CN206503260U - A kind of external wall structure - Google Patents

Abstract

The utility model discloses a kind of external wall structure, including the first wall, the second wall, heat-insulation layer and multiple precast support bodies；The heat-insulation layer is shown consideration for the multiple precast support and closed, and the heat-insulation layer and the multiple precast support body are folded between the first wall and the second wall, and multiple precast support bodies are in scattered arrangement, to form precast support volume array.It is the wall body structure intensity, globality, safe, on-site construction time can be saved, strengthen the external wall structure of wall connecting field strength.

Description

an exterior wall structure

technical field

The utility model relates to the field of construction engineering, in particular to an exterior wall structure.

Background technique

The existing exterior wall structure in the interior of the building includes two walls (outer leaf wall and inner leaf wall) arranged at intervals, between which there are multiple criss-cross steel bars arranged and interposed with The insulation layer is then poured with concrete to form a complete prefabricated exterior wall structure. However, there are following defects in the existing prefabricated exterior wall structure:

1. The strength of the wall structure is poor;

2. During on-site pouring, it is necessary to fill the space between the two walls and the insulation layer. The process is time-consuming, and the on-site construction time is tight, the process is simple, and the quality of the poured wall is difficult to guarantee;

3. Due to the problems of the pouring material itself or the construction process, the concrete is prone to air bubbles during the pouring process and is not easy to be discharged. After the pouring is completed, many pits will be formed, which will affect the quality of the finished prefabricated exterior wall.

4. The material and process of the grouting structure are unstable, time-consuming and labor-intensive, and the strength, integrity, and safety are poor.

Utility model content

The purpose of the utility model is to provide an external wall structure with high strength, integrity and safety, which can save on-site construction time and strengthen the strength of the wall connection area.

In order to achieve the above purpose, the utility model provides an exterior wall structure, comprising

a first wall body, a second wall body, an insulation layer and a plurality of prefabricated supports;

The insulation layer is attached to the plurality of prefabricated supports, and the insulation layer and the plurality of prefabricated supports are sandwiched between the first wall and the second wall, and the plurality of prefabricated supports are dispersed Arranged to form an array of prefabricated supports.

Optionally or preferably, the prefabricated support body is a point support body.

Optionally or preferably, the point-shaped supports are arranged in columns in the space between the insulation layer and the first wall or between the insulation layer and the second wall, and each column includes a plurality of point-shaped supports. The dot-shaped support bodies of two adjacent rows are arranged in dislocation with each other.

Optionally or preferably, the shape of the point-like support is circular or polygonal.

Optionally or preferably, the prefabricated support is a columnar support.

Optionally or preferably, the columnar supports are arranged vertically in the space between the insulation layer and the first wall or between the insulation layer and the second wall, forming multiple columnar support columns parallel to each other. At least part of the columnar supports in two adjacent columns of columnar supports are arranged in a dislocation manner.

Optionally or preferably, the lower end of the columnar support is configured as a flow guide structure for discharging air bubbles generated during pouring of concrete.

Optionally or preferably, the flow guide structure includes two flow guide surfaces extending obliquely upward from the lower end of the columnar support along the columnar support.

Optionally or preferably, the range of arrangement of the columnar supports includes the bottom area of the space between the insulation layer and the first wall or the space between the insulation layer and the second wall, and the lower end of the columnar support located in the bottom area A distance is reserved from the lower edges of the first wall body and the second wall body.

Optionally or preferably, there is a gap at the lower end of the first wall body and/or the second wall body, which is used for supporting the formwork during in-situ casting.

An exterior wall structure provided by the utility model includes a first wall, a second wall, a thermal insulation layer and a plurality of prefabricated supports; the thermal insulation layer is bonded to the plurality of prefabricated supports, and the thermal insulation The layer and the plurality of prefabricated supports are sandwiched between the first wall and the second wall, and the plurality of prefabricated supports are arranged in a dispersed manner to form an array of prefabricated supports. Since the support body is prefabricated, it can reduce the pouring space required for on-site pouring and save time. On the other hand, the support body is prefabricated in the factory, which makes quality monitoring more convenient and improves the overall strength of the external wall structure.

Description of drawings

Fig. 1 is a schematic front view of an exterior wall structure provided by an embodiment of the present invention;

Fig. 2 is a schematic top view of an exterior wall structure provided by an embodiment of the present invention;

Fig. 3 is a schematic side view of an exterior wall structure provided by an embodiment of the present invention;

Fig. 4 is a schematic front view of an exterior wall structure provided by another embodiment of the present invention;

Fig. 5 is a schematic top view of an exterior wall structure provided by another embodiment of the present invention;

Fig. 6 is a schematic side view of an exterior wall structure provided by another embodiment of the present invention;

Fig. 7 is a schematic side view of the wall structure using the existing formwork in the embodiment of the utility model;

Fig. 8 is a schematic side view of a wall structure using an existing formwork in another embodiment of the present invention;

In the picture:

