CN111424941A - Construction method for high and large vertebral bodies in silo - Google Patents
Construction method for high and large vertebral bodies in silo Download PDFInfo
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- CN111424941A CN111424941A CN202010342980.9A CN202010342980A CN111424941A CN 111424941 A CN111424941 A CN 111424941A CN 202010342980 A CN202010342980 A CN 202010342980A CN 111424941 A CN111424941 A CN 111424941A
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- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
- E04G1/04—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section
- E04G1/06—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section comprising members with rod-like or tubular portions fitting together end to end, with or without separate connecting pieces
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- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/36—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes
- E04G1/362—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes specially adapted for tanks, silos or similar vessels
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- 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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- 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
- E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
- E04G21/08—Internal vibrators, e.g. needle vibrators
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The embodiment of the invention discloses a construction method of a tall and big cone in a silo, which comprises the following steps of: installing a template at the bottom of the vertebral body, and molding the bottom template of the vertebral body at one time; dividing a vertebral body construction joint; constructing a centrum ring beam; binding a steel bar at a first construction section of a vertebral body; installing an inner top support at a first construction section of a vertebral body; installing an upper template in the first construction section; pouring concrete; constructing a second construction section and a third construction section, and specifically repeating the fourth step to the seventh step; the embodiment of the invention ensures the internal and external light of the vertebral body concrete, ensures the safety of constructors, shortens the construction period and reduces the construction cost.
Description
Technical Field
The invention relates to a construction method of a tall and big cone in a silo, belonging to a construction process of a structure.
Background
In a cement plant production line, a raw material silo and a cement silo are not separated, along with more and more high importance of people on environmental protection, a low-capacity cement plant is eliminated, ten thousand-ton-grade high-capacity cement production lines are produced more and more daily, a high-capacity cement production line is bound to be matched with a high silo and a large silo, according to the process requirements, centrums need to be designed inside the raw material silo and the cement silo, and the height of the inner centrums is higher and larger along with the height of the inner centrums;
the construction of the high and large vertebral bodies faces great challenges to engineering technicians in terms of safety management, construction technology difficulty, quality control and progress guarantee.
Disclosure of Invention
In order to reduce the construction difficulty of a tall and big cone in a silo, ensure the construction quality of the cone, ensure the safety of constructors, reduce the construction cost and quickly finish silo engineering, the embodiment of the invention provides a construction method of the tall and big cone in the silo.
To achieve the purpose, the embodiment of the invention provides the following technical scheme:
a construction method of a tall and big cone in a silo comprises the following steps:
the method comprises the following steps: installing a template at the bottom of the vertebral body, and molding the bottom template of the vertebral body at one time;
step two: dividing a vertebral body construction joint;
step three: constructing a centrum ring beam;
step four: binding a steel bar at a first construction section of a vertebral body;
step five: installing an inner top support at a first construction section of a vertebral body;
step six: installing an upper template in the first construction section;
step seven: pouring concrete;
step eight: and constructing a second construction section and a third construction section, and specifically repeating the fourth step to the seventh step.
Further, the step one is as follows:
(1) erecting a bottom supporting scaffold:
(2) building a pedestrian passageway: erecting a personnel up-and-down channel while erecting a supporting scaffold;
(3) installing an arc steel pipe;
(4) installing a 45mm × 90mm batten;
(5) laying a bottom die, wherein an 8mm thin template is adopted for forming the conical bottom die conveniently;
(6) and installing a bolt top support.
Further, in the second step, three construction joints are divided, wherein the first construction joint is arranged at the top of the centrum ring beam by +20.4m, the second construction joint is arranged at the top of the centrum ring beam by +24.55m, and the third construction joint is arranged at the top of +29.6 m; the whole vertebral body is constructed for four times.
Further, in the third step, the installation of the cone bottom die is finished, cone ring beam reinforcing steel bars are bound, and the ring beam concrete pouring can be carried out after the acceptance is qualified.
Further, in the fourth step, after the ring beam concrete pouring is completed for 3 days, the construction joints are chiseled, and after the acceptance is passed, the first construction section steel bars can be bound.
Further, in the fifth step, the inner top support is made of steel bars with the diameter of 20mm, and concrete cushion blocks with the thickness of 50mm × 50mm are arranged at two ends of the inner top support.
Further, in the sixth step, the upper layer template is installed according to the division of the centrum construction joint, the upper layer template adopts an 8mm thin template, and the upper layer template system is installed with the top support through the scaffold steel pipe.
