CN102505778B - Precast concrete thermal insulating wall sandwiched with aluminum foils - Google Patents
Precast concrete thermal insulating wall sandwiched with aluminum foils Download PDFInfo
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- CN102505778B CN102505778B CN201110351258.2A CN201110351258A CN102505778B CN 102505778 B CN102505778 B CN 102505778B CN 201110351258 A CN201110351258 A CN 201110351258A CN 102505778 B CN102505778 B CN 102505778B
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Abstract
The invention belongs to the technical field of construction engineering, and particularly relates to a precast concrete thermal insulating wall sandwiched with aluminum foils. The thermal insulating wall is composed of a thermal insulating layer, foam concrete grids, a concrete internal wall plate, a concrete external wall plate and a fiber reinforced polymer connecting member, wherein longitudinally arranged reinforcing steel bars and transversally arranged reinforcing steel bars are arranged in the concrete internal wall plate and the concrete external wall plate; the thermal insulating layer is located between the concrete internal wall plate and the concrete external wall plate; the concrete internal wall plate and the concrete external wall plate are provided with the foam concrete grids; hole slots are formed in the foam concrete grids; the fiber reinforced polymer connecting member passes through the hole slots; and the ends of the thermal insulating wall are sealed by thin plastering. The invention provides the novel precast thermal insulating wall which realizes integration of bearing and thermal insulation; the wall has excellent thermal insulating performance, fire resistance and durability, and has wide application prospect in the field of construction engineering.
Description
Technical field
The invention belongs to construction engineering technical field, be specifically related to a kind of precast concrete thermal insulating wall sandwiched with aluminum foils.
Background technology
China is a building big country, and annual newly constructed house area is up to 17～1,800,000,000 square metres, and the energy that building directly consumes in construction and use procedure accounts for the more than 30% of the total power consumption of the whole society.Therefore, building energy conservation is the key of alleviating China's energy scarcity contradiction.
In recent years, energy-saving building technology becomes the hot research problem of global concern.Research shows, building accounts for 40% left and right of building overall heat consumption by peripheral structure dispersed heat.Therefore, the conservation measures of reinforcement peripheral structure is particularly important.Body of wall is the main body of space enclosing structure, and the heat-insulating property of its material therefor and insulation form directly affect the energy consumption of building.At present, the heat-preserving wall at home and abroad using is mostly combined wall.Combined wall generally adopts steel concrete as load bearing wall, and compound with energy-saving material.Common combined wall form has three kinds of inner thermal-insulation compounds wall, external heat insulating composite wall and sandwich heat preserving wall bodies.There is cold-heat bridge effect in internal thermal insulated wall form, easily cause the hollowing problems of crack of interior heat insulation system between interior exterior wall.External thermal insulated wall form is owing to being subject to the direct impact of sunlight, atmosphere pollution etc., and application life is lower and be unfavorable for fire prevention.
Compared with common heat-preserving wall; the heat-insulation material of sandwich heat preserving wall body is located at the centre of inner, external wall body of wall; therefore can effectively protect heat-insulation material to exempt from the destruction of extraneous factor (as solar radiation, rain drop erosion etc.); there is the advantages such as good endurance, heat-insulating property be secure, but equally also have some shortcomings:
having heat bridge phenomenon, there is heat bridge phenomenon in the metal junction of the beam of being everlasting, post, plate, internal and external beam drawknot place, especially sandwich wall, thereby reduces wall thermal insulating effect;
heat-insulation material can not meet the requirement of insulation and anti-fire simultaneously, and in sandwich heat preserving wall body, heat-insulation material generally comprises organic material and inorganic material two classes.Organic material is as better in the low heat-insulating property of thermal transmittance of polyphenyl plate (XPS/EPS) etc., but its burning-point is low, is unfavorable for anti-fire.Though and inorganic material can be better as burning-point high fireproofs such as thermal insulation mortars, its thermal transmittance is high, heat-insulating property is poor.
