CN104746883B - A kind of arcuate space truss lifts construction method of installation with three machines - Google Patents

A kind of arcuate space truss lifts construction method of installation with three machines Download PDF

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Publication number
CN104746883B
CN104746883B CN201510140899.1A CN201510140899A CN104746883B CN 104746883 B CN104746883 B CN 104746883B CN 201510140899 A CN201510140899 A CN 201510140899A CN 104746883 B CN104746883 B CN 104746883B
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China
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space truss
arcuate space
truss
suspension
lifting
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CN201510140899.1A
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Chinese (zh)
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CN104746883A (en
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赵懿琼
袁国平
赵宪文
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浙江中南建设集团钢结构有限公司
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Publication of CN104746883A publication Critical patent/CN104746883A/en
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Abstract

The invention discloses a kind of arcuate space truss lifts construction method of installation with three machines, this construction method comprises the following steps:Emulation determine three suspension centres of center of gravity → setting of arcuate space truss and three loop wheel machines → using three loop wheel machines carry out tread flaking work → treat tread flaking carry out removing after the completion of working just work → arcuate space truss is lifted on platform → arcuate space truss is fixed on platform.This construction method of installation is simply easily realized, and installation effectiveness is high, and science is convenient, save cost of labor, significantly reduce lifting cost uses.By by whole arcuate space truss tread flaking, remove just, lifting, reduce truss and divide a section docking, correction, carry out overhead welding also without between point section truss and point section truss, thus improving installation quality and welding quality, shortening the truss installa-tion duration and saving truss lifting cost is used.

Description

A kind of arcuate space truss lifts construction method of installation with three machines

Technical field

The present invention relates to a kind of arcuate space truss lifts construction method of installation with three machines.

Background technology

Truss is that one kind is hinged at two ends each other by rod member, by propping up of welding, riveting or bolt connection Support beam structure.Its advantage is that rod member is primarily subjected to pulling force or pressure, so as to make full use of the intensity of material, in span relatively Than solid web girder material-saving when big, mitigate deadweight and increase rigidity.

Currently for the installation of the arcuate space truss of super large, after adopting live whole truss structure assembly, it is divided into 2~3 sections more Truss, each point cut truss tread flaking, remove just, lifting the construction method welded again is installed.Its weak point is:Each point is cut truss installa-tion It is both needed to position respectively, fix, correct.Point cut truss and point cut between truss in overhead welding, welding capacity is big and welding quality not Easily ensure.Long construction period, affects project progress.Security risk is big.

Content of the invention

It is an object of the invention to provide a kind of arcuate space truss lifts construction method of installation with three machines, this installation Method is simply easily realized, and installation effectiveness is high, and science is convenient, save cost of labor, significantly reduce lifting cost uses.By will be whole Individual arcuate space truss tread flaking, remove just, lifting, reduce truss divide cut docking, correction, thus avoiding overhead welding, improve welding Quality, shortens the truss installa-tion duration and saves truss lifting cost use.

In order to solve above-mentioned technical problem, adopt the following technical scheme that:

A kind of arcuate space truss lifts construction method of installation with three machines, and this construction method comprises the following steps:

(1) emulation determines the center of gravity of arcuate space truss;

(2) three suspension centres and three loop wheel machines are set:First the center of gravity according to arcuate space truss and contour structure size are arranged Three suspension centres, arrange the first suspension centre at the middle part of arcuate space truss, arrange the second suspension centre in the suspension column of arcuate space truss, The end of arcuate space truss arranges the 3rd suspension centre, and installs hanger on three suspension centres;Hang then according to three setting Point is respectively provided with three loop wheel machines, arranges large-scale crane, arrange medium-sized loop wheel machine, hang the 3rd on the second suspension centre on the first suspension centre Small-sized crane is arranged on point;

(3) carry out tread flaking work using three loop wheel machines;

