CN103470062A - Auxiliary structure for integrally lifting steel structure grid - Google Patents
Auxiliary structure for integrally lifting steel structure grid Download PDFInfo
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- CN103470062A CN103470062A CN2013104738551A CN201310473855A CN103470062A CN 103470062 A CN103470062 A CN 103470062A CN 2013104738551 A CN2013104738551 A CN 2013104738551A CN 201310473855 A CN201310473855 A CN 201310473855A CN 103470062 A CN103470062 A CN 103470062A
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Abstract
The invention discloses an auxiliary structure for integrally lifting a steel structure grid. The auxiliary structure comprises a lifting lug and auxiliary lifting points, wherein the lifting lug is welded on an embedded part on the top surface of a structural column bracket and is used for hanging a lifting point on a hand-chain hoist, and the auxiliary lifting points are arranged below each periphery supporting seat ball of the grid, are away from a bottom chord ball by 4m and are used as lower lifting points for lifting the grid; the structure of the lifting lug is a 114mm*4mm steel tube stand column; the structural shapes of the auxiliary lifting points are structural shapes of single cones. The auxiliary structure for integrally lifting the steel structure grid has the advantages of being simple and practical in structure, strong in hanging operability, ensuring the successful implementation of engineering and being convenient to popularize and the beneficial effect of providing a safe, reliable, feasible and simple lifting manner for the construction engineering of integrally lifting the steel structure grid in which a lifting appliance cannot be used or a support cannot be set up due to the limitation of a construction field.
Description
technical field
The present invention relates to a kind of auxiliary construction of steel structure net rack Integral lifting, belong to building engineering construction machinery.
Background technology
Space truss structure is a kind of space structures linked by node according to certain grid configuration by many rod members, with its there is space-load, in the space structures of advantage is widely used in sports palace, cinema, exhibition hall and station the wait public building such as large such as lightweight, rigidity is large, anti-seismic performance is good.According to the difference of construction technology, the form of structure of rack has Corkscrews rack and the ball rack of welding.The mounting method of rack in the rack engineering, have: high altitude bulk method, itemize or piecemeal Method for Installation, high-altitude sliding method, integral body are hung the method for liter, Integral Lifting and integrated lifting, and wherein whole rack lift method refers to that lifting means is installed on structural column promotes rack.Common Integral Lifting has at present:
1, singly put forward the rack method, be by rack after design attitude is always spelled on the spot, utilize the feed-through hydraulic jack mini-plant be arranged on pillar that rack is risen to design elevation, then descend in place, fixing.Described feed-through hydraulic jack is for promoting pulling equipment, specification: 40t, 100t, 200t.
2, the rack method of climbing, be by rack after design attitude is always spelled on the spot, utilize the feed-through hydraulic jack mini-plant be arranged on rack to promote anchor point and be fixed on post or, on dead man, rack risen to design elevation, then carry out in place, fixing.
3, Sheng Liang lifts the net method, that rack is always spelled to the assembling collar tie beam that simultaneously installs grid frame supported on the spot at design attitude, net rack support is held on to this collar tie beam middle part, on each capital, installs lifting means, these lifting means are being lifted rack and are being risen to design elevation when rising beam.
4, rising the net slip-form, is that rack is always spelled on the spot at design attitude, and it is to utilize the sliding formwork be arranged on the interior reinforcing bar of post to be promoted by hydraulic jack that rack promotes.
Above-mentioned existing rack Integral Lifting, do not need Large-scale Hoisting to establish and facility, but need more elevator and the short steel column of temporary supporting, girder steel, and the preparation amount is large.Wherein the short steel column of temporary supporting will, higher than capital more than 4 meters, could rise to the bearing on rack ground capital fixing.Above-mentioned rack Integral Lifting is applicable to span 50m～70m, more than height 4m, the large and medium-sized perimeter support network frame house cap that weight is larger
.described feed-through hydraulic jack, for the Special jack of the presstressed reinforcing steels such as stretch-draw steel hinge line, need and stretching oil pump is used in conjunction with, and stretch-draw and the power that returns back to top provide by the hydraulic oil of stretching oil pump.
In the Integral lifting installation of the large tracts of land rack on the roof of Digital Television TV mansion, Tianjin studio centre attached building, and complete safely the Integral lifting installation engineering of large tracts of land rack.
The large tracts of land rack on the roof of Digital Television TV mansion, described Tianjin studio centre attached building, for adopting the dual-layer welding ball node rack of the space structures formed by wind up layer, lower edge layer and web member layer, rack west and east span 44.2m, north and south span 33.2m, high 3.484 ㎡ of rack, the rack gross area 1468 ㎡, heavy 130t, net rack support height 18m.The top-bottom chord of steel structure net rack is the pipe of φ 219 * 20 to the maximum, and web member is the pipe of φ 114 * 4 to the maximum, is the welded spherical node rack, and what connect the ball maximum is the hollow ball of D600 * 30, and the hollow ball total quantity is 413.8 degree are provided fortification against earthquakes.The peripheral narrow space that steel structure net rack is installed, the Elements of Space Grid Truss surrounding has the end bay structure.
