CN207122009U - Precast stair and cast-in-situ wall system attachment structure - Google Patents
Precast stair and cast-in-situ wall system attachment structure Download PDFInfo
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- CN207122009U CN207122009U CN201720845217.1U CN201720845217U CN207122009U CN 207122009 U CN207122009 U CN 207122009U CN 201720845217 U CN201720845217 U CN 201720845217U CN 207122009 U CN207122009 U CN 207122009U
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- stair
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- cement mortar
- situ wall
- attachment structure
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Abstract
The utility model discloses a kind of precast stair and cast-in-situ wall system attachment structure, it is desirable to provide a kind of Stability Analysis of Structures, the precast stair of compatibility and cast-in-situ wall system attachment structure.The utility model includes precast stair（1）And cast-in-situ wall（2）, the precast stair（1）Sidepiece and the cast-in-situ wall（2）Between be provided with stair installation gap（3）, the stair installation gap（3）Lower mouth on be provided with PE rods（4）, the stair installation gap（3）Inside it is provided with internal layer cement mortar（5）, the stair installation gap（3）Suitable for reading be provided with closing in cement mortar（6）, the closing in cement mortar（6）Inside it is mixed with swelling agent.The utility model is applied to precast stair and the technical field of cast-in-situ wall system attachment structure.
Description
Technical field
The present invention relates to a kind of attachment structure, more particularly to a kind of precast stair and cast-in-situ wall system attachment structure.
Background technology
The construction gap way between precast stair and cast-in-place side wall has at present：(1) it is pre- between precast stair and cast-in-place side wall
20mm gaps are stayed, for adjusting stair installation, the secondary construction closure in the gap, using cement mortar stuff up a crack, surface is using weather-proof
Glue closes up；(2) cement mortar stuff up a crack is directly used.Using cement mortar stuff up a crack, because the temperature sensitive property of unlike material is different, hold
It is also easy to produce crack to close up using weather-resistant glue surface, solves problem of Cracking, but weather-resistant glue and the poor compatibility of ornament materials,
Such as floor paint way, weather-resistant glue is incompatible with floor paint, influences perception.
The content of the invention
The technical problems to be solved by the invention are overcome the deficiencies in the prior art, there is provided a kind of Stability Analysis of Structures, compatible
Property precast stair and cast-in-situ wall system attachment structure.
The technical solution adopted in the present invention is：The present invention includes precast stair and cast-in-situ wall, the precast stair side
Stair installation gap is provided between portion and the cast-in-situ wall, PE rods are provided with the lower mouth in the stair installation gap, it is described
Internal layer cement mortar is provided with stair installation gap, stair installation the suitable for reading of gap is provided with closing in cement mortar, institute
State in closing in cement mortar and be mixed with swelling agent.
Further, the internal layer cement mortar is M5 cement mortar.
Further, the closing in cement mortar is M15 micro-expansion cement mortars.
Further, the PE rods are polyethylene rod.The M15 micro-expansion cement mortars are mixed with 10% swelling agent.
Further, the upper and lower opening in the stair installation gap closes up by the M15 micro-expansion cement mortars.
Further, the precast stair sidepiece is provided with the first infiltration hole, and the second infiltration hole is set on the cast-in-situ wall, described
Stair installation gap described in first infiltration hole, the second infiltration Kong Junyu is connected, during construction, the internal layer cement mortar and
The closing in cement mortar penetrates into described first and penetrates into hole and the second infiltration hole.
Further, the upper and lower in the stair installation gap is respectively arranged with infrared heater, described exothermal infrared
Device gives off heat, and the internal layer cement mortar and the closing in cement mortar accelerate solidification.
The beneficial effects of the invention are as follows：Because the present invention includes precast stair and cast-in-situ wall, the precast stair sidepiece
Stair installation gap is provided between the cast-in-situ wall, PE rods, the building are provided with the lower mouth in the stair installation gap
Ladder installation is provided with internal layer cement mortar in gap, and the suitable for reading of the stair installation gap is provided with closing in cement mortar, described
Swelling agent is mixed with closing in cement mortar, so, installed for ease of stair, and later stage stuff up a crack is reduced, stair are reduced as far as possible
Gap is installed, it is local to use 15mm, after the completion of stair are installed, lower mouth is blocked with PE rods, then using M5 cement mortar stuff up a crack extremely
Absolute altitude.After mortar reaches intensity, closed up using the M15 micro-expansion cement mortars of 10% swelling agent of incorporation.Upper and lower surface is received
Mouth processing, solves problem of Cracking caused by temperature shrinkage between unlike material, also solves the compatible problem with ornament materials.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is sectional views of the Fig. 1 in a-a directions；
Fig. 3 is enlarged diagrams of the Fig. 2 at A.
Embodiment
As shown in Figure 1 to Figure 3, in the present embodiment, the present invention includes precast stair 1 and cast-in-situ wall 2, the prefabricated building
Stair installation gap 3 is provided between terraced 1 sidepiece and the cast-in-situ wall 2, PE is provided with the lower mouth in the stair installation gap 3
Rod 4, the stair are installed and internal layer cement mortar 5 are provided with gap 3, and stair installation the suitable for reading of gap 3 is provided with closing in
Cement mortar 6, swelling agent is mixed with the closing in cement mortar 6.Installed for ease of stair, and reduce later stage stuff up a crack, to the greatest extent may be used
Stair installation gap can be reduced, is such as schemed, it is local to use 15mm, way：After the completion of stair are installed, lower mouth is blocked with PE rods, then
Using M5 cement mortar stuff up a crack to absolute altitude.After mortar reaches intensity, using the M15 micro-expansion cement sand of 10% swelling agent of incorporation
Slurry is closed up, as shown in figure 3, upper and lower surface does shell nosing treatment, cracking caused by temperature shrinkage is asked between solving unlike material
Topic, also solves the compatible problem with ornament materials.
