Three-dimensional fiber assembly reinforced UHPC (Ultra High Performance Concrete) laminated integral panel and construction method thereof

By introducing three-dimensional fiber components and three-dimensional steel bar trusses into UHPC stacked integrated panels, the problems of ultra-high performance concrete brittleness and complex steel bar layout are solved, and efficient construction and material savings are achieved.

CN120465627APending Publication Date: 2025-08-12CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information

Application Number
CN202510811298.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

Existing ultra-high performance concrete is prone to damage under tension, bending and impact loads, and the existing steel bars are complexly arranged, resulting in long construction cycles, waste of materials or insufficient structural safety and redundancy, making it difficult to meet the needs of complex stressed working conditions.

Method used

The UHPC stacked integrated panel is reinforced by three-dimensional fiber components, including the base plate being equipped with three-dimensional fiber parts and three-dimensional steel truss, and concrete rib beams and C-shaped steel beams are added. Through the directional fiber reinforcement and steel truss structure, the directional reinforcement and connection strengthening of the bottom plate are achieved.

Benefits of technology

It significantly enhances the tensile, bending and impact resistance of the base plate, simplifies on-site steel bar laying, saves materials, and achieves the effect of mold and support free, and is suitable for construction of building open spaces with different spans.

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Abstract

The invention relates to the technical field of building industrialization, and discloses a three-dimensional fiber assembly reinforced UHPC (Ultra High Performance Concrete) laminated integral plate and a construction method thereof.The three-dimensional fiber assembly reinforced UHPC laminated integral plate comprises a bottom plate, a three-dimensional fiber part is arranged in the bottom plate, three-dimensional steel bar trusses are arranged along the long edge of the bottom plate at intervals of 200-300 mm, and a concrete rib beam is additionally arranged at the end, close to the three-dimensional steel bar trusses, of the bottom plate; a steel accessory is arranged on the face, away from the bottom plate, of the concrete ribbed beam, the concrete ribbed beam and the steel accessory form temporary reinforcement, bottom steel bars are welded to the end, close to the three-dimensional steel bar truss, of the bottom plate, and the height of the concrete ribbed beam is flush with the top of the three-dimensional steel bar truss. According to the three-dimensional fiber assembly reinforced UHPC laminated integral panel and the construction method thereof, different steel bar truss structures, concrete ribbed beams, C-shaped steel beams and the like are additionally arranged on the UHPC bottom plate, so that the construction of building bay integral panels with different spans of less than 3m, 3-5m and more than 5m is realized, a large amount of inter-panel joint treatment work is avoided, and a mold-free and support-free effect is realized.
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Description

Technical Field

[0001] The present invention relates to the technical field of building industrialization, and in particular to a three-dimensional fiber component reinforced UHPC laminated whole panel and a construction method thereof. Background Art

[0002] In construction projects, in order to achieve the goal of shortening the construction period and avoiding the influence of weather, composite panels are often used. The prefabricated base plates of composite panels can be produced in a standardized manner in the factory. On-site, only the composite layer needs to be cast after hoisting into place, which reduces the amount of on-site work and is especially suitable for the needs of rapid construction of prefabricated buildings.

[0003] Composite slabs are prefabricated, assembled floor components used in construction projects. They are typically manufactured using a combination of prefabrication and cast-in-place construction. A prefabricated base slab with partial reinforcement and structural support is first prefabricated. This prefabricated base slab is then installed on site, and concrete is poured on top. The prefabricated and cast-in-place components work together to form a complete floor structure.

[0004] In the existing technology, the brittle nature of ultra-high performance concrete materials makes them prone to sudden failure under tension, bending and impact loads, which greatly limits the performance of their structural performance. Although the brittleness can be improved to a certain extent by adding chopped fibers, the random distribution of chopped fibers makes it difficult to achieve directional reinforcement of the material, which cannot fully meet the needs under complex stress conditions. In addition, the existing ultra-high performance concrete entire slab reinforcement arrangement is relatively complex, which not only prolongs the construction period, but also lacks flexible and efficient structural reinforcement and connection solutions in the design of floor slabs of different spans, resulting in material waste or insufficient structural safety redundancy. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a three-dimensional fiber component reinforced UHPC laminated whole board and a construction method thereof, which can effectively solve the problems in the prior art.

