CN105714962A - External wall system of cast-in-situ prefabricated dismantling-free integral assembling heat-preservation external formwork and construction method - Google Patents
External wall system of cast-in-situ prefabricated dismantling-free integral assembling heat-preservation external formwork and construction method Download PDFInfo
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- CN105714962A CN105714962A CN201610084156.1A CN201610084156A CN105714962A CN 105714962 A CN105714962 A CN 105714962A CN 201610084156 A CN201610084156 A CN 201610084156A CN 105714962 A CN105714962 A CN 105714962A
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- 238000004321 preservation Methods 0.000 title claims abstract description 85
- 238000010276 construction Methods 0.000 title claims abstract description 41
- 238000009415 formwork Methods 0.000 title claims abstract description 37
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims description 145
- 239000000178 monomer Substances 0.000 claims description 63
- 150000001875 compounds Chemical class 0.000 claims description 61
- 239000010410 layer Substances 0.000 claims description 57
- 210000004907 gland Anatomy 0.000 claims description 47
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 239000004567 concrete Substances 0.000 claims description 28
- 239000004568 cement Substances 0.000 claims description 17
- 239000004570 mortar (masonry) Substances 0.000 claims description 17
- 239000011490 mineral wool Substances 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 10
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 7
- 238000004873 anchoring Methods 0.000 claims description 7
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- 239000011178 precast concrete Substances 0.000 description 9
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Classifications
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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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
Abstract
The invention relates to an external wall system of a cast-in-situ prefabricated dismantling-free integral assembling heat-preservation external formwork and a construction method.The external wall system comprises an internal formwork, a prefabricated integral assembling heat-preservation external formwork formed by splicing prefabricated external wall composite heat-preservation formwork single bodies and wall body rebars; a cast-in-situ shear wall is formed by conducting cast-in-situ by taking the prefabricated integral assembling heat-preservation external formwork and the internal formwork as supports; the prefabricated integral assembling heat-preservation external formwork is fixedly mounted on a prefabricated external wall heat-preservation external formwork frame, the prefabricated external wall heat-preservation external formwork frame and the prefabricated integral assembling heat-preservation external formwork are integrally hoisted on the outer sides of the wall body rebars and correspond to the internal formwork on the inner sides of the wall body rebars, and an opposite-pull bolt assembly which transversely penetrates through the wall body rebars, the prefabricated external wall heat-preservation external formwork frame and the internal formwork is arranged in the wall body rebars.Compared with the prior art, integral prefabricating hoisting is adopted, and secondary construction of the heat-preservation layer is omitted; a heat-preservation layer and the main body structure are integral and same in service life, and the durability of the heat-preservation layer is increased; the building wall heat-preservation performance can be improved, and the construction quality is improved; by means of the system, construction of the external formwork and an external scaffold can be omitted and the construction efficiency can be improved.
Description
Technical field
The invention belongs to external wall technical field, particularly relate to that a kind of one is cast-in-place with concrete builds prefabricated external wall system and the construction method exempting to dismantle overall assembling insulation exterior sheathing.
Background technology
The compulsory execution of building energy-saving standard and the city management strict management and control to building waste and construction noise.
Traditional shear wall construction is after reinforcing bar has been pricked, workman installs outer, interior masterplate and support system respectively on the landing stage of scaffold and floor, inner and outer template is at inner support (being generally fixed on steel reinforcement cage with wall thickness equal length reinforcing bar) and split bolt or under the combined effect drawing band iron, form concrete placings cavity, after concrete reaches strength of mould stripping, remove masterplate and support.
At present, in order to reach power conservation requirement, newly-built concrete shear wall external wall is both needed to the structure of heat-insulation layer, the scheme of the problem that prior art solves insulation mainly has two kinds, one is be placed on inside exterior sheathing with the adiabator plate with steel wire, be combined with concrete wall by plugging wire during concrete placings, after form removal, plaster, make decoration of exterior wall；Two is that concrete main body is first constructed, after paste warming plate, screening, nailing reinforce after, do wall decoration.These two kinds of schemes are both needed to again scaffolding or suspension bracket, plaster, the wet trade such as coating, there is high-altitude application and disaster hidden-trouble, the quality accident that heat-insulation layer comes off also once occurred.There is reality long in time limit, that have high input.
A kind of precast facade formwork structure system with heat insulation function and construction method, number of patent application: 201510436301.3 disclosed in prior art；Precast concrete outer wall template is proposed, namely precast concrete outer wall template is included, the inner side of precast concrete outer wall template is fixed with heat-insulation layer, cast-in-place shear wall has been built in the inner side of heat-insulation layer, dismounting inner formword after desirable strength is reached until concrete, formed cast-in-place shear wall, formed containing precast concrete outer wall template, heat-insulation layer, cast-in-place shear wall external wall system.But depend merely on when implementing the intensity of precast concrete outer wall template and heat-insulation layer cannot bear at all casting concrete deadweight and when vibrating lateral pressure to template, it is inadequate for relying solely on split bolt, it is easy to cause the problems such as swollen mould；After additionally building molding in time, to durability, fastness test, heat-insulation layer bears the weight of deadweight and precast concrete outer wall template at all, in turn results in and comes off；It main reason is that heat-insulation layer and walls concrete directly build molding, and first heat-insulation layer changeableness under relatively hightension effect, causes and hollowing occur with walls concrete bonding place；Two kinds of material heat-insulation layers and concrete bonding are not fitted, and its cohesive force is also relatively poor, do not reach intended purpose at all, so implement this technology cannot practice and extension, equally, precast concrete outer wall template and heat-insulation layer junction there is also this problem.
