CN109403640A - A kind of installation method of interior super large list ladder girder cantilever formula rotation steel stair - Google Patents
A kind of installation method of interior super large list ladder girder cantilever formula rotation steel stair Download PDFInfo
- Publication number
- CN109403640A CN109403640A CN201811374750.XA CN201811374750A CN109403640A CN 109403640 A CN109403640 A CN 109403640A CN 201811374750 A CN201811374750 A CN 201811374750A CN 109403640 A CN109403640 A CN 109403640A
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- China
- Prior art keywords
- lifting
- staristep
- spiral stairs
- installation
- place
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Classifications
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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
-
- 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
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention discloses a kind of installation method of indoor super large list ladder girder cantilever formula rotation steel stair, this method carries out in the steps below: built-in fitting is installed during civil construction；On the ground unwrapping wire draw spiral stairs inner circle-line and outer round wires；Build support frame system；Build lifting bracket system；Spiral stairs are segmented by design；Staristep is successively installed from the bottom to top；Measurement correction；Reinforcement of weld；Successively installation is marked time from the bottom to top；Measurement correction；Reinforcement of weld.Present method solves the lifting problems of super large spiral stairs in indoor small space, provide stable temporary support, improve stability, ensure that the installation accuracy of spiral stairs.
Description
Technical field
The present invention relates to technical field of building construction, and in particular to a kind of interior super large list ladder girder cantilever formula rotation steel stair
Installation method.
Background technique
With the continuous development of society and economy spiral stairs are more and more used in construction market.Rotating floor
Ladder is usually that small bore fashioned iron ladder beam is arranged around a single-column arrangement, or in two sides, marks time and is arranged between steel ladder beam.And surpass
Big single terraced cantilevered spiral stairs of beam shape still belong to rare at home, and big section box list ladder beam is rotated by the first floor to three layers, weight
Amount is big and intermediate without upright supports, in one end insertion box beam of marking time, one end overhanging.It is big that this structure type is handsome in appearance
Side, but difficulty of construction is very big, and the interior space is narrow, is not available large lifting equipment, and not only construction is inconvenient, and spiral stairs
Stability during the installation process is not easy to control, and installation accuracy is also difficult to ensure.
Summary of the invention
It is an object of the present invention to overcome defect existing in the prior art, provide it is a kind of safe and reliable, relatively inexpensive,
The installation question that can effectively solve the problem that indoor small space spiral stairs, by providing stable temporary support, raising was installed
Stability in journey guarantees the installation method of indoor super large list ladder girder cantilever formula spiral stairs installation accuracy.
To achieve the above object, the technical scheme is to design a kind of indoor super large list ladder girder cantilever formulas to rotate steel building
The installation method of ladder, described method includes following steps:
S1: during civil construction, built-in fitting is installed according to the design position of spiral stairs, the built-in fitting includes head
Layer built-in fitting and Core Walls Structure built-in fitting；
S2: on the ground of stair installation site, unwrapping wire draw spiral stairs and projection of marking time inner circle-line and outer round wires；
S3: building support frame system near unwrapping wire position, and support frame as described above system includes several support posts, intercolumniation steel
Beam, support bracket, the support post are arranged in the inside of spiral stairs, and the support bracket is according to spiral stairs bench interface
Position arrangement, is equipped with intercolumniation girder steel between support columns；
S4: building lifting bracket system, and the lifting bracket system includes several support posts, promotes girder steel, connection steel
Beam, bearing diagonal, the lifting bracket system are arranged on the outside of spiral stairs, and the promotion girder steel is hung for hanging motor-driven chain hoist
Fill staristep；
S5: spiral stairs are segmented by design, and every section of staristep is projected as half of circular arc line；
S6: by staristep, successively lifting is in place from the bottom to top, wherein first segment bottom is connect with first floor built-in fitting；It is intermediate
Section is supported by round tube and is connect with floor structure, and final stage is connect by steel corbel with floor structure, and end is buried with Core Walls Structure
Part connection.It since final stage staristep is on the outside of lifting bracket system, punches on floor above, branch is set on floor
Support is lifted；Interlude bench is located at lifting position overhead and on-station position overhead using two groups of motor-driven chain hoists, empty
Middle alternately promoted keeps staristep installation in place, and every installation a flight of stairs section welds support bracket to staristep in support frame system
It is fixed temporarily；
S7: line trace correction is installed into staristep using magnetic line of force pendant and total station during lifting is in place；
S8: weld seam is fully welded after lifting is in place, hoisting frame system and support frame system are removed after acceptance(check)；
S9: overhanging step plate is installed from the bottom to top using crane；
S10: line trace correction is installed into what is marked time using magnetic line of force pendant and total station, all components of spiral stairs are all pacified
Install into rear progress integrally measurement correction；
S11: finally, the weld seam marked time is fully welded, the subsequent handlings such as node touch-up paint, finishing coat spraying are carried out after acceptance(check).
