CN204826390U - Assembled presss from both sides compound side fascia of close rib of core heat preservation - Google Patents

Abstract

(B, ) the utility model relates to a compound side fascia technical field of building is an assembled presss from both sides compound side fascia of close rib of core heat preservation, this assembled presss from both sides compound side fascia of close rib of core heat preservation includes protective layer, heat preservation and composite wall panel, the heat preservation is fixed between protective layer and composite wall panel, and the interval frozen -in distribution has the connecting piece between protective layer and composite wall panel, and the middle part of connecting piece is fixed at the in situ that keeps warm. The utility model discloses the outer insulation construction of the more traditional close rib of assembled presss from both sides compound side fascia of close rib of core heat preservation complex side fascia, long service life, low, the prefabricated rate of coefficient of heat transfer and construction speed height, construction cycle weak point have reduced the potential safety hazard, have guaranteed construction safety, have improved building engineering economic benefits, while same thickness the utility model discloses the cost of the present assembled reinforced concrete shear wall structure of assembled presss from both sides compound side fascia of close rib of core heat preservation is low, and the dead weight is light, has reduced earthquake load effects of action by a wide margin, has improved the shock resistance of structure. (B, )

Description

Prefabricated sandwich insulation dense rib composite exterior wall panel

technical field

The utility model relates to the technical field of building composite exterior wall panels, which is an assembled sandwich thermal insulation dense rib composite exterior wall panel.

Background technique

my country is a country with a large energy consumption. Energy and environmental issues have become the primary issues restricting the sustainable development of our national economy. Among the total energy consumption of the whole society in our country, building energy consumption accounts for about 25% to 27%. The level of energy consumption It has an important impact on the total energy consumption level of the whole society. Therefore, it is particularly necessary to vigorously promote the reform of wall materials and the development of building energy-saving technology. To this end, the Ministry of Housing and Urban-Rural Development, the Ministry of Land and Resources, and the State Environmental Protection Administration have issued a series of policies and documents to speed up the reform of wall materials and the development of energy-saving buildings. The energy-saving residential system with dense rib composite wall structure is a new light-weight, high-strength, energy-saving and earthquake-resistant building structure system. It closely combines the innovation of wall materials in my country and the needs of building energy conservation, and highlights the safety, rationality, and Economical, suitable for my country's urban housing construction, material reform of rural housing walls, building energy conservation and housing industrial production requirements, the structural system has local materials, good seismic performance, short construction period, good energy saving effect, and low project cost It is suitable for multi-storey and middle and high-rise residential buildings. After more than 10 years of research, some achievements have been made in the research of this structural system, and one national utility model patent has been obtained. In 2002, the project "Micro Ribbed Wall Panel Light Frame Structure System" was included in the National Ministry of Construction Science and Technology Achievement Promotion Project.

At present, the commonly used thermal insulation walls in engineering are divided into three types: internal thermal insulation walls, external thermal insulation walls and sandwich thermal insulation walls. Some deficiencies in the external wall insulation are mainly manifested in: the external insulation of the wall panels is pasted to the outer surface of the wall panels after the structural system is assembled and poured, which requires on-site high-altitude operations, which increases the difficulty of construction and also The speed of construction has been slowed down to a certain extent. Due to the extremely complex construction environment on site, it is difficult to effectively guarantee the construction quality. Under the external environment temperature, humidity and load, the external insulation and composite wall panels are prone to voids, separation and other diseases, which increases the cost of external wall insulation in the later stage. Maintenance workload, which reduces the overall assembly rate of the multi-ribbed composite wall structure system, thereby slowing down the industrial production rate of the system. There is a serious thermal bridge phenomenon in the application of the inner thermal insulation wall to the ribbed composite wall structure system, which is not conducive to interior decoration. The internal insulation layer is prone to cracks and has short service life. It is also not suitable for the dense ribbed composite wall structure system. requirements of industrial production.

