CN112746713B - Triangular step stair and construction process thereof - Google Patents
Triangular step stair and construction process thereof Download PDFInfo
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- CN112746713B CN112746713B CN202011595753.3A CN202011595753A CN112746713B CN 112746713 B CN112746713 B CN 112746713B CN 202011595753 A CN202011595753 A CN 202011595753A CN 112746713 B CN112746713 B CN 112746713B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
- E04F11/025—Stairways having stringers
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
- E04F11/025—Stairways having stringers
- E04F11/028—Stairways having stringers having a central stringer
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/09—Tread-and-riser units
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/0209—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention discloses a construction process of a triangular step stair, which comprises the following specific steps: splitting the stair tread according to a design drawing, and splitting the stair tread into a stair tread section and a step tread section; the step sections and the tread sections are disassembled; assembling and welding the stair sections; assembling and welding the tread sections; folding and assembling the stair sections and the step sections, and welding the stair sections and the step sections in a single-side fillet welding manner; a stiffening plate is arranged at the notch of the cover plate of the first stepping section, the stiffening plate and the stair sections are fixed in a local penetration single-side welding mode, and the stiffening plate and the stepping sections are fixed in a double-sided fillet welding mode; after the inspection is qualified, sand washing, rust removing and paint spraying can be performed. The stair structure is optimized, the whole construction process is optimized, different welding modes are adopted for welding according to the particularity of the structure, the quality of the whole stair is improved, the structural stability and the bearing performance of the stair are improved, and the use safety is also improved.
Description
Technical Field
The invention belongs to the technical field of steel structure buildings, and particularly relates to a triangular step stair and a construction process thereof.
Background
With the rapid development of social economy, various industries are continuously improved, so is the building industry, the traditional concrete building is influenced by the climate in the construction process, and meanwhile, the traditional concrete building is limited in design and construction, and the shape which is wanted by a designer is difficult to realize.
The Guanze finance center is located in the south of the Guiwan tablet region of the modern service industry cooperative region of the Shenhong Shengang in the front sea of the Nanshan region of Shenzhen city, and the Guihai avenue is adjacent to the Guiwan river in the west and the seaside avenues in the north and the east of the coastal avenue. The steel construction is its major structure, includes: the steel structure comprises core tube section steel columns, outer frame combined section steel columns, floor steel beams of a floor system, circumferential trusses, roof steel structures, section steel, connecting beams, embedded parts, steel stairs and the like, wherein the section steel, the connecting beams, the embedded parts and the steel stairs are arranged in the core tube shear walls.
The stair is important partly in its structure, and current stair are mostly the sole only bottom plate and apron, and structural stability is relatively poor, and its bearing capacity and bearing capacity are general, and most of current a lot of stairs all are the rectangle, not only the appearance comparatively lags behind, and it also can cause the waste of material simultaneously.
And current stair construction process is comparatively loaded down with trivial details, and has some unreasonable places, all adopts a welding mode in whole work progress mostly, will lead to some structural connection welded mode unreasonable like this, influences its structural stability easily and firmly pushes up, therefore its construction quality.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide the triangular stair and the construction process thereof, which not only optimize the structure of the stair, but also optimize the whole construction process, and adopt different welding modes for welding according to the particularity of the structure, thereby greatly improving the construction quality, improving the quality of the whole stair, improving the structural stability and the bearing performance of the stair, and simultaneously improving the use safety.
The technical scheme is as follows: in order to achieve the purpose, the invention provides a triangular step stair and a construction process thereof, wherein the triangular step stair comprises the following steps: the specific construction process is as follows: 1): firstly, splitting the stair tread according to a design drawing, and splitting the stair tread into a stair section and a step section;
2): then, the parts of the stair sections and the stepping sections are disassembled;
3): assembling and welding the stair sections;
4): assembling and welding the tread sections at the same time;
5): the stair sections and the tread sections are preferably folded and assembled and are welded in a single-side fillet welding way;
6): a stiffening plate is arranged at the notch of the cover plate of the first stepping section, the stiffening plate and the stair sections are fixed in a local penetration single-side welding mode, and the stiffening plate and the stepping sections are fixed in a double-sided fillet welding mode;
7): and after the welding is finished, the steel plate is corrected by fire, repaired and polished, and sand washing, rust removing and paint spraying can be performed after the steel plate is qualified. According to the construction process of the triangular stair step, the structure of the stair is optimized, the whole construction process is optimized, different welding modes are adopted for welding according to the particularity of the structure, the construction quality is greatly improved, the quality of the whole stair step is improved, the structural stability and the bearing performance of the stair step are improved, the use safety is improved, and the requirements of construction units and use units are better met.
