CN105712218B - The construction method of arm is changed in heavy flat arm tower crane high-altitude - Google Patents

The construction method of arm is changed in heavy flat arm tower crane high-altitude Download PDF

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Publication number
CN105712218B
CN105712218B CN201610199951.5A CN201610199951A CN105712218B CN 105712218 B CN105712218 B CN 105712218B CN 201610199951 A CN201610199951 A CN 201610199951A CN 105712218 B CN105712218 B CN 105712218B
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CN
China
Prior art keywords
arm
crane
standard knot
tower crane
truck
Prior art date
Application number
CN201610199951.5A
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Chinese (zh)
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CN105712218A (en
Inventor
唐际宇
林忠和
陈勇辉
唐阁威
梁月利
陆仕颖
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中国建筑第八工程局有限公司
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Priority to CN201610199951.5A priority Critical patent/CN105712218B/en
Publication of CN105712218A publication Critical patent/CN105712218A/en
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Publication of CN105712218B publication Critical patent/CN105712218B/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details

Abstract

The present invention relates to the construction method that arm is changed in a kind of heavy flat arm tower crane high-altitude, including:In setting truck crane on the construction road of foundation ditch periphery;The crane arm of tower crane is gone to the top of the truck crane;Remove the suspension hook of the tower crane;The standard knot of dismounting and arm end segment are hung and deliver to ground using the truck crane;The tower crane is rotated into 180 degree, to cause that the weighted regions of the tower crane are located at the top of the truck crane;The counterweight of the weighted regions is hung using the truck crane delivers to ground;The tower crane is rotated into 180 degree, the standard knot of replacement and arm end segment is hung using the truck crane is delivered to crane arm, and be installed on the end of the crane arm;The tower crane is rotated into 180 degree, the additional weight hoisting of the standard knot replaced to the weighted regions of the tower crane will be adapted to using the truck crane.The arm that changes for carrying out tower crane crane arm using truck crane is operated, and the time for changing arm is short, be can be used after the completion of debugging, influences small to the construction period.

Description

The construction method of arm is changed in heavy flat arm tower crane high-altitude

Technical field

The present invention relates to the realm of building construction, the construction method that arm is changed in a kind of heavy flat arm tower crane high-altitude is refered in particular to.

Background technology

At the construction field (site), the operation that tower crane carries out the lifting of building materials is installed, the selection of tower crane model is lifting scope and hang Determine again, when the crane arm of tower crane needs to change arm or maintenance, it is necessary to will be transformed under crane arm integral demounting, this Sample causes high cost, time-consuming, has large effect to the construction period.

The content of the invention

Defect it is an object of the invention to overcome prior art, there is provided the construction of arm is changed in a kind of heavy flat arm tower crane high-altitude Method, solution tower crane is carried out changing in the prior art exist when arm or maintenance high cost, time-consuming and influence construction work The problem of phase.

Realizing the technical scheme of above-mentioned purpose is:

The invention provides the construction method that arm is changed in a kind of heavy flat arm tower crane high-altitude, including:

In setting truck crane on the construction road of foundation ditch periphery;

The crane arm of tower crane is gone to the top of the truck crane;

Remove the suspension hook of the tower crane;

Remove the standard knot for needing to remove on the crane arm and standard knot and arm end segment that will be removed using the truck crane Hang and deliver to ground;

The tower crane is rotated into 180 degree, to cause that the weighted regions of the tower crane are located at the top of the truck crane;

The counterweight of the weighted regions is hung using the truck crane delivers to ground;

The tower crane is rotated into 180 degree, the standard knot of replacement and arm end segment is hung and deliver to crane arm using the truck crane, And it is installed on the end of the crane arm;

The tower crane is rotated into 180 degree, the additional weight hoisting of the standard knot replaced will be adapted to described using the truck crane The weighted regions of tower crane;And

Pass around hoisting line and suspension hook is installed.

The arm that changes for carrying out tower crane crane arm using truck crane is operated, and the time for changing arm is short, be can be used after the completion of debugging, right Construction period influence is small.Install convenient is simple, safe and reliable, it is not necessary to all to disassemble crane arm and transformed, and into This is low.Solve tower crane is carried out changing in the prior art exist when arm or maintenance high cost, time-consuming and influence construction The problem of duration.

