CN216840618U - Mould-dismounting-free prefabricated part - Google Patents
Mould-dismounting-free prefabricated part Download PDFInfo
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- CN216840618U CN216840618U CN202220066328.3U CN202220066328U CN216840618U CN 216840618 U CN216840618 U CN 216840618U CN 202220066328 U CN202220066328 U CN 202220066328U CN 216840618 U CN216840618 U CN 216840618U
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Abstract
The utility model discloses a disassembly-free prefabricated member, which comprises a prefabricated body formed by pouring reinforced concrete, wherein a central channel penetrating through two opposite ends of the prefabricated body is formed inside the prefabricated body; the end parts of the steel bars partially extend out of the outer surface of the prefabricated body; or sleeves which are exposed out of the outer surface of the prefabricated body and used for installing bolts are pre-buried in the prefabricated body. The utility model discloses a exempt from to tear open mould prefab, use PCF technique to form and exempt from to tear open mould prefab, transport to pour as prefabricated chipware after the scene and connect and can form the finished product component, need not to set up the mandrel cast in situ finished product component again, be applicable to various narrow and small open or confined construction operation spaces, like flue, disposal chute, wind-shaft, well, integral kitchen guarding etc. solve in the traditional work progress because construction quality problem and the potential safety hazard that constructor technical merit level caused limitedly, promote the efficiency of construction.
Description
Technical Field
The utility model relates to a building technical field especially relates to an exempt from to tear open mould prefab.
Background
With the continuous development of modern industrial technology, the assembly type building technology is more and more concerned by people, and compared with the traditional building mode, the assembly type building technology is beneficial to saving resources and energy, improving the labor production efficiency and quality safety level, and solving the construction problems which can not be solved by the traditional construction method.
In some construction projects, a narrow operation space exists, so that the formwork of the traditional construction method cannot be demoulded or the operation space is insufficient. The traditional solution is mainly to enlarge the space between the walls of the space and increase the working space. However, this increases the building area, resulting in an increase in economic cost.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a exempt from to tear open mould prefab suitable for narrow and small opening or enclosure installation.
The utility model provides a technical scheme that its technical problem adopted is: the disassembly-free prefabricated part is used for a narrow construction operation space and comprises a prefabricated body formed by pouring reinforced concrete, wherein a central channel penetrating through two opposite ends of the prefabricated body is formed in the prefabricated body;
the end parts of the steel bars partially extend out of the outer surface of the prefabricated body; or sleeves which are exposed out of the outer surface of the prefabricated body and used for installing bolts are pre-buried in the prefabricated body.
Preferably, the outer surface of the prefabricated body is provided with at least one protruding pier body, and the pier body is integrally formed on the outer surface of the prefabricated body by concrete.
Preferably, a support steel part is embedded in the prefabricated body, and one end of the support steel part protrudes out of the outer surface of the prefabricated body.
Preferably, the cross-section of the preform body is circular, elliptical or polygonal.
Preferably, the prefabricated body comprises a plurality of side plates which are mutually enclosed, and the central channel is formed between the plurality of side plates; the outer surface of at least one side plate is protruded with the end part of the reinforcing steel bars or is exposed with the sleeve.
Preferably, the plurality of side plates are respectively a first side plate, a second side plate, a third side plate and a fourth side plate;
wherein the length of the first side plate is greater than the length of the third side plate; the first side plate and the third side plate are parallel and oppositely arranged at intervals, the second side plate is vertically connected between one sides of the first side plate and the third side plate, and the fourth side plate is obliquely connected between the other sides of the first side plate and the third side plate.
Preferably, the form-removal-free prefabricated member is a prefabricated core member of a flue, an air shaft, a water well or an integrated kitchen and bathroom.
Preferably, all of said side panels are PCF panels.
Preferably, at least one of the side plates is a PCF plate, and at least one of the side plates is an integral precast plate.
