CN104594642A - Large-span net rack aloft pairing, installing and overall horizontal moving method - Google Patents
Large-span net rack aloft pairing, installing and overall horizontal moving method Download PDFInfo
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- CN104594642A CN104594642A CN201410747879.6A CN201410747879A CN104594642A CN 104594642 A CN104594642 A CN 104594642A CN 201410747879 A CN201410747879 A CN 201410747879A CN 104594642 A CN104594642 A CN 104594642A
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Abstract
The invention discloses a large-span net rack aloft pairing, installing and overall horizontal moving method. The method includes the following steps of erecting a scaffold operation platform at the right end of a frame in the length direction of the factory frame; arranging two parallel slide rails on the platform, wherein the rails extend in the length direction of the frame; splicing and welding a first net rack on the platform; making the first net rack slide along the rails aloft, placing the first net rack on the rails temporarily after the first net rack leaves the platform so that a next net rack can be spliced, making the two net racks slide aloft together after the two net racks are spliced, and sequentially conducting operation for subsequent net racks; splicing all the net racks and making the net racks slide together; fixing all the net racks sliding in place to the factory frame; detaching the scaffold operation platform. The method is easy to operate, small in labor input, high in work efficiency, safe and reliable; especially under the condition that field conditions are limited, the construction progress can be greatly improved, and the construction cost can be better saved.
Description
Technical field
The present invention relates to constructional materials or building unit preparation at the scene, carrying or processing technique field, particularly relate to transport or the mounting technology field of building unit.
Background technology
Traditional steel roof truss, space truss structure mounting method are all adopt ground group to, welding, assembled, then carry out the method for burst lifting or integral hoisting.At present, in large-scale steel structure building construction process, make the restriction of on-the-spot place, mill construction span is too large, setting height(from bottom) crosses high factor all has certain influence to the installation on ground of Elements of Space Grid Truss, roof truss, especially when rack span is large, more inconveniently be grouping upper air installing, so install very difficult by traditional construction method.According to the bulk-breaking high altitude bulk scheme of routine, need to set up a large amount of height scaffoldings, not only assembly, welding job amount are greatly, and there is larger quality, security risk, and the difficulty of construction increases, and has a significant impact the construction period.Assembled according to ground burst, as the scheme that double-machine lifting crane burst is installed, because on-the-spot place is limited, the sheet number divided is more, operation easier is large, and installation period is long, and crane machine-team consumption is large, deficiency in economic performance, and also need carry out rod member in high-altitude between sheet with sheet and be connected, security risk is larger.According to the method for ground integral assembling, integral hoisting, then rack first must be installed other work just can carried out in rack institute overlay area, this largely affects causing the construction of either inside equipment Foundations and the installation period of equipment.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of large span grid high-altitude group to installation integral translating method, the method is simple to operate, human input is few, operating efficiency is high, safe and reliable, particularly at the scene in the restricted situation of condition, adopt this method not only safe and reliable, and can greatly improve construction speed, save construction cost better.
For solving the problems of the technologies described above, present invention employs following technical scheme:
A kind of large span grid high-altitude of the present invention group, to installation integral translating method, comprises the following steps:
(1) length direction along mill building frame sets up scaffold operating platform at the right-hand member of described framework;
(2) above scaffold operating platform, arrange two sliding rails be parallel to each other, described sliding rail extends along the length direction of described framework, and sets up on the girder steel or steel column of described framework;
(3) on described scaffold operating platform, complete assembled, the welding of first piece of rack of square pyramid space grid;
(4) described first piece of rack is along described sliding rail air translation, leaves described scaffold operating platform;
(5) repetition step (3), (4) complete assembled, the integral slipping of all racks;
(6) all racks slippage put in place are fixed on described mill building frame, and rack installs;
(7) scaffold operating platform is removed.
Further, specifically comprise the following steps in step (4):
(4.1) assembled, welding is carried out at the Part I of described platform to described first piece of rack;
(4.2) with jack described Part I jacking left the strong point on described platform, and measure each point absolute altitude, by each point Pass line adjustment to consistent, simultaneously, described sliding rail below described Part I is placed respectively some floor mop actuated small roadsters, wheel and the described track of described actuated small roadster are slidably matched;
(4.3) fall described jack, adjust described actuated small roadster placement location, make described Part I and described actuated small roadster uniform contact;
(4.4) remove the strong point of the lower edge ball of described jack and described Part I, rack prepares in place;
(4.5) welded and installed traction hanger one end of Chain block being suspended on described traction hanger on towing point steel column, the other end of described Chain block is simultaneously on the pocket base that hangs over described Part I and actuated small roadster;
(4.6) described Part I is along described track slippage under the traction of described Chain block, after described Part I slippage goes out described platform, stops slippage, and is fixed on said frame by described Part I;
(4.7) continuous dress, the slippage that step (4.1) to (4.6) completes first piece of remaining Part II of rack is repeated.
