CN109057366A - A kind of steel construction spiral stairs segmented assembly method - Google Patents
A kind of steel construction spiral stairs segmented assembly method Download PDFInfo
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- CN109057366A CN109057366A CN201811014862.4A CN201811014862A CN109057366A CN 109057366 A CN109057366 A CN 109057366A CN 201811014862 A CN201811014862 A CN 201811014862A CN 109057366 A CN109057366 A CN 109057366A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
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- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention discloses a kind of steel construction spiral stairs segmented assembly method, include the following steps: 1) to draw steel construction spiral stairs in the ground line-transect on ground in the ratio of 1:1 on the ground；2) it makes on the ground and assembling support is installed；3) the ground line-transect of rest steel platform steel box-girder is drawn on platform steel plate and marks control point；4) rest steel platform steel box-girder is successively lifted on platform steel plate using crane；5) interim junction steel plate is made；6) several interim junction steel plates are welded on the upside of bench steel box-girder；7) bench steel box-girder is lifted into installation site using crane, is docked bench steel box-girder one end by control point with platform steel box-girder by interim junction steel plate.The present invention can make the assembly of spiral stairs more convenient, more efficient, and effectively improve assembled accuracy, while higher with site environment and the design requirement goodness of fit, to greatly improve the in-site installation construction efficiency of steel construction spiral stairs.
Description
Technical field
The present invention relates to technical field of building construction more particularly to a kind of steel construction spiral stairs segmented assembly methods.
Background technique
With the development of national economy technology, the moulding of more and more public buildings is also more and more graceful, in order to keep
The overall beautiful and coordination of project, and the big feature of people streams in public places amount is taken into account, indoor pedestrian passage uses beautiful design, holds
Carry power it is high, from heavy and light, the quick steel construction spiral stairs of installation.
Steel construction spiral stairs belong to special-shaped space structure, while considering the production, transport, installation of steel construction spiral stairs
Etc. factors, need by steel construction spiral stairs carry out sectional making, be generally divided into bench+rest steel platform, but making
Bench is divided into inside steel box-girder, middle part steel box-girder, outside steel box-girder, H-type connecting cross beam and step plate composition again in journey；Rest steel
Platform is divided into platform steel box-girder, H profile steel connecting cross beam and platform board, therefore after each component completes, is spelled
Dress.It in the assembled build process of spiral stairs, if carrying out assembly at the scene, not only bothered, but also the waste construction time, and influenced to apply
Work progress.Therefore, it is attempted to carry out assembly in factory, but carries out assembly in factory, it is also very troublesome, and cannot effectively protect
The accuracy of assembly and the goodness of fit with site environment and design requirement are demonstrate,proved, is brought greatly not to the construction of spiral stairs
Just.
Summary of the invention
In view of the above shortcomings of the prior art, it is an object of the invention to solve steel structure stairway segmented assembly fiber crops
Tired, accuracy is low, and the problem with site environment and design requirement goodness of fit difference provides a kind of steel construction spiral stairs segmented assembly
Method can make the assembly of spiral stairs more convenient, more efficient, and effectively improve assembled accuracy, at the same with it is existing
Field environment and the design requirement goodness of fit are higher, to greatly improve the in-site installation construction efficiency of steel construction spiral stairs.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that such: a kind of steel construction spiral stairs
Segmented assembly method, characterized by the following steps:
1) by floor leveling in factory, and the ground line-transect in the ratio drafting steel construction spiral stairs of 1:1 on ground on the ground,
The ground line-transect includes the ground line-transect of rest steel platform and the ground line-transect of bench steel box-girder and marks control point；
2) it makes on the ground and assembling support is installed；The assembling support includes four columns, and the four columns are in rectangular
Shape distribution, wherein four columns are located at the ground line-transect two sides of rest steel platform；It is horizontal solid respectively in the lower end of four columns
Surely there is a mounting plate, which is fixedly connected with the ground by bar planting bolt；It is set respectively between the top of two adjacent upright
There is a upper beam, a lower beam is respectively equipped between the lower part of two adjacent upright；It is equipped in the upper horizontal of upper beam several
Support beam, the length direction of the support beam is consistent with width direction rectangular where four columns, the support beam
Both ends be connected respectively with upper beam；A platform steel plate is equipped with above support beam, which is located at rest steel