The utility model has the advantages that: the PCF (Pre cast Concrete form) technology is applied to form a mould-disassembly-free prefabricated member, the prefabricated member is conveyed to the site and then used as a prefabricated core member to be poured and connected to form a finished member, the core mould is not required to be arranged for pouring the finished member in the site, and the prefabricated member is suitable for various narrow and small open or closed construction operation spaces such as a flue, a garbage bin, an air shaft, a water well, an integral kitchen and toilet and the like, so that the construction quality problem and potential safety hazard caused by limited technical level of constructors in the traditional construction process are solved, and the construction efficiency is improved.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic cross-sectional structure view of a non-demolition mold preform according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the non-demolition mold prefabricated part installed in a narrow space according to an embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 1, the utility model discloses a exempt from to tear open mould prefab 100 for narrow and small construction work space, it includes the prefabricated body 10 that is formed by reinforced concrete pouring, and prefabricated body inside is formed with the center channel 20 that runs through its relative both ends.
The cross-section of the preform body 10 may be, but is not limited to, circular, elliptical or polygonal, and also includes regular or irregular (irregular) shapes, etc.
The end part 101 of a part of the steel bar extends out of the outer surface of the prefabricated body 10, so that the prefabricated body 10 can be firmly connected with cast-in-place concrete during on-site installation, and the prefabricated body and the cast-in-place concrete are combined into a whole.
Of course, other structural members may be used instead of steel bars to strengthen the connection between the prefabricated body 10 and the cast-in-place concrete. For example, sleeves are embedded in the prefabricated body 10, and the sleeves are exposed out of the outer surface of the prefabricated body 10 and used for installing bolts, so that the installed bolts can be the same as the extended reinforcement ends 101, and the connection strength of the prefabricated body 10 and cast-in-place concrete is enhanced. Or, the bolts are directly embedded in the prefabricated body 10, and one ends of the bolts extend out of the outer surface of the prefabricated body 10, and the sleeve is not required to be embedded in the mode.
According to the position of the concrete to be poured at the time of installation, in combination with the shape of the prefabricated body 10, the end part 101 (or sleeve, or bolt) of the steel bar extends from one side of the outer surface, two sides of the outer surface or above of the prefabricated body 10.
Further, the prefabricated body 10 is first positioned when it is installed on site. To assist in positioning the prefabricated body 10, in an alternative embodiment, the outer surface of the prefabricated body 10 is provided with at least one protruding pier 30 for bracing the prefabricated body 10 in an upright position on site. The pier body 30 is integrally formed on the outer surface of the prefabricated body 10 by concrete, and may be one side outer surface, two side outer surfaces or more of the prefabricated body 10.
In another alternative embodiment, a supporting steel member (not shown) is embedded in the prefabricated body 10, and one end of the supporting steel member protrudes out of the outer surface of the prefabricated body 10 for bracing connection to keep the prefabricated body 10 in an upright state on site.
Further, from a structural point of view, the prefabricated body 10 may include a plurality of side plates that are enclosed, with the central passage 20 formed therebetween; the outer surface of at least one side plate is projected with the end part 101 of a part of the reinforcing steel bar, or is exposed with a sleeve or a bolt.
Specifically, as shown in fig. 1, in an embodiment of the non-demolition mold preform 100 of the present invention, the plurality of side plates are a first side plate 11, a second side plate 12, a third side plate 13, and a fourth side plate 14, respectively.
The first side plate 11 and the third side plate 13 are parallel and oppositely arranged at intervals, and the length of the first side plate 11 is greater than that of the third side plate 13. The second side plate 12 is vertically connected between one sides of the first and third side plates 11 and 13, and the fourth side plate 14 is diagonally connected between the other sides of the first and second side plates 11 and 13. The first side plate 11 to the fourth side plate 14 are connected in sequence to form a channel member with a trapezoidal cross section, which can be a prefabricated core piece of a flue and the like.
In other embodiments, the first side plate 11 to the fourth side plate 14 are connected in sequence to form a channel member with a rectangular cross section, which can be used as a prefabricated core member of a flue, a well or an integrated kitchen and bathroom. The side plates can also be two connected with each other at an included angle to form a prefabricated part with an open side surface; the side plates can also be three, five or more, and channel pieces with triangular and pentagonal cross sections and the like are respectively formed.
In addition, of all the side plates of the prefabricated body 10, all the side plates may be PCF plates (prefabricated formworks); or, in all the side plates, at least one side plate is an integral prefabricated plate while at least one PCF plate is arranged. For the integral prefabricated slab, the outer surface of the integral prefabricated slab does not extend out of the end part 101 (or a sleeve or a bolt) of the steel bar, and the integral prefabricated slab can be positioned at an installation site as a complete wallboard without pouring concrete and the like outside.
