CN111497006B - High-compactness PC (polycarbonate) component structure and production process thereof - Google Patents
High-compactness PC (polycarbonate) component structure and production process thereof Download PDFInfo
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- CN111497006B CN111497006B CN202010352781.6A CN202010352781A CN111497006B CN 111497006 B CN111497006 B CN 111497006B CN 202010352781 A CN202010352781 A CN 202010352781A CN 111497006 B CN111497006 B CN 111497006B
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- 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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
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- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
- B28B7/225—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units for making stairs or stair units comprising more than one step
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
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- Civil Engineering (AREA)
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- Moulds, Cores, Or Mandrels (AREA)
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Abstract
The invention provides a PC component structure with high compactness and a production process thereof, wherein the PC component structure comprises a prefabricated inclined plate, prefabricated steps and a prefabricated transverse plate; the last inclined plane equidistance of prefabricated swash plate is equipped with the triangle-shaped sand grip, and has still seted up the perforation to one side between the triangle-shaped sand grip, the inboard of prefabricated step is inlayed and is had reinforcing bar B, and reinforcing bar rib B passes the inclined plane of prefabricated step and is equipped with the screw thread, prefabricated step is arranged in proper order and is installed on the inclined plane top side of prefabricated swash plate step, and reinforcing bar B passes the perforation to one side and fixes through bolted connection to the step inslot of perforation bottom side to one side, prefabricated diaphragm alternates respectively and connects the upper and lower both ends at prefabricated swash plate. The stair plate components are assembled through the prefabricated inclined plates, the prefabricated steps and the prefabricated transverse plates and can be poured respectively, the difficulty of the production process is reduced, when damage occurs, the prefabricated inclined plates and the prefabricated transverse plates can be detached and replaced, the two sides of the marble plates can be slidably mounted on the prefabricated steps after being integrally processed according to the clamping grooves, the installation is more convenient, and the cost can be saved.
Description
Technical Field
The invention belongs to the technical field of prefabricated building components, and particularly relates to a high-compactness PC (polycarbonate) component structure and a production process thereof.
Background
PC, referred to as PC component in the field of housing industrialization, refers to a concrete product produced by standardized, mechanized processing in a factory. The corresponding traditional cast-in-place concrete needs site moulding, site pouring and site maintenance. The concrete prefabricated member is widely applied to the fields of buildings, traffic, water conservancy and the like, plays an important role in national economy, and stairs are important construction for vertical traffic between floors in the buildings.
If the application number is: in CN 201920161972.7's patent, a novel prefabricated stair tread of concrete is disclosed, including prefabricated stair tread main part, prefabricated stair tread main part includes prefabricated stair tread platform, prefabricated stair tread sloping platform and prefabricated stair tread step down, it is provided with prefabricated stair tread sloping platform to go up between prefabricated stair tread platform and the prefabricated stair tread platform down, the upper portion of prefabricated stair tread sloping platform is provided with a plurality of prefabricated stair tread steps, prefabricated stair tread sloping platform comprises last reinforcing bar roof beam, lower reinforcing bar roof beam, stirrup and concrete layer, go up reinforcing bar roof beam and lower reinforcing bar roof beam and set up upper portion both sides and lower part both sides position in the concrete layer respectively. The invention solves the problems of low strength, heavy self weight and poor use safety of the prior art by arranging the upper reinforced beam, the lower reinforced beam, the stirrups, the horizontal precast concrete plate, the vertical precast concrete plate, the steel angle beam and the lightening holes. Based on the above, traditional stair board component adopts the integral type to pour more, and whole technology is more troublesome, in case great damage needs the monolithic replacement when hoist and mount installation, causes the waste, and the step still need adopt cement to paste dress marble decorative board after the installation in addition, and is more troublesome, still needs spending material, cement and cost of labor.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-compactness PC component structure and a production process thereof, and aims to solve the problems that the integral casting is adopted, the integral process is troublesome, the integral replacement is required due to large damage, and the cost is increased due to the fact that cement is adopted to paste marble decorative plates after the steps are installed.
