CN111775298A - Method for pouring concrete of prefabricated stand column - Google Patents
Method for pouring concrete of prefabricated stand column Download PDFInfo
- Publication number
- CN111775298A CN111775298A CN202010644229.4A CN202010644229A CN111775298A CN 111775298 A CN111775298 A CN 111775298A CN 202010644229 A CN202010644229 A CN 202010644229A CN 111775298 A CN111775298 A CN 111775298A
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- pouring
- concrete
- reinforcement cage
- guide pipe
- pouring guide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a method for pouring concrete of a prefabricated stand column, which comprises the following steps: arranging a group of pouring guide pipes with different lengths in the vertical column reinforcement cage along the length direction, fixing the upper openings of the pouring guide pipes at the top of the vertical column reinforcement cage, enabling the lower openings of the longest pouring guide pipes in the group to be close to the bottom surface of the vertical column reinforcement cage, and sequentially increasing the distances between the lower openings of the other pouring guide pipes and the bottom surface of the vertical column reinforcement cage; after the fixing of the pouring guide pipes is completed, firstly, the concrete is poured into a mold through the longest pouring guide pipe, along with the increase of the pouring amount of the concrete, the lower opening of the longest pouring guide pipe is buried in the concrete, when the height of the poured concrete is close to the lower opening of the next longest pouring guide pipe, the next longest pouring guide pipe is replaced to continue pouring, the longest pouring guide pipe is dismantled, and the pouring is repeated from long to short according to the length of the pouring guide pipe until the poured concrete is close to the top of the upright column reinforcement cage. The invention effectively reduces the falling height and speed of the concrete and avoids the segregation of the concrete.
Description
Technical Field
The invention relates to the field of prefabricated stand column construction in an assembly type bridge construction technology, in particular to a method for pouring concrete of a prefabricated stand column.
Background
Pier stand prefabricated component when the preparation in the mill, the conventionality adopts the auto pump to carry out concrete placement, because the stand height is higher and the reinforcing bar is arranged more densely, when stand concrete placement, the pump truck pours the hose and is difficult to stretch into the steel reinforcement cage skeleton, can only directly pour at stand capital pump sending concrete, it is higher to have led to the concrete unloading height, the phenomenon of concrete segregation is produced to the concrete high height that falls easily, and can constantly strike stand stirrup and drawknot reinforcing bar at the concrete fall in-process, the possibility of concrete segregation has further aggravated, also caused certain deformation and damage to stirrup and drawknot reinforcing bar, this is unfavorable to the pouring quality of concrete.
Therefore, in order to avoid segregation of concrete and deformation and damage of the reinforcement cage and ensure the pouring quality of the concrete, a method for pouring the upright column concrete is required to be designed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method for pouring precast upright column concrete.
In order to achieve the above object, the present invention provides a method for casting concrete on a prefabricated pillar, comprising:
closing a stand column reinforcement cage and a prefabricated stand column template and fixing the stand column reinforcement cage and the prefabricated stand column template on a pouring pedestal, arranging a group of pouring guide pipes with different lengths in the stand column reinforcement cage along the length direction, fixing the upper openings of the pouring guide pipes at the top of the stand column reinforcement cage, enabling the lower openings of the longest pouring guide pipes in the group to be close to the bottom surface of the stand column reinforcement cage, and sequentially increasing the distances between the lower openings of the rest pouring guide pipes and the bottom surface of the stand column reinforcement cage;
after the fixing of the pouring guide pipes is completed, firstly, the concrete is poured into a mold through the longest pouring guide pipe, the lower opening of the longest pouring guide pipe is embedded into the concrete along with the increase of the pouring amount of the concrete, when the height of the poured concrete is close to the lower opening of the next longest pouring guide pipe, the next longest pouring guide pipe is replaced to continue pouring, the longest pouring guide pipe is dismantled, and the pouring is repeated from long to short according to the length of the pouring guide pipe until the poured concrete is close to the top of the upright post steel reinforcement cage.
