CN101914959A - Precast concrete inside heat insulation wall body - Google Patents
Precast concrete inside heat insulation wall body Download PDFInfo
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- CN101914959A CN101914959A CN2010102614052A CN201010261405A CN101914959A CN 101914959 A CN101914959 A CN 101914959A CN 2010102614052 A CN2010102614052 A CN 2010102614052A CN 201010261405 A CN201010261405 A CN 201010261405A CN 101914959 A CN101914959 A CN 101914959A
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Abstract
The invention relates to a precast concrete inside heat insulation wall body, which can effectively separate a cold bridge from a thermal bridge and has a lower heat transfer coefficient. The precast concrete inside heat insulation wall body is characterized in that: the two ends of a plurality of spaced heat insulation material connecting pieces of which the two ends are extended into inside and outside thin-shell wall plates respectively pass through reinforcing steel bars of the inside and outside wall plates and/or are interspersed with anti-drawing short sticks to form a tensile structure; the tensile structure, a compression-resistant structure and a shearing-resistant structure are respectively pre-buried in the four corners of the wall body at least; and/or the periphery of the wall body has an overall frame structure. An overall box type structure is formed, which not only effectively reduces a cold/thermal bridge phenomenon, makes the heat insulation wall body have the lower heat transfer coefficient, reduces a wall body heat transfer coefficient within 0.4 W/m<2>.K, but also remarkably improves the overall structural strength of a hollow heat insulation wall body, improves the shearing resistance of a wall plate and the connection strength with a building structure, and has various mechanical properties which completely meet the requirements on the outside wall of a building. The connecting pieces adopt hollow structures; and metal connecting pieces can be arranged and fixed in holes and are used as for fixing objects on a wall surface and used as scaffold supporting points so as to increase connection points between the wall body and the building structure.
Description
Technical field
The present invention be to the applicant in the further improvement of first to file precast concrete inside heat insulation wall body and perfect, relate in particular to and a kind ofly can effectively cut off cold and hot bridge, the precast concrete inside heat insulation wall body that thermal transmittance is lower.
Background technology
The applicant is at the serial prefabricated concrete assembling heat-preserving wall and the floor of first to file, for example Chinese patent 200710023502.62,200710132534.X, 200820033303.3,200920038302.2,200920046133.7,200910264184.1,201010115432.9 its structure is: inside and outside steel bar concrete wallboard, intermediate thermal insulating layer (for example EPS plate), adopt the steel bar concrete joint pin to form the overall structure heat-insulation wall plate between inside and outside wall board.Not only wall heat transfer coefficient is reduced to about 0.94 (the whole thick 20cm of wall, inside and outside single face wall thickness 4cm, insulation layer 12cm), obtained good heat-insulating and energy-saving effect, thoroughly changed body of wall heat-insulation and heat-preservation structure, make the body of wall insulating can with the same life-span of body of wall, in the period of application life, do not need any maintenance; And have good overall construction intensity, be a revolution to construction wall.Yet, unavoidably to produce heat bridge (thermal bridges) or cold bridge (cold bridges), thereby limit the further reduction of heat insulation wall thermal transmittance at the joint pin position owing to still adopt heat conductor steel bar concrete joint pin between interior wall face.
The disclosed prefabricated heat preservation wall body of Chinese patent CN101538903 proposes between the inside and outside wall board of band inner thermal insulating layer the FRP connector by " worker " font structure, and in the heat-preserving wall end U fiber type reinforced plastic dowel structure of inserting respectively in the inside and outside wall board is arranged.Though adopt the FRP connector to replace the steel bar concrete short column, can further reduce the hot coefficient that conducts heat, reduce cold and hot bridge, make the heat-preserving wall heat-proof quality improve major step again.But this structural heat-insulation heat-preserving wall, the FRP connector that adopts only two ends enlarged head (edge of a wing) put into the concrete metope, only depend on the concrete anti-pulling to make inside and outside wall board connect to form an integral body, yet concrete anti-pulling ability relatively a little less than, the easy stressed loose damage of connecting portion, cause the inside and outside wall board overall structure poor, particularly more weak for large-scale wall body structure globality.Secondly, during body of wall moulding cast, each FRP connector is by locating in the insulation EPS plate hole groove in the middle of inserting, the FRP connector of " yet worker " font connector structure, cause the EPS plate holes relatively large, the actual FRP connector of each design fixed point that causes is difficult to form stable position, makes troubles to casting and constructing.Besides, this structure hollow heat-preserving wall is failed to take into full account body of wall and is connected with the firm of structure, also is its deficiency.In addition, objectively the perpend wall of hollow heat-preserving wall is generally thinner, has only 4-6cm usually, when metope fixedly weight for example install an air-conditioner, need punch the hole of external and internal wall, overhaul scaffold in addition and also be difficult to fix at metope.Aforementioned deficiency still has is worth improved place.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provides a kind of not only thermal transmittance lower, and heat insulating ability is better, and good integrity, and structural strength is strong, can be fit to make large wall panel, pours into a mould precast concrete inside heat insulation wall body easy to make.