There is provided for this present invention that a kind of self-heat conserving is permanent cast-in-place builds the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing and construction method.
Summary of the invention
The present invention solves that the technical problem existed in known technology provides a kind of heat-insulating property durability that increases, reduce construction cost, reduction of erection time, save the construction of heat-insulation layer secondary, construction wall heat-insulating property can be improved, improve build guality, meeting National Fire design specification, permanent cast-in-place the building of the self-heat conserving that better contributes for energy-saving and emission-reduction prefabricated exempted to dismantle overall assembling and is incubated external wall system and the construction method of exterior sheathing.
The present invention solves that the technical problem existed in known technology is adopted the technical scheme that:
A kind of cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing, it is characterised in that: include precast facade compound heat preservation die plate monomer, inner formword；Form prefabricated overall assembling insulation exterior sheathing after the splicing of precast facade compound heat preservation die plate monomer, form the cast-in-place inner chamber building shear wall between prefabricated overall assembling insulation exterior sheathing and inner formword, be banded with wall steel bar at interior intracavity；The inner side of described prefabricated overall assembling insulation exterior sheathing is cast-in-place shear wall, and described cast-in-place shear wall is to form with prefabricated overall assembling insulation exterior sheathing and the inner formword installed inside it for supporting cast in situs；
Described prefabricated overall assembling insulation exterior sheathing is fixedly mounted on precast facade and is incubated on outer mould bases, described precast facade is incubated outer mould bases and the prefabricated entirety being arranged on the precast facade outer mould bases of insulation assembles insulation exterior sheathing integral hoisting in the outside of wall steel bar, and corresponding with the inner formword inside wall steel bar, and in wall steel bar, it is provided with the split bolt assembly extending transversely through wall steel bar, the precast facade outer mould bases of insulation and inner formword；
Described precast facade compound heat preservation die plate monomer is provided with the be inserted in wall steel bar first prefabricated connector, and described first prefabricated connector is now cast in shear wall.
The present invention can also adopt following technical measures:
Described first prefabricated connector includes shear connector and/or is fixedly mounted with connector, and described shear connector is arranged between adjacent precast facade compound heat preservation die plate monomer splicing seams；The described connector that is fixedly mounted with runs through whole precast facade compound heat preservation die plate monomer from the lateral surface of precast facade compound heat preservation die plate monomer, and stretches out precast facade compound heat preservation die plate monomer medial surface.
Described shear connector mainly includes shear resisting board, and one end symmetry of described shear resisting board is bent with horizontal plate, and described plate is inserted in the pregroove marks that contiguous prefabricated exterior wall composite thermal insulation template monomer side is offered respectively；The other end of described shear resisting board is provided with Y type anchoring termination, described Y type anchoring termination and shear wall integrally cast-in-place build together with.
The described connector that is fixedly mounted with mainly includes the first pretension bolt, described first pretension bolt is set with the first pre-gland, described first pre-gland spiral-lock in the first pretension groove, described first pretension bolt is equipped with the first locking nut and the second locking nut on precast facade compound heat preservation die plate monomer lateral surface；Wherein pre-to the first pretension bolt and first gland is fastened on precast facade compound heat preservation die plate monomer by the first locking nut；Described second locking nut is positioned at the outer end of the first pretension bolt formed by integrally casting at shear wall.
First pretension bolt includes the first nut and the first screw rod, and described first nut outer face is provided with and screws groove, and the inner face of the first nut is pyramidal structure；Described first pre-gland includes the first pre-gland body and installs the mounting hole of the first pretension bolt, and described mounting hole is the taper hole that the pyramidal structure with the first nut inner face matches；After described first pretension bolt and the first pre-gland and the first locking nut pretension, it is ensured that the first pre-outer face of gland, the first nut outer face in the same plane with the lateral surface of precast facade compound heat preservation die plate monomer.
Described precast facade is incubated the external mould frame that outer mould bases includes being surrounded by entablature, sill, left vertical beam and right vertical beam；Described external mould frame is also equipped with mast-up；
The medial surface entablature of described external mould frame, sill, left vertical beam and right vertical beam are positioned on same datum level；
In external mould frame described entablature, sill medial surface be provided with the first link being connected with precast facade compound heat preservation die plate monomer；
The lateral surface of described external mould frame is connected to outer support frame；
External mould frame lateral surface along between the left vertical beam of short transverse and right vertical beam at least provided with one group of pretension crossbeam；The split bolt assembly being connected with inner formword is installed in described pretension crossbeam；
In external mould frame, between entablature and sill, it is interval with several heat insulation formwork supports beam；Several heat insulation formworks support the medial surface of beam and are all positioned on same datum level with entablature, sill, left vertical beam and right vertical beam；The side of each heat insulation formwork support beam or both sides support depth of beam direction along heat insulation formwork and are provided with the second link being connected with precast facade compound heat preservation die plate monomer；Described second link is installed detachable second prefabricated connector；
In external mould frame described entablature, sill side be provided with the connection elongated hole connecting the outer mould bases of contiguous prefabricated exterior-wall heat insulation.
Described outer support frame is provided with precast facade and is incubated outer mould bases verticality adjusting device；Described adjusting apparatus includes supporting base, described support base is movably installed with adjusting screw, described adjusting screw is fitted with swivel nut, and described swivel nut is fixedly mounted on outer support frame.
