CN212078280U - Structure for reducing contraction cracks of basement exterior wall - Google Patents
Structure for reducing contraction cracks of basement exterior wall Download PDFInfo
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- CN212078280U CN212078280U CN202020590950.5U CN202020590950U CN212078280U CN 212078280 U CN212078280 U CN 212078280U CN 202020590950 U CN202020590950 U CN 202020590950U CN 212078280 U CN212078280 U CN 212078280U
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- basement outer
- bending
- wall body
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Abstract
The utility model discloses a reduce basement outer wall shrinkage crack's structure, including the basement outer wall, be equipped with a plurality of vertical weak areas along the length direction interval on the basement outer wall, the outside of basement outer wall is equipped with a plurality of and vertical weak area one-to-one's the wall body of bending, bend about the wall body both ends respectively with the basement outer wall body pouring shaping of the vertical weak area left and right sides that corresponds, vertical weak area is for the wall body that post-poured concrete curing formed, the basement outer wall, vertical weak area and the wall body of bending all are equipped with waterproof enhancement layer towards outdoor side. When the basement outer wall is subjected to large shrinkage deformation, the longitudinal weak belt is cracked, so that the deformation releasing effect is achieved, and meanwhile, the bending wall body plays a role in pulling and fixing two sections of basement outer walls, so that the overall firmness of the basement outer walls is guaranteed; and the basement outer wall, the longitudinal weak strip and one side face of the bent wall body facing outdoors are all provided with waterproof reinforcing layers, so that the anti-seepage performance of the longitudinal weak strip structure position is ensured.
Description
Technical Field
The utility model belongs to the technical field of building engineering, concretely relates to reduce cracked structure of basement outer wall shrink.
Background
With the development of high-rise buildings, the length of most basements exceeds 30m, and some basements even reach hundreds of meters far beyond the maximum distance of a concrete shrinkage joint. And set up the expansion joint and require the structure of both sides completely independent, this brings a great deal of inconvenience to design and use, and the setting up of expansion joint also makes the waterproof degree of difficulty increase of basement moreover, and the rubber waterstop in the expansion joint commonly used also has ageing problem. Therefore, at present, most basements of buildings do not have expansion joints, and the problem of overlong basements is solved through other ways, which is generally called as 'seamless design'.
At present, there are three approaches for seamless design of basements: post-cast strip, compensation shrinkage concrete and prestressed concrete.
Post-cast strip is a method provided by the specification and is the most common way. However, the post-cast strip usually needs 2 months from the setting to the concrete pouring, and during the period, a lot of construction waste is accumulated on the post-cast strip, so that the floors above the basement are relatively easy to clean, but the bottom plate of the basement, particularly the ground beam with large section size, is very difficult to clean. When the basement concrete is poured, concrete grout easily flows into a ground beam of a post-cast strip from a template seam, if the concrete grout is not cleaned in time, the later cleaning becomes difficult, and the construction quality is affected and hidden troubles are left if the concrete grout is not well treated. In addition, the post-cast strip can only solve the problem of early cracks of concrete, and cannot play a role in temperature stress caused by creep and temperature difference of the concrete after casting.
The shrinkage-compensating concrete is prepared by adding a certain proportion of expanding agent into concrete and arranging an expansion reinforcing band according to a certain length. Research shows that the shrinkage time of concrete is inconsistent with the expansion time of expansion agent for generating compensation shrinkage, so that the compensation shrinkage concrete cannot achieve ideal anti-cracking performance, and moreover, the performance of the expansion agent produced by some manufacturers is unstable, so that the anti-cracking effect is directly influenced and even can be opposite.
The prestressed concrete technology can be used for solving the problem of the overlong basement. However, due to the prestress loss, the tensioning length is generally controlled to be about 60m, if the length of the basement exceeds the range, a post-cast strip needs to be arranged as a tensioning working surface, the construction problem similar to the post-cast strip can also occur, the tensile stress generated by the shrinkage of the concrete is made up through prestressed reinforcements, and the construction cost is improved to a certain extent.
