CN102505778A - 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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- CN102505778A CN102505778A CN2011103512582A CN201110351258A CN102505778A CN 102505778 A CN102505778 A CN 102505778A CN 2011103512582 A CN2011103512582 A CN 2011103512582A CN 201110351258 A CN201110351258 A CN 201110351258A CN 102505778 A CN102505778 A CN 102505778A
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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 the sandwich aluminium foil heat-preserving wall of a kind of precast concrete.
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 accounts for more than 30% of the total power consumption of the whole society.Therefore, building energy conservation is a key of alleviating China's energy scarcity contradiction.
In recent years, energy-saving building technology becomes the hot research problem that the whole world is paid close attention to.Research shows that building accounts for about 40% of building overall heat consumption through the 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 influence the energy consumption of building.At present, the heat-preserving wall that at home and abroad uses mostly is 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 and hot bridge effect in the internal thermal insulated wall form between interior exterior wall, the hollowing problems of crack of thermal insulation system in being prone to cause.The external thermal insulated wall form is owing to receive the direct influence of sunlight, atmosphere pollution etc., and application life is lower and be unfavorable for fire prevention.
Compare 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 (like solar radiation, rain drop erosion etc.); Have advantages such as good endurance, heat-insulating property be secure; But equally also have some shortcomings: there is heat bridge phenomenon in
; Heat bridge phenomenon appears in the be everlasting metal junction of beam, post, plate, internal and external beam drawknot place, especially sandwich wall, thereby reduces the wall thermal insulating effect;
heat-insulation material can not satisfy the requirement of insulation and anti-fire simultaneously, and heat-insulation material generally comprises two types of organic material and inorganic material in the sandwich heat preserving wall body.Low heat insulating ability such as the thermal transmittance of organic material such as polyphenyl plate (XPS/EPS) etc. can be better, is unfavorable for anti-fire but its burning-point is low.Though and burning-point high fireproofs such as inorganic material such as thermal insulation mortar can be better, its thermal transmittance is high, heat-insulating property is relatively poor.
Summary of the invention
The object of the present invention is to provide a kind of sandwich aluminium foil heat-preserving wall of precast concrete with good heat-insulating property, fire resistance and endurance quality.
The sandwich aluminium foil heat-preserving wall of precast concrete that the present invention proposes; Form by insulation layer 2, foam concrete grid 3, concrete inner wall panel 4, concrete external wall panel 5 and connector 1; Lateral arrangement reinforcing bar 7 in it is characterized in that being provided with in the concrete inner wall panel 4, and vertically arrange reinforcing bar 6 and foam concrete grid 3 in being evenly distributed with; Be provided with outer lateral arrangement reinforcing bar 9 in the concrete external wall panel 5, and be evenly distributed with export-oriented reinforcing bar 8 and the foam concrete grid 3 arranged; Insulation layer 2 is equipped with hole slot in each foam concrete grid 3 between concrete inner wall panel 4 and concrete external wall panel 5, connector 1 passes this hole slot; Insulation layer 2 adopts plain bolt to be fixed on the exterior wall of heat-preserving wall in the end, thin floated coat 10 sealings are adopted in the end of heat-preserving wall, form the closed air interbed.
Among the present invention, said insulation layer 2 adopts the aluminium foil film.
Among the present invention, connector 1 adopts the fiber-reinforced polymer connector.
Among the present invention, said connector 1 passes foam concrete grid hole slot 3, and connector 1 two ends are anchored in respectively in concrete inner wall panel 4 and the concrete external wall panel 5.
Lay the outer concrete wall form when the present invention constructs earlier, 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; Foam concrete grid 3 is laid in concrete wall top in the outside then, 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; In the hole slot in the foam concrete grid on the connector 1 insertion side fascia; Arrange insulation layer on the foam concrete grid on the external wall board; 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, guarantees that connector 1 passes the hole slot of 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 and concreting to the position; When treating that intensity reaches designing requirement, take out wooden form.
Connector is arranged in the foam concrete grid of inside and outside wall board, and the foam concrete grid is reserved the connector hole slot of location in advance, and hole slot punches and should be slightly larger than the connector outside dimension and guarantee the mutual centering of foam concrete grid hole slot on the 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 between inside and outside wall board, to form the closed air interbed, make body of wall have good heat-insulating property, aluminium foil film end adopts plain bolt to be fixed on the 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 adopts of the present invention is the aluminium foil insulation film that is composited through corona high vacuum deposition aluminium lamination by macromolecular material, and it has high reflectance, high strength, and characteristics such as fire-retardant, heat preservation and insulation is good, and has the favorable durability ability.
(2) adopt the foam concrete grid to form the closed air interbed between the external and internal wall of the present invention; Having made full use of the aluminium foil film both can be to the external reflectance heat radiation in summer; Can make body of wall have good heat-insulating property to internal reflection indoor characteristics such as heat radiation in winter again.
(3) adopt the fiber-reinforced polymer connector in the heat-preserving wall of the present invention, reduced the thermal transmittance of body of wall, avoid " heat bridge " effect of producing owing to indoor/outdoor temperature-difference, improved the heat-insulating property of body of wall.