[0006] The technical solution adopted by the present invention is: a three-dimensional fiber component reinforced UHPC laminated whole panel, including a base plate, the base plate is provided with a three-dimensional fiber component, the base plate is provided with a three-dimensional steel truss with an interval of 200 to 300 mm along the long side, the base plate is provided with a concrete rib beam at one end close to the three-dimensional steel truss, the concrete rib beam is provided with a steel attachment on the side away from the base plate, the concrete rib beam and the steel attachment constitute a temporary reinforcement, the base plate is welded with a bottom steel bar at one end close to the three-dimensional steel truss, and the height of the concrete rib beam is flush with the top of the three-dimensional steel truss;

[0007] The three-dimensional fiber component includes warp fiber yarns and weft fiber yarns, two fiber core columns are connected between the warp fiber yarns and the weft fiber yarns, a hollow core is arranged between the two fiber core columns, the warp fiber yarns, the weft fiber yarns and the fiber core columns form a hollow grid structure, and the three-dimensional fiber component is used to enhance the strength of the base plate.

[0008] Preferably, the base plate is ultra-high performance concrete, and the three-dimensional fiber parts are formed into a three-dimensional grid structure by a continuous fiber weaving process. The three-dimensional fiber parts are a new type of material that is formed into a three-dimensional grid structure by a three-dimensional weaving process of continuous fibers, such as glass fiber, basalt fiber, carbon fiber, organic fiber, mixed fiber, etc., and then cured with resin epoxy resin, unsaturated polyester resin, phenolic resin, etc.

[0009] Through the above technical solution, a hollow grid structure composed of warp fiber yarns, weft fiber yarns and fiber core columns is formed, and the directional arrangement and three-dimensional structure of the fiber-reinforced material are utilized to achieve directional reinforcement of the base plate, significantly enhancing the tensile, bending and impact resistance of the base plate cement-based material and improving the brittleness of the cement-based material.

[0010] Preferably, the three-dimensional steel truss includes a main truss, the lower chord of the main truss is welded with a connecting leg, the end of the connecting leg away from the main truss is fixedly installed with a plate bottom connecting piece, the outer edge of the plate bottom connecting piece is provided with an external thread, one end of the connecting leg is welded with a lower chord rod, the lower chord rod and the connecting leg are both embedded in the ultra-high performance concrete base plate, and the three-dimensional steel truss is arranged at an interval of 200mm to 300mm.

[0011] Through the above technical solution, for floor slabs with a long side span of less than 3m, the bottom chord and connecting legs are pre-embedded in the UHPC bottom plate to replace the bottom steel bars, which can enhance the connection strength between the bottom chord, connecting legs and bottom plate. While improving the overall stiffness of the floor slab, it can completely replace the bottom steel bars, simplify on-site steel bar laying construction, and save materials.

[0012] Preferably, the three-dimensional steel truss further comprises a connector expansion plate, and a connecting sleeve is fixedly mounted on one end of the connector expansion plate close to the bottom connector of the plate, and the connecting sleeve is connected to the connecting leg via an external thread.

[0013] Through the above technical solution, the connector expansion plate can be quickly installed between the embedded lower chord and the connecting leg through the connecting sleeve and the external thread, so that the two become a whole, which can further enhance the strength between the two.

[0014] Preferably, the connecting member expansion plate is arranged in the middle part of the three-dimensional fiber member, and the board bottom connecting member is located between the upper and lower layers of the three-dimensional fiber member.

