CN111502142B - Modular stair structure of prefabricated building - Google Patents
Modular stair structure of prefabricated building Download PDFInfo
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- CN111502142B CN111502142B CN202010290991.7A CN202010290991A CN111502142B CN 111502142 B CN111502142 B CN 111502142B CN 202010290991 A CN202010290991 A CN 202010290991A CN 111502142 B CN111502142 B CN 111502142B
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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
- E04F11/035—Stairways consisting of a plurality of assembled modular parts without further support
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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
- E04F11/104—Treads
- E04F11/112—Treads of metal or with an upper layer of metal
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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
- E04F11/104—Treads
- E04F2011/1046—Miscellaneous features of treads not otherwise provided for
- E04F2011/1047—Miscellaneous features of treads not otherwise provided for with means for eliminating squeak
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention discloses a modular stair structure of an assembly type building, which comprises a lower floor beam, an upper floor beam, a rest platform positioned between the lower floor beam and the upper floor beam, and a step assembly for connecting the rest platform with the lower floor beam and the rest platform with the upper floor beam, wherein the step assembly comprises two main boards which are arranged face to face, a plurality of step boards arranged between the two main boards, and a connecting piece for connecting the main boards with the step boards, the plurality of step boards are sequentially arranged downwards in an inclined manner, the opposite surfaces of the two main boards are the respective inner surfaces, the connecting piece is respectively arranged on the inner surfaces of the two main boards, and the step boards comprise a horizontal panel and a vertical panel. The invention realizes the fully-assembled design of the house steps, avoids assembling the steps in the construction site by welding and other modes, simplifies the assembling process, improves the assembling speed and realizes the integrated convenient installation of the house steps.
Description
Technical Field
The invention relates to the field of buildings, in particular to a modular stair structure of an assembly type building.
Background
According to Chinese building energy consumption research report (2017) issued by the Chinese building energy conservation Association, it is shown that steel products of 1/3 nationwide, 60-70% of cement, 1/3 urban construction land, 1/3 urban water and 40-50% of energy are consumed in the whole life cycle of the house building, and the influence on energy, resources and environment is huge. The traditional building industry is a highly-polluted, highly-energy-consuming and environment-unfriendly industry, has low industrialization degree, large water consumption, energy consumption, artificial garbage and sewage discharge amount, does not accord with the national sustainable development policy of energy conservation and environmental protection, and needs a large amount of labor force.
In recent years, with the continuous improvement of living standard of people, the requirements of people on building speed, building cost, construction quality, energy conservation, environmental protection and the like in the building industry such as houses and the like are also continuously improved, and in order to save resources and energy, reduce construction pollution, improve labor production efficiency and quality safety level, develop green buildings and advanced construction modes, the nation advocates a modern assembly type building system from 2016. The development of the assembly type building is a great change of the construction mode, is an important measure for promoting the structural reform of the supply side and the novel urbanization development, is favorable for saving resource and energy, reducing construction pollution, improving labor production efficiency and quality safety level, and is favorable for promoting the deep integration of the building industry and the information industrialization, cultivating new kinetic energy of new industry and promoting the excess capacity of chemical solution. The prefabricated structure is adopted, standardized design, factory production and even product production, assembly construction, integrated decoration, informatization management and intelligent application can be realized, the construction efficiency is effectively improved, the cost is reduced, energy and resources are saved, building waste and adverse effects on the environment are reduced, the technical level and the engineering quality are improved, and the transformation and the upgrade of the building industry are promoted.
Building industrialization is the development direction of future building industry, and assembly type buildings are hot spots of research and development practices of institutions of various departments and schools and building enterprises in recent years, various prefabricated components are rich in form and variety, and novel, high-quality and different-performance prefabricated component products are developed rapidly and widely applied, but because China is weak and late in the field of assembly type buildings, many defects exist in the field, for example, the stairs of the existing assembly type buildings adopt the mode of traditional prefabricated stairs, the stairs are divided into three parts according to floor height and staircase size in factories, namely rest boards, stair beams and stair sections, and then the prefabricated components are respectively prefabricated in processing factories and assembled and welded during construction, so that on one hand, one component is decomposed into three parts, the workload of pouring and construction is increased, and further, the manufacturing and construction costs are increased, on the other hand, the disassembled stair component is not a standardized product, is still independently cast by independently adjusting a mold according to the floor height and the size of the stair well, is still a customized product, and has high cost.
