Three-dimensional curved face brick arch splicing unit, three-dimensional curved face arch crown system and manufacturing method

Abstract

The invention discloses a three-dimensional curved face brick arch splicing unit, a three-dimensional curved face vault system and a manufacturing method, and relates to the technical field of assembly type vaults, the three-dimensional curved face brick arch splicing unit comprises a three-dimensional curved face brick arch body, a plurality of flexible connecting pieces and a keel frame, the three-dimensional curved face brick arch body comprises a three-dimensional curved face brick body and a UHPC high-strength concrete pouring body, the three-dimensional curved face brick body is a three-dimensional curved face formed by splicing and building a plurality of brick bodies, filling intervals are arranged between the brick bodies, and the UHPC high-strength concrete pouring bodies are used for being integrally poured on the outer side of the three-dimensional curved face brick body and the filling intervals. The bottom ends of the flexible connecting pieces are embedded and fixed at the top of the three-dimensional curved brick arch body, and the top ends of the flexible connecting pieces are connected with the bottom of a keel frame; uHPC high-strength concrete pouring and reverse hitting are conducted on the brick body to form an assembly type prefabricated part, the structure is simple, construction is convenient and fast, integrity is good, the curved surface is smooth, precision is high, the self weight is light, and cost is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of assembled vaults, and in particular to a three-dimensional curved brick arch splicing unit, a three-dimensional curved vault system and a manufacturing method. Background Art

[0002] The existing three-dimensional curved brick arch system is mainly realized by sintered brick masonry. Accurate measurement and fine masonry technology are required to ensure the accuracy of the brickwork and the integrity of the structure. In addition, during the masonry process, attention should be paid to the tightness of the brickwork to ensure the firmness of the brickwork. The three-dimensional curved brick arch realized by masonry has a large overall mass, limited spatial scale, and the boundary stress requires additional reinforcement.

[0003] The existing three-dimensional curved brick arch system is also realized by dry hanging system. In the dry hanging system, each brick needs to be connected to the keel with metal parts, with many components and large overall weight. In order to achieve a perfect curved surface, high-precision subdivision is required, the modules are small, the quantity is large, and the cost is high. Summary of the invention

[0004] The purpose of the present invention is to provide a three-dimensional curved brick arch splicing unit, a three-dimensional curved vault system and a manufacturing method to solve the problems existing in the above-mentioned prior art, with simple structure, convenient construction, good integrity, smooth surface, high precision, light weight and effective cost reduction.

[0005] To achieve the above object, the present invention provides the following solutions: The present invention provides a three-dimensional curved brick arch splicing unit, comprising: a three-dimensional curved brick arch body, a plurality of flexible connectors and a keel frame, wherein the three-dimensional curved brick arch body comprises a three-dimensional curved brick body and a UHPC high-strength concrete casting body, the three-dimensional curved brick body is a three-dimensional curved surface formed by piecing together a plurality of brick bodies, and a filling gap is arranged between each of the brick bodies, the UHPC high-strength concrete casting body is used to be integrally cast on the outer side of the three-dimensional curved brick body and each of the filling gaps; the bottom end of each of the flexible connectors is embedded and fixed in the top of the three-dimensional curved brick arch body; the top of the keel frame is used to be connected to a concrete main structure, and the bottom of the keel frame is used to be connected to one end of each of the flexible connectors away from the three-dimensional curved brick arch body.

[0006] Preferably, a U-shaped dovetail groove is provided on the outer side of the brick body, and the U-shaped dovetail groove is connected to the filling interval. The U-shaped dovetail groove includes a first vertical groove, a second vertical groove and a transverse groove. The transverse groove is provided at the bottom of one side of the brick body and is connected to the bottom surface of the brick body. The bottom of the first vertical groove is connected to one end of the transverse groove, and the other end is connected to the top surface of the brick body. The bottom of the second vertical groove is connected to one end of the transverse groove away from the first vertical groove, and the other end is connected to the top surface of the brick body.

