CN107747279A - A kind of constructing device and implementation engineering method based on group's anchor system single tendon stretch and tune rope - Google Patents
A kind of constructing device and implementation engineering method based on group's anchor system single tendon stretch and tune rope Download PDFInfo
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- CN107747279A CN107747279A CN201710731102.4A CN201710731102A CN107747279A CN 107747279 A CN107747279 A CN 107747279A CN 201710731102 A CN201710731102 A CN 201710731102A CN 107747279 A CN107747279 A CN 107747279A
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- presstressed reinforcing
- reinforcing 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
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Abstract
Based on group's anchor system single tendon stretch and adjust the constructing device of rope the invention discloses a kind of and implement engineering method, pass through theoretical calculation or installation monitoring sensor during construction, form stretching rope Force control system.During tensioning, hydraulic power unit control jack tension presstressed reinforcing steel, continuously tensioning is realized by the alternating anchoring of two anchor clamps, until presstressed reinforcing steel target control stress, computer system sends hydraulic power unit pressurize signal control hydraulic power unit.After the information that the signal or monitoring sensor feedback of computer system output are returned calculates analysis, send top pressure operative signals and control hydraulic top depressor to hydraulic power unit, realize that anchor clamp anchors automatically.The device compensate for manually installed intermediate plate, the shortcomings of installing space deficiency, anchor stress accuracy be not high, group's anchor system cable force adjustment is difficult, group's anchor presstressed reinforcing steel prestressing force discreteness is big, mechanized construction degree is not high, efficiency of construction is improved, is advantageous to standardization, precision construction.
Description
Technical field
The invention belongs to technical field of civil engineering, and in particular to a kind of based on group's anchor system single tendon stretch and to adjust rope to apply
Engineering method is put and implemented to frock.
Background technology
Bridge structure external prestressing steels and group's anchor system suspension cable are substantially all containing coating layer-zinc-plated, spraying epoxy
Deng the uniformity of presstressed reinforcing steel stress and anchoring effect (slippage) are being advised in effective prestress, group's anchor under external prestressing anchor
Fan Zhongyou definitely requires that at present, external prestressing steels and suspension cable use spacing stretching method more when installing tensioning, due to spacing
Limitation, cause in stretching process, coating layer is scraped in anchor clamp alveolus, seriously affects the anchoring effect of anchor clamp
Rate, stretching control force is influenceed either environment influences or temporary load(ing) influences etc. by malformation during tensioning, have an impact because
Element can all have influence on the accuracy of stretching control force；Hand fit " is struck using installation intermediate plate anchoring is beaten in stretching process
Hit " it is not energetic, cause the intermediate plate installation uniformity limited；Top pressure, work are carried out using other equipment again substantially after the completion of tensioning
Sequence is complicated, and intermediate plate pressure on top surface fails quantified controlling；When group's anchor cable power adjusts rope, group's anchor presstressed reinforcing steel spacing is small, manual operation
Insufficient space, it is unfavorable for cable force adjustment.
At present the shortcomings that technique：1st, it is manually urgent to damage intermediate plate, and two halves intermediate plate squeezes into locus after anchor hole
It is asymmetric；2nd, presstressed reinforcing steel spacing is small, and operating space is limited；3rd, artificial urgent power is uneven, causes presstressed reinforcing steel stress loss
It is larger, directly affect Suo Li discretenesses；4th, theoretical calculation not can determine that work progress influence factor to the equal of presstressed reinforcing steel Suo Li
Even property, intermediate plate installing force fail to quantify, and intermediate plate top pressure is not energetic；5th, construction automation deficiency, intelligent deficiency of constructing.
The content of the invention
The present invention for existing external prestressing steels and suspension cable present in tensioning it is artificial it is urgent cause intermediate plate damage,
The uneven influence Suo Li discretenesses of urgent power, the problems such as intermediate plate installation and top pressure be not energetic, there is provided one kind is based on group's anchor system
Single tendon stretch and the constructing device and implementation engineering method for adjusting rope.
