CN203924666U - The construction equipment of large-span steel girder framework interconnection system platform - Google Patents

The construction equipment of large-span steel girder framework interconnection system platform Download PDF

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Publication number
CN203924666U
CN203924666U CN201420363856.0U CN201420363856U CN203924666U CN 203924666 U CN203924666 U CN 203924666U CN 201420363856 U CN201420363856 U CN 201420363856U CN 203924666 U CN203924666 U CN 203924666U
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CN
China
Prior art keywords
dolly
sedan
girder
electromagnet
guide rail
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CN201420363856.0U
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Chinese (zh)
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张国松
赵银海
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ZHEJIANG ERJIAN STEEL STRUCTURE Co Ltd
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ZHEJIANG ERJIAN STEEL STRUCTURE Co Ltd
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Abstract

The utility model discloses a kind of construction equipment of large-span steel girder framework interconnection system platform, this device comprises dolly (1) and operation sedan-chair basket (2), and dolly (1) top is connected with operation sedan-chair basket (2) top through hoist engine (3); Operation sedan-chair basket (2) bottom is provided with guide rail (6), and guide rail (6) is provided with the second electromagnet and the 3rd electromagnet (8).This construction equipment can be saved expending, reduce construction cost and labour intensity, convenient to operation, reduction of erection time, do not take platform below construction space, stopping potential safety hazard of steel pipe, fastener.

Description

The construction equipment of large-span steel girder framework interconnection system platform
Technical field
The utility model relates to the construction technology of the large-span steel girder framework interconnection system platform in field of civil engineering, is specifically a kind of construction equipment of large-span steel girder framework interconnection system platform.
Background technology
Large span (refer generally to span and exceed 30m) steel girder frame interconnection system platform comprises by the many girders that are parallel to each other and being parallel to each other with Duo Gen and the secondary beam vertical with girder is connected and fixed the platform skeleton forming, and girder is concordant with time top surface of the beam; Every girder is a complete girder steel, its two ends are separately fixed on the periphery concrete structure of having built, specifically, periphery concrete structure refers to concrete side wall, column or the floor of having built, on periphery concrete structure, be embedded with steel corbel, girder two ends are welded and fixed with two steel corbels respectively; Every secondary beam is by many secondary beam cell formations that are located along the same line, one of the every secondary beam leftmost side the left end of beam element and the steel corbel of periphery concrete structure is welded and fixed and a Main Girder Welding of the right-hand member of this beam element and the leftmost side is fixed, one of the every secondary beam rightmost side right-hand member of beam element is with the steel corbel of periphery concrete structure is welded and fixed and a Main Girder Welding of this beam element left end and the rightmost side is fixed, and the two ends of every secondary beam other beam element except two inferior beam elements in outside are fixed with two adjacent Main Girder Welding respectively.After platform skeleton is set up, the structure such as sightseeing glass and concrete flower bed be can on platform skeleton, lay, transparent sightseeing platform or hanging garden etc. formed.
A kind of application of this large-span steel girder framework interconnection system platform be as at long span building thing as the top structure in cinema, opera house, auditorium, sports palace etc., to realize the artistic effect effect of transparent, daylighting at top; This top platform and ground or floor face distance are not far away especially, therefore adopt conventional construction equipment, on ground or floor face, set up full hall formula scaffold, again at scaffold top erection construction platform, workman stands on operating platform, girder, secondary beam element solder that handling is put in place are fixed, to set up out platform skeleton.There is following defect in the construction equipment of the prior art and construction method: steel pipe, the fastener material of the disposable input of full hall formula scaffold be many, expend greatly, construction cost is high; And the workload of building and removing all very large, build, remove consuming time for a long time, long construction period; Moreover this support is intensive, occupy whole spaces of large-span steel girder framework interconnection system platform below, the space of below cannot be utilized for a long time; This support height is large still more, and easily unstability, exists larger potential safety hazard.
