CN104594696B - Double embrace bar group is utilized to found 1000kV tangent suspension tower construction method - Google Patents
Double embrace bar group is utilized to found 1000kV tangent suspension tower construction method Download PDFInfo
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 239000000725 suspension Substances 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims description 51
- 230000008569 process Effects 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 6
- 230000004224 protection Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 14
- 239000004677 Nylon Substances 0.000 description 10
- 229920001778 nylon Polymers 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 210000003141 lower extremity Anatomy 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 241001584775 Tunga penetrans Species 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
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Abstract
The present invention relates to one utilizes double embrace bar group to found 1000kV tangent suspension tower construction method, it is longer that the method utilizes double embrace bar group to found cross-arm in 1000kV UHV transmission line, crank arm higher, the steel tower construction method that weight is bigger, during with lifting straight line wine glass-shaped tower in the past, conventional is the construction method of interior outstanding external cable list pole, but in the case of construction landform is limited, owing to weight is bigger, crank arm higher, cross-arm is bigger, interior outstanding external cable list pole is used to be assembled with pole inclination angle big, external cable angle over the ground is big, the unsafe factors such as difficulty in place, cannot produce for construction safety and provide safeguard.This engineering uses double embrace bar lifting straight line wine glass-shaped tower to greatly reduce construction safety risk, be easy to the instrument transport of alpine terrain, provides safety assurance for tower erection, improves efficiency of construction and the economic effect of tower erection.
Description
Technical field
The present invention relates to one utilizes double embrace bar group to found 1000kV tangent suspension tower construction method.
Background technology
In the past during lifting straight line wine glass-shaped tower, conventional is the construction method of interior outstanding external cable list pole, but in construction
In the case of landform is limited, owing to weight is relatively big, it is higher to crank arm, cross-arm is relatively big, in using, outstanding external cable list pole is assembled with
The unsafe factors such as pole inclination angle is big, big, the difficulty in place of external cable angle over the ground, it is impossible to construction safety produces and provides safeguard.
Summary of the invention
It is an object of the invention to provide one utilizes double embrace bar group to found 1000kV tangent suspension tower construction method, can be substantially reduced
1000kV tangent suspension tower construction safety risk, it is simple to the instrument transport of alpine terrain.
The present invention uses below scheme to realize: one utilizes double embrace bar group to found 1000kV tangent suspension tower construction method, and it is special
Levy and be to comprise the following steps:
S01: open according to tower leg weight, root, main material length, site condition, uses bulk-breaking construction from part to complete tower leg group and stands；
S02: pole group is vertical to be comprised the following steps:
S021: the tower leg main material top-hung coaster stood in group, utilizes hoisting wirerope to lift by crane pole inside main material；?
Tower leg section top and do 2 roads with steel wire loop at its 4m and promote waist hoop temporarily, waist hoop must not be wound around less than 3 roads；Pole is carried
Rise desired location；
S022: utilize pole root waist hoop to be fixed on main material by pole, and or respectively lift at distance pole root 4m
Under state, pole girdle ring installation site installs second waist hoop, then removes pole interim waist hoop；
S03: tower body lifts, tower body take root hang+sheet two kinds of lifting modes such as hangs.When hanging sheet weight less than 3.0t, take
Burst lifting before and after double embrace bar；When hanging sheet weight more than 3.0t, the mode taking single pole root to hang rear front cover lifts.
