CN207130912U - A kind of new assembling type steel structure external wall system - Google Patents

Abstract

The utility model relates to a prefabricated exterior wall, in particular to a novel prefabricated steel structure exterior wall system which sequentially includes a CCA board, an air layer and a composite energy-saving board layer from the outside to the inside, and the composite energy-saving board is fixed with a vertical keel , the vertical keel passes through the air layer to fix the CCA board; the joints between the CCA boards are filled with building sealant; a concrete waterproof sill is provided between the composite energy-saving board placed outside the outer wall and the floor slab. The exterior wall adopts composite insulation, and the insulation wall will not crack due to thermal expansion and contraction.

Description

A new type of prefabricated steel structure exterior wall system

technical field

The invention relates to an assembled exterior wall, in particular to a novel assembled steel structure exterior wall system.

Background technique

Due to the material performance characteristics of steel itself, the thermal conductivity of steel is large, generally about 40 times that of concrete, so it is necessary to strengthen the construction of the insulation system of steel structure houses. Common practices and drawbacks of existing steel structure residential exterior wall insulation systems: 1) Hang lightweight strips on both sides of the column and beam components of the exterior wall, and cast in-situ lightweight concrete in the middle cavity. There are a lot of on-site wet work on site, the construction is cumbersome, and concrete needs to be poured twice, and the cavity of each partition wall needs to be poured separately, so the construction quality is not easy to guarantee. 2) Lightweight blocks are built on the steel beams of the outer wall, and insulation boards are pasted on the joints of the steel structure. There is also wet work on site, and the construction efficiency is low. Both of the above two construction methods will involve a large number of on-site wet operations, which cannot truly reflect the advantages of fully industrialized manufacturing and installation of prefabricated steel structure residential construction, and the construction period is relatively long. The exterior wall only uses concrete sandwich insulation slats. Since the slats are exposed to the external atmosphere for a long time, the influence of temperature difference and humidity will cause cracks in the joints between the slats due to thermal expansion and contraction, and the single concrete sandwich slats Insulation performance can not meet the energy-saving requirements.

Contents of the invention

In order to solve the disadvantages of poor thermal insulation effect of external walls in the prior art, more wet work, and cracks in thermal insulation strips due to thermal expansion and contraction, the present invention provides a new type of assembled steel structure external wall system. The wall improves the thermal insulation effect by setting an air layer on the outer wall of the house, and prevents the occurrence of cracks in the thermal insulation strips by using CCA boards on the outer wall surface. In order to achieve the above purpose, the technical solution adopted by the present invention is: a new type of assembled steel structure exterior wall system, which includes CCA board, air layer and composite energy-saving board layer from outside to inside, and the composite energy-saving board is fixed with Vertical keels, the vertical keels pass through the air layer to fix the CCA boards; the joints between the CCA boards are filled with building sealant;

A concrete waterproof sill is provided between the composite energy-saving board placed outside the outer wall and the floor slab.

Further, a connecting piece is installed on the keel, and the CCA board is fixed on the keel through the connecting piece.

Further, the thickness of the air layer is 50mm.

Further, it also includes a thick-coated fireproof paint layer and steel support. The structure of the outer wall consists of a CCA board, an air layer, a composite energy-saving board layer, a fireproof paint layer and a steel support in the order of the wall placed outside the house. .

Further, the structure of the outer wall is supported from steel to the inner wall of the building in sequence: steel support, fireproof paint layer, composite energy-saving board layer and interior wall decoration layer.

Further, the concrete waterproof sill height is 100mm.

Further, there is an I-shaped steel beam at the contact end of the outer wall and the floor slab, and the structure of the contact end of the outer wall and the floor slab is: an I-shaped steel beam in the middle, thick-coated fireproof coating layers on both sides, rock A cotton layer, a lightweight composite energy-saving board and a decorative wall layer, the thick-coated fireproof paint layer wrapping the I-shaped steel beam.

