CN106703420A - Large-span ball joint spherical wire frame cluster rocker hoisting construction method - Google Patents

Large-span ball joint spherical wire frame cluster rocker hoisting construction method Download PDF

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Publication number
CN106703420A
CN106703420A CN201710075186.0A CN201710075186A CN106703420A CN 106703420 A CN106703420 A CN 106703420A CN 201710075186 A CN201710075186 A CN 201710075186A CN 106703420 A CN106703420 A CN 106703420A
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CN
China
Prior art keywords
dead man
lifting
wire frame
reticulated dome
ball
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CN201710075186.0A
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Chinese (zh)
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CN106703420B (en
Inventor
李玉平
赵喆
杨仕儒
周海文
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山西宏厦建筑工程第三有限公司
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Publication of CN106703420A publication Critical patent/CN106703420A/en
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Publication of CN106703420B publication Critical patent/CN106703420B/en

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • E04B1/1903Connecting nodes specially adapted therefor
    • E04B1/1906Connecting nodes specially adapted therefor with central spherical, semispherical or polyhedral connecting element

Abstract

The invention relates to the technical field of lifting and hoisting, and in particular to a large-span ball joint spherical wire frame cluster rocker hoisting construction method. The large-span ball joint spherical wire frame cluster rocker hoisting construction method is characterized in that a rocker cluster is adopted, and multiple double-trolley groups (which are used for reducing the speed and reducing a tractive force) are suspended and are connected with slings in suspension points of a wire frame; a winch is used for combining tractive forces, the pulley groups drive the wire frame to move upwards synchronously, the whole wire frame is uniformly lifted to exceed the standard height of the top part of a column, a steel wire rope of one side winch is utilized to release slowly, the other side winch is locked to be in stillness, and the whole wire frame is moved to align to the top part of the column; then all winches are used for descending the wire frame to the top part of the column, and the wire frame is adjusted and fixed; assembling of the wire frame is carried out on the ground, the construction is simple, convenient and safe, the engineering quality is easy to control, the comprehensive benefit and the economic benefit are obviously increased, and the safety risks are reduced.

Description

Large span ball node Reticulated dome group's dead man lifting construction engineering method

Technical field

The present invention relates to lifting, hoisting technology field, specially large span ball node Reticulated dome group dead man lifting construction Engineering method.

Background technology

Because existing venue buildings, storage building span are increasing, past large span grid roofing, using setting up full hall Scaffold is taken a lot of work, the construction period is long, hidden danger is more as construction operation platform;According to crane lifting, machinery expenses are high, and because Unbalance stress, is easily caused rack deformation.

The content of the invention

In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of large span ball node Reticulated dome group's dead man Lifting construction engineering method.

The present invention adopts the following technical scheme that realization:Large span ball node Reticulated dome group's dead man lifting construction work Method, comprises the following steps:Making smallest assembled rigid unit simultaneously spreads assembled, first stage lifting, the outside assembly of Reticulated dome, pulls out to surrounding The installation of bar cluster, second stage lifting, the Reticulated dome outwards assembled fixation with Reticulated dome;

Wherein, the first stage lifting Reticulated dome is lifted using tripod, hoisting depth with meet next row lower edge rod member and The setting height(from bottom) of ball node is defined;

The installation of dead man cluster includes that levelling of the land compacting, steel pipe manufacturing are opened into dead man, dead man positioning, guy line anchor hole positioning Digging, embedded guy earth anchor, the vertical correction of dead man group, cable wind rope adjustment tensioning, the installation of dead man assembly pulley and lifting are twisted to grind and installed;

Second stage lifting uses dead man cluster, each suspension centre hoist cable of multigroup assembly pulley and Reticulated dome is connected, by strand mill group Traction each group assembly pulley is closed, drives Reticulated dome synchronously to rise, by Reticulated dome entirety uniform lift to more than capital absolute altitude;

The steel wire rope for twisting grain using side of fixing of Reticulated dome loosens, and opposite side strand mill pinning is motionless, and Reticulated dome is whole Body displacement alignment capital, then dropped on capital rack with mill is all twisted, and adjusted fixation.

