CN115107147B - Method for constructing ppvc space module - Google Patents
Method for constructing ppvc space module Download PDFInfo
- Publication number
- CN115107147B CN115107147B CN202210612685.XA CN202210612685A CN115107147B CN 115107147 B CN115107147 B CN 115107147B CN 202210612685 A CN202210612685 A CN 202210612685A CN 115107147 B CN115107147 B CN 115107147B
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- space module
- mold
- ppvc
- surface component
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- 238000000034 method Methods 0.000 title claims description 10
- 238000010276 construction Methods 0.000 claims abstract description 26
- 238000005266 casting Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 239000004567 concrete Substances 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 229920012485 Plasticized Polyvinyl chloride Polymers 0.000 abstract description 5
- 241000288140 Gruiformes Species 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241000124872 Grus grus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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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
- B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
- B28B7/0079—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces with surfaces for moulding interlocking means, e.g. grooves and ribs
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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
-
- 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
-
- 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
-
- 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
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
-
- 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
- B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
Abstract
A construction method of a PPVC space module relates to the technical field of PPVC assembly type buildings, and comprises the following steps: (1) Dividing a side member building area and a space module building area, and building a reverse pouring mold in the building area; (2) casting the side members; (3) Removing the reverse pouring die, taking the connecting edges between part of the bottom surface components and the side surface component bodies as shafts, overturning the 2 side surface components from the die table by using a crane, and enabling the bottom ends of the part of the bottom surface components to prop against the upper surface of the die table where the space module construction area is located; (4) Space module molds are erected between and outside the 2 opposite side members, and the space modules are cast and molded. According to the invention, the pouring molding of the side member and the integral molding of the space module are finished on the mold table, a large-scale building space is not required, the long-distance high-load movement of the side member is not required, the operation links are saved, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of PPVC (prestressed concrete) assembled buildings, in particular to a construction method of a PPVC space module.
Background
The invention patent with the application number of CN202010680526.4 discloses a method for casting and molding a PPVC module through an outer mold, which comprises the following steps: step 1, pouring and forming a side surface component through a die A, prefabricating and forming a part of bottom surface component inwards at the bottom end of the side surface component, prefabricating and forming a part of rear surface component inwards at the rear end of the side surface component; and 2, relatively fixing the prefabricated 2 side members through a die B, pouring a top surface member between the top ends of the side members, pouring and forming all rear members between a part of rear members, and pouring and forming all bottom members between a part of bottom members. In step 1, the mold a is shown in fig. 1 and 2 of the specification, and due to the special shape of the side members, construction is required by the overhead mold a when pouring the side members, wherein one end of the side members far away from the space module faces outwards and is positioned at the top of the mold a, and a part of the bottom member and a part of the rear member are respectively hung on the side surface of the center support of the mold a. As is apparent from the disclosure of the specification, after the side members are cast, it is necessary to remove them from the mold a, then transfer 2 side members to a new casting site, and then perform step 2.
Although the above patent document can finally construct a ppvc space module by an outer mold as shown in fig. 6 of the specification of the document, the technology of constructing a space module of the invention patent has the following drawbacks:
1. the die A has large volume, the common side member is constructed, and the die A has large volume of steel; the structure of the die A is complex, a plurality of supporting frames and main body supports arranged at the center of the die are needed, wherein the main body supports have to meet a certain height, so that the bottom ends of a part of the bottom components and the bottom ends of the rear components which are integrally formed in a special manufacturing process of the side components can keep a distance from the ground;
2. the ultra-large volume and the complex structure of the die A lead to high manufacturing cost of the die A, thereby further raising the manufacturing cost of the ppvc space module and further obstructing the popularization and the application of the ppvc technology to a certain extent;
3. because the special structure of the die A only can separate the side surface component from the top surface of the die in a mode of upward traction of the crane during demolding, the difficulty is great during demolding due to the fact that the adsorption force between the side surface component and the top of the die and the adsorption force between a part of the bottom surface component and the back surface component and the side surface of the die are huge, the labor intensity is high, and a large amount of labor is consumed:
4. in the demolding process, the side members, a part of the bottom members and the rear members need to have enough strength to resist strong demolding pulling force, so that the demolding can be performed only when the concrete of the members reaches higher strength, thereby leading to slow turnover speed and low efficiency of the mold;
5. because of the high height of the mold A, certain risks are involved in demolding and transferring the side members;
6. after demolding, the side members are transferred and turned over to perform the next process, so that a turning machine is matched with a crane, and as the side members integrally form part of the bottom members and the rear members at the same time, the side members belong to a special-shaped structure, the gravity center is not easy to control, the difficulty in the turning over and transferring process is high, and meanwhile, a certain collision risk exists;
7. as described above, the space module can be constructed by the mold B by transferring 2 side members to a set place, which results in a large space consumed for the whole construction of the space module, a complicated construction process, low efficiency, and high cost.