Heavy flat arm tower crane high-altitude of the invention change the construction method of arm further improvement is that, utilize the automobile Hang and hang before delivering to ground the standard knot of dismounting and arm end segment, also include:Amplitude variation trolley on the tower crane is moved to and is torn open The root of the crane arm after except standard knot.

Heavy flat arm tower crane high-altitude of the invention change the construction method of arm further improvement is that, remove the crane arm On the standard knot that need to remove and the standard knot of dismounting and arm end segment hung using the truck crane deliver to ground, including:

The large arm of the truck crane is reached the standard knot overhead for needing to remove on the tower crane;

The center of the standard knot that the lifting rope of the truck crane is caught on the arm end segment and need to removed;

Using truck crane lifting until the lifting rope is exceptionally straight, institute on the standard knot for needing to remove on the crane arm is removed The bearing pin of connection;

The standard knot of dismounting and arm end segment are hung the designated area for delivering to ground using the truck crane.

Heavy flat arm tower crane high-altitude of the invention change the construction method of arm further improvement is that, remove the crane arm On connected on the standard knot that need to remove bearing pin when, first bearing pin is lain on the main chord of the crane arm by rope, so Bearing pin is destroyed afterwards remove the standard knot that the need connected on the crane arm are removed.

Heavy flat arm tower crane high-altitude of the invention change the construction method of arm further improvement is that, using the truck crane The standard knot of dismounting and arm end segment are hung after delivering to ground, also included:

Connection is released between the standard knot and arm end segment that will remove;

The standard knot replaced is provided, by assembled connection between the standard knot replaced and the arm end segment.

Heavy flat arm tower crane high-altitude of the invention change the construction method of arm further improvement is that, using the truck crane The counterweight of the weighted regions is hung and delivers to ground, including:

The tower crane is set to remain static;

The lifting rope of the truck crane is caught on the hook of counterweight;

The lifting rope of truck crane described in lifting is until the counterweight disengaging tower crane, counterweight then to be hung the specified area for delivering to ground Domain.

Heavy flat arm tower crane high-altitude of the invention change the construction method of arm further improvement is that, using the truck crane The standard knot of replacement and arm end segment are hung and delivers to crane arm, and be installed on the end of the crane arm, including:

The standard knot of replacement and arm end segment are hung the top of the crane arm end for delivering to the tower crane using the truck crane;

The standard knot and arm end segment replaced are transferred, until the top twisted point of the standard knot replaced encounters tower crane crane arm end Top twisted point, regulation overlap after be fixedly connected using bearing pin;

Continue to transfer standard knot and the arm end segment replaced, make the bottom twisted point of the standard knot of replacement and tower crane crane arm end Bottom twisted point overlap, be fixedly connected using bearing pin.

Brief description of the drawings

Fig. 1 is that the heavy flat arm tower crane high-altitude of the present invention is changed in the construction method of arm and hangs the standard knot and arm end segment that send and need to remove Structural representation.

Fig. 2 is that the structural representation that weight of providing and delivering is hung in the construction method of arm is changed in the heavy flat arm tower crane high-altitude of the present invention.

Specific embodiment

The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.

The invention provides the construction method that arm is changed in a kind of heavy flat arm tower crane high-altitude, it is adaptable to which all flat arm tower cranes are carried out The constructions such as arm, maintenance and installation are changed in high-altitude.With low cost, time is short, install convenient is simple, the characteristics of safe and reliable.Under Face illustrates with reference to accompanying drawing to the construction method that arm is changed in the heavy flat arm tower crane high-altitude of the present invention.

Refering to Fig. 1, it is shown that the present invention heavy flat arm tower crane high-altitude is changed in the construction method of arm and hangs the standard sent and need to remove The structural representation of section and arm end segment.With reference to Fig. 1, the construction method that arm is changed in the heavy flat arm tower crane high-altitude of the present invention is carried out Explanation.