S04: pole promotes and comprises the following steps with adjustment:
S041: pole should be arranged on inside main material and promote, upper and lower twice waist hoop be controlled.At lifting pole
Time, it is controlled as two pipe protections except being also applied to while need to arranging upper and lower waist hoop to arrange interim waist hoop at distance waist hoop 4m
Pole, prevents pole from toppling at lifting process；
S042: other Third Mate's poles promote also according to this method and adjust；
S043: every pole should accomplish fluently temporary guy on three road towers (respectively to the main material direction of other three lower limbs), with flat
Weighing apparatus pole bears the power of different directions during lifting；
S05: lower bent lever hypomere lifts, and lower bent lever hypomere takes double embrace bar to lift, and is divided into that front-back is whole hangs that (left and right sides assembles
Integral), top and bottom envelope material mode lift；
S06: lower bent lever epimere lifts, during lifting lower bent lever epimere, pole should take first to pitch ground, after the method that promotes again
In place, pole stretches root in lower bent lever hypomere tower body, and root should be positioned at tower body flat mouth node, and root and waist are respectively arranged together
Waist hoop；Lower bent lever epimere divides that the left and right sides, every side divide front-back whole to hang, the mode of top and bottom front cover is lifted by crane, and front-back uses single
Pole lifts by crane respectively, should strictly control hanging piece weight, must not attach the envelope material of top and bottom during assembling, and single pole lifting must not exceed
1.5t, double embrace bar lifting weight no more than 3t are controlled；
S07: hypomere of above cranking arm lifts, and rises and hangs on when cranking arm hypomere, pole should take first to pitch ground, after the side that promotes again
Method is in place, pole stretches root in lower bent lever section epimere tower body, and pole root is seated the node of lower bent lever upper-lower section waypoint
Place；Waist hoop together with respectively arranging with at the main material of lower bent lever upper cover away from its root L/4 (L: pole length) place at the root of pole；On
Crank arm the hypomere point left and right sides, every side divide interior outside to use double embrace bar lifts lifting, the mode of front-back front cover lifts, front
On envelope material below can attach, should strictly control hanging piece weight, double embrace bar lifts weight and must not exceed 3.0t simultaneously；
The lifting of S08: middle cross-arm truss section comprises the following steps:
S081: middle cross-arm truss section lift before, lifting pole, pole lifting process all the time inside upper tower body of cranking arm,
Pole is stretched root and is cranked arm in epimere tower body in upper, and pole root is positioned at the node inside horizontal material of cranking arm.
S082: in every side, cross-arm truss section is first with the lower cover of single pole truss hoisting, the single pole of recycling divides front-back
Sheet hangs, and the mode finally carrying out recycling single pole end face front cover lifts；Each hanging piece weight, single pole should be strictly controlled during lifting
Hoisting weight must not exceed 1.5t；
The lifting of S09: middle cross-arm beam segments comprises the following steps:
S091: in lifting during cross-arm beam segments, it is in place that pole takes first to drop the method promoted afterwards, and operating process is all at upper song
Carrying out inside arm and middle cross-arm truss, pole stretches root in the upper section of cranking arm epimere tower body, stretches root length degree and should be greater than pole length 1/
4, pole root is seated at horizontal material lateral surface node of cranking arm；
S092: middle cross-arm beam segments, takes front-back double embrace bar to lift, top and bottom front cover mode lifts.Front-back uses
Pack double embrace bar lifts method, and top and bottom envelope material must not bring, and strict its lifting weight that controls must not exceed 4.0t；
S010: cross-arm linkage section lifts, and cross-arm linkage section takes unilateral whole section of lifting, uses 300 × 300 × 10m lattice
Structure formula steel pipe herringbone holding pole is made auxiliary pole and is lifted, and auxiliary pole is installed on the main material in side before and after middle cross-arm truss section top cover
At construction hole, auxiliary pole should arrange herringbone bracing wire in reverse side and lifting side, and during lifting, maximum hoisting weight can not be more than 6t;
S011: earth wire support and the lifting of limit cross-arm, according to pyramidal structure feature, hoisting component weight and design cross-arm auxiliary
Pole supporting construction hole payload values, takes line bracket, limit cross-arm to be unilaterally assembled into whole section of lifting respectively, lifting sequence: first
Lifting earth wire support, rear lifting limit cross-arm.Use 300 × 300 × 10m lattice steel pipe herringbone holding pole to make auxiliary pole to carry out
Lifting.
The present invention uses double embrace bar lifting straight line wine glass-shaped tower to greatly reduce construction safety risk, be easy to alpine terrain
Instrument transports, and provides safety assurance for tower erection, improves efficiency of construction and the economic effect of tower erection.
Accompanying drawing explanation
Fig. 1 a is that 300 × 300 lattice type pole split tower erection site operation arranges front view.
Fig. 1 b is that 300 × 300 lattice type pole split tower erection site operation arranges top view.
Fig. 2 a, Fig. 2 b are that pole is stood schematic diagram.
Fig. 3 is that pole promotes schematic diagram.
Fig. 4 a is top girdle ring colligation schematic diagram.
