CN112459235A - Formwork-supporting-free construction method for thin-wall special-shaped building - Google Patents
Formwork-supporting-free construction method for thin-wall special-shaped building Download PDFInfo
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- CN112459235A CN112459235A CN202011335629.3A CN202011335629A CN112459235A CN 112459235 A CN112459235 A CN 112459235A CN 202011335629 A CN202011335629 A CN 202011335629A CN 112459235 A CN112459235 A CN 112459235A
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
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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
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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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B2001/0053—Buildings characterised by their shape or layout grid
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Abstract
The invention provides a formwork-erecting-free construction method for a thin-wall special-shaped building, and relates to the technical field of building construction. The formwork-erecting-free construction method for the thin-wall special-shaped building comprises the following steps of: s1, modeling customization: carry out the prefabrication of special construction steel skeleton according to building modeling to according to the pre-buried rag bolt of construction drawing, build the scaffold frame and carry out assembling of steel skeleton, and form the reinforcing bar net at the orderly welded steel bar between the steel skeleton surface of building the completion, S2, rule ligature: and covering and binding the supporting net on the surface of the steel bar net welded in the S1 according to the actual clamping angle between the steel skeleton and the ground. The formwork-supporting-free construction method for the thin-wall special-shaped building solves the problems that a special-shaped structure formwork system is high in manufacturing cost and can not be rotated, simultaneously ensures the appearance effect of the curved surface, improves the construction efficiency, accelerates the field construction progress, reduces the project construction cost, is low in implementation difficulty, and can be operated by muddy water workers after being trained simply.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a formwork-free construction method for a thin-wall special-shaped building.
Background
The building is a general term of buildings and structures, is an artificial environment created by people in order to meet the needs of social life by utilizing the grasped substance technical means and applying certain scientific laws, wind and water concepts and aesthetic rules, has two meanings of broad sense and narrow sense, the broad sense building refers to all things formed by artificial buildings, including houses and structures, the narrow sense building refers to houses, not including structures, the houses refer to spaces with foundations, walls, tops, doors and windows, can shield wind and rain, is used for people to live in, work, study, entertainment, store articles or carry out other activities, has become an important component part of GDP in many small and medium-sized cities under the guidance of sustainable development concept, under the background, special-shaped buildings (structures) integrating local culture features are more popular and become popular and are popular as many-network red card points, in order to control the dead weight, the special-shaped buildings are generally of thin-wall shell structures, and are complex and variable in shape and high in construction difficulty. The traditional construction method is that a special template is customized firstly, curves are replaced by small sections of broken lines, then the templates are spliced and reinforced, and finally concrete is poured into the templates.
Disclosure of Invention
The invention aims to provide a formwork-supporting-free construction method for a thin-wall special-shaped building, which can effectively reduce the use of special-shaped building construction materials, reduce the actual construction cost, effectively reduce the actual construction difficulty, avoid the use of a traditional formwork supporting mode, better realize the building curve modeling, further effectively accelerate the field construction process and effectively improve the actual construction efficiency.
In order to achieve the purpose, the invention is realized by the following technical scheme: a formwork-supporting-free construction method for a thin-wall special-shaped building comprises the following steps:
s1, modeling customization: the method comprises the steps of prefabricating a special structure steel skeleton according to a building model, pre-embedding foundation bolts according to construction drawings, building a scaffold to assemble the steel skeleton, and orderly welding reinforcing steel bars between the surfaces of the built steel skeleton to form a reinforcing steel bar mesh.
S2, regularly binding: and covering and binding the supporting net on the surface of the steel bar net welded in the S1 according to the actual clamping angle between the steel skeleton and the ground.
S3, blending: the anti-crack mortar material is put into stirring equipment according to a certain proportion and is uniformly stirred for standby.
S4, establishing a base scraping batch: and (4) uniformly coating the anti-crack mortar for later use in the step S3 on the surface of the support net in the step S2, and spraying water for curing after the anti-crack mortar is solidified to form a subbase.