As shown in figure 1, the construction method that arm is changed in the heavy flat arm tower crane high-altitude of the present invention is used for as tower crane realizes that arm is changed in high-altitude Operation, tower crane 21 is arranged at the hole bottom 111 in foundation ditch 11, the crane arm 211 of tower crane 21 spliced by multiple standard knots 2111 and Into the linking arm end segment 2112 at the standard knot 2111 of the end of crane arm 211.Carry out changing arm using construction method of the invention During operation, arm end segment 2112 and the standard knot being connected with arm end segment 2112 are changed, can change shorter as needed Standard knot, it is also possible to change standard knot more long.The present invention changes in heavy flat arm tower crane high-altitude the construction method of arm, including:

The Study on selection analysis of tower crane counterweight, brachium and truck crane, according to tower crane model, setting height(from bottom), cargo boom The parameters such as length, lift heavy are selected.Illustrated with an example, tower crane model S1200M64, setting height(from bottom) 64m, brachium 70m, maximum lift heavy is 64T, and arm end maximum lift heavy is 17.3T, belongs to heavy flat arm tower crane.It is by crane arm end to change arm operation The standard knot that the 10m at place is long changes 5m standard knots long into, realizes that the crane arm of tower crane is changed into 65m from 70m, 10m crane arms long Standard knot weight 2.755T, the standard knot weight 1.4T of 5m crane arms long.With reference to the requirement of site operation, determine that tower crane needs to change arm Length, change and change the weight of standard knot, the weight of arm end segment and change counterweight before and after arm corresponding to tower crane, it is brachium, flat Weighing apparatus arm, counterweight relation are shown in Table 1-1.Weight and tower crane according to hung standard knot height from the ground, it is determined that it is used to change arm construction Truck crane with regard to site and model, it is ensured that its lifting performance meet lift heavy requirement.

Table 1-1 tower crane counterweight parameter lists

S1200M64 tower cranes change that the counterweight of lifting is needed during arm is 17.29T, maximum standard knot and arm end segment gross weight 6.2T, is 260t truck cranes from auxiliary lifting crane.Now tower crane large arm 64m high, foundation depth 17m, truck crane institute erect-position It is highly 47m, truck crane centre-to-centre spacing tower crane centre of gyration 44m to be set to foundation ditch top, i.e. automobile and hang large arm, away from balance position 22m, Now 260t truck cranes rod 62.8m, lift heavy 18.8t, meet the requirement of lifting counterweight 17.49t.Remove 10m crane arms and peace During dress 5m crane arms, away from arm center 28m, now truck crane rod 62.8m, lift heavy 14.5t, meet crane arm 6.2t to truck crane Lift heavy requirement.

Tower crane, truck crane are in place, and truck crane 22 is set on the construction road 12 of the periphery of foundation ditch 11.Tower crane is arranged on foundation ditch 11 hole bottom 111, foundation depth is 17m, and change arm is carried out on the construction road 12 on foundation ditch.Truck crane reaches specified after marching into the arena Position, opens lifting supporting leg.Big in view of hoisting height and lifting weight is big, truck crane accordingly increases counterweight when lifting, it is ensured that The balance and stability of truck crane.The crane arm 211 of tower crane 11 goes to the top of truck crane 22 so that crane arm 211 is in vapour The positive overhead that car hangs 22 stops, it is desirable to truck crane lifting scope under except operating personnel, forbid other unrelated persons stop or Person looks around, and warning line has been drawn at scene.

Remove tower crane wherein suspension hook and adjust not care about one's appearance dolly, the suspension hook of tower crane 21 is removed, by the amplitude variation trolley on tower crane 21 213 are moved to root of the crane arm 211 after standard knot is removed.In order to mitigate the weight that truck crane removes standard knot and arm end segment Amount, is about to lifting hook pulley group and transfers and remove certainly after tower crane is in place.Consider that first remove crane arm standard knot removes again simultaneously Counterweight, in order to keep overall balance, the regulation of tower crane amplitude variation trolley is parked in the root of crane arm.