Contents of the invention

The utility model provides an assembled sandwich thermal insulation dense-rib composite exterior wall panel, which overcomes the deficiencies of the prior art and can effectively solve the problems of difficult construction and high construction speed in the construction of the existing dense-rib composite wall structure. Slow; at the same time, voids and separations are prone to occur between the external insulation and the composite wallboard, making it difficult to guarantee the construction quality, which increases the workload of later maintenance.

The technical scheme of the utility model is achieved by the following measures: an assembled sandwich thermal insulation dense rib composite exterior wall panel, including a protective layer, an insulating layer and a composite wall panel; Insulation layer, between the protective layer and the composite wallboard, there are connecting pieces fixed at intervals, the middle part of the connecting piece is fixed in the insulating layer, and one end of the connecting piece protruding outside the insulating layer is fixed in the protective layer, protruding outside the insulating layer The other end of the connector is fixed in the composite wall panel.

Below is the further optimization or/and improvement to above-mentioned utility model technical scheme:

The above-mentioned composite wallboard includes at least three rib columns and at least four rib beams; the rib columns and rib beams are fixed together, fillers are fixed in the lattice formed by the rib columns and rib beams, and the One end of the connector is fixed in the protective layer, and the other end of the connector extending out of the insulation layer is fixed in the rib column or/and the rib beam.

The above filler includes at least two blocks, the joint between two adjacent blocks in the same sash is 0 to 1mm, the compressive strength of the blocks is 2.5MPa to 7.5MPa, and the thermal conductivity of the blocks is less than Equal to 0.25W/m·K; or/and, the rib column is a reinforced concrete rib column, and the rib beam is a reinforced concrete rib beam; or/and, the length of the connector fixed in the protective layer is 20mm to 50mm, and the connector and insulation The angle between layers is 80° to 100°, the length of the connecting piece fixed in the rib column or/and rib beam is 50mm to 150mm, the distance between two adjacent connecting pieces is 300mm to 500mm, and the distance between the connecting piece and the grid axis The distance is 0 to 20mm, the tensile strength of the connector is 200MPa to 600Mpa, the shear strength of the connector is 150MPa to 500MPa, the thermal conductivity of the connector is 0.03W/m·K to 0.2W/m·K, the connector The diameter of the connecting piece is 6mm to 12mm, the pullout bearing capacity of the connector is 20.5KN to 26.5KN, and the shear bearing capacity of the connector is 12.6KN to 19.6KN.

The above insulation layer includes at least two insulation boards, the insulation boards are organic material insulation boards or inorganic material insulation boards, the thermal conductivity of the insulation boards is 0.015W/m·K to 0.045W/m·K, and the combustion performance level of the insulation boards is for B ₂ Grade to A grade, the bulk density of the insulation board is 15kg/m ³ up to 40kg/m ³ , the thickness of the insulation board is 20mm to 120mm, the width of the insulation board is 100mm to 1500mm, the length of the insulation board is 100mm to 1500mm, and the joint between two adjacent insulation boards is 0 to 2mm; or/and, the protective layer is Reinforced concrete protective layer, the thickness of the protective layer is 30mm to 60mm, the strength grade of the protective layer is C15 to C30, and the steel mesh or steel wire mesh is fixed in the protective layer, and the diameter of the steel bar in the steel mesh is 4mm to 6mm. The distance between the parallel steel bars is 100mm to 300mm, the diameter of the steel wire in the steel wire mesh is 1mm to 2mm, the distance between two adjacent parallel steel wires is 10mm to 30mm, and the distance between the steel mesh or steel wire mesh and the outer surface of the protective layer is 10mm to 30mm.

