CN102425250B - Assembling-type building prefabricated reinforced concrete inner heat preservation wall body and inner-outer wallboard connecting reinforced steel bar - Google Patents
Assembling-type building prefabricated reinforced concrete inner heat preservation wall body and inner-outer wallboard connecting reinforced steel bar Download PDFInfo
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- CN102425250B CN102425250B CN 201110256872 CN201110256872A CN102425250B CN 102425250 B CN102425250 B CN 102425250B CN 201110256872 CN201110256872 CN 201110256872 CN 201110256872 A CN201110256872 A CN 201110256872A CN 102425250 B CN102425250 B CN 102425250B
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Abstract
The invention relates to an assembling-type building prefabricated reinforced concrete inner heat preservation wall body and an inner-outer wallboard connecting reinforced steel bar, aims at improving the present prefabricated reinforced concrete inner heat preservation wall body, and is characterized in that: an axial connection reinforced steel bar in an alternate reinforced concrete short column is used for joining an H-shaped inner reinforced concrete wallboard and an H-shaped outer reinforced concrete wallboard, which are alternatively arranged, at least one section of the axial connection reinforced steel bar is wrapped by a heat insulation material with the heat conductivity being lower than that of the concrete, and the short concrete columns are separated from one another throughthe heat insulation material with the heat conductivity being lower than that of the concrete. On the premise that the overall structural strength of the inner heat preserving wall body is guaranteed, the cold-hot bridge phenomenon between the inner wallboard and the outer wallboard can be greatly reduced, and a heat conduction coefficient of each wall body is less than or equal to 0.45W/m<2> K; the cost of the connection short columns between the inner and the outer wallboards is greatly reduced, the cost of the connection short columns is slightly higher than that of the reinforced concreteshort column, and the cost of the connection short column is only one fourth of that of a fiberglass reinforced polyester (FRP) connection column. At least one section of the short-column connection reinforced steel bar in the axial direction is wrapped by the heat insulation material with low heat conductivity, the heat insulation material is simple to produce, a low-heat bridge connection reinforced steel bar is formed, a mold injection or immersion production way can be adopted, and the industrialized low-cost mass production can be realized. The axial connection reinforced steel bar in the connection concrete short column adopts an annular loop structure, the steel reinforced steel bar is greatly convenient to place, and the inner and the outer wallboard reinforced steel bars can be greatly conveniently connected with each other, the setting difficulty is not increased, and the mass production can be realized.
Description
Technical field
The present invention formerly applies for a patent the further improvement of 201010261405.2 " precast concrete inside heat insulation wall bodies " and perfect to the applicant, it is little to relate in particular to a kind of thermal transmittance, good heat insulating, precast reinforced concrete inside heat insulation wall body of the assembled architecture that cost is lower and inside and outside wall board connecting reinforcement.
Background technology
The applicant is at first to file series prefabricated reinforced concrete assembled architecture inside heat insulation wall body, as Chinese patent 200710023502.62,200710132534.X, 200820033303.3,200920038302.2,200920046133.7,200910264184.1,201010115432.9, the whole H type force structure system (box-shaped overall structure) that adopts of heat-preserving wall, the whole connection of alternate inside and outside wall board adopted alternate steel bar concrete short column.This structure inside heat insulation wall body, inside and outside wall board co-operation good integrity, satisfy the wall body structure intensity (every mechanical property satisfies the external wall requirement fully) of building requirements fully, changed body of wall heat-insulation and heat-preservation structure simultaneously, in adopting insulation make the body of wall insulating in body of wall with the same life-span of body of wall, not needing insulation layer is done any maintenance in the body of wall time limit in application life, is all good plug-in and assembled architecture inside heat insulation wall body of a kind of integral body and heat insulation effect.Yet between alternate inside and outside steel bar concrete wallboard is to be connected to form overall structure by alternate steel bar concrete short column, though the thermal insulation layer is arranged between inside and outside wall board, because steel bar concrete short column coefficient of thermal conductivity is relatively large, still there is bigger cold and hot bridge phenomenon, thereby limited the further reduction of heat insulation wall thermal transmittance, the wall face thermal transmittance is at 0.94 W/m in this heat-preserving wall actual measurement
2About K (the whole thick 20cm of wall, inside and outside perpend wall thickness of slab 4cm, EPS plate insulation layer 12cm), heat insulation requirement still has gap for height.
