, the other end and the second of the steel wire bundle
Connector connects.
8. the beam-ends installation method of suspension cable according to claim 7, which is characterized in that described to start the soft traction dress
It puts, before drawing the lower anchor head that second force transfer mechanism draws the suspension cable through the steel anchor box, including step：
Start the jack, the pull rod is driven to enter the steel anchor box through drawing the steel wire bundle.
9. the beam-ends installation method of suspension cable according to claim 8, which is characterized in that described to start the soft traction dress
It puts, the lower anchor head that second force transfer mechanism draws the suspension cable through the steel anchor box is drawn, including step：
The pull rod is pulled into steel anchor box, and lead to position residing for the second moveable anchor of the jack by the steel wire bundle
It puts；
The locking relation of the steel wire bundle and jack is released, and passes through the anchor ring on second moveable anchor by pull rod and thousand
Jin top is integrally connected；
Continue the traction of the jack, the suspension cable is driven to enter the steel anchor box through drawing the pull rod；
Continue the traction of the jack, until drawing the lower anchor head of the suspension cable from the steel anchor box.
10. the beam-ends installation method of suspension cable according to claim 1, which is characterized in that the anchoring suspension cable
Lower anchor head, and second force transfer mechanism and actuating unit are released, including step：
The lower anchor head of the suspension cable is fixed on to the lower end of the steel anchor box using threaded connection；
Release the connection relation between second force transfer mechanism and the lower anchor head of the suspension cable；
Release the connection relation between the actuating unit and the steel anchor box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711434389.0A CN108130859B (en) | 2017-12-26 | 2017-12-26 | Beam end installation method of stay cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711434389.0A CN108130859B (en) | 2017-12-26 | 2017-12-26 | Beam end installation method of stay cable |
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| CN108130859A true CN108130859A (en) | 2018-06-08 |
| CN108130859B CN108130859B (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711434389.0A Active CN108130859B (en) | 2017-12-26 | 2017-12-26 | Beam end installation method of stay cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241736A (en) * | 2019-06-17 | 2019-09-17 | 中交路桥华南工程有限公司 | Suspension cable Fast Installation construction method |
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| CN101195988A (en) * | 2007-12-27 | 2008-06-11 | 中交第二航务工程局有限公司 | Soft, hard composite three-leveltraction technique for stay cables and connecting device thereof |
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| CN108130859B (en) | 2020-06-09 |
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Denomination of invention: Installation method of beam end for diagonal cables Effective date of registration: 20231220 Granted publication date: 20200609 Pledgee: China Co. truction Bank Corp Zhongshan branch Pledgor: ROAD & BRIDGE SOUTH CHINA ENGINEERING Co.,Ltd. Registration number: Y2023980072903 |