Summary of the invention
The object of the present invention is to provide a kind of precast concrete thermal insulating wall sandwiched with aluminum foils with good heat-insulating property, fire resistance and endurance quality.
The precast concrete thermal insulating wall sandwiched with aluminum foils that the present invention proposes, by insulation layer 2, foam concrete grid 3, concrete inner wall plate 4, concrete external wall panel 5 and connector 1, formed, it is characterized in that being provided with in concrete inner wall plate 4 interior lateral arrangement reinforcing bar 7, and be evenly distributed with interior longitudinal layout reinforcing bar 6 and foam concrete grid 3; In concrete external wall panel 5, be provided with outer lateral arrangement reinforcing bar 9, and be evenly distributed with export-oriented reinforcing bar 8 and the foam concrete grid 3 arranged; Insulation layer 2, between concrete inner wall plate 4 and concrete external wall panel 5, is equipped with hole slot in each foam concrete grid 3, and connector 1 is through this hole slot; Insulation layer 2 adopts plain bolt to be fixed on the exterior wall of heat-preserving wall in end, the end of heat-preserving wall adopts thin floated coat 10 to seal, and forms the air space of sealing.
In the present invention, described insulation layer 2 adopts aluminium foil film.
In the present invention, connector 1 adopts fiber-reinforced polymer connector.
In the present invention, described connector 1 is through foam concrete grid hole slot 3, and connector 1 two ends are anchored in respectively in concrete inner wall plate 4 and concrete external wall panel 5.
When the present invention constructs, first lay outer concrete wall form, and lay the vertical and horizontal layout reinforcing bar of outer body of wall, build outer concrete side fascia to outer thickness of wall body; Then foam concrete grid 3 is laid in concrete wall top in outside, and foam concrete grid 3 should be offered the connector hole slot of prior location, and the area of offering hole slot should be slightly larger than the section area of connector; Connector 1 is inserted in the hole slot in the foam concrete grid on side fascia; On foam concrete grid on side fascia, arrange insulation layer, and above insulation layer, lay inner wall panel foam concrete grid, and the connector hole slot of upper and lower sides foam concrete grid keeps centering, guarantee the hole slot of connector 1 through inside and outside wall board foam concrete grid; Inner wall panel foam concrete grid both sides piecemeal above insulation layer is arranged wooden form; On wooden form, lay internal layer concrete wall reinforcing bar concreting to position; When intensity reaches designing requirement, pump wooden form.
Connector is arranged in the foam concrete grid of inside and outside wall board, the reserved connector hole slot of location in advance of foam concrete grid, and hole slot punches and should be slightly larger than connector outside dimension and guarantee the mutual centering of foam concrete grid hole slot on inside and outside wall board.The spacing of fiber-reinforced polymer connector is decided by the anchoring strength of connector and both sides concrete panel and the stressed size of prefabricated heat preservation wall body.
In order to form the air space of sealing between inside and outside wall board, make body of wall there is good heat-insulating property, aluminium foil film end adopts plain bolt to be fixed on side fascia, and seals at the thin slurry of smearing of body of wall edge.
Beneficial effect of the present invention is:
(1) insulation layer that the present invention adopts is the aluminium foil insulation film being composited through corona high vacuum deposition aluminium lamination by macromolecular material, and it has high reflectance, high strength, and the feature such as fire-retardant, heat preservation and insulation is good, and has good endurance quality.
(2) between external and internal wall of the present invention, adopt foam concrete grid to form the air space of sealing, taking full advantage of aluminium foil film both can be to the external reflectance heat radiation in summer, can, to features such as indoor heat radiations in internal reflection winter, make body of wall there is good heat-insulating property again.
(3) in heat-preserving wall of the present invention, adopt fiber-reinforced polymer connector, reduced the thermal transmittance of body of wall, avoid " heat bridge " effect of producing due to indoor/outdoor temperature-difference, improved the heat-insulating property of body of wall.