Above-mentioned large span ball node Reticulated dome group's dead man lifting construction engineering method, makes concretely comprising the following steps for smallest assembled rigid unit Four locus of lower edge ball are carried out into unwrapping wire, levelling, rule side according to ball-joint point coordinates, makes four lower edge balls in same level On face, four lower booms are installed successively, connection forms lower edge grid, and its diagonal deviation is no more than 3mm, then with wherein adjacent Two ball nodes and connected lower boom be installation form, wind up ball and two adjacent web members of cone are assembled into " people " word, is then co-mounted on four lower edge ball nodes with other two web members, forms a basic smallest assembled rigid unit.

Above-mentioned large span ball node Reticulated dome group's dead man lifting construction engineering method, uses in second stage lifting and hangs chi method It is observed, on periphery, lower edge ball each one suspended from steel ruler of the same race, fasten on Reticulated dome rod member, and bottom is solid by steel ruler one end Ground is scheduled on, each steel ruler is observed with spirit level then, rack can extract steel ruler out while Reticulated dome is lifted, Observation personnel judge whether lifting is synchronous by observing the reading of steel ruler.

The present invention starts symmetrically to extend out assembled formation space cell using rack center, and stabilization is formed with the mutual drawknot of dead man System is support mechanism, is lifting device with assembly pulley, rack is extended out assembled and lifting alternately, and each group dead man progressively connects Power is lifted, and by rack lifting to specified location, alleviates labour intensity, improves operating efficiency, reduces labour cost.

Brief description of the drawings

Fig. 1 is the structural representation of smallest assembled rigid unit.

Fig. 2 is smallest assembled rigid unit to the structural representation after surrounding diffusion assembly.

Fig. 3 is the scheme of installation of dead man top sheave group.

Fig. 4 is that Reticulated dome lifts schematic diagram.

In figure:1- fixed pulley groups, 2- running blocks, 3- runs and restricts, 4- leading blocks, 5- earth anchors, 6- cable wind ropes, 7- dead mans, 8- hoist cables, 9- Reticulated domes, 10- concrete posts, 11- electronic crane scales.

Specific embodiment

Large span ball node Reticulated dome group's dead man lifting construction engineering method, comprises the following steps:Make smallest assembled rigid unit and to Surrounding diffusion is assembled, the first stage is lifted, Reticulated dome outwards assembly, the installation of dead man cluster, second stage lifting, sphere net The frame outwards assembled fixation with Reticulated dome;Wherein, first stage lifting is lifted Reticulated dome using tripod, hoisting depth It is defined by the setting height(from bottom) for meeting next row lower edge rod member and ball node;The installation of dead man cluster includes levelling of the land compacting, steel Control be made dead man, dead man positioning, guy line anchor hole positioning is excavated, guy earth anchor is embedded, the vertical correction of dead man group, cable wind rope adjustment Tensioning, dead man assembly pulley are installed and lifting twists mill and installs;Second stage lifting uses dead man cluster, by multigroup assembly pulley and sphere Each suspension centre hoist cable of rack is connected, and by twisting mill combination traction each group assembly pulley, drives Reticulated dome synchronously to rise, by Reticulated dome Overall uniform lift is to more than capital absolute altitude;The fixed steel wire rope for twisting grain using side of Reticulated dome blows slowly and loosens, another Side strand mill pinning is motionless, and Reticulated dome integral shift is aligned into capital, then is dropped on capital rack with all strand mills, and plus To adjust fixation.

During specific implementation, smallest assembled rigid unit is made:Using a conical element in Reticulated dome centre as most basic Four locus of lower edge ball are carried out unwrapping wire, levelling, rule side by module units according to node coordinate, make four lower edge balls same On one horizontal plane, successively install four lower booms, connection form lower edge grid, its diagonal deviation be no more than 3mm, then with Two wherein adjacent ball nodes and connected lower edge are installation form, and wind up ball and two adjacent web members of cone are spelled " people " word is dressed up, is then co-mounted on four lower edge ball nodes with other two web members, form a basic small spelling list Unit, as shown in Figure 1.Using this smallest assembled rigid unit as assembled formwork, assembly is symmetrically spread to surrounding.All lower edge balls add branch Support, the position of other nodes should be controlled during assembly on the basis of the position of bearing, absolute altitude, and should at any time check correction, Ensure installation accuracy, reduce accumulated error, as shown in Figure 2.

