CN101734560B - High-altitude dismantling method of inside-climbing tower crane for towering structure construction - Google Patents

High-altitude dismantling method of inside-climbing tower crane for towering structure construction Download PDF

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Publication number
CN101734560B
CN101734560B CN2009103117548A CN200910311754A CN101734560B CN 101734560 B CN101734560 B CN 101734560B CN 2009103117548 A CN2009103117548 A CN 2009103117548A CN 200910311754 A CN200910311754 A CN 200910311754A CN 101734560 B CN101734560 B CN 101734560B
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arm
crane
equilibrium
crane arm
tower
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CN101734560A (en
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陈跃熙
王其贵
谢守德
鄢仲军
罗呈刚
丁云波
邱祥德
陈林
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Sichuan 13th Construction Co., Ltd.
China Huashi Enterprises Co Ltd
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SICHUAN 13TH CONSTRUCTION CO Ltd
China Huashi Enterprises Co Ltd
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Abstract

The invention discloses a high-altitude dismantling method of inside-climbing tower crane for towering structure construction, which can effectively lower the dismantling cost of an inside-climbing tower crane and lower dismantling operation risk. The high-altitude dismantling method of inside-climbing tower crane for towering structure construction firstly dismantles a cargo boom and a balance arm and then dismantles a tower body; the derrick mast mechanism with a strut bar and a hoisting line guide mechanism is arranged on the cargo boom and the balance arm; the derrick mast mechanism and the hoisting line are used to dismantle the cargo boom and the balance arm by sections from outside to inside. The derrick mast mechanism is adopted to operate on the cargo boom and the balance arm to dismantle the cargo boom and the balance arm, and does not need to arrange other auxiliary equipment on a building so as to greatly lower the dismantling cost of the tower crane and improve the removing work efficiency; the last quarter tenon end parts of adjacent two cargo booms and adjacent two balance arms are arranged into circular arc structure, thus improving stability and safety in the dismantling process; the method is especially suitable for being popularized and used in dismantling various inside-climbing tower cranes.

Description

Towering structure construction inside-climbing tower crane high-altitude dismantling worker method
Technical field
The present invention relates to the method for dismounting of tower crane, be specifically related to a kind of towering structure construction inside-climbing tower crane high-altitude dismantling worker method that is positioned at interior of building.
Background technology
At present, in the building engineering construction, being arranged at the fixedly adhesion tower-crane and the inside-climbing tower crane that is arranged at interior of building of outside, is the vertical transportation machinery that building engineering construction generally uses.Inside-climbing tower crane is then safe and reliable because of its performance, convenient being suitable for, and in skyscraper and towering structure (especially at the concrete television mast) construction, more use.
In the towering structure construction, inside-climbing tower crane is arranged at structures inside, and the crane arm of tower crane is usually greater than structures top plan size.
Fixedly the conventional method for dismounting of adhesion tower-crane is that body of the tower crane arm, the equilibrium arm of tower crane are reduced to behind the certain altitude of ground at building external, carries out crane arm, equilibrium arm dismounting with other elevator machinery (using the truck mounted crane usually).Inside-climbing tower crane is located at building, towering structure is inner, and its crane arm, equilibrium arm are stopped by building, structure structure, can not wholely descend, and the crane arm of tower crane, equilibrium arm can only high-altitude dismantlings.Since tower crane crane arm, equilibrium arm are removed operation be in the high-altitude and the scope of operation narrow, even do not have to carry out under the condition of the scope of operation, very high to technology, the safety requirements of removing, be a technical barrier during inside-climbing tower crane is used.
In television mast (concrete television mast) engineering of having built up at present, its inside-climbing tower crane is removed main the employing:
Establish highly special-purpose lattice type steel column of 20~30m and big gin pole in television mast concrete mast tops, the steel column four directions is fixed with cable wind rope.The installation suspension cable is set between concrete mast parts and ground, utilizes steel column, big gin pole and winch to remove the tower crane armed lever, the armed lever after the dismounting utilizes suspension cable to transfer to ground.The body of the tower of tower crane is removed in the television mast tube.
