Modular staircase and construction method

Abstract

The invention provides a modular staircase and a construction method, and relates to the field of building construction. The modularized staircase comprises a plurality of staircase modules built in the vertical direction, each staircase module comprises a bottom plate, a top plate, a wall plate, a staircase beam, a rest platform and staircase pedals, the lowermost end pedal of the lower staircase pedal is defined as a first pedal, and the uppermost end pedal of the lower staircase pedal is defined as a second pedal. The footboard at the lowest end of the upper stair is defined as a third footboard, the footboard at the uppermost end of the footboards of the upper stair is defined as a fourth footboard, the first footboard is flush with the bottom board, the second footboard is flush with the third footboard, and the fourth footboard of one staircase module is flush with the first footboard of the adjacent staircase module. Vertical building is achieved through the staircase modules, the function of stairs in a building can be achieved, and rapid assembly is achieved.

Description

Technical Field

[0001] This application relates to the field of building construction, and more particularly, to a modular staircase and a construction method. Background Art

[0002] Modular buildings have gradually become one of the important trends in the field of construction engineering in recent years. With the continuous progress of construction technology and the increasing demand for green environmental protection and efficient construction, modular buildings have received wide attention for their prefabrication, standardization, and rapid assembly characteristics. As an important part of a building, the functionality and safety of the staircase directly affect the quality of the entire building and the user experience.

[0003] The traditional construction method of staircases is usually carried out on-site, which requires a large amount of manpower and material resources, and is easily affected by external factors such as weather, resulting in extended construction periods and unstable quality. In addition, the traditional on-site construction method may also generate more construction waste, which does not conform to the development direction of modern green buildings.

[0004] To solve the above problems, the concept of modular staircases has emerged. By prefabricating staircase components in a factory and then transporting them to the construction site for rapid assembly, modular staircases significantly improve construction efficiency and reduce the environmental impact caused by on-site operations. At the same time, due to better quality and precision control in factory production, modular staircases also have higher uniformity in terms of structural strength and appearance design. However, in practical applications, there are still certain challenges in aspects such as the installation, connection, and adaptation to different building requirements of modular staircases. Summary of the Invention

[0005] The purpose of this application is to provide a modular staircase and a construction method that can meet the staircase function in a building and achieve rapid assembly.

[0006] In a first aspect, the present invention provides a modular staircase, which includes a plurality of staircase modules erected in the vertical direction. Each staircase module includes a bottom plate, a top plate, wall panels, ladder beams, landing platforms, and staircase treads. The bottom plate is disposed at the bottom of each staircase module. The top plate is disposed opposite to the bottom plate and is located at the top of each staircase module. A plurality of wall panels are connected end to end to define the internal space of each staircase module. The number of ladder beams is two groups. Each ladder beam in each group is fixed on two opposite wall panels along a first direction. One group of ladder beams is used to support the top plate. The landing platform is installed on the other group of ladder beams. The number of staircase treads is two. The total walking height of the two staircase treads is the height of the staircase module. The lowermost tread of the lower staircase tread is defined as the first tread, the uppermost tread of the lower staircase tread is defined as the second tread, the lowermost tread of the upper staircase is defined as the third tread, and the uppermost tread of the upper staircase tread is defined as the fourth tread. The first tread is flush with the bottom plate. The second tread is flush with the third tread. The fourth tread of one staircase module is flush with the first tread of the adjacent staircase module.

[0007] In an alternative embodiment, within each staircase module, the second tread and the third tread are installed on the ladder beams, and the second tread is also flush with the landing platform.

[0008] In an alternative embodiment, the wall panels include a first wall panel, a second wall panel, a third wall panel, and a fourth wall panel. The first wall panel, the second wall panel, the third wall panel, and the fourth wall panel are connected end to end to define a cuboid internal space. The first wall panel is provided with a door pier. The bottom plate is fixed to the first wall panel, the second wall panel, and the fourth wall panel. The landing platform is fixedly connected to the second wall panel, the third wall panel, and the fourth wall panel.

