CN109235921B - Construction method for reforming and reinforcing upright post of concrete chimney and application thereof - Google Patents
Construction method for reforming and reinforcing upright post of concrete chimney and application thereof Download PDFInfo
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- CN109235921B CN109235921B CN201811238327.7A CN201811238327A CN109235921B CN 109235921 B CN109235921 B CN 109235921B CN 201811238327 A CN201811238327 A CN 201811238327A CN 109235921 B CN109235921 B CN 109235921B
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- template
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- construction
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- 238000010276 construction Methods 0.000 title claims abstract description 34
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 8
- 238000002407 reforming Methods 0.000 title claims description 9
- 238000009415 formwork Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000002787 reinforcement Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
-
- 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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to the field of civil engineering, in particular to a construction method for a reinforced upright post for concrete chimney reconstruction and application thereof. Each reinforcement upright post consists of an inner upright post and an outer upright post, and each reinforcement upright post uses 2 sets of templates during construction; in the construction process, a first section of template is firstly installed, a second section of template is installed after the first section of upright post is poured, the first section of template is removed and installed on the second section after the second section of upright post is poured, and the construction is repeated until the pouring of the whole reinforcing upright post is completed, and each section of template is movably connected. According to the invention, the weight of poured concrete is borne by the chimney body during the reconstruction construction of the concrete chimney, so that a formwork support system is reduced, the construction of the reinforced upright column is more convenient, and the investment of construction measure cost is reduced.
Description
Technical Field
The invention relates to the field of civil engineering, in particular to a construction method for a reinforced upright post for concrete chimney reconstruction and application thereof.
Background
The concrete chimney built at early stage in China is severely corroded, local bulging, falling and steel bar corrosion occur, the safety performance of the chimney wall and the supporting structure of the chimney wall is greatly reduced, and the working effect of the chimney wall cannot meet the environmental protection requirement. In the prior art, the time and the labor are consumed for removing the chimney and reconstructing, and the cost of manpower and material resources is high, so that the economic cost can be greatly reduced by carrying out reconstruction and reinforcement construction on the chimney, and the existing reconstruction and reinforcement scheme in the prior art has the defects of complex method, high cost, and labor and effort, which are not expected to be seen by the person skilled in the art.
Disclosure of Invention
The technical problem solved by the invention is to provide a construction method for reforming and reinforcing the upright post of the concrete chimney and application thereof, which are used for prolonging the service life of the concrete chimney, reducing the reforming cost and solving the problems of complex and high cost, labor and effort and the like of the reforming construction method in the prior art.
The technical problems solved by the invention are realized by adopting the following technical scheme:
the construction method for reforming the reinforced upright posts of the concrete chimney comprises the steps that each reinforced upright post consists of an inner upright post and an outer upright post, and 2 sets of templates are used for each reinforced upright post during construction;
in the construction process, a first section of template is firstly installed, a second section of template is installed after the first section of upright post is poured, the first section of template is removed and installed on the second section after the second section of upright post is poured, and the construction is repeated until the pouring of the whole reinforcing upright post is completed, and each section of template is movably connected.
Preferably, the templates include a vertical template, a long side template, and a short side template.
Preferably, before the first section stand is pour, at first install the die block, the die block includes two arc steel sheets that connect through a plurality of bolt pair drawing, the bolt runs through the section of thick bamboo wall of concrete chimney, the top of arc steel sheet is provided with the roof, the below of roof is provided with the stud.
More preferably, the stud comprises five stud blocks.
Preferably, the vertical templates are rectangular steel plates, and the upper end and the lower end of each vertical template are welded with an angle steel for butt joint of the upper template and the lower template;
the side face of the vertical formwork, which is attached to the long side formwork, is provided with a plurality of bolt holes.
Preferably, the long side template is a parallelogram steel plate, and the included angle between the vertical edge and the bottom edge of the long side template is determined according to the inclination of the outer wall of the chimney; preferably, the included angle between the vertical edge and the bottom edge is 70-89 ℃.
