CN203145234U

CN203145234U - Heat-preservation composite wall

Info

Publication number: CN203145234U
Application number: CN 201320127464
Authority: CN
Inventors: 谭强
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2013-03-20
Filing date: 2013-03-20
Publication date: 2013-08-21
Anticipated expiration: 2023-03-20

Abstract

The utility model discloses a heat-preservation composite wall which is made from straws, and is good in heat preservation effect, energy-saving and environment-friendly. The heat-preservation composite wall comprises two cuboid concrete protective bodies, namely a first concrete protective body and a second concrete protective body, wherein a cuboid straw core is arranged between the first concrete protective body and the second concrete protective body, the first concrete protective body and the second concrete protective body are contacted with two parallel and opposite faces of the straw core respectively, a first reinforcing mesh is arranged in the first concrete protective body, a second reinforcing mesh is arranged in the second concrete protective body, the first reinforcing mesh is connected with the second reinforcing mesh through inclined steel bars connected with the straw core, and an included angle between the inclined steel bars and opposite faces is 45-60 degrees.

Description

Composite insulation wall

Technical field

The utility model relates to the composite insulation wall that a kind of building field is used.

Background technology

China is populous, a energy and soil country in short supply, and energy utilization rate is not high, 30% of national building energy consumption account whole nation total energy consumption, and the potentiality of building energy conservation are very big.The exploitation of novel space enclosing structure constructional materials is the primary condition that realizes building energy conservation with using, and also is the necessary guarantee of realizing the building sustainable development.In the architectural exterior-protecting construction, body of wall occupies great ratio, and therefore, the Application and Development of novel wall material is outstanding under the current main trend of advocating building energy conservation energetically to show important, and the whether energy-conservation success or failure that are related to building energy conservation of body of wall have been undisputable fact.

The wall reform of China originates from the eighties in 20th century, practice through surplus 30 years, obtained proud achievement, the output of novel wall brick material and in the materials for wall total amount shared ratio advance by leaps and bounds, dispose according to unification of the motherland, realization will ban use of the target of solid clay brick in the end of the year 2008 in second batch of 256 small and medium-sized cities, and by 2010, national novel wall material output will account for 55% of materials for wall total amount.The kind of novel wall material has also formed several big classes such as brick, plate, piece and piece plate, but, we also must recognize clear-headedly, all only account for the specific national conditions of China of world average level 1/4 for the energy with ploughing, the coordinated development of national economy and society and resource and ecological environment, it is very important and urgent that energy-saving consumption-reducing seems.At present, though China's clay solid brick " is prohibited real " for many years, the consumption in the city that particularly national requirements of metropolis " is prohibited real " seldom, obtained breakthrough achievement, but, the output of China's clay solid brick still accounts for about 80% of materials for wall total amount, and the energy consumption height, ruin the field, problems such as pollution are still very serious, at present, still there are more than 85000 families of brick and tile enterprise in the whole nation, annual solid clay brick 4500～4,800 hundred million piece of producing, by calculating like this, China is annual because bake bricks and will destroy 8,000,000 mu of arable lands nearly, consume 700,000,000 tons of mark coals, to produce the 2620kg carbon dioxide, 8.5kg sulfur dioxide, nitrogen oxide 7.4kg and burn one ton of mark coal.As seen, find the novel feasible constructional materials that replaces clay brick imperative, wall reform is shouldered heavy responsibilities.Should be noted that novel wall material especially and use and also have problems, fail to coordinate to solve as insulation and heat insulation problem, not strong with the matching used solubility of traditional finish material, problems such as cracks in plaster still do not have very ripe solution, these all to novel wall material promote the use of the formation resistance, proposed new challenge also for the research and development of novel wall material.

The 3D plate is built the beginning of the nineties and is applied abroad, enters China market subsequently, and enterprise of family produces similar or similar sheet material, yearly productive capacity 5000000 m surplus in the of at present domestic existing 200 ²National building materials industry office had promulgated industry standard " mesh reinforced cement polystyrene sandwiched plate " (JC623-1996) in 1996, and China's mesh reinforced cement polystyrene sandwiched plate The development of architecture has been played facilitation.But over year, because the research and development popularization is ineffective, the 3D plate is mainly used in partition wall system, and is few as the application of structural element, do not bring into play its main advantage surplus in the of 10.Therefore limit the application of 3D sheet material, made the idleness of equipment of many producers, caused the wasting of resources.For example Chengdu three enlightening are built Co., Ltd in the nineteen ninety-five introduction of production line, but owing to the reason in market is being transferred the possession of production line at present.In fact abroad extensive use 3D plate and is used for building multistory building in floor, room plate, load-bearing wall panel etc.Have only the 3D plate is applied in the structure, build the 3D board house, just can give full play to its advantage, enlarge its purposes.In fact the 3D plate is as a kind of primary structure member, the stress performance of self can satisfy structural requirement fully, when being combined into building, particularly be applied to the earthquake zone, the globality that guarantees structure is key factor, therefore must study node connectivity scenario and structure, make the existing stronger anti-seismic performance of overall structure, possess good heat insulating effect again.

