CN103114663B - Assemble type multifunctional outer wall body and production and installation method thereof - Google Patents

Abstract

The invention discloses an assemble type multifunctional outer wall body and a production and installation method thereof. An assemble type outer wall body mainly takes lightweight section as a keel, takes expanded polystyrene (EPS) thermal mortar as a heat preservation interlayer and is mainly applied to steel structure construction at present. The existing assemble type outer wall body has the problems that durability is bad, thermal bridge effect is notable, manufacturing cost is high, adaptability with a reinforced concrete structure is bad and the like. The assemble type multifunctional outer wall body is a frame interlayer composite structure and takes a fine stone reinforced concrete frame as the keel. Cellular concrete is filled in bars of the frame, and a window opening is reserved in the frame. Cement fiber panels are respectively fixedly installed on the inner side and the outer side of the fine stone reinforced concrete frame, and decorating layers are arranged on the cement fiber panels. The assemble type multifunctional outer wall body is suitable for assembling an integrated type structure building or a cast-in-place concrete building, split joint of the assemble type multifunctional outer wall body and a building main body structure is firm, and thus integrity is good. The assemble type multifunctional outer wall body has the integrated functions of protection, heat preservation, decoration, water proofing and the like, all working procedures are settled in one step, an outer scaffold does not need to be arranged in the process of installation, and thus construction speed is fast.

Description

Production and installation method of a prefabricated multifunctional exterior wall

technical field

The invention relates to a new type of building industrialized building wall, in particular to an assembled multifunctional outer wall and its production and installation methods.

Background technique

my country's traditional construction production methods have problems such as high building energy consumption, large resource consumption, many engineering quality and safety problems, low technological content in the construction industry, low labor productivity, and large environmental load. With the shortage of labor in the construction market, it has become increasingly prominent. It is an important way and an inevitable choice for the sustainable development of my country's construction industry to change the traditional construction production mode and promote the industrialization of new construction. At present, the prefabricated external wall mainly uses light steel as the keel and EPS insulation mortar as the insulation interlayer, and is mainly used in steel structure buildings. There are many problems such as poor durability, significant thermal bridge effect, high cost, and poor adaptability to reinforced concrete structures. question.

Contents of the invention

In order to solve the above-mentioned defects in the current prefabricated exterior wall, the present invention provides a prefabricated multifunctional exterior wall suitable for cast-in-place concrete structure system or prefabricated concrete structure system, which integrates enclosure, heat preservation, decoration, Waterproof and other functions in one.

The present invention adopts the following technical scheme: an assembled multifunctional exterior wall, characterized in that it is a frame sandwich composite structure, with a fine stone reinforced concrete frame as the keel, and foam concrete is filled in the grid of the frame and a window hole is left A cement fiber panel is fixedly installed on the inside and outside of the fine stone reinforced concrete frame, and a decorative layer is arranged on the cement fiber panel.

Further, the fine stone reinforced concrete frame is a prefabricated integrated reinforced concrete structure, the left and right sides of the fine stone reinforced concrete frame are buried with tie bars, the top is buried with lifting rings, and the bottom is buried with pre-embedded iron parts. Temporary support points are buried in the vertical frames on both sides; on the fine stone reinforced concrete frame, there are pipe perforations parallel to the wall and anchor through holes perpendicular to the wall for anchoring the inner and outer cement fiber panels. The size of the frame is designed according to the size of the bay. In order to ensure the strength of the frame and meet the protection requirements for steel bars, the width of the frame is 60-80mm. The thickness of the frame can be adjusted according to the requirements of energy saving and sound insulation, and can be adjusted within the range of 120-240mm. The tie bars are used for the connection between the prefabricated multifunctional exterior wall and the columns, the hoisting rings are used for hoisting during production and installation, and the pre-embedded iron parts are used for welding with the reserved iron parts on the floor during installation. The brace support points are used for temporary fixation of adjustable braces during installation.

Further, the foamed concrete is cast-in-place foamed concrete or prefabricated foamed concrete insulation board, the bulk density of the foamed concrete is 200-700kg/m ³ , and it has good thermal insulation performance, durability performance and fire prevention performance. The foam concrete poured on site is beneficial to the embedding of the line pipe in the wall, while the prefabricated foam concrete insulation board does not need maintenance and the production speed is fast.

