阅读说明：本技术 一种超高轻钢龙骨隔墙支撑结构、隔墙及其安装方法 (Ultrahigh light steel keel partition wall supporting structure, partition wall and mounting method of partition wall ) 是由 史春芳 沈斌 王磊 熊保龙 肖芳海 丁爽 于 2020-12-21 设计创作，主要内容包括：本发明公开了一种超高轻钢龙骨隔墙支撑结构、隔墙及其安装方法,该超高轻钢龙骨隔墙支撑结构包括多个组合龙骨单元,每个组合龙骨单元包括四根对称设置的C型轻钢龙骨,其中两根设置在组合龙骨单元的一侧,另外两根设置在组合龙骨单元的另一侧,两侧C型轻钢龙骨中间设置有钢板,并且两侧C型轻钢龙骨分别与钢板固定连接；其中,C型轻钢龙骨为竖向龙骨,且每个组合龙骨单元一侧并排固定两根C型轻钢龙骨,并排设置的两根C型轻钢龙骨间隔一定间距错开布置,并通过自钻螺钉相互连接；并且其中,多个组合龙骨单元的C型轻钢龙骨外侧面通过沿水平方向间隔设置的多根钢带固定连接。(The invention discloses an ultrahigh light steel keel partition wall supporting structure, a partition wall and an installation method thereof, wherein the ultrahigh light steel keel partition wall supporting structure comprises a plurality of combined keel units, each combined keel unit comprises four C-shaped light steel keels which are symmetrically arranged, two of the combined keel units are arranged on one side of the combined keel unit, the other two combined keel units are arranged on the other side of the combined keel unit, steel plates are arranged between the C-shaped light steel keels on two sides, and the C-shaped light steel keels on the two sides are respectively and fixedly connected with the steel plates; the C-shaped light steel keels are vertical keels, two C-shaped light steel keels are fixed on one side of each combined keel unit side by side, and the two C-shaped light steel keels arranged side by side are staggered at intervals and are connected with each other through self-drilling screws; and wherein, the outer side of the C-shaped light steel keel of the combined keel units is fixedly connected with a plurality of steel belts arranged at intervals along the horizontal direction.)

1. The supporting structure for the ultrahigh light steel keel partition wall is characterized by comprising a plurality of combined keel units, wherein each combined keel unit comprises four C-shaped light steel keels (1) which are symmetrically arranged, two of the C-shaped light steel keels are arranged on one side of the combined keel unit, the other two of the C-shaped light steel keels are arranged on the other side of the combined keel unit, a steel plate (2) is arranged between the C-shaped light steel keels (1) on two sides, and the C-shaped light steel keels (1) on two sides are respectively and fixedly connected with the steel plate (2);

the C-shaped light steel keels (1) are vertical keels, two C-shaped light steel keels are fixed on one side of each combined keel unit side by side, and two adjacent C-shaped light steel keels are arranged in a staggered mode at intervals and are connected with each other through self-drilling screws (3);

and the outer side surfaces of the C-shaped light steel keels (1) of the combined keel units are fixedly connected through a plurality of steel belts (4) arranged at intervals along the horizontal direction.

2. The ultra-high light gauge steel partition wall supporting structure of claim 1, wherein the width of the C-shaped light gauge steel (1) is 150mm, the thickness is 1mm, two adjacent C-shaped light gauge steel (1) at the same side are connected with each other through a self-drilling screw (3), and the C-shaped light gauge steel (1) at both sides are fixedly connected with the steel plate (2) through two self-drilling screws (3), respectively.

3. The ultra-high lightgage steel joist partition support structure according to claim 1, wherein the gauge of the steel plate (2) is 280 x 200 x 1mm, the gauge of the steel strip (4) is 80 x 0.6mm, and the distance between two adjacent steel strips (4) is 600 mm.

