Construction method of dense-rib membrane shell structure

Abstract

The invention relates to the technical field of fabricated buildings, in particular to a construction method of a dense-rib membrane shell structure, which comprises the following steps: prefabricating to form a plurality of cavity membrane shell components, each cavity membrane shell component comprises a bottom plate and at least two cavity membrane shell units, and both sides of the bottom plate in the width direction exceed the cavity membrane shell units; a frame beam supporting frame body is erected, and a frame beam formwork is erected on the frame beam supporting frame body; the cavity membrane shell assemblies are sequentially hoisted between the frame beam formworks, and membrane shell supports are arranged below the intersections of the pouring areas of the longitudinal dense rib hidden beams and the transverse dense rib hidden beams; and carrying out a concrete pouring process to form a frame beam, a longitudinal dense rib hidden beam, a transverse dense rib hidden beam and a cast-in-place floor slab. The construction method is easy to operate, economical, efficient, green and environmentally friendly, supports and formworks are reduced, and the work efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated buildings, and in particular to a construction method of a dense-rib membrane shell structure. Background Art

[0002] Under the existing technical background, the dense rib cavity membrane shell is basically the smallest unit component, and its formwork process is still the same as the cast-in-place concrete structure, which is cumbersome, takes a long time to lay out and position, and needs to be assembled one by one, which is inefficient. Therefore, how to solve the problem of cumbersome positioning, numerous supports, and low efficiency of the dense rib membrane shell structure has become a research direction for those skilled in the art. Summary of the invention

[0003] In view of the above-mentioned problems, the present invention discloses a construction method of a dense-ribbed membrane shell structure to solve the problems of the dense-ribbed membrane shell structure in the prior art, such as complicated positioning, numerous supports and low work efficiency.

[0004] A construction method of a dense rib membrane shell structure comprises the following steps:

[0005] Prefabricate a plurality of cavity membrane shell assemblies, each of which comprises a bottom plate and at least two cavity membrane shell units, and the at least two cavity membrane shell units are fixed on the bottom plate at intervals along the length direction of the bottom plate, the length of each cavity membrane shell assembly is equal to the spacing between adjacent frame beams, and both sides of the bottom plate in the width direction exceed the cavity membrane shell unit;

[0006] Supporting a frame beam support frame, and supporting a frame beam template on the frame beam support frame;

[0007] The cavity membrane shell components are sequentially hoisted between the frame beam templates, and a membrane shell support is arranged below the intersection of the casting area of ​​the longitudinal dense rib dark beam and the transverse dense rib dark beam, wherein the gap between the adjacent cavity membrane shell units in each cavity membrane shell component is the casting area of ​​the longitudinal dense rib dark beam, and the gap between the cavity membrane shell units in adjacent cavity membrane shell components is the casting area of ​​the transverse dense rib dark beam;

[0008] The concrete pouring process is carried out to form frame beams, longitudinal dense-ribbed hidden beams, transverse dense-ribbed hidden beams and cast-in-place floor slabs.

[0009] In some of the embodiments, each of the cavity membrane shell components includes three cavity membrane shell units.

[0010] In some of the embodiments, the base plate is a precast concrete plate or a steel plate.

[0011] In some embodiments, the cavity membrane shell unit includes a top plate and four side plates arranged between the top plate and the bottom plate.

[0012] In some of the embodiments, both the top plate and the bottom plate are made of lightweight materials.

[0013] In some of the embodiments, the lightweight material is aluminum alloy.

[0014] In some of the embodiments, the height of the portion of the bottom plate located outside the cavity membrane shell unit is lower than the height of the bottom plate located directly below the cavity membrane shell unit.

[0015] Compared with the prior art, the above invention has one of the following advantages or beneficial effects:

[0016] The construction method of the dense-rib membrane shell structure disclosed in the present invention is simple to operate, economical and efficient, reduces supports and formwork, improves work efficiency, and is environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention and its features, configurations and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same layers throughout the drawings. The drawings are not drawn to scale, and emphasis is placed on illustrating the subject matter of the present invention.

[0018] Figure 1 It is a longitudinal cross-sectional schematic diagram of a cavity membrane shell assembly in an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the transverse section of the cavity membrane shell assembly in the embodiment of the present invention

[0020] Figure 3 It is a schematic plan view of a dense rib membrane shell structure in an embodiment of the present invention;

[0021] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0022] Among them: 1-cavity membrane shell assembly; 11-bottom plate; 12-cavity membrane shell unit; 2-transverse dense-rib hidden beam; 3-longitudinal dense-rib hidden beam; 4-cast-in-place cast-in-place floor slab; 5-frame beam; 6-membrane shell support; 7-frame beam support frame. DETAILED DESCRIPTION

[0023] The present invention is further described below with reference to the accompanying drawings and specific embodiments, but is not intended to be a limitation of the present invention.