Described second prefabricated connector includes the second pre-gland and the second pretension bolt, in the described second pre-gland spiral-lock the second pretension groove inside precast facade compound heat preservation die plate monomer, second pretension bolt stretches out and passes the first link and the second link from the inner side of precast facade compound heat preservation die plate monomer, equipped detachable 3rd pre-load nut on lateral surface second pretension bolt of the first link and the second link；The second above-mentioned pretension bolt includes the second nut and the second screw rod, and described second nut outer face is provided with and screws groove, and the inner face of the second nut is pyramidal structure；Described second pre-gland includes the second pre-gland body and installs the mounting hole of the second pretension bolt, and described mounting hole is the taper hole that the pyramidal structure with the second nut inner face matches；After described second pretension bolt and the second pre-gland and the 3rd locking nut pretension, it is ensured that the second pre-outer face of gland, the second nut outer face in the same plane with the lateral surface of precast facade compound heat preservation die plate monomer.
Precast facade compound heat preservation die plate monomer, from including cement-based mortar outer coversheet, vitrification micropearl morttar transition zone, binding sand pulp layer, phenol formaldehyde foam heat-insulation layer or rock wool heat-preservation layer and cement-based mortar internal surface layer successively outside to inside, is wherein equipped with glass screen cloth or zinc-plated weldering net in cement-based mortar outer coversheet, binding sand pulp layer and cement-based mortar internal surface layer；It is provided with latticed reinforcement between binding sand pulp layer and phenol formaldehyde foam heat-insulation layer or rock wool heat-preservation layer.
The present invention also carries that a kind of one is cast-in-place with concrete builds the prefabricated construction method exempting to dismantle the external wall system of overall assembling insulation exterior sheathing, comprises the following steps:
(1), prefabricated inner formword, precast facade compound heat preservation die plate monomer, precast facade be incubated outer mould bases；
(2), precast facade compound heat preservation die plate monomer installs the first prefabricated connector and the second prefabricated connector, and be assembled in precast facade and be incubated on outer mould bases to be formed and be incubated prefabricated overall assembling of outer mould bases one with precast facade and be incubated exterior sheathing；
(3), precast facade is incubated outer mould bases hoisted in position, and support fixing, the cast-in-place wall steel bar building shear wall of colligation inside prefabricated overall assembling insulation exterior sheathing, install inner formword in the inner side of wall steel bar, then precast facade is incubated outer mould bases with inner formword by the pre-stressed joint of split bolt assembly；Adjust the second locking nut being fixedly mounted with connector on prefabricated overall assembling insulation exterior sheathing；Then adjust precast facade and be incubated the verticality adjusting device outside outer mould bases, adjust precast facade and be incubated the perpendicularity of outer mould bases, adjust after vertically, it is that benchmark adjusts split bolt assembly again according to adjusting the precast facade outer mould bases of insulation so that precast facade insulation outer mould bases pre-stressed joint parallel with inner formword；
(4), to casting concrete in the wall steel bar between inner formword and prefabricated overall assembling insulation exterior sheathing；
(5), reach after desirable strength, to remove inner formword and the precast facade outer mould bases of insulation until concrete, form cast-in-place shear wall, form the external wall system being incubated exterior sheathing, cast-in-place shear wall containing prefabricated overall assembling.
The present invention has the advantage that and has the benefit effect that owing to the present invention adopts above-mentioned technology, has the advantage that
1, heat-insulation layer is combined with precast facade compound heat preservation die plate, save the construction of heat-insulation layer secondary, construction wall heat-insulating property can be improved, improve build guality, meet country's exterior wall fireproof code requirement, body of wall and external thermal insulation simultaneous construction can be realized simultaneously, and then better contribute for energy-saving and emission-reduction.
2, prefabricated overall assembling warming plate adopts composite construction, and namely heat-insulation layer is arranged on the inner side of cement-based mortar outer coversheet, it is to avoid expose to the weather, and adds the durability of heat-insulation layer.
3, inner formword is set up in the inner side that prefabricated overall assembling insulation exterior sheathing is corresponding, assembly will be connected again be incubated outer mould bases fixing with prefabricated overall assembling insulation exterior sheathing and precast facade through inner formword and be connected, building exterior sheathing and external scaffolding can be saved, improve efficiency of construction, reduce cost, reduction of erection time.
4, adopt precast facade to be incubated outer mould bases, support powerful concrete deadweight, produced side force of vibrating when building can be resisted simultaneously；The problem solving prior art exterior sheathing bearing capacity difference, the problem that hollowing occurs in the junction caused because of heat-insulation layer deformation.
5, the connection with concrete wall is improved at precast concrete outer wall template at default connector, overcome the shearing force that heat-insulation plate for external is conducted oneself with dignity, improve fastness, extend the durability of heat-insulation layer, fundamentally solve exterior wall heat-preserving system and there is cracking, play the quality problems such as drum comes off；
6, the present invention can realize factory normalization production and processing, solves the quality uncontrollability brought of execute-in-place in construction process；
7, the present invention substantially realizes insulation and builds the same life-span.