Disclosure of Invention
The invention provides a ppvc space module construction method, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a ppvc space module construction method comprises the following steps: (1) Dividing side member building areas on two sides of a mold table, forming space module building areas among 2 building areas, and building a reverse pouring mold in the building areas; (2) The side surface component is cast and molded simultaneously through 2 reverse casting molds, the side surface component comprises a side surface component body, and a part of bottom surface component and a part of rear surface component which are integrally molded at the bottom and the rear part of the side surface component body, and the part of bottom surface components of the 2 side surface components are oppositely arranged; (3) Removing the reverse pouring die, taking the connecting edges between part of the bottom surface components and the side surface component bodies as shafts, overturning the 2 side surface components from the die table by using a crane, and enabling the bottom ends of the part of the bottom surface components to prop against the upper surface of the die table where the space module construction area is located; (4) Space module molds are erected between and outside the 2 opposite side members, and the space modules are cast and molded.
Preferably, the construction area is positioned to satisfy the following conditions: after the reverse casting mold is set up and the side members are cast and formed according to the construction area, when the side members are turned over in place, the distance between the opposite ends of the 2 side members coincides with the width of the space module to be constructed.
Preferably, in the step (2), a part of the top surface member is integrally formed with an end of the side surface member opposite to the part of the bottom surface member.
Preferably, the reverse pouring mold comprises: the mold comprises a bottom mold plate detachably and fixedly connected with the upper surface of the mold table, side molds arranged on two sides of the bottom mold plate, and end molds arranged on two ends of the 2 side molds and enclosing the bottom mold plate; the bottom template is used for constructing the outer end face of the side member body; one of the end forms is used to construct part of the rear member; the 2 side molds are used for constructing a part of top surface components and a part of bottom surface components respectively; the end die and the side die comprise an inner die plate and an outer die plate, the inner die plate and the outer die plate are fixedly connected through an inner die fixing tool, and the bottom end of the inner die plate is higher than the upper surface of the bottom die plate and is flush with the inner surface of the side member body after casting molding.
Preferably, the internal mold fixing tool comprises a U-shaped fixing frame and a supporting frame, wherein the U-shaped fixing frame is reversely buckled at the top ends of the inner mold plate and the outer mold plate, one end of the U-shaped fixing frame facing the inner side is fixedly connected with the inner surface of the inner mold plate through bolts, one end of the U-shaped fixing frame facing the outer side is fixedly connected with the outer surface of the outer mold plate through bolts, and the adjacent side mold and the outer mold plate corresponding to the end mold are fixedly connected with the corresponding inner mold plate through bolts.
Preferably, the shape of the bottom template is matched with the shape of the outer surface of the side member body, the bottom template comprises a bottom template body and a plurality of ribs protruding out of the upper surface of the bottom template body and used for constructing mounting grooves of the outer surface of the side member body, the ribs are arranged side by side, and protruding textures used for reducing the adsorption force of concrete are uniformly distributed on the upper surface of the bottom template body between the adjacent ribs.