The prefabricated inside heat insulation wall body of Chinese patent CN101538903, realize whole the connection by FRP (glass fiber reinforced plastic) connector of " worker " font structure between inside and outside wall board, and the U fiber type reinforced plastic dowel structure of inserting respectively in the external and internal wall is arranged in the heat-preserving wall end.Owing to adopt the low relatively FRP connector of coefficient of thermal conductivity to replace steel bar concrete to connect short column, thereby reduced cold and hot bridge phenomenon greatly, further reduced thermal transmittance, make the heat-preserving wall heat-proof quality improve major step.But owing to connect the alternate FRP connector of inside and outside wall board only is that two ends enlarged head (edge of a wing) is put into the concrete metope, make external and internal wall connect to form an integral body by the concrete anti-pulling, because of concrete anti-pulling ability relatively a little less than, and interior exterior wall concrete plate is thinner relatively again, the easy stressed loose damage of connecting portion, it is not fine causing the external and internal wall overall structure, particularly more weak for large-scale wall body structure globality; Secondly, when concrete wall is built moulding, 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 structure, big head makes that the EPS plate holes is relatively large, cause the FRP connector of actual each design fixed point to be difficult to form accurate location, not only make troubles, and it is stressed to influence body of wall integral body to pouring construction.
The applicant formerly applies for a patent 201010261405.2, inside heat insulation wall body still adopts H type force structure system, FRP connector and inside and outside wall board connected mode among the CN101538903 have been improved, adopt heat-barrier material connector two ends to pass the inside and outside wall board reinforcing bar respectively and/or be interspersed with anti-pulling stub formation tension and take off structure, overcome the not strong deficiency of CN101538903 inside and outside wall board connection integrity.This inside heat insulation wall body actual detected wall heat transfer coefficient is reduced to 0.39W/m
2K (body of wall total thickness 20cm, inside and outside each 5cm of concrete thickness of slab, insulation bed thickness 10cm, the wide 220cm of long *).
Above-mentioned two patents, though propose to adopt the FRP joint pin of low heat conduction to replace the steel bar concrete short column to connect inside and outside wall board, though reduced the heat-preserving wall thermal transmittance by a relatively large margin, but FRP connector material and cost of manufacture are all higher, and consumption is bigger again in body of wall, connector batch process difficulty itself is bigger in addition, causes cost to increase more than the steel bar concrete short column; Secondly, the resistance to compression of FRP connector, shear behavior are worse than reinforced concrete pile relatively, need like this to be remedied by increasing the cross section, have increased inside and outside wall board joint pin cost especially, and identical stressed FRP joint pin cost is about 5 times of steel bar concrete joint pin; Besides, relative complex is laid in FRP connector location, has also increased the inside heat insulation wall body manufacture difficulty.These all cause applies the difficulty increase, and therefore still having 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 effect of heat insulation to reach the FRP connector substantially, and cost is far below FRP, and the body of wall prefabricated construction is more easy, is easy to the precast reinforced concrete inside heat insulation wall body of assembled architecture that obtains promoting.
Another purpose of the present invention is to provide the precast reinforced concrete inside heat insulation wall body inside and outside wall board of a kind of above-mentioned assembled architecture connecting reinforcement.
The present invention's first purpose realizes; mainly improving one is whole the connection with axial connecting reinforcement in the steel bar concrete short column of steel bar concrete inside and outside wall board to adopt thermal insulation protection; the 2nd, the concrete short column axially cuts off with the heat-barrier material that is lower than concrete heat conduction; both actings in conjunction have reduced reinforcing bar simultaneously and concrete conducts heat; thereby reduced cold and hot bridge between inside and outside wall board; overcome the deficiencies in the prior art, realized the object of the invention.Specifically, the precast reinforced concrete inside heat insulation wall body of assembled architecture of the present invention, comprise and be the precast reinforced concrete wall that the H structure has inner thermal insulator, it is characterized in that the inside and outside alternate steel bar concrete wallboard of H structure connects with axial connecting reinforcement in the alternate steel bar concrete short column, axial at least one section outsourcing heat conduction is lower than the heat-barrier material of concrete, and the heat-barrier material that the short column concrete axially has heat conduction to be lower than concrete cuts off at interval.
Another purpose of the present invention realizes, connects in the concrete short column of alternate inside and outside wall board axially that reinforcing bar adopts the circumferential band structure, and circumferential band axially at least one section outsourcing heat conduction is lower than the heat-barrier material of concrete.It is the precast reinforced concrete inside heat insulation wall body inside and outside wall board of assembled architecture of the present invention connecting reinforcement, it is characterized in that connecting in the steel bar concrete short column of inside and outside wall board axially that connecting reinforcement is the circumferential band structure, circumferential band axially at least one section outsourcing heat conduction is lower than the heat-barrier material of concrete.
Among the present invention.
