CN112523520B - Construction method of lifting protection platform for prefabricated building - Google Patents
Construction method of lifting protection platform for prefabricated building Download PDFInfo
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- CN112523520B CN112523520B CN202011464584.XA CN202011464584A CN112523520B CN 112523520 B CN112523520 B CN 112523520B CN 202011464584 A CN202011464584 A CN 202011464584A CN 112523520 B CN112523520 B CN 112523520B
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- prefabricated
- protection platform
- wall
- wall attaching
- protection
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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
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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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
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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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
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention provides a construction method of a lifting protection platform for an assembly type building, which comprises the following steps: (1) pre-installing at least two wall attaching pieces on the prefabricated part, and then hoisting the prefabricated part to an installation position by using a tower crane; (2) the protection platform is lifted along the wall attaching pieces, at least 3 wall attaching pieces in the lifting working condition play a role in guiding the protection platform, the protection platform is in the use working condition after being lifted to the set position, at least 4 wall attaching pieces in the use working condition play a role in guiding and supporting the protection platform, the prefabricated parts are fixed under the protection of the protection platform, and then the wall attaching pieces on the prefabricated parts at the lowest layer of the protection platform are disassembled; (3) and (3) pre-mounting the wall attaching piece detached in the step (2) on the next prefabricated part, and repeating the steps (1) and (2). The invention fully considers the characteristics of the fabricated building and the requirement of quick construction, and the wall attaching piece is pre-installed on the prefabricated component, thereby reducing the protection height, reducing the construction difficulty and greatly reducing the protection cost.
Description
Technical Field
The invention relates to the technical field of assembly type building construction, in particular to a construction method of a lifting protection platform for an assembly type building.
Background
The fabricated building is a building with a use function, which is formed by completely producing part or all of components of the building in a component prefabricating factory and then transporting the components to a construction site. The prefabricated component also can have the error in the in-process of preparation and installation, because of attaching the wall support in the application of assembly type structure, the through-wall bolt preformed hole need pinpoint in advance at the mill, therefore whether the through-wall bolt hole of prefabricated construction is unanimous with the design is crucial. If the deviation between the reserved hole and the design scheme is larger than +/-15 mm, the wall-attached support cannot be installed, the design installation scheme can only be adjusted by changing the attachment position or punching the hole again on site, and the waste of financial resources and material resources is caused. When the attached lifting scaffold is applied to construction protection of an assembled structure, an attachment scheme of a frame body needs to be fully considered by a climbing frame design/construction unit, an attachment mode and a preformed hole position are negotiated and communicated with a prefabricated part manufacturer in advance, the safety of the attachment mode is guaranteed, and the accuracy of the preformed hole position is guaranteed.
In addition, for the fabricated building, the construction period is short, the efficiency is high, and the protection is only the uppermost layer. The existing construction mode of the lifting protection platform needs to set up 4-5 times of the height of a floor to meet the requirements, and the unnecessary protection cost is greatly increased. As shown in figure 1, the existing construction method of the attached lifting protection platform is as follows, one floor is adopted, the distance between the attached walls is large, the number of the attached walls is small, the height of a cantilever of a scaffold is caused to be large, only two attached walls are needed in the process that the lowermost attached wall moves to the uppermost part during lifting (in the actual construction process, the attached wall can be installed after being lifted in place, the height of the cantilever is 7.5 m-4.5 m according to requirements, but the cantilever cannot be lifted during construction, the uppermost guide seat is lifted without being installed, and the height of the uppermost guide seat is 7.5m after being lifted in place). The construction method is suitable for the cast-in-place concrete outer wall structure, if the construction method is applied to the fabricated building, the deviation of the reserved hole can easily occur, the reserved hole can deviate, because two wall attaching pieces are arranged in the process to act, two points form a line, if one point deviates, the lifting can still be carried out, but the deviation can deviate from the original preset path to move, but the parallel with the wall surface can not be ensured.
In addition, in the prior art, there is a product called "hanging rack" for use in prefabricated buildings, which has the following disadvantages: the protection height is 1-2 times of the floor, but the self-climbing cannot be realized, and a tower crane is needed to be used for lifting to the upper layer. The hanging rack needs to be lifted by the tower crane in a slicing mode, so that a plurality of fractures (sometimes called grouping seams) exist, the hanging rack is not integral and is not tightly closed, and small objects are easy to fall off. Because the tower crane promotes needs artificial supplementary, and the difficulty during installation (needs the tower crane to hang and organize the support body and aim at the preformed hole, and the people is inboard at the building, and the support body is in the outside, this is very difficult), increases construction operation safety risk. The grouping is too garrulous (generally 2-3m is divided into a group, the corner is provided with at most one corner when meeting the corner, and the corner can be installed only by aligning holes on two sides), the construction efficiency is low, the appearance of the frame body is not good, and the image is influenced.