A plurality of long holes are formed in one side, far away from the chimney wall, of the long side template, the positions of the long holes correspond to the bolt holes of the vertical template one by one, and the long side template and the vertical template are fixedly connected;
a first connecting plate movably connected with the chimney wall is arranged at the joint of the long side template and the chimney wall; the first connecting plate is tightly attached to the chimney wall and fixedly connected with the vertical formwork.
Preferably, at least one fixing strip is arranged on the outer side of the long side template from top to bottom. More preferably, the outer side of the long side template is provided with five fixing strips from top to bottom.
Preferably, the short side template is a parallelogram steel plate, and the included angle between the vertical edge and the bottom edge of the short side template is determined according to the inclination of the outer wall of the chimney;
a plurality of long holes are formed in one side, far away from the chimney wall, of the short side template, the positions of the long holes correspond to the bolt holes of the vertical template one by one, and the short side template and the vertical template are fixedly connected;
a second connecting plate movably connected with the chimney wall is arranged at the joint of the short side template and the chimney wall; the second connecting plate is tightly attached to the chimney wall and fixedly connected with the short side template.
Preferably, lifting lugs are arranged on the upper parts of the vertical templates, the long side templates and the short side templates and used for lifting when the templates are disassembled and assembled.
The second aspect of the invention discloses application of the concrete chimney reconstruction and reinforcement upright post construction method in the field of civil construction.
Compared with the prior art, the invention has the following beneficial effects:
1. the chimney body is utilized to bear the weight of poured concrete during the reconstruction construction of the concrete chimney, so that a formwork support system is reduced, the construction of the reinforced upright column is more convenient, and the investment of construction measure cost is reduced;
2. the casting maintenance time is utilized, so that the template is recycled, and the turnover rate and the utilization rate of the material are greatly improved;
3. and each section of the templates are fixedly connected by bolts, so that the operation of high-altitude operators is facilitated, and the risk of high-altitude operation is reduced.
Drawings
The invention is further illustrated by means of the accompanying drawings, the embodiments in which do not constitute any limitation of the invention.
FIG. 1 is an elevation view of chimney reinforcement in an embodiment of the invention;
FIG. 2 is an enlarged partial view of portion A of FIG. 1;
FIG. 3 is a schematic view of a bottom mold according to an embodiment of the present invention;
FIG. 4 is a front view of a neutral template in an embodiment of the invention;
FIG. 5 is a side view of a neutral template in an embodiment of the invention;
FIG. 6 is a schematic view of a long side form in an embodiment of the invention;
FIG. 7 is a schematic view of a short side form in an embodiment of the invention;
in the figure: the chimney comprises a 1-chimney, a 2-template, a 21-long side template, 211-long holes, a 22-vertical template, 221-flat steel, 222-lifting lugs, 223-fixing strips, 224-bolt holes, 23-short side templates, a 3-chimney cylinder wall, 4-inner stand columns, 5-bolts, 6-arc-shaped steel plates, 7-rib plates, 8-top plates and 9-outer stand columns.
Detailed Description
The invention will be further illustrated with reference to specific examples. It should be understood that these examples are only for the purpose of the present invention and are not intended to limit the scope of the present invention.
In a preferred embodiment of the invention, a construction method for reforming a reinforced upright post of a concrete chimney is disclosed, specifically, wherein each reinforced upright post consists of an inner upright post 4 and an outer upright post 9, and each reinforced upright post uses 2 sets of templates 2 during construction;
in the construction process, a first section of template is firstly installed, a second section of template is installed after the first section of upright post is poured, the first section of template is removed and installed on the second section after the second section of upright post is poured, and the construction is repeated until the pouring of the whole reinforcing upright post is completed, and each section of template is movably connected. An elevation view of the chimney reinforcement is shown in fig. 1, and fig. 2 is an enlarged partial view of section a of fig. 1.
The templates include a vertical template 22, a long side template 21 and a short side template 23.
Before the first section stand is pour, at first install the die block, as shown in fig. 3, the die block includes two arc steel plates 6 that connect through a plurality of bolt 5 pair pull, and bolt 5 runs through the section of thick bamboo wall 3 of concrete chimney, and the top of arc steel plate 6 is provided with roof 8, the below of roof 8 is provided with the stud.