More convenient when the method is removed tower crane, but need to install, remove steel column, big gin pole and suspension cable in television mast concrete mast tops, work capacity is big, and the input expense is higher, and is long in time limit, and construction safety risk is big.
Summary of the invention
The technical matters that the present invention solved provides a kind of inside-climbing tower crane that reduces and removes cost and reduce the towering structure construction inside-climbing tower crane high-altitude dismantling worker method of removing the job safety risk.
The technical solution adopted for the present invention to solve the technical problems is: towering structure construction inside-climbing tower crane high-altitude dismantling worker method; Remove crane arm, equilibrium arm earlier; Remove body of the tower again; The linkage of taking off with strut bar and derrick line guiding mechanism is set on crane arm and equilibrium arm, when utilizing inside-climbing tower crane self lifting structure to remove crane arm and equilibrium arm:
A, will take off linkage and be installed on the crane arm removed inner back and the equilibrium arm, the employing derrick line passes the derrick line guiding mechanism of support bar top, and the front end of derrick line is connected on the outer end crane arm and equilibrium arm to be removed;
Wind up tenon bearing pin and the lower edge tenon bearing pin of b, crane arm joint that the crane arm of removing behind the inner and outer end is to be removed are removed the lower edge tenon bearing pin dismounting of the equilibrium arm joint that equilibrium arm of removing behind the inner and outer end is to be removed;
C, loosen derrick line, crane arm, equilibrium arm that the outer end is to be removed are transferred to ground, pack up derrick line;
D, repeat above-mentioned a to c step, until removing only surplus final section crane arm and the equilibrium arm that links to each other with body of the tower;
E, derrick line is passed the guiding mechanism of the tower crown portion of body of the tower, the front end of derrick line is connected on the final section crane arm and equilibrium arm that links to each other with body of the tower;
F, final section crane arm, equilibrium arm and body of the tower bonded assembly lower edge tenon bearing pin are removed;
G, loosen derrick line, final section crane arm and equilibrium arm are transferred to ground, pack up derrick line.
Further be that in step a, when having pull bar on outer end crane arm to be removed, the equilibrium arm, the auxiliary stay cord of between the top of the crane arm of removing behind the inner, equilibrium arm and body of the tower, helping pull a cart is earlier removed pull bar again.
Further be that the end face of the lower edge tenon of adjacent two joint crane arms, adjacent two joint equilibrium arms and the final section crane arm that links to each other with body of the tower, equilibrium arm is set to arc-shaped structure, then in step b; When removing crane arm; Tighten up derrick line earlier, the tenon bearing pin that winds up of the crane arm joint that the crane arm of removing behind the inner and outer end is to be removed is removed, and loosens derrick line again; Outer end crane arm to be removed is rotated around lower edge tenon bearing pin; When removing equilibrium arm, directly loosen derrick line, outer end equilibrium arm to be removed is rotated around lower edge tenon bearing pin; After outer end crane arm to be removed and equilibrium arm rotate to state of equilibrium, remove crane arm, equilibrium arm and the outer end of removing inner back crane arm to be removed, the lower edge tenon bearing pin of equilibrium arm joint again; Among the step f, loosen derrick line, make final section crane arm, equilibrium arm, after final section crane arm, equilibrium arm rotate to state of equilibrium, remove the lower edge tenon bearing pin of final section crane arm, equilibrium arm again around the rotation of lower edge tenon bearing pin.
Further be; In step b; After outer end crane arm to be removed and equilibrium arm rotate to state of equilibrium,, tighten up jack earlier taking off hanging sleeve jack between linkage and outer end crane arm to be removed, the equilibrium arm; The lower edge tenon bearing pin of the crane arm that the crane arm of removing behind the inner, equilibrium arm and outer end is to be removed, equilibrium arm joint is removed, and then removes jack; In step f; After final section crane arm, equilibrium arm rotated to state of equilibrium, hanging sleeve jack between tower cap and final section crane arm, equilibrium arm tightened up jack; The lower edge tenon bearing pin of final section crane arm, equilibrium arm is removed, and then removed jack.
Further be when removing crane arm and equilibrium arm, to remove crane arm earlier; Remove equilibrium arm again, in step e, when removing the final section crane arm that links to each other with body of the tower; Gin pole mechanism is removed, will take off linkage again and be assembled on the equilibrium arm equilibrium arm is removed.