Further, in the seventh step, 2 ground pumps are adopted when the first section of concrete is poured, one ground pump is used, and the other ground pump is standby; concrete enters from a door opening at the bottom of the silo by adopting a steel pipe conveying pipe, a vertical conveying pipe is erected to the top of the cone along an inclined way for passengers to go up and down, the upper straight section adopts the steel pipe conveying pipe, the straight conveying pipe is hung by a tower crane, and a rotatable joint is adopted at the joint of the straight section and the vertical section; the tail part of the conveying pipe is connected to a pouring point by a plastic hose; each construction section is reserved with a tamping drum hole on the template at the upper part of the centrum before pouring, the transverse and vertical spacing of the tamping drum hole is 300mm and is not more than 1500mm, concrete is vibrated by an insertion type vibrating rod, the vibration is completed, and the tamping drum hole is completed by template plugging.
Furthermore, the bottom support frame is made of 48 mm phi 48 × 3.5.5 mm scaffold steel tubes, the distance is 700mm × 700mm, and the step distance is not more than 1700 mm.
Has the advantages that:
the embodiment of the invention ensures the concrete inside and outside of the cone body to construct a tall cone body in a similar silo, ensures the safety of constructors, shortens the construction period and reduces the construction cost.
Drawings
To more clearly illustrate the technical solution of the present invention, the drawings required for the embodiment of the present invention will be briefly described below.
It should be apparent that the drawings in the following description are only drawings of some embodiments of the invention, and that other drawings can be obtained by those skilled in the art without inventive exercise, and the other drawings also belong to the drawings required by the embodiments of the invention.
FIG. 1 is a view of a template support for the bottom of a vertebral body according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a vertebral body construction joint according to an embodiment of the present invention;
FIG. 3 is a schematic view of the installation of a template for the upper portion of a vertebral body according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of a second section of concrete poured into a vertebral body according to an embodiment of the present invention;
FIG. 5 is a schematic view of a first section of a cone being poured with concrete to form a concrete pour point according to an embodiment of the present invention;
FIG. 6 is a schematic view of a drum-ramming hole for casting concrete at a first section of a cone according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions, advantageous effects and significant progress of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings provided in the embodiments of the present invention.
It is to be understood that all of the described embodiments are merely some, and not all, embodiments of the invention; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first", "second", and "third" (if present) and the like in the description and claims of the present invention and the accompanying drawings of the embodiments of the present invention are used only for distinguishing different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
It is to be understood that:
in the description of the embodiments of the present invention, the terms "upper", "lower", "top", "bottom", and other indicative orientations or positions are only used for describing the orientations or positional relationships based on the embodiments of the present invention and are used for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the devices or elements described must have a specific orientation, a specific orientation configuration and operation, and therefore, the present invention should not be construed as being limited thereto.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, movably connected, or integrated; either directly or indirectly through intervening media, intangible signal, or even optical, communication between two elements, or an interaction between two elements, unless expressly limited otherwise.
The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be further noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
The technical means of the present invention will be described in detail below with specific examples.
As shown in the figure, the embodiment of the invention discloses a construction method of a tall and big cone in a silo, which comprises the following steps:
the method comprises the following steps: installing a template at the bottom of the vertebral body, and molding the bottom template of the vertebral body at one time;
step two: dividing a vertebral body construction joint;
step three: constructing a centrum ring beam 8;
step four: binding a steel bar at a first construction section of a vertebral body;
step five: installing an inner top support at a first construction section of a vertebral body;
step six: installing an upper template in the first construction section;
step seven: pouring concrete;
step eight: and constructing a second construction section and a third construction section, and specifically repeating the fourth step to the seventh step.
In one embodiment of the present invention, the first step is as follows:
(1) erecting a bottom supporting scaffold:
(2) building a pedestrian passageway: when the supporting scaffold is erected, an up-and-down passage 3 for personnel is erected;
(3) installing an arc steel pipe 4;
(4) installing a 45mm × 90mm batten;
(5) laying a bottom die 6, and adopting an 8mm thin template for forming a conical bottom die conveniently;
(6) a bolt top support 7 is mounted.
In one embodiment of the invention, in the second step, three construction joints need to be divided due to the height of the cone (the diameter of the bottom is 24m, the height is 18.06m to 37.74m, and the net height is 19.68 m), wherein the first construction joint is arranged at the top of the ring beam of the cone by +20.4m, the second construction joint is arranged at the top of the ring beam of the cone by +24.55m, and the third construction joint is arranged at the top of the ring beam by +29.6 m; the whole vertebral body is constructed for four times.
In one embodiment of the invention, in the third step, the installation of the cone bottom die is completed, the cone ring beam reinforcing steel bars are bound, and the ring beam concrete pouring can be carried out after the acceptance is passed.
