Archaistic city wall integral structure system and construction method thereof

Abstract

The invention discloses an antique city wall integral structure system and a construction method thereof, and relates to the technical field of ancient building repair and antique architecture.The concrete structure of the antique city wall integral structure system comprises a concrete foundation; the embedded parts are arranged in the concrete foundation; the square steel is obliquely arranged on the concrete foundation, the bottom of the square steel is connected with the embedded part, and the top of the square steel is connected with the concrete beam; the wallboards are arranged between the adjacent square steels; the angle steel is horizontally mounted on the square steel and distributed at intervals in the height direction of the square steel; and the multiple layers of antique wall bricks are arranged on the angle steel. The invention further discloses a construction method of the antique city wall overall structure system. The technical problem that in the prior art, a hyperboloid antique wall is difficult to construct is solved.

Description

Technical Field

[0001] This invention relates to the field of ancient building restoration and imitation ancient building technology, and in particular to an integrated structural system for imitation ancient city walls and its construction method. Background Technology

[0002] Replica ancient city walls are widely used in tourist attractions, cultural parks, historical district renovation projects, etc., to restore historical features or create an ancient atmosphere.

[0003] In existing building structures, the structural type of imitation ancient city walls is typically a reinforced concrete frame structure. In this structure, thick infill brick walls are installed between the longitudinal frame columns, and the outer city wall bricks are then bonded together with mortar. The main purpose of this design is to increase the stability and durability of the wall, while also providing some thermal insulation and soundproofing. However, due to the sloping nature of the outer city wall and its considerable height, the infill brick walls are usually quite thick, necessitating various reinforcement measures to ensure the stability of the sloping wall itself. Furthermore, the connection between the outer city wall bricks and the sloping wall is achieved through mortar bonding; due to the considerable height, there is also a safety hazard of the bricks falling.

[0004] A search revealed that patent CN220849116U discloses an outer wall structure for an imitation ancient city wall. This new structure replaces the previous method of bonding the outer wall bricks and the sloping wall with mortar. Instead, it uses rows of precast reinforced concrete slabs with embedded reinforcing bars connected to a two-way steel mesh. The two-way steel mesh and the outer wall bricks are connected by tie bars to achieve a stable and reliable connection, effectively preventing the safety hazard of falling bricks. While this solution effectively prevents the safety hazard of falling bricks, it is complex and difficult to construct. It requires prefabrication of the two-way steel mesh and tie bars according to the different sizes of the wall bricks, and demands high precision. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated structural system for imitation ancient city walls and its construction method, which solves the technical problem of difficult construction of hyperboloid imitation ancient walls in the prior art.

[0006] This application discloses an integrated structural system for an imitation ancient city wall, including: Concrete foundation; If an embedded component is to be installed, it shall be placed inside the concrete foundation; Several square steel bars are inclinedly placed on the concrete foundation, with the bottom of the square steel bars connected to the embedded parts and the top connected to the concrete beam; Several wall panels are disposed between adjacent square steel bars; Several angle steels are horizontally installed on the square steel, and the angle steels are spaced apart along the height direction of the square steel; Several layers of antique-style wall bricks are set on the angle steel.

[0007] This application involves welding angle steel to square steel, then fixing precast concrete wall panels between adjacent square steel, and finally laying wall bricks on the angle steel. The operation is simple and convenient. The completed outer wall of the city wall will be divided into multiple sections in the vertical direction and placed on the corresponding angle steel. The weight will be evenly distributed on the concrete foundation and concrete beams through the square steel, thereby ensuring the stability of the outer wall.

[0008] Based on the above technical solution, the embodiments of this application can be further improved as follows: Furthermore, the wall panel is a precast reinforced concrete wall panel, and several internally threaded pipes are pre-embedded on both sides of the wall panel, which can improve the overall coordination and ensure the overall appearance. The square steel has a through hole, and a connecting bolt that mates with the internally threaded pipe is installed inside the through hole. The advantage of this step is that the internally threaded pipe and the connecting bolt can ensure the stability of the wall panel after installation.

[0009] Furthermore, a connector is provided on the side of the concrete beam facing the square steel, and the connector is fixed to the square steel. The beneficial effect of this step is that the connection between the square steel and the concrete beam can be guaranteed by the connector.

