CN103696569B - Overhead steel-beam platform dismounting device and method - Google Patents
Overhead steel-beam platform dismounting device and method Download PDFInfo
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- CN103696569B CN103696569B CN201310688276.9A CN201310688276A CN103696569B CN 103696569 B CN103696569 B CN 103696569B CN 201310688276 A CN201310688276 A CN 201310688276A CN 103696569 B CN103696569 B CN 103696569B
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Abstract
The invention discloses an overhead steel-beam platform dismounting device and a method. The dismounting device comprises a chain block, an insurance rope, a first wire rope, a pulley, a second wire rope and a windlass, wherein the chain block and the pulley are fixedly arranged below a corridor floor plate respectively through suspension holes which are reserved in the corridor floor plate at intervals; one end of the chain block is provided with a hand-pulling chain, the other end of the chain block is provided with a hanging hook, the hanging hook is connected to one end of a main steel beam through the first wire rope, one end of the insurance rope is connected with a suspension hole which is provided with the chain block, the other end of the insurance rope is connected with the main steel beam, one end of the second wire rope is connected with the main steel beam, and the other end of the second wire rope is connected with the windlass through the pulley. By utilizing the self gravity oscillation of the main steel beam, the main steel beam can be slowly dragged into a structural floor. The overhead steel-beam platform dismounting device has the advantages that simplicity in construction is realized, the completeness of the material can be guaranteed, the price is low, and the practicability is strong.
Description
Technical field
The present invention relates to building field, particularly relate to a kind of overhead steel-beam platform provision for disengagement and method.
Background technology
Along with the development of building trade in recent years, the appearance forrns of aerial vestibule or unsettled concrete structure selected by increasing highrise building.When this structure construction, often need immediately below it, set up supporting facility and platform system (as steel platform, steel truss etc.), carry out smoothly in order to auxiliary formwork engineering.
But after aerial vestibule or unsettled concrete structure construction, supporting facility, as steel platform, steel truss etc., because top structure has been constructed complete, tower crane cannot directly handling, acquires a certain degree of difficulty and danger in dismounting.
Existing method for dismounting is directly disintegrated by each component, be divided into several primary structural components, be transported in structural floor, recycling discharging platform or construction elevator carrying, so, the consumption not only for human, financial, and material resources is comparatively large, and cannot ensure for the integrity of component, have a strong impact on the reusing of each component, cost drops into higher.
Therefore, how to provide a kind of construct simple, ensure that material integrity, cost are low, overhead steel-beam platform provision for disengagement that can be practical and method are those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
The object of the present invention is to provide a kind of overhead steel-beam platform provision for disengagement and method, utilize the swing of the main girder steel self gravitation of platform to dismantle, its have construction simple, ensure that material integrity, cost are low, advantage that can be practical.
To achieve the above object, the present invention adopts following technical scheme:
A kind of overhead steel-beam platform provision for disengagement, for dismantling the girder steel platform with some main girder steels be positioned at below vestibule floor, comprise chain block, insurance steel cable, the first wire rope, pulley, the second wire rope and hoist engine, described chain block and described pulley are fixedly installed on below described vestibule floor respectively by hole for hoist separately reserved on described vestibule floor; One end of described chain block has and pulls chain, the other end of described chain block is provided with hook, described hook through described first wire rope be connected to described main girder steel by one end place, one end of described insurance steel cable is connected with the hole for hoist being provided with chain block, the other end of described insurance steel cable is connected with described main girder steel, one end of described second wire rope is connected with described main girder steel, and the other end of described second wire rope is connected with described hoist engine through described pulley.
Preferably, in above-mentioned overhead steel-beam platform provision for disengagement, described hole for hoist needs the main girder steel of dismounting to be uniformly distributed along the length direction of main girder steel relatively.
Preferably, in above-mentioned overhead steel-beam platform provision for disengagement, the link position of described second wire rope and described main girder steel is the 1/8-1/3 of whole main girder steel length apart from the distance of the one end main girder steel being arranged the first wire rope, described main girder steel is positioned at the inner side of the position for connecting the first wire rope for the position connecting the second wire rope.