[0024] like Figures 1 to 4 As shown, this embodiment discloses a construction method of a dense rib membrane shell structure. Specifically, the construction method comprises the following steps:

[0025] Step S1, prefabricate three cavity membrane shell assemblies 1, each cavity membrane shell assembly 1 includes a bottom plate 11 and three cavity membrane shell units 12, and the three cavity membrane shell units 12 are fixed on the bottom plate 11 at intervals along the length direction of the bottom plate 11, the length of each cavity membrane shell assembly 1 is equal to the spacing between adjacent frame beams 5, and both sides of the bottom plate 11 in the width direction exceed the cavity membrane shell unit 12. Specifically, the spacing between adjacent frame beams 5 is used as the manufacturing length of the cavity membrane shell assembly 1, the bottom plate 11 is prefabricated first, and then the side plate and the top plate are installed to form the cavity membrane shell assembly 1; Figure 1 and 2 The structure shown.

[0026] Specifically, the bottom plate 11 is a precast concrete plate or a steel plate, and the cavity membrane shell unit 12 includes a top plate and four side plates arranged between the top plate and the bottom plate 11, and the top plate and the bottom plate 11 are both made of lightweight materials. The lightweight material is aluminum alloy, and the height of the bottom plate 11 located outside the cavity membrane shell unit 12 is lower than the height of the bottom plate 11 located directly below the cavity membrane shell unit 12.

[0027] Step S2, support the frame beam support frame 7, and support the frame beam template on the frame beam support frame 7. Since both fixing the frame beam support frame 7 and supporting the frame beam 5 template on the frame beam support frame 7 can adopt techniques well known to those skilled in the art, they will not be described in detail here.

[0028] Step S3, hoist the cavity membrane shell assembly 1 between the frame beam templates in sequence, and set a membrane shell support 6 below the intersection of the casting area of ​​the longitudinal dense-ribbed dark beam 3 and the transverse dense-ribbed dark beam 2 (i.e., the intersection position of the dense-ribbed beam); wherein, the gap between adjacent cavity membrane shell units 12 in each cavity membrane shell assembly 1 is the casting area of ​​the longitudinal dense-ribbed dark beam 3, and the gap between the cavity membrane shell units 12 in adjacent cavity membrane shell assemblies 1 is the casting area of ​​the transverse dense-ribbed dark beam 2; thereby, there is no need to support the dense-ribbed dark beam template separately, and only a small number of membrane shell supports 6 need to be set below the intersection of the casting area of ​​the longitudinal dense-ribbed dark beam 3 and the transverse dense-ribbed dark beam 2, thereby reducing the support and template, and having the advantages of simple operation, safety, reliability, and green environmental protection.

[0029] Step S4, performing a concrete pouring process to form frame beams 5, longitudinal dense ribbed hidden beams 3, transverse dense ribbed hidden beams 2 and cast-in-place floor slabs 4, completing the construction of the dense ribbed membrane shell structure; Figure 3 and 4 The structure shown.

[0030] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present invention, and will not be described in detail here.

[0031] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention are still within the scope of protection of the technical solutions of the present invention.

Claims

1. A construction method for a dense rib membrane shell structure, characterized in that: The steps include: Prefabricate a plurality of cavity membrane shell assemblies, each of which comprises a bottom plate and at least two cavity membrane shell units, and the at least two cavity membrane shell units are fixed on the bottom plate at intervals along the length direction of the bottom plate, the length of each cavity membrane shell assembly is equal to the spacing between adjacent frame beams, and both sides of the bottom plate in the width direction exceed the cavity membrane shell unit; Supporting a frame beam support frame, and supporting a frame beam template on the frame beam support frame; The cavity membrane shell components are sequentially hoisted between the frame beam templates, and a membrane shell support is arranged below the intersection of the casting area of ​​the longitudinal dense rib dark beam and the transverse dense rib dark beam, wherein the gap between the adjacent cavity membrane shell units in each cavity membrane shell component is the casting area of ​​the longitudinal dense rib dark beam, and the gap between the cavity membrane shell units in adjacent cavity membrane shell components is the casting area of ​​the transverse dense rib dark beam; The concrete pouring process is carried out to form frame beams, longitudinal dense-ribbed hidden beams, transverse dense-ribbed hidden beams and cast-in-place floor slabs.

2. The construction method of the dense rib membrane shell structure according to claim 1, characterized in that: Each of the cavity membrane shell components includes three cavity membrane shell units.

3. The construction method of the dense ribbed membrane shell structure according to claim 1, characterized in that: The bottom plate is a prefabricated concrete plate or a steel plate.

4. The construction method of the dense rib membrane shell structure according to claim 1, characterized in that: The cavity membrane shell unit includes a top plate and four side plates arranged between the top plate and the bottom plate.

5. The construction method of the dense ribbed membrane shell structure according to claim 4, characterized in that: The top plate and the bottom plate are both made of lightweight materials.

6. The construction method of the dense ribbed membrane shell structure according to claim 5, characterized in that: The lightweight material is aluminum alloy.

7. The construction method of the dense ribbed membrane shell structure according to claim 1, characterized in that: The height of the portion of the bottom plate located outside the cavity membrane shell unit is lower than the height of the bottom plate located directly below the cavity membrane shell unit.

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