CN218204581U - Basement expansion joint structure - Google Patents
Basement expansion joint structure Download PDFInfo
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- CN218204581U CN218204581U CN202222499205.1U CN202222499205U CN218204581U CN 218204581 U CN218204581 U CN 218204581U CN 202222499205 U CN202222499205 U CN 202222499205U CN 218204581 U CN218204581 U CN 218204581U
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Abstract
The utility model discloses a basement expansion joint structure, which comprises a telescopic water stop steel plate; both sides of the expansion joint are reinforced concrete walls, each reinforced concrete wall comprises a foundation layer and a top plate layer from bottom to top, and telescopic water stop steel plates are arranged at the expansion joint of each foundation layer and each top plate layer; waterproofing membrane has all been laid to the top of foundation layer bottom and top sheet layer, waterproofing membrane can seal the top and the bottom at expansion joint. By adopting the scheme, the base layer and the top plate layer are connected only through the telescopic water stop steel plate, so that the temperature stress under the actions of concrete shrinkage and atmospheric temperature difference is greatly reduced, only a small gap is reserved, one-time construction of waterproof coiled materials and the like can be realized, and the water leakage risk is reduced; whole waterproofing membrane parcel has formed a holistic basement space in the outside, has avoided construction difficulties such as the inside waterproofing membrane of being under construction of expansion joint between the reinforced concrete wall and the risk of leaking.
Description
Technical Field
The utility model relates to a construction technical field, concretely relates to basement expansion joint structure.
Background
Along with the increasingly accelerated urbanization process, basements of urban buildings are larger in area and longer in length, and the basements are too long, so that large temperature stress is easily generated under the dual effects of shrinkage and creep of a concrete structure and atmospheric temperature difference, a base plate, a side wall and a top plate of the basements crack and leak water, and the use is influenced; generally, two modes of resisting and releasing are adopted, wherein half of resisting is realized by calculating temperature stress, reinforcing steel bars of a beam plate are added or prestressed steel bars are added, and the construction cost is greatly increased; the expansion joint is arranged in the basement, so that the basement is divided into a plurality of basements, the length of the basement is effectively reduced, the phenomena of structural cracking caused by concrete shrinkage creep and atmospheric temperature difference are reduced, the construction cost is greatly saved, and the use is more.
Fig. 1 shows a common method for constructing an expansion joint by arranging the expansion joint on a beam slab above a foundation, and for convenience of construction, the foundation layer is connected into a whole without the expansion joint. This expansion joint structure has two problems: 1. horizontal force between basements on two sides of the expansion joint is transmitted in the gap of the expansion joint without any measures, so that the basements on the two sides are used as one side to be near empty, the structural response is increased under the action of an earthquake, and the soil thrust is borne by the integral structure under the action of unbalanced soil pressure on the outer side, so that the integral construction cost is high, and the structural safety has high problems; 2. the foundation layer is constructed simultaneously, so that the foundation layers are connected substantially, the temperature stress of the foundation layer is increased greatly under the action of concrete shrinkage and creep (main) and atmospheric temperature difference (secondary), and large stress concentration is generated at the corresponding position of an expansion joint, so that the position of a common structural crack is easy to generate a water leakage phenomenon.
Fig. 2 is another commonly used expansion joint method, through setting up two reinforced concrete walls, cuts into two basements with the basement completely, and each floor beam slab, foundation layer all do not connect, reserve great space between two reinforced concrete walls and conveniently construct, fill the coarse sand behind the space between, pass through reinforced concrete wall, coarse sand as biography power medium, realize the transmission of both sides basement horizontal force under effects such as earthquake, soil pressure. This configuration has several problems: 1. because the basement forms two independent spaces, two reinforced concrete walls and two side walls consisting of coarse sand must be subjected to waterproof construction respectively, the width of the expansion joint must be large enough (more than 1 m) to facilitate the entering of constructors, the waterproof reliability of the basement is seriously reduced, the area waste of the basement space is increased, and the construction cost of the basement is greatly improved; 2. the civil construction and the waterproof engineering construction of the double-side wall are difficult.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art and provide a basement expansion joint structure, by adopting the scheme, the foundation layer and the top plate layer are connected only through the telescopic water stop steel plate, so that the temperature stress under the action of concrete shrinkage and atmospheric temperature difference is greatly reduced, only a small gap is reserved, one-time construction of waterproof coiled materials and the like can be realized, and the water leakage risk is reduced; whole waterproofing membrane parcel has formed a holistic basement space in the outside, has avoided construction degree of difficulty and the risk of leaking such as the inside construction waterproofing membrane of expansion joint between the reinforced concrete wall.
