CN219825572U - External corner reinforcing structure - Google Patents

Abstract

The present utility model provides an external corner reinforcing structure, comprising: the end part of the first concrete slab base is provided with a mounting groove; the second concrete plate base layer is arranged on the first concrete plate base layer and is positioned on one side of the second concrete plate base layer, the second concrete plate base layer is flush with the end part of the first concrete plate base layer, and the first concrete plate base layer and the second concrete plate base layer form external corners; the reinforcement is arranged in the mounting groove, one end of the reinforcement is fixed with the upper steel beam, and the other end of the reinforcement is fixed on the lower floor slab; wherein, be provided with the adhesive between reinforcement and the first concrete slab basic unit to fix the reinforcement in the mounting groove. In the utility model, the reinforcement is arranged and embedded in the first concrete slab base layer. This increases the overall structural strength of the external corner. The external corner reinforcing structure has the advantage of lower cost. Meanwhile, the technical defect that the thermal performance of the constructional column is weak, and the construction period is prolonged in the cross operation is overcome.

Description

External corner reinforcing structure

Technical Field

The utility model relates to the technical field of buildings, in particular to an external corner reinforcing structure.

Background

At present, because of frequent fire and falling accidents of an external heat insulation system of an external wall, most provinces and cities are forbidden, and the prefabricated composite heat insulation strip board integrating heat insulation and structure is gradually raised. The composite heat preservation slat is mainly formed by compounding a light wallboard base layer, a heat preservation layer and a fireproof layer, and compared with the traditional method for adhering an anchor heat preservation plate on site by an aerated concrete slat, the composite heat preservation slat adopts a factory integrated prefabrication mode, so that the construction quality is ensured, and the requirement of the assembly rate is met. However, in the aspect of plate joint treatment and corner construction, the external corners of the composite heat preservation batten are weak parts of stress and crack resistance, and reinforcement treatment is needed as in common plates such as aerated concrete plates.

The prior wallboard engineering adopts a reinforcing mode that constructional columns are additionally arranged at external corners, namely, the concrete constructional columns are secondarily poured or precast concrete columns, steel pipe columns and the like are adopted, the wallboard is directly connected with a main structure through the constructional columns, and then is propped against the side of the constructional columns, so that wind load resistance at external corners is facilitated, and cracks caused by deformation between boards are avoided.

The method for reinforcing the external corner in the form of constructional column mainly has the following disadvantages:

1. the constructional column has higher cost and complex construction. The steel constructional column and the precast concrete constructional column have relatively high manufacturing cost, while the cost of the concrete cast-in-situ column is reduced, but complicated rib supporting, formwork supporting, pouring, maintenance and necessary welding and anchoring operations are accompanied, the construction period is long, the flow is complicated, and the cost of the external corner constructional column is relatively high especially for the building body with more concave and convex parts and the project that the constructional column is not poured together with the main body and needs secondary rib planting;

2. the thermal performance of the constructional column is weak. The outer side of the concrete column or the steel column is still required to be covered with a heat insulation plate for heat bridge blocking treatment, but compared with the common materials such as aerated concrete, foam concrete and the like of an external wall panel base layer, the heat conductivity coefficient of the concrete column or the steel column has a larger gap, has a certain heat bridge influence and is not suitable for large-scale arrangement;

3. there is a cross-job. The arrangement of the constructional columns relates to the arrangement of the external wall boards, and the design is required to be deepened for the second time before the external wall board is installed, so that the arrangement scheme, the blanking list and the like of the external wall boards are limited by the arrangement of the constructional columns, the arrangement of the external wall boards and the blanking list are often carried out by different construction teams in sequence, the working surfaces are overlapped, and the construction period is greatly prolonged.

In other words, the method of reinforcing the external corner by using the constructional column in the prior art has the problems of higher cost, complex construction, weaker thermal performance and cross operation.

Disclosure of Invention

The utility model provides an external corner reinforcing structure for solving the technical problems, and solves the problems of higher cost, complex construction, weaker thermal performance and cross operation caused by adopting a mode of reinforcing external corners by constructional columns.