First stage tripod is lifted and assembled:First stage lifting sets up 10 suspension centres using tripod, and 10 5 tons are fallen Chain is lifted, and hoisting depth is defined by meeting the setting height(from bottom) of next row lower edge rod member and steel ball, and lifting speed coordinates Construction of The Grids Schedule requirement, assembly connects dead man suspension centre after being completed to dead man position.

Dead man cluster is installed

Dead man cluster technological process is installed:Levelling of the land compacting → steel pipe manufacturing is fixed into dead man → dead man positioning → guy line anchor hole Position excavation → guy earth anchor buries the → vertical correction → cable wind rope adjustment tensioning → dead man assembly pulley installation → lifting strand mill of dead man group Install.

Steel pipe manufacturing is into dead man:Dead man does lifting support using φ 402 × 12mm steel pipes, and often eradicate bar 24m long, on ground Docking assembling is carried out, steel tube end part is opened up into groove, by lined duct in seam crossing(Length=150mm, thickness=dead man wall thickness=12mm)Or Outer stiffener, by the technique welding of single-side welding double-side forming, makes interface form double V-groove, should be by overall dead man before welding Straightening, carries out a fixed weldering, it is ensured that the glacing flatness after dead man welding, is respectively welded in the end and root of dead man and is slided for fixed The hanger of wheel, and add floor;Lifting Lug is welded using transfixion with dead man, and hanger plate thickness is 2.0 times of dead man wall thickness, Length is advisable with outside dead man not less than 400 ㎜, and plate is wide not less than 250mm, and pulley suspension point is not small away from hanger edges of boards edge In bore dia.Dead man top cable wind rope mooring points will be with cable wind rope point-blank, the reversed pulley on shackle plate and dead man base Mooring points is in the parallel plane with dead man.After the completion of dead man combination, assembly pulley is fixed on dead man and main rope is penetrated.And by cable Wind rope is fixed by contact angle connection.Cable wind rope fixed vertical is used, and the cable wind rope of dead man is interknited into tensioning.Peripheral guy Restrict at according to field condition respectively fixedly anchor.

Vertical dead man:Being computed vertical dead man with autocrane and can twist mill hand fit, and dead man base size is 600 × 600 mm × 70 mm, dead man base is by 20 mm steel plates and 12 0.6m 50 × 3.5mm of φ steel pipe manufacturings long, and dead man institute is in place The ground put should carry out basement process, it is ensured that bearing capacity is more than 150KN/m2, 500mm 37 lime earth bed courses can be more than using thickness Or 300 thick concrete bed courses, process range is more than dead man base wild card profile 500mm.Lifting ears are installed and are fastened interim in dead man top Cable wind rope, is fixed temporarily, after all dead mans are erected, all levels and oblique pull cable wind rope is all drawn, and is reached and set After meter is required, interim cable wind rope is removed, and supervised within 24 hours with special messenger, in case scene has vehicular traffic to touch extension cable wind rope, adjusted It is whole to design attitude, and ensure dead man perpendicularity.Start that assembly pulley, installation such as Fig. 3 institutes of assembly pulley are installed after dead man is vertical Show, the absolute altitude in place and whole height when dead man height is according to network frame hoisting are designed.Assemble dead man and be fabricated to lifting , be segmented for dead man after the completion of network frame hoisting remove by post.Assembly pulley wears method using flower, and every group of dead man sets two sets of assembly pulleys and fasten 4 Suspension centre, is lifted using two 5 tons of strand mills.

Dig earth anchor:According to construction condition, ground anchor pit is dug(Whether ground anchor pit should check soil condition after excavating Meet design requirement).The size of ground anchor pit is 2000 × 700mm, ground anchor pit depth 2500mm, buries 2 φ 165 × 10mm steel pipes Length direction is cheated along anchor, two bottom sides are dug a hole, four steel pipes of 140 × 5mm of φ, both sides are laterally added again above steel pipe along anchor hole Dig a hole embedded, in order to stabilization lower section main stress steel pipe, main stress steel pipe is embedded in bottom, ground anchor line is bifilar a diameter of φ The steel wire rope of 21.5mm, the angle of ground anchor line and level ground will with the angle automatching of cable wind rope, along the horizontal centre of ground anchor pit Position shovels out slope, with ensure with the same angle of cable wind rope, ground anchor pit backfill will select cohesive soil, it is impossible to select sandy soil and can not There are stone and impurity, backfill is per the steps of 250mm mono- and hand compaction is to top.