The utility model aims at providing a reduction basement outer wall shrinkage crack's that intensity is high, the antiseep performance is good structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provide a structure for reducing the contraction cracks of the basement outer wall, wherein the longitudinal weak zones and the bent wall body are correspondingly arranged on the basement outer wall at certain intervals, and when the basement outer wall has larger contraction deformation, the longitudinal weak zones crack at the position, so that the effect of releasing deformation is achieved, the number of cracks on the basement outer wall can be greatly reduced, and the bent wall body plays a role of fixing two sections of basement outer walls by pulling, thereby ensuring the overall firmness of the basement outer wall; and the basement outer wall, the longitudinal weak strip and one side surface of the bent wall body facing outdoors are all provided with waterproof reinforced layers, so that the longitudinal weak strip is guaranteed to have higher anti-seepage performance at the structural position, and the use function of the inner space of the basement is not influenced; the longitudinal weak belt does not need to be provided with a water stop belt, the structure is simple, the construction is convenient, the construction period is effectively shortened, and the construction cost and the maintenance cost of the basement outer wall are reduced.
For realizing above-mentioned mesh, the technical scheme of the utility model a reduce basement outer wall shrinkage crack's structure is designed, including the basement outer wall, be equipped with a plurality of vertical weak areas along the length direction interval on the basement outer wall, the outside of basement outer wall be equipped with a plurality of with the wall body of bending of vertical weak area one-to-one, bend about the wall body both ends respectively with the basement outer wall body pouring shaping of the vertical weak area left and right sides that corresponds, vertical weak area is the wall body that the post-cast concrete solidification formed, and the both sides face in vertical weak area all with the both sides face of basement outer wall flushes, basement outer wall, vertical weak area and the wall body of bending all are equipped with waterproof enhancement layer towards outdoor one side.
The utility model relates to a reduce structure of basement outer wall shrinkage crack, through set up vertical weak area and bend the wall body at every certain distance correspondence on the basement outer wall, when the basement outer wall takes place great shrinkage deformation, then the vertical weak area is here cracked, thereby reaches the effect of releasing the deformation, thereby can reduce the crack quantity on the basement outer wall in a large number, bend the wall body simultaneously and play the effect of drawing and consolidating two sections basement outer walls, guaranteed the whole fastness of basement outer wall; and the basement outer wall, the longitudinal weak strip and one side surface of the bent wall body facing outdoors are all provided with waterproof reinforced layers, so that the longitudinal weak strip is guaranteed to have higher anti-seepage performance at the structural position, and the use function of the inner space of the basement is not influenced; the longitudinal weak belt does not need to be provided with a water stop belt, the structure is simple, the construction is convenient, the construction period is effectively shortened, and the construction cost and the maintenance cost of the basement outer wall are reduced.
In order to ensure smooth construction of the structure for reducing the contraction cracks of the basement outer wall, the preferable technical scheme is that the length of the longitudinal weak zones is 0.9-1.1 m, the width of the longitudinal weak zones is 0.2-0.3 m, and the length of the basement outer wall between every two adjacent longitudinal weak zones is 35-45 m.
Further preferably, the longitudinal weakening zone has a length of 1m and a width of 0.25 m. The integral strength of the contraction crack structure of the basement outer wall is guaranteed, the manufacturing cost is guaranteed, and the economic practicability is high.
In order to further ensure the overall strength of the basement outer wall, the inner side of the basement outer wall is further provided with a plurality of bending wall bodies which are in one-to-one correspondence with the longitudinal weak zones, and the left end and the right end of each bending wall body are integrally cast with the basement outer wall on the left side and the right side of the corresponding longitudinal weak zone respectively. The position that does not hinder the inside usage space of basement can also set up the wall body of bending that is located basement space inside to the bulk strength of basement outer wall has further been guaranteed.
In order to facilitate smooth construction of the bent wall body, the bent wall body is of a right-angle bending structure, two right-angle side wall bodies of the bent wall body and the outer walls of the basement on the left side and the right side of the corresponding longitudinal weak zone form an included angle of 45 degrees, and the length of each right-angle side wall body is 1.2-1.5 m. The wall body design of bending has guaranteed the bulk strength of this basement outer wall for right angle type bending structure on the one hand, and on the other hand has reduced the consumptive material of the wall body of bending as far as possible, has reduced engineering cost.
Further, the preferable technical scheme is that the length of the right-angle wall body is 1.35 m.
The preferable technical scheme is that the waterproof enhancement layer is a waterproof coating layer or a waterproof roll material layer. The waterproof enhancement layer of the structure has strong universality and high implementation feasibility.