As a kind of optimized technical scheme, said crane arm, equilibrium arm all have at least three joints, saidly take off that linkage is removable to be arranged on crane arm and the equilibrium arm.
As another kind of optimized technical scheme, said crane arm has at least three joints, and equilibrium arm has two joints, saidly takes off that linkage is removable to be arranged on the crane arm.
Further be; Crane arm is provided with movably lifting amplitude variation trolley; Lifting amplitude variation trolley top is set with upper ear plate, and the bottom of strut bar is fixedly connected on the upper ear plate, in the bottom of lifting amplitude variation trolley the lower ear plate with pin-and-hole is set; Outer end at every joint crane arm is provided with the connecting panel with pin-and-hole, and lower ear plate is connected with connecting panel through pin.
Further be, said strut bar has four, and the top junction of these four strut bars is connected to one, and the bottom is fixedly connected on respectively on four upper ear plates of lifting amplitude variation trolley; The derrick line guide frame that is positioned at supporting bar top is a leading sheave.
The invention has the beneficial effects as follows: through the linkage of taking off that on crane arm and equilibrium arm, is provided with; Capable of using this taken off linkage and worked on crane arm and the equilibrium arm crane arm and equilibrium arm are removed; Need on building, not establish other accessory equipment in addition; Thereby can reduce the dismounting cost of tower crane greatly, and improve the work efficiency of removing greatly; And the lower edge tenon end of adjacent two joint crane arms and adjacent two joint equilibrium arms is set to arc-shaped structure, can improve the stationarity and the safety of demolishing process, is particluarly suitable for removing on the various inside-climbing tower cranes and promotes the use of.
Description of drawings
Fig. 1 has illustrated the dismounting state that respectively saves crane arm for the structural representation of inside-climbing tower crane of the present invention among the figure;
Fig. 2 is a structural representation of taking off linkage;
Fig. 3 is the structural representations of adjacent two joint lower edge tenons when preparing butt joint;
Fig. 4 is the birds-eye view of Fig. 3;
Fig. 5 is the scheme drawing of inside-climbing tower crane of the present invention when removing the first segment crane arm of inner terminal.
Be labeled as among the figure: crane arm 1, equilibrium arm 2, body of the tower 3, lower edge tenon 4, the tenon 5 that winds up, strut bar 6, pull bar 7, auxiliary stay cord 8, derrick line 9, jack 10, tower cap 11, lifting amplitude variation trolley 12, upper ear plate 13, lower ear plate 14, connecting panel 15, leading sheave 16, building 17.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further explanation.
Extremely shown in Figure 5 like Fig. 1; Towering structure construction inside-climbing tower crane high-altitude dismantling worker method of the present invention; Remove crane arm 1, equilibrium arm 2 earlier; Remove body of the tower 3 again, the linkage of taking off with strut bar 6 and derrick line guiding mechanism is set on crane arm 1 and equilibrium arm 2, when utilizing inside-climbing tower crane self lifting structure to remove crane arm 1 with equilibrium arm 2:
A, will take off linkage and be installed on the crane arm 1 removed inner back and the equilibrium arm 2, and adopt derrick line 9 to pass the derrick line guiding mechanism at strut bar 6 tops, the front end of derrick line 9 will be connected on outer end crane arm to be removed 1 and the equilibrium arm 2; Crane arm 1 assembles (but in the ordinary course of things by more piece with equilibrium arm 2; The equilibrium arm 2 of inside-climbing tower crane is only assembled by two joints); The tenon that winds up of adjacent two joint crane arms 1 is pegged graft the back each other through the pin connection; The adjacent two joint crane arms 1 and the lower edge tenon of equilibrium arm 2 are pegged graft each other and afterwards are connected through pin, and tenon does not wind up during equilibrium arm 2 connections.Crane arm 1 links to each other with body of the tower 3 with the inner terminal of equilibrium arm 2.When removing crane arm 1 with equilibrium arm 2, once only remove a joint crane arm 1 and equilibrium arm 2 in the air at height, be transported to ground so that it is transferred from the high-altitude, prevent to interfere with building 17.