4. An ultra-high light gauge steel partition using the ultra-high light gauge steel partition supporting structure as claimed in any one of claims 1 to 3, it is characterized in that the top of the partition wall is fixedly connected with a top steel beam (13) by adopting a first connecting piece (8), the first connecting piece (8) is fixed below the top steel beam (13), the first connecting piece (8) is connected with the C-shaped light steel keel (1) through a first bolt (7), the bottom of the first connecting piece is fixedly connected with the C-shaped light steel keel (1) through a second connecting piece (14), and the second connecting piece (14) is fixedly connected with the ground through a second bolt (17), a gypsum board (12) is installed to C type light gauge steel (1) lateral surface, gypsum board (12) set up the lateral surface of steel band (4) and with C type light gauge steel (1) fixed connection.

5. The ultra-high light gauge steel partition wall as claimed in claim 4, wherein the first connector (8) and the second connector (14) are both L-shaped angle steel connectors, the top high side cross member (5) is processed into an L-shape, and one side of the bottom high side cross member (16) is cut and processed into an L-shape and fixed to the outer side of the C-shaped light gauge steel (1).

6. The ultra-high light steel keel partition wall according to claim 5, wherein the height of the ultra-high light steel keel partition wall is 13.5m, one or two layers of gypsum boards (12) are arranged on the outer side surface of the C-shaped light steel keel (1), the gypsum boards (12) are fixedly connected with the C-shaped light steel keel (1) through gypsum board fixing and self-tapping screws (9), the gypsum boards (12) are positioned in the center of the C-shaped light steel keel (1), the overlapping width of the gypsum boards (12) and the C-shaped light steel keel (1) is not less than 15mm, the lower opening of the gypsum boards (12) is 10mm away from the ground, the upper opening of the gypsum boards is tightly attached to the floor, and rock wool is filled in the C-shaped light steel keel (1).

7. The ultra-high light steel keel partition wall according to claim 6, wherein square steel adapters (6) with the specification of 25 x 2.5mm are arranged below the top steel beam (13) every 300mm in the horizontal direction, the top of each square steel adapter (6) is connected with the top steel beam (13) in a welding mode, and the bottom of each square steel adapter (6) is fixedly connected with the first connecting piece (8).

8. The method for installing the ultrahigh light steel keel partition wall is characterized by comprising the following steps of:

step S1, preparing installation parts of the first connecting piece (8), the second connecting piece (14) and the C-shaped light steel keel (1);

step S2, a first connecting piece (8) and a second connecting piece (14) are installed, and the first connecting piece (8) is fixed below the top steel beam (13);

step S3, respectively assembling four C-shaped light steel keels (1) and steel plates (2) into combined keel units, and sequentially installing a plurality of combined keel units;

step S4, after all the combined keel units are completely installed, arranging a plurality of steel belts (4) on the outer side surfaces of the C-shaped light steel keels (1) of the combined keel units at intervals along the horizontal direction;

and step S5, mounting a gypsum board (12) on the outer side surface of the C-shaped light steel keel (1).

9. The installation method of claim 8, wherein the step S3 of assembling the four C-shaped light steel keels (1) and the steel plates (2) into the combined keel units, and sequentially installing the combined keel units comprises the steps of: sequentially and horizontally placing four C-shaped light steel keels (1), wherein two C-shaped light steel keels are arranged on one side of the combined keel unit, the other two C-shaped light steel keels are arranged on the other side of the combined keel unit, inserting the steel plate (2) between the C-shaped light steel keels (1) on the two sides, and connecting the four C-shaped light steel keels (1) by using self-drilling screws (3); the combined keel unit is installed from one side of the partition wall, is horizontally placed on the ground, and is vertically arranged in the partition wall direction, and is hoisted by using an electric hoist, so that the combined keel unit is gradually vertically arranged in place; after the combined keel unit is measured horizontally and vertically, the combined keel unit is fixedly connected with the first connecting piece (8) and the second connecting piece (14) at the same time.

