CN113585553A - EPS (expandable polystyrene) disassembly-free heat-insulation wall formwork framework with fireproof isolation belt and construction method - Google Patents
EPS (expandable polystyrene) disassembly-free heat-insulation wall formwork framework with fireproof isolation belt and construction method Download PDFInfo
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- CN113585553A CN113585553A CN202110850106.0A CN202110850106A CN113585553A CN 113585553 A CN113585553 A CN 113585553A CN 202110850106 A CN202110850106 A CN 202110850106A CN 113585553 A CN113585553 A CN 113585553A
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- 238000009415 formwork Methods 0.000 title claims abstract description 67
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- 229920006248 expandable polystyrene Polymers 0.000 title description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 74
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- 238000000034 method Methods 0.000 claims abstract description 10
- 238000004321 preservation Methods 0.000 claims description 29
- 230000003014 reinforcing effect Effects 0.000 claims description 28
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 24
- 239000004567 concrete Substances 0.000 claims description 24
- 239000000178 monomer Substances 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
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- 230000000694 effects Effects 0.000 abstract description 8
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
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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
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
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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
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8647—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties going through the forms
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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
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/26—Strutting means for wall parts; Supports or the like, e.g. for holding in position prefabricated walls
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- Architecture (AREA)
- Physics & Mathematics (AREA)
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- Mechanical Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention discloses an EPS disassembly-free heat-insulation wall formwork framework with a fireproof isolation belt and a construction method thereof, wherein the disassembly-free heat-insulation wall formwork framework comprises an inner leaf formwork and an outer leaf formwork, and the top of the outer leaf formwork is spliced with a heat-insulation plate of the fireproof isolation belt; the top of the inner leaf template is lapped with the floor slab template; the fireproof isolation strip heat insulation plate is fixed on the upper part of the steel bar ladder frame; the invention simplifies the construction steps, shortens the construction period and reduces the construction cost; the firmness among the reinforced concrete wall, the heat-insulating layer and the fireproof isolation belt can be improved, and the heat-insulating, energy-saving and fireproof effects are improved; the problems of complex process, long time consumption, low efficiency, high labor intensity, high safety risk and the like existing in on-site formwork supporting and formwork removing in the existing formwork pouring reinforced concrete construction can be solved.
Description
Technical Field
The invention relates to an EPS (expandable polystyrene) disassembly-free heat-insulation wall formwork framework with a fireproof isolation belt and a construction method thereof, belonging to the technical field of buildings.
Background
At present, a multi-storey and high-rise building mainly adopts a cast-in-place concrete structure, and in the construction of the cast-in-place concrete structure, a template is an important construction tool with a large quantity and a wide range, and the template occupies a great proportion in the aspects of occupied time, cost and engineering quality. The cost of the template accounts for 25% -35% of that of the concrete structure, and the labor cost of the template accounts for 30% -50% of that of the concrete structure.
The building formwork is a temporary supporting structure, which is manufactured according to the design requirements, so that a concrete structure and a member are formed according to the specified position and geometric dimension, the correct position of the concrete structure and the member is kept, and the self weight of the building formwork and the external load acting on the building formwork are borne. The building templates adopted in the prior art are mainly wooden templates or combined steel templates, and after construction is finished, the used building templates are dismantled; with the continuous development of the construction industry, the traditional template structure in the prior art has the following defects in practical use:
1. after the traditional formwork structure is constructed and the formwork is dismantled, an insulating layer and a fireproof isolation belt are required to be additionally manufactured, so that the construction steps are complex, the construction period is long, and the cost is high; on the other hand, a cavity is easily generated between the rock wool heat-insulation board and the poured concrete wall in the later-stage construction fireproof isolation belt, so that the firmness of connection between the rock wool heat-insulation board and the poured concrete wall cannot be guaranteed, the fireproof isolation effect is reduced due to the existence of the cavity, the construction quality is influenced, and the construction standard requirement cannot be met; similarly, a cavity is easily formed between the later-stage construction heat-insulating layer and the poured concrete wall, so that the problems that the heat-insulating layer is not firmly connected with the poured concrete wall, the heat-insulating layer is easy to fall off, the heat-insulating and energy-saving effects are poor and the like are caused.