The prefabricated interior insulation steel bar concrete body of wall that is the H structure, its structure is same as the said applicant of background and formerly applies for a patent the internal thermal insulated wall body structure, inside and outside alternate hollow shell steel bar concrete wallboard is arranged, filling heat insulation preservation material (for example light heat-insulation and heat-preservation material) in the hollow, adopt a plurality of alternate steel bar concrete short columns arranged side by side to connect between alternate inside and outside steel bar concrete wallboard, form the good prefabricated inside heat insulation wall body of overall structure.According to common architectural design requirement, for example precast reinforced concrete inside heat insulation wall body, total thickness 150-250mm, outer reinforcement concrete thickness of slab 40-60mm, internal layer steel bar concrete thickness of slab 30-50mm, isolation layer 80-140mm (for example polyphenyl plate or extruded sheet).Body of wall specific design size can require to determine according to building requirements and/or location.
Axial connecting reinforcement in the steel bar concrete short column connects inside and outside wall board reinforcing bar usefulness, and directly reinforcing bar also can be two bar with hooked ends, can also be the circumferential band structure reinforcing bars.Axial at least one section outsourcing heat conduction is lower than the heat-barrier material of concrete, and main effect is to form resistance of heat transfer by the outsourcing heat-barrier material, reduces inside and outside wall board and produces cold and hot bridge by the reinforcing bar heat transfer, thereby reduce the self heat insulation wall thermal transmittance.Select adopting axially at least one section outsourcing heat-barrier material, mainly is with the heat-barrier material consideration that reduces cost for few.
The concrete short column axially has the heat-barrier material that is lower than concrete heat conduction to cut off at interval, main effect is to cut off the concrete short column heat conduction of inside and outside wall board by high relatively heat conduction to produce cold and hot bridge, reduce heat-insulating property, make high relatively reinforcing bar and the concrete of heat transfer all form good heat rejection like this, acting in conjunction has reduced the cold and hot bridge of inside and outside wall board.Cut off the position, a kind of outsourcing of reinforcing bar more fortunately heat-barrier material section (thermal insulation protection section) has better reduction heat transfer effect.
The low thermal conductivity heat-insulating material can select for use cost low relatively, and the material that coefficient of thermal conductivity is lower than concrete at least conducts heat to reach actual reduction, for example can be glass fiber reinforced plastic, low heat-conducting resin (glue), low heat-conducting plastic, low heat conduction nonmetals such as bar planting glue for building.And these materials are used for reinforcing bar and coat outward, both can annotate coating by mould, also can flood coating, are fit to industrialized mass production, greatly reduce the coating manufacturing cost.
Connect reinforcing bar in the alternate concrete short column of inside and outside wall board, adopt the circumferential band structure, can simplify being connected of reinforcing bar and inside and outside wall board reinforcing bar in the concrete short column greatly, and convenient the placement, the mode of penetrating that only need adopt circumferential band structure inside and outside wall board reinforcing bar can realize that existing inside and outside wall board reinforcing bar connects, just can form connect the short column reinforcing bar is connected with the inside and outside wall board steel bar overall stressed jointly, thereby omission is welded to connect, the colligation connection.The reinforcing bar circumferential band, a kind of better rectangular, each short column only need adopt a rectangle hoop to get final product.
The present invention relates generally to the heat insulation improvement of alternate connection short column between prefabricated inside heat insulation wall body inside and outside wall board (forming whole H structure), and what all the other did not relate to implements in first to file series of patents and norm of construction by the applicant, and can increase other additional structure functions.For example inside and outside wall board thickness is dissymmetrical structure, and side fascia thickness is greater than inner wall panel; Be added with reinforcing agent in the inside and outside wall board concrete and strengthen short fiber; Precast wall body at least four angles are embedded with reinforcing bar in the body of wall and are connected and tapped straight type or T type connection steel pipe, are used for the body of wall lifting, are connected and fixed; Be provided with in the body of wall from and/or the transversal ventilation road; And be provided with installation pipe etc.
