Novel rammed earth building structure

Abstract

The utility model discloses a novel rammed earth building structure which comprises a foundation, and the foundation is arranged at the position, close to an original rammed earth building wall, reserved after an original building roof is dismantled and used for supporting a novel structure system without disturbing an original rammed earth building structure foundation. The vertical steel columns are arranged on the foundation to form an inner skeleton of the building, and a certain space distance is kept between the vertical steel columns and an original rammed earth building wall; the steel bar truss floor support plate is arranged on the vertical steel columns; the original roof panel connecting structure comprises a square steel pipe, rock wool and a wood veneer, the square steel pipe is used for supporting the connecting part of the original roof panel and the rammed earth building, a gap between the square steel pipe and an original rammed earth building wall is filled with the rock wool, and the wood veneer is used for blocking the connecting position between the square steel pipe and the original rammed earth building wall. The safety, the space practicability and the durability of the dangerous and old building structure are improved, the improvement cost is saved, and application and popularization are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of architectural design, and in particular to a novel rammed earth building structure. Background Technology

[0002] With the acceleration of urbanization, a large number of dilapidated buildings face demolition and reconstruction. Traditional methods for renovating dilapidated buildings with load-bearing exterior walls, such as reinforcement with steel mesh mortar, reinforcement with reinforced concrete slab walls, and the addition of ring beams and structural columns, have problems such as increasing costs, damaging the original facade appearance, and erasing historical and cultural memory. Therefore, designing a new type of rammed earth building structure has become an urgent issue for those skilled in the art. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of rammed earth building structure, thereby solving the aforementioned problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A novel rammed earth building structure, comprising:

[0006] The foundation is set up against the original rammed earth building walls after the original building roof has been demolished, and is used to support the new structural system without disturbing the original rammed earth building foundation.

[0007] Vertical steel columns are set on the foundation to form the "internal skeleton" of the building and maintain a certain spatial distance from the original rammed earth building walls;

[0008] Steel truss floor decking is installed on vertical steel columns, forming a roof structure system that blends the old and new with the existing rammed earth walls.

[0009] The original roof panel connection structure includes square steel pipes, rock wool, and wood veneer panels. The square steel pipes are used to support the connection between the original roof panel and the rammed earth building. The rock wool is used to fill the gap between the square steel pipes and the original rammed earth building walls. The wood veneer panels are used to seal the connection between the square steel pipes and the original rammed earth building walls.

[0010] In some specific embodiments, the vertical steel columns are connected to the foundation by welding or bolting to ensure the stability of the vertical structure.

[0011] In some specific embodiments, the steel truss floor deck is connected to the vertical steel columns by welding or bolting to form a stable roof structure system.

[0012] In some specific embodiments, the square steel pipes are connected to the vertical steel columns and the original rammed earth building walls by welding or bolting to ensure the structural stability of the connection.

[0013] In some specific embodiments, rock wool is used to fill the gap between the square steel pipe and the original rammed earth building wall to provide thermal insulation and sound insulation, and the filling thickness of the rock wool is 50-70mm.

[0014] In some specific embodiments, the wood veneer panel is fixed to the square steel tube by adhesive or nailing to form an aesthetically pleasing outer surface, and the thickness of the wood veneer panel is 6-18mm.

[0015] In some specific embodiments, the foundation is a reinforced concrete structure with embedded parts at the top, and vertical steel columns are connected to the embedded parts to enhance the connection strength between the foundation and the vertical steel columns.

[0016] In some specific embodiments, the steel truss floor deck includes truss reinforcement and floor deck panel, the truss reinforcement is welded below the floor deck panel, and the truss reinforcement is connected to the vertical steel columns.

[0017] In some specific embodiments, a protective layer is provided on the outside of the original rammed earth building wall. The protective layer is made of a waterproof and breathable membrane to protect the original rammed earth building wall from rainwater erosion, while allowing the moisture inside the wall to dissipate.

[0018] In some specific embodiments, the protective layer is fixed to the original rammed earth building wall by anchors with a spacing of 300mm to ensure the stability of the protective layer.

