CN115233980B - Cantilever incremental structure arrangement construction method - Google Patents
Cantilever incremental structure arrangement construction method Download PDFInfo
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- CN115233980B CN115233980B CN202211007742.8A CN202211007742A CN115233980B CN 115233980 B CN115233980 B CN 115233980B CN 202211007742 A CN202211007742 A CN 202211007742A CN 115233980 B CN115233980 B CN 115233980B
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- stepping
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- lattice
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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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/06—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall
- E04G13/066—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for stairs, steps, cornices, balconies, or other parts corbelled out of the wall for overhangs
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/48—Supporting structures for shutterings or frames for floors or roofs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a construction method for arranging an overhanging incremental structure, which belongs to the field of fastener type scaffold engineering and comprises a one-layer stepping high-support formwork, a two-layer stepping high-support formwork, a three-layer stepping high-support formwork, vertical scissors supports, horizontal scissors supports, a cross support and the like, wherein the construction method comprises the following steps: combining the structural scaffold structural form, arranging a single independent stepping lattice support body in an incremental structural high formwork through a scissor support assembly, arranging the planes of the independent stepping lattice support bodies according to a spacing of not more than 10000mm, connecting the two independent stepping lattice support bodies by taking incremental cantilever plate edge scaffold upright posts as boundaries and adopting a vertical zigzag support for connection, arranging a vertical scissor support assembly around each independent stepping lattice support body, taking the upright posts of the incremental cantilever plate outer edge scaffold as boundaries in the middle, and arranging vertical scissor supports from top to bottom in the longitudinal direction of the independent stepping lattice support bodies; the invention forms an effective lattice body and enhances the stability of the frame body.
Description
Technical Field
The invention belongs to the field of fastener type scaffold engineering, and particularly relates to an overhanging incremental structure arrangement construction method.
Background
At present, in order to reach appearance facade effect in the building engineering, special public building, such as administrative service center, cultural museum, library etc. designer design molding is out of mind, show a large amount of reverse cone structures, the cantilever plate of upper strata is all wider than the cantilever plate of next floor, form visual sense, the aesthetic feeling, win market's approval, the structure support frame that mainly represents every layer of cantilever plate position in this kind of structure work progress is high formwork, in arranging scaffold frame scissors support subassembly and forming the lattice post and consolidate stability in-process, it is more messy to arrange, form effectual lattice body, the support body stability is relatively poor, the incident that causes is more, the construction experience in the past is: the high formwork scissor support assembly is arranged only according to the standard requirements, the reinforcing quantity is achieved, the high formwork scissor support assembly is not combined with the structural form, the stability is poor, the arrangement effect is poor, a large amount of manpower, material resources and financial resources are wasted, and the safety accidents bring about huge social influence and economic loss.
Disclosure of Invention
In order to solve the technical problems, the inventor obtains the technical scheme of the invention through practice and summary, and the invention discloses a cantilever incremental structure arrangement construction method which is characterized by comprising the following steps:
step one: after the incremental structural high-formwork frame is erected, a step lattice support body needs to be formed, the step lattice support body needs to be arranged from the end part of the frame body, if the incremental structural high-formwork frame is continuously annular, the incremental structural high-formwork frame is simultaneously arranged in two directions at the corners of the incremental structural high-formwork frame and used as the first step lattice support body, the two step lattice support bodies at the corners form 90 degrees, and then the incremental structural high-formwork frame is distributed and arranged towards the middle at intervals of not more than 10000 mm;
step two: the zigzag support or the scissor support assembly is arranged between the two step lattice supports, and vertically arranged according to the corresponding connecting line of the step end parts of the step lattice supports, so that the incremental structure high-formwork frame longitudinally and transversely forms a stable structure;
when each layer of stepping high formwork frame exceeds 8m, two adjacent stepping lattice supports are connected by a scissor support assembly;
step three: the scissors support assembly comprises vertical scissors supports and horizontal scissors supports, and the plane circumference of the stepping lattice support body is arranged by adopting the vertical scissors supports;
the middle is divided according to the upright posts of the first row of scaffolds outside each layer of incremental overhanging edges, and a scissor support assembly is longitudinally arranged on the periphery of the stepping lattice support body;
firstly arranging vertical scissor struts in a range, and then arranging continuous horizontal scissor struts on a scaffold floor sweeping rod layer according to square grids formed by the vertical scissor struts; finally, arranging horizontal scissor supports at the top ends of the stepping high-support frames corresponding to the horizontal scissor supports;
when each layer of step high-support frame exceeds 8m, a horizontal scissor support is added in the middle of the frame body corresponding to the bottom layer or the top layer horizontal scissor support in the middle of the step high-support frame, and the joint point or line of the vertical scissor support and the horizontal scissor support must fall on the upright rod of the same scaffold, so that dislocation connection is forbidden;
step four: the scissors support should be connected with the pole setting, and the overlap joint needs 3 steering fasteners to be connected, and 100mm is reserved to the end, and the scissors support contained angle should be between 45 ~ 60, and the root of vertical scissors support should be tightly with ground top.
