CN117513642A - Prefabricated UHPC-HPC combined hollow thin-wall component and manufacturing method - Google Patents
Prefabricated UHPC-HPC combined hollow thin-wall component and manufacturing method Download PDFInfo
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- CN117513642A CN117513642A CN202311739636.3A CN202311739636A CN117513642A CN 117513642 A CN117513642 A CN 117513642A CN 202311739636 A CN202311739636 A CN 202311739636A CN 117513642 A CN117513642 A CN 117513642A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000010410 layer Substances 0.000 claims description 148
- 239000004574 high-performance concrete Substances 0.000 claims description 116
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 37
- 210000001503 joint Anatomy 0.000 claims description 35
- 238000001125 extrusion Methods 0.000 claims description 25
- 230000002787 reinforcement Effects 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000011083 cement mortar Substances 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims 1
- 239000002990 reinforced plastic Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 13
- 239000000463 material Substances 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
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- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
- E04C1/41—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts composed of insulating material and load-bearing concrete, stone or stone-like material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
- B28B21/62—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements circumferential laterally tensioned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
- B28B21/80—Moulds adapted to centrifugal or rotational moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/86—Cores
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/04—Mats
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention relates to the technical field of building member manufacturing, in particular to a prefabricated UHPC-HPC combined hollow thin-wall member and a manufacturing method thereof. By the structural arrangement, the forming treatment of the UHPC-HPC combined hollow thin-wall component is facilitated.
Description
Technical Field
The invention relates to the technical field of building member manufacturing, in particular to a prefabricated UHPC-HPC combined hollow thin-wall member and a manufacturing method thereof.
Background
The hollow thin-wall member is lighter than a solid structure, reduces the weight of the whole structure, and is beneficial to saving materials and reducing building load. Due to the lightweight and modular design, hollow thin-walled components are typically installed more quickly and efficiently, thereby reducing construction time.
The ultra-high performance concrete (UHPC) material is an innovative cement-based composite material, and the compactness is improved by completely replacing coarse aggregate with fine aggregate, doping a proper amount of steel fibers, and reducing the water-cement ratio by adopting an additive. Compared with the traditional concrete, UHPC has the advantages of light weight, high strength, good ductility, ultrahigh durability, wear resistance, impact resistance and the like. Because of its excellent mechanical properties, UHPC is widely used in large span bridges, super high rise buildings, marine infrastructure and military structures.
However, when the UHPC hollow thin-wall component is manufactured in engineering and is demolded, the inner die is difficult to disassemble and can be irreversibly damaged to the original component by forced die disassembly, and meanwhile, the hollow thin-wall component is manufactured by adopting a single UHPC material, so that the manufacturing cost is high. Therefore, there is a need for a prefabricated UHPC-HPC composite hollow thin-walled component and method of manufacture that replaces the traditional steel internal mold with a high strength concrete (HPC) hollow thin-walled component that is made by centrifugation.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a prefabricated UHPC-HPC combined hollow thin-wall component and a manufacturing method thereof.
The technical scheme adopted for solving the technical problems is as follows: the prefabricated UHPC-HPC combined hollow thin-wall component comprises a UHPC layer, a reinforcing steel bar net sheet, an HPC layer and prestressed reinforcing steel bars, wherein the reinforcing steel bar net sheet is paved in the UHPC layer, the prestressed reinforcing steel bars are limited in the HPC layer, the UHPC layer and the HPC layer are fixedly arranged, and the UHPC layer and the HPC layer form a whole through a centrifugal process;
spiral stirrups are arranged in the HPC layer, the spiral stirrups in the HPC layer are fixedly supported, spiral stirrups are arranged at the outer layer position of the HPC layer, an upper die is sleeved on the upper portion of the outer side of the HPC layer, a lower die is sleeved on the lower portion of the outer side of the HPC layer, bumps are arranged in the upper die and the lower die, coarse tooth-shaped rough surfaces are formed on the outer surface layer of the HPC layer, and when the HPC layer is poured, the bumps perform forming treatment on the coarse tooth-shaped rough surfaces;