(4) carry out removing just working after the completion for the treatment of tread flaking work:First step large-scale crane lifts arcuate as main lifting is slow Space truss, medium-sized loop wheel machine hangs the suspension column of arcuate space truss, keeps the suspension column of arcuate space truss to depart from the state of ground, little The suspension hook of type loop wheel machine is lifted with arcuate space truss, and auxiliary arcuate space truss stands up, and treats that the end of arcuate space truss is complete After departing from ground, remove the suspension hook of small crane;Second step keeps the suspension hook of medium-sized loop wheel machine motionless, makes arcuate space truss overall It is in the slow rotation of vertical direction, complete removing of arcuate space truss and just work;

(5) arcuate space truss is lifted on platform;

(6) arcuate space truss is fixed on platform:First with bearing pin, the suspension column of arcuate space truss is fixed on platform On, and the end of arcuate space truss is supported in temporary support columns, adjustment arcuate space truss state is to designing shape afterwards State, draws and sets cable rope and be fixed;Then at the middle part of arcuate space truss, strut is installed with medium-sized loop wheel machine;Then treat that strut is pacified Fill in place after, the two ends bearing pin in strut and temporary support columns is fixed respectively;Finally remove the suspension hook of large-scale crane, move Walk three loop wheel machines, complete the installment work of whole arcuate space truss.

Further, in step (1), determine that the method for the center of gravity of arcuate space truss is first to set up arcuate space truss Spatial entities model, further according to arcuate space truss contour structure size determine respectively arcuate space truss be in horizontal, turn over Body, remove and be just fixed on position of centre of gravity on platform with lifting.Because arcuate space truss position of centre of gravity can be with three loop wheel machines Lifting can constantly change, by analogue simulation determine arcuate space truss be in horizontal, stand up, remove and be just fixed on lifting The change of the position of centre of gravity on platform, thus be advantageously more quickly and easily lifted into truss in staff specify Position.

Further, in step (2), the concrete grammar of setting the first suspension centre, the second suspension centre and the 3rd suspension centre is first step root It is in change that is horizontal, standing up, just remove and be fixed on the position of centre of gravity on platform according to arcuate space truss and determine that suitable arcuate is empty Between truss lifting lifting focus point;Second step at the middle part of arcuate space truss, lifts the position setting the of more than focus point One suspension centre;3rd step according to the first suspension centre and lifting focus point determined by locus, arcuate space truss suspension column and End, lifting focus point position below is respectively provided with the second suspension centre and the 3rd suspension centre.Due to being applied using the installation that three machines lift Work method, will determine three different suspension centres.The position of centre of gravity change determination one first passing through analysis arcuate space truss is hung Dress focus point, by lifting the determination of focus point, a high position for the position setting more than the lifting focus point by truss hoisting is hung Point, is the first suspension centre;Pass through, according to the first suspension centre and lifting focus point, to divide in truss lifting focus point position below simultaneously Not She Zhi two low level suspension centres, be the second suspension centre and the 3rd suspension centre, the first suspension centre, the second suspension centre and the 3rd suspension centre are formed Plane pass through lift focus point, that is, the first suspension centre, the second suspension centre, the 3rd suspension centre and lifting 4 points of focus point in the same plane, The three suspension centre stress so being formed are clear and definite, lifting is stablized thus improving the security reliability of lifting.

Further, in step (2), the main hoisting structure that formed with the first suspension centre, at the middle part of arcuate space truss Four movable hangers are installed;The auxiliary hoisting structure being formed with the second suspension centre and the 3rd suspension centre, in the suspension column of arcuate space truss It is respectively mounted two fixing hangers with end.Large-scale crane lifting arcuate space truss adopts four hangers, and 4 points of bindings lift, It is installed on the outside of truss structure, that is, four hangers are arranged at, at the node that truss web is with chord member, lifting stress Point is placed on chord member, the position of hanger with the shape of truss, weight, the difference of center of gravity and change.Second suspension centre and the 3rd suspension centre The auxiliary hoisting structure being formed, is respectively mounted two fixing hangers, assists main hoisting structure, jointly completes the peace of whole truss Dress.

Further, in step (2), the concrete grammar of three loop wheel machines of setting is on four movable hangers of the first suspension centre Connect four steel wire ropes, and four rope coils are held together the suspension hook that the other end of steel wire rope is connected to large-scale crane On;Method according to above-mentioned setting large-scale crane connects two on two fixing hangers of the second suspension centre and the 3rd suspension centre respectively Steel wire rope, and two rope coils are held together the other end of steel wire rope is connected to medium-sized loop wheel machine and small-sized crane On hanger.