[0009] In an alternative embodiment, the modular staircase further includes a fire hydrant and a fire hydrant riser. The fire hydrant is disposed on the first wall panel and is spaced from the door pier. The fire hydrant riser is in communication with the fire hydrant and is disposed at the corner between the first wall panel and the second wall panel.

[0010] In an alternative embodiment, the modular staircase further includes a water and electricity riser, which is disposed at the corner between the first wall panel and the fourth wall panel.

[0011] In a second aspect, the present invention provides a construction method for a modular staircase, including:

[0012] Prefabricate the bottom slab, top slab, wall panels, ladder beams, landing platforms and stair treads with a preset modulus;

[0013] Connect and fix the four wall panels and fix three of the wall panels to the bottom slab;

[0014] Install two sets of ladder beams on two opposite wall panels respectively;

[0015] Install the top slab, landing platform and precast stairs.

[0016] In an optional embodiment, in the step of fixing three wall panels to the bottom slab, after tightening the ribbed steel bars with screw heads on the screw holes at the edge of the bottom slab, lay the wall base mortar. After the strength of the wall base mortar reaches the preset strength, hoist the wall panel, align the wall panel with the ribbed steel bars with screw heads for installation, and pour the slurry into the grouting bellows.

[0017] In an optional embodiment, after the installation of the wall panels is completed, tidy up the wire rope sleeves in the connection structure nodes of the longitudinal and transverse walls, install the inserted bars in the sleeves and then complete the grouting in the sleeves.

[0018] In an optional embodiment, in the step of fixing the ladder beam, first hoist the ladder beam to the preset position, pass the bolts through the anchor plates of the ladder beam, and then tighten with nuts.

[0019] In an optional embodiment, after the ladder beam is fixed, lay the felt and the cement mortar leveling layer on the ladder beam in sequence.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] The present application realizes vertical erection through the stairwell module. The stairwell module includes a bottom slab, a top slab, wall panels, ladder beams, landing platforms and stair treads. The present application uses the bottom slab as the supporting bottom of the stairwell module, the top slab as the top of the stairwell module, the wall panels to enclose and define the internal space, and the landing platform as the transfer platform between two stair treads. The present application can meet the stair function in the building and realize rapid assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Shows a schematic perspective view of a modular stairwell in some embodiments;

[0024] Figure 2Shows a schematic plan view of the connection node between the longitudinal and transverse walls of the box body in some embodiments;

[0025] Figure 3 Shows Figure 2 The enlarged view of part A in;

[0026] Figure 4 Shows a schematic plan view of the grout anchor of the wall panel in some embodiments;

[0027] Figure 5 Shows Figure 4 The enlarged view of part B in;

[0028] Figure 6 Shows a three-dimensional schematic view of the fixed node in some embodiments;

[0029] Figure 7 Shows a schematic plan view of the grout anchor of the edge member in some embodiments;

[0030] Figure 8 Shows a schematic plan view of the grout anchor at the wall body in some embodiments.

[0031] Description of main component symbols:

[0032] 100 - bottom plate; 200 - top plate; 300 - wall panel; 310 - first wall panel; 320 - third wall panel; 330 - fourth wall panel; 340 - connection node between the longitudinal and transverse walls of the box body; 341 - wire rope sleeve; 342 - inserted reinforcement in the sleeve; 343 - grouting in the sleeve; 350 - grout anchor of the wall panel; 351 - screw hole; 352 - wall base grout; 353 - ribbed bar with thread; 354 - grouting bellows; 400 - ladder beam; 500 - rest platform; 600 - stair tread; 700 - fixed node; 710 - M16 bolt; 720 - asphalt felt; 730 - cement mortar leveling layer; 740 - CGM grouting material; 750 - polystyrene filling layer; 760 - PE rod; 770 - edge sealing glue; 800 - fire hydrant; 810 - fire hydrant riser; 900 - water and electricity riser;

[0033] 10 - full - height through - inserted reinforcement; 20 - bedding mortar; 30 - tension - bearing bar seismic anchorage length LaE inserted reinforcement. Detailed implementation manners

[0034] The following details the embodiments of the present application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0037] In the present application, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0039] Embodiment 1

[0040] This embodiment provides a modular staircase, and the modular staircase includes a plurality of assembled staircase modules.