[0015] Through the above technical solution, the bottom connecting piece is placed between the upper and lower layers of the three-dimensional fiber piece, which can effectively form a whole with the three-dimensional fiber piece and improve its pull-out resistance.

[0016] Preferably, the concrete rib beam includes a rib beam body, the rib beam body is evenly arranged in the short span direction of the bottom plate, the width of the concrete rib beam is the same as the width of the three-dimensional steel truss, and the width of the concrete rib beam and the three-dimensional steel truss is 80mm to 100mm.

[0017] Through the above technical solution, for floor slabs with a long side span of 3 to 5 meters, concrete rib beams can be added on the basis of the three-dimensional steel trusses. By making the width of the concrete rib beams and the three-dimensional steel trusses 80 mm to 100 mm, the widths of the two can be made the same, which does not affect their transportation performance and facilitates transportation.

[0018] Preferably, a plurality of threading holes are reserved at the lower portion of the rib beam body, an additional rib threaded sleeve is provided at the end of the rib beam body, a plurality of threaded holes 2 are opened at the top of the rib beam body, and a plurality of threaded holes 1 are opened on both sides of the rib beam body.

[0019] Through the above technical solution, the design of several threading holes can facilitate the installation of concealed electromechanical pipelines on site. At the same time, several threaded holes 2 and several threaded holes 1 can provide a foundation for the subsequent installation of floor slabs with a long side span greater than 5m.

[0020] Preferably, the steel accessory includes a reinforcement beam and a straight threaded sleeve, a bolt is provided through the reinforcement beam, and the straight threaded sleeve is located at the inner end of the rib beam.

[0021] Through the above technical solution, through the design of the straight thread sleeve, it can be used to connect additional steel accessories for stiffness reinforcement when necessary, thereby further improving its strength.

[0022] Preferably, the rib beam is fixedly mounted with connecting columns at both ends of the outer edge, the connecting columns correspond to the threaded holes, the bolts pass through the threaded holes and are connected to the straight threaded sleeves, and the steel accessories are C-shaped steel.

[0023] Through the above technical solution, the concrete ribbed beam is fixed to the steel accessories through the reserved straight thread sleeve as a temporary reinforcement measure. It can be hoisted into place on site. It is necessary to add necessary supports at the bottom of the base plate according to the design. After the concrete on the top of the plate is poured and the demolding strength is reached, the steel accessories are removed for turnover application.

[0024] The present invention also provides a construction method for a three-dimensional fiber assembly reinforced UHPC laminated whole panel, comprising the following steps:

[0025] S1: The base plate is cast with ultra-high performance concrete. The three-dimensional fiber parts are made of continuous fibers such as glass fiber, basalt fiber, carbon fiber, organic fiber, and mixed fiber. They are formed into a three-dimensional grid structure through a three-dimensional weaving process and then cured with resins such as epoxy resin, unsaturated polyester resin, and phenolic resin.

[0026] S2: Arrange three-dimensional steel trusses at intervals of 200-300mm along the long side of the base plate. Weld the lower chord and connecting legs of the main truss and embed them in the ultra-high performance concrete base plate.

[0027] S3: Connect the bottom connector to the connecting leg through the external thread, install the connector expansion plate between the embedded lower chord and the connecting leg, and place the bottom connector between the upper and lower layers of the three-dimensional fiber component.

[0028] S4: Arrange concrete ribs evenly in the short span direction of the bottom plate so that the width of the concrete ribs is the same as the width of the 3D steel trusses:

[0029] S5: A threading hole is reserved at the lower part of the rib beam body, an additional reinforcement threaded sleeve is set at the end, two threaded holes are opened on the top, and one threaded hole is opened on both sides.

[0030] S6: Install the steel accessories on the side of the concrete rib beam away from the bottom plate, insert the bolts through the threaded holes and connect them with the straight threaded sleeves located at the inner end of the rib beam body to fix the steel accessories.