[0019] The beneficial effects of this utility model are as follows: This utility model discloses a novel rammed earth building structure, including a foundation, which is set adjacent to the original rammed earth building walls after the original roof has been demolished, to support the new structural system without disturbing the original rammed earth building foundation; vertical steel columns, which are set on the foundation to form the "internal skeleton" of the building and maintain a certain spatial distance from the original rammed earth building walls; steel truss floor decking, which is set on the vertical steel columns to form the building roof structure system and to form a new and old integrated combination with the original rammed earth building walls; and a connection structure for the original roof panel, including square steel pipes, rock wool, and wood veneer panels. The square steel pipes are used to support the connection between the original roof panel and the rammed earth building, the rock wool is used to fill the gap between the square steel pipes and the original rammed earth building walls, and the wood veneer panels are used to seal the connection between the square steel pipes and the original rammed earth building walls. This utility model improves the structural safety, spatial usability, aesthetics, green energy efficiency, and durability of dilapidated buildings, while preserving the original building facade. It also has many advantages such as saving renovation costs, enhancing building value, promoting surrounding commercial interaction, extending building lifespan, being environmentally friendly, and preserving historical memory. It provides a sustainable solution for urban renewal and rural revitalization, is highly feasible, and is easy to promote and apply. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a novel rammed earth building structure according to this utility model.

[0021] In the attached diagram: 1. Foundation; 2. Existing rammed earth building walls; 3. Vertical steel columns; 4. Steel truss floor deck. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0023] Reference Figure 1 The novel rammed earth building structure shown includes:

[0024] Foundation 1 is located adjacent to the original rammed earth building wall 2, which is retained after the original building roof has been demolished. It is used to support the new structural system without disturbing the original rammed earth building structure foundation 1.

[0025] In this embodiment, the foundation 1 is a newly added reinforced concrete foundation 1 installed adjacent to the original rammed earth building wall 2 after the original building roof is demolished. Metal embedded parts are pre-embedded in the newly added reinforced concrete foundation 1, and the vertical steel column 3 is connected to the embedded parts to enhance the connection strength between the foundation 1 and the vertical steel column 3, ensure the stability of the vertical structure, and at the same time not disturb the original rammed earth building structure foundation 1.

[0026] Vertical steel columns 3 are set on foundation 1 to form the "internal skeleton" of the building and maintain a certain spatial distance from the original rammed earth building walls 2.

[0027] Vertical steel columns 3 are installed on foundation 1, forming the "internal skeleton" of the building, and maintaining a certain spatial distance from the existing rammed earth walls 2 to avoid mutual interference. Where new door and window openings are added to the rammed earth walls, the vertical steel columns 3 are fixedly connected to the door and window openings through connectors to ensure the integrity of the structure.

[0028] The steel truss floor deck 4 is installed on the vertical steel column 3, forming a building roof structure system and a combination of old and new with the original rammed earth building wall 2.

[0029] The original roof panel connection structure includes square steel pipes, rock wool, and wood veneer panels. The square steel pipes are used to support the connection between the original roof panel and the rammed earth building. The rock wool is used to fill the gap between the square steel pipes and the original rammed earth building wall 2. The wood veneer panels are used to seal the connection between the square steel pipes and the original rammed earth building wall 2.

[0030] In this embodiment, it should be noted that in practical applications, the specific location and connection method of the square steel pipe should be determined according to the detailed architectural design drawings and construction requirements.

[0031] For example, the placement of square steel pipes is as follows:

[0032] Connection and support location: The square steel pipe is a key support component for the connection between the original roof panel and the rammed earth building. It is installed at the junction of the original roof panel, the vertical steel column 3, and the original rammed earth building wall 2. Specifically, one end of the square steel pipe is connected to the vertical steel column 3, and the other end extends to a specific connection point of the original rammed earth building wall 2 to form a stable support structure and ensure a reliable connection between the original roof panel and the old and new building structures.

[0033] Void Filling Location: There are certain gaps between the square steel pipes and the existing rammed earth building wall 2. These gaps are filled with rock wool to provide thermal insulation and sound insulation. The placement of the square steel pipes is designed to ensure that the rock wool can effectively fill these gaps, thereby enhancing the performance of the entire structure.