Another purpose of the present invention is to provide a kind of attached heavy precast concrete inside heat insulation wall body of metope that makes things convenient for.
The object of the invention realizes, the main improvement is to make to connect the middle heat-barrier material connector that external and internal wall becomes integral body, for example fibre-reinforced plastics (FRP) connector two ends are passed the metope reinforcing bar respectively and/or are installed with the anti-pulling stub, form high tensile with inside and outside wall board and pull out syndeton, and bury tension, resistance to compression, shearing resistance johning knot member underground four jiaos of bodies of wall at least, and/or the whole border structure of body of wall periphery, thereby significantly improved hollow heat-preserving wall overall construction intensity, overcome above-mentioned the deficiencies in the prior art, realized the object of the invention.Specifically, precast concrete inside heat insulation wall body of the present invention, comprise inside and outside alternate shell steel bar concrete wallboard and intermediate thermal insulating layer, and two ends stretch into numerous connectors of hot material separately of inside and outside shell wallboard, it is characterized in that heat-barrier material connector two ends are passed the inside and outside wall board reinforcing bar respectively and/or are interspersed with the anti-pulling stub to form tensile structure; At least body of wall is embedded with tension, resistance to compression, shear structure part respectively for four jiaos, and/or the body of wall periphery is whole border structure.
The present invention is said:
Inside and outside alternate shell steel bar concrete wallboard according to body of wall installation site (interior or exterior wall) and design strength requirement, can be a fine-stone concrete, also can haydite and/or light aggregate concrete, specifically look the strength of wall body requirement and determine that this belongs to prior art, so should be appreciated that of concrete be should be broad sense.Inside and outside wall board can be symmetrical thickness, also can be asymmetric thickness, and for example inner wall panel thickness can make inner wall panel as bearing wall greater than side fascia, for example sets up beam or as shear wall.
Heat-barrier material between two shell concrete walls is commonly used to be had: expansion polyphenyl plate (EPS plate), extruded polystyrene board (XPS plate), rock cotton board etc., and they have the thermal transmittance more much lower than concrete, and this also belongs to prior art.
Inside and outside wall board spaced heat material connector, main effect is to connect the hollow structure inside and outside wall board to become overall structure, from then on requiring to set out should be to have the inorganic of suitable intensity or organic non-metal material to make, they should have suitable intensity (satisfy and connect the inside and outside wall board requirement), guarantee to form the body of wall overall construction intensity, have less thermal transmittance and good heat-proof quality again, can in the prior art material, select, wherein use always fibre-reinforced plastics (FRP) is arranged, and the high strength macromolecule polymer material, this also is a prior art.Heat-barrier material connector two ends have the wallboard reinforcing bar to pass and/or intert the anti-pulling stub, main effect is the anti-pulling ability that improves connector and inside and outside wall board, improve the inside heat insulation wall body overall construction intensity, make it to reach practical requirement, this is important difference feature of this patent.The tensile connecting structure of this connector and inside and outside wall board has greatly improved the structural integrity of inside heat insulation wall body, and it is excellent wherein passing connector with the inside and outside wall board reinforcing bar again, and not only simply but also the material saving, and overall construction intensity is also high.There is enlarged head at a kind of more preferably two ends of connector, and for example " worker " font or " mute purine " type structure enlarge the two ends head and can strengthen bonding strength and globality with inside and outside concrete wall.Connect the heat-barrier material connector of inside and outside wall board, from the structural mechanics angle, comparatively suitable with the crisscross setting of spacing 30-70cm, not only economy but also can satisfy the building external envelope structure requirement of strength, if the perpend wall body thickness is big, then the connector spacing can strengthen, otherwise opposite.