2. In the construction of utilizing the existing template structure to pour the reinforced concrete structure, the reinforcing steel bars are generally erected by adopting on-site binding, the process is complex, the time consumption is long, the efficiency is low, the labor intensity is high, and the safety risk is high.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
The invention aims to solve the technical problem that the defects are overcome, and provides an EPS (expandable polystyrene) disassembly-free heat-insulation wall formwork framework with a fireproof isolation belt and a construction method thereof, which can realize the following purposes:
1. the concrete wall has the advantages that the concrete wall has heat preservation and fireproof effects, the step of additionally constructing a heat preservation layer and a fireproof isolation strip on the poured concrete wall is omitted, the construction steps are simplified, the construction period is shortened, and the construction cost is reduced;
2. cavities formed among the reinforced concrete wall, the heat-insulating layer and the fireproof isolation belt can be effectively avoided, firmness among the reinforced concrete wall, the heat-insulating layer and the fireproof isolation belt is improved, and heat-insulating, energy-saving and fireproof effects are improved;
3. the problems of complex process, long time consumption, low efficiency, high labor intensity, high safety risk and the like existing in on-site formwork supporting and formwork removing in the existing formwork structure reinforced concrete pouring construction can be solved.
In order to solve the technical problems, the invention adopts the following technical scheme: an EPS disassembly-free heat-insulation wall formwork framework with a fireproof isolation belt comprises an inner leaf formwork and an outer leaf formwork which are arranged at intervals, wherein a heat-insulation plate of the fireproof isolation belt is spliced at the top of the outer leaf formwork; the top of the inner leaf template is in lap joint with the floor slab template;
the fireproof isolation belt heat insulation board is characterized by further comprising a steel bar ladder frame, wherein the inner leaf template and the outer leaf template are fixed to the middle lower portion of the steel bar ladder frame, and the fireproof isolation belt heat insulation board is fixed to the upper portion of the steel bar ladder frame.
Furthermore, the heat insulation plate of the fireproof isolation belt is aligned with the outer leaf template; the fireproof isolation belt heat insulation plate and the outer leaf template form an outer template; the floor slab template and the inner leaf template form an inner template;
the reinforcing steel bar ladder frame is of a cuboid reinforcing steel bar frame structure; the prefabricated shaping of reinforcing bar ladder frame, reinforcing bar ladder frame includes a plurality of ladder frame monomers, and a plurality of ladder frame monomers evenly spaced sets one row to.
Furthermore, the single ladder frame body comprises two parallel vertical steel bars, a plurality of counter-pulling steel bars and a plurality of oblique steel bars are arranged between the two vertical steel bars, and two ends of each oblique steel bar are respectively fixed on the vertical steel bars; the plurality of oblique reinforcing steel bars are divided into a plurality of groups, and the inclination directions of two adjacent groups of oblique reinforcing steel bars are opposite and are in a cross shape.
Furthermore, a plurality of counter-pulling steel bars are divided into a plurality of groups; the opposite-pulling steel bars and the vertical steel bars are vertically crossed;
one end of the counter-pulling steel bar at the middle lower part of the steel bar ladder frame penetrates out of the inner side of the outer leaf template, and the other end of the counter-pulling steel bar penetrates out of the inner side of the inner leaf template; one end of the counter-pulling steel bar on the upper portion of the steel bar ladder frame is penetrated out to the outer side through the inner side of the fireproof isolation belt heat insulation plate, and the other end of the counter-pulling steel bar is fixed on the vertical steel bar of the steel bar ladder frame far away from the fireproof isolation belt heat insulation plate.
Furthermore, the outer side of the outer leaf template, the outer side of the inner leaf template and the outer side of the fireproof isolation belt heat insulation plate are connected with the split steel bars through outer disc sleeves;
the inner side of the outer leaf template, the inner side of the inner leaf template and the inner side of the fireproof isolation belt heat insulation board are connected with the split steel bars through inner disc sleeves.
Furthermore, the end part of the counter-pulling steel bar is provided with a thread structure, and the counter-pulling steel bar is connected with the external disc sleeve through the thread structure.