[0007] Preferably, the UHPC high-strength concrete casting body includes a first casting body, a second casting body and a third casting body, the first casting body, the second casting body and the third casting body are cast as a whole and are all made of UHPC high-strength concrete, the first casting body is arranged in the filling gap to connect the adjacent brick bodies, the second casting body is cast in the U-shaped dovetail groove, and the third casting body is cast on the outside of the three-dimensional curved brick body.

[0008] Preferably, the thickness of the third cast body is 20-30 mm.

[0009] Preferably, it also includes a plurality of UHPC reinforcing wrapping members and a plurality of connecting bolts, the top of the flexible connecting member is provided with a connecting hole, the UHPC reinforcing wrapping member is cast and wrapped around the portion of the flexible connecting member protruding from the UHPC high-strength concrete casting body and is integrated and fixedly connected with the UHPC high-strength concrete casting body, the connecting bolt passes through the connecting hole and is fixedly connected to the keel frame, and the diameter of the connecting hole is larger than the diameter of the connecting bolt.

[0010] Preferably, the keel frame is formed by welding bidirectional square steel tubes.

[0011] Preferably, it further comprises a plurality of metal hangers, the bottom ends of the metal hangers are used for fixed connection with the keel frame, and the top ends of the metal hangers are used for fixed connection with the concrete main structure.

[0012] Preferably, the top end of the metal hanger is connected to the concrete body by fixing through a structural plate, welding of embedded parts, or post-installed expansion bolts.

[0013] The present invention also provides a three-dimensional curved vault system, comprising a plurality of three-dimensional curved brick vault splicing units as described in any one of the above items.

[0014] The present invention also provides a method for manufacturing the three-dimensional curved vault system as described above, comprising the following steps: S1: Lay a large mold base plate in the horizontal field of the component factory, and build a CNC-carved rib plate on the large mold base plate to form a mold; S2, assembling the bricks on the mold according to the designed brick arrangement plan, and fixing rubber strips between adjacent bricks to form filling spaces between the bricks; S3, pre-embed flexible connectors, and cast UHPC high-strength concrete layer by layer on the side of the brick body away from the mold and between the brick bodies to form the UHPC high-strength concrete casting body; S4, connecting the flexible connector to the keel steel frame; S5. After the UHPC high-strength concrete casting body is completely solidified, the keel steel frame is lifted for demoulding. After demoulding, the rubber strip is removed and the leaked slurry on the surface of the brick body is cleaned; S6. Transport the completed three-dimensional curved brick arch splicing unit to a location where it needs to be installed, and connect the keel frame to the concrete structure body.