The another kind application of this large-span steel girder framework interconnection system platform is to install unsettled transparent sightseeing platform in the courtyard of hollow out in high-rise building.Specifically, in modernization high-rise building design, install a large-scale breach in the identical bits of every first floor plate, this breach is generally rectangle, just form so from the bottom up the courtyard of complete hollow out, and the platform skeleton of large-span steel girder framework interconnection system platform is set up on certain layer (being generally top layer) floor, on platform skeleton, lay clear glass and set up flower bed greenbelt etc., just formed unsettled light and spacious transparent sightseeing platform and hanging garden, the artistic effect sense of hollow out form is extremely strong.This kind of application and the first are applied maximum difference and are, large-span steel girder framework interconnection system platform is completely unsettled, below does not have floor, therefore can not adopt conventional console mode full hall scaffold, but set up the scaffold of overhanging type and erection construction platform on scaffold from the floor at courtyard edge.Its concrete construction method is: first periphery concrete structure as floor on pre-buried steel bracket, main cable and girder is in place, weld respectively two otic placodes at girder two ends, the half of every otic placode be welded on girder end face and in addition half protrude girder outward, the protuberance of otic placode is shelved on steel corbel, to realize steel corbel temporary fixed at girder and girder two ends, then people stands on operation platform girder two ends and two steel corbels is welded completely; Then by the two ends of each beam element of same secondary beam equally through otic placode be overlapped on two adjacent girders temporarily or a steel corbel of girder and periphery concrete structure on, then a steel corbel of the two ends of inferior beam element and two adjacent girders or girder and periphery concrete structure is welded.
The maximum technical barrier that the construction equipment of the prior art and construction method exist is exactly the unsettled problem of setting up of scaffold operating platform, workman need to set up vertical supports on as the bearing column of floor at periphery concrete structure, then in vertical supports, set up the level of extending to courtyard central authorities to the steel pipe of encorbelmenting, on the steel pipe of encorbelmenting, lay at a certain distance the horizontal direction short steel pipes vertical with the steel pipe of encorbelmenting in level again, and on short steel pipes, set up foot rest, workman is stepping on foot rest and is advancing to level to encorbelmenting steel pipe foremost, spreading level is to the steel pipe of encorbelmenting again, continue to lay forward short steel pipes and foot rest, and so forth, workman just steps down in and on foot rest, carries out welding sequence.From analyzing above, set up welding procedure scaffold, its steel pipe, fastener are many, workload is large, and installation and removal are all wasted time and energy, and, most critical is that this operation is all high-altitude hanging operations, and practical operation difficulty is huge, and speed of application is slow, efficiency is low and have very large potential safety hazard.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of and can save the expending, reduce construction cost, reduce labour intensity of steel pipe, fastener, convenient to operation, reduction of erection time, do not take platform below construction space, stops the construction equipment of the large-span steel girder framework interconnection system platform of potential safety hazard.
Technical solution of the present utility model is, a kind of construction equipment of large-span steel girder framework interconnection system platform is provided, it comprises a dolly with roller and is positioned at two operation sedan-chair baskets of dolly both sides, each operation sedan-chair basket all with the vertical sliding fit of dolly, little roof is fixed two hoist engines, and the stay cord of each hoist engine is fixed with operation sedan-chair basket top; Dolly bottom is provided with lifting gear, and the lifting unit of lifting gear is provided with the first electromagnet; The bottom of each operation sedan-chair basket is provided with a fairlead, and in fairlead, sliding fit has a guide rail, and the front end of guide rail is provided with the second electromagnet, and the rear end of guide rail is provided with the 3rd electromagnet.
