CN109680915B - Scaffold with hemispherical structural surface and erection method thereof - Google Patents
Scaffold with hemispherical structural surface and erection method thereof Download PDFInfo
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- CN109680915B CN109680915B CN201811592008.6A CN201811592008A CN109680915B CN 109680915 B CN109680915 B CN 109680915B CN 201811592008 A CN201811592008 A CN 201811592008A CN 109680915 B CN109680915 B CN 109680915B
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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
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
- E04G3/243—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons following the outside contour of a building
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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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
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- Movable Scaffolding (AREA)
Abstract
The invention discloses a scaffold with a hemispherical structural surface and a building method thereof, wherein the scaffold comprises a plurality of stress cones, two rows of arc-shaped steel pipes are arranged on the outer wall of a concrete structure at the position of each row of stress cones, the two rows of arc-shaped steel pipes are fixed on the outer wall of the concrete structure through locking screws and fastening backing plates, the scaffold also comprises a plurality of rows of scaffold upright rods, the outer wall of the lower end of each row of scaffold upright rods is connected with the outer wall of the arc-shaped steel pipes through fasteners, a longitudinal horizontal rod is arranged between every two adjacent scaffold upright rods in each row of scaffold upright rods, and a transverse horizontal rod perpendicular to both the longitudinal horizontal rod and. The scaffold with the hemispherical structural surface can solve the problem of erecting an operation platform in the construction process of constructing and installing the spherical structure, and provides a safe and reliable operation platform and an erecting method for similar structure construction.
Description
Technical Field
The invention relates to a scaffold, in particular to a semispherical structural surface scaffold and an erection method thereof.
Background
The nuclear power plant reactor building is a third barrier to radioactive containment for preventing the release of radioactive materials to the environment during normal operation and accidents. Under normal working conditions and accident working conditions, radiation protection is provided for field personnel, and meanwhile, each system in a reactor plant is protected from being affected by external disasters. The containment is a reinforced concrete cylinder structure and comprises a cylinder body and a hemispherical dome part. In the construction process of building and installing the containment, the conventional hanging rack platform is suitable for a barrel structure, a dome spherical structure cannot be hung, an operation platform is not used in field construction, and the safety risk is very high in the construction process.
Disclosure of Invention
The invention aims to solve the technical problems that in the construction process of building and installing a containment, a conventional hanging frame platform is suitable for a barrel structure, a dome spherical structure cannot be hung, no operation platform is used in field construction, and the safety risk in the construction process is extremely high.
The invention is realized by the following technical scheme:
a scaffold with hemispherical structural surface is composed of several stressed cones embedded in the hemispherical concrete structure, several rows of stressed cones sequentially arranged along the hemispherical surface of hemispherical concrete structure from bottom to top, two rows of arc-shaped steel tubes laid on the external surface of concrete structure at each row of stressed cones along the circumference direction, locking screw bolts between said two rows of arc-shaped steel tubes and inserted in said stressed cones, and multiple scaffold vertical rods fixed to said arc-shaped steel tubes by fastening plate, be equipped with vertical horizontal pole between the adjacent two scaffold pole settings in every row of scaffold pole setting, vertical horizontal pole and the crossing department of scaffold pole setting have set up with vertical horizontal pole and both equal vertically horizontal poles of scaffold pole setting, and the one end of horizontal pole passes through the fastener and links to each other with the arc steel pipe, and the other end passes through the fastener and links to each other with vertical horizontal pole.
The spherical structural surface scaffold has the advantages of ingenious structure, simplicity and convenience in erection, good stability, larger stress, safety and practicability, can solve the problem of erection of an operation platform in the construction process of spherical knot construction and installation, provides a safe and reliable operation platform and an erection method for similar structural construction, can be erected locally or annularly in a whole circle according to actual conditions on site, is favorable for the overall image of site safe civilized construction, and has good popularization and application values and development prospects. According to the scaffold, the stress cone perpendicular to the tangent line of each point of the spherical concrete structure is embedded in the spherical surface, and then the multiple rows of arc-shaped circular tubes are installed on the surface of the concrete structure through the stress cone, so that the purpose of providing stable and stressed installation points for the vertical rod and the horizontal rod of the scaffold on the spherical surface is achieved, the scaffold structure which is gradually arranged from top to bottom and from outside to inside and is matched with the shape of the concrete structure in a fit mode is formed, and a safe and reliable platform is provided for construction of the spherical structure surface.