[0015] Compared with the prior art, the present invention has achieved the following technical effects: The present invention provides a three-dimensional curved brick arch splicing unit, a three-dimensional curved vault system and a manufacturing method, comprising: assembling a plurality of masonry bodies to form a three-dimensional curved brick body, and pouring UHPC high-strength concrete in the filling intervals between the masonry bodies and the outer sides of the masonry bodies to form a UHPC high-strength concrete casting body, thereby connecting the masonry bodies into a whole through the UHPC high-strength concrete casting body to form a three-dimensional curved brick arch body, connecting the three-dimensional curved brick arch body with a keel frame through a plurality of soft connectors, and then connecting the keel frame with a concrete main structure. The structure is simple, the integrity is better, the construction is more convenient, the curved surface is smooth, the precision is high, the dead weight is light, and the cost is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A cross-sectional view of a three-dimensional curved brick arch splicing unit provided by the present invention; Figure 2 A front view of a brick body in a three-dimensional curved brick arch splicing unit provided by the present invention; Figure 3 A schematic diagram of a structure in which a metal hanger and a concrete body in a three-dimensional curved brick arch splicing unit provided by the present invention are fixed by means of a penetrating structural plate; Figure 4 A schematic diagram of a structure in which a metal hanger and a concrete body in a three-dimensional curved brick arch splicing unit provided by the present invention are fixed by welding with embedded parts; Figure 5 A schematic diagram of a structure in which a metal hanger and a concrete body in a three-dimensional curved brick arch splicing unit provided by the present invention are fixed by post-installed expansion bolts; Figure 6 A top view of the three-dimensional curved vault system in Example 2; Figure 7 is a cross-sectional view of the three-dimensional curved vault system in Example 2; Figure 8 It is a brick arrangement expansion diagram of the top plate of the vault example of the three-dimensional curved vault system in the second embodiment; Fig. 9 It is a partial vault development diagram of the three-dimensional curved vault system in the second embodiment; Fig.10 It is a partial brick arrangement diagram of a column in the three-dimensional curved vault system in the second embodiment; In the figure: 100, three-dimensional curved brick arch splicing unit; 1, three-dimensional curved brick arch body; 2, UHPC high-strength concrete casting body; 3, flexible connector; 4, keel frame; 5, bolts; 6, metal hanger; 7, concrete main structure; 8, brick body; 9, U-shaped dovetail groove; 10, first vertical groove; 11, second vertical groove; 12, horizontal groove; 14, column. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The purpose of the present invention is to provide a three-dimensional curved brick arch splicing unit, a three-dimensional curved vault system and a manufacturing method to solve the problems existing in the above-mentioned prior art. The unit has a simple structure, convenient construction, good integrity, smooth surface, high precision, light weight and effectively reduces costs.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Embodiment 1 This embodiment provides a three-dimensional curved brick arch splicing unit, such as Figures 1 to 5As shown, it includes: a three-dimensional curved brick arch body 1, multiple flexible connectors 3 and a keel frame 4, the three-dimensional curved brick arch body 1 includes a three-dimensional curved brick body 8 and a UHPC high-strength concrete casting body 2, the three-dimensional curved brick body 8 is a three-dimensional curved surface formed by multiple brick bodies 8, and a filling interval is arranged between each brick body 8, the UHPC high-strength concrete casting body 2 is used to be integrally cast on the outside of the three-dimensional curved brick body 8 and each filling interval, and the UHPC high-strength concrete is cast to form the UHPC high-strength concrete casting body 2, and the UHPC high-strength concrete flows, penetrates, absorbs and solidifies to form a whole, namely the three-dimensional curved brick arch body 1, and the UHPC high-strength concrete has high fluidity, high strength, good self-compacting performance and good toughness; one end of each flexible connector 3 is buried and fixed in the three The top of the three-dimensional curved brick arch body 1; the top of the keel frame 4 is used to connect with the concrete main structure 7, and the bottom of the keel frame 4 is used to connect with one end of each connecting piece away from the three-dimensional curved brick arch body 1. Multiple masonry pieces are assembled to form a three-dimensional curved brick body 8, and UHPC high-strength concrete is poured in the filling intervals between the masonry pieces and the outside of the masonry pieces to form a UHPC high-strength concrete casting body 2, so that the various masonry pieces are connected into a whole through the UHPC high-strength concrete casting body 2 to form a three-dimensional curved brick arch body 1, and the three-dimensional curved brick arch body 1 is connected to the keel frame 4 through multiple soft connecting pieces, and then the keel frame 4 is connected to the concrete main structure 7. The structure is simple, the integrity is better, the construction is more convenient, the curved surface is smooth, the precision is high, the dead weight is light, and the cost is effectively reduced.

[0022] In a preferred scheme of the present embodiment, a U-shaped dovetail groove 9 is provided on the outer side of the brick body 8, and the U-shaped dovetail groove 9 is connected to the filling interval. The U-shaped dovetail groove 9 includes a first vertical groove 10, a second vertical groove 11 and a transverse groove 12. The transverse groove 12 is provided at the bottom of one side of the brick body 8 and is connected to the bottom surface of the brick body 8. The bottom of the first vertical groove 10 is connected to one end of the transverse groove 12, and the other end is connected to the top surface of the brick body 8. The bottom of the second vertical groove 11 is connected to one end of the transverse groove 12 away from the first vertical groove 10, and the other end is connected to the top surface of the brick body 8. By providing the U-shaped dovetail groove 9, the brick body 8 and the UHPC high-strength concrete casting body 2 can be better embedded, thereby effectively improving the integrity of the three-dimensional curved brick arch body 1.