The purpose and the effect of the PC component structure with high compactness and the production process thereof are achieved by the following specific technical means:
a high-compactness PC component structure and a production process thereof comprise prefabricating an inclined plate, prefabricating steps and prefabricating a transverse plate; the last inclined plane equidistance of prefabricated swash plate is equipped with triangle-shaped sand grip, and has still seted up the inclined hole between the triangle-shaped sand grip, and inclined hole's bottom is equipped with the step groove, the inboard of prefabricated step is inlayed and is had reinforcing bar B, and reinforcing bar rib B passes the inclined plane of prefabricated step and is equipped with the screw thread, prefabricated step is arranged in proper order and is installed on the inclined plane top side of prefabricated swash plate, and reinforcing bar B passes inclined hole and fixed to the step inslot of inclined hole bottom side and through bolted connection, prefabricated diaphragm alternates respectively and connects the upper and lower both ends at prefabricated swash plate, and still is equipped with the cross bore on the prefabricated diaphragm, and the outer end of cross bore also is equipped with the step groove.
Furthermore, criss-cross netted reinforcing steel bar ribs A are embedded in the inner side of the prefabricated inclined plate, two ends of each reinforcing steel bar rib A are respectively bent into a horizontal structure, and the tail end of each reinforcing steel bar rib A is provided with a thread.
Furthermore, the bottom end of the prefabricated step is of a horizontal structure and is clamped with the upper end face of the triangular raised strip, and a concave clamping groove is formed in the upper end face of the prefabricated step.
Furthermore, the reinforcing steel bar rib B is of a triangular frame structure, one end of the reinforcing steel bar rib B is further connected with an internal thread cylinder, and the internal thread cylinder further penetrates upwards to the bottom end face of the clamping groove.
Further, a rubber plug is screwed on the internal thread cylinder through threads.
Furthermore, reinforcing ribs C are further embedded in the prefabricated transverse plates and are of an inverted U-shaped structure and connected in the direction of the transverse through holes.
Furthermore, the upper and lower horizontal ends of the reinforcing rib A respectively penetrate through the transverse through hole and reach the stepped grooves at the outer end of the transverse through hole and are fixedly connected through bolts, and the inner side ends of the transverse through holes are respectively provided with square grooves.
Furthermore, a marble decorative plate is embedded in the clamping groove in a sliding mode, and a through hole is formed in the position, opposite to the internal thread cylinder, of the marble decorative plate.
Further, 1, arranging the reinforcing steel bars into the shape of reinforcing steel bar ribs A101, welding the reinforcing steel bar ribs A101 at the nodes of the reinforcing steel bar ribs A101, then placing the welded reinforcing steel bar ribs A101 into the formwork of the prefabricated inclined plate 1, then pouring concrete, placing plastic pipes at corresponding positions in the reinforcing steel bar ribs A101, removing the formwork of the prefabricated inclined plate 1 after the concrete reaches the required strength, detaching the plastic pipes to form inclined through holes 103 and step grooves 4, and bending the reinforcing steel bar ribs A101 extending out of two ends of the prefabricated inclined plate 1 to enable the reinforcing steel bar ribs A101 to respectively form 45 degrees with the prefabricated inclined plate 1, so that the prefabricated inclined plate 1 can be formed;
2. arranging steel bars into the shape of a steel bar rib B201, welding nodes of the steel bar rib B201, welding an internal thread cylinder 2011 in the middle of one end of the steel bar rib B201, screwing a rubber plug into the internal thread cylinder 2011, placing the welded steel bar rib B201 into a formwork of the prefabricated step 2 for pouring concrete, and removing the formwork of the prefabricated step 2 after the concrete reaches the required strength to form the prefabricated step 2;
3. arranging the steel bars into the shape of the steel bar ribs C301, welding the steel bar ribs C301 at the joints of the steel bar ribs C301, then placing the welded steel bar ribs C301 into the formwork of the prefabricated transverse plate 3, pouring concrete, placing plastic pipes at corresponding positions between the bottom sides of the steel bar ribs C301, removing the formwork of the prefabricated transverse plate 3 after the concrete reaches the required strength, detaching the plastic pipes, and displaying the transverse through holes 302 and the step grooves 4, thereby forming the prefabricated transverse plate 3.