China is large agricultural country, now on the occasion of new countryside construction, the construction in rural area is transformed into the present support to agriculture, rural areas and farmers from promoting production of six the seventies, from before ask to have enough to eat and wear and transform to the present well-to-do level of meeting, the reality in rural area is in material or spiritual civilization higher requirement have been arranged all, requirement to dwelling environment is also more obvious, and the rural area is deeply being permeated in energy saving building.In addition, the China that has experienced Wenchuan and cajaput earthquake requires building aseismicity and brings into schedule, and it has been had more serious attitude.China be located in four violent earthquake bands (1, Taiwan and the ALONG COASTAL FUJIAN of the southeast; 2, the Taihang Mountain in North China is along the line and Beijing-Tianjin-Tangshan is regional; 3, the Sichuan at Qinghai-Tibet Platean, southwest and its edge, two province western parts, Yunnan; 4, Xi Bu Xinjiang, Gansu and Ningxia.）。The earthquake zone area is more urgent to the requirement of building aseismicity aspect.

Crop material is important organic matter and energy resources, China is large agricultural country, stalk resource is especially abundant, according to different experts' statistics, the field stalk amount in present stage of china every year and wherein is taken as castoff burning or throws away about 700,000,000 tons more than 300,000,000 tons, once the agricultural crop straw that was used as fuel arbitrarily piles up the edge of a field, a large amount of stalk open incinerations have a strong impact on ecological environment and health of human body, cause the wasting of resources simultaneously.For example last year Chengdu, mid or late May is the results busy season of Chengdu Plain rape, wheat, also is that annual stalk is concentrated the burning phase, Chengdu faces the situation in thick fog lock city again.7 measure replies that satellite patrol monitoring image upgrades have at any time also been adopted to this situation in Chengdu, but also can't be basic except it.In early morning May 18, the West China City Newspaper reporter looks into the distance near the high building that is positioned at the cutlery grade separation of Chenghua district, Chengdu everywhere, and the entire city sky is by one deck smogout, and visibility is very low, and is distributing the smell of one plant ash in the air.Chengdu Environmental Protection Agency explains, causes such phenomenon, is due to the crop straw burning." city air quality daily paper and forecast " data according to the issue of Chengdu Environmental Monitoring central station show that the air pollution index of inner city, Chengdu yesterday (API index) reaches 213, is intermediate pollution, and primary pollutant is pellet.And the air pollution index of Chenghua district even up to 377 is serious pollution.This shows, utilize stalk still self heat preservation property aspect all to have very obvious practical meaning as constructional materials from reducing discharging.

The utility model content

The technical problem that the utility model solves provides a kind of composite insulation wall that utilizes the high insulating effect that stalk makes.

The technical scheme that its technical problem that solves the utility model adopts is: composite insulation wall, the concrete protection body that comprises two rectangular shapes, be respectively the first concrete protection body and the second concrete protection body, be provided with the straw core of rectangular shape between the described first concrete protection body and the second concrete protection body, the described first concrete protection body contacts with two opposed faces that are parallel to each other of straw core respectively with the second concrete protection body, be provided with first steel mesh reinforcement in the described first concrete protection body, be provided with second steel mesh reinforcement in the described second concrete protection body, described first steel mesh reinforcement links to each other with second steel mesh reinforcement by the diagonal reinforcement that links to each other with straw core, and the angle of described diagonal reinforcement and described opposed faces is 45～60 degree.

Further be: the thickness of the first concrete protection body: the thickness of straw core: the thickness=3:5:3 of the second concrete protection body.

Further be: described straw core external surface is provided with damp-proof course.

The beneficial effects of the utility model are: can consume stalk in a large number by body of wall of the present utility model, can reduce the quantity combusted of stalk on the one hand, be conducive to reduce air pollution degree, be beneficial to environmental protection; Body of wall of the present utility model has good heat insulation effect on the other hand, proves that by experiment the heat insulation effect of combined wall of its heat insulation effect and existing other kind is suitable, uses at building to reach the good energy-conservation purpose.Compare with the combined wall of existing other type, wall cost of the present utility model is very cheap, and production technology is simple, is convenient to promote the use of on a large scale.And, use by the matched combined of special steel mesh reinforcement and diagonal reinforcement, reached the effect of strengthening body of wall, prove that by experiment body of wall of the present utility model has good seismic resistance.