In combination with the application of the non-demolition mold prefabricated member 100 of the present invention, for example, as a prefabricated core member of a flue, a garbage bin, an air shaft, a water well or an integral kitchen and toilet, a single vertical finished product can be formed by pouring concrete on an installation site; or, the wall plate and other wall plates (such as shear walls and the like) are connected together through pouring to form a narrow open or closed space enclosed by a plurality of wall plates, as shown in fig. 2.
According to different applications of the non-demolition mold prefabricated part 100, functional structures such as windows and door openings can be correspondingly formed on the side plates.
It can be understood that the utility model discloses a exempt from to tear open mould prefab 100 also can be according to the narrow and small space shaping of mounted position for corresponding the prefab of shape and size, the prefab can regard as flue, refuse chute, ventilating shaft, well or integral kitchen guarding etc. and transport to the field of installation after direct positioning install on the mounted position that corresponds can.
Referring to fig. 1 and 2, the field installation method of the non-demolition mold prefabricated member of the present invention includes the following steps:
and S1, after the non-demolition mold prefabricated member 100 is transported to an installation site, vertically positioning the non-demolition mold prefabricated member on an installation position.
The mounting position is in a narrow open space or a narrow closed space. The disassembly-free prefabricated member 100 is prefabricated and formed in a factory, forms a corresponding required shape according to the space of a position to be installed, avoids the operation of installing a mold on site and pouring and forming, ensures the consistency of products and improves the quality of the products.
Step S1 further includes:
s1.1, after the non-dismantling mold prefabricated part 100 is transported to an installation site, the non-dismantling mold prefabricated part 100 is hung on an installation position and is erected on the installation position.
S1.2, installing an inclined strut to fix the non-dismantling mold prefabricated part 100, wherein one end of the inclined strut is connected to the pier body 30 or the supporting steel part on the outer surface of the non-dismantling mold prefabricated part 100, and the other end of the inclined strut is supported on the ground on site.
According to the number and the positions of the pier bodies 30 or the supporting steel members on the non-dismantling mold prefabricated member 100, two adjacent side surfaces or all side surfaces of the non-dismantling mold prefabricated member 100 are connected and supported through inclined struts. And the verticality of the disassembly-free prefabricated member 100 is adjusted by the mutual matching between the diagonal braces.
And S2, arranging a wall mold at the periphery of the non-dismantling mold prefabricated member 100.
A space is left between the wall mold and the outer surface of the non-dismantling mold prefabricated member 100 to be used as a space for subsequent concrete pouring.
In addition, when the wall body model is arranged, a gap is reserved for the pier body 30 or the supporting steel part on the non-dismantling prefabricated part 100 so as to expose the surface of the pier body 30 or the supporting steel part, and the wall body model does not interfere with the inclined strut. After the assembly of the wall body mold is completed, the inclined strut is positioned outside the wall body mold and keeps connecting and supporting the disassembly-free mold prefabricated member 100.
And S3, pouring concrete between the wall mold and the non-demolition mold prefabricated member 100.
According to the application of the non-demolition mold prefabricated member 100 and the requirement of the installation position, a steel bar can be placed between the wall mold and the non-demolition mold prefabricated member before concrete is poured. The steel bar is placed between the wall mould and the mould-disassembly-free prefabricated member in a form of a steel bar net; the reinforcing mesh is formed by criss-cross binding of reinforcing steel bars.
And S4, after standing and curing, removing the wall mould, and forming a wall layer which is compositely connected to the periphery of the mould-removal-free prefabricated member 100 by concrete.
For concrete casting alone, the wall layers formed are formed primarily of concrete. And for the steel bars, the wall body layer is formed by concrete and the steel bars.
The thickness of the formed wall layer should be greater than or equal to the height of the pier body 30 (or the protruding height of the supporting steel member) on the form-free prefabricated member 100, so that the pier body 30 or the supporting steel member is embedded in the wall layer. For the pier 30, the thickness of the wall layer may be equal to its height, so that the surface of the pier 30 facing away from the demolition-free preform 100 also constitutes a surface portion of the wall layer.