Further, there is a steel tube concrete column between two adjacent walls, the steel tube concrete column is set at the angle between the two walls, and the connection between the lightweight composite energy-saving board and the steel tube concrete column is reserved. The lightweight composite energy-saving panel is fixedly connected to the concrete-filled steel tube column through an angle steel, one end of the angle steel is welded to the steel column in the steel-filled concrete column, and the other end passes through the reserved seam on the lightweight composite energy-saving panel. In the lightweight composite energy-saving board.

Further, the concrete-filled steel pipe column is sequentially wrapped with a fireproof coating layer, a thermal insulation rock wool layer, an air layer and a CCA board from the inside to the outside.

Beneficial effects produced by the present invention: (1) The external wall in the present invention basically cancels the existing traditional method of on-site wet work, and has the advantages of simple construction and high degree of industrialization; The thermal insulation performance of the air cavity itself makes the overall thermal insulation performance of the outer wall of the steel structure house meet the energy-saving standard; (3) Due to the stable performance of the outer layer CCA board (autoclaved fiber cement board) The medium deformation is small, and the cracks are not easy to occur between the joints. (4) The prefabricated structure in the present invention solves the difficult problem of construction difficulty in the process of installing oblique steel supports.

Description of drawings

Fig. 1 Embodiment 1 outer wall and floor structural schematic diagram;

Fig. 2 Example 1 exterior wall and steel pipe concrete column structural schematic diagram;

Fig. 3 embodiment 2 outer wall structure schematic diagram;

In the figure: 1. CCA board, 2. Air layer, 3. Composite energy-saving board, 4. Floor slab, 5. I-shaped steel beam, 6. Waterproof sill, 7. Fireproof coating layer, 8. Steel bar, 9. Steel tube concrete Column, 10, keel, 11, connector, 12, rock wool, 13, steel support.

Detailed ways

The present invention will be further explained in detail below in conjunction with the accompanying drawings and specific embodiments, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Example 1 - Design system of exterior wall without steel support

As shown in Figure 1, a new type of prefabricated steel structure exterior wall system without steel support includes CCA board 1, air layer 2 and composite energy-saving board layer from outside to inside, and vertical keel 10 is fixed on the composite energy-saving board 3 , the vertical keel 10 passes through the air layer 2 to fix the CCA board 1 ; the joints between the CCA boards 1 are filled with building sealant, specifically marble glue. A concrete waterproof sill 6 is provided between the composite energy-saving panel 3 placed on the outer side of the outer wall and the floor 4, and the waterproof sill 6 and the composite energy-saving panel 3 pass through The steel bars 8 are fixedly connected, the contact surface between the waterproof sill 6 and the composite energy-saving board 3 is filled with cement mortar, the lightweight composite energy-saving board 3 is fixed on the floor 4 between the floors through the steel bars 8, and the composite energy-saving board 3 and the floor 4 are in contact The surface is filled with cement mortar, and the two adjacent composite energy-saving panels 3 are connected by a groove, and the wallboard joint material is embedded in the groove. In order to increase the firmness between the two lightweight composite energy-saving boards 3, an anti-crack tape is pasted on the outside between the boards.

In order to fix the CCA board 1 conveniently, a connecting piece 11 is installed on the keel 10 , and the CCA board 1 is fixed on the keel 10 through the connecting piece 11 . In order to increase the supporting strength of the wall, an I-shaped steel beam 5 is arranged between the wall and the floor 4 between the two floors, and the I-shaped steel beam 5 is at the contact end of the wall and the floor 4. The specific structure is: I-shaped steel beam 5 in the middle, thick-coated fireproof coating layer 7, 12 layers of rock wool, lightweight composite energy-saving board 3 and CCA board 1 or decorative wall layer on both sides. Type fireproof coating layer 7 wraps described I-shaped steel beam 5.

