CN114215229A - Construction method of super-thick wall - Google Patents
Construction method of super-thick wall Download PDFInfo
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- CN114215229A CN114215229A CN202111624804.5A CN202111624804A CN114215229A CN 114215229 A CN114215229 A CN 114215229A CN 202111624804 A CN202111624804 A CN 202111624804A CN 114215229 A CN114215229 A CN 114215229A
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- Prior art keywords
- reinforced concrete
- wall
- wall body
- walls
- concrete wall
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 81
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 14
- 238000012423 maintenance Methods 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 claims description 43
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 5
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001959 radiotherapy Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
- E04C5/04—Mats
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a construction method of an ultra-thick wall. The method comprises the following steps: the method comprises the following steps of determining the positions of a plurality of reinforced concrete walls in advance according to the thickness of the super-thick wall to be built; respectively forming each reinforced concrete wall body at each predetermined position; carrying out initial maintenance on each reinforced concrete wall body so that the strength of each reinforced concrete wall body reaches the design requirement; and filling fillers meeting the preset density requirement between every two adjacent reinforced concrete walls to form a plurality of filled walls. The invention can solve the design and construction problems of the ultra-thick wall in the prior art.
Description
Technical Field
The application relates to the technical field of civil construction, in particular to a construction method of an ultra-thick wall.
Background
In practical application scenarios, it is often necessary to build ultra-thick walls with large thicknesses. For example, in some hospitals with special needs (such as proton hospitals, heavy ion hospitals, etc.), equipment rooms and treatment rooms for radiotherapy need to meet the radiation protection requirements, so the concrete wall of the room must be an ultra-thick wall, the thickness of the wall can reach 1000-4300 mm (mm), and no through cracks can be generated. Therefore, in the prior art, the design and construction difficulties of the super-thick wall body are as follows: how to avoid the cracks generated by the factors such as hydration heat and the like in the construction process of the large-volume concrete through reasonable design, especially to avoid the occurrence of through cracks.
Although some methods for constructing super-thick walls have been proposed in the prior art, the following problems or problems still exist in the prior art:
1. because the thickness of super thick wall is great, when carrying out the construction, in order to solve the adverse effect that the temperature stress produced in the work progress, need set up multirow reinforcing bar (generally the situation is three ~ four rows at least) in super thick wall usually, the reinforcing bar diameter is great, and the radical is more, consequently will lead to the wall cost higher, and concrete vibrates and appears the difficulty.
2. Because the thickness of the super-thick wall body is too large, layered pouring is needed in the pouring process. In order to ensure the pouring quality, multiple times of vibration are needed, so that the construction period of the whole construction is long, a through crack is easily formed at a layering position, and the requirements on concrete proportioning and construction quality are high.
3. Because the thickness of super thick wall body is too big, at concrete formwork in-process, the template will bear great lateral pressure, and the bearing capacity of template needs to be far more than ordinary concrete wall body, causes the waste of template, and the split bolt in the wall body will receive great concrete bond strength, consequently is difficult to demolish.
In conclusion, the construction method of the ultra-thick wall in the prior art has the defects of high construction cost, difficult control of construction quality, long construction period and the like. Therefore, how to provide a better construction method for an ultra-thick wall is a problem to be solved urgently in the field.
Disclosure of Invention
In view of the above, the invention provides a construction method of an ultra-thick wall, so that the design and construction problems of the ultra-thick wall in the prior art can be solved.
The technical scheme of the invention is realized as follows:
a construction method of an ultra-thick wall body comprises the following steps:
the method comprises the following steps of determining the positions of a plurality of reinforced concrete walls in advance according to the thickness of the super-thick wall to be built;
respectively forming each reinforced concrete wall body at each predetermined position;
carrying out initial maintenance on each reinforced concrete wall body so that the strength of each reinforced concrete wall body reaches the design requirement;
and filling fillers meeting the preset density requirement between every two adjacent reinforced concrete walls to form a plurality of filled walls.
Preferably, the multiple pieces of reinforced concrete walls are arranged in parallel along the thickness direction of the super-thick wall;
each reinforced concrete wall has a preset first thickness, and a preset first distance is reserved between every two adjacent reinforced concrete walls.