[0023] In a preferred scheme of the present embodiment, the UHPC high-strength concrete casting body 2 includes a first casting body, a second casting body and a third casting body. The first casting body, the second casting body and the third casting body are cast as one body and are all cast with UHPC high-strength concrete. The first casting body is arranged in the filling interval to connect adjacent brick bodies 8, the second casting body is cast in the U-shaped dovetail groove 9, and the third casting body is cast on the outside of the three-dimensional curved brick body 8. The adjacent brick bodies 8 are bonded by the first casting body, and the embedding effect of the brick body 8 and the third casting body is increased by the second casting body, thereby effectively improving the integrity.

[0024] In a preferred solution of this embodiment, the thickness of the third cast body is 20-30 mm.

[0025] In a preferred scheme of the present embodiment, the three-dimensional curved brick arch splicing unit also includes a plurality of UHPC reinforcing wrapping parts and a plurality of connecting bolts, the flexible connecting part is a metal part, a connecting hole is provided on the top of the metal part, the connecting bolt passes through the connecting hole and is fixedly connected to the keel frame, the diameter of the connecting hole is larger than the diameter of the connecting bolt, so that a flexible connection is made between the metal part and the keel frame, the UHPC reinforcing wrapping part is cast and wrapped around the part of the flexible connecting part protruding from the UHPC high-strength concrete casting body and is integrated and fixedly connected with the UHPC high-strength concrete casting body, the thickness of the UHPC reinforcing wrapping part is 20~30mm, the UHPC reinforcing wrapping part can strengthen the stability of the connection between the metal part and the UHPC high-strength concrete casting body, and the UHPC reinforcing wrapping part is formed by casting UHPC high-strength concrete on the part of the metal part protruding from the UHPC high-strength concrete casting body before the initial setting of the UHPC high-strength concrete casting body.

[0026] In a preferred solution of this embodiment, the keel frame 4 is formed by welding bidirectional square steel pipes, which has a simple structure, is easy to obtain, and ensures uniform distribution of hanging points.

[0027] In a preferred solution of this embodiment, the shape of the three-dimensional curved brick arch body 1 is a three-dimensional curved shape formed by the intersection of two curved surfaces.

[0028] In a preferred solution of the present embodiment, the three-dimensional curved brick arch splicing unit also includes a plurality of metal hangers 6, the bottom ends of the metal hangers 6 are used to be fixedly connected to the keel frame 4, and the top ends of the metal hangers 6 are used to be fixedly connected to the concrete main structure 7. The metal hangers 6 are evenly arranged to ensure that the overall weight of the three-dimensional curved brick arch body 1 is evenly distributed on each metal tie rod.

[0029] In a preferred solution of this embodiment, the top end of the metal hanger 6 is connected to the concrete body by fixing through a structural plate, welding of embedded parts, or post-installation of expansion bolts 5 .

[0030] Embodiment 2 This embodiment also provides a three-dimensional curved vault system, such as Figures 6 to 10 As shown, it includes a plurality of three-dimensional curved brick arch splicing units, a foundation and a concrete main structure 7 as in the first embodiment. The bottom of the three-dimensional curved brick arch body is connected to the foundation, and the top of the three-dimensional curved brick arch body is connected to the keel frame 4 through a connecting piece. The keel frame 4 is connected to the concrete main structure 7. Figure 6 As shown, the three-dimensional curved vault system is composed of four three-dimensional curved brick arch splicing units. Figure 7 The bottom corner of the three-dimensional curved brick arch splicing unit is shown supported on column 14. Figure 8 The top plate brick layout diagram of the prefabricated sintered brick reverse three-dimensional curved vault example is shown. Fig. 9 The partial development diagram of the vault of the three-dimensional curved vault system is shown. Fig.10 A partial brick arrangement diagram of column 14 in the three-dimensional curved vault system is given. Example