[0010] Furthermore, a cement mortar layer is provided between the antique-style wall bricks and the wall panel. The beneficial effect of this step is to ensure the stability of the wall through the cement mortar layer.

[0011] Furthermore, the number of layers of antique-style wall bricks between adjacent angle steels is 4-8 layers.

[0012] Furthermore, some of the antique-style wall tiles are acrylic tiles, and the beneficial effect of using this step is to improve the practicality of the wall.

[0013] Furthermore, the angle between the square steel and the horizontal plane is 80-86°.

[0014] This application also discloses a construction method for an integrated structural system of an ancient city wall, including the following steps: S1: Prepare antique-style wall tiles; S2: Excavate the foundation trench and construct the reinforced concrete foundation; S3: Locate and mark the antique-style wall tiles on the first floor; S4: Install the overall frame, and then build it layer by layer; S5: Install acrylic bricks, perform curing, grouting and surface treatment, install precast reinforced concrete wall panel backing, and complete the wall construction.

[0015] Based on the above technical solution, the embodiments of this application can be further improved as follows: Furthermore, the installation method of the overall frame in step S4 is as follows: First, install the square steel, then fix the angle steel. The square steel is fixed to the embedded parts of the concrete foundation, and the angle steel is fixed to the square steel.

[0016] Furthermore, the wall is a hyperboloid wall.

[0017] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. In this application, after fixing the square steel to the concrete foundation and concrete beam, the angle steel is welded and fixed to the square steel at the required interval. Then, precast concrete wall panels are fixedly installed between adjacent square steels, and wall bricks are then laid on the angle steel. The operation is simple and convenient. The completed outer wall of the city wall will be divided into multiple sections in the vertical direction and placed on the corresponding angle steels. The weight is evenly distributed on the concrete foundation and concrete beams through the square steel, thereby ensuring the stability of the outer wall.

[0018] 2. The antique-style wall bricks in this application can be customized according to the situation, avoiding the quality fluctuations of on-site manual masonry and ensuring the uniformity and beauty of the city wall's appearance.

[0019] 3. This application transforms discrete masonry blocks into a high-strength structure that works as a whole by combining square steel and angle steel with an internal cast-in-place reinforced concrete skeleton. Its seismic and impact resistance is far superior to traditional masonry, and it allows for rapid positioning and installation, greatly improving construction efficiency and shortening the construction period.

[0020] 4. The structural system disclosed in this application has been tested and verified under numerical analysis, wind load, and seismic load conditions, demonstrating structural reliability. It can be further refined using BIM to guide construction, with 3D digital modeling and brick coding to precisely control the dimensions of prefabricated materials, ensuring accuracy in masonry and installation.

[0021] 5. This application also discloses a construction method for an overall structural system of an imitation ancient city wall, which is not only suitable for newly built imitation ancient city walls, but also suitable for internal reinforcement and repair of old city walls, and can greatly improve their structural safety without damaging the external historical appearance. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structural system of an imitation ancient city wall as described in specific embodiment 1 of the present invention; Figure 2 for Figure 1 Schematic diagram of steel distribution in China; Figure 3 for Figure 1 Schematic diagram of the distribution of the central wall panels; Figure 4 for Figure 1 A schematic diagram of the connection between the central wall panel and the square steel. Figure 5 The stress cloud diagram of the square steel during the load-bearing capacity analysis of the overall structural system of the ancient city wall described in Specific Embodiment 1 of the present invention; Figure 6 The displacement cloud diagram of the square steel during the load-bearing capacity analysis of the imitation ancient city wall integrated structural system described in Specific Embodiment 1 of the present invention; Figure 7 The stress cloud diagram of the angle steel during the load-bearing capacity analysis of the overall structural system of the ancient city wall described in Specific Embodiment 1 of the present invention; Figure 8 The displacement cloud diagram of the angle steel during the load-bearing capacity analysis of the overall structural system of the ancient city wall described in Specific Embodiment 1 of the present invention; Figure 9 The stress cloud diagram of the brick wall during the load-bearing capacity analysis of the overall structural system of the ancient city wall described in Specific Embodiment 1 of the present invention; Figure 10 The displacement cloud diagram of the brick wall during the load-bearing capacity analysis of the overall structural system of the ancient city wall described in Specific Embodiment 1 of the present invention; Figure 11 The wall BIM layout drawing is generated by the construction method of the overall structural system of the ancient city wall described in specific embodiment 2 of the present invention. Figure 12 for Figure 11 Another perspective diagram.