Right above the ground line-transect of platform steel box-girder, and it is fixedly connected with each support beam；Several load bearing beams are equipped with above platform steel plate,
The load bearing beam is parallel to each other, and its length direction is vertical with the length direction of support beam；
3) the ground line-transect of rest steel platform steel box-girder is drawn on platform steel plate and marks control point；
4) rest steel platform steel box-girder is successively lifted on platform steel plate using crane, adjusts its installation site, its mark of repetition measurement
Rest steel platform steel box-girder is attached after qualified by connecting cross beam, is assembled by height；
5) interim junction steel plate is made, one section of the downside which is connected with rest steel platform is plane, with
One section connected of downside of bench steel box-girder is cambered surface, and the radian of the cambered surface is consistent with the radian of bench steel box-girder；
6) several interim junction steel plates are welded in the upside of one end that bench steel box-girder is connected with rest steel platform steel box-girder,
In, the cambered surface of interim junction steel plate is bonded with bench steel box-girder, and the spacing between interim junction steel plate is 40-60mm；
7) bench steel box-girder is lifted into installation site using crane, by bench steel box-girder one end and is put down by interim junction steel plate
Platform steel box-girder is docked by control point, while the other end of bench steel box-girder is placed on ground and is overlapped with ground line-transect；
By bench steel box-girder line-transect after the assay was approved, by interim junction steel plate and rest steel platform steel box-girder by way of spot welding
Welding, meanwhile, bench steel box-girder is attached by connecting cross beam, is assembled.
Further, in step 2, the three-dimensional that steel construction spiral stairs are accurately established in 1:1 setting-out is carried out using BIM technology
Model generates the local coordinate and three-dimensional localization size of node；The minimum altitude H of the platform steel plateminFor under rest steel platform
Surface is to the vertical range between the upper surface or ground of the adjacent rest steel platform of underface.
Further, rest steel platform steel box-girder and ladder in step 6), in BIM model, to steel construction spiral stairs
Section steel box-girder docking location establishes butted line respectively, and the butted line is plotted in rest steel platform steel box-girder and bench steel box-girder
On；The interim junction steel plate is overlapped with the position of the butted line of bench steel box-girder.
Further, the rest steel platform steel box-girder includes left side rest steel platform steel box-girder, interval steel platform
Steel box-girder and right side rest steel platform steel box-girder, corresponding, bench steel box-girder includes left side bench steel box-girder, middle part bench steel
Box beam and right side bench steel box-girder；Wherein, left side bench steel box-girder, middle part bench steel box-girder and right side bench steel box-girder point
It Dui Ying not be with left side rest steel platform steel box-girder, interval steel platform steel box-girder and right side rest steel platform steel box-girder phase
Even.
Further, the column, upper beam, lower beam, support beam, load bearing beam and connecting cross beam are all made of H-type
Steel, and weld together between upper beam and column and between lower beam and column；The platform steel plate and support beam
Top flange plate weld together.
Further, on upper beam, the position at corresponding each support beam both ends is respectively welded two screw rods, and two screw rods
It is vertically arranged, and is distributed in the web two sides of carrying two；On the bottom wing listrium of support beam, the position of corresponding screw rod is offered
Screw hole, the screw rod pass through the screw hole of corresponding position；Adjusting nut and locking nut are equipped on screw rod, wherein the adjusting
Nut is located at the downside of the bottom wing listrium of support beam, and the locking nut is located at the upside of the bottom wing listrium of support beam, leads to
Support beam is locked by the cooperation for crossing locking nut and adjusting nut.
Further, the distance between the upper beam and the upper end of the column are 1-1.5m.
Compared with prior art, the present invention has the advantage that
1, the installation environment of live steel construction spiral stairs can be simulated by using assembling support, in this way, carrying out segmentation spelling
During dress, enable to the assembly of bench and rest steel platform more convenient, and position it is more accurate, production precision more
It is high；Also, make spiral stairs bench and rest steel platform and site environment and the design requirement goodness of fit it is higher, to mention significantly
The in-site installation construction efficiency of high steel construction spiral stairs.
2, butted line is established to the rest steel platform steel box-girder of steel construction spiral stairs and bench steel box-girder docking location, faces
When junction steel plate serve not only as the control panel of docking location and precision, while also having the function of temporary support.
3, there is spiral characteristic using steel construction spiral stairs, is circle in the perspective view of horizontal plane, with ground
For horizontal plane, projection line is drawn on the ground, in-site installation height is simulated with assembling support, passes through absolute altitude and projection line traffic control
The splicing accuracy of steel construction spiral stairs, raises labour productivity.