The present invention takes following technical scheme to realize above-mentioned purpose：
A kind of constructing device based on group's anchor system single tendon stretch and tune rope, it is characterised in that including stretching end anchor clamp
(1), support pad holder strut (3), support pad holder panel (4), pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion supporting
Cylinder (7), interim anchor clamp I (8), interim anchor clamp II (9), jack (11), hydraulic power unit (12), computer system (13),
Fixing end anchor clamp (15) and group's anchor body drag-line (16), group's anchor body drag-line (16) connection stretching end anchor clamp (1) and fixing end anchor
Fixture (15)；The both ends of support pad holder strut (3) anchor slab I (101) and support pad holder panel with stretching end anchor clamp (1) respectively
(4) it is connected；Pushing tow position-limiting tube (5) is coupled through support pad holder panel (4) with hydraulic top depressor (6) piston, hydraulic top depressor (6)
Supporting cylinder (7) is changed by stroke with centre-hole jack (11) to be coupled；The interim anchor clamp of installation in stroke conversion supporting cylinder (7)
I (8), jack (11) are provided with interim anchor clamp II (9) with hydraulic top depressor (6) non-contacting one end；Hydraulic power unit (12)
It is connected respectively with jack (11), hydraulic top depressor (6) and computer system (13).Its principle is by computer system
(13) the whole beam force in control cable F of input group's anchor body drag-line (16) and its lower group anchor body drag-line (16) the anchor point relative shift of effect in
Change in temperature Δ t under Δ l, operating mode, computer system (13) (14) first stretching control forces of output presstressed reinforcing steel are F1, second
Root stretching control force F2, n-th stretching control force Fn, n represent presstressed reinforcing steel radical；Computer system (13) basis
The stretching control force of presstressed reinforcing steel (14) sends signal control hydraulic power unit (12), and hydraulic power unit (12) passes through force control hydraulic pressure
Top pressing device (6) push pushing tow position-limiting tube (5), intermediate plate is promoted anchor hole, completes tensioning and top pressure process.
Further, the constructing device based on group's anchor system single tendon stretch and tune rope, in addition to sensor (2) and jury anchor
Fixture III (10), interim anchor clamp III (10) are pressed on sensor (2), and sensor (2) is connected with computer system (13)；Pass
Sensor (2) is arranged on first presstressed reinforcing steel (1601) on group's anchor body drag-line (16), and sensor (2) installation site is tensioning
Hold anchor slab I (101) end face, anchor slab II (1501) end face of fixing end anchor clamp (15), stretching end anchor clamp of anchor clamp (1)
(1) upper any place on first presstressed reinforcing steel (1601) between fixing end fixture (15).The device is adopted by sensor (2)
The force in control cable that the malformation of first presstressed reinforcing steel (1601) of collection is formed, feeds back to computer system (13), is that other are pre-
Stress rib provides reference data.
Further, the constructing device based on group's anchor system single tendon stretch and tune rope also includes sensor (2), sensor
(2) it is connected with computer system (13)；Sensor (2) is arranged on the anchor of fixing end anchor clamp (15) and fixing end anchor clamp (15)
Any place between backing plate II (1502) or between stretching end anchor clamp (1) and fixing end anchor clamp (15).The device passes through biography
Sensor (2) gathers the force in control cable that the malformation of mounted presstressed reinforcing steel is formed, and feeds back to computer system (13), is it
He provides reference data by presstressed reinforcing steel.
Further, support pad holder panel (4) section constructs for multi-hole position plate, and hole position arranges phase with anchor clamp (1) hole position
Together, passing through in order to presstressed reinforcing steel.
Further, pushing tow position-limiting tube (5) is cylindrical structure, and its external diameter is smaller than the aperture of support pad holder panel (4), pushing tow
The height of position-limiting tube (5) is corresponding with support pad holder height, so that pushing tow position-limiting tube (5) is in the hole of support pad holder panel (4)
Move freely.
Further, stroke changes supporting cylinder (7) as tube-in-tube structure, to meet that heart jack (11) realizes contracting cylinder backhaul.
Further, hydraulic top depressor (6) is divided into front pressuring plate (601), top pressing device main body (602), rear fender (603) three
Divide construction, front pressuring plate (601) is pressed on support pad holder panel (4), and rear fender (6-3) is with stroke conversion supporting cylinder (7) with screw thread
Form is connected, and hydraulic top depressor main body (602) both ends are connected with front pressuring plate (601) and rear fender (603) respectively, front pressuring plate
(601) edge face structure is shaped as quincunx, avoids interfering with surrounding presstressed reinforcing steel.