In one embodiment of the invention, in the fourth step, after the ring beam concrete pouring is completed for 3 days, the construction joints are chiseled, and after the construction joints are qualified, the steel bars in the first construction section can be bound, the steel bars are fed strictly according to the drawing, and the lap joint length and the lap joint position meet the design requirements.
In the fifth step of the invention, the inner top support is made of a steel bar with the diameter of 20mm, and two ends of the inner top support are provided with concrete cushion blocks with the thickness of 50mm × 50 mm.
In an embodiment of the invention, as shown in fig. 3, in step six, the upper layer template is installed according to the division of the vertebral body construction joint, the upper layer template adopts an 8mm thin template 16, and the upper layer template system is installed through the scaffold steel pipe and the top support. Horizontal rods 10 and vertical rods 11 are arranged between the cylinder wall 9 and the vertebral body annular beam 8 in a crossed mode, 2 parallel inclined rods 12 are arranged at the tail end of each horizontal rod 10 and the oblique edge of the vertebral body annular beam 8, the 2 inclined rods 12 are connected through a plurality of uniformly distributed horizontal arc steel pipes 13, and the inclined rod 12 closest to the oblique edge of the vertebral body annular beam 8 is connected through a top support 14 perpendicular to the inclined rods 12. The bottom of the diagonal member is fixed by bolts 15.
In one embodiment of the invention, in the seventh step, 2 ground pumps are adopted when the first section of concrete is poured, one is used, and the other is standby; concrete enters from a door opening at the bottom of the silo by adopting a steel pipe conveying pipe, a vertical conveying pipe is erected to the top of the cone along an inclined way for passengers to go up and down, the upper straight section adopts the steel pipe conveying pipe, the straight conveying pipe is hung by a tower crane, and a rotatable joint is adopted at the joint of the straight section and the vertical section; the tail part of the conveying pipe is connected to a pouring point by a plastic hose; each construction section is reserved with a tamping drum hole on the template at the upper part of the centrum before pouring, the transverse and vertical spacing of the tamping drum hole is 300mm and is not more than 1500mm, concrete is vibrated by an insertion type vibrating rod, the vibration is completed, and the tamping drum hole is completed by template plugging.
In one embodiment of the invention, the bottom support frame is calculated by adopting phi 48 × 3.5.5 mm scaffold steel tubes 1, the distance between the bottom support frame and the scaffold steel tubes is 700mm × 700mm, the step pitch is not more than 1700mm, and if the distance between the horizontal steel tubes 2 is less than 1700 mm.
The silo of the raw material warehouse and the silo of the cement warehouse of the sand YAMAMA cement plant are constructed according to the embodiment of the invention, and the successful application is realized, and the construction of the tall and big cone in 8 silos is completed with high quality, rapidness and safety.
During the description of the above description:
the description of the terms "this embodiment," "an embodiment of the invention," "as shown at … …," "further improved technical solution," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention; in this specification, the schematic representations of the terms used above are not necessarily for the same embodiment or example, and the particular features, structures, materials, or characteristics described, etc., may be combined or brought together in any suitable manner in any one or more embodiments or examples; furthermore, those of ordinary skill in the art may combine or combine features of different embodiments or examples and features of different embodiments or examples described in this specification without undue conflict.
Finally, it should be noted that:
the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same;
although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the embodiments of the present invention.
Claims (9)
1. A construction method for a tall and big cone in a silo is characterized by comprising the following steps of:
the method comprises the following steps: installing a template at the bottom of the vertebral body, and molding the bottom template of the vertebral body at one time;
step two: dividing a vertebral body construction joint;
step three: constructing a centrum ring beam;
step four: binding a steel bar at a first construction section of a vertebral body;
step five: installing an inner top support at a first construction section of a vertebral body;
step six: installing an upper template in the first construction section;
step seven: pouring concrete;
step eight: and constructing a second construction section and a third construction section, and specifically repeating the fourth step to the seventh step.
2. The method for constructing a tall and big cone in a silo according to claim 1, wherein the method comprises the following steps: the first step is as follows:
(1) erecting a bottom supporting scaffold:
(2) building a pedestrian passageway: erecting a personnel up-and-down channel while erecting a supporting scaffold;
(3) installing an arc steel pipe;
(4) installing a 45mm × 90mm batten;
(5) laying a bottom die, wherein an 8mm thin template is adopted for forming the conical bottom die conveniently;
(6) and installing a bolt top support.
3. The method for constructing a tall and big cone in a silo according to claim 1, wherein the method comprises the following steps: in the second step, three construction joints are divided, wherein the first construction joint is arranged at the top of the centrum ring beam by +20.4m, the second construction joint is arranged at +24.55m, and the third construction joint is arranged at +29.6 m; the whole vertebral body is constructed for four times.