1-first wall; 2-second wall; 3-point support body; 4-cast-in-place area; 5-column support body;

detailed description

In order to enable those skilled in the art to better understand the solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to FIG. 1 , an exterior wall structure provided by an embodiment of the present invention is a prefabricated wall structure used as an exterior wall of a building (such as a building). The wall structure specifically includes a first wall 1, a second wall 2, an insulation layer 7 and a plurality of prefabricated supports, the first wall is an outer leaf wall, the second wall is an inner leaf wall, and the second wall is an inner leaf wall. The height of the wall body is lower than the height of the first wall body, so that a step can be formed for lapping the top plate of the interior wall body on it. The insulation layer 7 and a plurality of prefabricated supports are bonded together, and the insulation layer 7 and the plurality of prefabricated supports are sandwiched between the first wall 1 and the second wall 2, specifically the first wall 1 and the second wall. The space between the insulation layers 7 may also be the space between the second wall body 2 and the insulation layer 7 . In this way, the prefabricated support forms an effective support and connection between the first wall body 1 and the second wall body 2 . Since the prefabricated support body is prefabricated, only the remaining cast-in-place area 4 between the first wall body 1 and the second wall body 2 except the prefabricated support body needs to be poured during pouring-in-place. space to save pouring time. The prefabricated support body can be prefabricated in the factory, and its quality is easier to control than cast-in-place, and has good strength, which makes the integrity of the outer wall structure better and its strength higher. The prefabricated supports can be arranged in a dislocation in the horizontal direction between the first wall body 1 and the second wall body 2 .

In one embodiment, the prefabricated support body is a point-shaped support body 3 (as shown in Figures 1-3), and the specific shape may be a circular point or a polygonal point. When circular dots are used, the outer contour of the support body 3 can also play a good role in guiding the slurry. A plurality of point supports 3 are distributed in a distributed manner between the first wall body 1 and the insulation layer 7 or between the second wall body 2 and the insulation layer 7, forming a group of prefabricated support body arrays. There are many ways to arrange the point-shaped support bodies 3 in the array, preferably according to a certain symmetrical rule, so that the supporting force of the wall structure is distributed more evenly. In this embodiment, the point-shaped supports 3 are arranged in columns, and each column is composed of a plurality of point-shaped supports 3, and the point-shaped supports 3 between two adjacent columns are arranged in dislocation, because if they are not dislocated Arrangement, in the cast-in-place space between the first wall 1 and the second wall 2, there will be more continuous hollow areas in the horizontal direction. After adopting a dislocation arrangement, it is equivalent to a certain degree of reduction in the vertical direction. The support bodies are arranged at intervals, and at the same time, the cost increase caused by the dense arrangement of each support body in the same column is avoided. For example, in this embodiment, the number of point-shaped supports 3 in the first column on the far left and the number of point-shaped supports 3 in the third column on the far right are four, and the four point-shaped supports 3 are in the same shape. Spaced out. The number of the second row of point-shaped supports 3 in the middle is three, and the position of each second row of point-shaped supports 3 is roughly located between the first row and the third row of point-shaped supports 3 in the horizontal direction The center of the interval position. In this way, the second column of point-shaped support bodies 3 in the middle is equivalent to filling up the hollow area formed in the horizontal direction by the intervals between the support bodies in the first column and the third column to a certain extent. The supporting force is distributed more evenly, and the strength of the wall structure is better improved.

In another embodiment, the prefabricated support body is a columnar support body 5 (as shown in Figures 4-6), and the columnar support body 5 is vertically arranged on the first wall body 1 and the insulation layer 7 or the second wall body 2 and the insulation layer. Between the layers 7, columns of columnar supports parallel to each other are formed. For example, in this embodiment, there are five columns of columnar supports. The first column on the left, the third column in the middle, and the fifth column on the right all contain two columns of columnar supports 5 arranged at intervals. The second column and the fourth column contain a columnar support body 5 . Preferably, the columnar supports 5 between two adjacent columns can be arranged in a misaligned manner. For example, the columnar supports 5 of the second column and the fourth column in the middle only partially coincide with the supports of the first column, the third column, and the fifth column in the horizontal direction, and the middle part is located in the first column and the fifth column. The position between the two columnar supports 5 is similar to the misplaced arrangement of the point-shaped supports 3. This arrangement is equivalent to filling the supports in the first, third and fifth columns to a certain extent. The hollow area formed by the interval of the body in the horizontal direction. The supporting force is distributed more evenly, and the strength of the wall structure is better improved. In addition, the advantage of the dislocation arrangement of the columnar supports is that the cast-in-place area 4 formed after the dislocation similarly constitutes a curved slurry channel, so that the wall can be connected into a whole at multiple positions in the vertical direction, and the overall strength is higher . However, if the supports are not arranged vertically, such as continuously distributed from top to bottom, leaving only a corresponding gap at a certain position, then the concrete slurry can only place the support on both sides of the support at a specific position. The space is connected, and the strength is slightly lower than that of the misplaced arrangement.