For the ease of construction, the security and stability of constructing operation is improved, preferred technical solution is the lifting bracket system
Promotion girder steel in system has two, and promotion girder steel can be moved according to lifting position and on-station position, in every promotion steel
One group of motor-driven chain hoist is set under beam.
For the ease of reducing installation space, it is ensured that safely lift staristep in place, preferred technical solution is in addition, institute
Stating the motor-driven chain hoist in step 6 and alternately being promoted in the sky keeps staristep installation in place, first with the jack above at lifting by stair
Section vertical lifting to certain altitude, and make in place locate top jack be in tensioning state, then in place locate above jack not
It is dynamic, the jack above at lifting is unclamped, staristep is moved to above on-station position with curved path.
Ensure that staristep is accurately installed it is in place, preferred technical solution in addition, the staristep water
Calm down position using the magnetic line of force fall on ground inner circle-line, based on outer circle line traffic control, the absolute altitude of staristep is with total station control
It is main.
The advantages of installation method of super large list ladder girder cantilever formula rotation steel stair in interior of the invention and beneficial effect are:
1, by support frame system, super large list ladder beam stability during the installation process is solved the problems, such as.
2, by hoisting frame system, the installation of super large list ladder girder cantilever formula rotation steel stair in indoor small space is solved
Problem.
3, by the location control of magnetic line of force pendant and total station, the installation accuracy of spiral stairs is improved.
4, the installation method of interior super large list ladder girder cantilever formula rotation steel stair is smaller to site requirements.
Detailed description of the invention
Fig. 1 is the axonometric drawing of spiral stairs in indoor super large list ladder girder cantilever formula rotation steel stair installation method of the invention；
Fig. 2 is that the axis of support frame system in indoor super large list ladder girder cantilever formula rotation steel stair installation method of the invention is surveyed
Figure；
Fig. 3 is that the axis of hoisting frame system in indoor super large list ladder girder cantilever formula rotation steel stair installation method of the invention is surveyed
Figure.
In figure: 1, single terraced beam；2, it marks time；3, first floor built-in fitting；4, Core Walls Structure built-in fitting；5, round tube supports；6, bracket；7,
Support post；8, intercolumniation girder steel；9, bracket is supported；10, motor-driven chain hoist；11, girder steel is promoted；12, girder steel is connected；13, bearing diagonal.
Specific embodiment
With reference to the accompanying drawings and examples, further description of the specific embodiments of the present invention.Following embodiment is only
For clearly illustrating technical solution of the present invention, and not intended to limit the protection scope of the present invention.