4. The method for constructing a tall and big cone in a silo according to claim 1, wherein the method comprises the following steps: and in the third step, the installation of the cone bottom die is finished, the cone ring beam reinforcing steel bars are bound, and the ring beam concrete pouring can be carried out after the acceptance is qualified.
5. The method for constructing a tall and big cone in a silo according to claim 1, wherein the method comprises the following steps: and in the fourth step, after the ring beam concrete pouring is finished for 3 days, chiseling the construction joints, and binding the steel bars of the first construction section after acceptance.
6. The construction method of a tall and big cone in a silo as claimed in claim 1, wherein in the fifth step, the inner top support is made of a steel bar with a diameter of 20mm, and concrete pads with a diameter of 50mm × 50mm are arranged at two ends of the inner top support.
7. The method for constructing a tall and big cone in a silo according to claim 1, wherein the method comprises the following steps: and in the sixth step, the upper-layer template is installed according to the division of the centrum construction joints, the upper-layer template adopts an 8mm thin template, and the upper-layer template system is installed with the top support through the scaffold steel pipe.
8. The method for constructing a tall and big cone in a silo according to claim 1, wherein the method comprises the following steps: in the seventh step, 2 land pumps are adopted when the first section of concrete is poured, one land pump is used, and the other land pump is standby; concrete enters from a door opening at the bottom of the silo by adopting a steel pipe conveying pipe, a vertical conveying pipe is erected to the top of the cone along an inclined way for passengers to go up and down, the upper straight section adopts the steel pipe conveying pipe, the straight conveying pipe is hung by a tower crane, and a rotatable joint is adopted at the joint of the straight section and the vertical section; the tail part of the conveying pipe is connected to a pouring point by a plastic hose; each construction section is reserved with a tamping drum hole on the template at the upper part of the centrum before pouring, the transverse and vertical spacing of the tamping drum hole is 300mm and is not more than 1500mm, concrete is vibrated by an insertion type vibrating rod, the vibration is completed, and the tamping drum hole is completed by template plugging.
9. The method for constructing a tall and big vertebral body in a silo as claimed in claim 2, wherein the bottom supporting frame is made of 48 × 3.5.5 mm diameter scaffold steel pipes with a spacing of 700mm × 700mm and a step pitch of not more than 1700 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010342980.9A CN111424941A (en) | 2020-04-27 | 2020-04-27 | Construction method for high and large vertebral bodies in silo |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010342980.9A CN111424941A (en) | 2020-04-27 | 2020-04-27 | Construction method for high and large vertebral bodies in silo |
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| CN111424941A true CN111424941A (en) | 2020-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152868A (en) * | 2021-05-10 | 2021-07-23 | 攀钢集团工程技术有限公司 | Construction method of large-section reducing ore bin formwork support |
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| KR101054906B1 (en) * | 2010-12-30 | 2011-08-05 | 성 환 최 | Silo construction method using slip form |
| CN102383628A (en) * | 2011-08-31 | 2012-03-21 | 中国建筑第二工程局有限公司 | Construction device and construction method for post-construction decompression cone of silo structure |
| US20140305070A1 (en) * | 2012-06-11 | 2014-10-16 | Zhejiang Construction Engineering Group Co., Ltd. | Constructing method for concrete cylinder of construction steel bar of high-rise steel structure |
| CN108035594A (en) * | 2017-12-11 | 2018-05-15 | 中材建设有限公司 | The prefabricated decompression cone construction method of concrete silo structure |
| CN108590299A (en) * | 2018-05-16 | 2018-09-28 | 五冶集团上海有限公司 | Reinforced concrete silo centrum is without split bolt template system |
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2020
- 2020-04-27 CN CN202010342980.9A patent/CN111424941A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126279A (en) * | 2007-07-31 | 2008-02-20 | 中国建筑第七工程局 | Silo slipform construction technique |
| KR101054906B1 (en) * | 2010-12-30 | 2011-08-05 | 성 환 최 | Silo construction method using slip form |
| CN102383628A (en) * | 2011-08-31 | 2012-03-21 | 中国建筑第二工程局有限公司 | Construction device and construction method for post-construction decompression cone of silo structure |
| US20140305070A1 (en) * | 2012-06-11 | 2014-10-16 | Zhejiang Construction Engineering Group Co., Ltd. | Constructing method for concrete cylinder of construction steel bar of high-rise steel structure |
| CN108035594A (en) * | 2017-12-11 | 2018-05-15 | 中材建设有限公司 | The prefabricated decompression cone construction method of concrete silo structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113152868A (en) * | 2021-05-10 | 2021-07-23 | 攀钢集团工程技术有限公司 | Construction method of large-section reducing ore bin formwork support |
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