[0031] This embodiment also provides a method for manufacturing the three-dimensional curved vault system as described in the second embodiment. S1. First, according to the design requirements, the model of each type of curved vault is built through BIM software. The ribs are CNC-carved by longitude and latitude, and a large mold base is laid in the horizontal field of the component factory. The CNC-carved ribs are built on the large mold base to form a mold; then the mold surface is processed and shaped by wood board, putty polishing, etc. S2. Arrange the decorative bricks 8 in the stabilized large mold of the component according to the determined brick arrangement plan, arrange rubber strips in the seams of the decorative bricks, and tie them with steel wires. The rubber strips are set between adjacent masonry, and the rubber strips are set close to the inner side of the three-dimensional curved brick arch body to form a filling interval between adjacent masonry. The filling interval is connected to the U-shaped dovetail groove 9. By setting the rubber strips, a filling interval can be formed between the upper and lower, left and right adjacent bricks 8, so that UHPC high-strength concrete can be poured in the filling interval to connect the adjacent bricks 8. In addition, the filling interval is closed at one end close to the inner side of the three-dimensional curved brick arch body by the rubber strip, which can prevent the UHPC high-strength concrete from flowing out from the inner side of the three-dimensional curved brick arch body when pouring UHPC high-strength concrete. The rubber strips are placed between the bricks 8, and the rubber strips are connected to the bricks 8 through iron wires. The selected decorative bricks are assembled in order on the mold according to the predetermined design effect to complete the preliminary design form. The above production processes are a combination of manual and machine, with standard size and high precision, and can meet the fine decoration level standards. In order to increase the bonding surface and reduce the weight of the brick, a U-shaped dovetail groove 9 is cut on the brick surface to ensure the firmness of the cast body; S3. Pour UHPC high-strength concrete evenly layer by layer on the back of the three-dimensional curved brick body. UHPC high-strength concrete is a new material that has emerged in recent years. It is an ultra-high-strength cement-based material with high strength, high toughness and low porosity. Its basic preparation principle is to increase the fineness and activity of the organizational components, without using coarse aggregates, so as to minimize the pores and microcracks inside the material in order to obtain ultra-high strength and high durability. Its main components are quartz sand, water reducer, polymer, fine aggregate, high-performance modifier, etc. It is characterized by high strength, high toughness, durability, rapid coagulation and strong plasticity. Use a special spray gun to evenly pour the pre-configured UHPC high-strength concrete on the back of the assembled brick body 8. The pouring process should be uniform and thickened layer by layer, and the final thickness should be 20-30mm; S4. The length of the flexible connector is calculated through simulation on the model. Before the initial setting of the UHPC high-strength concrete casting, the metal piece is inserted at the corresponding position, and the UHPC high-strength concrete is poured again within 20-30 mm of the metal piece extending out of the UHPC high-strength concrete casting; S5. The keel steel frame is welded in advance, and the metal parts are connected to the keel steel frame one by one through the connecting bolts 5.

[0032] S6. Leave it to stand for more than 24 hours. After the UHPC high-strength concrete is completely solidified, it can be lifted and demoulded. And start to clean the leakage and pollution problems on the surface of the fired bricks.

[0033] S7, transport the completed three-dimensional curved brick arch splicing unit to the location where it is to be installed, and hoist it onto the concrete structure body 7 using a metal hanger 6. The fixing methods include fixing through the structural plate, fixing with embedded parts by welding, and fixing with post-installed expansion bolts 5.

[0034] The beneficial effect of the present invention is that the present invention adopts a technical method of combining masonry bonding and hanging by using a sintered brick prefabricated reverse-hit ceiling board system, with accurate curved curvature, natural connection, high engineering prefabrication rate, material saving, reduced engineering waste, and shortened construction period. The prefabricated module is made of UHPC concrete casting, which can realize a larger masonry module with better integrity and more convenient construction. The assembled prefabricated sintered brick reverse-hit three-dimensional curved arch system shows the effect of a perfect solid brick arch while achieving the diversity of scale and applicable space. According to different spatial effect requirements, different scales and different module division methods can be adopted. The masonry bricks can be arranged in different ways, and the materials can also be selected from machine-made bricks or handmade bricks. It is not only used indoors and outdoors in buildings, but also can be applied to structures, landscapes and other use ranges, showing the characteristics of different types of buildings and different spaces. The application is very wide.

