CN108316525A - A kind of monoblock type composite thermal insulation exterior wall and its construction method - Google Patents

Abstract

The present invention provides an integral composite thermal insulation exterior wall and a construction method thereof. The integral composite thermal insulation exterior wall includes a cast-in-place load-bearing structure and an external thermal insulation structure. The cast-in-place load-bearing structure includes shear walls and beams, and the exterior The thermal insulation structure specifically includes the thermal insulation board and the concrete protective layer combined by the tie parts, and the integral combined filling wall component composed of two concrete layer sandwich insulation boards of equal thickness. The external thermal insulation structure in the present invention not only plays the role of building thermal insulation, but also is used as an external facade formwork of the external wall. The construction method of the present invention is to combine the external thermal insulation structure with the internal facade formwork, and form the thermal insulation external wall body by pouring on site, which avoids the removal and transfer of the external facade formwork, makes the construction process simple, and improves the work efficiency.

Description

An integral composite thermal insulation exterior wall and its construction method

technical field

The invention relates to a prefabricated building, in particular to an integral combined thermal insulation outer wall body and its integral combined thermal insulation structure and construction method which can be used as a formwork for the outer facade of the outer wall.

Background technique

With the emphasis on environmental protection and energy saving, buildings have higher and higher requirements for thermal insulation. In the cast-in-place structure, the insulation layer is carried out during the second construction. Specifically, glue and fixing nails are used on the outside of the outer wall to bond the wall and the insulation layer into one, and then ceramic tiles and other decorations are bonded on the outside of the outer insulation layer. , there are hidden dangers in this structure. First, the density of the insulation layer is small, and the shear strength is very small. The strength of the adhesive bond decreases with the change of temperature and time, and it is easy to make the insulation layer and the wall or insulation layer The outer decoration of the building falls off, and it cannot last the same life as the structure. It needs to be repaired and replaced within the life cycle of the building, which is labor-intensive and time-consuming. Second, it is not easy to keep the construction site clean and environmentally friendly, and the quality of the completion is often not guaranteed, posing safety hazards.

During the construction of the above-mentioned exterior wall, it is necessary to pour between the interior formwork and the exterior formwork to form the exterior wall. Since the exterior formwork has no operating platform, it is difficult to install, disassemble and transfer. At the same time, the infill wall in the external wall adopts the traditional aerated block type infill wall. The construction of the aerated block type infill wall is not only complicated and affects the construction period, but most of them have cracking problems, which may lead to water seepage and other problems in the outer wall.

Contents of the invention

In order to solve the above technical problems, the present invention provides an integral combined thermal insulation exterior wall and its construction method. The integral combined thermal insulation exterior wall of the present invention includes a cast-in-place load-bearing structure and an external thermal insulation structure, the cast-in-place load-bearing structure includes shear walls and beams, and the external thermal insulation structure specifically includes thermal insulation boards and concrete combined with tie-down members The protective layer and the integral composite infill wall member composed of two layers of concrete sandwich insulation boards of equal thickness are anchored to the outer surface of the load-bearing structure by using the insulation board and the concrete protection layer combined by ties. The external thermal insulation structure in the present invention not only plays the role of building thermal insulation, but also is used as the facade formwork of the external wall; at the same time, the filling wall part of the integral combined thermal insulation external wall is sandwiched by two layers of concrete layers of equal thickness The insulation panels make up the integral composite infill wall element.

The integral combined thermal insulation external wall of the present invention uses the external thermal insulation structure as an external facade formwork during construction, and combines with the inner inner formwork to form an external wall body by on-site pouring, which can avoid the installation, removal and maintenance of the external facade formwork of the external wall. At the same time, the integral composite thermal insulation external wall adopts the composite filling wall component composed of concrete layer sandwich insulation board, which is simple in construction. At the same time, the concrete layer sandwich insulation board has no cracking problem compared with the aerated block type filling wall, and Water seepage and other problems caused by external walls.

