CN115288193A - Space large-span dome structure construction method based on multilayer operation platform - Google Patents
Space large-span dome structure construction method based on multilayer operation platform Download PDFInfo
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- CN115288193A CN115288193A CN202210945873.4A CN202210945873A CN115288193A CN 115288193 A CN115288193 A CN 115288193A CN 202210945873 A CN202210945873 A CN 202210945873A CN 115288193 A CN115288193 A CN 115288193A
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- layer
- operation platform
- dome structure
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- vertical rods
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- 238000010276 construction Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000002023 wood Substances 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000009435 building construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 241000700608 Sagitta Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
Abstract
The invention relates to the technical field of building construction, and discloses a construction method of a space large-span dome structure based on a multilayer operation platform. The method effectively solves the problem of difficult operation caused by overhigh rise and overlarge span in the construction process of the space long-span dome structure, realizes space three-dimensional interpenetration operation among different construction platforms, ensures the smoothness of construction operation, and improves the construction efficiency and the construction safety.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of a space large-span dome structure based on a multi-layer operation platform.
Background
The dome structure of the underground tank room is complex, and the coating construction has a plurality of difficulties. For example, the section of the tank room is large, secondary lining is carried out on a high side wall, a dome of the tank room is of a flat variable cross-section structure, and construction and linear control difficulties are high; the secondary lining of the dome requires one-step pouring forming, no construction seam is provided, the durability requirement of a concrete structure is high, and the construction quality standard is strict; the sagitta of the tank chamber is high in rise, the supporting and forming of the arched template of the sagitta are difficult, and meanwhile, the template generates large side pressure, so that certain difficulty is brought to the supporting of the inner template; the installation process and the pouring process of the templates in the closed space have great difficulty, and careful design needs to be made on the installation sequence, the concrete pouring sequence, the pouring positions and the like of the supports and the templates.
Therefore, a construction method is needed to solve the problem of difficult operation caused by too high rise and too large span of the spatial long-span dome structure in the construction process.
Disclosure of Invention
In order to solve the technical problems, the invention provides a space large-span dome structure construction method based on a multilayer operation platform, which provides a transportation space and an operation platform for the construction operation of the space large-span dome structure by utilizing the multilayer operation platform, and realizes the space three-dimensional alternate construction operation of the dome structure.
In order to realize the technical purpose, the invention adopts the technical scheme that:
a construction method of a space large-span dome structure based on a multilayer operation platform is characterized in that the multilayer operation platform is a construction operation platform which is built in a partitioning and layering mode on the basis of a side wall support and is in a step shape matched with the space large-span dome structure.
Further, the concrete steps are as follows:
s1, after the side wall is poured, reserving an area in the middle of the top of the side wall support, and paving a wood board in the area of the top of the rest side wall support to serve as a first operation platform;
s2, adding a first layer of lengthened vertical rods upwards in a reserved area in the middle of the top of the side wall support;
s3, reserving a middle area of the top of the first layer of lengthened vertical rods, and paving wood boards in the top area of the remaining first layer of lengthened vertical rods to serve as a second operation platform;
s4, a second layer of lengthened vertical rods are additionally arranged in the middle reserved area of the tops of the first layer of lengthened vertical rods upwards;
s5, reserving a space for installing a supporting framework at the top of the second layer of lengthened vertical rod, and paving a wood board at a position with a certain height away from the top of the second layer of lengthened vertical rod to serve as a third operation platform;
and S6, based on the first, second and third operation platforms, mounting top supports at the tops of the rest side wall supports, the first layer of lengthened vertical rods and the second layer of lengthened vertical rods, and mounting supporting frameworks on the top supports to form the dome template.
Further, in the step S1, a horizontal cross rod is erected 20-25 cm away from the top of the upright rod in the residual area and is used for supporting and paving the wood board of the first operation platform; in the step S3, a horizontal cross rod is erected 20-25 cm away from the top of the rest first layer of lengthened vertical rods and used for supporting and paving the wood board of the second operation platform; in step S5, a horizontal cross rod is erected 20-25 cm away from the top of the second layer of lengthened vertical rod and is used for supporting and paving the wood board of the third working platform.
Further, the supporting framework comprises a main edge and a secondary edge, the main edge is spliced into an arch ring structure, each arch ring is vertically tangent to the spherical shape of the dome, the secondary edge is arranged at the top of the main edge and is arranged in a mode perpendicular to the main edge arch ring structure.
Preferably, the main edge is made of double-U-shaped steel.
Preferably, the secondary ridges are rectangular tubes.
Preferably, the secondary arris is fixed to the primary arris using a tie wrap.