The precast reinforced concrete inside heat insulation wall body of assembled architecture of the present invention, with respect to prior art, because inside and outside wall board connecting reinforcement short column adopts aforementioned structure to improve, not only guaranteeing under the inside heat insulation wall body overall construction intensity, greatly reduce cold and hot bridge phenomenon between inside and outside wall board, make prefabricated inside heat insulation wall body have low thermal transmittance and better heat-insulating property, all kinds of wall heat transfer coefficient≤0.45W/m
2K (insulation bed thickness 10cm adopts polyphenyl plate heat insulation for test body of wall total thickness 20cm, the thick 5cm of inside and outside reinforced concrete slab single face, the axial connecting reinforcement outsourcing of short column FRP material, and actual measurement wall heat transfer 0.39 W/m2K, other every indexs all meet the body of wall standard); And connect the short column cost between inside and outside wall board and reduce greatly, a little higher than applicant is in first to file steel bar concrete short column structure patent, have only low heat conduction the FRP joint pin 1/4, help the popularization of inside heat insulation wall body.Adopt this patent structure simultaneously, do not increase substantially and build difficulty.The axial at least one section outsourcing low thermal conductivity heat-insulating material of short column connecting reinforcement is simple, forms the low-heat bridging and connects reinforcing bar, can adopt mould to annotate or impregnation method production, is fit to the low-cost batch process of industrialization.Connect in the concrete short column axially that connecting reinforcement adopts the circumferential band structure, greatly facilitate reinforcing bar and place and is connected, do not increase and difficulty is set, the suitable batch process of its technology with the integral body of inside and outside wall board reinforcing bar.This patent steel bar concrete inside heat insulation wall body keeps the good force structure of inside heat insulation wall body H structure, has simultaneously near the low heat conduction of FRP joint pin, reach steel bar concrete short column low cost and build and make things convenient for advantage, forming this patent characteristic, be different from prior art, is the major reform to the assembling heat-preserving wall.
Below in conjunction with some exemplary embodiments; 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 that the precast reinforced concrete inside heat insulation wall body one of the present invention is to the cross section structure schematic diagram.
Fig. 2 for the precast reinforced concrete inside heat insulation wall body of the present invention another to the cross section structure schematic diagram.
Fig. 3 is that Fig. 1,2 planes are to the cross section structure schematic diagram.
Fig. 4 connects the bar construction schematic diagram for the preferred low-heat bridging of inside and outside wall board of the present invention.
Fig. 5 is Fig. 4 A-A cross section structure schematic diagram.
Fig. 6 is the another kind of cross section structure schematic diagram of Fig. 4 A-A.
The specific embodiment
Embodiment 1: referring to Fig. 1-5, the precast reinforced concrete inside heat insulation wall body of the present invention, alternate interior steel bar concrete wallboard 7 and outer steel bar concrete wallboard 10 (steel mesh reinforcement 6 by strength of wall body requirement design is respectively arranged in it) are arranged, respectively there is alternate steel bar concrete short column 5 to connect to form whole H type structure between two alternate concrete walls in length and breadth, hollow bulb between inside and outside wall board is filled with the EPS polystyrene board 8 of low heat conduction, form whole thick 200mm, interior wall thickness of slab 40mm, exterior wall thickness of slab 50mm, the precast reinforced concrete inside heat insulation wall body of insulation bed thickness 110mm.
Axial connecting reinforcement adopts rectangle hoop reinforcing steel bar 4 in the steel bar concrete short column of connection inside and outside wall board, is sheathed on inside and outside wall board reinforcing bar 1 outside, and axial side fascia section at least is surrounded by the heat-barrier material 3 (for example FRP) that heat conduction is lower than concrete outward; Each connects concrete square post reinforcing bar coating section has polystyrene board 9 heat to cut off (the concrete short column is axially cut off by low Heat Conduction Material).Heat-preserving wall at least around in the thickness of angle, be placed with roughly and body of wall uniform thickness female straight shape steel pipe in two ends or T-steel pipe (not providing among the figure) at least, be used for the lifting of precast wall body and install and fix.In addition, connect axial connecting reinforcement in the inside and outside wall board steel bar concrete short column, Heat Conduction Material is hanged down in outsourcing, can also be as Fig. 6 cross section structure, or other cross section structures.
Embodiment 2: as embodiment 1, horizontal and/or vertical hollow vent passages is arranged in the precast reinforced concrete inside heat insulation wall body thickness, be used for the building natural ventilation.
Embodiment 3: as described above, in the precast reinforced concrete inside heat insulation wall body thickness installation pipe is arranged.
Embodiment 4: as described above, body of wall each face thickness face up and down all has concavo-convex complementary sealing tongue and groove groove or raised line, plays the effect of assembling seepage control of wall water.
Embodiment 5: as described above, be added with reinforcing agent and/or strengthen short fiber in the inside and outside concrete wall base material batching.
Embodiment 6: as described above, auxilliary various decoration panels or the decorative paint of being equipped with of precast reinforced concrete inside heat insulation wall body wall face forms the prefabricated inside heat insulation wall body that belt surface is decorated, thereby finishes the decoration of building exterior wall face on factory and ground.