Description of drawings
Fig. 1 is a prefabricated heat preservation wall body structural representation of the present invention.Wherein: (a) being the body of wall elevation, (b) is the A-A sectional drawing, (c) is the B-B sectional drawing.
Fig. 2 is provided with constructional drawing for the fiber-reinforced polymer connector in the foam concrete grid.
Fig. 3 is body of wall end structure figure.
Label among the figure: 1 is connector, and 2 is insulation layer, and 3 is the foam concrete grid, and 4 is the concrete inner wall panel; 5 is concrete external wall panel, and 6 is interior vertical layout reinforcing bar, and 7 is interior lateral arrangement reinforcing bar; 8 is the outer reinforcing bar of vertically arranging, 9 is outer lateral arrangement reinforcing bar, and 10 are thin floated coat.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Embodiment 1: prefabricated aluminium foil vacuum heat-preserving filled wall, form by connector 1, insulation layer 2, foam concrete grid 3, concrete inner wall panel 4, concrete external wall panel 5, interior vertical layout reinforcing bar 6, interior lateral arrangement reinforcing bar 7, outer reinforcing bar 8, the outer lateral arrangement reinforcing bar 9 vertically arranged.Interior vertically layout reinforcing bar 6 is distributed in the concrete inner wall panel 4 with interior lateral arrangement reinforcing bar 7, and vertical outward reinforcing bar 8 and export-oriented layout reinforcing bar 9 arranged is distributed in the 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 panel 4 and the concrete external wall panel 5.Insulation layer 2 adopts the aluminium foil film; The heat-insulating film that said aluminium foil film adopts macromolecular material to be composited through corona high vacuum deposition aluminium lamination; Between concrete inner wall panel 4 and concrete external wall panel 5; Be respectively equipped with foam concrete grid 3 on the concrete inside and outside wall board, be provided with hole slot in the foam concrete grid 3, fiber-reinforced polymer connector 1 passes this hole slot; The end of heat-preserving wall is provided with thin floated coat 10.
Lay the outer concrete wall form when body of wall is made earlier, and lay outer vertical layout reinforcing bar 8 and outer lateral arrangement reinforcing bar 9 of outer body of wall, build outer concrete side fascia to outer thickness of wall body; Foam concrete grid 3 is laid in concrete wall top in the outside then, 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; The fiber-reinforced polymer connector is inserted in the hole slot in the foam concrete grid on the side fascia; Arrange the aluminium foil film on the foam concrete grid on the external wall board; And above the 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, guarantees that the fiber-reinforced polymer connector passes the hole slot of inside and outside wall board foam concrete grid; Inner wall panel foam concrete grid both sides piecemeal above the aluminium foil film is arranged wooden form; On wooden form, lay and vertically arrange lateral arrangement reinforcing bar 7 in reinforcing bar 6 and the concrete in the internal layer concrete wall, and concreting when treating that intensity reaches designing requirement, is taken out wooden form to the position; 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 the end, the end of heat-preserving wall is adopted to approach and smeared the slurry sealing, forms the closed air interbed and prevents that outside rainwater from infiltrating body of wall inside.
Claims (4)
1. sandwich aluminium foil heat-preserving wall of precast concrete; Form by insulation layer (2), foam concrete grid (3), concrete inner wall panel (4), concrete external wall panel (5) and connector (1); Lateral arrangement reinforcing bar (7) in it is characterized in that being provided with in the concrete inner wall panel (4), and vertically arrange reinforcing bar (6) and foam concrete grid (3) in being evenly distributed with; Be provided with outer lateral arrangement reinforcing bar (9) in the concrete external wall panel (5), and be evenly distributed with outer reinforcing bar (8) and the foam concrete grid (3) vertically arranged; Insulation layer (2) is positioned between concrete inner wall panel (4) and the concrete external wall panel (5), is equipped with hole slot in each foam concrete grid (3), and connector (1) passes this hole slot; Insulation layer (2) adopts plain bolt to be fixed on the exterior wall of heat-preserving wall in the end, thin floated coat (10) sealing is adopted in the end of heat-preserving wall, forms the closed air interbed.
2. the sandwich aluminium foil heat-preserving wall of precast concrete according to claim 1 is characterized in that said insulation layer (2) adopts the aluminium foil film.
3. the sandwich aluminium foil heat-preserving wall of precast concrete according to claim 1 is characterized in that connector (1) adopts the fiber-reinforced polymer connector.
4. the sandwich aluminium foil heat-preserving wall of precast concrete according to claim 1 it is characterized in that said connector (1) passes foam concrete grid hole slot (3), and connector (1) two ends is anchored in respectively in concrete inner wall panel (4) and the 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 true CN102505778A (en) | 2012-06-20 |
| CN102505778B 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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| CN (1) | CN102505778B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111027126A (en) * | 2019-12-27 | 2020-04-17 | 三一筑工科技有限公司 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111027126A (en) * | 2019-12-27 | 2020-04-17 | 三一筑工科技有限公司 | Method and device for determining distribution information of heat preservation connecting pieces and computing equipment |
| 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 |
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| CN102505778B (en) | 2014-04-16 |
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