Preferably, in the step (3), only the side mold and the end mold are removed.
Preferably, in the step (3), the crane is connected with an embedded part on the outer surface of a part of the top surface component to realize the overturning of the side surface component.
The ppvc space module construction method has the beneficial effects that:
1. the invention can greatly reduce the die mass and save the production cost of enterprises;
2. the invention has low demolding difficulty, does not need to lift the whole side member, only needs to turn over along the bottom edge on the mold table, and saves manpower while reducing the demolding difficulty;
3. according to the invention, the side member can be overturned without waiting for the concrete to reach higher strength, so that the turnover rate and the production efficiency of the die are improved;
4. the side member is poured and formed on the die table, so that the danger caused by high die operation is avoided;
5. the invention greatly reduces the difficulty of overturning the side member, can overturn by using a common crane, saves manpower and material resources, has accurate positioning after overturning, and can directly enter the next working procedure;
6. according to the invention, the pouring molding of the side member and the integral molding of the space module are finished on the mold table, a large-scale building space is not required, the long-distance high-load movement of the side member is not required, the operation links are saved, and the working efficiency is improved.
Drawings
FIG. 1 is a layout of the upper surface of a die table of the present invention;
FIG. 2 is a block diagram of a reverse casting mold of the present invention;
FIG. 3 is an overall block diagram of a side member of the present invention;
FIG. 4 is a diagram showing the cooperation of a space module mold and a poured space module;
FIG. 5 is a block diagram of a space module mold of the present invention;
1. a die table; 2. building a region; 3. a space module construction area; 4. reversely pouring a mould; 4-1, reinforcing rods; 4-2, an outer template; 4-3, an internal mold fixing tool; 4-3-1, U-shaped fixing frame; 4-3-2, supporting frame; 4-4, a bottom template body; 4-5 parts of convex edges; 5. a side member; 5-1, a reserved steel bar for constructing part of the top surface component; 5-2, a portion of the floor member; 5-3, a side member body; 5-4, part of the rear component; 5-5, reserving a window; 5-6, a portion of the top surface member; 6. a space module mold; 6-1, a top mold for casting the top member; 6-2, a bottom die for pouring the bottom member; 7. a mounting groove; 8. a top surface member.
Detailed Description
The following detailed description of the embodiments of the present invention in a stepwise manner is provided merely as a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, but any modifications, equivalents, improvements, etc. within the spirit and principles of the present invention should be included in the scope of the present invention.
In the description of the present invention, it should be noted that, the positional or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, and specific orientation configuration and operation, and thus should not be construed as limiting the present invention.
The construction method of the ppvc space module, as shown in fig. 1-5, comprises the following steps: (1) Dividing side member building areas 2 at two sides of a die table 1, forming a space module building area 3 between the 2 building areas 2, and building a reverse pouring die 4 in the building areas 2; (2) Simultaneously pouring and forming the side member 5 through 2 reverse pouring dies 4, wherein the side member 5 comprises a side member body 5-3, a part of bottom member 5-2 integrally formed at the bottom and the rear part of the side member body 5-3 and a part of rear member 5-4, and part of bottom member 5-2 of 2 side members 5 are oppositely arranged; (3) Removing the reverse pouring mold 4, taking the connecting edges between part of the bottom surface components 5-2 and the side surface component bodies 5-3 as shafts, overturning the 2 side surface components 5 from the mold table 1 by using a crane, and enabling the bottom ends of the part of the bottom surface components 5-2 to prop against the upper surface of the mold table 1 where the space module construction area 3 is located; (4) Space module molds 6 are erected between and outside the 2 opposite side members 5, and the space modules are cast to be molded. Space modules are basic units in modular buildings for constructing a single room in a building, the specific structure of which is referred to in the patent literature of the background section. The space module mold 6 of the present invention is the same as the mold B of the above-mentioned patent document, wherein in the step (4), the step of casting the space module is the same as the step 2 of the patent document, and the solution of the prior art is not described.
