CN215948568U - Hollow outer wall of prestressed basement - Google Patents
Hollow outer wall of prestressed basement Download PDFInfo
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- CN215948568U CN215948568U CN202122329431.0U CN202122329431U CN215948568U CN 215948568 U CN215948568 U CN 215948568U CN 202122329431 U CN202122329431 U CN 202122329431U CN 215948568 U CN215948568 U CN 215948568U
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Abstract
The utility model belongs to the technical field of building components, and particularly discloses a prestressed basement hollow outer wall which comprises a concrete wall body and light filling bodies, wherein the light filling bodies are uniformly arranged in the concrete wall body along the length direction of the concrete wall body; each light filling body is provided with anti-floating steel bars along the length direction, and two ends of each anti-floating steel bar are in a hook structure and used for hooking horizontal steel bars in the hidden beam; the concrete wall is embedded with retarded adhesive or adhesive prestressed steel bars along the length direction, and the retarded adhesive or adhesive prestressed steel bars are in a parabola shape and penetrate through a tension area of the concrete wall. The hollow outer wall of the prestressed basement can keep high bending-resistant bearing capacity, and hydration heat generated during concrete curing can be rapidly transferred outwards along the light filling body, so that the problem of cracking of the outer wall of the basement is solved.
Description
Technical Field
The embodiment of the application relates to the technical field of building components, in particular to a hollow outer wall of a prestressed basement.
Background
The design length of basement outer wall is generally longer, and it is the overall structure who utilizes concrete continuous casting shaping, and the concrete wall can produce great temperature stress and concrete shrink at the curing stage to cause basement outer wall fracture formation crack, the crack arouses the infiltration problem can seriously influence the performance and the durability of basement outer wall.
At present, when the basement exterior wall is cast and molded, the expansion agent is generally added to compensate the shrinkage of concrete, so that the compactness of the concrete is improved to prevent the exterior wall panel from cracking.
However, the heat of hydration generated inside the large-volume underground external wall panel is high, and the addition of the expanding agent can cause the change of hydration products, so that the actual effect of the expanding agent is greatly reduced and even fails. Meanwhile, the concrete consumption for pouring and forming the basement outer wall is large, so that the manufacturing cost of the basement outer wall is high.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application aims to provide a hollow outer wall of a prestressed basement, and aims to solve the technical problems that the existing outer wall of the basement is easy to crack and seep water and the manufacturing cost is high.
The technical scheme for realizing the purpose of the utility model is as follows:
the hollow outer wall of the prestressed basement comprises a concrete wall body and a light filling body;
the light filling bodies are uniformly arranged in the concrete wall along the length direction of the concrete wall;
anti-floating steel bars are arranged in each light filling body along the length direction of the light filling body, and two ends of each anti-floating steel bar are in a hook structure and used for hooking horizontal steel bars in the hidden beam;
the concrete wall is embedded with retarded adhesive or adhesive prestressed reinforcements along the length direction, and the retarded adhesive or adhesive prestressed reinforcements are parabolic and penetrate through a tension area of the concrete wall.
As a further improvement of the embodiment of the application, the distance S1 between each light filling body and the stress side end surface in the thickness direction of the concrete wall is larger than the distance S2 between each light filling body and the indoor side end surface in the thickness direction of the concrete wall.
As a further improvement of the embodiments of the present application, the distance S1 is 1.5-2 times the distance S2.
As a further improvement of the embodiment of the application, the spacing S3 between any two adjacent light-weight filling bodies is 0.5-1 times the diameter D of each light-weight filling body.
As a further improvement of the embodiment of the application, the hidden beam is arranged in a floor wall structure, and the height H of the hidden beam is the same as the width L of the concrete wall.
As a further improvement of the embodiment of the application, the width L of the hidden beam0The width L of the concrete wall is the same as that of the concrete wall.
As a further improvement of the embodiment of the application, the diameter d of the anti-floating reinforcing steel bar is any one of 6mm, 8mm and 10 mm.
Compared with the prior art, the advantages or beneficial effects of the embodiments of the present application at least include:
the hollow outer wall of prestressed basement that this application embodiment provided evenly sets up the light obturator along its length direction in concrete wall to along its length direction in every light obturator bury the anti-floating steel bar that both ends are the crotch structure underground, and set up the slow bonding that is the parabola type and run through concrete wall and draw the district or have bonding prestressing steel along its length direction in concrete wall, thereby reduced the concrete volume of pouring shaping basement outer wall by a wide margin, saved the cost. More importantly, the light filling body and the slow bonding or bonding prestressed steel bars are buried in the basement outer wall panel, so that the basement outer wall can be guaranteed to have the bending resistance and the bearing capacity equivalent to that of a solid wall, hydration heat generated by concrete pouring can be rapidly transmitted outwards along the light filling body, the adverse effects of concrete shrinkage and temperature stress are weakened on the premise that no expanding agent is added, and the basement outer wall is effectively prevented from cracking.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some of the embodiments described in the present application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
Fig. 1 is a first cross-sectional view of a hollow outer wall of a prestressed basement according to an embodiment of the present application;
fig. 2 is a second cross-sectional view of the hollow outer wall of the prestressed basement according to the embodiment of the present application;
fig. 3 is a third cross-sectional view of the hollow outer wall of the prestressed basement provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of a lightweight filling body in a hollow outer wall of a prestressed basement according to an embodiment of the present application.