The concrete construction process of the stair sections in the step 2) comprises the following steps:
1): blanking the ladder beam bottom plate and the ladder beam cover plate together, performing auxiliary assembly welding through the tooling plate, cutting off the tooling plate after the assembly welding is finished, and polishing an exposed welding line to be straight during welding;
2): sequentially mounting the ladder beam web plates on the ladder beam bottom plate, wherein the joint of the first ladder beam web plate and the ladder beam bottom plate is fixed in a double-sided local penetration welding mode, the joint of the second ladder beam web plate and the ladder beam bottom plate is fixed in a full penetration backing plate welding mode, and the groove faces outwards;
3): then, installing an inner baffle between the first ladder beam web and the second ladder beam web, and fixing a joint by adopting a local penetration equal-strength single-side welding mode, wherein the groove is arranged outwards;
4): installing and welding the ladder beam cover plate, wherein the joint of the ladder beam cover plate and the first ladder beam web plate is welded in a local penetration equal-strength single-side welding mode, the joint of the ladder beam cover plate and the first ladder beam web plate is welded in a full penetration backing plate welding mode, and the groove faces outwards;
5): an inner partition plate is arranged on one side, away from the first ladder beam web, of the second ladder beam web, and the connecting position is welded and fixed in a local penetration equal-strength single-side welding mode;
6): assembling and welding a third ladder beam web plate, namely, welding a support plate on the third ladder beam web plate, welding and fixing the third ladder beam web plate in a double-sided fillet welding form, welding a butt welding seam of the support plate in a full-penetration back gouging welding form, welding the folded third ladder beam web plate on a ladder beam main body in a full-penetration backing plate welding form, and welding and fixing the third ladder beam web plate with an outward groove;
7): then the inner partition plate and the ladder beam cover plate are welded and fixed through local penetration equal-strength single-side welding;
8): finally, welding and polishing the handrail limiting plate, namely welding the handrail limiting plate in a local penetration equal-strength single-side welding mode, and welding and fixing the handrail limiting plate and the supporting plate by adopting single-side fillet welding;
9): and the welding seam exposed at the joint is ground.
The specific construction process of the step section in the step 3) is as follows:
1): the butt welding seam of the bottom plate is fixed by adopting a local penetration equal-strength single-side welding mode;
2): then welding the stepping inner partition plate, and welding and fixing the stepping inner partition plate in a double-sided fillet welding manner;
3): welding the sealing plate, and welding the sealing plate with the bottom plate in a local penetration equal-strength single-side welding mode;
4): finally, a butt welding seam of the welding bottom plate adopts a local penetration equal-strength single-side welding mode, and welding current needs to be controlled when the step is folded and is welded; while preventing welding deformation
5): then, mounting the round steel on the cover plate, and fixing the round steel through spot welding;
6): processing the cover plate while constructing, namely enlarging the groove opening and the plug welding hole on the cover plate by 1.7-2.2mm on one side, forming a single-side groove form and pressing the cover plate by 177 degrees for reverse deformation;
7): the cover plate is installed, the mark time cover plate is welded after the inner baffle, the web plate and the mark time cover plate are welded, the cover plate is located at one end of the round steel and is welded through a plug welding mode, one end of the round steel is far away from and is welded through a welding line form pp mode, and the groove is lengthened.
The triangular step stair and the construction process thereof comprise the triangular step stair and the triangular step stair manufactured by the construction process thereof, wherein the triangular step stair is formed by a step plate
The triangular step stair comprises the stair sections and a group of step sections, wherein the step sections are arranged on the stair sections.
The stair section comprises a stair beam bottom plate, stair beam side plates, a group of stair beam web plates and a stair beam cover plate, wherein the stair beam side plates are arranged on one side of the stair beam bottom plate, the stair beam web plates are arranged above the stair beam bottom plate, and the stair beam cover plate is arranged on the stair beam web plates.