Further, the inner leaf templateThe outer blade templates adopt the combustion grade B1Prefabricating and molding grade EPS raw materials;
the fireproof isolation belt heat insulation plate is made of A-level non-combustible heat insulation materials.
A construction method of an EPS disassembly-free heat preservation wall formwork framework with a fireproof isolation belt comprises the following steps:
Laying a template positioning guide rail;
installing and fixing a heat-insulation wall template;
inserting and binding transverse steel bars;
installing and fixing a floor slab template;
and (5) pouring concrete.
Furthermore, in the process of laying the template positioning guide rail, the template positioning guide rail is a U-shaped guide rail or an L-shaped guide rail, and the template positioning guide rail is made of galvanized steel plates.
Further, in the template positioning guide rail, the position of the inner leaf template is determined through positioning and paying off before the template is laid; during laying, the template positioning guide rail is placed at the positioning pay-off position, and the template positioning guide rail is fixed on the ground;
further, in the installation and fixation of the heat-preservation wall template, the inner blade template is clamped into the U-shaped guide rail or is tightly abutted against the short edge of the L-shaped guide rail;
a reinforcing flat plate is adopted between two adjacent non-dismantling heat insulation wall formworks for supporting;
the lapped corners of the two non-dismantling heat preservation wall formworks are supported by L-shaped reinforcing plates;
and each non-dismantling heat preservation wall template is supported by an inclined support.
Furthermore, in the process of inserting and binding the transverse steel bars, after the non-dismantling heat preservation wall body formwork is installed, the inner leaf formwork is detached, the transverse steel bars and the vertical steel bars are bound by using binding steel wires, and then the inner leaf formwork is completely and fixedly connected with the steel bar ladder frame.
After the technical scheme is adopted, compared with the prior art, the invention has the following advantages:
according to the invention, the heat insulation plate is directly used as a template and is not detached after concrete is poured, so that the heat insulation structure is integrated, and the fireproof isolation belt is integrally formed.
The invention has the effects of heat preservation and fire prevention, omits the step of additionally constructing a heat preservation layer and a fire-proof isolation strip on the poured concrete wall, simplifies the construction steps, shortens the construction period and reduces the construction cost; the working time of workers is saved by more than 50%, and the construction time can be shortened by at least 25%.
The invention can effectively avoid the formation of cavities among the reinforced concrete wall, the heat-insulating layer and the fireproof isolation strip, improve the firmness among the reinforced concrete wall, the heat-insulating layer and the fireproof isolation strip, and improve the heat-insulating, energy-saving and fireproof effects.
The invention can solve the problems of complex process, long time consumption, low efficiency, high labor intensity, high safety risk and the like of formwork support and formwork removal in the construction of pouring a reinforced concrete structure by the existing formwork structure.
The invention explores a good way for meeting the standard requirements of 70 percent of energy conservation and higher of buildings in severe cold areas and having the same service life of the energy-saving building heat-insulating layer and the structural wall; the method has considerable social benefit, and can save 600 ten thousand tons of raw coal, reduce air pollution and protect the environment by using 1000 ten thousand m of EPS non-dismantling template calculation every year according to calculation. At present, China has a new building of 12 hundred million square meters every year, if all the buildings are built by using the novel green wall body and the roofing material which are free of form removal and have ultralow energy consumption, 300 hundred million kWh of electric quantity can be saved every year, a large amount of coal used for combustion of a power generation station can be saved, and a large amount of expenditure expenses for coal mining transportation, new thermal power plant construction, heating system maintenance, smoke dust haze treatment and the like can be saved every year.
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the field installation of the present invention;
FIG. 3 is a left side view of FIG. 2;
in the figure, the position of the upper end of the main shaft,
1-inner leaf formwork, 2-outer leaf formwork, 3-steel bar ladder frame, 31-split steel bars, 32-vertical steel bars, 33-oblique steel bars, 4-fireproof isolation zone heat preservation plates, 5-inner disc sleeves, 6-outer disc sleeves, 7-anti-crack rendering coat layers, 8-decorative coat layers, 9-floor formwork, 10-reinforcing flat plates and 11-oblique supports.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the invention provides an EPS disassembly-free thermal insulation wall formwork framework with a fireproof isolation zone, which comprises an inner leaf formwork 1 and an outer leaf formwork 2, wherein the inner leaf formwork 1 and the outer leaf formwork 2 are arranged at intervals, the fireproof isolation zone is arranged on the upper parts of the inner leaf formwork 1 and the outer leaf formwork 2, and the fireproof isolation zone comprises a fireproof isolation zone thermal insulation board 4.