[0031] S7: Threaded hole 2 and threaded hole 1 reserved in the concrete rib beam are used to connect additional stiffness-enhancing steel accessories to further strengthen the floor slab.

[0032] Compared with the prior art, the present invention provides a three-dimensional fiber component reinforced UHPC laminated whole panel and its construction method, which has the following beneficial effects:

[0033] 1. The three-dimensional fiber component reinforced UHPC composite whole-span slab and its construction method, by adding different steel truss structures, concrete rib beams and C-shaped steel beams on the UHPC bottom plate, can realize the whole-span construction of building spans with different spans below 3m, 3-5m, and above 5m, thereby avoiding a large amount of inter-slab joint processing work and achieving the effect of formwork and support-free.

[0034] 2. This three-dimensional fiber-assembly reinforced UHPC composite slab and its construction method improves the overall stiffness of the slab through three-dimensional truss reinforcement while completely replacing the reinforcement of the extended edge slab, simplifying on-site steel bar laying and saving materials.

[0035] 3. The reinforcement bars at the bottom of the slab are not exposed on all four sides. The effective connection between the slab and the wall or the slab and the beam can be achieved on site through overlapping reinforcement bars, which greatly simplifies the installation of prefabricated slabs and the difficulty of node construction. It can be widely used in various public buildings and residential buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the three-dimensional structure of the first state of the present invention Figure 1 ;

[0037] Figure 2 This is a schematic diagram of the three-dimensional structure of the first state of the present invention Figure 2 ;

[0038] Figure 3 This is a schematic diagram of the split structure of the bottom plate and the three-dimensional steel truss of the present invention;

[0039] Figure 4 This is a schematic diagram of the third-dimensional structure of the present invention in the second state. Figure 1 ;

[0040] Figure 5 This is a schematic diagram of the third-dimensional structure of the present invention in the second state. Figure 2 ;

[0041] Figure 6 This is a schematic diagram of the third state of the three-dimensional structure of the present invention Figure 1 ;

[0042] Figure 7 This is a schematic diagram of the third state of the three-dimensional structure of the present invention Figure 2 ;

[0043] Figure 8 This is a schematic diagram of the three-dimensional structure of the three-dimensional fiber assembly of the present invention;

[0044] Figure 9 Schematic diagram of the split structure of the three-dimensional fiber component of the present invention Figure 1 ;

[0045] Figure 10 Schematic diagram of the split structure of the three-dimensional fiber component of the present invention Figure 2 ;

[0046] Figure 11 Schematic diagram of the split structure of the three-dimensional steel truss of the present invention Figure 1 ;

[0047] Figure 12 Schematic diagram of the split structure of the three-dimensional steel truss of the present invention Figure 2 ;

[0048] Figure 13 This is a schematic diagram of the three-dimensional structure of the concrete rib beam of the present invention;

[0049] Figure 14 This is a schematic diagram of the three-dimensional structure of the concrete rib beam and steel accessories of the present invention;

[0050] Figure 15 This is a schematic diagram of the cross-sectional structure of the concrete rib beam of the present invention;

[0051] Figure 16 It is a schematic diagram of the process structure of the present invention.

[0052] Among them: 1. Base plate; 2. Three-dimensional fiber parts; 201. Warp fiber yarn; 202. Fiber core column; 203. Weft fiber yarn; 204. Hollow core; 3. Three-dimensional steel truss; 301. Main truss; 302. Connecting leg; 303. Plate bottom connector; 304. External thread; 305. Connecting part expansion plate; 306. Connecting sleeve; 307. Lower chord; 4. Concrete rib beam; 401. Rib beam body; 402. Threading hole; 403. Additional reinforcement threaded sleeve; 404. Threaded hole one; 405. Threaded hole two; 5. Steel accessories; 501. Reinforced beam; 502. Bolt; 503. Straight threaded sleeve; 504. Connecting column; 6. Bottom reinforcement. DETAILED DESCRIPTION