A kind of implementation engineering method based on group's anchor system single tendon stretch and the constructing device for adjusting rope, it is characterised in that step is such as
Under：Step 1: during presstressed reinforcing steel (14) initial tensioning, input group anchor body drag-line (16) whole beam control system in computer system (13)
Temperature variation Δ under Suo Li F, whole beam force in control cable F effect lower group anchor body drag-line (16) anchor point relative shift Δ l, operating mode
T, by computer system (13) output (14) first stretching control force F1 of presstressed reinforcing steel to be tensioned, second stretching control force
F2, n-th stretching control force Fn, n represent presstressed reinforcing steel radical；Step 2: presstressed reinforcing steel (14) passes through fixture
It is anchored on stretching end anchor clamp (1) and fixing end anchor clamp (15), jack (11), stroke conversion support tube (7), hydraulic top
Depressor (6) and pushing tow position-limiting tube (5) combination are integral, all penetrate presstressed reinforcing steel (14), wherein pushing tow position-limiting tube (5) is worn simultaneously
Support pad holder panel (4) is crossed, reaches work clip sheet front end；Step 3: during presstressed reinforcing steel (14) tensioning, presstressed reinforcing steel (14) and folder
Piece is synchronously pulled out, and is in after extraction by pushing tow position-limiting tube (5) limitation intermediate plate in anchor hole, by interim anchor clamp I (8), temporarily
The alternating of anchor clamp II (9), which anchors, realizes continuously tensioning, and work clip sheet is in vacant state during continuously tensioning；Step 4:
In stretching process, computer system (13) sends signal control hydraulic power unit according to the stretching control force of presstressed reinforcing steel (14)
(12), hydraulic power unit (12) pushes pushing tow position-limiting tube (5) by force control hydraulic pressure top pressing device (6), and intermediate plate is promoted anchor hole, complete
Into single tension and top pressure；Step 5: removed after completing tensioning and top pressure support pad holder strut (3), support pad holder panel (4),
Pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion supporting cylinder (7), interim anchor clamp I (8), interim anchor clamp II (9),
Jack (11), is displaced to next presstressed reinforcing steel to be tensioned, and repeat step two arrives step 5.
A kind of implementation engineering method based on group's anchor system single tendon stretch and the constructing device for adjusting rope, it is characterised in that step is such as
Under：Step 1: during presstressed reinforcing steel (14) initial tensioning, according to force in control cable install sensor (2)；Step 2: presstressed reinforcing steel
(14) it is anchored at by fixture on stretching end anchor clamp (1) and fixing end anchor clamp (15), jack (11), stroke conversion
Support tube (7), hydraulic top depressor (6) and pushing tow position-limiting tube (5) combination are integral, presstressed reinforcing steel (14) are all penetrated, wherein pushing up
Position-limiting tube (5) is pushed away also cross support pad holder panel (4), reaches work clip sheet front end；Step 3: presstressed reinforcing steel (14) tensioning
When, presstressed reinforcing steel (14) and intermediate plate are synchronously pulled out, and are in anchor hole, are passed through by pushing tow position-limiting tube (5) limitation intermediate plate after extraction
Interim anchor clamp I (8), the alternating of interim anchor clamp II (9) anchor and realize continuously tensioning, during continuously tensioning at work clip sheet
In vacant state；Step 4: in stretching process, the cable tensios control Suo Li of other presstressed reinforcing steels gathers first by sensor (2)
The force in control cable that the malformation of presstressed reinforcing steel (1601) is formed, feeds back to computer system (13), now computer system
(13) signal control hydraulic power unit (12) is sent, hydraulic power unit (12) pushes pushing tow by force control hydraulic pressure top pressing device (6) and limited
Position pipe (5), intermediate plate is promoted anchor hole, completes single tension and top pressure；Step 5: remove support pad holder strut (3), support pad holder
Panel (4), pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion supporting cylinder (7), interim anchor clamp I (8), interim grip
Have II (9), jack (11), be displaced to next presstressed reinforcing steel, repeat step two arrives step 5.
A kind of implementation engineering method based on group's anchor system single tendon stretch and the constructing device for adjusting rope, it is characterised in that step is such as
Under：Step 1: during presstressed reinforcing steel (14) initial tensioning, according to force in control cable install sensor (2)；Step 2: presstressed reinforcing steel
(14) it is anchored at by fixture on stretching end anchor clamp (1) and fixing end anchor clamp (15), jack (11), stroke conversion
Support tube (7), hydraulic top depressor (6) and pushing tow position-limiting tube (5) combination are integral, presstressed reinforcing steel (14) are all penetrated, wherein pushing up
Position-limiting tube (5) is pushed away also cross support pad holder panel (4), reaches work clip sheet front end；Step 3: presstressed reinforcing steel (14) tensioning
When, presstressed reinforcing steel (14) and intermediate plate are synchronously pulled out, and are in anchor hole, are passed through by pushing tow position-limiting tube (5) limitation intermediate plate after extraction
Interim anchor clamp I (8), the alternating of interim anchor clamp II (9) anchor and realize continuously tensioning, during continuously tensioning at work clip sheet
In vacant state；Step 4: in stretching process, the cable tensios control Suo Li of other presstressed reinforcing steels has been installed by sensor (2) collection
Presstressed reinforcing steel malformation formed force in control cable, feed back to computer system (13), now computer system (13) send out
Go out signal control hydraulic power unit (12), hydraulic power unit (12) pushes pushing tow position-limiting tube by force control hydraulic pressure top pressing device (6)
(5) intermediate plate, is promoted anchor hole, completes single tension and top pressure；Step 5: remove support pad holder strut (3), support pad holder panel
(4), pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion supporting cylinder (7), interim anchor clamp I (8), interim anchor clamp II
(9), jack (11), are displaced to next presstressed reinforcing steel, and repeat step two arrives step 5.
