CN105401532A - Device for replacing traction friction type anchoring hanger rod and method for replacing steel tube arch bridge hanger rod by using device - Google Patents
Device for replacing traction friction type anchoring hanger rod and method for replacing steel tube arch bridge hanger rod by using device Download PDFInfo
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- CN105401532A CN105401532A CN201510937492.1A CN201510937492A CN105401532A CN 105401532 A CN105401532 A CN 105401532A CN 201510937492 A CN201510937492 A CN 201510937492A CN 105401532 A CN105401532 A CN 105401532A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 194
- 239000010959 steel Substances 0.000 title claims abstract description 194
- 238000004873 anchoring Methods 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000000725 suspension Substances 0.000 claims description 44
- 238000006243 chemical reaction Methods 0.000 claims description 23
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- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- 238000003466 welding Methods 0.000 description 4
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- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention discloses a device for replacing a traction friction type anchoring hanger rod. The device comprises a fixed end anchoring tool, a stretching end anchoring tool, an upper transfer girder, upper and lower steel strands, a lower supporting beam, and a traction friction anchored type arch top anchoring skid resisting system which is mounted on an arch of an arch bridge, wherein the arch top anchoring skid resisting system comprises a friction anchoring device I consisting of two groups of upper and lower riding type clamping devices I and two pull rods I, and a friction anchoring device II consisting of two upper and lower riding type clamping devices II and two pull rods II; the two ends of a pulling cable are respectively anchored on the upper riding type clamping devices I or the upper riding type clamping devices II; a pulling jack is driven to stretch the pulling cable to realize skid resistance of the traction type arch top friction anchoring skid resisting system; four rotary lifting tools for levelling are respectively positioned at the two ends of the two upper riding type clamping devices I and the two upper riding type clamping devices II and rotate through pin shafts so as to adaptively realize levelling of the lifting tools; according to the device, small influences are caused to stress of an original structure during a cable force transfer process of hanger rod replacing; convenience is provided for standard construction; high work efficiency is realized.
Description
Technical field
The present invention relates to a kind of bridge construction facility, particularly a kind of for the instrument derrick rig of steel pipe truss concrete arch-type bridge suspender replacement and the method for steel pipe arch bridge suspender replacement thereof.
Background technology
At present, most of concrete-filled steel tubes arch bridge suspender replacement rope power conversion device is mainly interim suspension rod or interim pocket device for hoisting, and arch upper part need take welding manner to fix leveling wedge or antiskid block, reaches the object that the upper leveling of arch is convenient to arrange crossbeam or antiskid; When interim suspension rod or interim pocket device for hoisting need be transferred to next suspender replacement place, arch top rail needs large-scale lifting appliance lifting operation, its shortcoming is: engineer operation intensity is large, Site Welding quality difficulty controls, easy injury of primary steel pipe concrete arch rib and application, wedge can not have enough to meet the need use, and it is slow to remove the progress that resumes operation, large-scale lifting appliance machine-team consumption is large, and construction cost is higher.
Application publication number is: CN102926332A, denomination of invention discloses a kind of instrument derrick rig of steel arch bridge suspender replacement for " the instrument derrick rig of steel arch bridge suspender replacement and replacing options thereof ", its weak point remains need often located to change welded limiting device near boom location, Site Welding quality difficulty controls, to raw steel structure arch rib and be coated with damage, stopping means material can not have enough to meet the need use, changes that suspension rod is complete need carry out repair process to the position of steel structure surface local welding; Wire line thimble is many around arch ring number of channels, and working procedure is complicated, and engineer operation intensity is large, and remove the progress that resumes operation slowly, large-scale lifting appliance machine-team consumption is large, and construction cost is higher.
Summary of the invention
The object of this invention is to provide a kind of for the traction friction-type anchoring suspender replacement device of concrete-filled steel tubes arch bridge suspender replacement and the method for steel pipe arch bridge suspender replacement thereof, this traction friction-type anchoring suspender replacement device is in suspender replacement Suo Li transfer process, do not change original structure stress system, less to original structure stressing influence, manual work intensity is little, it is fast that construction peace tears progress open, to former steel tube arch rib and application not damaged, transfer does not need large-scale lifting appliance, be convenient to standardized construction, work efficiency is high, construction cost is less, to solve the problems referred to above that prior art exists.