Preferably, the first thickness is not greater than 400 mm;
the first distance is 800-1200 mm.
Preferably, a reinforced concrete wall is formed by the following steps:
binding reinforced concrete wall body reinforcing steel bars in a split mode in sequence and supporting a template;
concrete is poured into the reinforced concrete wall body with a first preset thickness.
Preferably, the reinforced concrete wall body is in a steel plate shear wall form.
Preferably, the strength grade of the reinforced concrete wall is C30.
Preferably, the filler is plain concrete, steel slag concrete and/or iron ore concrete.
Preferably, when the filler is plain concrete, the mold-entering temperature is controlled and the plain concrete is vibrated to be compact when the plain concrete is poured, so that the plain concrete wall is formed.
Preferably, the strength grade of the plain concrete wall is C15-C20.
Preferably, a steel plate or cast steel is arranged between two adjacent reinforced concrete walls.
As can be seen from the above, in the construction method of the super-thick wall according to the present invention, each reinforced concrete wall is formed at each predetermined position according to the thickness of the super-thick wall to be constructed, and then the corresponding filler (for example, plain concrete) is filled between every two adjacent reinforced concrete walls to form a plurality of filled walls (for example, plain concrete walls), and finally the required super-thick wall is formed. Because the super-thick wall body in the application is formed by alternately arranging a plurality of reinforced concrete wall bodies and filling materials (namely a plurality of filling wall bodies) and each wall body is poured in a slicing mode, the generation of through cracks can be effectively prevented, and the radiation protection function requirement of the super-thick wall body can be further met. In addition, because the thickness of each reinforced concrete wall is not more than the preset thickness (for example, 400mm), only two rows of steel bars need to be arranged in each reinforced concrete wall, the density of the steel bars in the wall is lower, the vibration difficulty is reduced, the workload can be greatly saved, and the quality of the wall is improved. In addition, because the thickness of each reinforced concrete wall is small, the lateral pressure borne by the template is small, and the bond stress borne by the split bolts is small, the split reinforcing steel bars are easy to disassemble when the template is disassembled. When the strength of each reinforced concrete wall body reaches a certain requirement, the reinforced concrete wall body can be used as a template for pouring the middle filling material.
Drawings
Fig. 1 is a flowchart of a construction method of an ultra-thick wall in an embodiment of the present invention.
Fig. 2 is a schematic top view of an ultra-thick wall to be built according to an embodiment of the present invention.
Fig. 3 is a schematic top view of a reinforced concrete wall body after reinforcing steel bars are bound and a formwork is erected in the embodiment of the invention.
Fig. 4 is a schematic top view of the reinforced concrete wall body after concrete is poured in the embodiment of the invention.
Fig. 5 is a schematic top view of a reinforced concrete wall and a infill wall in an embodiment of the invention.
Detailed Description
In order to make the technical scheme and advantages of the invention more apparent, the invention is further described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a flowchart of a construction method of an ultra-thick wall in an embodiment of the present invention.
As shown in fig. 1, the construction method of the ultra-thick wall in the embodiment of the present invention includes the following steps:
In the technical scheme of the application, the ultra-thick wall to be built is generally thicker (for example, 1000-4300 mm), as shown in fig. 1. Therefore, the thickness of the ultra-thick wall 10 to be built can be determined, then the number of reinforced concrete walls to be arranged can be determined according to the thickness, and the specific position of each reinforced concrete wall can be determined.
For example, in a preferred embodiment of the present invention, the plurality of reinforced concrete walls are arranged in parallel along the thickness direction of the super-thick wall; each reinforced concrete wall has a preset first thickness, and a preset first distance is reserved between every two adjacent reinforced concrete walls.
In the technical solution of the present application, the first thickness and the first distance may be predetermined according to the requirements of an actual application scenario.
For example, in a preferred embodiment of the present invention, the first thickness is not greater than 400mm (e.g., may be 200-400 mm). Of course, the first thickness may be set to other suitable values according to the requirements of the practical application, and will not be described herein again.
For example, in a preferred embodiment of the present invention, the first distance may be 800-1200 mm (for example, may be 1000 mm). Of course, the first distance may also be set to other suitable values according to the needs of the practical application, and will not be described herein again.