Compared with the prior art, the invention has the following beneficial effects:
the construction method of the invention adds the lengthened vertical rods in layers, and the working platform is erected into a ladder shape, the fitting degree with the space large-span dome structure is higher, compared with the method of erecting in a full space, the method reduces the use of erecting materials and shortens the erecting construction period; the method of the layered operation platform is adopted, the interior of the dome is divided into different construction operation functional areas, and the construction operation functional areas supplement each other, so that the space three-dimensional alternate construction operation of the dome structure is realized, and the streamline degree of the space large-span dome structure construction operation is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a construction flow diagram of the method of the present invention;
FIG. 2 is a schematic view of a first work platform of the present invention;
FIG. 3 is a schematic view of a second work platform in the method of the present invention;
FIG. 4 is a schematic diagram of a third operation platform in the method of the present invention;
FIG. 5 is a top view of a construction zone in the method of the present invention;
FIG. 6 is a schematic diagram of the structure of the support frame in the method of the present invention.
Reference numerals: 1-a first operation platform, 2-a second operation platform, 3-a third operation platform, 4-a main ridge and 5-a secondary ridge.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
The invention relates to a construction method of a space large-span dome structure based on a multilayer operation platform, wherein the multilayer operation platform is a construction operation platform which is built in a partitioned and layered mode on the basis of a side wall bracket and is in a step shape which is matched with the space large-span dome structure; a transportation space and an operation platform are provided for the construction operation of the large-span dome structure in space by utilizing the multilayer operation platform, so that the spatial three-dimensional alternate construction operation of the dome structure is realized; the flow schematic diagram of the construction method is shown in fig. 1, and the concrete steps are as follows:
s1, after the side wall is poured, reserving a rectangular area in the middle of the top of a side wall support, and paving a wood board in the top area of the rest side wall support to serve as a first operation platform; preferably, a space of 20-25 cm is reserved at the top of the rest side wall bracket for mounting a supporting framework at a top support and an arch foot, and a horizontal cross bar is erected 20-25 cm away from the top of the rest side wall bracket for supporting a wood board for laying the first operation platform; the first operation platform is fully paved with wood boards, so that on one hand, the steel bar materials conveyed into the dome from the upper channel can be placed; on the other hand, the steel bar support can prevent the danger caused by the careless stepping on the air in the operation process of constructors, and can be used as an operation platform for subsequently installing steel bars and supporting frameworks.
S2, adding a first layer of lengthened vertical rods upwards in a reserved area in the middle of the top of the side wall support; the first layer of lengthened vertical rods can provide an operation platform for welding steel bars and assembling templates, and can be used as an operation platform for subsequently installing the steel bars and the templates near the arch waist of the dome;
s3, reserving a middle area of the top of the first layer of lengthened vertical rods, and paving wood boards in the top area of the remaining first layer of lengthened vertical rods to serve as a second operation platform; preferably, a space of 20-25 cm is reserved at the top of the rest first layer of lengthened vertical rods for mounting a supporting framework at a jacking position and an arch position, and a horizontal cross rod is erected 20-25 cm away from the top of the rest first layer of lengthened vertical rods for supporting the wood boards for laying the second operation platform; the middle area of the top of the reserved first layer of lengthened vertical rod is convenient for the construction operation of the second layer of lengthened vertical rod, and meanwhile, the reserved middle area can be used as a transportation channel for materials such as reinforcing steel bars, formworks and the like;
s4, a second layer of lengthened vertical rods are additionally arranged in the middle reserved area of the tops of the first layer of lengthened vertical rods upwards; the second layer of lengthened vertical rods can be used as an operation platform for installing reinforcing steel bars and templates near the dome crown;
s5, reserving a space for mounting a supporting framework at the top of the lengthened vertical rod of the second layer, and paving a wood plate at a position with a certain height away from the top of the vertical rod to serve as a third operation platform; preferably, a space of 20-25 cm is reserved at the top of the second layer of lengthened vertical rod for mounting a supporting framework at a top support and a dome, and a horizontal cross rod is erected 20-25 cm away from the top of the second layer of lengthened vertical rod for supporting a wood board for laying a third working platform;
and S6, respectively installing top supports at the tops of the rest side wall support, the first layer of lengthened vertical rod and the second layer of lengthened vertical rod on the basis of the first, second and third operation platforms, and installing a supporting framework on the top supports to form the dome template. Specifically, the supporting framework comprises main ridges 4 and secondary ridges 5, the main ridges 4 are spliced into an arch ring structure, and each arch ring is vertically tangent to a dome shape; the secondary corrugation 5 is arranged in a form perpendicular to the arch structure of the primary corrugation 4. The stupefied 4 of owner adopts two U shaped steel, stupefied 5 of inferior adopts the rectangular pipe, the stupefied top of installing at owner of inferior adopts the ligature area to tie up firmly fixedly.
In the description of the embodiments of the present application, it should be noted that the terms "first", "second", "third", and the like are used for distinguishing the description, and are not to be construed as indicating or implying relative importance. The present invention may also have other embodiments, for example, more layers of work platforms may be arranged as required, or a separate small work platform may be arranged in a certain area, which may be understood as an improvement of the applicability of the present application, and all of which fall within the scope of the appended claims.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (7)
1. A construction method of a space long-span dome structure based on a multilayer operation platform is characterized by comprising the following steps: the multilayer operation platform is a construction operation platform which is built in a layered mode in blocks on the basis of the side wall support, and the multilayer operation platform is in a step shape which is matched with a space large-span dome structure.