Further, in step (3), the concrete operations of tread flaking are to start three loop wheel machines simultaneously, and large-scale crane is hung as master Dress, medium-sized loop wheel machine and small-sized crane, as auxiliary lifting, make the suspension column of arcuate space truss and end smoothly depart from ground;Then tear open Except the assembled moulding bed of arcuate space truss, arcuate space truss is lifted to positive status to be removed, and keep arcuate space truss to put down Lie.During tread flaking, three loop wheel machines work simultaneously, are used as main lifting by large-scale crane, and overall pulling truss rises, medium-sized Loop wheel machine and small-sized crane, as auxiliary lifting, make the suspension column of arcuate space truss and end will not collide with ground, Neng Goushun Profit departs from ground, safely enters positive status to be removed.

Further, in step (4), the concrete operations of lifting are the suspension hooks first removing medium-sized loop wheel machine, make large-scale crane Four hangers are among uniform stressed, by the remaining lifting work of large-scale crane complete independently.

Further, in step (6), the method setting cable rope is drawn to be the first both sides at the middle part of arcuate space truss difference Draw and set two cable wind ropes, then draw respectively in the suspension column of arcuate space truss and the both sides of end and set two cable wind ropes, keep bow The lateral stability of type space truss.Set cable rope using drawing, make truss installa-tion structure on platform more stable.

Due to adopting technique scheme, have the advantages that:

The present invention lifts construction method of installation for a kind of arcuate space truss with three machines, and this construction method of installation is simply easily real Existing, installation effectiveness is high, and science is convenient, save cost of labor, significantly reduce lifting cost uses.By by whole arcuate space purlin Frame tread flaking, remove just, lifting, reduce truss divide cut docking, correction, thus avoiding overhead welding, improve welding quality, shorten truss Installation period and saving truss lifting cost are used.Hung using three boards, wherein large-scale crane utilizes four movable hangers, colligation arcuate As the first suspension centre, medium-sized loop wheel machine utilizes two fixing hangers, the suspension column of colligation arcuate space truss, makees at the middle part of space truss For the second suspension centre, small-sized crane, using two fixing hangers, the end of colligation arcuate space truss, as the 3rd suspension centre, makes whole Individual arcuate space truss pass through tread flaking, remove just, lifting etc. step be successfully lifted into specified location.First suspension centre, the second suspension centre The plane being formed with the 3rd suspension centre is passed through to lift focus point, i.e. the first suspension centre, the second suspension centre, the 3rd suspension centre and lifting focus point 4 points in the same plane, and three suspension centre stress of formation are clear and definite, lifting is stablized thus improving the security reliability of lifting.No Need to install it is not required that dividing section truss and dividing between section truss to positioning respectively, fixing and correcting between each point section truss Carry out overhead welding, thus improving installation quality and welding quality, shortening the truss installa-tion duration and saving truss lifting cost use.

Brief description

The invention will be further described below in conjunction with the accompanying drawings:

Fig. 1 is the structural representation of arcuate space truss in the present invention;

Fig. 2 is the structural representation that in the present invention, a kind of arcuate space truss lifts construction method of installation with three machines;

Fig. 3 is structural representation during just removing for the arcuate space truss in the present invention;

Fig. 4 be the present invention in arcuate space truss in hoisting process structural representation;

Fig. 5 is structural representation when arcuate space truss and platform connect in the present invention.

Specific embodiment

As shown in Figures 1 to 5, a kind of arcuate space truss flow process that three machines lift construction method of installation is that emulation determines Three suspension centres of the center of gravity → setting of arcuate space truss and three loop wheel machines → carry out tread flaking work → treat tread flaking using three loop wheel machines Carry out after the completion of work removing just work → arcuate space truss is lifted on platform 11 → is fixed to arcuate space truss flat On platform 11.