The present utility model provides an external corner reinforcing structure, comprising: the end part of the first concrete slab base is provided with a mounting groove; the second concrete plate base layer is arranged on the first concrete plate base layer and is positioned on one side of the second concrete plate base layer, the second concrete plate base layer is flush with the end part of the first concrete plate base layer, and the first concrete plate base layer and the second concrete plate base layer form external corners; the reinforcement is arranged in the mounting groove, one end of the reinforcement is fixed with the upper steel beam, and the other end of the reinforcement is fixed on the lower floor slab; and wherein an adhesive is disposed between the reinforcement and the first concrete slab to secure the reinforcement within the mounting channel.

In one embodiment, the reinforcement is a U-shaped steel member, the mounting groove includes an upper end open groove and a lower end open groove spaced apart from the upper end open groove in a first direction, the U-shaped steel member includes a plate and two insert plates disposed at two ends of the plate, the two insert plates are disposed in the upper end open groove and the lower end open groove, respectively, and the plate cover is disposed at an end of the first concrete slab base layer.

In one embodiment, the system further comprises a thermal insulating and fire-resistant layer covering the outer surface of the external corner for insulating and fire-protecting the first concrete slab base and the second concrete slab base.

In one embodiment, the thermal insulating and fire blocking layer comprises: the first heat-preservation fireproof plate is paved on the outer surface of the first concrete slab base layer and is flush with the flat plate; and the second heat-preservation fireproof plate is paved on the outer side of the second concrete slab base layer, the flat plate and the end part of the first heat-preservation fireproof plate.

In one embodiment, the first concrete slab base and the second concrete slab base have a first gap therebetween, and the external corner reinforcing structure further comprises a first filler layer disposed within the first gap.

In one embodiment, a second gap is provided between the first concrete slab and the first heat retaining fire protection plate, and the external corner reinforcing structure further comprises a second filler layer disposed within the second gap.

In one embodiment, a third gap is formed between the second concrete slab and the second insulation fire panel, and the external corner reinforcing structure further comprises a third filling layer disposed in the third gap.

In one embodiment, the first, second and third filler layers are the same structure.

In one embodiment, the first filler layer comprises: the caulking agent layer is filled in the first gap; the adhesive layer is arranged in the first gap and used for bonding the caulking agent layer in the first gap; and the polyurethane foaming adhesive layer is arranged at the opening of the first gap and used for preventing the caulking agent layer from falling out of the first gap.

In one embodiment, the system further comprises a fastener, wherein the fastener sequentially penetrates through the heat-preserving fireproof layer, the reinforcing member and the first concrete slab base layer and is used for fixing the heat-preserving fireproof layer, the reinforcing member and the first concrete slab base layer together.

Compared with the prior art, the utility model has the beneficial effects that:

the reinforcement is disposed and embedded within the first concrete slab matrix. This increases the overall structural strength of the external corner. Thereby improving the overall structural strength of the external corner reinforcing structure. Compared with the reinforcing mode of adding constructional columns at external corners in the prior art, the reinforcing mode of the structural strength has the advantage of lower cost. Meanwhile, the technical defect that the thermal performance of the constructional column is weak and the construction period is prolonged in the cross operation is overcome.

Drawings

FIG. 1 is a front cross-sectional view of an external corner reinforcing structure in accordance with an embodiment of the present utility model;

FIG. 2 is a schematic illustration of the connection of the first concrete slab base, reinforcement and first insulating fire panel of FIG. 1;

FIG. 3 is a schematic view of the external corner reinforcing structure of FIG. 1 at another angle (showing upper steel beams and lower floors);

FIG. 4 is a cross-sectional view at B-B in FIG. 3;

fig. 5 is a cross-sectional view at A-A in fig. 3.

In the figure: 10. a first concrete slab base; 11. a mounting groove; 111. an upper open slot; 112. a lower open slot; 20. a second concrete slab base; 30. a reinforcement; 31. a flat plate; 32. inserting plate; 40. a heat-insulating fireproof layer; 41. a first heat-retaining fireproof plate; 42. a second insulation fireproof plate; 50. a filling layer; 51. a caulking agent layer; 52. an adhesive layer; 53. a polyurethane foaming adhesive layer; 60. a second filler layer; 70. a third filler layer; 80. a fastener; 90. an adhesive; 100. loading a steel beam; 200. a floor slab is arranged; 300. connecting angle steel; 400. an anchor plate; 500. a metal expansion bolt.