Earth anchor Force Calculation.Whether is earth anchor stability under loading, is the key of whole Hoisting Program success or failure, due to the stress of earth anchor It is decided by the construction and local soil condition of earth anchor again, at present, though there are various theoretical calculation formulas, is difficult to determine actually to receive Force value, therefore, important stress earth anchor should do experiment, and check its buckling safety factor(k≥2).According to rack integral hoisting feature. The earth anchor of the oblique guy of fixation should reinforce oblique loading earth anchor using oblique loading earth anchor and vertical backplate.

In for hoisting process, when fastening Sling Rope, every steel wire rope must assure that steel wire rope is not killed mutually and stress point Through the centre of sphere;Ensure steel wire rope during network frame hoisting, without impinging on rod member, and Sling Rope and dead man angle ≯ 5 °, it is two-way It is arranged symmetrically.Angle ≮ 45 ° of Sling Rope and suspension centre ball.

Second stage dead man is lifted and assembled, and second stage twists mill conduct using 10 402 × 12mm of Ф dead mans and 20 Main hanging device.

It is the important guarantee for implementing and checking whole Hoisting Program integrity comprehensively that examination is hung, and the purpose that examination is hung has three:One The security reliability for checking crane gear, two is to check influence of the suspension centre to net rack installation, three be coordinate from commanding to lifting by crane, Guy, the total manoeuvre for slipping rope and strand mill operation.The assembled welding of rack is finished through after the assay was approved can beginning rack integral hoisting. Examination is carried out before lifting to hang.

The way that examination is hung:Mill fixation will be twisted first, and adjustment cable wind rope makes dead man vertical, slowly promotes twisting mill, makes net Frame is from support, if rack offsets to one side, stops lifting, after adjustment cable wind rope is elastic, then lifts, adjusts until rack does not have There are horizontal displacement, network frame hoisting to stop lifting after leaving support 300mm, hoisting machine tool is checked comprehensively, by all problems All solve, it is ensured that perfectly safe.Inspection project includes whether dead man is vertical, and whether cable wind rope has been tensioned, and dead man is upper and lower all Whether snap ring is tightened, and cable wind rope card quantity, tightens degree, whether there is damage and slip is released, and runs whether rope has loosening, twists mill position And a series of equipment field conditions relevant with lifting such as jack in place.

Rack integral hoisting:Examination hang inspection it is errorless after, if the full-time people of commander in chief one, some names of observer, the division of labor is clear and definite, duty Appoint to people, you can formal lifting.Rack must accomplish that synchronous coordination is lifted by crane in lifting process according to each Hanging point's coordinates difference of rack (The lifting speed of each suspension centre is adjusted according to the coordinate difference of each suspension centre), it is ensured that two neighboring lifting point rises difference control adjacent In the 1/400 of suspension centre distance, consecutive points lifting highness change is appropriate in below 100mm, and the reality at each suspension centre is checked at any time Force-bearing situation and each anchor point safe coefficient, after lifting is stopped after the height that rack reaches design requirement, grind locked by all twisting, Start the in bulk of the circle rod member of periphery one, all rod member in bulk is assembled completes, and after bearing welding is finished, this lifting is fully completed, Encorbelment part rod member assembly.

During rack integral hoisting, the synchronism of each suspension centre raising and decline is should ensure that.Keep rack all the time level rise or Decline is highly important, rack is produced torsional deformation in itself, causes the hurried change of hoisting mechanism load, or even The success or not of the whole work of influence.Therefore following measures must be taken, ensures that lifting is synchronous.

Synchronisation measures:Winding method and pulley the door number of hoisting sheave steel wire rope should be consistent;Hoist rope it is straight Footpath should select same specification(Same strength grade), because the diameter of hoist rope influences whether to twist the diameter of mill, and directly Influence twists the linear velocity of grinding rope;The initial wrap number and length that lifting twists steel wire rope on mill reel are preferably unified, and By the tension force of steel wire rope in same numerical value before formal lifting.20 electric tackles that lifting is used must set control and synchronously carry The branch switch controller used when the master switch controller for rising and the mill fine setting of each strand, enters during lifting according to actual hoisting depth difference Row fine setting, each suspension centre hangs 20 tons of wireless electronic hanging balances, lifting load all the time is reached into each branch respectively respectively On controller, whether the change that lifting commander in chief can observe load on each shunt controller by supervisory control desk is synchronous, finds When weightless, it is finely adjusted in time, it is ensured that rack Synchronous lifting.