As shown in Figures 1 to 3, the present invention is a kind of installation method of 1 rotation steel stair of indoor super large list ladder beam, the method
Include the following steps:
Step 1: installing built-in fitting, the built-in fitting packet according to the design position of spiral stairs during civil construction
Include first floor built-in fitting 3 and Core Walls Structure built-in fitting 4；
Step 2: on the ground of stair installation site, unwrapping wire draws spiral stairs and the inner circle-line for 2 projections of marking time and outer
Round wires；
Step 3: build support frame system near unwrapping wire position, support frame as described above system include several support posts 7,
Intercolumniation girder steel 8, support bracket 9, the support post 7 are arranged in the inside of spiral stairs, and the support bracket 9 is according to rotating floor
Bench interface position arrangement, is equipped with intercolumniation girder steel 8 between support post 7；
Step 4: build lifting bracket system, the lifting bracket system include several support posts 7, promoted girder steel 11,
Girder steel 12, bearing diagonal 13 are connected, the lifting bracket system is arranged on the outside of spiral stairs, and the promotion girder steel is for hanging electricity
Dynamic jack 10, lifting staristep；
Step 5: spiral stairs are segmented by design, every section of staristep is projected as half of round wires；
Step 6: successively lifting is in place from the bottom to top by staristep, wherein first segment bottom is connect with first floor built-in fitting 3；
Interlude is connect by round tube support 5 with floor structure, and final stage is connect by steel corbel 6 with floor structure, end and core
The connection of heart cylinder embedded part.Since final stage staristep is on the outside of lifting bracket system, punch on floor above, on floor
Setting support frame is lifted；Interlude ladder beam is located at lifting position overhead and on-station position using two groups of motor-driven chain hoists 10
Overhead, aerial alternately promoted keep staristep installation in place, and every installation a flight of stairs section welds support bracket 9 in support frame system
Staristep is fixed temporarily, specific practice be in segmentation interface setting support bracket 9, while it is big between the two interfaces
It is about also provided with a bracket 9 at half, plays and stablizes support and adjusting corrective action；
Step 7: being installed into line trace school to staristep using magnetic line of force pendant and total station during lifting is in place
Just；
Step 8: weld seam is fully welded after lifting is in place, remove hoisting frame system and support frame system after acceptance(check)；
Step 9: installing overhanging step plate 2 from the bottom to top using crane；
Step 10: using the magnetic line of force pendant and total station to mark time 2 be installed into line trace correction, all components of spiral stairs
Whole measurement correction is carried out after being all installed；
Step 11: it is subsequent to carry out node touch-up paint, finishing coat spraying etc. after acceptance(check) finally, 2 weld seam of marking time is fully welded
Process.
For the ease of construction, the security and stability of constructing operation is improved, the preferred embodiment of the invention is the promotion
Promotion girder steel 11 in support system has two, and promotion girder steel 11 can be moved according to lifting position and on-station position,
Every promotion girder steel 11 is lower to be arranged one group of motor-driven chain hoist 10.
For the ease of reducing installation space, it is ensured that staristep is safely lifted in place, the preferred embodiment of the invention
Keep staristep installation in place in addition, motor-driven chain hoist 10 in the step 6 is alternately promoted in the sky, first with falling above at lifting
Staristep vertical lifting to certain altitude, and is made the jack for locating top in place be in tensioning state by chain, then above place in place
Jack it is motionless, unclamp the jack above at lifting, staristep is moved to above on-station position with curved path.