Disclosure of Invention
The invention provides a construction method of a lifting protection platform for an assembly type building, which fully considers the characteristics of the assembly type building and the requirement of quick construction, and pre-installs wall attaching pieces on prefabricated parts, thereby reducing the protection height and reducing the construction difficulty, greatly reducing the protection cost and improving the economic benefit.
The technical scheme of the invention is realized as follows: a construction method of a lifting protection platform for an assembly type building comprises the following steps:
(1) pre-installing at least two wall attaching pieces on the prefabricated part, and then hoisting the prefabricated part to an installation position by using a tower crane;
(2) the protection platform is lifted along the wall attaching pieces, at least 3 wall attaching pieces in the lifting working condition play a role in guiding the protection platform, the protection platform is in the use working condition after being lifted to the set position, at least 4 wall attaching pieces in the use working condition play a role in guiding and supporting the protection platform, the prefabricated parts are fixed under the protection of the protection platform, and then the wall attaching pieces on the prefabricated parts at the lowest layer of the protection platform are disassembled;
(3) and (3) pre-mounting the wall attaching piece detached in the step (2) on the next prefabricated part, and repeating the steps (1) and (2).
Further, in the step (2), the protection height of the protection platform is 2-3 layers of standard floor height.
Further, in the step (1), two wall attaching pieces are pre-installed on the prefabricated part, and the two wall attaching pieces are respectively located on the upper beam and the lower beam of the prefabricated part.
Furthermore, the prefabricated component is a prefabricated wall body II with a bay window, the two wall attaching pieces are respectively positioned on the upper side and the lower side of the bay window, and the two wall attaching pieces are connected through a diagonal draw bar.
Furthermore, the prefabricated part is a prefabricated wall body I or a prefabricated shear wall with a flat window.
Furthermore, attach the wall spare and include the direction support, the guide rail slip that leading wheel and protection platform were passed through to the one end of direction support links to each other, and the other end links to each other with prefabricated wall body through wearing the wall bolt, and the one end upside that the direction support is close to the guide rail is provided with the shore, and the downside is provided with the safety hook.
The invention has the beneficial effects that:
1. according to the invention, four wall-attached pieces play a role in the use working condition, 3 wall-attached pieces play a role in the lifting working condition, at least three wall-attached pieces can be guaranteed to play a role in the whole process, three points form a line, the wall surface can be guaranteed to be parallel, the vertical perpendicularity of the platform can be effectively improved, and the installation precision is guaranteed;
2. according to the characteristics of the prefabricated parts, the wall attaching parts are respectively arranged at the upper part and the lower part of each prefabricated structural part, the non-standard parts such as the convex window and the like are connected into a whole by using the steel pull rod (the vertical verticality and the stability of the wall attaching parts are ensured), so that the height of the cantilever can be effectively reduced, the vertical verticality is improved, and the problems of high cantilever height and inaccurate pre-burying in the prior art can be solved. For an assembly type building with 3m layer height, the maximum cantilever height of the protection platform construction is 2m, namely when the protection platform is lifted in place, the maximum cantilever height of the existing protection platform construction mode is 4.5m theoretically (the actual construction reaches 7.5m), and the protection platform can be lifted in place and then formwork support is carried out next time.
3. According to the assembly type lifting protection platform for the building, the overall protection height is 2-3 layers of standard floor height, so that the construction requirement can be met, the height of the frame body is reduced, and the cost is saved; the wall-attached piece can be pre-installed on the prefabricated part, the safety risk of high-altitude operation is reduced, the protection cost is reduced, the processing, manufacturing and construction procedures are simple, the reliability and the use safety in the construction process are further improved, the wall-attached piece and the lifting protection platform can adopt an attached lifting protection platform (scaffold) in the prior art, no additional construction equipment is needed, and the popularization is facilitated;
drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic construction diagram of an attached lifting protection platform in the prior art, wherein the attached lifting protection platform is (A) before lifting, (B) during lifting, and (C) after lifting;
FIG. 2 is a schematic structural diagram of a prefabricated wall I with a flat window;
FIG. 3 is a schematic view of the construction of the protection platform of the present invention for a prefabricated wall I, (A) before lifting, (B) in preparation for lifting, (C) during lifting, and (D) after lifting;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a schematic structural view of a prefabricated shear wall;
FIG. 6 is a schematic view of the construction of the protective platform of the present invention for a precast shear wall, (A) before lifting, (B) in preparation for lifting, (C) during lifting, and (D) after lifting;
FIG. 7 is a schematic structural diagram of a prefabricated wall body II with a bay window;
FIG. 8 is a schematic view of the construction of the protection platform of the present invention for a prefabricated wall II, (A) before lifting, (B) in preparation for lifting, (C) during lifting, and (D) after lifting;
fig. 9 is a schematic view of a connection structure of the prefabricated wall body II and the wall attaching member.