Further, the flexural strength of the cement fiber panel is greater than 10MPa, the thickness of the inner cement fiber panel is 5-8mm, and the four sides are respectively flush with the surrounding edges of the fine stone reinforced concrete frame; the outer cement fiber panel has waterproof function, and the thickness is 10-8mm. 20mm, the bottom edge is flush with the bottom of the fine stone reinforced concrete frame, and the remaining three sides are 120-400mm wider than the edge of the fine stone reinforced concrete frame; the inner and outer cement fiber panels are bonded to the fine stone reinforced concrete frame by bonding mortar, and The tie bolts pass through the anchor through holes on the fine stone reinforced concrete frame to carry out anti-tension anchorage.

Further, the decorative layer is directly arranged on the cement fiber panel, which is a paint layer or a facing brick. Due to the smooth surface of the cement fiber panel, the decorative layer can be directly made on the cement fiber panel.

The production method of the above prefabricated multifunctional exterior wall is as follows: first, prefabricate the fine stone reinforced concrete frame; horizontally place the inner cement fiber panel as the bottom form, spray a layer of bonding mortar as required, and place the fine stone reinforced concrete frame on it , bury pre-buried pipes, pour foam concrete or paste foam concrete insulation boards in the frame grid, and leave window holes; after the cast-in-place foam concrete curing is completed or the foam concrete insulation boards are pasted, spray a layer on it Adhesive mortar, cover the outer cement fiber panels, use tie bolts to anchor the inner and outer cement fiber panels to the fine stone reinforced concrete frame; finally, install window frames or integral windows as required, on the inner and outer cement fiber panels Install the decorative layer and stick the protective film.

The installation method of the above-mentioned prefabricated multifunctional exterior wall is as follows: After the prefabricated multifunctional exterior wall is hoisted in place, the pre-embedded iron parts at the bottom of the exterior wall are welded to the pre-embedded parts in the floor slab, and supported by temporary braces point erection of adjustable diagonal braces for temporary fixation; the tie bars on the left and right sides of the outer wall and the post-cast concrete columns or part of the post-cast concrete columns are poured as a whole. When pouring, the outer sides of the left and right sides of the outer wall The cement fiber panel is used as the outer formwork, and an insulation layer is set between the post-cast concrete column and the outer panel to reduce the thermal bridge effect of the post-cast concrete column; the outer cement fiber panel on the top of the outer wall is used as a post-cast concrete beam or part The outer formwork of the post-cast concrete beam is used, and a layer of thermal insulation material is arranged between the post-cast concrete beam and the outer panel to reduce the thermal bridge effect of the concrete beam.

Further, in order to prevent the stress of the post-cast concrete beam from being transmitted downward to the prefabricated multifunctional exterior wall, an elastic buffer layer can be arranged on the top of the prefabricated multifunctional exterior wall.

The beneficial effects of the present invention are as follows: 1. The prefabricated multifunctional exterior wall of the present invention is suitable for assembling integral structural buildings or cast-in-place concrete structural buildings, and is firmly spliced with the main structure of the building and has good integrity;

2. The prefabricated multifunctional exterior wall of the present invention integrates the functions of enclosure, heat preservation, decoration, waterproofing, etc., and all the processes are completed in one step, and there is no need to erect external scaffolding during the installation process. The construction speed is fast and the economic benefits are obvious;

3. The materials used in the assembled multifunctional exterior wall of the present invention are basically inorganic materials, which have good durability and fire resistance.

Description of drawings

Fig. 1 is the structural representation of fine stone reinforced concrete frame of the present invention;

Fig. 2 is a structural schematic diagram of the assembled multifunctional exterior wall of the present invention;

Fig. 3 is a schematic diagram of the splicing of the assembled multifunctional exterior wall and the column of the present invention;

Fig. 4 is a schematic diagram of splicing of the assembled multifunctional exterior wall with beams and floors of the present invention.

Detailed ways

The present invention will be further elaborated below in conjunction with the accompanying drawings of the description.