4, entire rotation can be completed by a measure bracket assembly by the support beam steel and load bearing beam of assembling support
Turn the assembly of stair；By adjusting the height of support beam and replacing the load bearing beam of different height, a bracket can be passed through
Complete the assembly of entire spiral stairs；So that bracket is more adaptable；Use cost can be substantially reduced, energy-saving ring is reached
The purpose of guarantor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of assembling support.
Fig. 2 is the structural schematic diagram after the installation of rest steel platform steel box-girder.
Fig. 3 is the structural schematic diagram after the installation of bench steel box-girder.
Fig. 4 is the attachment structure schematic diagram of rest steel platform steel box-girder and bench steel box-girder.
In figure: 1-column, 2-mounting plates, 3-upper beams, 4-lower beams, 5-support beams, 6-platform steel plates,
7-load bearing beams, 8-rest steel platform steel box-girders, 9-connecting cross beams, 10-bench steel box-girders, 11-interim junction steel plates.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment: referring to Fig. 1 to Fig. 4, a kind of steel construction spiral stairs segmented assembly method includes the following steps:
1) by floor leveling in factory, and the ground line-transect in the ratio drafting steel construction spiral stairs of 1:1 on ground on the ground,
The ground line-transect includes the ground line-transect of rest steel platform and the ground line-transect of bench steel box-girder 10 and marks control point.
2) it makes on the ground and assembling support is installed.The assembling support includes four columns 1, the four columns 1
It is rectangle distribution, wherein four columns 1 are located at the ground line-transect two sides of rest steel platform；In the lower end of four columns 1 point
It is not horizontally fixed with a mounting plate 2, which is fixedly connected with the ground by bar planting bolt.On the top of two adjacent upright 1
Between be respectively equipped with a upper beam 3, a lower beam 4 is respectively equipped between the lower part of two adjacent upright 1.In the upper of upper beam 3
Fang Shuiping is equipped with several support beams 5, rectangular width side where the length direction and four columns 1 of the support beam 5
To consistent, the both ends of the support beam 5 are connected with upper beam 3 respectively.It is equipped with a platform steel plate 6 in the top of support beam 5,
The platform steel plate 6 is located at right above the ground line-transect of rest steel platform steel box-girder 8, and is fixedly connected with each support beam 5；In platform
Several load bearing beams 7 are equipped with above steel plate 6, the load bearing beam 7 is parallel to each other, and the length side of its length direction and support beam 5
To vertical.In the production process, the threedimensional model that steel construction spiral stairs are accurately established in 1:1 setting-out is carried out using BIM technology, it is raw
At the local coordinate and three-dimensional localization size of node；The minimum altitude H of the platform steel plate 6minIt is arrived for rest steel platform lower surface
Vertical range between the upper surface or ground of the adjacent rest steel platform of underface.Between 1 upper end of the upper beam 3 and column
Distance be 1-1.5m；In this way, the construction of the assembly to rest steel platform of being more convenient for, and the positioning to rest steel platform.
3) the ground line-transect of rest steel platform steel box-girder 8 is drawn on platform steel plate 6 and marks control point.
4) rest steel platform steel box-girder 8 is successively lifted on platform steel plate 6 using crane, adjusts its installation site, it is multiple
Its absolute altitude is surveyed, rest steel platform steel box-girder 8 is attached, is assembled by connecting cross beam 9 after qualified.
5) interim junction steel plate 11 is made, one section of the downside which is connected with rest steel platform is
Plane, one section of downside being connected with bench steel box-girder 10 are cambered surface, and the arc of the radian of the cambered surface and bench steel box-girder 10
Degree is consistent.
6) several interim connection steel are welded in the upside of one end that bench steel box-girder 10 is connected with rest steel platform steel box-girder 8
Plate 11, wherein the cambered surface of interim junction steel plate 11 is bonded with bench steel box-girder 10, and the spacing between interim junction steel plate 11 is
40—60mm.During practice of construction, in BIM model, to the rest steel platform steel box-girder 8 and bench of steel construction spiral stairs
10 docking location of steel box-girder establishes butted line respectively, and the butted line is plotted in rest steel platform steel box-girder 8 and bench steel case
On beam 10；The interim junction steel plate 11 is overlapped with the position of the butted line of bench steel box-girder 10.