The utility model discloses a following technical scheme realizes:
a basement expansion joint structure comprises a telescopic water stop steel plate;
both sides of the expansion joint are reinforced concrete walls, each reinforced concrete wall comprises a foundation layer and a top plate layer from bottom to top, and telescopic water stop steel plates are arranged at the expansion joint of each foundation layer and each top plate layer;
waterproofing membrane has all been laid to the top of basic layer bottom and top sheet layer, waterproofing membrane can seal the top and the bottom at expansion joint.
Compared with the prior art, because the basement has formed two independent spaces, two side walls that reinforced concrete wall and coarse sand are constituteed must carry on waterproof construction respectively, the width of expansion joint must be enough big, just can make things convenient for constructor to get into, this has just seriously reduced the waterproof reliability of basement, has increased the area waste of basement space, and has greatly improved the cost scheduling problem of basement, the utility model provides a basement expansion joint structure, in the concrete scheme, the expansion joint divides the basement into a plurality of, and the expansion joint both sides set up reinforced concrete wall, and it is two-layer about dividing into, namely foundation layer and roof slab, and the foundation layer is connected through telescopic stagnant water steel sheet, and the roof slab is connected through telescopic stagnant water steel sheet, thereby makes the expansion joint only leave less gap, wherein, the roof slab is formed through the concrete wall that turns over, namely local secondary construction, thereby connects with stagnant water steel sheet between the concrete wall; the water stop steel plate is provided with a telescopic V-shaped groove, the basement is divided into two parts from the structural stress angle, and the base layer and the top plate layer are connected only through the water stop steel plate with the telescopic V-shaped groove, so that the temperature stress under the action of concrete shrinkage and atmospheric temperature difference is greatly reduced; the bottom of the foundation layer and the top of the top plate layer are both continuously paved with two waterproof coiled materials, the waterproof coiled materials cover the upper end of the whole concrete wall, and the reserved gap of the expansion joint is small, so that the waterproof coiled materials can cover the upper end of the expansion joint, the waterproof coiled materials can be paved at one time, the water leakage risk is reduced, namely, from the use angle of the building, the whole waterproof coiled materials are wrapped outside, the whole basement space is formed, and the construction difficulty and the water leakage risk of the waterproof coiled materials and the like in the construction inside the expansion joint between the reinforced concrete walls are avoided; and then carrying out outdoor backfill and ground level laying on the waterproof coiled material.
Further optimizing, a protective cover plate is arranged at the top of the expansion joint, and the waterproof coiled material of the top plate layer is positioned between the protective cover plate and the expansion joint; for the waterproofing membrane at protection expansion joint top, in this scheme, set up protection cover plate, protection cover plate are located terrace face below in the waterproofing membrane top of expansion joint top position.
Further optimization, a double-layer asphalt felt is arranged between the protective cover plate and the waterproof coiled material; wherein the double-layer felt can be padded below the protective cover plate for protecting the waterproof coiled material, and the reinforced concrete walls at two sides of the expansion joint can be freely deformed without being influenced by the bonding of the protective cover plate.
Further preferably, the protective cover plate is a concrete cover plate.
Further optimization, a circular foam rod is fixed in the top of the expansion joint and is filled with the hemp thread asphalt; the top of the expansion joint is fixed by a round foam rod, and the hemp thread asphalt is filled for water prevention.
Further optimization, when the reinforced concrete wall is constructed, soft materials are filled between the reinforced concrete walls on the two sides; during construction, gaps among the reinforced concrete walls are filled with soft materials such as foam boards, and the reinforced concrete walls and other materials can be conveniently installed.
Preferably, the soft material is a foam board.
Further optimizing, after the reinforced concrete walls are constructed, coarse sand is poured between the reinforced concrete walls on the two sides; after the concrete walls on the two sides are constructed, the foam boards are drawn out by tools, so that coarse sand is poured, and horizontal earthquake action/wind load/soil pressure and the like are effectively transmitted between the two basements through the coarse sand filled in the expansion joints.
And further optimizing, wherein PVC drain pipes are pre-embedded at the root parts of the reinforced concrete walls above the foundation layer, open ditches are arranged on the outer sides of the reinforced concrete walls of the foundation layer, and the PVC drain pipes are used for draining water into the open ditches.