Derrick line 9 when removing crane arm 1 adopts the winch that is installed in the tower crane self on the equilibrium arm 2 as power, and the derrick line 9 when removing equilibrium arm 2 adopts surface-based winch as power.When having pull bar 7 on outer end crane arm 1 to be removed, the equilibrium arm 2; Auxiliary stay cord 8 is set between the top of the crane arm of removing behind the inner 1, equilibrium arm 2 and body of the tower 3 earlier; Remove pull bar 7 again; And when dismounting has crane arm 1, the equilibrium arm 2 of auxiliary stay cord 8, should be earlier with derrick line 9 with crane arm or equilibrium arm connect stable after, will assist stay cord 8 to remove again.
Wind up tenon bearing pin and the lower edge tenon bearing pin of b, crane arm 1 joint that crane arm of removing behind the inner 1 and outer end is to be removed are removed, and the lower edge tenon bearing pin of equilibrium arm 2 joints that equilibrium arm of removing behind the inner 2 and outer end is to be removed is removed;
C, loosen derrick line 9, crane arm 1, equilibrium arm 2 that the outer end is to be removed are transferred to ground, pack up derrick line 9; The derrick line of packing up 9 continues on for the crane arm of removing inner back 1, the dismounting of equilibrium arm 2.
D, repeat above-mentioned a to c step, until removing only surplus final section crane arm that links to each other with body of the tower 31 and equilibrium arm 2; Because final section crane arm 1 directly links to each other with body of the tower 3 with equilibrium arm 2, therefore, can't be installed on the body of the tower 3 taking off linkage; At this moment; Need derrick line 9 is put on the tower cap 11 of body of the tower 3 final section crane arm 1 and equilibrium arm 2 are removed, e to g is said like step, and is as shown in Figure 5.
E, derrick line 9 is passed the guiding mechanism at tower cap 11 tops of body of the tower 3, the front end of derrick line 9 is connected on the final section crane arm 1 that links to each other with body of the tower 3 and the equilibrium arm 2;
F, final section crane arm 1, equilibrium arm 2 and body of the tower 3 bonded assembly lower edge tenon bearing pins are removed; Final section crane arm 1, equilibrium arm 2 tenon that all do not wind up only links to each other with body of the tower 3 through the lower edge tenon, therefore, only need the dismounting of lower edge tenon bearing pin be got final product.
G, loosen derrick line 9, final section crane arm 1 and equilibrium arm 2 are transferred to ground, pack up derrick line 9.
In the step b and step f of above-mentioned embodiment, when tenon bearing pin and lower edge tenon bearing pin are winded up in dismounting, can be to remove simultaneously; But the smooth running that obviously is unfavorable for the work of removing; In order to reach crane arm 1 and equilibrium arm 2 are better dismantled effect, the end face of the lower edge tenon 4 of adjacent two joint crane arms 1, adjacent two joint equilibrium arms 2 and the final section crane arm 1 that links to each other with body of the tower 3, equilibrium arm 2 is set to arc-shaped structure, then in step b; When removing crane arm 1; Tighten up derrick line 9 (tighten up derrick line 9, the tenon bearing pin that winds up of crane arm 1 is not stressed basically, be convenient to dismounting) earlier to the tenon bearing pin that winds up; The tenon bearing pin that winds up of crane arm 1 joint that crane arm of removing behind the inner 1 and outer end is to be removed is removed; Loosen derrick line 9 again, make outer end crane arm to be removed 1 around the rotation of lower edge tenon bearing pin, when removing equilibrium arm 2; Directly loosen derrick line 9; Make outer end equilibrium arm to be removed 2 around lower edge tenon bearing pin rotation, after outer end crane arm 1 to be removed rotates to state of equilibrium with equilibrium arm 2 (being that crane arm 1, equilibrium arm 2 are in plumbness with horizontal surface), remove the crane arm 1 removed inner back, equilibrium arm 2 and outer end crane arm 1 to be removed, the lower edge tenon bearing pin of equilibrium arm 2 joints again; Among the step f, loosen derrick line 9, make final section crane arm 1, equilibrium arm 2, after final section crane arm 1, equilibrium arm 2 rotate to state of equilibrium, remove the lower edge tenon bearing pin of final section crane arm 1, equilibrium arm 2 again around the rotation of lower edge tenon bearing pin.Adopt outer end crane arm 1 to be removed, equilibrium arm 2 around the mode that lower edge tenon bearing pin rotates, can make the unloading process of crane arm 1, equilibrium arm 2 comparatively steady, the safety that can improve unloading process, its structure such as Fig. 3 and shown in Figure 4.