Preferably, in above-mentioned overhead steel-beam platform provision for disengagement, the other end of described insurance steel cable and the link position of described main girder steel on described main girder steel for be connected the first wire rope and the second wire rope position between.
Preferably, in above-mentioned overhead steel-beam platform provision for disengagement, also comprise catch net, described catch net is arranged at the below of described girder steel platform.
Preferably, in above-mentioned overhead steel-beam platform provision for disengagement, also comprise some walk pipe, when above main girder steel moves to the floor of structural floor, between described main girder steel and the floor of structural floor interval arrange some described in walk pipe.
The invention also discloses a kind of overhead steel-beam platform method for dismounting, adopt overhead steel-beam platform provision for disengagement as above, described method for dismounting comprises the steps:
Step one, reserves hole for hoist during aerial gallery structure construction;
Step 2, removes the framed bent template of girder steel platform upper;
Step 3, removes time girder steel;
Step 4, hoist engine is in place, and fixes chain block, insurance steel cable and pulley respectively in the hole for hoist position that vestibule floor is reserved;
Step 5, remove main girder steel, specifically comprise the connection of cutting off between main girder steel and two ends steel plate embedded part, utilize chain block to be sling main girder steel one end, hoist engine pulls the second wire rope, utilizes pulley slowly to drag main girder steel, chain block and insurance steel cable slowly loosen, make chain block, insurance steel cable and first, second wire rope be in loaded state all the time, utilize the self gravitation of main girder steel to swing, slowly main girder steel is dragged in structural floor;
Step 6, by main girder steel haul to structural floor, transportation by lighter, to specifying handling position, utilizes tower crane steadily to winch to ground;
Step 7, repeats above step and removes all main girder steels successively.
Preferably, in above-mentioned overhead steel-beam platform method for dismounting, in described step 6, by artificial or employing hoist engine, main girder steel transportation by lighter is extremely specified handling position.
Overhead steel-beam platform provision for disengagement provided by the invention and method, chain block is utilized to be sling main girder steel one end, then hoist engine slowly drags main girder steel, chain block and insurance steel cable slowly loosen, chain block, insurance steel cable and first, second wire rope is made to be in loaded state all the time, utilize the self gravitation of main girder steel to swing, slowly main girder steel dragged in structural floor, its have construction simple, ensure material integrity, cost low and can be practical advantage.
Accompanying drawing explanation
Overhead steel-beam platform provision for disengagement of the present invention and method are provided by following embodiment and accompanying drawing.
Fig. 1 is the distribution schematic diagram that hole for hoist reserved by the vestibule floor of one embodiment of the invention;
Fig. 2 is the structural representation (being also simultaneously the structural representation before main girder steel moves) of the overhead steel-beam platform provision for disengagement of one embodiment of the invention;
Fig. 3 is the structural representation during the main girder steel of one embodiment of the invention moves;
Fig. 4 is the structural representation that the main body of the main girder steel of one embodiment of the invention moves to structural floor.
In figure, 1-vestibule floor, the main girder steel of 2-, 3-chain block, 31-pull chain, 32-hook, 4-insurance steel cable, 5-first wire rope, 6-pulley, 7-second wire rope, 8-hoist engine, 9-walk pipe, 10-catch net, 11-hole for hoist, 12-shear wall reserved opening, 13-outrigger, 14-structural floor.
Detailed description of the invention
Below will be described in further detail overhead steel-beam platform provision for disengagement of the present invention and method.
Below with reference to accompanying drawings the present invention is described in more detail, which show the preferred embodiments of the present invention, should be appreciated that those skilled in the art can revise the present invention described here and still realize beneficial effect of the present invention.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as limitation of the present invention.
In order to clear, whole features of practical embodiments are not described.They in the following description, are not described in detail known function and structure, because can make the present invention chaotic due to unnecessary details.Will be understood that in the exploitation of any practical embodiments, a large amount of implementation detail must be made to realize the specific objective of developer, such as, according to regarding system or the restriction about business, change into another embodiment by an embodiment.In addition, will be understood that this development may be complicated and time-consuming, but be only routine work to those skilled in the art.
