CN213979068U - Prefabricated superposed component and waterproof superposed structure formed by same - Google Patents
Prefabricated superposed component and waterproof superposed structure formed by same Download PDFInfo
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- CN213979068U CN213979068U CN202022749158.2U CN202022749158U CN213979068U CN 213979068 U CN213979068 U CN 213979068U CN 202022749158 U CN202022749158 U CN 202022749158U CN 213979068 U CN213979068 U CN 213979068U
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Abstract
The present disclosure relates to a prefabricated superimposed element comprising: the blades on the back water surface and the blades on the upstream water surface are arranged at intervals; a cavity is formed between the two; the cavity is used for casting concrete in situ; the connecting assembly is used for connecting the blade plate on the back water surface and the blade plate on the upstream water surface; the plugging piece is plugged at one end or two ends of the prefabricated superposed component and is fixedly connected with the connecting component; the water stopping piece is fixedly connected with the plugging piece, one end of the water stopping piece extends into the cavity, and the other end of the water stopping piece extends outwards; the design adopts prefabricated coincide component, buries among the required setting in the middle of the post-cast strip stagnant water measure and pours the fast easy binding off net that uses in grades and prefabricate in prefabricated coincide component, and the on-the-spot only need be to post-cast strip local formwork, practices thrift on-the-spot template volume, greatly reduces basement construction period.
Description
Technical Field
The present disclosure relates to building components and construction thereof, and more particularly, to a prefabricated composite member and a waterproof composite structure formed by the same.
Background
The prefabricated structure and the components are rarely applied to basements of common civil buildings, and the technical solution of a post-cast strip of the prefabricated structure is also lacked.
The existing waterproof method for the post-cast strip of the basement of the cast-in-place structure is CN201910653826.0, and the method shortens the construction period of the post-cast strip in the post-cast strip of the basement by setting the form of the prefabricated post-cast strip and adds a series of waterproof measures. The method has the main problems that the shortened construction period is very limited, the construction of the main body part of the outer wall of the basement is mainly cast in situ, a large amount of templates and wall pouring are needed, and the field construction workload of advanced water stop is large.
CN201920770830.0, through setting up prefabricated door type component and splicing in advance in basement post-cast strip upstream face, realize the backfill of save time. But this increases the material cost of this component, as well as the installation process. The outer wall forms the jut in post-cast strip department and also can bring inconvenience to laying of whole coiled material in later stage.
SUMMERY OF THE UTILITY MODEL
The prefabricated superposed component is adopted in the design, the quick and easy closing-up net used for embedding water stopping measures and pouring in different times in the needed arrangement in the middle of the post-pouring belt is prefabricated in the prefabricated superposed wall component, a local formwork of the post-pouring belt is only needed to be erected on site, water can be laid before the post-pouring belt is poured, the amount of templates on site is saved, and the construction period of a basement is greatly shortened.
The technical scheme of the disclosure is as follows:
a prefabricated building element comprising:
the blades on the back water surface and the blades on the upstream water surface are arranged at intervals; a cavity is formed between the two; the cavity is used for casting concrete in situ;
the connecting assembly is used for connecting the blade plate on the back water surface and the blade plate on the upstream water surface;
the plugging piece is plugged at one end or two ends of the prefabricated superposed component and is fixedly connected with the connecting component;
and the water stopping piece is fixedly connected with the plugging piece, one end of the water stopping piece extends into the cavity, and the other end of the water stopping piece extends outwards.
The length difference of the end parts of the upstream surface blade plate and the downstream surface blade plate is a, and a is more than or equal to 0 and less than b/2.
Preferably, b is in the range of 700mm to 1000 mm.
Preferably, the connecting assembly comprises longitudinal ribs, transverse ribs and tie bars.
Preferably, the closure and the connecting assembly are fixedly connected by strapping, welding or gluing.
Preferably, the water stop piece and the blocking piece are fixedly connected through bundling, welding or gluing.