Further optimizing, the PVC drain pipe is wrapped by non-woven fabrics; in order to avoid having a small amount of water logging to dip into inside the twice expansion joint under the extreme condition, in this scheme, more than the foundation layer, the reinforced concrete wall root is pre-buried has a plurality of PVC pipelines, through the non-woven fabrics parcel to in the open drain of log raft to the basement bottom plate outside with a small amount of immersions.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model provides a basement expansion joint structure, from the angle of structural stress basement is cut into two, foundation bed and roof layer only connect through the stagnant water steel sheet of taking flexible V-arrangement groove, the temperature stress under the effect of greatly reduced concrete contraction, atmospheric temperature difference to can pass through the coarse sand that fills in the expansion joint, the effective transmission transmits horizontal earthquake effect/wind load/soil pressure etc. between two basements, all adopt outside disposable construction, avoid reserving the construction passageway between two reinforced concrete walls, increased the usable floor of basement, reduced the construction degree of difficulty; from the building use angle, whole waterproofing membrane parcel has formed a holistic basement space in the outside, has avoided construction degree of difficulty and the risk of leaking such as the inside construction waterproofing membrane of expansion joint between the reinforced concrete wall.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a top view of an expansion joint in the prior art;
fig. 2 is a top view of another expansion joint manufacturing method in the prior art;
fig. 3 is a top view of an embodiment provided by the present invention;
fig. 4 is a schematic structural diagram of a top plate layer according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a basic layer structure according to an embodiment of the present invention.
Reference numbers and corresponding part names in the figures:
1-expansion joint, 2-water stop steel plate, 3-reinforced concrete wall, 4-waterproof coiled material, 5-protective cover plate, 6-hemp asphalt, 7-coarse sand and 8-PVC drain pipe.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Examples
The embodiment provides a structure of a basement expansion joint 1, as shown in fig. 3-5, comprising a telescopic water stop steel plate 2;
both sides of the expansion joint 1 are reinforced concrete walls 3, each reinforced concrete wall 3 comprises a foundation layer and a top plate layer from bottom to top, and telescopic water stop steel plates 2 are arranged at the expansion joint 1 of each foundation layer and each top plate layer;
Compared with the prior art, because the basement has formed two independent spaces, two side walls that reinforced concrete wall 3 and coarse sand 7 are constituteed must carry out waterproof construction respectively, the width of expansion joint 1 must be enough big, just can make things convenient for constructor to get into, this has just seriously reduced the waterproof reliability of basement, has increased the area waste of basement space, and has improved the problem such as cost of basement greatly, the utility model provides a basement expansion joint 1 structure, in the concrete scheme, expansion joint 1 cuts into a plurality of with the basement, and expansion joint 1 both sides set up reinforced concrete wall 3, and it is two-layer about it is divided into, namely foundation layer and roof plate layer, and the foundation layer is connected through telescopic stagnant water steel sheet 2, and the roof layer is connected through telescopic stagnant water steel sheet 2, thereby makes expansion joint 1 only leave less gap, wherein, the roof plate layer is formed through upturning the concrete wall, namely local secondary construction to connect with stagnant water steel sheet 2 between the concrete wall; the water stop steel plate 2 is the water stop steel plate 2 with the telescopic V-shaped groove, the basement is divided into two parts from the structural stress angle, and the foundation layer and the top plate layer are only connected through the water stop steel plate 2 with the telescopic V-shaped groove, so that the temperature stress under the actions of concrete shrinkage and atmospheric temperature difference is greatly reduced; the bottom of the foundation layer and the top of the top plate layer are both continuously paved with two waterproof coiled materials 4, the upper end of the whole concrete wall is covered by the waterproof coiled materials 4, the gap reserved in the expansion joint 1 is small, and the waterproof coiled materials 4 can cover the upper end of the expansion joint 1, so that the waterproof coiled materials 4 can be laid at one time, the water leakage risk is reduced, namely, from the perspective of building use, the whole waterproof coiled materials 4 are wrapped outside, an integral basement space is formed, and the construction difficulty and the water leakage risk such as the waterproof coiled materials 4 constructed in the expansion joint 1 between the reinforced concrete walls 3 are avoided; and then outdoor backfilling and ground level laying are carried out on the waterproof coiled material 4.
In this embodiment, a protective cover plate 5 is arranged at the top of the expansion joint 1, and the waterproof coiled material 4 of the top plate layer is located between the protective cover plate 5 and the expansion joint 1; for the waterproofing membrane 4 at protection expansion joint 1 top, the utility model discloses in, set up protective cover plate 5 in waterproofing membrane 4 top of 1 top position at expansion joint, protective cover plate 5 is located terrace surface below.