The incremental structural high formwork formed by the method is a fastener type steel pipe, and consists of a layer of incremental structural high formwork, a layer of secondary incremental structural high formwork, a layer of tertiary incremental structural high formwork, vertical scissors supports, horizontal scissors supports, a cross support and the like, wherein an arrangement construction method is mainly provided for the arrangement of the scissors supports of the structure; then every independent lattice support body of marking time, the vertical scissors support is arranged to the border, and the centre is according to increasing the outer edge scaffold frame pole setting of cantilever plate as the boundary, arranges vertical scissors support from the top down in the vertical direction of independent lattice support body of marking time, and the high formwork lower part of increasing the structure sets up continuous horizontal scissors support according to the segmentation of vertical scissors support at the lattice support body of marking time, corresponds the setting at every layer high formwork top of marking time, has guaranteed like this that the setting thinking is clear, and the operating personnel sets up accurately to can guarantee that every independent lattice support body of marking time forms independent stability. When one or more layers of stepping high-support frames are erected to a height exceeding 8m or 20m, each layer of stepping high-support frames are separated in the above-mentioned scissors support arrangement system according to the specification, and horizontal scissors supports and part of the cross supports are added in the middle to be arranged into the scissors supports.
In a further technical scheme, the incremental structural high formwork frame at least comprises a one-layer stepping high formwork frame, a two-layer stepping high formwork frame and a three-layer stepping high formwork frame, and the one-layer stepping high formwork frame, the two-layer stepping high formwork frame and the three-layer stepping high formwork frame are sequentially and highly incremental.
In a further technical scheme, the top of the one-layer stepping high-count die carrier is provided with a one-layer incremental cantilever plate, the top of the two-layer stepping high-count die carrier is provided with a two-layer incremental cantilever plate, and the top of the three-layer stepping high-count die carrier is provided with a three-layer incremental cantilever plate.
Compared with the prior art, the invention can obtain the following technical effects:
according to the invention, the traditional lattice columns formed in the scaffold body through the arrangement of the scissors supports in a standard manner are changed, each lattice column is connected into a whole by adopting the cross supports or the scissors supports, the lattice columns are applied to the incremental structure cantilever plates, when the top ends of the independent lattice columns meet the height difference, the closed whole cannot be formed, so that the top ends of the independent lattice columns are easy to be unstable, when the independent square lattice columns and the independent square lattice columns meet the height difference by adopting the cross supports or the scissors supports, the sub-cross supports or the scissors supports between the independent square lattice columns cannot reach the top of the highest independent square lattice column, so that part of the independent square lattice columns have free ends and uneven stress, and the integral scaffold body is unstable, and the incremental structure cantilever arrangement construction method is adopted, and the standard square lattice columns are changed into the lattice support body, so that the hidden trouble of traditional erection is avoided, and the scaffold is safe, stable and reliable.
Compared with the existing construction process, the invention has the following advantages:
(1) The supporting body is arranged into the stepping lattice through the scissors support, transversely penetrates through the tangent plane of the whole incremental cantilever plate, is integrally closed, forms a stepping structure, is perpendicular to the overhanging incremental structure, can effectively resist the short side overturning force of the incremental structure high-support die carrier 1, and plays a role in stabilizing.
(2) The tread lattice support body transversely adjusts the tread width of each layer of tread high formwork according to the difference of the width of the incremental cantilever plate structures, the longitudinal width is 4000-6000 mm, the arrangement of the scissors is clear and clear, the erection process is simple and easy to understand, errors are not easy to occur in the erection process, acceptance reworking is avoided, labor cost is saved, and the quality and safety of the formwork are guaranteed.
The invention has the advantages of good stability of the whole structure, reduced occurrence of safety accidents, more important, and certain social and economic effects.
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, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention.
In the figure: 1. incremental structural high-count die carrier; 2. one layer of stepping high support mould frame; 3. two-layer stepping high-support formwork; 4. three-layer stepping high-count formwork; 5. a layer of incremental cantilever plates; 6. two layers of incremental cantilever plates; 7. three layers of incremental cantilever plates; 8. a cross brace; 9. vertical scissors support; 10. a horizontal scissors support; 11. a stepping lattice support.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The principles of the invention will be further described with reference to the drawings and specific examples.