At least body of wall is embedded with tension respectively for four jiaos, resistance to compression, the shear structure part, its effect also is to strengthen inside and outside wall board composite entity structural strength, and the body of wall bight is connected the anti-pulling ability with structure, its form of structure can have multiple, the metal connecting piece that for example pre-buried vertical wall is connected with structure (as the connecting band inner thread steel pipe), pre-buried tension muscle and resistance to compression piece combined structural member etc., this patent is a kind of to be preferably pre-buried by resistance to compression piece that is parallel to body of wall and tension muscle and hoisting connecting piece combined structural member perpendicular to body of wall, not only improves globality but also can be used for lifting and fixedly connected.According to the building structure requirement, this pre-buried tension, resistance to compression, shearing resistance and johning knot member can also be in the body of wall alternate settings in four limits up and down.
Equally.The whole border structure of body of wall periphery is the whole limit that connects inside and outside wall board, also be in order to strengthen inside and outside wall board composite entity structural strength, and body of wall limit portion is connected the anti-pulling ability with structure.
Hoisting connecting piece in four jiaos of pre-buried structural members of body of wall, a kind ofly be preferably tapped T type metal tube, T type shank is provided with perpendicular to the body of wall top and bottom, be used to the lifting part that is spirally connected, T-steel pipe transverse arm is used for being connected and fixed with building structure, and a kind of better length slightly is shorter than thickness of wall body and is recessed in the wall face setting, be recessed in the T type transverse arm other end of wall face, also be processed with internal thread,, can screw in screw or be connected with other connectors as long as contract steel pipe place wall face in cracking need utilize the time.But, understand that in response to this full internal thread metal straight pipe equally also is operable, just the lifting part that cooperates with it changes to some extent.
For making things convenient for metope attached heavy, a kind of more preferably heat-barrier material connector has hollow to be used to through hole, the hollow tube form, the one, can be inserted into corresponding connector, for example pass through cementing agent bonding connection part in the connector hole, or place expansion bolt, or to wearing bolt etc., be used for the metope fixed object, for example install an air-conditioner, fix maintenance scaffold etc.; The 2nd, can improve shearing resistance, the anti-pressure ability of connector by reinforcements such as interpolation reinforcing bars, adapt to large-scale or ultra-large type body of wall, for example 3.6*6m or 3.6*8m body of wall; The 3rd, can also be used for being connected usefulness near the hollow connector around the body of wall with the building structure enhancing.
In addition, in precast concrete inside heat insulation wall body thickness, can also make the self heat insulation wall of band ventilation stack by the hollow vent passages is set.Vent passages can be a horizontally set, also can be vertical setting, can also be laterally vertical the intersection or oblique setting, behind the assembled house, imports and exports position wall upper shed in the design ventilation, and ventilation opening is installed, and constitutes inside and outside ventilation formula and builds.
This patent precast concrete inside heat insulation wall body can be by the general building standard of China, and stock size is as follows: thickness of wall body 20-30cm, and panel 5-6cm, middle insulation layer 10-20cm, connector spacing 50-80cm can also specifically determine size according to designing requirement.
For further improving strength of wall body, can also in the base material batching of cast shell wall, add reinforcing agent and increase short fiber etc.