The technical scheme solved the problem is: a kind of traction friction-type anchoring suspender replacement device, comprise steel strand rope fixed end ground tackle I, II, III, steel strand cable stretching end ground tackle I, II, and upper conversion beam, upper steel strand rope, lower steel strand rope and lower joist, it is characterized in that: this traction friction-type anchoring suspender replacement device also comprises a traction friction anchoring formula vault anchoring antiskid system be arranged on concrete-filled steel tubes arch bridge arch, this traction friction anchoring formula vault anchoring antiskid system is by drag cable, drag cable fixed end ground tackle, drag cable stretching end ground tackle, clamping device I on horseback riding type, horseback riding type lower fixture I, rotary hanging tool, pretension screw-thread steel I, pull bar I, clamping device II on horseback riding type, horseback riding type lower fixture II, pretension screw-thread steel II, pull bar II
,rubber pad I, rubber pad II, pretension screw-thread steel nut and pull-rod nut form two groups of friction anchoring devices,
Be placed in clamping device I on two horseback riding types on steel pipe vault, be placed in two horseback riding type lower fixtures I of tubular arch bottom surface by 4 pretension screw-thread steels I, pretension screw-thread steel nut, 2 pull bars I and pull-rod nut composition friction anchoring device I; Be placed in clamping device II on two horseback riding types on steel pipe vault, be placed in two horseback riding type lower fixtures II of tubular arch bottom surface by 4 pretension screw-thread steels II, pretension screw-thread steel nut, 2 pull bars II and pull-rod nut composition friction anchoring device II; On horseback riding type on clamping device I, horseback riding type between clamping device II and tubular arch end face or at horseback riding type lower fixture I, rubber pad I for increasing friction factor is between the two installed between horseback riding type lower fixture II and tubular arch bottom surface; Play the rubber pad II of position-limiting action and be arranged on pretension screw-thread steel or between pretension screw-thread steel and tubular arch side;
On one end of drag cable is anchored at friction anchoring device I side horseback riding type by drag cable fixed end ground tackle on clamping device I, the other end of drag cable is anchored at friction anchoring device II near on clamping device II on the horseback riding type of friction anchoring device I side by drag cable stretching end ground tackle, drives traction jack tension drag cable to realize the antiskid of towed vault friction anchoring antiskid system;
4 rotary hanging tools playing leveling effect to lay respectively on two horseback riding types clamping device II two ends on clamping device I, two horseback riding types, rotary hanging tool is connected with clamping device on two horseback riding types respectively by columned bearing pin, and rotates by bearing pin the leveling that self adaptation realizes suspender;
Under duty, 4 upper steel strand rope upper ends are each passed through rotary hanging tool, with the anchoring of steel strand rope fixed end ground tackle I, the lower end of 4 upper steel strand ropes is through the anchoring of upper conversion beam steel strand rope fixed end ground tackle II, steel strand cable stretching end ground tackle I, the anchoring of steel strand cable stretching end ground tackle II are used respectively through upper conversion beam, stretch-draw jack successively in lower steel strand rope upper end, and the lower end of lower steel strand rope is through the anchoring of lower joist steel strand rope fixed end ground tackle III; Lower joist catches suspension rod crossbeam soffit.
Another relevant technical scheme is: a kind of method of steel pipe arch bridge suspender replacement, and it adopts the present invention's above-mentioned traction friction-type anchoring suspender replacement device for the method for steel pipe arch bridge suspender replacement, and it comprises the steps:
A, installation traction friction-type anchoring suspender replacement device:
A1, be longitudinally symmetrical in former suspension rod at tubular arch and install on tubular arch and draw friction anchoring formula vault anchoring antiskid system:
This traction friction anchoring formula vault anchoring antiskid system is by clamping device II, horseback riding type lower fixture II, pretension screw-thread steel II, pull bar II on clamping device I, horseback riding type lower fixture I, rotary hanging tool, pretension screw-thread steel I, pull bar I, horseback riding type on drag cable, drag cable fixed end ground tackle, drag cable stretching end ground tackle, horseback riding type
,the assembling of rubber pad I, rubber pad II, pretension screw-thread steel nut and pull-rod nut is formed;
Clamping device I on two horseback riding types is placed on steel pipe vault, two horseback riding type lower fixtures I are placed in tubular arch bottom surface, by 4 pretension screw-thread steels I, pretension screw-thread steel nut, 2 pull bars I and pull-rod nut composition friction anchoring device I; Clamping device II on two horseback riding types is placed on steel pipe vault, two horseback riding type lower fixtures II are placed in tubular arch bottom surface, by 4 pretension screw-thread steels II, pretension screw-thread steel nut, 2 pull bars II and pull-rod nut composition friction anchoring device II; On horseback riding type on clamping device I, horseback riding type between clamping device II and tubular arch end face or at horseback riding type lower fixture I, rubber pad I for increasing friction factor is between the two installed between horseback riding type lower fixture II and tubular arch bottom surface; Play the rubber pad II of position-limiting action and be arranged on pretension screw-thread steel or between pretension screw-thread steel and tubular arch side;
On one end of drag cable is anchored at friction anchoring device I side horseback riding type by drag cable fixed end ground tackle on clamping device I, the other end of drag cable is anchored at friction anchoring device II near on clamping device II on the horseback riding type of friction anchoring device I side by drag cable stretching end ground tackle, drives traction jack tension drag cable to realize the antiskid of towed vault friction anchoring antiskid system;