For making object of the present invention, feature becomes apparent, and is further described the specific embodiment of the present invention below in conjunction with accompanying drawing.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Refer to Fig. 1 to figure, 4, this overhead steel-beam platform provision for disengagement, for dismantling the girder steel platform with some main girder steels 2 be positioned at below vestibule floor 1, described provision for disengagement comprises chain block 3, insurance steel cable 4, first wire rope 5, pulley 6, second wire rope 7 and hoist engine 8, and described chain block 3 is fixedly installed on below described vestibule floor 1 with described pulley 6 respectively by hole for hoist 11 separately reserved on described vestibule floor 1; One end of described chain block 3 has and pulls chain 31, the other end of described chain block 3 is provided with hook 32, described hook 32 through described first wire rope 5 be connected to described main girder steel 2 by one end place, one end of described insurance steel cable 4 is connected with the hole for hoist 11 being provided with chain block 3, the other end of described insurance steel cable 4 is connected with described main girder steel 2, one end of described second wire rope 7 is connected with described main girder steel 2, and the other end of described second wire rope 7 is connected with described hoist engine 8 through described pulley 6.This provision for disengagement utilizes chain block 3 to be sling main girder steel 2 one end, then hoist engine 8 slowly drags main girder steel 2, chain block 3 and insurance steel cable 4 slowly loosen, chain block 3, insurance steel cable 4 and first, second wire rope 5,7 is made to be in loaded state all the time, the self gravitation of main girder steel 2 is utilized to swing, slowly main girder steel 2 is dragged in structural floor 14, its have construction simple, ensure material integrity, cost low and can be practical advantage.
Preferably, in above-mentioned overhead steel-beam platform provision for disengagement, described hole for hoist 11 needs the main girder steel 2 of dismounting to be uniformly distributed along the length direction of main girder steel 2 relatively.The setting of chain block 3 and skidding and insurance steel cable 4 can be facilitated by arranging hole for hoist 11.Relatively needed by described hole for hoist 11 the main girder steel 2 of dismounting to be uniformly distributed along the length direction of main girder steel 2, the hoisting process of winner's girder steel 2 can be made more steady.
Preferably, in above-mentioned overhead steel-beam platform provision for disengagement, described second wire rope 7 and the link position of described main girder steel 2 are the 1/8-1/3 of whole main girder steel 2 length apart from the distance of the one end main girder steel 2 being arranged the first wire rope 5, described main girder steel 2 are positioned at the inner side of the position for connecting the first wire rope 5 for the position connecting the second wire rope 7.So be provided be beneficial to main girder steel 2 move into place smoothly in the structural floor 14 of the other end of main girder steel 2.
Preferably, in above-mentioned overhead steel-beam platform provision for disengagement, the other end of described insurance steel cable 4 and the link position of described main girder steel 2 on described main girder steel 2 for being connected between the first wire rope 5 and the position of the second wire rope 7.Setting like this, is conducive to the safety effect playing insurance steel cable 4, holds main girder steel 2 all the time.The variable-length of described insurance steel cable 4, is in loaded state all the time.
Preferably, in above-mentioned overhead steel-beam platform provision for disengagement, also comprise catch net 10, described catch net 10 is arranged at the below of described girder steel platform.Described catch net 10 can play the effect of dual fail-safe, places main girder steel 2 further and falls.
Preferably, in above-mentioned overhead steel-beam platform provision for disengagement, also comprise some walk pipe 9, when main girder steel 2 moves to above the floor of structural floor 14, between described main girder steel 2 and the floor of structural floor interval arrange some described in walk pipe 9.By arranging pipe 9, can make winner's girder steel 2 in moving process, making to form rolling friction between the floor of winner's girder steel 2 and structural floor 14, reduce the resistance of main girder steel 2 movement.
Please continue to refer to Fig. 1 to Fig. 4, the present embodiment also discloses a kind of overhead steel-beam platform method for dismounting, and adopt overhead steel-beam platform provision for disengagement as above, described method for dismounting comprises the steps:
Step one, reserves hole for hoist 11 during aerial gallery structure construction.That is, during gallery structure construction aloft, hole for hoist 11 need be reserved at vestibule floor 1 according to platform main girder steel 2 position in advance.