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0054] Example 1: Figure 1-16 As shown, the present invention provides a three-dimensional fiber component reinforced UHPC laminated whole panel, including a base plate 1, a three-dimensional fiber member 2 is provided in the base plate 1, and three-dimensional steel trusses 3 are provided along the long side of the base plate 1 with an interval of 200 to 300 mm. A concrete rib beam 4 is added to the end of the base plate 1 close to the three-dimensional steel truss 3. A steel accessory 5 is provided on the side of the concrete rib beam 4 away from the base plate 1. The concrete rib beam 4 and the steel accessory 5 constitute temporary reinforcement. A bottom steel bar 6 is welded to the end of the base plate 1 close to the three-dimensional steel truss 3. The height of the concrete rib beam 4 is flush with the top of the three-dimensional steel truss 3.

[0055] The three-dimensional fiber component 2 includes warp fiber yarns 201 and weft fiber yarns 203. Two fiber core columns 202 are connected between the warp fiber yarns 201 and the weft fiber yarns 203. A hollow core 204 is arranged between the two fiber core columns 202. The warp fiber yarns 201, the weft fiber yarns 203 and the fiber core columns 202 form a hollow grid structure. The three-dimensional fiber component 2 is used to enhance the strength of the base plate 1.

[0056] Specifically, the base plate 1 is ultra-high performance concrete, and the three-dimensional fiber parts 2 are formed into a three-dimensional grid structure by a continuous fiber weaving process. The three-dimensional fiber parts 2 are a new type of material made by forming a three-dimensional grid structure with continuous fibers, such as glass fiber, basalt fiber, carbon fiber, organic fiber, mixed fiber, etc., using a three-dimensional weaving process, and then solidified with resin epoxy resin, unsaturated polyester resin, phenolic resin, etc. The advantage is that the hollow grid structure is composed of warp fiber yarn 201, weft fiber yarn 203 and fiber core column 202, and the directional arrangement and three-dimensional structure of the fiber reinforced material are used to achieve directional reinforcement of the base plate 1, significantly enhancing the tensile, bending and impact resistance of the cement-based material of the base plate 1, and improving the brittleness of the cement-based material.

[0057] Specifically, the three-dimensional steel truss 3 includes a main truss 301, and a connecting leg 302 is welded to the lower chord of the main truss 301. A slab bottom connector 303 is fixedly installed at one end of the connecting leg 302 away from the main truss 301. The outer edge of the slab bottom connector 303 is provided with an external thread 304, and a lower chord rod 307 is welded to one end of the connecting leg 302. The lower chord rod 307 and the connecting leg 302 are both embedded in the ultra-high performance concrete base plate 1. The three-dimensional steel truss 3 is arranged at intervals of 200mm to 300mm. The advantage is that for floor slabs with a long side span of less than 3m, the lower chord rod 307 and the connecting leg 302 are both embedded in the UHPC base plate 1 to replace the bottom steel bar 6, which can enhance the connection strength between the lower chord rod 307, the connecting leg 302 and the base plate 1, and can completely replace the bottom steel bar 6 while improving the overall stiffness of the floor slab, thereby simplifying on-site steel bar laying construction and saving materials.

[0058] Specifically, the three-dimensional steel truss 3 also includes a connecting member expansion plate 305, and a connecting sleeve 306 is fixedly installed on one end of the connecting member expansion plate 305 close to the bottom connector 303 of the plate. The connecting sleeve 306 is connected to the connecting leg 302 through the external thread 304. The advantage is that the connecting member expansion plate 305 can be quickly installed between the embedded lower chord 307 and the connecting leg 302 through the connecting sleeve 306 and the external thread 304, so that the two become a whole, which can further enhance the strength between the two.

[0059] Specifically, the connecting member expansion plate 305 is set in the middle part of the three-dimensional fiber member 2, and the bottom connecting member 303 is located between the upper and lower layers of the three-dimensional fiber member 2. The advantage is that by placing the bottom connecting member 303 between the upper and lower layers of the three-dimensional fiber member 2, it can effectively form a whole with the three-dimensional fiber member 2 and improve its pull-out resistance.