To achieve the above object, the technical solution adopted in the present invention is:

An integral composite thermal insulation external wall, including a cast-in-place load-bearing structure and an external thermal insulation structure, the cast-in-place load-bearing structure includes a first shear wall body, a second shear wall body, and a beam body, and the beam body is arranged on A window is arranged at the upper end of the first shear wall body and the second shear wall body, and below the beam body, and a filling wall is arranged between the first shear wall body and the second shear wall body;

A layer of thermal insulation board and a layer of concrete protection layer connected together by anchors are anchored on the outer surfaces of the cast-in-place first shear wall body, the second shear wall body and the beam body;

The outer surface of the first shear wall body, the second shear wall body, and the outer surface of the beam body are anchored together by a layer of thermal insulation board, a layer of concrete protection layer and a filling wall that are connected together by tie pieces to form the external thermal insulation structure .

As preferred in the present invention, the filling wall is an integral combined filling wall component composed of two layers of equal-thickness concrete layer sandwich insulation boards.

As preferred in the present invention, the first shear wall body, the second shear wall body, the thermal insulation board outside the beam body and the thermal insulation board inside the filling wall are EPS boards, XPS boards or polyurethane insulation boards.

As preferred in the present invention, a waterproof platform is provided on the upper surface of the filling wall below the window.

As preferred in the present invention, drip grooves are provided at the bottom of the concrete protective layer outside the beam body above the window.

As preferred in the present invention, anchoring steel bars are reserved on the concrete protection layer of the filling wall.

As preferred in the present invention, the filling wall below the window is connected with a prefabricated air-conditioning panel.

A construction method for the above-mentioned integral combined thermal insulation exterior wall. During construction, firstly, at the floor level, protruding from the exterior wall and cantilever beams are set as supports for component installation and placement, and are connected by back corrugated to form an overall reinforcement;

The external thermal insulation structure is fixed into a formwork system by screw rods and the formwork tie on the inner side of the outer wall;

The filling wall is temporarily fixed by connecting the filling wall to the structural reinforcement through the anchor reinforcement bars reserved on the top and left and right ends of the filling wall;

On-site pouring is carried out, and the joints between components are sealed with glue after the structural pouring is completed, and the inner formwork is removed to form an external thermal insulation wall.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention adopts the external thermal insulation structure as the formwork for the exterior wall, which saves the use of the formwork for the exterior facade and makes the construction process simple.

2. The integral combined filling wall component of the present invention is composed of two layers of concrete layer sandwich insulation boards of equal thickness. Compared with the aerated block type filling wall, there is no problem of cracking, and the resulting water seepage of the outer wall and other problems, thereby extending life of the exterior wall.

3. The construction method of the present invention is to combine the external thermal insulation structure with the internal facade formwork, and cast on-site to form the thermal insulation external wall, which avoids the removal and transfer of the external facade formwork, makes the construction process simple, and improves work efficiency.

Description of drawings

Fig. 1 is the plan view of integral type combined thermal insulation outer wall body of the present invention;

Fig. 2 is the sectional view of A-A direction in Fig. 1;

Fig. 3 is the sectional view of B-B direction in Fig. 1;

Fig. 4 is a cross-sectional view at C in Fig. 1;

Fig. 5 is a cross-sectional view at D in Fig. 1;

Fig. 6 is a sectional view at E place in Fig. 1;

Fig. 7 is a cross-sectional view at F in Fig. 1;

Figure 8 is a schematic diagram of the connection of prefabricated air-conditioning panels;

Figure 9 is a schematic diagram of the connection of the cantilever plate;

In the figure, 1. The body of the first shear wall, 2. The body of the second shear wall, 3. The body of the beam, 4. The window, 5. The filling wall, 6. The drip tank, 7. The waterproof platform, 8. The insulation board, 9. Prefabricated air-conditioning panels, 10. Anchor steel bars, 11. PE rods.

Detailed ways

The present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.