A2, device for installing and leveling:
4 rotary hanging tools playing leveling effect to be arranged on respectively on two horseback riding types clamping device II two ends on clamping device I, two horseback riding types, by columned bearing pin, rotary hanging tool is connected with clamping device on horseback riding type respectively, and rotates by bearing pin the leveling that self adaptation realizes suspender;
Bar lazy halyard is changed in A3, installation---upper steel strand rope and lower steel strand rope:
By upper steel strand rope upper end through rotary hanging tool, with the anchoring of steel strand rope fixed end ground tackle I, the lower end of upper steel strand rope is through the anchoring of upper conversion beam steel strand rope fixed end ground tackle II, lower steel strand rope upper end penetrates hole through bridge floor successively, upper conversion beam, stretch-draw jack use steel strand cable stretching end ground tackle I, the anchoring of steel strand cable stretching end ground tackle II respectively, and the lower end of lower steel strand rope is through the anchoring of lower joist steel strand rope fixed end ground tackle III; Lower joist catches suspension rod crossbeam soffit;
A4, check traction friction-type anchoring suspender replacement device each assembly connection safety and stablely hold lotus ability:
Slowly carry out examination stretch-draw step by step by steel strand under driving stretch-draw jack stretch-draw, check the connection safety of each assembly of traction friction-type anchor device and stablize and hold lotus ability;
B, remove old suspension rod, complete the conversion of Suo Li system to traction friction-type anchoring suspender replacement device:
Cut off old suspension rod steel wire step by step, synchronously steel strand under stretch-draw step by step, realize former suspender force being converted to traction friction-type anchoring suspender replacement device, complete Suo Li system transform; The change of Suo Li transfer process floor elevation controls within ± 5mm step by step, and after old suspension rod cuts off, steel strand under anchoring, remove former suspension rod afterwards;
C, new suspension rod be installed, complete the conversion of Suo Li system to new suspension rod:
New hanger erection is complete, the new suspension rod of stretch-draw step by step, synchronously put a lower steel strand step by step, traction friction-type anchor device Suo Li is realized to be converted to new suspension rod, complete Suo Li system transform, the change of Suo Li transfer process floor elevation controls within ± 5mm, after new suspender tension puts in place, by the new suspension rod of anchor head nut anchoring step by step;
D, dismounting traction friction-type anchoring suspender replacement device, be transferred to the old suspension rod place of next root;
E, every root suspender replacement repeat steps A ~ step D, complete other suspender replacements.
Owing to adopting technique scheme, the traction friction-type anchoring suspender replacement device of the present invention and there is following beneficial effect for the method for steel pipe arch bridge suspender replacement:
One, this device is in suspender replacement Suo Li transfer process, does not change original structure stress system, less to original structure stressing influence:
Traction friction-type anchoring suspender replacement device due to the present invention also comprises a traction friction anchoring formula vault anchoring antiskid system be arranged on concrete-filled steel tubes arch bridge arch,
This traction friction anchoring formula vault anchoring antiskid system is by clamping device II 10, horseback riding type lower fixture II 11, pretension screw-thread steel II 12, pull bar II 13 on clamping device I 1, horseback riding type lower fixture I 2, rotary hanging tool 4, pretension screw-thread steel I 3, pull bar I 8, horseback riding type on drag cable 9, drag cable fixed end ground tackle 27, drag cable stretching end ground tackle 28, horseback riding type
,formation two groups of friction anchoring devices (see Fig. 3,4) assembled by rubber pad I 6, rubber pad II 7, pretension screw-thread steel nut 25 and pull-rod nut 26;
Clamping device I 1 on two horseback riding types is placed in tubular arch 14 pushes up, two horseback riding type lower fixtures I 2 are placed in tubular arch 14 bottom surface, forms friction anchoring device I by 4 pretension screw-thread steels I 3, pretension screw-thread steel nut 25,2 pull bars I 8 and pull-rod nut 26; Clamping device II 10 on two horseback riding types is placed in tubular arch 14 pushes up, two horseback riding type lower fixtures II 11 are placed in tubular arch 14 bottom surface, forms friction anchoring device II by 4 pretension screw-thread steels II 12, pretension screw-thread steel nut 25,2 pull bars II 13 and pull-rod nut 26; On horseback riding type on clamping device I, horseback riding type between clamping device II and tubular arch end face or at horseback riding type lower fixture I, rubber pad I 6 for increasing friction factor is between the two installed between horseback riding type lower fixture II and tubular arch bottom surface; Play the rubber pad II 7 of position-limiting action and be arranged on pretension screw-thread steel or between pretension screw-thread steel and tubular arch side;
On one end of drag cable 9 is anchored at friction anchoring device I side horseback riding type by drag cable fixed end ground tackle 27 on clamping device I 1, the other end of drag cable is anchored at friction anchoring device II near on clamping device II 10 on the horseback riding type of friction anchoring device I side by drag cable stretching end ground tackle 28, drives traction jack 30 stretch-draw drag cable 9 to realize the antiskid of towed vault friction anchoring antiskid system;
Therefore, apparatus of the present invention, in suspender replacement Suo Li transfer process, do not change original structure stress system, less to original structure stressing influence; Transfer does not need large-scale lifting appliance, and move by traction jack traction steel strand, manual work intensity is little, and work efficiency is high, and it is fast that construction peace tears progress open, and construction cost is less.