As shown in fig. 1 and 2:
the overhanging incremental structure arrangement construction method comprises the following steps of:
step one: after the incremental structural high formwork rack 1 is erected, a step lattice support 11 needs to be formed, the step lattice support 11 needs to be arranged from the end part of the rack body, if the incremental structural high formwork rack 1 is continuously annular, the incremental structural high formwork rack 1 is simultaneously arranged in two directions at the corners of the incremental structural high formwork rack, the incremental structural high formwork rack is used as the first step lattice support 11, the two step lattice supports 11 at the corners form 90 degrees, and then the incremental structural high formwork rack is distributed and arranged towards the middle at intervals of not more than 10000 mm; the spacing modulus of the vertical pole pitch of the frame body is met; the vertical rod is a vertical upward rod as shown in fig. 2;
step two: the cross braces 8 or the scissor brace assemblies are arranged between the two step lattice supports 11, and the cross braces 8 or the scissor braces are vertically arranged according to the corresponding connecting lines of the step end parts of the step lattice supports 11 as boundaries, namely, a scaffold upright rod outside the edge of the incremental cantilever plate is used as a boundary, so that the incremental structural high-support formwork 1 forms a stable structure in the longitudinal and transverse directions;
when each layer of stepping high formwork frame exceeds 8m, two adjacent stepping lattice supports 11 are connected by a scissor support assembly;
step three: the scissors support assembly comprises a vertical scissors support 9 and a horizontal scissors support 10, and the plane circumference of the stepping lattice support body 11 is arranged by adopting the vertical scissors support 9;
the middle is divided according to the upright posts of the first row of scaffolds outside each layer of incremental overhanging edges, and a scissor support assembly is longitudinally arranged on the periphery of the stepping lattice support body 11;
firstly arranging vertical scissor struts 9 in the range, and then arranging continuous horizontal scissor struts 10 on a scaffold floor sweeping rod layer according to square grids formed by the vertical scissor struts 9; finally, arranging a horizontal scissor support 10 at the top end of the stepping high-support frame corresponding to the horizontal scissor support 10;
when each layer of step high-support frame exceeds 8m, a horizontal scissor support 10 is added in the middle of the frame body corresponding to the bottom layer or the top layer horizontal scissor support 10 in the middle of the step high-support frame, and the joint or line of the vertical scissor support 9 and the horizontal scissor support 10 must fall on the upright rod of the scaffold, so that dislocation connection is forbidden;
step four: the scissors support assembly should be connected with the pole setting, and the overlap joint needs 3 steering fasteners to be connected, and 100mm is reserved to the end, and the scissors support assembly contained angle should be between 45 ~ 60, and the root of vertical scissors support 9 should be tightly with ground top.
The incremental structural high formwork 1 formed by the method is a fastener type steel pipe, and consists of a layer of incremental structural high formwork 2, a layer of secondary incremental structural high formwork 3, a layer of tertiary incremental structural high formwork 4, a vertical scissor support 9, a horizontal scissor support 10, a cross support 8 and the like, wherein an arrangement construction method is mainly provided for the arrangement of the scissor support components of the structure, firstly, in combination with the structural form of the scaffold of the structure, an independent incremental structural lattice support 11 is formed in the incremental structural high formwork 1 through the arrangement of the scissor support components, the planes of the independent incremental structural lattice supports 11 are arranged according to the interval of not more than 10000mm, the two independent incremental structural lattice supports 11 are connected by adopting the cross support 8 in the longitudinal direction according to the vertical rods of the incremental cantilever plate edge scaffolds, and the stability of the whole incremental structural high formwork 1 is ensured; then every independent latticed supporter 11 of marking time, the vertical scissors support 9 is arranged to the border all around, in the middle according to the vertical from the top down of vertical scissors support 9 is arranged at the vertical from the top down of independent latticed supporter 11 of marking time in the middle of according to the outer edge scaffold pole setting of incremental cantilever plate, set up continuous horizontal scissors support 10 according to the segmentation of vertical scissors support 9 at latticed supporter 11 of marking time in the high formwork 1 lower part of incremental structure, set up at the top correspondence of every layer of high formwork 11 of marking time, guaranteed like this that the setting thinking is clear, the operating personnel sets up accurately, and can guarantee that every independent latticed supporter 11 of marking time forms independent stability. When one or more layers of stepping high-support frames are erected to a height exceeding 8m or 20m, each layer of stepping lattice support body 11 is separated in the above arrangement system of the scissor support components according to the specification, and the horizontal scissor support 10 and the cross support 8 are added in the middle to be arranged into the scissor support components.
The incremental structural high formwork 1 at least comprises a one-layer stepping high formwork 2, a two-layer stepping high formwork 3 and a three-layer stepping high formwork 4, and the one-layer stepping high formwork 2, the two-layer stepping high formwork 3 and the three-layer stepping high formwork 4 are sequentially increased in height.