The lower extreme setting of the scaffold pole setting of bottommost row is on the supporting component, and the atress cone has also been preset to supporting component department concrete structure inside, and the supporting component passes through the atress cone to be fixed on concrete structure surface, through the surperficial supporting component of installation at concrete structure to the scaffold pole setting of bottommost row plays good supporting role, avoids the lower extreme of the scaffold pole setting of bottommost row to directly prop on concrete structure's surface, thereby provides a good stable scaffold base.
The cushion block component is arranged between the arc-shaped steel pipe and the outer wall of the concrete structure along the circumferential direction, the contact between the arc-shaped steel pipe and the surface of the outer wall of the concrete structure can be avoided, when the locking screw and the fastening cushion plate lock the arc-shaped steel pipe, the cushion block component plays roles of isolation and support, the locking installation of the arc-shaped steel pipe is guaranteed, and the abrasion of the arc-shaped steel pipe to the outer wall of the concrete structure can be avoided.
The springboard is laid above two adjacent horizontal rods to form an operation platform, so that the constructors can conveniently tread to perform construction.
The protective net is hung on the inner side of the vertical horizontal rod above the springboard, so that the safety of the scaffold is improved.
A ladder stand is arranged between the upper and lower layers of the adjacent gangplank, so that a passage for constructors to pass up and down is formed.
A method for building a scaffold with a hemispherical structural surface comprises the following steps:
s1: determining the erection space of each component and the scaffold according to the load design;
s2: pre-burying a plurality of rows of stressed cones in the concrete structure according to the circumferential, longitudinal and transverse erection intervals determined in the step S1;
s3: cleaning the stressed cones after the concrete structure is constructed, mounting a support member on the acceptance cone of the bottommost row through a locking screw, mounting two rows of arc-shaped steel pipes on the circumference of the outer surface of the concrete structure at the position of each row of the rest stressed cones, enabling one end of the locking screw to penetrate through the space between the two rows of the arc-shaped steel pipes to be connected with the stressed cones, and sleeving a fastening base plate on the other end of the locking screw to fasten the arc-shaped steel pipes on the outer wall of the concrete structure;
s4: the bottom ends of the scaffold upright posts in the lowest row are erected on the supporting member, then the outer walls of the lower ends of the scaffold upright posts in the lowest row are connected with the outer walls of the arc-shaped steel pipes in the lowest row through fasteners, and then the arc-shaped steel pipes in proper positions are selected according to the determined transverse erection space to erect scaffold upright posts in the second row, the third row and other rows;
s5: a longitudinal horizontal rod is erected between two adjacent scaffold upright rods in each row of scaffold upright rods, then a horizontal rod which is horizontally arranged is erected at the intersection of the longitudinal horizontal rod and the scaffold upright rods, one end of the horizontal rod is connected with an arc-shaped steel pipe which is in positive correspondence in the horizontal direction through a fastener, and the other end of the horizontal rod is connected with the longitudinal horizontal rod through the fastener;
s6: and (3) paving gangplank between two adjacent horizontal rods to form an operation platform, then hanging a protective net on the inner side of the longitudinal horizontal rod above the operation platform, and finally erecting a ladder stand between the upper and lower layers of operation platforms to complete the erection of the scaffold.
According to the method, a whole circle of annularly closed scaffolds can be erected for the spherical surface structure, scaffolds at local parts can also be erected, a safe and reliable operation platform is provided for on-site spherical structure surface construction, and the problem of erecting and dismantling scaffolds with similar structures is solved.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention relates to a scaffold with a hemispherical structural surface and a setting method thereof, wherein the scaffold with the spherical structural surface has the advantages of ingenious structure, simple and convenient setting, good stability, larger stress, safety and practicability, can solve the problem of setting up an operation platform in the construction process of spherical joint construction and installation, provides a safe and reliable operation platform and a setting method for similar structure construction, can be set up locally or circularly in a whole circle according to the actual situation on site, is favorable for the overall image of safe and civilized construction on site, and has better popularization and application values and development prospects;
2. according to the hemispherical structural surface scaffold and the erection method thereof, the support members are arranged on the surface of a concrete structure, so that the bottom row of scaffold upright posts can be well supported, the lower ends of the bottom row of scaffold upright posts are prevented from being directly supported on the surface of the concrete structure, and a good and stable scaffold base is provided;
3. according to the scaffold with the hemispherical structural surface and the erection method thereof, when the locking screw and the fastening base plate lock the arc-shaped steel pipe, the cushion block members play roles of isolation and support, so that the locking and installation of the arc-shaped steel pipe are ensured, and the abrasion of the arc-shaped steel pipe to the outer wall of a concrete structure can be avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partially enlarged view of the structure of the present invention;
fig. 3 is a partially enlarged view of the structure of the present invention.