The anti-falling device comprises a prefabricated part 1, a wall attaching part 2, a protection platform 3, a guide support 4, guide wheels 5, guide rails 6, a top support 7, an anti-falling device 8, a flat window 9, a prefabricated wall body I10, a prefabricated shear wall 11, a convex window 12, a prefabricated wall body II 13, a cross rod 14, a diagonal draw bar 15 and a connecting plate 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 3, 6 and 8, a construction method of the elevating protection platform 3 for prefabricated buildings comprises the following steps:
(1) pre-installing at least two wall attaching pieces 2 on the prefabricated part 1, and then hoisting the prefabricated part 1 to an installation position by using a tower crane;
(2) the protection height of the protection platform 3 is 2-3 layers of standard floor height, the protection platform 3 is lifted along the wall attaching pieces 2, at least 3 wall attaching pieces 2 play a role in guiding the protection platform 3 in the lifting working condition, the protection platform 3 is in the use working condition after being lifted to the set position, at least 4 wall attaching pieces 2 play a role in guiding and supporting the protection platform 3 in the use working condition, the prefabricated part 1 is fixed under the protection of the protection platform 3, and then the wall attaching pieces 2 on the prefabricated part 1 at the lowest layer of the protection platform 3 are disassembled;
(3) and (3) pre-mounting the wall attaching member 2 detached in the step (2) on the next prefabricated part 1, and repeating the steps (1) and (2).
In the step (1), two wall attaching pieces 2 are pre-installed on the prefabricated part 1, and the two wall attaching pieces 2 are respectively positioned on an upper beam and a lower beam of the prefabricated part 1. As shown in fig. 4, the wall-attached member 2 comprises a guide support 4 and a lifting hanging seat, one end of the guide support 4 is connected with a guide rail 6 of the protection platform 3 in a sliding manner through a guide wheel 5, the other end of the guide support is connected with the prefabricated wall body through a wall penetrating bolt, a top support 7 is arranged on the upper side of one end, close to the guide rail 6, of the guide support 4, a falling protector 8 is arranged on the lower side of the guide support, and the guide support 4, the top support 7 and the falling protector 8 are all in the prior art. The lifting support is attached to the prefabricated part 1 by two through-wall bolts.
The protection platform 3 is an attached lifting scaffold, adopts an electric hoist (forward-hanging double-hook and reverse-hanging circulation) as lifting power, and is provided with an intelligent synchronous load control system.
Example one
As shown in fig. 2 and 3, the prefabricated part 1 is a prefabricated wall I10 with a flat window 9, as shown in fig. 3, (a) before lifting; (B) lifting preparation, namely pre-installing the wall attaching piece 2 on the prefabricated wall I10 at the lowest end on a next prefabricated wall I10, and hoisting the prefabricated part 1 to an installation position by using a tower crane for the next prefabricated wall I10 provided with the wall attaching piece 2; (C) during the promotion, protection platform 3 promotes along attaching wall spare 2, has 3 at least attaching wall spare 2 to play the guide effect to protection platform 3 in the promotion operating mode, (D) promote the back, and protection platform 3 promotes to be in the service behavior after the settlement position, and at least 4 attach wall spare 2 play the direction support to protection platform 3 in the service behavior, carry out the installation of next prefabricated wall body I10.
Example two
This embodiment is substantially the same as the first embodiment, except that: as shown in fig. 5 and 6, the prefabricated part 1 is provided with a prefabricated shear wall 11, and in the step (1), two wall attaching parts 2 are respectively pre-installed on an upper beam and a lower beam of the prefabricated shear wall 11.