In the above-described embodiment; After outer end crane arm 1 to be removed rotates to state of equilibrium with equilibrium arm 2; Outer end crane arm 1 to be removed is born by lower edge tenon bearing pin with the weight of equilibrium arm 2 basically, and at this moment, dismounting lower edge tenon bearing pin is difficulty very; At this moment, the derrick line 9 of can not pulling back is again transferred on the derrick line 9 the outer end crane arm to be removed 1 and the weight of equilibrium arm 2.Dismounting for ease of lower edge tenon bearing pin; In step b; After outer end crane arm 1 to be removed rotates to state of equilibrium with equilibrium arm 2; Taking off hanging sleeve jack 10 between linkage and outer end crane arm to be removed 1, the equilibrium arm 2; Tighten up jack 10 (making crane arm 1 that inner back removes, equilibrium arm 2 and outer end crane arm 1 to be removed, the lower edge tenon bearing pin of equilibrium arm 2 joints not stress basically) earlier, the crane arm 1 that the crane arm of removing behind the inner 1, equilibrium arm 2 and outer end is to be removed, the lower edge tenon bearing pin of equilibrium arm 2 joints are removed, and then are removed jack 10; In step f; After final section crane arm 1, equilibrium arm 2 rotate to state of equilibrium; Hanging sleeve jack 10 between tower cap 11 and final section crane arm 1, equilibrium arm 2; Tighten up jack 10 (making the body of the tower 3 and the lower edge tenon bearing pin of final section crane arm 1, equilibrium arm 2 joints not stress basically), the lower edge tenon bearing pin of final section crane arm 1, equilibrium arm 2 is removed, and then removed jack 10.
In above embodiment, when removing crane arm 1, can remove crane arm 1 and equilibrium arm 2 simultaneously with equilibrium arm 2; Or remove equilibrium arm 2 earlier and remove crane arm 1 again, as preferred embodiment, when removing crane arm 1 with equilibrium arm 2; Remove crane arm 1 earlier, remove equilibrium arm 2 again, in step e; When removing,, will take off linkage again and be assembled on the equilibrium arm 2 equilibrium arm 2 is removed the dismounting of gin pole mechanism with final section crane arm 1 that body of the tower 3 links to each other.Make the linkage of taking off that is used on the crane arm 1 be used further on the equilibrium arm 2 equilibrium arm 2 removed cost-cutting.
In above embodiment, can be respectively on every joint crane arm 1, equilibrium arm 2, be provided with and take off linkage, but make cost higher.
As preferred embodiment a kind of, all have at crane arm 1, equilibrium arm 2 under the situation of at least three joints, can move and be arranged on crane arm 1 and the equilibrium arm 2 taking off linkage.When then removing crane arm 1, equilibrium arm 2 from outside to inside, can make and take off linkage and also move inward simultaneously, make that taking off linkage for one can remove more piece crane arm 1, equilibrium arm 2 simultaneously.
As another preferred embodiment, have at least three joints at crane arm 1, equilibrium arm 2 has under the situation of two joints; Can be only move and be arranged on the crane arm 1 taking off linkage; Equally, when removing crane arm 1, only adopt one to take off linkage and can accomplish dismounting to more piece crane arm 1; And when removing equilibrium arm 2, then can be fixed on the equilibrium arm 2 and get final product taking off linkage.