[0060] Example 2: Figure 2-16 As shown, it is an improvement to the previous embodiment.

[0061] Specifically, the concrete rib beam 4 includes a rib beam body 401, which is evenly arranged in the short span direction on the bottom plate 1. The width of the concrete rib beam 4 is the same as the width of the three-dimensional steel truss 3. The width of the concrete rib beam 4 and the three-dimensional steel truss 3 is 80mm~100mm. The advantage is that for floor slabs with a long side span of 3~5m, concrete rib beams 4 can be added on the basis of the three-dimensional steel truss 3. By making the width of the concrete rib beam 4 and the three-dimensional steel truss 3 80mm~100mm, the widths of the two can be made the same, which will not affect their transportation performance and is convenient for transportation.

[0062] Specifically, a plurality of threading holes 402 are reserved at the lower part of the rib beam body 401, an additional reinforcement threaded sleeve 403 is provided at the end of the rib beam body 401, a plurality of threaded holes 2 405 are opened at the top of the rib beam body 401, and a plurality of threaded holes 1 404 are opened on both sides of the rib beam body 401. The advantage is that the design of the plurality of threading holes 402 can facilitate the installation of concealed electromechanical pipelines on site by the staff. At the same time, the plurality of threaded holes 2 405 and the plurality of threaded holes 1 404 can provide a foundation for the subsequent installation of floor slabs with a long side span greater than 5m.

[0063] Example 3: Figure 2-16 As shown, it is an improvement to the previous embodiment.

[0064] Specifically, the steel accessory 5 includes a reinforcement beam 501 and a straight thread sleeve 503. A bolt 502 is provided through the reinforcement beam 501, and the straight thread sleeve 503 is located at the inner end of the rib beam body 401. The advantage is that the design of the straight thread sleeve 503 can be used to connect additional stiffness-reinforcing steel accessories 5 when necessary, thereby further improving its strength.

[0065] Specifically, connecting columns 504 are fixedly installed at both ends of the outer edge of the rib beam body 401, and the connecting columns 504 correspond to the threaded hole 1 404. The bolt 502 passes through the threaded hole 1 404 and is connected to the straight thread sleeve 503. The steel accessory 5 is a C-shaped steel. The advantage is that the mixed rib beam body 401 is fixed to the steel accessory 5 through the reserved straight thread sleeve 503. As a temporary reinforcement measure, it can be hoisted into place on site. It is necessary to add necessary supports at the bottom of the base plate 1 according to the design. After the concrete on the top of the plate is poured and the demoulding strength is reached, the steel accessory 5 is removed for turnover application.