The construction method of utilizing the construction equipment of large-span steel girder framework interconnection system platform of the present utility model, its step comprises:
A, at the side of periphery concrete structure pre-buried steel bracket, at the pre-buried fixing steel plate of end face of periphery concrete structure;
B, by place a main cable and girder, and girder two ends are overlapped on temporarily on the steel corbel of periphery concrete structure through otic placode;
C, dolly is moved to periphery concrete structure end face, now, dolly bottom surface is concordant with two operation sedan-chair basket bottom surfaces, makes dolly just to girder, the guide rail of operation sedan-chair basket is parallel with girder, it is adsorbed on fixing steel plate the 3rd electromagnet energising of guide rail rear end;
D, two workmans enter respectively in two operation sedan-chair baskets of both sides, trailer wagon advances along left and right two guide rails, until dolly completely from periphery concrete structure top mobile to the end face of main beam rear end, the first electromagnet of decline dolly bottom by its energising, make the first electromagnet and the absorption of girder top fixing, again by the 3rd electromagnet power-off of two guide rails, then two guide rails that move forward make guide rail rear end no longer be positioned at periphery concrete structure top, two the operation sedan-chair baskets that progressively decline make two operation sedan-chair baskets and dolly finally become isosceles triangle again to the first electromagnet power-off, and in decline process, complete the welding of the rear end of girder and the steel corbel of periphery concrete structure,
E, continue trailer wagon forward, dolly advances in process, and the delta structure of two operation sedan-chair baskets and dolly blocks all the time girder and avoids unstability, until dolly advances to the front end of girder;
F, first electromagnet that declines are also switched on, make the first electromagnet and girder absorption fixing, then two the operation sedan-chair baskets that rise make two operation sedan-chair basket bottom surfaces concordant with dolly bottom surface, and in uphill process, complete the welding of the front end of girder and the steel corbel of periphery concrete structure;
The guide rail of g, each operation sedan-chair basket that protracts makes the second electromagnet of guide rail front end be positioned at the fixing steel plate top of periphery concrete structure, itself and fixing steel plate absorption are fixed to the second electromagnet energising, then give the first electromagnet power-off, trailer wagon advances along left and right two guide rails again, until dolly moves to periphery concrete structure completely from girder front end, now, a main girder construction is complete;
H, repeating step b~g, until whole girder and the welding procedure of periphery concrete structure complete;
I, by place each secondary beam unit lifting of same secondary beam, and utilize otic placode the two ends of each beam element are set up on two adjacent girders temporarily or a steel corbel of girder and periphery concrete structure on, to form a complete secondary beam;
J, by dolly move to periphery concrete structure end face and keep dolly bottom surface concordant with two operation sedan-chair basket bottom surfaces, and by dolly just to secondary beam, the guide rail of operation sedan-chair basket is parallel with secondary beam, it is adsorbed on fixing steel plate the 3rd electromagnet energising of guide rail rear end;
K, two workmans enter respectively in two operation sedan-chair baskets of both sides, trailer wagon advances along left and right two guide rails, until dolly is completely the end face of the rear end of time beam element of from periphery concrete structure top mobile to secondary beam rearmost end, the first electromagnet of decline dolly bottom by its energising, make the first electromagnet fixing with time beam element end face absorption, again by the 3rd electromagnet power-off of two guide rails, then two guide rails that move forward make guide rail rear end no longer be positioned at periphery concrete structure top, two the operation sedan-chair baskets that progressively decline make two operation sedan-chair baskets and dolly finally become isosceles triangle again to the first electromagnet power-off, and in decline process, complete the welding of the steel corbel of this beam element rear end and periphery concrete structure,
L, continue trailer wagon forward, dolly advances in process, and the delta structure of two operation sedan-chair baskets and dolly blocks all the time time beam element and avoids unstability, until dolly advances to the front end of time beam element, and the Nodes that namely this beam element docks with a girder;
M, decline the first electromagnet energising, make the first electromagnet fixing with time beam element absorption, and two the operation sedan-chair baskets that then rise make two operation sedan-chair basket bottom surfaces concordant with dolly bottom surface, and in uphill process, complete time front end of beam element and the welding of girder;
N, the guide rail of each operation sedan-chair basket is protracted, make the second electromagnet of guide rail front end be positioned at girder top, itself and girder absorption are fixed to the second electromagnet energising, then give the first electromagnet power-off, trailer wagon advances along left and right two guide rails again, until dolly moves to girder completely from this beam element front end, give the second electromagnet power-off of guide rail front end, the width of a girder again protracts guide rail, then itself and girder absorption are fixed the 3rd electromagnet energising of guide rail rear end, trailer wagon advances along left and right two guide rails, until dolly is completely from girder top mobile to next root the end face of the rear end of time beam element,
O, the 3rd electromagnet power-off is moved forward guide rail again, then itself and this time beam element absorption is fixed the first electromagnet energising of dolly bottom, two the operation sedan-chair baskets that decline make two operation sedan-chair baskets and dolly form isosceles triangle, give again the first electromagnet power-off, and in decline process, complete the welding of this beam element rear end and girder;
P, continue trailer wagon forward, until dolly advances to the front end of this beam element, the Nodes that namely this beam element docks with next root girder, the first electromagnet energising decline, make the first electromagnet fixing with time beam element absorption, then two the operation sedan-chair baskets that rise make two operation sedan-chair basket bottom surfaces concordant with dolly bottom surface, and in uphill process, complete time front end of beam element and the welding of this girder;
Q, repeating step n~p, until the welding procedure of one beam element foremost of this root secondary beam all completes.