Further, also comprise the steps: in step (6)
(6.1) periphery not arranging described actuated small roadster on said frame winds up on fulcrum and evenly arranges several jack, by all rack integral jackings, after the fulcrum that winds up at all net rack support places leaves described actuated small roadster, described actuated small roadster is removed, and jack is declined, it is in place that the landing of figure paper size entirety pressed by all racks;
(6.2) all actuated small roadsters on described mill building frame are removed according to the method for step (6.1);
(6.3) the steel strut top board of the base-plate of all racks and described mill building frame is welded and fixed.
In above-mentioned arbitrary technical scheme, step also specifically comprises the following steps in (3):
(3.1) check solder sphere, rod member specification and rod member size, make center first module lower edge grid, and first module lower edge grid axial dimension and Diagonal Dimension are measured;
(3.2) first prefabricated lower edge unit is placed on the strong point of described platform center, and solder sphere center and strong point center is coincide, with prevent rack assembled complete after overall offset and torsion;
(3.3) will wind up ball, upper chord be connected to web member together with form several grid cells that winds up, and the grid cell that these winded up welds together, make and form first module and to wind up grid, during welding, the external diameter of upper chord coincide with the internal diameter of the connecting hole on ball that winds up, to ensure the stable of single grid, and then ensure the stability of assembled rear overall rack;
(3.4) first module lower edge grid and first module are winded up together with Mesh connection, form first module grid;
(3.5) with first module grid for benchmark is according to the assembled first piece of rack of the order spread to both sides from centre, concrete assembled order is lower edge grid, web member, wind up grid;
Preferably, in the present invention, the welding sequence of overall rack is first lower-chord panel point, after to wind up node, in the middle of rack, spread welding to both sides, all weld seams on each node after first pass is all soldered, then carry out the welding of second time simultaneously, to prevent welding stress from concentrating, rack is made to produce distortion.
Preferably, the scaffold in described scaffold operating platform is full hall supporting foot hand cradle, and sets up according to the step of chock → put bar → vertical rod of sweeping the floor → vertical equity bar → transverse horizontal bar → horizontal diagonal brace → scaffold floor → railing → safety net.Adopt scaffold operating platform to save the use of large-scale crane, optimize and reduce loaded down with trivial details construction sequence, shorten the construction period, reduce construction cost to a great extent simultaneously.Meanwhile, full hall scaffold system density is large, and structure is more firm, and support performance is stronger, thus more effectively ensure that the safety of the rack assembling construction that weight is larger.
In sum, Construction of The Grids method of the present invention, sets up scaffold operating platform in factory building one end, the group that burst carries out rack on platform to, assembled, the first rack of assembled factory building other end ragged edge, this sheet rack is assembled complete after, by this rack to one end slippage away from scaffold.The slippage of rack can have been coordinated by pulling equipments such as floor mop actuated small roadster and bottle gouards moved by hands, adopt the manual slippage of Chain block, security control is good, and the situation if any actuated small roadster sideslip and malformation can stop slippage immediately, thus effectively ensure that the safety of construction.In order to reduce the load of the track be located on scaffold, this sheet rack is divided into two parts assembled respectively, slippage, after this sheet rack slippage puts in place and leaves platform, it is positioned on track temporarily, continue according to the assembled lower a slice rack of identical method, lower a slice rack is assembled complete after be assembled into entirety carry out slippage again with front a slice rack, by that analogy, until complete the assembled of overall rack, slippage, complete the assembled of last a slice rack, after slippage, rack entirety is substantially in place, then, jack stand rack is utilized to remove the pulling equipments such as actuated small roadster, complete the installation in position of rack.
The beneficial effect of Construction of The Grids method of the present invention is: Home Network frame construction method overcomes the restriction of the unfavorable conditions such as the restriction of on-the-spot site condition, work high above the ground, rack span be large, do not need large-scale crane can complete the integral slipping of large span grid, and this construction method is easy and simple to handle, do not need to set up a large amount of scaffold, greatly reduce construction complexity, substantially reduce the construction period, the connection operation of rod member need not be carried out in high-altitude, decrease lifting machine-team and Hoisting Security risk, save construction cost, improve economic benefit.And Construction of The Grids carries out above factory building, the construction of factory building inner base equipment and the installation period of equipment can not be affected completely, make that object of construction production is ruly carries out smoothly, improve efficiency of construction.