Disclosure of Invention
The invention aims to provide a modular stair structure of an assembly type building, which realizes the fully-assembled design of house steps, can realize the assembly of the house steps only by using simple accessories such as screws and the like on a construction site, avoids the assembly of the steps in the construction site by welding and other modes, simplifies the assembly process, improves the assembly speed, and realizes the integrated convenient installation of the house steps.
In order to achieve the purpose, the invention adopts the technical scheme that: a modular stair structure of an assembly type building comprises a lower floor beam, an upper floor beam, a rest platform positioned between the lower floor beam and the upper floor beam, and a step assembly for connecting the rest platform and the lower floor beam and connecting the rest platform and the upper floor beam;
the stepping assembly comprises two main boards arranged face to face, a plurality of stepping boards arranged between the two main boards and a connecting piece used for connecting the main boards and the stepping boards, wherein the plurality of stepping boards are sequentially arranged downwards in an inclined manner, the opposite surfaces of the two main boards are the respective inner surfaces, and the connecting piece is respectively arranged on the inner surfaces of the two main boards;
the step plates comprise horizontal panels and vertical panels, and the horizontal panel of one step plate is overlapped with the vertical panel of the other step plate in the two adjacent step plates;
the connecting piece comprises a first mounting plate in contact connection with the inner surface of the main board and a second mounting plate in contact connection with the step board, the second mounting plate is perpendicular to the first mounting plate and is bent towards one side opposite to the main board, the second mounting plate further comprises a horizontal mounting panel and a vertical mounting panel, the horizontal mounting panel is in contact connection with the horizontal panel of the step board, and the vertical mounting panel is in contact connection with the vertical mounting panel of the step board;
the first mounting plate is provided with a plurality of first mounting through holes, a first nut is mounted on each first mounting through hole, the main board is provided with a first connecting through hole corresponding to each first mounting through hole, and a bolt penetrates through the first connecting through hole on the main board and is in threaded connection with the first nut arranged on the first mounting plate;
the horizontal panel and the vertical panel of the step plate are respectively provided with a downward or inward strip-shaped depressed part, the horizontal installation panel and the vertical installation panel of the connecting piece further comprise a first step panel and a second step panel, the first step panel is higher than the second step panel, and the second step panel is in contact connection with the bottom surface of the strip-shaped depressed part of the step plate;
a buffer strip is arranged between two adjacent step boards, one side surface of the buffer strip is in contact connection with the surface of a horizontal panel of one step board, and the other side surface of the buffer strip is in contact connection with the end surface of a vertical panel of the other step board;
one end, opposite to the horizontal panel, of the vertical panel of the step plate is provided with a horizontal flanging part which is bent in the same direction as the horizontal panel, one end, opposite to the vertical panel, of the horizontal flanging part is provided with a vertical bending part which is bent towards one side of the horizontal panel, and the horizontal flanging part is in face-to-face contact connection with the buffer strip;
polyurethane layers are filled in regions enclosed by the inner surfaces of the horizontal panel and the vertical panel of the step plate and the connecting pieces arranged on the two sides of the step plate.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, one end of the horizontal panel of the step plate, which is opposite to the vertical panel, is provided with a vertical flanging part which is bent in the same direction as the vertical panel.
2. In the above scheme, one end of the vertical flanging part, which is opposite to the horizontal panel, is provided with a horizontal bending part towards one side of the vertical panel.
3. In the above scheme, the first nut and the first mounting through hole are connected by welding or riveting.
4. In the above scheme, the cross-sectional shape of the strip-shaped concave part is isosceles trapezoid.
5. In the above scheme, the buffer strips are fixedly installed on the horizontal panel of the step plate through a plurality of screws.
6. In the above scheme, the buffer strip is fixedly arranged between the inner surface of the horizontal panel of the step plate and the first mounting plate of the connecting piece through a plurality of screws.