A waterproof superposed structure comprises the prefabricated superposed component, and specifically comprises a first prefabricated superposed component, a second prefabricated superposed component and a post-pouring belt arranged between the first prefabricated superposed component and the second prefabricated superposed component, wherein the water stop of the first prefabricated superposed component is arranged between the first prefabricated superposed component and the post-pouring belt, the water stop of the second prefabricated superposed component is arranged between the second prefabricated superposed component and the post-pouring belt,
and the connecting steel bar penetrates through the first prefabricated overlapped component, the second prefabricated overlapped component and the post-cast strip.
When a is more than 0, the waterproof laminated structure and the construction process are more specific, and specifically:
the end parts of the upstream surface blade plate of the first prefabricated overlapped component and the upstream surface blade plate of the second prefabricated overlapped component are in butt joint, and building sealant and plugging materials are embedded between the two upstream surface blade plates.
Preferably, the outer surface of the upstream side blade plate of the waterproof superposed structure is sequentially provided with a main structure waterproof layer and a waterproof protective layer;
preferably, an additional waterproof layer is further arranged at the butt joint of the end parts of the upstream surface blades of the two adjacent prefabricated overlapped components on the outer surface of the upstream surface blades of the waterproof overlapped structure.
The present disclosure has the following beneficial effects:
1. the prefabricated superposed component is adopted in the design, the quick and easy closing-up net used for embedding water stopping measures and pouring in different times in the needed arrangement in the middle of the post-pouring belt is prefabricated in the prefabricated superposed component, a post-pouring belt is only required to be locally supported on site, water can be laid before the post-pouring belt is poured, the amount of templates on the site is saved, and the construction period of a basement is greatly reduced.
2. The buried water stop strip and the prefabricated fast and easy closing-up net are embedded in the prefabricated superposed member, the workload of on-site laying is reduced, and the construction period is shortened.
3. The method can reduce the construction workload of the on-site template and save the whole construction time.
4. According to the method, the water leakage points formed by the post-cast strip are reduced by extending the upstream-side blade plates, waterproof construction operation is performed before the post-cast strip is poured, the water leakage hidden danger and the additional waterproof material cost are reduced, and the construction period is further shortened.
Drawings
FIG. 1 is a schematic structural view of a prefabricated building unit of the present disclosure;
FIG. 2 is a schematic view of the prefabricated folding members of the present disclosure utilizing ladder rebar as the linking component;
FIG. 3 is a schematic structural and construction view of a waterproof laminated structure according to the first embodiment;
fig. 4 is a schematic structural and construction view of a waterproof laminated structure according to a second embodiment.
The reference numbers in the figures denote:
1-prefabricating a superposed member; 2, pouring concrete in the cavity; 3-connecting reinforcing steel bars; 4-a main structure waterproof layer; 5-waterproof protective layer; 6-additional waterproof layer; 7-building sealant; 8-a plugging material; 11-a water stop; 12-a closure; 14-post-pouring a strip template; 15-bolt; 16-split bolts; 17-upstream face blade plate; 18-compensation shrinkage concrete and 19-backing surface leaf plate; 20-connecting the components.
Detailed Description
The present disclosure is described in detail below with reference to the figures and specific embodiments.
Referring to fig. 1, a prefabricated building element in the present disclosure includes:
the back water surface vane plate 19 and the upstream surface vane plate 17 are arranged at intervals; a cavity is formed between the two; the cavity is used for casting concrete in situ; the back water blade plate 19 and the upstream water blade plate 17 are both formed by prefabricating concrete. The position of the superposed wall after being constructed in place is taken as a standard, the upstream surface of the superposed wall, namely the part below the underground water level or under the water with the water pressure acting on the concrete structure surface, is called the upstream surface, and the opposite other surface is the back surface. The length difference of one end of the upstream surface blade plate 17 and the downstream surface blade plate 19 is a, as shown in figure 1, wherein a is more than or equal to 0 and less than b/2, b is the length of a post-cast strip formed by a waterproof laminated structure formed by prefabricated laminated components, and the value of b is preferably 700mm-1000 mm.