In the above-described embodiment, taking off the removable mode that is arranged on the crane arm 1 of linkage can be on crane arm 1, chute to be set, and the strut bar of taking off linkage 6 is slidingly fitted in the chute; Or strut bar 6 is detachably attached on the crane arm 1, when needs will take off linkage by the outer end when move the inner, the mode through man-handling of materials realizes.As optimal way; Crane arm 1 is provided with movably lifting amplitude variation trolley 12; Lifting amplitude variation trolley 12 tops are set with upper ear plate 13, and the bottom of strut bar 6 is fixedly connected on the upper ear plate 13, in the bottom of lifting amplitude variation trolley 12 lower ear plate 14 with pin-and-hole are set; Outer end at every joint crane arm 1 is provided with the connecting panel 15 with pin-and-hole, and lower ear plate 14 is connected with connecting panel 15 through pin.Promptly take off linkage moving on crane arm 1, the segmentation of crane arm 1 is removed realizing through the mobile realization of lifting amplitude variation trolley 12 is whole.Certainly, when equilibrium arm 2 has three joints or three joints when above, also can this lifting amplitude variation trolley 12 be arranged on the equilibrium arm 2 equilibrium arm 2 is removed.
For improving reliability of structure, said strut bar 6 has four, and the top junction of these four strut bars 6 is connected to one, and the bottom is fixedly connected on respectively on four upper ear plates 13 of lifting amplitude variation trolley 12; The derrick line guide frame that is positioned at strut bar 6 tops is a leading sheave 16.As shown in Figure 2, at this moment, form triangular support structure between four strut bars 1 of gin pole structure and the lifting amplitude variation trolley 12, can improve reliability of structure greatly.
Embodiment:
Dismounting has the inside-climbing tower crane that eight joint crane arms 1, two save equilibrium arms 2, and its demolishing process is following:
Remove the 8th joint and the 7th joint crane arm 1 of outermost end:
1) at first with lifting amplitude variation trolley 12 move to the 6th the joint crane arm 1 the outer end (since the 8th the joint crane arm 1 shorter; Disposable the 8th joint and the 7th joint crane arm 1 are removed simultaneously), the connecting panel 15 that the lower ear plate 14 that makes lifting amplitude variation trolley 12 and the 6th saves on the crane arm 1 is connected the location through bearing pin;
2) transform the control circuit of lifting amplitude variation trolley 12, make the lifting amplitude variation trolley 12 can only be unidirectional toward inner walking (avoiding occurring safety misadventure);
3) derrick line 9 is passed gin pole mechanism top guide pulley 16, and derrick line 9 front ends are fixed on the joint that the 8th joint and the 7th saves crane arm 1;
4) tighten up derrick line 9 slightly, remove the tenon bearing pin that winds up of the 6th, seven joint crane arms 1 coupling end, slowly loosen derrick line 9, be vertical configuration until the 8th, seven joint crane arms 1.
5) on simple and easy gin pole, hang two tons of jacks 10, its lower end is hooked the 7th joint crane arm 1 and is tightened up jack 10, and the 6th, seven joint crane arms 1 coupling end lower edge bearing pin is not stressed;
6) remove the 6th, seven joint crane arms 1 coupling end lower edge bearing pin, loosen jack 10, the weight of the 7th, eight joint crane arms 1 is all born by derrick line 9, remove jack 10;
7) the 8th, seven liang of joint crane arm 1 transferred slowly, put to ground and pack up derrick line 9.
Remove second to the 6th joint crane arm 1:
Use the same method and remove second to the 6th joint crane arm 1.Attention is when removing the crane arm joint of pull bar 7; Carry out working fastening with two ten tons of jacks as 8 pairs of residue crane arms of not removing 1 of auxiliary stay cord; And the crane arm 1 with auxiliary stay cord 8 is when needing to remove; After derrick line 9 should save crane arm 1 and is locked, need to save auxiliary stay cord 8 dismountings on the crane arm 1.
Remove the first segment crane arm 1 of inner terminal:
1) front end with derrick line 9 is fixedly connected on the inner position of winding up of first segment crane arm 1; Linkage is taken off in dismounting, and (equilibrium arm 2 has only two joints; Taking off linkage need not move on equilibrium arm 2), lifting amplitude variation trolley 12 is fixed on the first segment crane arm 1, it can not be moved.
2) loosen derrick line 9, it is vertical with horizontal surface that first segment crane arm 1 is hung down into;
3) with the bearing end of jack pulling first segment crane arm 1, lower edge tenon bearing pin is not stressed basically, take off the pivot pin of lower edge tenon, loosen jack, crane arm weight is moved on the derrick line 9, remove jack, transfer this first segment crane arm 1.