Reference numerals: 1-concrete wall body; 2-light filling body; 3-hidden beam; 4-anti-floating steel bars; 5-slow bonding or bonding prestressed reinforcement; 41-hook structure.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the following embodiments of the present invention, the terms "front", "rear", "upper", "lower", "inner", "outer", "left", "right", "center", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; may be a mechanical or electrical connection; either directly or indirectly through an intermediate media, or the two elements may be in internal communication. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In order to solve the technical problems of easy cracking and water seepage and high manufacturing cost of the existing basement external wall panel, the embodiment provides a prestressed basement hollow external wall, please refer to fig. 1 to 3. Fig. 1 is a first cross-sectional view of a hollow outer wall of a prestressed basement provided in the present embodiment; fig. 2 is a second cross-sectional view of the hollow outer wall of the prestressed basement provided in the present embodiment; fig. 3 is a third cross-sectional view of the hollow outer wall of the prestressed basement provided in the present embodiment; fig. 4 is a schematic structural diagram of the lightweight filler in the hollow outer wall of the prestressed basement provided in this embodiment.
Referring to fig. 1 to 4, the hollow exterior wall of the prestressed basement includes a concrete wall 1 and a lightweight filler 2. The concrete wall 1 is uniformly provided with light filling bodies 2 along the length direction. Each light filling body 2 is provided with anti-floating steel bars 4 along the length direction thereof, and two ends of each anti-floating steel bar 4 are in hook structures 41 for hooking horizontal steel bars in the hidden beam 3. The concrete wall body 1 is embedded with retarded adhesive or adhesive prestressed reinforcements 5 along the length direction, and the retarded adhesive or adhesive prestressed reinforcements 5 are in a parabolic shape and penetrate through a tension area of the concrete wall body 1. The lightweight filling body 2 is a lightweight aggregate filling body prepared by utilizing high-strength coarse lightweight powder, such as lightweight aggregate concrete.
It should be understood by those skilled in the art that when the concrete wall is poured, a PVC hollow pipe may be placed in the middle of the mold of the concrete wall 1 in advance, and then the concrete wall 1 is poured and formed, and the light filler 2 is filled in the PVC hollow pipe. Or when the concrete wall 1 is poured, the prefabricated tubular light filling body 2 is placed in the middle of the mould of the concrete wall 1, and then the concrete wall 1 is poured and formed.
According to the hollow outer wall of the prestressed basement, the lightweight filling bodies 2 are uniformly arranged in the concrete wall body 1 along the length direction of the lightweight filling bodies, the anti-floating reinforcing steel bars 4 with hook structures 41 at two ends are embedded in each lightweight filling body 2 along the length direction of the lightweight filling body, and the slow bonding or bonding prestressed reinforcing steel bars 5 penetrating through the tensile area of the concrete wall body 1 are embedded in the concrete wall body 1 along the length direction of the lightweight filling body, so that the concrete consumption for pouring the outer wall board of the basement is greatly reduced, and the manufacturing cost is saved. More importantly, in the embodiment, the light filling body 2 and the slow-bonding or bonding prestressed steel bars 5 are embedded in the concrete wall body 1, on one hand, the light filling body 2 has the characteristics of light self weight, high strength, heat preservation, heat insulation, shock resistance, impermeability and the like, and on the other hand, the slow-bonding or bonding prestressed steel bars 5 have the characteristics of prestress and high strength, so that the use amount of the steel bars is saved, and meanwhile, the basement outer wall is ensured to have the bending resistance bearing capacity basically the same as that of a solid wall body. Meanwhile, the relatively poor heat conductivity of the concrete causes that the hydration heat generated by the concrete wall 1 during curing cannot be dissipated in time, and the hydration heat is accumulated and conducted to cause temperature stress, and the lightweight filler 2 is embedded in the concrete wall 1 in the embodiment, so that the hydration heat generated by pouring the concrete can be rapidly transferred outwards along the lightweight filler 2, the influence of the temperature stress and the concrete shrinkage in the concrete wall 1 is weakened, and the problem of cracking of the basement external wall panel is solved.
In the present embodiment, the distance S1 between each light weight filler 2 and the force-receiving side end surface in the thickness direction of the concrete wall 1 is greater than the distance S2 between each light weight filler 2 and the indoor side end surface in the thickness direction of the concrete wall 1. Note that, the side a shown in fig. 1 to 3 is the indoor side, the side B is the force receiving side (soil filling side), and the distance between each light weight filler 2 and the end surface of the side a is S2, and the distance between each light weight filler 2 and the end surface of the side B is S1, taking the orientation shown in fig. 3 as an example. Because the acting force borne by the side B of the concrete wall 1 is obviously greater than that borne by the side A, the distance S1 between each light filler 2 and the side end face of the side B of the concrete wall 1 is greater than the distance S2 between each light filler 2 and the side end face of the side B of the concrete wall 1, so that the use performance of the hollow outer wall of the prestressed basement is improved.
