CN111424967A - Construction method of high-altitude ring beam cantilever structure - Google Patents
Construction method of high-altitude ring beam cantilever structure Download PDFInfo
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- CN111424967A CN111424967A CN202010343007.9A CN202010343007A CN111424967A CN 111424967 A CN111424967 A CN 111424967A CN 202010343007 A CN202010343007 A CN 202010343007A CN 111424967 A CN111424967 A CN 111424967A
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- ring beam
- construction method
- beams
- hanging basket
- cantilever structure
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 238000009415 formwork Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 11
- 230000009194 climbing Effects 0.000 claims abstract description 8
- 238000004873 anchoring Methods 0.000 claims abstract description 5
- 239000004567 concrete Substances 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 12
- 239000011150 reinforced concrete Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Images
Classifications
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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
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
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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
-
- 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
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
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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
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
-
- 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
- E04G5/16—Struts or stiffening rods, e.g. diagonal rods
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Movable Scaffolding (AREA)
Abstract
The invention discloses a construction method of a high-altitude ring beam cantilever structure, which comprises the following steps of: constructing a slip form to 36.75m, and embedding embedded parts and anchoring steel bars; sliding the platform, reinforcing the climbing rod, and removing the sliding formwork; mounting a main beam and an inclined strut by using a hanging basket under the sliding formwork platform; removing the slip form platform support tie rods at corresponding positions, laying secondary beams, welding the secondary beams to the main beams, and laying battens and templates; erecting a ring beam scaffold upright rod on the main beam, erecting a scaffold, and hanging a large-eye safety net; binding ring beam steel bars, installing templates, installing warehouse top embedded parts and bolts, and pouring concrete. According to the invention, the main beams are laid at the bottoms of the ring beams at certain intervals according to the load of the upper structure, the secondary beams are laid on the channel steel of the main beams, the inclined struts of the channel steel are added at the lower parts of the main beams to form a steel structure tripod, all the load of the upper cantilever ring beams is born, and a hoop made of round steel is fixed on the inclined struts to consolidate the stability of the inclined struts.
Description
Technical Field
The invention relates to a construction method of a high-altitude ring beam cantilever structure, and belongs to the field of ring beam construction processes of high-altitude buildings.
Background
In modern industrial buildings, as the production process is more advanced, a large number of high-altitude overhanging reinforced concrete ring beams exist, and the reinforced concrete is made of the reinforced concreteNot only is the height very high, but the mass is also particularly large. For example, in the engineering project of the sand YAMAMA cement plant, the diameter of an ultra-large clinker silo reaches 50m, the height reaches 38.69m, a reinforced concrete ring beam with the width of 1.5m and the height of 1.6m is arranged at the position with the height of 37.09m, and the cantilever length is 1000 mm. Because the overhanging load of the ring beam is large, the self weight of the concrete reaches 45Kn/m2(ii) a Meanwhile, the overhanging width of the beam greatly exceeds the clearance distance between the sliding formwork portal upright post and the cylinder wall, so that the conventional sliding formwork platform cannot be used as a supporting structure of the ring beam, and a supporting structure must be additionally designed.
Disclosure of Invention
In order to solve the problems of large overhanging load and difficult construction of the ring beam, the embodiment of the invention provides a construction method of a high-altitude ring beam overhanging structure, which ensures the construction safety and the engineering quality, greatly saves the construction fund and shortens the construction period.
To achieve the purpose, the embodiment of the invention provides the following technical scheme:
a construction method of a high-altitude ring beam cantilever structure is sequentially constructed according to the following procedures:
the method comprises the following steps: constructing a slip form to 36.75m, and embedding embedded parts and anchoring steel bars;
step two: sliding the platform, reinforcing the climbing rod, and removing the sliding formwork;
step three: mounting a main beam and an inclined strut by using a hanging basket under the sliding formwork platform;
step four: removing the slip form platform support tie rods at corresponding positions, laying secondary beams, welding the secondary beams to the main beams, and laying battens and templates;
step five: erecting a ring beam scaffold upright rod on the main beam, erecting a scaffold, and hanging a large-eye safety net;
step six: binding ring beam steel bars, installing templates, installing warehouse top embedded parts and bolts, and pouring concrete.
Furthermore, in the step one, the anchor bars are welded with the channel steel, the diameter of each anchor bar is 25mm, an embedded part is embedded at the position of 35.29m, and the height of a welding line of the embedded part is 7 mm.
Further, in the third step, the height of the welding seam between the inclined support and the main beam is 7 mm.
And further, in the fifth step, the vertical rods are welded with the main beam, and the gangway is erected on the scaffold.
Furthermore, in the third step, the diameter of the basket main frame is 25mm, the diameter of the transverse connecting steel bar is 14mm, a formwork is paved at the bottom of the basket, and the diameter of the upper railing of the basket is 15 mm.
Further, a tower crane is used for hanging the hanging basket, the hanging basket is hung at the roots of two adjacent climbing rods, the fastening piece is locked at the upper part of the connecting point, when the hanging basket moves, the fastening piece is unfastened, the hanging basket is hung by the tower crane and lifted, and the hanging basket moves to the next span.