10. The mounting method according to claim 8, wherein the step of mounting gypsum boards (12) on the outer side surfaces of the C-shaped light steel keels (1) in step S5 comprises the steps of: the gypsum boards (12) are sequentially installed from one end of a wall body, two adjacent gypsum boards (12) are naturally drawn together, a pipeline and fillers in the wall are installed after the gypsum board (12) on one side is installed, a gypsum board (12) on the other side is installed later, single-layer gypsum boards on two sides of the C-shaped light steel keel (1) or inner and outer two layers of gypsum boards on the same side are installed in a staggered joint mode, the gypsum boards (12) are located in the center of the C-shaped light steel keel (1), the overlapping width of the gypsum boards (12) and the C-shaped light steel keel (1) is not smaller than 15mm, the lower opening of each gypsum board (12) is 10mm away from the ground, the upper opening of each gypsum board is tightly attached to the floor slab, and rock wool is filled in the.

Technical Field

The invention relates to the technical field of architectural decoration, in particular to an ultrahigh light steel keel partition wall supporting structure, a partition wall and an installation method thereof.

Background

In high and large space buildings such as large indoor playgrounds, theme parks and factory buildings, the height of a single-layer space can reach 10-14 m, and light steel keel partition walls or steel frame partition walls are often adopted for partition wall design to meet the indoor partition requirements. When the partition wall height is greater than 10m, adopt conventional light gauge steel partition wall, individual layer C type light gauge steel often is difficult to satisfy the requirement, and material strength and rigidity are not enough to lead to whole deformation big, can't satisfy the requirement of fixed decorative board on surface.

Chinese patent CN 107386495A discloses a section steel reinforced light steel keel partition wall, which mainly comprises a prefabricated ground beam, a ceiling keel, a ground keel, an H-shaped steel column, an H-shaped steel beam, a through keel, a cross keel, a vertical keel, a section steel vibration damping beam, a sliding guide rail and a wall panel; the prefabricated ground beam is arranged at the lower part, the upper part of the prefabricated ground beam is connected with the ground keel, the top of the keel partition wall is connected with the ceiling keel and the sliding guide rail, the H-shaped steel beam, the through keel and the transverse keel are transversely arranged, the H-shaped steel column and the vertical keel are vertically arranged, and the wall panel is arranged outside the partition wall; a vibration damping device is arranged at the connecting position of the partition wall and the wall column; the top is provided with an integral steel hanger connected with the skully keel, and a pipeline fixing frame is reserved.

Chinese patent CN205296489U discloses a super high light steel keel fire partition construction structure, including setting up a plurality of vertical square steel pipes at predetermined wall body fossil fragments position outer wall side, a plurality of vertical square steel pipes set up along vertical direction interval each other, the bottom of a plurality of vertical square steel pipes weld respectively on the steel sheet, the steel sheet pass through expansion bolts to be fixed on the floor, the top of a plurality of vertical square steel pipes weld respectively on the roofing girder steel a plurality of horizontal square steel pipes along the spaced welding from top to bottom of horizontal direction on a plurality of vertical square steel pipes the inboard of the skeleton that a plurality of vertical square steel pipes and a plurality of horizontal square steel pipe formed has wall body fossil fragments through bolt fixed mounting, the height of a plurality of vertical square steel pipes between 5.3m-13 m.

However, most of the prior art adopts a steel frame partition wall, the dead weight of steel is large, and the use space is easily influenced by selecting the components with large models, so that the operation is not easy. If the super-high partition wall adopts a masonry wall or a concrete wall, the work amount is large, and the progress is slow, so that the waste of structural materials is serious, and the influence of winter construction is caused.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide an ultrahigh light steel keel partition wall supporting structure, a partition wall and an installation method thereof, which can effectively solve the problems of large dead weight, long construction period and high cost of the existing steel frame or masonry partition wall.