Detailed Description

The utility model is described in further detail below with reference to the drawings and specific examples.

As shown in fig. 1 and 3, the present utility model provides an external corner reinforcing structure comprising a first concrete slab base 10, a second concrete slab base 20, and a reinforcement 30. Wherein, the end of the first concrete slab 10 is provided with a mounting groove 11, the second concrete slab 20 is arranged on the first concrete slab 10 and is positioned at one side of the second concrete slab 20, the second concrete slab 20 is level with the end of the first concrete slab 10, and the first concrete slab 10 and the second concrete slab 20 form an external corner; the reinforcement 30 is installed in the installation groove 11, one end of the reinforcement 30 is fixed with the upper steel girder 100, and the other end of the reinforcement 30 is fixed on the lower floor slab 200; an adhesive 90 is provided between the reinforcement 30 and the first concrete slab 10 to secure the reinforcement 30 within the mounting channel 11.

In the above arrangement, the reinforcement 30 is provided and the reinforcement 30 is embedded within the first concrete slab 10. This increases the overall structural strength of the external corner. Thereby improving the overall structural strength of the external corner reinforcing structure. Compared with the reinforcing mode of adding constructional columns at external corners in the prior art, the reinforcing mode of the structural strength has the advantage of lower cost. Meanwhile, the technical defect that the thermal performance of the constructional column is weak and the construction period is prolonged in the cross operation is overcome.

Specifically, as shown in fig. 1, 2, 4 and 5, in one embodiment, the reinforcement 30 is a U-shaped steel member, the installation groove 11 includes an upper open groove 111 and a lower open groove 112 spaced apart from the upper open groove 111 in a first direction, the U-shaped steel member includes a flat plate 31 and two insert plates 32 disposed at both ends of the flat plate 31, the two insert plates 32 are disposed in the upper open groove 111 and the lower open groove 112, respectively, and the flat plate 31 is disposed at an end of the first concrete slab 10.

Specifically, as shown in fig. 1 and 2, in one embodiment, a thermal insulating and fire-resistant layer 40 is further included, and the thermal insulating and fire-resistant layer 40 covers the outer surface of the external corner for insulating and fire-protecting the first concrete slab 10 and the second concrete slab 20.

Specifically, as shown in fig. 1 and 2, in one embodiment, the insulating and fireproof layer 40 includes a first insulating and fireproof plate 41 and a second insulating and fireproof plate 42. Wherein the first heat-preserving fireproof plate 41 is laid on the outer surface of the first concrete slab 10 and is flush with the flat plate 31; a second insulating fire protection panel 42 is laid on the outside of the second concrete slab 20, on the slab 31 and at the end of the first insulating fire protection panel 41.

Specifically, as shown in fig. 1 and 2, in one embodiment, there is a first gap between the first concrete slab 10 and the second concrete slab 20, and the corner reinforcing structure further includes a first filler layer 50, the filler layer 50 being disposed within the first gap.

Specifically, as shown in fig. 1, in one embodiment, a second gap is provided between the first concrete slab 10 and the first heat-preserving fire-proof plate 41, and the external corner reinforcing structure further includes a second filling layer 60, and the second filling layer 60 is disposed in the second gap.

Specifically, as shown in FIG. 1, in one embodiment, the male corner reinforcing structure further includes a third filler layer 70, the third filler layer 70 being disposed within the third gap.

Specifically, as shown in fig. 1, in one embodiment, the first filling layer 50, the second filling layer 60, and the third filling layer 70 are identical in structure.

Specifically, as shown in fig. 1, in one embodiment, the first filler layer 50 includes a caulk layer 51, an adhesive layer 52, and a polyurethane foam layer 53. Wherein the caulking agent layer 51 is filled in the first slit, and the adhesive layer 52 is disposed in the first slit for bonding the caulking agent layer 51 in the first slit; the polyurethane foam adhesive layer 53 is disposed at the opening of the first slit for preventing the caulking agent layer 51 from coming out of the first slit.