The top setting of the high formwork 2 of one deck mark time installs the one deck and increases the cantilever plate 5, the top setting of the high formwork 3 of two deck mark time installs the two-layer and increases the cantilever plate 6, the top setting of the high formwork 4 of three deck mark time installs the three-layer and increases the cantilever plate 7.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (2)
1. The overhanging incremental structure arrangement construction method is characterized by comprising the following steps of:
step one: after the incremental structure high formwork frame is erected, forming a stepping lattice support body, wherein the stepping lattice support body is arranged from the end part of the frame body, if the incremental structure high formwork frame is continuously annular, independent stepping lattice support bodies are simultaneously arranged in two directions of the corner part of the incremental structure high formwork frame and serve as the first of the stepping lattice support bodies, the two stepping lattice support bodies at the corner part form 90 degrees, and then the stepping lattice support bodies are distributed and arranged towards the middle at intervals of not more than 10000 mm;
the incremental structural high formwork rack at least comprises a layer of stepping high formwork rack, a layer of stepping high formwork rack and a layer of stepping high formwork rack, wherein the layer of stepping high formwork rack, the layer of stepping high formwork rack and the layer of stepping high formwork rack are sequentially increased in height;
step two: the cross brace or the scissor brace component is arranged between the two step lattice supports, and the cross brace or the scissor brace is vertically arranged according to the corresponding connecting line of the step end of the step lattice support, so that the incremental structure high formwork frame longitudinally and transversely forms a stable structure;
when each layer of stepping high formwork frame exceeds 8m, two adjacent stepping lattice supports are connected by a scissor support assembly;
step three: the scissors support assembly comprises vertical scissors supports and horizontal scissors supports, and the vertical scissors supports are arranged around the plane of the stepping lattice support body;
the middle is divided according to the upright posts of the first row of scaffolds outside each layer of incremental overhanging edges, and a scissor support assembly is longitudinally arranged on the periphery of the stepping lattice support body;
firstly, arranging vertical scissor struts in upright posts of a first row of scaffolds, and then arranging continuous horizontal scissor struts on a floor sweeping rod layer of the scaffold according to grids formed by the vertical scissor struts; finally, arranging horizontal scissor supports at the top ends of the stepping high-support frames corresponding to the horizontal scissor supports;
when each layer of step high-support frame exceeds 8m, a horizontal scissor support is added in the middle of the frame body corresponding to the bottom layer or the top layer horizontal scissor support in the middle of the step high-support frame, and the joint point or line of the vertical scissor support and the horizontal scissor support falls on the upright rod of the same scaffold, so that dislocation connection is forbidden;
step four: the scissors support assembly is connected with the vertical rod, 3 lap joint steering fasteners are connected, 100mm is reserved at the end head, the included angle of the scissors support assembly is 45-60 degrees, and the root of the vertical scissors support is tightly propped against the ground.
2. The overhanging incremental structural arrangement construction method according to claim 1, characterized in that: the top of the one-layer stepping high-count die carrier is provided with a one-layer incremental cantilever plate, the top of the two-layer stepping high-count die carrier is provided with a two-layer incremental cantilever plate, and the top of the three-layer stepping high-count die carrier is provided with three-layer incremental cantilever plates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211007742.8A CN115233980B (en) | 2022-08-22 | 2022-08-22 | Cantilever incremental structure arrangement construction method |
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| CN202211007742.8A CN115233980B (en) | 2022-08-22 | 2022-08-22 | Cantilever incremental structure arrangement construction method |
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| CN115233980B true CN115233980B (en) | 2023-08-08 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6848221B1 (en) * | 2002-11-01 | 2005-02-01 | The Ruhlin Company | Overhang falsework |
| CN110424733A (en) * | 2019-06-28 | 2019-11-08 | 中国十七冶集团有限公司 | A kind of high-altitude long-span overhung exempts from floor-type support structure and its construction method |
| CN211257756U (en) * | 2019-10-16 | 2020-08-14 | 上海建工一建集团有限公司 | Progressive overhanging structure aiming at complex outer vertical surface modeling |
| CN113550578A (en) * | 2021-06-18 | 2021-10-26 | 中国五冶集团有限公司 | High-altitude overhanging structure formwork support and upper protection system construction method |
-
2022
- 2022-08-22 CN CN202211007742.8A patent/CN115233980B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6848221B1 (en) * | 2002-11-01 | 2005-02-01 | The Ruhlin Company | Overhang falsework |
| CN110424733A (en) * | 2019-06-28 | 2019-11-08 | 中国十七冶集团有限公司 | A kind of high-altitude long-span overhung exempts from floor-type support structure and its construction method |
| CN211257756U (en) * | 2019-10-16 | 2020-08-14 | 上海建工一建集团有限公司 | Progressive overhanging structure aiming at complex outer vertical surface modeling |
| CN113550578A (en) * | 2021-06-18 | 2021-10-26 | 中国五冶集团有限公司 | High-altitude overhanging structure formwork support and upper protection system construction method |
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