Operation training must be synchronized before formal lifting, the operation for enabling strand to grind is unified, i.e., in centralized and unified commander It is lower to operate simultaneously.

It is observed using chi method is hung, on periphery, lower edge ball each one suspended from 5 meters of steel ruler of the same race, fasten by steel ruler one end On rod member for grid, bottom is fixed on ground(Absolute altitude is consistent), each steel ruler is observed with spirit level then(Often lifted 500mm is measured once), rack can extract steel ruler out while rack is lifted, observation personnel by observe the reading of steel ruler to Whether synchronously lifting commander in chief personnel report lifting, adjust the lifting velocity of each dead man in time so as to commander in chief.

Vernier control in hoisting process will be carried out using tackle pulley, adjustment in need position adjustment tackle pulley match somebody with somebody Close measurement and control instrument and be finely adjusted control.Due to using fourfold block group, so during hoisting grid, lifting power set Motion 8L distances, rack movement L distances, so can just realize the height fine adjusting function of hoisting grid by adjusting hanging apparatus;Hang The fine setting of rack level angle is filled, can be realized by connecting the fine setting tackle pulley between network frame hoisting point and Hoisting tackle group.

When rack is attached at bearing, by rack be lifted beyond bearing and meet installation encorbelment end rack, in bearing Place sets up jenny scaffold and is completed as operation platform the hoop net frame of outermost one, jenny scaffold with welding position completion And move.

Lifting dead man is removed and coordinated using 50t autocranes, by dead man from decorating position vertical-lift to more than rack Absolute altitude, then horizontally rotates and is removed the method that dead man is placed into ground.Just hung using a bit, one is set at the top of dead man Individual suspension centre, it is ensured that keep plumbness in dead man unloading process.Crane is lifted, and hoist cable is painstaking, makes dead man major part gravity load Undertaken by crane.Adjacent position dead man sets interim cable wind rope, prevents it from inclining, and unclamps and intends removing dead man and other dead man tops The taut string for binding a plait and cable wind rope of connection.Dead man is integrally lifted, and dead man is extracted out from rack top.

Compared with prior art, the beneficial effects of the invention are as follows:Spherical net brace is a kind of new roof system load-carrying members, category In multiple indeterminate space structure system, it changes the stress of plane roof truss structure, can bear to the lotus of each side Carry.Its structure novel and beautiful, work force path is simple and direct, and rod member is regular strong, and from heavy and light, space is big, and span is big.Between rod member All using being welded to connect, cost, easy to operate is reduced.The present invention adopts new technology, the four of new technology, new equipment, new material New technology, Large-span Spherical rack is effectively controlled in rod member processing and fabricating, bar using advanced equipment, advanced technology etc. Part is assembled, and the common quality defect of assembled process alleviates labour intensity, improves operating efficiency, reduces labour cost, is saved Material.

Claims (3)