Compared with the traditional thermal insulation structure of dense rib composite exterior wall panels, the assembled sandwich thermal insulation dense rib composite exterior wall panel of the utility model has the advantages of long service life, low heat transfer coefficient, high prefabrication rate and construction speed, short construction period, and reduces potential safety hazards. , to ensure construction safety and improve the economic benefits of construction projects; at the same time, the cost of the prefabricated sandwich thermal insulation dense rib composite exterior wall panel of the present invention is 20% to 30% lower than that of the existing prefabricated reinforced concrete shear wall structure. , the dead weight is 40% to 50% lighter, which greatly reduces the effect of seismic load and improves the seismic capacity of the structure.

Description of drawings

Accompanying drawing 1 is the partial cross-sectional structural schematic diagram of the front view of the utility model.

Accompanying drawing 2 is the schematic cross-sectional structure diagram of A-A place in accompanying drawing 1.

Accompanying drawing 3 is the schematic cross-sectional structure diagram of B-B in accompanying drawing 1.

Accompanying drawing 4 is the schematic cross-sectional structure diagram of C-C in accompanying drawing 1.

Accompanying drawing 5 is the schematic cross-sectional structure diagram of D-D in accompanying drawing 1.

The codes in the drawings are: 1 is the protective layer, 2 is the insulation layer, 3 is the connector, 4 is the rib column, 5 is the rib beam, 6 is the block, and 7 is the steel mesh.

Detailed ways

The utility model is not limited by the following examples, and the specific implementation manner can be determined according to the technical scheme of the utility model and actual conditions.

In this utility model, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout method of Fig. The relationship is determined according to the layout direction of Figure 1 of the specification.

Below in conjunction with embodiment and accompanying drawing, the utility model is further described:

As shown in accompanying drawings 1, 2, 3, 4, and 5, the assembled sandwich thermal insulation dense rib composite exterior wall panel includes a protective layer 1, an insulating layer 2 and a composite wall panel; between the protective layer 1 and the composite wall panel The insulation layer 2 is fixed, and the connecting piece 3 is fixedly distributed between the protective layer 1 and the composite wallboard. The middle part of the connecting piece 3 is fixed in the insulation layer 2. In the protective layer 1, the other end of the connector 3 protruding out of the thermal insulation layer 2 is fixed in the composite wallboard. In this way, the insulation layer 2 is placed between the protective layer 1 and the composite wallboard, which not only effectively plays a thermal insulation effect, but also effectively prevents damage to the insulation layer 2 by external factors, and can be processed together, thereby realizing composite wallboards, protection The integrated production of layer 1 and insulation layer 2 accelerates the speed of industrial production and improves work efficiency.

According to actual needs, the above technical solutions can be further optimized or/and improved:

As shown in Figure 1, the composite wallboard includes at least three rib columns 4 and at least four rib beams 5; the rib columns 4 and the rib beams 5 are fixed together; Filling is fixed in the middle, one end of the connector 3 protruding from the insulation layer 2 is fixed in the protective layer 1, and the other end of the connector 3 protruding from the insulation layer 2 is fixed in the rib column 4 or/and rib beam 5 . The rib column 4 and the rib beam 5 are fixed together in a cross shape or/and a T shape or/and an L shape.

As shown in Figure 1, the filler includes at least two blocks 6, the joint between two adjacent blocks 6 in the same sash is 0 to 1 mm, and the compressive strength of the blocks 6 is 2.5 MPa to 2.5 MPa. 7.5MPa, the thermal conductivity of the block 6 is less than or equal to 0.25W/m·K; or/and, the rib column 4 is a reinforced concrete rib column, and the rib beam 5 is a reinforced concrete rib beam; or/and, the connector 3 is fixed on the protective The length in layer 1 is 20mm to 50mm, the angle between connector 3 and insulation layer 2 is 80 to 100 degrees, and the length of connector 3 fixed in rib column 4 or/and rib beam 5 is 50mm to 150mm, The distance between two adjacent connecting pieces 3 is 300mm to 500mm, the distance between the connecting piece 3 and the grid axis is 0 to 20mm, the tensile strength of the connecting piece 3 is 200MPa to 600Mpa, and the shear strength of the connecting piece 3 is 150MPa to 500MPa , the thermal conductivity of the connector 3 is 0.03W/m·K to 0.2W/m·K, the diameter of the connector 3 is 6mm to 12mm, and the pull-out capacity of the connector 3 is 20.5KN to 26.5KN, the connector 3 The shear bearing capacity is 12.6KN to 19.6KN. The block 6 can be selected according to the principle of adapting measures to local conditions and obtaining materials on the spot with a certain strength and good thermal insulation performance.