It ensures that and accurately installs staristep in place, the preferred embodiment of the invention is in addition, the stair
The horizontal location of section using the magnetic line of force fall on ground inner circle-line, based on outer circle line traffic control, the absolute altitude of staristep is with total station
Based on control.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of installation method of interior super large list ladder girder cantilever formula rotation steel stair, which is characterized in that the method includes such as
Lower step:
S1: during civil construction, built-in fitting is installed according to the design position of spiral stairs, the built-in fitting includes that the first floor is pre-
Embedded part and Core Walls Structure built-in fitting；
S2: on the ground of stair installation site, unwrapping wire draw spiral stairs and projection of marking time inner circle-line and outer round wires；
S3: building support frame system near unwrapping wire position, support frame as described above system include several support posts, intercolumniation girder steel,
Bracket is supported, the support post is arranged in the inside of spiral stairs, and the support bracket is according to spiral stairs bench interface portion
Position arrangement, is equipped with intercolumniation girder steel between support columns；
S4: building lifting bracket system, and the lifting bracket system includes several support posts, promotes girder steel, connect girder steel, is oblique
Support, the lifting bracket system are arranged on the outside of spiral stairs, and the promotion girder steel is for hanging motor-driven chain hoist, lifting stair
Section；
S5: spiral stairs are segmented by design, and every section of staristep is projected as half of round wires；
S6: by staristep, successively lifting is in place from the bottom to top, wherein first segment bottom is connect with first floor built-in fitting；Interlude is logical
It crosses round tube support to connect with floor structure, final stage is connect by steel corbel with floor structure, and end and Core Walls Structure embedded part connect
It connects.Since final stage staristep is on the outside of lifting bracket system, punches on floor above, support frame is set on floor
It is lifted；Interlude bench is located at lifting position overhead and on-station position overhead using two groups of motor-driven chain hoists, aerial to hand over
Keep staristep installation in place for promotion, every installation a flight of stairs section is welded support bracket in support frame system and carried out to staristep
It is fixed temporarily；
S7: line trace correction is installed into staristep using magnetic line of force pendant and total station during lifting is in place；
S8: weld seam is fully welded after lifting is in place, hoisting frame system and support frame system are removed after acceptance(check)；
S9: overhanging step plate is installed from the bottom to top using crane；
S10: line trace correction is installed into what is marked time using magnetic line of force pendant and total station, all components of spiral stairs all install
At rear progress integrally measurement correction；
S11: finally, the weld seam marked time is fully welded, the subsequent handlings such as node touch-up paint, finishing coat spraying are carried out after acceptance(check).
2. the installation method of super large list ladder girder cantilever formula rotation steel stair in interior as described in claim 1, which is characterized in that institute
Stating the promotion girder steel in lifting bracket system has two, and promotion girder steel can be moved according to lifting position and on-station position,
One group of motor-driven chain hoist is set under every promotion girder steel.
3. the installation method of super large list ladder girder cantilever formula rotation steel stair in interior as described in claim 1, which is characterized in that institute
Stating the motor-driven chain hoist in step 6 and alternately being promoted in the sky keeps staristep installation in place, first will with the motor-driven chain hoist above at lifting
Staristep vertical lifting makes the motor-driven chain hoist for locating top in place be in tensioning state to certain altitude, then place top in place
Motor-driven chain hoist it is motionless, unclamp the motor-driven chain hoist above at lifting, staristep is moved to above on-station position with curved path.
4. the installation method of super large list ladder girder cantilever formula rotation steel stair in interior as described in claim 1, which is characterized in that institute