S5, curing: and (4) continuously scraping anti-crack mortar on the surface of the subbase layer prepared in the step (S4) in batches, wherein the thickness of the anti-crack mortar scraped each time is 1.8-2 cm, until the anti-crack mortar completely wraps the surface layer supporting net, then performing compaction and finishing treatment on the anti-crack mortar, and performing intermittent water spraying maintenance for 14-15 days after the anti-crack mortar is solidified.
S6, waterproofing treatment: and (3) after the solidification strength of the anti-crack mortar reaches the maximum value in S5, dismantling the scaffold, smearing cement-based waterproof paint on the surface of the outer anti-crack mortar, performing plastering treatment on the surface of the inner anti-crack mortar, and performing surface water spraying maintenance treatment.
S7, constructing a special-shaped appearance: and (5) after the structural strength in the S6 reaches the maximum, deeply depicting the special-shaped lines of the building by using the anti-crack mortar, and finishing the building construction after the anti-crack mortar is cured and solidified.
As a further scheme of the invention: according to the operation step in S1, the orderly welded steel bars are subjected to integral plasticity of the steel skeleton according to the design drawing by controlling the welding density of the steel bars.
As a further scheme of the invention: according to the operation step in S2, the support net is a hot-dip galvanized net with 8 meshes.
As a further scheme of the invention: according to the operation step in S2, the actual angle between the steel skeleton and the ground is an angle formed between a longitudinal tangent line on the surface of the steel skeleton and the ground.
As a further scheme of the invention: when the included angle is acute angle or right angle, will support the net ligature in the steel skeleton inboard, when the included angle is the obtuse angle, will support the net ligature in the steel skeleton outside.
As a further scheme of the invention: according to the operation step in S3, the anti-crack mortar material comprises mortar stock solution, glass short fibers and a micro-expansion agent.
As a further scheme of the invention: the mortar stock solution is a mixture of 42.5 pozzolan cement, sand and glue solution.
As a further scheme of the invention: the glue solution is a mixed stirring object of seaweed powder and water, and the mixing ratio of the seaweed powder to the water is 1: 160.
as a further scheme of the invention: the seaweed powder and the water are mixed and stirred for 3.5-4.5 h.
As a further scheme of the invention: the mixing mass ratio of the 42.5 volcanic ash cement, the sand and the glue solution is 1: 2.5: 0.5.
the invention provides a formwork-supporting-free construction method for a thin-wall special-shaped building. The method has the following beneficial effects:
the formwork-supporting-free construction method for the thin-wall special-shaped building solves the problems that a special-shaped structure formwork system is high in manufacturing cost and can not be rotated, simultaneously ensures the appearance effect of the curved surface, improves the construction efficiency, accelerates the field construction progress, reduces the project construction cost, is low in implementation difficulty, and can be operated by muddy water workers through simple training, so that the actual construction progress is effectively accelerated.
Drawings
FIG. 1 is a flow chart of the present invention;
Detailed Description
The invention is illustrated below with reference to specific examples. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention in any way.