the outer surface of the spiral stirrup is exposed when the HPC layer is manufactured by a centrifugal method, and the fastening connection degree with the UHPC layer is enhanced due to the arrangement of the rough tooth-shaped rough surface;
the lower end of the spiral stirrup is provided with a transverse rib, a limiting butt joint structure is sleeved on the transverse rib, and the upper end of the limiting butt joint structure is fixedly limited by the spiral stirrup to carry out combined support of the spiral stirrup and the transverse rib;
the limiting butt joint structure comprises a first screwing extrusion frame, a first hinge ring frame, a first support column, a sleeve, a second support column, a second hinge ring frame, a second screwing extrusion frame, a second occluding frame and a first occluding frame;
the upper end of the first support column is hinged with a first articulator through a first hinging ring frame, the upper end of the second support column is hinged with a second articulator through a second hinging ring frame, one side of the first articulator is screwed with a first screwing extrusion frame, and one side of the second articulator is screwed with a second screwing extrusion frame;
the sleeve is sleeved with the transverse ribs in a limiting mode, and the centers of the second hinge ring frame and the first occlusion frame are sleeved with the spiral stirrups in a limiting mode;
the first screwing and extruding frame penetrates through the center of the first occluding frame, the second screwing and extruding frame penetrates through the center of the second occluding frame, and the first screwing and extruding frame and the second screwing and extruding frame carry out limit extrusion of the spiral stirrups to mechanically lock the spiral stirrups;
the UHPC layer has an annular cross-section thickness of about 3cm to about 5cm, and the HPC layer has an annular cross-section thickness of about 2 cm to about 3cm;
the prestress steel bars are adjusted and arranged by adopting a pretensioning method, the upper die and the lower die are clamped for producing an HPC layer, the HPC layer is arranged by adopting a centrifugal method, and spiral stirrups and transverse ribs are used as frameworks for erection production.
Specifically, the production main part includes pump and outer takeover, the rear end and the pump intercommunication of outer takeover, the rear end intercommunication of pump is equipped with indulges the tube socket, the side intercommunication of indulging the tube socket is equipped with the butt joint siphunculus, the side intercommunication of butt joint siphunculus is equipped with the guide pipe, the rear end intercommunication of guide pipe is equipped with the butt joint intercommunication seat.
Specifically, the lower extreme intercommunication of butt joint intercommunication seat is equipped with the transmission cooperation section of thick bamboo, and the lateral part position of transmission cooperation section of thick bamboo installs the motor.
Specifically, the motor is connected with a threaded feeding rod in a driving manner, and the threaded feeding rod is rotationally arranged in the transmission matching cylinder.
Specifically, the transmission cooperation section of thick bamboo deviates from the one side intercommunication of motor and is equipped with the adaptation end seat, the side intercommunication of adaptation end seat is equipped with regulation and control structure.
Specifically, the regulation and control structure includes second HPC layer and siphunculus, second HPC layer is in the protection mould in situ, and the central point of second HPC layer is equipped with the siphunculus.
Specifically, the side end of the through pipe is communicated with an imbedding guide seat, and the imbedding guide seat moves in the hollow layer in the center of the second HPC layer.
Specifically, the placement guide seat is in contact with the second HPC layer through the hollow layer, and the through pipe is communicated with the adaptive end seat.
Specifically, the cement mortar is injected into the inner layer of the through pipe, and the cement mortar can be introduced through the arrangement of the protection mold, the butt joint communicating seat, the guide pipe, the butt joint through pipe, the longitudinal pipe seat, the pump machine and the outer connecting pipe, so that the second HPC layer is treated, the inner layer in the second HPC layer after forming can be subjected to surface coating treatment, pitting surfaces on the inner layer are reduced, and the inner layer is more regular.
A manufacturing method of a prefabricated UHPC-HPC combined hollow thin-wall component comprises the following steps:
s1, processing the inner surfaces of an upper die and a lower die into rough tooth rough surface convex blocks;
s2, fixing and limiting the prestressed reinforcement;
s3, pouring an HPC layer, closing the dies, and reserving holes of the prestressed reinforcement at two ends of the upper die and the lower die;
s4, tensioning the prestressed reinforcement by adopting a pretensioning method;
s5, manufacturing an HPC layer hollow thin-wall member by adopting a centrifugal method;
s6, taking the HPC hollow thin-wall member subjected to maintenance molding as an inner mold, adopting a steel template as an outer mold, placing a reinforcing steel mesh into the outer mold, and pouring a UHPC layer;
s7, standard curing and molding with reference to the reactive powder concrete.