Fig. 4 b is root girdle ring colligation schematic diagram.
Fig. 5 a is that 300 × 300 × 16m lattice type pole decomposition group founds steel tower tower body schematic side view.
Fig. 5 b is that 300 × 300 × 16m lattice type pole decomposition group founds steel tower tower body front elevational schematic.
Fig. 6 is bracing wire schematic diagram on 300 × 300 × 16m lattice type pole tower.
Fig. 7 is that tangent tower lower bent lever hypomere lifts schematic diagram.
Fig. 8 is that tangent tower lower bent lever epimere lifts schematic diagram.
Fig. 9 is hypomere lifting schematic diagram of cranking arm on tangent tower.
Figure 10 is hypomere lifting schematic diagram of cranking arm on tangent tower.
Figure 11 is that middle cross-arm truss section lifts schematic diagram.
Figure 12 is that middle cross-arm double embrace bar lifts schematic diagram.
Figure 13 is the unilateral whole section of lifting schematic diagram of cross-arm.
Figure 14 a is the unilateral whole section of lifting schematic diagram of earth wire support.
Figure 14 b is the unilateral whole section of lifting schematic diagram of limit cross-arm.
Wherein,
In Fig. 1 a, Fig. 1 b: 1-300 × 300 × 16m lattice type pole；2-tackle pulley；3-suspension centre rope；4-waist hoop；5-rises
Hang steel wire rope；6-corner block；7-double hook；Bracing wire on 8-tower；9-hanging piece；10-controls nylon rope；11-controls steel wire rope.
In Fig. 2 a, Fig. 2 b: 1-300 × 300 × 16m lattice steel tube holding pole 2-5t coaster 3-hoisting wirerope 4-
Waist hoop.
In Fig. 3: 1-300 × 300 × 16m lattice steel tube holding pole 2-opening jigger 3-hoisting wirerope 4-root
Girdle ring 5-top, portion girdle ring 6-remains silent jigger (pole head pulley) 7-interim girdle ring 8-shackle 9-steel wire loop.
In Fig. 4 a, Fig. 4 b: 1-300 × 300 × 16m lattice steel tube holding pole 2-top girdle ring 3-root girdle ring 4-
Iron tower main material 5-shackle.
In Fig. 5 a, Fig. 5 b: 1-300 × 300 × 16m lattice type pole；2-tackle pulley；3-steel wire loop (suspension centre rope)；
4-waist hoop；5-hoisting wirerope；6-waist coaster；7-double hook；8-bracing wire steel wire rope；9-hanging piece；10-" eight " shape controls nylon rope；
11-controls steel wire rope；12-reinforcing material；13-reinforcement steel wire rope.
In Fig. 6: 1-bracing wire；2-double hook (bracing wire is removed after tightening up).
In Fig. 7: 1-300 × 300 × 16m pole；2-plays hanging pulley ancestral；Bracing wire on 3-pole tower；4-hanging piece；5-hanging piece
Tricing line；6-buries root rope；7-reinforcement wood；8-reinforcement bracing wire；9-pull rope；10-waist hoop.
In Fig. 8: 1-300 × 300 × 16m pole；2-plays hanging pulley ancestral；3-steel wire rope；Bracing wire on 4-tower；5-hanging piece；
6-hanging piece tricing line；7-buries root rope；8-waist hoop；9-suspension centre rope.
In Fig. 9: 1-300 × 300 × 16m pole；2-plays hanging pulley ancestral；3-pull rope；4-reinforcement bracing wire；5-tower pulls up
Line；6-waist hoop；7-hanging piece；8-nylon tricing line；9-buries root rope；10-corner block；11-suspension centre rope.
In Figure 10: 1-300 × 300 × 16m pole；2-lifts by crane tackle pulley；3-pull rope；Bracing wire on 4-tower；5-reinforcement
Bracing wire；6-corner block；7-waist hoop；8-hanging piece；9-nylon tricing line；10-buries root rope；11-cranks arm reinforcement steel wire rope；12-hangs
Point rope.
In Figure 11: 1-300 × 300 × 16m pole；2-lifts by crane tackle pulley；3-pull rope；4-corner block；On 5-tower
Bracing wire；6-waist hoop；7-reinforcement bracing wire；8-suspension centre rope；9-hanging piece；10-cranks arm reinforcement steel wire rope；11-buries root rope；12-nylon control
Rope making.