In sum, this practicality provides a kind of self-heat conserving, permanent cast-in-place builds the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is structural representation after shear wall and prefabricated overall assembling insulation exterior sheathing molding；
Fig. 3 is prefabricated overall assembling insulation exterior sheathing and precast facade insulation outer mould bases assembling structural representation；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the right view of Fig. 3；
Fig. 6 is Fig. 3 left view axonometric chart；
Fig. 7 is the right parallax stereogram of Fig. 3；
Fig. 8 and Fig. 8 a is precast facade compound heat preservation die plate monomer structure schematic diagram；
Fig. 9 is fixedly mounted with connecting-piece structure schematic diagram；
Figure 10 is the first pretension gland structure schematic diagram in Fig. 9；
Figure 11 is the second prefabricated connecting-piece structure schematic diagram；
Figure 12 is the second pre-gland body construction schematic diagram in Figure 11；
Figure 13 is the second prefabricated connector and the first link or the second link attachment structure schematic diagram；
Figure 14 is shear connector structural representation；
Figure 15 is A-A sectional view in Figure 14；
Figure 16 is that the precast facade with unilateral external corner is incubated outer die carrier structure schematic diagram；
Figure 17 is that the precast facade with bilateral external corner is incubated outer die carrier structure schematic diagram；
Figure 18 is incubated outer die carrier structure schematic diagram with unilateral inner corner trim precast facade；
Figure 19 is incubated outer die carrier structure schematic diagram with jack to jack adapter angle precast facade；
Figure 20 is with the prefabricated overall assembling insulation exterior sheathing splicing structure schematic diagram in fire-blocking belt.
In figure: 100, inner formword；
200, prefabricated overall assembling insulation exterior sheathing；210, precast facade compound heat preservation die plate monomer；211, pregroove marks；212, the first pretension groove；213, the second pretension groove；214, cement-based mortar outer coversheet；215, vitrification micropearl morttar transition zone；216, binding sand pulp layer；217, phenol formaldehyde foam heat-insulation layer；218, rock wool heat-preservation layer；219, cement-based mortar internal surface layer；220, glass screen cloth or zinc-plated weldering net；230, latticed reinforcement；
300, shear wall；
400, wall steel bar；
500, precast facade is incubated outer mould bases；501, entablature；501-1, connection elongated hole；502, sill；503, left vertical beam；504, right vertical beam；505, mast-up；506, the first link；507, outer support frame；508, pretension crossbeam；509, heat insulation formwork supports beam；510, the second link；511, the second prefabricated connector；5110, the second pre-gland；5110-1, the second pre-gland body；5110-2, mounting hole；5111, the second pretension bolt；5111-1, the second nut；5111-2, the second screw rod；5112, the 3rd pre-load nut；512, adjusting apparatus；5120, base is supported；5121, adjusting screw；5122, swivel nut；
600, split bolt assembly；
710, shear connector；711, shear resisting board；712, horizontal plate；713, Y type anchoring termination；720, it is fixedly mounted with connector；721, the first pretension bolt；7210, the first nut；7211, groove is screwed；7212, the first screw rod；722, the first pre-gland；7220, the first pre-gland body；7221, mounting hole；723, the first locking nut；724, the second locking nut；
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and it be as follows to coordinate accompanying drawing to describe in detail:
Refer to Fig. 1 to Fig. 7, a kind of cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing, including precast facade compound heat preservation die plate monomer 210, inner formword 100；Form prefabricated overall assembling insulation exterior sheathing 200 after the splicing of precast facade compound heat preservation die plate monomer, form the cast-in-place inner chamber building shear wall between prefabricated overall assembling insulation exterior sheathing 200 and inner formword 100, be banded with wall steel bar 400 at interior intracavity；The inner side of described prefabricated overall assembling insulation exterior sheathing is cast-in-place shear wall 300, and described cast-in-place shear wall 300 is to form with prefabricated overall assembling insulation exterior sheathing 200 and the inner formword 100 installed inside it for supporting cast in situs；Described prefabricated overall assembling insulation exterior sheathing 200 is fixedly mounted on precast facade and is incubated on outer mould bases 500, the outer mould bases of described precast facade insulation 500 and the prefabricated entirety being arranged on the precast facade outer mould bases of insulation assemble insulation exterior sheathing integral hoisting in the outside of wall steel bar 400, and corresponding with the inner formword inside wall steel bar, and in wall steel bar, it is provided with the split bolt assembly 600 extending transversely through wall steel bar 400, the precast facade outer mould bases 500 of insulation and inner formword 100；Described precast facade compound heat preservation die plate monomer 201 is provided with the be inserted in wall steel bar first prefabricated connector, and described first prefabricated connector is now cast in shear wall 300.
Described first prefabricated connector includes shear connector 710 and/or is fixedly mounted with connector 720, and described shear connector 710 is arranged between adjacent precast facade compound heat preservation die plate monomer 210 splicing seams；The described connector 720 that is fixedly mounted with runs through whole precast facade compound heat preservation die plate monomer 210 from the lateral surface of precast facade compound heat preservation die plate monomer 210, and stretches out precast facade compound heat preservation die plate monomer 210 medial surface.
Refer to Figure 14 and Figure 15, described shear connector 710 mainly includes shear resisting board 711, one end symmetry of described shear resisting board is bent with horizontal plate 712, and described plate is inserted in the pregroove marks 211 that contiguous prefabricated exterior wall composite thermal insulation template monomer 210 side is offered respectively；The other end of described shear resisting board is provided with Y type anchoring termination 713, described Y type anchoring termination and shear wall 300 integrally cast-in-place build together with.
Refer to Fig. 9 and Figure 10, the described connector 720 that is fixedly mounted with mainly includes the first pretension bolt 721, described first pretension bolt 721 is set with the first pre-gland 722, described first pre-gland 722 spiral-lock in the first pretension groove 212, described first pretension bolt 721 is equipped with the first locking nut 723 and the second locking nut 724 on precast facade compound heat preservation die plate monomer 210 lateral surface；Wherein the first pretension bolt 721 and the first pre-gland 722 are fastened on precast facade compound heat preservation die plate monomer 210 by the first locking nut 723；Described second locking nut 724 be positioned at the first pretension bolt 721 outer end insert shear wall, with shear wall is cast-in-place build together with.The first above-mentioned pretension bolt and the first pre-gland 722 can also adopt integrative-structure.