The beneficial effects of the invention are as follows：
1st, the serialization of tension of prestressed tendon and top pressure anchoring is realized, drastically increases operating efficiency.
2nd, solve that group anchor system cable force adjustment is difficult, group's anchor presstressed reinforcing steel prestressing force discreteness is big and intermediate plate anchorage stress
It is difficult to the problem of quantified controlling.
3rd, pushing tow position-limiting tube can make two halves intermediate plate end face it is concordant enter anchor hole, it is more concordant to anchor later end face,
It is easy to standardized construction.
4th, without suppressing anchoring work clip sheet repeatedly, only need to when tensioning reaches target Suo Li disposable top pressure anchoring clamping plate
, reduce presstressed reinforcing steel coating layer and scraped in anchor clamp alveolus, can preferably ensure the anchoring efficiency of anchor clamp.
5th, realize and tension of prestressed tendon effective stress is precisely controlled, be easy to the construction that becomes more meticulous.
Brief description of the drawings
Fig. 1 is the constructing device based on group's anchor system single tendon stretch and tune rope of the present invention controlled by theoretical calculation
Organigram.
Fig. 2 is that the constructing device construction based on group's anchor system single tendon stretch and tune rope that the present invention is controlled by sensor shows
It is intended to.
Fig. 3 is that the constructing device based on group's anchor system single tendon stretch and tune rope that the present invention is controlled by sensor uses shape
Schematic diagram under state.
Fig. 4 is that sensor is installed on admittedly in the constructing device of the present invention based on group's anchor system single tendon stretch and tune rope
Schematic diagram during the anchor clamp end face of fixed end.
Fig. 5 is that of the present invention be installed on based on group's anchor system single tendon stretch with sensor in the constructing device for adjusting rope is opened
Schematic diagram when between pull end and fixing end anchor clamp on drag-line.
Fig. 6 is that sensor is installed on anchor in the constructing device of the present invention based on group's anchor system single tendon stretch and tune rope
Schematic diagram when between fixture and anchor plate during device.
Fig. 7 is hydraulic top depressor structure in the constructing device of the present invention based on group's anchor system single tendon stretch and tune rope
Figure.
In figure, 1, stretching end anchor clamp；101st, anchor slab I；102nd, anchor plate I；2nd, sensor；3rd, support pad holder strut；4、
Support pad holder panel；5th, pushing tow position-limiting tube；6th, hydraulic top depressor；7th, stroke conversion supporting cylinder；8th, interim anchor clamp I；9th, it is interim
Anchor clamp II；10th, interim anchor clamp III；11st, jack；12nd, hydraulic power unit；13rd, computer system；14th, presstressed reinforcing steel；15、
Fixing end anchor clamp；1501st, anchor slab II；1502nd, anchor plate II；16th, group's anchor body drag-line；1601st, first presstressed reinforcing steel.
Embodiment
The present invention is described in detail by 1-7 below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of constructing device based on group's anchor system single tendon stretch and tune rope, including stretching end anchor clamp
(1), support pad holder strut (3), support pad holder panel (4), pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion supporting
Cylinder (7), interim anchor clamp I (8), interim anchor clamp II (9), jack (11), hydraulic power unit (12), computer system (13),
Fixing end anchor clamp (15) and group's anchor body drag-line (16), group's anchor body drag-line (16) connection stretching end anchor clamp (1) and fixing end anchor
Fixture (15)；The both ends of support pad holder strut (3) anchor slab I (101) and support pad holder panel with stretching end anchor clamp (1) respectively
(4) it is connected；Pushing tow position-limiting tube (5) is coupled through support pad holder panel (4) with hydraulic top depressor (6) piston, hydraulic top depressor (6)
Supporting cylinder (7) is changed by stroke with centre-hole jack (11) to be coupled；The interim anchor clamp of installation in stroke conversion supporting cylinder (7)
I (8), jack (11) are provided with interim anchor clamp II (9) with hydraulic top depressor (6) non-contacting one end；Hydraulic power unit (12)
It is connected respectively with jack (11), hydraulic top depressor (6) and computer system (13).The step of device construction method, is as follows：
Step 1: during presstressed reinforcing steel (14) initial tensioning, input group's anchor body drag-line (16) whole beam control cord in computer system (13)
Temperature variation Δ t under power F, whole beam force in control cable F effect lower group anchor body drag-line (16) anchor point relative shift Δ l, operating mode,
By computer system (13) output (14) first stretching control force F1 of presstressed reinforcing steel to be tensioned, second stretching control force
F2, n-th stretching control force Fn, n represent presstressed reinforcing steel radical；Step 2: presstressed reinforcing steel (14) passes through fixture
It is anchored on stretching end anchor clamp (1) and fixing end anchor clamp (15), jack (11), stroke conversion support tube (7), hydraulic top
Depressor (6) and pushing tow position-limiting tube (5) combination are integral, all penetrate presstressed reinforcing steel (14), wherein pushing tow position-limiting tube (5) is worn simultaneously
Support pad holder panel (4) is crossed, reaches work clip sheet front end；Step 3: during presstressed reinforcing steel (14) tensioning, presstressed reinforcing steel (14) and folder
Piece is synchronously pulled out, and is in after extraction by pushing tow position-limiting tube (5) limitation intermediate plate in anchor hole, by interim anchor clamp I (8), temporarily
The alternating of anchor clamp II (9), which anchors, realizes continuously tensioning, and work clip sheet is in vacant state during continuously tensioning；Step 4:
In stretching process, computer system (13) sends signal control hydraulic power unit according to the stretching control force of presstressed reinforcing steel (14)
(12), hydraulic power unit (12) pushes pushing tow position-limiting tube (5) by force control hydraulic pressure top pressing device (6), and intermediate plate is promoted anchor hole, complete
Into single tension and top pressure；Step 5: removed after completing tensioning and top pressure support pad holder strut (3), support pad holder panel (4),
Pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion supporting cylinder (7), interim anchor clamp I (8), interim anchor clamp II (9),
Jack (11), is displaced to next presstressed reinforcing steel to be tensioned, and repeat step two arrives step 5.