The ladder beam web comprises a first web, a second web and a third web, the first web, the second web and the third web are arranged on a ladder beam bottom plate and a ladder beam cover plate, and inner baffles are arranged between the first web and the second web as well as between the second web and the third web;
and one side of the third web plate, which is close to the ladder beam side plate, is provided with a handrail limiting plate, and the handrail limiting plate is connected with the supporting plate.
The fabric treading section comprises a first treading section and a second treading section.
The first stepping section and the second stepping section comprise a bottom plate, a group of stepping inner baffles, a group of sealing plates and a cover plate, wherein the stepping inner baffles are arranged on the bottom plate, the cover plate is arranged above the stepping inner baffles, the sealing plates are arranged between the bottom plate and the cover plate, and round steel is arranged at the connecting part of the cover plate and the bottom plate; a group of notches are formed in one side, located on the cover plate, of the first step section, and the notches are connected with the ladder beam cover plate through a group of stiffening plates; the bottom plate in the second step section is equipped with the extension section, and it is connected with ladder beam apron through extension section.
The stepping inner partition plate is an arch bridge-shaped inner partition plate or a trapezoidal inner partition plate.
The technical scheme shows that the invention has the following beneficial effects:
1. according to the construction process of the triangular stair step, the structure of the stair is optimized, the whole construction process is optimized, different welding modes are adopted for welding according to the particularity of the structure, the construction quality is greatly improved, the quality of the whole stair step is improved, the structural stability and the bearing performance of the stair step are improved, the use safety is improved, and the requirements of construction units and use units are better met.
2. The stable triangular stair provided by the invention comprises: stair section and a set of section of stepping on, the section of stepping on is located the stair section. The stable triangular stair provided by the invention is simple in structure, reasonable in design and easy to produce, the structure of the stair is optimized, the stability and the bearing property of the structure are greatly improved, and the safety of later use is improved, so that the stable triangular stair meets the construction requirement better.
3. According to the invention, the stair section is optimized in structure by arranging the stair beam web and the inner partition plate, so that the structural stability is improved, and the supporting strength of the whole stair section is effectively improved.
4. The step section optimizes the structure of the building, so that the stability of the structure is improved, the attractive appearance is ensured, the design is improved, and the special-shaped requirements and construction requirements of the current building are better met.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the installation of the bottom plate and web of the ladder beam of the present invention;
FIG. 3 is a schematic view of the installation of the armrest limiting plate according to the present invention;
FIG. 4 is a cross-sectional view of a stair section of the present invention;
FIG. 5 is a view of another angle of the present invention;
FIG. 6 is a view of the installation structure of the stepping inner partition board of the present invention;
FIG. 7 is a structural view of another installation structure of the inner stepping partition in the invention.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
Examples
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The triangular step stair and the construction process thereof in the embodiment comprise the following steps: the specific construction process is as follows: 1): firstly, splitting the stair tread according to a design drawing, and splitting the stair tread into a stair tread section 1 and a stair tread section 2;
2): then, the parts of the stair sections 1 and the stepping sections 2 are disassembled;
3): assembling and welding the stair sections 1;
4): meanwhile, the step section 2 is assembled and welded;
5): the stair sections 1 and the tread sections 2 are preferably folded and assembled and are welded in a single-side fillet welding mode;
6): a stiffening plate 242 is arranged at a notch 241 of the cover plate 24 of the first stepping section, the stiffening plate 242 and the stair section 1 are fixed in a local penetration single-side welding mode, and the stiffening plate 242 and the stepping section 2 are fixed in a double-sided fillet welding mode;
7): and after the welding is finished, the steel plate is corrected by fire, repaired and polished, and sand washing, rust removing and paint spraying can be performed after the steel plate is qualified.