7. In the above scheme, the step plate and the connecting piece are both integrally formed by steel plates.
8. In the scheme, the adjacent strip-shaped concave parts form an outward strip-shaped groove on the inner surfaces of the horizontal panel and the vertical panel, and the polyurethane layer is embedded into the strip-shaped groove and is in close contact with the inner surfaces of the horizontal panel and the vertical panel.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the modular stair structure of the assembly type building realizes the fully-assembled design of the house steps, can realize the assembly of the house steps only by using simple accessories such as screws and the like on a construction site, avoids assembling the steps in the construction site in modes such as welding and the like, simplifies the assembly process, improves the assembly speed, and realizes the integrated convenient installation of the house steps; in addition, the arrangement of the nuts on the first mounting plate enables the main board and the first mounting plate to be locked and fixed face to face, the situation that the joint is distorted and deformed cannot occur, the structural stability is good, the dismounting is easy, the situation that the nuts are lost can be avoided, and the mounting efficiency is improved.
2. According to the modular stair structure of the assembly type building, the strip-shaped grooves in the pedal and the two step panels on the connecting piece are matched, so that the mechanical strength of the pedal and the stability of connection between the pedal and the connecting piece are enhanced, the combination strength of the pedal and fillers filled below the pedal, such as concrete, is favorably enhanced, the overall strength of the stair structure is further enhanced, and a good damping effect is achieved; further, the cross sectional shape of its bar depressed part is isosceles trapezoid, the sunken design of dovetail groove form, the joint strength between footboard and the filler has been strengthened more, and the horizontal panel of step board, vertical panel respective internal surface and the regional intussuseption that encloses that sets up between the connecting piece of step board both sides are filled with the polyurethane layer, the setting on polyurethane layer, both can with the fine combination of step board, good shock attenuation has again, the noise cancelling effect, more effectual resonance and the sound that reduces stair structure in the use, reinforcing user experience.
3. According to the modular stair structure of the assembly type building, the buffer strips are arranged to provide elastic support for the adjacent step plates and the adjacent connecting pieces, so that the connection stability of all parts of the step assembly body can be improved, resonance can be further reduced, and the damping effect of the step structure is enhanced; furthermore, the arrangement of the buffer sheet between the main board and the connecting piece improves the stability and the structural strength of the connection between the main board and the connecting piece, and further enhances the shock absorption capacity of the whole stepping structure.
4. According to the modular stair structure of the assembly type building, the horizontal flanging part and the vertical bending part are arranged, so that the structural strength of the modular stair structure is further enhanced under the condition that the thickness of the stepping plates is not increased, meanwhile, the contact area between the stepping plates and the buffer strip is increased, the connection stability between the buffer strip and the stepping plates and between two adjacent stepping plates is ensured, and the damping effect is further enhanced; furthermore, through the arrangement of the vertical flanging part and the horizontal bending part, the arrangement is symmetrical to the horizontal flanging part and the vertical bending part, so that the integrity of the step plate is ensured, the strength of the step plate and the stability of connection with other parts are further enhanced, and the integral structural strength of the step is ensured.
Drawings
FIG. 1 is a schematic structural view of a modular stair structure of a prefabricated building according to the present invention;
FIG. 2 is a schematic structural view of a tread plate in the modular stairway structure of the prefabricated building according to the present invention;
FIG. 3 is a schematic view of a partial structure of a tread plate in the modular stairway structure of the prefabricated building according to the present invention;
FIG. 4 is a schematic structural view of a connecting member in a modular stair structure of the prefabricated building according to the present invention;
FIG. 5 is a schematic view of a portion of a modular stair construction of the prefabricated building of the present invention;
FIG. 6 is a schematic view of a portion of a modular stair construction of the prefabricated building of the present invention;
fig. 7 is a partial structural view of the modular stair structure of the prefabricated building according to the present invention.