First pretension bolt 721 includes the first nut 7210 and the first screw rod 7212, and described first nut outer face is provided with and screws groove 7211, and the inner face of the first nut is pyramidal structure；Described first pre-gland 722 includes the first pre-gland body 7220 and installs the mounting hole 7221 of the first pretension bolt, and described mounting hole is the taper hole that the pyramidal structure with the first nut inner face matches；After described first pretension bolt 721 and the first pre-gland 722 and the first locking nut 723 pretension, ensure that the lateral surface of the first pre-outer face of gland 722, the outer face of the first nut 7210 and precast facade compound heat preservation die plate monomer 210 is in the same plane, thus ensureing that the outer surface of prefabricated overall assembling insulation exterior sheathing is more smooth, it is simple to the decoration construction of exterior wall.
Referring to Fig. 3 to Fig. 7, described precast facade is incubated the external mould frame that outer mould bases 500 includes being surrounded by entablature 501, sill 502, left vertical beam 503 and right vertical beam 504；Described external mould frame is also equipped with mast-up 505；The medial surface entablature of described external mould frame, sill, left vertical beam and right vertical beam are positioned on same datum level, ensure that the outer surface of precast facade compound heat preservation die plate monomer is in same level after prefabricated laying precast facade compound heat preservation die plate monomer, it is simple to later stage decoration construction；In external mould frame described entablature 501, sill 502 medial surface be provided with the first link 506 being connected with precast facade compound heat preservation die plate monomer 210, described first link makes L-type structure, it is simple to weld together with the medial surface of entablature 501, sill 502；The lateral surface of described external mould frame is connected to outer support frame 507；External mould frame lateral surface along between the left vertical beam of short transverse and right vertical beam at least provided with one group of pretension crossbeam 508；The split bolt assembly 600 being connected with inner formword is installed in described pretension crossbeam, the purpose of split bolt assembly 600 is in that precast facade is incubated outer mould bases 500, precast facade compound heat preservation die plate 200 and inner formword 100 connect as a whole, it is ensured that when building, do not fall apart.
In external mould frame, between entablature 501 and sill 502, it is interval with several heat insulation formwork supports beam 509；Several heat insulation formworks support the medial surface of beam and are all positioned on same datum level with entablature 501, sill 502, left vertical beam 503 and right vertical beam 504；The side of each heat insulation formwork support beam 509 or both sides support depth of beam direction along heat insulation formwork and are provided with the second link 510 being connected with precast facade compound heat preservation die plate monomer, and in order to simplify making, described second link 510 also makes L-type structure；Described second link 510 is installed detachable second prefabricated connector 511；Refer to Figure 11 to Figure 13；Described second prefabricated connector 511 includes the second pre-gland 5110 and the second pretension bolt 5111, in described second pre-gland 5110 spiral-lock the second pretension groove 213 inside precast facade compound heat preservation die plate monomer 210, second pretension bolt 5111 stretches out from the inner side of precast facade compound heat preservation die plate monomer 210 and passes the first link 506 and the second link 510, equipped detachable 3rd pre-load nut 5112 on lateral surface second pretension bolt 5111 of the first link 506 and the second link 510；The second above-mentioned pretension bolt 5111 includes the second nut 5111-1 and the second screw rod 5111-2, and described second nut 51110 outer face is provided with and screws groove 5111-3, and the inner face of the second nut is pyramidal structure；Described second pre-gland 5110 includes the second pre-gland body 5110-1 and the mounting hole 5110-2, described mounting hole 5110-2 that install the second pretension bolt 5111 are the taper hole that the pyramidal structure with the second nut 5111-1 inner face matches；After described second pretension bolt 5111 and the second pre-gland 5110 and the 3rd locking nut 5112 pretension, it is ensured that the second pre-outer face of gland 5110, the second nut 5111-1 outer face in the same plane with the lateral surface of precast facade compound heat preservation die plate monomer 210；In external mould frame described entablature 501, sill 502 side be provided with the connection elongated hole 501-1 connecting the outer mould bases of contiguous prefabricated exterior-wall heat insulation.Second pre-gland 5110 of the second above-mentioned prefabricated connector 511 and the second pretension bolt 5111 can also adopt integrative-structure.
According to actual architectural design, described precast facade is incubated on outer mould bases can also be integrally formed with external corner framework (such as Figure 16 and Figure 17) or inner corner trim framework (such as Figure 18), it is possibility to have two inner corner trim frameworks (such as Figure 19).
Described outer support frame 507 is provided with precast facade and is incubated outer mould bases verticality adjusting device 512；Described adjusting apparatus 512 includes supporting base 5120, described support base 5120 is movably installed with adjusting screw 5121, described adjusting screw is fitted with swivel nut 5122, and described swivel nut 5122 is fixedly mounted on outer support frame 507.
Precast facade compound heat preservation die plate monomer 210 preferably employs following structure; refer to Fig. 8 and Fig. 8 a; namely from including cement-based mortar outer coversheet 214, vitrification micropearl morttar transition zone 215, binding sand pulp layer 216, phenol formaldehyde foam heat-insulation layer 217 or rock wool heat-preservation layer 218 and cement-based mortar internal surface layer 219 successively outside to inside, glass screen cloth or zinc-plated weldering net 220 wherein in cement-based mortar outer coversheet, binding sand pulp layer and cement-based mortar internal surface layer, it are equipped with；Latticed reinforcement 230 it is provided with between binding sand pulp layer and phenol formaldehyde foam heat-insulation layer or rock wool heat-preservation layer.