1. large span ball node Reticulated dome group dead man lifting construction engineering method, it is characterised in that comprise the following steps:Make small spelling Unit is simultaneously carried to surrounding diffusion assembly, first stage lifting, the outside assembly of Reticulated dome, the installation of dead man cluster, second stage Rise, the Reticulated dome outwards assembled fixation with Reticulated dome;
Wherein, the first stage lifting Reticulated dome is lifted using tripod, hoisting depth with meet next row lower edge rod member and The setting height(from bottom) of ball node is defined;
The installation of dead man cluster includes that levelling of the land compacting, steel pipe manufacturing are opened into dead man, dead man positioning, guy line anchor hole positioning Digging, embedded guy earth anchor, the vertical correction of dead man group, cable wind rope adjustment tensioning, the installation of dead man assembly pulley and lifting are twisted to grind and installed;
Second stage lifting uses dead man cluster, each suspension centre hoist cable of multigroup assembly pulley and Reticulated dome is connected, by strand mill group Traction each group assembly pulley is closed, drives Reticulated dome synchronously to rise, by Reticulated dome entirety uniform lift to more than capital absolute altitude;
The steel wire rope for twisting grain using side of fixing of Reticulated dome loosens, and opposite side strand mill pinning is motionless, and Reticulated dome is whole Body displacement alignment capital, then dropped on capital rack with mill is all twisted, and adjusted fixation.
2. large span ball node Reticulated dome according to claim 1 group dead man lifting construction engineering method, it is characterised in that system Make concretely comprising the following steps for smallest assembled rigid unit carries out unwrapping wire, levelling, rule side according to ball-joint point coordinates by four locus of lower edge ball, makes Four lower edge balls install four lower booms successively on same horizontal plane, and connection forms lower edge grid, and its diagonal deviation is not It is then installation form with two wherein adjacent ball nodes and connected lower boom more than 3mm, by wind up ball and the phase of cone Two adjacent web members, are assembled into " people " word, are then co-mounted on four lower edge ball nodes with other two web members, form one Individual basic smallest assembled rigid unit.
3. large span ball node Reticulated dome according to claim 1 and 2 group dead man lifting construction engineering method, it is characterised in that Be observed using hanging chi method in second stage lifting, on periphery lower edge ball suspended from steel ruler of the same race each one, steel ruler one end Fasten on Reticulated dome rod member, bottom is fixed on ground, each steel ruler is observed with spirit level then, carried in Reticulated dome Rack can extract steel ruler out while liter, and observation personnel judge whether lifting is synchronous by observing the reading of steel ruler.
CN201710075186.0A 2017-02-13 2017-02-13 Large span ball node Reticulated dome group's dead man lifting construction engineering method CN106703420B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108396970A (en) * 2018-03-15 2018-08-14 江苏恒久钢构有限公司 A kind of integral installation method of plane grid
CN109138452A (en) * 2018-10-19 2019-01-04 青岛建集团有限公司 Heavy construction bolt sphere steel pipe rack entirety fast lifting construction technology
CN110029829A (en) * 2019-05-27 2019-07-19 中国十九冶集团有限公司 Latticed shell structure jacks construction method of installation

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CN201785162U (en) * 2010-09-09 2011-04-06 中国十五冶金建设有限公司 Pull pole hoist for arc gird
CN102877547A (en) * 2012-10-16 2013-01-16 北京市机械施工有限公司 Steel net rack installation method for integrally improving high-altitude moving and positioning
CN103075017A (en) * 2013-02-01 2013-05-01 徐州中煤百甲重钢科技有限公司 Super-long-span cylindrical shell lattice structure construction method
CN103352576A (en) * 2013-07-24 2013-10-16 山东锦城钢结构有限责任公司 Externally expanding, assembling, converting and lifting method for medium/small span steel structure roof net rack
WO2015087774A1 (en) * 2013-12-10 2015-06-18 株式会社Ihi Dome-shaped roof construction method and dome-shaped roof intermediate structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201785162U (en) * 2010-09-09 2011-04-06 中国十五冶金建设有限公司 Pull pole hoist for arc gird
CN102877547A (en) * 2012-10-16 2013-01-16 北京市机械施工有限公司 Steel net rack installation method for integrally improving high-altitude moving and positioning
CN103075017A (en) * 2013-02-01 2013-05-01 徐州中煤百甲重钢科技有限公司 Super-long-span cylindrical shell lattice structure construction method
CN103352576A (en) * 2013-07-24 2013-10-16 山东锦城钢结构有限责任公司 Externally expanding, assembling, converting and lifting method for medium/small span steel structure roof net rack
WO2015087774A1 (en) * 2013-12-10 2015-06-18 株式会社Ihi Dome-shaped roof construction method and dome-shaped roof intermediate structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108396970A (en) * 2018-03-15 2018-08-14 江苏恒久钢构有限公司 A kind of integral installation method of plane grid
CN109138452A (en) * 2018-10-19 2019-01-04 青岛建集团有限公司 Heavy construction bolt sphere steel pipe rack entirety fast lifting construction technology
CN110029829A (en) * 2019-05-27 2019-07-19 中国十九冶集团有限公司 Latticed shell structure jacks construction method of installation

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