Below in conjunction with accompanying drawing, a kind of large span grid high-altitude of the present invention group is described further installation integral translating method.
Accompanying drawing explanation
Fig. 1 is that a kind of large span grid high-altitude of the present invention group is to the scaffold operating platform facade arrangement diagram installing integral translating method;
Fig. 2 is that a kind of large span grid high-altitude of the present invention group is to the scaffold operating platform layout plan installing integral translating method;
Fig. 3 is that a kind of large span grid high-altitude of the present invention group is to first piece of assembled floor map of rack Part I in installation integral translating method;
Fig. 4 is the A-A sectional drawing of Fig. 3;
Fig. 5 is the partial enlarged drawing at M place in Fig. 3;
Fig. 6 is the partial enlarged drawing at N place in Fig. 4;
Fig. 7 is that a kind of large span grid high-altitude of the present invention group is to first piece of rack Part I glide mirror (plane) schematic diagram in installation integral translating method;
Fig. 8 is the B-B sectional drawing of Fig. 7;
Fig. 9 is the floor map after a kind of large span grid high-altitude of the present invention group puts in place to the rack integral slipping installed in integral translating method;
Figure 10 is the D-D sectional drawing of Fig. 9.
Detailed description of the invention
As shown in Figures 1 to 10, the rack in the present invention is square pyramid space grid 4, and a kind of large span grid high-altitude of the present invention group, to installation integral translating method, comprises the following steps:
(1) length direction along mill building frame 1 sets up scaffold operating platform 2 at the right-hand member of described framework 1, and this platform 2 also can set up the left end at framework 1, as long as set up in one end of factory building;
(2) two sliding rails be parallel to each other 3 are set above scaffolding platform 2, described sliding rail 3 extends along the length direction of described framework 1, and set up on the girder steel 11 or steel column 12 of described framework 1, square pyramid space grid 4 is common space truss structure, and the concrete method for arranging of girder steel 11 or steel column 12 is see routine techniques means;
(3) on described scaffold operating platform 2, complete assembled, the welding of first piece of rack 41 of square pyramid space grid 4, concrete steps are as follows:
(3.1) check solder sphere, rod member specification and rod member size, make center first module lower edge grid, and first module lower edge grid axial dimension and Diagonal Dimension are measured;
(3.2) first prefabricated lower edge unit is placed on the strong point that described platform 2 hits exactly, and solder sphere center and strong point center are coincide;
(3.3) will wind up ball, upper chord be connected to web member together with form several grid cells that winds up, and the grid cell that these winded up welds together, make and form first module and to wind up grid, during welding, the external diameter of upper chord coincide with the internal diameter of the connecting hole on ball that winds up;
(3.4) first module lower edge grid and first module are winded up together with Mesh connection, form first module grid;
(3.5) with first module grid for benchmark is according to the assembled first piece of rack 41 of the order spread to both sides from centre, concrete assembled order is lower edge grid, web member, wind up grid, should be noted in the process and the accumulation of error is discharged into both sides, control accumulated error, grid is advisable with negative common difference.
(4) described first piece of rack 41 is along described sliding rail 3 air translation, leaves described scaffold operating platform 2, specifically comprises the steps:
(4.1) assembled, welding is carried out at the Part I of described platform 2 to described first piece of rack 41;
(4.2) with jack described Part I jacking left the strong point on described platform 2, and measure each point absolute altitude, by each point Pass line adjustment to consistent, simultaneously, described sliding rail 3 below described Part I is placed respectively some floor mop actuated small roadsters 31, wheel and the described track 3 of described floor mop actuated small roadster 31 are slidably matched;
(4.3) described jack is fallen, adjust the placement location of described actuated small roadster 31, make described Part I and described actuated small roadster 31 uniform contact, allow the distribution of weight of described Part I on actuated small roadster 31, guarantee each stress point uniform force and the removing of every obstacle thing;
(4.4) remove the strong point of the lower edge ball of described jack and described Part I, rack 4 prepares in place;
(4.5) welded and installed traction hanger one end of Chain block being suspended on described traction hanger on towing point steel column 11, the other end of described Chain block is simultaneously on the pocket base that hangs over described Part I and actuated small roadster 31;
(4.6) described Part I is along the slippage of described track 3 under the traction of described Chain block, after described Part I slippage goes out described platform 2, stops slippage, and is fixed on by described Part I on described framework 1;
(4.7) continuous dress, the slippage that step (4.1) to (4.6) completes first piece of remaining Part II of rack 41 is repeated.