In Figure 12: 1-300 × 300 × 16m pole；2-lifts by crane tackle pulley；3-corner block；4-pull rope；5-reinforcement
Bracing wire；Bracing wire on 6-pole tower；7-waist hoop；9-reinforcement round log；8-hanging piece；10-cranks arm reinforcement steel wire rope；11-nylon controls
Rope；12-buries root rope.
In Figure 13: 1-300 × 300 × 10m pole；2-lifts by crane tackle pulley；3-assists pole overturn-preventing bracing wire；4-lifts by crane
Rope；5-lifts by crane reinforcement tackle pulley；6-suspension centre rope；The balance bracing wire of 7-reverse herringbone；8-300 × 300 × 16m pole；9-pole
Bracing wire on tower；10-nylon tricing line；11-buries root rope；12-hanging piece；13-pull rope.
In Figure 14 a, Figure 14 b: 1-300 × 300 × 10m herringbone holding pole；2-lifts by crane tackle pulley；3-suspension centre rope；4-assists
Pole overturn-preventing bracing wire；5-lifting rope；6-lifts by crane reinforcement tackle pulley；7-auxiliary pole reverse herringbone balance bracing wire；8-pull rope；
Bracing wire on 9-pole tower；10-300 × 300 pole；11-nylon tricing line；12-buries root rope；13-hanging piece.
Detailed description of the invention
Understandable, below in conjunction with the accompanying drawings to the present invention for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
Detailed description of the invention be described in detail.
Elaborate detail in the following description so that fully understanding the present invention.But the present invention can with multiple not
Being same as alternate manner described here to implement, those skilled in the art can do class in the case of intension of the present invention
Like promoting.Therefore the present invention is not limited by following public detailed description of the invention.
In order to allow those skilled in the art be better understood from the construction method of the present invention, the most first composition and the use to steel tower
Instrument briefly describe.
Steel tower parameter
Table 1 ZBC3020M34-84 Analysis of Parameters
2.1 summary of tower erection construction method and pole parameters
2.1.1 this engineering part steel tower is according to on-the-spot actual landform and traffic condition, intends using 4 300 × 300 lattices
Formula pole group founds tower method, and 300 × 300 pole has the features such as lightweight, easy to use and flexible.
2.1.2 lifting sequence: middle cross-arm cross-arm linkage section ground wire of cranking arm on tower leg tower body lower bent lever props up
Frame limit cross-arm.
2.1.3 pole major parameter: single 300 × 300 a length of 16m of pole, by 3 joint 4m standard knots, a joint 2m top
Joint and a joint 2m coxopodite composition, conduct oneself with dignity 610kg；
2.2 300 × 300 lattice steel tube holding poles use condition
2.2.1 it is fixed on root when pole waist hoop and time at root 4m, at 10 ° of its inclination angle, 30 ° of lifting rope inclination angle, draws
The line line with joint efforts angle 45 ° over the ground of angle 55 °, tricing line over the ground, take 1-1 lifting tackle pulley in the case of time allow lift heavy
1500kg, two pole associating balancing lifting weight allow 3000kg, and when beyond above-mentioned regulation lifting operating mode, lifting method should
Determine again after checking computations.
2.2.2 pole uses 2 road waist hoops to be fixed on inside four main materials of tower body, and pole top should be along other main material sides of three lower limbs
To arranging bracing wire on 3 towers.
When 2.2.3 lifting by crane, pole should arrange 2 road waist hoops, and waist hoop spacing should be not less than 4m, per pass waist hoop application φ 16 steel wire
Rope sling (is at least wound around three roads), and wherein waist of lower part hoop should be positioned at the node of iron tower structure, and waist of lower part hoop is connected with pole simultaneously
Take to be wound around wherein three modes being connected after being responsible for tower body, to prevent pole sliding.
When 2.2.4 promoting, pole should arrange at least three road waist hoops, upper shifting, and waist hoop spacing is not less than 4m.Waist hoop is forbidden
Use nylon rope.
2.2.5 tricing line angle over the ground not preferably greater than 45 °.