The utility model has the advantages and the beneficial effects that:
1. the utility model relates to a reduce structure of basement outer wall shrinkage crack, through set up vertical weak area and bend the wall body at every certain distance correspondence on the basement outer wall, when the basement outer wall takes place great shrinkage deformation, then the vertical weak area is here cracked, thereby reaches the effect of releasing the deformation, thereby can reduce the crack quantity on the basement outer wall in a large number, bend the wall body simultaneously and play the effect of drawing and consolidating two sections basement outer walls, guaranteed the whole fastness of basement outer wall; and the basement outer wall, the longitudinal weak strip and one side surface of the bent wall body facing outdoors are all provided with waterproof reinforced layers, so that the longitudinal weak strip is guaranteed to have higher anti-seepage performance at the structural position, and the use function of the inner space of the basement is not influenced; the longitudinal weak belt does not need to be provided with a water stop belt, the structure is simple, the construction is convenient, the construction period is effectively shortened, and the construction cost and the maintenance cost of the basement outer wall are reduced.
2. The inner side of the basement outer wall is also provided with a plurality of bent wall bodies which are in one-to-one correspondence with the longitudinal weak zones, and the left end and the right end of each bent wall body are respectively integrally cast and formed with the basement outer wall on the left side and the right side of the corresponding longitudinal weak zone. The position that does not hinder the inside usage space of basement can also set up the wall body of bending that is located basement space inside to the bulk strength of basement outer wall has further been guaranteed.
3. The wall body of bending is right angle type bending structure, two right angle limit wall bodies of the wall body of bending are 45 contained angles with the basement outer wall of the vertical weak area left and right sides that corresponds, the length of right angle limit wall body is 1.2 ~ 1.5 m. The wall body design of bending has guaranteed the bulk strength of this basement outer wall for right angle type bending structure on the one hand, and on the other hand has reduced the consumptive material of the wall body of bending as far as possible, has reduced engineering cost.
4. The waterproof enhancement layer is a waterproof coating layer or a waterproof roll material layer. The waterproof enhancement layer of the structure has strong universality and high implementation feasibility.
Drawings
FIG. 1 is a top view of a structure for reducing shrinkage cracks in the outer wall of a basement in example 1;
FIG. 2 is a top view of a structure for reducing shrinkage cracks in the outer wall of a basement in example 2.
In the figure: 1. a basement exterior wall; 2. a longitudinal line of weakness; 3. bending the wall body; 3-1, right-angle side wall.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
As shown in fig. 1, a structure for reducing contraction cracks of a basement exterior wall comprises a basement exterior wall 1, a plurality of longitudinal weak zones 2 are arranged on the basement exterior wall 1 at intervals along the length direction, a plurality of bending wall bodies 3 corresponding to the longitudinal weak zones 2 one to one are arranged on the outer side of the basement exterior wall 1, the left end and the right end of each bending wall body 3 are integrally cast with the basement exterior wall 1 on the left side and the right side of the corresponding longitudinal weak zone 2, the longitudinal weak zones 2 are wall bodies formed by post-cast concrete curing, two side faces of the longitudinal weak zones 2 are flush with two side faces of the basement exterior wall 1, and waterproof reinforcing layers are arranged on one outdoor side faces of the basement exterior wall 1, the longitudinal weak zones 2 and the bending wall bodies 3.
Preferably, the length of the longitudinal weak zones 2 is 0.9-1.1 m, the width of the longitudinal weak zones 2 is 0.2-0.3 m, and the length of the basement exterior wall 1 between two adjacent longitudinal weak zones 2 is 35-45 m.
More preferably, the longitudinal weakening zone 2 has a length of 1m and a width of 0.25 m.
Preferably, the bending wall 3 is a right-angle bending structure, two right-angle side walls 3-1 of the bending wall 3 form an included angle of 45 degrees with the basement outer wall 1 on the left side and the right side of the corresponding longitudinal weak strip 2, and the length of each right-angle side wall 3-1 is 1.2-1.5 m.
Preferably, the length of the right-angle wall 3-1 is 1.35 m.
Preferably, the waterproof reinforcing layer is a waterproof coating layer or a waterproof roll material layer.
Example 2
As shown in fig. 2, a structure for reducing contraction cracks of an exterior wall of a basement is different from embodiment 1 in that a plurality of bent walls 3 corresponding to the longitudinal weak strips 2 one by one are further arranged on the inner side of the exterior wall 1 of the basement, and the left and right ends of each bent wall 3 are respectively integrally cast with the exterior wall 1 of the basement on the left and right sides of the corresponding longitudinal weak strip 2.