The construction equipment of the utility model large-span steel girder framework interconnection system platform compared with prior art, has the following advantages and effect:
Utilize the essence of the construction method of this construction equipment to be, utilize dolly mobile each node location that needs welding that workman is moved on the girder of temporarily having set up or secondary beam, and by the lifting of operation sedan-chair basket, the relative girder of workman or inferior beam element are moved up and down, make workman's upper by the termination of girder or inferior beam element very easily, under, four weld seams in left and right weld, the utility model lands full hall scaffold or builder's jack without setting up as prior art, a large amount of steel pipes and fastener are omitted, significantly reduce consumptive material, construction cost and construction labour intensity are reduced, speed of application is fast, reduction of erection time, and both unlike full hall scaffold, took up room, also unlike builder's jack, set up dangerous complicated difficult operation, safe and reliable.And the technical solution of the utility model, there are several large design bright spots: the one, at the normal section of girder or inferior beam element, the dolly of this construction equipment, two operation sedan-chair baskets are delta structure and block girder or inferior beam element, make the steady safety of the process of advancing; The 2nd, when dolly has arrived each node as follows when beam element and girder joint or inferior beam element and periphery concrete structure joint or girder and periphery concrete structure joint, the construction equipment of isosceles triangle cannot pass through, now, by hoist engine lifting operation sedan-chair basket, make to operate sedan-chair basket concordant with dolly bottom surface to ensure that this construction equipment can pass through node smoothly; The 3rd, at operation sedan-chair basket, progressively in uphill process, the operation sedan-chair basket of both sides no longer blocks girder or secondary beam, has unstability hidden danger, now, utilizes the first electromagnet that dolly is firmly adsorbed on girder or secondary beam, to stop unstability hidden danger; Four is also the most important, after operation sedan-chair basket is carried on completely, dolly need to move to pass through node, now the first electromagnet of dolly bottom obviously cannot keep fixing with girder or secondary beam in movement, now, the guide rail of operation sedan-chair basket bottom is stretched out, utilize the second electromagnet or the 3rd electromagnet and the node fixation of guide rail, trailer wagon advances along guide rail again, two of left and right guide rail plays the effect of positioning and guiding to mobile dolly, prevent that dolly from moving middle unstability, thoroughly stops potential safety hazard.
As preferably, the length of guide rail is the twice of operation sedan-chair basket length, like this, the width of the girder that at every turn guide rail protracted, the later half of guide rail still coordinates with dolly, like this, safe and reliable, further stops unstability.
As improvement, guide rail upper surface is provided with a groove along its length, and the side of groove is provided with inner rack, operation sedan-chair basket base plate is provided with vertical through hole, in vertical through hole, be rotatably combined with a rotating shaft, rotating shaft upper end is fixed with handle, and rotating shaft lower end is fixed with gear, gear engages with inner rack, like this, workman is rotary handle in operation sedan-chair basket, transmitting gear, just can make guide rail advance or retreat, easy to operate.