(5) repetition step (3), (4) complete assembled, the integral slipping of rack 4;
(6) all racks slippage put in place are fixed on described mill building frame 1, and concrete steps are as follows:
(6.1) periphery not arranging described actuated small roadster 31 on described framework 1 winds up on fulcrum and evenly arranges several jack, by all rack integral jackings, after the fulcrum that winds up at all net rack support places leaves described actuated small roadster 31, described actuated small roadster 31 is removed, and jack is declined, it is in place that the landing of figure paper size entirety pressed by all racks;
(6.2) other actuated small roadsters 31 on described mill building frame are removed according to the method for step (6.1);
(6.3) be welded and fixed by the steel strut top board of the base-plate of all racks and described mill building frame 1, rack installs.
(7) scaffold operating platform is removed, described scaffold operating platform adopts full hall supporting foot hand cradle, and sets up according to the step of chock → put bar → vertical rod of sweeping the floor → vertical equity bar → transverse horizontal bar → horizontal diagonal brace → scaffold floor → railing → safety net.Adopt scaffold operating platform simple and convenient, save the use of large-scale crane, ensure that construction safety, shorten the construction period, reduce construction cost.
In Construction of The Grids method of the present invention, in the assembled welding process of rack, welding sequence is first lower-chord panel point, after to wind up node, in the middle of rack, spread welding to both sides simultaneously, all weld seams on each node after first pass is all soldered, then carry out the welding of second time, concentrate make rack produce distortion to prevent welding stress.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (6)
1. large span grid high-altitude group is to an installation integral translating method, it is characterized in that: comprise the following steps:
(1) length direction along mill building frame sets up scaffold operating platform at the right-hand member of described framework;
(2) above scaffold operating platform, arrange two sliding rails be parallel to each other, described sliding rail extends along the length direction of described framework, and sets up on the girder steel or steel column of described framework;
(3) on described scaffold operating platform, complete assembled, the welding of first piece of rack of square pyramid space grid;
(4) described first piece of rack is along described sliding rail air translation, leaves described scaffold operating platform;
(5) repetition step (3), (4) complete assembled, the integral slipping of all racks;
(6) all racks slippage put in place are fixed on described mill building frame, and rack installs;
(7) scaffold operating platform is removed.
2. a kind of large span grid high-altitude according to claim 1 group is to installation integral translating method, it is characterized in that: step (4) specifically comprises the following steps:
(4.1) assembled, welding is carried out at the Part I of described platform to described first piece of rack;
(4.2) with jack described Part I jacking left the strong point on described platform, and measure each point absolute altitude, by each point Pass line adjustment to consistent, simultaneously, described sliding rail below described Part I is placed respectively some floor mop actuated small roadsters, wheel and the described track of described floor mop actuated small roadster are slidably matched;
(4.3) fall described jack, adjust described actuated small roadster placement location, make described Part I and described actuated small roadster uniform contact;
(4.4) remove the strong point of the lower edge ball of described jack and described Part I, rack prepares in place;
(4.5) welded and installed traction hanger one end of Chain block being suspended on described traction hanger on towing point steel column, the other end of described Chain block is simultaneously on the pocket base that hangs over described Part I and actuated small roadster;
(4.6) described Part I is along described track slippage under the traction of described Chain block, after described Part I slippage goes out described platform, stops slippage, and is fixed on said frame by described Part I;
(4.7) continuous dress, the slippage that step (4.1) to (4.6) completes first piece of remaining Part II of rack is repeated.
3. a kind of large span grid high-altitude according to claim 2 group is to installation integral translating method, it is characterized in that: step (6) comprises the steps:
(6.1) periphery not arranging described actuated small roadster on said frame winds up on fulcrum and evenly arranges several jack, by all rack integral jackings, after the fulcrum that winds up at all net rack support places leaves described actuated small roadster, described actuated small roadster is removed, and jack is declined, it is in place that the landing of figure paper size entirety pressed by all racks;
(6.2) all actuated small roadsters on described mill building frame are removed according to the method for step (6.1);
(6.3) the steel strut top board of the base-plate of all racks and described mill building frame is welded and fixed.