Description of drawings

Fig. 1 is the structural representation of composite insulation wall of the present utility model;

Be labeled as among the figure: the first concrete protection body, 1, the second concrete protection body 2, straw core 3, the first steel mesh reinforcements 4, the second steel mesh reinforcements 5, diagonal reinforcement 6.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is further specified.

As shown in Figure 1, composite insulation wall of the present utility model, the concrete protection body that comprises two rectangular shapes, be respectively the first concrete protection body 1 and the second concrete protection body 2, be provided with the straw core 3 of rectangular shape between the described first concrete protection body 1 and the second concrete protection body 2, the described first concrete protection body 1 contacts with two opposed faces that are parallel to each other of straw core 3 respectively with the second concrete protection body 2, be provided with first steel mesh reinforcement 4 in the described first concrete protection body 1, be provided with second steel mesh reinforcement 5 in the described second concrete protection body 2, described first steel mesh reinforcement 4 links to each other with second steel mesh reinforcement 5 by the diagonal reinforcement 6 that links to each other with straw core 3, and described diagonal reinforcement 6 is 45～60 degree with the angle of described opposed faces.Among Fig. 1, from top to bottom be followed successively by the first concrete protection body 1, straw core 3 and the second concrete protection body 2, the end face of straw core 3 and bottom surface are two opposed faces that are parallel to each other, the first concrete protection body 1 contacts with the end face of straw core 3, and the second concrete protection body 2 contacts with the bottom surface of straw core 3.Direction along two intersections in the first concrete protection body 1 is respectively arranged with reinforcing bar, common first steel mesh reinforcement 4 that forms of these reinforcing bars, in like manner, be provided with second steel mesh reinforcement 5 in the second concrete protection body 2, in order to make first steel mesh reinforcement 4 and second steel mesh reinforcement 5 form the grid braced structures of the solid of an integral body, the utility model adopts a plurality of diagonal reinforcements 6 that first steel mesh reinforcement 4 is linked to each other with second steel mesh reinforcement 5.On this basis, the angle of inclination of diagonal reinforcement 6 is optimized design, purpose be make formation the grid braced structures more firmly and have certain anti-seismic performance.In conjunction with shown in Figure 1, above-mentioned diagonal reinforcement 6 is 45～60 degree with the angle of above-mentioned opposed faces, and for example diagonal reinforcement 6 is 45 degree, 50 degree or 60 degree with the end face of straw core 3 and the angle of bottom surface.This design supports firm and has certain damping effect.And, because the both sides of straw core add that respectively by the protection of concrete protection body the sandwich structure of body of wall itself has good effect of heat insulation, make the fireproof performance of body of wall of the present utility model also meet related request.

Can know by table 1 and to find out that body of wall of the present utility model compares with the combined wall of existing other type, it is low to have a thermal transmittance, energy-conservation ratio height, advantage such as cost is low.

Table 1

Further be that the thickness of concrete protection body and the thickness of straw core have certain influence for heat-insulating property and the mechanical property of body of wall.Under this mentality of designing, by experimental results demonstrate the thickness of the first concrete protection body: the thickness of straw core: the thickness=3:5:3 of the second concrete protection body.For example the thickness of the first concrete protection body is 300mm, and the thickness of straw core is 500mm, and the thickness of the second concrete protection body is 300mm.The heat-insulating property of the body of wall under this ratio and mechanical property are all better.

On the basis of the above, in order to improve the humidity resistance of body of wall of the present utility model, described straw core external surface is provided with damp-proof course.Can form above-mentioned damp-proof course by being coated with moisture-proof coating at the straw core external surface.

Claims

1. composite insulation wall, it is characterized in that: the concrete protection body that comprises two rectangular shapes, be respectively the first concrete protection body (1) and the second concrete protection body (2), be provided with the straw core (3) of rectangular shape between the described first concrete protection body (1) and the second concrete protection body (2), the described first concrete protection body (1) contacts with two opposed faces that are parallel to each other of straw core (3) respectively with the second concrete protection body (2), be provided with first steel mesh reinforcement (4) in the described first concrete protection body (1), be provided with second steel mesh reinforcement (5) in the described second concrete protection body (2), described first steel mesh reinforcement (4) links to each other with second steel mesh reinforcement (5) by the diagonal reinforcement (6) that links to each other with straw core (3), and described diagonal reinforcement (6) is 45～60 degree with the angle of described opposed faces.

2. composite insulation wall as claimed in claim 1 is characterized in that: the thickness of the first concrete protection body: the thickness of straw core: the thickness=3:5:3 of the second concrete protection body.

3. composite insulation wall as claimed in claim 1, it is characterized in that: described straw core external surface is provided with damp-proof course.