(certainly) heat-preserving wall in the prefabricated concrete of the present invention, with respect to prior art, because connecting the heat-barrier material connector two ends of inside and outside wall board is passed by wallboard reinforcing bar or horizontal stub, thereby the anti-pulling that forms higher-strength with inside and outside wall board is connected, and four jiaos of enhancing structures, and/or the whole border structure of body of wall periphery, thereby form whole box structure, not only effectively reduced cold and hot bridge phenomenon, make heat-preserving wall have lower thermal transmittance, and significantly improved hollow heat-preserving wall overall construction intensity, improved the wallboard shear resistance, and with the building structure bonding strength.(wall total thickness 20cm, the thick 5cm of inside and outside single face, insulation bed thickness 10cm, the wide 220cm of long *) after tested, wall heat transfer coefficient is reduced to 0.4W/m
2K is with interior (actual measurement 0.39), evenly distributed load 2246N/m
2, the degree 8mm during load standard, single bolt pulling capacity 66KN, single-point hanging force 1000N, test cube in the same condition resistance to compression load 344KN, every mechanical property satisfies the requirement of external wall fully.In addition, inside and outside wall board heat-barrier material connector hollow structure, can be provided with, fix (it is fixing, fixed to fastening that cementing agent is fixed, expanded) metal connecting piece in the hole, be used for the metope fixed object, the scaffold strong point, building annex such as awning or facing are installed, can also be according to the building structure needs, increase the tie point of body of wall and building structure, improve the overall construction intensity of assembled architecture.Tapped T type metal tube both can be used for body of wall assembling lifting, can be used for fixing with structure again, also helped the raising overall structure.Ventilation stack setting in the body of wall utilizes outside the room and indoor natural wind pressure reduction, can also reach natural ventilation, or install the small-sized fans forced ventilation additional, makes building that ventilatory (type of respiration building) be arranged.In addition, this patent structure can also be used for the applicant at the first to file floor slab structure.
Below in conjunction with an exemplary specific embodiment; essence of the present invention is further understood in exemplary illustration and help; but the embodiment detail only is for the present invention is described; do not represent the present invention to conceive whole technical schemes down; therefore should not be construed as the total technical scheme of the present invention is limited; some are In the view of the technician; the unsubstantiality that does not depart from the present invention's design increases and/or change; for example simple the change or replacement of technical characterictic to have same or similar technique effect all belongs to protection domain of the present invention.
Description of drawings
Fig. 1 is a precast concrete inside heat insulation wall body plane structure schematic diagram, and wherein B shows that connector is connected signal with the body of wall reinforcing bar.
Fig. 2 analyses and observe the cross section structure schematic diagram for Figure 1A-A.
Fig. 3 is that precast concrete inside heat insulation wall body is connected schematic cross-section with structure.
Fig. 4 is Fig. 3 B portion structure for amplifying schematic diagram.
The specific embodiment
Embodiment: referring to accompanying drawing, (certainly) heat-preserving wall in the prefabricated reinforced concrete, the steel bar concrete inside and outside wall board 1 and 2 that comprises alternate single face thickness 5cm, between inside and outside concrete wall the thick EPS plate insulation layer 5 of 10cm (body of wall gross thickness 20cm) is arranged, by spacing 50*50cm FRP connector 6 is arranged between inside and outside wall board, form integral prefabricated steel bar concrete inside heat insulation wall body.Each steel mesh reinforcement of forming by longitudinal reinforcement 3 and transverse reinforcement 4 in the inside and outside concrete wall (the wallboard requirement of strength is pressed in the steel mesh reinforcement design); The FRP connector is " worker " word or " mute purine " structure, and handle is axial hollow and is used to lead to, and the two ends enlarged head is passed fixing (Figure 1B) by the inside and outside wall board reinforcing bar respectively, stretches into respectively to stretch into inside and outside wall board and do not expose and be recessed in metope.Body of wall each face up and down all can have concavo-convex complementary sealing tongue and groove groove 7 or raised line 8, plays the percolation-proof effect.Body of wall is embedded with the lifting of T type for four jiaos and connects 10,4 FRP connectors 11 vertical with metope of steel pipe (also can be the wallboard interconnecting piece of an amplification), reaches tension, resistance to compression, a shearing resistance johning knot member that is parallel to FRP plate 12 compositions of metope, wherein the T-steel pipe is coated with resin fibre isolation layer 9, reduces the cold and hot bridge of hoisting connecting piece.The lifting of T type connects steel pipe 10, is welded to connect with wallboard concrete reinforcing bar simultaneously and gains in strength, and shank is provided with perpendicular to the body of wall top and bottom, and the horizontal end length of T-steel pipe slightly is shorter than thickness of wall body and is recessed in the wall face setting, and T-steel pipe shank and horizontal end all have internal thread.During installation, body of wall is fixed on the structure 14 by connector 13.