As shown in Figure 2-5, a kind of constructing device based on group's anchor system single tendon stretch and tune rope, including stretching end anchor clamp
(1), sensor (2), support pad holder strut (3), support pad holder panel (4), pushing tow position-limiting tube (5), hydraulic top depressor (6), OK
Journey conversion supporting cylinder (7), interim anchor clamp I (8), interim anchor clamp II (9), interim anchor clamp III (10), jack (11),
Hydraulic power unit (12), computer system (13), fixing end anchor clamp (15) and group's anchor body drag-line (16), group's anchor body drag-line (16) is even
Connect stretching end anchor clamp (1) and fixing end anchor clamp (15)；The both ends of support pad holder strut (3) respectively with stretching end anchor clamp
(1) anchor slab I (101) is connected with support pad holder panel (4)；Pushing tow position-limiting tube (5) passes through support pad holder panel (4) and hydraulic top
Depressor (6) piston is coupled, and hydraulic top depressor (6) is changed supporting cylinder (7) by stroke and is coupled with centre-hole jack (11)；Stroke
The interim anchor clamp I (8) of installation, jack (11) are provided with hydraulic top depressor (6) non-contacting one end in conversion supporting cylinder (7)
Interim anchor clamp II (9)；Hydraulic power unit (12) respectively with jack (11), hydraulic top depressor (6) and computer system (13) phase
Even；Interim anchor clamp III (10) is pressed on sensor (2), and sensor (2) is connected with computer system (13)；Sensor (2) is pacified
On first presstressed reinforcing steel (1601) on group's anchor body drag-line (16), sensor (2) installation site is stretching end anchor clamp
(1) anchor slab I (101) end face, anchor slab II (1501) end face of fixing end anchor clamp (15), stretching end anchor clamp (1) and fixation
Any place on first presstressed reinforcing steel (1601) between end anchor clamp (15).The step of being constructed using the device is as follows：Step 1:
During presstressed reinforcing steel (14) initial tensioning, according to force in control cable install sensor (2)；Step 2: presstressed reinforcing steel (14) passes through work
Fixture is anchored on stretching end anchor clamp (1) and fixing end anchor clamp (15), jack (11), stroke conversion support tube (7), liquid
Bear down on one depressor (6) and pushing tow position-limiting tube (5) combination it is integral, all penetrate presstressed reinforcing steel (14), wherein pushing tow position-limiting tube (5) is same
When pass through support pad holder panel (4), reach work clip sheet front end；Step 3: during presstressed reinforcing steel (14) tensioning, presstressed reinforcing steel (14)
Synchronously be pulled out with intermediate plate, after extraction by pushing tow position-limiting tube (5) limitation intermediate plate be in anchor hole, by interim anchor clamp I (8),
The alternating of interim anchor clamp II (9), which anchors, realizes continuously tensioning, and work clip sheet is in vacant state during continuously tensioning；Step
4th, in stretching process, the cable tensios control Suo Li of other presstressed reinforcing steels is by sensor (2) first presstressed reinforcing steel (1601) of collection
The force in control cable that malformation is formed, feeds back to computer system (13), and now computer system (13) sends signal control liquid
Press pump station (12), hydraulic power unit (12) push pushing tow position-limiting tube (5) by force control hydraulic pressure top pressing device (6), intermediate plate are promoted
Anchor hole, complete single tension and top pressure；Step 5: remove support pad holder strut (3), support pad holder panel (4), pushing tow position-limiting tube
(5), hydraulic top depressor (6), stroke conversion supporting cylinder (7), interim anchor clamp I (8), interim anchor clamp II (9), jack
(11) next presstressed reinforcing steel, is displaced to, repeat step two arrives step 5.