In the integral hoisting construction engineering of the Large Area Steel rack of the building that the end bay structure is arranged for roof and the surrounding thereof of Digital Television TV mansion, above-mentioned Tianjin studio centre attached building, how to select economy, safe and reliable a kind of lifting means that is different from prior art to implement the Integral lifting of Large Area Steel rack, becoming the problem that building industry engineers and technicians extremely pay close attention to, is also the urgently problem of R and D of construction engineering technician.
Summary of the invention
Purpose of the present invention, be to provide the auxiliary construction with safe and reliable, stability and workable a kind of steel structure net rack Integral lifting, it has lifting steadily, lifting difference is little, synchronism is good, and work efficiency is high, the characteristic of construction safety, and do not need to arrange the short steel column of temporary supporting, just the bearing of rack bottom surface can be risen to the fixed point of capital.
For realizing purpose of the present invention, the technical scheme adopted is:
A kind of auxiliary construction of steel structure net rack Integral lifting is characterized in that: by the hanger of suspension centre on the extension bottle gouard moved by hands be welded on structural column bracket end face built-in fitting and be arranged on each peripheral bearing ball of rack below, apart from the high 4m of lower edge ball place, as the auxiliary suspension centre of the lower suspension centre of hoisting grid, form.
Described hanger, its structure is 114mm * 4mm steel pipe post steel pipe post.
Described auxiliary suspension centre, the planform that its planform is the single cone in four sides
.
Advantage of the present invention and beneficial effect
compared with prior art, the auxiliary construction of rack Integral lifting of the present invention has the following advantages and beneficial effect:
Advantage: the simple structure practicality, for the strong operability of rack Integral lifting, promote difference little, synchronism is good
,labour intensity is low, and work efficiency is high, and construction safety has guaranteed that engineering implements smoothly, is convenient to promote.
Beneficial effect:
1, do not need to arrange the short steel column of temporary supporting, just the bearing of rack bottom surface can be risen to the fixed point of capital.
2, auxiliary suspension centre all is located at the ball node place of net rack support, adopts the bottle gouard moved by hands lifting means, does not change the stress of Space Truss Design, in whole rack lifting process, keeps the rack strut and tie to be subject to force direction constant.
3,the auxiliary construction of rack Integral lifting of the present invention is that construction plant is limited, can't use large scale hoisting machinery maybe can't set up the Integral lifting Construction of The Grids engineering of bracing frame, and a kind of safe and reliable, feasible simple lifting means is provided.
The accompanying drawing explanation
The auxiliary construction schematic diagram that Fig. 1 is rack Integral lifting of the present invention;
Fig. 2 is shackle structure schematic diagram of the present invention;
Fig. 3 is auxiliary hanging dot structure shape schematic diagram of the present invention;
Fig. 4 is rack Synchronous lifting control line schematic diagram.
In Fig. 1: 1 structural column; 2 bracket end face built-in fittings; 3 hangers; 4 auxiliary suspension centres; 5 racks; 6 bottle gouards moved by hands; 7 hoisting chains; 8 manual-chains
.
In Fig. 2: 1 structural column; 2 bracket end face built-in fittings; 3 hangers.
In Fig. 3: 4 auxiliary hanging dot structure shape schematic diagrames.
In Fig. 4: 1 structural column; 5 racks
;7 hoisting chains; 9 scales.
The specific embodiment
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with accompanying drawing and most preferred embodiment, the invention will be described in further detail.
Embodiment
A kind of auxiliary construction of steel structure net rack Integral lifting, by the hanger 3 of suspension centre on the extension bottle gouard moved by hands 6 be welded on structural column 1 bracket end face built-in fitting 2 and be arranged on each peripheral bearing ball of rack 5 below, apart from the high 4m of lower edge ball place, as the auxiliary suspension centre 4 of the lower suspension centre of hoisting grid 5, form, as shown in Figure 1.
Described hanger 3, its structure is 114mm * 4mm steel pipe post steel pipe post, as shown in Figure 2.
Described auxiliary suspension centre 4, the planform that its planform is the single cone in four sides, as shown in Figure 3.