The invention has the beneficial effects that:
firstly, the combination of two high-strength materials, namely HPC and UHPC, is adopted, the HPC hollow thin-wall component is used as an internal mold, meanwhile, the peripheral UHPC can apply circumferential constraint, and the cross-section size can be reduced, so that the materials are saved, and the available space is increased; the HPC hollow thin-wall component manufactured by the centrifugal method has a rough tooth-shaped rough surface, and meanwhile, the exposed outer surface of the spiral stirrup increases the bonding effect; the bending rigidity can be improved by adopting a hollow structure, and meanwhile, the compression stability of the component is improved; the dead weight of the component is reduced, and the earthquake resistance is improved; the hollow thin-wall component is beneficial to maintenance of UHPC.
By arranging the protection mould, the butt joint communication seat, the guide pipe, the butt joint through pipe, the longitudinal pipe seat, the pump and the external connecting pipe, cement mortar can be introduced, so that the second HPC layer is treated, the inner layer in the second HPC layer after forming can be subjected to surface coating treatment, pitting surfaces on the inner layer are reduced, and the inner layer is more regular.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of a main body of the present invention;
FIG. 2 is a schematic view of a die for an HPC hollow thin-walled member and an HPC hollow thin-walled member in accordance with the present invention;
FIG. 3 is a perspective view of a body of the present invention;
FIG. 4 is a connection structure diagram of a spiral stirrup, a limiting butt joint structure and a transverse stirrup diagram in the HPC layer;
FIG. 5 is a schematic view of a front view perspective structure of a spacing docking structure according to the present invention;
FIG. 6 is a schematic view showing a perspective view from the front of a second embodiment of a production body according to the present invention;
FIG. 7 is a schematic side view perspective of a production body according to the present invention;
FIG. 8 is a rear perspective view of the production body of the present invention;
FIG. 9 is a split view of a production body of the present invention;
FIG. 10 is a schematic view of a front perspective view of a structure according to the present invention;
FIG. 11 is a cross-sectional view of a regulatory structure of the present invention.
In the figure: the device comprises a 1-UHPC layer, a 2-reinforcing steel mesh, a 3-HPC layer, a 4-prestressed reinforcing steel, a 5-upper die, a 6-lower die, a 7-coarse toothed rough surface, an 8-spiral stirrup, a 9-limit butt joint structure, a 10-transverse rib, a 11-first screwing extrusion frame, a 12-first hinging ring frame, a 13-first supporting column, a 14-sleeve, a 15-second supporting column, a 16-second hinging ring frame, a 17-second screwing extrusion frame, a 18-second articulator, a 19-protection die, a 20-butt joint communication seat, a 21-guiding tube, a 22-butt joint tube, a 23-longitudinal tube seat, a 24-pump, a 25-outer tube, a 26-motor, a 27-transmission matching tube, a 28-adaptation end seat, a 29-adjusting structure, a 30-threaded feeding rod, a 31-second HPC layer, a 32-through tube, a 33-placement guide seat, a 34-hollow layer, a 35-inner layer and a 36-first articulator frame.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
The invention is further described below with reference to the accompanying drawings.
Example 1
As shown in figures 1-5, the prefabricated UHPC-HPC combined hollow thin-wall component and the manufacturing method thereof comprise a UHPC layer 1, a reinforcing steel bar net sheet 2, an HPC layer 3 and prestressed reinforcing steel bars 4, wherein the reinforcing steel bar net sheet 2 is paved in the UHPC layer 1, the prestressed reinforcing steel bars 4 are limited in the HPC layer 3, and the UHPC layer 1 and the HPC layer 3 are fixedly arranged and form a whole through a centrifugal process;
spiral stirrups 8 are arranged in the HPC layer 3, the spiral stirrups 8 in the HPC layer 3 are fixedly supported, spiral stirrups 8 are arranged at the outer layer position of the HPC layer 3, an upper die 5 is sleeved on the upper portion of the outer side of the HPC layer 3, a lower die 6 is sleeved on the lower portion of the outer side of the HPC layer 3, bumps are arranged in the upper die 5 and the lower die 6, coarse tooth-shaped rough surfaces 7 are arranged on the outer surface layer of the HPC layer 3, when the HPC layer 3 is poured, the bumps perform forming treatment on the coarse tooth-shaped rough surfaces 7, the spiral stirrups 8 are limited at the centers of the second articulator 18 and the first