In this embodiment, a double-layer felt is further disposed between the protective cover plate 5 and the waterproof roll 4; wherein the double-layer felt can be cushioned below the protective cover plate 5 and is used for protecting the waterproof coiled material 4, and the reinforced concrete walls 3 at the two sides of the expansion joint 1 can be freely deformed without being influenced by the bonding of the protective cover plate 5.
In this embodiment, the protective cover 5 is a concrete cover.
In this embodiment, a circular foam rod is fixed in the top of the expansion joint 1, and is filled with hemp thread asphalt 6; the top of the expansion joint 1 is fixed by a round foam rod, and the hemp thread asphalt 6 is filled for water prevention.
In this embodiment, when the reinforced concrete wall 3 is constructed, a soft material is filled between the reinforced concrete walls 3 on both sides; during construction, the gaps between the reinforced concrete walls 3 are filled with soft materials such as foam boards, so that the reinforced concrete walls 3 and other materials can be conveniently installed.
In this embodiment, the flexible material is a foam board.
In the embodiment, after the reinforced concrete walls 3 are constructed, coarse sand 7 is poured between the reinforced concrete walls 3 on the two sides; after the concrete walls on the two sides are constructed, the foam boards are fished out by tools, so that coarse sand 7 is poured, and horizontal seismic action/wind load/soil pressure and the like are transmitted between the two basements effectively through the coarse sand 7 filled in the expansion joint 1.
In the embodiment, a PVC drain pipe 8 is embedded at the root of the reinforced concrete wall 3 above the foundation layer, an open trench is formed in the outer side of the reinforced concrete wall 3 of the foundation layer, and the PVC drain pipe 8 is used for draining water into the open trench;
in this embodiment, the PVC drain pipe 8 is wrapped with a non-woven fabric; in order to avoid having a small amount of water logging to go into inside 1 expansion joint of twice under the extreme condition, the utility model discloses in, above the foundation bed, 3 roots of reinforced concrete wall are pre-buried to have a plurality of PVC pipelines, through the non-woven fabrics parcel to in log raft to the open ditch in the basement bottom plate outside a small amount of immersions.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A basement expansion joint structure is characterized by comprising a telescopic water stop steel plate (2);
both sides of the expansion joint (1) are reinforced concrete walls (3), the reinforced concrete walls (3) comprise a foundation layer and a top plate layer from bottom to top, and telescopic water stop steel plates (2) are arranged at the expansion joints (1) of the foundation layer and the top plate layer;
waterproofing membrane (4) have all been laid to the top of basic layer bottom and top sheet layer, waterproofing membrane (4) can seal the top and the bottom of expansion joint (1).
2. The basement expansion joint structure according to claim 1, wherein a protective cover plate (5) is arranged at the top of the expansion joint (1), and the waterproof coiled material (4) of the top plate layer is positioned between the protective cover plate (5) and the expansion joint (1).
3. The basement expansion joint structure of claim 2, wherein a double-layer felt is further arranged between the protective cover plate (5) and the waterproof coiled material (4).
4. The basement expansion joint structure of claim 2, wherein the protective cover plate (5) is a concrete cover plate.
5. The basement expansion joint structure of claim 1, wherein a round foam rod is fixed in the top of the expansion joint (1) and filled with hemp thread asphalt (6).
6. The basement expansion joint structure according to claim 1, wherein when the reinforced concrete walls (3) are constructed, soft materials are filled between the reinforced concrete walls (3) on two sides.
7. The basement expansion joint structure of claim 6, wherein the soft material is a foam board.
8. The expansion joint structure of the basement as claimed in claim 1, wherein after the reinforced concrete walls (3) are constructed, coarse sand (7) is poured between the reinforced concrete walls (3) at two sides.
9. The basement expansion joint structure of claim 1, wherein PVC drain pipes (8) are embedded at the root of the reinforced concrete wall (3) above the foundation layer, an open trench is formed in the outer side of the reinforced concrete wall (3) of the foundation layer, and the PVC drain pipes (8) are used for draining water into the open trench.
10. The expansion joint structure of the basement as claimed in claim 9, wherein the PVC drain pipe (8) is wrapped by non-woven fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222499205.1U CN218204581U (en) | 2022-09-21 | 2022-09-21 | Basement expansion joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222499205.1U CN218204581U (en) | 2022-09-21 | 2022-09-21 | Basement expansion joint structure |
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| Publication Number | Publication Date |
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| CN218204581U true CN218204581U (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222499205.1U Active CN218204581U (en) | 2022-09-21 | 2022-09-21 | Basement expansion joint structure |
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| CN (1) | CN218204581U (en) |
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- 2022-09-21 CN CN202222499205.1U patent/CN218204581U/en active Active
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