Force analysis and main tool select
According to iron tower structure feature and hanging piece weight, select Work tool by the verification of following operating mode, this engine request can be met.
Operating mode: maximum hoisting weight 1.5t(14.7kN), pole at 10 ° of inclination angle, 30 ° of lifting rope inclination angle, bracing wire make a concerted effort line angle over the ground
55 °, tricing line angle 45 ° over the ground.
Tower erection
Explanation is arranged in 3.1 job sites, refers to Fig. 1 a and Fig. 1 b:
3.1.1 wire drawing system is arranged: pole wire drawing system is made up of steel wire rope, double hook, and bracing wire is along the side of other three lower limbs
To layout, totally 3.
3.1.2 waist hoop system is arranged
3.1.2.1 bottom pole, waist hoop is positioned at pole root, and another road waist hoop should be arranged at and stand tower section top, with pole
The spacing of bottom waist hoop should be greater than 4m, is wound around pole shaft surrounding with steel wire loop, and junction must pad scantling and gunny.
3.1.2.2 in pole lifting process, at least three road girdle rings should be set, alternately upper move, it is ensured that at least two during lifting
Road above girdle ring stress, makes pole remain vertical state.
3.1.3 tackling system is arranged
3.1.3.1 the 1-1 tackle pulley being made up of head pulley, strand mill rope and end coaster is constituted, and lifting tackle pulley hangs over pole
In rotatable top cap.
(2) suspension centre rope uses steel wire loop or uses special suspender belt, is connected with end coaster link with shackle.
Trailer system
Pulling equipment uses motor-driven grinding mill.
3.1.5 bury root rope and tricing line is arranged
3.1.5.1 colligation by the rope of tower crane sheet lower end for burying root rope, bury root rope one end V-type steel wire loop with by tower crane
Sheet is connected, and the other end is fixed on the bracing wire of steel plate earth anchor and delays Song Qishang, uses manpower to control.
3.1.5.2 colligation is being tricing line by the rope of tower crane sheet upper end, generally selects nylon rope.
Below to construction method
3.2 assemblage construction method explanations
3.2.1 tower leg group is stood
Open according to tower leg weight, root, main material length, site condition etc., use bulk-breaking construction from part, i.e. found main material the most one by one
The method filling auxiliary material, owing to the method is conventional method, does not illustrates.
Pole group is stood
3.3.1 the tower leg main material top-hung coaster stood in group, utilizes hoisting wirerope to lift by crane pole inside main material.?
Tower leg section top and do 2 roads with steel wire loop at its 4m and promote waist hoop temporarily, waist hoop must not be wound around less than 3 roads.Such as Fig. 2 institute
Show.Pole is promoted desired location, as shown in Figure 3.
3.3.2 pole root waist hoop is utilized to be fixed on by pole on main material (as shown in Figure 4), and at distance pole root 4m
Under place or each lifting state, pole girdle ring installation site installs second waist hoop, then removes pole interim waist hoop.
Tower body lifts
3.4.1 tower body lifting
Pole sitting is inside tower body as shown in Figure 5, tower body take root hang+sheet two kinds of lifting modes such as hangs.Hang sheet weight
During less than 3.0t, take burst lifting before and after double embrace bar；When hanging sheet weight more than 3.0t, single pole root is taked to hang the side of rear front cover
Formula lifts.On tower, bracing wire is arranged as shown in Figure 6.
Pole promotes and adjusts
Pole promotes and adjusts first
3.5.1.1 pole should be arranged on inside main material and promote, upper and lower twice waist hoop be controlled.At lifting pole
Time, except being also applied at distance (up or down) waist hoop 4m arrange interim waist hoop as two pipe protections while need to arranging upper and lower waist hoop
It is controlled pole, prevents pole from toppling at lifting process.
3.5.1.2 other Third Mate's poles promote also according to this method and adjust.
3.5.1.3 every pole should accomplish fluently temporary guy on three road towers (respectively to the main material direction of other three lower limbs), with
Balance pole bears the power of different directions during lifting.
Tangent tower tower head lifts
Illustrate as a example by ZBC3020M34 tower lifts below.
3.6.1 lower bent lever hypomere lifts
3.6.1.1 lower bent lever hypomere takes double embrace bar to lift, and is divided into that front-back is whole hangs (left and right sides is assembled integrally), up and down
The mode of face envelope material lifts.