In the above drawings: 1. a main board; 101. a first connecting through hole; 2. a step plate; 201. a horizontal panel; 202. a vertical panel; 203. a bar-shaped recess; 204. a vertical flanging part; 205. a horizontal bending part; 206. a horizontal flanging part; 207. a vertical bending part; 3. a connecting member; 3. a connecting member; 301. a first mounting plate; 302. a second mounting plate; 303. horizontally mounting a panel; 304. vertically mounting a panel; 305. a first mounting through hole; 306. a first stair tread; 307. a second stair tread; 4. a first nut; 5. a buffer strip; 6. a buffer sheet; 11. a lower floor beam; 12. an upper floor beam; 13. a resting platform; 14. a tread assembly; 15. a polyurethane layer.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but 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 should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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 meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a modular stair structure of an assembly type building comprises a lower floor beam 11, an upper floor beam 12, a rest platform 13 positioned between the lower floor beam 11 and the upper floor beam 12, and a step assembly 14 connecting the rest platform 13 with the lower floor beam 11 and the rest platform 13 with the upper floor beam 12;
the stepping assembly 14 comprises two main boards 1 arranged face to face, a plurality of stepping boards 2 arranged between the two main boards 1 and connecting pieces 3 used for connecting the main boards 1 and the stepping boards 2, wherein the plurality of stepping boards 2 are sequentially arranged downwards in an inclined manner, the opposite surfaces of the two main boards 1 are respective inner surfaces, the connecting pieces 3 are respectively arranged on the inner surfaces of the two main boards 1, the connecting pieces 3 on the two main boards 1 are respectively arranged correspondingly so as to form a plurality of connecting piece groups, one connecting piece 3 in the connecting piece group is connected with one end of each stepping board 2, and the other connecting piece 3 in the connecting piece group is connected with the other end of each stepping board 2;
the step plates 2 comprise horizontal panels 201 and vertical panels 202, and in two adjacent step plates 2, the horizontal panel 201 of one step plate 2 is overlapped with the vertical panel 202 of the other step plate 2;
the connecting piece 3 comprises a first mounting plate 301 in contact connection with the inner surface of the main board 1 and a second mounting plate 302 in contact connection with the tread board 2, the second mounting plate 302 is perpendicular to the first mounting plate 301 and is bent towards one side opposite to the main board 1, the second mounting plate 302 further comprises a horizontal mounting panel 303 and a vertical mounting panel 304, the horizontal mounting panel 303 is in contact connection with a horizontal panel 201 of the tread board 2, the vertical mounting panel 304 is in contact connection with a vertical mounting panel 304 of the tread board 2, and the first mounting plate 301 is also provided with the horizontal mounting panel and the vertical mounting panel;
the first mounting plate 301 is provided with a plurality of first mounting through holes 305, the first mounting through holes 305 are provided with first nuts 4, the main plate 1 is provided with first connecting through holes 101 corresponding to the first mounting through holes 305, and a bolt passes through the first connecting through holes 101 on the main plate 1 and is in threaded connection with the first nuts 4 arranged on the first mounting plate 301;
the horizontal panel 201 and the vertical panel 202 of the tread board 2 are respectively provided with a downward or inward strip-shaped concave part 203, the horizontal installation panel 303 and the vertical installation panel 304 of the connecting piece 3 further comprise a first step panel 306 and a second step panel 307, the first step panel 306 is higher than the second step panel 307, and the second step panel 307 is in contact connection with the bottom surface of the strip-shaped concave part 203 of the tread board 2;
a buffer strip 5 is arranged between two adjacent step boards 2, one side surface of the buffer strip 5 is in contact connection with the surface of the horizontal panel 201 of one step board 2, and the other side surface of the buffer strip 5 is in contact connection with the end surface of the vertical panel 202 of the other step board 2;
one end, opposite to the horizontal panel 201, of the vertical panel 202 of the step plate 2 is provided with a horizontal flanging part 206 which is bent in the same direction as the horizontal panel 201, one end, opposite to the vertical panel 202, of the horizontal flanging part 206 is provided with a vertical bending part 207 which is bent towards one side of the horizontal panel 201, and the horizontal flanging part 206 is in face-to-face contact connection with the buffer strip 5;
the polyurethane layer 15 is filled in the region enclosed by the inner surfaces of the horizontal panel 201 and the vertical panel 202 of the step board 2 and the connecting parts 3 arranged on the two sides of the step board 2.
One end of the horizontal panel 201 of the step plate 2, which is opposite to the vertical panel 202, is provided with a vertical flanging part 204 which is bent in the same direction as the vertical panel 202; the end of the vertical flanging part 204 opposite to the horizontal panel 201 is provided with a horizontal bending part 205 towards one side of the vertical panel 202.