(1) emulation determines the center of gravity of arcuate space truss:First set up the spatial entities model of arcuate space truss, further according to The contour structure size of arcuate space truss determine respectively arcuate space truss be in horizontal, stand up, remove and be just fixed on lifting Position of centre of gravity on platform 11.Because arcuate space truss position of centre of gravity can constantly can become with the lifting of three loop wheel machines Change, by analogue simulation determine arcuate space truss be in horizontal, stand up, remove just fixing with lifting center of gravity position on platform 11 The change put, thus be advantageously more quickly and easily lifted into, in staff, the position specified by truss.

(2) three suspension centres and three loop wheel machines are set:The first step according to arcuate space truss be in horizontal, stand up, remove just and The change of fixing position of centre of gravity on platform 11 determines the lifting focus point 14 being suitable for the lifting of arcuate space truss;Second step exists The middle part 7 of arcuate space truss, the position of lifting focus point more than 14 arranges the first suspension centre 4;3rd step is according to the first suspension centre 4 He Locus determined by lifting focus point 14, in suspension column 8 and the end 9 of arcuate space truss, lift focus point below 14 Position is respectively provided with the second suspension centre 5 and the 3rd suspension centre 6;4th step installs four movable hangers at the middle part 7 of arcuate space truss; The auxiliary hoisting structure that 5th step is formed with the second suspension centre 5 and the 3rd suspension centre 6, in suspension column 8 and 9 points of the end of arcuate space truss An Zhuan not two fixing hangers.6th step connects four steel wire ropes on four of the first suspension centre 4 movable hangers, and by four steel Cord bundles and the other end of steel wire rope is connected on the suspension hook of large-scale crane 1;According to above-mentioned setting large-scale crane 1 Method connects two steel wire ropes on two fixing hangers of the second suspension centre 5 and the 3rd suspension centre 6 respectively, and by two rope coils It is held together and the other end of steel wire rope is connected on medium-sized loop wheel machine 2 and the hanger of small-sized crane 3.Due to being lifted using three machines The construction method of installation hung, will determine three different suspension centres.First pass through the position of centre of gravity change of analysis arcuate space truss Determine a lifting focus point 14, by lifting the determination of focus point 14, in the lifting focus point more than 14 by truss hoisting The high-order suspension centre of position setting, is the first suspension centre 4;Pass through, according to the first suspension centre 4 and lifting focus point 14, to hang in truss simultaneously Dress focus point 14 position below is respectively provided with two low level suspension centres, is the second suspension centre 5 and the 3rd suspension centre 6, the first suspension centre 4, The plane that second suspension centre 5 and the 3rd suspension centre 6 are formed is passed through to lift focus point 14, and that is, the first suspension centre 4, the second suspension centre the 5, the 3rd hang With 14 4 points of focus point of lifting in the same plane, the three suspension centre stress so being formed are clear and definite, lifting is stablized thus carrying for point 6 The security reliability of high lifting.Large-scale crane lifting arcuate space truss adopts four hangers, 4 points of binding liftings, is installed on purlin The outside of frame structure, that is, four hangers are arranged at the node that truss web is with chord member, lifting stress point is placed on string On bar, the position of hanger with the shape of truss, weight, the difference of center of gravity and change.Second suspension centre 5 and the 3rd suspension centre 6 are formed Auxiliary hoisting structure, be respectively mounted two fixing hangers, assist main hoisting structure, jointly complete the installation of whole truss.

(3) carry out tread flaking work using three loop wheel machines:Start three loop wheel machines, large-scale crane 1 is as main lifting, medium-sized simultaneously Loop wheel machine 2 and small-sized crane 3, as auxiliary lifting, make the suspension column 8 of arcuate space truss and end 9 smoothly depart from ground;Then remove The assembled moulding bed 10 of arcuate space truss, arcuate space truss is lifted to positive status to be removed, and keeps arcuate space truss to put down Lie.During tread flaking, three loop wheel machines work simultaneously, are used as main lifting by large-scale crane 1, and overall pulling truss rises, in Type loop wheel machine 2 and small-sized crane 3, as auxiliary lifting, make the suspension column 8 of arcuate space truss and end 9 will not collide with ground, Ground can smoothly be departed from, safely enter positive status to be removed.