3.6.1.2 during front-back integral hoisting, use double embrace bar to lift, should strictly control to lift weight, during assembling, must not
Subsidiary above and below envelope material, lifting weight strictly should be not more than 1.5t by single pole lifting weight, and double embrace bar lifting weight is not more than
3t is controlled.
3.6.1.3 the lifting of lower bent lever hypomere is arranged as shown in Figure 7.
Lower bent lever epimere lifts
3.6.2.1 during lifting lower bent lever epimere, pole should take first to pitch ground, after the method that promotes again in place, pole is stretched
Root is in lower bent lever hypomere tower body, and root should be positioned at tower body flat mouth node, and (distance pole root is more than L/4 for root and waist
Place, wherein: L is pole length)) one waist hoop is respectively set；Lower bent lever epimere divides the left and right sides, every side to divide front-back whole to hang, on
The mode of front cover is lifted by crane below, and front-back uses single pole to lift by crane respectively, should strictly control hanging piece weight, must not attach during assembling
The envelope material of top and bottom, single pole lifting must not exceed 1.5t, double embrace bar lifting weight no more than 3t and is controlled.
3.6.2.2 the lifting of lower bent lever epimere is arranged as shown in Figure 8.
On crank arm hypomere lifting
3.6.3.1 rise and hang on when cranking arm hypomere, pole should take first to pitch ground, after the method that promotes again in place, by pole
Stretching root in lower bent lever section epimere tower body, pole root is seated at the node of lower bent lever upper-lower section waypoint；Root at pole
Portion respectively arrange with at the main material of lower bent lever upper cover away from its root L/4 (L: pole length) place together with waist hoop.On crank arm a hypomere point left side
Right both sides, the employing of interior outside is divided in every side, and double embrace bar lifts lifting, the mode of front-back front cover lifts, and the envelope material of front-back can
On Fu Dai, should strictly control hanging piece weight, double embrace bar lifts weight and must not exceed 3.0t simultaneously.
3.6.3.2 hypomere of cranking arm on lifting is arranged as shown in Figure 9.
On crank arm epimere lifting
3.6.4.1 rise and hang on when cranking arm epimere, pole should take first to pitch ground, after the method that promotes again in place, pole is stretched
Root is cranked arm in hypomere tower body in upper, and pole root is positioned at K node, pole root and on crank arm the top horizontal material of hypomere
Place arranges twice waist hoop.
3.6.4.2 epimere of cranking arm on divides left and right sides, every side to divide before and after's dough sheet to hang, the lifting of the lifting method in inside and outside side seal face,
Should strictly control hoisting weight, single pole hoisting weight cannot be greater than 1.5t simultaneously.
3.6.4.3 epimere of cranking arm on lifting is arranged as shown in Figure 10.
Middle cross-arm truss section lifts
3.6.5.1, before middle cross-arm truss section lifts, lifting pole, pole lifting process is cranked arm in tower body upper all the time
Side, pole stretches root and cranks arm in epimere tower body in upper, and pole root is positioned at the node inside horizontal material of cranking arm.
3.6.5.2 in every side, cross-arm truss section (is taked to dissipate first with single pole first with the lower cover of single pole truss hoisting
The mode hung lift respectively the connecting plate with middle cross-arm section of cranking arm, four horizontal materials and every face material), the single pole of recycling divides
Front and back dough sheet hangs (hanging piece must not band front cover material), and the mode finally carrying out recycling single pole end face front cover lifts.Should during lifting
The each hanging piece weight of strict control, single pole hoisting weight must not exceed 1.5t.
The lifting of middle cross-arm truss section is arranged as shown in Figure 11.
Middle cross-arm beam segments lifts
3.6.6.1, in lifting during cross-arm beam segments, it is in place that pole takes first to drop the method promoted afterwards, and operating process is all upper
Cranking arm and carry out inside middle cross-arm truss, pole stretches root in the upper section of cranking arm epimere tower body, stretches root length degree and should be greater than pole length
1/4, pole root is seated at horizontal material lateral surface node of cranking arm.
Middle cross-arm beam segments, takes front-back double embrace bar to lift, top and bottom front cover mode lifts.Front-back is adopted
Lifting method with pack double embrace bar, top and bottom envelope material must not bring, and strict its lifting weight that controls must not exceed 4.0t.