Reference numbers and corresponding part names in the drawings:
1-stress cone, 2-arc steel pipe, 3-locking screw rod, 4-fastening backing plate, 5-scaffold upright rod, 6-fastener, 7-longitudinal horizontal rod, 8-transverse horizontal rod, 9-supporting member, 10-cushion block member, 11-springboard, 12-protective net, 13-ladder stand and 14-concrete structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1, 2 and 3, the invention relates to a scaffold with a hemispherical structure surface and a method for erecting the scaffold, comprising a plurality of stress cones 1 pre-embedded in a hemispherical concrete structure 14, a plurality of rows of stress cones 1 are sequentially arranged along the hemispherical surface of the hemispherical concrete structure from bottom to top, each row of stress cones 1 are uniformly arranged along the horizontal circumferential direction of the concrete structure, each stress cone 1 is arranged along the direction parallel to the radial direction of the concrete structure, the end part of each stress cone 1 points to the center of the concrete structure, two rows of arc-shaped steel pipes 2 are laid on the outer wall of the concrete structure at the position of each row of stress cones 1 along the circumferential direction, a locking screw 3 is arranged between the two rows of arc-shaped steel pipes 2, one end of the locking screw 3 is inserted into the stress cone 1, the other end of the locking screw 3 is fixed with the arc-shaped steel pipes 2 through a fastening backing plate 4, and a, every row of scaffold pole setting 5's lower extreme outer wall passes through fastener 6 and links to each other with 2 outer walls of arc steel pipe, is equipped with vertical horizon bar 7 between two adjacent scaffold pole setting 5 in every row of scaffold pole setting 5, vertical horizon bar 7 and the crossing department of scaffold pole setting 5 have been set up with vertical horizon bar 7 and the equal vertically horizontal horizon bar 8 in both of scaffold pole setting 5, fastener 6 is passed through to the one end of horizontal horizon bar 8 and arc steel pipe 2 links to each other, and the other end passes through fastener 6 and links to each other with vertical horizon bar 7.
The spherical structural surface scaffold has the advantages of ingenious structure, simplicity and convenience in erection, good stability, larger stress, safety and practicability, can solve the problem of erection of an operation platform in the construction process of spherical knot construction and installation, provides a safe and reliable operation platform and an erection method for similar structural construction, can be erected locally or annularly in a whole circle according to actual conditions on site, is favorable for the overall image of site safe civilized construction, and has good popularization and application values and development prospects. According to the scaffold, the stress cone perpendicular to the tangent line of each point of the spherical concrete structure is embedded in the spherical surface, and then the multiple rows of arc-shaped circular tubes are installed on the surface of the concrete structure through the stress cone, so that the purpose of providing stable and stressed installation points for the vertical rod and the horizontal rod of the scaffold on the spherical surface is achieved, the scaffold structure which is gradually arranged from top to bottom and from outside to inside and is matched with the shape of the concrete structure in a fit mode is formed, and a safe and reliable platform is provided for construction of the spherical structure surface.
Preferably, the lower end of the bottom row of scaffold upright posts is arranged on the supporting member 9, the stress cone is also preset inside the concrete structure at the supporting member, the supporting member is fixed on the surface of the concrete structure through the stress cone, and the supporting member is installed on the surface of the concrete structure, so that the bottom row of scaffold upright posts can be well supported, the lower end of the bottom row of scaffold upright posts can be prevented from being directly supported on the surface of the concrete structure, and a good and stable scaffold base can be provided.
Preferably, be equipped with cushion component 10 along the circumferencial direction spacer between the outer wall of arc steel pipe and concrete structure, can avoid between the arc steel pipe with concrete structure's outer wall surface contact, when locking screw and fastening backing plate locked the arc steel pipe, play the effect of keeping apart, filling up the support through the cushion component, both guaranteed the locking installation of arc steel pipe, can avoid the arc steel pipe again to cause wearing and tearing to concrete structure's outer wall.
Preferably, the springboard 11 is laid above two adjacent horizontal rods to form an operation platform, so that a constructor can conveniently tread to perform construction.
Preferably, a protective net 12 is hung on the inner side of the vertical horizontal rod above the gangway, so that the safety of the scaffold is improved.
Preferably, a ladder 13 is arranged between the upper and lower layers of the springboards, so that a passage for constructors to pass up and down is formed.