During the concrete pouring process, air bubbles will be generated due to the defects of the material itself or the defects of the pouring process. If these air bubbles cannot be discharged in time, they will remain on the concrete surface. A small amount of air bubbles will affect the beauty of the wall. Air bubbles in the concrete will affect the durability of the concrete, and the concrete also needs to be poured to make the wall form an integral structure. In order to solve this problem, further, the lower end of the columnar support 5 has a diversion structure, which is used to discharge the air bubbles in the concrete and promote the free flow of concrete on both sides of the columnar support, so that the lower part of the wall can form an integral structure. The flow guide structure can be various, for example, the flow guide structure can include two flow guide surfaces 51, and the two flow guide surfaces 51 are formed by extending obliquely upward from the bottom end of the columnar support body 5, so that the columnar Both sides of the support body 5 discharge the air bubbles, the air bubbles are discharged efficiently and the air bubbles flow evenly. In a preferred embodiment, the two guide surfaces 51 extend obliquely upward from the bottom end of the columnar support body 5 with a fixed slope, and the bottom ends of the guide surfaces 51 transition in a sharp manner, forming a broken-line transition line, namely On the whole, the two guide surfaces 51 form a V-shaped structure, so that the effect of air bubble discharge is better. In addition, the diversion surface can also extend upwards on both sides of the columnar support body 5 according to the changing slope, forming a smooth slope, and the position where the two diversion surfaces connect is also smooth, that is, a U-shaped structure is formed, but the diversion effect Not as good as a V-shaped structure. The lower end of the columnar support body 5 located in the bottom area has a distance from the lower edges of the first wall body 1 and the second wall body 2, which is to ensure that the castable can be placed at the bottom of the columnar support body 5 from the space formed by this distance. The circulation on both sides ensures that the poured concrete body forms a whole with higher strength, and prevents the combined column from forming a barrier during concrete pouring, hindering the discharge of air bubbles, thereby ensuring the effect of compactness and waterproofing.

In some other embodiments, the lower end of one of the first wall 1 and the second wall 2 has a distance from the lower end of the other wall to form a gap for supporting template. For example, Fig. 7 and Fig. 8 are another kind of external wall structure adopting point support body and columnar support body respectively, wherein the lower end of the second wall body 2 is not flush with the lower end of the first wall body 1, but If a part is missing, this part can be used to support formwork 6 to form a complete pouring space. In addition, gaps can also be left at the lower ends of the first wall body 1 and the second wall body 2, and formwork can be supported on both sides.

The above is a detailed introduction of the exterior wall structure provided by the utility model. In this paper, specific examples are used to illustrate the principle and implementation of the present utility model, and the descriptions of the above embodiments are only used to help understand the core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made to the utility model, and these improvements and modifications also fall into the protection of the claims of the utility model. within range.

Claims (10)

1. An exterior wall structure, characterized in that it comprises a first wall body, a second wall body, an insulation layer and a plurality of prefabricated supports; The insulation layer is attached to the plurality of prefabricated supports, and the insulation layer and the plurality of prefabricated supports are sandwiched between the first wall and the second wall, and the plurality of prefabricated supports are dispersed Arranged to form an array of prefabricated supports. 2. The exterior wall structure according to claim 1, wherein the prefabricated support body is a point-shaped support body. 3. The exterior wall structure according to claim 2, wherein the point-shaped supports are arranged in columns in the space between the insulation layer and the first wall or between the insulation layer and the second wall, and each column All of them include a plurality of point-shaped supports, and the point-shaped supports in two adjacent columns are arranged in a dislocation manner. 4. The exterior wall structure according to claim 2 or 3, characterized in that the shape of the point-like support is circular or polygonal. 5. The exterior wall structure according to claim 1, wherein the prefabricated support body is a columnar support body. 6. The exterior wall structure according to claim 5, wherein the columnar supports are vertically arranged in the space between the insulation layer and the first wall or between the insulation layer and the second wall, forming There are a plurality of columnar support bodies parallel to each other, and at least part of the columnar support bodies in two adjacent columns of columnar support bodies are arranged in a dislocation manner. 7. The exterior wall structure according to claim 6, characterized in that, the lower end of the columnar support is configured as a diversion structure for discharging air bubbles generated during pouring of concrete. 8 . The exterior wall structure according to claim 7 , wherein the diversion structure comprises two diversion surfaces extending obliquely upward from the lower end of the columnar support along the columnar support. 9. The exterior wall structure according to any one of claims 5-8, characterized in that, the range of arrangement of the columnar supports includes the distance between the insulation layer and the first wall or between the insulation layer and the second wall. The bottom area of the space, and the lower end of the columnar support located in the bottom area has a distance from the lower edges of the first wall and the second wall. 10. The exterior wall structure according to any one of claims 1-3, 5-8, characterized in that there is a gap at the lower end of the first wall and/or the second wall for on-site Formwork is supported during pouring.