And 102, forming each reinforced concrete wall body at each predetermined position.
After the positions of the multiple reinforced concrete walls are determined in step 101, the positions can be poured respectively to form the corresponding multiple reinforced concrete walls.
For example, in a preferred embodiment of the present invention, a reinforced concrete wall may be formed by:
step 201, binding reinforced concrete wall body steel bars in a piece-by-piece mode and supporting a template, as shown in fig. 3.
For example, in a preferred embodiment of the present invention, since the wall of the reinforced concrete wall 11 is thin, a common supporting method may be adopted.
Step 202, pouring a reinforced concrete wall with a preset first thickness by using concrete.
For example, in a preferred embodiment of the present invention, the reinforced concrete wall may be in the form of a steel plate shear wall, or may take other suitable forms.
Through the above steps, a plurality of reinforced concrete walls 11 having a desired thickness and spaced apart from each other by a predetermined distance may be formed, as shown in fig. 4.
And 103, carrying out initial maintenance on each reinforced concrete wall body, so that the strength of each reinforced concrete wall body reaches the design requirement.
After the plurality of reinforced concrete walls are formed, the reinforced concrete walls are required to be initially cured, and the strength of each cured reinforced concrete wall meets the design requirement.
For example, in a preferred embodiment of the present invention, the strength grade of the reinforced concrete wall may be C30.
And 104, filling fillers meeting the preset density requirement between every two adjacent reinforced concrete walls to form a plurality of filled walls.
After the strength of each reinforced concrete wall body after curing meets the design requirements, the template and the counter-pulling steel bars (or counter-pulling bolts and the like) of each reinforced concrete wall body can be removed, and then fillers meeting preset conditions are filled between any two adjacent reinforced concrete wall bodies 11, so that a plurality of filled wall bodies 12 are formed, as shown in fig. 5.
In the technical scheme of the application, the appropriate filler can be selected according to the requirements of the actual application scene.
For example, in a preferred embodiment of the present invention, the filler may be: plain concrete, steel slag concrete and/or iron ore concrete. In addition, in order to meet the functional requirements of radiation protection and the like, steel plates, cast steel or other suitable materials can be arranged between the two adjacent reinforced concrete walls 11 according to the requirements.
In addition, in the technical scheme of this application, when the filler is plain concrete, when pouring plain concrete, need strict control to go into the mould temperature and closely knit plain concrete vibration to form plain concrete wall.
In the technical scheme of this application, when pouring plain concrete, can not join in marriage the reinforcing bar, can adopt the plain concrete of low strength to pour and take shape, can avoid appearing the crack in the wall body effectively.
For example, in a preferred embodiment of the present invention, the strength grade of the plain concrete wall may be C15-C20.
Through the steps 101-104, a plurality of reinforced concrete walls and a plurality of filled walls (for example, plain concrete walls) can be formed respectively, and the plurality of reinforced concrete walls and the plurality of filled walls are arranged alternately, so that the whole super-thick wall is formed.
In summary, according to the technical solution of the present invention, each reinforced concrete wall is formed at each predetermined position according to the thickness of the super-thick wall to be built, and then a corresponding filler (for example, plain concrete is poured) is filled between every two adjacent reinforced concrete walls to form a plurality of filled walls (for example, plain concrete walls), and finally the required super-thick wall is formed. Because the super-thick wall body in this application comprises the mutual alternate interval of multiple sheets of reinforced concrete wall bodies and multiple sheets of filling wall bodies, and each wall body is also poured in a slicing manner, the production of through cracks can be effectively prevented, and the radiation protection functional requirement of the super-thick wall body is further realized. In addition, because the thickness of each reinforced concrete wall is not more than the preset thickness (for example, 400mm), only two rows of steel bars need to be arranged in each reinforced concrete wall, the density of the steel bars in the wall is lower, the vibration difficulty is reduced, the workload can be greatly saved, and the quality of the wall is improved. In addition, because the thickness of each reinforced concrete wall is small, the lateral pressure borne by the template is small, and the bond stress borne by the split bolts is small, the split reinforcing steel bars are easy to disassemble when the template is disassembled. When the strength of each reinforced concrete wall body reaches a certain requirement, the reinforced concrete wall body can be used as a template for pouring the middle filling material. In addition, because the thickness of each reinforced concrete wall is smaller, the corresponding hydration heat is also smaller, and cracks generated by temperature and concrete shrinkage are not easy to occur in the construction process.