Example 2
A method for building a scaffold with a hemispherical structural surface comprises the following steps:
s1: determining the erection space of each component and the scaffold according to the load design;
s2: pre-burying a plurality of rows of stressed cones in the concrete structure according to the circumferential, longitudinal and transverse erection intervals determined in the step S1;
s3: cleaning the stressed cones after the concrete structure is constructed, mounting a support member on the acceptance cone of the bottommost row through a locking screw, mounting two rows of arc-shaped steel pipes on the circumference of the outer surface of the concrete structure at the position of each row of the rest stressed cones, enabling one end of the locking screw to penetrate through the space between the two rows of the arc-shaped steel pipes to be connected with the stressed cones, and sleeving a fastening base plate on the other end of the locking screw to fasten the arc-shaped steel pipes on the outer wall of the concrete structure;
s4: the bottom ends of the scaffold upright posts in the lowest row are erected on the supporting member, then the outer walls of the lower ends of the scaffold upright posts in the lowest row are connected with the outer walls of the arc-shaped steel pipes in the lowest row through fasteners, and then the arc-shaped steel pipes in proper positions are selected according to the determined transverse erection space to erect scaffold upright posts in the second row, the third row and other rows;
s5: a longitudinal horizontal rod is erected between two adjacent scaffold upright rods in each row of scaffold upright rods, then a horizontal rod which is horizontally arranged is erected at the intersection of the longitudinal horizontal rod and the scaffold upright rods, one end of the horizontal rod is connected with an arc-shaped steel pipe which is in positive correspondence in the horizontal direction through a fastener, and the other end of the horizontal rod is connected with the longitudinal horizontal rod through the fastener;
s6: and (3) paving gangplank between two adjacent horizontal rods to form an operation platform, then hanging a protective net on the inner side of the longitudinal horizontal rod above the operation platform, and finally erecting a ladder stand between the upper and lower layers of operation platforms to complete the erection of the scaffold.
According to the method, a whole circle of annularly closed scaffolds can be erected for the spherical surface structure, scaffolds at local parts can also be erected, a safe and reliable operation platform is provided for on-site spherical structure surface construction, and the problem of erecting and dismantling scaffolds with similar structures is solved.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A scaffold with a hemispherical structural surface is characterized by comprising a plurality of stress cones (1) pre-embedded in a hemispherical concrete structure (14), wherein a plurality of rows of stress cones (1) are sequentially arranged along the hemispherical surface of the hemispherical concrete structure from bottom to top, each row of stress cones (1) are uniformly arranged along the horizontal circumferential direction of the concrete structure, each stress cone (1) is arranged along the direction parallel to the radial direction of the concrete structure, the end part of each stress cone points to the center of the concrete structure, two rows of arc-shaped steel pipes (2) are laid on the outer wall of the concrete structure at the position of each row of stress cones (1) along the circumferential direction, a locking screw (3) is arranged between the two rows of arc-shaped steel pipes (2), one end of the locking screw (3) is inserted into the stress cone (1), the other end of the locking screw (3) is fixed with the arc-shaped steel, still include a plurality of scaffold pole setting (5) of follow supreme multirow along the vertical setting of circumferencial direction that sets gradually down, the lower extreme outer wall of every row of scaffold pole setting (5) passes through fastener (6) and links to each other with arc steel pipe (2) outer wall, be equipped with vertical horizon bar (7) between two adjacent scaffold pole setting (5) in every row of scaffold pole setting (5), vertical horizon bar (7) are crossed with scaffold pole setting (5) and are located to be set up with vertical horizon bar (7) and scaffold pole setting (5) both equal vertically horizontal horizon bar (8), the one end of horizontal horizon bar (8) is passed through fastener (6) and is linked to each other with arc steel pipe (2), the other end passes through fastener (6) and links to each other with vertical horizon bar (7).
2. A scaffold with a hemispherical structural surface as claimed in claim 1, wherein the lower end of the lowest row of scaffold uprights (5) is arranged on a support member (9), a stress cone (1) is also preset in the concrete structure at the support member (9), and the support member (9) is fixed on the surface of the concrete structure through the stress cone (1).
3. A scaffolding with hemispherical structural surfaces as claimed in claim 1, wherein the spacer members (10) are spaced apart from the curved steel pipes (2) and the outer wall of the concrete structure in a circumferential direction.
4. A scaffolding with hemispherical structural surfaces according to claim 1, wherein gangway boards (11) are laid above two adjacent horizontal bars (8).
5. A scaffold with a hemispherical structural surface according to claim 4, characterized in that a protective net (12) is hung on the inner side of the upper longitudinal horizontal bar (7) of the springboard (11).
6. A scaffolding with hemispherical structural surfaces as claimed in claim 4, wherein a ladder (13) is provided between adjacent upper and lower gangway boards (11).