Preferably, after the concrete is poured to be close to the top of the column steel reinforcement cage, the concrete is continuously poured through an automobile pump, the concrete is poured to be at the top of the column steel reinforcement cage, and the concrete pouring construction of the whole prefabricated column is completed.
Preferably, the distance between the lower opening of the longest pouring guide pipe and the bottom surface of the upright steel reinforcement cage is 0.8-1.5 m.
Preferably, the number of the pouring conduits in one group is at least 4, and the pouring conduits are arranged in a square array.
Preferably, the set of casting conduits of different lengths, wherein the lengths of the casting conduits decrease equidistantly.
Preferably, a group of pouring guide pipes with different lengths are arranged in the column reinforcement cage along the length direction, wherein the group of pouring guide pipes are arranged in the center position in the column reinforcement cage.
Preferably, the pouring guide pipe is a circular pipe made of PVC.
Preferably, the framework of the upright column reinforcement cage consists of upright column main reinforcements, stirrups and tie reinforcements, wherein the upright column main reinforcements are longitudinally distributed; the stirrups surround the main reinforcements of the upright post, are distributed at intervals along the longitudinal direction of the main reinforcements of the upright post, and are connected with the main reinforcements of the upright post to form a columnar structure; two ends of the tie bar are respectively connected with the upright post main bars with two opposite sides.
Preferably, the bottom of the prefabricated upright column formwork is fixed on the pouring pedestal, and the top of the prefabricated upright column formwork is provided with a construction operation platform.
Preferably, the prefabricated column template is a steel template.
Compared with the prior art, the invention has at least one of the following beneficial effects:
according to the method, the pouring guide pipe is pre-embedded to enable the concrete to slide along the pouring guide pipe arm, so that the falling height and the falling speed of the concrete are effectively reduced, the segregation of the concrete is avoided, the repeated impact of the concrete on the stand column stirrups and the tie bars is also avoided, the reinforcement cage framework is protected, the construction operation is simple and convenient, the structure is simple, and the practical value of the factory prefabrication of the stand column is high.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic plan view of a prefabricated pillar cast conduit arrangement according to a preferred embodiment of the present invention;
FIG. 2 is a schematic elevation view of a prefabricated pillar cast conduit arrangement according to a preferred embodiment of the present invention;
FIG. 3 is a schematic view illustrating the steps of a precast stud concrete pouring method according to a preferred embodiment of the present invention;
FIG. 4 is a schematic view illustrating the steps of a precast stud concrete pouring method according to a preferred embodiment of the present invention;
FIG. 5 is a schematic view illustrating the steps of a precast stud concrete pouring method according to a preferred embodiment of the present invention;
FIG. 6 is a schematic view illustrating the steps of a precast stud concrete pouring method according to a preferred embodiment of the present invention;
FIG. 7 is a schematic view illustrating the steps of a precast stud concrete pouring method according to a preferred embodiment of the present invention;
the scores in the figure are indicated as: the method comprises the following steps of 1, 2, 3, 4, 5, 6, 33 and 44, wherein the first pouring guide pipe is a first pouring guide pipe, the second pouring guide pipe is a second pouring guide pipe, the third pouring guide pipe is a third pouring guide pipe, the fourth pouring guide pipe is a fourth pouring guide pipe, the upright column reinforcement cage is a vertical column reinforcement cage, the prefabricated upright column template is a prefabricated upright column template, the lower opening of the first pouring guide pipe is a lower opening of the second pouring guide pipe, and the lower opening of.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
The embodiment provides a method for pouring concrete of a prefabricated stand column, which comprises the following steps:
the vertical column reinforcement cage 5 and the prefabricated vertical column template 6 are matched and fixed on a pouring pedestal, a group of pouring guide pipes with different lengths are arranged in the vertical column reinforcement cage 5 along the length direction, the lower opening of the longest pouring guide pipe in the group is close to the bottom surface of the vertical column reinforcement cage 5, and the distances between the lower openings of the rest pouring guide pipes and the bottom surface of the vertical column reinforcement cage 5 are sequentially increased. As a preferred mode, pour the pipe and can adopt the light PVC material pipe of making things convenient for manual operation of weight. Preferably, the number of the pouring conduits in one group is at least 4, and the pouring conduits are arranged in a square array. Other quantities of pouring guide pipes can be adopted, and the pouring guide pipes can be specifically adjusted according to the height of the prefabricated stand columns.