According to requirements, the insulation layer 2 includes at least two insulation boards. The insulation boards are organic material insulation boards or inorganic material insulation boards. The thermal conductivity of the insulation boards is 0.015W/m·K to 0.045W/m·K. Combustion performance class is B ₂ Grade to A grade, the bulk density of the insulation board is 15kg/m ³ up to 40kg/m ³ , the thickness of the insulation board is 20mm to 120mm, the width of the insulation board is 100mm to 1500mm, the length of the insulation board is 100mm to 1500mm, and the joint between two adjacent insulation boards is 0 to 2mm; or/and, the protective layer 1 It is a reinforced concrete protective layer, the thickness of the protective layer 1 is 30mm to 60mm, the strength grade of the protective layer 1 is C15 to C30, and the steel mesh 7 or steel wire mesh is fixed in the protective layer 1, and the diameter of the steel bar in the steel mesh 7 is 4mm to 6mm, the distance between two adjacent parallel steel bars is 100mm to 300mm, the diameter of the steel wire in the steel wire mesh is 1mm to 2mm, the distance between two adjacent parallel steel wires is 10mm to 30mm, and the steel mesh 7 or steel wire mesh is separated from the outside of the protective layer 1 The side distance is 10mm to 30mm.

The manufacturing method of the prefabricated sandwich thermal insulation dense rib composite exterior wall panel is carried out according to the following steps: the first step is to place the formwork frame on the horizontal plane, place the steel mesh 7 or steel wire mesh in the formwork frame, pour concrete, vibrate Pound compactly and smooth the surface, so that the steel mesh 7 or steel wire mesh is located in the concrete, and the protective layer 1 is obtained after the surface is smoothed; the second step is to lay the thermal insulation layer 2 on the surface of the protective layer 1, and pass one end of the connector 3 through the thermal insulation layer. The layer 2 is fixed in the protective layer 1, and the middle part of the connector 3 is fixed in the insulation layer 2; in the third step, at least three rib column skeletons and at least four rib beam skeletons are fixedly connected to form a grid, Set up the formwork on the outside of the grid and place them together on the insulation layer 2, the other end of the connector 3 is located in the rib column skeleton or/and rib beam skeleton, and the filler is fixed and installed in the grid, between the filler and the adjacent rib Concrete is respectively poured between the column skeleton and the rib beam skeleton, on the rib column skeleton and the rib beam skeleton, vibrated and compacted, and smoothed, so that the other end of the connector 3 is fixed in the concrete in the rib column skeleton or/and the rib beam skeleton After the pouring is completed, it is autoclaved or naturally cured and numbered. After the curing is completed, the formwork is removed to obtain an assembled sandwich thermal insulation dense rib composite exterior wall panel. After the insulation layer 2 is laid, lightly tap the insulation layer 2 with a rubber hammer to make it closely contact with the concrete of the protective layer 1 to form the prefabricated exterior wall panel insulation layer. The error between the position of the outside formwork of the sash on the insulation layer 2 and the design position shall not exceed 2mm. In the third step, the rib column frame and the rib beam frame are fixedly connected together in a cross shape or/and a T shape or/and an L shape. In the first step, the formwork frame is placed on a horizontal surface with a flatness of 0 to 2mm, and then a layer of concrete release agent is applied to the inside of the formwork frame; or/and, the height of the formwork frame is equal to the protection layer 1 and the insulation layer 2 The sum of the heights, the surface flatness of the protective layer 1 is 0 to 2 mm, and the surface flatness of the insulation layer 2 is 0 to 2 mm.

