CN113833312A - Combined temporary construction stair used in assembly type stair - Google Patents
Combined temporary construction stair used in assembly type stair Download PDFInfo
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- CN113833312A CN113833312A CN202110967772.2A CN202110967772A CN113833312A CN 113833312 A CN113833312 A CN 113833312A CN 202110967772 A CN202110967772 A CN 202110967772A CN 113833312 A CN113833312 A CN 113833312A
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- truss
- stair
- temporary construction
- stairway
- steel pipes
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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
- E04G27/00—Temporary arrangements for giving access from one level to another for men or vehicles, e.g. steps, ramps
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a combined temporary construction stair used in an assembly type stair, which is a temporary stair arranged in a building staircase and used for communicating the upper working surface and the lower working surface of the building. The temporary construction stair is formed into a main frame structure by welding and connecting an outer side truss, a middle truss and an inner side truss through square steel pipes. The combined steel truss construction stair is completely manufactured on the ground by welding, and is hoisted by the tower crane after the welding is finished, so that the construction is convenient, safe and quick. The combined steel truss construction stair is divided into two parts, wherein the upper part is used for erecting the temporary construction stair, the lower part is used for adjusting the platform in a shaping mode, the foundation of the temporary construction stair is adjusted to the same plane, the influence on the overall rigidity when the temporary construction stair is hoisted and installed and detached is further reduced, and the safety and the stability of the structure are improved.
Description
Technical Field
The invention relates to a combined temporary construction stair used in an assembly type stair, and belongs to the technical field of assembly type stairs of high-rise building structures.
Background
In the construction of the high-rise building structure adopting the fabricated stairway, the installation of the prefabricated stairway lags behind the construction of the corresponding floor, because the template of the stair rest platform can be dismantled after the concrete strength meets the design and specification requirements, and then the prefabricated stairway is installed. The template is not dismantled, and prefabricated staircase is not installed, leads to directly reaching the uppermost layer construction operation floor through prefabricated staircase like this. At present, the traditional solution is that a group of temporary support frames are directly erected by using fastener type scaffold pipes, and scaffold boards are temporarily fixed so that workers can walk up and down in the construction process, the frame body is extremely unstable and has certain potential safety hazards of collapse, meanwhile, after a current layer is demolished, local fasteners, steel pipes and scaffold boards are still needed to be dismantled, and after the current layer is demolished, a new support frame body is erected again, which wastes time and labor.
The dangerous factor that traditional temporary fastener steel pipe scaffold probably takes place when setting up is as follows:
(1) when the temporary fastener scaffold is erected, the overall instability is possibly caused by local instability, so that the steel pipe is deformed, the fastener is burst, the scaffold board is inclined, and the collapse accident is caused.
(2) The objects caused by the falling of the scaffold board, the fastener, the steel pipe and the like are hit.
(3) Falling from a high place caused by insufficient protection.
(4) Mechanical damage due to irregular projections of the scaffold.
(5) The installation needs to be dismantled manually, which is labor-consuming and time-consuming.
Disclosure of Invention
Aiming at the technical problems in the prior art, the technical scheme adopted by the invention is that the combined temporary construction stair used in the fabricated stair is placed in a building staircase and is used for communicating the upper working surface and the lower working surface of the building, and the stair main frame is formed by welding and connecting a square steel pipe and channel steel.
The combined temporary construction stair is characterized in that the outer side truss, the middle truss and the inner side truss are connected through square steel tubes in a welding mode to form a main frame structure. The main frame structure is sequentially provided with U-shaped channel steels in an inverted-buckling welding mode to serve as steps.
The outer side truss, the middle truss and the inner side truss are sequentially arranged in parallel, and the outer side truss, the middle truss and the inner side truss are all composed of thick steel pipes and thin steel pipes.
Thick steel pipes are arranged on the two sides and the bottom of the outer truss, the three thick steel pipes are welded and fixed to form a U-shaped structure, and the top of the outer truss is welded with a thin steel pipe; and a thick steel pipe and a thin steel pipe which are transversely connected are also arranged between the thick steel pipes on the two sides of the outer truss.
The two sides and the bottom of the middle truss are respectively provided with a thick steel pipe, the three thick steel pipes are welded and fixed to form a U-shaped structure, and thin steel pipes which are connected end to end in an inclined mode in sequence are further arranged between the thick steel pipes on the two sides of the middle truss.
Two sides of the inner side truss are provided with thick steel pipes, and two thick steel pipes are vertically welded through the other two thick steel pipes to form a double-I-shaped supporting structure; an oblique thin steel pipe is arranged in the double-I-shaped supporting structure.
The installation of combination formula temporary construction stair fix on the setting formula adjustment platform, setting formula adjustment platform is according to on-the-spot elevation adjustment position, makes the bottom and the setting formula adjustment platform of combination formula temporary construction stair at the coplanar.