The stud comprises five stud blocks 7.
As shown in fig. 4-5, the vertical formwork 22 is a rectangular steel plate, the upper end and the lower end of the vertical formwork are respectively welded with an angle steel 221 for butt joint of the upper and lower formworks, and the upper part of the vertical formwork is provided with a lifting lug 222 for lifting when the formworks are disassembled;
the side surface of the vertical formwork 22, which is attached to the long side formwork 21, is provided with a plurality of bolt holes.
As shown in fig. 6, the long side template 21 is a parallelogram steel plate, and the included angle between the vertical edge and the bottom edge is determined according to the inclination of the outer wall of the chimney; in the figure, the included angle between the vertical edge and the bottom edge is 88 ℃.
A plurality of long holes 211 are formed in one side, far away from the chimney wall, of the long side template 21, and the positions of the long holes 211 correspond to the bolt holes of the vertical templates 22 one by one and are used for connecting and fixing the long side template and the vertical templates;
a first connecting plate movably connected with the chimney wall is arranged at the joint of the long side template 21 and the chimney wall; the first connection plate is attached to the chimney wall and fixedly connected to the upright form 22.
Five fixing strips 223 are arranged on the outer side of the long side template 21 from top to bottom. The upper part of the long side form 21 is also provided with lifting lugs.
As shown in fig. 7, the short side template 23 is a parallelogram steel plate, and the included angle between the vertical edge and the bottom edge is determined according to the inclination of the outer wall of the chimney; in the figure, the included angle between the vertical edge and the bottom edge is 88 ℃.
A plurality of long holes are formed in one side, far away from the chimney wall, of the short side template 23, and the positions of the long holes are in one-to-one correspondence with the bolt holes of the vertical template and are used for connecting and fixing the short side template and the vertical template;
a second connecting plate movably connected with the chimney wall is arranged at the joint of the short side template 23 and the chimney wall; the second connecting plate is tightly attached to the chimney wall and fixedly connected with the short side template.
The upper portion of short side form board is provided with the lug for hoist and mount usefulness when the template dismouting.
The above description of the specific embodiments of the present invention has been given by way of example only, and the present invention is not limited to the above described specific embodiments. Any equivalent modifications and substitutions for the present invention will occur to those skilled in the art, and are also within the scope of the present invention. Accordingly, equivalent changes and modifications are intended to be included within the scope of the present invention without departing from the spirit and scope thereof.
Claims (10)
1. The construction method for reforming the reinforced upright post of the concrete chimney is characterized in that each reinforced upright post consists of an inner upright post and an outer upright post, and each reinforced upright post uses 2 sets of templates during construction;
in the construction process, a first section of template is firstly installed, a second section of template is installed after the first section of upright post is poured, the first section of template is removed and installed on the second section after the second section of upright post is poured, and the construction is repeated until the pouring of the whole reinforcing upright post is completed, and each section of template is movably connected.
2. The method for constructing a concrete chimney reforming reinforcing column according to claim 1, wherein the formwork comprises a vertical formwork, a long side formwork and a short side formwork.
3. The construction method for the reinforced upright post of the concrete chimney reconstruction according to claim 2, wherein before the first section of upright post is poured, a bottom die is firstly installed, the bottom die comprises two arc-shaped steel plates which are connected in a split mode through a plurality of bolts, the bolts penetrate through the cylinder wall of the concrete chimney, a top plate is arranged above the arc-shaped steel plates, and a stud is arranged below the top plate.
4. The method for constructing a reinforced column for modifying a concrete chimney according to claim 3, wherein the vertical ribs comprise five rib blocks.
5. The construction method for the concrete chimney reconstruction reinforced upright post according to claim 2, wherein the upright templates are rectangular steel plates, and an angle steel is welded at the upper end and the lower end of each upright template for butt joint of the upper template and the lower template;
the side face of the vertical formwork, which is attached to the long side formwork, is provided with a plurality of bolt holes.