EXAMPLE III
This embodiment is substantially the same as the first embodiment, except that: as shown in fig. 7-9, the prefabricated component 1 is a prefabricated wall body ii 13 with a bay window 12, the two wall attaching members 2 are respectively located on the prefabricated wall body ii 13 at the upper and lower sides of the bay window 12, and the two wall attaching members 2 are connected through a diagonal draw bar 15. The one end that guide support 4 kept away from guide rail 6 links to each other with horizontal pole 14, and horizontal pole 14 links to each other through the wall bolt with II 13 prefabricated wall bodies, and II 13 one end downside of keeping away from protection platform 3 of prefabricated wall bodies are provided with connecting plate 16, and horizontal pole 14 of downside links to each other with II 13 prefabricated wall bodies and connecting plate 16 through the wall bolt, and the upper end of diagonal draw bar 15 links to each other with the guide support 4 of upside, and the lower extreme slope links to each other with connecting plate 16 downwards.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A construction method of a lifting protection platform for an assembly type building is characterized by comprising the following steps: the method comprises the following steps:
(1) pre-installing two wall attaching pieces (2) on the prefabricated part (1), and then hoisting the prefabricated part (1) to an installation position by using a tower crane;
(2) the protection platform (3) is lifted along the wall attaching pieces (2), at least 3 wall attaching pieces (2) play a role in guiding the protection platform (3) in the lifting working condition, the protection platform (3) is in the use working condition after being lifted to the set position, at least 4 wall attaching pieces (2) play a role in guiding and supporting the protection platform (3) in the use working condition, the prefabricated part (1) is fixed under the protection of the protection platform (3), and then the wall attaching pieces (2) on the prefabricated part (1) at the lowest layer of the protection platform (3) are disassembled;
(3) pre-mounting the wall attaching piece (2) detached in the step (2) on the next prefabricated part (1), and repeating the steps (1) and (2);
in the step (1), two wall attaching pieces (2) are pre-installed on the prefabricated part (1), and the two wall attaching pieces (2) are respectively positioned on an upper beam and a lower beam of the prefabricated part (1);
the wall attaching piece (2) comprises a guide support (4), one end of the guide support (4) is connected with a guide rail (6) of the protection platform (3) in a sliding mode through a guide wheel (5), the other end of the guide support is connected with the prefabricated wall body through a wall penetrating bolt, a top support (7) is arranged on the upper side of one end, close to the guide rail (6), of the guide support (4), and a falling protector (8) is arranged on the lower side of the guide support.
2. The construction method of the elevating protection platform for prefabricated buildings according to claim 1, characterized in that: in the step (2), the protection height of the protection platform (3) is 2-3 layers of standard floor height.
3. The construction method of the elevating protection platform for prefabricated buildings according to claim 1, characterized in that: the prefabricated component (1) is a prefabricated wall body II (13) with a bay window (12), the two wall attaching pieces (2) are respectively positioned on the upper side and the lower side of the bay window (12), and the two wall attaching pieces (2) are connected through a diagonal draw bar (15).
4. The construction method of the elevating protection platform for prefabricated buildings according to claim 1 or 2, characterized in that: the prefabricated component (1) is a prefabricated wall body I (10) or a prefabricated shear wall (11) with a flat window (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464584.XA CN112523520B (en) | 2020-12-12 | 2020-12-12 | Construction method of lifting protection platform for prefabricated building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464584.XA CN112523520B (en) | 2020-12-12 | 2020-12-12 | Construction method of lifting protection platform for prefabricated building |
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| CN112523520A CN112523520A (en) | 2021-03-19 |
| CN112523520B true CN112523520B (en) | 2022-05-17 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113323368A (en) * | 2021-04-21 | 2021-08-31 | 成都嘉泽正达科技有限公司 | Lifting construction method for external protection hanging frame of assembled building |
| CN114165045A (en) * | 2021-12-20 | 2022-03-11 | 广东博昇建筑科技有限公司 | Safety protection frame and construction method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2218221Y (en) * | 1995-03-22 | 1996-01-24 | 王全志 | Hydraulic propulsion lifting scaffold |
| DE102005030335A1 (en) * | 2005-06-29 | 2007-01-04 | Peri Gmbh | Climbing cylinder of a self-climbing formwork |
| CN201826516U (en) * | 2010-10-28 | 2011-05-11 | 崔玉平 | Novel attached lifting scaffold |
| CN205000632U9 (en) * | 2015-07-07 | 2016-07-20 | 北京星河人施工技术有限责任公司 | From jumping formwork job platform |
| CN107419894B (en) * | 2017-06-21 | 2019-11-08 | 河北盛卓建筑设备制造有限公司 | Adhesion type lifting type aluminium alloy scaffold |
| CN111236613A (en) * | 2020-02-16 | 2020-06-05 | 河南中之正工程技术研究院有限公司 | Protection platform for building construction and use method thereof |
| CN211873925U (en) * | 2020-03-13 | 2020-11-06 | 北京市建筑工程研究院有限责任公司 | Assembled construction is with promotion formula outer protection system |
| CN111456527A (en) * | 2020-04-13 | 2020-07-28 | 上海建工二建集团有限公司 | External hanging type integral lifting enclosure system |
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