(4) carry out removing just working after the completion for the treatment of tread flaking work:Large-scale crane 1 lifts arcuate space purlin as main lifting is slow Frame, medium-sized loop wheel machine 2 hangs the suspension column 8 of arcuate space truss, keeps the suspension column 8 of arcuate space truss to depart from the state of ground, small-sized The suspension hook of loop wheel machine 3 is lifted with arcuate space truss, and auxiliary arcuate space truss stands up, and treats that the end 9 of arcuate space truss is complete After departing from ground, remove the suspension hook of small crane;Then keep the suspension hook of medium-sized loop wheel machine 2 motionless, make arcuate space truss overall It is in the slow rotation of vertical direction, complete removing of arcuate space truss and just work.During just removing, large-scale crane 1 is still Lift arcuate space truss as main lifting is slow, small-sized crane 3 auxiliary arcuate space truss stands up, and medium-sized loop wheel machine 2 suspension hook is not Dynamic, cause truss in the slow rotation of vertical direction, primarily serving the purpose of of it makes truss during rotation is just removed Do not contact to earth, be also not required to for truss to hang ground too high, only the lifting of truss bottom need to be left ground about 50mm.

(5) arcuate space truss is lifted on platform 11:3rd step hoisting process:First remove the suspension hook of medium-sized loop wheel machine 2, Four hangers of large-scale crane 1 are made to be among uniform stressed, by the remaining lifting work of large-scale crane 1 complete independently.

(6) arcuate space truss is fixed on platform 11:First with bearing pin, the suspension column 8 of arcuate space truss is fixed on flat On platform 11 bearing, and the end 9 of arcuate space truss is supported in temporary support columns 12, adjusts arcuate space truss shape afterwards State, to design point, is drawn and is set cable rope and be fixed;Then at the middle part 7 of arcuate space truss, strut is installed with medium-sized loop wheel machine 2 13;Then after strut 13 install in place after, the two ends bearing pin in strut 13 and temporary support columns 12 is fixed respectively;Finally Remove the suspension hook of large-scale crane 1, remove three loop wheel machines, complete the installment work of whole arcuate space truss.Draw and set cable rope Method is first to draw respectively in the both sides at the middle part 7 of arcuate space truss to set two cable wind ropes, then in the post of arcuate space truss The both sides of foot 8 and end 9 are drawn respectively and are set two cable wind ropes, keep the lateral stability of arcuate space truss.Set cable rope using drawing, Make truss installa-tion structure on platform 11 more stable.

These are only the specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto.Any with this Based on bright, for solving essentially identical technical problem, realize essentially identical technique effect, done ground simple change, etc. With replacement or modification etc., all it is covered by among protection scope of the present invention.

Claims (5)