State the horizontal location of staristep using the magnetic line of force fall on ground inner circle-line, based on outer circle line traffic control, the absolute altitude of staristep with
Based on total station control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374750.XA CN109403640B (en) | 2018-11-19 | 2018-11-19 | Mounting method of indoor oversized single-ladder-beam cantilever type rotating steel stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374750.XA CN109403640B (en) | 2018-11-19 | 2018-11-19 | Mounting method of indoor oversized single-ladder-beam cantilever type rotating steel stair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109403640A true CN109403640A (en) | 2019-03-01 |
| CN109403640B CN109403640B (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811374750.XA Active CN109403640B (en) | 2018-11-19 | 2018-11-19 | Mounting method of indoor oversized single-ladder-beam cantilever type rotating steel stair |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276391A (en) * | 2020-10-19 | 2021-01-29 | 中国建筑第八工程局有限公司 | Installation method of spiral steel stairs in limited space |
| CN115487965A (en) * | 2022-10-10 | 2022-12-20 | 湖南荣泰机械制造有限公司 | Spraying equipment for steel structure parts of tower crane |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3207259A (en) * | 1963-10-03 | 1965-09-21 | Dave F Gebhart | Spiral stairway |
| FR2562464A1 (en) * | 1984-04-06 | 1985-10-11 | Roger Jean Claude | Wooden spiral staircase and its method of manufacture |
| US5632124A (en) * | 1996-02-06 | 1997-05-27 | Weingarten; David M. | Circular stairway and method of making same |
| DE202006000933U1 (en) * | 2006-01-21 | 2006-04-13 | Oberbörsch GmbH | Space saving spiral staircase has central support spindle and stair treads whereby central support spindle is wounded around a centerline spirally |
| CN2791149Y (en) * | 2005-04-12 | 2006-06-28 | 贵州大学 | Assembled integral stairs |
| CN201176710Y (en) * | 2008-04-16 | 2009-01-07 | 中冶天工建设有限公司 | Shaping template of independent winding stairs detachable in sections |
| CN203213440U (en) * | 2013-04-12 | 2013-09-25 | 上海建工一建集团有限公司 | Multivariate-curve spiral escalator |
| CN106144909A (en) * | 2015-03-30 | 2016-11-23 | 天津市冰科制冷设备有限公司 | A kind of multiplex upending frame |
| CN106760275A (en) * | 2016-11-24 | 2017-05-31 | 中冶建工集团有限公司 | The construction method of stainless steel spiral stairses is installed using sectional shelf-unit |
| CN107138869A (en) * | 2017-06-27 | 2017-09-08 | 中国冶集团有限公司 | A kind of sectional making method for being conducive to deep camber box-type section to rotate steel ladder |
| CN206720205U (en) * | 2017-05-11 | 2017-12-08 | 宁波天鱼机械有限公司 | Bottle ＆ Can conveying worm |
-
2018
- 2018-11-19 CN CN201811374750.XA patent/CN109403640B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3207259A (en) * | 1963-10-03 | 1965-09-21 | Dave F Gebhart | Spiral stairway |
| FR2562464A1 (en) * | 1984-04-06 | 1985-10-11 | Roger Jean Claude | Wooden spiral staircase and its method of manufacture |
| US5632124A (en) * | 1996-02-06 | 1997-05-27 | Weingarten; David M. | Circular stairway and method of making same |
| CN2791149Y (en) * | 2005-04-12 | 2006-06-28 | 贵州大学 | Assembled integral stairs |
| DE202006000933U1 (en) * | 2006-01-21 | 2006-04-13 | Oberbörsch GmbH | Space saving spiral staircase has central support spindle and stair treads whereby central support spindle is wounded around a centerline spirally |
| CN201176710Y (en) * | 2008-04-16 | 2009-01-07 | 中冶天工建设有限公司 | Shaping template of independent winding stairs detachable in sections |
| CN203213440U (en) * | 2013-04-12 | 2013-09-25 | 上海建工一建集团有限公司 | Multivariate-curve spiral escalator |
| CN106144909A (en) * | 2015-03-30 | 2016-11-23 | 天津市冰科制冷设备有限公司 | A kind of multiplex upending frame |
| CN106760275A (en) * | 2016-11-24 | 2017-05-31 | 中冶建工集团有限公司 | The construction method of stainless steel spiral stairses is installed using sectional shelf-unit |
| CN206720205U (en) * | 2017-05-11 | 2017-12-08 | 宁波天鱼机械有限公司 | Bottle ＆ Can conveying worm |
| CN107138869A (en) * | 2017-06-27 | 2017-09-08 | 中国冶集团有限公司 | A kind of sectional making method for being conducive to deep camber box-type section to rotate steel ladder |
Non-Patent Citations (3)
| Title |
|---|
| 张朝，单明，李海涛: "《大曲率双螺旋无支撑箱型钢梯制作关键技术》", 《工业建筑》 * |
| 曾广中: "复杂钢结构旋转梯制作施工技术", 《广东土木与建筑》 * |
| 银良熏: "钢楼梯钢结构施工方案", 《百度文库》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112276391A (en) * | 2020-10-19 | 2021-01-29 | 中国建筑第八工程局有限公司 | Installation method of spiral steel stairs in limited space |
| CN115487965A (en) * | 2022-10-10 | 2022-12-20 | 湖南荣泰机械制造有限公司 | Spraying equipment for steel structure parts of tower crane |
| CN115487965B (en) * | 2022-10-10 | 2023-08-18 | 湖南荣泰机械制造有限公司 | Spraying equipment for tower crane steel structure parts |
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