Fireproof isolation area heated board 4 adopts the concatenation mode to establish at the top of outer leaf template 2, the width, the thickness homogeneous phase of outer leaf template 2 and fireproof isolation area heated board 4, fireproof isolation area heated board 4 aligns the setting with outer leaf template 2, fireproof isolation area heated board 4 forms the outer template with outer leaf template 2 jointly.
Further, the insulation board 4 of the fireproof isolation belt is made of A-level non-combustible insulation materials.
The top of the inner leaf template 1 is in lap joint with the floor slab template 9, and the lap joint part of the floor slab template 9 and the inner leaf template 1 form the inner template together.
And a gap formed between the outer template and the inner template is a concrete pouring area, and the reinforced concrete wall body is formed by pouring concrete in the concrete pouring area in situ.
A reinforcing steel bar ladder frame 3 is arranged in the concrete pouring area, and the reinforcing steel bar ladder frame 3 is of a cuboid reinforcing steel bar frame structure; the reinforcing steel bar ladder frame 3 is prefabricated and molded.
The inner leaf template 1 and the outer leaf template 2 are fixed by the middle lower part of the steel bar ladder frame 3, and the insulation board 4 of the fireproof isolation belt is fixed by the upper part of the steel bar ladder frame 3.
Reinforcing bar ladder frame 3 includes a plurality of ladder frame monomers, and a plurality of ladder frame monomers evenly spaced sets one row to. The ladder frame monomer includes two parallel vertical reinforcing bars 32, sets up many counter-pulling reinforcing bars 31 and many slant reinforcing bars 33 between two vertical reinforcing bars 32.
Two ends of the oblique steel bar 33 are respectively fixed on the vertical steel bar 32, and the oblique steel bar 33 is obliquely arranged; many slant reinforcing bars 33 divide into the multiunit from top to bottom, and adjacent two sets of slant reinforcing bars 33's inclination is opposite, is the fork form.
The plurality of counter-pulling steel bars 31 are divided into a plurality of groups, and the plurality of groups of counter-pulling steel bars 31 are sequentially arranged at intervals from top to bottom; the opposite-pulling reinforcing steel bars 31 and the vertical reinforcing steel bars 32 are arranged in a vertical crossing mode.
One end of the counter-pulling steel bar 31 at the middle lower part of the steel bar ladder frame 3 penetrates out of the inner side of the outer leaf template, and the other end of the counter-pulling steel bar penetrates out of the inner side of the inner leaf template; the one end of 3 upper portions of reinforcing bar ladder frame counter-pulling reinforcing bar 31 is worn out to the outside by 4 inboards of fireproof isolation area heated board, and the other end is fixed on 3 vertical reinforcing bar 32 of keeping away from fireproof isolation area heated board 4 of reinforcing bar ladder frame.
The outer leaf template 2 outside, the outer leaf template 2 outside and the 4 outsides of fireproof isolation area heated board all set up outside disc sleeve 6, will be connected with the tip of split bar 31 respectively in the outer leaf template 2 outside, the 1 outside of inner leaf template and the 4 outsides of fireproof isolation area heated board through outside disc sleeve 6.
The inboard of outer leaf template 2, 1 inboard of inner leaf template and 4 inboards of fireproof isolation zone heated board all set up inside disc sleeve pipe 5, are connected 2 inboards of outer leaf template, 1 inboard of inner leaf template, 4 inboards of fireproof isolation zone heated board and split bar 31 through inside disc sleeve pipe 5.
The section of the inner disc sleeve 5 is of a T-shaped structure, one end of the inner disc sleeve 5 is abutted with the inner side of the outer leaf template 2 or the inner side of the insulation board 4 of the fireproof isolation belt, and the other end of the inner disc sleeve 5 is abutted with the side part of the steel bar ladder frame 3; all leave the clearance between 2 inboards of reinforcing bar ladder frame 3 and outer leaf template, between reinforcing bar ladder frame 3 and the 1 inboard of inner leaf template, between reinforcing bar ladder frame 3 and the 4 inboards of fireproof isolation area heated board, the size in this clearance is the same with inside disc sleeve 5.