Therefore, by using the method, the method of breaking the whole into parts can be adopted, the design and construction problems of the ultra-thick wall in the prior art are solved, and the construction period and the construction cost can be greatly saved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The construction method of the super-thick wall body is characterized by comprising the following steps:
the method comprises the following steps of determining the positions of a plurality of reinforced concrete walls in advance according to the thickness of the super-thick wall to be built;
respectively forming each reinforced concrete wall body at each predetermined position;
carrying out initial maintenance on each reinforced concrete wall body so that the strength of each reinforced concrete wall body reaches the design requirement;
and filling fillers meeting the preset density requirement between every two adjacent reinforced concrete walls to form a plurality of filled walls.
2. The method of claim 1, wherein:
the multiple pieces of reinforced concrete walls are arranged in parallel along the thickness direction of the super-thick wall;
each reinforced concrete wall has a preset first thickness, and a preset first distance is reserved between every two adjacent reinforced concrete walls.
3. The method of claim 2, wherein:
the first thickness is no greater than 400 millimeters;
the first distance is 800-1200 mm.
4. The method of claim 1, wherein a sheet of reinforced concrete wall is formed by the steps of:
binding reinforced concrete wall body reinforcing steel bars in a split mode in sequence and supporting a template;
concrete is poured into the reinforced concrete wall body with a first preset thickness.
5. The method of claim 4, wherein:
the reinforced concrete wall body adopts a steel plate shear wall form.
6. The method of claim 4, wherein:
the strength grade of the reinforced concrete wall is C30.
7. The method of claim 1, wherein:
the filler is plain concrete, steel slag concrete and/or iron ore concrete.
8. The method of claim 7, wherein:
when the filler is plain concrete, controlling the mold-entering temperature and vibrating the plain concrete to be compact when the plain concrete is poured, thereby forming the plain concrete wall.
9. The method of claim 8, wherein:
the strength grade of the plain concrete wall is C15-C20.
10. The method of claim 1, wherein:
and a steel plate or cast steel is arranged between two adjacent reinforced concrete walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111624804.5A CN114215229A (en) | 2021-12-28 | 2021-12-28 | Construction method of super-thick wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111624804.5A CN114215229A (en) | 2021-12-28 | 2021-12-28 | Construction method of super-thick wall |
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| Publication Number | Publication Date |
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| CN114215229A true CN114215229A (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111624804.5A Pending CN114215229A (en) | 2021-12-28 | 2021-12-28 | Construction method of super-thick wall |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561551A (en) * | 2012-01-10 | 2012-07-11 | 湖南大学 | Thick wall and construction method thereof |
| US20130025966A1 (en) * | 2010-04-12 | 2013-01-31 | Lg Hausys, Ltd. | Assembly wall body having improved sound absorbing and screening performance and a assembly structure comprising the same |
| CN111456291A (en) * | 2020-05-20 | 2020-07-28 | 重庆渝建实业集团股份有限公司 | Steel plate concrete combined shear wall and connecting structure and construction method thereof |
-
2021
- 2021-12-28 CN CN202111624804.5A patent/CN114215229A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130025966A1 (en) * | 2010-04-12 | 2013-01-31 | Lg Hausys, Ltd. | Assembly wall body having improved sound absorbing and screening performance and a assembly structure comprising the same |
| CN102561551A (en) * | 2012-01-10 | 2012-07-11 | 湖南大学 | Thick wall and construction method thereof |
| CN111456291A (en) * | 2020-05-20 | 2020-07-28 | 重庆渝建实业集团股份有限公司 | Steel plate concrete combined shear wall and connecting structure and construction method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 姚激: "《质子治疗中心工程策划、设计与施工管理》", 同济大学出版社, pages: 345 - 346 * |
| 钱阳;: "现浇商品砼楼板裂缝控制措施及治理", no. 12, pages 46 * |
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