As improving, two sides of dolly are provided with vertical raised line again, and the medial surface of each operation sedan-chair basket is provided with the vertical gathering sill with vertical raised line sliding fit, and this structure can ensure to operate sedan-chair basket and dolly slides flexibly, make again both connect the reliable disengaging that is difficult for.
Brief description of the drawings
Fig. 1 be the utility model large-span steel girder framework interconnection system platform construction equipment be positioned at large-span steel girder framework interconnection system platform time plan structure schematic diagram.
Fig. 2 is the girder of construction equipment and the side-looking structure for amplifying schematic diagram of steel corbel Nodes of the utility model large-span steel girder framework interconnection system platform.
Fig. 3 is that the construction equipment of the utility model large-span steel girder framework interconnection system platform is overlooked structure for amplifying schematic diagram while moving from inferior beam element to girder.
Fig. 4 is that the construction equipment of the utility model large-span steel girder framework interconnection system platform is overlooked structure for amplifying schematic diagram during from girder to secondary beam cell moving.
Fig. 5 faces structure for amplifying schematic diagram after the operation sedan-chair basket of the construction equipment of the utility model large-span steel girder framework interconnection system platform rises.
Fig. 6 faces structure for amplifying schematic diagram after the operation sedan-chair basket of the construction equipment of the utility model large-span steel girder framework interconnection system platform puts down.
Fig. 7 be the construction equipment of the utility model large-span steel girder framework interconnection system platform handle, gear and guide rail overlook structure for amplifying schematic diagram.
Shown in figure 1, dolly, 2, operation sedan-chair basket, 3, hoist engine, 4, the first electromagnet, 5, fairlead, 6, guide rail, 7, the second electromagnet, 8, the 3rd electromagnet, 9, girder, 10, groove, 11, inner rack, 12, rotating shaft, 13, handle, 14, gear, 15, vertical raised line, 16, vertical gathering sill, 17, steel corbel, 18, fixing steel plate, 19, otic placode, 20, secondary beam, 21, inferior beam element, 22, cylinder, 23, roller.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, the construction equipment of the utility model large-span steel girder framework interconnection system platform, it comprises a dolly 1 with roller 23 and is positioned at two operation sedan-chair baskets 2 of dolly 1 both sides.Each operation sedan-chair basket 2 all with the vertical sliding fit of dolly 1, two sides that are dolly 1 are provided with vertical raised line 15, the medial surface of each operation sedan-chair basket 2 is provided with vertical gathering sill 16, and vertical raised line 15 sliding fits of dolly 1 each side are in the vertical gathering sill 16 of operation sedan-chair basket 2.Two hoist engines 3 are fixed at dolly 1 top, and the stay cord of each hoist engine 3 is fixed with operation sedan-chair basket 2 tops; Operate sedan-chair basket 2 tops and be provided with suspension ring, free end and the suspension ring of hoist engine 3 stay cords are fixed.Dolly 1 bottom is provided with lifting gear as cylinder 22, and the lifting unit of lifting gear is provided with the first electromagnet 4 as the piston rod of cylinder.The bottom of each operation sedan-chair basket 2 is provided with a fairlead 5, and the interior sliding fit of fairlead 5 has a guide rail 6, and the front end of guide rail 6 is provided with the second electromagnet 7, and the rear end of guide rail 6 is provided with the 3rd electromagnet 8.Guide rail 6 upper surfaces are provided with a groove 10 along its length, the side of groove 10 is provided with inner rack 11, operation sedan-chair basket 2 base plates are provided with vertical through hole, in vertical through hole, be rotatably combined with a rotating shaft 12, rotating shaft 12 upper ends are fixed with handle 13, rotating shaft 12 lower ends are fixed with gear 14, and gear 14 engages with inner rack 11.The length of guide rail 6 is the twice of operation sedan-chair basket 2 length.
The construction method of utilizing the construction equipment of the utility model large-span steel girder framework interconnection system platform, it comprises the following steps.