[0066] Working principle: When in use, the hollow grid structure is composed of warp fiber yarn 201, weft fiber yarn 203 and fiber core column 202. The directional arrangement and three-dimensional structure of the fiber reinforced material are used to achieve directional reinforcement of the base plate 1, significantly enhancing the tensile, bending and impact resistance of the cement-based material of the base plate 1 and improving the brittleness of the cement-based material. For floor slabs with a long side span of less than 3m, the lower chord 307 and the connecting leg 302 are pre-embedded in the UHPC base plate 1 to replace the bottom steel bar 6, which can strengthen the lower chord 307, the connecting leg 302 and the base plate 1. The connection strength between them can be improved, and at the same time as improving the overall rigidity of the floor slab, it can completely replace the bottom steel bar 6, simplify the on-site steel bar laying construction, save materials, and the connecting piece expansion plate 305 can be quickly installed between the embedded lower chord 307 and the connecting leg 302 through the connecting sleeve 306 and the external thread 304, so that the two become a whole, which can further enhance the strength between the two. The bottom connecting piece 303 is placed between the upper and lower layers of the three-dimensional fiber piece 2, which can effectively form a whole with the three-dimensional fiber piece 2, thereby improving its pull-out resistance. The bottom connector 303 is placed between the upper and lower layers of the three-dimensional fiber member 2, which can effectively form a whole with the three-dimensional fiber member 2 to improve its pull-out resistance. For a floor with a long side span of 3 to 5 meters, a concrete rib beam 4 can be added on the basis of the three-dimensional steel truss 3. The width of the concrete rib beam 4 and the three-dimensional steel truss 3 is 80 mm to 100 mm, so that the width of the two can be the same, which does not affect their transportation performance and is convenient for transportation. The design of several threading holes 402 can facilitate the installation of concealed electromechanical pipelines on site. At the same time, several screw holes 403 can be installed on the floor. The second threaded hole 405 and the plurality of threaded holes 404 can provide a foundation for the subsequent installation of a floor slab with a long side span greater than 5m. The design of the straight threaded sleeve 503 can be used to connect additional stiffness-reinforcing steel accessories 5 when necessary, thereby further improving its strength. The concrete ribbed beam body 401 is fixed to the steel accessories 5 through the reserved straight threaded sleeve 503. As a temporary reinforcement measure, it can be hoisted into place on site. Necessary supports need to be added to the bottom of the base plate 1 according to the design. After the concrete on the top of the slab is poured and the demoulding strength is reached, the steel accessories 5 can be removed for turnover application.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A three-dimensional fiber component reinforced UHPC laminated whole panel, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a three-dimensional fiber member (2), and the bottom plate (1) is provided with three-dimensional steel trusses (3) at intervals of 200 to 300 mm along the long side. A concrete rib beam (4) is additionally provided at one end of the bottom plate (1) close to the three-dimensional steel trusses (3), and a steel attachment (5) is provided on the side of the concrete rib beam (4) away from the bottom plate (1). The concrete rib beam (4) and the steel attachment (5) constitute a temporary reinforcement. A bottom steel bar (6) is welded to one end of the bottom plate (1) close to the three-dimensional steel trusses (3), and the height of the concrete rib beam (4) is flush with the top of the three-dimensional steel trusses (3); The three-dimensional fiber component (2) comprises warp fiber yarns (201) and weft fiber yarns (203); two fiber core columns (202) are connected between the warp fiber yarns (201) and the weft fiber yarns (203); a hollow core (204) is provided between the two fiber core columns (202); the warp fiber yarns (201), the weft fiber yarns (203) and the fiber core columns (202) form a hollow grid structure; the three-dimensional fiber component (2) is used to enhance the strength of the base plate (1).

2. The three-dimensional fiber component reinforced UHPC laminated whole panel according to claim 1, characterized in that: The base plate (1) is made of ultra-high performance concrete, and the three-dimensional fiber member (2) is formed into a three-dimensional grid structure by a continuous fiber weaving process.

3. The three-dimensional fiber component reinforced UHPC laminated whole panel according to claim 1, characterized in that: The three-dimensional steel truss (3) comprises a main truss (301), a connecting leg (302) is welded to the lower chord of the main truss (301), a plate bottom connecting piece (303) is fixedly installed on one end of the connecting leg (302) away from the main truss (301), an external thread (304) is provided on the outer edge of the plate bottom connecting piece (303), a lower chord rod (307) is welded to one end of the connecting leg (302), the lower chord rod (307) and the connecting leg (302) are both pre-embedded in the UHPC base plate (1), and the three-dimensional steel truss (3) is arranged at an interval of 200 mm to 300 mm.

4. The three-dimensional fiber component reinforced UHPC laminated whole panel according to claim 3, characterized in that: The three-dimensional steel truss (3) further comprises a connecting member expansion plate (305), wherein a connecting sleeve (306) is fixedly mounted on one end of the connecting member expansion plate (305) close to the plate bottom connecting member (303), and the connecting sleeve (306) is connected to the connecting leg (302) via an external thread (304).