The lifting of middle cross-arm beam segments is arranged as shown in Figure 12.
Cross-arm linkage section lifts
3.6.7.1 cross-arm linkage section takes unilateral whole section of lifting, uses 300 × 300 × 10m lattice steel pipe herringbone to embrace
Bar is made auxiliary pole and is lifted, and auxiliary pole is installed on before and after middle cross-arm truss section top cover at the construction hole of the main material in side, auxiliary
Pole should arrange herringbone bracing wire in reverse side and lifting side, and during lifting, maximum hoisting weight can not be more than 6t.
3.6.7.2 the unilateral whole section of lifting of cross-arm linkage section is arranged as shown in Figure 13.
Earth wire support and the lifting of limit cross-arm
3.6.8.1 according to pyramidal structure feature, hoisting component weight and design cross-arm auxiliary pole supporting construction Kong He
Load value, takes line bracket, limit cross-arm to be unilaterally assembled into whole section of lifting, lifting sequence: first lift earth wire support, lift afterwards respectively
Limit cross-arm.Use 300 × 300 × 10m lattice steel pipe herringbone holding pole to make auxiliary pole to lift.
3.6.8.2 earth wire support, the unilateral whole section of lifting of limit cross-arm are arranged as shown in Figure 14.
The present invention utilizes double embrace bar group to stand in 1000kV UHV transmission line, and cross-arm is longer, it is higher to crank arm, weight is bigger
Steel tower construction method when in the past lifting straight line wine glass-shaped tower, conventional is the construction method of interior outstanding external cable list pole, but
In the case of construction landform is limited, owing to weight is relatively big, it is higher to crank arm, cross-arm is relatively big, outstanding external cable list pole in using
It is assembled with the unsafe factors such as big, big, the difficulty in place of external cable angle over the ground in pole inclination angle, it is impossible to construction safety produces to provide and protects
Barrier.This engineering uses double embrace bar lifting straight line wine glass-shaped tower to greatly reduce construction safety risk, be easy to the instrument of alpine terrain
Transport, provides safety assurance for tower erection, improves efficiency of construction and the economic effect of tower erection.
Although the present invention is open as above with preferred embodiment, but it is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, may be by the method for the disclosure above and technology contents to this
Bright technical scheme makes possible variation and amendment, therefore, every content without departing from technical solution of the present invention, according to the present invention
Technical spirit any simple modification, equivalent variations and modification that above example is made, belong to technical solution of the present invention
Protection domain.The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent
Change and modify, all should belong to the covering scope of the present invention.
Claims (1)
1. one kind utilizes double embrace bar group to found 1000kV tangent suspension tower construction method, it is characterised in that comprise the following steps:
S01: open according to tower leg weight, root, main material length, site condition, uses bulk-breaking construction from part to complete tower leg group and stands；
S02: pole group is vertical to be comprised the following steps:
S021: the tower leg main material top-hung coaster stood in group, utilizes hoisting wirerope to lift by crane pole inside main material；At tower leg
Section top and do 2 roads with steel wire loop at its L/4 and promote waist hoop temporarily, waist hoop must not be wound around and is less than 3 roads；Pole is promoted institute
Needing position, wherein L is pole length；
S022: utilize pole root waist hoop to be fixed on main material by pole, and distance pole root 4m at or respectively lift state
Lower pole girdle ring installation site installs second waist hoop, then removes pole interim waist hoop；
S03: tower body lifts, and tower body is taked root to hang and hung two kinds of lifting modes with sheet；
When hanging sheet weight less than 3.0t, take burst lifting before and after double embrace bar；When hanging sheet weight more than 3.0t, take single pole root
The mode hanging rear front cover lifts；
S04: pole promotes and comprises the following steps with adjustment:
S041: pole should be arranged on inside main material and promote, upper and lower twice waist hoop be controlled；
When lifting pole, except being also applied at distance waist hoop 4m arrange interim waist hoop as two while need to arranging upper and lower waist hoop
Pipe protection is controlled pole, prevents pole from toppling at lifting process；
S042: other three secondary poles promote also according to this method and adjust；
S043: every pole should accomplish fluently temporary guy on three road towers, with balance pole lifting during bear different directions
Power；
S05: lower bent lever hypomere lifts, and lower bent lever hypomere takes double embrace bar to lift, and is divided into front-back whole to hang, the side of top and bottom envelope material
Formula lifts；
S06: lower bent lever epimere lifts, during lifting lower bent lever epimere, pole should take first to pitch ground, after the method that promotes again just
Position, pole stretches root in lower bent lever hypomere tower body, and root should be positioned at tower body flat mouth node, and root and waist respectively arrange one waist
Hoop；Lower bent lever epimere divides that the left and right sides, every side divide front-back whole to hang, the mode of top and bottom front cover is lifted by crane, and front-back uses single armful
Bar lifts by crane respectively, should strictly control hanging piece weight, must not attach the envelope material of top and bottom during assembling, and single pole lifting must not exceed
1.5t, double embrace bar lifting weight no more than 3t are controlled；
S07: hypomere of above cranking arm lifts, and rises and hangs on when cranking arm hypomere, pole should take first to pitch ground, after the method that promotes again just
Position, stretches root in lower bent lever section epimere tower body by pole, and pole root is seated at the node of lower bent lever upper-lower section waypoint；?