The concrete construction process of the stair section 1 in the step 2 in the embodiment is as follows:
1): blanking the ladder beam bottom plate 11 and the ladder beam cover plate 12 together, performing auxiliary assembly welding through a tooling plate, cutting off the tooling plate after the assembly welding is finished, and polishing an exposed welding line to be straight during welding;
2): then, the ladder beam webs 13 are sequentially arranged on the ladder beam bottom plate 11, wherein the joint of the first ladder beam web 131 and the ladder beam bottom plate 11 is fixed in a double-sided local penetration welding mode, the joint of the second ladder beam web 132 and the ladder beam bottom plate 11 is fixed in a full penetration backing plate welding mode, and the groove faces outwards;
3): then, the inner partition 134 is arranged between the first ladder beam web 131 and the second ladder beam web 132, and the joint is fixed by adopting a local penetration equal-strength single-side welding mode, and the groove is arranged outwards;
4): installing and welding the ladder beam cover plate 14, wherein the joint of the ladder beam cover plate 14 and the first ladder beam web 131 is welded in a local penetration equal-strength single-side welding mode, the joint of the ladder beam cover plate 14 and the first ladder beam web 131 is welded in a full penetration backing plate welding mode, and the bevel is outward;
5): an inner partition plate 134 is arranged on one side, far away from the first ladder beam web 131, of the second ladder beam web 132, and the connecting position is welded and fixed in a local penetration equal-strength single-face welding mode;
6): assembling and welding the third ladder beam web 133, namely, welding the supporting plate 136 on the third ladder beam web 133, welding and fixing the third ladder beam web in a double-sided fillet welding form, welding the butt welding seam of the supporting plate 136 in a full-penetration back gouging welding form, welding the folded third ladder beam web 133 on the ladder beam main body in a full-penetration backing plate welding form, and welding and fixing the third ladder beam web with the groove facing outwards;
7): then the inner partition plate 134 and the ladder beam cover plate 14 are welded and fixed through local penetration equal-strength single-side welding;
8): finally, the handrail limiting plate 135 is subjected to welding and polishing, namely the handrail limiting plate 135 is welded in a local penetration equal-strength single-side welding mode, and the handrail limiting plate 135 and the supporting plate 136 are welded and fixed by single-side fillet welding;
9): and the welding seam exposed at the joint is ground.
The concrete construction process of the tread section 2 in the step 3 in the embodiment is as follows:
1): the butt welding seam of the bottom plate 21 is fixed by adopting a local penetration equal-strength single-side welding mode;
2): then welding the stepping inner partition plate 22, and welding and fixing the same in a double-sided fillet welding way;
3): welding the closing plate 23, and welding the closing plate with the bottom plate 21 in a local penetration equal-strength single-side welding mode;
4): finally, the butt welding seam of the welding bottom plate 21 adopts a local penetration equal-strength single-side welding mode, and welding current needs to be controlled when the stepping is closed and the self-welding is carried out; while preventing welding deformation
5): then, the round steel 25 is installed on the cover plate 24 and fixed through spot welding;
6): processing the cover plate 24 during the construction, namely enlarging the groove 241 and the plug welding hole on the cover plate 24 by 1.7-2.2mm at one side, forming a single-side groove form and pressing the cover plate 24 by 177 degrees for reverse deformation;
7): installing cover plate 24, waiting to mark time the apron of marking time again after inner baffle, web and the apron welding of marking time, apron 24 is located round steel 241 one end and welds through the form of plug welding, keeps away from round steel 241 one end and adopts welding seam form pp mode to weld, and mends the length to the groove.
Example 2
The embodiment comprises a triangular stair step and a triangular stair step manufactured by the construction process.
Including in this embodiment stair section 1 and a set of step section 2, step section 2 is located on stair section 1.
In this embodiment, the stair section 1 includes a stair beam bottom plate 11, a stair beam side plate 12, a set of stair beam web 13 and a stair beam cover plate 14, the stair beam side plate 12 is disposed on one side of the stair beam bottom plate 11, the stair beam web 13 is disposed above the stair beam bottom plate 11, and the stair beam cover plate 14 is disposed on the stair beam web 13.
The ladder beam web 13 in this embodiment comprises a first web 131, a second web 132 and a third web 133, the first web 131, the second web 132 and the third web 133 are arranged on the ladder beam bottom plate 11 and the ladder beam cover plate 14, and an inner partition 134 is arranged between the first web 131 and the second web 132 as well as between the second web 132 and the third web 133;
one side of the third web 133 close to the ladder beam side plate 12 is provided with an armrest limiting plate 135, and the armrest limiting plate 135 is connected with the supporting plate 136.
The step cloth section in this embodiment comprises a first step section and a second step section.