Specifically, as shown in fig. 1, in one embodiment, the heat insulation and fire protection layer 40, the reinforcement 30 and the first concrete slab 10 are sequentially penetrated by the fastener 80, and the fastener 80 is used for fixing the heat insulation and fire protection layer 40, the reinforcement 30 and the first concrete slab 10 together.

The utility model discloses an external corner reinforcing method by means of U-shaped steel pieces, which aims at external corner reinforcing of a composite heat preservation slat (a first heat preservation fireproof plate 41 and a second heat preservation fireproof plate 42), namely fixing the U-shaped steel pieces at external corner positions, and grooving from the side of a base layer of the composite heat preservation slat (an upper open groove 111 and a lower open groove 112), so that a wallboard is tightly propped against the U-shaped steel pieces to limit deformation of the U-shaped steel pieces.

The external corner reinforcing method of the composite heat preservation slat mainly comprises the following steps (refer to fig. 1 to 5):

s1, fixing the U-shaped steel piece.

And according to the spring line position, the U-shaped steel piece is respectively connected with a steel beam (upper steel beam) and a floor slab (lower floor slab) up and down. For a concrete structure, an anchor plate is anchored at the bottom of a beam through a metal expansion bolt, and then a U-shaped steel piece is fully welded on the anchor plate; for steel structure, the width of the section of the steel beam is smaller and is often smaller than the thickness of the wallboard base layer, so that the upper end of the steel beam is required to be welded with the connecting angle steel 300 firstly for enhancing the connection reliability of the U-shaped steel piece and the steel beam, and then the connecting angle steel 300 is lapped and bolted on the upper surface of the lower flange of the steel beam. The lower end of the U-shaped steel piece is connected with the floor slab by the anchor plate 400 and the metal expansion bolts 500, and the connection between the U-shaped steel piece and the main body structure can be indirectly realized by embedding the iron piece in the floor slab and then welding the iron piece with the U-shaped steel piece.

S2, wallboard pretreatment.

According to the external wall board row board diagram, any external wall board on one side of the external corner is taken, the board side surface of the external wall board is subjected to leveling treatment, a finished aerated concrete board which is commonly used for the composite heat preservation slat base layer is often adopted, and the board side of the external wall board is often adopted for reinforcing the inter-board occlusion by adopting a mortise-tenon groove structure, so that the grooves on the side surface of the external wall board are filled up by adopting an ALC special adhesive or the board side convex grooves are cut off; then grooving (mounting groove) is carried out on the inner side surface and the outer side surface of the wallboard base layer along the direction vertical to the board width, and the grooving depth and width are slightly larger than the height and limb thickness of the U-shaped steel piece, so that the U-shaped steel piece is inserted into the groove and is not exposed on the inner side of the wallboard, and plastering is affected.

S3, splicing the wallboard.

And hoisting the two side wallboards at the external corners to the designated positions according to the plate arrangement diagram, and completing the installation of the upper and lower nodes.

S4, heat bridge treatment.

Removing rust spots on the outer side of the U-shaped steel piece, spraying antirust paint for priming, fully coating polymer bonding mortar after the antirust paint is dried, and sticking a heat-insulating plate on the outer side of the U-shaped steel piece to block a heat bridge; then, mechanically perforating the heat-insulating plate and the U-shaped steel piece, and anchoring the heat-insulating plate (the second heat-insulating fireproof plate) on the wallboard base layer by adopting a plastic anchor bolt (a fastener); and finally, embedding an ALC special adhesive into the joint between the heat-insulating board and the adjacent wallboard and plugging by using polyurethane foam adhesive.

S5, wall surface plastering and crack resistance treatment.

And (3) sequentially constructing a heat insulation slurry leveling layer and a finishing layer on the outer sides of the wallboard, the U-shaped steel piece outer side heat insulation board and the like, wherein an additional glass fiber net is needed to be pressed in each joint in the external corner finishing layer and is lapped to the wall surfaces on two sides.