As shown in Figure 1-2, the assembled multifunctional exterior wall is a frame sandwich composite structure, with a fine stone reinforced concrete frame 1 as the keel, the frame lattice is filled with foam concrete 12 and a window hole 2 is left, and the fine stone Cement fiber panels 3 and 4 are fixedly installed on the inside and outside of the reinforced concrete frame, and a decorative layer is arranged on the cement fiber panels. The foam concrete is foam concrete poured on site or a prefabricated foam concrete insulation board, and the bulk density of the foam concrete is 200-700kg/m ³ .

The fine stone reinforced concrete frame is a prefabricated integral reinforced concrete structure, the left and right sides of the fine stone reinforced concrete frame are embedded with tie bars 5, the top is embedded with lifting rings 6, and the bottom is embedded with embedded iron parts 7, Temporary bracing support points 8 are embedded in the vertical frames on both sides of the window opening; wire pipe perforations 9 parallel to the wall surface and anchorage holes for anchoring the inner and outer cement fiber panels perpendicular to the wall surface are opened on the fine stone reinforced concrete frame. Through hole 10.

The flexural strength of the cement fiber panel is greater than 10MPa, the thickness of the inner cement fiber panel 3 is 5-8mm, and the four sides are respectively flush with the edges around the fine stone reinforced concrete frame; the outer cement fiber panel 4 has a waterproof function, and the thickness is 10-8mm. 20mm, the bottom edge is flush with the bottom of the fine stone reinforced concrete frame, and the remaining three sides are 120-400mm wider than the edge of the fine stone reinforced concrete frame; the inner and outer cement fiber panels are bonded to the fine stone reinforced concrete frame by bonding mortar, and The tie bolts 11 pass through the anchoring through holes on the fine stone reinforced concrete frame to carry out opposite pull anchorage.

The manufacturing method of the above-mentioned prefabricated multifunctional exterior wall is as follows:

As shown in Figure 3, first, the fine stone reinforced concrete frame is prefabricated, and its formwork can be hand-nailed wooden formwork or a custom-made integral steel formwork; the inner cement fiber panel is placed horizontally as the bottom formwork, Spray a layer of bonding mortar, place a prefabricated fine stone reinforced concrete frame, pour foam concrete or paste foam concrete insulation boards in the frame, and bury pre-buried pipes; wait for the cast-in-place foam concrete to be cured or foam concrete paste After the completion, spray a layer of bonding mortar on it, cover the outer cement fiber panel, and use tie bolts to anchor the inner and outer cement fiber panels to the fine stone reinforced concrete frame; finally, install the window frame or integral window as required , make a decorative layer on the inner and outer cement fiber panels and paste a protective film.

The installation process of the prefabricated multifunctional exterior wall is as follows:

As shown in Figure 4, after the prefabricated multifunctional exterior wall is hoisted in place, the embedded iron parts at the bottom of the wall are welded to the embedded parts 13 above the middle beam 20 of the floor 19, and adjustable diagonal braces are erected 14 for temporary fixation; the tie bars 5 on the left and right sides of the assembled multifunctional exterior wall are poured into a whole with the post-cast concrete column or part of the post-cast concrete column. When pouring, the left and right sides of the assembled multifunctional exterior wall The extension part of the outer panel is used as the outer formwork, and a layer of thermal insulation layer 16 is placed between the post-cast concrete column and the outer panel to reduce the thermal bridge effect of the post-cast concrete column; similarly, the assembled multifunctional exterior wall The outer panel at the top can be used as the outer formwork of the post-cast concrete beam or part of the post-cast concrete beam. A layer of thermal insulation material layer 18 is placed between the post-cast concrete beam and the outer panel to reduce the thermal bridge effect of the post-cast concrete beam. In order to prevent the post-cast concrete beam stress from being transmitted downward to the prefabricated multifunctional exterior wall, an elastic buffer layer can be arranged on the top of the prefabricated multifunctional exterior wall.

The scope of protection of the present invention is not limited to the above description, any other form of product inspired by the present invention, regardless of any changes in shape or structure, and any technical solutions that are the same as or similar to the present invention, are included in the scope of the present invention. within the scope of protection.