Installing and pouring a guide pipe: the pouring guide pipes are arranged in the center position in the upright post reinforcement cage 5, the upper opening of each pouring guide pipe is respectively fixed at the top of the upright post reinforcement cage 5, and the upper opening of each pouring guide pipe is higher than the top of the upright post reinforcement cage 5 by a certain distance when the pouring guide pipes are fixed. And after the pouring guide pipe is installed, anti-falling measures are taken. Referring to fig. 1 and fig. 2, schematic diagrams of installation of casting conduits are shown, and the diagrams include 4 casting conduits (a first casting conduit 1, a second casting conduit 2, a third casting conduit 3, and a fourth casting conduit 4), 4 casting conduits with different lengths, and lengths of the first casting conduit 1, the second casting conduit 2, the third casting conduit 3, and the fourth casting conduit 4 are decreased equidistantly.
After the pouring guide pipes are installed, firstly, the concrete is poured into a mold through the longest pouring guide pipe, the lower opening of the longest pouring guide pipe is embedded into the concrete along with the increase of the pouring amount of the concrete, when the height of the poured concrete is close to the lower opening of the next longest pouring guide pipe, the next longest pouring guide pipe is replaced to continue pouring, the longest pouring guide pipe is dismantled, and the pouring is repeated from long to short according to the length of the pouring guide pipe until the concrete is poured to be close to the top of the upright post reinforcement cage 5.
Above-mentioned embodiment makes the concrete along the pipe arm landing when pouring through arranging the pipe of pouring of many different lengths, has effectively reduced the height and the speed of falling of concrete, has effectively avoided the segregation of concrete, has also avoided the repeated impact to stand stirrup and drawknot reinforcing bar simultaneously, has played the guard action well.
In other preferred embodiments, the concrete is continuously poured by the automobile pump until the concrete is poured to be close to the top of the column reinforcement cage 5, and the concrete is poured to be at the top of the column reinforcement cage 5, so that the concrete pouring construction of the whole prefabricated column is completed.
In other preferred embodiments, the distance between the lower opening of the longest pouring conduit and the bottom surface of the column reinforcement cage 5 is 0.8m-1.5 m.
In other preferred embodiments, the framework of the column reinforcement cage 5 is composed of column main reinforcements, stirrups and tie reinforcements, wherein the column main reinforcements are distributed along the longitudinal direction; the stirrups surround the main reinforcements of the upright posts, are distributed at intervals along the longitudinal direction of the main reinforcements of the upright posts, and are connected with the main reinforcements of the upright posts to form a columnar structure; two ends of the tie bar are respectively connected with the upright post main bars with two opposite sides.
In other preferred embodiments, the bottom of the prefabricated column formwork 6 is fixed on the pouring pedestal, and the top of the prefabricated column formwork is provided with a construction operation platform, so that manual operation is facilitated. The prefabricated upright column template 6 adopts a steel template.
In a specific embodiment, an application example of pouring a 10m high column by using the method for pouring precast column concrete of the above embodiment is provided, and referring to fig. 3 to 7, specific construction steps are as follows:
the method comprises the following steps: referring to fig. 3, after the upright column reinforcement cage 5 is assembled and fixed on the pouring pedestal, pouring guide pipes are installed, a group of four pouring guide pipes with lengths of 9.2, 7.2, 5.2 and 3.2m are respectively installed, and upper openings of the four pouring guide pipes are fixed at the top of the reinforcement cage. Firstly, pouring concrete through the first pouring guide pipe 1(9.2m in length), pouring concrete with the height of 3m above the bottom of the upright column to the lower opening 22 of the second pouring guide pipe, then replacing the second pouring guide pipe 2 for pouring, and dismantling the first pouring guide pipe 1.