articulator 36, the first screwing-extrusion frame 11 and the second screwing-extrusion frame 17 are rotated at the moment, the first screwing-extrusion frame 11 and the second screwing-extrusion frame 17 are respectively communicated with the first articulator the second articulator 18, the die is in extrusion contact with the spiral stirrup 8, so that limit fixing of the spiral stirrup 8 is realized, the spiral stirrup 8 and the transverse bar 10 are bound, then the upper die 5 and the lower die 6 are clamped, meanwhile, side sealing treatment of the upper die 5 and the lower die 6 is carried out, the HPC layer 3 is poured, the HPC layer 3 and the prestressed reinforcement 4 are formed through centrifugation, meanwhile, the HPC layer 3 is provided with a rough toothed rough surface 7, the subsequent combination with the UHPC layer 1 can be facilitated, after the production of the HPC layer 3 and the prestressed reinforcement 4 is completed, the prestressed reinforcement 4 is subjected to limit cutting, then the UHPC layer 1 is poured, and the UHPC layer 1 is provided with a reinforcing steel mesh 2, so that the shaping treatment is realized, and the UHPC layer 1 and the HPC layer 3 are combined;
the outer surface of the spiral stirrup 8 is exposed when the HPC layer 3 is manufactured by a centrifugal method, and the coarse tooth-shaped rough surface 7 is arranged, so that the fastening connection degree with the UHPC layer 1 is enhanced;
the lower end of the spiral stirrup 8 is provided with a transverse rib 10, a limiting butt joint structure 9 is sleeved on the transverse rib 10, the upper end of the limiting butt joint structure 9 is fixedly limited by the spiral stirrup 8, and the combination support of the spiral stirrup 8 and the transverse rib 10 is carried out;
the limiting docking structure 9 comprises a first screwing extrusion frame 11, a first hinge ring frame 12, a first supporting column 13, a sleeve 14, a second supporting column 15, a second hinge ring frame 16, a second screwing extrusion frame 17, a second occlusion frame 18 and a first occlusion frame 36;
the upper end of the sleeve 14 is fixedly connected with a first support column 13, the other side of the upper end of the sleeve 14 is fixedly connected with a second support column 15, the upper end of the first support column 13 is hinged with a first engaging frame 36 through a first hinge ring frame 12, the upper end of the second support column 15 is hinged with a second engaging frame 18 through a second hinge ring frame 16, one side of the first engaging frame 36 is screwed with a first screwing extrusion frame 11, one side of the second engaging frame 18 is screwed with a second screwing extrusion frame 17, the HPC layer 3 and the prestressed reinforcement 4 are firstly produced, the prestressed reinforcement 4 provides prestress through stretching, the spiral stirrup 8 and the transverse stirrup 10 are arranged on the outer side of the prestressed reinforcement 4, the skeleton structure of the HPC layer 3 can be provided, the spiral stirrup 8 and the transverse stirrup 10 are in limiting fixation through a limiting butt joint structure 9, the sleeve 14 is in limiting joint with the transverse stirrup 10, the first support column 13 and the second support column 15 at the upper end are borne by screwing, the first engaging frame 36 can be rotated and adjusted with the first engaging frame 13 through the first hinge ring frame 12, and the second engaging frame 18 and the second engaging frame 16 can be rotated and adjusted through the second hinge ring frame 16 and the second engaging frame 18 to enable the first engaging frame 18 to be clamped and adjusted;
the sleeve 14 is sleeved with the transverse bar 10 in a limiting manner, and the centers of the second hinge bracket 16 and the first occluding bracket 36 are sleeved with the spiral stirrup 8 in a limiting manner;
the first screwing and extruding frame 11 penetrates through the center of the first occluding frame 36, the second screwing and extruding frame 17 penetrates through the center of the second occluding frame 18, and the first screwing and extruding frame 11 and the second screwing and extruding frame 17 perform limit extrusion of the spiral stirrups 8 and perform mechanical locking of the spiral stirrups 8;
the thickness of the annular section of the UHPC layer 1 is about 3-5cm, and the thickness of the annular section of the HPC layer 3 is about 2-3cm;
the prestress steel bar 4 is adjusted and arranged by adopting a pretensioning method, the upper die 5 and the lower die 6 are matched to produce the HPC layer 3, the HPC layer 3 is arranged by adopting a centrifugal method, and the spiral stirrups 8 and the transverse ribs 10 are used as frameworks to carry out erection production.
