A method and structural system for the construction of monolithic gypsum dwellings

Abstract

The application belongs to the technical field of residential building, and discloses a whole gypsum house construction method and structure system, and the specific steps are as follows: a plurality of gypsum floor support plates are prefabricated according to the sizes of rooms of the gypsum house, and gypsum walls are poured until the roof height of the gypsum house; installation slots of the gypsum floor support plates are reserved at the corresponding positions of the gypsum walls, and a plurality of through holes of cast-in-place gypsum floor plates are reserved above the installation slots; after the gypsum walls are completed, the gypsum floor support plates are hoisted and placed in the corresponding installation slots, and then the gypsum floor plates are poured on the floor support plates; then the upper gypsum floor support plates are hoisted and placed, the upper gypsum floor plates are poured, and the pouring of the gypsum floor plates of the top floor is completed. The gypsum walls are poured to the roof of the gypsum house, and then the gypsum floor plates are constructed, so that the construction period is shortened; the gypsum floor plates are formed by the gypsum floor support plates and gypsum slurry, the gypsum walls are connected by the gypsum slurry filled in the through holes, the whole house is gypsum, and the overall energy-saving effect of the building is improved.

Description

Technical Field

[0001] This invention belongs to the field of residential building technology, specifically relating to a method and structural system for constructing an integral plaster house. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Traditional building structures primarily use concrete, sintered red bricks, and steel, which presents problems such as high carbon emissions, long construction cycles, excessive construction waste, and low recycling rates. Some buildings have begun to use gypsum to replace traditional concrete, but in residential buildings, gypsum is mostly used for non-load-bearing partitions, decorative panels, and other auxiliary parts, thus limiting its application.

[0004] Existing technologies disclose energy-saving residential buildings with cast-in-place industrial gypsum load-bearing walls, which are mainly used in rural low-rise and small-bay residential projects. The gypsum load-bearing wall is made by directly pouring industrial gypsum slurry into the wall template. An industrial gypsum mold is erected on top of the gypsum load-bearing wall, and then steel bars are placed in the mold. Finally, concrete is poured to obtain a gypsum-concrete composite floor or roof.

[0005] The above solution has the following drawbacks: The above-mentioned scheme involves pouring the gypsum load-bearing walls in sections to the floor height before pouring the floor slabs, and only then can the construction of the next floor proceed. This results in a slow construction progress. In addition, the above-mentioned scheme still uses concrete as the floor or roof slab, which results in limited energy-saving effects. Summary of the Invention

[0006] In view of this, the purpose of this invention is to provide a method and structural system for constructing an integral gypsum board house, which can solve the technical problems of slow construction progress and limited energy-saving effect in existing gypsum board buildings.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: Firstly, a method for constructing a monolithic plaster house is provided, the specific steps of which include: Based on the dimensions of each floor of the gypsum board building, prefabricate a number of gypsum board floor slabs; Based on the total height of the gypsum board building, the gypsum walls are integrally molded up to the gypsum board roof elevation; After the plaster wall is completed, according to the design height of each floor of the plaster house, the installation grooves for the plaster floor decking are opened at the corresponding positions of the plaster wall, and multiple interlocking holes are opened at a set distance above the installation grooves. T-shaped grooves are opened on the inner side of the outer wall, and through holes are opened on the inner wall. Then, starting from the floor below, the gypsum floor decking is hoisted into the corresponding installation slots and placed. After all the gypsum floor deckings on the current floor are installed, gypsum slurry of a set height is poured onto the floor decking. After solidification, the gypsum floor decking is obtained, and the gypsum floor decking and gypsum wall are interlocked into a whole. After the lower gypsum board is completed, the upper gypsum board is hoisted and poured, until the top gypsum board is poured.

[0008] Furthermore, the plaster walls are formed by casting or printing, and all the plaster walls are cast together continuously or in sections to the level of the plaster roof.

[0009] Furthermore, the plasterboard flooring in each room is divided into multiple pieces.

[0010] Furthermore, along the axial direction of the through hole, at least one annular groove is reserved on the outer periphery of the through hole, with the bottom surface of the through hole flush with the bottom surface of the annular groove, and the diameter of the through hole being smaller than the thickness of the gypsum board.

[0011] Furthermore, before pouring the gypsum floor slab, fiberglass horizontal reinforcing bars are laid on the top surface of the installed gypsum floor slab, with the horizontal reinforcing bars passing through the through holes.