1. a kind of arcuate space truss lift construction method of installation with three machines it is characterised in that:Including following installation steps:
(1) emulation determines the center of gravity of arcuate space truss;
(2) three suspension centres and three loop wheel machines are set:First according to arcuate space truss be in horizontal, stand up, just remove and be fixed on flat The change of the position of centre of gravity on platform determines the lifting focus point being suitable for the lifting of arcuate space truss;Then in arcuate space truss Middle part, position more than lifting focus point arranges the first suspension centre;And according to determined by above-mentioned first suspension centre and lifting focus point Locus, in suspension column and the end of arcuate space truss, lift focus point position below and are respectively provided with the second suspension centre and the Three suspension centres, are installed four movable hangers at the middle part of arcuate space truss, form the main hoisting structure being formed with the first suspension centre, It is respectively mounted two fixing hangers in the suspension column of arcuate space truss and end, formed and formed with the second suspension centre and the 3rd suspension centre Auxiliary hoisting structure;Then connect four steel wire ropes on four movable hangers of the first suspension centre, and four steel wire ropes are bundled The other end of steel wire rope is connected on the suspension hook of large-scale crane together;Finally exist according to the method for above-mentioned setting large-scale crane Connect two steel wire ropes respectively on two fixing hangers of the second suspension centre and the 3rd suspension centre, and two rope coils are held together The other end of steel wire rope is connected on medium-sized loop wheel machine and the hanger of small-sized crane;
(3) carry out tread flaking work using three loop wheel machines;
(4) carry out removing just working after the completion for the treatment of tread flaking work:First step large-scale crane lifts arcuate space as main lifting is slow Truss, medium-sized loop wheel machine hangs the suspension column of arcuate space truss, keeps the suspension column of arcuate space truss to depart from the state of ground, small hoist The suspension hook of machine is lifted with arcuate space truss, and auxiliary arcuate space truss stands up, and treats that the end of arcuate space truss completely disengages from Behind ground, remove the suspension hook of small crane;Second step keep medium-sized loop wheel machine suspension hook motionless, make arcuate space truss generally in In the slow rotation of vertical direction, complete removing of arcuate space truss and just work;
(5) arcuate space truss is lifted on platform;
(6) arcuate space truss is fixed on platform:First with bearing pin, the suspension column of arcuate space truss is fixed on platform, and The end of arcuate space truss is supported in temporary support columns, adjustment arcuate space truss state, to design point, is drawn afterwards If cable rope is fixed;Then at the middle part of arcuate space truss, strut is installed with medium-sized loop wheel machine;Then treat that strut is just installed Behind position, the two ends bearing pin in strut and temporary support columns is fixed respectively;Finally remove the suspension hook of large-scale crane, remove three Platform loop wheel machine, completes the installment work of whole arcuate space truss.
2. according to claim 1 a kind of arcuate space truss lift construction method of installation with three machines it is characterised in that:Institute State in step (1), determine that the method for the center of gravity of arcuate space truss is first to set up the spatial entities model of arcuate space truss, then Contour structure size according to arcuate space truss determine respectively arcuate space truss be in horizontal, stand up, remove just solid with lifting It is scheduled on the position of centre of gravity on platform.
3. according to claim 1 a kind of arcuate space truss lift construction method of installation with three machines it is characterised in that:Institute State in step (3), the concrete operations of tread flaking are three loop wheel machines of startup simultaneously, large-scale crane as main lifting, medium-sized loop wheel machine and little Type loop wheel machine, as auxiliary lifting, makes the suspension column of arcuate space truss and end smoothly depart from ground;Then remove arcuate space truss Assembled moulding bed, arcuate space truss is lifted to positive status to be removed, and keeps arcuate space truss to lie low.
4. according to claim 1 a kind of arcuate space truss lift construction method of installation with three machines it is characterised in that:Institute State in step (5), the concrete operations of lifting are the suspension hooks first removing medium-sized loop wheel machine, so that four hangers of large-scale crane is in all Among even stress, by the remaining lifting work of large-scale crane complete independently.
5. according to claim 1 a kind of arcuate space truss lift construction method of installation with three machines it is characterised in that:Institute State in step (6), draw the method setting cable rope to be first to draw respectively in the both sides at the middle part of arcuate space truss to set two cable wind ropes, Then draw respectively in the suspension column of arcuate space truss and the both sides of end and set two cable wind ropes, keep the lateral of arcuate space truss Stable.
CN201510140899.1A 2015-03-27 2015-03-27 A kind of arcuate space truss lifts construction method of installation with three machines CN104746883B (en)

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CN105401691B (en) * 2015-11-23 2018-04-03 中建钢构有限公司 A kind of fusiformis space truss supporting apparatus and its assembling method
CN105971291B (en) * 2016-05-12 2018-03-06 中国华冶科工集团有限公司 A kind of hanging method of L-shaped space truss
CN106202799A (en) * 2016-07-22 2016-12-07 惠生(南通)重工有限公司 A kind of multipoint hoisting computational methods
CN106869319A (en) * 2017-01-22 2017-06-20 中国十七冶集团有限公司 Large span steel truss installation method
CN109353448B (en) * 2018-10-29 2020-04-07 上海外高桥造船有限公司 Ship subsection tire-removing method

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CN101323418B (en) * 2008-07-25 2010-06-09 北京城建集团有限责任公司 Huge deformed steel member single machine turnover hoisting method
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