A manufacturing method of a prefabricated UHPC-HPC combined hollow thin-wall component comprises the following steps:
s1, processing the inner surfaces of an upper die 5 and a lower die 6 into rough tooth rough surface convex blocks;
s2, fixing and limiting the prestressed reinforcement 4;
s3, pouring an HPC layer 3, closing the dies, and reserving holes of the prestressed reinforcement 4 at two ports of the upper die 5 and the lower die 6;
s4, tensioning the prestressed reinforcement 4 by adopting a pretensioning method;
s5, manufacturing the HPC layer 3 hollow thin-wall member by adopting a centrifugal method;
s6, taking the HPC hollow thin-wall member subjected to maintenance molding as an inner mold, adopting a steel template as an outer mold, placing a reinforcing steel mesh 2 in the outer mold, and pouring a UHPC layer 1;
s7, standard curing and molding with reference to the reactive powder concrete.
In the embodiment, a user firstly produces the HPC layer 3 and the prestressed reinforcement 4, the prestressed reinforcement 4 provides prestress through tensioning, the spiral stirrup 8 and the transverse reinforcement 10 are arranged on the outer side of the prestressed reinforcement 4, the framework structure of the HPC layer 3 can be provided, the spiral stirrup 8 and the transverse reinforcement 10 are limited and fixed through the limiting butt joint structure 9, the sleeve 14 is sleeved with the transverse reinforcement 10 and limited, the first support column 13 and the second support column 15 at the upper end are carried, the first articulator 36 can be rotatably adjusted with the first support column 13 through the first hinging ring 12, the second articulator 18 can be rotatably adjusted with the second support column 15 through the second hinging ring 16, so that the second articulator 18 and the first articulator 36 are subjected to die assembly treatment, the spiral stirrup 8 is limited at the center of the second articulator 18 and the first articulator 36, at this time, the first screwing and extruding frame 11 and the second screwing and extruding frame 17 are rotated, the first screwing and extruding frame 11 and the second screwing and extruding frame 17 respectively penetrate through the first articulating frame 36 and the second articulating frame 18 and are in extrusion contact with the spiral stirrup 8, so that limit fixing of the spiral stirrup 8 is realized, binding between the spiral stirrup 8 and the transverse bar 10 is realized, then the upper die 5 and the lower die 6 are clamped, meanwhile, side sealing treatment of the upper die 5 and the lower die 6 is carried out, the HPC layer 3 is poured, the HPC layer 3 and the prestress steel bar 4 are formed through centrifugation, meanwhile, the coarse toothed rough surface 7 is arranged on the HPC layer 3, the subsequent combination with the UHPC layer 1 can be facilitated, after production of the HPC layer 3 and the prestress steel bar 4 is completed, the prestress steel bar 4 is limited and cut, then the UHPC layer 1 is poured, the UHPC net piece 2 is arranged on the UHPC layer 1, and the forming treatment is realized, so that the UHPC layer 1 is formed, HPC layer 3 combines to complete the job.
Example 2
On the basis of embodiment 1, as shown in fig. 6-11, the production main body comprises a pump 24 and an external connection pipe 25, the rear end of the external connection pipe 25 is communicated with the pump 24, a longitudinal pipe seat 23 is arranged at the rear end of the pump 24, a butt joint through pipe 22 is arranged at the side end of the longitudinal pipe seat 23, a guide pipe 21 is arranged at the side end of the butt joint through pipe 22, and a butt joint communication seat 20 is arranged at the rear end of the guide pipe 21.
The lower end of the butt joint communication seat 20 is communicated with a transmission matching cylinder 27, and a motor 26 is arranged at the side part of the transmission matching cylinder 27.
A screw feed rod 30 is drivingly connected to the motor 26, and the screw feed rod 30 is rotatably disposed in the transmission engagement cylinder 27.
The transmission matching cylinder 27 is provided with an adapting end seat 28 in communication with one side away from the motor 26, and the adapting end seat 28 is provided with a regulating structure 29 in communication with the side end.
The regulating structure 29 comprises a second HPC layer 31 and a through pipe 32, the second HPC layer 31 is built in the protective mold 19, and the through pipe 32 is arranged at the center of the second HPC layer 31.
The side end of the through pipe 32 is connected with an inserting guide seat 33, and the inserting guide seat 33 moves in a hollow layer 34 in the center of the second HPC layer 31.
The insert guide 33 is disposed in contact with the second HPC layer 31 via a hollow layer 34, and the tube 32 communicates with the adapter seat 28.