Example 2: a modular stair structure of an assembly type building comprises a lower floor beam 11, an upper floor beam 12, a rest platform 13 positioned between the lower floor beam 11 and the upper floor beam 12, and a step assembly 14 connecting the rest platform 13 with the lower floor beam 11 and the rest platform 13 with the upper floor beam 12;
the stepping assembly 14 comprises two main boards 1 arranged face to face, a plurality of stepping boards 2 arranged between the two main boards 1 and connecting pieces 3 used for connecting the main boards 1 and the stepping boards 2, wherein the plurality of stepping boards 2 are sequentially arranged downwards in an inclined manner, the opposite surfaces of the two main boards 1 are respective inner surfaces, the connecting pieces 3 are respectively arranged on the inner surfaces of the two main boards 1, the connecting pieces 3 on the two main boards 1 are respectively arranged correspondingly so as to form a plurality of connecting piece groups, one connecting piece 3 in the connecting piece group is connected with one end of each stepping board 2, and the other connecting piece 3 in the connecting piece group is connected with the other end of each stepping board 2;
the step plates 2 comprise horizontal panels 201 and vertical panels 202, and in two adjacent step plates 2, the horizontal panel 201 of one step plate 2 is overlapped with the vertical panel 202 of the other step plate 2;
the connecting piece 3 comprises a first mounting plate 301 in contact connection with the inner surface of the main board 1 and a second mounting plate 302 in contact connection with the tread board 2, the second mounting plate 302 is perpendicular to the first mounting plate 301 and is bent towards one side opposite to the main board 1, the second mounting plate 302 further comprises a horizontal mounting panel 303 and a vertical mounting panel 304, the horizontal mounting panel 303 is in contact connection with a horizontal panel 201 of the tread board 2, the vertical mounting panel 304 is in contact connection with a vertical mounting panel 304 of the tread board 2, and the first mounting plate 301 is also provided with the horizontal mounting panel and the vertical mounting panel;
the first mounting plate 301 is provided with a plurality of first mounting through holes 305, the first mounting through holes 305 are provided with first nuts 4, the main plate 1 is provided with first connecting through holes 101 corresponding to the first mounting through holes 305, and a bolt passes through the first connecting through holes 101 on the main plate 1 and is in threaded connection with the first nuts 4 arranged on the first mounting plate 301;
the horizontal panel 201 and the vertical panel 202 of the tread board 2 are respectively provided with a downward or inward strip-shaped concave part 203, the horizontal installation panel 303 and the vertical installation panel 304 of the connecting piece 3 further comprise a first step panel 306 and a second step panel 307, the first step panel 306 is higher than the second step panel 307, and the second step panel 307 is in contact connection with the bottom surface of the strip-shaped concave part 203 of the tread board 2;
a buffer strip 5 is arranged between two adjacent step boards 2, one side surface of the buffer strip 5 is in contact connection with the surface of the horizontal panel 201 of one step board 2, and the other side surface of the buffer strip 5 is in contact connection with the end surface of the vertical panel 202 of the other step board 2;
one end, opposite to the horizontal panel 201, of the vertical panel 202 of the step plate 2 is provided with a horizontal flanging part 206 which is bent in the same direction as the horizontal panel 201, one end, opposite to the vertical panel 202, of the horizontal flanging part 206 is provided with a vertical bending part 207 which is bent towards one side of the horizontal panel 201, and the horizontal flanging part 206 is in face-to-face contact connection with the buffer strip 5;
the polyurethane layer 15 is filled in the region enclosed by the inner surfaces of the horizontal panel 201 and the vertical panel 202 of the step board 2 and the connecting parts 3 arranged on the two sides of the step board 2.
The first nut 4 and the first mounting through hole 305 are connected by welding or riveting; the cross section of the strip-shaped concave part 203 is in an isosceles trapezoid shape; the buffer strip 5 is fixedly arranged on the horizontal panel 201 of the step plate 2 through a plurality of screws;
the adjacent strip-shaped concave parts 203 form an outward strip-shaped groove on the inner surfaces of the horizontal panel 201 and the vertical panel 202, and the polyurethane layer 15 is embedded into the strip-shaped groove and is tightly contacted with the inner surfaces of the horizontal panel 201 and the vertical panel 202;
a buffer sheet 6 is arranged between the inner surface of the main board 1 and the first mounting plate 301 of the connecting piece 3; the step plate 2 and the connecting piece 3 are both integrally formed by steel plates.