[0012] Furthermore, the spacing between the grooves on the two opposing gypsum walls is greater than the length of the gypsum floor decking, and the length of the gypsum floor decking is greater than the length between the two opposing gypsum walls.

[0013] Furthermore, the gypsum walls, gypsum floor decks, and gypsum floor slabs are made of high-strength alpha gypsum, with a compressive strength of over 50 MPa, a flexural strength of over 12 MPa, a tensile strength of over 10 MPa, and an elastic modulus of over 25 GPa.

[0014] Furthermore, the plaster house completes the pouring of plaster stairs at the same time as the plaster floor slab is poured; Based on the dimensions of the stairwell, prefabricate the stair platform deck slabs and prefabricated stairs for each floor; The plaster walls of the stairwell have mounting slots for the stair platform decking and through holes for the stair platform floor slab at the corresponding elevations. The stair platform slab is hoisted into the corresponding installation slot in the stairwell, then fiberglass horizontal reinforcing bars are laid on the top surface of the stair platform slab, and then gypsum slurry is poured to form the stair platform slab. The prefabricated staircase is hoisted after the staircase platform slab has been cured.

[0015] Furthermore, a step groove is reserved on the top surface of the end of the stair platform slab that connects to the precast staircase, and multiple vertical connecting pins are pre-embedded in the step groove; the bottom surfaces of both ends of the precast staircase are also reserved with inverted step grooves corresponding to the step grooves, and multiple connecting holes corresponding to the positions of the vertical connecting pins are opened on the inverted step grooves.

[0016] Secondly, a plaster house structure system is provided, which is constructed using the aforementioned integrated plaster house construction method.

[0017] Compared with the prior art, the advantages and positive effects of this invention are: This invention discloses a method for constructing an integral gypsum board roof. Gypsum walls are continuously or segmentally poured to the gypsum roof level, followed by the pouring of gypsum floor slabs. This eliminates the need to wait for each floor slab to be poured before constructing the next layer of walls and floors. This decoupling of wall and floor construction shortens the construction cycle and improves overall construction efficiency. This invention uses gypsum floor decking and cast-in-place gypsum slurry to form the gypsum floor slabs. The expansion of the gypsum slurry fills the through-holes, achieving an integral connection between the gypsum floor slabs and gypsum walls. This achieves the complete gypsum construction of the building. The all-gypsum structure not only fully utilizes the environmentally friendly, lightweight, and fire-resistant advantages of gypsum materials but also avoids the use of concrete floor slabs or roofs, thereby improving the overall energy efficiency of the building. Attached Figure Description

[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0019] Figure 1 This is a flowchart of a method for constructing an integral plaster house according to Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the connection of gypsum walls and gypsum floors in Embodiment 1 or 2 of the present invention; Figure 3 This is a front view of the installation groove and through hole opened on the plaster wall in Embodiment 1 or 2 of the present invention; Figure 4 This is a cross-sectional view of the installation groove and through hole opened on the gypsum wall in Embodiment 1 or 2 of the present invention; Figure 5 This is a schematic diagram of the annular groove of the through-hole facility in Embodiment 1 or 2 of the present invention; In the picture: 1. Gypsum floor decking; 2. Gypsum wall; 3. Installation groove; 4. Through hole; 41. Circular groove; 5. Gypsum floor slab. Detailed Implementation

[0020] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0021] Definitions: A gypsum board building is a structure made of gypsum material as both its load-bearing and enclosing structure.

[0022] The present invention will now be described in detail with reference to the accompanying drawings.

[0023] Example 1 This embodiment discloses a method for constructing an integral plaster house, such as... Figure 1 As shown, the specific steps include: Based on the dimensions of the rooms on each floor of the plaster house, several prefabricated units are prepared as follows: Figure 2 The gypsum floor deck 1 shown is produced by creating a mold and pouring gypsum slurry into the mold for curing. This prefabrication process can be completed in advance at a prefabrication plant or on the construction site.

[0024] Based on the total height of the plaster house, as follows Figure 2 The plaster wall 2 shown is integrally formed up to the plaster roof elevation. This step can be achieved by setting up formwork and scaffolding on site and pouring the plaster in layers.