Two, be convenient to standardized construction, work efficiency is high, and construction cost is low:
The traction friction-type anchoring suspender replacement device of the present invention has 4 rotary hanging tools 4 playing leveling effect, described rotary hanging tool 4 is positioned at clamping device 1 two ends on horseback riding type, by columned bearing pin, the two is connected, rotate by columned bearing pin the leveling that self adaptation realizes suspender; Therefore, apparatus of the present invention are moving to replacing boom location place at every turn, do not need the device taking to weld leveling different angles to be connected with vault, rotate self adaptation leveling by columned bearing pin; To former steel tube arch rib and application not damaged, work efficiency is high, and construction cost is low.
Below, in conjunction with the accompanying drawings and embodiments to the traction friction-type anchoring suspender replacement device of the present invention and be further described for the technical characteristic of the method for steel pipe arch bridge suspender replacement.
Accompanying drawing explanation
Fig. 1: the overall structure schematic diagram of the traction friction-type anchoring suspender replacement device of the present invention;
The lateral view of Fig. 2: Fig. 1;
Fig. 3: traction friction-type anchoring suspender replacement device assembles schematic diagram (stereogram);
Fig. 4: the transverse views (the QY direction view of Fig. 3) of traction friction-type anchoring suspender replacement device;
Fig. 5: one of arch upper part partial enlarged drawing of traction friction-type anchoring suspender replacement device (the A portion partial enlarged drawing of Fig. 3);
Fig. 6: the arch upper part partial enlarged drawing two (the B portion partial enlarged drawing of Fig. 3) of traction friction-type anchoring suspender replacement device.
Fig. 7: rotary hanging tool structural representation.
In figure:
Clamping device I on 1-horseback riding type, 2-horseback riding type lower fixture I, 3-pretension screw-thread steel I, 4-rotary hanging tool, the upper steel strand rope of 5-, 6-rubber pad I, 7-rubber pad II, 8-pull bar I, 9-drag cable, clamping device II on 10-horseback riding type, 11-horseback riding type lower fixture II, 12-pretension screw-thread steel II, 13-pull bar II, 14-tubular arch, 15-stretch-draw jack, the upper conversion beam of 16-, steel strand rope under 17-, joist under 18-, 19-suspension rod crossbeam, 20-steel strand rope fixed end ground tackle I, 21-steel strand rope fixed end ground tackle II, 22-steel strand rope fixed end ground tackle III, 23-steel strand cable stretching end ground tackle I, 24-steel strand cable stretching end ground tackle II, 25-pretension screw-thread steel nut, 26-pull-rod nut, 27-drag cable fixed end ground tackle, 28-drag cable stretching end ground tackle, the former suspension rod of 29-, 30-draws jack.
Arrow QY-draws the lead of friction anchoring formula vault anchoring antiskid system.