Step 2, removes the framed bent template (not shown) of girder steel platform upper.
Step 3, removes time girder steel (not shown).That is, after the framed bent form removable of girder steel platform upper cleans out, the secondary girder steel on girder steel platform is first dismantled.The junction plate of secondary girder steel i iron is disconnected one by one, because secondary girder steel is i iron, lighter in weight, during dismounting successively a dead lift on discharging platform or roofing, then with fit structure construction tower crane handling to ground.
Step 4, hoist engine 8 is in place, and fixes chain block 3, insurance steel cable 4 and pulley 6 respectively in hole for hoist 11 position that vestibule floor 1 is reserved.That is, before the main girder steel 2 of dismounting, hoist engine 8 is in place, and chain block 3, insurance steel cable 4 and pulley 6 are fixed in hole for hoist 11 position reserved at vestibule floor 1.Carry out all preparations.Isolation strip is set on ground, forbids that in unloading process, constructor enters this deathtrap.
Step 5, remove main girder steel 2, the described main girder steel 2 of the present embodiment is before dismounting, shear wall reserved opening 12 is goed deep in one end of described main girder steel 2, the other end is held in structural floor 14, incorporated by reference to consulting Fig. 2 to Fig. 4, described step 5 specifically comprises the connection of cutting off between main girder steel 2 and two ends steel plate embedded part, chain block 3 is utilized to be sling main girder steel 2 one end, after making one end of winner's girder steel 2 have certain altitude, hoist engine 8 pulls the second wire rope 7, pulley 6 is utilized slowly to drag main girder steel 2, chain block 3 and insurance steel cable 4 slowly loosen, make chain block 3, insurance steel cable 4 and first, second wire rope 5, 7 are in loaded state all the time, the self gravitation of main girder steel 2 is utilized to swing, slowly main girder steel 2 is dragged in structural floor 14.Constructor must keep in communication unimpeded in the process.Preferably, when main girder steel 2 progressively moves to structural floor 14, between main girder steel 2 and the floor of structural floor 14, arrange pipe 9 in advance, to realize the rolling friction between main girder steel 2 and the floor of structural floor 14, facilitate the movement of main girder steel 2.
Step 6, hauls to structural floor 14 by main girder steel 2, and transportation by lighter, to specifying handling position, utilizes tower crane steadily to winch to ground.Preferably, in above-mentioned steps six, main girder steel 2 can be lightered to appointment handling position by artificial or employing hoist engine 8.
Step 7, repeats above step and removes all main girder steels 2 successively, finally make girder steel platform all remove complete.
In sum, overhead steel-beam platform provision for disengagement provided by the invention and method, by arranging chain block, insurance steel cable, first wire rope, pulley, second wire rope and hoist engine, chain block is utilized to be sling main girder steel one end, then hoist engine slowly drags main girder steel, chain block and insurance steel cable slowly loosen, make chain block, insurance steel cable and first, second wire rope is in loaded state all the time, the self gravitation of main girder steel is utilized to swing, slowly main girder steel is dragged in structural floor 14, it is simple that it has construction, ensure material integrity, cost is low, and advantage that can be practical.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (7)
1. an overhead steel-beam platform method for dismounting, it is characterized in that, adopt overhead steel-beam platform provision for disengagement, described overhead steel-beam platform provision for disengagement, for dismantling the girder steel platform with some main girder steels be positioned at below vestibule floor, it is characterized in that, comprise chain block, insurance steel cable, the first wire rope, pulley, the second wire rope and hoist engine, described chain block and described pulley are fixedly installed on below described vestibule floor respectively by hole for hoist separately reserved on described vestibule floor; One end of described chain block has and pulls chain, the other end of described chain block is provided with hook, described hook through described first wire rope be connected to described main girder steel by one end place, one end of described insurance steel cable is connected with the hole for hoist being provided with chain block, the other end of described insurance steel cable is connected with described main girder steel, one end of described second wire rope is connected with described main girder steel, the other end of described second wire rope is connected with described hoist engine through described pulley, and described method for dismounting comprises the steps:
Step one, reserves hole for hoist during aerial gallery structure construction;
Step 2, removes the framed bent template of girder steel platform upper;
Step 3, removes time girder steel;
Step 4, hoist engine is in place, and fixes chain block, insurance steel cable and pulley respectively in the hole for hoist position that vestibule floor is reserved;
Step 5, remove main girder steel, specifically comprise the connection of cutting off between main girder steel and two ends steel plate embedded part, utilize chain block to be sling main girder steel one end, hoist engine pulls the second wire rope, utilizes pulley slowly to drag main girder steel, chain block and insurance steel cable slowly loosen, make chain block, insurance steel cable and first, second wire rope be in loaded state all the time, utilize the self gravitation of main girder steel to swing, slowly main girder steel is dragged in structural floor;
Step 6, by main girder steel haul to structural floor, transportation by lighter, to specifying handling position, utilizes tower crane steadily to winch to ground;
Step 7, repeats above step and removes all main girder steels successively.