In this embodiment, the first stepping section and the second stepping section include a bottom plate 21, a set of stepping inner partition plates 22, a set of sealing plates 23 and a cover plate 24, the stepping inner partition plates 22 are arranged on the bottom plate 21, the cover plate 24 is arranged above the stepping inner partition plates 22, the sealing plates 23 are arranged between the bottom plate 21 and the cover plate 24, and a round steel 25 is arranged at the connection position of the cover plate 24 and the bottom plate 21; a group of notches 241 are formed in one side, located on the cover plate 24, of the first step section, and the notches 241 are connected with the ladder beam cover plate 14 through a group of stiffening plates 242; the bottom plate 21 in the second step section is provided with an extension section 211, which is connected with the ladder beam cover 14 via the extension section 211.
In this embodiment, the stepping inner partition 22 is an arch bridge-shaped inner partition or a trapezoid-shaped inner partition.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (8)
1. A construction process of a triangular step stair is characterized in that: the method comprises the following steps: the specific construction process is as follows: 1): firstly, splitting the stair tread according to a design drawing, and splitting the stair tread into a stair tread section (1) and a stair tread section (2);
2): then, the stair sections (1) and the tread sections (2) are disassembled;
3): assembling and welding the stair sections (1);
4): meanwhile, the step section (2) is assembled and welded;
5): the stair sections (1) and the tread sections (2) are preferably folded and assembled and are welded in a single-side fillet welding way;
6): a stiffening plate (242) is arranged at a notch (241) of a cover plate (24) of the first stepping section, the stiffening plate (242) and the stair section (1) are fixed in a local penetration single-side welding mode, and the stiffening plate (242) and the stepping section (2) are fixed in a double-sided corner welding mode;
7): after the welding is finished, the steel plate is corrected by fire, repaired and polished, and sand washing, rust removing and paint spraying can be carried out after the steel plate is qualified;
the concrete construction process of the stair section (1) in the step 2) is as follows:
1): blanking the ladder beam bottom plate (11) and the ladder beam cover plate (12) together, performing auxiliary assembly welding through a tooling plate, cutting the tooling plate after the assembly welding is finished, and polishing the exposed welding line to be straight during welding;
2): then, the ladder beam webs (13) are sequentially arranged on the ladder beam bottom plate (11), wherein the joint of the first ladder beam web (131) and the ladder beam bottom plate (11) is fixed in a double-sided local penetration welding mode, the joint of the second ladder beam web (132) and the ladder beam bottom plate (11) is fixed in a full penetration backing plate welding mode, and the bevel is outward;
3): then, an inner partition plate (134) is arranged between a first ladder beam web plate (131) and a second ladder beam web plate (132), the joint is fixed in a local penetration equal-strength single-side welding mode, and a groove is arranged outwards;
4): installing and welding the ladder beam cover plate (14), wherein the joint of the ladder beam cover plate (14) and the first ladder beam web (131) is welded in a local penetration equal-strength single-side welding mode, the joint of the ladder beam cover plate (14) and the first ladder beam web (131) is welded in a full-penetration backing plate welding mode, and the bevel is outward;
5): an inner partition plate (134) is arranged on one side, away from the first ladder beam web (131), of the second ladder beam web (132), and the connecting position is welded and fixed in a local penetration equal-strength single-side welding mode;
6): assembling and welding a third ladder beam web plate (133), namely, welding a support plate (136) on the third ladder beam web plate (133) and welding and fixing the third ladder beam web plate in a double-sided fillet welding form, welding a butt welding seam of the support plate (136) in a full penetration back chipping welding form, welding the folded third ladder beam web plate (133) on a ladder beam main body, welding and fixing the third ladder beam web plate in a full penetration backing plate welding form, wherein the groove faces outwards;
7): then the inner partition plate (134) and the ladder beam cover plate (14) are welded and fixed through local penetration equal-strength single-side welding;
8): finally, the handrail limiting plate (135) is welded and polished, namely the handrail limiting plate (135) is welded in a local penetration equal-strength single-side welding mode, and the handrail limiting plate (135) and the supporting plate (136) are welded and fixed by single-side fillet welding;
9): and the welding seam exposed at the joint is ground;
the specific construction process of the step section (2) in the step 3) is as follows:
1): the butt welding seam of the bottom plate (21) is fixed by adopting a local penetration equal-strength single-side welding mode;
2): then welding the stepping inner partition plate (22) and welding and fixing the same in a double-sided fillet weld mode;
3): welding the sealing plate (23) and welding the sealing plate with the bottom plate (21) in a strong single-side welding mode such as local penetration;
4): finally, a butt welding seam of the welding bottom plate (21) adopts a local penetration equal-strength single-side welding mode, and welding current needs to be controlled when the stepping is closed and self-welding is carried out; while preventing welding deformation
5): then, the round steel (25) is arranged on the cover plate (24) and is fixed through spot welding;
6): processing the cover plate (24) during the construction, namely enlarging the groove opening (241) and the plug welding hole on the cover plate (24) by 1.7-2.2mm on one side, forming a single-side groove form and pressing the cover plate (24) at 177 degrees for reverse deformation;
7): installing cover plate (24), waiting to mark time the apron of marking time again after inner baffle, web and the apron welding of marking time, apron (24) are located round steel (241) one end and weld through the form of plug welding, keep away from round steel (241) one end and adopt welding seam form pp mode to weld, and mend the length to the groove.