The end part of the opposite pulling steel bar 31 is provided with a thread structure and is connected with the external disc sleeve 6 through the thread structure.
The outer leaf template, the inner leaf template and the steel bar ladder frame 3 are fixedly connected through the arrangement of the inner disc sleeve 5 and the outer disc sleeve 6, and the connection between the heat insulation board 4 of the fireproof isolation belt and the steel bar ladder frame 3 is fixed.
The inner leaf template 1, the outer leaf template 2 and the floor slab template 9 are all formed by EPS raw materials in a prefabricated mode, the combustion performance of the EPS raw materials is not lower than B1 level, and the heat insulation floor slab has good heat preservation and heat insulation performance.
The fireproof isolation belt further comprises an anti-cracking rendering coat 7 and a finishing coat 8, wherein the anti-cracking rendering coat 7 and the finishing coat 8 are sequentially arranged on the outer side of the outer leaf formwork 2; the anti-crack finishing layer 7 and the finishing layer 8 are formed in later-stage field construction.
The construction method of the EPS disassembly-free heat-insulation wall formwork framework with the fireproof isolation belt comprises the following steps:
and S1, laying template positioning guide rails.
The template positioning guide rail is a U-shaped guide rail or an L-shaped guide rail made of galvanized steel plates.
And positioning and paying off are carried out according to construction drawings before the template positioning guide rail is laid so as to determine the position of the inner blade template of the non-dismantling heat-insulating wall template.
And placing the template positioning guide rail at the positioning pay-off position, and then firmly fixing the template positioning guide rail with the ground.
S2 prefabricated heat-insulating wall formwork
The outer leaf template and the fireproof isolation belt heat insulation board are assembled in advance in a factory and then are assembled with the inner leaf template to form a complete disassembly-free heat insulation wall template.
Specifically, outer leaf template, fire prevention median heated board are connected with reinforcing bar ladder frame through inside disc sleeve pipe, outside disc sleeve pipe, are connected inner leaf template and reinforcing bar ladder frame through inside disc sleeve pipe, outside disc sleeve pipe.
S3, installing and fixing the heat-insulating wall template
As shown in fig. 2-3, the end of the non-dismantling thermal insulation wall form with the thermal insulation board of the fire-proof isolation strip faces upwards, and the form is installed according to the construction position specified by the construction drawing, and the inner blade form of the non-dismantling thermal insulation wall form is clamped into the U-shaped guide rail or is abutted against the short edge of the L-shaped guide rail during installation.
The installation between two adjacent exempt from to tear open thermal insulation wall form is consolidated dull and stereotyped 10 and is strutted, and the quantity of consolidating dull and stereotyped 10 is no less than three, and should select suitable interval according to the template height and install on the outside disc sleeve pipe of the inner leaf template concatenation department of two exempt from to tear open thermal insulation wall form, consolidates dull and stereotyped 10 and adopts galvanized iron plate.
L-shaped reinforcing plates are arranged on the inner leaf template and the outer leaf template at the lapped corners of the two non-dismantling heat-insulating wall templates.
The disassembly-free heat preservation wall body formwork is supported by the inclined supports 11 in the installation process, and each disassembly-free heat preservation wall body formwork is provided with one inclined support 11.
S4, inserting and binding transverse steel bars;
after the wall formwork is installed, the inner leaf formwork is disassembled, and the transverse steel bars and the vertical steel bars are bound by binding steel wires; and then, an outer disc sleeve is adopted to completely fix the inner blade template on the steel bar ladder frame.
S5, installing and fixing a floor slab template;
and according to the construction drawing, sequentially laying the floor slabs in sequence. The edges of the floor slabs lapped with the wall are lapped on the inner leaf templates of the wall templates, and the subsequent floor slabs are spliced and installed according to the positions of the clamping grooves on the templates. And placing the reinforcing steel bars according to design requirements after the floor slab formwork is installed.