Step two: referring to fig. 4, concrete is continuously poured through the second pouring guide pipe 2(7.2m in length), concrete with the height of 2m is poured to the lower opening 33 of the third pouring guide pipe, the third pouring guide pipe 3 is replaced for pouring, and the second pouring guide pipe 2 is detached.
Step three: referring to fig. 5, concrete is continuously poured through the third pouring guide pipe 3 (with the length of 5.2 m), concrete with the height of 2m is poured to the lower opening 44 of the fourth pouring guide pipe, the fourth pouring guide pipe 4 is replaced for pouring, and the third pouring guide pipe 3 is detached.
Step four: referring to fig. 6, concrete is continuously poured through the fourth pouring guide pipe 4 (with the length of 3.2 m), concrete with the height of 2m is poured to a position 1m below the top of the upright, and the fourth pouring guide pipe 4 is detached.
Step five: referring to fig. 7, concrete is directly poured through an automobile pump, and concrete with the height of 1m is poured to the top of the column, so that the concrete pouring construction of the whole prefabricated column is completed.
The casting conduit of the above embodiment employs the following dimensional parameters:
first casting conduit 1: adopt PVC material pipe, diameter 240mm, length 9.2m, the first mouth of pouring the pipe is fixed in 5 tops of stand steel reinforcement cage, and the first mouth 11 of pouring the pipe is apart from the stand bottom 1 m.
And a second pouring guide pipe 2: adopt PVC material pipe, diameter 240mm, length 7.2m, the last mouth of second pipe of pouring is fixed in 5 tops of stand steel reinforcement cage, and the end opening 22 of second pipe of pouring is apart from the stand bottom 3 m.
Third pouring guide pipe 3: adopt PVC material pipe, diameter 240mm, length 5.2m, the last mouth of third pipe of pouring is fixed in 5 tops of stand steel reinforcement cage, and the end opening 33 of third pipe of pouring is apart from the stand bottom 5 m.
Fourth pouring guide pipe 4: adopt PVC material pipe, diameter 240mm, length 3.2m, the last mouth of fourth pouring pipe is fixed in 5 tops of stand steel reinforcement cage, and the end opening 44 of fourth pouring pipe is apart from the stand bottom 7 m.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (10)
1. A method for casting precast upright concrete is characterized by comprising the following steps:
closing a stand column reinforcement cage and a prefabricated stand column template and fixing the stand column reinforcement cage and the prefabricated stand column template on a pouring pedestal, arranging a group of pouring guide pipes with different lengths in the stand column reinforcement cage along the length direction, fixing the upper openings of the pouring guide pipes at the top of the stand column reinforcement cage, enabling the lower openings of the longest pouring guide pipes in the group to be close to the bottom surface of the stand column reinforcement cage, and sequentially increasing the distances between the lower openings of the rest pouring guide pipes and the bottom surface of the stand column reinforcement cage;
after the fixing of the pouring guide pipes is completed, firstly, the concrete is poured into a mold through the longest pouring guide pipe, the lower opening of the longest pouring guide pipe is embedded into the concrete along with the increase of the pouring amount of the concrete, when the height of the poured concrete is close to the lower opening of the next longest pouring guide pipe, the next longest pouring guide pipe is replaced to continue pouring, the longest pouring guide pipe is dismantled, and the pouring is repeated from long to short according to the length of the pouring guide pipe until the poured concrete is close to the top of the upright post steel reinforcement cage.
2. The method for pouring concrete of the prefabricated stand column as claimed in claim 1, wherein the concrete pouring is continued by an automobile pump until the concrete is poured to be close to the top of the stand column reinforcement cage, and the concrete is poured to the top of the stand column reinforcement cage, so that the concrete pouring construction of the whole prefabricated stand column is completed.