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 inside and outside wall board thickness and concrete change; the change of heat insulating material, the change of wall size, inside and outside wall board adopts symmetrical structure; axial connecting reinforcement adopts other forms in the connection concrete short column; 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 bar concrete wallboard of the present invention, its " concrete " not only comprises ordinary concrete, also comprises haydite concrete, light weight aggregate concrete, and magnesia, magnesium chloride, material is looked the body of wall position and is selected.Said body of wall comprises being used for building external revetment body, also comprises being used for the indoor partition wall body.
Claims (10)
1. the precast reinforced concrete inside heat insulation wall body of assembled architecture, comprise and be the precast reinforced concrete wall that the H structure has inner thermal insulator, it is characterized in that the inside and outside alternate steel bar concrete wallboard of H structure connects with axial connecting reinforcement in the alternate steel bar concrete short column, axial at least one section outsourcing heat conduction is lower than the heat-barrier material of concrete, and the heat-barrier material that the short column concrete axially has heat conduction to be lower than concrete cuts off at interval.
2. according to the precast reinforced concrete inside heat insulation wall body of the described assembled architecture of claim 1, it is characterized in that inside and outside wall board concrete thickness is dissymmetrical structure, side fascia thickness is greater than inner wall panel.
3. according to claim 1 or the precast reinforced concrete inside heat insulation wall body of 2 described assembled architectures, it is characterized in that having in the thickness of angle around body of wall at least roughly and body of wall uniform thickness, female straight shape steel pipe in two ends or T-steel pipe at least.
4. according to claim 1 or the precast reinforced concrete inside heat insulation wall body of 2 described assembled architectures, it is characterized in that horizontal and/or vertical hollow vent passages is arranged in the precast wall body thickness.
5. according to claim 1 or the precast reinforced concrete inside heat insulation wall body of 2 described assembled architectures, it is characterized in that in the precast wall body thickness installation pipe being arranged.
6. according to claim 1 or the precast reinforced concrete inside heat insulation wall body of 2 described assembled architectures, it is characterized in that precast wall body up and down each thickness face concavo-convex complementary sealing tongue and groove groove or raised line are all arranged.
7. according to claim 1 or the precast reinforced concrete inside heat insulation wall body of 2 described assembled architectures, it is characterized in that auxilliary various decoration panels or the decorative paint of being equipped with of precast wall body wall face.
8. according to claim 1 or the precast reinforced concrete inside heat insulation wall body of 2 described assembled architectures, it is characterized in that reinforcing agent being arranged and/or strengthening short fiber in the inside and outside concrete wall base material batching.
9. the precast reinforced concrete inside heat insulation wall body inside and outside wall board of assembled architecture connecting reinforcement is characterized in that connecting in the steel bar concrete short column of inside and outside wall board axially that connecting reinforcement is the circumferential band structure, and circumferential band axially at least one section outsourcing heat conduction is lower than the heat-barrier material of concrete.
10. according to the precast reinforced concrete inside heat insulation wall body inside and outside wall board of the described assembled architecture of claim 9 connecting reinforcement, it is characterized in that the circumferential band reinforcing bar is rectangular.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110256872 CN102425250B (en) | 2011-09-02 | 2011-09-02 | Assembling-type building prefabricated reinforced concrete inner heat preservation wall body and inner-outer wallboard connecting reinforced steel bar |
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|---|---|---|---|
| CN 201110256872 CN102425250B (en) | 2011-09-02 | 2011-09-02 | Assembling-type building prefabricated reinforced concrete inner heat preservation wall body and inner-outer wallboard connecting reinforced steel bar |
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| CN102425250A CN102425250A (en) | 2012-04-25 |
| CN102425250B true CN102425250B (en) | 2013-07-24 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908859A (en) * | 2016-05-16 | 2016-08-31 | 苏州市世好建材新技术工程有限公司 | Heat-preservation precast wall body and assembled house |
| CN109057077A (en) * | 2018-09-05 | 2018-12-21 | 德睿盛兴（大连）装配式建筑科技有限公司 | Green building integration band extends to form the assembled wallboard and application method of gusset |
| CN109024978A (en) * | 2018-09-05 | 2018-12-18 | 德睿盛兴（大连）装配式建筑科技有限公司 | A kind of energy-saving heat preserving fabricated shear wall plate and production method |
| CN110629929B (en) * | 2019-09-25 | 2021-05-28 | 吉林建筑大学 | Block assembled building side fascia of steel cold bridge |
| CN114922317B (en) * | 2022-05-31 | 2023-06-09 | 江西中一梦园住宅工业有限公司 | Fabricated house adopting autoclaved aerated concrete plate |
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