According to needs, the connector 3 is inserted within 5 minutes to 25 minutes after the concrete pouring of the protective layer 1 is completed, the length of the connector 3 inserted into the protective layer 1 is 20 mm to 50 mm, and the angle between the connector 3 and the insulation layer 2 is 80 degrees to 100 degrees, the length of the connector 3 inserted into the rib column 4 or/and rib beam 5 is 50mm to 150mm, the distance between two adjacent connectors 3 is 300mm to 500mm, and the distance between the connector 3 and the grid axis is 0 to 20mm .

According to requirements, the tensile strength of the connector 3 is 200MPa to 600Mpa, the shear strength of the connector 3 is 150MPa to 500MPa, and the thermal conductivity of the connector 3 is 0.03W/m·K to 0.2W/m·K. 3 has a diameter of 6mm to 12mm, the pull-out bearing capacity of the connector 3 is 20.5KN to 26.5KN, and the shear bearing capacity of the connector 3 is 12.6KN to 19.6KN; or/and, the rib column skeleton includes at least four Rib column longitudinal reinforcement, rib column longitudinal reinforcement is HPB300 or HRB335 grade steel, the diameter of rib column longitudinal reinforcement is 6mm to 12mm, rib column longitudinal reinforcement is HPB300 grade steel reinforcement, rib column longitudinal reinforcement is the diameter of the stirrup 4mm to 6mm, and the distance between two adjacent stirrups on the rib column longitudinal reinforcement is 100mm to 300mm; or/and, the rib beam skeleton includes at least four rib beam longitudinal reinforcement, and the rib beam longitudinal reinforcement is HPB300 or HRB335 grade steel , the diameter of the longitudinal reinforcement of the rib beam is 6mm to 12mm, the stirrup on the longitudinal reinforcement of the rib beam is HPB300 steel bar, the diameter of the stirrup on the longitudinal reinforcement of the rib beam is 4mm to 6mm, and the adjacent two stirrups on the longitudinal reinforcement of the rib beam The spacing of the ribs is 100mm to 300mm; or/and, the concrete in the first step and the third step are both C20 to C35 grade concrete.

The effect of the utility model's assembled sandwich insulation dense rib composite exterior wall panel

1. The service life of the assembled sandwich thermal insulation dense rib composite external wall panel of the utility model is 2 to 3 times higher than that of the traditional dense rib composite external wall panel external thermal insulation structure, realizing the goal of the same life cycle of the thermal insulation layer 2 and the composite wall panel .

The thermal insulation layer 2 has the same material type and thickness as the utility model's assembled sandwich thermal insulation dense rib composite exterior wall panel, which reduces the heat transfer coefficient of the external wall by 3% to 5% compared with the traditional dense rib composite external wall panel external thermal insulation structure, which improves the housing performance. Thermal performance.

The prefabrication rate of the prefabricated structural member of the prefabricated sandwich and dense rib composite panel of the utility model is increased by 15% to 30%, the construction speed is increased by 10% to 20%, and the construction period is shortened by 15% to 20%. %, reducing the amount of high-altitude operations on the structure site, ensuring construction safety and improving the economic benefits of construction projects.

Compared with the existing prefabricated reinforced concrete shear wall structure, the prefabricated sandwich thermal insulation dense rib composite exterior wall panel of the utility model with the same thickness is 20% to 30% lower in cost, 40% to 50% lighter in dead weight, and has a large seismic load effect Reduced and improved the seismic capacity of the structure.