A steel tube concrete column 9 is arranged between two adjacent steel support 13 walls and no steel support 13 walls or two no steel support 13 walls, and the steel tube concrete column 9 is arranged at the angle between the two walls. A seam is reserved at the connecting end of the lightweight composite energy-saving panel 3 and the concrete-filled steel tube column 9, the lightweight composite energy-saving panel 3 and the concrete-filled steel tube column 9 are fixedly connected by an angle steel, and one end of the angle steel is welded to the concrete-filled steel tube column 9, one end passes through the reserved seam on the lightweight composite energy-saving panel 3 and is placed in the lightweight composite energy-saving panel 3. The concrete-filled steel tube column 9 is sequentially wrapped with a fireproof coating layer 7, thermal insulation rock wool 12, an air layer 2 and a CCA board 1 from the inside to the outside.

The concrete waterproof sill 6 in the present invention has a height of 100mm, the air layer 2 has a thickness of 50mm, the lightweight composite energy-saving board 3 has a thickness of 150mm, the CCA board 1 has a thickness of 10mm, and the vertical keel 10 is QC50.

Example 2 - 13 exterior wall design system with steel support

The difference between this embodiment and Embodiment 1 is only that: an oblique steel support 13 is provided in the middle of the outer wall, and the extension from the steel support 13 to the outer wall of the house is steel support 13, fireproof coating layer 7, composite Energy-saving board layer, air layer 2 and CCA board 1; the wall structure of the outer wall is from steel support 13 to the inner wall of the house: steel support 13, fireproof coating layer 7, composite energy-saving board 3 layers and interior wall decoration layer.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made, these improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (9)

1. A new type of prefabricated steel structure exterior wall system, characterized in that: from the outside to the inside, it includes a CCA board, an air layer and a composite energy-saving board layer, and the composite energy-saving board is fixed with a vertical keel, and the vertical keel passes through The CCA board is fixed through the air layer; the joints between the CCA boards are filled with building sealant; A concrete waterproof sill is provided between the composite energy-saving board placed outside the outer wall and the floor slab. 2. The prefabricated steel structure exterior wall system according to claim 1, characterized in that: a connecting piece is installed on the keel, and the CCA board is fixed on the keel through the connecting piece. 3. The fabricated steel structure exterior wall system according to claim 1, characterized in that: the thickness of the air layer is 50 mm. 4. The prefabricated steel structure exterior wall system according to claim 1, characterized in that: it also includes a thick-coated fireproof coating layer and steel supports, and the structure of the exterior wall is inward from the wall placed outside the house. It is CCA board, air layer, composite energy-saving board layer, fireproof coating layer and steel support. 5. The prefabricated steel structure exterior wall system according to claim 4, characterized in that: the structure of the exterior wall is supported by steel to the inner wall of the house in order: steel support, fireproof coating layer, composite energy-saving board layer and interior wall decorative layer. 6. The prefabricated steel structure exterior wall system according to claim 1, wherein the height of the concrete waterproof sill is 100 mm. 7. The prefabricated steel structure exterior wall system according to claim 1, characterized in that: the contact end of the exterior wall and the floor is provided with an I-shaped steel beam, and the structure of the contact end of the exterior wall and the floor is: an intermediate work For the I-shaped steel beam, there are thick-coated fireproof paint layer, rock wool layer, lightweight composite energy-saving board and decorative wall layer on both sides, and the thick-coated fireproof paint layer wraps the I-shaped steel beam. 8. The prefabricated steel structure exterior wall system according to claim 7, characterized in that: there is a steel tube concrete column between two adjacent walls, and the steel tube concrete column is set at the angle between the two walls, Joints are reserved at the connecting ends of the lightweight composite energy-saving board and the concrete-filled steel pipe column, and the lightweight composite energy-saving board is fixedly connected with the concrete-filled steel pipe column through an angle steel, and one end of the angle steel is welded to the steel pipe inside the concrete-filled steel pipe column. On the column, one end passes through the reserved seam of the lightweight composite energy-saving panel and is placed in the lightweight composite energy-saving panel. 9. The prefabricated steel structure exterior wall system according to claim 8, characterized in that: the concrete-filled steel tube column is sequentially wrapped with a fire-resistant coating layer, an insulating rock wool layer, an air layer and a CCA board from the inside to the outside.