3. A method of precast upright concrete pouring according to claim 1, wherein the distance between the lower mouth of the longest pouring guide tube and the bottom surface of the upright reinforcement cage is 0.8m to 1.5 m.
4. The method for pouring concrete for prefabricated columns according to claim 1, wherein a group of pouring ducts is at least 4 in number and arranged in a square array.
5. A method of precast stud concrete pouring according to claim 1, wherein the set of different lengths of pouring conduits, wherein the lengths of the pouring conduits decrease equidistantly.
6. The method of precast column concrete casting according to claim 1, wherein a set of casting pipes of different lengths are arranged in a column reinforcement cage in a length direction, wherein the set of casting pipes is arranged at a central position in the column reinforcement cage.
7. The method for pouring precast concrete for upright columns according to any one of claims 1 to 6, wherein the pouring guide pipe is a circular pipe made of PVC.
8. The method for pouring the precast concrete of the upright post according to any one of claims 1 to 6, wherein the framework of the upright post reinforcement cage is composed of upright post main reinforcements, stirrups and tie reinforcements, wherein the upright post main reinforcements are distributed along the longitudinal direction; the stirrups surround the main reinforcements of the upright post, are distributed at intervals along the longitudinal direction of the main reinforcements of the upright post, and are connected with the main reinforcements of the upright post to form a columnar structure; two ends of the tie bar are respectively connected with the upright post main bars with two opposite sides.
9. The method for pouring the concrete of the prefabricated upright post as claimed in any one of claims 1 to 6, wherein the bottom of the prefabricated upright post formwork is fixed on a pouring pedestal, and the top is provided with a construction operation platform.
10. The method for pouring concrete for prefabricated columns according to any one of claims 1 to 6, wherein the prefabricated column formworks are steel formworks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010644229.4A CN111775298A (en) | 2020-07-07 | 2020-07-07 | Method for pouring concrete of prefabricated stand column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010644229.4A CN111775298A (en) | 2020-07-07 | 2020-07-07 | Method for pouring concrete of prefabricated stand column |
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| CN111775298A true CN111775298A (en) | 2020-10-16 |
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| CN202010644229.4A Pending CN111775298A (en) | 2020-07-07 | 2020-07-07 | Method for pouring concrete of prefabricated stand column |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718098A (en) * | 2009-11-09 | 2010-06-02 | 中国电力科学研究院 | Micro-pile combined dug composite foundation and construction method thereof |
| CN105350777A (en) * | 2015-11-27 | 2016-02-24 | 中国一冶集团有限公司 | Device and method for one-time pouring molding of ultra-high concrete column |
| CN107254882A (en) * | 2017-07-27 | 2017-10-17 | 中国水利水电第八工程局有限公司 | A kind of highly permeable scall Quick leak stoppage apparatus and blocking method |
| CN209194535U (en) * | 2018-08-07 | 2019-08-02 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of roadbed grouting device |
| KR20190136221A (en) * | 2018-05-30 | 2019-12-10 | 박헌 | Grouting apparatus the grouting method thereof |
-
2020
- 2020-07-07 CN CN202010644229.4A patent/CN111775298A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718098A (en) * | 2009-11-09 | 2010-06-02 | 中国电力科学研究院 | Micro-pile combined dug composite foundation and construction method thereof |
| CN105350777A (en) * | 2015-11-27 | 2016-02-24 | 中国一冶集团有限公司 | Device and method for one-time pouring molding of ultra-high concrete column |
| CN107254882A (en) * | 2017-07-27 | 2017-10-17 | 中国水利水电第八工程局有限公司 | A kind of highly permeable scall Quick leak stoppage apparatus and blocking method |
| KR20190136221A (en) * | 2018-05-30 | 2019-12-10 | 박헌 | Grouting apparatus the grouting method thereof |
| CN209194535U (en) * | 2018-08-07 | 2019-08-02 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | A kind of roadbed grouting device |
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Application publication date: 20201016 |