To sum up, compared with the traditional thermal insulation structure of dense rib composite exterior wall panels, the assembled sandwich thermal insulation and dense rib composite external wall panels of the present utility model have longer service life, lower heat transfer coefficient, higher prefabrication rate and construction speed, and shorter construction period. , reducing potential safety hazards, ensuring construction safety, and improving the economic benefits of construction projects; at the same time, the cost of the prefabricated sandwich thermal insulation dense rib composite exterior wall panel of the present invention is lower than that of the existing prefabricated reinforced concrete shear wall structure. 20% to 30%, 40% to 50% lighter in dead weight, which greatly reduces the effect of seismic load and improves the seismic capacity of the structure.

The above technical features constitute the embodiment of the utility model, which has strong adaptability and implementation effect, and non-essential technical features can be increased or decreased according to actual needs to meet the needs of different situations.

Claims (4)

1. assembled sandwich is incubated a close rib compound external wall panel, it is characterized in that comprising topping, insulation layer and combined wall board; Insulation layer is fixed with between topping and combined wall board; between topping and combined wall board, interval stationary distribution has connector; the middle part of connector is fixed in insulation layer; the one end of stretching out the connector outside insulation layer is fixed in topping, and the other end stretching out the connector outside insulation layer is fixed in combined wall board.

2. assembled sandwich according to claim 1 is incubated close rib compound external wall panel, it is characterized in that combined wall board comprises the rib post of at least three and the girt strip of at least four; Rib post and girt strip are fixed together, and in the sash that rib post and girt strip are formed, be fixed with filler, the one end of stretching out the connector outside insulation layer is fixed in topping, and the other end stretching out the connector outside insulation layer is fixed on rib post or/and in girt strip.

3. assembled sandwich according to claim 2 is incubated close rib compound external wall panel, it is characterized in that filler comprises the building block of at least two pieces, piece between adjacent two building blocks in same sash is 0 to 1mm, the compressive strength of building block is 2.5MPa to 7.5MPa, and the coefficient of thermal conductivity of building block is less than or equal to 0.25W/mK, or/and rib post is steel concrete rib post, and girt strip is steel concrete girt strip, or/and, the connector length be fixed in topping is 20mm to 50mm, between connector and insulation layer, angle is 80 degree to 100 degree, connector is fixed on rib post or/and the length in girt strip is 50mm to 150mm, the spacing of adjacent two connectors is 300mm to 500mm, connector is 0 to 20mm apart from the distance of sash axis, the tensile strength of connector is 200MPa to 600Mpa, the shear strength of connector is 150MPa to 500MPa, the coefficient of thermal conductivity of connector is 0.03W/mK to 0.2W/mK, the diameter of connector is 6mm to 12mm, the anti-pulling capacity of connector is 20.5KN to 26.5KN, the shear-carrying capacity of connector is 12.6KN to 19.6KN.

4. the assembled sandwich according to claim 1 or 2 or 3 is incubated close rib compound external wall panel, it is characterized in that insulation layer comprises the warming plate of at least two pieces, warming plate is organic material warming plate or inorganic material warming plate, the coefficient of thermal conductivity of warming plate is 0.015W/mK to 0.045W/mK, and the burning behavior class of warming plate is B ₂level is to A level, and the unit weight of warming plate is 15kg/m ³to 40kg/m ³, the thickness of warming plate is 20mm to 120mm, and the width of warming plate is 100mm to 1500mm, and the length of warming plate is 100mm to 1500mm, and the piece between adjacent two warming plates is 0 to 2mm; Or/and; topping is reinforced concrete protective layer; the thickness of topping is 30mm to 60mm; the strength grade of topping is C15 to C30, has steel mesh reinforcement or gauze wire cloth at topping internal fixtion, and in steel mesh reinforcement, the diameter of reinforcing bar is 4mm to 6mm; the spacing of adjacent two parallel rebar is 100mm to 300mm; in gauze wire cloth, gauge of wire is 1mm to 2mm, and the spacing of adjacent two parallel steel wires is 10mm to 30mm, and steel mesh reinforcement or gauze wire cloth are 10mm to 30mm from the distance of the lateral surface of topping.