And the connecting assembly 20 is used for connecting the back water surface blade plate 19 and the upstream surface blade plate 17. The two sides of the connecting assembly 20 are respectively embedded in the precast concrete of the back water blade plate 19 and the upstream water blade plate 17 to form an integral structure. The connection assembly 20 can have a variety of different embodiments: the water surface blade plate structure can comprise a longitudinal rib and a transverse rib which are respectively arranged in the back water surface blade plate 19 and the upstream surface blade plate 17, and a tie bar which is vertical to the plane where the longitudinal rib and the transverse rib are arranged, wherein the tie bar forms a tie connection between the back water surface blade plate 19 and the upstream surface blade plate 17. The blade plate also can comprise longitudinal ribs and a reinforcing mesh, wherein the longitudinal ribs are respectively arranged in the back water surface blade plate 19 and the upstream surface blade plate 17, and the reinforcing mesh is connected with the longitudinal ribs in a pulling mode to play a role in connecting the back water surface blade plate 19 and the upstream surface blade plate 17. Or longitudinal bars, transverse bars and truss steel bars; indulge the muscle and violently the muscle sets up respectively in surface of a water leaf 19 and upstream face leaf 17, and the connecting reinforcement subassembly adopts the truss reinforcing bar, and the truss reinforcing bar is connected with violently the muscle and indulging the muscle respectively to be connected surface of a water leaf 19 and upstream face leaf 17. Or the truss steel bars are independently arranged between the back water surface blade plate 19 and the upstream surface blade plate 17, and two sides of the truss steel bars are respectively embedded into the back water surface blade plate 19 and the upstream surface blade plate 17. The steel bar ladder can also comprise ladder steel bars which are independently arranged between the back water surface blade plate 19 and the upstream surface blade plate 17, and two sides of the ladder steel bars are respectively embedded into the back water surface blade plate 19 and the upstream surface blade plate 17; in the embodiment, ladder steel bars are taken as an example, and refer to fig. 2; the above-mentioned connection relationship between these reinforcing bars, reinforcing mesh sheets or truss reinforcing bars can be connected by means of welding, binding and the like. In addition, the connection assembly 20 may also include a first reinforcing bar assembly disposed in the back water blade 19, a second reinforcing bar assembly disposed in the upstream blade 17, and a connection reinforcing bar assembly. The connecting steel bar component is respectively connected with the first steel bar component and the second steel bar component. The first steel bar component and the second steel bar component are used for enhancing the strength of the blade plate, and steel bar meshes can be adopted. The connecting steel bar assembly can adopt ladder steel bars or truss steel bars.
The blocking piece 12 may be a quick and easy closing net or a wire mesh, and is disposed at one end or both ends of the prefabricated overlapping member to block the cavity in the longitudinal direction. The block piece 12 may be fixedly connected to the connecting assembly 20, for example by taping, welding, gluing, etc. As shown in fig. 1, when a > 0, the block piece 12 may be between the end of the prefabricated backing water blade 19 and the inner surface (cavity-facing surface) of the upstream water blade 17. The on-site template-free pouring of the cavity at the open end is realized, and the construction workload is reduced.
The water stopping piece 11 is fixedly connected with the plugging piece 12, the water stopping piece 11 can be a buried water stopping steel plate, a buried water stopping strip or a water swelling water stopping strip, one end of the water stopping piece extends into the cavity, and the other end of the water stopping piece extends out of the cavity. The water stop piece 11 can be fixedly connected with the plugging piece 12 through binding, welding, gluing and the like.
The prefabricated superposed member is used for constructing a waterproof superposed structure on site, a post-pouring belt is required to be matched to prevent harmful cracks possibly generated due to uneven self shrinkage or uneven settlement of a reinforced concrete structure, and concrete belts are reserved at corresponding positions of a foundation slab, a wall and a beam according to design or construction specification requirements.
In the present disclosure, when the length difference a between the end portions of the upstream surface vane 17 and the downstream surface vane 19 is greater than 0 or equal to 0, different waterproof laminated structures and construction schemes are adopted according to respective structural characteristics;
the first embodiment is as follows: see fig. 3.
The utility model provides a waterproof superimposed structure, includes first prefabricated superimposed component, the prefabricated superimposed component of second, sets up first prefabricated superimposed component with the post-cast strip between the prefabricated superimposed component of second, the stagnant water piece 11 of first prefabricated superimposed component sets up between first prefabricated superimposed component and post-cast strip, and the stagnant water piece 11 of the prefabricated superimposed component of second sets up between prefabricated superimposed component of second and post-cast strip, has still penetrated connecting reinforcement 3 between first prefabricated superimposed component, the prefabricated superimposed component of second and post-cast strip.