Compared with the existing external corner reinforcing method, the method has the following beneficial effects:

1. the dry construction is adopted, the complex formwork supporting and pouring procedures of the constructional column are avoided, the U-shaped steel piece is different from the traditional constructional column, the space of the outer wall is not occupied, the arrangement plate and the blanking of the outer wall are not influenced, the construction period can be shortened greatly along with the installation of the outer wall.

2. The cost is low. The cost of the U-shaped steel piece is far lower than that of a concrete or steel constructional column, and high-cost procedures such as bar planting, formwork pouring and the like are not needed, so that the cost is greatly reduced;

3. and a thermal bridge-free structure. The U-shaped steel member is made of metal with larger heat conductivity coefficient, but is inserted into the structural characteristics of the wallboard base layer, the heat transfer path of the wallboard is not changed, the surface area of the U-shaped steel member is far smaller than that of the constructional column, and the heat insulation structure of the outer side adhesive anchor of the U-shaped steel member has weaker heat bridge effect and smaller difference between the external corner and the heat transfer performance of a common wall surface.

In the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the utility model without departing from the principles thereof are intended to be comprehended by those skilled in the art and are intended to be within the scope of the utility model.

Claims (10)

1. An external corner reinforcing structure, comprising:

the end part of the first concrete slab base is provided with a mounting groove;

the second concrete plate base layer is arranged on the first concrete plate base layer and is positioned on one side of the second concrete plate base layer, the second concrete plate base layer is flush with the end part of the first concrete plate base layer, and the first concrete plate base layer and the second concrete plate base layer form external corners;

the reinforcement is arranged in the mounting groove, one end of the reinforcement is fixed with the upper steel beam, and the other end of the reinforcement is fixed on the lower floor slab; and

and an adhesive is arranged between the reinforcement and the first concrete slab base layer so as to fix the reinforcement in the mounting groove.

2. The external corner reinforcing structure according to claim 1, wherein the reinforcing member is a U-shaped steel member, the mounting groove comprises an upper end opening groove and a lower end opening groove which is spaced from the upper end opening groove in a first direction, the U-shaped steel member comprises a flat plate and two insert plates which are arranged at two ends of the flat plate, the two insert plates are respectively arranged in the upper end opening groove and the lower end opening groove, and the flat plate cover is arranged at the end part of the first concrete slab base.

3. The external corner reinforcing structure of claim 2, further comprising a thermal insulating and fire resistant layer overlying an outer surface of the external corner for insulating and fire protecting the first and second concrete slab substrates.

4. The external corner reinforcing structure according to claim 3, wherein said heat preservation and fire protection layer comprises:

the first heat-preservation fireproof plate is paved on the outer surface of the first concrete slab base layer and is flush with the flat plate; and

the second heat preservation fireproof plate is paved on the outer side of the second concrete slab base layer, the flat plate and the end part of the first heat preservation fireproof plate.

5. The corner reinforcing structure of claim 3, wherein a first gap is provided between the first concrete slab base and the second concrete slab base, the corner reinforcing structure further comprising a first filler layer disposed within the first gap.

6. The corner reinforcing structure of claim 5, wherein a second gap is provided between the first concrete slab base and the first heat retaining fire plate, the corner reinforcing structure further comprising a second filler layer disposed within the second gap.

7. The external corner reinforcing structure of claim 6, wherein a third gap is provided between the second concrete slab base and the second insulation fire panel, the external corner reinforcing structure further comprising a third filler layer disposed within the third gap.

8. The external corner reinforcing structure of claim 7, wherein the first, second and third filler layers are the same structure.

9. The external corner reinforcing structure of claim 7, wherein the first filler layer comprises:

a caulking agent layer filled in the first gap; and

the adhesive layer is arranged in the first gap and used for bonding the caulking agent layer in the first gap; and

the polyurethane foaming adhesive layer is arranged at the opening of the first gap and used for preventing the caulking agent layer from falling out of the first gap.

10. The external corner reinforcing structure of claim 3, further comprising fasteners sequentially threaded through the insulating and fire-blocking layer, the reinforcement, and the first concrete slab base for securing the insulating and fire-blocking layer, the reinforcement, and the first concrete slab base together.