In order to achieve the purpose, the invention provides an ultrahigh light steel keel partition wall supporting structure which comprises a plurality of combined keel units, wherein each combined keel unit comprises four C-shaped light steel keels which are symmetrically arranged, two of the combined keel units are arranged on one side of the combined keel unit, the other two combined keel units are arranged on the other side of the combined keel unit, steel plates are arranged between the C-shaped light steel keels on the two sides, and the C-shaped light steel keels on the two sides are respectively and fixedly connected with the steel plates; the C-shaped light steel keels are vertical keels, two C-shaped light steel keels are fixed on one side of each combined keel unit side by side, and the two C-shaped light steel keels arranged side by side are staggered at intervals and are connected with each other through self-drilling screws; and wherein, the outer side of the C-shaped light steel keel of the combined keel units is fixedly connected with a plurality of steel belts arranged at intervals along the horizontal direction.

In a preferred embodiment, the width of the C-shaped light gauge steel is 150mm, the thickness of the C-shaped light gauge steel is 1mm, two adjacent C-shaped light gauge steel on the same side are connected with each other through a self-drilling screw, and the C-shaped light gauge steel on the two sides are fixedly connected with the steel plate through two self-drilling screws respectively.

In a preferred embodiment, the gauge of the steel strip is 280 × 200 × 1mm, the gauge of the steel strip is 80 × 0.6mm, and the distance between two adjacent steel strips is 600 mm.

The invention also provides the ultrahigh light steel keel partition wall adopting the supporting structure of the ultrahigh light steel keel partition wall, the top of the partition wall is fixedly connected with the top steel beam by adopting a first connecting piece, the first connecting piece is fixed below the top steel beam and is connected with the C-shaped light steel keel by a first bolt, the bottom of the partition wall is fixedly connected with the C-shaped light steel keel by adopting a second connecting piece, the second connecting piece is fixedly connected with the ground by a second bolt, the outer side surface of the C-shaped light steel keel is provided with a gypsum board, and the gypsum board is arranged on the outer side surface of the steel strip and is fixedly connected with the C-shaped light steel keel.

In a preferred embodiment, the first connecting piece and the second connecting piece are both L-shaped angle steel connecting pieces, the top high-side cross keel is processed into an L shape, one side of the bottom high-side cross keel is cut off and processed into an L shape, and the bottom high-side cross keel is fixed on the outer side of the C-shaped light steel keel.

In a preferred embodiment, the height of the partition wall of the ultra-high light steel keel is 13.5m, one or two layers of gypsum boards are arranged on the outer side surface of the C-shaped light steel keel, the gypsum boards are fixedly connected with the C-shaped light steel keel through gypsum board fixing self-tapping screws, the gypsum boards are located in the center of the C-shaped light steel keel, the overlapping width of the gypsum boards and the C-shaped light steel keel is not less than 15mm, the lower opening of each gypsum board is 10mm away from the ground, the upper opening of each gypsum board is tightly attached to the floor, and rock wool is filled in the C-shaped light steel.

In a preferred embodiment, square steel adapters with the specification of 25 × 2.5mm are arranged below the top steel beam every 300mm in the horizontal direction, the top of each square steel adapter is connected with the top steel beam in a welding mode, and the bottom of each square steel adapter is fixedly connected with the first connecting piece.

The invention also provides an installation method of the ultrahigh light steel keel partition wall, which comprises the following steps: step S1, preparing installation parts of the first connecting piece, the second connecting piece and the C-shaped light steel keel; step S2, mounting a first connecting piece and a second connecting piece, wherein the first connecting piece is fixed below the top steel beam; step S3, respectively assembling four C-shaped light steel keels and steel plates into combined keel units, and sequentially installing a plurality of combined keel units; step S4, after all the combined keel units are completely installed, arranging a plurality of steel strips on the outer side surfaces of the C-shaped light steel keels of the combined keel units at intervals along the horizontal direction; and step S5, mounting a gypsum board on the outer side surface of the C-shaped light steel keel.