The invention at least comprises the following beneficial effects:
this component forms the stair board component through prefabricated swash plate, prefabricated step and prefabricated diaphragm equipment, can pour respectively, reduces the production technology degree of difficulty, utilizes its inside reinforcing bar rib of inlaying to improve the intensity of self to when hoist and mount installation, when appearing damaging, still can dismantle the change, avoid whole waste, reduce construction cost.
Secondly at the prefabricated draw-in groove of the side of going up of prefabricated step to carry out whole processing back with the both sides of marble slab according to the draw-in groove, can slidable mounting on prefabricated step, need not the professional, it is more convenient to install, and reserve the through-hole that corresponds with an internal thread section of thick bamboo on the marble decorative board, be convenient for be connected the bottom of step grab bar with an internal thread section of thick bamboo through the screw rod, when the marble decorative board is broken and the grab bar fracture, it is all more convenient to change, can also save the cost.
Drawings
Fig. 1 is a schematic assembled structure of the present invention.
Fig. 2 is another schematic axial view of fig. 1 according to the present invention.
Fig. 3 is a schematic assembled structure of fig. 1 according to the present invention.
Fig. 4 is a schematic structural view of the prefabricated sloping plate of the present invention after being obliquely cut.
Fig. 5 is a schematic view showing a pre-step and the structure of the rubber stopper after being taken out from the internally threaded barrel in the present invention.
Fig. 6 is a schematic view showing the structure of the reinforcing rib B according to the present invention.
FIG. 7 is a schematic structural view of the prefabricated transverse plate of the present invention after the transverse cutting of the upper end thereof.
FIG. 8 is a schematic structural view of the prefabricated transverse plate of the present invention after the transverse cutting of the lower end thereof.
Fig. 9 is a schematic view showing the structure of the reinforcing rib C according to the present invention.
Fig. 10 is a schematic view showing the construction of fig. 1 after the rubber stopper is removed and the marble decorating plate is installed.
Fig. 11 is an enlarged schematic view of the structure at a of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. prefabricating an inclined plate; 101. a reinforcing rib A; 102. triangular convex strips; 103. obliquely perforating; 2. prefabricating steps; 201. a reinforcing rib B; 2011. an internal threaded barrel; 202. a card slot; 3. prefabricating a transverse plate; 301. a reinforcing rib C; 302. transversely perforating the holes; 3021. a square groove; 4. a step groove; 5. and a marble decorative plate.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 11:
the invention provides a PC component structure with high compactness and a production process thereof, wherein the PC component structure comprises a prefabricated inclined plate 1, a prefabricated step 2 and a prefabricated transverse plate 3; triangular raised lines 102 are equidistantly arranged on the upper inclined plane of the prefabricated inclined plate 1, inclined through holes 103 are further formed between the triangular raised lines 102, step grooves 4 are formed in the bottom ends of the inclined through holes 103, reinforcing steel bars B201 are embedded in the inner sides of the prefabricated steps 2, reinforcing steel bars B201 penetrate through the inclined planes of the prefabricated steps 2 and are provided with threads, the prefabricated steps 2 are sequentially arranged on the top sides of the inclined planes of the prefabricated inclined plate 1, the reinforcing steel bars B201 penetrate through the inclined through holes 103 and are fixed to the step grooves 4 in the bottom sides of the inclined through holes 103 through bolt connection, the prefabricated transverse plates 3 are respectively inserted and connected to the upper end and the lower end of the prefabricated inclined plate 1, transverse through holes 302 are further formed in the prefabricated transverse plates 3, and step grooves 4 are further formed in the outer ends of the transverse through holes 302.
The inside of the prefabricated sloping plate 1 is inlaid with criss-cross reticular reinforcing ribs A101, and two ends of the reinforcing ribs A101 are respectively bent into a horizontal structure and provided with threads at the tail end, so that the horizontal ends of the reinforcing ribs A101 penetrate through the transverse through holes 302 on the prefabricated transverse plate 3 to fixedly connect the prefabricated transverse plate 3 to the upper end and the lower end of the prefabricated sloping plate 1 through bolts.