2. The construction process of the triangular stair steps according to claim 1, wherein the construction process comprises the following steps: comprises a triangular stair step and a triangular stair step manufactured by the construction process.
3. The triangular stairstep of claim 2, wherein: comprises a stair section (1) and a group of step sections (2), wherein the step sections (2) are arranged on the stair section (1).
4. The triangular stairstep of claim 2, wherein: stair section (1) includes ladder beam bottom plate (11), ladder beam curb plate (12), a set of ladder beam web (13) and ladder beam apron (14), one side of ladder beam bottom plate (11) is located in ladder beam curb plate (12), ladder beam bottom plate (11) top is located in ladder beam web (13), ladder beam apron (14) are located on ladder beam web (13).
5. The triangular stairstep of claim 2, wherein: the ladder beam web (13) comprises a first web (131), a second web (132) and a third web (133), the first web (131), the second web (132) and the third web (133) are arranged on the ladder beam bottom plate (11) and the ladder beam cover plate (14), and inner baffles (134) are arranged between the first web (131) and the second web (132) and between the second web (132) and the third web (133);
and one side, close to the ladder beam side plate (12), of the third web plate (133) is provided with a handrail limiting plate (135), and the handrail limiting plate (135) is connected with the supporting plate (136).
6. The triangular stairstep of claim 2, wherein: the cloth treading section comprises a first treading section and a second treading section.
7. The triangular stairstep of claim 6, wherein: the first stepping section and the second stepping section comprise a bottom plate (21), a group of stepping inner baffles (22), a group of sealing plates (23) and a cover plate (24), wherein the stepping inner baffles (22) are arranged on the bottom plate (21), the cover plate (24) is arranged above the stepping inner baffles (22), the sealing plates (23) are arranged between the bottom plate (21) and the cover plate (24), and round steel (25) is arranged at the connecting part of the cover plate (24) and the bottom plate (21); a group of notches (241) are formed in one side, located on the cover plate (24), of the first step section, and the notches (241) are connected with the ladder beam cover plate (14) through a group of stiffening plates (242); the bottom plate (21) in the second step section is provided with an extension section (211) which is connected with the ladder beam cover plate (14) through the extension section (211).
8. The triangular stairstep of claim 7, wherein: the stepping inner partition plate (22) is an arch bridge-shaped inner partition plate or a trapezoidal inner partition plate.
Priority Applications (2)
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| CN202011595753.3A CN112746713B (en) | 2020-12-30 | 2020-12-30 | Triangular step stair and construction process thereof |
| PCT/CN2021/130244 WO2022142766A1 (en) | 2020-12-30 | 2021-11-12 | Triangular stepping stair and construction process therefor |
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| CN202011595753.3A CN112746713B (en) | 2020-12-30 | 2020-12-30 | Triangular step stair and construction process thereof |
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| CN112746713B true CN112746713B (en) | 2021-11-23 |
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| CN112746713B (en) * | 2020-12-30 | 2021-11-23 | 江苏沪宁钢机股份有限公司 | Triangular step stair and construction process thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2022142766A1 (en) | 2022-07-07 |
| CN112746713A (en) | 2021-05-04 |
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