In a preferred embodiment, the step S3 of assembling the four C-shaped light steel keels and the steel plates into the combined keel units, and sequentially installing the combined keel units comprises the following steps: sequentially and horizontally positioning four C-shaped light steel keels, wherein two C-shaped light steel keels are arranged on one side of the combined keel unit, the other two C-shaped light steel keels are arranged on the other side of the combined keel unit, inserting a steel plate between the C-shaped light steel keels on the two sides, and connecting the four C-shaped light steel keels by adopting self-drilling screws; installing a combined keel unit from one side of the partition wall, horizontally placing the combined keel unit on the ground, wherein the direction is vertical to the direction of the partition wall, hoisting by using an electric hoist, and gradually vertically placing the combined keel unit in place; after the combined keel unit is measured horizontally and vertically, the combined keel unit is fixedly connected with the first connecting piece and the second connecting piece.

In a preferred embodiment, the step of installing gypsum boards on the outer side surfaces of the C-shaped light steel joists in the step S5 comprises the following steps: the gypsum board is installed in order from one end of the wall body, two adjacent gypsum boards are naturally drawn close, pipeline and filler in the wall are installed after the installation of one side gypsum board is completed, then, another side gypsum board is installed, single-layer gypsum boards on two sides of the C-shaped light steel keel or staggered joint installation of two layers of gypsum boards inside and outside the same side is completed, wherein the gypsum board is located in the center of the C-shaped light steel keel, the overlapping width of the gypsum board and the C-shaped light steel keel is not smaller than 15mm, the lower opening of the gypsum board is 10mm away from the ground, the upper opening of the gypsum board is tightly attached to the floor, and.

Compared with the prior art, the invention has the following advantages: the ultrahigh light steel keel partition wall supporting structure comprises a plurality of combined keel units, each combined keel unit comprises four C-shaped light steel keels which are symmetrically arranged, the thickness of each combined keel unit is only 1mm, the self weight of the whole structure is far smaller than that of a framework system made of masonry, concrete, steel frameworks and other materials due to the design of the combined keel units, materials are saved, cost is saved, and the requirements of the load of a floor slab and the bearing capacity of a foundation are reduced. The whole body adopts the light steel keel and the steel plate and the steel belt, so that the wet-free operation is realized, and the construction process is accelerated particularly in winter. The ultrahigh light steel keel partition wall can meet the design requirement of an ultrahigh partition wall of 10-14 m.

Drawings

Figure 1 is a cross-sectional schematic view of a composite keel unit according to an embodiment of the invention.

Fig. 2 is an elevational view of the overall skeleton according to an embodiment of the invention.

Figure 3 is a partial top view of an ultra high light gauge steel partition according to an embodiment of the present invention.

Fig. 4 is a sectional view taken along a-a in fig. 3.

Fig. 5 is a partial schematic view of the bottom of an ultra-high light gauge steel partition wall according to an embodiment of the present invention.

Fig. 6 shows an arrangement of gypsum board-fixing tapping screws according to an embodiment of the present invention.

Description of the main reference numerals:

1-C type light steel keel, 2-steel plate, 3-self-drilling screw, 4-steel band, 6-square steel adaptor, 7-first bolt, 8-first connecting piece, 9-gypsum board fixing self-tapping screw, 12-gypsum board, 13-top steel beam, 14-second connecting piece and 17-second bolt.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Example 1

As shown in fig. 1 to 2, the ultra-high light gauge steel partition wall supporting structure according to the preferred embodiment of the present invention includes a plurality of combined gauge steel units 101, and each of the combined gauge steel units 101 includes four C-shaped light gauge steel 1 symmetrically disposed, two of which are disposed at one side of the combined gauge steel unit and the other two of which are disposed at the other side of the combined gauge steel unit. The middle of the C-shaped light steel keels 1 on the two sides is provided with a steel plate 2, and the C-shaped light steel keels 1 on the two sides are fixedly connected with the steel plate 2 respectively. Wherein, C type light gauge steel 1 is vertical keel, and every combination fossil fragments unit 101 one side fixes two C type light gauge steel 1 side by side, and two adjacent C type light gauge steel 1 intervals are the arrangement of staggering to through boring screw 3 interconnect certainly. The outer side surfaces of the C-shaped light steel keels 1 of the combined keel units 101 are fixedly connected through a plurality of steel belts 4 arranged at intervals along the horizontal direction so as to be connected into a whole.