As shown in fig. 1, the construction area 2 is positioned to satisfy the following conditions: after the reverse pouring mold 4 is set up and the side members 5 are poured and molded according to the construction area 2, when the side members 5 are turned over in place, the distance between the opposite ends of the 2 side members 5 coincides with the width of the space module to be constructed, i.e., the space module can be directly constructed without moving the side members 5. In practical use, fine tuning of the position of the side members may also be allowed in a small range. For ease of use, markings of the spatial module projection profile may be drawn on the upper surface of the spatial module construction zone 3 to make the positioning of the side members simpler.
As shown in fig. 3 and 4, in the step (2), a part of top surface component 5-6 is integrally formed at the end of the side surface component 5 opposite to the part of bottom surface component 5-2, and the space module is required to be transported to the high altitude under the lifting of the crane in the process of constructing the building, so that the stress performance of the space module is critical.
As shown in fig. 2 and 3, the reverse pouring mold 4 includes: the mold comprises a bottom mold plate detachably and fixedly connected with the upper surface of the mold table 1, side molds arranged on two sides of the bottom mold plate, and end molds arranged on two ends of the 2 side molds and enclosing the bottom mold plate; the bottom template is used for constructing the outer end face of the side member body 5-3; one of the end molds is used to construct part of the rear member 5-4; the 2 side molds are used for constructing a part of the top surface component 5-6 and a part of the bottom surface component 5-2 respectively; the end die and the side die comprise an inner die plate (not marked in the figure) and an outer die plate 4-2, the inner die plate and the outer die plate 4-2 are fixedly connected through an inner die fixing tool 4-3, and the bottom end of the inner die plate is higher than the upper surface of the bottom die plate and is flush with the inner surface of the side member body after casting molding. The side members can be integrally formed by communicating the side dies, the end dies and the bottom die plate.
As shown in FIG. 2, the internal mold fixing tool 4-3 comprises a U-shaped fixing frame 4-3-1 and a supporting frame 4-3-2, wherein the U-shaped fixing frame 4-3-1 is reversely buckled at the top ends of the inner mold plate and the outer mold plate 4-2, one end, facing the inner side, of the U-shaped fixing frame 4-3-1 is fixedly connected with the inner surface of the inner mold plate through bolts, one end, facing the outer side, of the U-shaped fixing frame 4-3-1 is fixedly connected with the outer surface of the outer mold plate through bolts through the supporting frame 4-3-2, and the outer mold plates 4-2 corresponding to the adjacent side mold and the end mold are fixedly connected with the corresponding inner mold plate through bolts.
As shown in fig. 2, 3 and 4, the shape of the bottom template is adapted to the shape of the outer surface of the side member body 5-3, and the bottom template comprises a bottom template body 4-4 and a plurality of ribs 4-5 protruding from the upper surface of the bottom template body 4-4 to construct a mounting groove 7 on the outer surface of the side member body, wherein the ribs 4-5 are arranged side by side, and protruding textures (not shown in the figure) for reducing the adsorption force of concrete are uniformly distributed on the upper surface of the bottom template body 4-4 between the adjacent ribs 4-5. The mounting groove has the functions that: when adjacent space modules are connected, connecting pieces are required to be installed through the installation grooves, and the adjacent space modules are connected into a whole through the connecting pieces. When the protruding texture contacts with the concrete surface, the excessive adsorption and lamination of the concrete surface and the bottom template can be avoided, and more gas space exists on the contact surface, so that the demolding difficulty is reduced.
As shown in fig. 1 and 2, in the step (3), only the side mold and the end mold are removed.
In the step (3), as shown in fig. 2, the crane is connected with the embedded part on the outer surface of the part of the top surface component to realize the overturning of the side surface component. The embedded part can be an embedded nut, and the side member is pulled to turn over through the connection of a bolt and a nut connected by a crane steel wire rope. The position of the embedded part is set according to the requirement.