Preparation: in mould, suspend by the steel mesh reinforcement of Intensity Design, to penetrate in the steel mesh reinforcement by each FRP connector one end that design point is placed simultaneously, the concrete layer of cast design thickness, place EPS plate, bar, the piece of the perforation of connector position, ventilation stack is placed top mat, simultaneously reinforcing bar is passed in the head of connector upper end, cast upper strata concrete, maintenance is stacked to prescribed strength.
To those skilled in the art; under this patent design and specific embodiment enlightenment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; those of ordinary skills will recognize also can adopt additive method; or the substituting of known technology commonly used in the prior art; and the equivalence of feature changes or modification; mutual various combination between feature; for example assembled wall four limits can also be watered into the whole limit structure that inside and outside wall board links to each other; interior fill insulant material; and the change of heat-barrier material connector material; and in body of wall pre-buried air chimney; or the like unsubstantiality change, can be employed equally, can both realize this patent representation function and effect; launch for example no longer one by one to describe in detail, all belong to this patent protection domain.
Be easy description, the said steel concrete of the present invention, its " concrete " not only comprises concrete, also comprises haydite concrete, light weight aggregate concrete, and magnesia, magnesium chloride.Said body of wall comprises being used for building external revetment body, also comprises being used for the indoor partition wall plate.
Claims (10)
1. precast concrete inside heat insulation wall body, comprise inside and outside alternate shell steel bar concrete wallboard and intermediate thermal insulating layer, and two ends stretch into numerous connectors of hot material separately of inside and outside shell wallboard, it is characterized in that heat-barrier material connector two ends are passed the inside and outside wall board reinforcing bar respectively and/or are interspersed with the anti-pulling stub to form tensile structure; At least body of wall is embedded with tension, resistance to compression, shear structure part respectively for four jiaos, and/or the body of wall periphery is whole border structure.
2. according to the described precast concrete inside heat insulation wall body of claim 1, it is characterized in that there is enlarged head at heat-barrier material connector two ends.
3. according to the described precast concrete inside heat insulation wall body of claim 1, it is characterized in that heat-barrier material connector two ends have the inside and outside wall board reinforcing bar to pass respectively.
4. according to the described precast concrete inside heat insulation wall body of claim 1, it is characterized in that four jiaos of pre-buried respectively tension, resistance to compression, shear structure parts of body of wall, by resistance to compression piece that is parallel to body of wall and tension muscle and hoisting connecting piece combined structural member perpendicular to body of wall.
5. according to the described precast concrete inside heat insulation wall body of claim 4, it is characterized in that hoisting connecting piece is tapped T-steel pipe.
6. according to the described precast concrete inside heat insulation wall body of claim 5, it is characterized in that T-steel pipe transverse arm length slightly is shorter than thickness of wall body and is recessed in the wall face setting.
7. according to the described precast concrete inside heat insulation wall body of claim 1, it is characterized in that inner wall panel thickness is greater than side fascia.
8. according to claim 1,2,3,4,5,6 or 7 described precast concrete inside heat insulation wall bodies, it is characterized in that the heat-barrier material connector has hollow to be used to through hole.
9. described according to Claim 8 precast concrete inside heat insulation wall body is characterized in that having at least in the thickness of wall body hollow vent passages.
10. described according to Claim 8 precast concrete inside heat insulation wall body is characterized in that pouring into a mould in the shell wall base material batching reinforcing agent and short fiber is arranged.
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| CN2010102614052A CN101914959A (en) | 2010-08-24 | 2010-08-24 | Precast concrete inside heat insulation wall body |
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| CN2010102614052A CN101914959A (en) | 2010-08-24 | 2010-08-24 | Precast concrete inside heat insulation wall body |
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Cited By (4)
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| CN104120851A (en) * | 2014-07-11 | 2014-10-29 | 张跃 | Steel exterior wall with hanging seats |
| CN107663908A (en) * | 2017-11-02 | 2018-02-06 | 安徽建筑大学 | Connecting structure and connecting method for GRC composite thermal insulation external wall panel and main structure |
| CN112049273A (en) * | 2019-06-06 | 2020-12-08 | 上海环辉智能科技有限公司 | Self preservation temperature steel construction assembled wall body |
| CN113898091A (en) * | 2021-11-29 | 2022-01-07 | 中国二十二冶集团有限公司 | Convenient to use's assembled building wall connecting device |
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Application publication date: 20101215 |