The dismounting of equilibrium arm 2:
Remove the outer end second joint equilibrium arm 2: will take off the outer end that linkage is installed in first segment equilibrium arm 2; And respectively add a φ 15 auxiliary stay cords 8 in first segment equilibrium arm 2 outer ends, remove the pull bar 7 on the equilibrium arm 2; All the other demolishing process are identical with the demolishing process of the 8th, seven liang of joint crane arm 1.
The dismounting of inner first segment equilibrium arm 2 is identical with the demolishing process of the first segment crane arm 1 of inner terminal, after derrick line 9 is locked first segment equilibrium arm 2, the auxiliary stay cord on the first segment equilibrium arm 28 is removed.
The dismounting of body of the tower 3 utilizes interim winch, electric block, the jack that is provided with, with the body of the tower base section of tower crane, standard knot from bottom to top, merogenesis disintegrates, merogenesis is directly transferred to ground from the elevator hoistways of television mast.

Claims (7)

1. towering structure construction inside-climbing tower crane high-altitude dismantling worker method; Remove crane arm (1), equilibrium arm (2) earlier; Remove body of the tower (3) again; Go up the linkage of taking off that setting has strut bar (6) and derrick line guiding mechanism at crane arm (1) and equilibrium arm (2), when utilizing inside-climbing tower crane self lifting structure to remove crane arm (1) with equilibrium arm (2):
A, will take off linkage and be installed on the crane arm (1) removed inner back and the equilibrium arm (2); Adopt derrick line (9) to pass the derrick line guiding mechanism at strut bar (6) top, the front end of derrick line (9) is connected on outer end crane arm to be removed (1) and the equilibrium arm (2);
Wind up tenon bearing pin and the lower edge tenon bearing pin of b, crane arm (1) joint that the crane arm of removing behind the inner (1) and outer end is to be removed are removed, and the lower edge tenon bearing pin of equilibrium arm (2) joint that equilibrium arm of removing behind the inner (2) and outer end is to be removed is removed;
C, loosen derrick line (9), the crane arm that the outer end is to be removed (1), equilibrium arm (2) are transferred to ground, pack up derrick line (9);
D, repeat above-mentioned a to c step, until removing only surplus final section crane arm (1) that links to each other with body of the tower (3) and equilibrium arm (2);
E, derrick line (9) is passed the guiding mechanism at tower cap (11) top of body of the tower (3), the front end of derrick line (9) is connected on the final section crane arm (1) that links to each other with body of the tower (3) and the equilibrium arm (2);
F, final section crane arm (1), equilibrium arm (2) and body of the tower (3) bonded assembly lower edge tenon bearing pin are removed;
G, loosen derrick line (9), final section crane arm (1) and equilibrium arm (2) are transferred to ground, pack up derrick line (9);
It is characterized in that:
The end face of the lower edge tenon (4) of adjacent two joint crane arms (1), adjacent two joint equilibrium arms (2) and the final section crane arm (1) that links to each other with body of the tower (3), equilibrium arm (2) is set to arc-shaped structure; Then in step b; When removing crane arm (1); Tighten up derrick line (9) earlier, the tenon bearing pin that winds up of crane arm (1) joint that crane arm of removing behind the inner (1) and outer end is to be removed is removed, and loosens derrick line (9) again; Outer end crane arm to be removed (1) is rotated around lower edge tenon bearing pin; When removing equilibrium arm (2), directly loosen derrick line (9), outer end equilibrium arm to be removed (2) is rotated around lower edge tenon bearing pin; After outer end crane arm to be removed (1) and equilibrium arm (2) rotate to state of equilibrium, remove the crane arm (1) removed inner back, equilibrium arm (2) and outer end crane arm (1) to be removed, the lower edge tenon bearing pin of equilibrium arm (2) joint again; Among the step f; Loosen derrick line (9); Make final section crane arm (1), equilibrium arm (2) around the rotation of lower edge tenon bearing pin, after final section crane arm (1), equilibrium arm (2) rotate to state of equilibrium, remove the lower edge tenon bearing pin of final section crane arm (1), equilibrium arm (2) again;
In step b; After outer end crane arm to be removed (1) and equilibrium arm (2) rotate to state of equilibrium; Taking off hanging sleeve jack (10) between linkage and outer end crane arm to be removed (1), the equilibrium arm (2); Tighten up jack (10) earlier, the crane arm (1) that the crane arm of removing behind the inner (1), equilibrium arm (2) and outer end is to be removed, the lower edge tenon bearing pin of equilibrium arm (2) joint are removed, and then remove jack (10); In step f; After final section crane arm (1), equilibrium arm (2) rotate to state of equilibrium; Hanging sleeve jack (10) between tower cap (11) and final section crane arm (1), equilibrium arm (2); Tighten up jack (10), the lower edge tenon bearing pin of final section crane arm (1), equilibrium arm (2) is removed, and then remove jack (10).