6. The method for constructing the reinforced upright post for the modification of the concrete chimney according to claim 2, wherein the long side template is a parallelogram steel plate, and the included angle between the vertical edge and the bottom edge of the long side template is determined according to the inclination of the outer wall of the chimney;
a plurality of long holes are formed in one side, far away from the chimney wall, of the long side template, the positions of the long holes correspond to the bolt holes of the vertical template one by one, and the long side template and the vertical template are fixedly connected;
a first connecting plate movably connected with the chimney wall is arranged at the joint of the long side template and the chimney wall; the first connecting plate is tightly attached to the chimney wall and fixedly connected with the vertical formwork.
7. The method for constructing a reinforced column for modifying a concrete chimney according to claim 6, wherein at least one fixing strip is provided on the outer side of the long side form from top to bottom.
8. The method for constructing the reinforced upright post for the modification of the concrete chimney according to claim 2, wherein the short side template is a parallelogram steel plate, and the included angle between the vertical edge and the bottom edge of the short side template is determined according to the inclination of the outer wall of the chimney;
a plurality of long holes are formed in one side, far away from the chimney wall, of the short side template, the positions of the long holes correspond to the bolt holes of the vertical template one by one, and the short side template and the vertical template are fixedly connected;
a second connecting plate movably connected with the chimney wall is arranged at the joint of the short side template and the chimney wall; the second connecting plate is tightly attached to the chimney wall and fixedly connected with the short side template.
9. The method for constructing the reinforced upright post for the modification of the concrete chimney according to claim 2, wherein lifting lugs are arranged on the upper parts of the upright templates, the long side templates and the short side templates and used for lifting when the templates are disassembled.
10. Use of the concrete chimney reconstruction reinforcement column construction method according to any one of claims 1 to 9 in the field of civil construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811238327.7A CN109235921B (en) | 2018-10-23 | 2018-10-23 | Construction method for reforming and reinforcing upright post of concrete chimney and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811238327.7A CN109235921B (en) | 2018-10-23 | 2018-10-23 | Construction method for reforming and reinforcing upright post of concrete chimney and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109235921A CN109235921A (en) | 2019-01-18 |
| CN109235921B true CN109235921B (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811238327.7A Active CN109235921B (en) | 2018-10-23 | 2018-10-23 | Construction method for reforming and reinforcing upright post of concrete chimney and application thereof |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669900A (en) * | 2013-12-03 | 2014-03-26 | 东北电业管理局烟塔工程公司 | Integral reinforcement construction method for outer barrel wall of chimney |
| CN104265055A (en) * | 2014-09-30 | 2015-01-07 | 中国十七冶集团有限公司 | Chimney construction method |
| CN107435438A (en) * | 2017-08-16 | 2017-12-05 | 黄晖 | A kind of chimney turnover formwork construction device |
| JP2018115489A (en) * | 2017-01-19 | 2018-07-26 | コンドーテック株式会社 | Anchor frame and method of building steel frame structure using the same |
| CN209179537U (en) * | 2018-10-23 | 2019-07-30 | 五冶集团上海有限公司 | A kind of concrete chimney transformation reinforcing column construction formwork |
-
2018
- 2018-10-23 CN CN201811238327.7A patent/CN109235921B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103669900A (en) * | 2013-12-03 | 2014-03-26 | 东北电业管理局烟塔工程公司 | Integral reinforcement construction method for outer barrel wall of chimney |
| CN104265055A (en) * | 2014-09-30 | 2015-01-07 | 中国十七冶集团有限公司 | Chimney construction method |
| JP2018115489A (en) * | 2017-01-19 | 2018-07-26 | コンドーテック株式会社 | Anchor frame and method of building steel frame structure using the same |
| CN107435438A (en) * | 2017-08-16 | 2017-12-05 | 黄晖 | A kind of chimney turnover formwork construction device |
| CN209179537U (en) * | 2018-10-23 | 2019-07-30 | 五冶集团上海有限公司 | A kind of concrete chimney transformation reinforcing column construction formwork |
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| Publication number | Publication date |
|---|---|
| CN109235921A (en) | 2019-01-18 |
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