The bottom end of the prefabricated step 2 is of a horizontal structure and is clamped with the upper end face of the triangular protruding strip 102, a concave clamping groove 202 is formed in the upper end face of the prefabricated step 2, the upper end face of the triangular protruding strip 102 is used for supporting the prefabricated step 2, and the connection strength of the prefabricated step 2 and the inclined plane of the prefabricated inclined plate 1 is further improved.
Wherein, reinforcing bar rib B201 is triangle-shaped frame structure, and reinforcing bar rib B201's one end still is connected with an internal thread section of thick bamboo 2011, and an internal thread section of thick bamboo 2011 still upwards wears out to the bottom face of draw-in groove 202, avoids when installation marble decorative board 5, and the height that stretches out of an internal thread section of thick bamboo 2011 forms the influence to marble decorative board 5's installation to can be connected the bottom of step bar with an internal thread section of thick bamboo 2011 through the screw rod, when the bar fracture, it is all more convenient to change, can also save the cost.
Wherein, still twist through the screw thread on the internal thread section of thick bamboo 2011 and be equipped with the rubber buffer, utilize the rubber buffer to seal internal thread section of thick bamboo 2011, prevent to seal internal thread section of thick bamboo 2011 when concreting.
Reinforcing ribs C301 are further embedded in the prefabricated transverse plates 3, the reinforcing ribs C301 are of inverted U-shaped structures and are connected in the direction of the transverse through holes 302, and the strength of the prefabricated transverse plates 3 is improved by means of the reinforcing ribs C301 embedded in the prefabricated transverse plates.
The upper horizontal end and the lower horizontal end of the steel rib A101 respectively penetrate through the transverse through hole 302 and are fixed in the step groove 4 at the outer end of the transverse through hole 302 through bolts, the inner side end of the transverse through hole 302 is respectively provided with the square groove 3021, the penetration of the horizontal end of the steel rib A101 is increased by using the square groove 3021, when the prefabricated transverse plate 3 is connected through the penetration of the steel rib A101, the connecting bolts are conveniently placed in the step groove 4 to be hidden, and the influence of the exposed bolts during installation is avoided.
Wherein, slide fixture has inlayed marble decorative board 5 in draw-in groove 202, and set up the through-hole with the relative position of internal thread section of thick bamboo 2011 on marble decorative board 5, after the installation is accomplished, can carry out the integral processing according to draw-in groove 202 with the both sides of marble decorative board 5, and reserve the through-hole that corresponds with internal thread section of thick bamboo 2011 on marble decorative board 5, can slidable mounting on prefabricated step 2, need not the professional, it is more convenient to install, and can be connected step grab bar's bottom through screw rod and internal thread section of thick bamboo 2011, when marble decorative board 5 is broken and the grab bar fracture, it is all more convenient to change, can also save the cost.
Wherein, the production process of the component comprises the following steps:
1. arranging reinforcing steel bars into the shape of a reinforcing steel bar rib A101, welding the reinforcing steel bar rib A101 at the node of the reinforcing steel bar rib A101, then placing the welded reinforcing steel bar rib A101 into a template of the prefabricated inclined plate 1, then pouring concrete, placing a plastic pipe at the corresponding position in the reinforcing steel bar rib A101, removing the template of the prefabricated inclined plate 1 after the concrete reaches the required strength, detaching the plastic pipe to present an inclined through hole 103 and a step groove 4, and bending the reinforcing steel bar ribs A101 extending out of two ends of the prefabricated inclined plate 1 to enable the reinforcing steel bar ribs A101 to form 45 degrees with the prefabricated inclined plate 1 respectively so as to form the prefabricated inclined plate 1;
2. arranging steel bars into the shape of a steel bar rib B201, welding nodes of the steel bar rib B201, welding an internal thread cylinder 2011 in the middle of one end of the steel bar rib B201, screwing a rubber plug into the internal thread cylinder 2011, placing the welded steel bar rib B201 into a formwork of the prefabricated step 2 for pouring concrete, and removing the formwork of the prefabricated step 2 after the concrete reaches the required strength to form the prefabricated step 2;
3. arranging the steel bars into the shape of the steel bar ribs C301, welding the steel bar ribs C301 at the joints of the steel bar ribs C301, then placing the welded steel bar ribs C301 into the formwork of the prefabricated transverse plate 3, pouring concrete, placing plastic pipes at corresponding positions between the bottom sides of the steel bar ribs C301, removing the formwork of the prefabricated transverse plate 3 after the concrete reaches the required strength, detaching the plastic pipes, and displaying the transverse through holes 302 and the step grooves 4, thereby forming the prefabricated transverse plate 3.