7) bench steel box-girder 10 is lifted into installation site using crane, by interim junction steel plate 11 by bench steel box-girder
10 one end are docked with platform steel box-girder by control point, at the same by the other end of bench steel box-girder 10 be placed on ground and with
Ground line-transect is overlapped.After the assay was approved by 10 ground line-transect of bench steel box-girder, by way of spot welding by interim junction steel plate 11 with
Rest steel platform steel box-girder 8 welds, meanwhile, bench steel box-girder 10 is attached by connecting cross beam 9, is assembled.
As an implementation, in the present solution, the rest steel platform steel box-girder 8 includes left side rest steel platform steel case
Beam 8, interval steel platform steel box-girder 8 and right side rest steel platform steel box-girder 8, corresponding, bench steel box-girder 10 includes a left side
Side bench steel box-girder 10, middle part bench steel box-girder 10 and right side bench steel box-girder 10；Wherein, left side bench steel box-girder 10, in
Portion's bench steel box-girder 10 and right side bench steel box-girder 10 respectively correspond and left side rest steel platform steel box-girder 8, interval steel
Platform steel box-girder 8 and right side rest steel platform steel box-girder 8 are connected.
For the stability for guaranteeing entire bracket, the column 1, upper beam 3, lower beam 4, support beam 5, load bearing beam 7 with
And connecting cross beam 9 is all made of H profile steel, and is welded on one between upper beam 3 and column 1 and between lower beam 4 and column 1
It rises；The platform steel plate 6 and the top flange plate of support beam 5 weld together.
On upper beam 3, the position at corresponding each 5 both ends of support beam is respectively welded two screw rods, and two screw rods are set vertically
It sets, and is distributed in the web two sides of carrying two.On the bottom wing listrium of support beam 5, the position of corresponding screw rod offers screw hole,
The screw rod passes through the screw hole of corresponding position.Adjusting nut and locking nut are equipped on screw rod, wherein the adjusting nut position
In the downside of the bottom wing listrium of support beam 5, the locking nut is located at the upside of the bottom wing listrium of support beam 5, passes through lock
Support beam 5 is locked by the cooperation of tight nut and adjusting nut.In this way, passing through screw rod between support beam 5 and upper beam 3
It is connected with the cooperation for adjusting bolt and clamping screw, in this way, adjustment adjusts the position of bolt as needed, then passes through locking screw
Bolt is locked, it will be able to be finely adjusted to the mounting height of rest steel platform, so as to better ensure that rest steel
Assembling accuracy between platform and bench greatly improves the quality of the segmental machining spiral stairs in factory.
Finally, it should be noted that technical side the above examples are only used to illustrate the technical scheme of the present invention and are not limiting
Case, those skilled in the art should understand that, modification or equivalent replacement of the technical solution of the present invention are made for those, and
The objective and range for not departing from the technical program, are intended to be within the scope of the claims of the invention.
Claims (7)
1. a kind of steel construction spiral stairs segmented assembly method, characterized by the following steps:
1) by floor leveling in factory, and the ground line-transect in the ratio drafting steel construction spiral stairs of 1:1 on ground on the ground,
The ground line-transect includes the ground line-transect of rest steel platform and the ground line-transect of bench steel box-girder and marks control point；
2) it makes on the ground and assembling support is installed；The assembling support includes four columns, and the four columns are in rectangular
Shape distribution, wherein four columns are located at the ground line-transect two sides of rest steel platform；It is horizontal solid respectively in the lower end of four columns
Surely there is a mounting plate, which is fixedly connected with the ground by bar planting bolt；It is set respectively between the top of two adjacent upright
There is a upper beam, a lower beam is respectively equipped between the lower part of two adjacent upright；It is equipped in the upper horizontal of upper beam several
Support beam, the length direction of the support beam is consistent with width direction rectangular where four columns, the support beam
Both ends be connected respectively with upper beam；A platform steel plate is equipped with above support beam, which is located at rest steel
Right above the ground line-transect of platform steel box-girder, and it is fixedly connected with each support beam；Several load bearing beams are equipped with above platform steel plate,
The load bearing beam is parallel to each other, and its length direction is vertical with the length direction of support beam；
3) the ground line-transect of rest steel platform steel box-girder is drawn on platform steel plate and marks control point；
4) rest steel platform steel box-girder is successively lifted on platform steel plate using crane, adjusts its installation site, its mark of repetition measurement
Rest steel platform steel box-girder is attached after qualified by connecting cross beam, is assembled by height；
5) interim junction steel plate is made, one section of the downside which is connected with rest steel platform is plane, with
One section connected of downside of bench steel box-girder is cambered surface, and the radian of the cambered surface is consistent with the radian of bench steel box-girder；
6) several interim junction steel plates are welded in the upside of one end that bench steel box-girder is connected with rest steel platform steel box-girder,
In, the cambered surface of interim junction steel plate is bonded with bench steel box-girder, and the spacing between interim junction steel plate is 40-60mm；
7) bench steel box-girder is lifted into installation site using crane, by bench steel box-girder one end and is put down by interim junction steel plate
Platform steel box-girder is docked by control point, while the other end of bench steel box-girder is placed on ground and is overlapped with ground line-transect；
By bench steel box-girder line-transect after the assay was approved, by interim junction steel plate and rest steel platform steel box-girder by way of spot welding
Welding, meanwhile, bench steel box-girder is attached by connecting cross beam, is assembled.