[0024] The attached figures are labeled as follows: 1-Concrete foundation; 2-Embedded parts; 3-Square steel; 4-Concrete beam; 5-Wall panel; 6-Angle steel; 7-Antique wall bricks; 8-Threaded pipe; 9-Perforation; 10-Connecting bolt; 11-Connecting parts. Detailed Implementation

[0025] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0026] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0027] In this application, unless otherwise expressly specified and limited, the terms "connection," "setup," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0029] Example 1: like Figure 1-4 As shown, this application discloses an overall structural system for an imitation ancient city wall, which changes the existing stacking method and achieves the effect of "ancient exterior and new interior, fast and slow combination" through a composite technical route of "prefabricated structural frame + masonry wall + prefabricated wall panel". The specific structure of this application includes: Concrete foundation 1, which was constructed according to actual needs; If the embedded part 2 is installed inside the concrete foundation 1, the embedded part 2 is an existing component used to install subsequent components, such as square steel components, to form a structural frame; Several square steel bars 3 are inclinedly set on the concrete foundation 1. The bottom of the square steel bars 3 is connected to the embedded part 2, and the top is connected to the concrete beam 4. A frame is formed by connecting the square steel bars 3 and the concrete beam 4. There are multiple square steel bars 3, which are distributed horizontally at intervals. Several wall panels 5 are set between adjacent square steel bars 3 to support the subsequent antique-style wall bricks and ensure the stability of the entire wall surface. Several angle steels 6 are horizontally installed on the square steel 3, and the angle steels 6 are spaced apart along the height direction of the square steel 3. The angle steels 6 and the square steel 3 cooperate to form a support frame, which facilitates the subsequent stacking of antique wall bricks. Several layers of antique-style wall bricks 7 are placed on the angle steel 6; after the antique-style wall bricks 7 in this application are stacked, a wall is formed.

[0030] This application involves fixing square steel to the concrete foundation and concrete beams, then welding angle steel to the square steel at the required intervals, installing wall panels between adjacent square steel, and finally laying wall bricks on the angle steel. The operation is simple and convenient. The completed outer wall of the city wall will be divided into multiple sections in the vertical direction and placed on the corresponding angle steel. The weight will be evenly distributed to the concrete foundation and concrete beams through the square steel, thereby ensuring the stability of the outer wall.

[0031] The wall bricks in this application can be customized in size according to specific circumstances. For example, they can be prefabricated city wall blocks of 190mm×90mm×90mm. These prefabricated city wall blocks are produced in a standardized factory, ensuring controllable appearance quality and dimensional accuracy. This avoids quality fluctuations associated with on-site manual masonry, guaranteeing a uniform and aesthetically pleasing appearance of the city wall. By connecting the internal cast-in-place reinforced concrete framework with square and angle steel, the discrete blocks are transformed into a unified, high-strength structure. This structure offers significantly superior earthquake and impact resistance compared to traditional masonry, and allows for rapid positioning and installation, greatly improving construction efficiency and shortening the construction period.

[0032] The wall panel 5 in this application is a precast reinforced concrete wall panel, and several internally threaded pipes 8 are pre-embedded on both sides of the wall panel 5. The square steel 3 has a through hole 9, and a connecting bolt 10 that mates with the internally threaded pipe 8 is installed inside the through hole 9; this application adds a wall panel 5, which, together with the subsequent connecting bolt 10, can be stably connected to the square steel, and finally, the stability of the wall is formed.

[0033] To further ensure the stability of the frame, the concrete beam 4 in this application is provided with a connector 11 on the side facing the square steel 3, and the connector 11 is fixed to the square steel 3; the connector can further ensure the stability of the connection of components such as angle steel and square steel.