The combined steel truss construction stair is completely manufactured on the ground by welding, and is hoisted by the tower crane after the welding is finished, so that the construction is convenient, safe and quick. The combined steel truss construction stair is characterized in that an outer side truss, a middle truss and an inner side truss are connected through 0.74m square steel pipes in a welding mode to form a main frame structure. The lower part of the combined steel truss construction stair is a shaping type adjusting platform, the foundation of the temporary construction stair is adjusted to the same plane, the influence on the overall rigidity when the temporary construction stair is hoisted, installed and disassembled is further reduced, and the safety and the stability of the structure are improved.
Drawings
Fig. 1-5 are schematic diagrams of temporary steel truss construction stairs with square steel pipes welded in a main frame form. Wherein, fig. 1 is a drawing of an outer side truss, fig. 2 is a drawing of a middle truss, fig. 3 is a drawing of an inner side truss, fig. 4 is a side view of the combined temporary construction stair, and fig. 5 is another side view of the combined temporary construction stair.
In the figure: 1. a coarse steel pipe; 2. a thin steel tube.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Steel truss construction stair No. 1 (outside truss), No. 2 (middle part truss), No. 3 truss (inboard truss) through square pipe and channel-section steel welded connection, the position is adjusted according to on-the-spot elevation to lower part design adjustment platform before fixed, makes construction stair tip on the coplanar to construction stair's structural stability has been improved.
Through improving the structure combination form of interim construction stair, reduce the influence to its bulk rigidity when hoist and mount are installed and are torn open, increase the stability of structure.
Through improving the structure combination form of interim construction stair, construction convenience is swift, utilizes the tower crane directly to lift by crane, need not to demolish, has reduced the repeated installation of fastener steel pipe, scaffold board and has demolishd the work, has reduced workman work load.
The combined steel truss construction stair is simple to combine and also belongs to a temporary assembly type, is simple to operate, and can avoid the occurrence of dangerous hidden dangers such as object striking, high falling and mechanical injury caused by the erection of the support frame.
The utility model provides an utilize square steel pipe to be interim steel truss construction stair of main frame form welded which characterized in that: the stair main frame is formed by welding and connecting square steel pipes and channel steel.
(1) The main materials are as follows:
the rough steel pipe 1 is a galvanized square steel pipe with lengths of 6.82m, 4.00m, 2.5m, 2.9m and 0.74 m;
the thin steel pipe is a 40 × 2.2 galvanized square steel pipe with the length specification of 2.67m and 2.3m
U-shaped channel steel, electric welding machine, welding rod and other materials
(2) Main structure
The temporary construction stair is formed by welding and connecting an outer side truss, a middle truss and an inner side truss through 0.74m square steel pipes to form a main frame structure.
According to the requirements of the current construction process, the trusses No. 1, No. 2 and No. 3 of the combined steel truss construction stair are connected with the channel steel in a welding mode through square pipes, and the position of the lower shaping type adjusting platform can be adjusted according to the on-site elevation before fixing, so that the end parts of the construction stair are on the same plane, and the structural stability of the construction stair is improved.
Compared with the prior art, the invention has the following technical effects:
compared with the traditional staircase fastener, steel pipe and scaffold pipe support frame, the temporary staircase provided by the invention can reduce the safety risk factors in the building and using processes of the traditional fastener steel pipe scaffold, and is simple, feasible, safe and reliable, so as to solve the problem of going up and down a working surface of a worker and simultaneously fill a project safety management system.
Through improving the structure combination form of interim construction stair, reduce the influence to its bulk rigidity when hoist and mount are installed and are torn open, increase the stability of structure.
Through improving the structure combination form of interim construction stair, construction convenience is swift, utilizes the tower crane directly to lift by crane, need not to demolish, has reduced the repeated installation of fastener steel pipe, scaffold board and has demolishd the work, has reduced workman work load.
Novel combination formula steel truss construction stair combination is simple, also belongs to interim assembled simultaneously, and easy operation can avoid striking because of the object that sets up the support frame and produce, dangerous hidden danger such as eminence falls, mechanical injury takes place.
The combined steel truss construction stair is completely manufactured on the ground by welding, and is hoisted by the tower crane after the welding is finished, so that the construction is convenient, safe and quick. The combined steel truss construction stair is characterized in that an outer side truss, a middle truss and an inner side truss are connected through 0.74m square steel pipes in a welding mode to form a main frame structure. The combined steel truss construction stair is divided into two parts, wherein the upper part is used for erecting the temporary construction stair, the lower part is used for adjusting the platform in a shaping mode, the foundation of the temporary construction stair is adjusted to the same plane, the influence on the overall rigidity when the temporary construction stair is hoisted and installed and detached is further reduced, and the safety and the stability of the structure are improved.