Detailed description of the invention
Embodiment one:
A kind of traction friction-type anchoring suspender replacement device, as shown in Figure 1, 2, this traction friction-type anchoring suspender replacement device is except comprising steel strand rope fixed end ground tackle I, II, III, steel strand cable stretching end ground tackle I, II, outside upper conversion beam 16, upper steel strand rope 5, lower steel strand rope 17 and lower joist 18, also comprise a traction friction anchoring formula vault anchoring antiskid system be arranged on concrete-filled steel tubes arch bridge arch;
As shown in Figure 3, Figure 4, this traction friction anchoring formula vault anchoring antiskid system is by clamping device II 10, horseback riding type lower fixture II 11, pretension screw-thread steel II 12, pull bar II 13 on clamping device I 1, horseback riding type lower fixture I 2, rotary hanging tool 4, pretension screw-thread steel I 3, pull bar I 8, horseback riding type on drag cable 9, drag cable fixed end ground tackle 27, drag cable stretching end ground tackle 28, horseback riding type
,rubber pad I 6, rubber pad II 7, pretension screw-thread steel nut 25 and pull-rod nut 26 form two groups of friction anchoring devices;
Be placed in clamping device I 1 on two horseback riding types that tubular arch 14 pushes up, two horseback riding type lower fixtures I 2 being placed in tubular arch 14 bottom surface form friction anchoring device I by 4 pretension screw-thread steels I 3, pretension screw-thread steel nut 25,2 pull bars I 8 and pull-rod nut 26; Be placed in clamping device II 10 on two horseback riding types that tubular arch 14 pushes up, two horseback riding type lower fixtures II 11 being placed in tubular arch 14 bottom surface form friction anchoring device II by 4 pretension screw-thread steels II 12, pretension screw-thread steel nut 25,2 pull bars II 13 and pull-rod nut 26; On horseback riding type on clamping device I, horseback riding type between clamping device II and tubular arch end face or at horseback riding type lower fixture I, rubber pad I 6 for increasing friction factor is between the two installed between horseback riding type lower fixture II and tubular arch bottom surface; Play the rubber pad II 7 of position-limiting action and be arranged on pretension screw-thread steel or between pretension screw-thread steel and tubular arch side;
On one end of drag cable 9 is anchored at friction anchoring device I side horseback riding type by drag cable fixed end ground tackle 27 on clamping device I 1, the other end of drag cable is anchored at friction anchoring device II near on clamping device II 10 on the horseback riding type of friction anchoring device I side by drag cable stretching end ground tackle 28, drives traction jack 30 stretch-draw drag cable 9 to realize the antiskid of towed vault friction anchoring antiskid system;
4 rotary hanging tools 4 playing leveling effect lay respectively at clamping device I 1 on two horseback riding types, clamping device II 10 two ends on two horseback riding types, described rotary hanging tool 4 is the global facility be processed into by existing known Machining Technology, be divided into three parts, centre is the suspender body 41 of cuboid, have in the middle of suspender body 41 for the circular hole 42 through upper steel strand rope, upper steel strand rope 5 upper end is through circular hole 42, and be anchored on rotary hanging tool 4 suspender body 41 by fixed end ground tackle I 20, respectively there is a columned bearing pin 43 rotary hanging tool 4 suspender body 41 both sides, rotary hanging tool 4 is connected with clamping device on horseback riding type by this columned bearing pin, and rotate by bearing pin the leveling (see Fig. 7) that self adaptation realizes rotary hanging tool, rotary hanging tool is connected with clamping device on two horseback riding types respectively by columned bearing pin, and rotates by bearing pin the leveling that self adaptation realizes suspender,
Under duty, 4 upper steel strand rope 5 upper ends are each passed through rotary hanging tool, with the anchoring of steel strand rope fixed end ground tackle I 20, the lower end of 4 upper steel strand ropes 5 is through steel strand rope fixed end ground tackle II 21 anchoring of upper conversion beam 16, steel strand cable stretching end ground tackle I 23, the anchoring of steel strand cable stretching end ground tackle II 24 are used respectively through upper conversion beam 16, stretch-draw jack 15 successively in lower steel strand rope 17 upper end, and the lower end of lower steel strand rope 17 is through steel strand rope fixed end ground tackle III 22 anchoring of lower joist 18; Lower joist 18 catches suspension rod crossbeam 19 soffit (see Fig. 1 ~ Fig. 6).
Embodiment two:
A method for steel pipe arch bridge suspender replacement, it adopts described in embodiment one to draw the method for friction-type anchoring suspender replacement device for steel pipe arch bridge suspender replacement, and it comprises the steps:
A, installation traction friction-type anchoring suspender replacement device: (see Fig. 1-Fig. 6)
A1, be longitudinally symmetrical in former suspension rod 29 at tubular arch 14 and install on tubular arch 14 and draw friction anchoring formula vault anchoring antiskid system:
This traction friction anchoring formula vault anchoring antiskid system is by clamping device II 10, horseback riding type lower fixture II 11, pretension screw-thread steel II 12, pull bar II 13 on clamping device I 1, horseback riding type lower fixture I 2, rotary hanging tool 4, pretension screw-thread steel I 3, pull bar I 8, horseback riding type on drag cable 9, drag cable fixed end ground tackle 27, drag cable stretching end ground tackle 28, horseback riding type
,the assembling of rubber pad I 6, rubber pad II 7, pretension screw-thread steel nut 25 and pull-rod nut 26 is formed; (see Fig. 3,4)
Clamping device I 1 on two horseback riding types is placed in tubular arch 14 pushes up, two horseback riding type lower fixtures I 2 are placed in tubular arch 14 bottom surface, forms friction anchoring device I by 4 pretension screw-thread steels I 3, pretension screw-thread steel nut 25,2 pull bars I 8 and pull-rod nut 26; Clamping device II 10 on two horseback riding types is placed in tubular arch 14 pushes up, two horseback riding type lower fixtures II 11 are placed in tubular arch 14 bottom surface, forms friction anchoring device II by 4 pretension screw-thread steels II 12, pretension screw-thread steel nut 25,2 pull bars II 13 and pull-rod nut 26; On horseback riding type on clamping device I, horseback riding type between clamping device II and tubular arch end face or at horseback riding type lower fixture I, rubber pad I 6 for increasing friction factor is between the two installed between horseback riding type lower fixture II and tubular arch bottom surface; Play the rubber pad II 7 of position-limiting action and be arranged on pretension screw-thread steel or between pretension screw-thread steel and tubular arch side;
On one end of drag cable 9 is anchored at friction anchoring device I side horseback riding type by drag cable fixed end ground tackle 27 on clamping device I 1, the other end of drag cable is anchored at friction anchoring device II near on clamping device II 10 on the horseback riding type of friction anchoring device I side by drag cable stretching end ground tackle 28, drives traction jack 30 stretch-draw drag cable 9 to realize the antiskid of towed vault friction anchoring antiskid system;
A2, device for installing and leveling:
4 rotary hanging tools 4 playing leveling effect to be arranged on respectively on two horseback riding types clamping device II 10 two ends on clamping device I 1, two horseback riding types, by columned bearing pin, rotary hanging tool 4 is connected with clamping device on horseback riding type respectively, and rotates by bearing pin the leveling that self adaptation realizes suspender;
Bar lazy halyard is changed in A3, installation---upper steel strand rope 5 and lower steel strand rope 17:
By upper steel strand rope 5 upper end through rotary hanging tool 4, with the anchoring of steel strand rope fixed end ground tackle I 20, the lower end of upper steel strand rope 5 is through the anchoring of upper conversion beam steel strand rope fixed end ground tackle II 21, lower steel strand rope 17 upper end penetrates hole through bridge floor successively, upper conversion beam 16, stretch-draw jack 15 use steel strand cable stretching end ground tackle I 23, the anchoring of steel strand cable stretching end ground tackle II 24 respectively, and the lower end of lower steel strand rope 17 is through steel strand rope fixed end ground tackle III 22 anchoring of lower joist 18; Lower joist 18 catches suspension rod crossbeam 19 soffit; (see Fig. 1 ~ Fig. 6);
A4, check traction friction-type anchoring suspender replacement device each assembly connection safety and stablely hold lotus ability:
Slowly carry out examination stretch-draw step by step by steel strand 17 under driving stretch-draw jack 15 stretch-draw, check the connection safety of each assembly of traction friction-type anchor device and stablize and hold lotus ability;
B, remove old suspension rod, complete the conversion of Suo Li system to traction friction-type anchoring suspender replacement device:
Cut off old suspension rod 14 steel wire step by step, synchronously steel strand 17 under stretch-draw step by step, realize former suspender force being converted to traction friction-type anchoring suspender replacement device, complete Suo Li system transform; The change of Suo Li transfer process floor elevation controls within ± 5mm step by step, and after old suspension rod 14 cuts off, steel strand 17 under anchoring, remove former suspension rod 14 afterwards;
C, new suspension rod be installed, complete the conversion of Suo Li system to new suspension rod:
New hanger erection is complete, the new suspension rod of stretch-draw step by step, synchronously put a lower steel strand 17 step by step, traction friction-type anchor device Suo Li is realized to be converted to new suspension rod, complete Suo Li system transform, the change of Suo Li transfer process floor elevation controls within ± 5mm, after new suspender tension puts in place, by the new suspension rod of anchor head nut anchoring step by step;
D, dismounting traction friction-type anchoring suspender replacement device, be transferred to the old suspension rod place of next root;
E, every root suspender replacement repeat steps A ~ step D, complete other suspender replacements.