In the present embodiment, the internal layer cement mortar 5 is M5 cement mortar.
In the present embodiment, the closing in cement mortar 6 is M15 micro-expansion cement mortars.
In the present embodiment, the PE rods 4 are polyethylene rod.The M15 micro-expansion cement mortars are mixed with 10% expansion
Agent.
In the present embodiment, the upper and lower opening in the stair installation gap 3 closes up by the M15 micro-expansion cement mortars.
In the present embodiment, the sidepiece of precast stair 1 is provided with the first infiltration hole 7, and setting second on the cast-in-situ wall 2 oozes
Enter hole 8, the first infiltration hole 7, the second infiltration hole 8 are connected with stair installation gap 3, described during construction
Internal layer cement mortar 5 and the closing in cement mortar 6 penetrate into described first and penetrate into hole 7 and the second infiltration hole 8.
In the present embodiment, the upper and lower in the stair installation gap 3 is respectively arranged with infrared heater, described infrared
Line heating element gives off heat, and the internal layer cement mortar 5 and the closing in cement mortar 6 accelerate solidification.
The present invention's can realize following effect：
First, the present invention solves prefabricated components and the gap at cast-in-place position is handled, and solves problem of Cracking, solves simultaneously
The consistency problem of stuff up a crack material and ornament materials, it ensure that the quality of building；
2nd, the present invention provides truly feasible construction way for industry way, and facility is provided for site operation；
3rd, construction gap way is uneven at present, and model is provided for industry standardization way.
The present invention is applied to precast stair and the technical field of cast-in-situ wall system attachment structure.
Although embodiments of the invention are described with practical solution, the limit to implication of the present invention is not formed
System, for those skilled in the art, all it is according to modification of this specification to its embodiment and with the combination of other schemes
Obviously.
Claims (7)
1. a kind of precast stair and cast-in-situ wall system attachment structure, including precast stair（1）And cast-in-situ wall（2）, it is described pre-
Stair processed（1）Sidepiece and the cast-in-situ wall（2）Between be provided with stair installation gap（3）, it is characterised in that：The stair installation
Gap（3）Lower mouth on be provided with PE rods（4）, the stair installation gap（3）Inside it is provided with internal layer cement mortar（5）, it is described
Stair install gap（3）Suitable for reading be provided with closing in cement mortar（6）, the closing in cement mortar（6）Inside it is mixed with swelling agent.
2. precast stair according to claim 1 and cast-in-situ wall system attachment structure, it is characterised in that：The internal layer water
Cement mortar（5）For M5 cement mortar.
3. precast stair according to claim 1 and cast-in-situ wall system attachment structure, it is characterised in that：The closing in water
Cement mortar（6）For M15 micro-expansion cement mortars.
4. precast stair according to claim 1 and cast-in-situ wall system attachment structure, it is characterised in that：The PE rods
（4）For polyethylene rod.
5. precast stair according to claim 3 and cast-in-situ wall system attachment structure, it is characterised in that：The stair peace
Fill gap（3）Upper and lower opening closed up by the M15 micro-expansion cement mortars.
6. precast stair according to claim 1 and cast-in-situ wall system attachment structure, it is characterised in that：The prefabricated building
Ladder（1）Sidepiece is provided with first and penetrates into hole（7）, the cast-in-situ wall（2）On set the second infiltration hole（8）, described first penetrates into hole
（7）, it is described second penetrate into hole（8）Gap is installed with the stair（3）It is connected, during construction, the internal layer cement mortar（5）
With the closing in cement mortar（6）Penetrate into described first and penetrate into hole（7）Hole is penetrated into described second（8）.
7. precast stair according to claim 6 and cast-in-situ wall system attachment structure, it is characterised in that：The stair peace
Fill gap（3）Upper and lower be respectively arranged with infrared heater, the infrared heater gives off heat, the internal layer cement
Mortar（5）With the closing in cement mortar（6）Accelerate solidification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720845217.1U CN207122009U (en) | 2017-07-13 | 2017-07-13 | Precast stair and cast-in-situ wall system attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720845217.1U CN207122009U (en) | 2017-07-13 | 2017-07-13 | Precast stair and cast-in-situ wall system attachment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207122009U true CN207122009U (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720845217.1U Active CN207122009U (en) | 2017-07-13 | 2017-07-13 | Precast stair and cast-in-situ wall system attachment structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143047A (en) * | 2017-07-13 | 2017-09-08 | 广东建星建造集团有限公司 | Precast stair and cast-in-situ wall system attachment structure |
-
2017
- 2017-07-13 CN CN201720845217.1U patent/CN207122009U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143047A (en) * | 2017-07-13 | 2017-09-08 | 广东建星建造集团有限公司 | Precast stair and cast-in-situ wall system attachment structure |
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