Claims (9)
1. The utility model provides a combination formula temporary construction stair that uses in assembled stair which characterized in that: the stair main frame is formed by welding and connecting a square steel pipe and channel steel;
the combined temporary construction stair is characterized in that an outer side truss, a middle truss and an inner side truss are connected through square steel pipes in a welding mode to form a main frame structure; the main frame structure is sequentially provided with U-shaped channel steels in an inverted-buckling welding mode to serve as steps.
2. The modular temporary construction stairway for use in an assembly stairway as claimed in claim 1, wherein: the outer side truss, the middle truss and the inner side truss are sequentially arranged in parallel, and the outer side truss, the middle truss and the inner side truss are all composed of thick steel pipes and thin steel pipes.
3. The modular temporary construction stairway for use in an assembly stairway as claimed in claim 1, wherein: thick steel pipes are arranged on the two sides and the bottom of the outer truss, the three thick steel pipes are welded and fixed to form a U-shaped structure, and the top of the outer truss is welded with a thin steel pipe; and a thick steel pipe and a thin steel pipe which are transversely connected are also arranged between the thick steel pipes on the two sides of the outer truss.
4. The modular temporary construction stairway for use in an assembly stairway as claimed in claim 1, wherein: the two sides and the bottom of the middle truss are respectively provided with a thick steel pipe, the three thick steel pipes are welded and fixed to form a U-shaped structure, and thin steel pipes which are connected end to end in an inclined mode in sequence are further arranged between the thick steel pipes on the two sides of the middle truss.
5. The modular temporary construction stairway for use in an assembly stairway as claimed in claim 1, wherein: two sides of the inner side truss are provided with thick steel pipes, and two thick steel pipes are vertically welded through the other two thick steel pipes to form a double-I-shaped supporting structure; an oblique thin steel pipe is arranged in the double-I-shaped supporting structure.
6. The modular temporary construction stairway for use in an assembly stairway as claimed in claim 1, wherein: the installation of combination formula temporary construction stair fix on the setting formula adjustment platform, setting formula adjustment platform is according to on-the-spot elevation adjustment position, makes the bottom and the setting formula adjustment platform of combination formula temporary construction stair at the coplanar.
7. The modular temporary construction stairway for use in an assembly stairway as claimed in claim 1, wherein: a combined steel truss construction stair belongs to an assembly structure.
8. The modular temporary construction stairway for use in an assembly stairway as claimed in claim 1, wherein: the construction stairs are completely manufactured on the ground by welding, and are hoisted by a tower crane after the welding is finished.
9. The modular temporary construction stairway for use in an assembly stairway as claimed in claim 1, wherein: the combined steel truss construction stair is divided into two parts, wherein the upper part is used for erecting the temporary construction stair, the lower part is used for adjusting the platform in a shaping mode, the foundation of the temporary construction stair is adjusted to the same plane, the influence on the overall rigidity when the temporary construction stair is hoisted and installed and detached is further reduced, and the safety and the stability of the structure are improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967772.2A CN113833312A (en) | 2021-08-23 | 2021-08-23 | Combined temporary construction stair used in assembly type stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110967772.2A CN113833312A (en) | 2021-08-23 | 2021-08-23 | Combined temporary construction stair used in assembly type stair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113833312A true CN113833312A (en) | 2021-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110967772.2A Pending CN113833312A (en) | 2021-08-23 | 2021-08-23 | Combined temporary construction stair used in assembly type stair |
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| Country | Link |
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| CN (1) | CN113833312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991531A (en) * | 2022-05-30 | 2022-09-02 | 江苏省华建建设股份有限公司 | Temporary stair for prefabricated concrete structure and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004124606A (en) * | 2002-10-04 | 2004-04-22 | Nippon Light Metal Co Ltd | Stairs |
| JP3101002U (en) * | 2003-10-14 | 2004-06-03 | 勝広 上條 | Anti-vibration structure for steel stairs |
| CN203846795U (en) * | 2014-05-16 | 2014-09-24 | 中国建筑一局(集团)有限公司 | Novel construction riding track |
| CN207296479U (en) * | 2017-09-27 | 2018-05-01 | 中国建筑股份有限公司海拓工程分公司 | Steel structure stairway in elevator |
-
2021
- 2021-08-23 CN CN202110967772.2A patent/CN113833312A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004124606A (en) * | 2002-10-04 | 2004-04-22 | Nippon Light Metal Co Ltd | Stairs |
| JP3101002U (en) * | 2003-10-14 | 2004-06-03 | 勝広 上條 | Anti-vibration structure for steel stairs |
| CN203846795U (en) * | 2014-05-16 | 2014-09-24 | 中国建筑一局(集团)有限公司 | Novel construction riding track |
| CN207296479U (en) * | 2017-09-27 | 2018-05-01 | 中国建筑股份有限公司海拓工程分公司 | Steel structure stairway in elevator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991531A (en) * | 2022-05-30 | 2022-09-02 | 江苏省华建建设股份有限公司 | Temporary stair for prefabricated concrete structure and construction method thereof |
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Application publication date: 20211224 |