As shown in fig. 2, in one embodiment, the non-demolition mold preform 100 is installed in a confined enclosure defined by a plurality of wall panels 200. During on-site installation, the mould prefab 100 of exempting from to tear open is aimed at and is hung and put in the enclosure space, and a plurality of wallboards 200 can directly regard as the wall phantom, toward placing the reinforcing bar between wallboard 200 and the surface of the mould prefab 100 of exempting from to tear open after, concreting. After curing, the reinforced concrete is cured and formed into a wall body layer, which is tightly connected between the wall board 200 and the non-dismantling mold prefabricated member 100 and forms an integral finished component (such as a flue, a garbage groove, an air shaft, a water well or an integral kitchen and toilet) with the non-dismantling mold prefabricated member 100.
It is understood that the non-removable modular pre-form 100 may also be installed in an open space or a narrow open space, and that the non-removable modular pre-form 100 need not be attached to an exterior wall panel, or only be attached to an exterior wall panel by a portion of the side.
To sum up, the utility model discloses a when exempting from to tear open mould prefab field installation, only need externally at cast-in-place form the wall body layer can, need not to carry out holistic shaping of pouring again at the field installation mandrel, consequently need not great operation space and need not to increase the building area, solved the problem that the construction of closed or open narrow and small operation space is difficult to the operation, improved the efficiency of construction, saved the labour, saved economic cost.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. The disassembly-free prefabricated member is characterized by being used in a narrow construction operation space and comprising a prefabricated body formed by pouring reinforced concrete, wherein a central channel penetrating through two opposite ends of the prefabricated body is formed inside the prefabricated body;
the end parts of the steel bars partially extend out of the outer surface of the prefabricated body; or sleeves which are exposed out of the outer surface of the prefabricated body and used for installing bolts are pre-buried in the prefabricated body.
2. The non-dismantling mold preform as recited in claim 1, wherein said preform body has at least one protruding pier integrally formed on an outer surface thereof by concrete.
3. The disassembly-free prefabricated member of claim 1, wherein a supporting steel member is embedded in the prefabricated body, and one end of the supporting steel member protrudes out of the outer surface of the prefabricated body.
4. The demolition-free preform according to claim 1, wherein the cross-section of the preform body is circular, oval or polygonal.
5. The demolition-free preform of claim 1, wherein the preform body includes a plurality of side panels that are adjoined, the central channel being formed between the plurality of side panels; the outer surface of at least one side plate is protruded with the end part of the reinforcing steel bars or is exposed with the sleeve.
6. The demolition-free preform of claim 5, wherein the plurality of side panels are a first side panel, a second side panel, a third side panel, and a fourth side panel, respectively;
wherein the length of the first side plate is greater than the length of the third side plate; the first side plate and the third side plate are parallel and oppositely arranged at intervals, the second side plate is vertically connected between one sides of the first side plate and the third side plate, and the fourth side plate is obliquely connected between the other sides of the first side plate and the third side plate.
7. The non-demolition mold preform of claim 5, wherein all of the side panels are PCF panels.
8. The non-demolition mold preform of claim 5, wherein at least one of the side panels is a PCF panel and at least one of the side panels is an integral precast panel.
9. The demolition-free preform according to any of claims 1-8, wherein the demolition-free preform is a prefabricated core piece of a flue, an air shaft, a water well or an integrated kitchen and toilet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220066328.3U CN216840618U (en) | 2022-01-11 | 2022-01-11 | Mould-dismounting-free prefabricated part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220066328.3U CN216840618U (en) | 2022-01-11 | 2022-01-11 | Mould-dismounting-free prefabricated part |
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| CN216840618U true CN216840618U (en) | 2022-06-28 |
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| CN202220066328.3U Active CN216840618U (en) | 2022-01-11 | 2022-01-11 | Mould-dismounting-free prefabricated part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319859A (en) * | 2022-01-11 | 2022-04-12 | 柳州市建筑设计科学研究院有限公司 | Mold-dismantling-free prefabricated part and field installation method thereof |
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- 2022-01-11 CN CN202220066328.3U patent/CN216840618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319859A (en) * | 2022-01-11 | 2022-04-12 | 柳州市建筑设计科学研究院有限公司 | Mold-dismantling-free prefabricated part and field installation method thereof |
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