A, at the side of periphery concrete structure pre-buried steel bracket 17, at the pre-buried fixing steel plate 18 of end face of periphery concrete structure.If this platform is the top structure as long span building thing, that periphery concrete structure just refers to load-bearing side wall or bearing column, and steel corbel 17 is embedded in the side of side wall or column, and fixing steel plate 18 is embedded in the end face of side wall or column.If this platform is the unsettled transparent sightseeing platform as the courtyard of hollow out in high-rise building, that periphery concrete structure refers to especially top floor of floor, and steel corbel 17 is embedded in the side of floor, and fixing steel plate 18 is embedded in the end face of floor.
B, by girder 9 hoisted in position, and through otic placode 19, girder 9 two ends are overlapped on the steel corbel 17 of periphery concrete structure temporarily.Specifically, the half of otic placode 19 is welded on the end face of girder 9, and second half protrudes girder 9, and the protuberance of otic placode 19 is shelved on steel corbel 17.
C, dolly 1 is moved to periphery concrete structure end face, now, dolly 1 bottom surface is concordant with two operation sedan-chair basket 2 bottom surfaces, make dolly 1 just to girder 9, the guide rail 6 of operation sedan-chair basket 2 is parallel with girder 9, the 3rd electromagnet 8 is adsorbed on fixing steel plate 18 the 3rd electromagnet 8 energisings of guide rail 6 rear ends, and guide rail 6 protrude the length of these dollies 1 such as the length of dolly 1 guide rail section.
D, two workmans enter respectively in two operation sedan-chair baskets 2 of both sides, trailer wagon 1 advances along left and right two guide rails 6, on floor over there or side wall, fixed traction mechanism advances as carried out trailer wagon 1 with Chain block on hoist engine or floor over there or side wall, until dolly 1 completely from periphery concrete structure top mobile to the end face of girder 9 rear ends, the first electromagnet 4 of decline dolly 1 bottom by its energising, make the first electromagnet 4 fixing with girder 9 top absorption, again by the 3rd electromagnet 8 power-off of two guide rails 6, then two guide rails 6 that move forward make guide rail 6 rear ends no longer be positioned at periphery concrete structure top, make two operation sedan-chair baskets 2 and dolly 1 finally become isosceles triangle again to the first electromagnet 4 power-off with the hoist engine 3 at dolly 1 top two the operation sedan-chair baskets 2 that progressively decline, and in decline process, complete the welding of the rear end of girder 9 and the steel corbel 17 of periphery concrete structure, specifically, there are four weld seams of a circle up and down in this end face of girder 9, in the time that operation sedan-chair basket 2 drops to three/one stroke, two workman's cooperations weld the upper weld seam of girder 9, operation sedan-chair basket 2 continues in decline process, two workmans weld two of left and right weld seam respectively, in the time that operation sedan-chair basket 2 drops to bottom, two workman's cooperations weld 9 times weld seams of girder.Certainly, give after the first electromagnet 4 power-off at every turn, can the first electromagnet 4 be promoted with lifting gear, being convenient to dolly 1 moves, if but girder 9 or secondary beam 20 are more smooth, just without lifting, follow-up nature first electromagnet 4 that need not decline again of giving before the first electromagnet 4 energising also.
E, continue trailer wagon 1 forward, dolly 1 advances in process, two operation sedan-chair baskets 2 block all the time girder 9 with the delta structure of dolly 1 and avoid unstability, until dolly 1 advances to the front end of girder 9, the namely Nodes docking of girder 9 front ends and steel corbel 17 pre-buried on periphery concrete structure.
F, first electromagnet 4 that declines are also switched on, make the first electromagnet 4 fixing with girder 9 absorption, then two the operation sedan-chair baskets 2 that rise make two operation sedan-chair basket 2 bottom surfaces concordant with dolly 1 bottom surface, and in uphill process, complete the welding of the front end of girder 9 and the steel corbel 17 of periphery concrete structure; Specifically, lower weld seam is welded in two the workman's cooperations in the time of bottom of operation sedan-chair basket 2, and in operation sedan-chair basket 2 uphill process, two workmans weld respectively left and right weld seam, and in the time that operation sedan-chair basket 2 has risen 2/3rds strokes, two workmans weld upper weld seam.