When the modular stair structure of the assembly type building is adopted, the fully-assembled design of the house step is realized, the assembly of the house step can be realized only by using simple accessories such as screws and the like on a construction site, the step is prevented from being assembled in the construction site in modes such as welding and the like, the assembly process is simplified, the assembly speed is increased, and the integrated convenient installation of the house step is realized;
in addition, due to the arrangement of the nuts on the first mounting plate, face-to-face locking and fixing between the main board and the first mounting plate are realized, the conditions of distortion and deformation of a connecting part and the like are avoided, the structural stability is good, the disassembly and the assembly are easy, the conditions of nut missing and the like can be avoided, and the mounting efficiency is improved;
in addition, through the matching design of the strip-shaped grooves on the pedal and the two step panels on the connecting piece, the mechanical strength of the step plate and the stability of connection between the step plate and the connecting piece are enhanced, the combination strength of the pedal and fillers filled below the pedal, such as concrete, is also favorably enhanced, the overall strength of the stair structure is further enhanced, and a good damping effect is also achieved; furthermore, the dovetail groove-shaped concave design enhances the bonding strength between the pedal and the filler, and the polyurethane layer can be well bonded with the pedal plate, has good shock absorption and noise reduction effects, and more effectively reduces the resonance and sound of the stair structure in the using process;
in addition, through the arrangement of the buffer strips, elastic support is provided for the adjacent stepping plates and the adjacent connecting pieces, so that the connection stability of all parts of the stepping assembly body can be improved, resonance can be further reduced, and the damping effect of the stepping structure is enhanced; furthermore, the arrangement of the buffer sheet between the main board and the connecting piece not only improves the connection stability between the main board and the connecting piece and enhances the structural strength, but also further enhances the shock absorption capacity of the whole structure of the step;
in addition, through the arrangement of the horizontal bent part and the vertical bent part, the structural strength of the pedal is further enhanced under the condition of not increasing the thickness of the pedal, meanwhile, the contact area between the pedal and the buffer strip is increased, the connection stability between the buffer strip and the pedal and between two adjacent pedals is ensured, and the shock absorption effect is further enhanced; furthermore, through the arrangement of the vertical flanging part and the horizontal bending part, the arrangement is symmetrical to the horizontal flanging part and the vertical bending part, so that the integrity of the step plate is ensured, the strength of the step plate and the stability of connection with other parts are further enhanced, and the integral structural strength of the step is ensured.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. A modular stair structure of prefabricated building, its characterized in that: comprises a lower floor beam (11), an upper floor beam (12), a rest platform (13) positioned between the lower floor beam (11) and the upper floor beam (12), and a step assembly (14) for connecting the rest platform (13) with the lower floor beam (11), the rest platform (13) and the upper floor beam (12);
the stepping assembly (14) comprises two main boards (1) arranged face to face, a plurality of stepping boards (2) arranged between the two main boards (1) and connecting pieces (3) used for connecting the main boards (1) and the stepping boards (2), wherein the plurality of stepping boards (2) are sequentially arranged downwards in an inclined manner, the opposite surfaces of the two main boards (1) are the respective inner surfaces, and the connecting pieces (3) are respectively arranged on the inner surfaces of the two main boards (1);
the step plates (2) comprise horizontal panels (201) and vertical panels (202), and in the two step plates (2) which are adjacently arranged, the horizontal panel (201) of one step plate (2) is overlapped with the vertical panel (202) of the other step plate (2);
the connecting piece (3) comprises a first mounting plate (301) in contact connection with the inner surface of the main board (1) and a second mounting plate (302) in contact connection with the step board (2), the second mounting plate (302) is perpendicular to the first mounting plate (301) and is bent towards one side opposite to the main board (1), the second mounting plate (302) further comprises a horizontal mounting panel (303) and a vertical mounting panel (304), the horizontal mounting panel (303) is in contact connection with a horizontal panel (201) of the step board (2), and the vertical mounting panel (304) is in contact connection with a vertical mounting panel (304) of the step board (2);
the first mounting plate (301) is provided with a plurality of first mounting through holes (305), the first mounting through holes (305) are provided with first nuts (4), the main board (1) is provided with first connecting through holes (101) corresponding to the first mounting through holes (305), and a bolt penetrates through the first connecting through holes (101) in the main board (1) and is in threaded connection with the first nuts (4) arranged on the first mounting plate (301);
the horizontal panel (201) and the vertical panel (202) of the step plate (2) are respectively provided with a downward or inward strip-shaped concave part (203), the horizontal installation panel (303) and the vertical installation panel (304) of the connecting piece (3) further comprise a first step panel (306) and a second step panel (307), the first step panel (306) is higher than the second step panel (307), and the second step panel (307) is in contact connection with the bottom surface of the strip-shaped concave part (203) of the step plate (2);
a buffer strip (5) is arranged between two adjacent step boards (2), one side surface of the buffer strip (5) is in contact connection with the surface of the horizontal panel (201) of one step board (2), and the other side surface of the buffer strip (5) is in contact connection with the end surface of the vertical panel (202) of the other step board (2);
one end, opposite to the horizontal panel (201), of the vertical panel (202) of the stepping plate (2) is provided with a horizontal flanging part (206) which is bent in the same direction as the horizontal panel (201), one end, opposite to the vertical panel (202), of the horizontal flanging part (206) is provided with a vertical bending part (207) which is bent towards one side of the horizontal panel (201), and the horizontal flanging part (206) is in face-to-face contact connection with the buffer strip (5);
polyurethane layers (15) are filled in regions enclosed by the inner surfaces of the horizontal panel (201) and the vertical panel (202) of the step plate (2) and the connecting pieces (3) arranged on the two sides of the step plate (2).