[0034] Decorative sealing location: The connection between the outer side of the square steel pipe and the existing rammed earth building wall 2 will be sealed with wood veneer panels to ensure the aesthetics and airtightness of the building's appearance. The placement of the square steel pipe needs to be coordinated with the installation of the wood veneer panels to ensure that the panels fit tightly and form a seamless outer surface.

[0035] Relationship with door and window openings: When adding door and window openings in rammed earth walls, the square steel pipes need to be compatible with the door and window structure. This may involve special settings or adjustments around the door and window openings to ensure the normal installation and use of the doors and windows, while maintaining the stability of the structure and the overall aesthetics.

[0036] Connection to Concrete Foundation 1: The bottom of the square steel pipe may need to be connected to the new concrete foundation 1 to transfer loads and enhance the overall structural integrity. This connection method requires ensuring that the position of the square steel pipe accurately corresponds to the embedded parts in the concrete foundation 1 for secure welding or bolting.

[0037] In some specific embodiments, the vertical steel column 3 is connected to the foundation 1 by welding or bolting to ensure the stability of the vertical structure.

[0038] In some specific embodiments, the steel truss floor deck 4 is connected to the vertical steel column 3 by welding or bolting to form a stable roof structure system.

[0039] In some specific embodiments, the square steel pipe is connected to the vertical steel column 3 and the original rammed earth building wall 2 by welding or bolting to ensure the structural stability of the connection part.

[0040] In some specific embodiments, rock wool is used to fill the gap between the square steel pipe and the original rammed earth building wall 2, serving as a heat insulation and sound insulation function, and the filling thickness of the rock wool is 50-70mm.

[0041] In some specific embodiments, the wood veneer panel is fixed to the square steel tube by adhesive or nailing to form an aesthetically pleasing outer surface, and the thickness of the wood veneer panel is 6-18mm.

[0042] In some specific embodiments, the foundation 1 is a reinforced concrete structure with embedded parts at its top, and the vertical steel column 3 is connected to the embedded parts to enhance the connection strength between the foundation 1 and the vertical steel column 3.

[0043] In some specific embodiments, the steel truss floor deck 4 includes truss reinforcement and floor deck panel, the truss reinforcement is welded below the floor deck panel, and the truss reinforcement is connected to the vertical steel column 3.

[0044] The steel truss floor deck 4 is installed on the vertical steel columns 3, forming the building roof structure system. The truss reinforcement is fixed to the vertical steel columns 3 by welding or bolting, forming a new and old integrated combination with the original rammed earth building walls.

[0045] It should be further explained that in the aforementioned new rammed earth building structure, the steel truss floor deck 4 is a key component, and its connection with the vertical steel column 3 is as follows:

[0046] The composition of the steel truss floor deck 4 is as follows:

[0047] Truss reinforcement: A truss structure welded from top chord reinforcement, bottom chord reinforcement and web reinforcement, located below the floor deck panel, serving to support and reinforce the structure.

[0048] Floor decking: usually profiled steel sheet, used to support concrete and serve as formwork during construction. It also works with the concrete after it hardens to form a composite floor slab.

[0049] Connection between truss reinforcement and vertical steel column 3

[0050] Welded connection:

[0051] At the construction site, the lower chord reinforcement of the truss is welded to the vertical steel column 3. First, the reinforcement is positioned to ensure a tight fit, then welding processes such as arc welding are used for connection. Welding parameters must be strictly controlled to guarantee connection strength, and quality inspections are conducted.

[0052] When the truss reinforcement is prefabricated in the factory, the top chord reinforcement, bottom chord reinforcement and web reinforcement are connected by spot welding to form a truss structure, ensuring its geometric stability and ability to withstand various loads during construction and use.

[0053] Sheet bolt connection:

[0054] Studs are pre-welded onto the vertical steel column 3. Then, the lower chord reinforcement of the truss reinforcement and the studs are inserted through the pre-drilled holes, utilizing the shear strength of the studs to transfer the shear force between the floor slab and the steel column. A pull-out test is required after the studs are welded to ensure the connection strength.

[0055] Embedded part connection:

[0056] During the pouring or installation of vertical steel column 3, embedded parts (such as steel plates or reinforcing bars) should be installed in advance. After the truss reinforcing bars are transported to the site, their lower chord reinforcing bars should be fixed to the embedded parts by welding or bolting. The position of the embedded parts must be precise to ensure the accuracy of subsequent installation.