In the above scheme, the width of the C-shaped light steel keel 1 is 150mm, the thickness is only 1mm, two adjacent C-shaped light steel keels 1 on the same side are connected with each other through a self-drilling screw 3, and the C-shaped light steel keels 1 on two sides are respectively fixedly connected with the steel plate 2 through two self-drilling screws 3. The specification of the steel plate 2 is 280 × 200 × 1mm, the specification of the steel strip 4 is 80 × 0.6mm, and the distance between two adjacent steel strips 4 is 600 mm. The intersection of the C-shaped light steel keel 1 and the steel belt 4 is connected through a single self-drilling screw 3.

Example 2

As shown in fig. 3 to 5, the present invention further provides an ultra-high light gauge steel partition wall using the above ultra-high light gauge steel partition wall supporting structure, in this embodiment, the height of the ultra-high light gauge steel partition wall is 13.5m, and the veneer is a gypsum plaster board. Partition wall top adopts first connecting piece 8 and top girder steel 13 fixed connection, and first connecting piece 8 is fixed in the below of top girder steel 13. The first connecting piece 8 is connected with the C-shaped light steel keel 1 through a first bolt 7, the second connecting piece 14 is fixedly connected with the C-shaped light steel keel 1 through two flat-head self-drilling screws 15, and the second connecting piece 14 is fixedly connected with the ground through a second bolt 17. And a gypsum board 12 is arranged on the outer side surface of the C-shaped light steel keel 1, and the gypsum board 12 is arranged on the outer side surface of the steel belt 4 and is fixedly connected with the C-shaped light steel keel 1.

In this embodiment, the first connecting member 8 and the second connecting member 14 are both L-shaped angle steel connecting members, the first connecting member 8 and the second connecting member 14 are sliding connecting members, and the first connecting member 8 and the second connecting member 14 are provided with long waist holes for accommodating the first bolt 7 and the second bolt 17, respectively. The top high-side cross keel 5 is processed into an L shape, one side of the bottom high-side cross keel 16 is cut off and processed into an L shape, and the L shape is fixed on the outer side of the C-shaped light steel keel 1.

Furthermore, the lateral surface of C type light gauge steel 1 is provided with one deck or two-layer gypsum board 12, and gypsum board 12 passes through gypsum board fixed tapping screw 9 and C type light gauge steel 1 fixed connection. The gypsum board 12 is located the central authorities of C type light gauge steel 1, and the overlapping width of gypsum board 12 and C type light gauge steel 1 should be not less than 15mm, and the gypsum board 12 end opening is 10mm from the ground, avoids direct and the terrace contact, and the gypsum board is suitable for reading and is pasted the floor closely, does not leave the space (except that sound insulation, fire-proof partition wall). Rock wool is filled in the C-shaped light steel keel 1.

Example 3

In a preferred embodiment, if the wall thickness of the flange of the top steel beam 13 of the original structure is thick, and the L-shaped angle steel connecting piece cannot be directly installed by bolts or self-drilling screws, the square steel adapter 6 with the specification of 25 × 2.5mm is arranged below the top steel beam 13 along the horizontal direction at intervals of 300mm and is filled with the fireproof sealant 10, the direction is perpendicular to the direction of the top steel beam 13, the top of the square steel adapter 6 is welded with the top steel beam 13, and the bottom of the square steel adapter 6 is fixedly connected with the first connecting piece 8.

Example 4

The invention also provides an installation method of the ultrahigh light steel keel partition wall, which comprises the following steps:

step S1, preparing installation positions of the first connecting piece 8, the second connecting piece 14 and the C-shaped light steel keel 1, specifically, removing the fireproof coating at the bottom of the top I-shaped steel girder, and only removing the positions where the L-shaped angle steel connecting piece and the C-shaped light steel keel are needed to be installed. If the wall thickness of the flange of the steel beam of the original structure is thick, the L-shaped angle steel connecting piece cannot be installed by bolts or self-drilling screws, the square tube can be adopted as an adapter to be welded below the top steel beam 13, the direction of the square tube is perpendicular to the direction of the top steel beam, and the distance is 300 mm.