Claims (2)
1. a traction friction-type anchoring suspender replacement device, comprise steel strand rope fixed end ground tackle I, II, III (20, 21, 22), steel strand cable stretching end ground tackle I, II (23, 24), and upper conversion beam (16), upper steel strand rope (5), lower steel strand rope (17) and lower joist (18), it is characterized in that: this traction friction-type anchoring suspender replacement device also comprises a traction friction anchoring formula vault anchoring antiskid system be arranged on concrete-filled steel tubes arch bridge arch, this traction friction anchoring formula vault anchoring antiskid system is by drag cable (9), drag cable fixed end ground tackle (27), drag cable stretching end ground tackle (28), clamping device I (1) on horseback riding type, horseback riding type lower fixture I (2), rotary hanging tool (4), pretension screw-thread steel I (3), pull bar I (8), clamping device II (10) on horseback riding type, horseback riding type lower fixture II (11), pretension screw-thread steel II (12), pull bar II (13)
,rubber pad I (6), rubber pad II (7), pretension screw-thread steel nut (25) and pull-rod nut (26) form two groups of friction anchoring devices,
Be placed in clamping device I (1) on two horseback riding types on tubular arch (14) top, be placed in two horseback riding type lower fixtures I (2) of tubular arch (14) bottom surface by 4 pretension screw-thread steels I (3), pretension screw-thread steel nut (25), 2 pull bars I (8) and pull-rod nut (26) composition friction anchoring device I; Be placed in clamping device II (10) on two horseback riding types on tubular arch (14) top, be placed in two horseback riding type lower fixtures II (11) of tubular arch (14) bottom surface by 4 pretension screw-thread steels II (12), pretension screw-thread steel nut (25), 2 pull bars II (13) and pull-rod nut (26) composition friction anchoring device II; On horseback riding type on clamping device I, horseback riding type between clamping device II and tubular arch end face or at horseback riding type lower fixture I, rubber pad I (6) for increasing friction factor is between the two installed between horseback riding type lower fixture II and tubular arch bottom surface; Play the rubber pad II (7) of position-limiting action and be arranged on pretension screw-thread steel or between pretension screw-thread steel and tubular arch side;
One end of drag cable (9) to be anchored on the horseback riding type of friction anchoring device I side on clamping device I (1) by drag cable fixed end ground tackle (27), the other end of drag cable is anchored at friction anchoring device II near on clamping device II (10) on the horseback riding type of friction anchoring device I side by drag cable stretching end ground tackle (28), drives traction jack (30) stretch-draw drag cable (9) to realize the antiskid of towed vault friction anchoring antiskid system;
4 rotary hanging tools (4) of playing leveling effect to lay respectively on two horseback riding types clamping device II (10) two ends on clamping device I (1), two horseback riding types, be connected with clamping device on two horseback riding types respectively by columned bearing pin, and rotate by bearing pin the leveling that self adaptation realizes suspender;
Under duty, 4 upper steel strand rope (5) upper ends are each passed through rotary hanging tool, with the anchoring of steel strand rope fixed end ground tackle I (20), the lower end of 4 upper steel strand ropes (5) is through upper conversion beam (16) steel strand rope fixed end ground tackle II (21) anchoring, lower steel strand rope (17) upper end is successively through upper conversion beam (16), stretch-draw jack (15) uses steel strand cable stretching end ground tackle I (23) respectively, the anchoring of steel strand cable stretching end ground tackle II (24), the lower end of lower steel strand rope (17) is through lower joist (18) steel strand rope fixed end ground tackle III (22) anchoring, lower joist (18) catches suspension rod crossbeam (19) soffit.
2. a method for steel pipe arch bridge suspender replacement, it adopts described in claim 1 to draw friction-type anchoring suspender replacement device for the method for steel pipe arch bridge suspender replacement, it is characterized in that: it comprises the steps:
A, installation traction friction-type anchoring suspender replacement device:
A1, be longitudinally symmetrical in former suspension rod (29) tubular arch (14) is upper at tubular arch (14) traction friction anchoring formula vault anchoring antiskid system be installed:
This traction friction anchoring formula vault anchoring antiskid system is by clamping device II (10), horseback riding type lower fixture II (11), pretension screw-thread steel II (12), pull bar II (13) on clamping device I (1), horseback riding type lower fixture I (2), rotary hanging tool (4), pretension screw-thread steel I (3), pull bar I (8), horseback riding type on drag cable (9), drag cable fixed end ground tackle (27), drag cable stretching end ground tackle (28), horseback riding type
,the assembling of rubber pad I (6), rubber pad II (7), pretension screw-thread steel nut (25) and pull-rod nut (26) is formed;
Clamping device I (1) on two horseback riding types is placed on tubular arch (14) top, two horseback riding type lower fixtures I (2) are placed in tubular arch (14) bottom surface, by 4 pretension screw-thread steels I (3), pretension screw-thread steel nut (25), 2 pull bars I (8) and pull-rod nut (26) composition friction anchoring device I; Clamping device II (10) on two horseback riding types is placed on tubular arch (14) top, two horseback riding type lower fixtures II (11) are placed in tubular arch (14) bottom surface, by 4 pretension screw-thread steels II (12), pretension screw-thread steel nut (25), 2 pull bars II (13) and pull-rod nut (26) composition friction anchoring device II; On horseback riding type on clamping device I, horseback riding type between clamping device II and tubular arch end face or at horseback riding type lower fixture I, rubber pad I (6) for increasing friction factor is between the two installed between horseback riding type lower fixture II and tubular arch bottom surface; Play the rubber pad II (7) of position-limiting action and be arranged on pretension screw-thread steel or between pretension screw-thread steel and tubular arch side;