[0057] The arrangement and connection method of the steel truss floor deck 4 makes the connection between the floor deck and the vertical steel column 3 firm and reliable, effectively transferring internal forces and ensuring the stability and safety of the building structure.

[0058] In some specific embodiments, a protective layer is provided on the outside of the original rammed earth building wall 2. The protective layer is made of a waterproof and breathable membrane to protect the original rammed earth building wall 2 from rainwater erosion, while allowing the moisture inside the wall to dissipate.

[0059] In some specific embodiments, the protective layer is fixed to the existing rammed earth wall 2 by anchors spaced 300mm apart to ensure the stability of the protective layer. This protects the existing rammed earth wall 2 from rainwater erosion while allowing moisture inside the wall to dissipate.

[0060] New rammed earth building structure construction method

[0061] I. Preparatory Work

[0062] Before construction, the following preparatory work needs to be completed:

[0063] A detailed survey of the existing rammed earth buildings was conducted, including the wall structure, roof condition, and foundation stability, to provide an accurate basis for subsequent construction.

[0064] Based on the actual conditions of the building and design requirements, a detailed construction plan is developed, including a construction schedule, a list of materials, and personnel arrangements.

[0065] Prepare the necessary construction materials, such as reinforced concrete, vertical steel columns 3, steel truss floor decking 4, square steel pipes, rock wool, wood veneer panels, waterproof and breathable membranes, anchors, etc., and ensure that the quality of the materials meets the relevant standards.

[0066] Organize technical briefings for construction personnel to familiarize them with the construction process, operating procedures, and safety precautions.

[0067] II. Foundation Construction

[0068] After removing the existing roof, foundation construction will begin:

[0069] At the location adjacent to the existing rammed earth building wall 2, excavate the foundation pit. The size of the foundation pit should meet the design requirements.

[0070] Pour a reinforced concrete foundation, embedding metal parts within it for subsequent connection to the vertical steel column 3. The foundation dimensions, reinforcement configuration, and concrete strength grade should conform to the design specifications.

[0071] The foundation must be cured to ensure that the concrete reaches the design strength before proceeding to the next stage of construction.

[0072] III. Installation of Vertical Steel Column 3

[0073] Install vertical steel columns 3 on the foundation:

[0074] The vertical steel column 3 is connected to the foundation embedded parts by welding or bolting to ensure a firm and reliable connection.

[0075] Use measuring instruments to check the verticality of the vertical steel column 3. The deviation should be controlled within the allowable range to ensure the stability of the structure.

[0076] The vertical steel column 3 was temporarily fixed to prevent displacement during subsequent construction.

[0077] IV. Laying of Steel Truss Floor Slabs

[0078] A steel truss floor slab 4 is laid on the vertical steel column 3:

[0079] Transport the steel truss floor slab 4 to the construction site and check whether its appearance quality and dimensions meet the requirements.

[0080] Place the steel truss floor slab 4 on the vertical steel column 3, ensuring that the truss reinforcement is tightly fitted to the vertical steel column 3.

[0081] The steel truss floor deck 4 is fixedly connected to the vertical steel column 3 by welding or bolting to form a stable roof structure system.

[0082] V. Construction of the original roof panel connection structure

[0083] Construction was carried out on the connection between the original roof panel and the rammed earth structure:

[0084] Install square steel pipes, connecting one end to the vertical steel column 3 and the other end to the existing rammed earth wall 2. Welding or bolting can be used to ensure the stability of the square steel pipes.

[0085] Rock wool is filled into the gap between the square steel pipe and the original rammed earth building wall 2, with a filling thickness of 50-70mm, to achieve heat preservation and sound insulation functions.

[0086] Use wood veneer panels to seal the connection between the square steel pipe and the existing rammed earth wall 2. The wood veneer panels can be fixed to the square steel pipe by gluing or nailing to form an aesthetically pleasing exterior surface.

[0087] VI. Installation of Protective Layer

[0088] Install a protective layer on the outside of the existing rammed earth building wall 2:

[0089] The waterproof and breathable membrane is fixed to the existing rammed earth building wall 2 using anchors with a spacing of 300mm to ensure the stability of the protective layer.