[0041] In this embodiment, two vertically assembled staircase modules form a modular staircase, which is equivalent to a two-story staircase.

[0042] In some other embodiments, a modular staircase is composed of multiple staircase modules built horizontally, which is equivalent to multiple staircases.

[0043] In some other embodiments, some of the staircase modules are built vertically and some are built horizontally, which is equivalent to a multi-story staircase, and each floor of the staircase includes multiple staircases.

[0044] Please refer to Figure 1 , each of the staircase modules includes a bottom plate 100, a top plate 200, wall panels 300, ladder beams 400, landing platforms 500, and staircase treads 600.

[0045] The bottom plate 100 is disposed at the bottom of each staircase module.

[0046] The top plate 200 is disposed opposite to the bottom plate 100 and is disposed at the top of each staircase module.

[0047] A plurality of wall panels 300 are connected end to end to define the internal space of each staircase module.

[0048] The wall panel 300 includes a first wall panel 310, a second wall panel (not shown in the figure), a third wall panel 320, and a fourth wall panel 330. The first wall panel 310, the second wall panel, the third wall panel 320, and the fourth wall panel 330 are connected end to end to define a cuboid internal space, and the first wall panel 310 is provided with a door pier.

[0049] Please refer to Figures 1 to 3 , the connection between the first wall panel 310, the second wall panel, the third wall panel 320, and the fourth wall panel 330 is connected through a box body longitudinal and transverse wall connection node 340, and the box body longitudinal and transverse wall connection node 340 is composed of an A5 steel wire rope sleeve 341 (U-shaped), an inserted bar 342 in the sleeve, and grouting 343 in the sleeve.

[0050] Please refer to Figure 1 , Figure 4 and Figure 5 , the bottom plate 100 is fixed to the first wall panel 310, the second wall panel, and the fourth wall panel 330.

[0051] In this embodiment, the fixing method of the bottom plate 100 to the first wall panel 310, the second wall panel, and the fourth wall panel 330 is through a wall panel grouting anchor 350 connection. The wall panel grouting anchor 350 is composed of a screw hole 351, a wall base grout 352, a ribbed bar 353 with a threaded head, and a grouting bellows 354 (filled with grouting material).

[0052] Please further refer to Figure 1 , the number of ladder beams 400 is two groups. Each ladder beam 400 in each group is fixed on two opposite wall panels 300 along a first direction, and one group of ladder beams 400 is used to support the top plate 200.

[0053] The anchor plate, bolts and nuts of the ladder beam 400 are fixed to the embedded bolt holes of the wall panel 300, where the wall panel 300 refers to the second wall panel and the fourth wall panel 330.

[0054] The rest platform 500 is installed on another group of ladder beams 400, and the rest platform 500 is fixedly connected to the second wall panel, the third wall panel 320 and the fourth wall panel 330.

[0055] The number of the stair treads 600 is two, and the total tread height of the two stair treads 600 is the height of the stairwell module.

[0056] The lowermost tread of the lower stair tread 600 is defined as the first tread, the uppermost tread of the lower stair tread 600 is defined as the second tread, the lowermost tread of the upper stair is defined as the third tread, and the uppermost tread of the upper stair tread 600 is defined as the fourth tread. The first tread is flush with the bottom plate 100, the second tread is flush with the third tread, and the fourth tread of one stairwell module is flush with the first tread of the adjacent stairwell module.

[0057] Within each stairwell module, the second tread and the third tread are installed on the ladder beam 400, and the second tread is also flush with the rest platform 500.

[0058] Please refer to Figure 1 and Figure 6 , the stair tread 600, the top plate 200 and the rest platform 500 are installed and fixed on the ladder beam 400. The fixed node 700 is composed of M16 bolts 710, felt 720, cement mortar leveling layer 730, C40 grade CGM grouting material 740, polystyrene filling layer 750, PE rod 760 and edge sealing glue 770.