Claims (6)
1. A ppvc space module construction method is characterized in that: the method comprises the following steps: (1) Dividing side member building areas on two sides of a mold table, forming space module building areas among 2 building areas, and building a reverse pouring mold in the building areas; (2) The side surface component is cast and molded simultaneously through 2 reverse casting molds, the side surface component comprises a side surface component body, and a part of bottom surface component and a part of rear surface component which are integrally molded at the bottom and the rear part of the side surface component body, and the part of bottom surface components of the 2 side surface components are oppositely arranged; (3) Removing the reverse pouring die, taking the connecting edges between part of the bottom surface components and the side surface component bodies as shafts, overturning the 2 side surface components from the die table by using a crane, and enabling the bottom ends of the part of the bottom surface components to prop against the upper surface of the die table where the space module construction area is located; (4) Space module molds are erected between and outside the 2 opposite side members, and the space modules are cast and molded;
the position of the building area meets the following conditions: after a reverse pouring die is set up according to the construction area and the side members are poured and formed, when the side members are turned over in place, the distance between the opposite ends of the 2 side members is consistent with the width of the space module to be constructed;
the reverse pouring die comprises: the mold comprises a bottom mold plate detachably and fixedly connected with the upper surface of the mold table, side molds arranged on two sides of the bottom mold plate, and end molds arranged on two ends of the 2 side molds and enclosing the bottom mold plate; the bottom template is used for constructing the outer end face of the side member body; one of the end forms is used to construct part of the rear member; the 2 side molds are used for constructing a part of top surface components and a part of bottom surface components respectively; the end die and the side die comprise an inner die plate and an outer die plate, the inner die plate and the outer die plate are fixedly connected through an inner die fixing tool, and the bottom end of the inner die plate is higher than the upper surface of the bottom die plate and is flush with the inner surface of the side member body after casting molding.
2. The ppvc space module construction method of claim 1, wherein: in the step (2), a part of top surface component is also integrally formed at the end of the side surface component opposite to the part of bottom surface component.
3. The ppvc space module construction method of claim 2, wherein: the inner die fixing tool comprises a U-shaped fixing frame and a supporting frame, wherein the U-shaped fixing frame is reversely buckled at the top ends of an inner die plate and an outer die plate, one end of the U-shaped fixing frame facing the inner side is fixedly connected with the inner surface of the inner die plate through bolts, one end of the U-shaped fixing frame facing the outer side is fixedly connected with the outer surface of the outer die plate through bolts, and the adjacent side dies and the outer die plates corresponding to the end dies are fixedly connected with the corresponding inner die plates through bolts.
4. The ppvc space module construction method of claim 3 wherein: the shape of the bottom template is matched with the shape of the outer surface of the side member body, the bottom template comprises a bottom template body and a plurality of convex edges protruding out of the upper surface of the bottom template body and used for constructing an installation groove of the outer surface of the side member body, the convex edges are arranged side by side, and protruding textures used for reducing the adsorption force of concrete are uniformly distributed on the upper surface of the bottom template body between the adjacent convex edges.
5. The ppvc space module construction method of any one of claims 1-4, wherein: in the step (3), only the side die and the end die are disassembled.
6. The ppvc space module construction method of any one of claims 1-4, wherein: in the step (3), the crane is connected with an embedded part on the outer surface of part of the top surface component to realize the overturning of the side surface component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210612685.XA CN115107147B (en) | 2022-05-31 | 2022-05-31 | Method for constructing ppvc space module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210612685.XA CN115107147B (en) | 2022-05-31 | 2022-05-31 | Method for constructing ppvc space module |
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| CN115107147A CN115107147A (en) | 2022-09-27 |
| CN115107147B true CN115107147B (en) | 2023-11-21 |
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| CN114033219A (en) * | 2021-12-21 | 2022-02-11 | 吴云涛 | Concrete box type building module, modular building and construction method thereof |
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