2. The construction method of the space large-span dome structure based on the multilayer working platform as claimed in claim 1, wherein: the method comprises the following specific steps:
s1, after the side wall is poured, reserving an area in the middle of the top of the side wall support, and paving a wood board in the area of the top of the rest side wall support to serve as a first operation platform;
s2, adding a first layer of lengthened vertical rods upwards in a reserved area in the middle of the top of the side wall support;
s3, reserving a middle area of the top of the first layer of lengthened vertical rods, and paving wood boards in the top area of the remaining first layer of lengthened vertical rods to serve as a second operation platform;
s4, a second layer of lengthened vertical rods are additionally arranged in the middle reserved area of the tops of the first layer of lengthened vertical rods upwards;
s5, reserving a space for installing a supporting framework at the top of the second layer of lengthened vertical rod, and paving a wood board at a position with a certain height away from the top of the second layer of lengthened vertical rod to serve as a third operation platform;
and S6, based on the first, second and third operation platforms, mounting top supports at the tops of the rest side wall supports, the first layer of lengthened vertical rods and the second layer of lengthened vertical rods, and mounting supporting frameworks on the top supports to form the dome template.
3. The construction method of the space large-span dome structure based on the multilayer working platform as claimed in claim 2, wherein: in the step S1, a horizontal cross rod is erected 20-25 cm away from the top of the upright rod in the residual area and is used for supporting and paving the wood board of the first operation platform; in the step S3, a horizontal cross rod is erected 20-25 cm away from the top of the rest first layer of lengthened vertical rods and used for supporting and paving the wood board of the second operation platform; in step S5, a horizontal cross rod is erected 20-25 cm away from the top of the second layer of lengthened vertical rod and is used for supporting and paving the wood board of the third working platform.
4. The construction method of the space large-span dome structure based on the multilayer working platform as claimed in claim 2, wherein: the supporting framework comprises a main edge and a secondary edge, the main edge is spliced into an arch ring structure, each arch ring is vertically tangent to a dome ball, the secondary edge is arranged at the top of the main edge and is arranged in a mode perpendicular to the main edge arch ring structure.
5. The construction method of the space large-span dome structure based on the multilayer working platform as claimed in claim 4, wherein: the main edge is made of double-U-shaped steel.
6. The construction method of the space large-span dome structure based on the multilayer working platform as claimed in claim 4, wherein: the secondary ridges are rectangular tubes.
7. The construction method of the space large-span dome structure based on the multilayer working platform as claimed in claim 4, wherein: the secondary arris is fixed to the primary arris by a binding band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210945873.4A CN115288193A (en) | 2022-08-08 | 2022-08-08 | Space large-span dome structure construction method based on multilayer operation platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210945873.4A CN115288193A (en) | 2022-08-08 | 2022-08-08 | Space large-span dome structure construction method based on multilayer operation platform |
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| CN115288193A true CN115288193A (en) | 2022-11-04 |
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| CN111270852A (en) * | 2020-03-27 | 2020-06-12 | 贵州建工集团第四建筑工程有限责任公司 | Construction method of novel formwork support system for reinforced concrete silo dome |
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| WO2020253001A1 (en) * | 2019-06-19 | 2020-12-24 | 中铁十九局集团第六工程有限公司 | Two-step fast closed tunnel support structure having inverted arch and construction method therefor |
| CN112554549A (en) * | 2020-11-13 | 2021-03-26 | 云南建投第六建设有限公司 | Formwork supporting structure of circular arc shell plate and construction method |
| CN212926984U (en) * | 2020-08-12 | 2021-04-09 | 中国建筑第七工程局有限公司 | Movable suspension operating platform |
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2022
- 2022-08-08 CN CN202210945873.4A patent/CN115288193A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542105A (en) * | 2016-06-28 | 2018-01-05 | 衡阳市金泓建筑装饰设计有限公司 | The integral type piping lane built using the pavement underground space |
| CN106545030A (en) * | 2016-09-30 | 2017-03-29 | 泰宏建设发展有限公司 | A kind of small-sized buried cistern and preparation method thereof |
| CN207553606U (en) * | 2017-11-25 | 2018-06-29 | 中铁十二局集团第二工程有限公司 | A kind of mobile holder device of overhead station construction |
| CN108678258A (en) * | 2018-06-20 | 2018-10-19 | 中国建筑局（集团）有限公司 | Large span hemispherical armored concrete dome structure and its construction method |
| WO2020253001A1 (en) * | 2019-06-19 | 2020-12-24 | 中铁十九局集团第六工程有限公司 | Two-step fast closed tunnel support structure having inverted arch and construction method therefor |
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