Furthermore, the gap of the main beam is sealed by a first batten and a first template.
Further, still include the clamp, the clamp is the round steel, and the clamp is fixed on the bracing and is located the splice below of bracing and girder.
Compared with the prior art, the invention has the beneficial effects and remarkable progresses that:
according to the construction method provided by the embodiment of the invention, the main beams are laid at the bottom of the ring beam according to the upper structural load at certain intervals, the secondary beams are laid on the channel steel of the main beams, the inclined strut of the channel steel is added at the lower part of the main beams to form a steel structure tripod and bear all the load of the upper cantilever ring beam, and a hoop made of round steel is fixed on the inclined strut to consolidate the stability of the inclined strut.
Drawings
To more clearly illustrate the technical solution of the present invention, the drawings required for the embodiment of the present invention will be briefly described below.
It should be apparent that the drawings in the following description are only drawings of some embodiments of the invention, and that other drawings can be obtained by those skilled in the art without inventive exercise, and the other drawings also belong to the drawings required by the embodiments of the invention.
FIG. 1 is a cross-sectional view of a ring beam support according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of a basket according to an embodiment of the present invention;
FIG. 3 is a schematic view of processing of a gap and a hanging mold at a main beam according to an embodiment of the present invention;
FIG. 4 is a schematic view of the installation of the main beam and the diagonal braces according to the embodiment of the invention;
FIG. 5 is a schematic view of a secondary beam and form installation according to an embodiment of the present invention;
fig. 6 is a schematic diagram of scaffold erection according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions, advantageous effects and significant progress of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings provided in the embodiments of the present invention.
It is to be understood that all of the described embodiments are merely some, and not all, embodiments of the invention; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first", "second", and "third" (if present) and the like in the description and claims of the present invention and the accompanying drawings of the embodiments of the present invention are used only for distinguishing different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
It is to be understood that:
in the description of the embodiments of the present invention, the terms "upper", "lower", "top", "bottom", and other indicative orientations or positions are only used for describing the orientations or positional relationships based on the embodiments of the present invention and are used for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the devices or elements described must have a specific orientation, a specific orientation configuration and operation, and therefore, the present invention should not be construed as being limited thereto.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, movably connected, or integrated; either directly or indirectly through intervening media, intangible signal, or even optical, communication between two elements, or an interaction between two elements, unless expressly limited otherwise.
The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be further noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
The technical means of the present invention will be described in detail below with specific examples.
A construction method of a high-altitude ring beam cantilever structure is sequentially constructed according to the following procedures:
firstly, preparing construction materials, including channel steel blanking, embedded part processing and reinforcing steel bar anchoring.
The method comprises the following steps: slip-form construction is carried out till 36.75m, and embedded parts 1 and anchoring steel bars 2 are embedded;
the size of the embedded part is 300mm × 200mm × 100mm,
step two: a sliding platform, a reinforcing climbing rod 3 and a sliding formwork are removed, and the climbing rod is arranged on the cylinder wall 13;
step three: mounting a main beam 5 and an inclined strut 6 under the slip form platform by using a hanging basket 4;
step four: removing the supporting tie rods of the sliding mode platform at the corresponding positions, laying the secondary beam 7, welding the secondary beam 7 to the main beam 5, and laying the battens 8 and the template 9;
step five: erecting a ring beam scaffold upright stanchion 101 on the main beam 5, erecting a scaffold 10 and hanging a large-eye safety net at the same time;
step six: binding ring beam steel bars, installing templates, installing warehouse top embedded parts and bolts, and pouring concrete.
In one embodiment, the number of embedded parts is 114, the number of 10# channel steel is 132, and the number of 10# channel steel is used for the diagonal bracing and the main beam.
In one embodiment of the invention, in the step one, the anchor bars are welded with the channel steel, the diameter of the anchor bars is 25mm, embedded parts are embedded at 35.29m positions, and the height of welding seams of the embedded parts is 7 mm.
In one embodiment of the invention, in step three, the height of the welding seam between the diagonal brace and the main beam is 7 mm.
In step five, the vertical rods are welded with the main beam, and the gangway 11 is erected on the scaffold.
In one embodiment of the invention, in the third step, the basket main frame 41 uses steel bars with the diameter of 25mm, the transverse connecting steel bars 4 of the basket have the diameter of 14mm, the bottom of the basket is paved with a template, and the upper railing 43 of the basket uses steel bars with the diameter of 15 mm.
2 universal wheels are arranged at the bottom of the hanging basket, so that the hanging basket can be moved conveniently.
In one embodiment of the invention, a tower crane is used for hanging the hanging basket, the hanging basket is hung at the root parts of two adjacent climbing rods 3, the fastener is locked at the upper part of the connecting point, when the hanging basket moves, the fastener is unlocked, the hanging basket is hung by the tower crane and lifted, and the hanging basket moves to the next span.