Accompanying drawing explanation
Fig. 1 is prefabricated heat preservation wall body structural representation of the present invention.Wherein: (a) being body of wall elevation, is (b) A-A sectional drawing, is (c) B-B sectional drawing.
Fig. 2 is that fiber-reinforced polymer connector arranges constructional drawing in foam concrete grid.
Fig. 3 is body of wall end structure figure.
Number in the figure: 1 is connector, 2 is insulation layer, and 3 is foam concrete grid, and 4 is concrete inner wall plate, 5 is concrete external wall panel, and 6 is interior longitudinal layout reinforcing bar, and 7 is interior lateral arrangement reinforcing bar, 8 is outer longitudinal layout reinforcing bar, and 9 is outer lateral arrangement reinforcing bar, and 10 is thin floated coat.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1: prefabricated aluminium foil vacuum heat-preserving filled wall, is comprised of connector 1, insulation layer 2, foam concrete grid 3, concrete inner wall plate 4, concrete external wall panel 5, interior longitudinal layout reinforcing bar 6, interior lateral arrangement reinforcing bar 7, outer longitudinal layout reinforcing bar 8, outer lateral arrangement reinforcing bar 9.Interior longitudinally layout reinforcing bar 6 and interior lateral arrangement reinforcing bar 7 are distributed in concrete inner wall plate 4, and outer longitudinal layout reinforcing bar 8 and export-oriented layout reinforcing bar 9 are distributed in concrete external wall panel 5.Connector 1 adopts fiber-reinforced polymer connector 1, and its two ends are anchored in respectively in concrete inner wall plate 4 and concrete external wall panel 5.Insulation layer 2 adopts aluminium foil film, the heat-insulating film that described aluminium foil film adopts macromolecular material to be composited through corona high vacuum deposition aluminium lamination, between concrete inner wall plate 4 and concrete external wall panel 5, on concrete inside and outside wall board, be respectively equipped with foam concrete grid 3, in foam concrete grid 3, be provided with hole slot, fiber-reinforced polymer connector 1 is through this hole slot; The end of heat-preserving wall is provided with thin floated coat 10.
When body of wall is made, first lay outer concrete wall form, and lay outer longitudinal layout reinforcing bar 8 and the outer lateral arrangement reinforcing bar 9 of outer body of wall, build outer concrete side fascia to outer thickness of wall body; Then foam concrete grid 3 is laid in concrete wall top in outside, and foam concrete grid 3 should be offered the connector hole slot of prior location, and the area of offering hole slot should be slightly larger than the section area of connector; Fiber-reinforced polymer connector is inserted in the hole slot in the foam concrete grid on side fascia; On foam concrete grid on side fascia, arrange aluminium foil film, and above aluminium foil film, lay inner wall panel foam concrete grid 3, and the connector hole slot of upper and lower sides foam concrete grid keeps centering, guarantee the hole slot of fiber-reinforced polymer connector through inside and outside wall board foam concrete grid; Inner wall panel foam concrete grid both sides piecemeal above aluminium foil film is arranged wooden form; On wooden form, lay in internal layer concrete wall and longitudinally to arrange lateral arrangement reinforcing bar 7 in reinforcing bar 6 and concrete, and concreting is to position, when intensity reaches designing requirement, pumps wooden form; The aluminium foil film at body of wall edge adopts plain bolt to be fixed on the concrete external wall panel 5 of heat-preserving wall in end, the end of heat-preserving wall adopts the thin slurry sealing of smearing, and forms the air space of sealing and prevents that outside rainwater from infiltrating body of wall inside.