Embodiment 1, a formwork-erecting-free construction method for a thin-wall special-shaped building, comprising the following steps: step one, modeling customization: carry out the prefabrication of special construction steel skeleton according to architectural modeling to according to the pre-buried rag bolt of construction drawing, build the scaffold frame and carry out assembling of steel skeleton, and orderly welding reinforcement forms the reinforcing bar net between the steel skeleton surface of building the completion, orderly welding reinforcement carries out the whole plasticity of steel skeleton according to the design drawing through control reinforcement welding density promptly, can effectively avoid the use of template through this kind of mode, and then effectively avoid the processing of template, and then effectively reduce construction material's use, avoid the loss of more material simultaneously, and then effectively reduce actual manufacturing cost, step two, law ligature: according to steel skeleton and the actual contained angle in ground to the reinforcing bar net surface covering ligature supporting network that the welding was accomplished in step one, the supporting network is 8 mesh hot-galvanize nets, steel skeleton and the actual contained angle in ground refer to the contained angle that forms between certain vertical tangent line in steel skeleton surface and the ground, when the contained angle is acute angle or right angle, with the supporting network ligature in the steel skeleton inboard, when the contained angle is the obtuse angle, with the supporting network ligature in the rigid skeleton outside, can make things convenient for the attached packing of anti-crack mortar through this kind of mode, and then can have the different appearance structure of effective formation, and then avoided the use of template, can effectively form specific appearance structure simultaneously, step three, batching modulation: putting an anti-crack mortar material into stirring equipment according to a certain proportion, uniformly stirring for later use, wherein the anti-crack mortar material comprises a mortar stock solution, glass short fibers and a micro-expanding agent, the mortar stock solution is a mixture of 42.5 volcanic ash cement, sand and a glue solution, the glue solution is a mixed stirring object of seaweed powder and water, and the mixing proportion of the seaweed powder and the water is 1: 160, the mixing and stirring time of the seaweed powder and the water is 3.5-4.5 h, and the mixing mass ratio of the 42.5 volcanic ash cement to the sand to the glue solution is 1: 2.5: 0.5, the practical use strength of the anti-crack mortar can be effectively improved by the method, meanwhile, the adhesion degree of the anti-crack mortar is effectively improved, and the step four is that the base is built to scrape the mortar: evenly paint the standby anti-crack mortar in the third step to the surface of the supporting net in the second step, spray water for maintenance after the anti-crack mortar is solidified to form a subbase layer, provide layer-by-layer addition of the anti-crack mortar through the mode, further realize the integral adhesion of the building, further enable the building curve modeling to be realized more easily, simultaneously prevent secondary decoration construction from increasing the use cost and the construction time, and perform the maintenance treatment: scraping anti-crack mortar on the surface of the subbase layer prepared in the fourth step for several times, wherein the thickness of the scraped anti-crack mortar is 1.8-2 cm each time until the anti-crack mortar completely wraps the surface layer supporting net, compacting and polishing the anti-crack mortar, and spraying water for curing for 14-15 days at intervals after the anti-crack mortar is solidified, so that the gap inside the anti-crack mortar is effectively prevented, the strength of the building structure is improved, meanwhile, the construction time can be effectively reduced, the whole construction process is accelerated, and the sixth step is waterproof treatment: after the solidification strength of the anti-crack mortar reaches the maximum value in the fifth step, the scaffold is dismantled, cement-based waterproof paint is coated on the surface of the anti-crack mortar on the outer side, plastering treatment is carried out on the surface of the anti-crack mortar on the inner side, and surface water spraying maintenance treatment is carried out, so that the anti-crack mortar can reach the maximum strength, the actual structural strength of the building is effectively improved, and the seventh step is carried out to construct a special shape: after the structural strength reaches the maximum in the sixth step, the anti-crack mortar is used for deeply depicting the special-shaped lines of the building, and the building construction is completed after the anti-crack mortar is cured and solidified.
When the method is used, the problems that a special-shaped structure template system is high in manufacturing cost and can not be circulated are effectively solved, the appearance effect of the curved surface modeling is ensured, the construction efficiency is improved, the site construction progress is accelerated, the project construction cost is reduced, the implementation difficulty is low, muddy water workers can operate through simple training, and the actual construction process is effectively accelerated.