The standard knot for needing to remove on crane arm 211 is removed, and the standard knot and arm that will be removed using truck crane truck crane 22 End segment 2112 is hung and delivers to ground, including:The large arm of truck crane 22 is reached the standard knot overhead for needing to remove on tower crane 21;By vapour The lifting rope 221 that car hangs 22 catches on arm end segment 2112 and the center of standard knot that need to be removed;Using truck crane 22 lifting until Lifting rope 221 is exceptionally straight, and the bearing pin connected on the standard knot 2111 removed is needed on the crane arm 211 for removing tower crane 21, is removing tower During the bearing pin connected between the crane arm for hanging and the standard knot that need to be removed, bearing pin is first lain in the main chord of crane arm by rope On, then bearing pin is destroyed to remove the standard knot that the need connected on the tower crane crane arm are removed;To be torn open using truck crane 22 The standard knot and arm end segment for removing hang the designated area for delivering to ground.Specific construction step is:After the completion of truck crane preparation, Large arm to standard section of tower crane overhead is stretched out, while two operating personnel go to arm end along crane arm, by truck crane lifting rope difference The center (two point form lifting) of arm end segment and standard knot is caught on, and slowly lifts crampon until steel wire rope is just tensed When stop, destroying bearing pin, afterwards truck crane by arm end segment and standard knot be placed individually into ground specify assembly region.Cut tight during arm There are relaxation cases in weighing arm pull bar unable to stand, and tower crane large arm wants remains stationary state.Operating personnel before the bearing pin for destroying previous section, Safety belt is tied up on the main chord of later section large arm.Meanwhile, in order to prevent bearing pin falling from high altitude before bearing pin is beaten, pulling out Cotter-pin hold is connected with the main chord of large arm with nylon rope first after split pin.

The counterweight for needing to change on tower crane is removed using truck crane, tower crane 21 is rotated into 180 degree, with reference to shown in Fig. 2, rotation The weighted regions 212 of tower crane 21 are located at the top of truck crane 22 afterwards, using truck crane 22 by the counterweight 2121 at weighted regions 212 Hang and deliver to ground.The counterweight of weighted regions is hung using truck crane is delivered to ground and is included:Tower crane is set to remain static;By automobile The lifting rope for hanging catches on the hook of counterweight;The lifting rope that truck crane hangs is until the counterweight disengaging tower crane, counterweight is then hung deliver to The designated area on ground.Specifically construction procedure is:After crane arm has been removed, tower crane slowly carries out 180 degree rotation, and tower crane is another The counterweight of one end is transferred to the overhead of truck crane, then remains stationary state.An operating personnel go to along crane arm and match somebody with somebody simultaneously Locate again, truck crane lifting rope is caught on the hook of counterweight, and slow crampon respectively until the bottom of counterweight completely disengages from tower crane. Counterweight is placed into ground designated area by truck crane afterwards.

The standard knot and arm end segment that need to be changed are arranged on using truck crane the end of crane arm, tower crane 21 is rotated 180 Degree, the standard knot of replacement and arm end segment 2112 are hung and deliver to the end of crane arm 211, and be installed on crane arm 211 using truck crane End.Also include the standard knot that need to be removed and arm end segment is hung after delivering to ground using truck crane:The mark that need to will be removed Connection is released between quasi- section and arm end segment;The standard knot replaced is provided, will be assembled between the standard knot replaced and the arm end segment Connection.To need the standard knot and arm end segment 2112 of replacement assembled good on ground, then be lifted together using truck crane.Using vapour Car hangs the top that the standard knot of replacement and arm end segment are hung the crane arm end for delivering to tower crane;Transfer the standard knot and arm end replaced Section, until the top twisted point of the standard knot replaced encounters the top twisted point of tower crane crane arm end, regulation utilizes bearing pin after overlapping It is fixedly connected;Continue to transfer standard knot and the arm end segment replaced, make the bottom twisted point of the standard knot of replacement and tower crane crane arm end The bottom twisted point in portion overlaps, and is fixedly connected using bearing pin.Specific construction step is:Tower crane slowly carries out 180 degree rotation, by tower crane Crane arm is transferred to the overhead of truck crane, then remains stationary state.Simultaneously ground handling operator using truck crane being changed Standard knot and arm end segment hang assembled region, carry out assembly.Assembled body is hung truck crane the crane arm end of tower crane afterwards Overhead, slowly transfers until the top twisted point of assembled body is just struck against the top twisted point of tower crane crane arm end, two operators By left and right adjusting of exerting oneself, two twisted points just overlap and align member, are fixed with bearing pin, safety pin are penetrated, under then proceeding to slowly Assembled body is put, is corrected by manpower, two twisted points of bottom is also just overlapped, fixed with bearing pin, penetrate safety pin.