S6, pouring concrete;
the method is characterized in that a pumping pouring mode is adopted during concrete pouring, continuous layered pouring is carried out from one wall corner during pouring, and the floor slab is poured after all the wall bodies are poured.
S6, coating an anti-crack finishing layer;
when the concrete is solidified and reaches the strength capable of being constructed, an anti-crack plastering layer is coated outside the wall thermal insulation layer.
Before painting, the flatness of the wall is checked and the wall is cleaned, a leveling layer is constructed if necessary, the fixing degree of the surface layer is strengthened by painting the hanging net, and corner protecting strips are placed when corners and the section of the template are painted.
S7, coating a finish coat
1. Base layer treatment
The surface of the mortar of the surface layer needs to be fully dried for a period of reasonable drying time and then is treated as a base layer.
2. Flexible water-proof putty for batch scraping
And (3) scraping the flexible waterproof putty twice, wherein the first time is to fully scrape the waterproof putty and repair and level local hollow parts. And scraping the wall surface with a scraper plate for the second time until the wall surface is smooth. And (4) after the surface of the putty is dried, polishing the putty by using abrasive paper to form a smooth, bright and clean and exquisite wall surface.
3. And (4) brushing a sealing primer.
And (3) coating the sealing primer after the putty layer is constructed and dried, wherein a coating tool adopts a high-quality short-hair roller. And (4) uniformly brushing the seal primer once until the base layer is completely sealed, so that the seal primer cannot be left behind.
4. Paint finish
And (3) uniformly brushing the exterior wall finish twice until the base layer is completely covered and the color is consistent. And carrying out cell division treatment before painting, and carrying out cell division treatment on the wall surface by using an adhesive tape. Painting the finish paint twice according to the painting direction and the requirement.
The foregoing is illustrative of the best mode of the invention and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.
Claims (12)
1. The utility model provides a take EPS of fire prevention median to exempt from to tear open thermal insulation wall template framework, includes interior leaf template (1) and outer leaf template (2) that the interval set up, its characterized in that: the top of the outer leaf template (2) is spliced with a fireproof isolation belt insulation board (4); the top of the inner leaf template (1) is in lap joint with the floor slab template (9);
still include reinforcing bar ladder frame (3), inner leaf template (1), outer leaf template (2) are fixed in the well lower part of reinforcing bar ladder frame (3) upper portion at reinforcing bar ladder frame (3) is fixed in fire prevention median heated board (4).
2. The EPS disassembly-free heat-preservation wall formwork structure with the fireproof isolation belts as claimed in claim 1, wherein: the fireproof isolation belt heat insulation plate (4) is aligned with the outer leaf template (2); the fireproof isolation belt heat insulation plate (4) and the outer leaf template (2) form an outer template; the floor slab template (9) and the inner blade template (1) form an inner template;
the reinforcing steel bar ladder frame (3) is of a cuboid reinforcing steel bar frame structure; reinforcing bar ladder frame (3) prefabricated molding, reinforcing bar ladder frame (3) include a plurality of ladder frame monomers, and a plurality of ladder frame monomers evenly spaced sets one row to.
3. The EPS disassembly-free heat-preservation wall formwork structure with the fireproof isolation belt, as claimed in claim 2, is characterized in that: the ladder frame single body comprises two parallel vertical reinforcing steel bars (32), a plurality of counter-pulling reinforcing steel bars (31) and a plurality of oblique reinforcing steel bars (33) are arranged between the two vertical reinforcing steel bars (32), and two ends of each oblique reinforcing steel bar (33) are respectively fixed on the vertical reinforcing steel bars (32); the plurality of oblique reinforcing steel bars (33) are divided into a plurality of groups, and the oblique directions of two adjacent groups of oblique reinforcing steel bars (33) are opposite and are crossed.
4. The EPS disassembly-free heat-preservation wall formwork structure with the fireproof isolation belts as claimed in claim 3, wherein: a plurality of counter-pulling steel bars (31) are divided into a plurality of groups; the opposite-pulling steel bars (31) and the vertical steel bars (32) are arranged in a vertical crossing manner;
one end of a counter-pulling steel bar (31) at the middle lower part of the steel bar ladder frame (3) penetrates out of the outer side from the inner side of the outer leaf template, and the other end of the counter-pulling steel bar penetrates out of the outer side from the inner side of the inner leaf template; one end of the counter-pulling steel bar (31) on the upper portion of the steel bar ladder frame (3) is penetrated out to the outside through the inner side of the fireproof isolation belt heat preservation plate (4), and the other end of the counter-pulling steel bar is fixed on the vertical steel bar (32) of the steel bar ladder frame (3) far away from the fireproof isolation belt heat preservation plate (4).