The guide rail 6 of g, each operation sedan-chair basket 2 that protracts makes the second electromagnet 7 of guide rail 6 front ends be positioned at fixing steel plate 18 tops of periphery concrete structure, make the second electromagnet 7 fixing with fixing steel plate 18 absorption to the second electromagnet 7 energisings, then give the first electromagnet 4 power-off, trailer wagon 1 advances along left and right two guide rails 6 again, until dolly 1 moves to periphery concrete structure completely from girder 9 front ends, now, a girder 9 is constructed complete.
H, repeating step b~g, until all girder 9 completes with the welding procedure of periphery concrete structure.
I, by each beam element 21 hoisted in position of same secondary beam 20, and utilize equally otic placode 19 two ends of each beam element 21 are set up on two adjacent girders 9 temporarily or a steel corbel 17 of girder 9 and periphery concrete structure on, specifically, twice beam elements 21 at the forward and backward two ends of same secondary beam 20 are all overlapped on a steel corbel 17 of a girder 9 and periphery concrete structure, and other beam element 21 be all overlapped on two adjacent girders 9, be positioned at collinear each beam element 21 and form a complete secondary beam 20.
J, by dolly 1 move to periphery concrete structure end face and keep dolly 1 bottom surface concordant with two operation sedan-chair basket 2 bottom surfaces, and by dolly 1 just to secondary beam 20, the guide rail 6 of operation sedan-chair basket 2 is parallel with secondary beam 20, the 3rd electromagnet 8 is adsorbed on the fixing steel plate 18 of periphery concrete structure end face the 3rd electromagnet 8 energisings of guide rail 6 rear ends.
K, two workmans enter respectively in two operation sedan-chair baskets 2 of both sides, trailer wagon 1 advances along left and right two guide rails 6, until the end face of the rear end of complete one beam element 21 from periphery concrete structure top mobile to secondary beam 20 rearmost ends of dolly 1, the first electromagnet 4 of decline dolly 1 bottom by its energising, make the first electromagnet 4 fixing with the 21 end face absorption of time beam element, again by the 3rd electromagnet 8 power-off of two guide rails 6, then two guide rails 6 that move forward make guide rail 6 rear ends no longer be positioned at periphery concrete structure top, two the operation sedan-chair baskets 2 that progressively decline make two operation sedan-chair baskets 2 and dolly 1 finally become isosceles triangle again to the first electromagnet 4 power-off, and in decline process, complete the welding of the steel corbel 17 of this beam element 21 rear end and periphery concrete structure, inferior beam element 21 is also four weld seams, welding process is identical with girder 9 end welding processes, therefore repeat no more.
L, continue trailer wagon 1 forward, dolly 1 advances in process, two operation sedan-chair baskets 2 block all the time time beam element 21 with the delta structure of dolly 1 and avoid unstability, until dolly 1 advances to the front end of time beam element 21, and the Nodes that namely this beam element 21 front end dock with a girder 9.
M, first electromagnet 4 that declines are also switched on, make the first electromagnet 4 fixing with 21 absorption of time beam element, then two the operation sedan-chair baskets 2 that rise make two operation sedan-chair basket 2 bottom surfaces concordant with dolly 1 bottom surface, and in uphill process, complete time front end of beam element 21 and the welding of girder 9.
N, the guide rail 6 of each operation sedan-chair basket 2 is protracted, make the second electromagnet 7 of guide rail 6 front ends be positioned at girder 9 tops, make the second electromagnet 7 fixing with girder 9 absorption to the second electromagnet 7 energisings, then give the first electromagnet 4 power-off, trailer wagon 1 advances along left and right two guide rails 6 again, until dolly 1 moves to girder 9 completely from this beam element 21 front ends, give the second electromagnet 7 power-off of guide rail 6 front ends, the width of a girder 9 again protracts guide rail 6, then make itself and girder 9 adsorb fixing the 3rd electromagnet 8 energisings of guide rail 6 rear ends, trailer wagon 1 advances along left and right two guide rails 6, until dolly 1 is completely from girder 9 top mobile to next root the end face of the rear end of time beam element 21.