[0025] After the plaster walls are poured and cured, the design height of each floor of the plaster house is determined according to the following: Figure 3 , Figure 4 As shown, mechanical grooving is used to create installation slots 3 for the gypsum board at corresponding positions on the gypsum wall 2. Multiple T-slots are created on the inner side of the outer wall, and multiple through holes 4 are created on the inner wall. The T-slots and through holes 4 are located above the installation slots 3. It should be noted that mechanical grooving ensures the flatness of the installation slots 3, facilitating the installation of the gypsum board 1. The through holes 4 are evenly distributed along the length of the inner gypsum wall 2 and penetrate the thickness of the gypsum wall 2. The T-slots are evenly distributed along the length of the outer gypsum wall 2, but the T-slots must not penetrate the thickness of the gypsum wall 2. The depth of the T-slots is half the thickness of the outer gypsum wall 2. This eliminates the need for formwork during floor slab pouring, simplifying construction.

[0026] After the plaster wall 2 is poured and the grooves and holes are cut, starting from the lower floors, the plaster floor deck 1 is hoisted to the corresponding installation slot 3 on the floor below. Then, plaster grout is poured onto the deck to a predetermined height. After solidification, the plaster floor 5 is formed. The expanding plaster grout fills the through holes 4, connecting the plaster floor 5 to the plaster wall 2, allowing them to interlock and form a unified structure, creating a complete plaster house. In this step, the construction of the middle room is carried out first. During hoisting, one end of the plaster floor deck 1 is tilted and placed into the installation slot 3 on one side of the room wall. Then, the plaster floor deck 1 is moved horizontally so that the other end is inserted into the installation slot 3 on the other side of the wall. After the plaster floor deck 1 is placed, the poured plaster grout solidifies to form the plaster floor 5. During the solidification process, the plaster grout expands, achieving a tight connection between the plaster floor 5 and the plaster wall 2.

[0027] It should be noted that the gypsum board 1 has a truss inside, and the truss protrudes from the top surface of the gypsum board 1. This truss is used to reserve lifting points for hoisting and to connect with the cast-in-place gypsum slurry to form a whole gypsum board 5. In addition, the height of the mounting groove 3 is greater than the thickness of the gypsum board 1. In some embodiments, the mounting groove 3 is designed as a trapezoid, with the upper side of the mounting groove 3 being longer than the lower side and its height greater than the thickness of the gypsum board 1, to facilitate the installation of the gypsum board 1.

[0028] After the lower gypsum floor slab 5 is poured, the upper gypsum floor deck 1 is hoisted and the upper gypsum floor slab 5 is poured until the top gypsum floor slab 5 is poured.

[0029] Understandably, in this embodiment, the gypsum wall 2 is formed by casting or printing, serving as the load-bearing structure and space partition of the gypsum house. The mounting groove 3 is used to support and position the gypsum floor deck 1, ensuring accurate installation on the wall. Before the gypsum floor slab 5 is poured, the gypsum floor deck 1 serves as a template and load-bearing component, forming the floor structure together with the subsequently poured gypsum slurry. During the pouring of the gypsum floor slab 5, the through hole 4 is filled by the expanding gypsum slurry, achieving a structural connection between the gypsum floor slab 5 and the gypsum wall 2, making them interlock as a whole. The gypsum floor slab 5, as a partition and load-bearing component between floors, provides horizontal support for the building.

[0030] It is understandable that in this embodiment, the gypsum wall 2 is integrally formed to the gypsum roof elevation based on the total height of the gypsum house, without waiting for the completion of each floor slab pouring. This decoupling of wall and floor slab construction shortens the construction cycle and improves overall construction efficiency. In this embodiment, gypsum floor slab 5 is formed by gypsum floor deck 1 and cast-in-place gypsum slurry. The gypsum floor slab 5 is integrally connected to the gypsum wall 2 by the expansion of the gypsum slurry filling the through holes 4. The entire structure adopts a beam-free, column-free, and masonry-free wall construction method, with no steel reinforcement in the walls and no concrete in the entire house. This achieves the complete gypsum-based construction of the building. The all-gypsum structure not only fully utilizes the environmental protection, lightweight, and fire resistance advantages of gypsum materials, but also avoids the use of concrete floor slabs or roofs, thereby improving the overall energy-saving effect of the building.