As shown in fig. 6, a kind of constructing device based on group's anchor system single tendon stretch and tune rope, including stretching end anchor clamp
(1), sensor (2), support pad holder strut (3), support pad holder panel (4), pushing tow position-limiting tube (5), hydraulic top depressor (6), OK
Journey conversion supporting cylinder (7), interim anchor clamp I (8), interim anchor clamp II (9), jack (11), hydraulic power unit (12), computer
System (13), fixing end anchor clamp (15) and group's anchor body drag-line (16), group's anchor body drag-line (16) connection stretching end anchor clamp (1) and
Fixing end anchor clamp (15)；The anchor slab I (101) with stretching end anchor clamp (1) and the support respectively of the both ends of support pad holder strut (3)
Base panel (4) is connected；Pushing tow position-limiting tube (5) is coupled through support pad holder panel (4) with hydraulic top depressor (6) piston, hydraulic pressure
Top pressing device (6) is changed supporting cylinder (7) by stroke and is coupled with centre-hole jack (11)；Installed in stroke conversion supporting cylinder (7)
Interim anchor clamp I (8), jack (11) are provided with interim anchor clamp II (9) with hydraulic top depressor (6) non-contacting one end；Liquid
Press pump station (12) is connected with jack (11), hydraulic top depressor (6) and computer system (13) respectively；Sensor (2) is with calculating
Machine system (13) connects；Sensor (2) is arranged on the anchor plate I (102) of stretching end anchor clamp (1) and stretching end anchor clamp (1)
Between.The step of being constructed using the device is as follows：Step 1: during presstressed reinforcing steel (14) initial tensioning, installed according to force in control cable
Sensor (2)；Step 2: presstressed reinforcing steel (14) is anchored at stretching end anchor clamp (1) and fixing end anchor clamp by fixture
(15) on, jack (11), stroke conversion support tube (7), hydraulic top depressor (6) and pushing tow position-limiting tube (5) combination are integral, entirely
Portion penetrates presstressed reinforcing steel (14), and wherein pushing tow position-limiting tube (5) reaches work clip sheet front end also cross support pad holder panel (4)；
Step 3: during presstressed reinforcing steel (14) tensioning, presstressed reinforcing steel (14) and intermediate plate are synchronously pulled out, by pushing tow position-limiting tube (5) after extraction
Limitation intermediate plate is in anchor hole, and continuously tensioning is realized by the alternating anchoring of interim anchor clamp I (8), interim anchor clamp II (9),
Work clip sheet is in vacant state during continuously tensioning；Step 4: in stretching process, the cable tensios control rope of other presstressed reinforcing steels
The force in control cable that power is formed by the malformation of the mounted presstressed reinforcing steel of sensor (2) collection, feeds back to computer system
(13), now computer system (13) sends signal control hydraulic power unit (12), and hydraulic power unit (12) passes through force control hydraulic pressure
Top pressing device (6) push pushing tow position-limiting tube (5), intermediate plate is promoted anchor hole, completes single tension and top pressure；Step 5: remove support
Base strut (3), support pad holder panel (4), pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion support cylinder (7), faced
When anchor clamp I (8), interim anchor clamp II (9), jack (11), be displaced to next presstressed reinforcing steel, repeat step two arrives step
Five.
As shown in fig. 7, a kind of constructing device based on group's anchor system single tendon stretch and tune rope, its hydraulic top depressor (6) point
For front pressuring plate (601), top pressing device main body (602), rear fender (603) three parts construction, front pressuring plate (601) is pressed in supporting pad seat surface
On plate (4), rear fender (603) is changed supporting cylinder (7) with stroke and is connected with thread forms, top pressing device main body (602) both ends difference
It is connected with front pressuring plate (601) and rear fender (603), front pressuring plate (601) edge face structure is shaped as quincunx.
Claims (10)
1. a kind of constructing device based on group's anchor system single tendon stretch and tune rope, it is characterised in that including stretching end anchor clamp
(1), support pad holder strut (3), support pad holder panel (4), pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion supporting
Cylinder (7), interim anchor clamp I (8), interim anchor clamp II (9), jack (11), hydraulic power unit (12), computer system (13),
Fixing end anchor clamp (15) and group's anchor body drag-line (16), group's anchor body drag-line (16) connection stretching end anchor clamp (1) and fixing end anchor
Fixture (15)；The both ends of support pad holder strut (3) anchor slab I (101) and support pad holder panel with stretching end anchor clamp (1) respectively
(4) it is connected；Pushing tow position-limiting tube (5) is coupled through support pad holder panel (4) with hydraulic top depressor (6) piston, hydraulic top depressor (6)
Supporting cylinder (7) is changed by stroke with centre-hole jack (11) to be coupled；The interim anchor clamp of installation in stroke conversion supporting cylinder (7)
I (8), jack (11) are provided with interim anchor clamp II (9) with hydraulic top depressor (6) non-contacting one end；Hydraulic power unit (12)
It is connected respectively with jack (11), hydraulic top depressor (6) and computer system (13).