Building external thermal insulation designing requirement according to reality, increase fire-blocking belt in prefabricated overall assembling insulation exterior sheathing system, the material selection rock wool heat-preservation layer of the heat-insulation layer of the precast facade compound heat preservation die plate monomer of described formation fire-blocking belt, such as Figure 20.
Precast facade template monomer adopts above-mentioned composite construction, have the advantage that 1, design and construction technology simple, it is easy to large scale application.The load-carrying members form of cast-in-place concrete framework (frame is cut) structure is constant, and current standard specifications design still pressed by beam column and shear wall, and design standard and software for calculation are complete, and construction technology is ripe, it is easy to large scale application.
2, integrated technique requirement is reached, it is achieved that building heat preservation and the body of wall purpose with the life-span.Together with the permanent composite thermal-insulating exterior formwork cast-in-situ concrete member such as beam column and shear wall with framework (frame is cut) structure is cast in, and firmly connect (tensile bearing capacity >=0.5Mpa) by connector, reach the technology requirement of Synchronization Design, synchronous construction, synchronization examination, it is achieved that building heat preservation and the body of wall purpose with the life-span.
3, adopt multi-layer structure design pattern, there is higher intensity and good heat-insulating property.Permanent composite thermal-insulating exterior formwork is made up of rock-wool heat insulation plate, inside and outside bonding enhancement layer and insulation transition zone etc., has higher mechanical strength, and can directly do exterior sheathing uses, and thermal and insulating performance is good, meets the standard-required of building energy conservation 65%.
4, adopt this structure fire technical method, there is good fire protecting performance.Inside and outside heat-insulation layer, main facade is coated with by cement polymer mortar protective layer; can being prevented effectively from the generation of fire phenomena in work progress, after architectural engineering is completed, outside heat-insulation layer, cement mortar protective course reaches more than 30mm; fire protecting performance is greatly improved, and meets the demand of security against fire.
5, novelty be provided with insulation transition zone, it is to avoid the common quality defect problems such as float coat hollowing, cracking.In permanent composite thermal-insulating exterior formwork structural shape designs, it is provided with insulation transition zone, alleviates the strain that heat insulation formwork produces because of environmental change, it is to avoid the common quality defect problems such as float coat hollowing, cracking.
6, through engineering approaches preformed patterns is adopted, it is ensured that product engineering quality.Permanent composite thermal-insulating exterior formwork all adopts batch production prefabricated, in use, opportunity without fraud, stop to use inferior materials and turn out substandard goods the generation of phenomenon, in concrete placement, the product quality of permanent composite thermal-insulating exterior formwork is carried out on-site verification, effectively prevent counterfeit and shoddy goods for architectural engineering.
7, integration composite thermal-insulating exterior formwork adopts multi-layer structure design, is provided with interior outboard bonds enhancement layer, improves the mechanical properties such as the anti-folding of heat insulation formwork, resistance to compression, shock resistance, reached cast in place concrete form use technology requirement, decreased template consumption.
8, heat insulation core material adopts high-performance pnenolic aldehyde foam heat-insulating board, and heat conductivity, less than 0.024W/m.K, is far superior to the 0.032W/m.K of mainstay material in the market, and owing to this material is thermosetting insulation material, has taken into account fire protecting performance excellent.Heat insulation core material adopts rock-wool heat insulation plate, and this material is the inorganic material that existing market insulation is best, it is ensured that the fire line of total system is entirely capable of the A level fire-protection rating specified that is up to state standards.
The present invention also carries that a kind of one is cast-in-place with concrete builds the prefabricated construction method exempting to dismantle the external wall system of overall assembling insulation exterior sheathing, comprises the following steps:
(1), prefabricated inner formword 100, precast facade compound heat preservation die plate monomer 210, precast facade be incubated outer mould bases 500；
(2), precast facade compound heat preservation die plate monomer is installed the shear connector 710 of the first prefabricated connector and is fixedly mounted with connector 720, with the second prefabricated connector 511, and be assembled in precast facade and be incubated on outer mould bases to be formed and be incubated prefabricated overall assembling of outer mould bases one with precast facade and be incubated exterior sheathing 200；
(3), it is incubated the cast-in-place wall steel bar 400 building shear wall of colligation inside exterior sheathing in prefabricated overall assembling,
(4), by precast facade being incubated outer mould bases 500 hoisted in position, and support fixing, install inner formword 100 in the inner side of wall steel bar, inner formword installs employing prior art, does not repeat at this；Again outer for precast facade insulation mould bases 400 is passed through the pre-stressed joint of split bolt assembly with inner formword 100；Described split bolt assembly adopts prior art, described split bolt assembly includes the wall bushing running through wall steel bar, the precast facade outer mould bases of insulation and inner formword, it is installed on the pretension bolt in wall bushing, inner formword is stretched out in one end of described pretension bolt, the other end of pretension bolt stretches out the pretension crossbeam on adventitia frame, is fitted with pre-load nut respectively at the two ends of pretension bolt；Then adjust precast facade and be incubated the verticality adjusting device 512 outside outer mould bases, adjust precast facade and be incubated the perpendicularity of outer mould bases, adjust after vertically, it is that benchmark adjusts split bolt assembly again according to adjusting the precast facade outer mould bases of insulation so that precast facade insulation outer mould bases pre-stressed joint parallel with inner formword；
(5), to casting concrete in the wall steel bar between inner formword and prefabricated overall assembling insulation exterior sheathing；
(6), reach after desirable strength, to remove inner formword and the precast facade outer mould bases of insulation until concrete, form cast-in-place shear wall, form the external wall system being incubated exterior sheathing, cast-in-place shear wall containing prefabricated overall assembling.