[0031] It should be noted that in this embodiment, the gypsum wall 2 is formed either by in-situ casting or by printing. In-situ casting refers to directly pouring liquid gypsum slurry into a pre-set mold, allowing it to solidify and form a wall. This method ensures the integrity and density of the wall and is suitable for wall construction of various shapes and sizes. Printing, on the other hand, refers to casting using a growth-type wall printing device. This growth-type wall printing device is the one disclosed in the earlier application CN115306156B.

[0032] It is important to note that in this embodiment, all plaster wall components 2, whether interior or exterior, are cast or printed together. That is, both internal partition walls and external load-bearing walls are constructed simultaneously. This integral molding method helps to form a seamless, continuous structural system, allowing the walls to resist external loads as a whole, thus improving the overall stability and load-bearing capacity of the walls. Furthermore, this construction method simplifies the construction process and reduces the complexity of on-site operations.

[0033] It should also be noted that regardless of whether the plaster walls 2 are constructed using cast-in-place or embossed methods, during construction, all plaster walls 2 must be poured or embossed to the same height and then cured together before being poured or embossed to the next identical height, until reaching the plaster roof elevation. This ensures that all walls solidify and develop strength uniformly within the same timeframe, avoiding stress concentration or uneven settlement caused by inconsistent strength development among different wall sections. Understandably, if a cast-in-place method is used, layered pouring avoids the potential for excessive weight and insufficient initial strength, which could lead to deformation or collapse issues if a continuous, tall wall is poured all at once.

[0034] In this embodiment, the gypsum board 1 in each room is divided into multiple pieces. That is, the floor of each room is not composed of a single piece of gypsum board 1, but rather of two or more pieces. It is understood that the multiple pieces of gypsum board 1 can be divided according to the actual size and shape of the room. During installation, the multiple pieces of gypsum board 1 are placed side-by-side on the floor area of ​​the room. This design not only facilitates the prefabrication of the gypsum board 1, but also makes it easier to transport and hoist it. Before pouring, templates or adhesive strips are sealed to the bottom of the gaps between the multiple pieces of gypsum board 1. During pouring, the gypsum slurry fills the gaps between the multiple pieces of gypsum board 1, connecting them into a whole.

[0035] like Figure 4 , Figure 5 As shown, in this embodiment, at least one annular groove 41 is reserved around the outer periphery of the through hole 4 along its axial direction, and the top surface of the gypsum board 5 is higher than the top of the annular groove by a set height. In this embodiment, the through hole 4 serves to connect the gypsum board 5 and the gypsum wall 2. The annular groove 41 on the outer periphery of the through hole 4 increases the mechanical interlocking area and interlocking effect between the gypsum slurry and the gypsum wall 2, thereby improving the pull-out and shear resistance of the gypsum board 5.

[0036] Understandably, the annular groove can be machined using milling tools after the through hole 4 is opened.

[0037] It is also understandable that the top surface of the gypsum board 5 is set to be higher than the top of the annular groove by a certain height, that is, the bottom surface of the through hole 4 is flush with the gypsum board 5, and the diameter of the through hole 4 is smaller than the thickness of the gypsum board 5. This design ensures that the annular groove can be completely and fully filled after the gypsum board 5 is poured, so as to ensure that the annular groove plays a mechanical interlocking role in the connection structure, thereby improving the shear and pull-out resistance of the connection between the gypsum board 5 and the gypsum wall 2.

[0038] It should be noted that before pouring the gypsum floor slab 5, horizontal fiberglass reinforcing bars are laid on the top surface of the installed gypsum floor slab. These horizontal reinforcing bars are inserted into the through holes 4 to provide horizontal reinforcement to the gypsum floor slab 5, improving its load-bearing capacity and durability. The horizontal fiberglass reinforcing bars are made of fiberglass, which has the advantages of being lightweight, high-strength, corrosion-resistant, easy to cut, and non-magnetic.

[0039] It is also understandable that fiberglass horizontal reinforcing bars are laid on the gypsum floor deck 1 and these horizontal reinforcing bars are inserted into the through holes 4, so that a stronger and more integrated connection is formed between the gypsum floor deck 5 and the gypsum wall 2.