2. towering structure construction inside-climbing tower crane high-altitude dismantling worker method as claimed in claim 1; It is characterized in that: in step a; When having pull bar (7) on outer end crane arm (1) to be removed, the equilibrium arm (2); Earlier between the top of the crane arm of removing behind the inner (1), equilibrium arm (2) and body of the tower (3), auxiliary stay cord (8) is set, removes pull bar (7) again.
3. towering structure construction inside-climbing tower crane high-altitude dismantling worker method as claimed in claim 2; It is characterized in that: when removing crane arm (1), remove crane arm (1) earlier, remove equilibrium arm (2) again with equilibrium arm (2); Then in step e; When removing,, will take off linkage again and be assembled on the equilibrium arm (2) equilibrium arm (2) is removed the dismounting of gin pole mechanism with final section crane arm (1) that body of the tower (3) links to each other.
4. according to the described towering structure construction of any claim in the claim 1 to 3 inside-climbing tower crane high-altitude dismantling worker method; It is characterized in that: said crane arm (1), equilibrium arm (2) all have at least three joints, saidly take off that linkage is removable to be arranged on crane arm (1) and the equilibrium arm (2).
5. according to the described towering structure construction of any claim in the claim 1 to 3 inside-climbing tower crane high-altitude dismantling worker method; It is characterized in that: said crane arm (1) has at least three joints; Equilibrium arm (2) has two joints, saidly takes off that linkage is removable to be arranged on the crane arm (1).
6. towering structure construction inside-climbing tower crane high-altitude dismantling worker method as claimed in claim 5; It is characterized in that: crane arm (1) is provided with movably lifting amplitude variation trolley (12); Lifting amplitude variation trolley (12) top is set with upper ear plate (13); The bottom of strut bar (6) is fixedly connected on the upper ear plate (13); Bottom at lifting amplitude variation trolley (12) is provided with the lower ear plate (14) with pin-and-hole, in the outer end of every joint crane arm (1) connecting panel (15) with pin-and-hole is set, and lower ear plate (14) is connected with connecting panel (15) through pin.
7. towering structure construction inside-climbing tower crane high-altitude dismantling worker method as claimed in claim 6; It is characterized in that: said strut bar (6) has four; The top junction of these four strut bars (6) is connected to one, and the bottom is fixedly connected on respectively on four upper ear plates (13) of lifting amplitude variation trolley (12); The derrick line guide frame that is positioned at strut bar (6) top is leading sheave (16).
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CN105507594A (en) * 2014-10-14 2016-04-20 德阳重科科技有限公司 Tower type concrete distributing machine
CN104860209B (en) * 2015-05-08 2017-01-04 中建三局第二建设工程有限责任公司 Movable arm tower crane height space-variant arm method
CN105621280B (en) * 2016-03-28 2018-05-22 庄爱军 The apparatus and method for mounting and dismounting crane arm
CN106144912A (en) * 2016-07-22 2016-11-23 太原科技大学 Arm method and apparatus is torn in ultra-large type tower crane high-altitude open
CN109095362B (en) * 2018-09-06 2020-02-14 中建三局集团有限公司 Large arm structure of conical tower crown external hanging tower crane in platform-free environment and dismantling method thereof
CN109678067B (en) * 2019-01-29 2020-02-21 国网山东省电力公司建设公司 A supplementary device of demolising for tower crane

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