7. A method for erecting a scaffold of hemispherical structural surfaces as claimed in any one of claims 1 to 6, comprising the steps of:
s1: determining the erection space of each component and the scaffold according to the load design;
s2: pre-burying a plurality of rows of stressed cones in the concrete structure according to the circumferential, longitudinal and transverse erection intervals determined in the step S1;
s3: cleaning the stressed cones after the concrete structure is constructed, mounting a support member on the acceptance cone of the bottommost row through a locking screw, mounting two rows of arc-shaped steel pipes on the circumference of the outer surface of the concrete structure at the position of each row of the rest stressed cones, enabling one end of the locking screw to penetrate through the space between the two rows of the arc-shaped steel pipes to be connected with the stressed cones, and sleeving a fastening base plate on the other end of the locking screw to fasten the arc-shaped steel pipes on the outer wall of the concrete structure;
s4: the bottom ends of the scaffold upright posts in the lowest row are erected on the supporting member, then the outer walls of the lower ends of the scaffold upright posts in the lowest row are connected with the outer walls of the arc-shaped steel pipes in the lowest row through fasteners, and then the arc-shaped steel pipes in proper positions are selected according to the determined transverse erection space to erect scaffold upright posts in the second row, the third row and other rows;
s5: a longitudinal horizontal rod is erected between two adjacent scaffold upright rods in each row of scaffold upright rods, then a horizontal rod which is horizontally arranged is erected at the intersection of the longitudinal horizontal rod and the scaffold upright rods, one end of the horizontal rod is connected with an arc-shaped steel pipe which is in positive correspondence in the horizontal direction through a fastener, and the other end of the horizontal rod is connected with the longitudinal horizontal rod through the fastener;
s6: and (3) paving gangplank between two adjacent horizontal rods to form an operation platform, then hanging a protective net on the inner side of the longitudinal horizontal rod above the operation platform, and finally erecting a ladder stand between the upper and lower layers of operation platforms to complete the erection of the scaffold.
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| CN201811592008.6A CN109680915B (en) | 2018-12-25 | 2018-12-25 | Scaffold with hemispherical structural surface and erection method thereof |
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| CN201811592008.6A CN109680915B (en) | 2018-12-25 | 2018-12-25 | Scaffold with hemispherical structural surface and erection method thereof |
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| CN109680915B true CN109680915B (en) | 2021-06-01 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111005547B (en) * | 2019-12-31 | 2023-10-31 | 广东省第一建筑工程有限公司 | Construction method of outer scaffold of two-way bending and twisting staggered floor elevation |
| CN111749450A (en) * | 2020-06-30 | 2020-10-09 | 武汉一冶建筑安装工程有限责任公司 | Safety protection construction method for large-span cast-in-situ dome |
| CN116220329B (en) * | 2023-05-08 | 2023-09-22 | 南通宏梁建筑科技有限公司 | Spherical structural surface construction platform building device and building method thereof |
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| US4257491A (en) * | 1979-01-29 | 1981-03-24 | Prescon Corporation | Scaffold apparatus |
| NL8203407A (en) * | 1982-08-31 | 1984-03-16 | Antonius Petrus Cornelis Bakke | Scaffolding construction for dome-shaped roof - has triangular work trestles suspended from upper fixed cables. |
| JP2000129908A (en) * | 1998-10-28 | 2000-05-09 | Mitsubishi Heavy Ind Ltd | Working scaffold for structure |
| CN205046826U (en) * | 2015-09-18 | 2016-02-24 | 武汉一冶钢结构有限责任公司 | Support arrangement for extremely interior top platform on spherical tank |
| CN208105291U (en) * | 2018-03-22 | 2018-11-16 | 中国水利水电第八工程局有限公司 | Overhanging steel platform suitable for rock side slope |
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2018
- 2018-12-25 CN CN201811592008.6A patent/CN109680915B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4257491A (en) * | 1979-01-29 | 1981-03-24 | Prescon Corporation | Scaffold apparatus |
| NL8203407A (en) * | 1982-08-31 | 1984-03-16 | Antonius Petrus Cornelis Bakke | Scaffolding construction for dome-shaped roof - has triangular work trestles suspended from upper fixed cables. |
| JP2000129908A (en) * | 1998-10-28 | 2000-05-09 | Mitsubishi Heavy Ind Ltd | Working scaffold for structure |
| CN205046826U (en) * | 2015-09-18 | 2016-02-24 | 武汉一冶钢结构有限责任公司 | Support arrangement for extremely interior top platform on spherical tank |
| CN208105291U (en) * | 2018-03-22 | 2018-11-16 | 中国水利水电第八工程局有限公司 | Overhanging steel platform suitable for rock side slope |
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