2. overhead steel-beam platform method for dismounting according to claim 1, is characterized in that, in described step 6, by artificial or employing hoist engine, main girder steel transportation by lighter is extremely specified handling position.
3. overhead steel-beam platform method for dismounting according to claim 1, is characterized in that, described hole for hoist needs the main girder steel of dismounting to be uniformly distributed along the length direction of main girder steel relatively.
4. overhead steel-beam platform method for dismounting according to claim 1, it is characterized in that, the link position of described second wire rope and described main girder steel is the 1/8-1/3 of whole main girder steel length apart from the distance of the one end main girder steel being arranged the first wire rope, described main girder steel is positioned at the inner side of the position for connecting the first wire rope for the position connecting the second wire rope.
5. overhead steel-beam platform method for dismounting according to claim 4, is characterized in that, the other end of described insurance steel cable and the link position of described main girder steel on described main girder steel for be connected the first wire rope and the second wire rope position between.
6. overhead steel-beam platform method for dismounting according to claim 1, is characterized in that, also comprise catch net, and described catch net is arranged at the below of described girder steel platform.
7. overhead steel-beam platform method for dismounting according to claim 1, is characterized in that, also comprise some walk pipe, when above main girder steel moves to the floor of structural floor, between described main girder steel and the floor of structural floor interval arrange some described in walk pipe.
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| CN201310688276.9A CN103696569B (en) | 2013-12-16 | 2013-12-16 | Overhead steel-beam platform dismounting device and method |
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| CN201310688276.9A CN103696569B (en) | 2013-12-16 | 2013-12-16 | Overhead steel-beam platform dismounting device and method |
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| CN103696569B true CN103696569B (en) | 2015-05-20 |
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| CN104612910A (en) * | 2015-01-23 | 2015-05-13 | 北京天源科创风电技术有限责任公司 | Assembly method for hub and vanes in wind turbine generator |
| CN107555361B (en) * | 2017-10-19 | 2023-05-05 | 广州五羊建设机械有限公司 | Drift lifting device and method for large equipment |
| CN109098426B (en) * | 2018-09-06 | 2020-10-16 | 中建三局集团有限公司 | Externally hung cantilever support frame structure and inward moving dismantling method thereof |
| CN111039192A (en) * | 2019-11-01 | 2020-04-21 | 广东省源天工程有限公司 | Method for hoisting mechanical equipment by adopting aerial relay |
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| SU1375773A1 (en) * | 1986-04-14 | 1988-02-23 | Всесоюзный Проектно-Экспериментальный Конструкторский И Технологический Институт Министерства Промышленного Строительства Армсср | Method of constructing non-loading overstructure |
| CN102535845A (en) * | 2012-02-14 | 2012-07-04 | 浙江省建工集团有限责任公司 | Construction method of bearing frame of corridor structure |
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| SU1375773A1 (en) * | 1986-04-14 | 1988-02-23 | Всесоюзный Проектно-Экспериментальный Конструкторский И Технологический Институт Министерства Промышленного Строительства Армсср | Method of constructing non-loading overstructure |
| CN102535845A (en) * | 2012-02-14 | 2012-07-04 | 浙江省建工集团有限责任公司 | Construction method of bearing frame of corridor structure |
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