Corresponding counterweight is installed using truck crane, tower crane 21 is rotated into 180 degree, the mark replaced will be adapted to using truck crane 22 Weighted regions 212 of the additional weight hoisting of quasi- section to tower crane 21.Specific construction step is:After crane arm is installed, tower crane slowly enters Row 180 degree is rotated, and the counterweight of the tower crane other end is transferred to the overhead of truck crane, then remains stationary state.Simultaneously on ground Truck crane lifting rope is caught on the counterweight to be changed by operating personnel, and counterweight is hung overhead at the counterweight of tower crane by truck crane afterwards, Slowly transfer until counterweight bottom is just struck against tower crane, two operating personnel left-right and front-back and rotate regulation and match somebody with somebody by exerting oneself Weight, the mouth for making counterweight bottom and tower crane put counterweight just overlaps, and finally slowly transfers lifting rope until counterweight safety is in place.

Pass around hoisting line and suspension hook is installed.Change after the completion of arm, operating personnel pass around hoist rope, and install suspension hook.

Come into operation after debugging is qualified, treat it is all change after the completion of arm work, in order to understand tower crane change after arm behavior pattern with And whether indices meet the requirements, it is necessary to tower crane is debugged, debugging is carried out in four steps:Zero load inspection, load are checked, surpassed Carry 25% static check, 10% dynamic check of overload.After the examination of four steps is qualified, tower crane can come into operation.

The present invention changes in heavy flat arm tower crane high-altitude having the beneficial effect that for the construction method of arm:

Low cost, disposable input only has the machine-team of truck crane to take, operative is taken and the freight charges of counterweight and standard knot;

Time is short, be can be used after the completion of debugging, influences small to the duration;

Install convenient is simple, safe and reliable, it is not necessary to which that tower crane large arm is all disassembled into transformation.

The present invention is described in detail above in association with accompanying drawing embodiment, those skilled in the art can be according to upper State it is bright the present invention is made many variations example.Thus, some of embodiment details should not constitute limitation of the invention, this The scope that invention will be defined using appended claims is used as protection scope of the present invention.

Claims (7)