2. a kind of steel construction spiral stairs segmented assembly method according to claim 1, it is characterised in that: in step 2,
The threedimensional model that steel construction spiral stairs are accurately established in 1:1 setting-out is carried out using BIM technology, generates the local coordinate and three of node
Tie up location dimension；The minimum altitude H of the platform steel plateminIt is flat for the adjacent rest steel of rest steel platform lower surface to underface
Vertical range between the upper surface or ground of platform.
3. a kind of steel construction spiral stairs segmented assembly method according to claim 1, it is characterised in that: in step 6),
In BIM model, the rest steel platform steel box-girders of steel construction spiral stairs and bench steel box-girder docking location are established pair respectively
Wiring, and the butted line is plotted on rest steel platform steel box-girder and bench steel box-girder；The interim junction steel plate and bench
The position of the butted line of steel box-girder is overlapped.
4. a kind of steel construction spiral stairs segmented assembly method according to claim 1, it is characterised in that: the rest steel
Platform steel box-girder includes left side rest steel platform steel box-girder, interval steel platform steel box-girder and right side rest steel platform steel case
Beam, corresponding, bench steel box-girder includes left side bench steel box-girder, middle part bench steel box-girder and right side bench steel box-girder；Wherein,
Left side bench steel box-girder, middle part bench steel box-girder and right side bench steel box-girder respectively correspond and left side rest steel platform steel case
Beam, interval steel platform steel box-girder and right side rest steel platform steel box-girder are connected.
5. a kind of steel construction spiral stairs segmented assembly method according to claim 1, it is characterised in that: the column,
Upper beam, lower beam, support beam, load bearing beam and connecting cross beam are all made of H profile steel, and between upper beam and column and under
Weld together between crossbeam and column；The platform steel plate and the top flange plate of support beam weld together.
6. a kind of steel construction spiral stairs segmented assembly method according to claim 5, it is characterised in that: in upper beam
On, the position at corresponding each support beam both ends is respectively welded two screw rods, and two screw rods are vertically arranged, and is distributed in carrying two
Web two sides；On the bottom wing listrium of support beam, the position of corresponding screw rod offers screw hole, and the screw rod passes through corresponding position
Screw hole；Adjusting nut and locking nut are equipped on screw rod, wherein the adjusting nut is located at the bottom wing listrium of support beam
Downside, the locking nut is located at the upside of the bottom wing listrium of support beam, passes through the cooperation of locking nut and adjusting nut
Support beam is locked.
7. a kind of steel construction spiral stairs segmented assembly method according to claim 1, it is characterised in that: the upper beam
The distance between the upper end of the column is 1-1.5m.
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| CN109740218A (en) * | 2018-12-25 | 2019-05-10 | 三箭建设工程集团有限公司 | A kind of steel construction integral hoisting system based on BIM |
| CN110605531A (en) * | 2019-07-31 | 2019-12-24 | 共享钢构有限责任公司 | Processing method of spiral stair with double-spiral box-shaped steel structure |
| CN112983017A (en) * | 2021-03-15 | 2021-06-18 | 中建八局第二建设有限公司 | Construction method of suspension type prestress spiral steel structure |
| CN114005643A (en) * | 2021-10-25 | 2022-02-01 | 中国十九冶集团有限公司 | Interim supporting platform of transformer |
| CN115370011A (en) * | 2022-09-20 | 2022-11-22 | 中建五局华东建设有限公司 | Construction and installation process of large-span overweight special-shaped arch truss |
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Application publication date: 20181221 |