The cement mortar can be introduced into the inner layer 35 through the arrangement of the protection mould 19, the butt joint communication seat 20, the guide pipe 21, the butt joint through pipe 22, the vertical pipe seat 23, the pump 24 and the external pipe 25 by the through pipe 32, so that the second HPC layer 31 is processed, the inner layer 35 in the second HPC layer 31 after being molded can be subjected to surface sizing treatment, the pitting surface on the inner layer 35 is reduced, and the inner layer 35 is more regular.
In this embodiment, the user places the second HPC layer 31 in the protection mold 19, inserts the guide seat 33 into the hollow layer 34, the inner layer 35 is supported by the guide seat 33, the guide seat 33 is communicated with the through pipe 32, and can stretch and adjust, the position of the guide seat 33 on the inner layer 35 is changed, the through pipe 32 is in butt joint with the adapting end seat 28, and the adapting end seat 28 is communicated with the transmission matching cylinder 27, the motor 26 at this time can drive the screw feeding rod 30 to rotate, so as to realize the transmission treatment of cement mortar, the user connects the outer connecting pipe 25 with an external pump, the cement mortar reaches the inside of the pump 24 through the outer connecting pipe 25, then is guided to the position of the butt joint pipe 22 through the vertical pipe seat 23, then is conducted onto the guide pipe 21, the guide pipe 21 is communicated with the butt joint connecting seat 20, at this time, the mortar is conducted into the transmission matching cylinder 27, the motor 26 controls the screw feeding rod 30 to rotate, so as to realize the transmission treatment of cement mortar, the cement mortar can be uniformly coated on the inner layer 35, thereby realizing the transmission treatment of cement mortar can be conducted into the inner layer 35 through the transmission matching cylinder, and the transmission treatment of cement mortar can be uniformly performed through the inner layer 35.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A prefabricated UHPC-HPC composite hollow thin-walled component characterized by: the novel reinforced plastic composite material comprises a UHPC layer (1), a reinforced mesh (2), an HPC layer (3) and prestressed reinforcements (4), wherein the reinforced mesh (2) is paved in the UHPC layer (1), the prestressed reinforcements (4) are limited in the HPC layer (3), and the UHPC layer (1) and the HPC layer (3) are fixedly arranged and form a whole through a centrifugal process;
spiral stirrups (8) are arranged in the HPC layer (3), the spiral stirrups (8) in the HPC layer (3) are fixedly supported, the spiral stirrups (8) are arranged at the outer layer position of the HPC layer (3), an upper die (5) is sleeved on the upper portion of the outer side of the HPC layer (3), a lower die (6) is sleeved on the lower portion of the outer side of the HPC layer (3), bumps are arranged in the upper die (5) and the lower die (6), coarse tooth-shaped burrs (7) are formed on the outer surface layer of the HPC layer (3), and when the HPC layer (3) is poured, the bumps perform forming treatment on the coarse tooth-shaped burrs (7);
the outer surface of the spiral stirrup (8) is exposed when the HPC layer (3) is manufactured by a centrifugal method, and the coarse tooth-shaped rough surface (7) is arranged to enhance the fastening connection degree with the UHPC layer (1);
the lower end of the spiral stirrup (8) is provided with a transverse rib (10), the transverse rib (10) is sleeved with a limiting butt joint structure (9), the upper end of the limiting butt joint structure (9) is fixedly limited by the spiral stirrup (8), and the spiral stirrup (8) and the transverse rib (10) are combined and supported;
the limiting butt joint structure (9) comprises a first screwing extrusion frame (11), a first hinge ring frame (12), a first support column (13), a sleeve (14), a second support column (15), a second hinge ring frame (16), a second screwing extrusion frame (17), a second occluding frame (18) and a first occluding frame (36);
the novel plastic box is characterized in that a first support column (13) is fixedly connected to one side of the upper end of the sleeve (14), a second support column (15) is fixedly connected to the other side of the upper end of the sleeve (14), a first engaging frame (36) is hinged to the upper end of the first support column (13) through a first hinge ring frame (12), a second engaging frame (18) is hinged to the upper end of the second support column (15) through a second hinge ring frame (16), a first screwing and extruding frame (11) is connected to one side of the first engaging frame (36) in a threaded screwing mode, and a second screwing and extruding frame (17) is connected to one side of the second engaging frame (18) in a threaded screwing mode;
the sleeve (14) is sleeved with the transverse ribs (10) in a limiting mode, and the centers of the second hinge ring frame (16) and the first occlusion frame (36) are sleeved with the spiral stirrups (8) in a limiting mode;
the first screwing extrusion frame (11) penetrates through the center of the first occluding frame (36), the second screwing extrusion frame (17) penetrates through the center of the second occluding frame (18), and the first screwing extrusion frame (11) and the second screwing extrusion frame (17) perform limit extrusion of the spiral stirrups (8) to mechanically lock the spiral stirrups (8);
the thickness of the annular section of the UHPC layer (1) is about 3-5cm, and the thickness of the annular section of the HPC layer (3) is about 2-3cm;
the prestress steel bar (4) is adjusted and arranged by adopting a pretensioning method, the upper die (5) and the lower die (6) are assembled to produce the HPC layer (3), the HPC layer (3) is arranged by adopting a centrifugal method, and the spiral stirrups (8) and the transverse ribs (10) are used as frameworks to carry out erection production.