[0034] Furthermore, a cement mortar layer is provided between the antique-style wall bricks 7 and the wall panel 5. In addition to bonding adjacent antique-style wall bricks 7, the cement mortar layer can also bond the back of the antique-style wall bricks 7 to the outer wall of the precast reinforced concrete wall panel 5, thereby improving the strength of the city wall.

[0035] Among them, the number of layers of antique wall bricks 7 between adjacent angle steels 6 is 4-8.

[0036] Specifically, some of the antique-style wall bricks 7 are acrylic bricks. These acrylic bricks can be expanded to have new uses such as decoration, lighting, and temporary construction, while also enabling partial visualization of the city wall. They are particularly suitable for lightweight and personalized building and landscape requirements. The square steel 3 has an angle of 80-86° with the horizontal plane, which makes it easy to match the slope of the exterior wall in the vertical direction.

[0037] The structural system described in this application can solve the construction problems of ancient-style hyperboloid barbican walls in the new era. The steel structure has excellent seismic performance and is suitable for prefabricated construction. The combination of steel frame, angle steel, and frame structure is safe and reliable. This application applies BIM technology and numerical analysis technology, which can improve processing efficiency, reduce material waste, and improve the level of green construction and operation and maintenance. This application can carry out layered and segmented orderly construction, ensuring the continuity of the wall. Through the fullness of mortar joints and the quality control of grouting, a transparent waterproof layer can be applied to the surface layer, and drainage ditches are set in the structural layer to reduce the risk of leakage in the later stage.

[0038] Further explanation is provided regarding this application: Solid element modeling was performed on the structure of this application, and load-bearing capacity analysis was conducted. The steel (square steel, angle steel, etc.) was Q235 steel, the bricks were MU7.5, and the mortar was M5.0. All components were modeled using eight-node hexahedral elements. The mesh size of the brick wall was 90mm, and the mesh size of the square steel tube column and the angle steel was 30mm.

[0039] Under the combined action of wind load and self-weight load, the stress contour diagram and displacement contour diagram of the square steel are as follows: Figure 5 and Figure 6 As shown in the figure, the maximum stress occurs in the middle of the column, with a magnitude of 61.80 MPa, which is much smaller than the design yield strength of the steel (215 MPa). This indicates that the steel strength meets the requirements and has a large margin. The maximum displacement is 4.53 mm, indicating that the deformation of the square steel column under load is very small, with D / L ≤ 1 / 500, which meets the requirements.

[0040] The stress contour diagrams and displacement contour diagrams of all angle steels are as follows: Figure 7 and Figure 8 As shown, the maximum stress is only 24.21 MPa, which is much smaller than the design yield strength of the steel (215 MPa), and has a large margin. The maximum displacement is 4.71 mm, and D / L ≤ 1 / 500, which meets the requirements.

[0041] The stress contour plot and displacement contour plot of the brick wall are as follows: Figure 9 and Figure 10 As shown in the figure, the maximum stress is 0.838 MPa. According to the "Code for Design of Masonry Structures" (GB50003-2011), the design value of the compressive strength of this brick wall is 1.71 MPa. Since 0.838 < 1.71, the strength of the brick wall meets the requirements. The maximum displacement is 5.608 mm, the deformation is very small, and D / L ≤ 1 / 500, which also meets the requirements.

[0042] Under the action of wind load and gravity load, the load transfer path is as follows: the load is first borne by the brick wall, and then the brick wall transfers the load to the angle steel. Under the combined action of gravity load and wind load, the angle steel is mainly subjected to bending and shear. The two ends of the angle steel are approximately hinged to the column, so the stress at the mid-span of the angle steel is the greatest. Finally, the angle steel transfers the load to the column. The column is supported by the foundation and the inter-story concrete beam, and can be approximately regarded as a multi-span continuous beam. The stress is the greatest at the middle support.

[0043] Because the transmission path is clear and reasonable, the bearing capacity and serviceability limit state of the overall brick wall structure meet the requirements of the code under the combined action of wind load and gravity load.