[0040] Since the gypsum board 1 is hoisted from top to bottom, while the gypsum wall 2 is fixed in position, to ensure the proper installation of the gypsum board 1, in this embodiment, the distance between the mounting slots 3 on the two opposing gypsum walls 2 is greater than the length of the gypsum board 1, and the length of the gypsum board 1 is greater than the length between the two opposing gypsum walls 2. It should be noted that this design is to provide sufficient installation leeway, allowing the gypsum board 1 room to move during hoisting and positioning, facilitating installation operations, and reducing construction difficulties caused by dimensional deviations or misalignment. It should also be noted that the distance between the mounting slots 3 refers to the distance between the inner sides of the two opposing mounting slots 3.

[0041] Understandably, designing the length of the gypsum board 1 to be greater than the net length between the two opposing gypsum walls 2 ensures that the gypsum board 1 can fully extend into the installation grooves 3 inside the two gypsum walls 2 after being placed in position, thereby obtaining sufficient support length and anchoring depth. Designing the spacing between the inner sides of the opposing installation grooves 3 to be greater than the length of the gypsum board 1 provides the necessary clearance for the hoisting and placement of the gypsum board 1.

[0042] In this embodiment, no vertical ribs are provided within the gypsum wall 2. The gypsum wall 2 is made by doping fibers into the gypsum slurry, and the gypsum used is high-strength alpha gypsum with a compressive strength of over 50 MPa. It should be noted that the main component of high-strength alpha gypsum is hemihydrate gypsum. Compared with ordinary building gypsum, high-strength alpha gypsum has higher density, lower porosity, and stronger intercrystalline bonding, achieving a compressive strength of over 50 MPa. A compressive strength of over 50 MPa means that the gypsum material can withstand a maximum stress of over 50 MPa before failure under axial pressure. This strength range indicates that high-strength alpha gypsum has excellent load-bearing capacity and structural stability. In addition, the flexural strength of high-strength alpha gypsum is above 12 MPa, the tensile strength is above 10 MPa, and the elastic modulus is above 25 GPa. This indicates that high-strength alpha gypsum has the advantages of high structural strength, resistance to breakage and flexural stress, and excellent tensile strength. Gypsum walls and gypsum floors have good compressive and bending resistance, extremely strong dimensional stability, and can withstand large loads.

[0043] Understandably, this embodiment selects high-strength alpha gypsum as the main material for constructing the gypsum house, ensuring its compressive strength reaches over 50 MPa, thus guaranteeing the overall mechanical properties of the gypsum wall 2 and the gypsum floor slab 5. The excellent compressive strength of high-strength alpha gypsum allows the cast gypsum wall 2 to withstand greater vertical loads, effectively resisting external forces such as the house's own weight, live loads, and wind loads, thereby ensuring the overall structural stability of the gypsum house. Simultaneously, high-strength alpha gypsum also ensures the load-bearing capacity and bending resistance of the gypsum floor slab 5.

[0044] In this embodiment, the safety redundancy of the gypsum board building structure differs between single-story and multi-story conditions: the ratio of the vertical bearing capacity of the walls to the total self-weight load of a single-story gypsum board building is approximately 316.67; for multi-story gypsum board buildings (such as a 6-story gypsum board building), this ratio decreases to approximately 52.78 due to the cumulative vertical load layer by layer. Even with the increase in the number of stories to six and the decrease in the safety reserve factor, the gypsum board building as a whole still possesses a significant safety redundancy, its structural bearing capacity is reliable, and it can fully meet the long-term safe use requirements of multi-story buildings.

[0045] In a single-story plaster building, there is no need to pour a staircase. However, in a two- or three-story plaster building, the construction of a staircase needs to be considered during the actual construction process. In this embodiment, the plaster staircase is poured simultaneously with the completion of the plaster floor slab 5.

[0046] Specifically, while prefabricating gypsum floor slabs 1 according to the room dimensions of each floor of the gypsum board building, prefabricating stair platform slabs and prefabricating stairs according to the dimensions of the stairwell; opening installation slots 3 for stair platform slabs and through holes 4 for stair platform floor slabs at corresponding elevations in the gypsum wall 2 of the stairwell; hoisting the stair platform slabs into the installation slots 3 of the gypsum wall 2 of the stairwell, then laying horizontal fiberglass reinforcing bars on the top surface of the stair platform slabs, and then pouring gypsum slurry to form the stair platform slabs.