2. A prefabricated UHPC-HPC combined hollow thin-walled component according to claim 1, characterized in that: the production main part includes pump (24) and external pipe (25), the rear end and the pump (24) intercommunication of external pipe (25), the rear end intercommunication of pump (24) is equipped with indulges tube socket (23), the side intercommunication of indulging tube socket (23) is equipped with butt joint siphunculus (22), the side intercommunication of butt joint siphunculus (22) is equipped with guide tube (21), the rear end intercommunication of guide tube (21) is equipped with butt joint intercommunication seat (20).
3. A prefabricated UHPC-HPC combined hollow thin-walled component according to claim 2, characterized in that: the lower end of the butt joint communication seat (20) is communicated with a transmission matching cylinder (27), and a motor (26) is arranged at the side part of the transmission matching cylinder (27).
4. A prefabricated UHPC-HPC combined hollow thin-walled component according to claim 3, characterized in that: the motor (26) is in driving connection with a threaded feed rod (30), and the threaded feed rod (30) is rotationally arranged in the transmission matching cylinder (27).
5. The prefabricated UHPC-HPC combined hollow thin-walled component according to claim 4, wherein: one side of the transmission matching cylinder (27) deviating from the motor (26) is communicated with an adaptation end seat (28), and the side end of the adaptation end seat (28) is communicated with a regulating structure (29).
6. A prefabricated UHPC-HPC combined hollow thin-walled component according to claim 5, characterized in that: the regulating structure (29) comprises a second HPC layer (31) and a through pipe (32), the second HPC layer (31) is arranged in the protection mould (19), and the through pipe (32) is arranged at the center of the second HPC layer (31).
7. The prefabricated UHPC-HPC combined hollow thin-walled component according to claim 6, wherein: the side end of the through pipe (32) is communicated with an imbedding guide seat (33), and the imbedding guide seat (33) moves in a hollow layer (34) at the center of the second HPC layer (31).
8. The prefabricated UHPC-HPC combined hollow thin-walled component according to claim 7, wherein: the placement guide seat (33) and the second HPC layer (31) are in contact arrangement through the hollow layer (34), and the through pipe (32) is communicated with the adapting end seat (28).
9. The prefabricated UHPC-HPC combined hollow thin-walled component according to claim 8, wherein: the inner layer of the second HPC layer (31) is provided with an inner layer (35), and the through pipe (32) is used for injecting cement mortar into the inner layer (35).
10. A method of making a prefabricated UHPC-HPC combined hollow thin-walled component according to any of claims 1-9, comprising the steps of:
s1, processing the inner surfaces of an upper die (5) and a lower die (6) into rough tooth rough surface convex blocks;
s2, fixing and limiting the prestressed reinforcement (4);
s3, pouring an HPC layer (3), closing the dies, and reserving holes of the prestressed reinforcement (4) at two ends of the upper die (5) and the lower die (6);
s4, tensioning the prestressed reinforcement (4) by adopting a pretensioning method;
s5, manufacturing the HPC layer (3) hollow thin-wall member by adopting a centrifugal method;
s6, taking the HPC hollow thin-wall member subjected to maintenance molding as an inner mold, adopting a steel template as an outer mold, placing a reinforcing mesh (2) in the outer mold, and pouring a UHPC layer (1);
s7, standard curing and molding with reference to the reactive powder concrete.
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