2. the constructing device according to claim 1 based on group's anchor system single tendon stretch and tune rope, it is characterised in that also wrap
Sensor (2) and interim anchor clamp III (10) are included, interim anchor clamp III (10) is pressed on sensor (2), sensor (2) and meter
Calculation machine system (13) connects；Sensor (2) is arranged on first presstressed reinforcing steel (1601) of group's anchor body drag-line (16), sensor
(2) installation site is anchor slab I (101) end face of stretching end anchor clamp (1), anchor slab II (1501) end of fixing end anchor clamp (15)
Any place of group's anchor body drag-line (16) between face, stretching end anchor clamp (1) and fixing end fixture (15).
3. the constructing device according to claim 1 based on group's anchor system single tendon stretch and tune rope, it is characterised in that also wrap
Sensor (2) is included, sensor (2) is connected with computer system (13)；Sensor (2) is installed in fixing end anchor clamp (15) and admittedly
Appointing between the anchor plate II (1502) of fixed end anchor clamp (15) or between stretching end anchor clamp (1) and fixing end anchor clamp (15)
At one.
4. the constructing device based on group's anchor system single tendon stretch and tune rope according to any one of Claims 2 or 3, its feature
It is, support pad holder panel (4) section constructs for multi-hole position, and hole position is identical with anchor clamp (1) hole position arrangement.
5. the constructing device based on group's anchor system single tendon stretch and tune rope according to any one of Claims 2 or 3, its feature
It is, pushing tow position-limiting tube (5) is cylindrical structure, and its external diameter is smaller than the aperture of support pad holder panel (4), pushing tow position-limiting tube (5)
Height is corresponding with the height of support pad holder panel (4).
6. the constructing device based on group's anchor system single tendon stretch and tune rope according to any one of Claims 2 or 3, its feature
It is, stroke changes supporting cylinder (7) as tube-in-tube structure.
7. the constructing device according to claim 2 based on group's anchor system single tendon stretch and tune rope, it is characterised in that hydraulic pressure
Top pressing device (6) is divided into front pressuring plate (601), top pressing device main body (602), rear fender (603) three parts construction, front pressuring plate (601) pressure
On support pad holder panel (4), rear fender (603) is changed supporting cylinder (7) with stroke and is connected with thread forms, hydraulic top depressor master
Body (602) both ends are connected with front pressuring plate (601) and rear fender (603) respectively, and front pressuring plate (601) edge face structure is shaped as plum blossom
Shape.
8. a kind of implementation engineering method based on group's anchor system single tendon stretch and the constructing device for adjusting rope using described in claim 1,
Characterized in that, step is as follows：Step 1: during presstressed reinforcing steel (14) initial tensioning, input group's anchor in computer system (13)
Lower group anchor body drag-line (16) the anchor point relative shift Δ l of the whole beam force in control cable F of body drag-line (16), whole beam force in control cable F effect,
Temperature variation Δ t under operating mode, by computer system (13) export presstressed reinforcing steel (14) first stretching control force F1, second
Stretching control force F2, n-th stretching control force Fn, n represent presstressed reinforcing steel radical；Step 2: presstressed reinforcing steel (14) is logical
Cross fixture to be anchored on stretching end anchor clamp (1) and fixing end anchor clamp (15), jack (11), stroke conversion support tube
(7), hydraulic top depressor (6) and pushing tow position-limiting tube (5) combination are integral, all penetrate presstressed reinforcing steel (14), wherein pushing tow is spacing
(5) are managed also cross support pad holder panel (4), reach work clip sheet front end；Step 3: during presstressed reinforcing steel (14) tensioning, in advance should
Power muscle (14) and intermediate plate are synchronously pulled out, and are in after extraction by pushing tow position-limiting tube (5) limitation intermediate plate in anchor hole, are passed through interim grip
I (8) of tool, the alternating of interim anchor clamp II (9) anchor and realize continuously tensioning, and work clip sheet is in hanging shape during continuously tensioning
State；Step 4: in stretching process, computer system (13) sends signal control liquid according to the stretching control force of presstressed reinforcing steel (14)
Press pump station (12), hydraulic power unit (12) push pushing tow position-limiting tube (5) by force control hydraulic pressure top pressing device (6), intermediate plate are promoted
Anchor hole, complete single tension and top pressure；Step 5: remove support pad holder strut (3), supporting pad seat surface after completing tensioning and top pressure
Plate (4), pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion supporting cylinder (7), interim anchor clamp I (8), interim anchor clamp
II (9), jack (11), are displaced to next presstressed reinforcing steel to be tensioned, and repeat step two arrives step 5.