The root of pole respectively arrange with at the main material of lower bent lever upper cover at its root L/4 together with waist hoop；On crank arm hypomere divide left and right two
Side, the employing of interior outside is divided in every side, and double embrace bar lifts lifting, the mode of front-back front cover lifts, and the envelope material of front-back can attach
On, should strictly control hanging piece weight simultaneously, double embrace bar lifts weight and must not exceed 3.0t；
The lifting of S08: middle cross-arm truss section comprises the following steps:
S081: middle cross-arm truss section lift before, lifting pole, pole lifting process all the time inside upper tower body of cranking arm, pole
Stretching root and crank arm in epimere tower body in upper, pole root is positioned at the node inside horizontal material of cranking arm；
S082: in every side, cross-arm truss section is first with the lower cover of single pole truss hoisting, the single pole of recycling divides before and after's dough sheet to hang,
The mode finally carrying out recycling single pole end face front cover lifts；Each hanging piece weight, single pole lifting should be strictly controlled during lifting
Weight must not exceed 1.5t；
The lifting of S09: middle cross-arm beam segments comprises the following steps:
S091: in lifting during cross-arm beam segments, it is in place that pole takes first to drop the method promoted afterwards, operating process all crank arm upper and
Carrying out inside middle cross-arm truss, pole stretches root in the upper section of cranking arm epimere tower body, stretches root length degree and should be greater than pole length 1/4, embraces
Pole-footing portion is seated at horizontal material lateral surface node of cranking arm；
S092: middle cross-arm beam segments, takes front-back double embrace bar to lift, top and bottom front cover mode lifts；
Front-back uses pack double embrace bar to lift method, and top and bottom envelope material must not bring, and strict its lifting weight that controls must not surpass
Cross 4.0t；
S010: cross-arm linkage section lifts, and cross-arm linkage section takes unilateral whole section of lifting, uses 300 × 300 × 10m lattice
Steel pipe herringbone holding pole is made auxiliary pole and is lifted, and auxiliary pole is installed on the construction of the main material in side before and after middle cross-arm truss section top cover
At hole, auxiliary pole should arrange herringbone bracing wire in reverse side and lifting side, and during lifting, maximum hoisting weight can not be more than 6t;
S011: earth wire support and the lifting of limit cross-arm, according to pyramidal structure feature, hoisting component weight and design cross-arm auxiliary pole
Supporting construction hole payload values, takes line bracket, limit cross-arm to be unilaterally assembled into whole section of lifting, lifting sequence: first lift respectively
Earth wire support, rear lifting limit cross-arm；
Use 300 × 300 × 10m lattice steel pipe herringbone holding pole to make auxiliary pole to lift.
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| CN114622766B (en) * | 2022-02-07 | 2023-06-16 | 北京城建集团有限责任公司 | Construction method of lightning protection tower |
| CN114622768B (en) * | 2022-02-07 | 2023-06-30 | 北京城建集团有限责任公司 | Construction scheme for constructing scaffold combined with external stay wire holding pole assembly self-standing lightning protection tower |
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