Claims (3)
1. a precast concrete thermal insulating wall sandwiched with aluminum foils, by insulation layer (2), foam concrete grid (3), concrete inner wall plate (4), concrete external wall panel (5) and connector (1), formed, it is characterized in that being provided with in concrete inner wall plate (4) interior longitudinal layout reinforcing bar (6) and interior lateral arrangement reinforcing bar (7); In concrete external wall panel (5), be provided with outer longitudinal layout reinforcing bar (8) and outer lateral arrangement reinforcing bar (9), insulation layer (2) is positioned between concrete inner wall plate (4) and concrete external wall panel (5) and forms two-layer air space, in air space, be provided with the strip concrete foam grid (3) of equidistant distribution, in each foam concrete grid (3), be equipped with hole slot, connector (1) is through this hole slot; Insulation layer (2) adopts plain bolt to be fixed on the inner side of the side fascia (5) of heat-preserving wall in end, the end of heat-preserving wall adopts thin floated coat (10) sealing, forms the air space of sealing; Described insulation layer (2) adopts aluminium foil film.
2. precast concrete thermal insulating wall sandwiched with aluminum foils according to claim 1, is characterized in that connector (1) adopts fiber-reinforced polymer connector.
3. precast concrete thermal insulating wall sandwiched with aluminum foils according to claim 1, it is characterized in that described connector (1) is through foam concrete grid (3), and connector (1) two ends are anchored in respectively in concrete inner wall plate (4) and concrete external wall panel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110351258.2A CN102505778B (en) | 2011-11-09 | 2011-11-09 | Precast concrete thermal insulating wall sandwiched with aluminum foils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110351258.2A CN102505778B (en) | 2011-11-09 | 2011-11-09 | Precast concrete thermal insulating wall sandwiched with aluminum foils |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102505778A CN102505778A (en) | 2012-06-20 |
| CN102505778B true CN102505778B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110351258.2A Expired - Fee Related CN102505778B (en) | 2011-11-09 | 2011-11-09 | Precast concrete thermal insulating wall sandwiched with aluminum foils |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111027126B (en) * | 2019-12-27 | 2022-12-23 | 三一筑工科技股份有限公司 | Method and device for determining distribution information of heat preservation connecting pieces and computing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5440845A (en) * | 1991-09-13 | 1995-08-15 | The Board Of Regents Of The University Of Nebraska | Precast concrete sandwich panels |
| CN2328726Y (en) * | 1997-03-19 | 1999-07-14 | 王小宁 | Inner and outer insulation layer for metal film thermal insulation building wall |
| CN101538903A (en) * | 2009-04-16 | 2009-09-23 | 同济大学 | Prefabricated heat preservation wall body |
| CN101644080A (en) * | 2009-08-14 | 2010-02-10 | 张建峰 | Compound sandwich wall and fabrication process and component thereof |
| CN201857673U (en) * | 2010-08-24 | 2011-06-08 | 张吉华 | Precast concrete inner thermal insulation wall |
| CN202000549U (en) * | 2011-03-11 | 2011-10-05 | 上海住总工程材料有限公司 | Prefabricated external wall panel using heat insulating layer with inorganic filling |
-
2011
- 2011-11-09 CN CN201110351258.2A patent/CN102505778B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5440845A (en) * | 1991-09-13 | 1995-08-15 | The Board Of Regents Of The University Of Nebraska | Precast concrete sandwich panels |
| CN2328726Y (en) * | 1997-03-19 | 1999-07-14 | 王小宁 | Inner and outer insulation layer for metal film thermal insulation building wall |
| CN101538903A (en) * | 2009-04-16 | 2009-09-23 | 同济大学 | Prefabricated heat preservation wall body |
| CN101644080A (en) * | 2009-08-14 | 2010-02-10 | 张建峰 | Compound sandwich wall and fabrication process and component thereof |
| CN201857673U (en) * | 2010-08-24 | 2011-06-08 | 张吉华 | Precast concrete inner thermal insulation wall |
| CN202000549U (en) * | 2011-03-11 | 2011-10-05 | 上海住总工程材料有限公司 | Prefabricated external wall panel using heat insulating layer with inorganic filling |
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| CN102505778A (en) | 2012-06-20 |
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Granted publication date: 20140416 Termination date: 20161109 |