4. a kind of large span grid high-altitude group according to any one of claim 1-3, to installation integral translating method, is characterized in that: step (3) specifically comprises the following steps:
(3.1) check solder sphere, rod member specification and rod member size, make center first module lower edge grid, and first module lower edge grid axial dimension and Diagonal Dimension are measured;
(3.2) first prefabricated lower edge unit is placed on the strong point of described platform center, and solder sphere center and strong point center are coincide;
(3.3) will wind up ball, upper chord be connected to web member together with form several grid cells that winds up, and the grid cell that these winded up welds together, make and form first module and to wind up grid, during welding, the external diameter of upper chord coincide with the internal diameter of the connecting hole on ball that winds up;
(3.4) first module lower edge grid and first module are winded up together with Mesh connection, form first module grid;
(3.5) with first module grid for benchmark is according to the assembled first piece of rack of the order spread to both sides from centre, concrete assembled order is lower edge grid, web member, wind up grid.
5. a kind of large span grid high-altitude according to claim 4 group is to installation integral translating method, it is characterized in that: the welding sequence of overall rack is first lower-chord panel point, after to wind up node, in the middle of rack, spread welding to both sides simultaneously, all weld seams on each node after first pass is all soldered, then carry out second time welding.
6. a kind of large span grid high-altitude according to claim 5 group is to installation integral translating method, it is characterized in that: the scaffold in described scaffold operating platform is full hall supporting foot hand cradle, and set up according to the step of chock → put bar → vertical rod of sweeping the floor → vertical equity bar → transverse horizontal bar → horizontal diagonal brace → scaffold floor → railing → safety net.
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| CN201410747879.6A CN104594642A (en) | 2014-12-09 | 2014-12-09 | Large-span net rack aloft pairing, installing and overall horizontal moving method |
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| CN201410747879.6A CN104594642A (en) | 2014-12-09 | 2014-12-09 | Large-span net rack aloft pairing, installing and overall horizontal moving method |
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| CN107780661A (en) * | 2016-08-24 | 2018-03-09 | 中冶天工集团天津有限公司 | A kind of towed accumulation slippage Construction of The Grids devices and methods therefor in high-altitude |
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| CN109972846A (en) * | 2018-08-19 | 2019-07-05 | 中建六局安装工程有限公司 | A kind of moulding bed and its construction method for steel cylinder upside-down mounting jack-up construction |
| CN109138172A (en) * | 2018-08-31 | 2019-01-04 | 上海宝冶集团有限公司 | Wide span steel roof frame modular unit sliding method |
| CN109440942A (en) * | 2018-12-12 | 2019-03-08 | 中国三冶集团有限公司 | A kind of factory building roof rack mounting structure and construction technology |
| CN109440942B (en) * | 2018-12-12 | 2023-11-14 | 中国三冶集团有限公司 | Installation structure and construction process of factory building roof grid |
| CN109372274A (en) * | 2018-12-17 | 2019-02-22 | 北京城建集团有限责任公司 | A kind of high-altitude wire frame installation system and its construction method |
| CN109372274B (en) * | 2018-12-17 | 2023-12-01 | 北京城建集团有限责任公司 | High-altitude net rack installation system and construction method thereof |
| CN109812021B (en) * | 2019-01-22 | 2021-08-03 | 中国二十冶集团有限公司 | Installation method of large-span welding ball net rack |
| CN109812021A (en) * | 2019-01-22 | 2019-05-28 | 中国二十冶集团有限公司 | A kind of installation method of large span welding ball grid |
| CN110863568A (en) * | 2019-11-22 | 2020-03-06 | 中国十七冶集团有限公司 | Hoisting construction method for large-span steel structure roof in complex environment |
| CN112112284A (en) * | 2020-09-25 | 2020-12-22 | 河南省安装集团有限责任公司 | Integral jacking construction method for net rack |
| CN112576045A (en) * | 2020-11-30 | 2021-03-30 | 中国五冶集团有限公司 | Step-by-step sliding installation method for steel structure net rack |
| CN113089844A (en) * | 2021-03-10 | 2021-07-09 | 中交第三航务工程局有限公司宁波分公司 | Space grid construction process carried out by combining existing building with sliding |
| CN116464164A (en) * | 2023-04-14 | 2023-07-21 | 中建三局集团有限公司 | Multi-conjoined large-span roof steel grid system and construction method thereof |
| CN116464164B (en) * | 2023-04-14 | 2023-09-26 | 中建三局集团有限公司 | Multi-conjoined large-span roof steel grid system and construction method thereof |
| CN117513764A (en) * | 2024-01-08 | 2024-02-06 | 北京建工集团有限责任公司 | Sliding method with installation position lower than sliding rail |
| CN117513764B (en) * | 2024-01-08 | 2024-04-12 | 北京建工集团有限责任公司 | Sliding method with installation position lower than sliding rail |
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Application publication date: 20150506 |