One end of drag cable (9) to be anchored on the horseback riding type of friction anchoring device I side on clamping device I (1) by drag cable fixed end ground tackle (27), the other end of drag cable is anchored at friction anchoring device II near on clamping device II (10) on the horseback riding type of friction anchoring device I side by drag cable stretching end ground tackle (28), drives traction jack (30) stretch-draw drag cable (9) to realize the antiskid of towed vault friction anchoring antiskid system;
A2, device for installing and leveling:
4 rotary hanging tools (4) of playing leveling effect to be arranged on respectively on two horseback riding types clamping device II (10) two ends on clamping device I (1), two horseback riding types, by columned bearing pin, rotary hanging tool (4) is connected with clamping device on horseback riding type respectively, and rotates by bearing pin the leveling that self adaptation realizes suspender;
Bar lazy halyard is changed in A3, installation---upper steel strand rope (5) and lower steel strand rope (17):
By upper steel strand rope (5) upper end through rotary hanging tool (4), with the anchoring of steel strand rope fixed end ground tackle I (20), the lower end of upper steel strand rope (5) is through the anchoring of upper conversion beam steel strand rope fixed end ground tackle II (21), lower steel strand rope (17) upper end penetrates hole through bridge floor successively, upper conversion beam (16), stretch-draw jack (15) uses steel strand cable stretching end ground tackle I (23) respectively, the anchoring of steel strand cable stretching end ground tackle II (24), the lower end of lower steel strand rope (17) is through lower joist (18) steel strand rope fixed end ground tackle III (22) anchoring, lower joist (18) catches suspension rod crossbeam (19) soffit,
A4, check traction friction-type anchoring suspender replacement device each assembly connection safety and stablely hold lotus ability:
By driving steel strand (17) under stretch-draw jack (15) stretch-draw slowly to carry out examination stretch-draw step by step, checking the connection safety of each assembly of traction friction-type anchor device and stablizing and hold lotus ability;
B, remove old suspension rod, complete the conversion of Suo Li system to traction friction-type anchoring suspender replacement device:
Cut off old suspension rod (14) steel wire step by step, synchronously steel strand (17) under stretch-draw step by step, realize former suspender force being converted to traction friction-type anchoring suspender replacement device, complete Suo Li system transform; The change of Suo Li transfer process floor elevation controls within ± 5mm step by step, and after old suspension rod (14) cuts off, steel strand (17) under anchoring, remove former suspension rod (14) afterwards;
C, new suspension rod be installed, complete the conversion of Suo Li system to new suspension rod:
New hanger erection is complete, the new suspension rod of stretch-draw step by step, synchronously put a lower steel strand (17) step by step, traction friction-type anchor device Suo Li is realized to be converted to new suspension rod, complete Suo Li system transform, the change of Suo Li transfer process floor elevation controls within ± 5mm, after new suspender tension puts in place, by the new suspension rod of anchor head nut anchoring step by step;
D, dismounting traction friction-type anchoring suspender replacement device, be transferred to the old suspension rod place of next root;
E, every root suspender replacement repeat steps A ~ step D, complete other suspender replacements.
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|---|---|---|---|
| CN201510937492.1A CN105401532B (en) | 2015-12-16 | 2015-12-16 | Device for replacing traction friction type anchoring hanger rod and method for replacing steel tube arch bridge hanger rod by using device |
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| CN201510937492.1A CN105401532B (en) | 2015-12-16 | 2015-12-16 | Device for replacing traction friction type anchoring hanger rod and method for replacing steel tube arch bridge hanger rod by using device |
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| CN105401532B CN105401532B (en) | 2017-05-03 |
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| CN106087770A (en) * | 2016-08-12 | 2016-11-09 | 柳州欧维姆工程有限公司 | Hood type instrument derrick rig for steel pipe truss concrete arch-type bridge suspender replacement |
| CN106758882A (en) * | 2017-02-16 | 2017-05-31 | 柳州欧维姆工程有限公司 | For the hood type automatic leveling anchor and its method for suspender replacement of CFST Arch Bridge suspender replacement |
| CN106758883A (en) * | 2017-03-02 | 2017-05-31 | 柳州欧维姆工程有限公司 | For the interim pocket device for hoisting of steel wire rope of steel pipe truss concrete arch-type bridge suspender replacement and its method for suspender replacement |
| CN111576256A (en) * | 2020-06-12 | 2020-08-25 | 兰州交通大学 | A cable replacement device for a concrete-filled steel tube arch bridge |
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| CN106758883A (en) * | 2017-03-02 | 2017-05-31 | 柳州欧维姆工程有限公司 | For the interim pocket device for hoisting of steel wire rope of steel pipe truss concrete arch-type bridge suspender replacement and its method for suspender replacement |
| CN111576256A (en) * | 2020-06-12 | 2020-08-25 | 兰州交通大学 | A cable replacement device for a concrete-filled steel tube arch bridge |
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|---|---|
| CN105401532B (en) | 2017-05-03 |
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