5. The EPS disassembly-free heat-preservation wall formwork structure with the fireproof isolation belts as claimed in claim 4, wherein: the outer side of the outer leaf template (2), the outer side of the inner leaf template (1) and the outer side of the fireproof isolation strip heat insulation board (4) are connected with the split steel bars (31) through outer disc sleeves (6);
the inner side of the outer leaf template (2), the inner side of the inner leaf template (1) and the inner side of the fireproof isolation belt heat insulation board (4) are connected with the split steel bars (31) through the inner disc sleeves (5).
6. The EPS disassembly-free heat-preservation wall formwork structure with the fireproof isolation belts as claimed in claim 5, wherein: the end part of the opposite-pulling reinforcing steel bar (31) is provided with a thread structure, and the opposite-pulling reinforcing steel bar (31) is connected with the external disc sleeve (6) through the thread structure.
7. The EPS disassembly-free heat-preservation wall formwork structure with the fireproof isolation belts as claimed in claim 1, wherein: the inner blade template (1) and the outer blade template (2) both adopt the combustion grade B1Prefabricating and molding grade EPS raw materials;
the fireproof isolation belt heat insulation plate (4) is made of A-level non-combustible heat insulation materials.
8. A construction method of an EPS disassembly-free heat preservation wall formwork framework with a fireproof isolation belt is characterized in that: the method comprises the following steps:
laying a template positioning guide rail;
installing and fixing a heat-insulation wall template;
inserting and binding transverse steel bars;
installing and fixing a floor slab template;
and (5) pouring concrete.
9. The construction method of the EPS disassembly-free heat-preservation wall formwork framework with the fireproof isolation belt, as claimed in claim 8, is characterized in that:
and laying a template positioning guide rail, wherein the template positioning guide rail is a U-shaped guide rail or an L-shaped guide rail, and the template positioning guide rail is made of galvanized steel plates.
10. The construction method of the EPS disassembly-free heat-preservation wall formwork framework with the fireproof isolation belt, as claimed in claim 8, is characterized in that:
laying a template positioning guide rail, and determining the position of an inner leaf template through positioning and paying off before laying; and during laying, the template positioning guide rail is placed at the positioning pay-off position, and the template positioning guide rail is fixed on the ground.
11. The construction method of the EPS disassembly-free heat-preservation wall formwork framework with the fireproof isolation belt, as claimed in claim 8, is characterized in that:
installing and fixing the heat-insulating wall template, wherein the inner blade template is clamped into the U-shaped guide rail or is tightly abutted against the short edge of the L-shaped guide rail;
a reinforcing flat plate is adopted between two adjacent non-dismantling heat insulation wall formworks for supporting;
the lapped corners of the two non-dismantling heat preservation wall formworks are supported by L-shaped reinforcing plates;
and each non-dismantling heat preservation wall template is supported by an inclined support.
12. The construction method of the EPS disassembly-free heat-preservation wall formwork framework with the fireproof isolation belt, as claimed in claim 8, is characterized in that:
in the process of inserting and binding the transverse steel bars, after the disassembly-free heat preservation wall body formwork is installed, the inner leaf formwork is disassembled, the transverse steel bars and the vertical steel bars are bound by using binding steel wires, and then the inner leaf formwork is completely and fixedly connected with the steel bar ladder frame.
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| CN202110850106.0A CN113585553A (en) | 2021-07-27 | 2021-07-27 | EPS (expandable polystyrene) disassembly-free heat-insulation wall formwork framework with fireproof isolation belt and construction method |
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| CN202110850106.0A CN113585553A (en) | 2021-07-27 | 2021-07-27 | EPS (expandable polystyrene) disassembly-free heat-insulation wall formwork framework with fireproof isolation belt and construction method |
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