[0090] The overlapping areas of the waterproof and breathable membrane are sealed to prevent rainwater from seeping in. At the same time, this ensures that moisture inside the wall can dissipate, protecting the original rammed earth building walls from rainwater erosion.

[0091] VII. Quality Inspection and Acceptance

[0092] After construction is completed, a quality inspection and acceptance process will be conducted.

[0093] Check whether all construction work meets the design requirements and relevant specifications and standards.

[0094] The stability of the structure, the strength of the connections, and the performance of the materials are the main focus of the inspection.

[0095] Any problems discovered should be rectified promptly to ensure that the project quality meets the required standards.

[0096] It should be noted that adjustments and optimizations should be made according to specific circumstances during the actual construction process to ensure construction quality and safety.

[0097] Example

[0098] In an urban renewal project, there was an old rammed earth building constructed in the 1980s. Due to its age, its structural safety could no longer meet modern usage requirements, but the building's facade had significant historical and cultural value and needed to be preserved. Therefore, we adopted the aforementioned new rammed earth building structure to renovate and reinforce it.

[0099] Foundation Construction: First, the roof of the original building was demolished, retaining the original rammed earth wall 2. A reinforced concrete foundation was poured adjacent to the original rammed earth wall 2. The foundation dimensions were determined according to the overall structural design of the building, with a width of 500mm and a depth of 600mm to ensure it could withstand the loads of any subsequent additions to the structure. Simultaneously, [Φ22, spaced @300mm] metal inserts were pre-embedded at the top of the foundation for future connection to the vertical steel columns 3.

[0100] Vertical steel column 3 installation: On the newly constructed foundation, vertical steel column 3, H250×250×9×14mm, was installed according to the design drawings. Vertical steel column 3 is made of hot-rolled H-beams, and its height is determined based on the number of building floors and floor height, set at 4.5m. The steel columns are connected via metal embedded parts pre-embedded in the foundation, using E43 type welding rods for manual arc welding to ensure the strength and reliability of the connection, thus forming the building's "internal skeleton" structure. During construction, the verticality of vertical steel column 3 was strictly controlled, with deviations kept within 1 / 1000.

[0101] Steel truss floor deck 4 installation: Steel truss floor deck 4 is laid on the vertical steel columns 3. This floor deck consists of Φ12mm truss reinforcement bars and a 1.2mm thick galvanized steel floor deck panel. The truss reinforcement bars are spot-welded together below the floor deck panel to form an integral truss structure. The steel truss floor deck 4 is prefabricated in the factory and then transported to the construction site for installation. During installation, the truss reinforcement bars are bolted to the vertical steel columns 3 to ensure the stability between the floor deck and the steel columns, forming a reliable roof structure system.

[0102] Construction of the original roof panel connection structure: For the connection between the original roof panel and the rammed earth structure, square steel pipes were used for support. The square steel pipes were selected as [200×200×6mm], one end of which was bolted to the vertical steel column 3, and the other end was connected to the original rammed earth wall 2, forming a stable support system. The gap between the square steel pipes and the original rammed earth wall 2 was filled with 60mm thick rock wool to achieve thermal insulation and soundproofing. Simultaneously, 12mm thick wood veneer panels were used to seal the connection between the square steel pipes and the original rammed earth wall 2. The wood veneer panels were fixed to the square steel pipes by adhesive and nails, forming an aesthetically pleasing outer surface.

[0103] Protective Layer Installation: A waterproof and breathable membrane was installed as a protective layer on the outside of the existing rammed earth wall 2. The membrane, made of 1.5mm thick PE polyethylene, was fixed to the existing rammed earth wall 2 using anchors. Φ10mm expansion bolts were used as anchors, with a strict spacing of 300mm to ensure the stability of the protective layer. The overlaps of the membrane were sealed with sealing tape to prevent rainwater infiltration while allowing moisture from inside the wall to escape, effectively protecting the existing rammed earth wall 2 from rainwater erosion.

[0104] The novel rammed earth building structure in this embodiment not only preserves the original building's facade appearance, but also significantly improves the building's structural safety, spatial practicality, aesthetics, green energy efficiency, and durability, thus realizing the sustainable renovation and upgrading of dilapidated buildings.