[0047] It is important to note that the top surface of the end connecting the stair landing slab to the precast staircase has a pre-drilled step groove, within which multiple vertical connecting pins are embedded. Similarly, the bottom surfaces at both ends of the precast staircase have corresponding inverted step grooves, with multiple connecting holes corresponding to the positions of the vertical connecting pins. After the stair landing slab has cured, the precast staircase is hoisted, aligning the connecting holes with the connecting pins. Then, plaster grout is poured into the connecting holes to complete the connection between the stair landing slab and the precast staircase.

[0048] Example 2 This embodiment discloses a plaster house structure system, which is constructed using the monolithic plaster house construction method disclosed in Embodiment 1. It should be noted that the plaster house is a low-rise building.

[0049] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A method for constructing a monolithic plaster house, characterized in that, The specific steps include: Based on the room dimensions of each floor of the gypsum board building, prefabricate a number of gypsum floor deckings; Based on the total height of the plaster house, the plaster walls are integrally formed up to the plaster roof elevation; After the gypsum wall is completed, installation slots for gypsum floor decking are made at each floor level of the gypsum wall, and T-slots are made on the inner side of the outer wall and through holes are made in the inner wall; the T-slots and through holes are made above the installation slots. Starting from the floor below, gypsum floor slabs are hoisted into the corresponding installation slots. After all the gypsum floor slabs on the current floor are installed, gypsum slurry of a set height is poured onto the floor slabs. After solidification, gypsum floor slabs are obtained, and the gypsum floor slabs and gypsum walls are interlocked into a whole. After the lower gypsum board is completed, the upper gypsum board is hoisted and poured, until the top gypsum board is poured. The gypsum walls, gypsum floor decking, and gypsum floor slabs are made of high-strength alpha gypsum.

2. The method for constructing an integral plaster house as described in claim 1, characterized in that, The gypsum walls are formed by casting or printing, and all the gypsum walls are cast together continuously or in sections to the elevation of the gypsum roof.

3. The method for constructing an integral plaster house as described in claim 1, characterized in that, The gypsum board flooring in each room is divided into multiple pieces.

4. The method for constructing an integral plaster house as described in claim 1, characterized in that, Along the axial direction of the through hole, at least one annular groove is reserved on the outer periphery of the through hole, the bottom surface of the through hole is flush with the bottom surface of the annular groove, and the diameter of the through hole is smaller than the thickness of the gypsum board.

5. The method for constructing an integral plaster house as described in claim 4, characterized in that, Before pouring the gypsum floor slab, fiberglass horizontal reinforcing bars are laid on the top surface of the installed gypsum floor slab, and the horizontal reinforcing bars are inserted into the through holes.

6. The method for constructing an integral plaster house as described in claim 1, characterized in that, The distance between the grooves on the two gypsum walls that are set opposite each other is greater than the length of the gypsum floor decking, and the length of the gypsum floor decking is greater than the length between the two opposite gypsum walls.

7. The method for constructing an integral plaster house as described in claim 1, characterized in that, The high-strength alpha gypsum has a compressive strength of 50 MPa or higher, a flexural strength of 12 MPa or higher, a tensile strength of 10 MPa or higher, and an elastic modulus of 25 GPa or higher.

8. The method for constructing an integral plaster house as described in claim 1, characterized in that, The plaster house was constructed by pouring plaster floor slabs and plaster stairs simultaneously. Based on the dimensions of the stairwell, prefabricate the stair platform deck slabs and prefabricated stairs for each floor; The plaster walls of the stairwell have mounting slots for the stair platform decking and through holes for the stair platform floor slab at the corresponding elevations. The stair platform slab is hoisted into the corresponding installation slot in the stairwell, then fiberglass horizontal reinforcing bars are laid on the top surface of the stair platform slab, and then gypsum slurry is poured to form the stair platform slab. The prefabricated staircase is hoisted after the staircase platform slab has been cured.

9. A method for constructing an integral plaster house as described in claim 8, characterized in that, The top surface of the end of the stair platform slab connected to the precast staircase has a reserved step groove, and multiple vertical connecting pins are pre-embedded in the step groove; the bottom surfaces of both ends of the precast staircase also have reserved inverted step grooves corresponding to the step grooves, and multiple connecting holes corresponding to the positions of the vertical connecting pins are opened on the inverted step grooves.

10. A gypsum board roof structure system, characterized in that, It is constructed using a monolithic plaster house construction method as described in any one of claims 1-9.

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