Claims (7)

1. A production method of an assembled multifunctional exterior wall, the assembled multifunctional exterior wall is a frame sandwich composite structure, with the fine stone reinforced concrete frame (1) as the keel, and foam is filled in the sash of the frame Concrete (12) leaves a window hole (2), and cement fiber panels (3, 4) are fixedly installed on the inside and outside of the fine stone reinforced concrete frame, and the cement fiber panels are provided with a decorative layer; The production method of the prefabricated multifunctional exterior wall is as follows: first, prefabricate the fine stone reinforced concrete frame; horizontally place the inner cement fiber panel as the bottom form, spray a layer of bonding mortar as required, and place fine stone reinforced concrete on it Frame, bury pre-buried pipes, pour foam concrete or paste foam concrete insulation boards in the frame grid, and leave window holes; after the cast-in-place foam concrete curing is completed or the foam concrete insulation boards are pasted, spray a Layer bonded mortar, cover the outer cement fiber panels, use tie bolts to anchor the inner and outer cement fiber panels to the fine stone reinforced concrete frame; finally, install window frames or integral windows as required, and the inner and outer cement fiber panels Install the decorative layer and paste the protective film. 2. The production method of the assembled multifunctional exterior wall according to claim 1, characterized in that: the fine stone reinforced concrete frame is a prefabricated integrated reinforced concrete structure, and the left and right sides of the fine stone reinforced concrete frame are The tie bars (5) are buried on the side, the hoisting ring (6) is buried on the top, the embedded iron parts (7) are buried at the bottom, and temporary support points (8) are buried in the vertical frames on both sides of the window opening; The stone reinforced concrete frame is provided with line pipe perforations (9) parallel to the wall surface and anchoring through holes (10) perpendicular to the wall surface for anchoring inner and outer cement fiber panels. 3. The production method of the assembled multifunctional exterior wall according to claim 1, characterized in that: the foamed concrete is a foamed concrete poured on site or a prefabricated foamed concrete insulation board, and the bulk density of the foamed concrete is 200- 700kg/m ³ . 4. The production method of the assembled multifunctional exterior wall according to claim 1, characterized in that: the flexural strength of the cement fiber panel is greater than 10MPa, and the thickness of the inner cement fiber panel (3) is 5-8mm, and The four sides are respectively flush with the surrounding edges of the fine stone reinforced concrete frame; the outer cement fiber panel (4) has waterproof function, the thickness is 10-20mm, the bottom edge is flush with the bottom end of the fine stone reinforced concrete frame, and the other three sides are lower than the fine stone steel bars The edge of the concrete frame is extended by 120-400mm; the inner and outer cement fiber panels are bonded to the fine stone reinforced concrete frame through bonding mortar, and the tie bolts (11) are used to pass through the anchor holes on the fine stone reinforced concrete frame to carry out anti-tension anchorage. 5. The method for producing a prefabricated multifunctional exterior wall according to claim 1, wherein the decorative layer is directly arranged on the cement fiber panel, and is a paint layer or a face brick. 6. The installation method of the prefabricated multifunctional exterior wall obtained by any one of claims 1-5, characterized in that: after the prefabricated multifunctional exterior wall is placed in place, the pre-embedded iron at the bottom of the exterior wall The part (7) is welded with the embedded part (13) in the floor, and the adjustable diagonal brace (14) is erected at the temporary support point for temporary fixation; the tie bars (5) on the left and right sides of the outer wall It is integrated with the post-cast concrete column (15) or part of the post-cast concrete column. When pouring, the outer cement fiber panels on the left and right sides of the outer wall are used as the outer formwork. Between the post-cast concrete column and the outer cement fiber panel A layer of insulation layer (16) is set; the outer cement fiber panel on the top of the outer wall is used as the outer formwork of the post-cast concrete beam (17) or part of the post-cast concrete beam, and the outer cement fiber panel is arranged between the post-cast concrete beam and the outer cement fiber panel One layer of thermal insulation material layer (18). 7. The installation method according to claim 6, characterized in that: an elastic buffer layer is provided on the top of the outer wall.