2. The modular stair structure of a fabricated building according to claim 1, wherein: one end, opposite to the vertical panel (202), of the horizontal panel (201) of the step plate (2) is provided with a vertical flanging part (204) which is bent in the same direction as the vertical panel (202).
3. The modular stair structure of a fabricated building according to claim 2, wherein: one end of the vertical flanging part (204) opposite to the horizontal panel (201) is provided with a horizontal bending part (205) towards one side of the vertical panel (202).
4. The modular stair structure of a fabricated building according to claim 1, wherein: the first nut (4) and the first mounting through hole (305) are connected by welding or riveting.
5. The modular stair structure of a fabricated building according to claim 1, wherein: the cross section of the strip-shaped concave part (203) is in an isosceles trapezoid shape.
6. The modular stair structure of a fabricated building according to claim 1, wherein: the buffer strips (5) are fixedly arranged on the horizontal panel (201) of the step plate (2) through a plurality of screws.
7. The modular stair structure of a fabricated building according to claim 1, wherein: a buffer sheet (6) is arranged between the inner surface of the main board (1) and the first mounting plate (301) of the connecting piece (3).
8. The modular stair structure of a fabricated building according to claim 1, wherein: the step plate (2) and the connecting piece (3) are both obtained by integrally forming steel plates.
9. The modular stair structure of a fabricated building according to claim 1 or 5, wherein: the adjacent strip-shaped concave parts (203) form an outward strip-shaped groove on the inner surfaces of the horizontal panel (201) and the vertical panel (202), and the polyurethane layer (15) is embedded into the strip-shaped groove and is in close contact with the inner surfaces of the horizontal panel (201) and the vertical panel (202).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010290991.7A CN111502142B (en) | 2020-04-14 | 2020-04-14 | Modular stair structure of prefabricated building |
| PCT/CN2021/086728 WO2021208870A1 (en) | 2020-04-14 | 2021-04-12 | Modular stair structure for fabricated building |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010290991.7A CN111502142B (en) | 2020-04-14 | 2020-04-14 | Modular stair structure of prefabricated building |
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| CN111502142A CN111502142A (en) | 2020-08-07 |
| CN111502142B true CN111502142B (en) | 2021-06-15 |
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| CN202010290991.7A Active CN111502142B (en) | 2020-04-14 | 2020-04-14 | Modular stair structure of prefabricated building |
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| CN (1) | CN111502142B (en) |
| WO (1) | WO2021208870A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111502142B (en) * | 2020-04-14 | 2021-06-15 | 漳州昊恒建材有限公司 | Modular stair structure of prefabricated building |
| CN112081323A (en) * | 2020-08-27 | 2020-12-15 | 衡东县佳时鸿丰建材有限责任公司 | Mounting structure and mounting method of wood stair tread |
| CN115492323B (en) * | 2022-10-19 | 2024-07-09 | 深圳鑫亿光科技有限公司 | Assembled LED stair tread and mounting process thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2021208870A1 (en) | 2021-10-21 |
| CN111502142A (en) | 2020-08-07 |
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