The specific use mode and function of the embodiment are as follows:
in the invention, the prefabricated steps 2 pass through the inclined through holes 103 on the prefabricated inclined plate 1 through the extending ends of the reinforcing steel ribs B201 and are fixedly connected on the upper inclined plane of the prefabricated inclined plate 1 through bolts, the horizontal structure at the bottom ends of the prefabricated steps 2 is clamped with the upper end surface of the triangular convex strips 102, the prefabricated transverse plates 3 are inserted into the horizontal ends of the reinforcing steel ribs A101 and are fixedly connected with the upper end and the lower end of the prefabricated inclined plate 1 through bolts, the stair board members are assembled through the prefabricated inclined plate 1, the prefabricated steps 2 and the prefabricated transverse plates 3 and can be respectively poured, the difficulty of the production process is reduced, the reinforcing steel ribs A201 embedded in the prefabricated inclined plate 1, the reinforcing steel ribs B201 embedded in the prefabricated steps 2 and the reinforcing steel ribs C301 embedded in the prefabricated transverse plates 3 are respectively utilized to improve the self strength, and can be disassembled and replaced when the reinforcing steel ribs B201 and the prefabricated transverse plates 3 are damaged during hoisting and installation, the whole waste is avoided, and the construction cost is reduced, after the installation is accomplished, can carry out the integral processing with the both sides of marble decorative board 5 according to the shape of draw-in groove 202 to reserve the through-hole that corresponds with internal thread section of thick bamboo 2011 on marble decorative board 5, can slidable mounting on prefabricated step 2, need not the professional, it is more convenient to install, and can be connected step grab bar's bottom through screw rod and internal thread section of thick bamboo 2011, when marble decorative board 5 is broken and the grab bar fracture, it is all more convenient to change, can also save the cost.
The invention is not described in detail, but is well known to those skilled in the art.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (2)
1. A PC component structure of high compactness which characterized in that: the PC component structure with high compactness comprises a prefabricated inclined plate (1), a prefabricated step (2) and a prefabricated transverse plate (3); triangular convex strips (102) are equidistantly arranged on the upper inclined plane of the prefabricated inclined plate (1), inclined through holes (103) are further formed among the triangular convex strips (102), step grooves (4) are formed in the bottom ends of the inclined through holes (103), criss-cross reticular reinforcing steel ribs A (101) are embedded in the inner side of the prefabricated inclined plate (1), two ends of each reinforcing steel rib A (101) are bent into horizontal structures respectively, threads are formed in the tail ends of the reinforcing steel ribs A, the upper horizontal ends and the lower horizontal ends of the reinforcing steel ribs A (101) penetrate through the transverse through holes (302) respectively and reach the step grooves (4) in the outer ends of the transverse through holes (302) and are fixedly connected through bolts, square grooves (3021) are formed in the inner side ends of the transverse through holes (302), reinforcing steel ribs B (201) are embedded in the inner side of the prefabricated step (2), the reinforcing steel ribs B (201) penetrate through the inclined plane of the prefabricated step (2) and are provided with threads, and the prefabricated steps (2) are sequentially arranged on the inclined plane on the top side of the prefabricated inclined plane of the prefabricated inclined plate (1), and the reinforcing rib B (201) passes through the inclined through hole (103) and is fixed to the step groove (4) at the bottom side of the inclined through hole (103) through bolt connection, the reinforcing rib B (201) is of a triangular frame structure, one end of the reinforcing rib B (201) is also connected with an internal thread cylinder (2011), the internal thread cylinder (2011) is also upwards penetrated to the bottom end face of the clamping groove (202), a rubber plug is screwed on the internal thread cylinder (2011), the prefabricated transverse plate (3) is respectively penetrated and connected to the upper end and the lower end of the prefabricated inclined plate (1) in an inserting way, the prefabricated transverse plate (3) is also provided with a transverse through hole (302), the outer end of the transverse through hole (302) is also provided with the step groove (4), the reinforcing rib C (301) is also embedded in the prefabricated transverse plate (3), the reinforcing rib C (301) is of an inverted U-shaped structure and is connected along the direction of the transverse through hole (302), the bottom end of the prefabricated step (2) is of a horizontal structure and is clamped with the upper end face of the triangular raised line (102), and the upper end face of the prefabricated step (2) is provided with a concave clamping groove (202), a marble decorative plate (5) is embedded in the clamping groove (202) in a sliding manner, and a through hole is formed in the position, opposite to the internal thread cylinder (2011), of the marble decorative plate (5).