Example 1

Fig. 1 shows a plan view of the integral combined thermal insulation exterior wall of this embodiment. As shown in Figure 1, the integral composite thermal insulation external wall includes a cast-in-place load-bearing structure and an external thermal insulation structure, and the cast-in-place load-bearing structure includes a first shear wall body 1, a second shear wall body 2, and a beam body 3 , the beam body 3 is arranged on the upper end of the first shear wall body 1 and the second shear wall body 2, and the window 4 is set under the beam body 3, between the first shear wall body 1 and the second shear wall body 2 A filling wall 5 is provided, and according to the specific design of the building, the filling wall 5 can be a filling wall under the window, that is, the window 4 and the filling wall 5 divide the first shear wall body 1 and the second shear wall body 2 into upper and lower parts. Two parts; it can also be a combination of a filling wall under a window and a filling wall without a window, and the specific structure is shown in Figure 1.

The connection between the first shear wall body 1 and the window 4, the first shear wall body 1 and the filling wall 5, the filling wall under the window and the windowless filling wall, and the second shear wall body 2 and the beam body 3 The cross-sectional views at C, D, E, and F are shown in Figures 4~7. Specifically, the first shear wall body 1 and the beam body 3, the first shear wall body 1 and the infill wall 5 (at D), the infill wall 5 and the second shear wall body 2, and the second shear wall body 2 At the junction with the beam body 3 (at F), an insulation board 8 is inserted between the insulation materials between the two, and the joints between the outer concrete protection layers are sealed by injecting glue. Similarly, the insulation board 8 is inserted in the middle of the insulation material between the infill wall under the window and the infill wall without window (at E), and the joints of the concrete insulation layers on both sides are sealed and connected by glue injection. Further, the first shear wall body 1 and the beam body 3, the first shear wall body 1 and the filling wall 5, the filling wall 5 and the second shear wall body 2, the second shear wall body 2 and the beam body 3 PE rods 11 are inserted between the concrete protective layers on the outside of the joints, PE rods 11 are inserted between the concrete insulation layers on both sides of the filling wall under the window and the filling wall without windows, and the outside of the PE rod 11 is sealed with glue.

Among them, the first shear wall body 1, the second shear wall body 2, and the beam body 3 are cast-in-place components, and the first shear wall body 1, the second shear wall body 2, and the beam body 3 of the cast-in-place components The outer surface of the wall is anchored with a layer of insulation board and a layer of concrete protection layer connected together by a tie piece, and the tie piece can be a pull screw. The filling wall 5 is an integral combined filling wall component composed of two layers of equal-thick concrete sandwich insulation boards, and the protective layer of the filling wall 5 penetrates through the upper part as a support for the window. The outer surface of the first shear wall body 1, the second shear wall body 2, and the beam body 3 are anchored by a layer of thermal insulation board, a layer of concrete protection layer and a filling wall 5 connected together by tie pieces, which are both external walls. It is not only the thermal insulation structure of the body, but also the facade template of the outer wall.

The insulation boards on the outside of the first shear wall body 1 , the second shear wall body 2 , the beam body 3 and the infill wall 5 are EPS boards, XPS boards or polyurethane insulation boards.

In this embodiment, as shown in FIG. 2 , in order to further prolong the service life of the filling wall 5 , a waterproof platform 7 is provided on the upper surface of the filling wall 5 below the window 4 . A drip groove 6 is provided at the bottom of the concrete protective layer outside the beam body 3 above the window 4 .

As shown in Figures 3 and 5, in order to facilitate the connection of the above-mentioned components during construction, an anchoring steel bar 10 is reserved on the concrete protection layer of the filling wall 5, and the filling wall 5 and the first shear wall body 1, The second shear wall body 2 and the beam body 3 are fixedly connected.

As shown in Figure 8, the infill wall 5 below the window 4 is connected with a prefabricated air-conditioning panel 9, and the connection relationship between the prefabricated air-conditioning panel 9 and the infill wall 5 is shown in Figure 9, and the frame is fixed by a steel mesh for on-site pouring. The outward extension of beam body 3 can also be connected with prefabricated air-conditioning panel 9 or balcony panel or bay window panel, as shown in FIG. 9 .