[0035] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A three-dimensional curved brick arch splicing unit, characterized in that: include: A three-dimensional curved brick arch body, the three-dimensional curved brick arch body comprising a three-dimensional curved brick body and a UHPC high-strength concrete casting body, the three-dimensional curved brick body is a three-dimensional curved surface formed by assembling a plurality of brick bodies, and a filling interval is provided between each of the brick bodies, and the UHPC high-strength concrete casting body is used to be integrally cast on the outside of the three-dimensional curved brick body and each of the filling intervals; A plurality of flexible connectors, wherein the bottom end of each of the flexible connectors is embedded and fixed on the top of the three-dimensional curved brick arch body; and A keel frame, the top of which is used to connect to the concrete main structure, and the bottom of which is used to connect to one end of each of the flexible connectors away from the three-dimensional curved brick arch body.

2. The three-dimensional curved brick arch splicing unit according to claim 1, characterized in that: A U-shaped dovetail groove is provided on the outer side of the brick body, and the U-shaped dovetail groove is connected to the filling interval. The U-shaped dovetail groove includes a first vertical groove, a second vertical groove and a transverse groove. The transverse groove is provided at the bottom of one side of the brick body and is connected to the bottom surface of the brick body. The bottom of the first vertical groove is connected to one end of the transverse groove, and the other end is connected to the top surface of the brick body. The bottom of the second vertical groove is connected to one end of the transverse groove away from the first vertical groove, and the other end is connected to the top surface of the brick body.

3. The three-dimensional curved brick arch splicing unit according to claim 2, characterized in that: The UHPC high-strength concrete casting body includes a first casting body, a second casting body and a third casting body. The first casting body, the second casting body and the third casting body are cast integrally and are all made of UHPC high-strength concrete. The first casting body is cast in the filling gap to connect the adjacent brick bodies, the second casting body is cast in the U-shaped dovetail groove, and the third casting body is cast on the outside of the three-dimensional curved brick body.

4. The three-dimensional curved brick arch splicing unit according to claim 3, characterized in that: The thickness of the third casting body is 20-30 mm.

5. The three-dimensional curved brick arch splicing unit according to claim 1, characterized in that: It also includes a plurality of UHPC reinforcement wrapping parts and a plurality of connecting bolts. The UHPC reinforcement wrapping parts are cast and wrapped around the part of the flexible connecting part protruding from the UHPC high-strength concrete casting body and are integrated and fixedly connected with the UHPC high-strength concrete casting body. A connecting hole is provided on the top of the flexible connecting part. The connecting bolt passes through the connecting hole to be fixedly connected to the keel frame. The diameter of the connecting hole is larger than the diameter of the connecting bolt.

6. The three-dimensional curved brick arch splicing unit according to claim 1, characterized in that: The keel frame is formed by welding bidirectional square steel pipes.

7. The three-dimensional curved brick arch splicing unit according to claim 5, characterized in that: It also includes a plurality of metal hangers, the bottom ends of the metal hangers are used to be fixedly connected to the keel frame, and the top ends of the metal hangers are used to be fixedly connected to the concrete main structure.

8. The three-dimensional curved brick arch splicing unit according to claim 7, characterized in that: The top end of the metal hanger is connected to the concrete body by fixing through a structural plate, welding of embedded parts, or fixing with post-installed expansion bolts.

9. A three-dimensional curved vault system, characterized in that: It comprises a plurality of three-dimensional curved brick arch splicing units as described in any one of claims 1 to 8.

10. A method for manufacturing a three-dimensional curved vault system according to claim 9, characterized in that: The following steps are involved: S1: Lay a large mold base plate in the horizontal field of the component factory, and build a CNC-carved rib plate on the large mold base plate to form a mold; S2, assembling the bricks on the mold according to the designed brick arrangement plan, and fixing rubber strips between adjacent bricks to form filling spaces between the bricks; S3, pre-embed flexible connectors, and cast UHPC high-strength concrete layer by layer on the side of the brick body away from the mold and between the brick bodies to form the UHPC high-strength concrete casting body; S4, connecting the flexible connector to the keel steel frame; S5. After the UHPC high-strength concrete casting body is completely solidified, the keel steel frame is lifted for demoulding. After demoulding, the rubber strip is removed and the leaked slurry on the surface of the brick body is cleaned; S6. Transport the completed three-dimensional curved brick arch splicing unit to a location where it needs to be installed, and connect the keel frame to the concrete structure body.

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