And step S2, installing the first connecting piece 8 and the second connecting piece 14, wherein the first connecting piece 8 is fixed below the top steel beam 13.

And S3, respectively assembling the four C-shaped light steel keels 1 and the steel plates 2 into combined keel units, and sequentially installing the combined keel units. The method specifically comprises the following steps: the method is characterized in that four C-shaped light steel keels 1 and steel plates 2 are assembled into combined keel units respectively, and the installation of the combined keel units sequentially comprises the following steps: sequentially and horizontally positioning four C-shaped light steel keels 1, wherein two C-shaped light steel keels are arranged on one side of a combined keel unit, the other two C-shaped light steel keels are arranged on the other side of the combined keel unit, inserting a steel plate 2 between the C-shaped light steel keels 1 on the two sides, and connecting the four C-shaped light steel keels 1 by using self-drilling screws 3; installing a combined keel unit from one side of the partition wall, horizontally placing the combined keel unit on the ground, wherein the direction is vertical to the direction of the partition wall, hoisting by using an electric hoist, and gradually vertically placing the combined keel unit in place; after the combined keel unit is measured horizontally and vertically, the combined keel unit is fixedly connected with the first connecting piece 8 and the second connecting piece 14.

And step S4, after all the combined keel units are completely installed, the outer side surfaces of the C-shaped light steel keels 1 of the combined keel units are transversely connected in a full-length mode in a parallel steel strip mode, and the steel strips 4 are fixed one by one at intervals of 600mm from top to bottom. And a full-length galvanized steel plate with the height of 70mm and the thickness of 2mm is welded on the outer side of the top steel beam to serve as an outer side baffle plate at the top of the vertical keel.

And step S5, installing a gypsum board 12 on the outer side surface of the C-shaped light steel keel 1, arranging the gypsum board 12 on the outer side of the steel strip 4, and fixedly connecting the gypsum board 12 with the C-shaped light steel keel 1. Specifically, in step S5, the step of attaching the gypsum board 12 to the outer side surface of the C-shaped light gauge steel 1 includes the steps of: the gypsum boards 12 are sequentially installed from one end of the wall body, two adjacent gypsum boards 12 naturally close, and the seam is reserved according to the design requirement. After the gypsum boards 12 on one side are installed, pipelines and fillers in the wall are installed, then, gypsum boards 12 on the other side are installed, and single-layer gypsum boards on two sides of the C-shaped light steel keel 1 or inner and outer gypsum boards on the same side are installed in a staggered joint mode.

Example 5

When the partition wall height is greater than the gypsum board and vertical assembly is carried out, the gypsum boards on two sides and the transverse joints of the inner layer gypsum board and the outer layer gypsum board on the same side must be staggered. The gypsum board 12 is located the central authorities of C type light gauge steel 1, and the overlapping width of gypsum board 12 and C type light gauge steel 1 should be not less than 15mm, and the gypsum board 12 end opening is greater than 10mm from ground, avoids direct and terrace contact, and the gypsum board is suitable for reading and is pasted the floor closely, does not keep the space (except that sound insulation, fire-proof partition wall).

The gypsum board fixing self-tapping screw 9 is driven by an electric screwdriver at one time, should be sunk into the surface of the gypsum board 12 to a depth of 0.5 mm-1 mm, and should not cut off surface paper to expose gypsum. The gypsum board fixing self-tapping screw 9 is preferably 10-15 mm away from the wrapping edge, and preferably 15-20 mm away from the cutting edge. The gypsum board fixes the distance of the self-tapping screws 9, the board edge is preferably 200mm, and the middle of the board is preferably 300 mm. The gypsum board fixing self-tapping screws are arranged as shown in fig. 6.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.