To further illustrate the beneficial effects of the present invention, the inventors have compared with the conventional process, as detailed in table 1:
table 1 comparative data
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. A formwork-supporting-free construction method for a thin-wall special-shaped building is characterized by comprising the following steps:
s1, modeling customization: prefabricating a special structural steel skeleton according to a building shape, embedding foundation bolts according to a construction drawing, building a scaffold for splicing the steel skeleton, and orderly welding reinforcing steel bars between the surfaces of the built steel skeleton to form a reinforcing mesh;
s2, regularly binding: covering and binding a supporting net on the surface of the steel bar net welded in the S1 according to the actual included angle of the steel skeleton and the ground;
s3, blending: putting the anti-crack mortar material into stirring equipment according to a certain proportion, and uniformly stirring for later use;
s4, establishing a base scraping batch: uniformly coating the anti-crack mortar for later use in the step S3 on the surface of the supporting net in the step S2, and spraying water for curing after the anti-crack mortar is solidified to form a subbase;
s5, curing: continuously scraping anti-crack mortar on the surface of the subbase layer prepared in the step S4 in batches, wherein the thickness of the anti-crack mortar scraped each time is 1.8-2 cm, until the anti-crack mortar completely wraps the surface layer supporting net, then performing compaction and finishing treatment on the anti-crack mortar, and performing intermittent water spraying maintenance for 14-15 days after the anti-crack mortar is solidified;
s6, waterproofing treatment: after the solidification strength of the anti-crack mortar reaches the maximum value in S5, dismantling the scaffold, smearing cement-based waterproof paint on the surface of the outer anti-crack mortar, performing plastering treatment on the surface of the inner anti-crack mortar, and performing surface water spraying maintenance treatment;
s7, constructing a special-shaped appearance: and (5) after the structural strength in the S6 reaches the maximum, deeply depicting the special-shaped lines of the building by using the anti-crack mortar, and finishing the building construction after the anti-crack mortar is cured and solidified.
2. The formwork-free construction method for the thin-walled special-shaped building as claimed in claim 1, wherein the orderly welded steel bars are integrally plastic-formed by controlling the welding density of the steel bars according to the design drawing according to the operation step of S1.
3. The formwork-free construction method for the thin-walled special-shaped building as claimed in claim 1, wherein the supporting net is a 8-mesh hot-galvanized net according to the operation step of S2.
4. The formwork-free construction method for the thin-walled special-shaped building as claimed in claim 3, wherein the actual included angle between the steel skeleton and the ground is the included angle formed between a longitudinal tangent line on the surface of the steel skeleton and the ground according to the operation procedure in S2.
5. The formwork-free construction method for the thin-wall special-shaped building as claimed in claim 4, wherein when the included angle is an acute angle or a right angle, the supporting net is bound to the inner side of the steel skeleton, and when the included angle is an obtuse angle, the supporting net is bound to the outer side of the steel skeleton.
6. The formwork-free construction method for the thin-walled special-shaped building as claimed in claim 1, wherein the anti-crack mortar material is mortar stock solution, glass short fiber and micro-expansion agent according to the operation step of S3.
7. The formwork-free construction method for the thin-wall special-shaped building according to claim 6, wherein the mortar stock solution is a mixture of 42.5 pozzolan cement, sand and glue solution.
8. The formwork-free construction method for the thin-wall special-shaped building as claimed in claim 7, wherein the glue solution is a mixed stirring object of seaweed powder and water, and the mixing ratio of the seaweed powder to the water is 1: 160.
9. the formwork-free construction method for the thin-wall special-shaped building as claimed in claim 8, wherein the mixing and stirring time of the seaweed meal and the water is 3.5-4.5 h.
10. The formwork-free construction method for the thin-wall special-shaped building according to claim 9, wherein the mixing mass ratio of the 42.5 volcanic ash cement, the sand and the glue solution is 1: 2.5: 0.5.
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| CN202011335629.3A CN112459235A (en) | 2020-11-25 | 2020-11-25 | Formwork-supporting-free construction method for thin-wall special-shaped building |
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| CN202011335629.3A CN112459235A (en) | 2020-11-25 | 2020-11-25 | Formwork-supporting-free construction method for thin-wall special-shaped building |
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Application publication date: 20210309 |