[0044] Example 2: This application also discloses a construction method for an integrated structural system of an ancient city wall, which is the structure in Example 1, and includes the following steps: S1: Prepare antique-style wall bricks, specifically including the following steps: verify the dimensions of the antique-style wall bricks (precast city wall blocks), and check the compressive strength, appearance color difference deviation, water absorption rate, etc.; study the initial setting time, final setting time, and crack resistance (shrinkage rate) parameters of the crack-resistant antique-style mortar, where the dimensions can be 380×190×90mm or 190×90×90mm, depending on the design; S2: Excavate the foundation trench and construct the reinforced concrete foundation to ensure the safety and reliability of the foundation structure; S3: Locate and mark the antique-style wall tiles on the first floor to facilitate understanding of their overall position later. S4: Install the overall frame, and then build the masonry layer by layer. The installation method of the overall frame is as follows: first install the square steel, and then fix the angle steel. The square steel is fixed to the embedded parts of the concrete foundation, and the angle steel is fixed to the square steel. 100*150*6mm hot-dip galvanized steel square tubes and 100*63*8mm hot-dip galvanized angle steel can be used. The masonry method is as follows: lay the bricks layer by layer with staggered joints, one header and one stretcher, two headers and one stretcher, or three headers and one stretcher, or five headers and one stretcher. S5: Install acrylic bricks, perform curing, grouting and surface treatment, install precast reinforced concrete wall panel backing, complete the wall construction, strengthen the curing of antique wall bricks (precast city wall block bricks) to ensure the overall structure is reliable, grout the gaps between them, and perform artistic treatments such as aging and staining on the wall surface to enhance the antique effect.

[0045] The wall is a hyperboloid wall, such as... Figure 11 , 12 As shown.

[0046] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. An integrated structural system for imitating ancient city walls, characterized in that, include: Concrete foundation (1); If the embedded part (2) is to be inserted, it shall be placed inside the concrete foundation (1); Several square steel bars (3) are inclinedly set on the concrete foundation (1). The bottom of the square steel bars (3) is connected to the embedded part (2), and the top is connected to the concrete beam (4). Several wall panels (5) are disposed between adjacent square steel bars (3); Several angle steels (6) are horizontally installed on the square steel (3), and the angle steels (6) are spaced apart along the height direction of the square steel (3); Several layers of antique-style wall bricks (7) are placed on the angle steel (6).

2. The overall structural system of the imitation ancient city wall according to claim 1, characterized in that, The wall panel (5) is a precast reinforced concrete wall panel, and several internally threaded pipes (8) are pre-embedded on both sides of the wall panel (5). The square steel (3) has a through hole (9), and a connecting bolt (10) that mates with the internal threaded pipe (8) is installed inside the through hole (9).

3. The overall structural system of the imitation ancient city wall according to claim 1, characterized in that, The concrete beam (4) is provided with a connector (11) on the side facing the square steel (3), and the connector (11) is fixed to the square steel (3).

4. The overall structural system of the imitation ancient city wall according to claim 3, characterized in that, A cement mortar layer is provided between the antique wall bricks (7) and the wall panel (5).

5. The overall structural system of the imitation ancient city wall according to claim 1, characterized in that, The number of layers of antique wall bricks (7) between adjacent angle steel (6) is 4-8.

6. The overall structural system of the imitation ancient city wall according to claim 5, characterized in that, Some of the antique-style wall tiles (7) are acrylic tiles.

7. The overall structural system of the imitation ancient city wall according to claim 6, characterized in that, The angle between the square steel (3) and the horizontal plane is 80-86°.

8. A construction method for an integrated structural system of an ancient city wall, characterized in that, Includes the following steps: S1: Prepare antique-style wall tiles; S2: Excavate the foundation trench and construct the reinforced concrete foundation; S3: Locate and mark the antique-style wall tiles on the first floor; S4: Install the overall frame, and then build it layer by layer; S5: Install acrylic bricks, perform curing, grouting and surface treatment, install precast reinforced concrete wall panel backing, and complete the wall construction.

9. The construction method according to claim 8, characterized in that, The installation method of the overall frame in step S4 is as follows: First, install the square steel, then fix the angle steel. The square steel is fixed to the embedded parts of the concrete foundation, and the angle steel is fixed to the square steel.

10. The construction method according to claim 8, characterized in that, The wall is a hyperboloid wall.

Images