The invention have the advantages that in sum
1, heat-insulation layer is combined with assembled template component, save the construction of heat-insulation layer secondary, it is possible to increase construction wall heat-insulating property, improve build guality, meet country's exterior wall fireproof code requirement, body of wall and external thermal insulation simultaneous construction can be realized simultaneously, and then better contribute for energy-saving and emission-reduction.
2, prefabricated overall assembling warming plate adopts composite construction, and namely heat-insulation layer is arranged on the inner side of cement-based mortar outer coversheet, it is to avoid expose to the weather, and adds the durability of heat-insulation layer.
3, inner formword is set up in the inner side that prefabricated overall assembling insulation exterior sheathing is corresponding, assembly will be connected again be incubated outer mould bases fixing with prefabricated overall assembling insulation exterior sheathing and precast facade through inner formword and be connected, building exterior sheathing and external scaffolding can be saved, improve efficiency of construction, reduce cost, reduction of erection time.
4, adopt precast facade to be incubated outer mould bases, support powerful concrete deadweight, produced side force of vibrating when building can be resisted simultaneously；The problem solving prior art exterior sheathing bearing capacity difference, the problem that hollowing occurs in the junction caused because of heat-insulation layer deformation.
5, the connection with concrete wall is improved at precast concrete outer wall template at default connector, overcome the shearing force that heat-insulation plate for external is conducted oneself with dignity, improve fastness, extend the durability of heat-insulation layer, fundamentally solve exterior wall heat-preserving system and there is cracking, play the quality problems such as drum comes off；
6, the present invention can realize factory normalization production and processing, solves the quality uncontrollability brought of execute-in-place in construction process；
7, the present invention substantially realizes insulation and builds the same life-span.
In sum, the present invention increases heat-insulating property durability, reduces construction cost, reduction of erection time, saves the construction of heat-insulation layer secondary, it is possible to increase construction wall heat-insulating property, improves build guality, meet National Fire design specification, it is possible to reach fire prevention A grade standard.
The above is only to presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, every technical spirit according to the present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, belongs in the scope of technical solution of the present invention.
Claims (10)
1. cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing for one kind, it is characterised in that: include precast facade compound heat preservation die plate monomer, inner formword；Form prefabricated overall assembling insulation exterior sheathing after the splicing of precast facade compound heat preservation die plate monomer, form the cast-in-place inner chamber building shear wall between prefabricated overall assembling insulation exterior sheathing and inner formword, be banded with wall steel bar at interior intracavity；The inner side of described prefabricated overall assembling insulation exterior sheathing is cast-in-place shear wall, and described cast-in-place shear wall is to form with prefabricated overall assembling insulation exterior sheathing and the inner formword installed inside it for supporting cast in situs；
Described prefabricated overall assembling insulation exterior sheathing is fixedly mounted on precast facade and is incubated on outer mould bases, described precast facade is incubated outer mould bases and the prefabricated entirety being arranged on the precast facade outer mould bases of insulation assembles insulation exterior sheathing integral hoisting in the outside of wall steel bar, and corresponding with the inner formword inside wall steel bar, and in wall steel bar, it is provided with the split bolt assembly extending transversely through wall steel bar, the precast facade outer mould bases of insulation and inner formword；
Described precast facade compound heat preservation die plate monomer is provided with the be inserted in wall steel bar first prefabricated connector, and described first prefabricated connector is now cast in shear wall.
2. according to claim 1 cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing, it is characterized in that: described first prefabricated connector includes shear connector and/or is fixedly mounted with connector, described shear connector is arranged between adjacent precast facade compound heat preservation die plate monomer splicing seams；The described connector that is fixedly mounted with runs through whole precast facade compound heat preservation die plate monomer from the lateral surface of precast facade compound heat preservation die plate monomer, and stretches out precast facade compound heat preservation die plate monomer medial surface, and inserts in shear wall.
3. according to claim 2 cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing, it is characterized in that: described shear connector mainly includes shear resisting board, one end symmetry of described shear resisting board is bent with horizontal plate, and described plate is inserted in the pregroove marks that contiguous prefabricated exterior wall composite thermal insulation template monomer side is offered respectively；The other end of described shear resisting board is provided with Y type anchoring termination, described Y type anchoring termination and shear wall integrally cast-in-place build together with.
4. according to claim 2 cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing, it is characterized in that: be fixedly mounted with connector and mainly include the first pretension bolt, described first pretension bolt is set with the first pre-gland, described first pre-gland spiral-lock in the first pretension groove, described first pretension bolt is equipped with the first locking nut and the second locking nut on precast facade compound heat preservation die plate monomer lateral surface；Wherein pre-to the first pretension bolt and first gland is fastened on precast facade compound heat preservation die plate monomer by the first locking nut；Described second locking nut is positioned at the outer end of the first pretension bolt formed by integrally casting at shear wall.
5. according to claim 4 cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing, it is characterized in that: the first pretension bolt includes the first nut and the first screw rod, described first nut outer face is provided with and screws groove, and the inner face of the first nut is pyramidal structure；Described first pre-gland includes the first pre-gland body and installs the mounting hole of the first pretension bolt, and described mounting hole is the taper hole that the pyramidal structure with the first nut inner face matches；After described first pretension bolt and the first pre-gland and the first locking nut pretension, it is ensured that the first pre-outer face of gland, the first nut outer face in the same plane with the lateral surface of precast facade compound heat preservation die plate monomer.