[0059] Please refer to Figure 7 and Figure 8 , the vertical connection of multiple stairwell modules is realized by grouting the edge members and the wall to connect the bottom plates 100 and the top plates 200 of adjacent stairwell modules. The edge member grouting anchor is composed of full-height through-inserted steel bars 10, bedding mortar 20, and grouting corrugated pipe 354 (filled with C40 grouting material). The wall grouting anchor is composed of tension-receiving steel bar seismic anchorage length LaE inserted steel bars 30, bedding mortar 20, and grouting corrugated pipe 354 (filled with C40 grouting material).

[0060] The above-mentioned bedding mortar is a kind of bedding mortar that uses cement as the cementing material, is equipped with compound admixtures and aggregates, can be used after mixing with water on site, and has the characteristics of no shrinkage and easy construction. It is suitable for the bedding of various equipment pads. In this embodiment, the size of the bedding mortar can be set to 20 mm thick and 200 mm wide, and the grouting corrugated pipe 354 is the grouting corrugated pipe BW50.

[0061] Please continue to refer to Figure 1, in some other embodiments, the stairwell is horizontally connected through a rabbet reserved on the outer side of the top of the second wall panel or the fourth wall panel 330, and embedded reinforcing bars, anchoring steel bars, and a slightly expanding post-cast strip.

[0062] Please refer to Figure 1 , Figure 3 , Figure 5 and Figure 6 , based on the above content, the construction method of the modular stairwell in this embodiment is further described as follows:

[0063] S100. Prefabricate the bottom plate 100, top plate 200, wall panel 300, ladder beam 400, landing 500, and stair tread 600 according to a preset modulus.

[0064] S200. Connect and fix the four wall panels 300 and fix three of the wall panels 300 to the bottom plate 100.

[0065] In the step of fixing the three wall panels 300 to the bottom plate 100, after tightening the threaded bar 353 on the screw hole 351 at the edge of the bottom plate 100, lay the wall base mortar 352. The size of the wall base mortar 352 is 20 mm thick and 200 mm wide. After the strength of the wall base mortar 352 reaches the preset strength, hoist the wall panel 300, align the wall panel 300 with the threaded bar 353 for installation, and pour the slurry into the grouting bellows 354.

[0066] After the installation of the wall panel 300 is completed, tidy up the wire rope sleeve 341 in the connection structure node of the longitudinal and transverse walls, install the inserted bar 342 in the sleeve, and then complete the grouting 343 in the sleeve.

[0067] S300. Install the two groups of ladder beams 400 on the two opposite wall panels 300 respectively.

[0068] First, hoist the ladder beam 400 to the preset position. After passing the bolt through the anchor plate of the ladder beam 400, tighten it with a nut.

[0069] After the fixation of the ladder beam 400 is completed, lay the felt 720 and the cement mortar leveling layer 730 on the ladder beam 400 in sequence.

[0070] S400. Install the top plate 200, landing 500, and precast stairs.

[0071] This application realizes vertical erection through the stairwell module. The stairwell module includes a bottom plate 100, a top plate 200, a wall panel 300, a ladder beam 400, a landing 500, and a stair tread 600. In this application, the bottom plate 100 serves as the supporting bottom of the stairwell module, the top plate 200 serves as the top of the stairwell module, the wall panel 300 encloses and defines the internal space, and the landing 500 serves as a transfer platform between two stair treads 600. This application can meet the stair function in the building and achieve rapid assembly.

[0072] Example Two

[0073] Please refer to Figure 1 , based on Example One, improvements are made in this example. The improvements are that the modular staircase also includes a fire hydrant 800 and a fire hydrant riser 810. The fire hydrant 800 is arranged on the first wall panel 310, and the fire hydrant 800 is arranged at an interval from the door pier. The fire hydrant riser 810 is communicated with the fire hydrant 800, and the fire hydrant riser 810 is arranged at the corner between the first wall panel 310 and the second wall panel.