The construction principle of reducing the contraction cracks of the basement outer wall in the embodiment 1 or 2 is as follows:
lap-jointing the steel bar structures in the basement outer wall 1 and the bent wall bodies 3; then, building pouring molds of the basement outer wall 1 and the plurality of bent walls 3, and integrally pouring and molding the basement outer wall 1 and the plurality of bent walls 3; building a pouring mold of the longitudinal weak strip 2, and pouring the longitudinal weak strip 2; and arranging a waterproof reinforcing layer (painting waterproof paint or laying waterproof coiled materials) on one side surface of the basement outer wall 1, the longitudinal weak strip 2 and the bent wall body 3 facing the outside of the basement.
Some basement exterior walls 1 are close to the building red line, and it should be noted that the outermost corners of the longitudinal weak strips 2 cannot protrude out of the building red line, or the bending angles of the longitudinal weak strips 2 are properly adjusted according to the building red line; in addition, the basement bottom plate also has the possibility of water seepage of the longitudinal weak strip 2, and a water collecting pit needs to be arranged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A structure for reducing the contraction cracks of the basement outer wall is characterized by comprising the basement outer wall (1), a plurality of longitudinal weak belts (2) are arranged on the basement outer wall (1) at intervals along the length direction, a plurality of bending wall bodies (3) which are in one-to-one correspondence with the longitudinal weak strips (2) are arranged on the outer side of the basement outer wall (1), the left end and the right end of the bent wall body (3) are respectively and integrally cast with the basement outer wall (1) at the left side and the right side of the corresponding longitudinal weak strip (2), the longitudinal weak strip (2) is a wall body formed by post-cast concrete curing, and two side surfaces of the longitudinal weak belt (2) are flush with two side surfaces of the basement outer wall (1), and waterproof reinforcing layers are arranged on one side faces, facing outdoors, of the basement outer wall (1), the longitudinal weak strip (2) and the bent wall body (3).
2. The structure for reducing the contraction cracks of the basement exterior wall as claimed in claim 1, wherein the longitudinal weak strips (2) have a length of 0.9-1.1 m and a width of 0.2-0.3 m, and the basement exterior wall (1) between two adjacent longitudinal weak strips (2) has a length of 35-45 m.
3. The structure for reducing the shrinkage cracks of the outer wall of the basement as claimed in claim 2, wherein the longitudinal weak strip (2) has a length of 1m and a width of 0.25 m.
4. The structure for reducing the shrinkage cracks of the basement exterior wall according to claim 3, wherein a plurality of bending walls (3) corresponding to the longitudinal weak strips (2) one by one are further arranged on the inner side of the basement exterior wall (1), and the left end and the right end of each bending wall (3) are respectively cast and formed with the basement exterior wall (1) on the left side and the right side of the corresponding longitudinal weak strip (2) in an integrated manner.
5. The structure for reducing the contraction cracks of the basement exterior wall according to claim 4, wherein the bending wall (3) is a right-angle bending structure, two right-angle side walls (3-1) of the bending wall (3) form an included angle of 45 degrees with the basement exterior wall (1) on the left side and the right side of the corresponding longitudinal weak strip (2), and the length of each right-angle side wall (3-1) is 1.2-1.5 m.
6. The structure for reducing the shrinkage cracks of the outer wall of the basement as claimed in claim 5, wherein the length of the right-angle side wall body (3-1) is 1.35 m.
7. The structure for reducing the shrinkage cracks of the outer wall of the basement as claimed in claim 6, wherein the waterproof reinforcing layer is a waterproof paint layer or a waterproof roll material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020590950.5U CN212078280U (en) | 2020-04-20 | 2020-04-20 | Structure for reducing contraction cracks of basement exterior wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020590950.5U CN212078280U (en) | 2020-04-20 | 2020-04-20 | Structure for reducing contraction cracks of basement exterior wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212078280U true CN212078280U (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020590950.5U Expired - Fee Related CN212078280U (en) | 2020-04-20 | 2020-04-20 | Structure for reducing contraction cracks of basement exterior wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212078280U (en) |
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2020
- 2020-04-20 CN CN202020590950.5U patent/CN212078280U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201204 |