When a is more than 0, the end parts of the upstream surface blades 17 of the first prefabricated superposed member and the second prefabricated superposed member are butted, and a building sealant 7 and a plugging material 8 are embedded between the two upstream surface blades 17; the building sealant 7 is silicone building sealant or polyurethane building sealant. The plugging material 8 is a rod-shaped polyolefin material.
Bolt holes or bolts 15 for connecting the templates are reserved on the outer surface (the side far away from the cavity) of the water-back surface blade plate 19. After the template is arranged on the outer surface of the back water surface blade plate 19, a casting cavity of the post-cast strip is formed between the template and the butted upstream surface blade plate 17, the compensation shrinkage concrete 18 is cast in the casting cavity, and the post-cast strip is formed after solidification.
Further, in order to improve the waterproof performance and reduce the corrosion or damage of moisture to the building sealant 7 and the plugging material 8, a main structure waterproof layer 4 and a waterproof protective layer 5 are sequentially arranged on the outer surface of the upstream side blade plate of the waterproof laminated structure; optionally, an additional waterproof layer 6 is further disposed on the outer surface of the upstream surface blade plate and at the joint of the end portions of the upstream surface blade plates of two adjacent prefabricated overlapped components. The main structure waterproof layer 4 is made of one or more of waterproof materials such as self-adhesive polymer modified asphalt waterproof coiled materials, high-molecular self-adhesive film waterproof coiled materials, ethylene propylene diene monomer waterproof coiled materials and the like, polyethylene foam plastics or non-woven fabrics. The waterproof protective layer 5 is one or a combination of more of polystyrene board, extruded polystyrene board, brick or cement mortar. The additional waterproof layer 6 is one or a plurality of self-adhesive polymer modified asphalt waterproof coiled material, macromolecule self-adhesive film waterproof coiled material, ethylene propylene diene monomer waterproof coiled material and other waterproof materials, and polyethylene foam plastic or non-woven fabric.
The construction process of the embodiment comprises the following steps:
1. the prefabricated superposed wall component is produced in a factory, one end of the component is flush, the length difference between the upstream side blade plate and the back side blade plate at the other end is a (0 < a < b/2), a middle-buried water stop strip 11 and a prefabricated fast and easy closing net 12 are preset in a cavity, and bolt holes or bolts 15 for connecting templates are reserved on the back side blade plate 19. The length of the post-cast strip is b (taking 700mm-1000mm as b).
2. And after the prefabricated superposed components on two adjacent sides are installed on site, the connecting steel bars 3 are installed after the components are hoisted in place, plugging materials 8 such as PE bars are adopted, building sealants 7 are adopted for plugging after seams are cleaned after plugging, and then the cavity is poured and the concrete 2 is poured. After the concrete 2 is poured, optionally, an additional waterproof layer 6 is arranged at the butt joint of the end parts of the upstream surface blade plates of the two adjacent prefabricated superposed components, a main structure waterproof layer 4 and a waterproof protective layer 5 can be further arranged on the outer surface of the upstream surface blade plate of the waterproof superposed structure, after the concrete cavity poured concrete 2 in the cavity shrinks to a certain age, a post-pouring belt template 14 outside the upstream surface blade plate is fixed by using the pre-buried connecting bolts 15, and the compensation shrinkage concrete 18 is poured to finish the post-pouring belt.
Example two: with reference to figure 4 of the drawings,
the difference between the second embodiment and the first embodiment is that a is 0, so that the upstream side blade plate 17 and the downstream side blade plate 19 are equal in length, the waterproof overlapping structure of the second embodiment comprises a first prefabricated overlapping member, a second prefabricated overlapping member and a post-pouring belt arranged between the first prefabricated overlapping member and the second prefabricated overlapping member, the water stop part 11 of the first prefabricated overlapping member is arranged between the first prefabricated overlapping member and the post-pouring belt, the water stop part 11 of the second prefabricated overlapping member is arranged between the second prefabricated overlapping member and the post-pouring belt, and the connecting steel bars 3 are further penetrated among the first prefabricated overlapping member, the second prefabricated overlapping member and the post-pouring belt.