[0074] This example has fire protection assemblies, further improving the modularization level of the assembly.

[0075] Example Three

[0076] Please refer to Figure 1 , based on the above examples, improvements are made in this example. The improvements are that the modular staircase also includes a water and electricity riser 900, and the water and electricity riser 900 is arranged at the corner between the first wall panel 310 and the fourth wall panel 330.

[0077] This example has water and electricity assemblies, further improving the modularization level of the assembly.

[0078] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without conflict, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0079] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A modular staircase, characterized in that, It includes multiple assembled staircase modules. Each staircase module includes a bottom plate, a top plate, wall panels, ladder beams, a landing, and staircase treads. The bottom plate is disposed at the bottom of each staircase module. The top plate is disposed opposite to the bottom plate and is located at the top of each staircase module. The multiple wall panels are connected end to end to define the internal space of each staircase module. The number of ladder beams is two groups. Each ladder beam in each group is fixed on two opposite wall panels along a first direction. One group of ladder beams is used to support the top plate, and the landing is installed on the other group of ladder beams. The number of staircase treads is two. The total tread height of the two staircase treads is the height of the staircase module. The lowermost tread of the lower staircase tread is defined as the first tread, the uppermost tread of the lower staircase tread is defined as the second tread, the lowermost tread of the upper staircase is defined as the third tread, and the uppermost tread of the upper staircase tread is defined as the fourth tread. The first tread is flush with the bottom plate, the second tread is flush with the third tread, and the fourth tread of one staircase module is flush with the first tread of the adjacent staircase module.

2. The modular staircase according to claim 1, characterized in that Inside each staircase module, the second tread and the third tread are installed on the ladder beams, and the second tread is also flush with the landing.

3. The modular staircase according to claim 1 or 2, characterized in that, The wall panels include a first wall panel, a second wall panel, a third wall panel, and a fourth wall panel. The first wall panel, the second wall panel, the third wall panel, and the fourth wall panel are connected end to end to define a cuboid internal space. The first wall panel is provided with a door pier. The bottom plate is fixed to the first wall panel, the second wall panel, and the fourth wall panel, and the landing is fixedly connected to the second wall panel, the third wall panel, and the fourth wall panel.

4. The modular staircase according to claim 3, characterized in that It further includes a fire hydrant and a fire hydrant riser. The fire hydrant is disposed on the first wall panel and is spaced from the door pier. The fire hydrant riser is communicated with the fire hydrant and is disposed at the corner between the first wall panel and the second wall panel.

5. The modular staircase according to claim 4, characterized in that It further includes a water and electricity riser, which is disposed at the corner between the first wall panel and the fourth wall panel.

6. A construction method of a modular staircase, characterized in that, It includes: Precast the bottom plate, top plate, wall panels, ladder beams, landing, and staircase treads with a preset modulus; Connect and fix the four wall panels and fix three of the wall panels to the bottom plate; Install the two groups of ladder beams on two opposite wall panels respectively; Install the top plate, the landing, and the precast staircase.

7. The construction method of the modular staircase as described in claim 6, characterized in that, In the step of fixing the three wall panels to the bottom plate, after tightening the threaded bar with a head on the screw holes at the edge of the bottom plate, lay the wall base mortar. After the strength of the wall base mortar reaches the preset strength, hoist the wall panel, align the wall panel with the threaded bar with a head for installation, and pour the slurry into the grouting bellows.

8. The construction method of the modular staircase as claimed in claim 7, characterized in that, After the installation of the wall panels is completed, tidy up the wire rope sleeves in the connection structure nodes of the longitudinal and transverse walls, install the inserted bars in the sleeves, and then complete the grouting in the sleeves.

9. The construction method of the modular staircase as claimed in claim 6, characterized in that, In the step of fixing the ladder beams, first hoist the ladder beams to the preset position. After passing the bolts through the anchor plates of the ladder beams, tighten them with nuts.

10. The construction method of the modular staircase as claimed in claim 9, characterized in that, After the ladder beam is fixed, lay the felt and cement mortar leveling layer on the ladder beam in sequence.

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