The operation of rack Integral lifting
1) lifting operation
Area is for be the rack of 44.2m * 33.2, at the scene on the spot total assembled after, first promote 4 meters height, the auxiliary suspension centre 4 of the single cone in four sides is installed, utilize auxiliary suspension centre 4 and adopt 45 bottle gouards moved by hands, 6 lifting racks 5.By dropping manual-chain 8, hoisting chain 7 makes bottle gouard moved by hands 6 promote reposefully rack 5 to the design elevation place, then in place and fixing.Rack lower edge bearing ball node rise to capital and fixing after, then cut away the auxiliary suspension centre 4 of the single cone in four sides.
2) control of rack lifting process
As shown in Figure 4, scale 9 is set on structural column 1, establishes special messenger's rack of looking over one's shoulder and promote synchronous situation, as found to promote the discrepancy in elevation, surpass 100mm and should stop immediately promoting, nonsynchronous bottle gouard moved by hands 6 is carried out to force bearing adjustment, rack 5 lower edge ball nodes are adjusted to after sustained height to adjust and continue Integral lifting.Check once after every lifting 200mm height, bottle gouard moved by hands 6 devious is once adjusted, so repeatedly promoted.
In the present invention, described bottle gouard moved by hands is commercially available prod.
The auxiliary construction of steel structure net rack Integral lifting of the present invention, for because of construction workshop ground limited, and can't use large scale hoisting machinery maybe can't set up the integral hoisting construction engineering of the Large Area Steel rack of the roof of Digital Television TV mansion, Tianjin studio centre attached building of bracing frame and the building that surrounding has the end bay structure thereof, a kind of safe and reliable, feasible simple lifting means is provided.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1.
onethe auxiliary construction of kind of steel structure net rack Integral lifting is characterized in that: by the below that is welded on structure and is arranged on each peripheral bearing ball of rack (5), apart from the high 4m of lower edge ball place, as the hanger (3) of the upper suspension centre of the extension bottle gouard moved by hands (6) on davit (1) bracket end face built-in fitting (2) and the auxiliary suspension centre (4) that fills the lower suspension centre of net (5), form
.
2. the auxiliary construction of steel structure net rack Integral lifting according to claim 1, it is characterized in that: described hanger (3), its structure is 114mm * 4mm steel pipe post steel pipe post.
3. the auxiliary construction of steel structure net rack Integral lifting according to claim 1
,it is characterized in that: described auxiliary suspension centre (4), the planform that its planform is the single cone in four sides
.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104738551A CN103470062A (en) | 2013-10-11 | 2013-10-11 | Auxiliary structure for integrally lifting steel structure grid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104738551A CN103470062A (en) | 2013-10-11 | 2013-10-11 | Auxiliary structure for integrally lifting steel structure grid |
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| CN103470062A true CN103470062A (en) | 2013-12-25 |
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| CN2013104738551A Pending CN103470062A (en) | 2013-10-11 | 2013-10-11 | Auxiliary structure for integrally lifting steel structure grid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226422A (en) * | 2017-07-18 | 2017-10-03 | 青岛海西重机有限责任公司 | A kind of single arm support is fixed and hung and arm support hinge installation method |
| CN109138454A (en) * | 2018-09-19 | 2019-01-04 | 中国十七冶集团有限公司 | A kind of installation method of super high-rise building outline border bandy truss |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0734669A (en) * | 1993-07-20 | 1995-02-03 | Taisei Corp | Fitting structure for hanging bracket and disassembling method |
| CN103225408A (en) * | 2013-04-18 | 2013-07-31 | 成军 | Construction method for long-span net rack multiple-mast independent type integral lifting |
| CN203531413U (en) * | 2013-10-11 | 2014-04-09 | 天津三建建筑工程有限公司 | Auxiliary structure hoisting whole steel structure wire frame |
-
2013
- 2013-10-11 CN CN2013104738551A patent/CN103470062A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0734669A (en) * | 1993-07-20 | 1995-02-03 | Taisei Corp | Fitting structure for hanging bracket and disassembling method |
| CN103225408A (en) * | 2013-04-18 | 2013-07-31 | 成军 | Construction method for long-span net rack multiple-mast independent type integral lifting |
| CN203531413U (en) * | 2013-10-11 | 2014-04-09 | 天津三建建筑工程有限公司 | Auxiliary structure hoisting whole steel structure wire frame |
Non-Patent Citations (1)
| Title |
|---|
| 宫健等: "钢网架整体提升施工工艺", 《天津建设科技》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107226422A (en) * | 2017-07-18 | 2017-10-03 | 青岛海西重机有限责任公司 | A kind of single arm support is fixed and hung and arm support hinge installation method |
| CN107226422B (en) * | 2017-07-18 | 2018-12-21 | 青岛海西重机有限责任公司 | A kind of single arm support is fixed to be hung and cantilever crane hinge installation method |
| CN109138454A (en) * | 2018-09-19 | 2019-01-04 | 中国十七冶集团有限公司 | A kind of installation method of super high-rise building outline border bandy truss |
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Application publication date: 20131225 |