[0105] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0106] This utility model discloses a novel rammed earth building structure, including a foundation, which is set adjacent to the original rammed earth building wall 2 after the original roof has been demolished, to support the new structural system without disturbing the original rammed earth building foundation; vertical steel columns 3, which are set on the foundation to form the "internal skeleton" of the building and maintain a certain spatial distance from the original rammed earth building wall 2; steel truss floor deck 4, which is set on the vertical steel columns 3 to form the building roof structure system and form a new and old integrated combination with the original rammed earth building wall 2; and the original roof panel connection structure, including square steel pipes, rock wool and wood veneer panels, where the square steel pipes are used to support the connection between the original roof panel and the rammed earth building, the rock wool is used to fill the gap between the square steel pipes and the original rammed earth building wall 2, and the wood veneer panels are used to seal the connection between the square steel pipes and the original rammed earth building wall 2. This utility model improves the structural safety, spatial usability, aesthetics, green energy efficiency, and durability of dilapidated buildings, while preserving the original building facade. It also has many advantages such as saving renovation costs, enhancing building value, promoting surrounding commercial interaction, extending building lifespan, being environmentally friendly, and preserving historical memory. It provides a sustainable solution for urban renewal and rural revitalization, is highly feasible, and is easy to promote and apply.

[0107] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel rammed earth building structure, characterized in that, include: The foundation (1) is set at the position adjacent to the original rammed earth building wall (2) after the original building roof is demolished, and is used to support the new structural system without disturbing the original rammed earth building structure foundation. Vertical steel columns (3) are set on the foundation (1) to form the "inner skeleton" of the building and maintain a certain spatial distance from the original rammed earth building wall (2); The steel truss floor deck (4) is set on the vertical steel column (3) to form a building roof structure system and form a combination of old and new with the original rammed earth building wall (2); The original roof panel connection structure includes square steel pipes, rock wool, and wood veneer panels. The square steel pipes are used to support the connection between the original roof panel and the rammed earth building. The rock wool is used to fill the gap between the square steel pipes and the original rammed earth building walls. The wood veneer panels are used to seal the connection between the square steel pipes and the original rammed earth building walls.

2. The novel rammed earth building structure according to claim 1, characterized in that, The vertical steel column (3) is connected to the foundation (1) by welding or bolting to ensure the stability of the vertical structure.

3. The novel rammed earth building structure according to claim 1, characterized in that, The steel truss floor deck (4) is connected to the vertical steel column (3) by welding or bolting to form a stable roof structure system.

4. The novel rammed earth building structure according to claim 1, characterized in that, The square steel pipe is connected to the vertical steel column (3) and the original rammed earth building wall (2) by welding or bolting to ensure the structural stability of the connection part.

5. The novel rammed earth building structure according to claim 1, characterized in that, The rock wool is filled in the gap between the square steel pipe and the original rammed earth building wall (2) to provide thermal insulation and sound insulation, and the filling thickness of the rock wool is 50-70mm.

6. The novel rammed earth building structure according to claim 1, characterized in that, The wood veneer panel is fixed to the square steel tube by adhesive or nailing to form an aesthetically pleasing outer surface, and the thickness of the wood veneer panel is 6-18mm.

7. The novel rammed earth building structure according to claim 1, characterized in that, The foundation (1) is made of reinforced concrete and has an embedded part on its top. The vertical steel column (3) is connected to the embedded part to enhance the connection strength between the foundation (1) and the vertical steel column (3).

8. The novel rammed earth building structure according to claim 1, characterized in that, The steel truss floor deck (4) includes truss reinforcement and floor deck panel. The truss reinforcement is welded below the floor deck panel and is connected to the vertical steel column (3).

9. The novel rammed earth building structure according to claim 1, characterized in that, The original rammed earth building wall (2) is provided with a protective layer on the outside. The protective layer is made of a waterproof and breathable membrane to protect the original rammed earth building wall (2) from rainwater erosion, while allowing the moisture inside the wall to dissipate.

10. The novel rammed earth building structure according to claim 9, characterized in that, The protective layer (8) is fixed to the original rammed earth building wall (2) by anchors with a spacing of 300mm to ensure the stability of the protective layer.

Images