6. according to claim 1 cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing, it is characterised in that: described precast facade is incubated the external mould frame that outer mould bases includes being surrounded by entablature, sill, left vertical beam and right vertical beam；Described external mould frame is also equipped with mast-up；
The medial surface entablature of described external mould frame, sill, left vertical beam and right vertical beam are positioned on same datum level；
In external mould frame described entablature, sill medial surface be provided with the first link being connected with precast facade compound heat preservation die plate monomer；
The lateral surface of described external mould frame is connected to outer support frame；
External mould frame lateral surface along between the left vertical beam of short transverse and right vertical beam at least provided with one group of pretension crossbeam；The split bolt assembly being connected with inner formword is installed in described pretension crossbeam；
In external mould frame, between entablature and sill, it is interval with several heat insulation formwork supports beam；Several heat insulation formworks support the medial surface of beam and are all positioned on same datum level with entablature, sill, left vertical beam and right vertical beam；The side of each heat insulation formwork support beam or both sides support depth of beam direction along heat insulation formwork and are provided with the second link being connected with precast facade compound heat preservation die plate monomer；Described second link is installed detachable second prefabricated connector；
In external mould frame described entablature, sill side be provided with the connection elongated hole connecting the outer mould bases of contiguous prefabricated exterior-wall heat insulation.
7. according to claim 6 cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing, it is characterised in that: described outer support frame is provided with precast facade and is incubated outer mould bases verticality adjusting device；Described adjusting apparatus includes supporting base, described support base is movably installed with adjusting screw, described adjusting screw is fitted with swivel nut, and described swivel nut is fixedly mounted on outer support frame.
8. according to claim 6 cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing, it is characterized in that: described second prefabricated connector includes the second pre-gland and the second pretension bolt, in the described second pre-gland spiral-lock the second pretension groove inside precast facade compound heat preservation die plate monomer, second pretension bolt stretches out and passes the first link and the second link from the inner side of precast facade compound heat preservation die plate monomer, equipped detachable 3rd pre-load nut on lateral surface second pretension bolt of the first link and the second link；
The second above-mentioned pretension bolt includes the second nut and the second screw rod, and described second nut outer face is provided with and screws groove, and the inner face of the second nut is pyramidal structure；Described second pre-gland includes the second pre-gland body and installs the mounting hole of the second pretension bolt, and described mounting hole is the taper hole that the pyramidal structure with the second nut inner face matches；After described second pretension bolt and the second pre-gland and the 3rd locking nut pretension, it is ensured that the second pre-outer face of gland, the second nut outer face in the same plane with the lateral surface of precast facade compound heat preservation die plate monomer.
9. described cast-in-place build the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing according to claim 1 to 8 is arbitrary; it is characterized in that: precast facade compound heat preservation die plate monomer, from including cement-based mortar outer coversheet, vitrification micropearl morttar transition zone, binding sand pulp layer, phenol formaldehyde foam heat-insulation layer or rock wool heat-preservation layer and cement-based mortar internal surface layer successively outside to inside, is wherein equipped with glass screen cloth or zinc-plated weldering net in cement-based mortar outer coversheet, binding sand pulp layer and cement-based mortar internal surface layer；It is provided with latticed reinforcement between binding sand pulp layer and phenol formaldehyde foam heat-insulation layer or rock wool heat-preservation layer.
10. the cast-in-place construction method building the prefabricated external wall system exempting to dismantle overall assembling insulation exterior sheathing, it is characterised in that: comprise the following steps:
(1), prefabricated inner formword, precast facade compound heat preservation die plate monomer, precast facade be incubated outer mould bases；
(2), precast facade compound heat preservation die plate monomer installs the first prefabricated connector and the second prefabricated connector, and be assembled in precast facade and be incubated on outer mould bases to be formed and be incubated prefabricated overall assembling of outer mould bases one with precast facade and be incubated exterior sheathing；
(3), the cast-in-place wall steel bar building shear wall of colligation inside prefabricated overall assembling insulation exterior sheathing；
(4), by precast facade it is incubated outer mould bases hoisted in position, and supports fixing, install inner formword in the inner side of wall steel bar, then precast facade is incubated outer mould bases with inner formword by the pre-stressed joint of split bolt assembly；Adjust the second locking nut being fixedly mounted with connector on prefabricated overall assembling insulation exterior sheathing；Then adjust precast facade and be incubated the verticality adjusting device outside outer mould bases, adjust precast facade and be incubated the perpendicularity of outer mould bases, adjust after vertically, it is that benchmark adjusts split bolt assembly again according to adjusting the precast facade outer mould bases of insulation so that precast facade insulation outer mould bases pre-stressed joint parallel with inner formword；
(5), to casting concrete in the wall steel bar between inner formword and prefabricated overall assembling insulation exterior sheathing；
(6), reach after desirable strength, to remove inner formword and the precast facade outer mould bases of insulation until concrete, form cast-in-place shear wall, form the external wall system being incubated exterior sheathing, cast-in-place shear wall containing prefabricated overall assembling.
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| CN111827531A (en) * | 2020-07-23 | 2020-10-27 | 中建三局第三建设工程有限责任公司 | Construction method of cast-in-place composite heat insulation system of prefabricated heat insulation external formwork |
| CN111894178A (en) * | 2020-08-10 | 2020-11-06 | 中国建筑第七工程局有限公司 | Wall body pouring method with heat preservation template |
| CN112064835A (en) * | 2020-09-14 | 2020-12-11 | 郭可伍 | Disassembly-free heat-preservation and decoration integrated template and production process thereof |
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