2. A process for the production of a high solidity PC structural member according to claim 1, characterized in that:
1) arranging reinforcing steel bars into the shape of a reinforcing steel bar rib A (101), welding the reinforcing steel bar rib A (101) at a node, then placing the welded reinforcing steel bar rib A (101) into a template of the prefabricated inclined plate (1), pouring concrete, placing a plastic pipe at a corresponding position in the reinforcing steel bar rib A (101), removing the template of the prefabricated inclined plate (1) after the concrete reaches the required strength, detaching the plastic pipe to present an inclined through hole (103) and a step groove (4), bending the reinforcing steel bar rib A (101) extending out of two ends of the prefabricated inclined plate (1) to enable the reinforcing steel bar rib A (101) to form an angle of 45 degrees with the prefabricated inclined plate (1) respectively, and thus forming the prefabricated inclined plate (1);
2) arranging the steel bars into the shape of a steel bar rib B (201), welding nodes of the steel bar rib B (201), welding an internal thread cylinder (2011) in the middle of one end of the steel bar rib B (201), screwing a rubber plug in the internal thread cylinder (2011), putting the welded steel bar rib B (201) into a formwork of the prefabricated step (2) for pouring concrete, and removing the formwork of the prefabricated step (2) after the concrete reaches the required strength to form the prefabricated step (2);
3) arranging the steel bars into the shape of the steel bar ribs C (301), welding the steel bar ribs C (301) at the joints of the steel bar ribs C (301), putting the welded steel bar ribs C (301) into the templates of the prefabricated transverse plate (3), pouring concrete, placing plastic pipes at corresponding positions between the bottom sides of the steel bar ribs C (301), removing the templates of the prefabricated transverse plate (3) after the concrete reaches the required strength, and detaching the plastic pipes to present transverse through holes (302) and step grooves (4), thus forming the prefabricated transverse plate (3).
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| CN202010352781.6A CN111497006B (en) | 2020-04-29 | 2020-04-29 | High-compactness PC (polycarbonate) component structure and production process thereof |
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| CN112252607A (en) * | 2020-08-26 | 2021-01-22 | 上海三一筑工建设有限公司 | Spliced prefabricated staircase and use method thereof |
| CN112277135B (en) * | 2020-10-14 | 2021-11-05 | 徐州工业职业技术学院 | Adjustable prefabricated frame body mechanism for reinforced concrete |
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| CN206888385U (en) * | 2017-05-19 | 2018-01-16 | 重庆市南川区宏安建筑有限公司 | Prefabricated ladder step |
| CN107237462A (en) * | 2017-07-26 | 2017-10-10 | 贵州理工环保新材料研究有限公司 | One species plank formula staircase structure and preparation method thereof |
| CN209670222U (en) * | 2019-01-21 | 2019-11-22 | 上海远东杨园道桥有限公司 | Precast stair |
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| CN111497006A (en) | 2020-08-07 |
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