1. the construction method of arm is changed in a kind of heavy flat arm tower crane high-altitude, is comprised the following steps:In on the construction road of foundation ditch periphery Truck crane is set;The crane arm that the tower crane of bottom of foundation ditch will be installed on goes to the top of the truck crane;Remove the tower crane Suspension hook;Characterized in that, also comprising the following steps:
Remove needed on the crane arm remove standard knot and the standard knot of dismounting and arm end segment are hung and given using the truck crane To ground;
The tower crane is rotated into 180 degree, to cause that the weighted regions of the tower crane are located at the top of the truck crane;
The counterweight of the weighted regions is hung using the truck crane delivers to ground;
The tower crane is rotated into 180 degree, the standard knot of replacement and arm end segment is hung using the truck crane is delivered to crane arm, and pacified End loaded on the crane arm;
The tower crane is rotated into 180 degree, will be with the additional weight hoisting that be adapted to of standard knot replaced to the tower using the truck crane The weighted regions hung;And
Pass around hoisting line and suspension hook is installed.
2. the construction method of arm is changed in heavy flat arm tower crane high-altitude as claimed in claim 1, it is characterised in that utilizing the vapour Car hangs and hangs before delivering to ground the standard knot of dismounting and arm end segment, also includes:Amplitude variation trolley on the tower crane is moved to Remove the root of the crane arm after standard knot.
3. the construction method of arm is changed in heavy flat arm tower crane high-altitude as claimed in claim 1 or 2, it is characterised in that remove described Need the standard knot of dismounting on crane arm and hang the standard knot of dismounting and arm end segment using the truck crane to deliver to ground, including:
The large arm of the truck crane is reached the standard knot overhead for needing to remove on the tower crane;
The center of the standard knot that the lifting rope of the truck crane is caught on the arm end segment and need to removed;
Using truck crane lifting until the lifting rope is exceptionally straight, remove and connected on the standard knot for needing to remove on the crane arm Bearing pin;
The standard knot of dismounting and arm end segment are hung the designated area for delivering to ground using the truck crane.
4. the construction method of arm is changed in heavy flat arm tower crane high-altitude as claimed in claim 3, it is characterised in that remove the lifting When the bearing pin connected on the standard knot removed is needed on arm, first bearing pin is lain on the main chord of the crane arm by rope, Then bearing pin is destroyed to remove the standard knot that the need connected on the crane arm are removed.
5. the construction method of arm is changed in heavy flat arm tower crane high-altitude as claimed in claim 1, it is characterised in that utilize the automobile Hanging after hang the standard knot of dismounting and arm end segment and delivering to ground, also include:
Connection is released between the standard knot and arm end segment that will remove;
The standard knot replaced is provided, by assembled connection between the standard knot replaced and the arm end segment.
6. the construction method of arm is changed in heavy flat arm tower crane high-altitude as claimed in claim 1, it is characterised in that utilize the automobile Hang to hang the counterweight of the weighted regions and deliver to ground, including:
The tower crane is set to remain static;
The lifting rope of the truck crane is caught on the hook of counterweight;
The lifting rope of truck crane described in lifting is until the counterweight disengaging tower crane, counterweight then to be hung the designated area for delivering to ground.
7. the construction method of arm is changed in heavy flat arm tower crane high-altitude as claimed in claim 1, it is characterised in that utilize the automobile Hang to hang the standard knot of replacement and arm end segment and deliver to crane arm, and be installed on the end of the crane arm, including:
The standard knot of replacement and arm end segment are hung the top of the crane arm end for delivering to the tower crane using the truck crane;
The standard knot and arm end segment replaced are transferred, until the top twisted point of the standard knot replaced encounters the upper of tower crane crane arm end Portion's twisted point, regulation is fixedly connected after overlapping using bearing pin;
Continue to transfer standard knot and the arm end segment replaced, under making the bottom twisted point of the standard knot of replacement and tower crane crane arm end Portion's twisted point overlaps, and is fixedly connected using bearing pin.
CN201610199951.5A 2016-03-31 2016-03-31 The construction method of arm is changed in heavy flat arm tower crane high-altitude CN105712218B (en)

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CN201610199951.5A CN105712218B (en) 2016-03-31 2016-03-31 The construction method of arm is changed in heavy flat arm tower crane high-altitude

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Application Number Priority Date Filing Date Title
CN201610199951.5A CN105712218B (en) 2016-03-31 2016-03-31 The construction method of arm is changed in heavy flat arm tower crane high-altitude

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CN105712218B true CN105712218B (en) 2017-06-13

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2587191B2 (en) * 1993-07-26 1997-03-05 鹿島建設株式会社 Wire charging device
FR2816303B1 (en) * 2000-11-07 2003-02-07 Jean Bard Tower crane
CN101337642A (en) * 2007-07-02 2009-01-07 湖南省第六工程有限公司 Aerial disassembly process for big arm of tower crane with horizontal arm and device thereof
CN103523683B (en) * 2013-10-16 2015-07-15 温州建设集团有限公司 Construction method for dismantling tower crane by use of small hoisting equipment
CN103754775B (en) * 2014-01-17 2015-10-14 中联重科股份有限公司 A kind of movable arm tower crane tear arm method and auxiliary dismounting device open
CN203820334U (en) * 2014-05-04 2014-09-10 中国建筑科学研究院建筑机械化研究分院 Device for descending and disassembling arm through turning back of tower cane in air
CN104386598A (en) * 2014-09-16 2015-03-04 陕西启源科技发展有限责任公司 Dismantling method for tower crane jib

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