In this embodiment, the distance S1 between each light filler 2 and the end surface at the side B of the concrete wall 1 is 1.5 to 2 times the distance S2 between each light filler 2 and the end surface at the side a of the concrete wall 1, so that the concrete wall 1 can completely meet the stress requirement at the filler side, and at the same time, the hydration heat in the concrete can be transmitted to the light filler 2 as quickly as possible, thereby further improving the crack resistance of the basement exterior wall panel. It should be noted that the distance S1 is preferably 120-150mm, and the distance S2 is preferably 60-100 mm.
In the embodiment, the distance S3 between any two adjacent light-weight filling bodies 2 is 0.5-1 times the diameter D of each light-weight filling body 2, so as to ensure that the temperature stress is quickly transmitted, and reduce the concrete shrinkage to enhance the cracking resistance of the concrete wall 1.
In the present embodiment, the hidden beam 3 is arranged in the floor wall structure, and the width L of the hidden beam 30The width L of the prestressed basement hollow outer wall is the same as that of the concrete wall 1, so that the prestressed basement hollow outer wall can be combined with a floor structure into a whole, and the pressure resistance of the floor structure is improved. In the example of the orientation shown in fig. 1, the width L of the concrete wall 1 is the distance between the a-side end surface and the B-side end surface.
In the present embodiment, the height H of the hidden beam 3 is the same as the width of the concrete wall 1, so that the concrete wall 1 can be stably fixed on the hidden beam 3. It should be noted that the height direction of the hidden beam 3 is perpendicular to the width direction of the concrete wall 1, and the height H of the hidden beam 3 is designed to be the same as the width L of the concrete wall 1 in this embodiment, so that the hidden beam 3 can stably fix the concrete wall 1, and the stability of the floor structure is ensured.
In this embodiment, the diameter d of the anti-floating reinforcement 4 is any one of 6mm, 8mm and 10mm, so that the lightweight filler 2 can be stably fixed to the anti-floating reinforcement 4, and the lightweight filler 2 is prevented from being separated from the concrete wall 1. It should be noted that, the preferable material of the anti-floating reinforcement 4 is HPB300, and the hook structures 41 connected to both ends of the anti-floating reinforcement 4 can be connected to the horizontal reinforcement in the hidden beam 3, so as to facilitate the lap joint of the anti-floating reinforcement 4 and the horizontal reinforcement of the hidden beam 3.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. A prestressed basement hollow outer wall is characterized by comprising a concrete wall body and a light filling body;
the light filling bodies are uniformly arranged in the concrete wall along the length direction of the concrete wall;
anti-floating steel bars are arranged in each light filling body along the length direction of the light filling body, and two ends of each anti-floating steel bar are in a hook structure and used for hooking horizontal steel bars in the hidden beam;
the concrete wall is embedded with retarded adhesive or adhesive prestressed reinforcements along the length direction, and the retarded adhesive or adhesive prestressed reinforcements are parabolic and penetrate through a tension area of the concrete wall.
2. The prestressed basement hollow outer wall according to claim 1, wherein the distance S1 between each lightweight filler and the force-receiving side end surface in the thickness direction of the concrete wall is greater than the distance S2 between each lightweight filler and the indoor side end surface in the thickness direction of the concrete wall.
3. The prestressed basement hollow exterior wall according to claim 2, wherein the distance S1 is 1.5-2 times the distance S2.
4. The prestressed basement hollow outer wall according to claim 1, wherein the distance S3 between any two adjacent light weight fillers is 0.5-1 times the diameter D of each light weight filler.
5. The hollow prestressed basement exterior wall according to claim 1, wherein the hidden beam is buried in a floor wall structure, and the height H of the hidden beam is the same as the width L of the concrete wall.
6. The prestressed basement hollow exterior wall according to claim 1, wherein the width L of the hidden beam0The width L of the concrete wall is the same as that of the concrete wall.
7. The hollow basement exterior wall according to claim 1, wherein the diameter d of the anti-floating reinforcement is any one of 6mm, 8mm and 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329431.0U CN215948568U (en) | 2021-09-26 | 2021-09-26 | Hollow outer wall of prestressed basement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329431.0U CN215948568U (en) | 2021-09-26 | 2021-09-26 | Hollow outer wall of prestressed basement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215948568U true CN215948568U (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122329431.0U Active CN215948568U (en) | 2021-09-26 | 2021-09-26 | Hollow outer wall of prestressed basement |
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| CN (1) | CN215948568U (en) |
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2021
- 2021-09-26 CN CN202122329431.0U patent/CN215948568U/en active Active
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