5. The three-dimensional fiber component reinforced UHPC laminated whole panel according to claim 4, characterized in that: The connecting member expansion plate (305) is arranged in the middle part of the three-dimensional fiber member (2), and the bottom connecting member (303) is located between the upper and lower layers of the three-dimensional fiber member (2).

6. The three-dimensional fiber component reinforced UHPC laminated whole panel according to claim 1, characterized in that: The concrete rib beam (4) comprises a rib beam body (401), the rib beam body (401) is located on the bottom plate (1) and is evenly arranged in the short span direction, and the width of the concrete rib beam (4) is the same as the width of the three-dimensional steel truss (3).

7. The three-dimensional fiber component reinforced UHPC laminated whole panel according to claim 6, characterized in that: The lower part of the rib beam body (401) is reserved with a plurality of threading holes (402), the end of the rib beam body (401) is provided with an additional rib threaded sleeve (403), the top of the rib beam body (401) is provided with a plurality of threaded holes (405), and the two sides of the rib beam body (401) are provided with a plurality of threaded holes (404).

8. The three-dimensional fiber component reinforced UHPC laminated whole panel according to claim 7, characterized in that: The steel accessory (5) comprises a reinforcement beam (501) and a straight threaded sleeve (503), wherein a bolt (502) is provided through the reinforcement beam (501), and the straight threaded sleeve (503) is located at the inner end of the rib beam body (401), and the width of the concrete rib beam (4) and the three-dimensional steel bar truss (3) is 80 mm to 100 mm.

9. The three-dimensional fiber component reinforced UHPC laminated whole panel according to claim 8, characterized in that: Connecting columns (504) are fixedly installed at both ends of the outer edge of the rib beam body (401), and the connecting columns (504) correspond to the threaded hole one (404). The bolt (502) passes through the threaded hole one (404) and is connected to the straight thread sleeve (503). The steel accessory (5) is a C-shaped steel.

10. A construction method for a three-dimensional fiber component reinforced UHPC laminated whole panel according to any one of claims 1 to 9, characterized in that: The following steps are included S1: The base plate (1) is cast using ultra-high performance concrete, and the three-dimensional fiber member (2) is formed by using continuous fibers such as glass fiber, basalt fiber, carbon fiber, organic fiber, mixed fiber, etc. to form a three-dimensional grid structure through a three-dimensional weaving process, and then solidified with resin such as epoxy resin, unsaturated polyester resin, phenolic resin, etc. S2: Three-dimensional steel trusses (3) are arranged at intervals of 200-300 mm in the long side direction of the base plate (1), and the lower chord rods (307) and connecting legs (302) of the lower chord of the main truss (301) are welded and pre-buried in the ultra-high performance concrete base plate (1). S3: Connect the bottom connecting piece (303) to the connecting leg (302) through the external thread (304), install the connecting piece expansion plate (305) between the pre-buried lower chord (307) and the connecting leg (302), and place the bottom connecting piece (303) between the upper and lower layers of the three-dimensional fiber piece (2). S4: Concrete rib beams (4) are evenly arranged in the short span direction of the bottom plate (1), so that the width of the concrete rib beams (4) is the same as the width of the three-dimensional steel truss (3) (80-100mm). S5: A threading hole (402) is reserved at the lower part of the rib beam body (401), an additional rib threaded sleeve (403) is set at the end, a second threaded hole (405) is opened at the top, and a threaded hole (404) is opened on both sides. S6: Install the steel accessory (5) on the side of the concrete rib beam (4) away from the base plate (1), insert the bolt (502) through the threaded hole (404) and connect it with the straight thread sleeve (503) located at the inner end of the rib beam body (401) to fix the steel accessory (5). S7: The threaded hole 2 (405) and threaded hole 1 (404) reserved in the concrete rib beam (4) are used to connect additional rigidity-enhancing steel accessories to further strengthen the floor slab.