O, make guide rail 6 rear ends no longer be positioned at girder 9 tops guide rail 6 reach again the 3rd electromagnet 8 power-off, then make the first electromagnet 4 adsorb fixing with this beam element 21 the first electromagnet 4 energisings of dolly 1 bottom, two the operation sedan-chair baskets 2 that decline make two operation sedan-chair baskets 2 form isosceles triangle with dolly 1, give again the first electromagnet 4 power-off, and in decline process, complete the welding of this beam element 21 rear end and girder 9.
P, continue trailer wagon 1 forward, until dolly 1 advances to the front end of this beam element 21, the Nodes that namely this beam element 21 docks with next root girder 9, the first electromagnet 4 energising decline, make the first electromagnet 4 fixing with 21 absorption of time beam element, then two the operation sedan-chair baskets 2 that rise make two operation sedan-chair basket 2 bottom surfaces concordant with dolly 1 bottom surface, and in uphill process, complete time front end of beam element 21 and the welding of this girder 9.
Q, repeating step n~p, until the welding procedure of one beam element 21 foremost of this root secondary beam 20 all completes, certainly, when foremost one beam element 21 of construction, that steel corbel 17 pre-buried in this beam element 21 front end and periphery concrete structure is welded, the guide rail 6 that protracts adsorbs the second electromagnet 7 and the fixing steel plate 18 of periphery concrete structure fixing, and last dolly 1 advances on periphery concrete structure.
R, repeating step i~q, until all secondary beam 20 has been constructed.

Claims (4)

1. the construction equipment of a large-span steel girder framework interconnection system platform, it is characterized in that: it comprises the dolly (1) of a band roller (23) and is positioned at two operation sedan-chair baskets (2) of dolly (1) both sides, each operation sedan-chair basket (2) all with the vertical sliding fit of dolly (1), two hoist engines (3) are fixed at dolly (1) top, and the stay cord of each hoist engine (3) is fixed with operation sedan-chair basket (2) top; Dolly (1) bottom is provided with lifting gear, and the lifting unit of lifting gear is provided with the first electromagnet (4); The bottom of each operation sedan-chair basket (2) is provided with a fairlead (5), the interior sliding fit of fairlead (5) has a guide rail (6), the front end of guide rail (6) is provided with the second electromagnet (7), and the rear end of guide rail (6) is provided with the 3rd electromagnet (8).
2. the construction equipment of large-span steel girder framework interconnection system platform according to claim 1, is characterized in that: the length of guide rail (6) is the twice of operation sedan-chair basket (2) length.
3. the construction equipment of large-span steel girder framework interconnection system platform according to claim 1, it is characterized in that: guide rail (6) upper surface is provided with a groove (10) along its length, the side of groove (10) is provided with inner rack (11), dolly (1) base plate is provided with vertical through hole, in through hole, be rotatably combined with a rotating shaft (12), rotating shaft (12) upper end is fixed with handle (13), rotating shaft (12) lower end is fixed with gear (14), and gear (14) engages with inner rack (11).
4. the construction equipment of large-span steel girder framework interconnection system platform according to claim 1, it is characterized in that: two sides of dolly (1) are provided with vertical raised line (15), the medial surface of each operation sedan-chair basket (2) is provided with the vertical gathering sill (16) with vertical raised line (15) sliding fit.
CN201420363856.0U 2014-07-02 2014-07-02 The construction equipment of large-span steel girder framework interconnection system platform Withdrawn - After Issue CN203924666U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104060813A (en) * 2014-07-02 2014-09-24 浙江省二建钢结构有限公司 Construction device and method for large-span steel girder frame connection platform

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104060813A (en) * 2014-07-02 2014-09-24 浙江省二建钢结构有限公司 Construction device and method for large-span steel girder frame connection platform
CN104060813B (en) * 2014-07-02 2016-06-08 浙江省二建钢结构有限公司 The constructing device of large-span steel girder framework connection mode platform and constructional method

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