In one embodiment of the invention, the gap of the main beam is sealed by using a batten I14 and a formwork I15. The vertical back square steel bars 16 are welded with the side faces of the channel steel, and the horizontal back square steel bars 17 are welded with the vertical back square steel bars 16. The horizontal back square bar 17 is packed using wooden wedges 18.
In an embodiment of the invention, the main beam structure further comprises a hoop 12, the hoop 12 is made of round steel, and the hoop 12 is fixed on the inclined strut and is positioned below the welding position of the inclined strut and the main beam.
The invention can simplify the construction process, improve the construction efficiency, reduce the cost and increase the safety factor.
During the description of the above description:
the description of the terms "this embodiment," "an embodiment of the invention," "as shown at … …," "further improved technical solution," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention; in this specification, the schematic representations of the terms used above are not necessarily for the same embodiment or example, and the particular features, structures, materials, or characteristics described, etc., may be combined or brought together in any suitable manner in any one or more embodiments or examples; furthermore, those of ordinary skill in the art may combine or combine features of different embodiments or examples and features of different embodiments or examples described in this specification without undue conflict.
Finally, it should be noted that:
the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same;
although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the embodiments of the present invention.
Claims (8)
1. A construction method of a high-altitude ring beam cantilever structure is characterized by comprising the following steps of:
the method comprises the following steps: constructing a slip form to 36.75m, and embedding embedded parts and anchoring steel bars;
step two: sliding the platform, reinforcing the climbing rod, and removing the sliding formwork;
step three: mounting a main beam and an inclined strut by using a hanging basket under the sliding formwork platform;
step four: removing the slip form platform support tie rods at corresponding positions, laying secondary beams, welding the secondary beams to the main beams, and laying battens and templates;
step five: erecting a ring beam scaffold upright rod on the main beam, erecting a scaffold, and hanging a large-eye safety net;
step six: binding ring beam steel bars, installing templates, installing warehouse top embedded parts and bolts, and pouring concrete.
2. The construction method of the high-altitude ring beam cantilever structure as claimed in claim 1, wherein:
in the first step, the anchor bars are welded with the channel steel, the diameter of each anchor bar is 25mm, embedded parts are embedded at the positions of 35.29m, and the height of welding seams of the embedded parts is 7 mm.
3. The construction method of the high-altitude ring beam cantilever structure as claimed in claim 1, wherein: in the third step, the height of the welding seam between the inclined strut and the main beam is 7 mm.
4. The construction method of the high-altitude ring beam cantilever structure as claimed in claim 1, wherein: and in the fifth step, the upright posts are welded with the main beam, and the gangway is erected on the scaffold.
5. The construction method of the high-altitude ring beam cantilever structure as claimed in claim 1, wherein: in the third step, the diameter of the hanging basket main frame is 25mm steel bars, the diameter of the transverse connecting steel bars is 14mm, a formwork is paved at the bottom of the hanging basket, and the diameter of the rails at the upper part of the hanging basket is 15mm steel bars.
6. The construction method of the high-altitude ring beam cantilever structure as claimed in claim 5, wherein: the hanging basket is hung at the roots of two adjacent climbing rods by using a tower crane, the hanging basket is locked at the upper part of the connecting point by using a fastener, and when the hanging basket moves, the fastener is unfastened, and the hanging basket is hung by using the tower crane to lift and move to the next span.
7. The construction method of the high-altitude ring beam cantilever structure as claimed in claim 1, wherein: the gap of the main beam is sealed by a first batten and a first template.
8. The construction method of the high-altitude ring beam cantilever structure as claimed in claim 1, wherein: still include the clamp, the clamp is the round steel, and the clamp is fixed on the bracing and is located the splice below of bracing and girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010343007.9A CN111424967A (en) | 2020-04-27 | 2020-04-27 | Construction method of high-altitude ring beam cantilever structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010343007.9A CN111424967A (en) | 2020-04-27 | 2020-04-27 | Construction method of high-altitude ring beam cantilever structure |
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| CN111424967A true CN111424967A (en) | 2020-07-17 |
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| CN202010343007.9A Pending CN111424967A (en) | 2020-04-27 | 2020-04-27 | Construction method of high-altitude ring beam cantilever structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523100A (en) * | 2020-12-09 | 2021-03-19 | 中冶京诚工程技术有限公司 | Template supporting structure of overhead concrete cantilever beam |
| CN113006449A (en) * | 2021-03-11 | 2021-06-22 | 常州第一建筑集团有限公司 | Construction method and structure for erecting shallow round bin support cornice support by using slip form platform |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523100A (en) * | 2020-12-09 | 2021-03-19 | 中冶京诚工程技术有限公司 | Template supporting structure of overhead concrete cantilever beam |
| CN113006449A (en) * | 2021-03-11 | 2021-06-22 | 常州第一建筑集团有限公司 | Construction method and structure for erecting shallow round bin support cornice support by using slip form platform |
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Application publication date: 20200717 |