The specific construction method of the integral combined thermal insulation exterior wall of the present embodiment is:

Specifically, during construction, protruding external walls and cantilever beams are set at the floor level as supports for component installation and placement, and the components are connected as a whole by back corrugation;

The external thermal insulation structure is fixed into a formwork system through screws and the formwork tie on the inner side of the external wall;

The filling wall is temporarily fixed by connecting the filling wall to the structural reinforcement through the anchor reinforcement bars reserved on the top and left and right ends of the filling wall;

On-site pouring is carried out, and the joints between components are sealed with glue after the structural pouring is completed, and the inner formwork is removed to form an external thermal insulation wall.

The formwork on the inner side of the exterior wall used above is the formwork used in the construction site at present, so it will not be repeated here.

During further construction, it is only necessary to connect the integral combined thermal insulation outer wall body of the present invention with the lower beam. When the filling wall 5 is connected with the lower beam, a layer of plain mortar is laid on the lower beam earlier, and the lower beam is roughened.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (8)

1. a kind of monoblock type composite thermal insulation exterior wall, which is characterized in that the monoblock type composite thermal insulation exterior wall includes cast-in-place builds Load-carrying members and external thermal insulation structure, the cast-in-place load-carrying members built include the first shear wall ontology, the second shear wall ontology, beam Ontology, beam ontology are arranged in the upper end of the first shear wall ontology and the second shear wall ontology, and window is arranged in the lower section of beam ontology, the It is provided with filling wall between one shear wall ontology and the second shear wall ontology；

In the outer surface of cast-in-place the first shear wall ontology built, the second shear wall ontology, beam ontology, anchoring has is connected by tension member The one layer of heat preservation plate and a layer concrete protective layer being connected together；

The outer surface anchoring of the first shear wall ontology, the second shear wall ontology, beam ontology is connected to one by tension member The one layer of heat preservation plate and a layer concrete protective layer and filling wall risen constitutes the external thermal insulation structure.

2. monoblock type composite thermal insulation exterior wall according to claim 1, which is characterized in that the filling wall is two layers of uniform thickness Concrete layer sandwiched heat insulation board composition monoblock type combination filling wall member.

3. monoblock type composite thermal insulation exterior wall according to claim 2, which is characterized in that the first shear wall ontology, Second shear wall ontology, the thermal insulation board of beam outer body and filling thermal insulation board within the walls are that EPS sheet, XPS plate or polyurethane are protected Warm plate.

4. monoblock type composite thermal insulation exterior wall according to claim 1, which is characterized in that the beneath window filling wall Upper surface is provided with waterproof platform.

5. monoblock type composite thermal insulation exterior wall according to claim 1, which is characterized in that on the window outside square beam ontology The concrete cover bottom of side is provided with drip.

6. monoblock type composite thermal insulation exterior wall according to claim 1, which is characterized in that in the concrete of the filling wall Anchor bar is reserved on protective layer.

7. monoblock type composite thermal insulation exterior wall according to claim 1, which is characterized in that the filling wall of the beneath window It is connected with prefabricated air-conditioning plate.

8. a kind of construction method of claim 1 ~ 7 any one of them monoblock type composite thermal insulation exterior wall, which is characterized in that apply Working hour the support stretched out exterior wall and outrigger and placed as component installation is arranged in floor absolute altitude, and connect into using back cord first Integral reinforcing；

The external thermal insulation structure is fixed into template system by the template drawknot on the inside of screw rod and exterior wall；

Wall will be filled by the reserved anchor bar in the filling wall top and left and right ends to be connected on structure reinforcing bars temporarily admittedly It is fixed；

Cast in situs is carried out, injecting glue after the completion of structure pours of the seam between component seals, and the form removable of inside is formed outer Heat-preserving wall.