The construction process of the embodiment comprises the following steps:
1. the prefabricated superposed member is produced in a factory, one end of the member is flush, the length difference between the upstream leaf plate and the downstream leaf plate at the other end is 0, and a buried water stop strip 11 and a prefabricated fast and easy closing net 12 are preset in a cavity.
2. After the prefabricated superposed component is hoisted in place, the connecting steel bars 3 are installed, the cavity pouring concrete 2 is poured, the two post-pouring belt templates 14 are fixed on the prefabricated superposed component by utilizing the split bolts 16, the two post-pouring belt templates 14 are respectively arranged on the outer surfaces of the upstream surface blade plates and the rear surface blade plates to form post-pouring belt cavities, and after the concrete cavity pouring concrete 2 in the cavities shrinks to a certain age, the compensation shrinkage concrete 18 is poured to finish the post-pouring belt.
In addition, in order to improve the waterproof performance, a main structure waterproof layer 4 and a waterproof protective layer 5 can be sequentially arranged on the outer surface of the upstream side blade plate of the waterproof laminated structure.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (10)
1. A prefabricated building element, comprising:
the blades on the back water surface and the blades on the upstream water surface are arranged at intervals; a cavity is formed between the two; the cavity is used for casting concrete in situ;
the connecting assembly is used for connecting the blade plate on the back water surface and the blade plate on the upstream water surface;
the plugging piece is plugged at one end or two ends of the prefabricated superposed component and is fixedly connected with the connecting component;
and the water stopping piece is fixedly connected with the plugging piece, one end of the water stopping piece extends into the cavity, and the other end of the water stopping piece extends outwards.
2. A prefabricated building element according to claim 1, wherein: the length difference of the end parts of the upstream surface blade plate and the downstream surface blade plate is a, and a is more than or equal to 0 and less than b/2.
3. A prefabricated building element according to claim 2, wherein: b ranges from 700mm to 1000 mm.
4. A prefabricated building element according to claim 2, wherein:
the connecting assembly comprises longitudinal bars, transverse bars and lacing wires.
5. A prefabricated building element according to claim 2, wherein:
the plugging piece and the connecting assembly are fixedly connected through bundling, welding or gluing.
6. A prefabricated building element according to claim 2, wherein: the water stop piece and the plugging piece are fixedly connected through bundling, welding or gluing.
7. A waterproof laminated structure comprising a prefabricated laminated element according to any one of claims 2 to 6, wherein: the water-stop member of the first prefabricated overlapping component is arranged between the first prefabricated overlapping component and the post-pouring belt, the water-stop member of the second prefabricated overlapping component is arranged between the second prefabricated overlapping component and the post-pouring belt,
and the connecting steel bar penetrates through the first prefabricated overlapped component, the second prefabricated overlapped component and the post-cast strip.
8. A water resistant laminated structure as claimed in claim 7 wherein: and a is more than 0, the end parts of the upstream surface blade plate of the first prefabricated superposed member and the upstream surface blade plate of the second prefabricated superposed member are butted, and building sealant and plugging materials are embedded between the two upstream surface blade plates.
9. A water resistant laminated structure as claimed in claim 8 wherein: the outer surface of the upstream face blade plate of the waterproof superposed structure is sequentially provided with a main structure waterproof layer and a waterproof protective layer.
10. A water resistant laminated structure as claimed in claim 8 wherein: and an additional waterproof layer is also arranged at the butt joint of the end parts of the upstream surface blade plates of two adjacent prefabricated superposed components on the outer surface of the upstream surface blade plate of the waterproof superposed structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022749158.2U CN213979068U (en) | 2020-11-24 | 2020-11-24 | Prefabricated superposed component and waterproof superposed structure formed by same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022749158.2U CN213979068U (en) | 2020-11-24 | 2020-11-24 | Prefabricated superposed component and waterproof superposed structure formed by same |
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| CN213979068U true CN213979068U (en) | 2021-08-17 |
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| CN202022749158.2U Active CN213979068U (en) | 2020-11-24 | 2020-11-24 | Prefabricated superposed component and waterproof superposed structure formed by same |
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