9. a kind of implementation engineering method based on group's anchor system single tendon stretch and the constructing device for adjusting rope using described in claim 2,
Characterized in that, step is as follows：Step 1: during presstressed reinforcing steel (14) initial tensioning, according to force in control cable install sensor (2)；
Step 2: presstressed reinforcing steel (14) is anchored on stretching end anchor clamp (1) and fixing end anchor clamp (15) by fixture, it is very heavy
It is integral to push up (11), stroke conversion support tube (7), hydraulic top depressor (6) and pushing tow position-limiting tube (5) combination, all penetrates pre- answer
Power muscle (14), wherein pushing tow position-limiting tube (5) reach work clip sheet front end also cross support pad holder panel (4)；It is Step 3: pre-
During stress rib (14) tensioning, presstressed reinforcing steel (14) and intermediate plate are synchronously pulled out, by pushing tow position-limiting tube (5) limitation intermediate plate after extraction
In anchor hole, continuously tensioning, continuously tensioning mistake are realized by the alternating anchoring of interim anchor clamp I (8), interim anchor clamp II (9)
Work clip sheet is in vacant state in journey；Step 4: in stretching process, the cable tensios control Suo Li of other presstressed reinforcing steels is by sensor
(2) force in control cable that the malformation of first presstressed reinforcing steel (1601) is formed is gathered, feeds back to computer system (13), now
Computer system (13) sends signal control hydraulic power unit (12), and hydraulic power unit (12) passes through force control hydraulic pressure top pressing device (6)
Pushing tow position-limiting tube (5) is pushed, intermediate plate is promoted anchor hole, completes single tension and top pressure；Step 5: remove support pad holder strut
(3), support pad holder panel (4), pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion supporting cylinder (7), interim anchor clamp I
(8), interim anchor clamp II (9), jack (11), are displaced to next presstressed reinforcing steel, and repeat step two arrives step 5.
10. a kind of implementation engineering method based on group's anchor system single tendon stretch and the constructing device for adjusting rope using described in claim 3,
Characterized in that, step is as follows：Step 1: during presstressed reinforcing steel (14) initial tensioning, according to force in control cable install sensor (2)；
Step 2: presstressed reinforcing steel (14) is anchored on stretching end anchor clamp (1) and fixing end anchor clamp (15) by fixture, it is very heavy
It is integral to push up (11), stroke conversion support tube (7), hydraulic top depressor (6) and pushing tow position-limiting tube (5) combination, all penetrates pre- answer
Power muscle (14), wherein pushing tow position-limiting tube (5) reach work clip sheet front end also cross support pad holder panel (4)；It is Step 3: pre-
During stress rib (14) tensioning, presstressed reinforcing steel (14) and intermediate plate are synchronously pulled out, by pushing tow position-limiting tube (5) limitation intermediate plate after extraction
In anchor hole, continuously tensioning, continuously tensioning mistake are realized by the alternating anchoring of interim anchor clamp I (8), interim anchor clamp II (9)
Work clip sheet is in vacant state in journey；Step 4: in stretching process, the cable tensios control Suo Li of other presstressed reinforcing steels is by sensor
(2) force in control cable that the malformation of mounted presstressed reinforcing steel is formed is gathered, computer system (13) is fed back to, now calculates
Machine system (13) sends signal control hydraulic power unit (12), and hydraulic power unit (12) is pushed by force control hydraulic pressure top pressing device (6)
Pushing tow position-limiting tube (5), intermediate plate is promoted anchor hole, completes single tension and top pressure；Step 5: remove support pad holder strut (3), branch
Stake pad seat surface plate (4), pushing tow position-limiting tube (5), hydraulic top depressor (6), stroke conversion support cylinder (7), interim anchor clamp I (8), faced
When anchor clamp II (9), jack (11), be displaced to next presstressed reinforcing steel, repeat step two arrives step 5.
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| CN201710731102.4A CN107747279B (en) | 2017-08-23 | 2017-08-23 | Construction device and implementation method based on group anchor system single tensioning and cable adjusting |
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| CN201710731102.4A CN107747279B (en) | 2017-08-23 | 2017-08-23 | Construction device and implementation method based on group anchor system single tensioning and cable adjusting |
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| CN109457614A (en) * | 2018-09-30 | 2019-03-12 | 柳州欧维姆结构检测技术有限公司 | Parallel steel stranded wire stayed Cable Construction Suo Li uniformity monitors system and construction method |
| CN111140019A (en) * | 2020-01-15 | 2020-05-12 | 柳州市桥厦工程有限公司 | Intelligent control's suspension tensioning equipment |
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| CN107747279B (en) | 2023-09-12 |
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